Fig. 3

Expression levels of FRlnc1 in GC cell lines, tissues, serum and serum exosomes. a the expressions of FRLnc1 in GC cell lines detected by qRT-PCR (*, 0.01 < P < 0.05; **, P < 0.01); b scattered point distribution diagram on FRLnc1 expression levels in GC tissues (n = 60) and adjacent normal tissues (n = 60) detected by qRT-PCR; c hot point diagram of FRLnc1 expression levels in GC tissues (n = 60) and adjacent normal tissues (n = 60) detected by qRT-PCR: compared with adjacent normal tissues, the FRLnc1 expression level in GC tissues was significantly increased (**, P < 0.01); d ROC curve of FRLnc1 in GC patients; e the expression levels of FRLnc1 in 7.5 mL serum of GC patients (n = 68) and healthy controls (n = 30) detected by qRT-PCR (**, P < 0.01); f ROC curve of FRLnc1 in 7.5 mL serum of GC patients; g the expression levels of FRLnc1 in 7.5 mL serum exosomes of GC patients (n = 52) and healthy controls (n = 30) detected by qRT-PCR (**, P < 0.01); and h ROC curve of FRLnc1 in 7.5 mL serum exosomes of GC patients