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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >C~mC(A/T)GG DNA methylation in mature B cell lymphoma gene silencing
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C~mC(A/T)GG DNA methylation in mature B cell lymphoma gene silencing

机译:C〜mC(A / T)GG DNA甲基化与成熟B细胞淋巴瘤基因沉默

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摘要

DNA methylation has been linked to gene silencing in cancer. Primary effusion lymphoma (PEL) and myeloma are lymphoid malignancies that arise from terminally differentiated B cells. Interestingly, PEL do not express immunoglobulins or most B lineage-specific genes. The B cell-specific B29 (Igβ/CD79b) gene is silenced in PEL and some myelomas but is expressed in other normal and malignant B cells. B29 expression was reactivated in PEL by demethylating and histone deacetylase inhibiting treat- ments. Bisulfite sequencing revealed two types of DNA meth- ylation in silenced B29 promoters: at conventional CpG and at CC(A/T)GG B29 promoter sites.
机译:DNA甲基化与癌症中的基因沉默有关。原发性积液性淋巴瘤(PEL)和骨髓瘤是由终末分化B细胞引起的淋巴样恶性肿瘤。有趣的是,PEL不表达免疫球蛋白或大多数B谱系特异性基因。 B细胞特异性B29(Igβ/ CD79b)基因在PEL和一些骨髓瘤中沉默,但在其他正常和恶性B细胞中表达。通过去甲基化和抑制组蛋白脱乙酰基酶处理,P29中的B29表达被重新激活。亚硫酸氢盐测序揭示了沉默的B29启动子中两种类型的DNA甲基化:在常规CpG和CC(A / T)GG B29启动子位点。

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