在多发性髓瘤中,GPER1激活具有抗瘤活性
Maria Eugenia Gallo Cantafio1, Roberta Torcasio1,2, Francesca Scionti3
1Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy.
与G蛋白结合的雌激素受体1 (GPER1) 激活显示出对多发性骨髓瘤 (MM) 的承诺. 像G-1这样的GPER1激动剂减少了MM的生长,克服了耐药性,提供了一个新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 向G蛋白结合雌激素受体1 (GPER1) 是一种潜在的癌症治疗方法,但其在多发性骨髓瘤 (MM) 等血液性恶性瘤中的作用尚不清楚.
- 在MM患者中,GPER1mRNA下调,与生存率较差相关.
研究的目的:
- 研究GPER1激活在多发性骨髓瘤中的治疗潜力.
- 阐明GPER1在MM中的作用的基本机制.
主要方法:
- 在MM患者样本中分析GPER1mRNA表达.
- 在体外研究中,使用GPER1主激素G-1在MM细胞上,包括与骨髓 stromal 细胞共同培养.
- 在MM的小鼠模型中进行了体内异种移植研究.
- 调查GPER1对miR-29b/Sp1反循环的影响.
主要成果:
- 在明显的MM和血细胞白血病中,GPER1的表达减少.
- 通过G-1激活GPER1,在体外诱导了细胞亡和抗MM活性,克服了 stromal 细胞的保护.
- 在体内,G-1治疗抑制了MM瘤的生长,包括对博雷佐米布耐药的模型.
- G-1上调 miR-29b 上抑制网络,破坏一个关键的MM反循环.
结论:
- 在多发性骨髓瘤中,GPER1 是一种可用药物的点.
- GPER1激动剂显示出对MM的临床前疗效,包括耐药形式.
- 向GPER1为MM治疗提供了一个新的治疗途径.
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