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Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
Published on: March 15, 2024
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STAT3-mediated ferroptosis is involved in ulcerative colitis
Fangfang Huang1, Suzhou Zhang2, Xiaoling Li3
1Graduate School, Guangdong Medical University, Zhanjiang, Guangdong, 524023, China; Department of Pediatrics, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, 524023, China.
Free Radical Biology & Medicine
|July 2, 2022
Summary
Ferroptosis, a cell death process, is increased in ulcerative colitis (UC). The gene STAT3 (signal transducer and activator of transcription 3) plays a key role in ferroptosis and may be a biomarker for UC.
Area of Science:
- Cellular biology
- Molecular mechanisms of disease
- Inflammation research
Background:
- Ferroptosis, a regulated cell death pathway driven by iron-dependent lipid peroxidation, is implicated in inflammatory conditions.
- The precise mechanisms of ferroptosis in ulcerative colitis (UC) pathogenesis require further elucidation.
Purpose of the Study:
- To investigate the role of ferroptosis in UC.
- To identify key ferroptosis-related genes involved in UC.
- To explore the therapeutic potential of targeting ferroptosis in UC.
Main Methods:
- Bioinformatic analysis integrating UC gene expression data (GEO database) with ferroptosis-related genes (FerrDb).
- Identification of STAT3 (signal transducer and activator of transcription 3) as a hub gene.
- In vitro (H2O2-induced IEC-6 cells) and in vivo (DSS-induced, S. Tm-induced colitis models) validation of STAT3-mediated ferroptosis.
Main Results:
- Ferroptosis was significantly elevated in various colitis models and H2O2-treated cells.
- STAT3 phosphorylation was decreased in H2O2-treated cells, with ferroptosis inhibitor (Fer-1) restoring it.
- Inhibition of STAT3 exacerbated ferroptosis, indicating its protective role.
Conclusions:
- Ferroptosis is closely linked to the development and progression of ulcerative colitis.
- The ferroptosis-related gene STAT3 is a potential diagnostic and therapeutic biomarker for UC.
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