1
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Ponce GI, Recendiz-Nuñez MÁ, García-Torreros C, Sifuentes-Franco S, Enciso-Vargas M, Rodríguez-Sánchez IP, Huerta-Olvera SG, Graciano-Machuca O. Association between Killer Immunoglobulin-like receptor genes and susceptibility to inflammatory bowel disease: An updated meta-analysis. Heliyon 2024; 10:e33903. [PMID: 39100457 PMCID: PMC11296034 DOI: 10.1016/j.heliyon.2024.e33903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/27/2024] [Accepted: 06/28/2024] [Indexed: 08/06/2024] Open
Abstract
Background Several studies have associated members of the KIR genes as susceptibility factors to inflammatory bowel diseases (IBD): ulcerative colitis (UC) and Crohn's disease (CD). Objectives To assess the association between the presence and absence KIR genes and IBD susceptibility through a meta-analysis. Method A systematic search was performed through the PubMed, Scopus, and Web of Science databases to obtain relevant articles published before March 2024. Associations between genes and susceptibility to IBDs were estimated by OR with 95 % CI. Results We found positive associations of the KIR2DS1 and KIR2DS3 genes with susceptibility to UC, while the KIR2DL3 and KIR2DS4 full genes showed a negative association. In addition, the KIR2DS1, KIR2DS3, KIR2DS4, KIR2DS5, and KIR3DS1 genes showed a positive association with susceptibility to CD, whereas the KIR2DL1 gene showed a negative association. Conclusions Our meta-analysis indicates that individuals carrying the KIR2DS1 and KIR2DS3 genes exhibit increased susceptibility to UC, whereas carriers of the KIR2DS1, KIR2DS3, KIR2DS4, KIR2DS5, and KIR3DS1 genes are more prone to CD. However, further studies are required to clarify the role of the KIR genes and their corresponding ligands in the pathology of IBD.
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Affiliation(s)
| | - Miguel Ángel Recendiz-Nuñez
- Bachelor's Degree in Pharmacobiologist Chemist, La Cienega Campus (CUCiénega), UDG, Ocotlan, 47820, Jalisco, Mexico
| | - César García-Torreros
- Bachelor's Degree in Pharmacobiologist Chemist, La Cienega Campus (CUCiénega), UDG, Ocotlan, 47820, Jalisco, Mexico
| | - Sonia Sifuentes-Franco
- Clinical Science Laboratory, Department of Health Sciences, Los Valles Campus (CUValles), University of Guadalajara (UDG), Ameca, 46600, Jalisco, Mexico
| | | | - Irám Pablo Rodríguez-Sánchez
- Molecular and Structural Physiology Laboratory, School of Biological Sciences, Autonomous University of Nuevo León (UANL), San Nicolas de Los Garza, Nuevo Leon, 66455, Mexico
| | - Selene Guadalupe Huerta-Olvera
- Medical and Life Sciences Department, La Cienega Campus (CUCiénega), University of Guadalajara (UDG), Ocotlan, 47820, Jalisco, Mexico
| | - Omar Graciano-Machuca
- Laboratory of Biological Systems, Department of Health Sciences, Los Valles Campus (CUValles), University of Guadalajara (UDG), Ameca, 46600, Jalisco, Mexico
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2
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Shih T, Yusung S, Gonsky R, Dutra-Clarke R, Ziring D, Rabizadeh S, Kugathasan S, Denson LA, Li D, Braun J. Environmental Interaction of Resolved Human Cytomegalovirus Infection With Crohn's Disease Location. Inflamm Bowel Dis 2022; 29:328-331. [PMID: 36508344 PMCID: PMC9890217 DOI: 10.1093/ibd/izac251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Indexed: 02/02/2023]
Abstract
Lay Summary
Active cytomegalovirus (CMV) infection complicates management of inflammatory bowel disease, but the relationship of resolved CMV infection to Crohn’s disease (CD) behavior or localization is unknown. This article reports a striking risk (9-fold) of Crohn’s disease localization to the colon with prior CMV infection. It also reports imputed mucosal cellular composition, HLA class 1, and KIR gene variants that delimit prior observations regarding HLA and KIR associations with Crohn’s disease risk and behavior.
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Affiliation(s)
- Terri Shih
- David Geffen UCLA School of Medicine, Los Angeles, CA, 90095, USA
| | - Susy Yusung
- David Geffen UCLA School of Medicine, Los Angeles, CA, 90095, USA
| | - Rivkah Gonsky
- Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | | | - David Ziring
- Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | | | | | - Lee A Denson
- Cincinnati Children’s Medical Center, Cincinnati, OH, 45229, USA
| | - Dalin Li
- Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Jonathan Braun
- Address correspondence to: Jonathan Braun, MD, PhD, F. Widjaja Inflammatory Bowel Disease Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA, 90048, USA ()
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3
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Pollock NR, Harrison GF, Norman PJ. Immunogenomics of Killer Cell Immunoglobulin-Like Receptor (KIR) and HLA Class I: Coevolution and Consequences for Human Health. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2022; 10:1763-1775. [PMID: 35561968 PMCID: PMC10038757 DOI: 10.1016/j.jaip.2022.04.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 12/12/2022]
Abstract
Interactions of killer cell immunoglobin-like receptors (KIR) with human leukocyte antigens (HLA) class I regulate effector functions of key cytotoxic cells of innate and adaptive immunity. The extreme diversity of this interaction is genetically determined, having evolved in the ever-changing environment of pathogen exposure. Diversity of KIR and HLA genes is further facilitated by their independent segregation on separate chromosomes. That fetal implantation relies on many of the same types of immune cells as infection control places certain constraints on the evolution of KIR interactions with HLA. Consequently, specific inherited combinations of receptors and ligands may predispose to specific immune-mediated diseases, including autoimmunity. Combinatorial diversity of KIR and HLA class I can also differentiate success rates of immunotherapy directed to these diseases. Progress toward both etiopathology and predicting response to therapy is being achieved through detailed characterization of the extent and consequences of the combinatorial diversity of KIR and HLA. Achieving these goals is more tractable with the development of integrated analyses of molecular evolution, function, and pathology that will establish guidelines for understanding and managing risks. Here, we present what is known about the coevolution of KIR with HLA class I and the impact of their complexity on immune function and homeostasis.
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Affiliation(s)
- Nicholas R Pollock
- Division of Biomedical Informatics and Personalized Medicine and Department of Immunology and Microbiology, Anschutz Medical Campus, University of Colorado, Aurora, Colo
| | - Genelle F Harrison
- Division of Biomedical Informatics and Personalized Medicine and Department of Immunology and Microbiology, Anschutz Medical Campus, University of Colorado, Aurora, Colo
| | - Paul J Norman
- Division of Biomedical Informatics and Personalized Medicine and Department of Immunology and Microbiology, Anschutz Medical Campus, University of Colorado, Aurora, Colo.
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4
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Ayo CM, Bestetti RB, de Campos Junior E, Ronchi LS, Borim AA, Brandão CC, de Matttos LC. MICA and KIR: Immunogenetic Factors Influencing Left Ventricular Systolic Dysfunction and Digestive Clinical Form of Chronic Chagas Disease. Front Immunol 2021; 12:714766. [PMID: 34489964 PMCID: PMC8418128 DOI: 10.3389/fimmu.2021.714766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/26/2021] [Indexed: 11/13/2022] Open
Abstract
Tissue damage observed in the clinical forms of chronic symptomatic Chagas disease seems to have a close relationship with the intensity of the inflammatory process. The objective of this study was to investigate whether the MICA (MHC class I-related chain A) and KIR (killer cell immunoglobulin-like receptors) polymorphisms are associated with the cardiac and digestive clinical forms of chronic Chagas disease. Possible influence of these genes polymorphisms on the left ventricular systolic dysfunction (LVSD) in patients with chronic Chagas heart disease was also evaluated. This study enrolled 185 patients with positive serology for Trypanosoma cruzi classified according to the clinical form of the disease: cardiac (n=107) and digestive (n=78). Subsequently, patients with the cardiac form of the disease were sub-classified as with LVSD (n=52) and without LVSD (n=55). A control group was formed of 110 healthy individuals. Genotyping was performed by polymerase chain reaction-sequence specific oligonucleotide probes (PCR-SSOP). Statistical analyzes were carried out using the Chi-square test and odds ratio with 95% confidence interval was also calculated to evaluate the risk association. MICA-129 allele with high affinity for the NKG2D receptor was associated to the LVSD in patients with CCHD. The haplotype MICA*008~HLA-C*06 and the KIR2DS2-/KIR2DL2-/KIR2DL3+/C1+ combination were associated to the digestive clinical form of the disease. Our data showed that the MICA and KIR polymorphisms may exert a role in the LVSD of cardiac patients, and in digestive form of Chagas disease.
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Affiliation(s)
- Christiane Maria Ayo
- Immunogenetics Laboratory, Molecular Biology Department, Medicine School in São José do Rio Preto, São José do Rio Preto, Brazil
| | - Reinaldo Bulgarelli Bestetti
- Department of Cardiology and Cardiovascular Surgery, Medicine School in São José do Rio Preto, São José do Rio Preto, Brazil
| | | | - Luiz Sérgio Ronchi
- Surgery Department, Medicine School in São José do Rio Preto, São José do Rio Preto, Brazil
| | - Aldenis Albaneze Borim
- Surgery Department, Medicine School in São José do Rio Preto, São José do Rio Preto, Brazil
| | - Cinara Cássia Brandão
- Immunogenetics Laboratory, Molecular Biology Department, Medicine School in São José do Rio Preto, São José do Rio Preto, Brazil
| | - Luiz Carlos de Matttos
- Immunogenetics Laboratory, Molecular Biology Department, Medicine School in São José do Rio Preto, São José do Rio Preto, Brazil
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5
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Yang Y, Day J, Souza-Fonseca Guimaraes F, Wicks IP, Louis C. Natural killer cells in inflammatory autoimmune diseases. Clin Transl Immunology 2021; 10:e1250. [PMID: 33552511 PMCID: PMC7850912 DOI: 10.1002/cti2.1250] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/11/2021] [Accepted: 01/14/2021] [Indexed: 12/12/2022] Open
Abstract
Natural killer (NK) cells are a specialised population of innate lymphoid cells (ILCs) that help control local immune responses. Through natural cytotoxicity, production of cytokines and chemokines, and migratory capacity, NK cells play a vital immunoregulatory role in the initiation and chronicity of inflammatory and autoimmune responses. Our understanding of their functional differences and contributions in disease settings is evolving owing to new genetic and functional murine proof-of-concept studies. Here, we summarise current understanding of NK cells in several classic autoimmune disorders, particularly in rheumatoid arthritis (RA), multiple sclerosis (MS), systemic lupus erythematosus (SLE) and type 1 diabetes mellitus (T1DM), but also less understood diseases such as idiopathic inflammatory myopathies (IIMs). A better understanding of how NK cells contribute to these autoimmune disorders may pave the way for NK cell-targeted therapeutics.
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Affiliation(s)
- Yuyan Yang
- Tsinghua University School of Medicine Beijing China.,Inflammation Division The Walter and Eliza Hall Institute of Medical Research Parkville VIC Australia
| | - Jessica Day
- Inflammation Division The Walter and Eliza Hall Institute of Medical Research Parkville VIC Australia.,Medical Biology University of Melbourne Melbourne VIC Australia.,Rheumatology Unit The Royal Melbourne Hospital Parkville VIC Australia
| | | | - Ian P Wicks
- Inflammation Division The Walter and Eliza Hall Institute of Medical Research Parkville VIC Australia.,Medical Biology University of Melbourne Melbourne VIC Australia.,Rheumatology Unit The Royal Melbourne Hospital Parkville VIC Australia
| | - Cynthia Louis
- Inflammation Division The Walter and Eliza Hall Institute of Medical Research Parkville VIC Australia.,Medical Biology University of Melbourne Melbourne VIC Australia
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6
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Beigmohammadi F, Mahmoudi M, Karami J, Ahmadzadeh N, Ebrahimi-Daryani N, Rezaei N. Analysis of Killer Cell Immunoglobulin-Like Receptor Genes and Their HLA Ligands in Inflammatory Bowel Diseases. J Immunol Res 2020; 2020:4873648. [PMID: 33015197 PMCID: PMC7520679 DOI: 10.1155/2020/4873648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/16/2020] [Accepted: 09/08/2020] [Indexed: 12/12/2022] Open
Abstract
Genetic studies have illustrated that killer cell immunoglobulin-like receptor (KIR) genes could participate in various autoimmune disorders. We aimed to clarify the role of KIR genes, HLA ligands, HLA-KIR interactions, and their genotypes in inflammatory bowel disease (IBD) susceptibility. The study population was composed of 183 IBD subjects, comprising 100 ulcerative colitis (UC) patients, 83 Crohn's disease (CD) patients, and 274 healthy subjects. Polymerase chain reaction with sequence-specific primers (PCR-SSP) was used to evaluate the absence or presence of the 15 KIR genes, 5 HLA class I ligands, and 2 pseudogenes. We did not find any significant difference in allele frequency of KIRs and pseudogenes between IBD patients and healthy controls. In the case of HLA genes, there was a significant difference in HLA-B-Bw4Thr80 frequency between UC patients and healthy controls (P = 0.03, OR = 0.06, 95%CI = 0.008-0.4). Furthermore, we found a significant difference in HLA-C1Asn80 frequency between CD patients and healthy controls (P = 0.04, OR = 0.49, 95% CI = 0.3-0.8). In the full-array combination of KIR genes, there was no significant frequency difference between UC patients and healthy controls, while two KIR genotypes showed a significant susceptible association with CD. Our data do not support a strong role of NK cells in IBD susceptibility, but it does not rule out a role for KIR variability in IBD patients. However, there are some protective associations such as Bw4 alleles; these associations may be due to the interaction of the alleles to TCRs rather than KIRs.
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Affiliation(s)
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Rheumatology Expert Group (REG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Jafar Karami
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nooshin Ahmadzadeh
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nasser Ebrahimi-Daryani
- Department of Gastroenterology and Hepatology, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
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7
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Yang X, Yang E, Wang WJ, He Q, Jubiz G, Katukurundage D, Dambaeva S, Beaman K, Kwak-Kim J. Decreased HLA-C1 alleles in couples of KIR2DL2 positive women with recurrent pregnancy loss. J Reprod Immunol 2020; 142:103186. [PMID: 32846355 DOI: 10.1016/j.jri.2020.103186] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 08/03/2020] [Accepted: 08/08/2020] [Indexed: 12/11/2022]
Abstract
Specific killer cell immunoglobulin-like receptor (KIR) in women with recurrent pregnancy loss (RPL) and HLA ligands in couples invoke a susceptibility to RPL. However, the relationship between KIR2DL2 and its cognate ligand HLA-C1 has not been explored. In this prospective cohort study, 160 Caucasian women with RPL and 99 partners were included. KIR/HLA-C typing, NK assay, Th1/Th2 intracellular cytokine ratios, 25-(OH)-vitamin D level, and the presence of autoantibodies were analyzed. KIR2DL2 positive women (P = 0.023) and their partners (P = 0.017) had lower allele frequencies of HLA-C1 than those of KIR2DL2 negative women. KIR2DL2 positive women had significantly lower genotype frequency of HLA-C1C1 as compared to the North American Caucasian population controls (P < 0.05). In the partners of KIR2DL2 positive women, there was a substantially higher frequency of HLA-C2C2 than controls (P = 0.016). Besides, KIR2DL2 negative women had a higher prevalence of anti-ssDNA antibody as compared with that of KIR2DL2 positive women (P = 0.043). There were no differences in the distribution of HLA-C genotypes based on KIR2DL2, regardless of pregnancy outcome in women with RPL and their partners while on immunomodulation treatment. In conclusion, decreased ligands for inhibitory KIRs (inhKIR) could lead to insufficient inhibition of maternal uterine NK cells toward the trophoblast, thereby contributing to the pathogenesis of RPL. Specific KIR and HLA-C genotyping may predict the reproductive outcome of women with RPL.
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Affiliation(s)
- Xiuhua Yang
- Reproductive Medicine and Immunology, Department of Obstetrics and Gynecology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, Vernon Hills, 60061, IL, USA; Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, 60064, IL, USA; Department of Obstetrics, The First Hospital of China Medical University, Shenyang, 110001, Liaoning, China
| | - Ellen Yang
- Reproductive Medicine and Immunology, Department of Obstetrics and Gynecology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, Vernon Hills, 60061, IL, USA; Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, 60064, IL, USA
| | - Wen-Juan Wang
- Reproductive Medicine and Immunology, Department of Obstetrics and Gynecology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, Vernon Hills, 60061, IL, USA; Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, 60064, IL, USA
| | - Qiaohua He
- Reproductive Medicine and Immunology, Department of Obstetrics and Gynecology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, Vernon Hills, 60061, IL, USA; Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, 60064, IL, USA
| | - Giovanni Jubiz
- Reproductive Medicine and Immunology, Department of Obstetrics and Gynecology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, Vernon Hills, 60061, IL, USA; Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, 60064, IL, USA
| | - Dimantha Katukurundage
- Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, 60064, IL, USA
| | - Svetlana Dambaeva
- Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, 60064, IL, USA
| | - Kenneth Beaman
- Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, 60064, IL, USA
| | - Joanne Kwak-Kim
- Reproductive Medicine and Immunology, Department of Obstetrics and Gynecology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, Vernon Hills, 60061, IL, USA; Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, 60064, IL, USA.
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8
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Anderson KM, Augusto DG, Dandekar R, Shams H, Zhao C, Yusufali T, Montero-Martín G, Marin WM, Nemat-Gorgani N, Creary LE, Caillier S, Mofrad MRK, Parham P, Fernández-Viña M, Oksenberg JR, Norman PJ, Hollenbach JA. Killer Cell Immunoglobulin-like Receptor Variants Are Associated with Protection from Symptoms Associated with More Severe Course in Parkinson Disease. THE JOURNAL OF IMMUNOLOGY 2020; 205:1323-1330. [PMID: 32709660 DOI: 10.4049/jimmunol.2000144] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 06/28/2020] [Indexed: 12/12/2022]
Abstract
Immune dysfunction plays a role in the development of Parkinson disease (PD). NK cells regulate immune functions and are modulated by killer cell immunoglobulin-like receptors (KIR). KIR are expressed on the surface of NK cells and interact with HLA class I ligands on the surface of all nucleated cells. We investigated KIR-allelic polymorphism to interrogate the role of NK cells in PD. We sequenced KIR genes from 1314 PD patients and 1978 controls using next-generation methods and identified KIR genotypes using custom bioinformatics. We examined associations of KIR with PD susceptibility and disease features, including age at disease onset and clinical symptoms. We identified two KIR3DL1 alleles encoding highly expressed inhibitory receptors associated with protection from PD clinical features in the presence of their cognate ligand: KIR3DL1*015/HLA-Bw4 from rigidity (p c = 0.02, odds ratio [OR] = 0.39, 95% confidence interval [CI] 0.23-0.69) and KIR3DL1*002/HLA-Bw4i from gait difficulties (p c = 0.05, OR = 0.62, 95% CI 0.44-0.88), as well as composite symptoms associated with more severe disease. We also developed a KIR3DL1/HLA interaction strength metric and found that weak KIR3DL1/HLA interactions were associated with rigidity (pc = 0.05, OR = 9.73, 95% CI 2.13-172.5). Highly expressed KIR3DL1 variants protect against more debilitating symptoms of PD, strongly implying a role of NK cells in PD progression and manifestation.
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Affiliation(s)
- Kirsten M Anderson
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158
| | - Danillo G Augusto
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158
| | - Ravi Dandekar
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158
| | - Hengameh Shams
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158
| | - Chao Zhao
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158
| | - Tasneem Yusufali
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158
| | | | - Wesley M Marin
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158
| | - Neda Nemat-Gorgani
- Department of Structural Biology and Immunology, Stanford University, Palo Alto, CA 94305
| | - Lisa E Creary
- Department of Pathology, Stanford University School of Medicine, Palo Alto, CA 94304
| | - Stacy Caillier
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158
| | - Mohammad R K Mofrad
- Molecular Cell Biomechanics Laboratory, Department of Bioengineering and Mechanical Engineering, University of California, Berkeley, CA 94720; and
| | - Peter Parham
- Department of Structural Biology and Immunology, Stanford University, Palo Alto, CA 94305
| | | | - Jorge R Oksenberg
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158
| | - Paul J Norman
- Division of Biomedical Informatics and Personalized Medicine, Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Jill A Hollenbach
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158;
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9
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Ashton JJ, Latham K, Beattie RM, Ennis S. Review article: the genetics of the human leucocyte antigen region in inflammatory bowel disease. Aliment Pharmacol Ther 2019; 50:885-900. [PMID: 31518029 DOI: 10.1111/apt.15485] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/05/2019] [Accepted: 08/10/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND The human leucocyte antigen (HLA) complex, located at chromosome 6p21.3 is a highly polymorphic region containing the classical class I and II HLA genes. The region is highly associated with inflammatory bowel disease (IBD), largely through genome-wide association studies (GWAS). AIMS To review the role of HLA in immune function, summarise data on risk/protective HLA genotypes for IBD, discuss the role of HLA in IBD pathogenesis, treatment and examine limitations that might be addressed by future research. METHODS An organised search strategy was used to collate articles describing HLA genes in IBD, including Crohn's disease and ulcerative colitis. RESULTS All classical HLA genes with variation (including HLA-A, B, C, DRB1, DQA1, DQB1, DPA1 and DPB1) harbour IBD-associated genotypes. The most implicated gene is HLA-DRB1, with HLA-DRB1*03:01 the most associated risk allele in both Crohn's disease and ulcerative colitis. Elucidating precise disease associations is challenging due to high linkage disequilibrium between HLA genotypes. The mechanisms by which risk alleles cause disease are multifactorial, with the best evidence indicating structural and electrostatic alteration impacting antigen binding and downstream signalling. Adverse medication events have been associated with HLA genotypes including with thiopurines (pancreatitis) and anti-TNF agents (antibody formation). CONCLUSIONS The HLA complex is associated with multiple risk/protective alleles for IBD. Future research utilising long-read technology, ascertainment of zygosity and integration in disease modelling will improve the functional understanding and clinical translation of genetic findings.
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Affiliation(s)
- James J Ashton
- Human Genetics and Genomic Medicine, Faculty of Medicine, University of Southampton, Southampton, UK.,Department of Paediatric Gastroenterology, Southampton Children's Hospital, Southampton, UK
| | - Katy Latham
- Anthony Nolan Research Institute, University College London, London, UK
| | - Robert Mark Beattie
- Department of Paediatric Gastroenterology, Southampton Children's Hospital, Southampton, UK
| | - Sarah Ennis
- Human Genetics and Genomic Medicine, Faculty of Medicine, University of Southampton, Southampton, UK
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10
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Gwozdowicz S, Nestorowicz K, Graczyk-Pol E, Szlendak U, Rogatko-Koros M, Mika-Witkowska R, Pawliczak D, Zubala M, Malinowska A, Witkowska A, Nowak J. KIR specificity and avidity of standard and unusual C1, C2, Bw4, Bw6 and A3/11 amino acid motifs at entire HLA:KIR interface between NK and target cells, the functional and evolutionary classification of HLA class I molecules. Int J Immunogenet 2019; 46:217-231. [PMID: 31210416 DOI: 10.1111/iji.12433] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/04/2019] [Accepted: 04/23/2019] [Indexed: 12/19/2022]
Abstract
Natural killer (NK) cells make vital contributions to the immune system and the reproductive system. Notably, NK cells of donor origin can recognize and kill residual leukaemic cells and cure malignant patients in hematopoietic stem cell (HSC) transplant setting. NK cell function is regulated by KIRs that recognize cognate HLA class I molecules on target cells, depending on their amino acid residues. In review, we addressed the question of binding capacity and avidity of HLA class I molecules to different killer cell immunoglobulin-like receptors (KIRs) depending on all interacting amino acid residues both on HLA and KIR side. We searched PubMed database and analysed available HLA:KIR crystallographic data for amino acid residues in HLA molecules, those physically involved in binding KIRs (termed here the "entire KIR interface"). Within entire KIR interface, we selected five functional sequence motifs (14-19, 66-76, 77-84, 88-92 and 142-151) and classified them according to the conservation of their amino acid sequences among 8,942 HLA class I molecules. Although some conserved amino acid motifs were shared by different groups of KIR ligands, the HLA motif combinations were exclusive for the ligand groups. In 135 common HLA class I molecules with known HLA:KIR recognition, we found 54 combinations of five motifs in each of the KIR-binding interfaces (C1, C2, Bw4, A3/11) and conserved non-KIR-binding interfaces. Based on the entire KIR interface, this analysis allowed to classify 8,942 HLA class I molecules into KIR specificity groups. This functional and evolutionary classification of entire KIR interfaces provides a tool for unambiguously predicting HLA:KIR interactions for common and those HLA molecules that have not yet been functionally tested. Considering the entire KIR interface in HLA class I molecules, functional interactions of HLA and KIR can be predicted in immune responses, reproduction and allotransplantation. Further functional studies are needed on the HLA:KIR interaction variations caused by the repertoires of peptides presented by HLA molecules and KIR polymorphisms at allelic level.
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Affiliation(s)
- Slawomir Gwozdowicz
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Klaudia Nestorowicz
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Elzbieta Graczyk-Pol
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Urszula Szlendak
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Marta Rogatko-Koros
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Renata Mika-Witkowska
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Daria Pawliczak
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Marta Zubala
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Agnieszka Malinowska
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Agnieszka Witkowska
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Jacek Nowak
- Department of Immunogenetics, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
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11
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Samarani S, Mack DR, Bernstein CN, Iannello A, Debbeche O, Jantchou P, Faure C, Deslandres C, Amre DK, Ahmad A. Activating Killer-cell Immunoglobulin-like Receptor genes confer risk for Crohn's disease in children and adults of the Western European descent: Findings based on case-control studies. PLoS One 2019; 14:e0217767. [PMID: 31194766 PMCID: PMC6563976 DOI: 10.1371/journal.pone.0217767] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 05/17/2019] [Indexed: 12/14/2022] Open
Abstract
Background Killer-cell Immunoglobulin-like Receptor (KIR) genes encode receptors, which are mainly expressed on, and control functional activities of, Natural Killer (NK) cells. There exist six distinct activating KIR genes in humans, who differ from one another with respect to the repertoire of these genes. Because activated NK cells can potentially cause tissue destruction, we hypothesized that variation in the inherited activating KIR genes in humans is associated with their innate susceptibility/resistance to developing Crohn disease (CD). Methods We performed case control studies on three independent Canadian CD patient cohorts (all of the Western European descent): two comprising children (Montreal having 193 cases and 245 controls, and Ottawa having 93 cases and 120 controls) and the third one comprising predominantly adults (Winnipeg having 164 cases and 200 controls). We genotyped cases and controls for activating KIR genes by PCR with gene-specific primers and investigated associations between the genes and cases using unconditional logistic regression. Results We observed strong associations between all the six KIR genes and CD in Ottawa children, with the strongest risk observed for the KIR2DS1 (p = 1.7 x10-10). Associations between all but the KIR2DS2 were replicated in the Montreal cohort with the strongest association evident for the KIR2DS5 (8.0 x 10−10). Similarly associations between five genes were observed in the adult Winnipeg cohort. In this cohort, strongest associations were evident with the KIR2DS5 (8.75 x 10−8). An overall analysis for all cohorts showed strong associations with four of the genes, with the strongest association evident for the KIR2DS5 (p = 1.35 x 10−17). In the combined analysis for four KIR genes, individuals carrying one or more of the KIR genes were at significantly higher risks for acquiring CD (p = 3.5 x 10−34). Conclusions Activating KIR genes are associated with risk for developing CD in both children and adults.
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Affiliation(s)
- Suzanne Samarani
- Laboratory of Innate Immunity, CHU Sainte-Justine Research Center/Department of Microbiology, Infectious Diseases & Immunology, University of Montreal, Montreal, Quebec, Canada
| | - David R. Mack
- Department of Gastroenterology, Hepatology & Nutrition, Children’s Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Charles N. Bernstein
- IBD Clinical & Research Center, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Alexandre Iannello
- Laboratory of Innate Immunity, CHU Sainte-Justine Research Center/Department of Microbiology, Infectious Diseases & Immunology, University of Montreal, Montreal, Quebec, Canada
| | - Olfa Debbeche
- Laboratory of Innate Immunity, CHU Sainte-Justine Research Center/Department of Microbiology, Infectious Diseases & Immunology, University of Montreal, Montreal, Quebec, Canada
| | - Prevost Jantchou
- CHU Sainte-Justine Research Center/Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada
| | - Christophe Faure
- CHU Sainte-Justine Research Center/Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada
| | - Colette Deslandres
- CHU Sainte-Justine Research Center/Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada
| | - Devendra K. Amre
- CHU Sainte-Justine Research Center/Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada
- * E-mail: (AA); (DKA)
| | - Ali Ahmad
- Laboratory of Innate Immunity, CHU Sainte-Justine Research Center/Department of Microbiology, Infectious Diseases & Immunology, University of Montreal, Montreal, Quebec, Canada
- * E-mail: (AA); (DKA)
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12
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Augusto DG, Norman PJ, Dandekar R, Hollenbach JA. Fluctuating and Geographically Specific Selection Characterize Rapid Evolution of the Human KIR Region. Front Immunol 2019; 10:989. [PMID: 31156615 PMCID: PMC6533848 DOI: 10.3389/fimmu.2019.00989] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 04/16/2019] [Indexed: 01/04/2023] Open
Abstract
The killer-cell immunoglobulin-like receptor (KIR) region comprises a fast-evolving family of genes that encode receptors for natural killer (NK) cells and have crucial role in host defense. Evolution of KIR was examined in the context of the human genome. Gene-content diversity and single nucleotide polymorphisms (SNP) in the KIR genes and flanking regions were compared to >660,000 genome-wide SNPs in over 800 individuals from 52 populations of the human genome diversity panel (HGDP). KIR allelic diversity was further examined using next generation sequencing in a subset of 56 individuals. We identified the SNP rs587560 located in KIR3DL3 as a marker of KIR2DL2 and KIR2DL3 and, consequently, Cen A and Cen B haplotypes. We also show that combinations of two KIR2DL4 SNPs (rs35656676 and rs592645) distinguish KIR3DL1 from KIR3DS1 and also define the major KIR3DL1 high- and low-expressing alleles lineages. Comparing the diversity of the SNPs within the KIR region to remainder of the genome, we observed a high diversity for the centromeric KIR region consistent with balancing selection (p < 0.01); in contrast, centromeric KIR diversity is significantly reduced in East Asian populations (p < 0.01), indicating purifying selection. By analyzing SNP haplotypes in a region spanning ~500 kb that includes the KIR cluster, we observed evidence of strong positive selection in Africa for high-expressing KIR3DL1 alleles, favored over the low-expressing alleles (p < 0.01). In sharp contrast, the strong positive selection (p < 0.01) that we also observed in the telomeric KIR region in Oceanic populations tracked with a high frequency of KIR3DS1. In addition, we demonstrated that worldwide frequency of high-expression KIR3DL1 alleles was correlated with virus with virus (r = 0.64, p < 10−6) and protozoa (r = 0.69, p < 10−6) loads, which points to selection globally on KIR3DL1 high-expressing alleles attributable to pathogen exposure.
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Affiliation(s)
- Danillo G Augusto
- Department of Neurology, University of California, San Francisco, San Francisco, CA, United States
| | - Paul J Norman
- Division of Biomedical Informatics and Personalized Medicine, Department of Immunology, University of Colorado, Denver, CO, United States
| | - Ravi Dandekar
- Department of Neurology, University of California, San Francisco, San Francisco, CA, United States
| | - Jill A Hollenbach
- Department of Neurology, University of California, San Francisco, San Francisco, CA, United States
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13
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Mack SJ, Udell J, Cohen F, Osoegawa K, Hawbecker SK, Noonan DA, Ladner MB, Goodridge D, Trachtenberg EA, Oksenberg JR, Erlich HA. High resolution HLA analysis reveals independent class I haplotypes and amino-acid motifs protective for multiple sclerosis. Genes Immun 2019; 20:308-326. [PMID: 29307888 PMCID: PMC6035897 DOI: 10.1038/s41435-017-0006-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 07/31/2017] [Accepted: 08/11/2017] [Indexed: 11/24/2022]
Abstract
We investigated association between HLA class I and class II alleles and haplotypes, and KIR loci and their HLA class I ligands, with multiple sclerosis (MS) in 412 European American MS patients and 419 ethnically matched controls, using next-generation sequencing. The DRB1*15:01~DQB1*06:02 haplotype was highly predisposing (odds ratio (OR) = 3.98; 95% confidence interval (CI) = 3-5.31; p-value (p) = 2.22E-16), as was DRB1*03:01~DQB1*02:01 (OR = 1.63; CI = 1.19-2.24; p = 1.41E-03). Hardy-Weinberg (HW) analysis in MS patients revealed a significant DRB1*03:01~DQB1*02:01 homozyote excess (15 observed; 8.6 expected; p = 0.016). The OR for this genotype (5.27; CI = 1.47-28.52; p = 0.0036) suggests a recessive MS risk model. Controls displayed no HW deviations. The C*03:04~B*40:01 haplotype (OR = 0.27; CI = 0.14-0.51; p = 6.76E-06) was highly protective for MS, especially in haplotypes with A*02:01 (OR = 0.15; CI = 0.04-0.45; p = 6.51E-05). By itself, A*02:01 is moderately protective, (OR = 0.69; CI = 0.54-0.87; p = 1.46E-03), and haplotypes of A*02:01 with the HLA-B Thr80 Bw4 variant (Bw4T) more so (OR = 0.53; CI = 0.35-0.78; p = 7.55E-04). Protective associations with the Bw4 KIR ligand resulted from linkage disequilibrium (LD) with DRB1*15:01, but the Bw4T variant was protective (OR = 0.64; CI = 0.49-0.82; p = 3.37-04) independent of LD with DRB1*15:01. The Bw4I variant was not associated with MS. Overall, we find specific class I HLA polymorphisms to be protective for MS, independent of the strong predisposition conferred by DRB1*15:01.
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Affiliation(s)
- Steven J Mack
- Center for Genetics, Children's Hospital Oakland Research Institute, Oakland, CA, USA.
| | - Julia Udell
- University of Minnesota Twin Cities, Minneapolis, MN, USA
| | - Franziska Cohen
- Center for Genetics, Children's Hospital Oakland Research Institute, Oakland, CA, USA
| | - Kazutoyo Osoegawa
- Histocompatibility, Immunogenetics & Disease Profiling Laboratory, Stanford Blood Center, Palo Alto, CA, USA
| | - Sharon K Hawbecker
- Center for Genetics, Children's Hospital Oakland Research Institute, Oakland, CA, USA
| | - David A Noonan
- Center for Genetics, Children's Hospital Oakland Research Institute, Oakland, CA, USA
| | - Martha B Ladner
- Center for Genetics, Children's Hospital Oakland Research Institute, Oakland, CA, USA
| | | | | | - Jorge R Oksenberg
- Department of Neurology, University of California, San Francisco, CA, USA
| | - Henry A Erlich
- Center for Genetics, Children's Hospital Oakland Research Institute, Oakland, CA, USA
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14
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Misra MK, Augusto DG, Martin GM, Nemat-Gorgani N, Sauter J, Hofmann JA, Traherne JA, González-Quezada B, Gorodezky C, Bultitude WP, Marin W, Vierra-Green C, Anderson KM, Balas A, Caro-Oleas JL, Cisneros E, Colucci F, Dandekar R, Elfishawi SM, Fernández-Viña MA, Fouda M, González-Fernández R, Große A, Herrero-Mata MJ, Hollenbach SQ, Marsh SGE, Mentzer A, Middleton D, Moffett A, Moreno-Hidalgo MA, Mossallam GI, Nakimuli A, Oksenberg JR, Oppenheimer SJ, Parham P, Petzl-Erler ML, Planelles D, Sánchez-García F, Sánchez-Gordo F, Schmidt AH, Trowsdale J, Vargas LB, Vicario JL, Vilches C, Norman PJ, Hollenbach JA. Report from the Killer-cell Immunoglobulin-like Receptors (KIR) component of the 17th International HLA and Immunogenetics Workshop. Hum Immunol 2018; 79:825-833. [PMID: 30321631 DOI: 10.1016/j.humimm.2018.10.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/07/2018] [Accepted: 10/08/2018] [Indexed: 12/16/2022]
Abstract
The goals of the KIR component of the 17th International HLA and Immunogenetics Workshop (IHIW) were to encourage and educate researchers to begin analyzing KIR at allelic resolution, and to survey the nature and extent of KIR allelic diversity across human populations. To represent worldwide diversity, we analyzed 1269 individuals from ten populations, focusing on the most polymorphic KIR genes, which express receptors having three immunoglobulin (Ig)-like domains (KIR3DL1/S1, KIR3DL2 and KIR3DL3). We identified 13 novel alleles of KIR3DL1/S1, 13 of KIR3DL2 and 18 of KIR3DL3. Previously identified alleles, corresponding to 33 alleles of KIR3DL1/S1, 38 of KIR3DL2, and 43 of KIR3DL3, represented over 90% of the observed allele frequencies for these genes. In total we observed 37 KIR3DL1/S1 allotypes, 40 for KIR3DL2 and 44 for KIR3DL3. As KIR allotype diversity can affect NK cell function, this demonstrates potential for high functional diversity worldwide. Allelic variation further diversifies KIR haplotypes. We determined KIR3DL3 ∼ KIR3DL1/S1 ∼ KIR3DL2 haplotypes from five of the studied populations, and observed multiple population-specific haplotypes in each. This included 234 distinct haplotypes in European Americans, 191 in Ugandans, 35 in Papuans, 95 in Egyptians and 86 in Spanish populations. For another 35 populations, encompassing 642,105 individuals we focused on KIR3DL2 and identified another 375 novel alleles, with approximately half of them observed in more than one individual. The KIR allelic level data gathered from this project represents the most comprehensive summary of global KIR allelic diversity to date, and continued analysis will improve understanding of KIR allelic polymorphism in global populations. Further, the wealth of new data gathered in the course of this workshop component highlights the value of collaborative, community-based efforts in immunogenetics research, exemplified by the IHIW.
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Affiliation(s)
- Maneesh K Misra
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | - Danillo G Augusto
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA; Department of Genetics, Universidade Federal do Paraná, Curitiba, Brazil
| | - Gonzalo Montero Martin
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94304, USA
| | - Neda Nemat-Gorgani
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | | | | | | | - Betsy González-Quezada
- Department of Immunology and Immunogenetics, InDRE, Secretary of Health, Francisco P. Miranda #177, Colonia Lomas de Plateros, Del. Álvaro Obregón, CP 01480, Mexico City, Mexico; Fundación Comparte Vida, A.C. Galileo #92, Col. Polanco, Del. Miguel Hidalgo, CP 11550 Mexico City, Mexico
| | - Clara Gorodezky
- Department of Immunology and Immunogenetics, InDRE, Secretary of Health, Francisco P. Miranda #177, Colonia Lomas de Plateros, Del. Álvaro Obregón, CP 01480, Mexico City, Mexico; Fundación Comparte Vida, A.C. Galileo #92, Col. Polanco, Del. Miguel Hidalgo, CP 11550 Mexico City, Mexico
| | - Will P Bultitude
- Anthony Nolan Research Institute and UCL Cancer Institute, Royal Free Campus, Pond Street, London NW3 2QG, UK
| | - Wesley Marin
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | - Cynthia Vierra-Green
- Center for International Blood and Marrow Transplant Research, Minneapolis, MN, USA
| | - Kirsten M Anderson
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | - Antonio Balas
- Histocompatibility, Centro de Transfusión de la Comunidad de Madrid, Madrid, Spain
| | - Jose L Caro-Oleas
- Histocompatibility and Immunogenetics, Banc de Sang i Teixits, Barcelona, Spain
| | - Elisa Cisneros
- Immunogenetics and Histocompatibility, Instituto de Investigación Sanitaria Puerta de Hierro, Madrid, Spain
| | - Francesco Colucci
- Department of Obstetrics and Gynaecology, National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge School of Clinical Medicine, Cambridge, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Ravi Dandekar
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | | | | | - Merhan Fouda
- National Cancer Institute, Cairo University, Cairo, Egypt
| | | | | | | | | | - Steven G E Marsh
- Anthony Nolan Research Institute and UCL Cancer Institute, Royal Free Campus, Pond Street, London NW3 2QG, UK
| | - Alex Mentzer
- Wellcome Trust Centre for Human Genetics, and Jenner Institute, University of Oxford, Oxford, UK
| | | | - Ashley Moffett
- Department of Pathology, University of Cambridge, Cambridge, UK; Centre for Trophoblast Research, Cambridge, UK
| | | | | | - Annettee Nakimuli
- Department of Obstetrics and Gynecology, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Jorge R Oksenberg
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | | | - Peter Parham
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | | | - Dolores Planelles
- Histocompatibility, Centro de Transfusión de la Comunidad Valenciana, Valencia, Spain
| | | | | | | | - John Trowsdale
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Luciana B Vargas
- Department of Genetics, Universidade Federal do Paraná, Curitiba, Brazil
| | - Jose L Vicario
- Histocompatibility, Centro de Transfusión de la Comunidad de Madrid, Madrid, Spain
| | - Carlos Vilches
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
| | - Paul J Norman
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA; Division of Biomedical Informatics and Personalized Medicine, and Department of Immunology, University of Colorado, Denver, CO 80045, United States
| | - Jill A Hollenbach
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA.
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15
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Li J, Glover SC. Innate Lymphoid Cells in Inflammatory Bowel Disease. Arch Immunol Ther Exp (Warsz) 2018; 66:415-421. [PMID: 30155762 DOI: 10.1007/s00005-018-0519-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 05/18/2018] [Indexed: 12/25/2022]
Abstract
Inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, is a complex chronic inflammatory condition of the human gut of unknown causes. Traditionally, dysregulated adaptive immune responses are thought to play a major role; however, accumulating evidence suggests that innate immunity also contributes to this process. Innate lymphoid cells (ILCs) are recently identified important components of innate immunity. They have critical roles in immunity, tissue development and remodeling. Numerous researchers have linked ILCs to the pathogenesis of IBD. In this review, we describe recent progress in our understanding about the phenotype and function alterations of ILCs as well as its interactions with other key mucosal cells in the gut of IBD patients. A better delineation of the ILCs' behavior in the human intestine will contribute to our understanding of ILCs biology and provide valuable insights for potential therapeutic target selection for IBD patients.
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Affiliation(s)
- Jian Li
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Florida, 1600 SW Archer Rd, PO Box 100214, Gainesville, FL, 32610, USA
| | - Sarah C Glover
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Florida, 1600 SW Archer Rd, PO Box 100214, Gainesville, FL, 32610, USA.
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16
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Weisdorf D, Cooley S, Wang T, Trachtenberg E, Haagenson MD, Vierra-Green C, Spellman S, Spahn A, Vogel J, Kobusingye H, Fehninger T, Woolfrey A, Devine S, Ross M, Waller EK, Sobecks R, Parham P, Guethlein LA, Marsh SGE, Miller J. KIR Donor Selection: Feasibility in Identifying better Donors. Biol Blood Marrow Transplant 2018; 25:e28-e32. [PMID: 30149149 DOI: 10.1016/j.bbmt.2018.08.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 08/18/2018] [Indexed: 01/17/2023]
Abstract
We previously reported that acute myelogenous leukemia (AML) transplants using killer cell immunoglobulin-type receptor (KIR) B haplotype better or best (≥2 B activating gene loci ± Cen B/B) unrelated donors (URDs) yield less relapse and better survival. In this prospective trial we evaluated 535 AML searches from 14 participating centers with centralized donor KIR genotyping for donor selection. This represented 3% to 48% of all AML searches (median 20%) per center, totaling 3 to 172 patients (median 22) per center. Donor KIR genotype was reported at a median of 14 days after request (≤26 days for 76% of searches). In 535 searches, 2080 donors were requested for KIR genotyping (mean 4.3 per search); and a median of 1.8 (range, 0 to 4.5) per search were KIR typed. Choosing more donors for confirmatory HLA and KIR haplotype identification enriched the likelihood of finding KIR better or best donors. The search process identified a mean of 30% KIR better or best donors; the success ranged from 24% to 38% in the 11 centers enrolling ≥8 patients. More donors requested for KIR genotyping increased the likelihood of identifying KIR better or best haplotype donors. Of the 247 transplants, 9.3% used KIR best, 19% used KIR better, and 48% used KIR neutral donors while 24% used a non-KIR-tested donor. KIR genotyping did not delay transplantation. The time from search to transplant was identical for transplants using a KIR-genotyped versus a non-KIR-genotyped donor. Prospective evaluation can rapidly identify KIR favorable genotype donors, but choosing more donors per search would substantially increase the likelihood of having a KIR best or better donor available for transplantation. Transplant centers and donor registries must both commit extra effort to incorporate new characteristics (beyond HLA, age, and parity) into improved donor selection. Deliberate efforts to present additional genetic factors for donor selection will require novel procedures.
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Affiliation(s)
- Daniel Weisdorf
- Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, Minnesota.
| | - Sarah Cooley
- Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, Minnesota
| | - Tao Wang
- Division of Biostatistics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | | | - Michael D Haagenson
- Center for International Blood and Marrow Transplant Research, Milwaukee, WI & Minneapolis, MN
| | - Cynthia Vierra-Green
- Center for International Blood and Marrow Transplant Research, Milwaukee, WI & Minneapolis, MN
| | - Stephen Spellman
- Center for International Blood and Marrow Transplant Research, Milwaukee, WI & Minneapolis, MN
| | - Ashley Spahn
- Center for International Blood and Marrow Transplant Research, Milwaukee, WI & Minneapolis, MN
| | - Jenny Vogel
- Center for International Blood and Marrow Transplant Research, Milwaukee, WI & Minneapolis, MN
| | - Hati Kobusingye
- Center for International Blood and Marrow Transplant Research, Milwaukee, WI & Minneapolis, MN
| | | | - Ann Woolfrey
- Fred Hutchinson Cancer Research Center, Seattle, Washington
| | | | | | | | | | | | | | - Steven G E Marsh
- Anthony Nolan Research Institute and UCL Cancer Institute, Royal Free Campus, London, United Kingdom
| | - Jeffrey Miller
- Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, Minnesota
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17
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Zitti B, Bryceson YT. Natural killer cells in inflammation and autoimmunity. Cytokine Growth Factor Rev 2018; 42:37-46. [PMID: 30122459 DOI: 10.1016/j.cytogfr.2018.08.001] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 08/09/2018] [Indexed: 12/31/2022]
Abstract
First described 40 years ago, natural killer (NK) cells represent the founding members of the innate lymphoid cell (ILC) family. They were initially defined by their ability to kill cancer cells of hematopoietic origin. More recently, NK cells are recognized not only for their ability to kill infected or malignant cells, but also for mediating cytotoxicity against a range of normal immune cells. They thereby play an important physiological role in controlling immune responses and maintaining homeostasis. Besides cytotoxic activity, NK cells activation is accompanied by secretion of pro-inflammatory cytokines. Hence, NK cells have the potential to act both in driving inflammation and in restricting adaptive immune responses that may otherwise lead to excessive inflammation or even autoimmunity. Here, we highlight how NK cell activity is linked to inflammasome activation and review new molecular insights to the roles of NK cells in inflammation and autoimmunity. Furthermore, in light of new insights to NK cell differentiation and memory, we deliberate on how distinct NK cell subsets may impact immunoregulatory functions. Hypothetically, memory-like or adaptive NK cells could drive NK cell-mediated autoreactive diseases. Together, new findings underscore the complex yet important physiological roles of NK cells in both promoting inflammation and exerting immunoregulation and maintenance of immune homeostasis. Insights raise intriguing questions as to how NK cells themselves maintain self-tolerance.
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Affiliation(s)
- Beatrice Zitti
- Center for Hematology and Regenerative Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Yenan T Bryceson
- Center for Hematology and Regenerative Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden; Broegelmann Research Laboratory, Department of Clinical Sciences, University of Bergen, Bergen, Norway.
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The role of killer-cell immunoglobulin-like receptor (KIR) genes in susceptibility to inflammatory bowel disease: systematic review and meta-analysis. Inflamm Res 2018; 67:727-736. [PMID: 29869094 DOI: 10.1007/s00011-018-1162-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 05/26/2018] [Accepted: 05/29/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Inflammatory bowel disease (IBD) is a chronic inflammatory disease, which involves the gut and comprises of Crohn's disease (CD) and ulcerative colitis (UC). Immune cells, including natural killer (NK) cells, play an important role in the pathogenesis of the disease. Killer immunoglobulin-like receptors (KIRs) are NK cell surface receptors, which ligate to the class I major histocompatibility complex (MHC) and have inhibitory or activating effects on the NK cells. The aim of this study was to perform a meta-analysis of the six studies evaluating the association in the polymorphisms of these KIR genes and the IBD risk (4 UC and 5 CD studies). METHODS A systematic search was conducted in the electronic databases to find all the studies on the KIR gene polymorphism in IBD patients prior to December 2017. The odds ratio (OR) and 95% confidence interval (CI) were used to find any association between KIR gene polymorphisms and the IBD risk. RESULTS Following extraction of the data from the studies, which were screened by inclusion and exclusion criteria, collectively 432 patients and 886 controls for UC and 1677 patients and 1308 controls for CD were included in the meta-analysis. The statistical evaluation demonstrated positive associations between 2DL5 (OR=1.31, 95% CI=1.01-1.69) and 2DS1 (OR=1.33, 95% CI=1.01-1.76) members of KIR genes and UC risk, as well a negative association between 2DS3 gene and CD risk was detected (OR=0.74, 95% CI=0.60-0.90). CONCLUSIONS There are positive associations between 2DL5 and 2DS1 members of KIR genes and UC risk and a negative association between 2DS3 and CD risk.
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Saito H, Hirayama A, Umemura T, Joshita S, Mukawa K, Suga T, Tanaka E, Ota M. Association between KIR-HLA combination and ulcerative colitis and Crohn's disease in a Japanese population. PLoS One 2018; 13:e0195778. [PMID: 29649328 PMCID: PMC5897008 DOI: 10.1371/journal.pone.0195778] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 03/29/2018] [Indexed: 12/16/2022] Open
Abstract
Inflammatory bowel disease (IBD) consists of ulcerative colitis (UC) and Crohn’s disease (CD). Natural killer cell responses play a crucial role in autoimmune disease through innate immunity, in which killer cell immunoglobulin-like receptors (KIRs) are closely involved. Although the genetic combination of KIRs with their specific HLA class I ligands has been associated with IBD in Caucasians, such KIR-HLA receptor-ligand combinations are not fully understood in the Japanese. We investigated 14 KIR genes along with HLA-Bw and -C ligands in 90 patients with UC and 50 patients with CD and compared them with the characteristics of 325 healthy control subjects. The frequency of HLA-Bw4 was significantly increased in patients with UC (P = 1.3 × 10−6; odds ratio [OR] = 3.39) and CD (P = 0.0065; OR = 2.32) versus controls. The UC group had a significantly higher frequency of KIR2DS3 (P = 0.024; OR = 1.94) and lower frequency of KIR2DS4 (P = 0.019; OR = 0.40) and KIR2DL1-HLA-C2 (P = 0.035; OR = 0.47). The Tel-A/B haplotype was significantly decreased in UC patients (P = 0.0056; OR = 0.49). The frequency of KIR3DL1-HLA-Bw4 was significantly higher in patients with UC (P = 4.3 × 10−6; OR = 3.12) and CD (P = 0.0067; OR = 2.30). In conclusion, HLA-Bw4 and KIR-HLA pairs may play an important role in the genetic susceptibility to IBD in the Japanese.
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Affiliation(s)
- Hiromi Saito
- Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Atsuhiro Hirayama
- Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takeji Umemura
- Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
- * E-mail:
| | - Satoru Joshita
- Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kenji Mukawa
- Department of Gastroenterology, Suwa Red Cross Hospital, Suwa, Japan
| | - Tomoaki Suga
- Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Eiji Tanaka
- Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Masao Ota
- Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
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20
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Misra MK, Damotte V, Hollenbach JA. The immunogenetics of neurological disease. Immunology 2018; 153:399-414. [PMID: 29159928 PMCID: PMC5838423 DOI: 10.1111/imm.12869] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/09/2017] [Accepted: 11/14/2017] [Indexed: 12/18/2022] Open
Abstract
Genes encoding antigen-presenting molecules within the human major histocompatibility complex (MHC) account for the highest component of genetic risk for many neurological diseases, such as multiple sclerosis, neuromyelitis optica, Parkinson's disease, Alzheimer's disease, schizophrenia, myasthenia gravis and amyotrophic lateral sclerosis. Myriad genetic, immunological and environmental factors may contribute to an individual's susceptibility to neurological disease. Here, we review and discuss the decades long research on the influence of genetic variation at the MHC locus and the role of immunogenetic killer cell immunoglobulin-like receptor (KIR) loci in neurological diseases, including multiple sclerosis, neuromyelitis optica, Parkinson's disease, Alzheimer's disease, schizophrenia, myasthenia gravis and amyotrophic lateral sclerosis. The findings of immunogenetic association studies are consistent with a polygenic model of inheritance in the heterogeneous and multifactorial nature of complex traits in various neurological diseases. Future investigation is highly recommended to evaluate both coding and non-coding variation in immunogenetic loci using high-throughput high-resolution next-generation sequencing technologies in diverse ethnic groups to fully appreciate their role in neurological diseases.
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Affiliation(s)
- Maneesh K. Misra
- Department of NeurologySan Francisco School of MedicineUniversity of CaliforniaSan FranciscoCAUSA
| | - Vincent Damotte
- Department of NeurologySan Francisco School of MedicineUniversity of CaliforniaSan FranciscoCAUSA
| | - Jill A. Hollenbach
- Department of NeurologySan Francisco School of MedicineUniversity of CaliforniaSan FranciscoCAUSA
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21
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Gianchecchi E, Delfino DV, Fierabracci A. NK cells in autoimmune diseases: Linking innate and adaptive immune responses. Autoimmun Rev 2018; 17:142-154. [DOI: 10.1016/j.autrev.2017.11.018] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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22
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NK cells are biologic and biochemical targets of 6-mercaptopurine in Crohn's disease patients. Clin Immunol 2016; 175:82-90. [PMID: 28011186 DOI: 10.1016/j.clim.2016.12.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/11/2016] [Accepted: 12/16/2016] [Indexed: 01/18/2023]
Abstract
NK cells, which contribute to immune defense against certain viral infections and neoplasia, are emerging as modifiers of chronic immunologic diseases including transplant rejection and autoimmune diseases. Immunobiology and genetic studies have implicated NK cells as a modifier of Crohn's disease, a condition often treated with thiopurine agents such as 6-mercaptopurine (6-MP). Here, we demonstrate that thiopurines mediate NK cell apoptosis via a caspase 3 and 9 inclusive pathway, and that this process is triggered by thiopurine-mediated inhibition of Rac1. We also show that CD patients in clinical remission maintained on 6-MP have decreased NK cell Rac1 activity, and decreased NK cell numbers in their intestinal biopsies. These observations suggest that thiopurine targeting of NK cells may be a previously unappreciated therapeutic action of these agents in IBD.
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23
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Canossi A, Aureli A, Del Beato T, Rossi P, Franceschilli L, De Sanctis F, Sileri P, di Lorenzo N, Buonomo O, Lauro D, Venditti A, Sconocchia G. Role of KIR and CD16A genotypes in colorectal carcinoma genetic risk and clinical stage. J Transl Med 2016; 14:239. [PMID: 27519478 PMCID: PMC4983069 DOI: 10.1186/s12967-016-1001-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 08/03/2016] [Indexed: 02/07/2023] Open
Abstract
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 Fcγ 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. Electronic supplementary material The online version of this article (doi:10.1186/s12967-016-1001-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Angelica Canossi
- Laboratory of Tumor Immunology and Immunotherapy, CNR Institute of Translational Pharmacology (IFT), Via Fosso del Cavaliere 100, 00133, L'Aquila, Rome, Italy
| | - Anna Aureli
- Laboratory of Tumor Immunology and Immunotherapy, CNR Institute of Translational Pharmacology (IFT), Via Fosso del Cavaliere 100, 00133, L'Aquila, Rome, Italy
| | - Tiziana Del Beato
- Laboratory of Tumor Immunology and Immunotherapy, CNR Institute of Translational Pharmacology (IFT), Via Fosso del Cavaliere 100, 00133, L'Aquila, Rome, Italy
| | - Piero Rossi
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Luana Franceschilli
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Flavio De Sanctis
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Pierpaolo Sileri
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Nicola di Lorenzo
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Oreste Buonomo
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Davide Lauro
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Adriano Venditti
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Giuseppe Sconocchia
- Laboratory of Tumor Immunology and Immunotherapy, CNR Institute of Translational Pharmacology (IFT), Via Fosso del Cavaliere 100, 00133, L'Aquila, Rome, Italy.
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Wcisel DJ, Yoder JA. The confounding complexity of innate immune receptors within and between teleost species. FISH & SHELLFISH IMMUNOLOGY 2016; 53:24-34. [PMID: 26997203 DOI: 10.1016/j.fsi.2016.03.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 03/03/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
Teleost genomes encode multiple multigene families of immunoglobulin domain-containing innate immune receptors (IIIRs) with unknown function and no clear mammalian orthologs. However, the genomic organization of IIIR gene clusters and the structure and signaling motifs of the proteins they encode are similar to those of mammalian innate immune receptor families such as the killer cell immunoglobulin-like receptors (KIRs), leukocyte immunoglobulin-like receptors (LILRs), Fc receptors, triggering receptors expressed on myeloid cells (TREMs) and CD300s. Teleost IIIRs include novel immune-type receptors (NITRs); diverse immunoglobulin domain containing proteins (DICPs); polymeric immunoglobulin receptor-like proteins (PIGRLs); novel immunoglobulin-like transcripts (NILTs) and leukocyte immune-type receptors (LITRs). The accumulation of genomic sequence data has revealed that IIIR gene clusters in zebrafish display haplotypic and gene content variation. This intraspecific genetic variation, as well as significant interspecific variation, frequently confounds the identification of definitive orthologous IIIR sequences between teleost species. Nevertheless, by defining which teleost lineages encode (and do not encode) different IIIR families, predictions can be made about the presence (or absence) of specific IIIR families in each teleost lineage. It is anticipated that further investigations into available genomic resources and the sequencing of a variety of multiple teleost genomes will identify additional IIIR families and permit the modeling of the evolutionary origins of IIIRs.
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Affiliation(s)
- Dustin J Wcisel
- Department of Molecular Biomedical Sciences, North Carolina State University, Raleigh, NC 27607, USA
| | - Jeffrey A Yoder
- Department of Molecular Biomedical Sciences, North Carolina State University, Raleigh, NC 27607, USA; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA; Center for Human Health and the Environment, North Carolina State University, Raleigh, NC 27607, USA.
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25
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Abstract
BACKGROUND A dysregulated mucosal immune response to the intestinal environment in a genetically susceptible host is hypothesized to be critical to the pathogenesis of Crohn's disease (CD). Therefore, we examined CD-susceptibility genes involved in the immune response through a genome-wide association study and consecutive genotyping of human leukocyte antigens (HLAs) and killer cell immunoglobulin-like receptors. METHODS An initial genome-wide association study was performed with 275 CD patients and 2369 controls from a Korean population. To validate the loci identified in the genome-wide association study, replication genotyping was performed in a different cohort of 242 CD patients and 1066 controls. Finally, high-resolution genotyping of HLA and killer cell immunoglobulin-like receptor was performed. RESULTS Four susceptibility loci, a promoter region in tumor necrosis factor (ligand) superfamily member (TNFSF15) and 3 independent regions in HLAs, showed significant associations with CD. Among them, rs114985235 in the intergenic region between HLA-B and HLA-C showed the strongest association, with an increased risk of CD (P = 8.71 × 10; odds ratio, 2.25). HLA typing in this region showed HLA-C*01 to be responsible for the association of CD among 43 HLA-B and HLA-C genotypes identified in the Korean population. However, the interaction of HLA-C with killer cell immunoglobulin-like receptor had little effect on the development of CD. CONCLUSIONS We newly identified HLA-C*01 as a prominent CD-susceptibility HLA allotype in the Korean population. In addition, these results confirm that genetic variations in immune response genes, such as HLAs and TNFSF15, are important host factors for the pathogenesis of CD.
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26
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Bari R, Thapa R, Bao J, Li Y, Zheng J, Leung W. KIR2DL2/2DL3-E(35) alleles are functionally stronger than -Q(35) alleles. Sci Rep 2016; 6:23689. [PMID: 27030405 PMCID: PMC4814820 DOI: 10.1038/srep23689] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 03/09/2016] [Indexed: 11/26/2022] Open
Abstract
KIR2DL2 and KIR2DL3 segregate as alleles of a single locus in the centromeric motif of the killer cell immunoglobulin-like receptor (KIR) gene family. Although KIR2DL2/L3 polymorphism is known to be associated with many human diseases and is an important factor for donor selection in allogeneic hematopoietic stem cell transplantation, the molecular determinant of functional diversity among various alleles is unclear. In this study we found that KIR2DL2/L3 with glutamic acid at position 35 (E35) are functionally stronger than those with glutamine at the same position (Q35). Cytotoxicity assay showed that NK cells from HLA-C1 positive donors with KIR2DL2/L3-E35 could kill more target cells lacking their ligands than NK cells with the weaker -Q35 alleles, indicating better licensing of KIR2DL2/L3+ NK cells with the stronger alleles. Molecular modeling analysis reveals that the glutamic acid, which is negatively charged, interacts with positively charged histidine located at position 55, thereby stabilizing KIR2DL2/L3 dimer and reducing entropy loss when KIR2DL2/3 binds to HLA-C ligand. The results of this study will be important for future studies of KIR2DL2/L3-associated diseases as well as for donor selection in allogeneic stem cell transplantation.
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Affiliation(s)
- Rafijul Bari
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Rajoo Thapa
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Ju Bao
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Ying Li
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Jie Zheng
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Wing Leung
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.,Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, USA
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27
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Vineretsky KA, Karagas MR, Christensen BC, Kuriger-Laber JK, Perry AE, Storm CA, Nelson HH. Skin Cancer Risk Is Modified by KIR/HLA Interactions That Influence the Activation of Natural Killer Immune Cells. Cancer Res 2016; 76:370-6. [PMID: 26744525 DOI: 10.1158/0008-5472.can-15-0547] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 10/21/2015] [Indexed: 11/16/2022]
Abstract
Natural killer (NK)-cell phenotype is partially mediated through binding of killer-cell immunoglobulin-like receptors (KIR) with HLA class I ligands. The KIR gene family is highly polymorphic and not well captured by standard genome-wide association study approaches. Here, we tested the hypothesis that variations in KIR gene content combined with HLA class I ligand status is associated with keratinocyte skin cancers using a population-based study of basal cell carcinoma (BCC) and squamous cell carcinomas (SCC). We conducted an interaction analysis of KIR gene content variation and HLA-B (Bw4 vs. Bw6) and HLA-C (C1 vs. C2). KIR centromeric B haplotype was associated with significant risk of multiple BCC tumors (OR, 2.39; 95% confidence interval, 1.10-5.21), and there was a significant interaction between HLA-C and the activating gene KIR2DS3 for BCC (Pinteraction = 0.005). Furthermore, there was significant interaction between HLA-B and telomeric KIR B haplotype (containing the activating genes KIR3DS1 and KIR2DS1) as well as HLA-B and the activating KIR gene KIR2DS5 (Pinteraction 0.001 and 0.012, respectively). Similar but greatly attenuated associations were observed for SCC. Moreover, previous in vitro models demonstrated that p53 is required for upregulation of NK ligands, and accordingly, we observed there was a strong association between the KIR B haplotype and p53 alteration in BCC tumors, with a higher likelihood that KIR B carriers harbor abnormal p53 (P < 0.004). Taken together, our data suggest that functional interactions between KIR and HLA modify risks of BCC and SCC and that KIR encoded by the B genes provides selective pressure for altered p53 in BCC tumors.
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Affiliation(s)
- Karin A Vineretsky
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, Minnesota
| | - Margaret R Karagas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. Department of Pharmacology and Toxicology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | | | - Ann E Perry
- Department of Pathology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Craig A Storm
- Department of Pathology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Heather H Nelson
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota. Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota.
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28
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Díaz-Peña R, Vidal-Castiñeira JR, Moro-García MA, Alonso-Arias R, Castro-Santos P. Significant association of the KIR2DL3/HLA-C1 genotype with susceptibility to Crohn's disease. Hum Immunol 2015; 77:104-109. [PMID: 26542067 DOI: 10.1016/j.humimm.2015.10.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 09/24/2015] [Accepted: 10/31/2015] [Indexed: 10/22/2022]
Abstract
We aimed to analyze the possible association of KIR/HLA-C genotypes with the susceptibility to Crohn's disease (CD) in a Spanish population. A total of 125 patients with CD and 339 healthy controls were selected for this study. KIR and HLA-C typing were developed by sequence-specific oligonucleotide probing. We found that the centromeric A/A genotype and HLA-C1 combination was significantly increased in CD patients (P<10(-3)). The KIR2DL3/2DL3 genotype was significantly increased in CD patients (P<0.0005). Moreover, we also observed a highly significant increase of KIR2DL3-HLA-C1 homozygosis in CD patients (P<0.0005). Our results confirm the relevance of the KIR2DL2/KIR2DL3 genes and their interaction with HLA-C to CD. We show that the contribution of the KIR genes to CD susceptibility extends beyond the association with individual KIRs, with an imbalance between activating and inhibitory KIR genes seeming to influence the susceptibility to CD.
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Affiliation(s)
- Roberto Díaz-Peña
- Department of Immunology, Hospital Universitario Central de Asturias, Oviedo, Spain; Faculty of Health Sciences, Universidad Autónoma de Chile, Talca, Chile
| | | | | | - Rebeca Alonso-Arias
- Department of Immunology, Hospital Universitario Central de Asturias, Oviedo, Spain
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29
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Genetic associations of killer immunoglobulin like receptors and class I human leukocyte antigens on childhood acute lymphoblastic leukemia among north Indians. Hum Immunol 2015; 77:41-46. [PMID: 26472014 DOI: 10.1016/j.humimm.2015.10.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 10/06/2015] [Accepted: 10/11/2015] [Indexed: 11/23/2022]
Abstract
BACKGROUND Molecular interactions between KIRs and their cognate HLA class-I ligands, play a central role in the regulation of natural killer (NK) cell responses in malignancies. We aimed to determine the role of KIR genes and their HLA ligands in genetic predisposition of childhood acute lymphoblastic leukemia (ALL). METHODS Genotyping of 16 KIR genes, along with HLA class-I groups C1/C2 and Bw4 super-type ligands, was carried-out in 137 childhood ALL cases and 274 healthy controls. RESULTS We observed an increased incidence of activating KIRs namely; 2DS2 (OR=2.23, p=<0.001), 2DS3 (OR=1.74, p=0.011), 3DS1 (OR=2.22, p=<0.001), 2DS5 (OR=2.10, p=0.001), 2DS1 (OR=4.42, p=<0.001) and 2DS4 (OR=2.88, p=<0.001) genes in childhood ALL cases compared to controls. Frequency of BB genotype that possess 2-6 activating KIR genes was predominant in cases compared to controls (OR=2.55, p=<0.001). KIR-receptor/HLA-ligand combinations analysis revealed a moderate risk of almost 2-fold for activating KIR-ligand combinations namely; KIR2DS1-HLAC2, KIR2DS2-HLAC1 and KIR3DS1-HLABw4 in childhood ALL cases. CONCLUSION Our data suggests the role for KIR genes and their HLA ligands in aetiology of childhood ALL.
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30
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Zhen J, He L, Xu Y, Zhao J, Yu Q, Zou H, Sun G, Deng Z. Allelic polymorphism of KIR2DL2/2DL3 in a southern Chinese population. ACTA ACUST UNITED AC 2015; 86:362-7. [PMID: 26423800 DOI: 10.1111/tan.12681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 09/09/2015] [Accepted: 09/10/2015] [Indexed: 11/30/2022]
Abstract
KIR2DL2 and KIR2DL3 segregate as alleles of the same killer cell immunoglobulin-like receptor (KIR) gene locus. They have been associated with viral infectious diseases and certain cancers and their allelic information may help to better comprehend mechanisms. The allelic polymorphism of KIR2DL2/2DL3 has been shown to influence their binding specificity and affinity to the HLA-C1 ligands. The present study aims to investigate the distribution of the allelic polymorphism of KIR2DL2/2DL3 in a southern Chinese population using sequence-specific primer polymerase chain reaction (PCR-SSP) and PCR-sequence-based typing (SBT) at the entire coding sequence. Of the 306 tested individuals, 1.96% were positive for KIR2DL2 only, 78.10% for KIR2DL3 only, and 19.93% for both KIR2DL2 and 2DL3. KIR2DL3 showed a high degree of diversity in the study population with 15 alleles detected including 8 novel ones. The predominant 2DL3 allele in the study population is 2DL3*00101 (92.81%) followed by 2DL3*00201 (24.18%), 2DL3*023 (4.25%), and 2DL3*00109 (1.31%). The remaining 11 2DL3 alleles all had a frequency below 1%. Three detected 2DL2 alleles were 2DL2*00301 (18.95%), 2DL2*00101 (3.59%), and the novel 2DL2*013 (0.33%). These results provide further insight into the KIR gene diversity in Southern Chinese and may help to better understand the role played by KIR genes in associated diseases.
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Affiliation(s)
- J Zhen
- Immunogenetics Laboratory, Shenzhen Blood Center, Shenzhen, China
| | - L He
- Immunogenetics Laboratory, Shenzhen Blood Center, Shenzhen, China
| | - Y Xu
- Immunogenetics Laboratory, Shenzhen Blood Center, Shenzhen, China
| | - J Zhao
- Shenzhen Eye Hospital Affiliated to Jinan University, Shenzhen, China
| | - Q Yu
- Immunogenetics Laboratory, Shenzhen Blood Center, Shenzhen, China
| | - H Zou
- Immunogenetics Laboratory, Shenzhen Blood Center, Shenzhen, China
| | - G Sun
- Immunogenetics Laboratory, Shenzhen Blood Center, Shenzhen, China
| | - Z Deng
- Immunogenetics Laboratory, Shenzhen Blood Center, Shenzhen, China
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Ayo CM, Reis PG, Dalalio MMDO, Visentainer JEL, Oliveira CDF, de Araújo SM, de Oliveira Marques DS, Sell AM. Killer Cell Immunoglobulin-like Receptors and Their HLA Ligands are Related with the Immunopathology of Chagas Disease. PLoS Negl Trop Dis 2015; 9:e0003753. [PMID: 25978047 PMCID: PMC4433128 DOI: 10.1371/journal.pntd.0003753] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 04/11/2015] [Indexed: 02/03/2023] Open
Abstract
The aim of this study was to investigate the influence of killer cell immunoglobulin-like receptor (KIR) genes and their human leucocyte antigen (HLA) ligands in the susceptibility of chronic Chagas disease. This case-control study enrolled 131 serologically-diagnosed Chagas disease patients (59 men and 72 women, mean age of 60.4 ± 9.8 years) treated at the University Hospital of Londrina and the Chagas Disease Laboratory of the State University of Maringa. A control group was formed of 165 healthy individuals - spouses of patients or blood donors from the Regional Blood Bank in Maringa (84 men and 81 women, with a mean age of 59.0 ± 11.4 years). Genotyping of HLA and KIR was performed by PCR-SSOP. KIR2DS2-C1 in the absence of KIR2DL2 (KIR2DS2+/2DL2-/C1+) was more frequent in Chagas patients (P = 0.020; Pc = 0.040; OR = 2.14) and, in particular, those who manifested chronic chagasic cardiopathy—CCC (P = 0.0002; Pc = 0.0004; OR = 6.64; 95% CI = 2.30–18.60) when compared to the control group, and when CCC group was compared to the patients without heart involvement (P = 0.010; Pc = 0.020; OR = 3.97). The combination pair KIR2DS2+/2DL2-/KIR2DL3+/C1+ was also positively associated with chronic chagasic cardiopathy. KIR2DL2 and KIR2DS2 were related to immunopathogenesis in Chagas disease. The combination of KIR2DS2 activating receptor with C1 ligand, in the absence of KIR2DL2, may be related to a risk factor in the chronic Chagas disease and chronic chagasic cardiopathy. Chagas disease is an infection caused by the haemoflagellate protozoan Trypanosoma cruzi. It is one of the most important public health problems in Latin America, and was first described by Carlos Justiniano Ribeiro das Chagas, a Brazilian physician and scientist, in 1909. It is mostly vector-borne transmitted to humans by contact with faeces of triatomine bugs. The World Health Organization estimates that about 6 to 7 million people are currently infected with T. cruzi worldwide. The disease is characterised by acute and chronic phases. The immune response during disease development is crucial for protection because immunological imbalances can lead to heart and digestive tract lesions in chagasic patients. In this work we analysed the role of receptors of immune cells known as Natural Killer cells (killer cell immunoglobulin-like receptor—KIR) and their ligands (Human leukocyte antigens—HLA) in chagasic patients compared to healthy individuals. The uncontrolled activation of NK cells can lead to tissue damage, which, in turn, leads to the development of serious chronic illness. We found that KIR-HLA complex may be related to a risk factor in the chronic Chagas disease and chronic chagasic cardiopathy.
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Affiliation(s)
- Christiane Maria Ayo
- Post Graduation Program of Biosciences Applied to Pharmacy, Department of Analysis Clinical and Biomedicine, Maringa State University, Maringa, Parana, Brazil
| | - Pâmela Guimarães Reis
- Post Graduation Program of Biosciences Applied to Pharmacy, Department of Analysis Clinical and Biomedicine, Maringa State University, Maringa, Parana, Brazil
| | | | | | - Camila de Freitas Oliveira
- Post Graduation Program of Biosciences Applied to Pharmacy, Department of Analysis Clinical and Biomedicine, Maringa State University, Maringa, Parana, Brazil
| | | | | | - Ana Maria Sell
- Basic Health Sciences, Maringa State University, Maringa, Parana, Brazil
- * E-mail: ,
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He Y, Tao S, Ying Y, He J, Zhu F, Lv H. Investigation of killer cell immunoglobulin-like receptors KIR2DL2 and KIR2DL3 diversity and identification of ten novel KIR2DL3 alleles in the Chinese Han population. Scand J Immunol 2015; 81:265-71. [PMID: 25651940 DOI: 10.1111/sji.12277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 01/22/2015] [Indexed: 11/30/2022]
Abstract
KIR2DL2 and KIR2DL3 are important inhibitory receptors that recognize a subset of HLA-C allelic products carrying Ser77 and Asn80. In this study, we have determined KIR2DL2 and KIR2DL3 diversity in the Chinese Han population by a PCR sequence-based typing. Based on sequencing, the coding regions of 166 Chinese Han individuals, seven new polymorphic sites (238G>A, 405G>A, 476A>G, 550G>A, 608G>A, 789T>C, 947T>C) were found. KIR2DL2*00301, *00101, KIR2DL3*00101,*00201,*013, *015 and ten new KIR2DL3 variants (KIR2DL3*00105, 00106, 00107, 00108, 019, 020, 021, 022, 023 and 024) were identified, of which KIR2DL3*00101 was the most frequent allele. Compared with the sequences of KIR2DL3*00101, all sequences of 2DL3*00105, 2DL3*00106, 2DL3*00107 and 2DL3*00108 had one nucleotide substitution(789T>C, 261C>T, 489G>A and 405G>A),but none resulted in amino acid change. An A>G substitution was observed in nucleotide position 476 in 2DL3*019, 608 G>A in 2DL3*020, 824T>C in 2DL3*021 and 238 G>A in 2DL3*023. In addition, 2DL3*022 probably arose from 2DL3*00201 with a nucleotide substitution G>A at 550. There were more HLA-C1 positive individuals than HLA-C2. In conclusion, the data of allelic polymorphism for KIR2DL2 and KIR2DL3 were obtained in the Chinese Han population and ten novel KIR2DL3 alleles were identified.
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Affiliation(s)
- Y He
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China ; Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China
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Van Acker A, Filtjens J, Van Welden S, Taveirne S, Van Ammel E, Vanhees M, Devisscher L, Kerre T, Taghon T, Vandekerckhove B, Plum J, Leclercq G. Ly49E expression on CD8αα-expressing intestinal intraepithelial lymphocytes plays no detectable role in the development and progression of experimentally induced inflammatory bowel diseases. PLoS One 2014; 9:e110015. [PMID: 25310588 PMCID: PMC4195694 DOI: 10.1371/journal.pone.0110015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 09/06/2014] [Indexed: 12/14/2022] Open
Abstract
The Ly49E NK receptor is a unique inhibitory receptor, presenting with a high degree of conservation among mouse strains and expression on both NK cells and intraepithelial-localised T cells. Amongst intraepithelial-localised T cells, the Ly49E receptor is abundantly expressed on CD8αα-expressing innate-like intestinal intraepithelial lymphocytes (iIELs), which contribute to front-line defense at the mucosal barrier. Inflammatory bowel diseases (IBDs), encompassing Crohn's disease and ulcerative colitis, have previously been suggested to have an autoreactive origin and to evolve from a dysbalance between regulatory and effector functions in the intestinal immune system. Here, we made use of Ly49E-deficient mice to characterize the role of Ly49E receptor expression on CD8αα-expressing iIELs in the development and progression of IBD. For this purpose we used the dextran sodium sulphate (DSS)- and trinitrobenzenesulfonic-acid (TNBS)-induced colitis models, and the TNFΔARE ileitis model. We show that Ly49E is expressed on a high proportion of CD8αα-positive iIELs, with higher expression in the colon as compared to the small intestine. However, Ly49E expression on small intestinal and colonic iIELs does not influence the development or progression of inflammatory bowel diseases.
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Affiliation(s)
- Aline Van Acker
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Jessica Filtjens
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | | | - Sylvie Taveirne
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Els Van Ammel
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Mandy Vanhees
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | | | - Tessa Kerre
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Tom Taghon
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Bart Vandekerckhove
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Jean Plum
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
- * E-mail:
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Lin L, Ma C, Wei B, Aziz N, Rajalingam R, Yusung S, Erlich HA, Trachtenberg EA, Targan SR, McGovern DPB, Heath JR, Braun J. Human NK cells licensed by killer Ig receptor genes have an altered cytokine program that modifies CD4+ T cell function. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2014; 193:940-9. [PMID: 24935928 PMCID: PMC4096688 DOI: 10.4049/jimmunol.1400093] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
NK cells are innate immune cells known for their cytolytic activities toward tumors and infections. They are capable of expressing diverse killer Ig-like receptors (KIRs), and KIRs are implicated in susceptibility to Crohn's disease (CD), a chronic intestinal inflammatory disease. However, the cellular mechanism of this genetic contribution is unknown. In this study, we show that the "licensing" of NK cells, determined by the presence of KIR2DL3 and homozygous HLA-C1 in host genome, results in their cytokine reprogramming, which permits them to promote CD4(+) T cell activation and Th17 differentiation ex vivo. Microfluidic analysis of thousands of NK single cells and bulk secretions established that licensed NK cells are more polarized to proinflammatory cytokine production than unlicensed NK cells, including production of IFN-γ, TNF-α, CCL-5, and MIP-1β. Cytokines produced by licensed NK augmented CD4(+) T cell proliferation and IL-17A/IL-22 production. Ab blocking indicated a primary role for IFN-γ, TNF-α, and IL-6 in the augmented T cell-proliferative response. In conclusion, NK licensing mediated by KIR2DL2/3 and HLA-C1 elicits a novel NK cytokine program that activates and induces proinflammatory CD4(+) T cells, thereby providing a potential biologic mechanism for KIR-associated susceptibility to CD and other chronic inflammatory diseases.
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Affiliation(s)
- Lin Lin
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Chao Ma
- Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA 91125
| | - Bo Wei
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Najib Aziz
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Raja Rajalingam
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Susy Yusung
- Mattel Children's Hospital, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Henry A Erlich
- Children's Hospital Oakland Research Institute, Oakland, CA 94609
| | | | - Stephan R Targan
- Translational Genomics Group, F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Los Angeles, CA 90048
| | - Dermot P B McGovern
- Translational Genomics Group, F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Los Angeles, CA 90048; Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - James R Heath
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095; NanoSystems Biology Cancer Center, California Institute of Technology, Pasadena, CA 91125; and Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125
| | - Jonathan Braun
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095;
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Boudreau JE, Le Luduec JB, Hsu KC. Development of a novel multiplex PCR assay to detect functional subtypes of KIR3DL1 alleles. PLoS One 2014; 9:e99543. [PMID: 24919192 PMCID: PMC4053526 DOI: 10.1371/journal.pone.0099543] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 05/16/2014] [Indexed: 11/18/2022] Open
Abstract
Among NK cell receptor-ligand partnerships, KIR3DL1 and HLA-Bw4 demonstrate the greatest diversity; permutations of their allelic combinations titrate NK reactivity. Balancing selection has maintained distinct subtypes of KIR3DL1 alleles in global populations, implying that each may provide unique fitness advantages and variably influence disease processes. Though approaches exist for determining HLA-B allotypes, practical methods for identifying KIR3DL1 alleles are lacking. We have developed a PCR-based approach that identifies functional subtypes of KIR3DL1 alleles; it is suitable for research and may have clinical application. Six allele subsets were identified based on expression characteristics of the eleven most common KIR3DL1 alleles represented in reported populations. The remaining 62 low-frequency alleles were distributed into these groups based on sequence homology to coding regions. Subtype-specific SNPs were found in exons 3, 4, and 7, and used as priming sites for five multiplex PCR reactions. Genomic DNA derived from 175 unrelated donors and 52 related individuals from 6 families demonstrated >99.5% concordance between sequence-based typing and our novel approach. Finally, PCR-based typing accurately predicted NK phenotypes obtained by flow cytometry after staining with DX9 and Z27 monoclonal antibodies. This novel approach facilitates high-throughput analysis of KIR3DL1 allotypes to enable a broader understanding of KIR3DL1 and HLA-Bw4 interaction in health and disease.
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Affiliation(s)
- Jeanette E. Boudreau
- Immunology Program, Sloan-Kettering Institute for Cancer Research, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America
| | - Jean-Benoît Le Luduec
- Immunology Program, Sloan-Kettering Institute for Cancer Research, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America
| | - Katharine C. Hsu
- Immunology Program, Sloan-Kettering Institute for Cancer Research, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America
- Weill Medical College, Cornell University, New York, New York, United States of America
- * E-mail:
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36
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Association of killer cell immunoglobulin-like receptor gene 2DL1 and its HLA-C2 ligand with family history of cancer in oral squamous cell carcinoma. Immunogenetics 2014; 66:439-48. [DOI: 10.1007/s00251-014-0778-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 04/29/2014] [Indexed: 10/25/2022]
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Cooley S, Weisdorf DJ, Guethlein LA, Klein JP, Wang T, Marsh SGE, Spellman S, Haagenson MD, Saeturn K, Ladner M, Trachtenberg E, Parham P, Miller JS. Donor killer cell Ig-like receptor B haplotypes, recipient HLA-C1, and HLA-C mismatch enhance the clinical benefit of unrelated transplantation for acute myelogenous leukemia. THE JOURNAL OF IMMUNOLOGY 2014; 192:4592-600. [PMID: 24748496 DOI: 10.4049/jimmunol.1302517] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Killer cell Ig-like receptors (KIRs) interact with HLA class I ligands to regulate NK cell development and function. These interactions affect the outcome of unrelated donor hematopoietic cell transplantation (HCT). We have shown previously that donors with KIR B versus KIR A haplotypes improve the clinical outcome for patients with acute myelogenous leukemia by reducing the incidence of leukemic relapse and improving leukemia-free survival (LFS). Both centromeric and telomeric KIR B genes contribute to the effect, but the centromeric genes are dominant. They include the genes encoding inhibitory KIRs that are specific for the C1 and C2 epitopes of HLA-C. We used an expanded cohort of 1532 T cell-replete transplants to examine the interaction between donor KIR B genes and recipient class I HLA KIR ligands. The relapse protection associated with donor KIR B is enhanced in recipients who have one or two C1-bearing HLA-C allotypes, compared with C2 homozygous recipients, with no effect due to donor HLA. The protective interaction between donors with two or more, versus none or one, KIR B motifs and recipient C1 was specific to transplants with class I mismatch at HLA-C (RR of leukemia-free survival, 0.57 [0.40-0.79]; p = 0.001) irrespective of the KIR ligand mismatch status of the transplant. The survival advantage and relapse protection in C1/x recipients compared with C2/C2 recipients was similar irrespective of the particular donor KIR B genes. Understanding the interactions between donor KIR and recipient HLA class I can be used to inform donor selection to improve outcome of unrelated donor hematopoietic cell transplantation for acute myelogenous leukemia.
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Affiliation(s)
- Sarah Cooley
- Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, MN 55455
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Roberts CH, Molina S, Makalo P, Joof H, Harding-Esch EM, Burr SE, Mabey DCW, Bailey RL, Burton MJ, Holland MJ. Conjunctival scarring in trachoma is associated with the HLA-C ligand of KIR and is exacerbated by heterozygosity at KIR2DL2/KIR2DL3. PLoS Negl Trop Dis 2014; 8:e2744. [PMID: 24651768 PMCID: PMC3961204 DOI: 10.1371/journal.pntd.0002744] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 01/30/2014] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Chlamydia trachomatis is globally the predominant infectious cause of blindness and one of the most common bacterial causes of sexually transmitted infection. Infections of the conjunctiva cause the blinding disease trachoma, an immuno-pathological disease that is characterised by chronic conjunctival inflammation and fibrosis. The polymorphic Killer-cell Immunoglobulin-like Receptors (KIR) are found on Natural Killer cells and have co-evolved with the Human Leucocyte Antigen (HLA) class I system. Certain genetic constellations of KIR and HLA class I polymorphisms are associated with a number of diseases in which modulation of the innate responses to viral and intracellular bacterial pathogens is central. METHODOLOGY A sample of 134 Gambian pedigrees selected to contain at least one individual with conjunctival scarring in the F1 generation was used. Individuals (n = 830) were genotyped for HLA class I and KIR gene families. Family Based Association Tests and Case Pseudo-control tests were used to extend tests for transmission disequilibrium to take full advantage of the family design, genetic model and phenotype. PRINCIPLE FINDINGS We found that the odds of trachomatous scarring increased with the number of genome copies of HLA-C2 (C1/C2 OR = 2.29 BHP-value = 0.006; C2/C2 OR = 3.97 BHP-value = 0.0004) and further increased when both KIR2DL2 and KIR2DL3 (C2/C2 OR = 5.95 BHP-value = 0.006) were present. CONCLUSIONS To explain the observations in the context of chlamydial infection and trachoma we propose a two-stage model of response and disease that balances the cytolytic response of KIR expressing NK cells with the ability to secrete interferon gamma, a combination that may cause pathology. The data presented indicate that HLA-C genotypes are important determinants of conjunctival scarring in trachoma and that KIR2DL2/KIR2DL3 heterozygosity further increases risk of conjunctival scarring in individuals carrying HLA-C2.
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Affiliation(s)
- Chrissy h. Roberts
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sandra Molina
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Pateh Makalo
- Medical Research Council Unit, The Gambia, Atlantic Boulevard, Fajara, The Gambia
| | - Hassan Joof
- Medical Research Council Unit, The Gambia, Atlantic Boulevard, Fajara, The Gambia
| | - Emma M. Harding-Esch
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sarah E. Burr
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Medical Research Council Unit, The Gambia, Atlantic Boulevard, Fajara, The Gambia
| | - David C. W. Mabey
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Robin L. Bailey
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Matthew J. Burton
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Martin J. Holland
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Medical Research Council Unit, The Gambia, Atlantic Boulevard, Fajara, The Gambia
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The role of KIR genes and their cognate HLA class I ligands in childhood acute lymphoblastic leukemia. Blood 2014; 123:2497-503. [PMID: 24518758 DOI: 10.1182/blood-2013-11-540625] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Killer cell immunoglobulin-like receptors (KIRs), via interaction with their cognate HLA class I ligands, play a crucial role in the development and activity of natural killer cells. Following recent reports of KIR gene associations in childhood acute lymphoblastic leukemia (ALL), we present a more in-depth investigation of KIR genes and their cognate HLA ligands on childhood ALL risk. Genotyping of 16 KIR genes, along with HLA class I groups C1/C2 and Bw4 supertype ligands, was carried out in 212 childhood ALL cases and 231 healthy controls. Frequencies of KIR genes, KIR haplotypes, and combinations of KIR-HLA ligands were tested for disease association using logistic regression analyses. KIR A/A genotype frequency was significantly increased in cases (33.5%) compared with controls (24.2%) (odds ratio [OR] = 1.57; 95% confidence interval [CI], 1.04-2.39). Stratifying analysis by ethnicity, a significant difference in KIR genotype frequency was demonstrated in Hispanic cases (34.2%) compared with controls (21.9%) (OR = 1.86; 95% CI, 1.05-3.31). Homozygosity for the HLA-Bw4 allele was strongly associated with increased ALL risk exclusively in non-Hispanic white children (OR = 3.93; 95% CI, 1.44-12.64). Our findings suggest a role for KIR genes and their HLA ligands in childhood ALL etiology that may vary among ethnic groups.
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40
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Killer immunoglobulin-like receptor and their HLA ligands in Guillain–Barré Syndrome. J Neuroimmunol 2014; 267:92-6. [DOI: 10.1016/j.jneuroim.2013.12.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 11/01/2013] [Accepted: 12/04/2013] [Indexed: 01/23/2023]
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41
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Martín-Antonio B, Granell M, Urbano-Ispizua Á. Genomic polymorphisms of the innate immune system and allogeneic stem cell transplantation. Expert Rev Hematol 2014; 3:411-27. [DOI: 10.1586/ehm.10.40] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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42
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Hall LJ, Murphy CT, Quinlan A, Hurley G, Shanahan F, Nally K, Melgar S. Natural killer cells protect mice from DSS-induced colitis by regulating neutrophil function via the NKG2A receptor. Mucosal Immunol 2013; 6:1016-26. [PMID: 23340823 DOI: 10.1038/mi.2012.140] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 12/14/2012] [Indexed: 02/04/2023]
Abstract
Natural killer (NK) cells are traditionally considered in the context of tumor surveillance and infection defense but their role in chronic inflammatory disorders such as inflammatory bowel disease is less clear. Here, we investigated the role of NK cells in dextran sodium sulfate (DSS)-induced colitis in mice. Depletion of NK cells impairs the survival of mice with colitis and is linked with dramatic increases in colonic damage, leukocyte infiltration, and pro-inflammatory profiles. Mice depleted of NK cells had increased numbers of neutrophils in colons and mesenteric lymph nodes, compared with control mice, in addition to acquiring a hyper-activation status. In vitro and in vivo studies demonstrate that NK cells downregulate pro-inflammatory functions of activated neutrophils, including reactive oxygen species and cytokine production, by direct cell-to-cell contact involving the NK cell-inhibitory receptor NKG2A. Our results indicate an immunoregulatory mechanism of action of NK cells attenuating DSS-induced colitis neutrophil-mediated inflammation and tissue injury via NKG2A-dependent mechanisms.
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Affiliation(s)
- L J Hall
- Alimentary Pharmabiotic Centre, University College Cork, National University of Ireland, Cork, Ireland.
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43
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Moesta AK, Parham P. Diverse functionality among human NK cell receptors for the C1 epitope of HLA-C: KIR2DS2, KIR2DL2, and KIR2DL3. Front Immunol 2012. [PMID: 23189078 PMCID: PMC3504360 DOI: 10.3389/fimmu.2012.00336] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Interactions between killer immunoglobulin-like receptors (KIRs) and their HLA-A, -B, and -C ligands diversify the functions of human natural killer cells. Consequently, combinations of KIR and HLA genotypes affect resistance to infection and autoimmunity, success of reproduction and outcome of hematopoietic cell transplantation. HLA-C, with its C1 and C2 epitopes, evolved in hominids to be specialized KIR ligands. The system’s foundation was the C1 epitope, with C2 a later addition, by several million years. The human inhibitory receptor for C1 is encoded by KIR2DL2/3, a gene having two divergent allelic lineages: KIR2DL2 is a B KIR haplotype component and KIR2DL3 an A KIR haplotype component. Although KIR2DL2 and KIR2DL3 exhibit quantitative differences in specificity and avidity for HLA-C, they qualitatively differ in their genetics, functional effect, and clinical influence. This is due to linkage disequilibrium between KIR2DL2 and KIR2DS2, a closely related activating receptor that was selected for lost recognition of HLA-C.
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Affiliation(s)
- Achim K Moesta
- Genome Analysis Unit, Discovery Research, Amgen Inc., South San Francisco , CA, USA
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44
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Hollenbach JA, Nocedal I, Ladner MB, Single RM, Trachtenberg EA. Killer cell immunoglobulin-like receptor (KIR) gene content variation in the HGDP-CEPH populations. Immunogenetics 2012; 64:719-37. [PMID: 22752190 PMCID: PMC3438391 DOI: 10.1007/s00251-012-0629-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Accepted: 06/06/2012] [Indexed: 11/27/2022]
Abstract
In the present study, we investigate patterns of variation in the KIR cluster in a large and well-characterized sample of worldwide human populations in the Human Genome Diversity Project—Centre d'Etude du Polymorphisme Humain (HGDP-CEPH) panel in order to better understand the patterns of diversity in the region. Comparison of KIR data with that from other genomic regions allows control for strictly demographic factors; over 500,000 additional genomic markers have been typed in this panel by other investigators and the data made publicly available. Presence/absence frequencies and haplotypic associations for the KIR region are analyzed in the 52 populations comprising the panel and in accordance with major world regions (Africa, Middle East, Central Asia, East Asia, Europe, Americas, and Oceania). These data represent the first overview of KIR population genetics in the well-documented HGDP-CEPH panel and suggest different evolutionary histories and recent selection in the KIR gene cluster.
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Affiliation(s)
- Jill A. Hollenbach
- Center for Genetics, Children’s Hospital Oakland Research Institute, Oakland, CA 94609 USA
| | - Isobel Nocedal
- Center for Genetics, Children’s Hospital Oakland Research Institute, Oakland, CA 94609 USA
| | - Martha B. Ladner
- Center for Genetics, Children’s Hospital Oakland Research Institute, Oakland, CA 94609 USA
| | - Richard M. Single
- Department of Mathematics and Statistics, University of Vermont, Burlington, VT 05405 USA
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Abstract
Disease association studies involving highly polymorphic immunogenetic data may involve analyses at one or many units of analysis, including amino acid, allele, genotype and haplotype levels, as well as consideration of gene-gene or gene-environment interactions. The selection of the appropriate statistical tests is critical and will be dependent on the nature of the dataset (e.g., case-control vs. family data) as well as the specific research hypotheses being tested. This paper describes the various study and analysis categories used for such analyses, including the advantages and limitations of such techniques.
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Lin L, Braun J. Another earth: innate lymphoid cells and intestinal inflammation. Gastroenterology 2011; 141:1542-4. [PMID: 21959073 PMCID: PMC3804123 DOI: 10.1053/j.gastro.2011.09.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Affiliation(s)
- Lin Lin
- Department of Pathology and Lab Medicine, The UCLA David Geffen School of, Medicine, Los Angeles, California, USA
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47
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Abstract
NK cell effector function is regulated by a range of activating and inhibitory receptors, and many of their known ligands are MHC class I molecules. Human NK receptors encoded by the Killer immunoglobulin-like receptor (KIR) gene family recognize polymorphic HLA-C as well as some HLA-A and HLA-B molecules. KIRs are expressed by uterine NK (uNK) cells, which are distinctive NK cells directly in contact with the invading fetal placental cells that transform the uterine arteries during the first trimester. Trophoblast cells express both maternal and paternal HLA-C allotypes and can therefore potentially interact with KIRs expressed by uNK. Therefore, allorecognition of paternal HLA-C by maternal KIR might influence trophoblast invasion and vascular remodeling, with subsequent effects on placental development and the outcome of pregnancy. We discuss here the studies relating to KIR/HLA-C interactions with an emphasis on how these function during pregnancy to regulate placentation.
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Affiliation(s)
- Olympe Chazara
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
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McGeough CM, Berrar D, Wright G, Mathews C, Gilmore P, Cunningham RT, Bjourson AJ. Killer immunoglobulin-like receptor and human leukocyte antigen-C genotypes in rheumatoid arthritis primary responders and non-responders to anti-TNF-α therapy. Rheumatol Int 2011; 32:1647-53. [PMID: 21373785 PMCID: PMC3364412 DOI: 10.1007/s00296-011-1838-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Accepted: 02/18/2011] [Indexed: 12/25/2022]
Abstract
The identification of patients who will respond to anti-tumor necrosis factor alpha (anti-TNF-α) therapy will improve the efficacy, safety, and economic impact of these agents. We investigated whether killer cell immunoglobulin-like receptor (KIR) genes are related to response to anti-TNF-α therapy in patients with rheumatoid arthritis (RA). Sixty-four RA patients and 100 healthy controls were genotyped for 16 KIR genes and human leukocyte antigen-C (HLA-C) group 1/2 using polymerase chain reaction sequence-specific oligonucleotide probes (PCR-SSOP). Each patient received anti-TNF-α therapy (adalimumab, etanercept, or infliximab), and clinical responses were evaluated after 3 months using the disease activity score in 28 joints (DAS28). We investigated the correlations between the carriership of KIR genes, HLA-C group 1/2 genes, and clinical data with response to therapy. Patients responding to therapy showed a significantly higher frequency of KIR2DS2/KIR2DL2 (67.7% R vs. 33.3% NR; P = 0.012). A positive clinical outcome was associated with an activating KIR-HLA genotype; KIR2DS2 (+) HLA-C group 1/2 homozygous. Inversely, non-response was associated with the relatively inhibitory KIR2DS2 (-) HLA-C group 1/2 heterozygous genotype. The KIR and HLA-C genotype of an RA patient may provide predictive information for response to anti-TNF-α therapy.
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Affiliation(s)
- Cathy M McGeough
- Biomedical Sciences Research Institute, University of Ulster at Coleraine, Cromore Road, Northern Ireland, UK.
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Jobim M, Chagastelles P, Salim PH, Portela P, Wilson TJ, Curti AG, Jobim MR, João DA, Nardi NB, Tschiedel B, Jobim LF, Roesler R, Schwartsmann G. Association of killer cell immunoglobulin-like receptors and human leukocyte antigen–C genotypes in South Brazilian with type 1 diabetes. Hum Immunol 2010; 71:799-803. [DOI: 10.1016/j.humimm.2010.05.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Revised: 02/19/2010] [Accepted: 05/12/2010] [Indexed: 01/04/2023]
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