CXC chemokine ligand 10 (CXCL10), also known as interferon-gamma-induced protein 10 (IP-10), belongs to the CXC non-ELR subfamily of chemokines. It is induced by interferon-gamma and can attract a variety of inflammatory cells, such as T lymphocytes, monocytes, and natural killer cells. The production mechanism of CXCL10/IP-10: CXCL10/IP-10 production is not spontaneous; it is driven by the powerful action of interferon-gamma (IFN-γ). Once the body detects the invasion of foreign pathogens or the appearance of abnormal cells, the immune system quickly sounds the alarm and secretes IFN-γ. Under the command of this “commander,” numerous cells, including monocytes, endothelial cells, and fibroblasts, respond. Like well-trained soldiers, these cells systematically synthesize and secrete CXCL10/IP-10, activating a crucial defense mechanism against foreign enemies. Classification of the CXC Chemokine Family: The CXC chemokine family, a key branch of the chemokine superfamily, is also known as the CXC chemokine subfamily or α subfamily. Members of this family each have distinct characteristics and can be further divided into two camps: ELR-positive and ELR-negative, based on the number and spacing of N-terminal cysteines in the peptide chain, as well as specific functional sequences. ELR-positive chemokines: These chemokines possess an ELR (glutamic acid-leucine-arginine) sequence preceding the CXC motif, giving them a unique signature. They serve as “guides” for neutrophils, their primary function being to induce neutrophil migration. During acute inflammatory responses, they bind tightly to the CXCR1 and CXCR2 receptors, rapidly recruiting large numbers of neutrophils to the front lines of inflammation, where they bravely fight the enemy and contribute significantly to the body’s health. ELR-negative chemokines: Unlike ELR-positive chemokines, ELR-negative chemokines lack the distinctive ELR marker in their sequences. They employ a unique approach, primarily exerting their “attraction” on lymphocytes, achieving chemotaxis. CXCL10/IP-10, a prime example of an ELR-negative chemokine, plays a unique role and mode of action in the immune system. To unleash its powerful biological functions, the receptor for CXCL10/IP-10, CXCL10/IP-10, relies on a tacit collaboration with the CXCR3 receptor. The CXCR3 receptor is a transmembrane protein tightly linked to a GTPase, acting as a bridge between CXCL10/IP-10 and internal signaling pathways within the cell. The CXCR3 receptor is primarily located on the surfaces of activated T cells, B cells, natural killer (NK) cells, dendritic cells, and macrophages, always poised to welcome the arrival of CXCL10/IP-10. Functions of CXCL10/IP-10: CXCL10/IP-10 possesses powerful chemotactic properties, precisely “summoning” CXCR3+ cells, such as monocytes/macrophages, T cells, NK cells, and dendritic cells. Attracted by CXCL10/IP-10, these cells often migrate to sites of inflammation or around tumor tissues, participating in crucial physiological processes such as immune defense and tumor immunosurveillance. CXCL10/IP-10 not only activates a variety of immune cells, including T lymphocytes (Th1), NK cells, macrophages, dendritic cells, and B cells, enhancing the overall immune response, but also subtly increases CXCR3 receptor expression. This attracts and further activates more CXCR3-positive immune cells to sites of inflammation and lymphoid tissue, forming a highly effective immune regulatory network.Paclitaxel Autophagy CXCL10/IP-10 also plays an important role in anti-tumor activities and possesses certain anti-tumor activity.MG-132 Purity It is like a sharp “double-edged sword.PMID:35149226 ” On the one hand, it can inhibit bone marrow colony formation, depriving tumor cells of their “nurturing ground”; on the other hand, it can inhibit angiogenesis, cutting off the “nutrient supply line” of tumor tissue, thereby effectively inhibiting tumor growth and metastasis.In particular, CXCL10, an ELR-negative chemokine, plays a key role in inhibiting tumor angiogenesis as an angiostatic chemokine. CXCL10/IP-10 inhibits viral replication, preventing it from multiplying in the body. It also effectively curbs viral-induced inflammatory responses, reduces tissue damage, and enhances the body’s antiviral immunity. When an individual is unfortunately infected with a virus, bacteria, fungus, or parasite, CXCL10/IP-10 levels in body fluids rapidly rise, acting like a “beacon,” sending a strong warning signal to the body. In addition to these functions, CXCL10/IP-10 also plays a role in regulating cell growth and proliferation. It can precisely control cell growth rate and proliferation according to the body’s needs. Furthermore, in certain circumstances, it can induce apoptosis, promptly eliminating damaged, aging, or abnormal cells from the body and maintaining a stable internal environment. Because CXCL10/IP-10 plays such an important role in the pathogenesis of infectious and inflammatory diseases and cancer, it has become the focus of many researchers and medical workers.MedChemExpress (MCE) offers a wide range of high-quality research chemicals and biochemicals (novel life-science reagents, reference compounds and natural compounds) for scientific use. 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