Hormonal modulation of gap junctions in rat ovarian follicles (original) (raw)

Summary

Homocellular gap junctions between granulosa cells and between theca interna cells, and heterocellular gap junctions between granulosa cells and oocytes persist in rat ovarian follicles for as long as 90 days following hypophysectomy. Gonadotrophic and/or steroid hormones are therefore not required for the maintenance of gap junctions between these cells during early follicular growth. However, replacement therapy with estrogen and human chorionic gonadotrophin results in amplification of gap junctions in granulosa and theca interna cells respectively. Within 24 h following hormonal stimulation, growth of gap junctions is characterized by the appearance of formation plaques as observed in freeze-fracture replicas and by the association of microfilamentous material located subadjacent to gap junction membrane observable in thin-sectioned cells.

Access this article

Log in via an institution

Subscribe and save

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

Download references

Author information

Authors and Affiliations

  1. Department of Biology, Texas A & M University, 77843, College Station, Texas, USA
    Robert C. Burghardt
  2. Department of Anatomy and Laboratory of Human Reproduction and Reproductive Biology, Harvard Medical School, Boston, Massachusetts, USA
    Everett Anderson

Authors

  1. Robert C. Burghardt
  2. Everett Anderson

Rights and permissions

About this article

Cite this article

Burghardt, R.C., Anderson, E. Hormonal modulation of gap junctions in rat ovarian follicles.Cell Tissue Res. 214, 181–193 (1981). https://doi.org/10.1007/BF00235155

Download citation

Key words