4746
The maximum levels of these markers induced by ML-9 were comparable to those induced by VD3 , but after removal of ML-9 from the medium by washing the cells, the expressions of theses markers decreased within 4 hours and reached basal levels in 1 day, indicating that ML-9 's induction of expression of differentiation-associated phenotypes was reversible.
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Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
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