Serum exosomal miR-192 serves as a potential detective biomarker for early pregnancy screening in sows

Objective The study was conducted to screen differentially expressed miRNAs in sows at early pregnancy by high-throughput sequencing and explore its mechanism of action on embryo implantation. Methods The blood serum of pregnant and non-pregnant Landrace×Yorkshire sows were collected 14 days after a...

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Main Authors: Ruonan Gao, Qingchun Li, Meiyu Qiu, Su Xie, Xiaomei Sun, Tao Huang
Format: Article
Language:English
Published: Asian-Australasian Association of Animal Production Societies 2023-09-01
Series:Animal Bioscience
Subjects:
Online Access:http://www.animbiosci.org/upload/pdf/ab-22-0422.pdf
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author Ruonan Gao
Qingchun Li
Meiyu Qiu
Su Xie
Xiaomei Sun
Tao Huang
author_facet Ruonan Gao
Qingchun Li
Meiyu Qiu
Su Xie
Xiaomei Sun
Tao Huang
author_sort Ruonan Gao
collection DOAJ
description Objective The study was conducted to screen differentially expressed miRNAs in sows at early pregnancy by high-throughput sequencing and explore its mechanism of action on embryo implantation. Methods The blood serum of pregnant and non-pregnant Landrace×Yorkshire sows were collected 14 days after artificial insemination, and exosomal miRNAs were purified for high throughput miRNA sequencing. The expression patterns of 10 differentially expressed (DE) miRNAs were validated by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). The qRT-PCR quantified the abundance of serum exosomal miR-192 in pregnant and control sows, and the diagnostic power was assessed by receiver operating characteristic (ROC) analysis. The target genes of DE miRNAs were predicted with bioinformatics software, and the functional and pathway enrichment analysis was performed on gene ontology and the Kyoto encyclopedia of genes and genomes terms. Furthermore, a luciferase reporter system was used to identify the target relation between miR-192 and integrin alpha 4 (ITGA4), a gene influencing embryo implantation in pigs. Finally, the expression levels of miRNAs and the target gene ITGA4 were analyzed by qRT-PCR, and western blot, with the proliferation of BeWo cells detected by cell counting kit-8 (CCK-8). Results A total of 221 known miRNAs were detected in the libraries of the pregnant and non-pregnant sows, of which 55 were up-regulated and 67 were down-regulated in the pregnant individuals compared with the non-pregnant controls. From these, the expression patterns of 10 DE miRNAs were validated. The qRT-PCR analysis further confirmed a significantly higher expression of miR-192 in the serum exosomes extracted from pregnant sows, when compared to controls. The ROC analysis revealed that miR-192 provided excellent diagnostic accuracy for pregnancy (area under the ROC curve [AUC] = 0.843; p>0.001). The dual-luciferase reporter assay indicated that miR-192 directly targeted ITGA4. The protein expression of ITGA4 was reduced in cells that overexpressed miR-192. Overexpression of miR-192 resulted in the decreased proliferation of BeWo cells and regulated the expression of cell cycle-related genes. Conclusion Serum exosomal miR-192 could serve as a potential biomarker for early pregnancy in pigs. miR-192 targeted ITGA4 gene directly, and miR-192 can regulate cellular proliferation.
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spelling doaj.art-5f093474f214435b9be16e9998635bf52023-08-31T00:22:23ZengAsian-Australasian Association of Animal Production SocietiesAnimal Bioscience2765-01892765-02352023-09-013691336134910.5713/ab.22.042225057Serum exosomal miR-192 serves as a potential detective biomarker for early pregnancy screening in sowsRuonan Gao0Qingchun Li1Meiyu Qiu2Su Xie3Xiaomei Sun4Tao Huang5 College of Animal Science and Technology, Shihezi University, 221 North Fourth Road, Shihezi 832000, China College of Animal Science and Technology, Shihezi University, 221 North Fourth Road, Shihezi 832000, China College of Animal Science and Technology, Shihezi University, 221 North Fourth Road, Shihezi 832000, China College of Animal Science and Technology, Shihezi University, 221 North Fourth Road, Shihezi 832000, China College of Animal Science and Technology, Shihezi University, 221 North Fourth Road, Shihezi 832000, China College of Animal Science and Technology, Shihezi University, 221 North Fourth Road, Shihezi 832000, ChinaObjective The study was conducted to screen differentially expressed miRNAs in sows at early pregnancy by high-throughput sequencing and explore its mechanism of action on embryo implantation. Methods The blood serum of pregnant and non-pregnant Landrace×Yorkshire sows were collected 14 days after artificial insemination, and exosomal miRNAs were purified for high throughput miRNA sequencing. The expression patterns of 10 differentially expressed (DE) miRNAs were validated by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). The qRT-PCR quantified the abundance of serum exosomal miR-192 in pregnant and control sows, and the diagnostic power was assessed by receiver operating characteristic (ROC) analysis. The target genes of DE miRNAs were predicted with bioinformatics software, and the functional and pathway enrichment analysis was performed on gene ontology and the Kyoto encyclopedia of genes and genomes terms. Furthermore, a luciferase reporter system was used to identify the target relation between miR-192 and integrin alpha 4 (ITGA4), a gene influencing embryo implantation in pigs. Finally, the expression levels of miRNAs and the target gene ITGA4 were analyzed by qRT-PCR, and western blot, with the proliferation of BeWo cells detected by cell counting kit-8 (CCK-8). Results A total of 221 known miRNAs were detected in the libraries of the pregnant and non-pregnant sows, of which 55 were up-regulated and 67 were down-regulated in the pregnant individuals compared with the non-pregnant controls. From these, the expression patterns of 10 DE miRNAs were validated. The qRT-PCR analysis further confirmed a significantly higher expression of miR-192 in the serum exosomes extracted from pregnant sows, when compared to controls. The ROC analysis revealed that miR-192 provided excellent diagnostic accuracy for pregnancy (area under the ROC curve [AUC] = 0.843; p>0.001). The dual-luciferase reporter assay indicated that miR-192 directly targeted ITGA4. The protein expression of ITGA4 was reduced in cells that overexpressed miR-192. Overexpression of miR-192 resulted in the decreased proliferation of BeWo cells and regulated the expression of cell cycle-related genes. Conclusion Serum exosomal miR-192 could serve as a potential biomarker for early pregnancy in pigs. miR-192 targeted ITGA4 gene directly, and miR-192 can regulate cellular proliferation.http://www.animbiosci.org/upload/pdf/ab-22-0422.pdfbiomarkersearly pregnancyexosomal mirnasitga4mir-192
spellingShingle Ruonan Gao
Qingchun Li
Meiyu Qiu
Su Xie
Xiaomei Sun
Tao Huang
Serum exosomal miR-192 serves as a potential detective biomarker for early pregnancy screening in sows
Animal Bioscience
biomarkers
early pregnancy
exosomal mirnas
itga4
mir-192
title Serum exosomal miR-192 serves as a potential detective biomarker for early pregnancy screening in sows
title_full Serum exosomal miR-192 serves as a potential detective biomarker for early pregnancy screening in sows
title_fullStr Serum exosomal miR-192 serves as a potential detective biomarker for early pregnancy screening in sows
title_full_unstemmed Serum exosomal miR-192 serves as a potential detective biomarker for early pregnancy screening in sows
title_short Serum exosomal miR-192 serves as a potential detective biomarker for early pregnancy screening in sows
title_sort serum exosomal mir 192 serves as a potential detective biomarker for early pregnancy screening in sows
topic biomarkers
early pregnancy
exosomal mirnas
itga4
mir-192
url http://www.animbiosci.org/upload/pdf/ab-22-0422.pdf
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