1333-阴道环持续释放SAMT-247增强疫苗抗SIV效力 episode artwork

EPISODE · Jul 25, 2026 · 24 MIN

1333-阴道环持续释放SAMT-247增强疫苗抗SIV效力

from 聊聊Sci

这项研究探讨了通过阴道环(IVR)持续释放小分子药物 SAMT-247,并结合 ΔV1-SIV 疫苗在恒河猴身上预防 SIV/HIV 感染的效果。实验结果显示,这种联合疗法能显著降低 82.8% 的感染风险,并能在长达两轮的病毒挑战中维持效力。研究发现,药物不仅能直接抑制病毒,还能与疫苗产生协同作用,通过增加调节性树突状细胞和 IL-10 分泌来增强黏膜免疫屏障。此外,该方案还提升了 V2 特异性 ADCC 活性和自然杀伤细胞的细胞毒性,有助于清除受感染细胞。这项发现为开发长效、低成本且具有协同免疫调节功能的 HIV 预防策略提供了重要依据。References:Rahman M A, Woode E K, Moss J A, et al. Sustained mucosal delivery of SAMT-247 via an intravaginal ring reduces the risk of SIVmac251 acquisition in vaccinated macaques[J]. Cell Reports Medicine, 2026.前往小宇宙评论区与主播互动

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1333-阴道环持续释放SAMT-247增强疫苗抗SIV效力

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