The CCL13 antibody targets chemokine (C-C motif) ligand 13 (CCL13), a small secretory protein belonging to the CC chemokine subfamily. CCL13. also known as monocyte chemoattractant protein-4 (MCP-4), is produced by immune and stromal cells in response to inflammatory stimuli. It binds to chemokine receptors CCR2. CCR3. and CCR5. mediating leukocyte recruitment, particularly monocytes, eosinophils, and T cells, to sites of inflammation or injury. CCL13 plays roles in chronic inflammatory diseases, including asthma, allergies, fibrosis, and cancer, where it may promote tumor angiogenesis and metastasis. Antibodies against CCL13 are valuable tools for studying its expression, signaling pathways, and pathological mechanisms. They are used in applications like ELISA, immunohistochemistry, and flow cytometry to quantify protein levels or block CCL13-receptor interactions in experimental models. Therapeutic development of CCL13-neutralizing antibodies is under exploration for conditions involving dysregulated inflammation or immune cell infiltration. However, challenges remain in optimizing specificity and minimizing off-target effects due to overlapping receptor usage among chemokines. Research continues to clarify its context-dependent roles and validate CCL13 as a biomarker or therapeutic target.