6904
Monoclonal anti-endothelial cell antibodies from a patient with Takayasu arteritis activate endothelial cells from large vessels .
 protein: Monoclonal anti-endothelial cell antibodies
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: Monoclonal anti-endothelial cell antibodies 
Answer:
 protein: Monoclonal anti-endothelial cell antibodies