7078
These NP showed enhanced MHC class I restricted T cell activation in vitro when compared to high - burst releasing NP and soluble OVA24 , proving that efficient entrapment of the antigen is crucial to induce a potent cellular immune response .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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