nykek5i 发表于 2024-6-26 01:07:03

靶向掌控!复旦大学科研团队发掘癌症最新治疗策略


    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="//q6.itc.cn/q_70/images03/20240525/3857d680f7f74ca1ad40d23a824764f4.jpeg" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">作者:Rainbow</p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">导读:</strong><strong style="color: blue;">聚(ADP-核糖)聚合酶<span style="color: black;">控制</span>剂(PARPi)耐药性对卵巢癌(OC)构<span style="color: black;">成为了</span>重大挑战。虽然DOT1L在癌症和化疗耐药中的<span style="color: black;">功效</span>已得到认可,但其在PARPi耐药中的<span style="color: black;">详细</span><span style="color: black;">功效</span>仍不清楚。本<span style="color: black;">科研</span>旨在阐明DOT1L在OC<span style="color: black;">病人</span>PARPi耐药中的分子机制。</strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">5月22日,复旦大学<span style="color: black;">科研</span>团队在期刊《Molecular Cancer》上在线<span style="color: black;">发布</span>题为“PARP1-DOT1L tranion axis drives acquired resistance to PARP inhibitor in ovarian cancer”的<span style="color: black;">科研</span>论文,<span style="color: black;">科研</span>结果<span style="color: black;">显示</span>,<strong style="color: blue;">DOT1L是OC<span style="color: black;">病人</span>的独立预后标志物。PARP1-DOT1L/H3K79me2-PLCG2/ABCB1轴被确定为抗PARPi的<span style="color: black;">重要</span><span style="color: black;">原因</span>。靶向<span style="color: black;">控制</span>DOT1L是一种<span style="color: black;">特别有</span>前景的治疗策略,可<span style="color: black;">加强</span>OC<span style="color: black;">病人</span>的PARPi治疗结果。</strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="//q9.itc.cn/q_70/images03/20240525/1b949bf8d8dd46d0b8f261a5add5d550.jpeg" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">https://molecular-cancer.biomedcentral.com/articles/10.1186/s12943-024-02025-8</p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">科研</span>背景</strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">01</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">卵巢癌(OC)是<span style="color: black;">全世界</span>致死率最高的妇科恶性肿瘤,占女性癌症总数的4%。</strong>晚期OC<span style="color: black;">病人</span>的传统治疗标准是细胞减灭手术,联合铂类和紫杉醇类新辅助或辅助化疗。尽管手术和化疗取得了<span style="color: black;">发展</span>,但晚期OC<span style="color: black;">病人</span>的5年<span style="color: black;">存活</span>率仍为35%-40%,这<span style="color: black;">重点</span>是<span style="color: black;">因为</span>顺铂耐药的发展。</p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">近期</span>,<span style="color: black;">包含</span>奥拉帕尼和尼拉帕尼在内的PARP<span style="color: black;">控制</span>剂(PARPi)已被<span style="color: black;">准许</span>用于一线化疗后晚期卵巢癌的维持治疗。尽管PARPi维持治疗<span style="color: black;">明显</span>延长了卵巢癌<span style="color: black;">病人</span>的<span style="color: black;">没</span><span style="color: black;">发展</span><span style="color: black;">存活</span>期(PFS),但越来越多的<span style="color: black;">病人</span>对PARPi产生原发性或<span style="color: black;">得到</span>性耐药,限制了其<span style="color: black;">长时间</span>疗效。<strong style="color: blue;"><span style="color: black;">因此呢</span>,有必要<span style="color: black;">科研</span>PARPi耐药的机制,<span style="color: black;">发掘</span>PARPi耐药OC的新型联合疗法,以<span style="color: black;">加强</span><span style="color: black;">病人</span><span style="color: black;">存活</span>率。</strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">表观遗传过程<span style="color: black;">能够</span>介导对靶向治疗的耐药性,并<span style="color: black;">表率</span>新的治疗靶点,<span style="color: black;">尤其</span>是在缺乏<span style="color: black;">知道</span>耐药性遗传机制的肿瘤中。<span style="color: black;">因此呢</span>,表观遗传调节因子已<span style="color: black;">作为</span>癌症治疗的潜在靶点,FDA<span style="color: black;">已然</span><span style="color: black;">准许</span>或正在进行<span style="color: black;">有些</span><span style="color: black;">药品</span>临床<span style="color: black;">实验</span>,<span style="color: black;">包含</span>DOT1L/KMT4<span style="color: black;">控制</span>剂。DOT1L是一种非SET结构域甲基转移酶,可催化H3K79甲基化,并参与DNA修复、转录和重组。在白血病和实体瘤中,DOT1L已被证明<span style="color: black;">拥有</span>肿瘤<span style="color: black;">起步</span>子的细胞功能。值得<span style="color: black;">重视</span>的是,DOT1L高表达,在多种癌症的恶性<span style="color: black;">发展</span>中起着至关<span style="color: black;">要紧</span>的<span style="color: black;">功效</span>,<span style="color: black;">包含</span>OC。<strong style="color: blue;"><span style="color: black;">因此呢</span>,DOT1L是一个<span style="color: black;">特别有</span>前景的<span style="color: black;">药品</span>靶点。</strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">科研</span><span style="color: black;">发掘</span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">02</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在<span style="color: black;">日前</span>的<span style="color: black;">科研</span>中,<span style="color: black;">科研</span>人员<span style="color: black;">发掘</span>DOT1L是<span style="color: black;">经过</span>在OC细胞及其OlaR对应物中进行的RNA-seq进行PARPi抗性的最有<span style="color: black;">期盼</span>的候选靶标之一。<span style="color: black;">经过</span>临床病理学和<span style="color: black;">存活</span>分析,以及OC细胞的体外<span style="color: black;">科研</span>,<span style="color: black;">科研</span>人员证明了DOT1L与PARPi耐药性发展的联系,并进一步阐明了PARPi耐药性的潜在分子机制。<span style="color: black;">另外</span>,<span style="color: black;">科研</span>人员<span style="color: black;">科研</span>了PARPi耐药性OC的潜在治疗策略,并证明DOT1L的遗传和药理学<span style="color: black;">控制</span>可用于克服PARPi耐药性。<strong style="color: blue;">这<span style="color: black;">显示</span>DOT1L可能是一种有价值的新型治疗剂,<span style="color: black;">能够</span>对抗PARPi耐药卵巢癌。</strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="//q4.itc.cn/q_70/images03/20240525/8e6c7a0a512c48daa7d075bd5b5e323c.jpeg" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">科研</span>结论</strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">03</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">综上所述,<span style="color: black;">科研</span>结果<span style="color: black;">显示</span>,<strong style="color: blue;">DOT1L是OC<span style="color: black;">病人</span>的独立预后标志物。PARP1-DOT1L/H3K79me2-PLCG2/ABCB1轴被确定为抗PARPi的<span style="color: black;">重要</span><span style="color: black;">原因</span>。靶向<span style="color: black;">控制</span>DOT1L是一种<span style="color: black;">特别有</span>前景的治疗策略,可<span style="color: black;">加强</span>OC<span style="color: black;">病人</span>的PARPi治疗结果。</strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">参考资料:</p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">https://molecular-cancer.biomedcentral.com/articles/10.1186/s12943-024-02025-8</p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">注:本文旨在介绍医学<span style="color: black;">科研</span><span style="color: black;">发展</span>,<span style="color: black;">不可</span><span style="color: black;">做为</span>治疗<span style="color: black;">方法</span>参考。如需<span style="color: black;">得到</span>健康<span style="color: black;">指点</span>,请至正规医院就诊。</p>
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情迷布拉格 发表于 2024-8-19 21:38:10

感谢楼主的分享!我学到了很多。

wrjc1hod 发表于 2024-9-26 10:07:29

回顾过去一年,是艰难的一年;展望未来,是辉煌的一年。

b1gc8v 发表于 2024-10-6 21:24:37

我完全同意你的看法,期待我们能深入探讨这个问题。
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