PMID- 32422642 OWN - NLM STAT- MEDLINE DCOM- 20211027 LR - 20211027 IS - 1423-0194 (Electronic) IS - 0028-3835 (Linking) VI - 111 IP - 3 DP - 2021 TI - Lipid Droplets Accumulate in the Hypothalamus of Mice and Humans with and without Metabolic Diseases. PG - 263-272 LID - 10.1159/000508735 [doi] AB - BACKGROUND: In peripheral tissues, the lipid droplet (LD) organelle links lipid metabolism, inflammation, and insulin resistance. Little is known about the brain LDs. OBJECTIVES: We hypothesized that hypothalamic LDs would be altered in metabolic diseases. METHODS: We used immunofluorescence labeling of the specific LD protein, PLIN2, as the approach to visualize and quantify LDs. RESULTS: LDs were abundant in the hypothalamic third ventricle wall layer with similar heterogeneous distributions between control mice and humans. The LD content was enhanced by high-fat diet (HFD) in both wild-type and in low-density lipoprotein receptor deficient (Ldlr -/- HFD) mice. Strikingly, we observed a lower LD amount in type 2 diabetes mellitus (T2DM) patients when compared with non-T2DM patients. CONCLUSIONS: LDs accumulate in the normal hypothalamus, with similar distributions in human and mouse. Moreover, metabolic diseases differently modify LD content in mouse and human. Our results suggest that hypothalamic LD accumulation is an important target to the study of metabolism. CI - (c) 2020 The Author(s) Published by S. Karger AG, Basel. FAU - Maya-Monteiro, Clarissa Menezes AU - Maya-Monteiro CM AD - Laboratory of Immunopharmacology, Instituto Oswaldo Cruz, Fundacao Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil, clarissamayam@gmail.com. AD - Laboratory of Endocrinology and Department of Endocrinology and Metabolism, Amsterdam Neuroscience, Amsterdam University Medical Centers (UMC), University of Amsterdam, Amsterdam, The Netherlands, clarissamayam@gmail.com. AD - Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands, clarissamayam@gmail.com. FAU - Correa-da-Silva, Felipe AU - Correa-da-Silva F AD - Laboratory of Endocrinology and Department of Endocrinology and Metabolism, Amsterdam Neuroscience, Amsterdam University Medical Centers (UMC), University of Amsterdam, Amsterdam, The Netherlands. FAU - Hofmann, Susanna S AU - Hofmann SS AD - Institute for Diabetes and Regeneration, Helmholtz Diabetes Center, Helmholtz Zentrum Munchen, German Research Center for Environmental Health (GmbH), Neuherberg, Germany. FAU - Hesselink, Matthijs K C AU - Hesselink MKC AD - Department of Nutrition and Movement Sciences, Maastricht University Medical Centre+ and NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands. FAU - la Fleur, Susanne E AU - la Fleur SE AD - Laboratory of Endocrinology and Department of Endocrinology and Metabolism, Amsterdam Neuroscience, Amsterdam University Medical Centers (UMC), University of Amsterdam, Amsterdam, The Netherlands. AD - Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands. FAU - Yi, Chun-Xia AU - Yi CX AD - Laboratory of Endocrinology and Department of Endocrinology and Metabolism, Amsterdam Neuroscience, Amsterdam University Medical Centers (UMC), University of Amsterdam, Amsterdam, The Netherlands. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200518 PL - Switzerland TA - Neuroendocrinology JT - Neuroendocrinology JID - 0035665 RN - 0 (PLIN2 protein, human) RN - 0 (Perilipin-2) RN - 0 (Receptors, LDL) SB - IM MH - Aged MH - Aged, 80 and over MH - Animals MH - Autopsy MH - Diabetes Mellitus, Type 2/*metabolism MH - Diet, High-Fat MH - Disease Models, Animal MH - Female MH - Humans MH - Hypothalamus/*metabolism MH - Insulin Resistance/*physiology MH - Lipid Droplets/*metabolism MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Perilipin-2/*metabolism MH - Receptors, LDL/deficiency MH - Tissue Banks OTO - NOTNLM OT - Hypothalamus OT - Insulin resistance OT - Lipid droplet OT - PLIN2 OT - Type 2 diabetes mellitus EDAT- 2020/05/19 06:00 MHDA- 2021/10/28 06:00 CRDT- 2020/05/19 06:00 PHST- 2019/11/14 00:00 [received] PHST- 2020/05/15 00:00 [accepted] PHST- 2020/05/19 06:00 [pubmed] PHST- 2021/10/28 06:00 [medline] PHST- 2020/05/19 06:00 [entrez] AID - 000508735 [pii] AID - 10.1159/000508735 [doi] PST - ppublish SO - Neuroendocrinology. 2021;111(3):263-272. doi: 10.1159/000508735. Epub 2020 May 18.