| Summary: | Fei Zhao,1 Yunzhang Feng,1 Xueqiang Zhang,2 Xiaohui Liu,1 Aili Li3 1Department of Gastrointestinal Surgery, HanDan Central Hospital, Heibei, People’s Republic of China; 2 HanDan Central Hospital President’s Office, HanDan Central Hospital, Heibei, People’s Republic of China; 3Department of Gynaecology, HanDan Central Hospital, Heibei, People’s Republic of ChinaCorrespondence: Aili Li Email 1002281017@qq.comBackground: The role of kinesin superfamily proteins (KIFs) has been reported in a variety of tumors and KIFs contributed to the proliferation of cancer cells. But few studies were focus on colon adenocarcinoma.Methods: Through bioinformatics analysis and immunohistochemistry (IHC) assays, the expression of KIF18B in colon adenocarcinoma tissues was determined. Stable KIF18B-depleted cell lines were constructed using lentivirus-mediated shRNA of KIF18B. Cell colony formation assay and CCK8 assay were performed to assess cell proliferation degree, and the expression level of KI67 and PCNA was used to indicate cell proliferation in vitro and verified using xenograft tumors in vivo.Results: KIF18B is highly expressed in colon adenocarcinoma tissues and has a negative correlation with the prognosis and tumor grade of colon adenocarcinoma. Interfering with KIF18B inhibits cell proliferation in vitro and in vivo.Conclusion: KIF18B can be used as a prognostic marker for colon adenocarcinoma and may be a therapeutic target for colon adenocarcinoma treatment.Keywords: kinesin superfamily proteins, KIF, KIF18B, colon adenocarcinoma, proliferation, biomarker, therapeutic
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