PMID- 36512295 OWN - NLM STAT- MEDLINE DCOM- 20230404 LR - 20230414 IS - 1573-6903 (Electronic) IS - 0364-3190 (Linking) VI - 48 IP - 5 DP - 2023 May TI - Apelin-13 Improves Cognitive Impairment and Repairs Hippocampal Neuronal Damage by Activating PGC-1alpha/PPARgamma Signaling. PG - 1504-1515 LID - 10.1007/s11064-022-03844-1 [doi] AB - Alzheimer's disease (AD) is a complex neurodegenerative disease that is prevalent around the world. Both Apelin-13 and proliferator-activated receptor-gamma (PPARgamma)/PPARgamma co-activator 1alpha (PGC-1alpha) are regarded as candidate targets for treating AD. The investigation examined whether Apelin-13 exerts neuroprotective effects via PGC-1alpha/PPARgamma signaling. In this study, Apelin-13 improved cognitive deficits in AD mice, while SR-18,292 (a PGC-1alpha inhibitor) interfered with the therapeutic effects of Apelin-13. Mechanistically, Apelin-13, PGC-1alpha and PPARgamma were decreased in AD mice and oxygen-glucose deprivation (OGD)-induced neuronal cells. Apelin-13 bound to PGC-1alpha and negatively regulated the expression of PGC-1alpha and PPARgamma. In turn, PGC-1alpha accelerated the accumulation of Apelin-13 and PPARgamma. Additionally, neuronal apoptosis was inhibited, and the abundance of apoptosis-related proteins (Bax, Bcl-2, and cleaved caspase 3) was induced. The content of reactive oxygen species (ROS), malondialdehyde (MDA) and superoxide dismutase (SOD) fluctuated. The level of inflammatory factors (interleukin-6, IL-6, IL-10, tumor necrosis factor-alpha, TNF-alpha) was regulated. In short, Apelin-13 exerted anti-apoptosis, anti-oxidant stress and anti-inflammatory effects. Interestingly, PGC-1alpha silencing promoted neuronal apoptosis, oxidant stress and inflammation, and overexpression of PGC-1alpha exhibited the opposite. More importantly, inhibition of PGC-1alpha attenuated Apelin-13-enhanced cognitive impairment and neuronal damage. Therefore, our findings suggested that Apelin-13 exerted neuroprotective effects in part via the PGC-1alpha/PPARgamma pathway. CI - (c) 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Chen, Bin AU - Chen B AD - Department of Neurology, the Second Affiliated Hospital of Hainan Medical University, 570216, Haikou, China. AD - Hainan Medical University, 571199, Haikou, China. AD - Key Laboratory of Brain Science Research & Transformation In Tropical Environment of Hainan Province, 571199, Haikou, China. AD - International Center for Aging and Cancer (ICAC), 571199, Haikou, China. FAU - Wu, Jingwei AU - Wu J AD - Department of Radiology, the Second Affiliated Hospital of Hainan Medical University, 570216, Haikou, China. FAU - Hu, Sheng AU - Hu S AD - Department of Neurology, the Second Affiliated Hospital of Hainan Medical University, 570216, Haikou, China. AD - Hainan Medical University, 571199, Haikou, China. FAU - Liu, Qingli AU - Liu Q AD - Department of Neurology, the Second Affiliated Hospital of Hainan Medical University, 570216, Haikou, China. AD - Hainan Medical University, 571199, Haikou, China. FAU - Yang, Hui AU - Yang H AD - Department of Neurology, the Second Affiliated Hospital of Hainan Medical University, 570216, Haikou, China. AD - Hainan Medical University, 571199, Haikou, China. FAU - You, Yong AU - You Y AD - Department of Neurology, the Second Affiliated Hospital of Hainan Medical University, 570216, Haikou, China. youyong@hainmc.edu.cn. AD - Hainan Medical University, 571199, Haikou, China. youyong@hainmc.edu.cn. AD - Key Laboratory of Brain Science Research & Transformation In Tropical Environment of Hainan Province, 571199, Haikou, China. youyong@hainmc.edu.cn. AD - International Center for Aging and Cancer (ICAC), 571199, Haikou, China. youyong@hainmc.edu.cn. LA - eng GR - ZDYF2022SHFZ066/Hainan research and development project/ GR - 821MS0834/Hainan Natural Science Foundation Project/ PT - Journal Article DEP - 20221213 PL - United States TA - Neurochem Res JT - Neurochemical research JID - 7613461 RN - 0 (apelin-13 peptide) RN - 0 (PPAR gamma) RN - 0 (Neuroprotective Agents) RN - 0 (Antioxidants) RN - 0 (Carrier Proteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha) SB - IM EIN - Neurochem Res. 2023 Jan 4;:. PMID: 36598662 MH - Mice MH - Animals MH - PPAR gamma/metabolism MH - *Neurodegenerative Diseases MH - *Neuroprotective Agents/pharmacology/therapeutic use MH - Antioxidants MH - Carrier Proteins/metabolism MH - Tumor Necrosis Factor-alpha/metabolism MH - Hippocampus/metabolism MH - *Cognitive Dysfunction/drug therapy MH - Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/metabolism OTO - NOTNLM OT - Alzheimer's disease OT - Apelin-13 OT - PGC-1alpha/PPARgamma OT - cognitive dysfunction OT - neuronal damage EDAT- 2022/12/14 06:00 MHDA- 2023/04/04 06:42 CRDT- 2022/12/13 11:23 PHST- 2022/09/20 00:00 [received] PHST- 2022/12/07 00:00 [accepted] PHST- 2022/11/30 00:00 [revised] PHST- 2023/04/04 06:42 [medline] PHST- 2022/12/14 06:00 [pubmed] PHST- 2022/12/13 11:23 [entrez] AID - 10.1007/s11064-022-03844-1 [pii] AID - 10.1007/s11064-022-03844-1 [doi] PST - ppublish SO - Neurochem Res. 2023 May;48(5):1504-1515. doi: 10.1007/s11064-022-03844-1. Epub 2022 Dec 13.