Activina
Mostrando 13-15 de 15 artigos, teses e dissertações.
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13. Differentiation of human embryonic stem cells on three-dimensional polymer scaffolds
Human embryonic stem (hES) cells hold promise as an unlimited source of cells for transplantation therapies. However, control of their proliferation and differentiation into complex, viable 3D tissues is challenging. Here we examine the use of biodegradable polymer scaffolds for promoting hES cell growth and differentiation and formation of 3D structures. We
National Academy of Sciences.
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14. A negative feedback system between oocyte bone morphogenetic protein 15 and granulosa cell kit ligand: Its role in regulating granulosa cell mitosis
Although the existence of a regulatory paracrine feedback system between oocytes and follicular somatic cells has been postulated for some time, there has not yet been any definitive evidence that such a communication system exists. Herein we present a previously undescribed oocyte-granulosa cell (GC) feedback communication system involving an oocyte-derived
The National Academy of Sciences.
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15. Generation of structural and functional diversity in furin-like proteins in Drosophila melanogaster by alternative splicing of the Dfur1 gene.
To investigate whether or not alternative splicing might be a mechanism by which in Drosophila melanogaster diversity is generated in endoproteases of the novel eukaryotic family of subtilisin-like proprotein processing enzymes, we determined structural and functional characteristics of the Dfur1 gene. Northern blot analysis revealed Dfur1 transcripts of 7.6