1927
Since HUVECs released superoxide anions in response to TNF, and H2O2 induces VCAM-1 , PDTC may act as a radical scavenger .
 protein: VCAM-1; cell line: HUVECs
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: VCAM-1, HUVECs 
Answer:
 protein: VCAM-1; cell line: HUVECs