12069
The transfected cell lines expressed elevated levels of spi-1 mRNA and protein and high Spi-1 -DNA binding activity .
 Spi-1, transfected cell lines, spi-1, spi-1 mRNA
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:
 Spi-1, transfected cell lines, spi-1, spi-1 mRNA