Critical role of antioxidant programs in enzalutamide-resistant prostate cancer
Critical role of antioxidant programs in enzalutamide-resistant prostate cancer
复制标题
抗氧化剂计划在恩杂鲁胺耐药性前列腺癌中的关键作用
DOI:
10.1038/s41388-023-02756-w
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发表时间:
2023
期刊:
影响因子:
8
通讯作者:
Blatt E
中科院分区:
文献类型:
--
作者:
Blatt E
Therapy resistance to second-generation androgen receptor (AR) antagonists, such as enzalutamide, is common in patients with advanced prostate cancer (PCa). To understand the metabolic alterations involved in enzalutamide resistance, we performed metabolomic, transcriptomic, and cistromic analyses of enzalutamide-sensitive and -resistant PCa cells, xenografts, patient-derived organoids, patient-derived explants, and tumors. We noted dramatically higher basal and inducible levels of reactive oxygen species (ROS) in enzalutamide-resistant PCa and castration-resistant PCa (CRPC), in comparison to enzalutamide-sensitive PCa cells or primary therapy-naive tumors respectively. Unbiased metabolomic evaluation identified that glutamine metabolism was consistently upregulated in enzalutamide-resistant PCa cells and CRPC tumors. Stable isotope tracing studies suggest that this enhanced glutamine metabolism drives an antioxidant program that allows these cells to tolerate higher basal levels of ROS. Inhibition of glutamine metabolism with either a small-molecule glutaminase inhibitor or genetic knockout of glutaminase enhanced ROS levels, and blocked the growth of enzalutamide-resistant PCa. The critical role of compensatory antioxidant pathways in maintaining enzalutamide-resistant PCa cells was validated by targeting another antioxidant program driver, ferredoxin 1. Taken together, our data identify a metabolic need to maintain antioxidant programs and a potentially targetable metabolic vulnerability in enzalutamide-resistant PCa.
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影响因子:
29
作者:
Arroyo JD;Jourdain AA;Calvo SE;Ballarano CA;Doench JG;Root DE;Mootha VK
通讯作者:
Mootha VK
影响因子:
5.8
作者:
Junda Liu;J. Geller;J. Albert;M. Kirshner
通讯作者:
M. Kirshner
影响因子:
3.9
作者:
Raghavendra Tk Poluri;Virginie Paquette;Eric P. Allain;Camille Lafront;Charles Joly;Cindy Weidmann;A. Droit;C. Guillemette;M. Pelletier;É. Audet
通讯作者:
É. Audet
影响因子:
4.8
作者:
F. Mitani;A. Ichiyama
通讯作者:
A. Ichiyama
DOI:
--
发表时间:
2018
期刊:
The Lancet Oncology
影响因子:
--
作者:
Elizabeth Gourd
通讯作者:
Elizabeth Gourd