Fig. 2

The effect of YKL-40 expression level on the invasion and migration abilities of the NSCLC cell lines. a The five NSCLC cell lines were divided into low metastasis (CL1-1, H23) and high metastasis (H838, CL1-5, H2009) groups by invasion and migration assay. b The YKL-40 expression level analysis by reverse transcription polymerase chain reaction (RT-PCR) and Western blot: indicating that the low and high metastasis groups expressed reduced and increased levels of YKL-40 mRNA and protein, respectively