棕化改变了LDHA活性和胰腺癌对化疗的反应
Luojun Chen1, Xiaoke Xing1, Yue Zhu2
1Cancer Center, Renmin Hospital of Wuhan University, Wuhan, 430062, Hubei, China.
Cancer letters
|February 8, 2024
概括
ZDHHC9棕酸盐酸乳酸脱酶A (LDHA),增强其活性,促进胰腺癌的生长. 抑制这一过程可能为癌症治疗提供新的治疗策略.
科学领域:
- 生物化学 生物化学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 乳酸脱酶A (LDHA) 通过将酸盐转化为乳酸盐来驱动癌症中的华堡效应.
- 虽然LDHA在癌症中被上调,但控制其活性的机制尚未完全理解.
研究的目的:
- 研究调节癌症中的LDHA活性的翻译后修饰.
- 阐明ZDHHC9-介导棕化在胰腺癌进展和化疗反应中的作用.
主要方法:
- 通过使用ZDHHC9.9对氨酸163进行LDHA棕化.
- 利用一种棕化缺陷的LDHA突变物来评估其对癌细胞增殖,瘤生长和免疫细胞透的影响.
- 在耐凝素的胰腺癌细胞中分析了LDHA棕化水平,并将ZDHHC9表达与患者预后相关联.
主要成果:
- LDHA是由ZDHHC9在163氨酸中棕化,增强其酶活性,乳酸生产,并减少活性氧物种 (ROS).
- 一种棕化缺陷的LDHA突变减少了胰腺癌细胞的增殖,增加了T细胞的透,并限制了瘤的生长.
- 在耐吉他的细胞中,LDHA棕化升高,而ZDHHC9在胰腺癌中升高,与患者的不良结果相关.
结论:
- 通过ZDHHC9介导的LDHA棕化是促进癌症进展的关键机制.
- 向LDHA棕化是一种潜在的胰腺癌治疗策略.
- 这一发现对理解癌症代谢和开发新的胰腺癌疗法具有重大意义.
关键词:
杰姆西塔宾 (Gemcitabine) 是一种药物.LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA LDHA 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是棕甲基基化是棕甲基化的一种.胰腺癌是一种胰腺癌.在 ZDHHC9 的情况下.相关概念视频
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