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Carbon Chain Length Modulates MDA-MB-231 Breast Cancer Cell Killing Mechanisms by Mitochondrially Targeted Aryl-Urea Fatty Acids.
ChemMedChem ( IF 3.6 ) Pub Date : 2020-01-09 , DOI: 10.1002/cmdc.201900577 Michael Murray 1 , Ariane Roseblade 2 , Yongjuan Chen 1 , Kirsi Bourget 1 , Tristan Rawling 2
ChemMedChem ( IF 3.6 ) Pub Date : 2020-01-09 , DOI: 10.1002/cmdc.201900577 Michael Murray 1 , Ariane Roseblade 2 , Yongjuan Chen 1 , Kirsi Bourget 1 , Tristan Rawling 2
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Targeting the tumor cell mitochondrion could produce novel anticancer agents. We designed an aryl-urea fatty acid (1 g; 16({[4-chloro-3-(trifluoromethyl)phenyl]carbamoyl}amino)hexadecanoic acid) that disrupted the mitochondrion and decreased MDA-MB-231 breast cancer cell viability. To optimize the aryl-ureas the present study evaluated mitochondrial targeting by 1 g analogues containing alkyl chains between 10-17 carbons. Using the dye JC-1, the C12-C17 analogues efficiently disrupted the mitochondrial membrane potential (IC50 s 3.5±1.2 to 7.6±1.1 μM) and impaired ATP production; shorter analogues were less active. 7-Aminoactinomycin D/annexin V staining and flow cytometry showed that these agents activated the killing mechanisms of necrosis and apoptosis to varying extents (7-aminoactinomycin D/annexin V staining ratios 4.3-6.0). Indeed, 1 g and its C17 analogue preferentially activated necrosis and apoptosis, respectively (ratios 2.1 and 16). Taken together, alkyl chain length is a determinant of mitochondrial targeting by aryl-ureas and can be varied to develop analogues that activate apoptosis or necrosis in a regulated fashion.
中文翻译：
碳链长度通过线粒体靶向芳基尿素脂肪酸来调节MDA-MB-231乳腺癌细胞杀伤机制。
靶向肿瘤细胞线粒体可以产生新型抗癌药。我们设计了一种芳基脲脂肪酸（1 g； 16（{[4-氯-3-（三氟甲基）苯基]氨基甲酰基}氨基）十六烷酸）破坏线粒体并降低MDA-MB-231乳腺癌细胞的活力。为了优化芳基脲，本研究评估了1 g含10-17个碳原子之间烷基链的类似物的线粒体靶向性。使用染料JC-1，C12-C17类似物可有效破坏线粒体膜电位（IC50为3.5±1.2至7.6±1.1μM）并破坏ATP的产生；较短的类似物活性较低。7-氨基放线菌素D / annexin V染色和流式细胞仪显示这些试剂在不同程度上激活了坏死和细胞凋亡的杀伤机制（7-氨基放线菌素D / annexin V染色比为4.3-6.0）。的确，1 g及其C17类似物分别优先激活坏死和凋亡（比率2.1和16）。综上所述，烷基链长是芳基脲对线粒体靶向的决定因素，可以改变以开发出以调节方式激活细胞凋亡或坏死的类似物。
更新日期：2020-01-09
中文翻译：
碳链长度通过线粒体靶向芳基尿素脂肪酸来调节MDA-MB-231乳腺癌细胞杀伤机制。
靶向肿瘤细胞线粒体可以产生新型抗癌药。我们设计了一种芳基脲脂肪酸（1 g； 16（{[4-氯-3-（三氟甲基）苯基]氨基甲酰基}氨基）十六烷酸）破坏线粒体并降低MDA-MB-231乳腺癌细胞的活力。为了优化芳基脲，本研究评估了1 g含10-17个碳原子之间烷基链的类似物的线粒体靶向性。使用染料JC-1，C12-C17类似物可有效破坏线粒体膜电位（IC50为3.5±1.2至7.6±1.1μM）并破坏ATP的产生；较短的类似物活性较低。7-氨基放线菌素D / annexin V染色和流式细胞仪显示这些试剂在不同程度上激活了坏死和细胞凋亡的杀伤机制（7-氨基放线菌素D / annexin V染色比为4.3-6.0）。的确，1 g及其C17类似物分别优先激活坏死和凋亡（比率2.1和16）。综上所述，烷基链长是芳基脲对线粒体靶向的决定因素，可以改变以开发出以调节方式激活细胞凋亡或坏死的类似物。
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