在 CRPC 进展过程中,ADT 对 B7-H3 表达的影响从先前未经过激素治疗的前列腺癌进展
Ning Kang1, Hui Xue1, Yen-Yi Lin2
1Department of Experimental Therapeutics, BC Cancer, Vancouver, BC, Canada.
Cancer gene therapy
|July 14, 2023
概括
前列腺癌 (PCa) 的雄激素剥夺疗法 (ADT) 可以导致耐药性. 这项研究揭示了ADT期间的B7-H3表达变化,表明它是生物标志物和潜在的免疫治疗点,以防止割抵抗性前列腺癌 (CRPC) 复发.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 分子生物学分子生物学
背景情况:
- 抗雄激素剥夺疗法 (ADT) 是晚期前列腺癌 (PCa) 的标准,但往往导致致命的抗割前列腺癌 (CRPC).
- B7-H3 (CD276) 是PCa中潜在的免疫疗法点,与雄激素受体 (AR) 调节有推但有争议的联系.
- 在ADT和CRPC进展过程中B7-H3的表达动态在很大程度上是未知的,这阻碍了最佳的免疫治疗时间.
研究的目的:
- 为了调查前列腺癌 (PCa) 中B7-H3的纵向表达模式,在安卓基因剥夺疗法 (ADT) 之后.
- 为了澄清B7-H3和雄激素受体 (AR) 在疾病进展过程中的关系.
- 在PCa中评估B7-H3作为诊断,预后和治疗反应的生物标志物.
主要方法:
- 使用患者衍生异种移植 (PDX) 模型的前列腺癌 (PCa) 纵向研究.
- 在雄激素剥夺疗法 (ADT) 后,在疾病进展期间评估B7-H3表达.
- 在人类PCa患者样本中发现的临床验证.
主要成果:
- 在ADT治疗的早期,B7-H3表达被雄激素受体 (AR) 负面调节.
- 在疾病进展的后期阶段,B7-H3表达与前列腺癌 (PCa) 扩散有积极的关联.
- 在PCa患者中,B7-H3表达模式的临床相关性已被证明.
结论:
- B7-H3 作为前列腺癌 (PCa) 诊断,预后和对雄激素剥夺疗法 (ADT) 的反应的潜在生物标志物.
- 将ADT与针对B7-H3的免疫疗法相结合,可以预防前激素素原始患者的割耐性前列腺癌 (CRPC) 复发.
- 了解B7-H3动态对于优化晚期前列腺癌 (PCa) 免疫治疗策略至关重要.
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