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Depletion of CD8+ cells was accompanied by 62 +/- 18% loss of progesterone receptor -bearing cells , while depletion of CD4+ cells resulted in a twofold increase in the number of positively staining lymphocytes .
 protein: progesterone receptor; cell line: CD8+ cells; cell line: lymphocytes; cell line: progesterone receptor -bearing cells; cell line: CD4+ cells
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: progesterone receptor; cell line: CD8+ cells; cell line: lymphocytes; cell line: progesterone receptor -bearing cells; cell line: CD4+ cells