Sarcosine Is Uniquely Modulated by Aging and Dietary Restriction in Rodents and Humans | Zendy

Ryan O. Walters | Zendy; Esperanza Arias | Zendy; Antonio Díaz | Zendy; Emmanuel S. Burgos | Zendy; Fangxia Guan | Zendy; Simoni Tiano | Zendy; Kai Mao | Zendy; Cara L. Green | Zendy; Yungping Qiu | Zendy; Hardik Shah | Zendy; Donghai Wang | Zendy; Adam D. Hudgins | Zendy; Tahmineh Tabrizian | Zendy; Valeria Tosti | Zendy; David Shechter | Zendy; Luigi Fontana | Zendy; Irwin J. Kurland | Zendy; Nir Barzilai | Zendy; Ana María Cuervo | Zendy; Daniel Promislow | Zendy; Derek M. Huffman | Zendy

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Sarcosine Is Uniquely Modulated by Aging and Dietary Restriction in Rodents and Humans

Author(s) -

Ryan O. Walters,

Esperanza Arias,

Antonio Díaz,

Emmanuel S. Burgos,

Fangxia Guan,

Simoni Tiano,

Kai Mao,

Cara L. Green,

Yungping Qiu,

Hardik Shah,

Donghai Wang,

Adam D. Hudgins,

Tahmineh Tabrizian,

Valeria Tosti,

David Shechter,

Luigi Fontana,

Irwin J. Kurland,

Nir Barzilai,

Ana María Cuervo,

Daniel Promislow,

Derek M. Huffman

Publication year - 2018

Publication title -

cell reports

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 6.264

H-Index - 154

eISSN - 2639-1856

pISSN - 2211-1247

DOI - 10.1016/j.celrep.2018.09.065

Subject(s) - metabolome , sarcosine , proteostasis , autophagy , biology , metabolomics , microbiology and biotechnology , biochemistry , bioinformatics , amino acid , glycine , apoptosis

A hallmark of aging is a decline in metabolic homeostasis, which is attenuated by dietary restriction (DR). However, the interaction of aging and DR with the metabolome is not well understood. We report that DR is a stronger modulator of the rat metabolome than age in plasma and tissues. A comparative metabolomic screen in rodents and humans identified circulating sarcosine as being similarly reduced with aging and increased by DR, while sarcosine is also elevated in long-lived Ames dwarf mice. Pathway analysis in aged sarcosine-replete rats identify this biogenic amine as an integral node in the metabolome network. Finally, we show that sarcosine can activate autophagy in cultured cells and enhances autophagic flux in vivo, suggesting a potential role in autophagy induction by DR. Thus, these data identify circulating sarcosine as a biomarker of aging and DR in mammalians and may contribute to age-related alterations in the metabolome and in proteostasis.

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