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Dexamethasone , a glucocorticoid that is widely used as an immunomodulatory and anti-inflammatory agent , inhibits granzyme B mRNA transcript in phytohemagglutinin -activated peripheral blood mononuclear cells .
 protein: phytohemagglutinin; RNA: granzyme B mRNA transcript; cell type: phytohemagglutinin -activated peripheral blood mononuclear cells
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: phytohemagglutinin, granzyme B mRNA transcript, phytohemagglutinin -activated peripheral blood mononuclear cells 
Answer:
 protein: phytohemagglutinin; RNA: granzyme B mRNA transcript; cell type: phytohemagglutinin -activated peripheral blood mononuclear cells