Chemokine (C-C motif) ligand 21 (CCL21) is a small cytokine belonging to the CC chemokine family. This chemokine is also known as 6Ckine (because it has six conserved cysteine residues instead of the four cysteines typical to chemokines), exodus-2, and secondary lymphoid-tissue chemokine (SLC).[1][2][3] The gene for CCL21 is located on human chromosome 9. CCL21 elicits its effects by binding to a cell surface chemokine receptor known as CCR7.[4]
↑Nagira M, Imai T, Hieshima K, Kusuda J, Ridanpää M, Takagi S, Nishimura M, Kakizaki M, Nomiyama H, Yoshie O (1997). "Molecular cloning of a novel human CC chemokine secondary lymphoid-tissue chemokine that is a potent chemoattractant for lymphocytes and mapped to chromosome 9p13". J. Biol. Chem. 272 (31): 19518–24. doi:10.1074/jbc.272.31.19518. PMID9235955.
↑Yoshida R, Nagira M, Kitaura M, Imagawa N, Imai T, Yoshie O (1998). "Secondary lymphoid-tissue chemokine is a functional ligand for the CC chemokine receptor CCR7". J. Biol. Chem. 273 (12): 7118–22. doi:10.1074/jbc.273.12.7118. PMID9507024.
Nagira M, Imai T, Hieshima K, et al. (1997). "Molecular cloning of a novel human CC chemokine secondary lymphoid-tissue chemokine that is a potent chemoattractant for lymphocytes and mapped to chromosome 9p13". J. Biol. Chem. 272 (31): 19518–24. doi:10.1074/jbc.272.31.19518. PMID9235955.
Hedrick JA, Zlotnik A (1997). "Identification and characterization of a novel beta chemokine containing six conserved cysteines". J. Immunol. 159 (4): 1589–93. PMID9257816.
Hromas R, Kim CH, Klemsz M, et al. (1997). "Isolation and characterization of Exodus-2, a novel C-C chemokine with a unique 37-amino acid carboxyl-terminal extension". J. Immunol. 159 (6): 2554–8. PMID9300671.
Yoshida R, Nagira M, Kitaura M, et al. (1998). "Secondary lymphoid-tissue chemokine is a functional ligand for the CC chemokine receptor CCR7". J. Biol. Chem. 273 (12): 7118–22. doi:10.1074/jbc.273.12.7118. PMID9507024.
Jenh CH, Cox MA, Kaminski H, et al. (1999). "Cutting edge: species specificity of the CC chemokine 6Ckine signaling through the CXC chemokine receptor CXCR3: human 6Ckine is not a ligand for the human or mouse CXCR3 receptors". J. Immunol. 162 (7): 3765–9. PMID10201891.
Gosling J, Dairaghi DJ, Wang Y, et al. (2000). "Cutting edge: identification of a novel chemokine receptor that binds dendritic cell- and T cell-active chemokines including ELC, SLC, and TECK". J. Immunol. 164 (6): 2851–6. doi:10.4049/jimmunol.164.6.2851. PMID10706668.
Annunziato F, Romagnani P, Cosmi L, et al. (2000). "Macrophage-derived chemokine and EBI1-ligand chemokine attract human thymocytes in different stage of development and are produced by distinct subsets of medullary epithelial cells: possible implications for negative selection". J. Immunol. 165 (1): 238–46. doi:10.4049/jimmunol.165.1.238. PMID10861057.
Hirose J, Kawashima H, Yoshie O, et al. (2001). "Versican interacts with chemokines and modulates cellular responses". J. Biol. Chem. 276 (7): 5228–34. doi:10.1074/jbc.M007542200. PMID11083865.
Till KJ, Lin K, Zuzel M, Cawley JC (2002). "The chemokine receptor CCR7 and alpha4 integrin are important for migration of chronic lymphocytic leukemia cells into lymph nodes". Blood. 99 (8): 2977–84. doi:10.1182/blood.V99.8.2977. PMID11929789.
Banas B, Wörnle M, Berger T, et al. (2002). "Roles of SLC/CCL21 and CCR7 in human kidney for mesangial proliferation, migration, apoptosis, and tissue homeostasis". J. Immunol. 168 (9): 4301–7. doi:10.4049/jimmunol.168.9.4301. PMID11970971.
Christopherson KW, Hood AF, Travers JB, et al. (2003). "Endothelial induction of the T-cell chemokine CCL21 in T-cell autoimmune diseases". Blood. 101 (3): 801–6. doi:10.1182/blood-2002-05-1586. PMID12393410.
Stein JV, Soriano SF, M'rini C, et al. (2003). "CCR7-mediated physiological lymphocyte homing involves activation of a tyrosine kinase pathway". Blood. 101 (1): 38–44. doi:10.1182/blood-2002-03-0841. PMID12393730.
Weninger W, Carlsen HS, Goodarzi M, et al. (2003). "Naive T cell recruitment to nonlymphoid tissues: a role for endothelium-expressed CC chemokine ligand 21 in autoimmune disease and lymphoid neogenesis". J. Immunol. 170 (9): 4638–48. doi:10.4049/jimmunol.170.9.4638. PMID12707342.
Nagakubo D, Murai T, Tanaka T, et al. (2003). "A high endothelial venule secretory protein, mac25/angiomodulin, interacts with multiple high endothelial venule-associated molecules including chemokines". J. Immunol. 171 (2): 553–61. doi:10.4049/jimmunol.171.2.553. PMID12847218.