Effect of conjugates of all-trans-retinoic acid and shorter polyene chain analogues with amino acids on prostate cancer cell growth
作者:Eldem Sadikoglou、George Magoulas、Christina Theodoropoulou、Constantinos M. Athanassopoulos、Efstathia Giannopoulou、Olga Theodorakopoulou、Denis Drainas、Dionysios Papaioannou、Evangelia Papadimitriou
DOI:10.1016/j.ejmech.2009.03.029
日期:2009.8
cells. In contrast to ATRA, all conjugates bearing amino acids with polar side chains showed no inhibitory effect on LNCaP cell proliferation, while conjugates with α-amino acids with lipophilic side chain, such as 7, or linear amino acids, such as 9, significantly decreased prostate cancer LNCaP cell number. Interestingly, while the effect of ATRA was RARα-dependent, the effect of its active analogues
在本工作中,通过将酸性类维生素A的琥珀酰亚胺基活性酯与适当保护的氨基酸或肽偶联,合成了一系列氨基酸与全反式维甲酸(ATRA)和较短的多烯链类似物的共轭物。通过脱保护,并检查其对人前列腺癌LNCaP细胞活力的可能影响。与ATRA相反,所有带有极性侧链氨基酸的结合物对LNCaP细胞的增殖均无抑制作用,而带有亲脂性侧链的α-氨基酸(例如7)或线性氨基酸(例如9)的结合物,显着降低了前列腺癌LNCaP细胞的数量。有趣的是,尽管ATRA的作用是RARα依赖性的,但其活性类似物的作用并未受到选择性RARα拮抗剂的抑制。细胞周期分析显示对细胞周期没有影响,而膜联蛋白V-碘化丙啶染色的定量分析表明,ATRA及其类似物均不影响LNCaP细胞凋亡或坏死。这些结果表明,化合物7和9是潜在有用的试剂,需要进一步的临床前开发以治疗前列腺癌。