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Small-molecule TFEB Pathway Agonists That Ameliorate Metabolic Syndrome in Mice and Extend C. Elegans Lifespan

Small-molecule TFEB Pathway Agonists That Ameliorate Metabolic Syndrome in Mice and Extend C. Elegans Lifespan

Chensu Wang, Hanspeter Niederstrasser, Peter M Douglas, Rueyling Lin, Juan Jaramillo, Yang Li, Nathaniel W Oswald, Anwu Zhou, Elizabeth A McMillan, Saurabh Mendiratta, Zhaohui Wang, Tian Zhao, Zhiqaing Lin, etc.

Nat Commun. 2017 Dec 22;8(1):2270.

PMID: 29273768

Abstract:

Drugs that mirror the cellular effects of starvation mimics are considered promising therapeutics for common metabolic disorders, such as obesity, liver steatosis, and for ageing. Starvation, or caloric restriction, is known to activate the transcription factor EB (TFEB), a master regulator of lipid metabolism and lysosomal biogenesis and function. Here, we report a nanotechnology-enabled high-throughput screen to identify small-molecule agonists of TFEB and discover three novel compounds that promote autophagolysosomal activity. The three lead compounds include the clinically approved drug, digoxin; the marine-derived natural product, ikarugamycin; and the synthetic compound, alexidine dihydrochloride, which is known to act on a mitochondrial target. Mode of action studies reveal that these compounds activate TFEB via three distinct Ca2+-dependent mechanisms. Formulation of these compounds in liver-tropic biodegradable, biocompatible nanoparticles confers hepatoprotection against diet-induced steatosis in murine models and extends lifespan of Caenorhabditis elegans. These results support the therapeutic potential of small-molecule TFEB activators for the treatment of metabolic and age-related disorders.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1715306	Alexidine dihydrochloride		1715-30-6	Price
AP36531789	Ikarugamycin		36531-78-9	Price

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