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To understand the extent to which ALD may mimic mitogenic stimulation , we studied cytoplasmic and nuclear signaling steps in ALD -treated T cells .
 ALD -treated T cells
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:
 ALD -treated T cells