| First Author | Moreira AP | Year | 2006 |
| Journal | Am J Pathol | Volume | 169 |
| Issue | 4 | Pages | 1270-81 |
| PubMed ID | 17003484 | Mgi Jnum | J:113377 |
| Mgi Id | MGI:3665531 | Doi | 10.2353/ajpath.2006.060271 |
| Citation | Moreira AP, et al. (2006) Intercellular adhesion molecule-1 is required for the early formation of granulomas and participates in the resistance of mice to the infection with the fungus Paracoccidioides brasiliensis. Am J Pathol 169(4):1270-81 |
| abstractText | The migration of leukocytes to inflammatory sites elicited by Paracoccidioides brasiliensis is supposed to be coordinated by cytokines and chemokines. Here, we investigated the role of intercellular adhesion molecule-1 (ICAM-1) in recruiting inflammatory cells to lungs of mice infected with P. brasiliensis and in determining the outcome of the disease. Expression of ICAM-1 was up-regulated on T lymphocytes after infection with the fungus, and its expression was dependent on interferon-gamma, tumor necrosis factor-alpha, and interleukin-12. Moreover, the absence of ICAM-1 resulted in high susceptibility to the infection and delayed formation of granulomatous lesions. In addition, the absence of ICAM-1 resulted in increased growth and dissemination of fungus, decreased number of CD3+CD4+ and CD3+CD8+ T cells, and increased production of interleukin-4 in the inflammatory site. The organization of a granulomatous reaction in mice deficient of ICAM-1 was delayed, starting only on day 60 after infection, whereas in wild-type mice it was complete on day 30 of infection. These data show that ICAM-1 is effectively involved in cellular migration and in the organization of the granulomatous lesion caused by the fungus P. brasiliensis. |
