在nNOS/NO和COX-2之间的交叉增强了干扰素-马刺激黑色素瘤的进展
Anika Patel1, Shirley Tong1, Moom R Roosan2
1Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, 9401 Jeronimo Road, Irvine, CA 92618, USA.
Cancers
|February 13, 2025
概括
干扰素玛 (IFN-γ) 通过nNOS-NO和COX-2/PGE2通路之间的反循环促进黑色素瘤. 抑制这些途径,特别是HH044和celecoxib,抑制了瘤生长并提高了疗效.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 干扰素 (IFN-γ) 在黑色素瘤中具有双重作用,促进瘤生长和抗癌免疫力.
- 神经氧化合成酶 (nNOS) 与IFN-γ驱动的黑色素瘤进展有关.
- 在黑色素瘤中,nNOS参与IFN-γ信号的确切机制尚不清楚.
研究的目的:
- 为了研究nNOS/NO和COX-2/PGE2信号通路之间的交叉声.
- 确定这些途径如何增强黑色素瘤中IFN-γ的前瘤效应.
- 评估针对这些途径的治疗策略.
主要方法:
- 对黑色素瘤患者和细胞数据的生物信息和蛋白质组分析.
- 西部斑点,流细胞计和共聚焦显微镜用于蛋白质表达分析.
- 用于PGE2和NO量化的HPLC;用于抗瘤功效的体内外移植小鼠模型.
主要成果:
- 在黑色素瘤中,COX-2诱导强烈预测IFN-γ治疗.
- 通过PGE2,IFN-γ增强了PD-L1和nNOS,增加了NO水平.
- nNOS抑制 (HH044) 和COX-2抑制 (celecoxib) 降低了IFN-γ诱导的PGE2和COX-2.
- 结合赛莱科西布和HH044显示增强细胞毒性和体内瘤生长抑制.
结论:
- 在nNOS介导的NO信号与黑色素瘤中的COX-2/PGE2轴之间存在正反循环.
- 这种循环增强了IFN-γ的亲瘤活性.
- 针对这种交叉通话提供了一种有前途的治疗策略,用于黑色素瘤.
关键词:
这就是Celecoxib.循环氧基因酶-2 (COX-2) 是一种酶.干扰素 - 玛 (IFN-γ) 干扰素黑色素瘤是一种黑色素瘤.nNOS 抑制剂的使用.神经元氧化合成酶 (nNOS) 的作用氧化 (NO) 是一种氧化.编程死亡链条1 (PD-L1) 编程死亡链条1 (PD-L1)质腺素E2 (PGE2) 是一种前列腺素.更多相关视频
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