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具有广泛健康改善作用的热量限制模拟物鉴定的发现平台。

A discovery platform for the identification of caloric restriction mimetics with broad health-improving effects.

机构信息

Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, INSERM U 1138, Paris, France.

Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Center, Villejuif, France.

出版信息

Autophagy. 2020 Jan;16(1):188-189. doi: 10.1080/15548627.2019.1688984. Epub 2019 Nov 7.

Abstract

The age-related decline in organismal fitness results in vulnerability to pathologies and eventual lethal decay. One way to counteract cellular aging and to delay and/or prevent the onset of age-related maladies is the reduction of calorie intake or the institution of fasting regimens. Caloric restriction mimetics (CRMs) have the ability to imitate the health-promoting and lifespan-extending effects of caloric restriction without the need for dietary restriction. CRMs induce an increase in autophagic flux in response to the deacetylation of cellular proteins in the absence of cytotoxicity. Here we report the development of a high-throughput discovery platform for novel CRMs that uses systems biology approaches, in vitro validation and functional tests employing in vivo disease models. This workflow led to the identification of 3,4-dimethoxychalcone (3,4-DC) as a novel CRM that stimulated TFEB (transcription factor EB)- and TFE3 (transcription factor E3)-dependent macroautophagy/autophagy. 3,4-DC showed cardioprotective effects and stimulated anticancer immunosurveillance in the context of immunogenic chemotherapy.

摘要

随着生物体适应能力的下降,与年龄相关的疾病变得脆弱,最终导致致命的衰退。对抗细胞衰老,延缓和/或预防与年龄相关疾病发生的一种方法是减少热量摄入或采用禁食方案。热量限制模拟物(CRMs)具有模仿热量限制的促进健康和延长寿命的作用,而无需限制饮食。CRMs 在没有细胞毒性的情况下,通过细胞蛋白去乙酰化反应,诱导自噬通量增加。在这里,我们报告了一种新的 CRM 的高通量发现平台的开发,该平台采用系统生物学方法、体外验证和功能测试,利用体内疾病模型。这一工作流程确定了 3,4-二甲氧基查尔酮(3,4-DC)是一种新型的 CRM,可刺激 TFEB(转录因子 EB)和 TFE3(转录因子 E3)依赖性巨自噬/自噬。3,4-DC 在免疫化疗的情况下表现出心脏保护作用,并刺激了抗肿瘤免疫监视。

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