TSP1-producing B cells show immune regulatory property and suppress allergy-related mucosal inflammation

Inflammation 0301 basic medicine B-Lymphocytes Cholera Toxin Mice, Inbred BALB C Interleukin-13 Ovalbumin Dendritic Cells Lymphocyte Activation T-Lymphocytes, Regulatory Article 3. Good health Intestines Mice 03 medical and health sciences B7-1 Antigen Immune Tolerance Receptors, Complement 3b Animals B7-2 Antigen Immunotherapy Interleukin-4 Interleukin-5 Food Hypersensitivity
DOI: 10.1038/srep03345 Publication Date: 2013-11-26T10:11:55Z
ABSTRACT
Specific immunotherapy (SIT) is the only specific remedy for the treatment of allergic diseases currently. B cells are important immune cells in the immunity. The role of B cells in immune regulatory activities has not been fully understood yet. This study aims to elucidate the role of the thrombospondin (TSP)1-producing B cells in the immune regulatory role of SIT. The results showed that after SIT, the frequency of CD35(+) B cells was increased in the intestine of mice with food allergy. The CD35(+) B cells expressed TSP1 after exposure to specific antigens. Co-culture with the TSP1-producing CD35(+) B cells decreased the levels of CD80/CD86 in dendritic cells; the cells convert naïve CD4(+) T cells to regulatory T cells to inhibit allergic inflammation in the intestine.
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