21917
Nevertheless , QD705 - COOH readily entered cells , and co - treatment with either inhibitors of endocytosis or intracellular TLRs prevented MCP - 1 induction .
 Chemical: COOH
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: COOH