4742
We have shown that 1-(5-chloronaphthalene-1-sulfonyl)-1H-hexahydro-1,4-diazepine hydrochloride ( ML-9 ), an inhibitor of myosin light chain kinase , induces differentiation of monocytoid leukemia cell lines U937 and THP-1 but not of myeloblastic leukemic ML-1 cell or erythroleukemia K562 cells .
 ( cell line: U937, None) , ( cell line: monocytoid leukemia cell lines, None) , ( cell line: THP-1, None) , ( cell line: myeloblastic leukemic ML-1 cell, None) , ( cell line: erythroleukemia K562 cells, None) , ( protein: myosin light chain kinase, None) 
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:
 ( cell line: U937, None) , ( cell line: monocytoid leukemia cell lines, None) , ( cell line: THP-1, None) , ( cell line: myeloblastic leukemic ML-1 cell, None) , ( cell line: erythroleukemia K562 cells, None) , ( protein: myosin light chain kinase, None) 