26459
Cell invasion , adhesion and migration were also attenuated in shTRPC2 cells , probably due to decreased activity of both Rac and calpain , and a decreased secretion and activity of matrix metalloproteinase 2 .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None