1813
We demonstrate in a variety of cell types, including lymphocytes and endometrial stroma , that Pit-1 is not involved in the regulation of dPRL promoter/reporter gene constructs carrying 3 kb 5'-flanking DNA .
 dPRL promoter/reporter gene constructs, 3 kb 5'-flanking DNA, Pit-1, lymphocytes
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:
 dPRL promoter/reporter gene constructs, 3 kb 5'-flanking DNA, Pit-1, lymphocytes