Circulating perilipin 2 levels are associated with fat mass, inflammatory and metabolic markers and are higher in women than men

Maria Conte, Aurelia Santoro, Salvatore Collura, Morena Martucci, Giuseppe Battista, Alberto Bazzocchi, Cristina Morsiani, Federica Sevini, Miriam Capri, Daniela Monti, Claudio Franceschi, Stefano Salvioli

Research output: Contribution to journalArticlepeer-review

Abstract

Perilipin 2 (PLIN2) is a protein involved in lipid storage and metabolism in non-adipose tissues. Detectable levels of circulating PLIN2 (cPLIN2) have been reported to be associated with some types of cancer, but no systematic analysis of age-related modifications in cPLIN2 levels has ever been performed. We measured serum cPLIN2 in a group of old people including centenarians in comparison with young subjects and tested possible correlations with parameters of body composition, fat and glucose metabolism, and inflammation. We found that: i. levels of cPLIN2 do not change with age, but women have higher levels of cPLIN2 with respect to men; ii. cPLIN2 levels strongly correlate to BMI, as well as fat and lean mass; iii. cPLIN2 levels strongly correlate with the proinflammatory adipokine leptin. Due to the adipogenic activity of leptin, it is hypothesized that cPLIN2 is affected and possibly regulated by this pleiotropic adipokine. Moreover, these results suggest that cPLIN2 (possibly together with leptin) could be assumed as a proxy for body adiposity.

Original languageEnglish
Pages (from-to)7931-7942
Number of pages12
JournalAging
Volume13
Issue number6
DOIs
Publication statusPublished - Mar 17 2021

Keywords

  • body composition
  • circulating perilipin 2
  • fat mass
  • leptin

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