2028
Normal T lymphocytes whose surface expression of CD3 was depleted showed impaired UV-induced tyrosine phosphorylation and Ca2+ signals .
 CD3, T lymphocytes
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:
 CD3, T lymphocytes