Establishment of New Molecular Prototyping Based on Proteomics for Predicting Osteosarcoma Chemotherapy Response and Risk of Recurrence

Retrospectively collected 400 cases of clinical data and pathological paraffin specimens of osteosarcoma, chondrosarcoma (control) and endogenous chondroma (control) in our hospital from 2008 to 2014, combined with high-pressure cycle-satellite scanning mass spectrometry (PCT-SWATH) Molecular typing of osteosarcoma and prediction of targeted therapy, the establishment of a new molecular classification based on proteomics for osteosarcoma to predict the chemotherapy response and recurrence risk of osteosarcoma. Clinical osteosarcoma patients include as many types as possible: pre-chemotherapy, post-chemotherapy, recurrence, and metastasis. The study did not involve vulnerable groups, and it was taken as a postoperative wax specimen for patients, which had no health, life and other effects on patients. Study application exemption from informed consent.