Matrix metalloproteinases are [[enzymes]] that can break down proteins, such as collagen, that are normally found in the spaces between [[cell]]s in tissues (i.e., extracellular matrix proteins). Because these enzymes need zinc or calcium atoms to work properly, they are called metalloproteinases. Matrix metalloproteinases are involved in wound healing, angiogenesis, and tumor cell metastasis. | Matrix metalloproteinases are [[enzymes]] that can break down proteins, such as collagen, that are normally found in the spaces between [[cell]]s in tissues (i.e., extracellular matrix proteins). Because these enzymes need zinc or calcium atoms to work properly, they are called metalloproteinases. Matrix metalloproteinases are involved in wound healing, angiogenesis, and tumor cell metastasis. |