11432
Inhibition of the Mek / Erk pathway in Rat1 / ras cells , using the Mek inhibitor , PD98059 , resulted in complete cytoskeletal recovery , indistinguishable from that induced by HR12 .
 Mek, Erk, ras, Mek
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 Mek, Erk, ras, Mek