PMID- 21726204 OWN - NLM STAT- MEDLINE DCOM- 20120109 LR - 20201226 IS - 1399-0039 (Electronic) IS - 0001-2815 (Linking) VI - 78 IP - 2 DP - 2011 Aug TI - KIR/HLA gene combinations influence susceptibility to B-cell chronic lymphocytic leukemia and the clinical course of disease. PG - 129-38 LID - 10.1111/j.1399-0039.2011.01721.x [doi] AB - The aim of this study was to analyze the association between gene polymorphisms of killer-cell immunoglobulin-like receptors (KIRs) and their human leukocyte antigen (HLA) ligands and susceptibility to B-cell chronic lymphocytic leukemia (B-CLL) and the clinical course of disease. The distribution of individual KIR genes in 197 B-CLL patients and 200 controls was similar, except for a tendency for lower frequencies of the KIR2DS3 and KIR2DL5 genes among B-CLL patients (26.9% vs 35.5%, P = 0.06, 46.2% vs 55.5%, P = 0.06). The associations between KIR2DS3 and B-CLL reached statistical significance in women (P = 0.05). Moreover, we found a trend toward a lower frequency of genotypes with the presence of five or six activating KIR genes in B-CLL patients compared to controls (20.8% vs 29.0%, P = 0.06), and a significantly higher frequency of individuals possessing genotypes with a prevalence of inhibitory over activating KIR genes (ratio < 0.71) among B-CLL patients (P = 0.04). The HLA-Bw4 specificity was significantly reduced among B-CLL patients (48.7% vs 63.0%, P = 0.005), which resulted from a decreased frequency of HLA-Bw4(Thr80) (21.6% vs 32.0%, P = 0.02). Moreover, among HLA-Bw4-positive individuals, progression-free survival (PFS) tended to be higher in the presence of KIR3DS1 (77% +/- 9% vs 39% +/- 13%, P = 0.07). However, in B-CLL patients, the presence of HLA-C2 was associated with decreased PFS (49% +/- 9% vs 75% +/- 7%, P = 0.02), and among HLA-C2-positive patients, the probability of PFS was significantly reduced in the absence of KIR2DS1 (34% +/- 11% vs 77% +/- 7%, P = 0.007). Our results indicate that the pattern of inhibitory/activating KIR genes, together with their HLA ligands, is associated with susceptibility to B-CLL and affects the clinical course of this disease. CI - (c) 2011 John Wiley & Sons A/S. FAU - Karabon, L AU - Karabon L AD - Department of Experimental Therapy, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland. lkarabon@iitd.pan.wroc.pl FAU - Jedynak, A AU - Jedynak A FAU - Giebel, S AU - Giebel S FAU - Wolowiec, D AU - Wolowiec D FAU - Kielbinski, M AU - Kielbinski M FAU - Woszczyk, D AU - Woszczyk D FAU - Kapelko-Slowik, K AU - Kapelko-Slowik K FAU - Kuliczkowski, K AU - Kuliczkowski K FAU - Frydecka, I AU - Frydecka I LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Tissue Antigens JT - Tissue antigens JID - 0331072 RN - 0 (HLA Antigens) RN - 0 (Ligands) RN - 0 (Receptors, KIR) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Case-Control Studies MH - Disease-Free Survival MH - Female MH - *Genetic Predisposition to Disease MH - Genotype MH - HLA Antigens/*genetics MH - Humans MH - Leukemia, Lymphocytic, Chronic, B-Cell/*immunology MH - Ligands MH - Male MH - Middle Aged MH - Prevalence MH - Receptors, KIR/*genetics EDAT- 2011/07/06 06:00 MHDA- 2012/01/10 06:00 CRDT- 2011/07/06 06:00 PHST- 2011/07/06 06:00 [entrez] PHST- 2011/07/06 06:00 [pubmed] PHST- 2012/01/10 06:00 [medline] AID - 10.1111/j.1399-0039.2011.01721.x [doi] PST - ppublish SO - Tissue Antigens. 2011 Aug;78(2):129-38. doi: 10.1111/j.1399-0039.2011.01721.x.