RESUMO
<p><b>OBJECTIVE</b>To investigate the degradation of artificial basement membrane (matrigel) co-cultured with oral carcinoma-associated fibroblasts (CAFs) and its possible mechanism.</p><p><b>METHODS</b>CAFs and normal fibroblasts (NFs) were incubated on matrigel for 24, 48, 72 h. Equivalent amounts of conditioned medium were collected and assayed for total protein, hydroxyproline and matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-9 (MMP-9) activity by gelatin zymography.</p><p><b>RESULTS</b>Oral CAFs were superior to oral NFs in total protein and hydroxyproline density, CAFs present more pro-MMP-2 and activated MMP-2.</p><p><b>CONCLUSION</b>CAFs were superior to NFs in degradation of matrigel. CAFs might play a key role in the reconstitution of extracellular matrix and the progression of tumor.</p>
Assuntos
Humanos , Membrana Basal , Técnicas de Cocultura , Precursores Enzimáticos , Fibroblastos , Gelatinases , Metaloproteinase 2 da Matriz , Metaloproteinase 9 da Matriz , Membranas Artificiais , Neoplasias BucaisRESUMO
Systemic thalidomide has good effect on refractory chronic discoid lupus erythematosus (CDLE) whereas topical regimen of it has not been reported previously. In this paper, a case of refractory CDLE cured with topical thalidomide in clinic was reported and the feasibility of topical therapy was reviewed.