7654
Taken together , these results indicate that IL - 6 occurs through ASK1 and p38 , which in turn activates AP - 1 , resulting in the activations of VEGF expression and contributing the angiogenesis of human osteosarcoma cells .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None