ACSF2-mediated ferroptosis is involved in ulcerative colitis

Area of Science:

• Biomedical research
• Molecular biology
• Immunology

Background:

• Ulcerative colitis (UC) is a chronic inflammatory bowel disease.
• Ferroptosis, an iron-dependent form of regulated cell death, has emerged as a potential factor in UC pathogenesis.
• Identifying key molecular players in ferroptosis could offer novel therapeutic strategies for UC.

Purpose of the Study:

• To investigate the role of ferroptosis-related genes in the development of ulcerative colitis (UC).
• To identify potential biomarkers and therapeutic targets for UC based on ferroptosis pathways.

Main Methods:

• Bioinformatic analysis of UC datasets to identify ferroptosis-related genes.
• Utilized machine learning algorithms (LASSO, SVM-RFE) for key gene screening.
• Validated gene expression changes (ACSF2) in vivo and in vitro models, assessing reactive oxygen species (ROS) and iron levels.

Main Results:

• Identified ACSF2 (acyl CoA synthetase family member 2) as a key ferroptosis-related gene significantly associated with immune pathways in UC.
• Observed significantly down-regulated ACSF2 expression in UC models (animal, bacterial colitis, cell).
• Ferroptosis inhibitor Fer-1 reversed ACSF2 expression in LPS-induced cells, confirming ACSF2's role in ferroptosis and inflammation.

Conclusions:

• Ferroptosis is closely implicated in the pathogenesis of ulcerative colitis.
• The ferroptosis-related gene ACSF2 shows potential as a diagnostic biomarker and therapeutic target for UC.