کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5562302 1562611 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Activation of Nrf2-ARE signaling mitigates cyclophosphamide-induced myelosuppression
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بهداشت، سم شناسی و جهش زایی
پیش نمایش صفحه اول مقاله
Activation of Nrf2-ARE signaling mitigates cyclophosphamide-induced myelosuppression
چکیده انگلیسی


- Nrf2 deficiency deteriorated CTX-induced myelosuppression in vitro/in vivo.
- Nrf2 deficiency decreased antioxidant capacity of peripheral blood and bone marrow.
- Nrf2 deficiency impaired hematopoietic proliferating and colony formation ability.
- CDDO-Me Nrf2-dependently mitigated CTX-induced myelosuppression.

Myelosuppression is the most common dose-limiting adverse effect of chemotherapies. In the present study, we investigated the involvement of nuclear erythroid 2-related factor 2 (Nrf2) in cyclophosphamide-induced myelosuppression in mice, and evaluated the potential of activating Nrf2 signaling as a preventive strategy. The whole blood from Nrf2−/− mice exhibited decreased antioxidant capacities, while the bone marrow cells, peripheral blood mononuclear cells and granulocytes from Nrf2−/− mice were more susceptible to acrolein-induced cytotoxicity than those from wild type mice. Single dosage of cyclophosphamide induced significantly severer acute myelosuppression in Nrf2−/− mice than in wild type mice. Furthermore, Nrf2−/− mice exhibited greater loss of peripheral blood nucleated cells and recovered slower from myelosuppression nadir upon multiple consecutive dosages of cyclophosphamide than wild type mice did. This was accompanied with decreased antioxidant and detoxifying gene expressions and impaired colony formation ability of Nrf2−/− bone marrow cells. More importantly, activation of Nrf2 signaling by CDDO-Me significantly alleviated cyclophosphamide-induced myelosuppression, while this alleviation was diminished in Nrf2−/− mice. In conclusion, the present study shows that Nrf2 plays a protective role in cyclophosphamide-induced myelosuppression and activation of Nrf2 is a promising strategy to prevent or treat chemotherapy-induced myelosuppression.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Toxicology Letters - Volume 262, 16 November 2016, Pages 17-26
نویسندگان
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