Expression of growth differentiation factor 9 (GDF9), bone morphogenetic protein 15 (BMP15), and BMP receptors in the ovaries of goats

J R V Silva, R van den Hurk, H T A van Tol, B A J Roelen, J R Figueiredo

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    The process of ovarian folliculogenesis is composed of proliferation and differentiation of the constitutive cells in developing follicles. In goats, relatively little information is available on the local factors that regulate this process. We studied the presence and distribution of growth differentiation factor 9 (GDF9), bone morphogenetic protein 15 (BMP15), and BMP receptors types 2 (BMPR2), 1A (BMPR1A), and 1B (BMPR1B) in goat ovaries to find evidence for their possible roles in folliculogenesis. Ovaries of cyclic goats were collected and fixed in paraformaldehyde for immunohistochemical localization of GDF9 and BMP15 proteins or used to collect follicles and luteal tissue to study the mRNA expression of GDF9, BMP15, and BMP receptors using reverse transcriptase polymerase chain reaction (RT-PCR). GDF9 and BMP15 proteins were found in oocytes of all types of follicles and granulosa cells of primary, secondary, and antral but not primordial follicles. The mRNAs for GDF9, BMP15, BMPR2, BMPR1A, and BMPR1B were detected in primordial, primary, and secondary follicles as well as in oocyte and granulosa cells of antral follicles. Transcripts for BMPR2, BMPR1A, BMPR1B, and GDF9, and GDF9 protein were furthermore found in corpora lutea. It is concluded that the mRNAs and proteins of GDF9 and BMP15 and the mRNAs of BMP receptors are expressed in goat ovarian follicles at all stages of their development, and that they form a complex intrafollicular regulatory system during folliculogenesis. Expression of all BMP receptor mRNAs and GDF9 mRNA and protein in luteal tissue additionally points to a role of GDF9 in corpus luteum function.

    Original languageEnglish
    Pages (from-to)11-19
    Number of pages9
    JournalMolecular Reproduction and Development
    Volume70
    Issue number1
    DOIs
    Publication statusPublished - Jan 2005

    Keywords

    • Animals
    • Bone Morphogenetic Protein Receptors
    • Corpus Luteum
    • Female
    • Gene Expression
    • Goats
    • Granulosa Cells
    • Growth Differentiation Factor 9
    • Intercellular Signaling Peptides and Proteins
    • Oocytes
    • Ovarian Follicle
    • RNA, Messenger
    • Receptors, Growth Factor

    Fingerprint

    Dive into the research topics of 'Expression of growth differentiation factor 9 (GDF9), bone morphogenetic protein 15 (BMP15), and BMP receptors in the ovaries of goats'. Together they form a unique fingerprint.

    Cite this