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Updated: Feb 14, 2026

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由癌症相关纤维细胞诱导的GAL3ST1介导的氨酸硫化促进了胃癌转移
Yifan Lu1, Xiongyan Wu1, Baolong Li1
1Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China.
Cancer research
|February 13, 2026
概括
这项研究揭示了与癌症相关的纤维细胞如何促进胃癌 (GC) 转移. 一个关键的酶,GAL3ST1,修改了组织蛋白,激活了驱动瘤扩散和上皮细胞-介质细胞过渡 (EMT) 的基因.
科学领域:
- 在瘤学瘤学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- 胃癌 (GC) 转移是由瘤细胞和树皮微环境之间的复杂相互作用驱动的.
- 癌症相关纤维细胞 (CAFs) 是促进GC细胞入侵和转移的关键参与者.
研究的目的:
- 阐明GC细胞-CAF相互作用的分子机制.
- 为了确定阻断GC转移的潜在治疗点.
主要方法:
- 对GC细胞-CAF通信进行转录形状分析.
- 研究了银河糖-3-O-硫酸转移酶1 (GAL3ST1) 在GC转移中的作用.
- 分析了基因素修饰和基因转录途径.
主要成果:
- GAL3ST1被确定为CAF诱导的GC细胞转移潜力的关键调节者.
- 在氨酸99 (H3Y99sulf) 处,GAL3ST1硫酸盐化素H3,通过KAT2A促进核转位和H3K56乙化.
- 这种表观遗传修饰激活了β-catenin转录,驱动了表皮细胞-介质细胞过渡 (EMT).
- 由CAF衍生的SEMA7A信号通过ERK1/2-CEBPB通路在GC细胞中调节GAL3ST1.
结论:
- 在GC转移中,GAL3ST1调解了基因组硫化依赖的表观遗传调节.
- SEMA7A/GAL3ST1/H3Y99硫轴是导致GC转移的瘤-瘤交叉的关键途径.
- 针对这一轴可能会提供新的治疗策略来阻止GC进展.
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