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To explore the potential of chemotherapy directed at the tyrosine kinase of p185neu , we have found that emodin ( 3 - methyl - 1 , 6 , 8 - trihydroxyanthraquinone ) , a tyrosine kinase inhibitor , suppresses autophosphorylation and transphosphorylation activities of HER - 2 / neu tyrosine kinase , resulting in tyrosine hypophosphorylation of p185neu in HER - 2 / neu - overexpressing breast cancer cells .
 Anatomy: breast cancer cells
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: breast cancer cells