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Protection against overfeeding-induced weight gain is preserved in obesity but does not require FGF21 or MC4R

Author

Listed:
  • Camilla Lund

    (University of Copenhagen)

  • Pablo Ranea-Robles

    (University of Copenhagen)

  • Sarah Falk

    (University of Copenhagen)

  • Dylan M. Rausch

    (University of Copenhagen)

  • Grethe Skovbjerg

    (University of Copenhagen
    Gubra ApS)

  • Victoria Kamma Vibe-Petersen

    (University of Copenhagen)

  • Nathalie Krauth

    (University of Copenhagen)

  • Jacob Lercke Skytte

    (Gubra ApS)

  • Vasiliki Vana

    (University of Copenhagen)

  • Urmas Roostalu

    (Gubra ApS)

  • Tune H. Pers

    (University of Copenhagen)

  • Jens Lund

    (University of Copenhagen)

  • Christoffer Clemmensen

    (University of Copenhagen)

Abstract

Overfeeding triggers homeostatic compensatory mechanisms that counteract weight gain. Here, we show that both lean and diet-induced obese (DIO) male mice exhibit a potent and prolonged inhibition of voluntary food intake following overfeeding-induced weight gain. We reveal that FGF21 is dispensable for this defense against weight gain. Targeted proteomics unveiled novel circulating factors linked to overfeeding, including the protease legumain (LGMN). Administration of recombinant LGMN lowers body weight and food intake in DIO mice. The protection against weight gain is also associated with reduced vascularization in the hypothalamus and sustained reductions in the expression of the orexigenic neuropeptide genes, Npy and Agrp, suggesting a role for hypothalamic signaling in this homeostatic recovery from overfeeding. Overfeeding of melanocortin 4 receptor (MC4R) KO mice shows that these mice can suppress voluntary food intake and counteract the enforced weight gain, although their rate of weight recovery is impaired. Collectively, these findings demonstrate that the defense against overfeeding-induced weight gain remains intact in obesity and involves mechanisms independent of both FGF21 and MC4R.

Suggested Citation

  • Camilla Lund & Pablo Ranea-Robles & Sarah Falk & Dylan M. Rausch & Grethe Skovbjerg & Victoria Kamma Vibe-Petersen & Nathalie Krauth & Jacob Lercke Skytte & Vasiliki Vana & Urmas Roostalu & Tune H. Pe, 2024. "Protection against overfeeding-induced weight gain is preserved in obesity but does not require FGF21 or MC4R," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45223-0
    DOI: 10.1038/s41467-024-45223-0
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    References listed on IDEAS

    as
    1. Anders B. Klein & Trine S. Nicolaisen & Niels Ørtenblad & Kasper D. Gejl & Rasmus Jensen & Andreas M. Fritzen & Emil L. Larsen & Kristian Karstoft & Henrik E. Poulsen & Thomas Morville & Ronni E. Sahl, 2021. "Pharmacological but not physiological GDF15 suppresses feeding and the motivation to exercise," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
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