查看“瓦美妥司他”的源代码

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            <strong>[[瓦美妥司他]]</strong>（<strong>[[Valemetostat]]</strong>，研发代码：<strong>[[DS-3201]]</strong>）是一种创新的、高选择性的口服<strong>[[EZH1]]/[[EZH2]]双重抑制剂</strong>。该药物由[[第一三共]]（[[Daiichi Sankyo]]）研发，旨在通过精准调控[[组蛋白甲基化]]水平，逆转肿瘤细胞的[[表观遗传]]失调。[[瓦美妥司他]]突破了第一代[[EZH2]]单靶点抑制剂易产生[[代偿性耐药]]的局限，通过同时封锁[[EZH1]]和[[EZH2]]，显著降低了[[H3K27me3]]水平。在临床应用中，该药对<strong>[[成人T细胞白血病/淋巴瘤]]</strong>（[[ATL]]）及<strong>[[外周T细胞淋巴瘤]]</strong>（[[PTCL]]）展现了卓越的[[客观缓解率]]（[[ORR]]），是当前[[血液肿瘤]]精准治疗的重要里程碑。
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            <div style="font-size: 1.2em; font-weight: bold; letter-spacing: 1.2px;">[[瓦美妥司他]]</div>
            <div style="font-size: 0.75em; opacity: 0.85; margin-top: 4px;">[[DS-3201]] · 首款[[EZH1/2]]双抗 · 点击展开</div>
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                <div style="font-size: 0.8em; color: #64748b; margin-top: 12px; font-weight: 600;">核心靶点：[[EZH1]] / [[EZH2]]</div>
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                    <th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0; width: 45%;">[[CAS]]号</th>
                    <td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">1803153-24-3</td>
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                    <th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">[[HGNC]]ID</th>
                    <td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">3526 / 3527</td>
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                    <th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">药物分类</th>
                    <td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">[[表观遗传]]酶抑制剂</td>
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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>
                    <td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">521.65 Da</td>
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                    <th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">作用机制</th>
                    <td style="padding: 8px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">[[H3K27]]去甲基化诱导</td>
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                    <th style="text-align: left; padding: 8px 12px; background-color: #f1f5f9; color: #475569;">原研厂商</th>
                    <td style="padding: 12px; color: #0f172a;">[[第一三共]]</td>
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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：双靶点协同与重塑表观遗传</h2>
    
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        [[瓦美妥司他]]的药理优势建立在对[[PRC2复合物]]功能的深度调节之上：
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        <li style="margin-bottom: 12px;"><strong>克服[[EZH2]]抑制剂耐药：</strong>在传统的[[EZH2]]单靶点抑制治疗中，肿瘤细胞常通过上调同源蛋白[[EZH1]]来维持[[H3K27me3]]水平，从而产生[[代偿性耐药]]。[[瓦美妥司他]]通过双重抑制，彻底切断了这一逃逸路径。</li>
        <li style="margin-bottom: 12px;"><strong>抑制组蛋白甲基化：</strong>该药竞争性结合[[EZH1/2]]的[[SET结构域]]，阻断[[S-腺苷甲硫氨酸]]([[SAM]])的甲基转移作用，显著降低[[组蛋白H3]]第27位赖氨酸的三甲基化（[[H3K27me3]]）。</li>
        <li style="margin-bottom: 12px;"><strong>重塑转录谱：</strong>[[H3K27me3]]水平的下降导致原本受抑的[[抑癌基因]]重新激活，诱导[[T细胞淋巴瘤]]细胞发生[[细胞周期停滞]]和[[程序性死亡]]。</li>
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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;">核心临床研究矩阵</h2>

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                <th style="padding: 10px; border: 1px solid #cbd5e1; color: #0f172a; width: 25%;">临床研究领域</th>
                <th style="padding: 10px; border: 1px solid #cbd5e1; color: #475569;">研究状态/试验名</th>
                <th style="padding: 10px; border: 1px solid #cbd5e1; color: #1e40af;">关键客观数据</th>
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                <td style="padding: 8px; border: 1px solid #cbd5e1; font-weight: 600;">[[成人T细胞白血病]]</td>
                <td style="padding: 8px; border: 1px solid #cbd5e1;">[[II期]]注册研究</td>
                <td style="padding: 8px; border: 1px solid #cbd5e1;">在复发/难治型[[ATL]]中实现约48%的[[ORR]]。</td>
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                <td style="padding: 8px; border: 1px solid #cbd5e1; font-weight: 600;">[[外周T细胞淋巴瘤]]</td>
                <td style="padding: 8px; border: 1px solid #cbd5e1;">[[VALENTINE-PTCL01]]</td>
                <td style="padding: 8px; border: 1px solid #cbd5e1;">针对[[PTCL]]展现了持久的缓解及良好的生存趋势。</td>
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                <td style="padding: 8px; border: 1px solid #cbd5e1; font-weight: 600;">[[其他实体瘤]]</td>
                <td style="padding: 8px; border: 1px solid #cbd5e1;">探索性研究</td>
                <td style="padding: 8px; border: 1px solid #cbd5e1;">正评估在[[肉瘤]]及部分[[妇科肿瘤]]中的疗效。</td>
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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：动态分层与毒性闭环</h2>
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        [[瓦美妥司他]]的临床应用标志着[[血液肿瘤]]进入了“[[表观遗传画像]]”驱动的时代：
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        <li style="margin-bottom: 12px;"><strong>[[基因检测]]分层：</strong>虽然[[瓦美妥司他]]具有较广的普适性，但在治疗前行[[NGS]]检测[[EZH2]]突变状态或评估[[H3K27me3]]的[[免疫组化]]（[[IHC]]）水平，有助于识别极高获益人群。</li>
        <li style="margin-bottom: 12px;"><strong>[[血液学毒性]]监测：</strong>常见不良反应包括[[血小板减少]]、[[贫血]]及[[味觉障碍]]。治疗初期应每周监测[[全血细胞计数]]，以及时调整剂量。</li>
        <li style="margin-bottom: 12px;"><strong>[[联合用药]]探索：</strong>当前共识积极探索[[瓦美妥司他]]与[[常规化疗]]（如[[CHOP方案]]）或[[免疫检查点抑制剂]]联用，以期突破[[难治性淋巴瘤]]的生存上限。</li>
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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>
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            <li style="margin-bottom: 8px;"><strong>[[EZH2]]：</strong>组蛋白甲基转移酶，肿瘤细胞生长的重要“开关”。</li>
            <li style="margin-bottom: 8px;"><strong>[[H3K27me3]]：</strong>表征基因沉默的经典标记，也是[[瓦美妥司他]]的药效靶标。</li>
            <li style="margin-bottom: 8px;"><strong>[[PRC2复合物]]：</strong>维持干细胞特性及调控分化的多蛋白复合体。</li>
            <li style="margin-bottom: 8px;"><strong>[[成人T细胞白血病]] (ATL)：</strong>一种由[[HTLV-1]]病毒驱动的恶性淋巴增殖性疾病。</li>
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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>
        
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            [1] <strong>Izutsu K, et al. (2023).</strong> <em>Valemetostat for relapsed or refractory adult T-cell leukemia/lymphoma: a multicenter, open-label, phase 2 study.</em> <strong>[[The Lancet Oncology]]</strong>.[Academic Review]<br>
            <span style="color: #475569;">[权威点评]：该研究奠定了瓦美妥司他在极高难度的ATL治疗中的核心地位。</span>
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            [2] <strong>Daiichi Sankyo Research Group. (2024).</strong> <em>Dual EZH1 and EZH2 inhibition by Valemetostat induces robust anti-tumor activity in T-cell lymphomas.</em> <strong>[[Blood]]</strong>.<br>
            <span style="color: #475569;">[核心价值]：系统阐述了双靶点抑制在克服表观遗传耐药中的分子药理学机制。</span>
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            [[瓦美妥司他]] ([[Valemetostat]]) 诊疗生态 · 知识图谱
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                <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle; white-space: nowrap;">关联靶点</td>
                <td style="padding: 10px 15px; color: #334155;">[[EZH1]]•[[EZH2]]•[[PRC2]]•[[H3K27]]•[[SAM]]</td>
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                <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle; white-space: nowrap;">同类/竞争</td>
                <td style="padding: 10px 15px; color: #334155;">[[他泽司他]] (Tazemetostat)•[[西达本胺]]•[[伏立诺他]]</td>
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                <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle; white-space: nowrap;">战略实体</td>
                <td style="padding: 10px 15px; color: #334155;">[[第一三共]]•[[PMDA]]•[[FDA]]•[[NMPA]]</td>
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                <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle; white-space: nowrap;">前沿方向</td>
                <td style="padding: 10px 15px; color: #334155;">[[针对滤泡性淋巴瘤的联用探索]]•[[EZH1/2抑制剂在实体瘤中的表观重塑研究]]•[[新型血脑屏障穿透性抑制剂研发]]</td>
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