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Cxcl14

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Cxcl14

chemokine (C-X-C motif) ligand 14
Identifiers
Symbol CXCL14
Alt. symbols SCYB14, BRAK, NJAC, bolekine, Kec, MIP-2g, BMAC, KS1
Entrez 9547
HUGO 10640
OMIM 604186
PDB 2HDL (RCSB PDB PDBe PDBj)
RefSeq NM_004887
UniProt O95715
Other data
Locus Chr. 5 q31

Chemokine (C-X-C motif) ligand 14 (CXCL14) is a small cytokine belonging to the CXC chemokine family that is also known as BRAK (for breast and kidney-expressed chemokine).[1] Mature CXCL14 has many of the conserved features of the CXC chemokine subfamily but has some differences too, such as a shorter N-terminus and five extra amino acids in the region between its third and fourth cysteines.[1] CXCL14 is constitutively expressed at high levels in many normal tissues, where its cellular source is thought to be fibroblasts.[2] However, it is reduced or absent from most cancer cells.[1][3] This chemokine is chemotactic for monocytes and can activate these cells in the presence of an inflammatory mediator called prostaglandin-E2 (PGE2).[2] It is also a potent chemoattractant and activator of dendritic cells, is implicated in homing of these cells,[4] and can stimulate the migration of activated NK cells.[5] CXCL14 also inhibits angiogenesis, possibly as a result of its ability to block endothelial cell chemotaxis.[6] The gene for CXCL14 contains four exons and is located on chromosome 5 in humans.[1]

References

  1. ^ a b c d Hromas, R.; Broxmeyer, H. E.; Kim, C.; Nakshatri, H.; Christopherson, K., II; Azam, M.; Hou, Y.-H. Cloning of BRAK, a novel divergent CXC chemokine preferentially expressed in normal versus malignant cells. Biochem. Biophys. Res. Commun. 255: 703-706, 1999. PubMed ID : 10049774
  2. ^ a b Kurth, I.; Willimann, K.; Schaerli, P.; Hunziker, T.; Clark-Lewis, I.; Moser, B. Monocyte selectivity and tissue localization suggests a role for breast and kidney-expressed chemokine (BRAK) in macrophage development. J. Exp. Med. 194: 855-861, 2001. PubMed ID : 11561000
  3. ^ Frederick, M. J.; Henderson, Y.; Xu, X.; Deavers, M. T.; Sahin, A. A.; Wu, H.; Lewis, D. E.; El-Naggar, A. K.; Clayman, G. L. In vivo expression of the novel CXC chemokine BRAK in normal and cancerous human tissue. Am. J. Path. 156: 1937-1950, 2000. PubMed ID : 10854217
  4. ^ Shurin, G. V.; Ferris, R.; Tourkova, I. L.; Perez, L.; Lokshin, A.; Balkir, L.; Collins, B.; Chatta, G. S.; Shurin, M. R. Loss of new chemokine CXCL14 in tumor tissue is associated with low infiltration by dendritic cells (DC), while restoration of human CXCL14 expression in tumor cells causes attraction of DC both in vitro and in vivo. J. Immun. 174: 5490-5498, 2005. PubMed ID : 15843547
  5. ^ Starnes T, Rasila KK, Robertson MJ, Brahmi Z, Dahl R, Christopherson K, Hromas R. The chemokine CXCL14 (BRAK) stimulates activated NK cell migration: implications for the downregulation of CXCL14 in malignancy. Exp Hematol. 2006 Aug;34(8):1101-5. PMID 16863917
  6. ^ Shellenberger TD, Wang M, Gujrati M, Jayakumar A, Strieter RM, Burdick MD, Ioannides CG, Efferson CL, El-Naggar AK, Roberts D, Clayman GL, Frederick MJ. BRAK/CXCL14 is a potent inhibitor of angiogenesis and a chemotactic factor for immature dendritic cells. Cancer Res. 2004 Nov 15;64(22):8262-70. PMID 15548693
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