14996
Fractionation of OB with lineage markers : Sca1 , osteopontin ( OPN ) , CD166 , CD44 , and CD90 revealed that Lin - Sca1 - OPN + CD166 + cells ( CD166 + ) and their subpopulations fractionated with CD44 and CD90 expressed high levels of Runx2 and low levels of osteocalcin ( OC ) demonstrating the relatively immature status of these cells .
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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:
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