Proteomics

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One-day thermal regime extends lifespan


ABSTRACT: Environmental factors such as temperature can modulate animal’s lifespan. However, the underlying mechanisms remain largely undefined. Through proteomic analysis of C. elegans at different time points (young adult, middle age, and old age) and under two temperature conditions (20°C and 25°C), we found that temperature affects C. elegans lifespan largely by modulating the proteostasis. Surprisingly, although animals live shorter at the higher temperature, we found that worms cultured at 25°C for one day at early adulthood promotes the protein homeostasis by decreasing the synthesis and increasing the degradation, suggesting the beneficial effects. Consistent with the finding, animals shifting from 20°C to 25°C for 24 hours between the larval L4 to adult Day 3 stages indeed live longer and are more resistant to stresses. Furthermore, we found that the one-day thermal induced lifespan extension is mediated by the FOXO transcriptional factor DAF-16. These results reveal an unexpected and complicated mechanism underlying the temperature effects on aging, which could potentially aid to develop strategies for treating aging related diseases.

INSTRUMENT(S): LTQ Orbitrap Elite

ORGANISM(S): Caenorhabditis Elegans

TISSUE(S): Whole Body

SUBMITTER: Jichang Huang  

LAB HEAD: Xumin Zhang

PROVIDER: PXD024916 | Pride | 2023-03-11

REPOSITORIES: Pride

Dataset's files

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Action DRS
Orbi05217XM_HJC_T1_1.raw Raw
Orbi05218XM_HJC_T1_2.raw Raw
Orbi05219XM_HJC_T1_3.raw Raw
Orbi05220XM_HJC_T1_4.raw Raw
Orbi05221XM_HJC_T1_5.raw Raw
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Publications

One-day thermal regime extends the lifespan in Caenorhabditis elegans.

Huang Jichang J   Wang Kai K   Wang Mengqing M   Wu Zhen Z   Xie Guangjie G   Peng Yuling Y   Zhang Yan Y   Zhang Xumin X   Shao Zhiyong Z  

Computational and structural biotechnology journal 20221215


Environmental factors, including temperature, can modulate an animal's lifespan. However, their underlying mechanisms remain largely undefined. We observed a profound effect of temperature on the aging of <i>Caenorhabditis elegans</i> (<i>C. elegans</i>) by performing proteomic analysis at different time points (young adult, middle age, and old age) and temperature conditions (20 °C and 25 °C). Importantly, although at the higher temperature, animals had short life spans, the shift from 20 °C to  ...[more]

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