Journal: International Journal of Oncology
Article Title: Smoking promotes colorectal cancer via the CKAP2L/AREG axis
doi: 10.3892/ijo.2026.5872
Figure Lengend Snippet: CKAP2L promotes proliferation and migration of CRC cells by promoting AREG expression. (A) RNA sequencing results for transduced CRC cells. (B) Venn diagram shows the overlapping genes between transduced cells and CSE-treated HCT116 cells. (C) Relative expression of AREG in CRC cells treated with CSE detected by RT-qPCR and normalized against β-actin. (D) Relative expression levels of AREG and CKAP2L were detected by RT-qPCR and normalized against β-actin. (E) Secreted protein levels of AREG were detected by enzyme-linked immunosorbent assay. (F) Proliferation of transduced/transfected cells was measured by Cell Counting Kit 8. (G) Migration of transduced/transfected cells was measured by Transwell assay (×100 magnification). (H) Expression levels of proteins were measured by western blotting. Data were analyzed using two-way ANOVA followed by Tukey test, or unpaired Student's t-test for two groups. * P<0.05, ** P<0.01, *** P<0.001 and **** P<0.0001. AREG, amphiregulin; CKAP2L, cytoskeleton-associated protein 2-like; CRC, colorectal cancer; CSE, cigarette smoke extract; EGFR, epidermal growth factor receptor; NC, negative control; OE, overexpression; p-, phosphorylated; RT-qPCR, reverse transcription-quantitative PCR; sh, short hairpin; si, small interfering.
Article Snippet: The concentration of secreted AREG in the culture medium was then measured using the Human AREG ELISA Kit (cat. no. EK0304; Wuhan Boster Biological Technology, Ltd.) according to the manufacturer's instructions.
Techniques: Migration, Expressing, RNA Sequencing, Quantitative RT-PCR, Enzyme-linked Immunosorbent Assay, Transfection, Cell Counting, Transwell Assay, Western Blot, Negative Control, Over Expression, Reverse Transcription, Real-time Polymerase Chain Reaction