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The mechanism of corticosteroid resistance in bronchial asthma has been studied by determining the rank order of potency for different corticosteroids in inhibiting the generation of a 3 kD molecule from peripheral blood monocytes isolated from corticosteroid-sensitive (CS) and corticosteroid-resistant (CR) asthmatic subjects , which augments leukotriene B4 ( LTB4 ) generation by human neutrophils ( PMN ) stimulated by calcium ionophore .
 cell type: peripheral blood monocytes; cell type: human neutrophils; protein: LTB4; cell type: PMN
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell type: peripheral blood monocytes; cell type: human neutrophils; protein: LTB4; cell type: PMN