| Author | Teles, Rosane M. B. | |
| Author | Teles, Rose B. | |
| Author | Amadeu, Thais P. | |
| Author | Moura, Danielle F. | |
| Author | Lima, Leila Mendonça | |
| Author | Ferreira, Helen | |
| Author | Santos, Italo M. C. F. | |
| Author | Nery, José A. C. | |
| Author | Sarno, Euzenir N. | |
| Author | Sampaio, Elizabeth P. | |
| Access date | 2017-10-24T11:55:08Z | |
| Available date | 2017-10-24T11:55:08Z | |
| Document date | 2010 | |
| Citation | TELES, Rosane M. B. et al. High Matrix Metalloproteinase Production Correlates with Immune Activation and Leukocyte Migration in Leprosy Reactional Lesions. Infection and Immunity, v.78, n.3, p.1012-1021, Mar. 2010. | pt_BR |
| ISSN | 0019-9567 | pt_BR |
| URI | https://www.arca.fiocruz.br/handle/icict/22917 | |
| Language | eng | pt_BR |
| Publisher | American Society for Microbiology | pt_BR |
| Rights | open access | |
| Subject in Portuguese | Metaloproteinases da Matriz | pt_BR |
| Subject in Portuguese | Hanseníase | pt_BR |
| Subject in Portuguese | Terapia | pt_BR |
| Subject in Portuguese | Ativação imune | pt_BR |
| Subject in Portuguese | Migração de leucócitos | pt_BR |
| Title | High matrix metalloproteinase production correlates with immune activation and leukocyte migration in leprosy reactional lesions | pt_BR |
| Type | Article | |
| DOI | 10.1128/IAI.00896-09 | |
| Abstract | Gelatinases A and B (matrix metalloproteinase 2 [MMP-2] and MMP-9, respectively) can induce basal membrane breakdown and leukocyte migration, but their role in leprosy skin inflammation remains unclear. In this study, we analyzed clinical specimens from leprosy patients taken from stable, untreated skin lesions and during reactional episodes (reversal reaction [RR] and erythema nodosum leprosum [ENL]). The participation of MMPs in disease was suggested by (i) increased MMP mRNA expression levels in skin biopsy specimens correlating with the expression of gamma interferon (IFN-gamma) and tumor necrosis factor alpha (TNF-alpha), (ii) the detection of the MMP protein and enzymatic activity within the inflammatory infiltrate, (iii) increased MMP levels in patient sera, and (iv) the in vitro induction of MMP-9 by Mycobacterium leprae and/or TNF-alpha. It was observed that IFN-gamma, TNF-alpha, MMP-2, and MMP-9 mRNA levels were higher in tuberculoid than lepromatous lesions. In contrast, interleukin-10 and tissue inhibitor of MMP (TIMP-1) message were not differentially modulated. These data correlated with the detection of the MMP protein evidenced by immunohistochemistry and confocal microscopy. When RR and ENL lesions were analyzed, an increase in TNF-alpha, MMP-2, and MMP-9, but not TIMP-1, mRNA levels was observed together with stronger MMP activity (zymography/in situ zymography). Moreover, following in vitro stimulation of peripheral blood cells, M. leprae induced the expression of MMP-9 (mRNA and protein) in cultured cells. Overall, the present data demonstrate an enhanced MMP/TIMP-1 ratio in the inflammatory states of leprosy and point to potential mechanisms for tissue damage. These results pave the way toward the application of new therapeutic interventions for leprosy reactions. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ. Brasil / Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Genômica Funcional e Bioinformática. Ri de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Universidade do Estado do Rio de Janeiro. Departamento de HIstologia e Embriologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Subject | Matrix Metalloproteinases | pt_BR |
| Subject | Leprosy | pt_BR |
| Subject | Therapeutic | pt_BR |
| Subject | Immune Activation | pt_BR |
| Subject | Leukocyte Migration | pt_BR |
| Subject | Reactional Lesions | pt_BR |
