PMID- 37994388 OWN - NLM STAT- MEDLINE DCOM- 20240216 LR - 20240216 IS - 1474-9726 (Electronic) IS - 1474-9718 (Print) IS - 1474-9718 (Linking) VI - 23 IP - 2 DP - 2024 Feb TI - Cpt1a silencing in AgRP neurons improves cognitive and physical capacity and promotes healthy aging in male mice. PG - e14047 LID - 10.1111/acel.14047 [doi] LID - e14047 AB - Orexigenic neurons expressing agouti-related protein (AgRP) and neuropeptide Y in the arcuate nucleus (ARC) of the hypothalamus are activated in response to dynamic variations in the metabolic state, including exercise. We previously observed that carnitine palmitoyltransferase 1a (CPT1A), a rate-limiting enzyme of mitochondrial fatty acid oxidation, is a key factor in AgRP neurons, modulating whole-body energy balance and fluid homeostasis. However, the effect of CPT1A in AgRP neurons in aged mice and during exercise has not been explored yet. We have evaluated the physical and cognitive capacity of adult and aged mutant male mice lacking Cpt1a in AgRP neurons (Cpt1a KO). Adult Cpt1a KO male mice exhibited enhanced endurance performance, motor coordination, locomotion, and exploration compared with control mice. No changes were observed in anxiety-related behavior, cognition, and muscle strength. Adult Cpt1a KO mice showed a reduction in gastrocnemius and tibialis anterior muscle mass. The cross-sectional area (CSA) of these muscles were smaller than those of control mice displaying a myofiber remodeling from type II to type I fibers. In aged mice, changes in myofiber remodeling were maintained in Cpt1a KO mice, avoiding loss of physical capacity during aging progression. Additionally, aged Cpt1a KO mice revealed better cognitive skills, reduced inflammation, and oxidative stress in the hypothalamus and hippocampus. In conclusion, CPT1A in AgRP neurons appears to modulate health and protects against aging. Future studies are required to clarify whether CPT1A is a potential antiaging candidate for treating diseases affecting memory and physical activity. CI - (c) 2023 The Authors. Aging Cell published by Anatomical Society and John Wiley & Sons Ltd. FAU - Ibeas, Kevin AU - Ibeas K AUID- ORCID: 0000-0002-9981-5669 AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain. AD - Centro de Investigacion Biomedica en Red de Fisiopatologia de la Obesidad y la Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain. FAU - Grinan-Ferre, Christian AU - Grinan-Ferre C AD - Department of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Centro de Investigacion en Red, Enfermedades Neurodegenerativas (CIBERNED, Instituto de Salud Carlos III, Madrid, Spain. FAU - Del Mar Romero, Maria AU - Del Mar Romero M AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain. AD - Centro de Investigacion Biomedica en Red de Fisiopatologia de la Obesidad y la Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain. FAU - Sebastian, David AU - Sebastian D AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Centro de Investigacion Biomedica en Red de Diabetes y Enfermedades Metabolicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain. FAU - Bastias-Perez, Marianela AU - Bastias-Perez M AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain. FAU - Gomez, Roberto AU - Gomez R AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain. FAU - Soler-Vazquez, M Carmen AU - Soler-Vazquez MC AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain. FAU - Zagmutt, Sebastian AU - Zagmutt S AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain. FAU - Pallas, Merce AU - Pallas M AUID- ORCID: 0000-0003-3095-4254 AD - Department of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Centro de Investigacion en Red, Enfermedades Neurodegenerativas (CIBERNED, Instituto de Salud Carlos III, Madrid, Spain. FAU - Castell, Margarida AU - Castell M AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Centro de Investigacion Biomedica en Red de Fisiopatologia de la Obesidad y la Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain. AD - Institut de Recerca en Nutricio i Seguretat Alimentaria (INSA-UB), Universitat de Barcelona, Santa Coloma de Gramenet, Spain. FAU - Belsham, Denise D AU - Belsham DD AD - Department of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, Ontario, Canada. FAU - Mera, Paula AU - Mera P AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain. FAU - Herrero, Laura AU - Herrero L AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain. AD - Centro de Investigacion Biomedica en Red de Fisiopatologia de la Obesidad y la Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain. FAU - Serra, Dolors AU - Serra D AUID- ORCID: 0000-0002-4936-4206 AD - Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain. AD - Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain. AD - Centro de Investigacion Biomedica en Red de Fisiopatologia de la Obesidad y la Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain. LA - eng GR - Grant CB06/03/0001/Biomedical Research Centre in Pathophysiology of Obesity and Nutrition (CIBEROBN)/ GR - PID2020-114953RB-C21/Ministerio de Ciencia e Innovacion/ PT - Journal Article DEP - 20231122 PL - England TA - Aging Cell JT - Aging cell JID - 101130839 RN - 0 (Agouti-Related Protein) RN - EC 2.3.1.21 (Carnitine O-Palmitoyltransferase) RN - EC 2.3.1.21 (CPT1B protein, mouse) SB - IM MH - Animals MH - Male MH - Mice MH - Agouti-Related Protein/genetics/metabolism MH - Arcuate Nucleus of Hypothalamus/metabolism MH - *Carnitine O-Palmitoyltransferase/genetics/metabolism MH - *Healthy Aging MH - Hypothalamus/metabolism MH - Neurons/metabolism PMC - PMC10861206 OTO - NOTNLM OT - AgRP neurons OT - CPT1A OT - aging OT - cognitive behavior OT - physical activity COIS- The authors have no conflicts of interest to disclose. EDAT- 2023/11/23 06:42 MHDA- 2024/02/13 00:42 PMCR- 2023/11/22 CRDT- 2023/11/23 04:13 PHST- 2023/11/08 00:00 [revised] PHST- 2023/06/05 00:00 [received] PHST- 2023/11/10 00:00 [accepted] PHST- 2024/02/13 00:42 [medline] PHST- 2023/11/23 06:42 [pubmed] PHST- 2023/11/23 04:13 [entrez] PHST- 2023/11/22 00:00 [pmc-release] AID - ACEL14047 [pii] AID - 10.1111/acel.14047 [doi] PST - ppublish SO - Aging Cell. 2024 Feb;23(2):e14047. doi: 10.1111/acel.14047. Epub 2023 Nov 22.