雄激素受体变体7对治疗敏感性的作用:IGFBP-2和FOXA1的参与
K M Biernacka1, R Barker1, A Sewell2
1Cancer Endocrinology Group, Translational Health Sciences, University of Bristol Southmead Hospital, BS10 5NB, Bristol, UK.
Translational oncology
|June 12, 2023
概括
雄激素受体变体7 (ARV7) 通过增加细胞分裂和降低治疗灵敏度,促进侵袭性前列腺癌 (PCa). ARV7与IGFBP-2和FOXA1相关,这表明它们在PCa进展中的作用.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 前列腺癌 (PCa) 是男性癌症死亡的主要原因.
- 局部PCa是可以治疗的,但许多患者经历了复发和进展到侵袭性疾病.
- 雄激素受体的替代拼接,特别是AR变体7 (ARV7),与PCa进展有关.
研究的目的:
- 调查ARV7在PCa攻击性和耐治疗性中的作用.
- 探索ARV7,细胞增殖和特定蛋白质标记物之间的关系.
主要方法:
- 活力测试用于评估PCa细胞对cabazitaxel和胺胺的敏感性.
- 现场全息成像被用来分析细胞分裂,增殖和运动性.
- 用蛋白质分析和斯皮尔曼等级相关性来检查ARV7,IGFBP-2和FOXA1在体外和体内之间的关联.
主要成果:
- 具有ARV7阳性的PCa细胞对cabazitaxel和胺胺的敏感性降低.
- 表达ARV7的PCa细胞表现出细胞分裂,增殖和运动率的增加.
- 抑制ARV7与胰岛素样生长因子结合蛋白2 (IGFBP-2) 和分叉盒蛋白A1 (FOXA1) 的水平降低有关.
- 在PCa组织样本中观察到ARV7和IGFBP-2或FOXA1之间存在显著的正相关性,但与标准雄激素受体 (AR) 没有相关性.
结论:
- 通过促进增殖和运动性,ARV7有助于产生具有攻击性的PCa表型.
- ARV7与对标准PCa治疗的耐药性有关.
- FOXA1,IGFBP-2和ARV7之间的相互作用可能会推动前列腺癌的进展和攻击性.
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