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Treatment of RWLeu-4 cells with VD3 induced 24R-hydroxylase activity , a marker of vitamin D3 responsiveness in many tissues.
 protein: 24R-hydroxylase; cell line: RWLeu-4 cells
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: 24R-hydroxylase; cell line: RWLeu-4 cells