We studied the in vitro role of NF-κB-dependent signaling in the growth capacity of mesenchymal progenitor cells upon stimulation by basic fibroblast growth factor. Proliferative activity of progenitor cells was suppressed by specifi c inhibitors of this transcription factor (NF-κB), oridonin and aurothiomalate. These inhibitors had no effect on differentiation of fibroblast CFU.
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