The key differentiation factor starts to be expressed and the cell is transformed into the CB.
NK cells also enhance production of dendritic cell interleukin-12 (IL-12), which is a key differentiation factor for T helper 1 (Th1) cells, themselves a major source of IFNγ [ 7].
The bone morphogenic protein (BMP -like molecules produced from the niche maintain GSCs BMP -likely repressing bag-of-moleculesbam), which encodes a key differentiation factor (Ohlstein and McKearin, 1997; Chen and McKearin, 2003b).
In GSCs, the pMad-Med-Shn complex directly represses transcription of bag of marbles (bam), which encodes a key differentiation factor (Chen and McKearin, 2003a, b; Pyrowolakis et al., 2004), as well as fused, encoding a kinase that phosphorylates the Dpp receptor, targeting it for proteasomal degradation (Xia et al., 2010, 2012).
Somatic niche cells express the ligands dpp and gbb, activating cytoplasmic Mad and Medea, the Drosophila Smads, in GSCs, which form complex and silence the transcription of the bam gene, the key differentiation factor that is normally turned off (Chen and McKearin 2003a; Song et al. 2004).
The BMP signaling activates cytoplasmic Mad and Medea, the Drosophila Smads, in GSCs, which form complex and silence the transcription of bag-of-marble (bam) gene, the key differentiation factor that is normally turned off in GSCs (Chen and McKearin 2003a; Song et al. 2004).
The adaptor Miranda regulates the asymmetric segregation of key differentiation factors such as Brat (a translational repressor) and Prospero (a homeodomain transcriptional repressor) (Ikeshima-Kataoka et al. 1997; Lee et al. 2006b; Schuldt et al. 1998; Shen et al. 1997).
Finally, we found prolactin, a key mammary differentiation factor, to suppress CPSF6/RNA editing activity.
Consistent with this model, neurogenin-3 activates the expression of several key islet differentiation factors (Heremans et al., 2002; Gasa et al., 2004), including NeuroD1 (Huang et al., 2000), Pax4 (Smith et al., 2003), Nkx2.2 (Watada et al., 2003), Myt1 (Wang et al., 2008) and Insm1 (Mellitzer et al., 2006).
Here, as signaling through RANK in preosteoclasts is the key initial osteoclast differentiation factor, we investigated how RA affects RANK expression.
For example, two key oocyte secreted factors (OSF), growth differentiation factor 9 (GDF-9) and bone morphogenic protein 15 (BMP-15) [ 8] were not detected.
