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 KITAGAWA, AKIHIRO A1 MASUDA, TAKAAKI A1 TAKAHASHI, JUNICHI A1 TOBO, TARO A1 NODA, MIWA A1 KURODA, YOSUKE A1 HU, QINGJIANG A1 KOUYAMA, YUTA A1 KOBAYASHI, YUTA A1 KURAMITSU, SHOTARO A1 SATO, KUNIAKI A1 FUJII, ATSUSHI A1 YOSHIKAWA, YUKIHIRO A1 WAKIYAMA, HIROAKI A1 SHIMIZU, DAI A1 TSURUDA, YUSUKE A1 EGUCHI, HIDETOSHI A1 DOKI, YUICHIRO A1 MORI, MASAKI A1 MIMORI, KOSHI 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.