4857
Soluble tumor necrosis factor receptors inhibit phorbol myristate acetate and cytokine-induced HIV-1 expression chronically infected U1 cells .
 protein: Soluble tumor necrosis factor receptors; cell type: infected U1 cells
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: Soluble tumor necrosis factor receptors, infected U1 cells 
Answer:
 protein: Soluble tumor necrosis factor receptors; cell type: infected U1 cells