12306
X-rays -induced secretion of cellular factor (s) that enhance(s) HIV-1 promoter transcription in various non-irradiated transfected cell lines .
 non-irradiated transfected cell lines, cellular factor, HIV-1 promoter
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 non-irradiated transfected cell lines, cellular factor, HIV-1 promoter