Research Papers:

Specific microRNA library of IFN-τ on bovine endometrial epithelial cells

Haichong Wu, Tao Zhang, Xiaofei Ma, Kangfeng Jiang, Gan Zhao, Changwei Qiu and Ganzhen Deng _

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Oncotarget. 2017; 8:61487-61498. https://doi.org/10.18632/oncotarget.18470

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Haichong Wu1, Tao Zhang1, Xiaofei Ma1, Kangfeng Jiang1, Gan Zhao1, Changwei Qiu1 and Ganzhen Deng1

1Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China

Correspondence to:

Ganzhen Deng, email: [email protected]

Keywords: microRNA, bovine endometrial epithelial cell, IFN-τ, pregnancy immunity

Received: March 16, 2017    Accepted: May 14, 2017    Published: June 14, 2017


IFN-τ is specifically secreted by the conceptus in ruminants during early pregnancy, and it plays a vital role in the immunological function of pregnancy. However, its mechanism involving microRNA (miRNA) is still not well understood. Deep sequencing was used to explore the specific miRNA library of IFN-τ on bovine endometrial epithelial cells (bEECs). The results showed that 574 known bovine miRNAs and 109 novel miRNAs were identified. We found 74 differentially expressed miRNAs, including 30 commonly expressed miRNAs in the experiment. Then, qPCR verification of six selected miRNAs showed that they corresponded with the sequencing data. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed significant enrichment of predicted target genes of differentially expressed miRNAs, including influenza A, herpes simplex infection, antigen processing and presentation, viral myocarditis, TNF signaling pathway, graft-versus-host disease, and allograft rejection. These results may provide important contributions to the immune response during early pregnancy in ruminants, but further studies are need to verify the proposed cellular/immunological effects and role of specific miRNA as biomarkers in vivo.

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