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Sci Rep:致癌性PIK3CA的转化在乳腺上皮细胞中的影响

2017-04-11 MedSci MedSci原创

PIK3CA中的体细胞突变常常见于人类的多种癌症中,包括乳腺癌,它们可以改变细胞的生理学和肿瘤细胞对化学疗法的敏感性。这就使得PIK3CA成为早期检测和个性化治疗的一种有潜力的分子靶标。近期,一项发表在杂志Sci Rep上的研究使用1H核磁共振光谱(NMR)和气相色谱-质谱(GC-MS)与13C稳定同位素标记的葡萄糖和谷氨酰胺作为代谢示踪剂,探测了MCF10A细胞系中PIK3CA(H1047R)突

PIK3CA中的体细胞突变常常见于人类的多种癌症中,包括乳腺癌,它们可以改变细胞的生理学和肿瘤细胞对化学疗法的敏感性。这就使得PIK3CA成为早期检测和个性化治疗的一种有潜力的分子靶标。


近期,一项发表在杂志Sci Rep上的研究使用1H核磁共振光谱(NMR)和气相色谱-质谱(GC-MS)与13C稳定同位素标记的葡萄糖和谷氨酰胺作为代谢示踪剂,探测了MCF10A细胞系中PIK3CA(H1047R)突变体的单拷贝敲入后代谢中的表型变化,这是研究乳腺组织中致癌转化的重要细胞模型。

此项研究中,研究者们观察到几种代谢途径的影响,包括甘油磷酸胆碱水平的降低,以及谷氨酸分解,从头脂肪酸合成和丙酮酸进入三羧酸循环的增加。

此项研究结果突出了甘油脂代谢和脂肪生成的改变,作为在MCF10A细胞模型中重现的突变型PIK3CA转化的关键代谢表型。

原始出处:
Lau CE, Tredwell GD, et al. Metabolomic characterisation of the effects of oncogenic PIK3CA transformation in a breast epithelial cell line. Sci Rep. 2017 Apr 10;7:46079. doi: 10.1038/srep46079.

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    2017-04-22 xinmeili
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    2017-04-13 jambiya
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    2017-04-12 cqykthl

    没有突破呢?它是如何影响化疗疗效的?

    0

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