Salivary PYY: A putative bypass to satiety

Andres Acosta, Maria D. Hurtado, Oleg Gorbatyuk, Michael la Sala, David Duncan, George Aslanidi, Martha Campbell-Thompson, Lei Zhang, Herbert Herzog, Antonis Voutetakis, Bruce J. Baum, Sergei Zolotukhin

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

Peptide YY 3-36 is a satiation hormone released postprandially into the bloodstream from L-endocrine cells in the gut epithelia. In the current report, we demonstrate PYY 3-36 is also present in murine as well as in human saliva. In mice, salivary PYY 3-36 derives from plasma and is also synthesized in the taste cells in taste buds of the tongue. Moreover, the cognate receptor Y2R is abundantly expressed in the basal layer of the progenitor cells of the tongue epithelia and von Ebner's gland. The acute augmentation of salivary PYY 3-36 induced stronger satiation as demonstrated in feeding behavioral studies. The effect is mediated through the activation of the specific Y2 receptor expressed in the lingual epithelial cells. In a long-term study involving diet-induced obese (DIO) mice, a sustained increase in PYY 3-36 was achieved using viral vector-mediated gene delivery targeting salivary glands. The chronic increase in salivary PYY 3-36 resulted in a significant long-term reduction in food intake (FI) and body weight (BW). Thus this study provides evidence for new functions of the previously characterized gut peptide PYY 3-36 suggesting a potential simple and efficient alternative therapeutic approach for the treatment of obesity.

Original languageEnglish (US)
Article numbere26137
JournalPloS one
Volume6
Issue number10
DOIs
StatePublished - Oct 10 2011

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Salivary PYY: A putative bypass to satiety'. Together they form a unique fingerprint.

  • Cite this

    Acosta, A., Hurtado, M. D., Gorbatyuk, O., la Sala, M., Duncan, D., Aslanidi, G., Campbell-Thompson, M., Zhang, L., Herzog, H., Voutetakis, A., Baum, B. J., & Zolotukhin, S. (2011). Salivary PYY: A putative bypass to satiety. PloS one, 6(10), [e26137]. https://doi.org/10.1371/journal.pone.0026137