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Research article - Peer-reviewed, 2021

Analysis of the transcriptome of bovine endometrial cells isolated by laser micro-dissection (1): specific signatures of stromal, glandular and luminal epithelial cells

Chankeaw, Wiruntita; Lignier, Sandra; Richard, Christophe; Ntallaris, Theodoros; Raliou, Mariam; Guo, Yongzhi; Plassard, Damien; Bevilacqua, Claudia; Sandra, Olivier; Andersson, Goran; Humblot, Patrice; Charpigny, Gilles

Abstract

Background A number of studies have examined mRNA expression profiles of bovine endometrium at estrus and around the peri-implantation period of pregnancy. However, to date, these studies have been performed on the whole endometrium which is a complex tissue. Consequently, the knowledge of cell-specific gene expression, when analysis performed with whole endometrium, is still weak and obviously limits the relevance of the results of gene expression studies. Thus, the aim of this study was to characterize specific transcriptome of the three main cell-types of the bovine endometrium at day-15 of the estrus cycle. Results In the RNA-Seq analysis, the number of expressed genes detected over 10 transcripts per million was 6622, 7814 and 8242 for LE, GE and ST respectively. ST expressed exclusively 1236 genes while only 551 transcripts were specific to the GE and 330 specific to LE. For ST, over-represented biological processes included many regulation processes and response to stimulus, cell communication and cell adhesion, extracellular matrix organization as well as developmental process. For GE, cilium organization, cilium movement, protein localization to cilium and microtubule-based process were the only four main biological processes enriched. For LE, over-represented biological processes were enzyme linked receptor protein signaling pathway, cell-substrate adhesion and circulatory system process. Conclusion The data show that each endometrial cell-type has a distinct molecular signature and provide a significantly improved overview on the biological process supported by specific cell-types. The most interesting result is that stromal cells express more genes than the two epithelial types and are associated with a greater number of pathways and ontology terms.

Keywords

Cow; Endometrium; Cell type-specific; Transcriptome; LCM; RNA-seq

Published in

BMC Genomics
2021, volume: 22, number: 1, article number: 451
Publisher: BMC

Authors' information

Chankeaw, Wiruntita
Swedish University of Agricultural Sciences, Department of Clinical Sciences
Lignier, Sandra
Universite Paris Saclay
Richard, Christophe
Universite Paris Saclay
Swedish University of Agricultural Sciences, Department of Clinical Sciences
Raliou, Mariam
Universite Paris Saclay
Swedish University of Agricultural Sciences, Department of Clinical Sciences
Plassard, Damien
Institut National de la Sante et de la Recherche Medicale (Inserm)
Bevilacqua, Claudia
Universite Paris Saclay
Sandra, Olivier
Universite Paris Saclay
Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics
Swedish University of Agricultural Sciences, Department of Clinical Sciences
Charpigny, Gilles
Universite Paris Saclay

UKÄ Subject classification

Clinical Science

Publication Identifiers

DOI: https://doi.org/10.1186/s12864-021-07712-0

URI (permanent link to this page)

https://res.slu.se/id/publ/112746