Evidence map›Paper›PMID 40275171›Full record

ArticleMolecular medicine (Cambridge, Mass.)2025

Formononetin ameliorates depression-like behaviors through rebalancing microglia M1/M2 polarization and inhibiting NLRP3 inflammasome: involvement of activating PPARα-mediated autophagy.

Shuaijun Peng, Pan Su, Liming Liu, Zibo Li, Yuan Liu, Lei Tian, Ming Bai, Erping Xu, Yucheng Li

Abstract read
In one paragraph

Article in Molecular medicine (Cambridge, Mass.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Molecular medicine reports · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Shuaijun Peng *Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P.R. China.
Pan Su *Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P.R. China. Supan@hactcm.edu.cn.
Liming LiuCollaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P.R. China.
Zibo LiCollaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P.R. China.
Yuan LiuCollaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P.R. China.
Lei TianCollaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P.R. China.
Ming BaiCollaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P.R. China.
Erping XuCollaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P.R. China. Xuerping0371@163.com.
Yucheng LiCollaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, P.R. China. Liyucheng@hactcm.edu.cn.

Funding

Henan Provincial Science and Technology Research Project 232301420018National Natural Science Foundation of China 82274496National Natural Science Foundation of China 82404882Natural Science Fund of Henan Province 242300420428
6 · The paper itself

Abstract

backgroundThe dysregulation of neuroinflammation triggered by imbalance of microglia M1/M2 polarization is a key pathogenic factor and closely associated with occurrence of depression. Formononetin (FMN), a natural non-steroidal isoflavonoid, has been confirmed to exhibit remarkable anti-inflammatory efficacy, but the impact of FMN on depression and the underlying antidepressant mechanisms are still not fully understood. This study aimed to investigate whether the antidepressant effect of FMN is involved in modulating microglia polarization, and if so, what are the underlying mechanisms.

methodsLipopolysaccharide (LPS)-induced depressive mice were used to study antidepressant mechanisms of FMN. Microglia cell line BV2 stimulated by LPS was employed to investigate pharmacological mechanisms of FMN. Effects of FMN on neuronal damage were detected by H&E, Nissl and Golgi staining. The efficacy of FMN were evaluated by immunostaining and western blots in vivo and vitro. In addition, molecular docking, luciferase reporter assay, cellular thermal shift assay (CETSA) and drug affinity responsive target stability (DARTS) were used to confirm the direct target of FMN.

resultsOur results showed that FMN significantly reverses depression-like behaviors, alleviates neuroinflammation and neuronal damage, rebalances M1/M2 polarization, inhibits NLRP3 inflammasome and enhances microglial autophagy level in prefrontal cortex of LPS-induced depressive mice. In vitro assays, results unraveled that autophagy inhibitor chloroquine (CQ) blocks effects of FMN on inhibiting NLRP3 inflammasome and rebalancing M1/M2 polarization. Moreover, PPARα is identified as a direct target of FMN and FMN can activate PPARα-mediated autophagy. Furtherly, combination PPARα agonist (WY14643) with FMN had no significant additive effects on inhibiting NLRP3 inflammasome and rebalancing M1/M2 polarization, whereas PPARα antagonist (GW6471) abrogated these pharmacologic effects of FMN in BV2. Importantly, GW6471 exhibited similar pharmacologic effects to abolish antidepressant effect of FMN in LPS-induced depressive mice.

conclusionOur study firstly demonstrated that FMN can rebalance microglia M1/M2 polarization and inhibit NLRP3 inflammasome, with the involvement of activating PPARα-mediated autophagy to ameliorate depression-like behaviors, which provides a novel view to elucidate antidepressant mechanisms of FMN and also offers a potential therapeutic target for depression.

Indexed as

Antidepressive AgentsAutophagyDepressionInflammasomesIsoflavonesMicrogliaNLR Family, Pyrin Domain-Containing 3 ProteinPPAR alphaAnimalsBehavior, AnimalCell LineDisease Models, AnimalLipopolysaccharidesMaleMiceMice, Inbred C57BLAntidepressive AgentsformononetinInflammasomesIsoflavonesLipopolysaccharidesNLR Family, Pyrin Domain-Containing 3 ProteinNlrp3 protein, mousePPAR alphaPpara protein, mouseAnti-depressionAutophagyFormononetinMicroglia M1/M2 polarizationNLRP3 inflammasomePPARα

Identifiers

PMID40275171
PMCPMC12023581

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.