Abstract
Hypothalamic neuron circuits regulating energy balance are highly plastic and develop in response to nutrient and hormonal cues. To identify processes that might be susceptible to gestational influences in mice, we characterized the ontogeny of proopiomelanocortin (POMC) and neuropeptide Y (NPY) cell populations, which exert opposing influences on food intake and body weight. These analyses revealed that Pomc is broadly expressed in immature hypothalamic neurons and that half of embryonic Pomc-expressing precursors subsequently adopt a non-POMC fate in adult mice. Moreover, nearly one quarter of the mature NPY+ cell population shares a common progenitor with POMC+ cells.
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Acknowledgements
We thank L. Sussel, H. Wichterle and D. Accili for critical reading of our manuscript and helpful comments; R. Leibel for support and major funding for this project (RO1 DK52431-16); J. Overton for help with confocal imaging; L. Yang of the Diabetes and Endocrinology Research Center Pathology Core for cryosectioning and C. Liu of the Irving Institute Clinical and Translational Science Award, FACS core (National Center for Research Resources UL1 RR024156); M. Low for Pomc-GFP mice (University of Michigan Health Center), J. Elmquist for Pomc-Cre mice (Univerisity of Texas Southwestern Medical Center) and B. Lowell for Npy-hrGFP mice (Beth Israel Deaconess Medical Center) for generously providing mouse reagents. This work was supported by F31DK079372 (S.L.P.), US Institute of Human Nutrition Training Grant 2T32DK007647-21 (J.S.C.), American Diabetes Association Grant 7-07RA-195 (L.M.Z.), Columbia Diabetes and Endocrinology Research Center Pilot and Feasibility Award P30 DK63608-07 (L.M.Z.) and NY Obesity Research Center Pilot and Feasibility Grant P30 DK26687-26 (L.M.Z.).
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S.L.P. performed experiments, analyzed data and wrote the paper; J.S.C. generated data for confocal analysis and contributed to data analysis; L.M.Z. designed the study, analyzed the data and wrote the paper.
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Padilla, S., Carmody, J. & Zeltser, L. Pomc-expressing progenitors give rise to antagonistic neuronal populations in hypothalamic feeding circuits. Nat Med 16, 403–405 (2010). https://doi.org/10.1038/nm.2126
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DOI: https://doi.org/10.1038/nm.2126
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