446
To obtain information on the functional role of the Rac1 / p38 / MAPKAPK - 2 pathway in RA signaling , the effects of pharmacological inhibition of p38 on RA - induced gene transcription and cell differentiation were determined .
 GENE: Rac1; GENE: p38; GENE: MAPKAPK - 2; GENE: p38
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: Rac1; GENE: p38; GENE: MAPKAPK - 2; GENE: p38