首页> 外文期刊>Journal of Molecular Histology >Calcineurin inhibitors reduce nuclear localization of transcription factor NFAT in UV-irradiated keratinocytes and reduce DNA repair
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Calcineurin inhibitors reduce nuclear localization of transcription factor NFAT in UV-irradiated keratinocytes and reduce DNA repair

机译:钙调神经磷酸酶抑制剂可减少紫外线辐射的角质形成细胞中转录因子NFAT的核定位并减少DNA修复

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Calcineurin inhibitors are drugs used to suppress the immune system by blocking the nuclear localization of the NFAT transcription factor. Systemic use of these drugs is essential to organ transplantation, but comes at the cost of elevated rates of skin cancer. They have been used topically in atopic dermatitis and other skin diseases on the assumption that they avoid the cancer risk by localized use. The results here show that in skin cells and artificial models of human skin, calcineurin inhibitors block UV-induced nuclear localization of NFAT, and significantly reduce repair of cyclobutane pyrimidine dimers induced in DNA. In addition they inhibit apoptosis of UV-irradiated cells. The effect of blocking nuclear localization of NFAT and inhibiting DNA repair should be considered in judging the risk of topical use of calcineurin inhibitors.
机译:钙调神经磷酸酶抑制剂是用于通过阻断NFAT转录因子的核定位来抑制免疫系统的药物。这些药物的全身使用对于器官移植是必不可少的,但这是以皮肤癌发病率升高为代价的。假定它们通过局部使用避免了癌症风险,它们已在特应性皮炎和其他皮肤疾病中局部使用。此处的结果表明,在皮肤细胞和人类皮肤的人造模型中,钙调神经磷酸酶抑制剂可阻断UV诱导的NFAT核定位,并显着降低DNA中诱导的环丁烷嘧啶二聚体的修复。另外,它们抑制紫外线辐射细胞的凋亡。在判断局部使用钙调神经磷酸酶抑制剂的风险时,应考虑阻断NFAT核定位和抑制DNA修复的作用。

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