9802
We observed that cytarabine promotes multiple myeloma ( MM ) cell escape and that the number of cells in the lower chamber increased with increasing clinical disease stage in in vitro model which was constructed by a Boyden chamber , matrigel glue and serum from MM patients in different disease stages .
 Chemical: cytarabine
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: cytarabine