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COMP promoted the proliferation of PTC cells in vitro. A. Cell viability was determined by CCK-8. COMP-shRNA cells had significantly lower absorbance than Control and NC cells at 72 h; *P < 0.05. B and C. Colony formation assays demonstrated that COMP promoted the growth of PTC cells. COMP-shRNA cells produced fewer colonies than Control and NC cells; *P < 0.05.
