Title : Gadd45 in the response of hematopoietic cells to genotoxic stress.

Pub. Date : 2007 Nov-Dec

PMID : 17659913






4 Functional Relationships(s)
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1 Myeloid enriched BM cells from gadd45a and gadd45b deficient mice were observed to be more sensitive to ultraviolet radiation (UVC), VP-16, and daunorubicin (DNR)-induced apoptosis compared to wild-type (wt) cells. Etoposide growth arrest and DNA-damage-inducible 45 beta Mus musculus
2 Myeloid enriched BM cells from gadd45a and gadd45b deficient mice were observed to be more sensitive to ultraviolet radiation (UVC), VP-16, and daunorubicin (DNR)-induced apoptosis compared to wild-type (wt) cells. Daunorubicin growth arrest and DNA-damage-inducible 45 beta Mus musculus
3 Both gadd45a and gadd45b deficient BM cells also displayed defective G2/M arrest following exposure to UVC and VP-16, but not to DNR, indicating the existence of different G2/M checkpoints that are either dependent or independent of gadd45. Etoposide growth arrest and DNA-damage-inducible 45 beta Mus musculus
4 These observations set the stage to evaluate, in clinically relevant settings, the impact that the status of gadd45a and gadd45b might have on the efficacy of DNR or VP-16 in killing leukemic cells. Etoposide growth arrest and DNA-damage-inducible 45 beta Mus musculus