2704
In this study , we showed that Wnt / beta - catenin signaling is active in various osteoblast or osteoblast precursor cell lines , including MC3T3 - E1 , 2T3 , C2C12 , and C3H10T1 / 2 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