NF-κB inhibitors stimulate apoptosis of rabbit mature osteoclasts and inhibit bone resorption by these cells
1997
Interesting, recent studies have suggested a possibility that transcriptional factor NF-κB may play a functional role in the survival of mouse osteoclasts. However, it has not been known whether NF-κB is involved in apoptosis of and bone resorption by mature osteoclasts. Thus, using NF-κB inhibitors, we examined the functional role of NF-κB in the induction of apoptosis in rabbit mature osteoclasts. PDTC, a potent inhibitor of NF-κB, stimulated markedly apoptosis of the osteoclasts and inhibited bone resorption by these cells. These effects also was observed when three other inhibitors of NF-κB were used. And a gel mobility shift assay showed that PDTC also inhibited NF-κB binding to its consensus sequence in the cells. These results suggest a regulatory role for NF-κB in apoptosis in and bone resorption by rabbit mature osteoclasts.
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