Matricellular Proteins Play a Potential Role in Acute Primary Angle Closure.

Abstract:

PURPOSE:To quantify levels of matricellular proteins in aqueous humor samples from acute primary angle closure (APAC) and non-glaucomatous cataract eyes and investigate their correlation with intraocular pressure (IOP) fluctuation. MATERIALS AND METHODS:Aqueous humor samples were collected from 63 eyes including 29 current APAC eyes, 12 previous APAC eyes, and 22 cataract eyes. Concentrations of four main matricellular proteins (SPARC, tenascin-C, thrombospondin-2, and osteopontin) were measured using multiplexed immunoassay kits. Correlations between matricellular proteins and age, sex, and IOP were then detected using Spearman's rank correlation coefficient. RESULTS:The levels of SPARC, thrombospondin-2, and osteopontin were significantly elevated in the APAC group as compared to the cataract group (p < 0.001, p < 0.001, and p = 0.009, respectively). Further separation of the APAC group into current and previous APAC groups showed that only the differences of SPARC and thrombospondin-2 between the current APAC and cataract groups were significant (both p < 0.001). All four matricellular proteins were found to have a positive correlation with IOP in the current APAC group but no correlation was found in the previous APAC or cataract groups. CONCLUSIONS:The levels of matricellular proteins were significantly elevated in the current APAC eyes and positively correlated to IOP. Further studies are necessary to investigate the molecular mechanisms and histological evidence of pathogenesis in matricellular proteins in APAC.

journal_name

Curr Eye Res

journal_title

Current eye research

authors

Wang J,Fu M,Liu K,Wang N,Zhang Z,Zhou M,Xu X

doi

10.1080/02713683.2018.1449222

subject

Has Abstract

pub_date

2018-06-01 00:00:00

pages

771-777

issue

6

eissn

0271-3683

issn

1460-2202

journal_volume

43

pub_type

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