Loss of the actin remodeler Eps8 causes intestinal defects and improved metabolic status in mice

Arianna Tocchetti, Charlotte Blanche Ekalle Soppo, Fabio Zani, Fabrizio Bianchi, Maria Cristina Gagliani, Benedetta Pozzi, Jan Rozman, Ralf Elvert, Nicole Ehrhardt, Birgit Rathkolb, Corinna Moerth, Marion Horsch, Helmut Fuchs, Valérie Gailus-Durner, Johannes Beckers, Martin Klingenspor, Eckhard Wolf, Martin Hrabé De Angelis, Eugenio Scanziani, Carlo TacchettiGiorgio Scita, Pier Paolo Di Fiore, Nina Offenhäuser

Research output: Contribution to journalArticlepeer-review

Abstract

Background: In a variety of organisms, including mammals, caloric restriction improves metabolic status and lowers the incidence of chronic-degenerative diseases, ultimately leading to increased lifespan. Methodology/Principal Findings: Here we show that knockout mice for Eps8, a regulator of actin dynamics, display reduced body weight, partial resistance to age- or diet-induced obesity, and overall improved metabolic status. Alteration in the liver gene expression profile, in behavior and metabolism point to a calorie restriction-like phenotype in Eps8 knockout mice. Additionally, and consistent with a calorie restricted metabolism, Eps8 knockout mice show increased lifespan. The metabolic alterations in Eps8 knockout mice correlated with a significant reduction in intestinal fat absorption presumably caused by a 25% reduction in intestinal microvilli length. Conclusions/Significance: Our findings implicate actin dynamics as a novel variable in the determination of longevity. Additionally, our observations suggest that subtle differences in energy balance can, over time, significantly affect bodyweight and metabolic status in mice.

Original languageEnglish
Article numbere9468
JournalPLoS One
Volume5
Issue number3
DOIs
Publication statusPublished - Mar 2 2010

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

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