Plasma soluble human leukocyte antigen G levels in asthmatic children

Tahan F. , Patiroglu T.

INTERNATIONAL ARCHIVES OF ALLERGY AND IMMUNOLOGY, cilt.141, sa.3, ss.213-216, 2006 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 141 Konu: 3
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1159/000095290
  • Sayfa Sayıları: ss.213-216


Background: Human leukocyte antigen G (HLA-G) is a non-classical major histocompatibility complex class I gene. HLA-G stimulates Th2 cytokine secretion by peripheral blood mononuclear cells. The role of soluble HLA-G (sHLA-G) in bronchial asthma is incompletely understood and the plasma level of sHLA-G in asthmatic children has not been investigated. Objective: It was the aim of this study to investigate the plasma level of sHLA-G in asthmatic children. Methods: Asthmatic (n = 53) and healthy children (n = 16) were included in the study. Levels of sHLA-G were determined in plasma using ELISA. Spirometry, total immunoglobulin E and eosinophil counts were obtained and skin testing done with a battery of 25 antigens with appropriate positive and negative controls. Results: No significant difference was observed in the plasma level of sHLA-G between the asthmatic and healthy children (p > 0.05). When we compared atopic asthmatics with healthy controls, we found significantly higher levels of sHLA-G in atopic asthmatics (p < 0.05). There was a significant difference in the peripheral blood eosinophil counts and total immunoglobulin E levels among the groups (p < 0.001). Conclusion: Our study shows that plasma sHLA-G levels do not differ between asthmatic children and healthy controls. However, higher plasma levels of sHLA-G in atopic asthmatics may suggest a role for sHLA-G in atopy. Further investigations are required to better define the mechanism of the production and the role of sHLA-G molecules observed in patients with asthma. Copyright (c) 2006 S. Karger AG, Basel