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Ecto-GPR37:a potential biomarker for Parkinson’s disease

Translational Neurodegeneration 2021年第1期10卷 77-90页

作者： Xavier Morato Paula Garcia-Esparcia josep argerich Franc Llorens Inga Zerr Wojciech Paslawski Eva Borras Eduard Sabido Ulla EPetaja-Repo Victor Fernandez-Duenas Isidro Ferrer Per Svenningsson Francisco Ciruela Pharm acology Unit Department of Pathology and Experimental TherapeuticsFaculty of Medicine and Health SciencesInstitute of NeurosciencesUniversity of BarcelonaUHospitalet de LlobregatSpain Neuroscience Program Bellvitge Biomedical Research InstituteIDIBELLL'Hospitalet de LlobregatSpain Section of Neurology Department of Clinical NeuroscienceDepartm ent of NeuroscienceKarolinska InstituteStockholmSweden Neuropathology Unit Departm ent of Pathology and Experimental TherapeuticsFaculty of Medicine and Health SciencesInstitute of NeurosciencesUniversity of BarcelonaL'Hospitalet de LlobregatSpain CIBERNED Centro de Investigacion Biomedica en Red de Enfermedades NeurodegenerativasInstituto CarlosⅢMadridSpain Department of Neurology Clinical Dementia Center and National Reference Center for CID SurveillanceUniversity Medical SchoolGottingenGermany German Center for Neurodegenerative Diseases GottingenGermany Proteomics Unit Center for Genomic RegulationBarcelonaSpain Proteomics Unit Universitat Pompeu FabraBarcelonaSpain Research Unit of Biomedicine Medical Research Center OuluUniversity of OuluOuluFinland

Objective:a-Synuclein has been studied as a potential biomarker for Parkinson's disease(PD)with no concluding ***,there is an urgent need to find out reliable specific biomarkers for ***37 is an orphan G protein-coupled receptor that toxically accumulates in autosomal recessive juvenile ***,we investigated whether GPR37 is upregulated in sporadic PD,and thus a suitable potential biomarker for ***:GPR37 protein density and mRNA expression in postmortem substantia nigra(SN)from PD patients were analysed by immunoblot and RT-qPCR,*** presence of peptides from the N-terminus-cleaved domain of GPR37(***-GPR37)in human cerebrospinal fluid(CSF)was determined by liquid chromatography-mass spectrometric *** engineered in-house nanoluciferase-based immunoassay was used to quantify ecto-GPR37 in CSF samples from neurological control(NC)subjects,PD patients and Alzheimer's disease(AD)***:GPR37 protein density and mRNA expression were significantly augmented in sporadic *** amounts of ecto-GPR37 peptides in the CSF samples from PD patients were identified by mass spectrometry and quantified by the in-house ELISA ***,the CSF total a-synuclein level in PD patients did not differ from that in NC ***,the cortical GPR37 mRNA expression and CSF ecto-GPR37 levels in AD patients were also ***:GPR37 expression is increased in SN of sporadic PD *** ecto-GPR37 peptides are significantly increased in the CSF of PD patients,but not in AD *** results open perspectives and encourage further clinical studies to confirm the validity and utility of ecto-GPR37 as a potential PD biomarker.

关键词： GPR37 Pael-R Parkinson's disease Cerebrospinal fluid Biomarker Alzheimer's disease a-5ynuclein Orphan receptor

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