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Overexpression of ALY stimulates the activity of the TCR alpha enhancer complex reconstituted in transfected nonlymphoid HeLa cells , whereas down-regulation of ALY by anti-sense oligonucleotides virtually eliminates TCR alpha enhancer activity in T cells .
 ALY, TCR alpha enhancer complex, T cells, transfected nonlymphoid HeLa cells, ALY, TCR alpha enhancer
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:
 ALY, TCR alpha enhancer complex, T cells, transfected nonlymphoid HeLa cells, ALY, TCR alpha enhancer