4885
CIITA mRNA is normally inducible by IFN - gamma in class II non - inducible , RB - defective lines , and in one line , re - expression of RB has no effect on CIITA mRNA induction levels .
 CIITA mRNA, IFN - gamma, RB, CIITA mRNA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 CIITA mRNA, IFN - gamma, RB, CIITA mRNA