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氧化应激防御的双刃剑:NADPH缺乏通过PKA抑制介导H2 O2 耐受性与抗性 ...
来自Jacquel团队的研究人员通过酵母和大肠杆菌模型,揭示了细胞应对H2 O2 胁迫时抗性(resistance)与耐受性(tolerance)的分子博弈。研究发现,缺失PPP通路关键基因zwf1Δ 导致NADPH不足时,细胞虽丧失抗性却通过氧化还原介导的PKA抑制获得更强耐受性,这一进化保守机制为靶向应激防御的协同疗法提供了新思路。
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