EPISODE · Aug 28, 2026 · 18 MIN
1505-弓形虫氧化应激适应与代谢调控机制
from 聊聊Sci
这项研究揭示了弓形虫在密集感染环境下的一种新型代谢调节机制。研究人员通过基因组筛选，鉴定出一种名为 TgPRO 的关键RNA结合蛋白，它在寄生虫应对氧化应激和营养匮乏时发挥核心作用。TgPRO 通过稳定特定的信使RNA，促进铁硫簇的合成并调节核心碳代谢途径。实验证明，缺失该蛋白会导致寄生虫的线粒体功能受损、氧化压力升高，并显著削弱其在宿主体内的慢性感染能力。这一发现标志着在顶复门寄生虫中首次发现了专门的代谢基因表达调节因子，展示了生物演化过程中功能趋同的奇妙现象。References:Giuliano C J, Kalluraya C A, Kloehn J, et al. Convergent evolution of metabolic regulation governs redox adaptation in Toxoplasma[J]. Cell, 2026.前往小宇宙评论区与主播互动
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1505-弓形虫氧化应激适应与代谢调控机制
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