9861
OBJECTIVE: We investigated the production of IL-5 , a potent growth factor and chemotactic factor for eosinophils , by CD4+ T lymphocytes in patients with asthma .
 IL-5, CD4+ T lymphocytes, eosinophils
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:
 IL-5, CD4+ T lymphocytes, eosinophils