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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Expression of alveolar macrophage adhesion molecules in pulmonary sarcoidosis.

Beta-2-integrins belong to a family of leukocyte surface glycoproteins that are essential for immune functions of bronchoalveolar cells. The expression of three alpha chains designed as CD11a, CD11b, CD11c, a common beta chain CD18, and of a ligand for several integrins CD54 (ICAM-1) was studied on alveolar macrophages of patients with active and inactive sarcoidosis and in control subjects. The percentage of macrophages expressing CD11b ( CR3) was significantly increased in patients with active sarcoidosis compared with patients who had inactive disease and control subjects. The adhesion molecule CD54 (ICAM-1) was detected on a higher percentage of alveolar macrophages in patients with active rather than inactive sarcoidosis and in control subjects. Since integrin-mediated adhesion seems to be important in macrophage-lymphocyte interactions during the immune response, higher expression of both CD11b and CD54 on sarcoid alveolar macrophages may be related to several immune abnormalities reported in pulmonary sarcoidosis.[1]

References

  1. Expression of alveolar macrophage adhesion molecules in pulmonary sarcoidosis. Striz, I., Wang, Y.M., Kalaycioglu, O., Costabel, U. Chest (1992) [Pubmed]
 
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