9804
SDF - 1 alpha can up - regulate the expression of MMP9 and RHoC proteins in MM cells with up - regulated CXCR4 , and further promote the cell escape .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None