913
The effects of a competitive progesterone antagonist ( RU486 ) and a specific glucocorticoid receptor blocker ( RU43044 ) were tested on the release of a blocking factor by progesterone -treated pregnancy lymphocytes .
 protein: blocking factor; cell type: pregnancy lymphocytes; cell line: progesterone -treated pregnancy lymphocytes; protein: glucocorticoid receptor
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: blocking factor; cell type: pregnancy lymphocytes; cell line: progesterone -treated pregnancy lymphocytes; protein: glucocorticoid receptor