Activin-A receptor expression patterns in prepubertal goat oocytes and derived embryos

Roser Morató, Sondes Hammami, Maria Teresa Paramio, Dolors Izquierdo*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Contents This study examines the presence of activin IIA and IIB receptors (ActR-IIA and ActR-IIB) by Western blotting and immunocytochemistry in immature and IVM-oocytes, 2 to 8-cells embryos and blastocysts from prepubertal goats. Western blotting revealed that activin receptors are synthesized during oocyte maturation and embryo development. In the immunocytochemistry experiments, no immunostaining for either receptor was detected in oocytes while both receptors were immunolabelled in all the cells of cleaved embryos. In blastocysts, while ActR-IIA expression appeared evenly distributed in the two cell lineages, inner cell mass and trophectoderm, the ActR-IIB immunosignal was restricted mainly to the inner cell mass. Our findings reveal the presence of activin type II receptors (ActR-IIA and ActR-IIB) in in vitro matured prepubertal goat oocytes and blastocyst-stage embryos. The expression of these receptors could be a key factor in understanding differences between competent and incompetent oocytes.

Original languageEnglish
Pages (from-to)804-807
Number of pages4
JournalReproduction in Domestic Animals
Volume54
Issue number5
DOIs
Publication statusPublished - 1 May 2019

Keywords

  • embryo development
  • IVEP
  • juvenile goat
  • FOLLISTATIN

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