分裂的PCDH9的核转位通过降低CDH2表达的调节,损害胃癌转移
Yajuan Zhang1,2, Yingwei Zhu3, Ying Chen4
1Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
iScience
|February 15, 2024
概括
丢失Protocadherin 9 (PCDH9) 通过增加Cadherin 2 (CDH2) 的DNA甲基化,损害胃癌转移. 核PCDH9与DNMT1相互作用,降低CDH2的调节,影响患者的预后.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 失去Protocadherin 9 (PCDH9) 与胃癌转移和预后不佳有关.
- PCDH9在胃癌转移中的作用背后的精确分子机制尚未完全理解.
研究的目的:
- 阐明Protocadherin 9 (PCDH9) 影响胃癌转移的分子机制.
- 在胃癌细胞中研究PCDH9和DNA甲基转移酶1 (DNMT1) 之间的相互作用.
主要方法:
- 在胃癌细胞中研究了PCDH9裂变和核转位.
- 研究了细胞内PCDH9与DNA甲基转移酶1 (DNMT1) 的相互作用.
- 评估PCDH9-DNMT1相互作用对CADHERIN 2 (CDH2) 促进物甲基化和表达的影响,并评估胃癌细胞迁移和转移.
主要成果:
- PCDH9在胃癌细胞中被分裂,其细胞内域转移到细胞核.
- 核PCDH9增强了DNMT1的活动,导致CDH2促进体的DNA甲基化增加.
- 通过PCDH9-激活的DNMT1降低CDH2表达,抑制胃癌细胞迁移和体内转移.
- 核PCDH9水平与CDH2表达,淋巴结转移和患者预后相关.
结论:
- 证明了一种新的机制,其中核PCDH9通过DNMT1激活通过表观遗传沉默CDH2促进胃癌转移.
- 强调核PCDH9在调节CDH2表达中的重要性及其对胃癌进展和患者结局的影响.
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