10255
The transcription factor interferon regulatory factor 5 ( IRF5 ) exerts crucial functions in the regulation of host immunity against extracellular pathogens , DNA damage - induced apoptosis , death receptor signaling , and macrophage polarization .
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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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