6880
These observations suggest possible mechanisms by which Id3 overexpression can differentially affect development of pre-T cells into TCR alpha beta and gamma delta cells .
 pre-T cells, Id3
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:
 pre-T cells, Id3