6877
Enforced expression of Id3 , which has the capacity to inhibit many basic helix-loop-helix (bHLH) transcription factors , in human CD34(+) hematopoietic progenitor cells that have not undergone T cell receptor ( TCR ) gene rearrangements inhibits development of the transduced cells into TCR alpha beta and gamma delta cells in a fetal thymic organ culture ( FTOC ).
 T cell receptor ( TCR ) gene rearrangements, TCR, human CD34(+) hematopoietic progenitor cells, FTOC, fetal thymic organ culture, basic helix-loop-helix (bHLH) transcription factors, T cell receptor, transduced 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:
 T cell receptor ( TCR ) gene rearrangements, TCR, human CD34(+) hematopoietic progenitor cells, FTOC, fetal thymic organ culture, basic helix-loop-helix (bHLH) transcription factors, T cell receptor, transduced cells, Id3