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Tao S, Norman PJ, You X, Kichula KM, Dong L, Chen N, He Y, Chen C, Zhang W, Zhu F. High-resolution KIR and HLA genotyping in three Chinese ethnic minorities reveals distinct origins. HLA 2024; 103:e15482. [PMID: 38625090 PMCID: PMC11027949 DOI: 10.1111/tan.15482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 03/05/2024] [Accepted: 04/02/2024] [Indexed: 04/17/2024]
Abstract
Polymorphism of killer-cell immunoglobulin-like receptors (KIRs) and their HLA class I ligands impacts the effector activity of cytotoxic NK cell and T cell subsets. Therefore, understanding the extent and implications of KIR and HLA class I genetic polymorphism across various populations is important for immunological and medical research. In this study, we conducted a high-resolution investigation of KIR and HLA class I diversity in three distinct Chinese ethnic minority populations. We studied the She, Yugur, and Tajik, and compared them with the Zhejiang Han population (Zhe), which represents the majority Southern Han ethnicity. Our findings revealed that the Tajik population exhibited the most diverse KIR copy number, allele, and haplotype diversity among the four populations. This diversity aligns with their proposed ancestral origin, closely resembling that of Iranian populations, with a relatively higher presence of KIR-B genes, alleles, and haplotypes compared with the other Chinese populations. The Yugur population displayed KIR distributions similar to those of the Tibetans and Southeast Asians, whereas the She population resembled the Zhe and other East Asians, as confirmed by genetic distance analysis of KIR. Additionally, we identified 12.9% of individuals across the three minority populations as having KIR haplotypes characterized by specific gene block insertions or deletions. Genetic analysis based on HLA alleles yielded consistent results, even though there were extensive variations in HLA alleles. The observed variations in KIR interactions, such as higher numbers of 2DL1-C2 interactions in Tajik and Yugur populations and of 2DL3-C1 interactions in the She population, are likely shaped by demographic and evolutionary mechanisms specific to their local environments. Overall, our findings offer valuable insights into the distribution of KIR and HLA diversity among three distinct Chinese ethnic minority populations, which can inform future clinical and population studies.
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Affiliation(s)
- Sudan Tao
- Blood Center of Zhejiang Province, Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, Zhejiang, People’s Republic of China
| | - Paul J. Norman
- Division of Biomedical Informatics and Personalized Medicine, and Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Xuan You
- Blood Center of Zhejiang Province, Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, Zhejiang, People’s Republic of China
| | - Katherine M. Kichula
- Division of Biomedical Informatics and Personalized Medicine, and Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Lina Dong
- Blood Center of Zhejiang Province, Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, Zhejiang, People’s Republic of China
| | - Nanying Chen
- Blood Center of Zhejiang Province, Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, Zhejiang, People’s Republic of China
| | - Yizhen He
- Blood Center of Zhejiang Province, Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, Zhejiang, People’s Republic of China
| | - Chen Chen
- Blood Center of Zhejiang Province, Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, Zhejiang, People’s Republic of China
| | - Wei Zhang
- Blood Center of Zhejiang Province, Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, Zhejiang, People’s Republic of China
| | - Faming Zhu
- Blood Center of Zhejiang Province, Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, Zhejiang, People’s Republic of China
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Jalalvand M, Beigmohammadi F, Soltani S, Ehsan S, Rajabkhah S, Madreseh E, Akhtari M, Jamshidi A, Farhadi E, Mahmoudi M, Nafissi S. The investigation of killer-cell immunoglobulin-like receptors (KIRs) and their HLA ligands in Iranian patients with myasthenia gravis. Clin Neurol Neurosurg 2024; 238:108171. [PMID: 38422742 DOI: 10.1016/j.clineuro.2024.108171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/31/2024] [Accepted: 02/08/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Myasthenia gravis (MG) is a disabling disease with the underlying pathophysiology of auto-antibodies attacking the postsynaptic acetylcholine receptors of neuromuscular junctions causing muscle weakness. Natural killer (NK) cells are innate immune cells that play an important regulative role in immune responses. The human killer-cell immunoglobulin-like receptors (KIRs) family is one of the receptors on NK cells that can either activate or inhibit NK cells. This study aimed to assess the possible role of KIR and their human leukocyte antigen (HLA) ligand genes susceptibility to MG in Iranian patients. METHOD One hundred and sixty-three patients with MG diagnosis based on the presence of clinical symptoms and laboratory tests and 400 healthy volunteers were studied. We used the polymerase chain reaction (PCR) technique for genotyping 15 KIRs and 5 HLA genes. RESULTS The results demonstrated that there was no significant difference in the frequency of KIR genes and inhibitory KIR genotypes between controls and patients. In MG patients, HLA-C1Asn80 was significantly less frequent than in matched controls. The frequency of HLA genotype number 7 was significantly lower in MG cases, compared to the controls. Analysis of activating KIR genotypes showed that genotype number 10 was significantly less frequent in MG cases than in matched controls. CONCLUSION Our results suggest that the presence HLA-C1Asn80 might play a protective role against the pathogenesis of MG. The significantly decreased prevalence of one activating KIR genotype and one of the HLA genotypes in MG cases suggest that these genotypes can reduce the risk of MG development. To specifically reveal the impact of KIR and HLA in MG, more studies are required.
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Affiliation(s)
- Mobina Jalalvand
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Samaneh Soltani
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Soroush Ehsan
- Department of Neurology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahebeh Rajabkhah
- Department of Neurology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Madreseh
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Akhtari
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Farhadi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Chronic Inflammatory Diseases, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Chronic Inflammatory Diseases, Tehran University of Medical Sciences, Tehran, Iran.
| | - Shahriar Nafissi
- Department of Neurology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran; Neuromuscular Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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Farzamikia N, Hejazian SM, Haghi M, Hejazian SS, Zununi Vahed S, Ardalan M. Evaluation of telomeric KIR genes and their association with CMV infection in kidney transplant recipients. Immunogenetics 2022; 74:207-212. [DOI: 10.1007/s00251-021-01245-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022]
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4
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Rizzo S, Schiuma G, Beltrami S, Gentili V, Rizzo R, Bortolotti D. Role of KIR Receptor in NK Regulation during Viral Infections. Immuno 2021; 1:305-31. [DOI: 10.3390/immuno1030021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Natural Killer (NK) cells are key effectors of the innate immune system which represent the first line of defense against viral infections. NK cell activation depends on the engagement of a complex receptor repertoire expressed on their surface, consisting of both activating and inhibitory receptors. Among the known NK cell receptors, the family of killer Ig-like receptors (KIRs) consists in activating/inhibitory receptors that interact with specific human leukocyte antigen (HLA) molecules expressed on target cells. In particular, the expression of peculiar KIRs have been reported to be associated to viral infection susceptibility. Interestingly, a significant association between the development and onset of different human pathologies, such as tumors, neurodegeneration and infertility, and a clonal KIRs expression on NK cells has been described in presence of viral infections, supporting the crucial role of KIRs in defining the effect of viral infections in different tissues and organs. This review aims to report the state of art about the role of KIRs receptors in NK cell activation and viral infection control.
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Bolarín JM, Pérez-Cárceles M, Luna A, Minguela A, Muro M, Legaz I. Killer cell immunoglobulin-like receptors (KIR) genes can be an adequate tool in forensic anthropological studies: evaluation in a wide Caucasian Spanish population. AUST J FORENSIC SCI 2021. [DOI: 10.1080/00450618.2021.1930156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- J. M. Bolarín
- Department of Legal and Forensic Medicine, Biomedical Research Institute (IMIB), Regional Campus of International Excellence “Campus Mare Nostrum”, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - M.D. Pérez-Cárceles
- Department of Legal and Forensic Medicine, Biomedical Research Institute (IMIB), Regional Campus of International Excellence “Campus Mare Nostrum”, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - A. Luna
- Department of Legal and Forensic Medicine, Biomedical Research Institute (IMIB), Regional Campus of International Excellence “Campus Mare Nostrum”, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - A. Minguela
- Immunology Service, Instituto Murciano de investigación biosanitaria (IMIB) and Centro de Investigación Biomédica en Red de enfermedades hepáticas y digestivas (CIBERehd), Hospital Clínico Universitario Virgen de la Arrixaca (HCUVA), Murcia, Spain
| | - M. Muro
- Immunology Service, Instituto Murciano de investigación biosanitaria (IMIB) and Centro de Investigación Biomédica en Red de enfermedades hepáticas y digestivas (CIBERehd), Hospital Clínico Universitario Virgen de la Arrixaca (HCUVA), Murcia, Spain
| | - I. Legaz
- Department of Legal and Forensic Medicine, Biomedical Research Institute (IMIB), Regional Campus of International Excellence “Campus Mare Nostrum”, Faculty of Medicine, University of Murcia, Murcia, Spain
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Omraninava M, Mehranfar S, Khosrojerdi A, Jamalzehi S, Karami J, Motallebnezhad M, Javan MR, Aslani S, Mohammadi H, Kousha A. Systematic review and meta-analytic findings on the association between killer-cell immunoglobulin-like receptor genes and susceptibility to pulmonary tuberculosis. Pathog Glob Health 2020; 115:61-69. [PMID: 33258733 DOI: 10.1080/20477724.2020.1848271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Several studies have evaluated the association between killer-cell immunoglobulin-like receptors (KIR) genes and susceptibility risk to tuberculosis (TB) infection. Nonetheless, their outcomes have not been conclusive and consistent. Here we implemented a systematic review and meta-analysis of KIR genes association to susceptibility risk of pulmonary TB (PTB) infection to attain a clear understanding of the involvement of these genes in susceptibility to PTB infection. A systematic search was conducted in the MEDLINE/PubMed and Scopus databases to find case-control studies published before November 2020. Pooled odds ratio (OR) and 95% confidence interval (95% CI) were calculated to determine the association between KIR genes and risk of PTB infection. After comprehensive searching and implementing the inclusion and exclusion criteria, 10 case-control studies were included in the meta-analysis. Four KIR genes were found to have significant positive association with PTB susceptibility risk of infection, including 2DL3 (OR = 1.454, 95% CI = 1.157-1.827; P = 0.001), 2DS1 (OR = 1.481, 95% CI = 1.334-1.837; P < 0.001), 2DS4 (OR = 1.782, 95% CI = 1.273-2.495; P = 0.001) and 3DL1 (OR = 1.726, 95% CI = 1.277-2.333; P < 0.001). However, the results showed that the remaining KIR genes (2DS2-4, 2DL1, 2, 4, 3DL1-2) and two pseudogenes (2DP1 and 3DP1) did not have significant associations with risk of PTB infection. This meta-analysis provides reliable evidence that the KIR genes 2DL3, 2DS1, 2DS4, and 3DL1 may be associated with an increased risk of PTB infection.
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Affiliation(s)
- Melodi Omraninava
- Department of Infectious Disease, Faculty of Medical Sciences, Sari Branch, Islamic Azad University , Sari, Iran
| | - Sahar Mehranfar
- Department of Genetics and Immunology, Faculty of Medicine, Urmia University of Medical Sciences , Urmia, Iran.,Cellular and Molecular Research Center, Urmia University of Medical Sciences , Urmia, Iran
| | - Arezou Khosrojerdi
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University , Tehran, Iran
| | - Sirous Jamalzehi
- Department of Medical Laboratory Sciences, Iranshahr University of Medical Sciences , Iranshahr, Iran
| | - Jafar Karami
- Department of Immunology, School of Medicine, Iran University of Medical Sciences , Tehran, Iran
| | - Morteza Motallebnezhad
- Department of Immunology, School of Medicine, Iran University of Medical Sciences , Tehran, Iran
| | - Mohammad Reza Javan
- Department of Immunology, Faculty of Medicine, Zabol University of Medical Sciences , Zabol, Iran
| | - Saeed Aslani
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences , Tehran, Iran
| | - Hamed Mohammadi
- Department of Immunology, School of Medicine, Alborz University of Medical Sciences , Alborz, Iran
| | - Ahmad Kousha
- Department of Health Education and Health Promotion, Faculty of Health, Tabriz University of Medical Sciences , Tabriz, Iran
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Sakuraba A, Haider H, Sato T. Population Difference in Allele Frequency of HLA-C*05 and Its Correlation with COVID-19 Mortality. Viruses 2020; 12:E1333. [PMID: 33233780 PMCID: PMC7699862 DOI: 10.3390/v12111333] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/13/2020] [Accepted: 11/19/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND coronavirus disease 2019 (COVID-19) causes severe illness including cytokine storms, but mortality among countries differs largely. In the present study, we investigated the association between human leukocyte antigen (HLA) class I, which plays a major role in susceptibility to viral infections, and the mortality of COVID-19. METHODS data of allele frequencies of HLA-A, -B and -C and COVID-19 mortality were obtained for 74 countries from the Allele Frequency Net Database and worldometer.info. Association between allele frequency of each HLA and mortality was assessed by linear regression followed by multivariable regression. Subsequently, association of HLA-C*05 to its receptor KIR2DS4fl, expressed on natural killer (NK) cells, and differential mortality to historic pandemics were analyzed. RESULTS HLA-A*01, -B*07, -B*08, -B*44 and -C*05 were significantly associated with the risk of deaths (adjusted p = 0.040, 0.00081, 0.047, 0.0022, 0.00032, respectively), but only HLA-C*05 remained statistically significant (p = 0.000027) after multivariable regression. A 1% increase in the allele frequency of HLA-C*05 was associated with an increase of 44 deaths/million. Countries with different mortality could be categorized by the distribution of HLA-C*05 and its receptor KIR2DS4fl, which in combination cause NK cell-induced hyperactive immune response. Countries with similar ethnic and/or geographic background responded in a similar pattern to each pandemic. CONCLUSIONS we demonstrated that allele frequency of HLA-C*05 and the distribution pattern with its receptor KIR2DS4fl strongly correlated with COVID-19 mortality. Host genetic variance of innate immunity may contribute to the difference in mortality among various countries and further investigation using patient samples is warranted.
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Affiliation(s)
- Atsushi Sakuraba
- Section of Gastroenterology, Hepatology, and Nutrition, University of Chicago Medicine, Chicago, IL 60637, USA;
| | - Haider Haider
- Section of Gastroenterology, Hepatology, and Nutrition, University of Chicago Medicine, Chicago, IL 60637, USA;
| | - Toshiro Sato
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan;
- Corona Virus Task Force, Keio University School of Medicine, Tokyo 160-8582, Japan
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8
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Rashidi S, Farhadi L, Ghasemi F, Sheikhesmaeili F, Mohammadi A. The potential role of HLA-G in the pathogenesis of HBV infection: Immunosuppressive or immunoprotective? Infect Genet Evol 2020; 85:104580. [PMID: 33022425 DOI: 10.1016/j.meegid.2020.104580] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/20/2020] [Accepted: 10/01/2020] [Indexed: 02/07/2023]
Abstract
The non-classical human leukocyte antigens (HLA)-G could be generally considered as a potent tolerogenic molecule, which modulates immune responses. HLA-G due to the immunosuppressive properties may play an important role in the pathogenesis of infections related to the liver. HLA-G may display two distinct activities in the pathological conditions so that it could be protective in the autoimmune and inflammatory diseases or could be suppressive of the immune system in the infections or cancers. HLA-G might be used as a novel therapeutic target for liver diseases in the future. Indeed, new therapeutic agents targeting HLA-G expression or antibodies which block HLA-G activity are being developed and tested. However, further consideration of the HLA-G function in liver disease is required. This review aims to summarize the role of HLA-G in the liver of patients with HBV infection.
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Affiliation(s)
- Saadyeh Rashidi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Leila Farhadi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Faezeh Ghasemi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Farshad Sheikhesmaeili
- Liver and Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Asadollah Mohammadi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.
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9
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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10
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Wongfieng W, Nutalai R, Jumnainsong A, Leelayuwat C. Quantitative Multiplex Real-Time Reverse Transcriptase-Polymerase Chain Reaction with Fluorescent Probe Detection of Killer Immunoglobulin-Like Receptors, KIR2DL4/3DL3. Diagnostics (Basel) 2020; 10:E588. [PMID: 32823754 DOI: 10.3390/diagnostics10080588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/10/2020] [Accepted: 08/10/2020] [Indexed: 11/18/2022] Open
Abstract
(1) Background: KIR2DL4/KIR3DL3 are the framework genes present in all KIR haplotypes, with unique expression patterns being present only in women and CD56bright NK cells. KIR genes have a high degree of DNA sequence identity. Consequently, they are one of the most challenging genes for molecular detection—especially regarding expressions; (2) Methods: We developed an effective method to determine KIR3DL3/KIR2DL4 expressions based on a multiplex quantitative real-time Reverse transcription polymerase chain reaction (qRT-PCR )with fluorescent probes using NK92; (3) Results: Standardizations of the singleplex KIR2DL4 and KIR3DL3 were performed to evaluate the sensitivity and specificity for further development of the multiplex assay. The limit of detection was at 500 copies each. There was cross-amplification with the presence of related KIR genes at a level of 5 × 107 copies. This is not biologically significant because this high level of KIR expression has not been found in clinical samples. The multiplex assay was reproducible equivalent to its singleplex (KIR2DL4; R2 = 0.995, KIR3DL3; R2 = 0.996, but lower sensitivity of 103 copies). Furthermore, the validation of the developed method on samples of blood donors showed high sensitivity (100%) and specificity (99.9%); (4) Conclusions: The developed method is reliable and highly specific suitable for evaluation of the KIR2DL4/3DL3 mRNA expressions in further applications.
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Alicata C, Ashouri E, Nemat-Gorgani N, Guethlein LA, Marin WM, Tao S, Moretta L, Hollenbach JA, Trowsdale J, Traherne JA, Ghaderi A, Parham P, Norman PJ. KIR Variation in Iranians Combines High Haplotype and Allotype Diversity With an Abundance of Functional Inhibitory Receptors. Front Immunol 2020; 11:556. [PMID: 32300348 PMCID: PMC7142237 DOI: 10.3389/fimmu.2020.00556] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/11/2020] [Indexed: 01/03/2023] Open
Abstract
Natural killer (NK) cells are innate lymphocytes that eliminate infected and transformed cells. They discriminate healthy from diseased tissue through killer cell Ig-like receptor (KIR) recognition of HLA class I ligands. Directly impacting NK cell function, KIR polymorphism associates with infection control and multiple autoimmune and pregnancy syndromes. Here we analyze KIR diversity of 241 individuals from five groups of Iranians. These five populations represent Baloch, Kurd, and Lur, together comprising 15% of the ethnically diverse Iranian population. We identified 159 KIR alleles, including 11 not previously characterized. We also identified 170 centromeric and 94 telomeric haplotypes, and 15 different KIR haplotypes carrying either a deletion or duplication encompassing one or more complete KIR genes. As expected, comparing our data with those representing major worldwide populations revealed the greatest similarity between Iranians and Europeans. Despite this similarity we observed higher frequencies of KIR3DL1*001 in Iran than any other population, and the highest frequency of HLA-B*51, a Bw4-containing allotype that acts as a strong educator of KIR3DL1*001+ NK cells. Compared to Europeans, the Iranians we studied also have a reduced frequency of 3DL1*004, which encodes an allotype that is not expressed at the NK cell surface. Concurrent with the resulting high frequency of strong viable interactions between inhibitory KIR and polymorphic HLA class I, the majority of KIR-A haplotypes characterized do not express a functional activating receptor. By contrast, the most frequent KIR-B haplotype in Iran expresses only one functional inhibitory KIR and the maximum number of activating KIR. This first complete, high-resolution, characterization of the KIR locus of Iranians will form a valuable reference for future clinical and population studies.
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Affiliation(s)
- Claudia Alicata
- Department of Immunology, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Elham Ashouri
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, United States.,Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, United States.,Hematology-Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran.,School of Medicine, Shiraz Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Neda Nemat-Gorgani
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, United States.,Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, United States.,Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Lisbeth A Guethlein
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, United States.,Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, United States
| | - Wesley M Marin
- Department of Neurology, University of California, San Francisco, San Francisco, CA, United States
| | - Sudan Tao
- Blood Center of Zhejiang Province, Hangzhou, China.,Division of Personalized Medicine, Department of Immunology and Microbiology, University of Colorado, Anschutz Medical Campus, Aurora, CO, United States
| | - Lorenzo Moretta
- Department of Immunology, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Jill A Hollenbach
- Department of Neurology, University of California, San Francisco, San Francisco, CA, United States
| | - John Trowsdale
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - James A Traherne
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Abbas Ghaderi
- School of Medicine, Shiraz Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Peter Parham
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, United States.,Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, United States
| | - Paul J Norman
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, United States.,Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, United States.,Division of Personalized Medicine, Department of Immunology and Microbiology, University of Colorado, Anschutz Medical Campus, Aurora, CO, United States
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12
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Barani S, Taghipour M, Ghaderi A. Positive association of Bx genotype, KIR2L5, KIR2DS5 and full-length KIR2DS4 with the risk of meningioma. Immunobiology 2019; 225:151900. [PMID: 31899050 DOI: 10.1016/j.imbio.2019.151900] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/30/2019] [Accepted: 12/16/2019] [Indexed: 01/16/2023]
Abstract
BACKGROUND NK cells as a part of innate immune system, are controlled by a set of activating and inhibitory KIR receptors (aKIR, iKIR) which are implicated in tumor microenvironment immunity through a variety of activating and inhibitory immune signals. KIRs are multi gene family receptors that differ in the number and type of genes among individuals. In the current research we determined the KIRs genes and genotypes impact on predisposition to meningioma development in Iranians. METHODS Sequence-specific primers-polymerase chain reaction (SSP-PCR) was performed for genotyping of 16 KIRs in 159 meningioma cases and 362 age and sex matched healthy controls (CNs) at Shiraz Institute for Cancer Research. RESULTS Comparison of the KIR genotypes frequencies between cases and controls disclosed a highly significant increase in Bx genotype, CxTx subset and Cen AB and Tel AB in meningioma cases and a decrease in AA genotype, C4Tx subset and Cen AA, Tel AA, Tel BB in healthy controls. Among all 16 KIR genes, the carriers of KIR2DL5 and KIR2DS5 constituted a much greater proportion in meningioma than control group. Comparison of carrier frequencies of KIR2DS4 variants between case and controls revealed a higher frequency of KIR2DS4 full length (KIR2DS4fl) in meningioma cases and a lower frequency of KIR2DS4 deleted variant (KIR2DS4del) in controls. Furthermore, the simultaneous presence of 2DS5, 2DS4fl, CenAB, TelAB and absence of 2DS4del, CenAA, TelAA, TelBB, magnify the risk of developing meningioma substantially (OR ≈ 23). Altogether, 41 distinct KIR genotypes were characterized in 521 subjects. Among them, some individuals were characterized by seven peculiar genotypes that the linkage disequilibrium between KIR2DS2-KIR2DL2 and KIR2DL5-KIR2DS3-KIR2DS5 has not been detected. The carriers of certain genotypes with presence of as KIR2DL5 and absence of KIR2DS3, KIR2DS5 constituted a much higher proportion in meningioma than control group which increase the risk of meningioma up to 72 times. CONCLUSION This case- control study suggests carriers of Bx genotype, KIR2DL5, KIR2DS5, 2DS4fl, ≥ 4 iKIR, CxTx subset as well as Cen AB and Tel AB are associated with an increased risk of developing meningioma whereas carrying KIR2DS4del, AA, C4TX genotypes and Cen AA, Tel AA, Tel BB reduce the genetic predisposition for meningioma.
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Affiliation(s)
- Shaghik Barani
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mousa Taghipour
- Neurosurgery Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abbas Ghaderi
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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13
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Aghaei H, Mostafaei S, Aslani S, Jamshidi A, Mahmoudi M. Association study between KIR polymorphisms and rheumatoid arthritis disease: an updated meta-analysis. BMC Med Genet 2019; 20:24. [PMID: 30696403 PMCID: PMC6352331 DOI: 10.1186/s12881-019-0754-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 01/15/2019] [Indexed: 12/14/2022]
Abstract
Background Currently published studies investigating association between the killer cell immunoglobulin-like receptor (KIR) gene polymorphisms and rheumatoid arthritis (RA) reported inconsistent and contradictory results. Hence, we aim to carry out this comprehensive meta-analysis of all eligible studies meeting the inclusion criteria to achieve precise and comprehensive relationships between genetic variations in KIR gene cluster and risk of RA. Methods Databases of Medline/PubMed and Scopus were searched to investigate case-control studies prior to May 2018. The associations between KIR gene polymorphisms and RA susceptibility were analyzed by computing the odds ratio (OR) and 95% confidence interval (95% CI) for each study. Results A total of 11 comparative case-control studies involving 1847 RA patients and 2409 healthy individuals were included in this meta-analysis. Four significant associations of 2DL3 (OR = 0.591, 95% CI = 0.351–0.994; P = 0.047), 2DL5 (OR = 0.716, 95% CI = 0.601–0.853; P < 0.001), 2DS5 (OR = 0.623, 95% CI = 0.393–0.988; P = 0.045), and 3DL3 (OR = 0.324, 95% CI = 0.129–0.814; P = 0.016) genes with decreased RA risk were discovered in this meta-analysis. Although, other KIR receptors including 2DL1, 2DL2, 2DL4, 3DL1, 3DL2, 3DS1, 2DS1-2DS4, and two pseudo gens of 2DP1 and 3DP1 displayed no significant association with predisposition to RA. Conclusions These findings provide reliable evidence that 2DL3, 2DL5, 3DL3, and 2DS5 might have a potential protective role for RA.
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Affiliation(s)
- Hamideh Aghaei
- Rheumatology Research Center, Tehran University of Medical Sciences, PO Box: 1411713137, Tehran, Iran.,Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Shayan Mostafaei
- Department of Community Medicine, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Saeed Aslani
- Rheumatology Research Center, Tehran University of Medical Sciences, PO Box: 1411713137, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, PO Box: 1411713137, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, PO Box: 1411713137, Tehran, Iran.
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14
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Shah-Hosseini A, Jafari M, Mohammadi A, Sanaei R, Alavian SM, Doosti-Irani A, Nooradeh Keykavousi M, Tajik N. The impact of KIR-HLA genotype on hepatitis B virus clearance in Iranian infected individuals. Med Microbiol Immunol 2017; 206:463-470. [PMID: 29032460 DOI: 10.1007/s00430-017-0522-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 09/21/2017] [Indexed: 12/18/2022]
Abstract
Killer cell immunoglobulin like receptors (KIRs) have a principal role in regulating the effector functions of NK cells, particularly in viral infections. The major ligands for KIRs are human leukocyte antigen (HLA) class I molecules. The aim of this study is to investigate the possible association of KIR genes, their known HLA ligands and compound KIR-HLA genotypes with hepatitis B virus (HBV) infection. Our study group consisted of 202 Iranian HBV-infected patients (52 spontaneously recovered, 50 asymptomatic carriers, 50 chronic sufferers and 50with liver cirrhosis) and 100 ethnic-matched healthy control subjects. KIR and HLA genotyping was performed by a polymerase chain reaction-sequence-specific primer (PCR-SSP). The frequencies of the KIR2DL5A, KIR2DS1, and KIR3DS1 genes were significantly elevated in recovered individuals when compared with both control and patient groups. Also, KIR2DL5, and KIR3DP1 full were escalated in recovered individuals in comparison with patient groups. In addition, HLA-Bw4 ligand and HLA-A Bw4 were highly frequent in recovered individuals compared with healthy controls. Furthermore, the KIR3DS1 + HLA-Bw4, KIR3DS1 + HLA-Bw4 Iso80 , and KIR3DS1 + HLA-A Bw4 genotypes were significantly more common in recovered individuals than both healthy control and patient groups. Interestingly, AA genotype had less frequency and Bx had higher frequency in recovered individuals compared with both healthy control and patient groups. Our findings suggest a potential impact of the NK cells' activating phenotype that leads to the HBV clearance in infected individuals.
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Affiliation(s)
- Alireza Shah-Hosseini
- Immunology Research Center (IRC), Institute of Immunology and Infectious Disease, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Jafari
- Immunology Research Center (IRC), Institute of Immunology and Infectious Disease, Iran University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Research Center, Gerash University of Medical Science, Gerash, Iran
| | - Asadollah Mohammadi
- Immunology Research Center (IRC), Institute of Immunology and Infectious Disease, Iran University of Medical Sciences, Tehran, Iran.,Inflammation and Inflammatory Disease Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Roozbeh Sanaei
- Immunology Research Center (IRC), Institute of Immunology and Infectious Disease, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Moayed Alavian
- Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Amin Doosti-Irani
- Department of Epidemiology, School of Public Health, Hamadan University of Medical Science, Hamadan, Iran
| | | | - Nader Tajik
- Immunology Research Center (IRC), Institute of Immunology and Infectious Disease, Iran University of Medical Sciences, Tehran, Iran.
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15
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Mohammad-Ebrahim H, Kamali-Sarvestani E, Mahmoudi M, Beigy M, Karami J, Ahmadzadeh N, Shahram F. Association of killer cell immunoglobulin-like receptor (KIR) genes and their HLA ligands with susceptibility to Behçet's disease. Scand J Rheumatol 2017; 47:155-163. [PMID: 28862099 DOI: 10.1080/03009742.2017.1340510] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
OBJECTIVES Behçet's disease (BD) is a systemic inflammatory disorder with remissions and exacerbations. It is thought that defects in the natural killer (NK) cell repertoire may be involved in BD through killer cell immunoglobulin-like receptors (KIRs). This study aimed to evaluate KIR and HLA genes, their interactions in BD patients, and their associations with clinical manifestations. METHOD The presence or absence of KIR and HLA alleles and genotypes was analysed by polymerase chain reaction sequence-specific primer on genomic DNA of 397 BD patients and 300 healthy controls. RESULTS None of the KIR genes showed significant effects on BD susceptibility. HLA-C1Asn80 showed a protective effect against BD, whereas HLA-C2Lys80, HLA-B-Bw4Ile80, HLA-B5, and HLA-B51 were associated with a susceptibility risk for BD. In the combination of KIR and HLA genes, the frequencies of HLA genotypes no. 2, 3, 5, and 8, and inhibitory KIR no. 4 were significantly higher in patients than in controls. The frequencies of KIR genotype no. 3 and HLA genotypes no. 1, 4, 6, 7, and 9 were significantly lower in patients than in controls. There were many associations between KIR and HLA genes with clinical features of BD. CONCLUSION Differences in the frequency of HLA genes, KIR-HLA interactions, and genotypes between BD and healthy controls and their associations with clinical manifestations indicate that NK cells are involved in BD pathogenesis. The observed differences indicated an NK cell activity imbalance in BD patients, and suggest a role of the KIR-HLA repertoire in the development of BD.
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Affiliation(s)
- H Mohammad-Ebrahim
- a Department of Immunology, School of Medicine , Shiraz University of Medical Sciences , Shiraz , Iran.,b Autoimmune Disease Research Centre , Shiraz University of Medical Sciences , Shiraz , Iran.,c Rheumatology Research Center , Tehran University of Medical Sciences , Tehran , Iran
| | - E Kamali-Sarvestani
- a Department of Immunology, School of Medicine , Shiraz University of Medical Sciences , Shiraz , Iran.,b Autoimmune Disease Research Centre , Shiraz University of Medical Sciences , Shiraz , Iran
| | - M Mahmoudi
- c Rheumatology Research Center , Tehran University of Medical Sciences , Tehran , Iran
| | - M Beigy
- c Rheumatology Research Center , Tehran University of Medical Sciences , Tehran , Iran.,d Students' Scientific Research Center (SSRC) , Tehran University of Medical Sciences , Tehran , Iran
| | - J Karami
- e Department of Immunology , School of Medicine, Iran University of Medical Sciences , Tehran , Iran
| | - N Ahmadzadeh
- c Rheumatology Research Center , Tehran University of Medical Sciences , Tehran , Iran
| | - F Shahram
- c Rheumatology Research Center , Tehran University of Medical Sciences , Tehran , Iran
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16
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Machado-Sulbaran AC, Muñoz-Valle JF, Ramírez-Dueñas MG, Baños-Hernández CJ, Graciano-Machuca O, Velarde-De la Cruz EE, Parra-Rojas I, Sánchez-Hernández PE. Distribution of KIR genes and KIR2DS4 gene variants in two Mexican Mestizo populations. Hum Immunol 2017; 78:614-20. [PMID: 28734803 DOI: 10.1016/j.humimm.2017.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 07/15/2017] [Accepted: 07/16/2017] [Indexed: 12/24/2022]
Abstract
Killer immunoglobulin-like receptors (KIR) are transmembrane proteins that regulate NK and T cell subsets by recognizing HLA-I molecules as ligands. The KIR gene family consists of 16 genes, located at chromosome 19q13.4. KIR gene frequencies vary among populations. In Mexico, HLA and genetic ancestry studies show that Mestizo populations have different genetic backgrounds based on admixture with European, African, and Asian ancestry. This study aimed to evaluate the frequencies of KIR genes and genotypes in Guerrero and Jalisco, two Mexican Mestizo populations located in the south and the west of the country, respectively, and to compare these frequencies with those of other populations. KIR genotyping was performed by SSP-PCR. We observed that KIR gene frequencies were similar in both populations. There were 24 genotypes observed in Guerrero, 38 genotypes observed in Jalisco, 15 genotypes shared in both populations and 32 genotypes unique to one population or the other. In 10 individuals, nine novel genotypes were identified. KIR2DS4 gene variants showed significant differences: The KIR2DS4full gene was more common in Guerrero (p<0.0001), and the KIR2DS4del variant was more common in Jalisco (p<0.05). Differences in KIR2DS4 gene variants and genotypic profiles could be influenced by the genetic admixture in both regions.
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17
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Chaisri S, Leelayuwat C, Romphruk A. Genetic study of KIR and HLA ligands in 235 individuals from Northeastern Thailand. Hum Immunol 2017; 78:395-396. [PMID: 28431957 DOI: 10.1016/j.humimm.2017.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 04/10/2017] [Accepted: 04/12/2017] [Indexed: 10/19/2022]
Abstract
The diversity of 17 KIR and HLA ligands (HLA-C1, C2, Bw4, A11) were investigated in two hundred and thirty-five unrelated healthy donors in Northeastern Thais (NETs) by the polymerase chain reaction with sequence-specific primer (PCR-SSP) method. The Hardy-Weinberg Equilibrium (HWE) was used to verify genotyping method for dimorphic KIR and HLA. They were in HWE (p>0.05). KIR and HLA ligands frequencies, genotypes, haplotypes and linkage disequilibrium (LD) were presented. The genetic data are available in allele Frequencies Net Database.
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Affiliation(s)
- Suwit Chaisri
- Chulabhorn International College of Medicine (CICM), Thammasat University, Pathum Thani 12121, Thailand; The Centre for Research and Development of Medical Diagnostic Laboratories (CMDL), Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Chanvit Leelayuwat
- The Centre for Research and Development of Medical Diagnostic Laboratories (CMDL), Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; Department of Clinical Immunology and Transfusion Sciences, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Amornrat Romphruk
- The Centre for Research and Development of Medical Diagnostic Laboratories (CMDL), Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; Blood Transfusion Center, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
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18
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Mahmoudi M, Fallahian F, Sobhani S, Ghoroghi S, Jamshidi A, Poursani S, Dolati M, Hosseinpour Z, Gharibdoost F. Analysis of killer cell immunoglobulin-like receptors (KIRs) and their HLA ligand genes polymorphisms in Iranian patients with systemic sclerosis. Clin Rheumatol 2017; 36:853-62. [PMID: 28120169 DOI: 10.1007/s10067-016-3526-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 12/13/2022]
Abstract
Genetic factors have a great role in the pathogenesis of autoimmune diseases by cooperating with environmental stimuli. Killer immunoglobulin-like receptors (KIRs) are cell surface proteins on NK cells whose association with major histocompatibility complex-I regulates their killing function. The aim of this study was to provide information on the possible association between KIR and human leukocyte antigen (HLA) genes with systemic sclerosis disease in Iranian population. A total of 279 systemic sclerosis patients and 451 healthy controls were enrolled in this case-control study in order to determine the presence or absence of 19 KIR genes and 6 specific HLA class I ligands. DNA was analyzed by polymerase chain reaction using the specific sequence primer method (PCR-SSP). Among 11 discovered KIR genotypes, 6 genotypes showed a considerable role and 4 genotypes could preclude the risk of systemic sclerosis (SSc) disease. The gene-gene interactions were also analyzed, and significant confounding effects were seen between involved genes in these two combinations: "KIR3DL1; HLA-BW4-Thr80" and "KIR3DL1 -HLA-BW4-A1." None of single KIR genes showed significant effect on the risk of SSc. We conclude that there is an important relationship between KIR genes and their HLA ligands with incidence rate of systemic sclerosis in Iranian population. The powerful role of a number of discovered KIR/HLA compounds such as activating KIR genotype 3 and HLA-BW4-A1 confirmed the provocative hypothesis of the interplay between activating or inhibitory KIR genes with HLA ligands as a critical index of systemic sclerosis predisposition.
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19
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Shahsavar F, Mapar S, Ahmadi SAY. Multiple sclerosis is accompanied by lack of KIR2DS1 gene: A meta-analysis. Genom Data 2016; 10:75-78. [PMID: 27747156 PMCID: PMC5054263 DOI: 10.1016/j.gdata.2016.09.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 09/20/2016] [Accepted: 09/26/2016] [Indexed: 01/23/2023]
Abstract
Multiple sclerosis (MS) is a disease in which we can recognize destruction of the myelin that is around nerve cells of brain and spinal cord called as oligodendrocytes. Both genetic and environmental factors play roles in MS. One of these genes is the killer-cell immunoglobulin-like receptor (KIR) which expressed on surface of natural killer cells (NKs). These genes have loci (not locus) in human genome, so they inherit as haplotypes. The results of previous studies show that different genes of KIR may affect both susceptibility and resistance to such autoimmune disorders that their pathogenesis in MS is still unclear. Since NKs play key roles in immune tolerance, we intend to perform a meta-analysis for the correlation of KIR genes and MS. We used the software comprehensive meta-analysis for data of totally 568 MS patients and 280 controls. Among the 14 genes of KIR in the human genome, lack of KIR2DS1 is accompanied by MS. No KIR gene found to be a risk factor for MS. Further studies on other molecules of NKs like CD94 and NKG2a is suggested.
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Affiliation(s)
- Farhad Shahsavar
- Associate Professor, Department of Immunology, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Shaghayegh Mapar
- Student Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran
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20
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Ghanadi K, Shayanrad B, Ahmadi SAY, Shahsavar F, Eliasy H. Colorectal cancer and the KIR genes in the human genome: A meta-analysis. Genom Data 2016; 10:118-126. [PMID: 27843767 PMCID: PMC5099266 DOI: 10.1016/j.gdata.2016.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/21/2016] [Accepted: 10/30/2016] [Indexed: 02/07/2023]
Abstract
Colorectal cancer is one of the most common types of inflammation-based cancers and is occurred due to growth and spread of cancer cells in colon and/or rectum. Previously genetic association of cell cycle genes, both proto-oncogenes and the tumor suppressors has been proved. But there were few studies about association of immune related genes such as killer-cell immunoglobulin-like receptors (KIRs). Thus we intend to perform a meta-analysis to find the association of different genes of KIR and susceptibility to be affected by colorectal cancer. The overall population of the four studies investigated in our meta-analysis was 953 individuals (470 individuals with colorectal cancer and 483 individuals in control groups). After the analyses, we concluded that colorectal cancer is affected by KIR2DS5 and also there were no protecting gene. This result shows the inflammatory basis of this cancer. In other words, in contrast to leukemia and blood cancers, colorectal cancers seem to be affected by hyper activity of natural killer-cells (NKs). Whys and therefore of this paradox, is suggested to be investigated further.
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Affiliation(s)
- Koroush Ghanadi
- Department of Internal Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Bahareh Shayanrad
- Department of Immunology, Lorestan University of Medical Sciences, Khorramabad, Iran; Student Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran
| | | | - Farhad Shahsavar
- Department of Immunology, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Hossein Eliasy
- Research Office for the History of Persian Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
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21
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Omar SYA, Alkuriji A, Alwasel S, Dar JA, Alhammad A, Christmas S, Mansour L. Genotypic diversity of the Killer Cell Immunoglobulin-like Receptors (KIR) and their HLA class I Ligands in a Saudi population. Genet Mol Biol 2016; 39:14-23. [PMID: 27007893 PMCID: PMC4807387 DOI: 10.1590/1678-4685-gmb-2015-0055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 08/04/2015] [Indexed: 12/31/2022] Open
Abstract
Killer Cell Immunoglobulin-like Receptors (KIR) have been used as good markers for the study of genetic predisposition in many diseases and in human genetic population dynamics. In this context, we have investigated the genetic diversity of KIR genes and their main HLA class I ligands in Saudi population and compared the data with other studies of neighboring populations. One hundred and fourteen randomly selected healthy Saudi subjects were genotyped for the presence or absence of 16 KIR genes and their HLA-C1, -C2, -Bw4Thr80 and Bw4Ile80 groups, using a PCR-SSP technique. The results show the occurrence of the framework genes (3DL2, 3DL3 and 2DL4) and the pseudogenes (2DP1 and 3DP1) at highest frequencies. All inhibitory KIR (iKIR) genes appeared at higher frequencies than activating genes (aKIR), except for 2DS4 with a frequency of 90.35%. A total of 55 different genotypes were observed appearing at different frequencies, where 12 are considered novel. Two haplotypes were characterized, AA and Bx (BB and AB), which were observed in 24.5% and 75.5% respectively of the studied group. The frequencies of iKIR + HLA associations were found to be much higher than aKIR + HLA. KIR genes frequencies in the Saudi population are comparable with other Middle Eastern and North African populations.
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Affiliation(s)
- Suliman Y Al Omar
- Zoology Department, College of Science, King Saud University, Riyad, Saudi Arabia
| | - Afrah Alkuriji
- Zoology Department, College of Science, King Saud University, Riyad, Saudi Arabia
| | - Saleh Alwasel
- Zoology Department, College of Science, King Saud University, Riyad, Saudi Arabia
| | - Javid Ahmed Dar
- Central Laboratory College of Science, King Saud University, Riyad, Saudi Arabia
| | - Alwaleed Alhammad
- Immunology Unit, Department of Pathology, King Saud University, Riyad, Saudi Arabia
| | - Stephen Christmas
- Department of Clinical Infection, Microbiology & Immunology, Institute of Global Health, Faculty of Health & Life Sciences, University of Liverpool, Liverpool, UK
| | - Lamjed Mansour
- Zoology Department, College of Science, King Saud University, Riyad, Saudi Arabia
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22
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Nazari M, Mahmoudi M, Rahmani F, Akhlaghi M, Beigy M, Azarian M, Shamsian E, Akhtari M, Mansouri R. Association of Killer Cell Immunoglobulin- Like Receptor Genes in Iranian Patients with Rheumatoid Arthritis. PLoS One 2015; 10:e0143757. [PMID: 26658904 PMCID: PMC4687638 DOI: 10.1371/journal.pone.0143757] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 11/09/2015] [Indexed: 12/29/2022] Open
Abstract
Objectives Rheumatoid arthritis (RA) is a chronic inflammatory disorder characterized by persistent synovitis, ultimately leading to cartilage and bone degeneration. Natural Killer cells and CD28 null T-cells are suspected as role players in RA pathogenesis. These cells are similar in feature and function, as they both exert their cytotoxic effect via Killer Cell Immunoglobulin- Like Receptors (KIR) on their surface. KIR genes have either an inhibitory or activating effect depending on their intracytoplasmic structure. Herein we genotyped 16 KIR genes, 3 pseudo genes and 6 HLA class І genes as their corresponding ligands in RA patients and control subjects. Methods In this case-control study, KIR and HLA genes were genotyped in 400 RA patients and 372 matched healthy controls using sequence-specific primers (SSP-PCR). Differences in the frequency of genes and haplotypes were determined by χ² test. Results KIR2DL2, 2DL5a, 2DL5b and activating KIR: KIR2DS5 and 3DS1 were all protective against RA. KIR2DL5 removal from a full Inhibitory KIR haplotype converted the mild protection (OR = 0.56) to a powerful predisposition to RA (OR = 16.47). Inhibitory haplotype No. 7 comprising KIR2DL5 in the absence of KIR2DL1 and KIR2DL3 confers a 14-fold protective effect against RA. Conclusion Individuals carrying the inhibitory KIR haplotype No. 6 have a high potential risk for developing RA.
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Affiliation(s)
- Masoumeh Nazari
- Immunology Department, Shahid Sadoughi University of Medical Sciences (International Campus), Yazd, Iran
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- * E-mail: (MM); (RM)
| | - Farzaneh Rahmani
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Students’ Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoomeh Akhlaghi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Maani Beigy
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Students’ Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Azarian
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Elmira Shamsian
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Akhtari
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Mansouri
- Immunology Department, Shahid Sadoughi University of Medical Sciences (International Campus), Yazd, Iran
- Immunology Department, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- * E-mail: (MM); (RM)
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Al Omar SY, Mansour L, Dar JA, Alwasel S, Alkhuriji A, Arafah M, Al Obeed O, Christmas S. The Relationship Between Killer Cell Immunoglobulin-Like Receptors and HLA-C Polymorphisms in Colorectal Cancer in a Saudi Population. Genet Test Mol Biomarkers 2015; 19:617-22. [PMID: 26383988 DOI: 10.1089/gtmb.2015.0105] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIMS We performed an association study to evaluate the contribution of 16 killer cell immunoglobulin-like receptor (KIR) genotype polymorphisms and the HLA-C1 and -C2 ligands in the development of colorectal cancer (CRC) in Saudi Arabian patients. METHODS A total of 52 patients with different stages of malignant CRC as well as 70 healthy Saudi controls were enrolled at the King Khalid University Hospital. RESULTS Our results showed that the frequency of the activating mutations KIR2DS1, 2DS2, 2DS3, 2DS5, and 3DS1 was significantly higher in CRC patients compared to controls. The 3DS1 gene contributed to the highest risk of CRC (odds ratio [OR] = 16.25, p < 0.0001), followed by 2DS1 (OR = 8.6; p < 0.0001). The distributions of HLA-C1 and -C2 ligands were not significantly different between patients and controls. Analyses of different combinations of KIR genes with their HLA-C1 and -C2 ligands show that the frequency of 2DL3 in the presence of its ligand, the allotype C1, was significantly more prevalent in patients compared to controls. In addition, 2DL2 and 2DL3 that were aggregated in combination with the ligand, HLA-C1, were found to be more highly associated mainly with the homozygote HLA-C1/C1 (p = 0.03; OR = 2.6). The activating mutations 2DS1 and 2DS2 when combined with their respective ligands, HLA-C2 and -C1, showed highly significant associations with CRC development. CONCLUSION This study supports a key role for KIR gene mutations in the development of CRC, especially in association with their ligands.
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Affiliation(s)
- Suliman Y Al Omar
- 1 Department of Zoology, College of Science, King Saud University , Riyadh, Saudi Arabia
| | - Lamjed Mansour
- 1 Department of Zoology, College of Science, King Saud University , Riyadh, Saudi Arabia
| | - Javid Ahmed Dar
- 2 Central Laboratory College of Science, King Saud University , Riyadh, Saudi Arabia
| | - Saleh Alwasel
- 1 Department of Zoology, College of Science, King Saud University , Riyadh, Saudi Arabia
| | - Afrah Alkhuriji
- 1 Department of Zoology, College of Science, King Saud University , Riyadh, Saudi Arabia
| | - Maha Arafah
- 3 Department of Pathology, King Saud University , Riyadh, Saudi Arabia
| | - Omar Al Obeed
- 4 Department of Surgery, Colorectal Research Center, King Saud University , Riyadh, Saudi Arabia
| | - Stephen Christmas
- 5 Department of Clinical Infection, Microbiology and Immunology, Faculty of Health and Life Sciences, Institute of Global Health, University of Liverpool , Liverpool, United Kingdom
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Bani M, Seket J, Kaabi H, Cherif G, Chaabane M, Bellali H, Hmida S. Killer cell immunoglobulin-like receptor (KIR) locus profiles in the Tunisian population. Hum Immunol 2015; 76:355-61. [DOI: 10.1016/j.humimm.2015.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Revised: 02/17/2015] [Accepted: 03/11/2015] [Indexed: 10/23/2022]
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Vojvodić SI, Ademović-Sazdanić DS, Popović SL, Konstantinidis NV. Distribution of killer cell immunoglobulin-like receptor genes in population of Vojvodina, Serbia. Ann Hum Biol 2014; 42:476-84. [PMID: 25359715 DOI: 10.3109/03014460.2014.966756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Killer cell immunoglobulin-like receptors (KIRs) are glycoproteins regulating the response of natural killer (NK) cells and a few sub-sets of T-cells. The KIR gene frequencies and genotype content vary considerably among different ethnic groups. AIM The aim of this study was to analyse KIR gene polymorphism in the population of Vojvodina and to compare it with selected worldwide populations. SUBJECTS AND METHODS The studied sample consists of 134 healthy unrelated individuals, residents of different geographical regions of Vojvodina. DNA samples isolated from peripheral blood leukocytes by the silica-based extraction method were used in reverse PCR-SSO and PCR-SSP technique to detect the presence and absence of KIR genes. RESULTS All 16 KIR genes, a total of 37 different KIR genotypes, were observed in the Vojvodina population with the presence of framework and pseudogenes in all individuals. The neighbour-joining phylogenetic tree shows that the Vojvodina population is in the same cluster with Croatians, Turkish, Russians, Czechs, Irish, Italians, French, Macedonians and Polish. The Vojvodina population shows polymorphism of the KIR gene family present in other European and European-derived populations studied previously. CONCLUSION The present study may serve as a reference for comparisons in further anthropological and disease association studies and also provide more informative data valuable for donor search strategy in haematopoietic stem cell transplantation.
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Affiliation(s)
- Svetlana I Vojvodić
- a Department for Laboratory Diagnostics , Institute for Blood Transfusion of Vojvodina , Hajduk Veljkova 9a , Novi Sad , Serbia
| | - Dušica S Ademović-Sazdanić
- a Department for Laboratory Diagnostics , Institute for Blood Transfusion of Vojvodina , Hajduk Veljkova 9a , Novi Sad , Serbia
| | - Stevan L Popović
- b Deprtment of Hematology , Institute for Internal Medicine , Novi Sad , Serbia , and
| | - Nada V Konstantinidis
- c Department of Oncology and Hematology , Institute for Child and Youth Health Care of Vojvodina , Novi Sad , Serbia
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Marangon AV, Visentainer JEL, Guelsin GAS, Clementino SL, Rudnick CCC, de Melo FC, Braga MA, Sell AM. Investigation of deletion of 22pb in KIR2DS4 gene in a population of southern Brazil. J Clin Lab Anal 2014; 28:440-5. [PMID: 24659081 DOI: 10.1002/jcla.21707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 10/02/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the distribution of full-length and deleted variants of KIR2DS4 in a population of southern Brazil and compare the results with other populations, as well as comparing two techniques, PCR-SSP and PCR-SSO, for typing of variants. METHODS 258 individuals from southern Brazil were analysed by PCR-SSO ("polymerase chain reaction-sequence specific oligonucleotides", One Lambda, Inc., Canoga Park, CA), of which 161 were also analysed by PCR-SSP. RESULTS The study population showed similarities with other Caucasian populations; 46.5% of individuals had only KIR2DS4 variants, 21.3% had the full-length form and 25.1% had both forms. CONCLUSION The frequencies found in both groups (genotyped by PCR-SSP and PCR-SSO) were 100% concordant.
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Affiliation(s)
- Amanda Vansan Marangon
- Departamento de Ciências Básicas da Saúde, Laboratório de Imunogenética, Universidade Estadual de Maringá, Av. Colombo 5790, Maringá, PR 87020-900, Brazil
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Kaewmanee M, Phoksawat W, Romphruk A, Romphruk AV, Jumnainsong A, Leelayuwat C. Development of a multiplex polymerase chain reaction-sequence-specific primer method for NKG2D and NKG2F single-nucleotide polymorphism typing using isothermal multiple displacement amplification products. ACTA ACUST UNITED AC 2013; 81:419-27. [PMID: 23530727 DOI: 10.1111/tan.12105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 02/20/2013] [Accepted: 02/25/2013] [Indexed: 12/20/2022]
Abstract
Natural killer group 2 member D (NKG2D) on immune effector cells recognizes multiple stress-inducible ligands. NKG2D single-nucleotide polymorphism (SNP) haplotypes were related to the levels of cytotoxic activity of peripheral blood mononuclear cells. Indeed, these polymorphisms were also located in NKG2F. Isothermal multiple displacement amplification (IMDA) is used for whole genome amplification (WGA) that can amplify very small genomic DNA templates into microgram with whole genome coverage. This is particularly useful in the cases of limited amount of valuable DNA samples requiring multi-locus genotyping. In this study, we evaluated the quality and applicability of IMDA to genetic studies in terms of sensitivity, efficiency of IMDA re-amplification and stability of IMDA products. The smallest amount of DNA to be effectively amplified by IMDA was 200 pg yielding final DNA of approximately 16 µg within 1.5 h. IMDA could be re-amplified only once (second round of amplification), and could be kept for 5 months at 4°C and more than a year at -20°C without loosing genome coverage. The amplified products were used successfully to setup a multiplex polymerase chain reaction-sequence-specific primer for SNP typing of the NKG2D/F genes. The NKG2D/F multiplex polymerase chain reaction (PCR) contained six PCR mixtures for detecting 10 selected SNPs, including 8 NKG2D/F SNP haplotypes and 2 additional NKG2D coding SNPs. This typing procedure will be applicable in both clinical and research laboratories. Thus, our data provide useful information and limitations for utilization of genome-wide amplification using IMDA and its application for multiplex NKG2D/F typing.
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Affiliation(s)
- M Kaewmanee
- Biomedical Sciences Program, Graduate School, Khon Kaen University, Khon Kaen, 40002, Thailand
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Jiang B, Wang A, Ju Z, Zhang Y. Diversity of killer cell immunoglobulin like receptor genes in the Mongolian population. Hum Immunol 2013; 74:787-91. [PMID: 23380139 DOI: 10.1016/j.humimm.2013.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 01/09/2013] [Accepted: 01/14/2013] [Indexed: 10/27/2022]
Abstract
Killer cell immunoglobulin like receptor (KIR) is highly polymorphic in genotype, haplotype and allele levels. This study was done to investigate KIR genes frequencies, genotypes and inheritance in Mongolian. Gene-specific PCR amplification was used to identify the presence or absence of 16 KIR loci.KIR genotypes were obtained by a KIR genotypes website. The KIR genes frequencies of Mongolian were compared to 24 different populations around the world. The distribution of haplotype B in Mongolian was higher than that in Mongoloid and less than that in Caucasian. Thirty discovered genotypes and five novel genotypes were identified from 1 to 34 individuals. 37.8% of Mongolian carried KIR haplotype AA.Mongolian was exhibited between North Mongoloid and Caucasus by principal component and genetic tree analysis.
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Affiliation(s)
- Bo Jiang
- Department of Medical Oncology, The Fourth Affiliated Hospital of Soochow University, Wuxi, China
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Pydi SS, Sunder SR, Venkatasubramanian S, Kovvali S, Jonnalagada S, Valluri VL. Killer cell immunoglobulin like receptor gene association with tuberculosis. Hum Immunol. 2013;74:85-92. [PMID: 23073291 DOI: 10.1016/j.humimm.2012.10.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Revised: 09/04/2012] [Accepted: 10/03/2012] [Indexed: 12/22/2022]
Abstract
NK cells are vital components of innate immune system and are the first cells which come into picture mediating resistance against intracellular pathogens. NK cell cytotoxicity is modulated by a wide variety of cell surface receptors that recognize and respond towards infected cells. Activation of NK cells are controlled by both inhibitory and activating receptors, encoded by KIR genes and bind to HLA ligands. Not much is known about KIR genes and their influence on the pathogenesis with M. tuberculosis infection. Our study aimed at detecting the presence of 14 KIR genes, their distribution and their association with tuberculosis. Total 77 different genotype combinations were observed which belonged to B-haplotype. Fifteen genotypes were similar to those reported in other world populations while remaining 62 were unique to this study group. Inhibitory genes KIR3DL1, KIR2DL3 and activating genes KIR2DS1, KIR2DS5 conferred susceptibility towards TB either individually or in haplotype combinations. The complimentary MHC ligands need to be tested for the functional relevance of the associated genes.
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Tajik N, Shah-hosseini A, Mohammadi A, Jafari M, Nasiri M, Radjabzadeh MF, Farnia P, Jalali A. Susceptibility to pulmonary tuberculosis in Iranian individuals is not affected by compound KIR/HLA genotype. ACTA ACUST UNITED AC 2011; 79:90-6. [DOI: 10.1111/j.1399-0039.2011.01812.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Solgi G, Ghafari H, Ashouri E, Alimoghdam K, Rajalingam R, Amirzargar A. Comparison of KIR gene content profiles revealed a difference between northern and southern Persians in the distribution of KIR2DS5 and its linked loci. Hum Immunol 2011; 72:1079-83. [PMID: 21867738 DOI: 10.1016/j.humimm.2011.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2011] [Revised: 07/22/2011] [Accepted: 08/04/2011] [Indexed: 01/24/2023]
Abstract
Killer cell immunoglobulin-like receptors (KIR) are the key receptors of human natural killer (NK) cells that mount an early immune response against infection and tumors. The number and type of KIR genes are substantially variable between individuals and populations. Recently we reported KIR gene content diversity in a Persian population living in the southern province of Fars, which is comparable to that of European Caucasians. These results are consistent with the ethnic ancestry and affinity between Persians and Caucasians. Herein we analyzed another Persian population living in the northern province of Tehran and discovered an unexpected increase in the distribution of KIR2DS5 and its linked loci KIR3DS1, -2DS1, and -2DL5 in northern Persians compared with that reported in the southern Persian population. Although the geographic barriers may have limited the gene flow, the impact of the local environment on the natural selection of KIR2DS5 and its linked loci in the northern Persians cannot be completely ruled out. The difference in northern and southern populations in activating KIR gene content creates an appealing hypothesis that KIR2DS5-enriched northern Persians are more resistant to developing clinical conditions demonstrated to be associated with KIR2DS5, such as psoriasis vulgaris, endometriosis, ankylosing spondylitis, and acute rejection of kidney grafts, compared with those living in the southern part of the country.
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Affiliation(s)
- Ghasem Solgi
- Immunology Department, Medical School, Ahvaz University of Medical Sciences, Ahvaz, Iran
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Tajik N, Shahsavar F, Poormoghim H, Radjabzadeh MF, Mousavi T, Jalali A. KIR3DL1+HLA-B Bw4Ile80 and KIR2DS1+HLA-C2 combinations are both associated with ankylosing spondylitis in the Iranian population. Int J Immunogenet 2011; 38:403-9. [PMID: 21797986 DOI: 10.1111/j.1744-313x.2011.01024.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Contribution of killer cell immunoglobulin-like receptors (KIR) and their human leucocyte antigen (HLA) class I ligands in the pathogenesis of autoimmune diseases has been shown in several studies. In this study, the possible association of KIR genes, their known HLA ligands and compound KIR/HLA genotypes with ankylosing spondylitis (AS) was assessed. Combined KIR/HLA ligand genotyping was performed by a polymerase chain reaction-sequence-specific primers assay in 35 Iranian patients with AS, and genotypes were compared to those in 200 healthy individuals. The frequencies of telomeric cluster genes KIR2DL5A, KIR2DS1 and KIR3DS1 were significantly increased in AS patient group (P(c) = 0.0082, P(c) = 0.0195 and P(c) = 0.0328, respectively). Conversely, HLA-Bw4 ligand (the presence of one or more -B Bw4(Ile80) , -B Bw4(Thr80) and -A Bw4 epitopes) (P(c) = 0.0004) and HLA-B Bw4(Ile80) (P(c) = 0.053) were less frequent in these patients. Meanwhile, compound KIR/HLA genotype analyses revealed lower frequency of KIR3DL1+HLA-B Bw4(Ile80) (P(c) = 0.0343) and higher frequency of KIR2DS1+HLA-C2 (P(c) = 0.0308) combinations in patients with AS than in controls. In addition, the genotypes iKIR+HLA > aKIR+HLA (P(c) = .0308) and iKIR+HLA > aKIR (P(c) = 0.0258) were statistically less common, and genotypes iKIR+HLA = aKIR+HLA (P(c) = 0.0081) and iKIR+HLA < aKIR (P(c) = 0.077) were more common in patient group. Our findings suggest a role for excessive or inappropriate NK cell activation through 'KIR/HLA' system in AS disease.
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Affiliation(s)
- N Tajik
- Division of Transplant Immunology and Immunogenetics, Department of Immunology, Tehran University of Medical Sciences, Tehran, Iran.
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Alvarado-hernández DL, Hernández-ramírez D, Noyola DE, García-sepúlveda CA. KIR gene diversity in Mexican mestizos of San Luis Potosí. Immunogenetics 2011; 63:561-75. [DOI: 10.1007/s00251-011-0540-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 05/19/2011] [Indexed: 10/18/2022]
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Gourjon G, Boëtsch G, Degioanni A. Gender and population history: Sex bias revealed by studying genetic admixture of Ngazidja population (Comoro Archipelago). Am J Phys Anthropol 2011; 144:653-60. [PMID: 21312182 DOI: 10.1002/ajpa.21474] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2010] [Accepted: 11/22/2010] [Indexed: 11/09/2022]
Affiliation(s)
- Géraud Gourjon
- UMR 6578 Anthropologie bioculturelle, Université de la Méditerranée/CNRS/EFS, Faculté de Médecine-Secteur Nord Université de la Méditerranée, Bd. Pierre Dramard, Marseille Cedex 15, France
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Abstract
Natural killer (NK) cells eliminate infected and transformed cells while still are self-tolerant. Interactions of the independently segregating Killer cell immunoglobulin-like receptors (KIR) and human leucocyte antigens (HLA) loci play a critical role in NK cell regulation. Different compound KIR-HLA genotypes can impart different thresholds of activation to the NK-cell repertoire and such genotypic variation has been found to confer altered risk in a number of human diseases including viral infections, autoimmune disorders, reproduction abnormalities and cancers. In this study, we presented a novel combined KIR-HLA polymerase chain reaction-sequence-specific primers genotyping assay for simultaneous determination of KIR genes and their three major HLA class I ligand groups (C1, C2, and Bw4). Moreover, known inhibitory and activating KIR + HLA (iKIR + HLA: 2DL2/3 + C1, 2DL1 + C2, 3DL1 + Bw4; and aKIR + HLA: 2DS2 + C1, 2DS1 + C2, 3DS1 + Bw4) combinations as well as co-inheritance of aKIR genes and iKIR + HLA pairs were analysed in a total of 200 unrelated healthy Iranian individuals. All tested subjects had at least one of the three iKIR + HLA pairs and the frequencies of various inhibitory combinations in the study group were: 31.5%, three iKIR + HLA pairs, 53.5%, two iKIR + HLA pairs, and 15%, 0ne iKIR + HLA pair. Furthermore, we revealed that majority of Iranians (69%) carry compound genotypes with greater number of inhibitory pairings than activating combinations (iKIR + HLA > aKIR + HLA). Conversely, iKIR + HLA < aKIR (45%) was dominant genotype in the study group. We conclude that selective evolutionary pressure has propensity to maintain KIR-HLA genotypes with more inhibitory combinations to guarantee self-tolerance. In contrast, existence of activating KIR genes without normal endogenous ligands, potentially arms the NK population for competent immunosurveillance and stronger defense against infections.
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Affiliation(s)
- N Tajik
- Division of Transplant Immunology and Immunogenetics, Department of Immunology, Iran University of Medical Sciences, Tehran, Iran.
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Hiby SE, Ashrafian-Bonab M, Farrell L, Single RM, Balloux F, Carrington M, Moffett A, Ebrahimi Z. Distribution of killer cell immunoglobulin-like receptors (KIR) and their HLA-C ligands in two Iranian populations. Immunogenetics 2010; 62:65-73. [PMID: 19936734 DOI: 10.1007/s00251-009-0408-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2009] [Accepted: 10/26/2009] [Indexed: 11/25/2022]
Abstract
Killer cell immunoglobulin-like receptors (KIR) gene frequencies vary between populations and contribute to functional variation in immune responses to viruses, autoimmunity and reproductive success. This study describes the frequency distribution of 12 variable KIR genes and their HLA-C ligands in two Iranian populations who have lived for many generations in different environments: the Azerbaijanis at high altitude and the Jonobi people at sea level. The results are compared with those published for other human populations and a large group of English Caucasians. Differences were seen in KIR and HLA-C group frequencies, in linkage disequilibrium and inhibitory/activating KIR ratios between the groups. Similarities with geographically close populations in the frequencies of the KIR A and B haplotypes and KIR AA genotype reflected their common ancestry. The extreme variability of the KIR gene family and their HLA-C ligands is highlighted and their importance in defining differences between geographically and culturally isolated communities subject to different environmental pressures who come from the same ethnic grouping.
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