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Furthermore, CD40 ligation of a HLA-A2+, MelanA/MART1+ MM cell line enhanced its susceptibility to specific lysis by a HLA-A2-restricted, MelanA/MART-1-specific CTL clone .
 CD40, HLA-A2+, MelanA/MART1+ MM cell line, HLA-A2-restricted, MelanA/MART-1-specific CTL clone
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:
 CD40, HLA-A2+, MelanA/MART1+ MM cell line, HLA-A2-restricted, MelanA/MART-1-specific CTL clone