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Adhesion of human monocytes to P-selectin , the most rapidly expressed endothelial tethering factor , increased the secretion of monocyte chemotactic protein-1 ( MCP-1 ) and tumor necrosis factor-alpha ( TNF-alpha ) by the leukocytes when they were stimulated with platelet-activating factor .
 protein: MCP-1; protein: platelet-activating factor; protein: P-selectin; cell type: human monocytes; protein: TNF-alpha; cell type: leukocytes; protein: monocyte chemotactic protein-1; protein: tumor necrosis factor-alpha; cell type: monocytes; protein: endothelial tethering factor
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: MCP-1, platelet-activating factor, P-selectin, human monocytes, TNF-alpha, leukocytes, monocyte chemotactic protein-1, tumor necrosis factor-alpha, monocytes, endothelial tethering factor 
Answer:
 protein: MCP-1; protein: platelet-activating factor; protein: P-selectin; cell type: human monocytes; protein: TNF-alpha; cell type: leukocytes; protein: monocyte chemotactic protein-1; protein: tumor necrosis factor-alpha; cell type: monocytes; protein: endothelial tethering factor