HOX Cofactors in Human Ovaries
Author Information
Author(s): Ota Takayo, Asahina Haruka, Park Se-Hyung, Huang Qing, Minegishi Takashi, Auersperg Nelly, Leung Peter CK
Primary Institution: University of British Columbia
Hypothesis
The expression and regulation of HOX cofactors in human ovaries are unknown.
Conclusion
The study found that HOX cofactors are expressed in a specific manner during ovarian follicular development and are regulated by FSH and GDF-9 in granulosa cells.
Supporting Evidence
- PBX1, PBX2, and MEIS1/2 were expressed in granulosa cells at all stages of follicular development.
- PBX2 expression was inconsistent in primordial follicles but increased in primary to preovulatory follicles.
- FSH down-regulated PBX2 expression, while GDF-9 had no effect.
Takeaway
This study looked at how certain proteins, called HOX cofactors, work in human ovaries and found they change in different stages of egg development.
Methodology
The study used RT-PCR, immunofluorescence, immunohistochemistry, and western blot analysis to examine HOX cofactors in human ovaries and granulosa cells.
Limitations
The study was limited to premenopausal women and did not explore the effects in postmenopausal ovaries.
Participant Demographics
7 premenopausal women with normal ovaries.
Digital Object Identifier (DOI)
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