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ERK通路再激活:破解炭疽毒素致死机制的小鼠生存新策略
来自国际顶尖团队的研究人员针对炭疽致死毒素 (LT)引发MEKs蛋白水解失活、导致ERK/p38/JNK信号通路中断的致命机制,创新性构建了抗蛋白酶解的MEK2 (P10V/A11D)、MEK3 (I27D)和MEK6 (I15D)突变体。转基因小鼠实验证实,这些突变体可维持ERK/p38通路持续激活,显著提升宿主细胞在LT或炭疽杆菌攻击下的存活率,为毒素内化后的靶向治疗开辟新途径。
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