已知表观遗传过程，例如DNA甲基化调控组织特异基因表达。
Epigenetic processes, such as DNA methylation, are known to regulate tissue specific gene expression.
目的探讨直肠癌组织中脑特异性血管生长抑制因子1 (BAI1)基因的表达情况及BAI1对肿瘤血管生成和肿瘤生长的作用。
Objective to explore the expression of brain-specific angiogenesis inhibitor 1 (BAI1) gene in rectal cancer tissues and its effect on growth and angiogenesis of the tumor.
ID 4基因的表达具有组织特异性。
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