1929
Up - regulation of MMP activity , favoring proteolytic degradation of the basement membrane and extracellular matrix , has been linked to tumor growth and metastasis , as well as tumor - associated angiogenesis , whereas inhibition of MMP activity appears to restrict these processes .
 basement membrane, extracellular matrix, tumor, tumor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 basement membrane, extracellular matrix, tumor, tumor