14028
OBJECTIVE: To identify and characterize estrogen receptor (ER) transcripts expressed in immune cells of patients with systemic lupus erythematosus ( SLE ) and healthy donors .
 cell type: immune cells; RNA: estrogen receptor (ER) transcripts
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: immune cells, estrogen receptor (ER) transcripts 
Answer:
 cell type: immune cells; RNA: estrogen receptor (ER) transcripts