Singlet oxygen mediates the activation of JNK by UVA radiation in human skin fibroblasts

Singlet oxygen mediates the activation of JNK by UVA radiation in human skin fibroblasts
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单线态氧介导人皮肤成纤维细胞中 UVA 辐射激活 JNK

DOI:
10.1016/s0014-5793(97)00440-7
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发表时间:
1997
期刊:
影响因子:
3.5
通讯作者:
H. Sies
H. Sies
中科院分区:
生物学3区
文献类型:
--
作者:
L. Klotz;K. Briviba;H. Sies

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紫外线A(UVA:320-400 nm)辐射激活人皮肤成纤维细胞中的c-Jun-N-末端激酶(JNK 2)。将细胞暴露于UVA(300 kJ/m2)导致JNK-活性的5倍诱导,其在D2 O(单线态氧寿命的增强剂)存在下显著增加。叠氮化钠是单线态氧的猝灭剂,可抑制JNK的激活。羟自由基清除剂甘露醇没有效果。此外,发现光化学产生的单线态氧(玫瑰红加白色光)诱导JNK活性。这是由D2 O增强和抑制叠氮化物。因此,单线态氧激活并介导UVA诱导的JNK激活。
Ultraviolet A (UVA: 320–400 nm) radiation activates c‐Jun–N‐terminal kinase (JNK 2) in human skin fibroblasts. Exposure of cells to UVA (300 kJ/m2) led to a 5‐fold induction of JNK‐activity which was significantly increased in the presence of D2O, an enhancer of the lifetime of singlet oxygen. Sodium azide, a quencher of singlet oxygen, abolished the activation of JNK. A hydroxyl radical scavenger, mannitol, had no effect. Furthermore, photochemically produced singlet oxygen (Rose Bengal plus white light) was found to induce JNK activity. This was enhanced by D2O and inhibited by azide. Thus, singlet oxygen activates and mediates the UVA‐induced activation of JNK.
DOI: 10.1073/pnas.93.23.12908
发表时间: 1996-11-12
影响因子: 11.1
作者:
Mendelson, KG;Contois, LR;Paulson, KE
通讯作者: Paulson, KE
DOI: 10.1016/s0021-9258(18)42228-4
发表时间: 1992-07
期刊: The Journal of biological chemistry
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DOI: --
发表时间: 1995
期刊: Oncogene.
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