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TFF3 - 版本历史
2026-04-07T00:26:07Z
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2026年3月24日 (二) 02:33 223.160.139.103
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<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><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2"> </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><del style="font-weight: bold; text-decoration: none;">Would you like me to generate a similar entry for **[[TFF1]]** or **[[Mucin-2]] (MUC2)** to explore the gastrointestinal protective complex?</del></div></td><td colspan="2"> </td></tr>
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223.160.139.103
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2026-03-24T02:28:55Z
<p>建立内容为“<div style="padding: 0 4%; line-height: 1.8; color: #1e293b; font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', Arial, sans-serif; background-color: #ffffff…”的新页面</p>
<p><b>新页面</b></p><div><div style="padding: 0 4%; line-height: 1.8; color: #1e293b; font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', Arial, sans-serif; background-color: #ffffff; max-width: 1200px; margin: auto;"><br />
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<strong>[[TFF3]]</strong>（Trefoil Factor 3），又称肠三叶因子（ITF），是三叶因子家族（TFF）成员之一。它主要由胃肠道的黏膜杯状细胞分泌，是一种富含半胱氨酸的低分子量分泌型蛋白质。TFF3在<strong>[[黏膜修复]]</strong>、细胞迁移和抗凋亡过程中发挥核心作用。在肿瘤生物学中，TFF3被广泛认为是一种促癌因子，在多种实体瘤（如乳腺癌、结直肠癌、前列腺癌等）中高表达，通过诱导<strong>[[上皮-间充质转化]]([[EMT]])</strong>及激活促生存通路，显著增强肿瘤细胞的侵袭性、转移潜力及化疗耐药性。<br />
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<div style="font-size: 1.2em; font-weight: bold; letter-spacing: 1.2px;">TFF3 (ITF)</div><br />
<div style="font-size: 0.7em; opacity: 0.85; margin-top: 4px; white-space: nowrap;">Trefoil Factor 3 · 核心参数</div><br />
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<div style="width: 140px; height: 90px; background-color: #f1f5f9; display: flex; align-items: center; justify-content: center; color: #94a3b8; font-size: 0.8em; padding: 10px; text-align: center; border-radius: 8px;">TFF3 Structure:<br>Triple-Loop Trefoil Domain</div><br />
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<div style="font-size: 0.8em; color: #64748b; margin-top: 12px; font-weight: 600;">染色体定位：21q22.3</div><br />
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<th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0; width: 45%;">[[Entrez]] ID</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">7033</td><br />
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<th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">[[HGNC]] 符号</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">TFF3</td><br />
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<th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">[[UniProt]]</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">P81674</td><br />
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<th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">分子量</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">~7 kDa (成熟肽)</td><br />
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<th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">表达部位</th><br />
<td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">杯状细胞、分泌黏膜</td><br />
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<th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569;">功能分类</th><br />
<td style="padding: 8px 12px; color: #1e40af; font-weight: bold;">细胞保护/促生存因子</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：多效性的促生存信号</h2><br />
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TFF3通过旁分泌或自分泌方式作用于受体，其稳定的“三叶”结构（含3个二硫键形成的环状结构）使其在极端的胃肠道酸性环境中仍能保持活性。主要机制包括：<br />
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<li style="margin-bottom: 12px;"><strong>促进黏膜重建：</strong> TFF3在损伤部位通过加速上皮细胞的<strong>[[还原迁移]]（Restitution）</strong>来覆盖损伤区域，此过程独立于细胞增殖，是黏膜早期修复的关键。</li><br />
<li style="margin-bottom: 12px;"><strong>激活生存通路：</strong> 尽管其特异性受体尚有争议，但研究证实TFF3能反式激活<strong>[[EGFR]]</strong>，进而触发<strong>[[PI3K/AKT]]</strong>和<strong>[[MAPK/ERK]]</strong>信号通路，抑制促凋亡蛋白Bax，增强抗凋亡蛋白Bcl-2的表达。</li><br />
<li style="margin-bottom: 12px;"><strong>诱导EMT与耐药：</strong> 在癌症中，TFF3表达上调会抑制E-cadherin，增加Vimentin表达，促进肿瘤细胞的<strong>[[上皮-间充质转化]]</strong>。此外，它还能通过降低DNA损伤药物诱导的细胞凋亡导致对[[他莫昔芬]]或化疗药物的耐药。</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;">TFF3 在临床疾病中的作用</h2><br />
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<th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 25%;">疾病领域</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #475569;">生物学效应 / 临床表现</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af;">临床价值评估</th><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[乳腺癌]]</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">常在ER+乳腺癌中与雌激素通路共同高表达。</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">作为内分泌耐药的预测指标及辅助诊断标志物。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[结直肠癌]]</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">通过增强癌细胞侵袭性促进血管生成与淋巴转移。</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">高表达预示较差的PFS及整体生存期（OS）。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[炎症性肠病(IBD)]]</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">溃疡性结肠炎急性期表达显著下调。</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">监测黏膜屏障完整性的分子指标，潜在治疗靶点。</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;">诊疗策略与转化应用</h2><br />
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基于TFF3的独特性质，其临床转化应用主要集中在以下方向：<br />
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<li style="margin-bottom: 12px;"><strong>液体活检标志物：</strong> 由于TFF3是分泌型蛋白，血清或唾液中的TFF3水平已被探索用于辅助诊断及监测治疗反应。</li><br />
<li style="margin-bottom: 12px;"><strong>针对性抑制探索：</strong> 目前尚无获批的TFF3抑制剂，但研究集中于开发单克隆抗体或小分子拮抗剂，旨在通过阻断TFF3介导的促生存信号通路，逆转肿瘤细胞的耐药性。</li><br />
<li style="margin-bottom: 12px;"><strong>黏膜修复促进剂：</strong> 在非肿瘤领域（如溃疡防治），重组TFF3蛋白或其类似物作为促进黏膜愈合的潜在外用药物处于研究阶段。</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;">关键相关概念</h2><br />
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<ul style="margin: 0; padding-left: 20px; color: #334155; columns: 2;"><br />
<li style="margin-bottom: 8px;">[[TFF1]] (pS2)</li><br />
<li style="margin-bottom: 8px;">[[杯状细胞]] (Goblet Cell)</li><br />
<li style="margin-bottom: 8px;">[[黏膜屏障]]</li><br />
<li style="margin-bottom: 8px;">[[上皮-间充质转化(EMT)]]</li><br />
<li style="margin-bottom: 8px;">[[内分泌耐药]]</li><br />
<li style="margin-bottom: 8px;">[[EGFR反式激活]]</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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<p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"><br />
[1] <strong>Perry JK, et al. (2010).</strong> <em>Trefoil factor 3: a novel target to overcome chemoresistance.</em> <strong>[[Expert Opinion on Therapeutic Targets]]</strong>.<br><br />
<span style="color: #475569;">[学术点评]：该研究深入分析了TFF3在抗凋亡机制中的作用，强调了其作为克服肿瘤耐药靶点的重要潜力。</span><br />
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[2] <strong>Taupin D, Podolsky DK. (2003).</strong> <em>Trefoil factors: initiators of mucosal healing.</em> <strong>[[Nature Reviews Molecular Cell Biology]]</strong>. [Academic Review]<br><br />
<span style="color: #475569;">[学术点评]：本文作为三叶因子领域的经典综述，系统性地阐述了TFF3在肠道健康及黏膜修复中的生理学地位。</span><br />
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TFF3 生物医学诊疗生态 · 知识图谱<br />
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<td style="width: 90px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">分子家族</td><br />
<td style="padding: 10px 15px; color: #334155;">[[TFF1]]•[[TFF2]]•[[Trefoil Domain]]•[[Mucin复合物]]</td><br />
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<td style="width: 90px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">下游效应</td><br />
<td style="padding: 10px 15px; color: #334155;">[[EGFR激活]]•[[AKT磷酸化]]•[[Bcl-2上调]]•[[E-cadherin下调]]</td><br />
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<td style="width: 90px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">相关病理</td><br />
<td style="padding: 10px 15px; color: #334155;">[[肠化生]]•[[乳腺癌内分泌耐药]]•[[胃溃疡]]•[[结直肠癌转移]]</td><br />
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<td style="width: 90px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">研究前沿</td><br />
<td style="padding: 10px 15px; color: #334155;">[[TFF3单抗抑制剂]]•[[血清早期诊断面板]]•[[PROTAC降解策略]]•[[外源性黏膜保护剂]]</td><br />
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</table><br />
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Would you like me to generate a similar entry for **[[TFF1]]** or **[[Mucin-2]] (MUC2)** to explore the gastrointestinal protective complex?</div>
223.160.139.103