8800
T cell responses to some nuclear antigens, particularly U1RNP , have been detected in patients with systemic lupus erythematosus ( SLE ) and in healthy subjects .
 U1RNP
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:
 U1RNP