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In addition, X-ray activation of HIV-1 LTR in transiently or stably transfected cell lines is inhibited by a potent antioxidant drug, pyrrolidine dithiocarbamate and by another drug, known for its role in the trapping of growth factors , suramin .
 cell line: cell lines; protein: growth factors; DNA: HIV-1 LTR
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: cell lines, growth factors, HIV-1 LTR 
Answer:
 cell line: cell lines; protein: growth factors; DNA: HIV-1 LTR