PMID- 36388134 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221119 IS - 2666-3546 (Electronic) IS - 2666-3546 (Linking) VI - 26 DP - 2022 Dec TI - Miltefosine as a PPM1A activator improves AD-like pathology in mice by alleviating tauopathy via microglia/neurons crosstalk. PG - 100546 LID - 10.1016/j.bbih.2022.100546 [doi] LID - 100546 AB - Alzheimer's disease (AD) is a progressively neurodegenerative disease without effective treatment. Here, we reported that the levels of expression and enzymatic activity of phosphatase magnesium-dependent 1A (PPM1A) were both repressed in brains of AD patient postmortems and 3 x Tg-AD mice, and treatment of adeno-associated virus (AAV)-ePHP-overexpression (OE)-PPM1A for brain-specific PPM1A overexpression or the new discovered PPM1A activator Miltefosine (MF, FDA approved oral anti-leishmanial drug) for PPM1A enzymatic activation improved the AD-like pathology in 3 x Tg-AD mice. The mechanism was intensively investigated by assay against the 3 x Tg-AD mice with brain-specific PPM1A knockdown (KD) through AAV-ePHP-KD-PPM1A injection. MF alleviated neuronal tauopathy involving microglia/neurons crosstalk by both promoting microglial phagocytosis of tau oligomers via PPM1A/Nuclear factor-kappab (NF-kappaB)/C-X3-C Motif Chemokine Receptor 1 (CX3CR1) signaling and inhibiting neuronal tau hyperphosphorylation via PPM1A/NLR Family Pyrin Domain Containing 3 (NLRP3)/tau axis. MF suppressed microglial NLRP3 inflammasome activation by both inhibiting NLRP3 transcription via PPM1A/NF-kappaB/NLRP3 pathway in priming step and promoting PPM1A binding to NLRP3 to interfere NLRP3 inflammasome assembly in assembly step. Our results have highly addressed that PPM1A activation shows promise as a therapeutic strategy for AD and highlighted the potential of MF in treating this disease. CI - (c) 2022 The Authors. FAU - Lv, Jianlu AU - Lv J AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. AD - College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China. FAU - Shen, Xingyi AU - Shen X AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. FAU - Shen, Xinya AU - Shen X AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. FAU - Li, Xiaoqian AU - Li X AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. FAU - Jin, Zhuoying AU - Jin Z AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. FAU - Ouyang, Xingnan AU - Ouyang X AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. FAU - Lu, Jian AU - Lu J AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. FAU - Zhu, Danyang AU - Zhu D AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. FAU - Wang, Jiaying AU - Wang J AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. FAU - Shen, Xu AU - Shen X AD - Jiangsu Key Laboratory of Drug Target and Drug for Degenerative Diseases, Nanjing University of Chinese Medicine, Nanjing, 210023, China. AD - National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing, 210023, China. LA - eng PT - Journal Article DEP - 20221029 PL - United States TA - Brain Behav Immun Health JT - Brain, behavior, & immunity - health JID - 101759062 PMC - PMC9650016 OTO - NOTNLM OT - AAV, Adeno-associated virus OT - AD, Alzheimer's disease OT - ALP, Alkaline phosphatase OT - ALT, Alanine aminotransferase OT - AST, Aspartate aminotransferase OT - Akt, V-akt routine thymoma viral oncogene homolog OT - Alzheimer's disease OT - Abeta, Amyloid-beta OT - CDK5, Cyclin-dependent protein kinase-5 OT - CNS, Central nervous system OT - CX3CR1 OT - CX3CR1, C-X3-C Motif Chemokine Receptor 1 OT - CaMKII, Calcium/calmodulin-dependent protein kinase II OT - DYRK1A, Dual-specificity tyrosine phosphorylation-regulated kinase-1A OT - GSK3beta, Glycogen synthase kinase 3beta OT - LTP, Long-term potentiation OT - MST, Microscale thermophoresis OT - MWM, Morris water maze OT - Miltefosine OT - NF-kB, Nuclear factor-kappab OT - NFTs, Neurofibrillary tangles OT - NLRP3 OT - NLRP3, Nod-like receptor protein 3 OT - NOR, New object recognition OT - PP2, Protein phosphatase 2 OT - PPM1A OT - PPM1A, Phosphatase magnesium-dependent 1A OT - PSD95, Postsynaptic density protein 95 OT - SYN, Synaptophysin OT - Tauopathy OT - fEPSPs, Field excitatory postsynaptic potentials COIS- The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/11/18 06:00 MHDA- 2022/11/18 06:01 PMCR- 2022/10/29 CRDT- 2022/11/17 12:07 PHST- 2022/06/16 00:00 [received] PHST- 2022/10/10 00:00 [revised] PHST- 2022/10/23 00:00 [accepted] PHST- 2022/11/17 12:07 [entrez] PHST- 2022/11/18 06:00 [pubmed] PHST- 2022/11/18 06:01 [medline] PHST- 2022/10/29 00:00 [pmc-release] AID - S2666-3546(22)00136-3 [pii] AID - 100546 [pii] AID - 10.1016/j.bbih.2022.100546 [doi] PST - epublish SO - Brain Behav Immun Health. 2022 Oct 29;26:100546. doi: 10.1016/j.bbih.2022.100546. eCollection 2022 Dec.