China CDC Key Laboratory of Environment and Population Health.
The Afffiliated Shunde Hospital of Guangzhou Medical University, Foshan 528315, Guangzhou, China.
Biomed Environ Sci. 2022 Jul 20;35(7):657-662. doi: 10.3967/bes2022.086.
This study aimed to investigate the neurotoxicity induced by trichloroacetic acid (TCA) and the possible protective mechanisms of boron (B). Mouse BV2 cells were treated with TCA (0, 0.39, 0.78, 1.56, 3.12, 6.25, or 12.5 mmol/L) and B (0, 7.8, 15.6, 31.25, 62.5, 125, 500, or 1,000 mmol/L) for 3 h and 24 h, respectively. Then, reactive oxygen species, and supernatant proinflammatory cytokine and protein levels were analyzed after 24 h of combined exposure. Beyond the dose-dependent decrease in the cellular viability, it clearly increased after B supplementation ( < 0.05). Moreover, B decreased oxidative damage, and significantly down-regulated IL-6 levels and up-regulated TNF-β production ( < 0.05). B also decreased apoptosis the p53 pathway. The present findings indicated that TCA may induce oxidative damage, whereas B mitigates these adverse effects by decreasing cell apoptosis.
本研究旨在探讨三氯乙酸(TCA)诱导的神经毒性及硼(B)的可能保护机制。将小鼠 BV2 细胞分别用 TCA(0、0.39、0.78、1.56、3.12、6.25 或 12.5mmol/L)和 B(0、7.8、15.6、31.25、62.5、125、500 或 1000mmol/L)处理 3 小时和 24 小时。然后,在联合暴露 24 小时后分析细胞上清液中促炎细胞因子和蛋白水平。B 补充后细胞活力明显呈剂量依赖性下降( < 0.05)。此外,B 降低了氧化损伤,并显著降低了 IL-6 水平,增加了 TNF-β 的产生( < 0.05)。B 还降低了细胞凋亡和 p53 通路。这些结果表明,TCA 可能诱导氧化损伤,而 B 通过减少细胞凋亡来减轻这些不良反应。