Withaferin A and Celastrol Overwhelm Proteostasis.
Withaferin A and Celastrol Overwhelm Proteostasis.
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Withaferin A和Celastrol压倒蛋白质稳态。
DOI:
10.3390/ijms25010367
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发表时间:
2023-12-27
影响因子:
5.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Withaferin A (WA) and celastrol (CEL) are major bioactive components of plants that have been widely employed in traditional medicine. The pleiotropic activities of plant preparations and the isolated compounds in vitro and in vivo have been documented in hundreds of studies. Both WA and CEL were shown to have anticancer activity. Although WA and CEL belong to different chemical classes, our synthesis of the available information suggests that the compounds share basic mechanisms of action. Both WA and CEL bind covalently to numerous proteins, causing the partial unfolding of some of these proteins and of many bystander proteins. The resulting proteotoxic stress, when excessive, leads to cell death. Both WA and CEL trigger the activation of the unfolded protein response (UPR) which, if the proteotoxic stress persists, results in apoptosis mediated by the PERK/eIF-2/ATF4/CHOP pathway or another UPR-dependent pathway. Other mechanisms of cell death may play contributory or even dominant roles depending on cell type. As shown in a proteomic study with WA, the compounds appear to function largely as electrophilic reactants, indiscriminately modifying reachable nucleophilic amino acid side chains of proteins. However, a remarkable degree of target specificity is imparted by the cellular context.
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影响因子:
5.6
作者:
Yang, Huanjie;Murthy, Shalini;Sarkar, Fazlul H.;Sheng, Shijie;Reddy, G. Prem-Veer;Dou, Q. Ping
通讯作者:
Dou, Q. Ping
影响因子:
4.4
作者:
Choi BS;Sapkota K;Kim S;Lee HJ;Choi HS;Kim SJ
通讯作者:
Kim SJ
DOI:
10.1155/2018/2623085
发表时间:
2018
期刊:
Evidence-based complementary and alternative medicine : eCAM
影响因子:
--
作者:
Lv M;Deng J;Tang N;Zeng Y;Lu C
通讯作者:
Lu C
影响因子:
5.3
作者:
Galehdar, Zohreh;Swan, Patrick;Cregan, Sean P.
通讯作者:
Cregan, Sean P.
影响因子:
6
作者:
Bale, Swarna;Pulivendala, Gauthami;Godugu, Chandraiah
通讯作者:
Godugu, Chandraiah