Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan.
AIDS Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
FEBS Open Bio. 2019 Nov;9(11):1928-1938. doi: 10.1002/2211-5463.12729. Epub 2019 Sep 30.
Cyclosporin A (CsA) is a common immunosuppressant, but its use is limited as it can cause chronic kidney injury. Oxidative stress and apoptosis play a key role in CsA-induced nephrotoxicity. This study investigated the protective effect of 5-aminolevulinic acid and iron (5-ALA/SFC) on CsA-induced injury in murine proximal tubular epithelial cells (mProx24). 5-ALA/SFC significantly inhibited apoptosis in CsA-treated mProx24 cells with increases in heme oxygenase (HO)-1, nuclear factor E2-related factor 2 (Nrf2), and p38, and Erk-1/2 phosphorylation. Moreover, 5-ALA/SFC suppressed production of reactive oxygen species in CsA-exposed cells and inhibition of HO-1 suppressed the protective effects of 5-ALA/SFC. In summary, 5-ALA/SFC may have potential for development into a treatment for the anti-nephrotoxic/apoptotic effects of CsA.
环孢素 A(CsA)是一种常用的免疫抑制剂,但由于其会导致慢性肾损伤,其应用受到限制。氧化应激和细胞凋亡在 CsA 诱导的肾毒性中起关键作用。本研究探讨了 5-氨基酮戊酸和铁(5-ALA/SFC)对 CsA 诱导的鼠近端肾小管上皮细胞(mProx24)损伤的保护作用。5-ALA/SFC 显著抑制 CsA 处理的 mProx24 细胞凋亡,同时增加血红素加氧酶 1(HO-1)、核因子 E2 相关因子 2(Nrf2)和 p38、Erk-1/2 的磷酸化。此外,5-ALA/SFC 抑制 CsA 暴露细胞中活性氧的产生,而 HO-1 的抑制则抑制了 5-ALA/SFC 的保护作用。总之,5-ALA/SFC 可能具有开发为 CsA 抗肾毒性/抗凋亡作用的治疗方法的潜力。
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