脂肪酸和增强癌症的ZDHHC19通过S-palmitoylation促进STAT3的激活
在PubMed上查看摘要
概括
此摘要是机器生成的。信号转换器和转录3激活器 (STAT3) 通过S-palmitoylation被激活,这是由脂肪酸和ZDHHC19调节的过程. 这一发现将棕化放松与炎症和癌症联系起来.
科学领域
- 生物化学
- 分子生物学
- 细胞生物学
背景情况
- 信号转换器和转录3激活器 (STAT3) 对细胞命运,炎症和免疫是至关重要的.
- 通常通过酶介导的酸化和二分化来激活STAT3.
- 除了酸化之外,调节STAT3激活的机制在很大程度上仍未被探索.
研究的目的
- 研究STAT3激活的新机制.
- 确定调节STAT3活动的因素和途径.
- 探索STAT3功能中翻译后修改的作用.
主要方法
- 在SRC同位素2 (SH2) 域研究了STAT3 S-palmitoylation.
- 确定ZDHHC19是一种调节STAT3的棕酸转移酶.
- 使用基于细胞的测试,患者样本分析和体内小鼠模型.
主要成果
- STAT3经历S- 棕化,促进其二元化和转录激活.
- 脂肪酸增强STAT3的棕化和激活,与细胞因子刺激协同作用.
- 它的放大与STAT3水平和癌症进展有关.
- 在体内,ZDHHC19淘汰抑制了STAT3活性,脂肪酸诱导的瘤球形成和瘤形成.
结论
- S-palmitoylation 是一种新的STAT3激活机制,由脂肪酸和ZDHHC19调节.
- 通过ZDHHC19介导的STAT3棕化在癌症的发展中起着重要作用.
- 这项研究确定了棕化放松调节,炎症和癌症之间的联系,提供了潜在的治疗点.
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