对TGF-β介导的表型变化对前列腺癌细胞的反应影响
Prerna R Nepali1, Edgar Gonzalez-Kozlova2,3, Maitri Anegondi4
1Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Oncogene
|November 22, 2025
概括
前列腺癌细胞经历了上皮介质转变 (EMT),变得易受阿诺基斯 (细胞死亡) 的影响. 用DZ-50针对这种EMT-anoikis的脆弱性,可以克服致命的前列腺癌的治疗阻力.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 表皮介质转变 (EMT) 通过规避anoikis,促进前列腺癌转移和治疗耐药性.
- 了解TGF-β对EMT-MET (介质细胞上皮转换) 相互转换的调节对于向前列腺癌进展至关重要.
研究的目的:
- 研究TGF-β如何调节EMT-MET表型相互转换以增强前临床前列腺癌模型中的阿诺基斯反应.
- 评估EMT开对治疗抗瘤剂时阿诺基斯脆弱性的影响.
主要方法:
- 利用人类前列腺癌细胞系模型,对TGF-β和抗瘤剂的反应不同.
- 对TGF-β (EMT诱导剂) 和抗瘤剂 (DZ-50和cabazitaxel) 的评估细胞反应.
- 分析了表型变化,阿诺基斯的脆弱性和分子标记物 (pSRC,cofilin).
主要成果:
- 在LNCaPTβRII细胞中TGF-β诱导的EMT和在VCaP细胞中的亡.
- 接受EMT培养的LNCaPTβRII细胞表现出无基因脆弱性,其特征是pSRC和cofilin的下调.
- 在LNCaPTβRII细胞的EMT-anoikis交叉点观察到代谢变化.
- DZ-50在C4-2B TaxR细胞中克服了卡巴西塔克塞尔耐药性,并改善了细胞和耐化的有机体的治疗反应.
结论:
- 为EMT编程的前列腺癌细胞变得易受阿诺基斯介导的细胞死亡的影响.
- 利用EMT-anoikis交叉路口为克服致死性前列腺癌中高素化疗耐药性的潜力提供了机会.
- DZ-50在使前列腺癌细胞对阿诺基斯敏感并克服治疗阻力方面表现出潜力.
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