1906
In contrast , NIH 3T3 cells are non - tumorigenic but are ras - responsive and become metastatic when transfected with ras .
 Anatomy: NIH 3T3 cells
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: NIH 3T3 cells