PMID- 36645408 OWN - NLM STAT- MEDLINE DCOM- 20230202 LR - 20230322 IS - 2050-084X (Electronic) IS - 2050-084X (Linking) VI - 12 DP - 2023 Jan 16 TI - Exploring therapeutic strategies for infantile neuronal axonal dystrophy (INAD/PARK14). LID - 10.7554/eLife.82555 [doi] LID - e82555 AB - Infantile neuroaxonal dystrophy (INAD) is caused by recessive variants in PLA2G6 and is a lethal pediatric neurodegenerative disorder. Loss of the Drosophila homolog of PLA2G6, leads to ceramide accumulation, lysosome expansion, and mitochondrial defects. Here, we report that retromer function, ceramide metabolism, the endolysosomal pathway, and mitochondrial morphology are affected in INAD patient-derived neurons. We show that in INAD mouse models, the same features are affected in Purkinje cells, arguing that the neuropathological mechanisms are evolutionary conserved and that these features can be used as biomarkers. We tested 20 drugs that target these pathways and found that Ambroxol, Desipramine, Azoramide, and Genistein alleviate neurodegenerative phenotypes in INAD flies and INAD patient-derived neural progenitor cells. We also develop an AAV-based gene therapy approach that delays neurodegeneration and prolongs lifespan in an INAD mouse model. CI - (c) 2023, Lin et al. FAU - Lin, Guang AU - Lin G AUID- ORCID: 0000-0001-5594-3397 AD - Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, United States. AD - Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, United States. FAU - Tepe, Burak AU - Tepe B AUID- ORCID: 0000-0003-4371-2502 AD - Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, United States. AD - Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, United States. FAU - McGrane, Geoff AU - McGrane G AD - New York Stem Cell Foundation Research Institute, New York, United States. FAU - Tipon, Regine C AU - Tipon RC AUID- ORCID: 0000-0002-5473-7353 AD - New York Stem Cell Foundation Research Institute, New York, United States. FAU - Croft, Gist AU - Croft G AD - New York Stem Cell Foundation Research Institute, New York, United States. FAU - Panwala, Leena AU - Panwala L AD - INADcure Foundation, Jersey City, United States. FAU - Hope, Amanda AU - Hope A AD - INADcure Foundation, Jersey City, United States. FAU - Liang, Agnes J H AU - Liang AJH AD - Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, United States. AD - Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, United States. FAU - Zuo, Zhongyuan AU - Zuo Z AD - Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, United States. AD - Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, United States. FAU - Byeon, Seul Kee AU - Byeon SK AD - Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, United States. FAU - Wang, Lily AU - Wang L AD - Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, United States. AD - Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, United States. FAU - Pandey, Akhilesh AU - Pandey A AUID- ORCID: 0000-0001-9943-6127 AD - Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, United States. AD - Manipal Academy of Higher Education, Manipal, Karnataka, India. FAU - Bellen, Hugo J AU - Bellen HJ AUID- ORCID: 0000-0001-5992-5989 AD - Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, United States. AD - Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, United States. AD - Department of Neuroscience, Baylor College of Medicine, Houston, United States. LA - eng GR - P50 HD103555/HD/NICHD NIH HHS/United States GR - P50HD103555/NH/NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20230116 PL - England TA - Elife JT - eLife JID - 101579614 RN - 0 (Ceramides) RN - EC 3.1.1.4 (Pla2g6 protein, mouse) RN - EC 3.1.1.4 (Group VI Phospholipases A2) RN - 0 (inaD protein, Drosophila) RN - 0 (Eye Proteins) RN - 0 (Drosophila Proteins) RN - Dystonia-Parkinsonism, Adult-Onset SB - IM MH - Mice MH - Animals MH - Neurons/metabolism MH - *Parkinsonian Disorders/metabolism MH - Drosophila/metabolism MH - Ceramides/metabolism MH - *Neuroaxonal Dystrophies/genetics/metabolism/pathology MH - Group VI Phospholipases A2/metabolism MH - Eye Proteins/metabolism MH - *Drosophila Proteins/genetics/metabolism PMC - PMC9889087 OTO - NOTNLM OT - INAD OT - Parkinson's disease OT - adeno-associated virus OT - ceramides OT - dopaminergic neurons OT - drosophila OT - drug screen OT - gene therapy OT - ipsc OT - lysosome OT - mice OT - neural progenitor cells OT - neuroscience COIS- GL, BT, GM, RT, GC, LP, AH, AL, ZZ, SB, LW, AP No competing interests declared, HB Reviewing editor, eLife EDAT- 2023/01/17 06:00 MHDA- 2023/02/03 06:00 PMCR- 2023/01/16 CRDT- 2023/01/16 10:52 PHST- 2022/08/09 00:00 [received] PHST- 2023/01/15 00:00 [accepted] PHST- 2023/01/17 06:00 [pubmed] PHST- 2023/02/03 06:00 [medline] PHST- 2023/01/16 10:52 [entrez] PHST- 2023/01/16 00:00 [pmc-release] AID - 82555 [pii] AID - 10.7554/eLife.82555 [doi] PST - epublish SO - Elife. 2023 Jan 16;12:e82555. doi: 10.7554/eLife.82555.