21871
The polysaccharides also activated the mitochondria - mediated apoptosis pathway by stimulating the activation of Bcl - 2 family proteins to release cytochrome c and Smac and cleave caspase - 9 and caspase - 3 in HepG2 and Bel - 7404 cells .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None