Protein related to DAN and cerberus is a bone morphogenetic protein antagonist that participates in ovarian paracrine regulation.
نویسندگان
چکیده
Bone morphogenetic proteins (BMPs) are important for body patterning and morphogenesis, whereas several BMP antagonists regulate the functions of BMPs during embryonic development and tissue differentiation. Protein related to DAN and cerberus (PRDC) is a secreted protein with a cystine knot structure identified by gene trapping in embryonic stem cells. Although PRDC shows sequence homology with proteins of the BMP antagonist family, its biological activity and physiological functions are unclear. We generated recombinant PRDC and its paralog, gremlin, and tested their ability to suppress actions initiated by diverse BMP proteins. Similar to the known BMP antagonist, gremlin, PRDC blocked ligand signaling induced by BMP2 and BMP4 but had minimal effects on reporter gene activation induced by GDF-9, activin, or transforming growth factor-beta. Co-precipitation assays further demonstrated the direct protein-protein interactions between PRDC and BMP2 or BMP4. Reverse transcriptase-PCR analyses indicated that PRDC transcripts are widely expressed showing higher levels in ovary, brain, and spleen. In mouse ovary, PRDC transcripts were increased following gonadotropin treatment. In situ hybridization analyses further indicated that ovarian PRDC transcripts are localized in granulosa cells of selective follicles. In addition, co-treatment with PRDC antagonized the inhibitory effects of BMP4 on the follicle-stimulating hormone stimulation of progesterone production by cultured rat granulosa cells. Thus, PRDC is a potent BMP antagonist with a wide tissue expression pattern, and ovarian PRDC expressed in granulosa cells could be involved in follicular development by antagonizing the actions of theca cell-derived BMPs.
منابع مشابه
Protein Related to DAN and Cerberus (PRDC) is a BMP Antagonist that Participates in Ovarian Paracrine Regulation
متن کامل
Structure of protein related to Dan and Cerberus: insights into the mechanism of bone morphogenetic protein antagonism.
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Differential screening-selected gene aberrative in neuroblastoma (DAN) is a member of a cystine knot protein family that includes Cerberus and Gremlin. First isolated in a screen to identify genes down-regulated in transformed rat fibroblasts, DAN has subsequently been cloned in Xenopus, mouse, and human. Overexpression of DAN suppresses the transformed phenotype and retards the cell's entry in...
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Dan is the founding member of the Dan family of secreted cytokines. All members of this family--which includes Gremlin, Cerberus, Dante, PRDC, and several genes identified as expressed sequence tags in the mouse--characterized to date have been shown to antagonize signaling by the bone morphogenetic protein (BMP) family. During mouse embryogenesis, Dan is expressed in a restricted and dynamic p...
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ورودعنوان ژورنال:
- The Journal of biological chemistry
دوره 279 22 شماره
صفحات -
تاریخ انتشار 2004