Different extracellular protease activities cause tumor-specific serum polypeptide group expression patterns

Recent studies have shown that a variety of unique serum peptide group expression pattern libraries have been established by mass spectrometry, and serum peptide group expression patterns are closely related to clinical symptoms. Elucidation of the sequence characteristics of the polypeptide composition in serum and its mechanism of production will help to make the serum peptide group expression pattern more widely accepted as a reliable disease marker.

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