PMID- 34209910 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210711 IS - 2072-6694 (Print) IS - 2072-6694 (Electronic) IS - 2072-6694 (Linking) VI - 13 IP - 13 DP - 2021 Jun 29 TI - Investigation of the Effect of KIR-HLA Pairs on Hepatocellular Carcinoma in Hepatitis C Virus Cirrhotic Patients. LID - 10.3390/cancers13133267 [doi] LID - 3267 AB - Natural killer cells are partially mediated through the binding of killer cell immunoglobulin-like receptors (KIR) with human leukocyte antigen (HLA) class I ligands. This investigation examined the risk of hepatocellular carcinoma (HCC) in relation to KIR-HLA pairs in patients with compensated hepatitis C virus (HCV)-associated cirrhosis. A total of 211 Japanese compensated HCV cirrhotic cases were retrospectively enrolled. After KIR, HLA-A, HLA-Bw, and HLA-C typing, associations between HLA, KIR, and KIR-HLA combinations and HCC development were evaluated using the Cox proportional hazards model with the stepwise method. During a median follow-up period of 6.6 years, 69.7% of patients exhibited HCC. The proportions of HLA-Bw4 and the KIR3DL1 + HLA-Bw4 pair were significantly higher in patients with HCC than in those without (78.9% vs. 64.1%; odds ratio (OR)-2.10, 95% confidence interval (CI)-1.10-4.01; p = 0.023 and 76.2% vs. 60.9%, odds ratio-2.05, p = 0.024, respectively). Multivariate analysis revealed the factors of male gender (hazard ratio (HR)-1.56, 95% CI-1.12-2.17; p = 0.009), alpha-fetoprotein > 5.6 ng/mL (HR-1.56, 95% CI-1.10-2.10; p = 0.011), and KIR3DL1 + HLA-Bw4 (HR-1.69, 95% CI-1.15-2.48; p = 0.007) as independent risk factors for developing HCC. Furthermore, the cumulative incidence of HCC was significantly higher in patients with KIR3DL1 + HLA-Bw4 than in those without (log-rank test; p = 0.013). The above findings suggest KIR3DL1 + HLA-Bw4, in addition to HLA-Bw4, as a novel KIR-HLA pair possibly associated with HCC development in HCV cirrhosis. HCV-associated cirrhotic patients with the risk factors of male gender, alpha-fetoprotein > 5.6 ng/mL, and KIR3DL1 + HLA-Bw4 may require careful surveillance for HCC onset. FAU - Umemura, Takeji AU - Umemura T AUID- ORCID: 0000-0001-7985-919X AD - Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan. AD - Consultation Center for Liver Diseases, Shinshu University Hospital, Matsumoto 390-8621, Nagano, Japan. AD - Department of Life Innovation, Shinshu University, Matsumoto 390-8621, Nagano, Japan. FAU - Joshita, Satoru AU - Joshita S AUID- ORCID: 0000-0002-6364-9654 AD - Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan. FAU - Saito, Hiromi AU - Saito H AD - Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan. FAU - Wakabayashi, Shun-Ichi AU - Wakabayashi SI AD - Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan. FAU - Kobayashi, Hiroyuki AU - Kobayashi H AD - Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan. FAU - Yamashita, Yuki AU - Yamashita Y AUID- ORCID: 0000-0002-0162-4208 AD - Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan. FAU - Sugiura, Ayumi AU - Sugiura A AUID- ORCID: 0000-0001-5427-7628 AD - Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan. FAU - Yamazaki, Tomoo AU - Yamazaki T AD - Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan. FAU - Ota, Masao AU - Ota M AUID- ORCID: 0000-0002-6400-5658 AD - Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan. LA - eng GR - 20K08282/Japan Society for the Promotion of Science/ PT - Journal Article DEP - 20210629 PL - Switzerland TA - Cancers (Basel) JT - Cancers JID - 101526829 PMC - PMC8267716 OTO - NOTNLM OT - cirrhosis OT - hepatitis C virus OT - hepatocellular carcinoma OT - human leukocyte antigen OT - killer cell immunoglobulin-like receptors OT - natural killer cells COIS- The authors declare no conflict of interest. EDAT- 2021/07/03 06:00 MHDA- 2021/07/03 06:01 PMCR- 2021/06/29 CRDT- 2021/07/02 01:40 PHST- 2021/04/20 00:00 [received] PHST- 2021/06/21 00:00 [revised] PHST- 2021/06/25 00:00 [accepted] PHST- 2021/07/02 01:40 [entrez] PHST- 2021/07/03 06:00 [pubmed] PHST- 2021/07/03 06:01 [medline] PHST- 2021/06/29 00:00 [pmc-release] AID - cancers13133267 [pii] AID - cancers-13-03267 [pii] AID - 10.3390/cancers13133267 [doi] PST - epublish SO - Cancers (Basel). 2021 Jun 29;13(13):3267. doi: 10.3390/cancers13133267.