Infection of Schistosomiasis japanicum is likely to enhance proliferation and migration of human breast cancer cells: mechanism of action of differential expression of MMP2 and MMP9
Asian Pacific Journal of Tropical Biomedicine
;
(12): 23-28, 2011.
Artigo
em Inglês
| WPRIM
| ID: wpr-335069
ABSTRACT
<p><b>OBJECTIVE</b>To study whether the infection of Schistosomiasis japanicum (S. japanicum) is related to enhanced proliferation and migration of cancer cells, and the molecular mechanism pertains to cancer cell metastasis in human host.</p><p><b>METHODS</b>The gene of S. japanicum glutathione transferase (sjGST) cloned from S. japanicum was expressed, purified and applied in a series of assays to explore the effect of sjGST on proliferation and migration of MDA-MB-435S, and the expression of MMP2 and MMP9. Immunofluorescence assay for the binding of sjGST to MDA-MB-435S was also carried out.</p><p><b>RESULTS</b>Results showed that sjGST enhanced proliferation and migration in human breast cancer cell MDA-MB-435S signifycantly at 50-200 nM, but did not enhance them in human lung cancer cell A549. Immunofluorescence assay for the binding of sjGST to MDA-MB-435S and A549 showed that GST was readily bound to the breast cancer cells, but showed almost no binding to human lung cancer cells. The assays for gelatinase activity showed that both MMP2 and MMP9 activities were increased significantly in the presence of sjGST (50-200 nM) in MDA-MB-435S, but they were not significant in A549.</p><p><b>CONCLUSIONS</b>Our current results show strongly that S. japanicum GST binds to MDA-MB-435S probably via its receptor, and enhances proliferation and migration of the cancer cells by up-regulatory expression of MMP2 and MMP9.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Farmacologia
/
Esquistossomose Japônica
/
Proteínas Recombinantes
/
Neoplasias da Mama
/
Proteínas de Protozoários
/
Movimento Celular
/
Metaloproteinase 2 da Matriz
/
Metaloproteinase 9 da Matriz
/
Linhagem Celular Tumoral
/
Proliferação de Células
Limite:
Humanos
Idioma:
Inglês
Revista:
Asian Pacific Journal of Tropical Biomedicine
Ano de publicação:
2011
Tipo de documento:
Artigo
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