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This paper reports the expression of IL-12R on a human gamma delta T cell line that responds to IL-12 with enhanced cytolytic activity and increased expression of cytolytic effector molecules granzyme B and perforin .
 IL-12, perforin, IL-12R, human gamma delta T cell line, granzyme B, cytolytic effector molecules
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:
 IL-12, perforin, IL-12R, human gamma delta T cell line, granzyme B, cytolytic effector molecules