12582
Dendritic cells and autologous CD4 + T cells were isolated from peripheral blood by a series of density-gradient centrifugations or magnetic bead separations (or both).
 autologous CD4 + T cells, Dendritic cells, CD4
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:
 autologous CD4 + T cells, Dendritic cells, CD4