6905
OBJECTIVE: To create monoclonal anti-endothelial cell antibodies ( mAECA ) from a patient with Takayasu arteritis to evaluate their ability to activate human umbilical vein endothelial cells ( HUVEC ), and to characterize the mechanism of EC activation .
 cell line: HUVEC; protein: mAECA; cell line: human umbilical vein endothelial cells; 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: HUVEC, mAECA, human umbilical vein endothelial cells, monoclonal anti-endothelial cell antibodies 
Answer:
 cell line: HUVEC; protein: mAECA; cell line: human umbilical vein endothelial cells; protein: monoclonal anti-endothelial cell antibodies