
全球约3亿哮喘患者中有10%的重度患者存在类固醇抵抗性,这种抗性导致传统吸入药物(如布地奈德)对其完全失效,其核心机制在于TSLP(胸腺基质淋巴细胞生成素)炎症因子在气道上皮受损时会大量释放,通过激活p38 MAPK和STAT3信号通路,导致GR(糖皮质激素)磷酸化,使布地奈德无法与之结合,最终丧失抗炎作用。此外,传统疗法使用类似于Tezepelumab的单抗药物虽可中和TSLP,但因全身给药机制而导致肺部浓度不足以及脱靶效应导致疗效受限。由上海交通大学药学院章雪晴教授团队与新泽西理工学院许晓阳教授团队联合进行的一项研究提出了ASCEND策略以应对这个难题。本文将为广大读者解读这篇发表于《Nature Communications》的研究期刊。
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