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Nature子刊:朱书/刘玮/黎浩发现,这种维生素A代谢物可抑制致命蜱传病毒引起的系统性炎症

WeChat: 生物世界 Medical/Healthcare AI 2026-07-21

TL;DR - A Nature Microbiology study reports that all-trans retinoic acid (ATRA), a vitamin A metabolite, suppresses systemic inflammation caused by SFTSV in mice, suggesting a potential therapeutic target for the often-fatal tick-borne infection.

  • SFTSV patients showed depleted vitamin A and ATRA levels, correlating with more severe systemic inflammation and higher mortality risk.
  • In mice, intraperitoneal ATRA reduced virus-induced hyperinflammation through PPARγ.
  • ATRA promoted RXRα–PPARγ complex formation, sequestering JUN and reducing AP-1-driven inflammatory genes such as IL-6.
  • The findings identify retinoid signaling as an immunometabolic checkpoint and potential target for controlling cytokine storms.

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