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维奥拉赛因改善了黑色素瘤球状瘤中维穆拉费尼布的反应

Beatriz Aires-Lopes¹, Giselle Zenker Justo², Helon Guimarães Cordeiro¹

¹Department of Biochemistry and Tissue Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil.

Natural product research

|August 12, 2023

概括

维奥拉塞因与维穆拉费尼布 (ViVe) 结合,有效降低黑色素瘤细胞存活率,并触发细胞死亡. 这种组合降低脂肪酸合成酶 (FASN) 的调节,增强维穆拉菲尼布.

科学领域:

生物化学生物化学
癌症生物学癌症生物学
药理学药理学是指药理学的学科.

背景情况:

化疗耐药性在黑色素瘤治疗中构成了重大挑战.
紫色素是一种来自Chromobacterium violaceum的颜料,具有抗瘤特性,包括在黑色素瘤中诱导亡.
BRAF突变黑色素瘤是一种常见的亚型,具有特定的治疗脆弱性.

研究的目的:

调查violacein作为提高BRAF突变黑色素瘤中vemurafenib疗效的敏感剂的潜力.
评估紫罗素和维穆拉费尼布组合 (ViVe) 对黑色素瘤细胞活力和关键蛋白质水平的影响.
阐明ViVe的敏感化作用背后的分子机制,重点关注p62和脂肪酸合成酶 (FASN).

主要方法:

使用了BRAF突变黑色素瘤球体和2D细胞培养系统.
评估细胞活力和细胞死亡,使用素和乙同分体染色.
量化p62和脂肪酸合成酶 (FASN) 蛋白的含量.

主要成果:

在亚毒度下,ViVe组合显示出有效性,干扰黑色素瘤球状球体生存率.
在球状和二维黑色素瘤细胞模型中,ViVe治疗显著增加了亡率.
有证据表明,ViVe降低了FASN的调节,FASN是一个关键的媒介,有助于其敏感化作用.

结论:

维奥拉塞因作为敏感剂,增强了维穆拉费尼布对抗BRAF突变黑色素瘤的有效性.
维维组合提供了一个有希望的策略,以克服黑色素瘤的化疗耐药性.
维维对FASN的下调是促进改善治疗结果的关键机制.

关键词:

黑色素瘤是一种黑色素瘤.球形状的球形体是指球形状的球体.在Vemurafenib中使用.在维奥拉塞内.

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