1496
In order to study whether ATX expression affects motility - dependent processes such as invasion and metastasis , we stably transfected full - length ATX cDNA into two non - expressing cell lines , parental and ras - transformed NIH3T3 ( clone7 ) cells .
 cell lines, NIH3T3 ( clone7 ) cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 cell lines, NIH3T3 ( clone7 ) cells