13183
To further characterize altered expression of TCRzeta , p56(lck) , and impaired activation of NFkappaB , T lymphocytes were obtained from 65 patients with RCC , the majority of whom were receiving combination cytokine therapy [ interleukin (IL)-2 , IFN alpha -containing regimens ] and 37 control individuals.
 NFkappaB, interleukin (IL)-2, T lymphocytes, p56(lck), IFN alpha, TCRzeta, cytokine
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:
 NFkappaB, interleukin (IL)-2, T lymphocytes, p56(lck), IFN alpha, TCRzeta, cytokine