Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA.
Autoimmun Rev. 2013 May;12(7):741-51. doi: 10.1016/j.autrev.2012.12.007. Epub 2012 Dec 29.
Systemic lupus erythematosus (SLE) is characterized by imbalance redox state and increased apoptosis. The activation, proliferation and cell death of lymphocytes are dependent on intracellular levels of glutathione and controlled production of reactive oxygen species (ROS). Changes in the intracellular redox environment of cells, through oxygen-derived free radical production known as oxidative stress, have been reported to be critical for cellular immune dysfunction, activation of apoptotic enzymes and apoptosis. The shift in the cellular GSH-to-GSSG redox balance in favor of the oxidized species, GSSG, constitutes an important signal that can decide the fate of the abnormal apoptosis in the disease. The current review will focus on four main areas: (1) general description of oxidative stress markers in SLE, (2) alteration of redox state and complication of disease, (3) role of redox mechanisms in the initiation and execution phases of apoptosis, and (4) intracellular glutathione and its checkpoints with lymphocyte apoptosis which represent novel targets for pharmacological intervention in SLE.
系统性红斑狼疮(SLE)的特征是氧化还原状态失衡和细胞凋亡增加。淋巴细胞的激活、增殖和细胞死亡依赖于细胞内谷胱甘肽水平和活性氧(ROS)的产生。据报道,细胞内氧化还原环境的变化,通过氧自由基的产生(称为氧化应激),对细胞免疫功能障碍、凋亡酶的激活和细胞凋亡至关重要。细胞 GSH 到 GSSG 氧化还原平衡向有利于氧化产物 GSSG 的转变,构成了一个重要的信号,可以决定疾病中异常细胞凋亡的命运。目前的综述将集中在四个主要领域:(1)SLE 中氧化应激标志物的一般描述,(2)氧化还原状态的改变和疾病的复杂化,(3)氧化还原机制在细胞凋亡的起始和执行阶段的作用,以及(4)细胞内谷胱甘肽及其与淋巴细胞凋亡的检查点,这代表了 SLE 中药物干预的新靶点。