5978
Chemoattractants stimulate the expression of several inflammatory cytokines and chemokines , which in turn may activate their respective receptors and initiate an autocrine regulatory mechanism for persistent cytokine and chemokine gene expression .
 protein: chemokines; protein: inflammatory cytokines; protein: cytokine; protein: chemokine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: chemokines, inflammatory cytokines, cytokine, chemokine 
Answer:
 protein: chemokines; protein: inflammatory cytokines; protein: cytokine; protein: chemokine