CXCL2
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Chemokine (C-X-C motif) ligand 2 (CXCL2) is a small cytokine belonging to the CXC chemokine family that is also called macrophage inflammatory protein 2-alpha (MIP2-alpha), Growth-regulated protein beta (Gro-beta) and Gro oncogene-2 (Gro-2). CXCL2 is 90% identical in amino acid sequence as a related chemokine, CXCL1. This chemokine is secreted by monocytes and macrophages and is chemotactic for polymorphonuclear leukocytes and hematopoietic stem cells.[1][2][3] The gene for CXCL2 is located on human chromosome 4 in a cluster of other CXC chemokines.[4] CXCL2 mobilizes cells by interacting with a cell surface chemokine receptor called CXCR2.[3]
CXCL2, like related chemokines, is also a powerful neutrophil chemoattractant and is involved in many immune responses including wound healing, cancer metastasis, and angiogenesis.[5] A study was published in 2013 testing the role of CXCL2, CXCL3, and CXCL1 in the migration of airway smooth muscle cells (ASMCs) migration which plays a significant role in asthma. The results of this study showed that CXCL2 and CXCL3 both help with the mediation of normal and asthmatic ASMC migration through different mechanisms.[5]
Clinical development
CXCL2 in combination with the CXCR4 inhibitor plerixafor rapidly mobilizes hematopoietic stem cells into the peripheral blood.[6]
This rapid peripheral blood stem cell mobilization regimen entered Phase 2 clinical trials in 2021[7][8] in development by Magenta Therapeutics[9] as a new method to collect stem cells for bone marrow transplantation.
References
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- ↑ Clinical trial number NCT04762875 for "A Phase II Study Evaluating the Safety and Efficacy of MGTA-145 in Combination With Plerixafor for the Mobilization and Transplantation of HLA-Matched Donor Hematopoietic Stem Cells in Recipients With Hematological Malignancies" at ClinicalTrials.gov
- ↑ Clinical trial number NCT04552743 for "Phase II Study of MGTA-145 in Combination With Plerixafor in the Mobilization of Hematopoietic Stem Cells for Autologous Transplantation in Patients With Multiple Myeloma" at ClinicalTrials.gov
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