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Melgarejo E Medina MA Sánchez-Jiménez F Botana LM Domínguez M Escribano L Orfao A Urdiales JL 《Cellular and molecular life sciences : CMLS》2007,64(19-20):2690-2701
Mast cells are multipotent effector cells of the immune system. They are able to induce and enhance angiogenesis via multiple pathways. (-)-Epigallocatechin-3-gallate (EGCG), a major component of green tea and a putative chemopreventive agent, was reported to inhibit tumor invasion and angiogenesis, processes that are essential for tumor growth and metastasis. Using the human mast cell line HMC-1 and commercial cDNA macroarrays, we evaluated the effect of EGCG on the expression of angiogenesis-related genes. Our data show that among other effects, EGCG treatment reduces expression of two integrins (alpha5 and beta3) and a chemokine (MCP1), resulting in a lower adhesion of mast cells associated with a decreased potential to produce signals eliciting monocyte recruitment. These effects on gene expression levels are functionally validated by showing inhibitory effects in adhesion, aggregation, migration and recruitment assays. 相似文献
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