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OBJECTIVE: This study focuses on the functional analysis of the human IL-5 (hIL-5) promoter and characterization of cis -regulatory elements and transcription factors involved in the suppression of IL-5 transcription in T cells .
 human IL-5 (hIL-5) promoter, T cells, IL-5
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:
 human IL-5 (hIL-5) promoter, T cells, IL-5