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雄激素调节的肌体补充成分7 (C7) 抑制前列腺癌的生长

Zhicheng Zhou¹, Deyong Jia¹, Ohjoon Kwon¹

¹Department of Urology, University of Washington, Seattle, WA, USA.

|July 3, 2023

概括

前列腺 stromal 细胞中的补充成分 7 (C7) 被雄激素调节,抑制前列腺癌的生长. 增加补充活性可能会对抗割抵抗.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
泌尿器科泌尿器科泌尿器科泌尿器科

背景情况:

补体系统是天生的免疫的一部分,它利用膜攻击复合体 (MAC) 进行细胞分解.
补充成分7 (C7) 对于MAC组合至关重要,其表达对MAC的细胞分解功能至关重要.

研究的目的:

研究C7在前列腺癌中的作用.
探索通过雄激素信号传递对C7的调节.
评估C7在前列腺癌中的治疗潜力.

主要方法:

在小鼠和人类前列腺 stromal 细胞中研究了 C7 表达.
分析了C7水平与前列腺癌的临床结果之间的相关性.
研究了通过雄激素受体信号传递对C7的调节.
评估C7调制对瘤生长的 in vivo 影响,使用异种移植和转基因模型.

主要成果:

C7在前列腺 stromal 细胞中特别表达,其表达与前列腺癌的结果相反相关.
雄激素信号积极调节C7表达,雄激素受体直接控制其转录.
增加C7抑制了异种移植模型中的瘤生长,而C7基不足促进了TRAMP小鼠的生长.
在缺乏雄激素的瘤中恢复C7对亡的影响有限,这表明瘤对抗机制.

结论:

前列腺 stromal 细胞中的 C7 表达是雌激素依赖的,并且与前列腺癌的进展有关.
通过C7调节补充活性代表了对抗割抵抗性前列腺癌的潜在策略.

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