4217
CONCLUSION : Osteopontin siRNA can inhibit U251 cells invasion via the down - regulation of uPA , MMP - 2 and MMP - 9 levels , and promote apoptosis through induction of Bax expression and inhibition of Bcl 2 level .
 Anatomy: U251 cells
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: U251 cells 
Answer:
 Anatomy: U251 cells