28021
Previously we have shown that a fraction of the matrix metalloproteinase - 9 ( MMP - 9 ) synthesized by the macrophage cell line THP - 1 was bound to a chondroitin sulphate proteoglycan ( CSPG ) core protein as a reduction sensitive heteromer .
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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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