CCL28

CCL28
Estructuras disponibles
PDB Buscar ortólogos: PDBe, RCSB
Identificadores
Símbolo CCL28 (HGNC: 17700)
Identificadores
externos
Locus Cr. 5 p12
Ortólogos
Especies
Humano Ratón
Entrez
56477
UniProt
Q9NRJ3 n/a
RefSeq
(ARNm)
NM_148672 n/a

CCL28, también conocida como quimioquina epitelial mucosa-asociada (MEC), CCK1 y SCYA28, es una quimiocina. CCL28 regula la quimiotaxis de las células que expresan los receptores de quimioquinas CCR3 y CCR10. CCL28 se expresa por las células epiteliales columnares en el intestino, de pulmón, de mama y de las glándulas salivales y acciona la mucosa de linfocitos T y B que expresan CCR10, y la migración de eosinófilos que expresan CCR3.[1][2][3]​ Esta quimioquina se expresa constitutivamente en el colon, pero sus niveles se pueden aumentar por las citocinas pro-inflamatorias y ciertos productos bacterianos implican un papel en el reclutamiento de células efectoras a los sitios de lesión epitelial.[4]​ CCL28 también ha sido implicada en la migración de células que expresan IgA a la glándula mamaria,[5]​ la glándula salival, el intestino[6]​ y otros tejidos de las mucosas.[7]​ También se ha mostrado como un agente antimicrobiano potencial efectivo contra ciertos patógenos, tales como bacterias Gram positivas y Gram negativas y el hongo Candida albicans.[8]

La CCL28 humana está codificada por un transcrito de ARN de 373 nucleótidos y un gen con cuatro exones. El gen codifica para una proteína de 127-aminoácido CCL28 con un péptido señal N-terminal de 22 aminoácidos. Se comparte la identidad de ácido nucleico 76% y 83% de similitud de aminoácidos de la molécula equivalente en ratón.[9][10]​ El análisis de secuencia ha revelado CCL28 a ser más similar a otra quimiocina CC llamada CCL27.

Referencias

  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. CCL28 controls immunoglobulin (Ig)A plasma cell accumulation in the lactating mammary gland and IgA antibody transfer to the neonate. J Exp Med. 20 de septiembre de 2004; 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. 15 de mayo de 2006;176(10):5749-59.
  7. Lazarus et al. A common mucosal chemokine (mucosae-associated epithelial chemokine/CCL28) selectively attracts IgA plasmablasts. J Immunol. 1 de abril de 2003; 170(7):3799-805
  8. Hieshima et al. CCL28 has dual roles in mucosal immunity as a chemokine with broad-spectrum antimicrobial activity. J Immunol. 1 de febrero de 2003; 170(3):1452-61.
  9. Wang et al. 2000, Identification of a novel chemokine (CCL28), which binds CCR10 (GPR2). J. Biol. Chem. 275: 22313–22323.
  10. Pan et al. 2000, A novel chemokine ligand for CCR10 and CCR3 expressed by epithelial cells in mucosal tissues, J. Immunol. 165: 2943–2949.

Enlaces externos

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