Estradiol supports in vitro development of bovine early antral follicles

M. Endo, R. Kawahara-Miki, F. Cao, Koji Kimura, T. Kuwayama, Y. Monji, H. Iwata

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Antrum formation and estradiol (E2) secretion are specific features of oocyte and granulosa cell complexes (OGCs). This study investigates the effect of E2 on the in vitro development of bovine OGCs derived from early antral follicles as well as on the expression of genes in granulosa cells (GCs). The supplementation of culture medium with either E2 or androstenedione (A4) improved the in vitro development of OGCs and the nuclear maturation of enclosed oocytes. When OGCs were cultured in medium containing A4, developmentally competent OGCs secreted more E 2 than OGCs that were not competent. In addition, fulvestrant inhibited the effect of both E2 and A4 on OGCs development. Comprehensive gene expression analysis using next-generation sequence technology was conducted for the following three types of GCs: i) GCs of OGCs cultured for 4 days with E2 (1 μg/ml; E2(+)), ii) GCs of OGCs cultured for 4 days without E2 (E2(-)) or iii) OGCs that formed clear antrum after 8 days of in vitro culture in medium containing E2 (1 μg/ml; AF group). GCs of the E2(+) group had a similar gene expression profile to the profile reported previously for the in vivo development of large follicles. This genetic profile included factors implicated in the up-regulation of E2 biosynthesis and down-regulation of cytoskeleton and extracellular matrices. In addition, a novel gene expression profile was found in the AF group. In conclusion, E 22 impacts the gene expression profile of GCs to support the in vitro development of OGCs.

Original languageEnglish
Pages (from-to)85-96
Number of pages12
JournalReproduction
Volume145
Issue number1
DOIs
Publication statusPublished - Jan 2013
Externally publishedYes

Fingerprint

Granulosa Cells
Estradiol
Oocytes
Transcriptome
Antral
In Vitro Techniques
Culture Media
Gene Expression
Androstenedione
Cytoskeleton

ASJC Scopus subject areas

  • Obstetrics and Gynaecology
  • Reproductive Medicine
  • Embryology
  • Endocrinology
  • Cell Biology

Cite this

Endo, M., Kawahara-Miki, R., Cao, F., Kimura, K., Kuwayama, T., Monji, Y., & Iwata, H. (2013). Estradiol supports in vitro development of bovine early antral follicles. Reproduction, 145(1), 85-96. https://doi.org/10.1530/REP-12-0319

Estradiol supports in vitro development of bovine early antral follicles. / Endo, M.; Kawahara-Miki, R.; Cao, F.; Kimura, Koji; Kuwayama, T.; Monji, Y.; Iwata, H.

In: Reproduction, Vol. 145, No. 1, 01.2013, p. 85-96.

Research output: Contribution to journalArticle

Endo, M, Kawahara-Miki, R, Cao, F, Kimura, K, Kuwayama, T, Monji, Y & Iwata, H 2013, 'Estradiol supports in vitro development of bovine early antral follicles', Reproduction, vol. 145, no. 1, pp. 85-96. https://doi.org/10.1530/REP-12-0319
Endo M, Kawahara-Miki R, Cao F, Kimura K, Kuwayama T, Monji Y et al. Estradiol supports in vitro development of bovine early antral follicles. Reproduction. 2013 Jan;145(1):85-96. https://doi.org/10.1530/REP-12-0319
Endo, M. ; Kawahara-Miki, R. ; Cao, F. ; Kimura, Koji ; Kuwayama, T. ; Monji, Y. ; Iwata, H. / Estradiol supports in vitro development of bovine early antral follicles. In: Reproduction. 2013 ; Vol. 145, No. 1. pp. 85-96.
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