PMID- 27519478 OWN - NLM STAT- MEDLINE DCOM- 20171016 LR - 20181113 IS - 1479-5876 (Electronic) IS - 1479-5876 (Linking) VI - 14 IP - 1 DP - 2016 Aug 12 TI - Role of KIR and CD16A genotypes in colorectal carcinoma genetic risk and clinical stage. PG - 239 LID - 10.1186/s12967-016-1001-y [doi] LID - 239 AB - BACKGROUND: NK cell cytotoxicity is regulated by the types of the interaction between killer immunoglobulin-like receptors (KIRs) and human leukocyte antigen (HLA) class I ligands on target cells and the different binding affinity of the Fcgamma receptor IIIA (CD16A) for IgG-coated tumor cells. Thus, it is conceivable that KIR and CD16A gene contents may contribute to the function of NK cells by modulating an immune response in the colorectal carcinoma (CRC) microenvironment. This hypothesis is supported by recent evidence suggesting that NK cells improve the clinical course of CRC patients by enhancing the anti-CRC effect of CD8 + T cells. This information provides the rationale to test the hypothesis whether the independent KIR segregation and specificity, as well as CD16A gene polymorphisms, have an impact on CRC. METHODS: Using polymerase chain reaction-sequence-specific primers (PCR-SSP) and sequence-based typing (SBT), we investigated KIR/HLA-C complex and CD16A (48H/R/L,158V/F) gene polymorphisms in 52 CRC patients and 61 local healthy controls (LCTRs). RESULTS: The allele frequency (AF) of at least five activating KIR (aKIRs) of the B haplotype (p = 0.036, OR 0.204), KIR2DL2 (p = 0.047, OR 0.2616), and KIR2DS2 genes (5.8 vs LCTR 13.8 % and vs. Fasano's CTR 16.3 %, p = 0.05, OR 0.3145), in the absence of their cognate HLA-C1 ligands, were significantly associated with a reduced genetic risk of CRC. In contrast, CD16A-48H polymorphism was positively associated with an increased genetic risk of CRC (p = 0.05, OR 2.761). The latter was also found to be correlated with advanced stages of disease [III and IV (p = 0.03, OR 3.625)]. CONCLUSIONS: Our data suggest that the analysis of aKIRs and KIR2DL2 gene and CD16A-48H may be of interest for the identification of individuals at reduced and increased genetic risk of CRC, respectively. FAU - Canossi, Angelica AU - Canossi A AD - Laboratory of Tumor Immunology and Immunotherapy, CNR Institute of Translational Pharmacology (IFT), Via Fosso del Cavaliere 100, 00133, L'Aquila, Rome, Italy. FAU - Aureli, Anna AU - Aureli A AD - Laboratory of Tumor Immunology and Immunotherapy, CNR Institute of Translational Pharmacology (IFT), Via Fosso del Cavaliere 100, 00133, L'Aquila, Rome, Italy. FAU - Del Beato, Tiziana AU - Del Beato T AD - Laboratory of Tumor Immunology and Immunotherapy, CNR Institute of Translational Pharmacology (IFT), Via Fosso del Cavaliere 100, 00133, L'Aquila, Rome, Italy. FAU - Rossi, Piero AU - Rossi P AD - Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. FAU - Franceschilli, Luana AU - Franceschilli L AD - Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. FAU - De Sanctis, Flavio AU - De Sanctis F AD - Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. FAU - Sileri, Pierpaolo AU - Sileri P AD - Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. FAU - di Lorenzo, Nicola AU - di Lorenzo N AD - Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. FAU - Buonomo, Oreste AU - Buonomo O AD - Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. FAU - Lauro, Davide AU - Lauro D AD - Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy. FAU - Venditti, Adriano AU - Venditti A AD - Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy. FAU - Sconocchia, Giuseppe AU - Sconocchia G AUID- ORCID: 0000-0003-3260-4856 AD - Laboratory of Tumor Immunology and Immunotherapy, CNR Institute of Translational Pharmacology (IFT), Via Fosso del Cavaliere 100, 00133, L'Aquila, Rome, Italy. giuseppe.sconocchia@cnr.it. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160812 PL - England TA - J Transl Med JT - Journal of translational medicine JID - 101190741 RN - 0 (FCGR3A protein, human) RN - 0 (HLA-C Antigens) RN - 0 (Ligands) RN - 0 (Receptors, IgG) RN - 0 (Receptors, KIR) SB - IM MH - Aged MH - Alleles MH - Case-Control Studies MH - Colorectal Neoplasms/*genetics/*pathology MH - Demography MH - Female MH - Gene Frequency MH - Genetic Association Studies MH - *Genetic Predisposition to Disease MH - Genotype MH - HLA-C Antigens/metabolism MH - Haplotypes/genetics MH - Humans MH - Italy MH - Ligands MH - Male MH - Neoplasm Staging MH - Receptors, IgG/*genetics MH - Receptors, KIR/*genetics MH - Risk Factors PMC - PMC4983069 OTO - NOTNLM OT - CD16A OT - CRC OT - Colorectal carcinoma OT - FCGR3A genotypes OT - Genetic risk OT - KIR OT - NK EDAT- 2016/08/16 06:00 MHDA- 2017/10/17 06:00 PMCR- 2016/08/12 CRDT- 2016/08/14 06:00 PHST- 2016/06/30 00:00 [received] PHST- 2016/08/03 00:00 [accepted] PHST- 2016/08/14 06:00 [entrez] PHST- 2016/08/16 06:00 [pubmed] PHST- 2017/10/17 06:00 [medline] PHST- 2016/08/12 00:00 [pmc-release] AID - 10.1186/s12967-016-1001-y [pii] AID - 1001 [pii] AID - 10.1186/s12967-016-1001-y [doi] PST - epublish SO - J Transl Med. 2016 Aug 12;14(1):239. doi: 10.1186/s12967-016-1001-y.