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SETBP1 - 版本历史
2026-04-18T11:00:27Z
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2026年1月1日 (四) 20:49 77921020
2026-01-01T20:49:37Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上一版本</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2026年1月1日 (四) 20:49的版本</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >第3行：</td>
<td colspan="2" class="diff-lineno">第3行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <div style="margin-bottom: 30px; border-bottom: 1.2px solid #e2e8f0; padding-bottom: 25px;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <div style="margin-bottom: 30px; border-bottom: 1.2px solid #e2e8f0; padding-bottom: 25px;"></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="font-size: 1.1em; margin: 10px 0; color: #334155; text-align: justify;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="font-size: 1.1em; margin: 10px 0; color: #334155; text-align: justify;"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <strong>SETBP1</strong>（SET Binding Protein <del class="diffchange diffchange-inline">1）编码一种与 </del><strong>[[SET]]</strong> <del class="diffchange diffchange-inline">核原癌基因结合的蛋白质，是细胞增殖信号的关键调节因子。正常情况下，SETBP1 的表达受到严格调控，通过泛素</del>-<del class="diffchange diffchange-inline">蛋白酶体途径快速降解。然而，当其关键的“降解信号”（Degron）区域发生突变时，SETBP1 </del>蛋白会逃避降解并在细胞核内异常积累。过量的 SETBP1 会结合并稳定 SET <del class="diffchange diffchange-inline">蛋白，进而抑制肿瘤抑制因子 </del><strong>[[PP2A]]</strong>（蛋白磷酸酶 2A）的活性，导致 MAPK/ERK 和 AKT 等增殖通路持续活化。临床上，SETBP1 <del class="diffchange diffchange-inline">的胚系突变导致严重的 </del><strong>[[Schinzel-Giedion综合征]]</strong><del class="diffchange diffchange-inline">，而体细胞突变则是不典型慢性髓系白血病 </del>(aCML) 和幼年型粒单核细胞白血病 (JMML) 等难治性血液肿瘤的标志。</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <strong>SETBP1</strong>（SET Binding Protein <ins class="diffchange diffchange-inline">1）编码一种核蛋白，通过与原癌基因 </ins><strong>[[SET]]</strong> <ins class="diffchange diffchange-inline">结合，成为细胞增殖信号的关键调节因子。正常情况下，SETBP1 的表达受到严格调控，通过<strong>[[泛素</ins>-<ins class="diffchange diffchange-inline">蛋白酶体途径]]</strong>快速降解。然而，当其关键的“降解信号”（<strong>[[Degron]]</strong>）区域发生突变时，SETBP1 </ins>蛋白会逃避降解并在细胞核内异常积累。过量的 SETBP1 会结合并稳定 SET <ins class="diffchange diffchange-inline">蛋白，进而强效抑制肿瘤抑制因子 </ins><strong>[[PP2A]]</strong>（蛋白磷酸酶 2A）的活性，导致 <ins class="diffchange diffchange-inline"><strong>[[</ins>MAPK/ERK<ins class="diffchange diffchange-inline">]]</strong> </ins>和 <ins class="diffchange diffchange-inline"><strong>[[PI3K/</ins>AKT<ins class="diffchange diffchange-inline">]]</strong> </ins>等增殖通路持续活化。临床上，SETBP1 <ins class="diffchange diffchange-inline">的<strong>[[胚系突变]]</strong>导致严重的 </ins><strong>[[Schinzel-Giedion综合征]]</strong><ins class="diffchange diffchange-inline">，而<strong>[[体细胞突变]]</strong>则是不典型慢性髓系白血病 </ins>(<ins class="diffchange diffchange-inline"><strong>[[</ins>aCML<ins class="diffchange diffchange-inline">]]</strong></ins>) 和幼年型粒单核细胞白血病 (<ins class="diffchange diffchange-inline"><strong>[[</ins>JMML<ins class="diffchange diffchange-inline">]]</strong></ins>) 等难治性血液肿瘤的标志。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l46" >第46行：</td>
<td colspan="2" class="diff-lineno">第46行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">OMIM 编号</th></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">OMIM 编号</th></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">611060</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">611060</td></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </tr></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <tr></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">RefSeq (mRNA)</th></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">NM_015559</td></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </tr></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <tr></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">RefSeq (蛋白)</th></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">NP_056374</td></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l53" >第53行：</td>
<td colspan="2" class="diff-lineno">第61行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">分子量</th></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">分子量</th></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">170 kDa <del class="diffchange diffchange-inline">(理论值)</del></td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;"><ins class="diffchange diffchange-inline">~</ins>170 kDa</td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l61" >第61行：</td>
<td colspan="2" class="diff-lineno">第69行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569;">突变热点</th></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569;">突变热点</th></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; color: #b91c1c;"><strong>D868</strong>, S869, G870<del class="diffchange diffchange-inline">, I871 </del>(SKI区)</td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; color: #b91c1c;"><strong>D868</strong>, S869, G870 (SKI区)</td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </table></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </table></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l70" >第70行：</td>
<td colspan="2" class="diff-lineno">第78行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin: 15px 0; text-align: justify;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin: 15px 0; text-align: justify;"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> SETBP1 致病的核心机制是典型的<strong>功能获得性 (Gain-of-Function)</strong> 突变，通过干扰蛋白质的正常周转来实现。</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> SETBP1 致病的核心机制是典型的<strong><ins class="diffchange diffchange-inline">[[</ins>功能获得性<ins class="diffchange diffchange-inline">]] </ins>(Gain-of-Function)</strong> 突变，通过干扰蛋白质的正常周转来实现。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <ul style="padding-left: 25px; color: #334155;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <ul style="padding-left: 25px; color: #334155;"></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <li style="margin-bottom: 12px;"><strong>Degron 的破坏：</strong></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <li style="margin-bottom: 12px;"><strong>Degron 的破坏：</strong></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <br>SETBP1 含有一个保守的 SKI 同源区，其中包含一个关键的共有序列（D-S-G-x-x-S），作为被 <del class="diffchange diffchange-inline">E3 泛素连接酶（如 </del><strong>[[β-TrCP]]</strong>）识别的“降解信号” (Degron)。在 SGS 和白血病中发现的绝大多数突变（如 <strong>D868N</strong>, <strong>I871T</strong>）都集中在这个狭小的区域。突变破坏了 E3 连接酶的结合，导致 SETBP1 <del class="diffchange diffchange-inline">无法被泛素化，从而在细胞内大量堆积。</del></li></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <br>SETBP1 含有一个保守的 SKI 同源区，其中包含一个关键的共有序列（D-S-G-x-x-S），作为被 <ins class="diffchange diffchange-inline"><strong>[[E3泛素连接酶]]</strong>（如 </ins><strong>[[β-TrCP]]</strong>）识别的“降解信号” (<ins class="diffchange diffchange-inline"><strong>[[</ins>Degron<ins class="diffchange diffchange-inline">]]</strong></ins>)。在 SGS 和白血病中发现的绝大多数突变（如 <strong>D868N</strong>, <strong>I871T</strong>）都集中在这个狭小的区域。突变破坏了 E3 连接酶的结合，导致 SETBP1 <ins class="diffchange diffchange-inline">无法被<strong>[[泛素化]]</strong>，从而在细胞内大量堆积。</ins></li></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <li style="margin-bottom: 12px;"><strong>PP2A 的抑制：</strong></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <li style="margin-bottom: 12px;"><strong>PP2A 的抑制：</strong></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <br>积累的 SETBP1 蛋白与其伴侣蛋白 <strong>[[SET]]</strong> 紧密结合，防止 SET 被蛋白酶裂解。高水平的 SET 蛋白是一个强效的 <strong>[[PP2A]]</strong> (Protein Phosphatase 2A) 抑制剂。PP2A 本应负责让激酶“冷却”下来，一旦被抑制，其下游的促增殖通路（如 <strong>[[AKT]]</strong>, <strong>[[ERK]]</strong>）就会持续过度活化，导致细胞恶性增殖或发育异常。</li></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <br>积累的 SETBP1 蛋白与其伴侣蛋白 <strong>[[SET]]</strong> 紧密结合，防止 SET 被蛋白酶裂解。高水平的 SET 蛋白是一个强效的 <strong>[[PP2A]]</strong> (Protein Phosphatase 2A) 抑制剂。PP2A 本应负责让激酶“冷却”下来，一旦被抑制，其下游的促增殖通路（如 <strong>[[AKT]]</strong>, <strong>[[ERK]]</strong>）就会持续过度活化，导致细胞恶性增殖或发育异常。</li></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l86" >第86行：</td>
<td colspan="2" class="diff-lineno">第94行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin-bottom: 0; text-align: justify; font-size: 0.95em; color: #334155;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin-bottom: 0; text-align: justify; font-size: 0.95em; color: #334155;"></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> SETBP1 突变在发育和肿瘤中表现出惊人的相似性（位点几乎重合），但发生的时间决定了疾病的性质：</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> SETBP1 突变在发育和肿瘤中表现出惊人的相似性（位点几乎重合），但发生的时间决定了疾病的性质：</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <br><strong>胚系突变 (Germline)：</strong> 导致先天性的 Schinzel-<del class="diffchange diffchange-inline">Giedion 综合征。</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <br><strong><ins class="diffchange diffchange-inline">[[</ins>胚系突变<ins class="diffchange diffchange-inline">]] </ins>(Germline)：</strong> 导致先天性的 <ins class="diffchange diffchange-inline">[[</ins>Schinzel-<ins class="diffchange diffchange-inline">Giedion综合征]]。</ins></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <br><strong>体细胞突变 (Somatic)：</strong> 导致成人的恶性髓系血液病。</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <br><strong><ins class="diffchange diffchange-inline">[[</ins>体细胞突变<ins class="diffchange diffchange-inline">]] </ins>(Somatic)：</strong> 导致成人的恶性髓系血液病。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l106" >第106行：</td>
<td colspan="2" class="diff-lineno">第114行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">不典型 [[CML]] (aCML)</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">不典型 [[CML]] (aCML)</td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">体细胞</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">体细胞</td></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">SETBP1 突变在 aCML 中发生率约 25%。由于不携带 BCR-ABL <del class="diffchange diffchange-inline">融合基因，对伊马替尼无效。SETBP1 </del>突变提示<strong>预后不良</strong>，易转化为 <del class="diffchange diffchange-inline">AML。</del></td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">SETBP1 突变在 aCML 中发生率约 25%。由于不携带 <ins class="diffchange diffchange-inline">[[</ins>BCR-ABL<ins class="diffchange diffchange-inline">]] 融合基因，对[[伊马替尼]]无效。SETBP1 </ins>突变提示<strong>预后不良</strong>，易转化为 <ins class="diffchange diffchange-inline">[[AML]]。</ins></td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[JMML]] / CMML</td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[JMML]] / <ins class="diffchange diffchange-inline">[[</ins>CMML<ins class="diffchange diffchange-inline">]]</ins></td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">体细胞</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">体细胞</td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">在幼年型粒单核细胞白血病 (JMML) 和慢性粒单核细胞白血病 (CMML) 中作为继发突变出现，常与疾病进展和化疗耐药相关。</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">在幼年型粒单核细胞白血病 (JMML) 和慢性粒单核细胞白血病 (CMML) 中作为继发突变出现，常与疾病进展和化疗耐药相关。</td></div></td></tr>
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77921020
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<strong>SETBP1</strong>（SET Binding Protein 1），编码<strong>SET 结合蛋白 1</strong>。它是一种多功能的核蛋白，主要通过含有 <strong>[[AT-hook]]</strong> 的结构域结合 DNA 来调控基因转录，同时通过与 <strong>[[SET]]</strong> 蛋白（一种内源性 PP2A 抑制剂）结合来调节细胞信号转导。SETBP1 的生物学功能呈现出显著的“剂量效应”和“突变特异性”：其生殖系（Germline）特定位点的功能获得性突变导致严重的<strong>[[Schinzel-Giedion综合征]] (SGS)</strong>；而体细胞突变则是<strong>[[非典型慢性髓系白血病]] (aCML)</strong> 和<strong>[[幼年型粒单核细胞白血病]] (JMML)</strong> 等难治性髓系肿瘤的驱动事件。其核心致病机制在于突变破坏了蛋白的<strong>[[降解]]</strong>信号（Degron），导致 SETBP1 异常积聚，进而抑制肿瘤抑制因子 <strong>[[PP2A]]</strong> 的活性，激活致癌信号通路。<br />
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<div style="font-size: 1.2em; font-weight: bold; letter-spacing: 1.2px;">SETBP1 · 基因档案</div><br />
<div style="font-size: 0.7em; opacity: 0.85; margin-top: 4px; white-space: nowrap;">Gene & Protein Profile (点击展开)</div><br />
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[[文件:SETBP1_PP2A_Inhibition.png|100px|SETBP1-SET-PP2A 轴]]<br />
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<div style="font-size: 0.8em; color: #64748b; margin-top: 12px; font-weight: 600;">转录调节因子 / PP2A 抑制剂</div><br />
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<th style="text-align: left; padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #475569; background-color: #f8fafc; width: 40%;">基因符号</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #0f172a;"><strong>SETBP1</strong></td><br />
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<th style="text-align: left; padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #475569; background-color: #f8fafc;">全称</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #0f172a;">SET binding protein 1</td><br />
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<th style="text-align: left; padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #475569; background-color: #f8fafc;">染色体位置</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #0f172a;">18q12.3</td><br />
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<th style="text-align: left; padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #475569; background-color: #f8fafc;">Entrez ID</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #1e40af;">26040</td><br />
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<th style="text-align: left; padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #475569; background-color: #f8fafc;">HGNC ID</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #1e40af;">15573</td><br />
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<td style="padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #1e40af;">Q9Y6X0</td><br />
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<th style="text-align: left; padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #475569; background-color: #f8fafc;">分子量</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #f1f5f9; color: #0f172a;">~175 kDa</td><br />
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<th style="text-align: left; padding: 8px 12px; color: #475569; background-color: #f8fafc;">关键伴侣</th><br />
<td style="padding: 8px 12px; color: #0f172a;">SET (I2PP2A)</td><br />
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<h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">分子机制：蛋白稳定的破坏与 PP2A 沉默</h2><br />
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SETBP1 的致病机制主要围绕其蛋白稳定性的改变及其对 PP2A 肿瘤抑制通路的干扰。<br />
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<li style="margin-bottom: 12px;"><strong>Degron 破坏与蛋白积聚：</strong> SETBP1 蛋白含有一个关键的 <strong>[[Ski]] 同源区</strong>，该区域包含一个负责泛素化降解的一致性序列（Degron）。在 SGS 和白血病中，突变（如 D868N, G870S）集中发生在这一降解热点区。这些突变破坏了 E3 泛素连接酶（如 [[SCF-β-TrCP]]）的识别，导致 SETBP1 蛋白无法被降解，在细胞内大量积聚。</li><br />
<li style="margin-bottom: 12px;"><strong>SET-PP2A 轴的劫持：</strong> 过量的 SETBP1 与 <strong>[[SET]]</strong> 蛋白（也称 I2PP2A）结合形成复合物，保护 SET 免受蛋白酶降解。SET 是<strong>[[蛋白磷酸酶2A]] (PP2A)</strong> 的强效内源性抑制剂。<br />
<br><strong>后果：</strong> SETBP1 积聚 $\rightarrow$ SET 积聚 $\rightarrow$ PP2A 活性被抑制 $\rightarrow$ AKT、ERK、MYC 等促增殖信号持续活化。</li><br />
<li style="margin-bottom: 12px;"><strong>转录调控 (AT-hook)：</strong> SETBP1 通过其 AT-hook 结构域直接结合富含 AT 的 DNA 区域，激活特定基因（如 <em>[[HOXA9]]</em>, <em>[[MECOM]]</em>）的表达，进一步阻止细胞分化并促进自我更新。</li><br />
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<h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">临床景观：从严重畸形到恶性血液病</h2><br />
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SETBP1 的变异类型（生殖系 vs 体细胞，GoF vs LoF）决定了截然不同的临床表型。<br />
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<th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 25%;">疾病类型</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #475569;">变异特征</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af;">临床特征</th><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[Schinzel-Giedion综合征]] (SGS)</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">生殖系 <em>de novo</em> 热点突变 (GoF)</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">一种极其严重的先天性畸形综合征。特征包括面部畸形（中面部回缩）、严重的智力障碍、癫痫、多毛症以及增加的神经上皮肿瘤风险。突变集中在 868-871 位点，导致蛋白稳定化。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[非典型慢性髓系白血病]] (aCML)</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">体细胞热点突变</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">约 25-30% 的 aCML 患者携带 SETBP1 突变。这被认为是<strong>不良预后</strong>的标志，与白细胞增多、疾病快速进展和对常规治疗反应差相关。突变位点与 SGS 惊人一致。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[幼年型粒单核细胞白血病]] (JMML)</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">体细胞突变</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">在部分 JMML 患者（特别是 RAS 通路突变阴性或继发性病例）中发现，提示疾病向更具侵袭性的阶段转化。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">SETBP1 单倍剂量不足 (SETBP1-HD)</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">缺失或截短突变 (LoF)</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">表现为轻至中度的智力障碍、主要语言发育迟缓（Expressive language delay）和自闭症特征，但<strong>没有</strong> SGS 那样严重的器官畸形或肿瘤风险。这强调了蛋白水平过高（SGS）与过低（HD）的截然不同后果。</td><br />
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<h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">治疗策略：重构磷酸酶活性</h2><br />
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针对 SETBP1 驱动的恶性肿瘤，治疗的核心在于打破 SETBP1-SET 复合物或恢复 PP2A 的抑癌功能。<br />
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<li style="margin-bottom: 12px;"><strong>PP2A 激活剂 (PADs)：</strong><br />
<br><strong>[[FTY720]]</strong> (Fingolimod) 和 OP449。<br />
<br><span style="font-size: 0.9em; color: #64748b;">*机制：这些药物并不直接结合 SETBP1，而是结合其下游伙伴 SET，或者通过别构调节恢复 PP2A 的磷酸酶活性。在 SETBP1 突变的白血病模型中，FTY720 显示出显著的抗增殖效果。</span><br />
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<li style="margin-bottom: 12px;"><strong>下游通路抑制剂：</strong><br />
<br>由于 SETBP1 突变最终导致 MEK/ERK 和 PI3K/AKT 通路的过度活化，<strong>[[MEK抑制剂]]</strong>（如 [[Trametinib]]）和 PI3K 抑制剂在携带 SETBP1 突变的髓系肿瘤中显示出潜在疗效。</li><br />
<li style="margin-bottom: 12px;"><strong>表观遗传疗法：</strong><br />
<br>SETBP1 还招募组蛋白修饰因子（如 HDACs）。HDAC 抑制剂（如 Panobinostat）可能干扰 SETBP1 的转录调控网络。</li><br />
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<h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">关键关联概念</h2><br />
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<li style="margin-bottom: 12px;"><strong>[[PP2A]]：</strong> 关键的肿瘤抑制磷酸酶，SETBP1 突变的主要受害者。</li><br />
<li style="margin-bottom: 12px;"><strong>[[Schinzel-Giedion综合征]]：</strong> SETBP1 胚系突变导致的原型疾病。</li><br />
<li style="margin-bottom: 12px;"><strong>Degron (降解子)：</strong> SETBP1 突变破坏的关键序列，导致蛋白“永生化”。</li><br />
<li style="margin-bottom: 12px;"><strong>[[aCML]]：</strong> SETBP1 突变高发的难治性白血病。</li><br />
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<span style="color: #0f172a; font-weight: bold; font-size: 1.05em; display: inline-block; margin-bottom: 15px;">学术参考文献与权威点评</span><br />
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[1] <strong>Hoischen A, et al. (2010).</strong> <em>De novo mutations of SETBP1 cause Schinzel-Giedion syndrome.</em> <strong>[[Nature Genetics]]</strong>. <br><br />
<span style="color: #475569;">[学术点评]：开创性发现。利用外显子组测序首次鉴定了 SGS 的致病基因为 SETBP1 的新生突变，并指出了突变的热点性质。</span><br />
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[2] <strong>Piazza R, et al. (2013).</strong> <em>Recurrent SETBP1 mutations in atypical chronic myeloid leukemia.</em> <strong>[[Nature Genetics]]</strong>. <br><br />
<span style="color: #475569;">[学术点评]：肿瘤学突破。在约 25% 的 aCML 患者中发现了 SETBP1 体细胞突变，且突变位点与 SGS 完全一致，揭示了同一基因在发育和肿瘤中的多效性。</span><br />
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[3] <strong>Makishima H, et al. (2013).</strong> <em>Somatic SETBP1 mutations in myeloid malignancies.</em> <strong>[[Nature Genetics]]</strong>. <br><br />
<span style="color: #475569;">[学术点评]：泛癌种分析。证实 SETBP1 突变广泛存在于多种髓系肿瘤（JMML, MDS/MPN, sAML）中，且与不良细胞遗传学异常及预后差显著相关。</span><br />
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[4] <strong>Cristóbal I, et al. (2010).</strong> <em>SETBP1 overexpression is a novel leukemogenic mechanism that predicts adverse outcome in elderly patients with acute myeloid leukemia.</em> <strong>[[Blood]]</strong>. <br><br />
<span style="color: #475569;">[学术点评]：机制阐释。不仅关注突变，还发现 SETBP1 的过表达本身就是 AML 的不良预后因子，并详细解析了其通过 SET 抑制 PP2A 的分子机制。</span><br />
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[5] <strong>Nguyen, N., et al. (2021).</strong> <em>SETBP1 mutations in interaction with other genetic alterations in myeloid neoplasms.</em> <strong>[[Cancers]]</strong>. <br><br />
<span style="color: #475569;">[学术点评]：综述与协同。探讨了 SETBP1 突变常与 [[ASXL1]]、[[CBL]] 等基因突变共存的现象，揭示了髓系肿瘤演进中的克隆合作机制。</span><br />
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<div style="background-color: #0f172a; color: #ffffff; text-align: center; font-weight: bold; padding: 10px; letter-spacing: 1px;">SETBP1 · 知识图谱关联</div><br />
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[[aCML]] • [[Schinzel-Giedion综合征]] • [[PP2A]] • [[SET蛋白]] • [[JMML]] • [[Degron]] • [[FTY720]] • [[HOXA9]]<br />
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