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Published in: Reproductive Biology and Endocrinology 1/2021

Open Access 01-12-2021 | Hypertension | Research

Serum complement proteomics reveal biomarkers for hypertension disorder of pregnancy and the potential role of Clusterin

Authors: Shanshui Zeng, Mengru Han, Min Jiang, Fei Liu, Yanwei Hu, Yan Long, Chunyan Zhu, Fangling Zeng, Qiangsheng Gan, Weitao Ye, Wenjin Fu, Hongling Yang

Published in: Reproductive Biology and Endocrinology | Issue 1/2021

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Abstract

Introduction

Hypertension disorder of pregnancy (HDP) is one of the leading causes of maternal and foetal illness. The aim of the current study was to identify and verify novel serum markers for HDP.

Methods

A label-free LC-MS/MS method was used to establish the serum proteomic profiles of 12 pre-HDP (before clinical diagnosis of HDP) pregnancies and verify prioritized candidates in the verification set of 48 pre-HDP pregnancies. These biomarkers were revalidated by ELISA in an independent cohort of 88 pre-HDP pregnancies. Subsequently, the candidate biomarkers were histologically analysed by immunohistochemistry, and function was evaluated in TEV-1 cells.

Results

We identified 33 proteins with significantly increased abundance and 14 with decreased abundance (peptide FDR ≤ 1%, P < 0.05). Complement was one of the top enriched components in the pre-HDP group compared with the control group. Three complement factors (CLU, CFHR5, and CRP) were significantly increased in the three sets, of which CLU was a critical factor for the development of HDP (OR = 1.22, P < 0.001). When these three factors and body weight were combined, the AUC was 0.74, with a sensitivity of 0.67 and specificity of 0.68 for HDP prediction compared with normal pregnancy. In addition, inflammation-induced CLU could inhibit the invasion of TEV-1 cells.

Conclusions

Complement proteins may play an essential role in the occurrence of HDP by acting on trophoblast cells. CLU may be a high-risk factor for HDP, and the models combining candidates show reasonable screening efficiency of HDP in the first half of pregnancy.
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Metadata
Title
Serum complement proteomics reveal biomarkers for hypertension disorder of pregnancy and the potential role of Clusterin
Authors
Shanshui Zeng
Mengru Han
Min Jiang
Fei Liu
Yanwei Hu
Yan Long
Chunyan Zhu
Fangling Zeng
Qiangsheng Gan
Weitao Ye
Wenjin Fu
Hongling Yang
Publication date
01-12-2021
Publisher
BioMed Central
Published in
Reproductive Biology and Endocrinology / Issue 1/2021
Electronic ISSN: 1477-7827
DOI
https://doi.org/10.1186/s12958-021-00742-z

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