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Intra-ovarian roles of activins inhibins and follistatin in follicular development in cattle

ReferenceS05760
Principal Investigator / Supervisor Professor Philip Knight
Co-Investigators /
Co-Supervisors
Institution University of Reading
DepartmentAnimal and Microbial Sciences
Funding typeResearch
Value (£) 159,830
StatusCompleted
TypeResearch Grant
Start date 01/12/1996
End date 01/12/1999
Duration36 months

Abstract

Novel immunoassays will be used to investigate factors (i.e. growth factors, gonadotrophins, steroids) regulating differential production of activin (betaAbetaA), inhibin (alphabetaA) and follistatin by bovine whole-follicle cultures and isolated granulosa cells. Expression of mRNA for alpha and betaA subunits, follistatin and activin receptors will be evaluated by in situ hybridisation. The use of activin receptor antibodies to block potential autocrine effects of activin will be studied. The ability of antisense oligos targeted at alpha, betaA and follistatin mRNAs, to suppress synthesis of activin, inhibin and follistatin and perturb cell function will also be explored. Activin, inhibin and follistatin will be measured for the first time in individual bovine follicles from early antral through to dominant ovulatory/subordinate/atretic stages.

Summary

unavailable
Committee Closed Committee - Animal Sciences (AS)
Research TopicsX – not assigned to a current Research Topic
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
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