SLC17A1/3 transporters mediate renal excretion of Lac-Phe in mice and humans

Abstract: N-lactoyl-phenylalanine (Lac-Phe) is a lactate-derived metabolite that suppresses food intake and body weight. Little is known about the mechanisms that mediate Lac-Phe transport across cell membranes. Here we identify SLC17A1 and SLC17A3, two kidney-restricted plasma membrane-localized solute carriers, as physiologic urine Lac-Phe transporters. In cell culture, SLC17A1/3 exhibit high Lac-Phe efflux activity. In humans, levels of Lac-Phe in urine exhibit a strong genetic association with the SLC17A1-4 locus. Urine Lac-Phe levels are increased following a Wingate sprint test. In mice, genetic ablation of either SLC17A1 or SLC17A3 reduces urine Lac-Phe levels. Despite these differences, both knockout strains have normal blood Lac-Phe and body weights, demonstrating SLC17A1/3-dependent de-coupling of urine and plasma Lac-Phe pools. Together, these data establish SLC17A1/3 family members as the physiologic urine Lac-Phe transporters and uncover a biochemical pathway for the renal excretion of this signaling metabolite

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch
Notes
Nature Communications. - 15, 1 (2024) , 6895, ISSN: 2041-1723

Event
Veröffentlichung
(where)
Freiburg
(who)
Universität
(when)
2024
Creator
Li, Veronica L.
Xiao, Shuke
Schlosser, Pascal
Scherer, Nora
Wiggenhorn, Amanda L.
Spaas, Jan
Tung, Alan Sheng-Hwa
Karoly, Edward D.
Köttgen, Anna
Long, Jonathan Z.

DOI
10.1038/s41467-024-51174-3
URN
urn:nbn:de:bsz:25-freidok-2565864
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:37 AM CEST

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Associated

  • Li, Veronica L.
  • Xiao, Shuke
  • Schlosser, Pascal
  • Scherer, Nora
  • Wiggenhorn, Amanda L.
  • Spaas, Jan
  • Tung, Alan Sheng-Hwa
  • Karoly, Edward D.
  • Köttgen, Anna
  • Long, Jonathan Z.
  • Universität

Time of origin

  • 2024

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