PMID: 9557801Apr 29, 1998Paper

Recombinant porcine follicle stimulating hormone produced in baculovirus-insect cells induces rat ovulation in vivo and gene expression of tissue plasminogen activator in vitro

Research in Veterinary Science
T InabaS Ueda

Abstract

Superovulatory responses in cattle are known to be highly variable. In the present study, a recombinant porcine follicle stimulating hormone (rpFSH) produced in baculovirus-insect cells was utilised to evaluate the role of this recombinant FSH in control of the ovulatory process. Immature hypophysectomised rats were implanted with oestrogen pellet (10 mg diethylstilbestrol) and then primed with pregnant mare serum gonadotropin (PMSG, 17.5 IU, sc). Fifty-two hours later, 100 microg rpFSH or saline was injected (sc) to induce ovulation. All rats that received rpFSH ovulated with about eight ova rat(-1), whereas none of the control animals did. Ovulation induced by rpFSH was associated with an increase in the ovarian activity and message levels of tissue-type plasminogen activator (tPA), a protease important in the preovulatory degradation of the follicle wall. Furthermore, addition of rpFSH to the cultured rat granulosa cells resulted in a significant increase in tPA enzyme activity. These results demonstrate that rpFSH produced in baculovirus-insect cells has biological potency in ovulation as well as gene expression of tPA, providing a large advantage of this massive expression system in the reproduction of domestic animals.

References

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Jan 15, 1997·Theriogenology·T InabaS Ueda

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Citations

Nov 13, 2008·Cytotechnology·Roshni L DuttonMurray Moo-Young
Mar 29, 2000·Theriogenology·T InabaT Sawada
Mar 30, 2010·Applied Microbiology and Biotechnology·Zhanglin Lin, Jing Zheng
Nov 14, 2018·Der Unfallchirurg·Martin LiebhauserAlexander Antoniadis
Feb 3, 2006·FEMS Microbiology Letters·Nagamoto MuraiKazuhisa Sekimizu
Sep 11, 2007·FEMS Yeast Research·Teita AsanoTohru Mizushima
May 29, 2000·The Proceedings of the Nutrition Society·Y ChilliardF Bocquier
Sep 10, 2014·Annals of the Royal College of Surgeons of England·Y GhaniP A Kumar

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