We previously demonstrated a circadian rhythm in response to docetaxel chemotherapy in C3H/HeN mice bearing MA13/C mammary adenocarcinoma. We investigated the relation between this rhythm and the expression of BCL-2 in bone marrow and in tumor tissues. A circadian rhythm characterized BCL-2 expression in the bone marrow, which was hardly modified in tumor-bearing animals. BCL-2 acrophase coincided with the time of highest docetaxel tolerability and efficacy in this model. This suggests that BCL-2 protects the bone marrow from the drug toxicity, especially during the light phase.
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| http://dx.doi.org/10.1016/s0369-8114(03)00036-1 | DOI Listing |
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