RT Journal Article SR Electronic T1 KIF15 Expression in Tumor-associated Monocytes Is a Prognostic Biomarker in Hepatocellular Carcinoma JF Cancer Genomics - Proteomics JO Cancer Genomics Proteomics FD International Institute of Anticancer Research SP 141 OP 149 DO 10.21873/cgp.20174 VO 17 IS 2 A1 AKIHIRO KITAGAWA A1 TAKAAKI MASUDA A1 JUNICHI TAKAHASHI A1 TARO TOBO A1 MIWA NODA A1 YOSUKE KURODA A1 QINGJIANG HU A1 YUTA KOUYAMA A1 YUTA KOBAYASHI A1 SHOTARO KURAMITSU A1 KUNIAKI SATO A1 ATSUSHI FUJII A1 YUKIHIRO YOSHIKAWA A1 HIROAKI WAKIYAMA A1 DAI SHIMIZU A1 YUSUKE TSURUDA A1 HIDETOSHI EGUCHI A1 YUICHIRO DOKI A1 MASAKI MORI A1 KOSHI MIMORI YR 2020 UL http://cgp.iiarjournals.org/content/17/2/141.abstract AB Background/Aim: Kinesin family member 15 (KIF15) participates in the transport of macromolecules in essential cellular processes. In this study we evaluated the clinical relevance of KIF15 expression in hepatocellular carcinoma (HCC). Materials and Methods: Association between KIF15 expression and clinical outcomes in HCC patients was analyzed using three independent cohorts. Localization of KIF15 expression was assessed by immunohistochemical analysis. Co-culture experiments were performed using healthy donor peripheral blood mononuclear cells (PBMC) and HCC cell lines. Results: Immunohistochemical analysis showed that KIF15 was mainly expressed in inflammatory monocytes around cancer cells. Multivariate analysis indicated high KIF15 expression was an independent poor prognostic factor for survival. HCC cells with high expression of minichromosome maintenance protein 2 (MCM2) were located close to KIF15-expressing inflammatory monocytes. The proliferation ability of HCC cells was increased by co-culture with PBMC. Conclusion: High KIF15 expression in inflammatory monocytes in tumor tissues may serve as a prognostic marker for poor outcome in HCC.