In vitro development of secondary follicles from pre-pubertal and adult goats cultured in two-dimensional or three-dimensional systems

Gerlane Modesto Da Silva*, R. Rossetto, R. N. Chaves, A. B.G. Duarte, V. R. Araújo, C. Feltrin, M. P. Bernuci, J. A. Anselmo-Franci, M. Xu, T. K. Woodruff, C. C. Campello, J. R. Figueiredo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The aim of this study was to evaluate the influence of two-dimensional (2D) and three-dimensional (3D) alginate culture systems on in vitro development of pre-antral caprine follicles. In addition, the influence of the reproductive age of the ovary donor on the in vitro culture success was investigated. Pre-antral follicles from pre-pubertal or adult goats were isolated and cultured directly on a plastic surface (2D) or encapsulated in an alginate-based matrix (3D). After 18 days, the oocytes underwent in vitro maturation (IVM) and in vitro fertilization (IVF) to produce embryos. The 3D system showed higher rates of follicle survival, lower rates of oocyte extrusion, and a greater number of recovered oocytes for IVM and IVF (P < 0.05). Only pre-antral follicles from adult animals produced MII oocytes and embryos. The estradiol concentrations increased from day 2 to day 12 of culture in all groups tested (P < 0.05). Conversely, progesterone concentrations were lower in 3D-cultured follicles than in 2D-cultured follicles, with differences on days 2 and 6 of culture (P < 0.05). We provide compelling evidence that a 2D or 3D alginate in vitro culture system offers a promising approach to achieving full in vitro development of caprine pre-antral follicles to produce mature oocytes that are capable of fertilization and viable embryos.

Original languageEnglish (US)
Pages (from-to)475-484
Number of pages10
JournalZygote
Volume23
Issue number4
DOIs
StatePublished - Aug 13 2015

Keywords

  • Alginate
  • Follicle culture
  • Oocyte
  • Pre-antral follicle
  • Steroid secretion

ASJC Scopus subject areas

  • Developmental Biology
  • Cell Biology

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