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We used mononuclear cell priming cultures and inflammatory synovial fluids ( SFs ) derived from arthritis patients to examine the regulation of cytokine production and STAT activity by an inflammatory synovial microenvironment .
 protein: cytokine; protein: STAT; cell line: mononuclear cell priming cultures; cell type: inflammatory synovial fluids; cell type: SFs
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: cytokine; protein: STAT; cell line: mononuclear cell priming cultures; cell type: inflammatory synovial fluids; cell type: SFs