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CCL28

Hemokin (C-C motiv) ligand 28
Identifikatori
SimbolCCL28
Alt. simboliSCYA28, MEC, CCK1
Entrez56477
HUGO17700
OMIM605240
RefSeqNM_148672
UniProtQ9NRJ3
Ostali podaci
LokusHromozom 5 p12

CCL28, hemokin (C-C motiv) ligand 28, takođe poznat kao mukozni epitelijalni hemokin (MEC), CCK1 i SCYA28, je citokin. CCL28 reguliše hemotaksu ćelija koje izražavaju hemokin receptore CCR3 i CCR10. CCL28 izražavaju epitelijalne ćelije u crevima, plućima, grudima i pljuvačnim žlezdamas. Ovaj hemokin privlači T i B limfocite koji izražavaju CCR10, kao i eozinofile koji izražavaju CCR3.[1][2][3] On je konstitutivno izražen u debelom crevu. Njegovi nivoi mogu biti povećani proinflamatornim citokinima i određenim bakterijskim produktima, što ukazuje na njegovu ulogu regrutovanja efektorskih ćelija na mesta povrede epitela.[4] CCL28 je bio impliciran u migraciju IgA-izražavajućih ćelija ka mlečnim žlezdama[5], pljuvačnim žlezdama, crevima[6] i drugim mukoznim tkivima.[7] Za njega je takođe bio pokazano da je potentan antimikrobni agens koji je efektivan protiv pojedinih patogena, kao što su pojedine vrste Gram negativnih i Gram pozitivnih bakterija i gljivica Candida albicans.[8][9]

Ljudski CCL28 je kodiran RNK transkriptom od 373 nukleotida i genom sa četiri eksona. Taj gen kodira 127-aminokiselinski CCL28 protein sa 22-aminokiselinskim N-terminalnim signalnim peptidom. On ima 76% nukleinsko kiselinskog identiteta i 83% aminokiselinske sličnosti sa ekvivalentnim molekulom kod miševa.[10][11] Analiza sekvence je pokazala da je CCL28 veoma sličan sa CC hemokinom CCL27.

  1. ^ Rodriguez; et al. (2004). „Differential gene expression by integrin 7+ and 7– memory T helper cells.”. BMC Immunol. 5 (13). 
  2. ^ Kunkel; et al. (2003). „CCR10 expression is a common feature of circulating and mucosal epithelial tissue IgA Ab-secreting cells.”. J. Clin. Invest. 111: 1001—1010. 
  3. ^ John; et al. (2005). „Temporal production of CCL28 corresponds to eosinophil accumulation and airway hyperreactivity in allergic airway inflammation”. Am. J. Pathol. 166: 345—353. 
  4. ^ Hieshima; et al. (2003). „CCL28 has dual roles in mucosal immunity as a chemokine with broad-spectrum antimicrobial activity.”. J. Immunol. 170: 1452—1461. 
  5. ^ Wilson and Butcher. (2004). „CCL28 controls immunoglobulin (Ig)A plasma cell accumulation in the lactating mammary gland and IgA antibody transfer to the neonate.”. Journal of Experimental Medicine. 200 (6): 805—9. 
  6. ^ Feng; et al. „Redundant role of chemokines CCL25/TECK and CCL28/MEC in IgA+ plasmablast recruitment to the intestinal lamina propria after rotavirus infection.”. J Immunol. 176 (10): 5749—59. 
  7. ^ Lazarus; et al. „A common mucosal chemokine (mucosae-associated epithelial chemokine/CCL28) selectively attracts IgA plasmablasts.”. J Immunol. 170 (7): 3799—805. 
  8. ^ Hieshima; et al. (2003). „CCL28 has dual roles in mucosal immunity as a chemokine with broad-spectrum antimicrobial activity”. J Immunol. 170 (3): 1452—61. 
  9. ^ Mire-Sluis, Anthony R.; Thorpe, Robin, ур. (1998). Cytokines (Handbook of Immunopharmacology). Boston: Academic Press. ISBN 0-12-498340-5. 
  10. ^ Wang; et al. (2000). „Identification of a novel chemokine (CCL28), which binds CCR10 (GPR2).”. J. Biol. Chem. 275: 22313—22323. 
  11. ^ Pan; et al. (2000). „A novel chemokine ligand for CCR10 and CCR3 expressed by epithelial cells in mucosal tissues”. J. Immunol. 165: 2943—2949. 
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CCL28
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