22930
Most of the chemotactic activity of connecting peptide - derived peptide ( CPp , [ uPA - ( 135 - 158 ) ] ) for embryonic kidney HEK293 / uPAR - 25 cells is retained by uPA - ( 144 - 158 ) at nanomolar concentrations .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None