Kim, Hye-Jung Ahn, Seong Joon Woo, Se Joon Hong, Hye Kyoung Suh, Eui Jin Ahn, Jeeyun Park, Ji Hyun Ryoo, Na-Kyung Lee, Ji Eun Kim, Ki Woong Park, Kyu Hyung Lee, Cheolju 2024-01-20T03:31:35Z 2024-01-20T03:31:35Z 2021-09-05 2016-09-08 2045-2322 https://pubs.kist.re.kr/handle/201004/123683 Age-related macular degeneration (AMD) is a major cause of severe, progressive visual loss among the elderly. There are currently no established serological markers for the diagnosis of AMD. In this study, we carried out a large-scale quantitative proteomics analysis to identify plasma proteins that could serve as potential AMD biomarkers. We found that the plasma levels of phospholipid transfer protein (PLTP) and mannan-binding lectin serine protease (MASP)-1 were increased in AMD patients relative to controls. The receiver operating characteristic curve based on data from an independent set of AMD patients and healthy controls had an area under the curve of 0.936 for PLTP and 0.716 for MASP-1, revealing excellent discrimination between the two groups. A proteogenomic combination model that incorporated PLTP and MASP-1 along with two known risk genotypes of age-related maculopathy susceptibility 2 and complement factor H genes further enhanced discriminatory power. Additionally, PLTP and MASP-1 mRNA and protein expression levels were upregulated in retinal pigment epithelial cells upon exposure to oxidative stress in vitro. These results indicate that PLTP and MASP-1 can serve as plasma biomarkers for the early diagnosis and treatment of AMD, which is critical for preventing AMD-related blindness. English NATURE PUBLISHING GROUP HIGH-DENSITY-LIPOPROTEINS PATHWAY ACTIVATION MASP-1 EXPRESSION HEALTH IMPACT PLTP Proteomics-based identification and validation of novel plasma biomarkers phospholipid transfer protein and mannan-binding lectin serine protease-1 in age-related macular degeneration Article 10.1038/srep32548 1 SCIENTIFIC REPORTS, v.6 SCIENTIFIC REPORTS 6 scie scopus 000382637700001 2-s2.0-84986634187 Multidisciplinary Sciences Science & Technology - Other Topics Article HIGH-DENSITY-LIPOPROTEINS PATHWAY ACTIVATION MASP-1 EXPRESSION HEALTH IMPACT PLTP Age-related macular degeneration (AMD) plasma proteins biomarkers quantitative proteomics analysis