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These results demonstrate that the transcription of nuclear protooncogenes is regulated by heat shock indicating a role for nuclear protooncogenes in the stress response of lymphoid cells .
 cell type: lymphoid cells; DNA: protooncogenes; DNA: nuclear protooncogenes; DNA: nuclear protooncogenes; DNA: protooncogenes
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell type: lymphoid cells; DNA: protooncogenes; DNA: nuclear protooncogenes; DNA: nuclear protooncogenes; DNA: protooncogenes