Adiponectin Receptor PAQR-2 Signaling Senses Low Temperature to Promote C. Elegans Longevity by Regulating Autophagy

Overview

Journal Nat Commun

Specialty Biology

Date 2019 Jun 15

PMID 31197136

Citations 44

Authors

Yuan-Li Chen

Jun Tao

Pei-Ji Zhao

Wei Tang

Jian-Ping Xu

Ke-Qin Zhang

Cheng-Gang Zou

Affiliations

Soon will be listed here.

Abstract

Temperature is a key factor for determining the lifespan of both poikilotherms and homeotherms. It is believed that animals live longer at lower body temperatures. However, the precise mechanism remains largely unknown. Here, we report that autophagy serves as a boost mechanism for longevity at low temperature in the nematode Caenorhabditis elegans. The adiponectin receptor AdipoR2 homolog PAQR-2 signaling detects temperature drop and augments the biosynthesis of two ω-6 polyunsaturated fatty acids, γ-linolenic acid and arachidonic acid. These two polyunsaturated fatty acids in turn initiate autophagy in the epidermis, delaying an age-dependent decline in collagen contents, and extending the lifespan. Our findings reveal that the adiponectin receptor PAQR-2 signaling acts as a regulator linking low temperature with autophagy to extend lifespan, and suggest that such a mechanism may be evolutionally conserved among diverse organisms.

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