Value of ICAM-1 Expression and the Soluble ICAM-1(sICAM-1) Level as a Marker of Activity in Sarcoidosis: The Relationship Between the ICAM-1 Level and the Clinical Course of the Disease.

Kim, Dong Soon; Paik, Sang Hoon; Shim, Tae Sun; Lim, Chae Man; Lee, Sang Do; Koh, Youn Suck; Kim, Woo Sung; Kim, Won Dong

doi:1998.45.1.116

Tuberc Respir Dis > Volume 45(1); 1998 > Article

Original Article

Tuberculosis and Respiratory Diseases 1998;45(1):116-127.
DOI: https://doi.org/10.4046/trd.1998.45.1.116 Published online February 1, 1998.

Value of ICAM-1 Expression and the Soluble ICAM-1(sICAM-1) Level as a Marker of Activity in Sarcoidosis: The Relationship Between the ICAM-1 Level and the Clinical Course of the Disease.

Dong Soon Kim, Sang Hoon Paik, Tae Sun Shim, Chae Man Lim, Sang Do Lee, Youn Suck Koh, Woo Sung Kim, Won Dong Kim

¹Department of Internal Medicine, Asan Medical Center-Ulsan University, Korea.
²Asan Life Science Institute, Seoul, Korea.

Abstract

BACKGROUND
The natural course of sarcoidosis is variable from spontaneous remission to significant morbidity or death. So the assessment of disease activity is important but no single parameter was generally accepted as a good marker. Recently several studies suggested that adhesion molecules, especially ICAM-1 can be a marker, but there are some controversies. And only few data are available about the relationship of ICAM-1 with clinical follow-up course. METHOD: We measured the expression of adhesion molecules on BAL cells by flow cytometry and the level of soluble ICAM-1 (sICAM-1) in serum and BALF at the time of diagnosis in 12 patients with active disease and 7 inactive sarcoidosis(5 male, 14 female, mean age : 39.4+/-10.7 years, mean follpw-up 20+/-15 months). Follow-up clinical course were compared with the changes in serum sICAMA-1 level and the adhesion molecule on BAL cells. RESULTS: In the patients with active disease, the ICAM-1 on AM(RMFI 3.68+/-1.71) and sICAM-1 level in serum(582+/-193 ng/ml) and BAL fluid(47.8+/-16.5 ng/ml) were all higher than those of 7 inactive disease(RMFI :1.89+/-0.75, p=0.0298, serum : 294+/-117 ng/ml, p=0.0049, BALF : 20.9+/-8.3ng/ml). In the active sarcoidosis, ICAM-1 on AM(RMFI:1.51+/-0.84) and serum sICAM-1 were decreased after the therapy(250+/-147 ng/ml) but no significant change was noted in inactive disease. Also we found the initial ICAM-1 on AM and serum sICAM-1 had a significant correlation with the degree of improvement in PFT after the therapy. During the follow-up, the disease relapsed in 4 patients after the discontinuation of steroid and the serum sICAM-1 level went-up again at the time of relapse. CONCLUSION: Our data suggest that the serum sICAM-1 level and the JCAM-1 expression on AM can be a good marker of disease activity and also a predictor of outcome in sarcoidosis.