| 染色质重塑因子ARID1A的肿瘤抑制作用 |
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| 引用本文： | 郭晓强,张巧霞,黄卫人,段相林,蔡志明.染色质重塑因子ARID1A的肿瘤抑制作用[J].遗传,2013,35(3):255-261. |
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| 作者姓名： | 郭晓强 张巧霞 黄卫人 段相林 蔡志明 |
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| 作者单位： | 1. 深圳市第二人民医院, 深圳大学第一附属医院, 深圳市泌尿生殖系统肿瘤研究重点实验室, 深圳518035; 2. 河北师范大学生命科学学院, 铁代谢分子生物学研究室, 石家庄 050024; 3. 解放军白求恩军医学院生化教研室, 石家庄 050081 |
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| 基金项目： | 深圳市第二人民医院育苗计划(编号：2012001)和教育部博士点基金项目(编号：20100001110100)资助 |
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| 摘 要： | 哺乳动物SWI/SNF复合物是一种ATP依赖的染色质重塑复合物, 在细胞增殖、分化、发育和肿瘤抑制过程中发挥着重要作用。ARID1A是一种SWI/SNF复合物亚基, 此外还是一种ARID家族成员, 具有非序列特异性DNA结合活性。ARID1A发挥着肿瘤抑制作用, 在多种肿瘤如卵巢癌、膀胱癌和胃癌等存在频繁基因突变。ARID1A可通过上调p21和下调E2F-反应基因表达而抑制细胞增殖。ARID1A与肿瘤抑制作用的发现对癌症发生的理解和癌症新治疗有重要裨益。文章介绍了ARID1A的基本特征、肿瘤发生的关联及生物学作用, 以期对ARID1A有一个全面理解。
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| 关 键 词： | 染色质重塑复合物 ARID1A 肿瘤抑制因子 细胞增殖 |
| 收稿时间： | 2012-08-01 |
Tumor suppressor role of chromatin-remodeling factor ARID1A |
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| Institution: | 1. Shenzhen Key Laboratory of Genitourinary Tumor, Shenzhen Second People’s Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China; 2. Laboratory of Iron Metabolism and Molecular Biology, College of Life Science, Hebei Normal University, Shijiazhuang 050024, China; 3. Department of Biochemistry, Bethune Military Medical College, Shijiazhuang 050081, China |
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| Abstract: | The mammalian SWI/SNF complex is one of ATP-dependent chromatin-remodeling complexes, which plays important roles in cell proliferation, differentiation, development and tumor suppression. ARID1A (AT-rich interactive domain-containing protein 1A) is a large subunit of SWI/SNF complex, and also an ARID family member with non- sequence-specific DNA binding activity. ARID1A is a tumor suppressor gene which is frequently mutated in many cancers, such as ovarian, bladder and gastric cancers. ARID1A can suppress cell proliferation through the up-regulation of p21 and the down-regulation of E2F-responsive genes. These findings on ARID1A and its role of tumor suppression con-tribute to understanding the mechanism of cancer development and developing new therapy for cancer.It is introduced in the review that ARID1A basic characteristic, related to cancer development, and biological role for full understanding of ARID1A |
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| Keywords: | chromatin-remodeling complex ARID1A tumor suppressor cell proliferation |
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