What question did this study set out to answer?

The study aimed to explore how Ligustilide prevents tobacco carcinogen-induced lung cancer by activating the cGAS-STING pathway.

Ligustilide activates cGAS-STING to chemoprevent tobacco carcinogen-induced lung tumorigenesis

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Randomized trial shows Ligustilide activates cGAS-STING in mice to prevent lung tumorigenesis, suggesting a novel chemoprevention method.

The study aimed to explore how Ligustilide prevents tobacco carcinogen-induced lung cancer by activating the cGAS-STING pathway.
Used NNK-treated A/J mouse model to assess the effects of Ligustilide (10/40 mg/kg).
Analyzed lung histopathology, inflammatory markers, and cGAS-STING pathway activity.
Conducted in vitro experiments on lung epithelial cells (MLE-12) to examine direct interactions of Ligustilide.
Ligustilide significantly reduced lung histopathological injuries and restored body weight.
Down-regulated IL-6 and IL-1β expression, indicating reduced inflammation.
Enhanced activity of the cGAS-STING pathway with increased type I interferon production and CD8+ T cell recruitment.

Huang et al. (2026) studied this question.

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