CCL23 and infection: C-C chemokine ligand 23 (CCL23), also known as myeloid progenitor inhibitory factor 1 or macrophage inflammatory protein, acts as a pivotal chemokine involved in inflammation and host defense response.[23] It recruits and attracts immune cells to injury or infection sites, stimulates the release of pro-inflammatory cytokines, and induces the expression of adhesion molecules, thereby participating in the inflammatory response.[24] CCL23 serves as a biomarker involved in the progression of various inflammatory diseases.