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By using in vitro and in vivo systems involving a highly metastatic mouse B16 melanoma cell line [ 25 ] , we found that ATRA enhances the antitumor activity of EGCG by upregulating the 67 LR expression through RAR .
 Anatomy: B16 melanoma cell line; Anatomy: antitumor
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: B16 melanoma cell line; Anatomy: antitumor