12019
Moreover, we found that ectopic expression of a B-cell-specific transcription factor ( Oct-2 ) dramatically altered both the phenotype and chromosome constitution of hybrids arising in these cell fusions .
 Oct-2, B-cell-specific transcription factor
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:
 Oct-2, B-cell-specific transcription factor