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An ability of the Epstein-Barr virus latent membrane protein LMP1 to enhance the survival of infected B cells through upregulation of the bcl-2 oncogene was first suggested by experiments involving gene transfection and the selection of stable LMP1 + clones (S.Henderson, M. Rowe, C.Gregory, F.Wang, E.Kieff, and A.Rickinson, Cell 65:1107-1115, 1991).
 bcl-2, LMP1, Epstein-Barr virus latent membrane protein, infected B cells, LMP1 + clones, bcl-2 oncogene, LMP1
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:
 bcl-2, LMP1, Epstein-Barr virus latent membrane protein, infected B cells, LMP1 + clones, bcl-2 oncogene, LMP1