What question did this study set out to answer?

To investigate the antidepressant effects of platelet factors 4 (PF4) and its mechanism related to neuroinflammation.

April 19, 2026Open Access

Platelet factors 4 produces an antidepressant effect in mice via inhibition of neuroinflammation

YLYi-Heng LiJiangxi Mental Health Center JZJin-Qiong ZhanJiangxi Mental Health Center YZYing ZhaoUnion Hospital

Key Points

To investigate the antidepressant effects of platelet factors 4 (PF4) and its mechanism related to neuroinflammation.
Utilized mouse models to assess behavioral changes after PF4 administration.
Monitored neuroinflammatory responses in the nucleus accumbens (NAc).
Conducted assessments to evaluate the potential antidepressant effects of PF4.
PF4 treatment led to significant reductions in neuroinflammatory markers in the NAc.
Mice exhibited behavioral improvements associated with reduced depressive-like symptoms.
PF4 shows potential as a therapeutic target for major depression.

Abstract

Our findings demonstrate that PF4 exert an antidepressant effect, at least in part, by suppressing neuroinflammatory responses within the NAc. This work identifies PF4 as a novel and promising therapeutic target for the treatment of major depression.

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