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To identify the underlying mechanism involved in such growth - factor / serum independent growth of Galpha ( 12 ) QL - transformed NIH3T3 , we carried out a two - dimensional differential proteome analysis of Galpha ( 12 ) QL - transformed NIH3T3 cells and cells expressing vector control .
 serum, NIH3T3, NIH3T3 cells, cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 serum, NIH3T3, NIH3T3 cells, cells