Youn, Jinyoung Lee, Sang-Bin Lee, Hyo Sang Yang, Hyun Ok Park, Jinse Kim, Ji Sun Oh, Eungseok Park, Suyeon Jang, Wooyoung 2024-01-19T21:30:50Z 2024-01-19T21:30:50Z 2021-09-05 2018-11-15 2045-2322 https://pubs.kist.re.kr/handle/201004/120677 The roles of autophagy-related proteins as diagnostic or monitoring biomarkers in Parkinson's disease (PD) have not been clearly elucidated. We recruited 32 patients with early-stage PD and 28 control subjects, and evaluated parkinsonian motor symptoms and dopamine transporter imaging data. Cerebrospinal fluid (CSF) levels of LC3B, Beclinl, and LAMP-2 were estimated using ELISAs, and CSF levels of ATG5, ATG7, and p62 were examined by immunoblotting. Additionally, we also assessed the levels of alpha-synuclein, total tau, and phosphorylated tau in CSF using ELISAs. Significant differences in the levels of LC3B, LAMP-2, and Beclinl were observed between the PD and control groups. Using 29.8 pg/mL as the cut-off value for a diagnostic biomarker of PD, CSF LC3B levels exhibited high sensitivity (96.9%) and specificity (89.3%) with an area under the curve of 0.982. Furthermore, LC3B was significantly correlated with the asymmetry index in the caudate and putamen, as estimated by a semi-quantitative analysis of [F-18] N-(3-fluoropropyI)-2 beta-carbon ethoxy-3 beta-(4-iodophenyl) nortropane (FP-CIT) positron emission tomography (PET). CSF levels of LC3B represented a potential diagnostic and prognostic biomarker of early-stage PD in patients. Based on our findings, molecular biological changes in PD are associated with dysregulation of the lysosomal autophagy pathway. English NATURE PUBLISHING GROUP ALPHA-SYNUCLEIN LEVELS STRIATAL ASYMMETRY INDEX MULTIPLE-SYSTEM ATROPHY NONMOTOR SYMPTOMS ALZHEIMERS-DISEASE KOREAN-VERSION AMYLOID-BETA LEWY BODIES DRUG-NAIVE T-TAU Cerebrospinal Fluid Levels of Autophagy-related Proteins Represent Potentially Novel Biomarkers of Early-Stage Parkinson's Disease Article 10.1038/s41598-018-35376-6 1 SCIENTIFIC REPORTS, v.8 SCIENTIFIC REPORTS 8 scie scopus 000450167700037 2-s2.0-85056641694 Multidisciplinary Sciences Science & Technology - Other Topics Article ALPHA-SYNUCLEIN LEVELS STRIATAL ASYMMETRY INDEX MULTIPLE-SYSTEM ATROPHY NONMOTOR SYMPTOMS ALZHEIMERS-DISEASE KOREAN-VERSION AMYLOID-BETA LEWY BODIES DRUG-NAIVE T-TAU Cerebrospinal Fluid Autophagy Parkinson&apos disease