Abstract
Sexual dimorphisms are responsible for profound metabolic differences in health and behavior. Whether males and females react differently to environmental cues, such as solar ultraviolet (UV) exposure, is unknown. Here we show that solar exposure induces food-seeking behavior, food intake, and food-seeking behavior and food intake in men, but not in women, through epidemiological evidence of approximately 3,000 individuals throughout the year. In mice, UVB exposure leads to increased food-seeking behavior, food intake and weight gain, with a sexual dimorphism towards males. In both mice and human males, increased appetite is correlated with elevated levels of circulating ghrelin. Specifically, UVB irradiation leads to p53 transcriptional activation of ghrelin in skin adipocytes, while a conditional p53-knockout in mice abolishes UVB-induced ghrelin expression and food-seeking behavior. In females, estrogen interferes with the p53–chromatin interaction on the ghrelin promoter, thus blocking ghrelin and food-seeking behavior in response to UVB exposure. These results identify the skin as a major mediator of energy homeostasis and may lead to therapeutic opportunities for sex-based treatments of endocrine-related diseases.
Original language | English |
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Pages (from-to) | 883-900 |
Number of pages | 18 |
Journal | Nature Metabolism |
Volume | 4 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2022 |
Bibliographical note
Publisher Copyright:© 2022, The Author(s).
Funding
The authors gratefully thank Professor Masayasu Kojima (Kurume University, Japan) for the gift of the ghrelin promoter plasmid, Professor Moshe Oren (Weizmann Institute, Israel) for the gift of the p53 plasmids, useful discussions and reviewing the paper, Professor Jason Caroll (University of Cambridge, UK) for the gift of the ER-α plasmid, Professor Eli Pikarsky (The Hebrew University of Jerusalem, Israel) for the gift of the p53-floxed mice and Professor Peter Moeller (University of Ulm, Germany) for the gift of the LiSa-2 cells. C.L. gratefully thanks Professor Noga Kronfeld-Schor (Tel Aviv University, Israel) for useful discussions. C.L. acknowledges grant support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programmer (grant agreement no. 726225), the I-CORE Gene Regulation in Complex Human Disease Center (no. 41/11) and Israel Science Foundation (ISF) (grant 129/13). C.L. thanks Yuval and Omer Levy for exponential joy and Medina and Elisha Levy for tremendous support. S.P. is the recipient of a 2017 I-core travel scholarship, 4thDjerassi graduate student symposium 2019 award, 2020 student excellence award at the Department of Human Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, CBRC 2ndZvi and Esther Weinstat Graduate Students 2020 award and EMBO Scientific Exchange Grant (no. 9256). S.P. thanks Smita Sunil Parikh and Rushita Parikh for the journey. Parts of the research in A.W.’s lab is supported by the ISF (grant 1781/16), Israel Ministry of Science and Technology (grants 3-13608 and 84/19) and EPM Inc. The authors gratefully thank Professor Masayasu Kojima (Kurume University, Japan) for the gift of the ghrelin promoter plasmid, Professor Moshe Oren (Weizmann Institute, Israel) for the gift of the p53 plasmids, useful discussions and reviewing the paper, Professor Jason Caroll (University of Cambridge, UK) for the gift of the ER-α plasmid, Professor Eli Pikarsky (The Hebrew University of Jerusalem, Israel) for the gift of the p53-floxed mice and Professor Peter Moeller (University of Ulm, Germany) for the gift of the LiSa-2 cells. C.L. gratefully thanks Professor Noga Kronfeld-Schor (Tel Aviv University, Israel) for useful discussions. C.L. acknowledges grant support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programmer (grant agreement no. 726225), the I-CORE Gene Regulation in Complex Human Disease Center (no. 41/11) and Israel Science Foundation (ISF) (grant 129/13). C.L. thanks Yuval and Omer Levy for exponential joy and Medina and Elisha Levy for tremendous support. S.P. is the recipient of a 2017 I-core travel scholarship, 4 Djerassi graduate student symposium 2019 award, 2020 student excellence award at the Department of Human Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, CBRC 2 Zvi and Esther Weinstat Graduate Students 2020 award and EMBO Scientific Exchange Grant (no. 9256). S.P. thanks Smita Sunil Parikh and Rushita Parikh for the journey. Parts of the research in A.W.’s lab is supported by the ISF (grant 1781/16), Israel Ministry of Science and Technology (grants 3-13608 and 84/19) and EPM Inc. th nd
Funders | Funder number |
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Department of Human Genetics and Biochemistry | |
EPM Inc. | |
I-CORE Gene Regulation in Complex Human Disease Center | 41/11 |
European Molecular Biology Organization | 9256, 1781/16 |
Horizon 2020 Framework Programme | 726225 |
Kurume University | |
European Commission | |
Israel Science Foundation | 129/13 |
Tel Aviv University | |
Ministry of science and technology, Israel | 3-13608, 84/19 |
Universität Ulm | |
Sackler Faculty of Medicine, Tel-Aviv University |