2089
Parental and vector - transfected MCF7 cells , which were sensitive to the growth - inhibitory effects of atRA , exhibited atRA - dependent retinoic acid receptor ( RAR ) transactivation and transrepression of 12 - O - tetradecanoylphorbol - 13 - acetate - induced AP - 1 activity .
 GENE: retinoic acid receptor; GENE: RAR; GENE: AP - 1
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: retinoic acid receptor; GENE: RAR; GENE: AP - 1