Decreased numbers of circulating plasmablasts and differences in IgA1-plasmablast homing to skin in coeliac disease and dermatitis herpetiformis

Autor: T. Reunala, Heikki Arvilommi, M. Westerholm-Ormio, Anu Kantele, Erkki Savilahti, Sari H. Pakkanen, Jussi M. Kantele
Rok vydání: 2009
Předmět:
Zdroj: Clinical and Experimental Immunology. 156:535-541
ISSN: 1365-2249
0009-9104
DOI: 10.1111/j.1365-2249.2009.03922.x
Popis: SummaryThe two clinical phenotypes of gluten enteropathy, coeliac disease (CD) and dermatitis herpetiformis (DH), were characterized for numbers and homing profiles of circulating final effector B cells, plasmablasts, identified as immunoglobulin (Ig)-secreting cells (ISC). In CD, the numbers of ISC were ∼50% lower than in DH or controls. ISC expressed peripheral lymph node homing receptor (HR), L-selectin, less frequently in CD (54%) and DH (52%) patients than in controls (70%). The expression of gut mucosal HR, α4β7, was less frequent in CD (42%) than in DH (65%) or controls (60%). In DH, but not in CD or controls, a higher proportion of IgA1-ISC (40%) than IgA2-ISC (25%) expressed the skin HR, cutaneous lymphocyte-associated antigen. In gluten enteropathy circulating plasmablasts are more mature, but decreased in number, and have distorted homing profiles. Differential IgA1-plasmablast homing could be associated with the development of skin rash with IgA1-deposits in DH but not in CD.
Databáze: OpenAIRE