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Class II major histocompatibility (class II) genes are regulated in a B-cell-specific and gamma interferon-inducible fashion .
 Class II major histocompatibility (class II) genes
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:
 Class II major histocompatibility (class II) genes