Modulators of intracellular Ca2+ and the calmodulin inhibitor W-7 alter the expression of metastasis-associated genes MTS1 and NM23 in metastatic variants of the B16 murine melanoma.

Abstract excerpt

MTS1 is a metastasis-associated gene highly expressed in highly metastatic tumours. NM23 has been described as a putative metastasis suppressor gene. Here we show that thapsigargin (which raises intracellular calcium [Ca2+]i from intracellular stores) and verapamil (which blocks Ca2+ influx) both down-regulate MTS1 and NM23 gene expression in the poorly metastatic F1 and highly metastatic ML8 variants of the B16...

Topics

• Animals
• Blotting, Northern
• Calcium
• Calmodulin
• Female
• Gene Expression
• Genetic Variation
• Lung Neoplasms
• Melanoma, Experimental
• Mice
• Mice, Inbred C57BL