Dataset Information

Proteome characterization of glaucoma aqueous humour

ABSTRACT: This work describes a proteomic analysis for different types of glaucoma (PACG, NVG) and age-related cataract as control. The AH samples were recruited from 175 individual patients with PACG, NVG and age-related cataract. First, in discovery cohort the AH proteome characteristics of PAACG, PCACG and NVG with cataract were compared by DIA approach. Second, AH proteomic features of three types of glaucoma, PAACG, PCACG and NVG, were mutually compared. In validation cohort the key proteins of above comparison were validated by PRM approach.

ORGANISM(S): Homo Sapiens

SUBMITTER: Wei Sun

PROVIDER: PXD027686 | iProX | Mon Aug 02 00:00:00 BST 2021

REPOSITORIES: iProX

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Proteome Characterization of Glaucoma Aqueous Humor.

Liu Xiaoyan X Liu Xiang X Wang Ying Y Sun Haidan H Guo Zhengguang Z Tang Xiaoyue X Li Jing J Xiao Xiaolian X Zheng Shuxin S Yu Mengxi M He Chengyan C Xu Jiyu J Sun Wei W

Molecular & cellular proteomics : MCP 20210630

Glaucoma is the leading cause of irreversible blindness worldwide. The proteome characterization of glaucoma is not clearly understood. A total of 175 subjects, including 57 primary acute angle-closure glaucoma (PAACG), 50 primary chronic angle-closure glaucoma (PCACG), 35 neovascular glaucoma (NVG), and 33 cataract patients, were enrolled and comparison proteomic analysis was provided. The samples were randomly divided into discovery group or validation group, whose aqueous humor proteome was a ...[more]

PMID: 34214668

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Project description:BACKGROUND: Alcohol-related liver disease ranges from silent alcoholic steatohepatitis (sASH), an asymptomatic and compensated phenotype, to life- threatening alcoholic hepatitis (AH). A systematic comparative study of the clinical, histological and molecular features of these subtypes is lacking. METHODS : Two large cohorts of patients were recruited in an international, observational multi-center study: a retrospective cohort of patients with sASH (n=110) and a prospective cohort of patients with AH (two subgroups with n=121 and 104). sASH and AH were compared by doing clinical, analytical, immunohistochemistry and hepatic RNA microarray analysis. FINDINGS: Age and mean alcohol intake were similar in patients with sASH vs AH. AH showed lower mean arterial pressure than sASH. AH patients had greater aspartate amino transferase/alanine amino transferase ratio and lower gamma- glutamyl transferase levels than AH. Individuals with AH demonstrated profound liver failure, lower blood pressure and increased mortality. Histologically, the grade of steatosis, ballooning and pericellular fibrosis were similar in both groups, while advanced fibrosis, Mallory-Denk bodies, bilirubinostasis, severe neutrophil infiltration and progenitor cell expansion were more frequent among AH patients. One-year mortality was 10% in sASH and 50% in AH. Transcriptome analysis revealed a profound gene dysregulation within both phenotypes when compare to controls. Globally, AH patients exhibited changes in 4,921 genes, while the number of dysregulated genes in sASH patients was less pronounced -1,327-. While sASH was characterized by deregulated expression of genes involved in matrisome and immune response, the development of AH resulted in a marked deregulation of genes involved in hepatocyte reprogramming and bile acid metabolism. INTERPRETATION: Despite comparable daily alcohol intake, AH patients presented with worse liver function and hemodynamic status compared to sASH. Bilirubinostasis, severe fibrosis and progenitor cell expansion were prominent features of AH. AH patients exhibited a more profound deregulation of gene expression compared to sASH.

Dataset Information

Proteome characterization of glaucoma aqueous humour

Publications

Proteome Characterization of Glaucoma Aqueous Humor.

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