Luteolin in Safflower Leaves Suppresses Microglial Inflammation Through FOXO3-Mediated Trem2 Transcription

Tiantian Zhang, Shuangxi Zhang, Jiayang Ma, Dmitrii Atiakshin, Shujun Han, Mami Noda, Midori Hiramatsu, Jiankang Liu, Yunhua Peng, Jiangang Long · 2025

Read Luteolin in Safflower Leaves Suppresses Microglial Inflammation Through FOXO3-Mediated Trem2 Transcription by Tiantian Zhang, Shuangxi Zhang, Jiayang Ma, Dmitrii Atiakshin, Shujun Han, Mami Noda, Midori Hiramatsu, Jiankang Liu, Yunhua Peng, Jiangang Long (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12729663.txt.

Description

Brain inflammation driven by microglia, the brain's immune cells, is a hallmark of Alzheimer's disease, and a protein called TREM2 helps keep that inflammation in check. A ten-author team studied safflower leaves, a vegetable rich in the compound luteolin, building on hints that the leaves calm brain inflammation in mice bred to develop Alzheimer's-like changes.

In those mice, leaf treatment raised TREM2 levels and quieted microglia. In cell tests, luteolin alone did the same. The team traced the effect to a switch protein, FOXO3, which turns on the Trem2 gene once luteolin moves it into the cell nucleus. They report FOXO3 as a newly found regulator of that gene. When Trem2 was knocked down, luteolin's calming effect faded, confirming the pathway's role. The authors propose the leaves or their key compound as a dietary candidate worth further study.

Catalog record

CREATORTiantian Zhang, Shuangxi Zhang, Jiayang Ma, Dmitrii Atiakshin, Shujun Han, Mami Noda, Midori Hiramatsu, Jiankang Liu, Yunhua Peng, Jiangang Long
YEAR2025
COLLECTIONPAPERS
FORMATTXT
FILE SIZE30 KB
VERSION1.0
LICENSECC BY 4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/articles/PMC12729663

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