Zika virus infection of the placenta alters extracellular matrix proteome
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Published:2021-07-15
Issue:
Volume:
Page:
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ISSN:1567-2379
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Container-title:Journal of Molecular Histology
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language:en
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Short-container-title:J Mol Histol
Author:
Borges-Vélez GabrielORCID, Rosado-Philippi JulioORCID, Cantres-Rosario Yadira M.ORCID, Carrasquillo-Carrion Kelvin, Roche-Lima AbielORCID, Pérez-Vargas Jean, González-Martínez Andrea, Correa-Rivas María S., Meléndez Loyda M.ORCID
Abstract
AbstractZika virus (ZIKV) infection has been associated with fetal abnormalities by compromising placental integrity, but the mechanisms by which this occurs are unknown. Flavivirus can deregulate the host proteome, especially extracellular matrix (ECM) proteins. We hypothesize that a deregulation of specific ECM proteins by ZIKV, affects placental integrity. Using twelve different placental samples collected during the 2016 ZIKV Puerto Rico epidemic, we compared the proteome of five ZIKV infected samples with four uninfected controls followed by validation of most significant proteins by immunohistochemistry. Quantitative proteomics was performed using tandem mass tag TMT10plex™ Isobaric Label Reagent Set followed by Q Exactive™ Hybrid Quadrupole Orbitrap Mass Spectrometry. Identification of proteins was performed using Proteome Discoverer 2.1. Proteins were compared based on the fold change and p value using Limma software. Significant proteins pathways were analyzed using Ingenuity Pathway (IPA). TMT analysis showed that ZIKV infected placentas had 94 reviewed differentially abundant proteins, 32 more abundant, and 62 less abundant. IPA analysis results indicate that 45 of the deregulated proteins are cellular components of the ECM and 16 play a role in its structure and organization. Among the most significant proteins in ZIKV positive placenta were fibronectin, bone marrow proteoglycan, and fibrinogen. Of these, fibrinogen was further validated by immunohistochemistry in 12 additional placenta samples and found significantly increased in ZIKV infected placentas. The upregulation of this protein in the placental tissue suggests that ZIKV infection is promoting the coagulation of placental tissue and restructuration of ECM potentially affecting the integrity of the tissue and facilitating dissemination of the virus from mother to the fetus.
Funder
National Institute of General Medical Sciences National Institute on Minority Health and Health Disparities
Publisher
Springer Science and Business Media LLC
Subject
Cell Biology,General Medicine,Physiology,Histology
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