Nat Gene:染色质重塑异常可能导致膀胱癌

2011-11-28 MedSci原创 MedSci原创

 日前,由北京大学深圳医院和华大基因研究院共同完成的一项研究发现,染色质重塑异常可能是导致膀胱癌发生的一个重要原因,这为膀胱癌的诊断、治疗奠定了遗传学基础。该研究成果近日发表于《自然·遗传学》杂志。   膀胱癌是常见的肿瘤,每年全世界约有15万人死于膀胱癌。膀胱移行细胞癌(TCC)是膀胱癌中最常见的类型,男性发病率约为女性的3~4倍,多发生于 40~70岁之间。膀胱癌在中国的发病率和死亡率均占泌

 日前,由北京大学深圳医院和华大基因研究院共同完成的一项研究发现,染色质重塑异常可能是导致膀胱癌发生的一个重要原因,这为膀胱癌的诊断、治疗奠定了遗传学基础。该研究成果近日发表于《自然·遗传学》杂志。

  膀胱癌是常见的肿瘤,每年全世界约有15万人死于膀胱癌。膀胱移行细胞癌(TCC)是膀胱癌中最常见的类型,男性发病率约为女性的3~4倍,多发生于 40~70岁之间。膀胱癌在中国的发病率和死亡率均占泌尿系肿瘤的首位,目前中国男性膀胱癌的年发病率已达8/10万,并呈逐年上升的趋势。

  据了解,北京大学深圳医院和华大基因研究院研究人员对9例膀胱移行细胞癌患者样本进行了基因组学分析和测序,结果发现54个与膀胱移行细胞癌发生相关的显著突变基因,其中有8个与染色质重塑相关的突变基因,7个突变基因是首次在膀胱移行细胞癌中被发现。这一结果在88例膀胱移行细胞癌患者样本中得到验证。在97例膀胱移行细胞癌患者样本中,有59%的患者的染色质重塑相关基因发生了体细胞突变,由此研究人员推测染色质重塑异常可能是导致膀胱移行细胞癌发生及发展的重要机制之一。

  研究人员介绍说,这一研究发现,为膀胱癌肿瘤治疗提供了新的分子靶点和治疗思路。

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    2012-06-20 liye789132251
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    2012-01-05 cy0324
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