Frontiers in Aging Neuroscience (Jul 2018)

Low Concentrations of Caffeine and Its Analogs Extend the Lifespan of Caenorhabditis elegans by Modulating IGF-1-Like Pathway

  • Xiaocui Du,
  • Xiaocui Du,
  • Xiaocui Du,
  • Yun Guan,
  • Yun Guan,
  • Yun Guan,
  • Qin Huang,
  • Qin Huang,
  • Qin Huang,
  • Ming Lv,
  • Ming Lv,
  • Ming Lv,
  • Xiaofang He,
  • Xiaofang He,
  • Xiaofang He,
  • Liang Yan,
  • Shuhei Hayashi,
  • Shuhei Hayashi,
  • Chongye Fang,
  • Chongye Fang,
  • Chongye Fang,
  • Chongye Fang,
  • Chongye Fang,
  • Xuanjun Wang,
  • Xuanjun Wang,
  • Xuanjun Wang,
  • Xuanjun Wang,
  • Xuanjun Wang,
  • Jun Sheng,
  • Jun Sheng,
  • Jun Sheng,
  • Jun Sheng

DOI
https://doi.org/10.3389/fnagi.2018.00211
Journal volume & issue
Vol. 10

Abstract

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Caffeine has been reported to delay aging and protect aging-associated disorders in Caenorhabditis elegans. However, the effects of low concentration of caffeine and its analogs on lifespan are currently missing. Herein, we report that at much lower concentrations (as low as 10 μg/ml), caffeine extended the lifespan of C. elegans without affecting food intake and reproduction. The effect of caffeine was dependent on IGF-1-like pathway, although the insulin receptor homolog, daf-2 allele, e1371, was dispensable. Four caffeine analogs, 1-methylxanthine, 7-methylxanthine, 1,3-dimethylxanthine, and 1,7-dimethylxanthine, also extended lifespan, whereas 3-methylxanthine and 3,7-dimethylxanthine did not exhibit lifespan-extending activity.

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