8609
These results advance the molecular understanding of opioid effects on lymphocytes , and in addition, demonstrate regulation of IL-2 synthesis and secretion by the novel mechanism of receptor-mediated AP-1 induction .
 protein: AP-1; cell type: lymphocytes; protein: IL-2
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: AP-1, lymphocytes, IL-2 
Answer:
 protein: AP-1; cell type: lymphocytes; protein: IL-2