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Triggering of the T-cell receptor-CD3 complex activates two major signal cascades in T lymphocytes , (i) Ca2+-dependent signal cascades and (ii) protein kinase cascades .
 T lymphocytes, protein kinase, T-cell receptor-CD3 complex
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:
 T lymphocytes, protein kinase, T-cell receptor-CD3 complex