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Comprehensive immune complexome analysis detects disease-specific immune complex antigens in seminal plasma and follicular fluids derived from infertile men and women

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Title: Comprehensive immune complexome analysis detects disease-specific immune complex antigens in seminal plasma and follicular fluids derived from infertile men and women
Authors: Murakami, Naoko / Kitajima, Michio / Ohyama, Kaname / Aibara, Nozomi / Taniguchi, Ken / Wei, Mian / Kitajima, Yuriko / Miura, Kiyonori / Masuzaki, Hideaki
Issue Date: 31-May-2019
Publisher: Elsevier B.V.
Citation: Clinica Chimica Acta, 495, pp.545-551; 2019
Abstract: Background: Autoimmune reactions and subsequent inflammation may underlie spermatogenic dysfunction and endometriosis-related infertility.The aim of this study is to identify disease-specific antigens in immune complexes (ICs) in seminal plasma (SP) and in follicular fluid (FF). Methods: Immune complexome analysis, in which nano-liquid chromatography-tandem mass spectrometry is employed to comprehensively identify antigens incorporated into ICs in biological fluids, was performed for specimens collected from infertile couples undergoing assisted reproduction.Forty-two male patients consisting of subjects with oligozoospermia (n=6), asthenozoospermia (n=8), and normal semen analysis (n=28). Fifty-eight female patients consisting of subjects with ovarian endometriosis (n=10) and control women without disease (n=48). Results: Four disease-specific antigens were identified in subjects with oligozoospermia, while five disease-specific antigens were detected in subjects with asthenozoospermia, some of which are involved in sprematogenesis. Eight antigens were detected only in subjects with endometriosis. Conclusion: Functional characteristics of disease-specific antigens were found to correspond to the pathogenesis of male and female infertility. The formation of ICs may contribute to spermatogenic dysfunction and endometriosis-related infertility via loss of function of the related proteins. Immune complexome analysis is expected to be a valuable tool for the investigation of novel diagnostic methods and treatment strategies for infertility.
Keywords: immune complex antigen / immune complexome analysis / infertility / spermatogenic dysfunction / spermatogenic dysfunction / endometriosis
URI: http://hdl.handle.net/10069/39283
ISSN: 0009-8981
DOI: 10.1016/j.cca.2019.05.031
Rights: © 2019 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/39283

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