25941
The transcription factor cyclic AMP responsive element binding protein ( CREB ) and activating transcription factors ( ATFs ) are downstream components of the insulin / IGF cascade , playing crucial roles in maintaining cell viability and embryo survival .
 Chemical: cyclic AMP
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: cyclic AMP