Oncogene:Myc在调节前列腺癌脂肪酸合成中的新型代谢功能

2020-11-30 AlexYang MedSci原创

部分人类前列腺癌表现出脂肪酸的从头合成增加,但这种代谢异常的分子驱动因素仍不清楚。

部分人类前列腺癌表现出脂肪酸的从头合成增加,但这种代谢异常的分子驱动因素仍不清楚。

最近,有研究人员揭示了c-Myc(Myc)在调节脂肪酸合成中的一种新的代谢功能。研究人员通过以下方法调查了Myc在调节脂肪酸合成中的作用:(a)前列腺癌基因组图谱(TCGA)数据集的查询,(b)染色质免疫沉淀,(c)利用小鼠模型和人类样本测定脂肪酸合成酶的表达和靶向代谢组学。研究结果表明,在前列腺癌TCGA数据集中,MYC的表达与ACLY、ACC1和FASN等关键脂肪酸合成基因的表达呈正相关。染色质免疫共沉淀显示Myc能够结合ACLY、ACC1和FASN的启动子。Hi-Myc转基因小鼠中前列腺特异性过度表达Myc能够导致肿瘤病灶中ACLY、ACC1和FASN蛋白过度表达,并增加循环总游离脂肪酸水平。靶向代谢组学证实了与相应的对照组相比,Hi-Myc小鼠和人类受试者血浆中循环单个脂肪酸水平增加。免疫组化也揭示了人前列腺癌样本中Myc与ACC1的表达显著呈正相关。

正常和癌化人类前列腺中Myc蛋白表达与ALCY或者ACC1蛋白表达的关联

最后,研究人员指出,Myc调控的脂肪酸合成是治疗和/或预防前列腺癌的有效靶点。

原始出处:

Krishna B Singh , Eun-Ryeong Hahm , Su-Hyeong Kim et al. A novel metabolic function of Myc in regulation of fatty acid synthesis in prostate cancer. Oncogene. Nov 2020

 

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    2021-06-18 cy0324
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    2020-12-02 guihongzh
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    2020-12-02 zsyan
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    2020-11-30 Psycho.Dr Du

    生物信息学发挥新作用#前列腺癌#

    0

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    2020-11-30 misszhang

    前列腺癌相关研究,学习了,谢谢梅斯

    0

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