1
|
Simeni LAK, Ekali GL, Yengo CK, Wouambo RK, Fischer J, Bessong OMA, Fokam J, Yindom LM, Nguedia JCA. KIR2DL1 gene is a surrogate marker of protection against infection-related hospitalization among HIV-1 unexposed versus exposed uninfected infants in Cameroon. BMC Immunol 2024; 25:54. [PMID: 39090586 PMCID: PMC11293080 DOI: 10.1186/s12865-024-00645-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 07/23/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND HIV-exposed uninfected infants (HEU) appear more vulnerable to infections compared to their HIV-unexposed uninfected (HUU) peers, generally attributed to poor passive immunity acquired from the mother. This may be due to some genetic factors that could alter the immune system. We thus sought to determine the distribution of Killer Cell Immunoglobulin-Like Receptors (KIRs) genes in HEU versus HUU and study their associations with the occurrence of infection-related hospitalization. METHODS A cohort study was conducted from May 2019 to April 2020 among HEU and HUU infants, including their follow-up at weeks 6, 12, 24, and 48, in reference pediatric centers in Yaoundé-Cameroon. The infant HIV status and infections were determined. A total of 15 KIR genes were investigated using the sequence-specific primer polymerase chain reaction (PCR-SSP) method. The KIR genes that were significantly associated with HIV-1 status (HEU and HUU) were analyzed for an association with infection-related hospitalizations. This was only possible if, and to the extent that, infection-related hospitalizations varied significantly according to status. Multivariate logistic regression analyses were conducted to determine the association between KIR gene content variants and HIV status, while considering a number of potential confounding factors. Furthermore, the risk was quantified using relative risk, odds ratio, and a 95% confidence interval. The Fisher exact test was employed to compare the frequency of occurrences. A p-value of less than 0.05 was considered statistically significant. RESULTS In this cohort, a total of 66 infants participated, but only 19 acquired infections requiring hospitalizations (14.81%, 04/27 HUU and 38.46%, 15/39 HEU, p = 0.037). At week 48 (39 HEU and 27 HUU), the relative risk (RR) for infection-related hospitalizations was 2.42 (95% CI: 1.028-5.823) for HEU versus HUU with OR 3.59 (1.037-12.448). KIR2DL1 gene was significantly underrepresented in HEU versus HUU (OR = 0.183, 95%CI: 0.053-0.629; p = 0.003), and the absence of KIR2DL1 was significantly associated with infection-related hospitalization (p < 0.001; aOR = 0.063; 95%CI: 0.017-0.229). CONCLUSION Compared to HUU, the vulnerability of HEU is driven by KIR2DL1, indicating the protective role of this KIR against infection and hospitalizations.
Collapse
Affiliation(s)
- Luc-Aimé Kagoué Simeni
- Department of Medical Laboratory Sciences, Faculty of Health Sciences, University of Buéa, Buéa, Cameroon.
- American Association of Microbiology (ASM), ASM Cameroon, Bangangté, Cameroon.
| | | | - Clauvis Kunkeng Yengo
- Department of Biochemistry, Faculty of Sciences, University of Yaoundé I, Yaoundé, Cameroon
| | - Rodrigue Kamga Wouambo
- American Association of Microbiology (ASM), ASM Cameroon, Bangangté, Cameroon
- Division of Hepatology, Leipzig University Medical Centre, Leipzig, Germany
| | - Janett Fischer
- Division of Hepatology, Leipzig University Medical Centre, Leipzig, Germany
| | | | - Joseph Fokam
- Department of Medical Laboratory Sciences, Faculty of Health Sciences, University of Buéa, Buéa, Cameroon
- Virology Laboratory, Chantal BIYA International Reference Centre for Research on HIV/AIDS Prevention and Management, Yaoundé, Cameroon
| | | | | |
Collapse
|
2
|
Al Hadra B, Lukanov T, Mihaylova A, Naumova E. High-resolution characterization of KIR genes polymorphism in healthy subjects from the Bulgarian population-A pilot study. HLA 2024; 103:e15341. [PMID: 38180282 DOI: 10.1111/tan.15341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 12/14/2023] [Accepted: 12/23/2023] [Indexed: 01/06/2024]
Abstract
Although killer-cell immunoglobulin-like receptor (KIR) gene content has been widely studied in health and disease, with the advancement of next-generation sequencing (NGS) technology the high-resolution characterization of this complex gene region has become achievable. KIR allele-level diversity has lately been described across human populations. The present study aimed to analyze for the first time the allele-level polymorphism of nine KIR genes in 155 healthy, unrelated individuals from the Bulgarian population by applying NGS. The highest degree of polymorphism was detected for the KIR3DL3 gene with 40 observed alleles at five-digit resolution in total, 22 of which were common. On the other hand, the KIR3DS1 gene was found to have the lowest degree of polymorphism among the studied KIR genes with one common allele: KIR3DS1*01301 (31.6%). To better understand KIR allelic associations and patterns in Bulgarians, we have estimated the pairwise linkage disequilibrium (LD) for the 10 KIR loci, where KIR2DL3*00501 allele was found in strong LD with KIR2DL1*00101 (D' = 1.00, R2 = 0.742). This is the first study investigating KIR polymorphism at the allele level in a population from the South-East European region. Considering the effect of the populationally shaped KIR allelic polymorphism on NK cell function, this data could lead to a better understanding of the genetic heterogeneity of this region and can be carried into clinical practice by improvement of the strategies taken for NK-mediated diseases.
Collapse
Affiliation(s)
- Bushra Al Hadra
- Clinic of Clinical Immunology and Stem Cell Bank, Alexandrovska University Hospital, Sofia, Bulgaria
- Department of Clinical Immunology, Medical University, Sofia, Bulgaria
| | - Tsvetelin Lukanov
- Clinic of Clinical Immunology and Stem Cell Bank, Alexandrovska University Hospital, Sofia, Bulgaria
- Department of Clinical Immunology, Medical University, Sofia, Bulgaria
| | - Anastasiya Mihaylova
- Clinic of Clinical Immunology and Stem Cell Bank, Alexandrovska University Hospital, Sofia, Bulgaria
| | - Elissaveta Naumova
- Clinic of Clinical Immunology and Stem Cell Bank, Alexandrovska University Hospital, Sofia, Bulgaria
| |
Collapse
|
3
|
Perce-da-Silva DDS, Joaquim TE, Aleixo ALQDC, Motta JPR, Lima-Junior JDC, Ribeiro-Alves M, de Oliveira-Ferreira J, Porto LCDMS, Banic DM, Amendoeira MRR. Influence of killer immunoglobulin-like receptors genes on the recurrence rate of ocular toxoplasmosis in Brazil. Mem Inst Oswaldo Cruz 2023; 118:e220203. [PMID: 37018796 PMCID: PMC10065411 DOI: 10.1590/0074-02760220203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 02/14/2023] [Indexed: 04/03/2023] Open
Abstract
BACKGROUND Recurrence is a hallmark of ocular toxoplasmosis (OT), and conditions that influence its occurrence remain a challenge. Natural killer cells (NK) are effectors cells whose primary is cytotoxic function against many parasites, including Toxoplasma gondii. Among the NK cell receptors, immunoglobulin-like receptors (KIR) deserve attention due to their high polymorphism. OBJECTIVES This study aimed to analyse the influence of KIR gene polymorphism in the course of OT infection and its association with recurrences after an active episode. METHODS Ninety-six patients from the Ophthalmologic Clinic of the National Institute of Infectology Evandro Chagas were followed for up to five years. After DNA extraction, genotyping of the patients was performed by polymerase chain reaction sequence-specific oligonucleotide (PCR-SSO) utilising Luminex equipment for reading. During follow-up, 60.4% had a recurrence. FINDINGS We identified 25 KIR genotypes and found a higher frequency of genotype 1 (31.7%) with worldwide distribution. We note that the KIR2DL2 inhibitor gene and the gene activator KIR2DS2 were more frequent in patients without recurrence. Additionally, we observed that individuals who carry these genes progressed recurrence episodes slowly compared to individuals who do not carry these genes. MAIN CONCLUSIONS The KIR2DL2 and KIR2DS2 are associated as possible protection markers against ocular toxoplasmosis recurrence (OTR).
Collapse
Affiliation(s)
- Daiana de Souza Perce-da-Silva
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Imunologia Clínica, Rio de Janeiro, RJ, Brasil
- Centro Universitário Arthur Sá Earp Neto, Faculdade de Medicina de Petrópolis, Laboratório de Imunologia Básica e Aplicada, Petrópolis, RJ, Brasil
- + Corresponding authors: /
| | - Thays Euzebio Joaquim
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Toxoplasmose e outras Protozooses, Rio de Janeiro, RJ, Brasil
| | - Ana Luisa Quintella do Couto Aleixo
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia Evandro Chagas, Laboratório de Pesquisa Clínica em Oftalmologia Infecciosa, Rio de Janeiro, RJ, Brasil
| | | | - Josué da Costa Lima-Junior
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Imunoparasitologia, Rio de Janeiro, RJ, Brasil
| | - Marcelo Ribeiro-Alves
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia Evandro Chagas, Centro de Pesquisa Clínica HIV/AIDS, Rio de Janeiro, RJ, Brasil
| | - Joseli de Oliveira-Ferreira
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Imunoparasitologia, Rio de Janeiro, RJ, Brasil
| | | | - Dalma Maria Banic
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Imunologia Clínica, Rio de Janeiro, RJ, Brasil
| | - Maria Regina Reis Amendoeira
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Toxoplasmose e outras Protozooses, Rio de Janeiro, RJ, Brasil
- + Corresponding authors: /
| |
Collapse
|
4
|
Dornburg A, Mallik R, Wang Z, Bernal MA, Thompson B, Bruford EA, Nebert DW, Vasiliou V, Yohe LR, Yoder JA, Townsend JP. Placing human gene families into their evolutionary context. Hum Genomics 2022; 16:56. [PMID: 36369063 PMCID: PMC9652883 DOI: 10.1186/s40246-022-00429-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/12/2022] [Indexed: 11/13/2022] Open
Abstract
Following the draft sequence of the first human genome over 20 years ago, we have achieved unprecedented insights into the rules governing its evolution, often with direct translational relevance to specific diseases. However, staggering sequence complexity has also challenged the development of a more comprehensive understanding of human genome biology. In this context, interspecific genomic studies between humans and other animals have played a critical role in our efforts to decode human gene families. In this review, we focus on how the rapid surge of genome sequencing of both model and non-model organisms now provides a broader comparative framework poised to empower novel discoveries. We begin with a general overview of how comparative approaches are essential for understanding gene family evolution in the human genome, followed by a discussion of analyses of gene expression. We show how homology can provide insights into the genes and gene families associated with immune response, cancer biology, vision, chemosensation, and metabolism, by revealing similarity in processes among distant species. We then explain methodological tools that provide critical advances and show the limitations of common approaches. We conclude with a discussion of how these investigations position us to gain fundamental insights into the evolution of gene families among living organisms in general. We hope that our review catalyzes additional excitement and research on the emerging field of comparative genomics, while aiding the placement of the human genome into its existentially evolutionary context.
Collapse
Affiliation(s)
- Alex Dornburg
- Department of Bioinformatics and Genomics, UNC-Charlotte, Charlotte, NC, USA.
| | - Rittika Mallik
- Department of Bioinformatics and Genomics, UNC-Charlotte, Charlotte, NC, USA
| | - Zheng Wang
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - Moisés A Bernal
- Department of Biological Sciences, College of Science and Mathematics, Auburn University, Auburn, AL, USA
| | - Brian Thompson
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
| | - Elspeth A Bruford
- Department of Haematology, University of Cambridge School of Clinical Medicine, Cambridge, UK
- European Molecular Biology Laboratory, European Bioinformatics Institute, Hinxton, UK
| | - Daniel W Nebert
- Department of Environmental Health, Center for Environmental Genetics, University of Cincinnati Medical Center, P.O. Box 670056, Cincinnati, OH, 45267, USA
- Department of Pediatrics and Molecular Developmental Biology, Division of Human Genetics, Cincinnati Children's Hospital, Cincinnati, OH, 45229, USA
| | - Vasilis Vasiliou
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
| | - Laurel R Yohe
- Department of Bioinformatics and Genomics, UNC-Charlotte, Charlotte, NC, USA
| | - Jeffrey A Yoder
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Jeffrey P Townsend
- Department of Bioinformatics and Genomics, UNC-Charlotte, Charlotte, NC, USA
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA
| |
Collapse
|
5
|
KIR2DL2, KIR2DL5A and KIR2DL5B Genes Induce Susceptibility to Dengue Virus Infection, while KIR3DL3 and KIR2DS5 Confer Protection. Mediterr J Hematol Infect Dis 2022; 14:e2022075. [PMID: 36425145 PMCID: PMC9652005 DOI: 10.4084/mjhid.2022.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 10/13/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Dengue fever (DF), an emerging and re-emerging viral disease, is a major public health problem. The aim of this study was to investigate the influence of KIRs genes polymorphism and KIRs genotypes in susceptibility to dengue virus infection and disease severity in a population from Burkina Faso through a case-control study. METHODS KIRs genes determination was performed using PCR-SSP in 50 patients infected by dengue virus (DENV) and 54 Healthy controls (HC) subjects who had never been infected. RESULTS Data analysis showed significant association between frequencies of three KIR genes and dengue virus infection (DF): KIR2DL2 (OR: 7.32; IC: 2.87-18.65; P < 0.001); KIR2DL5A (OR: 15.00, IC: 5.68-39.59; P < 0.001) and KIR2DL5B (OR: 11.43; IC: 4.42-29; P < 0.001). While, KIR3DL3 (OR: 0.13, IC: 0.052-0.32; P < 0.001) and KIR2DS5 (OR: 0.12; IC: 0.04-0.30; P < 0.001) were associated with protection against DF. KIR2DL4 (OR: 9.75; IC95%: 1.33-70.97; p: 0.03) and KIRD3DL1 (OR: 12.00; IC95%: 1.60-90.13; p: 0.02) were associated with an increased risk in the development of secondary dengue infection (SDI). CONCLUSION The results suggest a contribution of KIR2DL2, KIR2DL5A, and KIR2DL5B genes in the susceptibility of DF development. In contrast, KIR3DL3 and KIR2DS5 were associated with protection against DF development by enhancing both innate and acquired immune responses.
Collapse
|
6
|
Alexandrova M, Manchorova D, Dimova T. Immunity at maternal-fetal interface: KIR/HLA (Allo)recognition. Immunol Rev 2022; 308:55-76. [PMID: 35610960 DOI: 10.1111/imr.13087] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 04/28/2022] [Accepted: 05/09/2022] [Indexed: 12/15/2022]
Abstract
Both KIR and HLA are the most variable gene families in the human genome. The recognition of the semi-allogeneic embryo-derived trophoblasts by maternal decidual NK (dNK) cells is essential for the establishment of the functional placenta. This recognition is based on the KIR-HLA interactions and trophoblast expresses a specific HLA profile that constitutes classical polymorphic HLA-C and non-classical oligomorphic HLA-E, HLA-F, and HLA-G molecules. This review highlights some features of the KIR/HLA-C (allo)recognition by decidual NK (dNK) cells as a main immune cell population specifically enriched at maternal-fetal interface during human early pregnancy. How KIR/HLA-C axis operates in pregnancy disorders and in the context of transplacental infections is discussed as well. We summarized old and new data on dNK-cell functional plasticity, their selective expression of KIR and fetal maternal/paternal HLA-C haplotypes present. Results showed that KIR-HLA-C combinations and the corresponding axis operate differently in each pregnancy, determined by the variability of both maternal KIR haplotypes and fetus' maternal/paternal HLA-C allotype combinations. Moreover, the maturation of NK cells strongly depends on if or not HLA allotypes for certain KIR are present. We suggest that the unique KIR/HLA combinations reached in each pregnancy (normal and pathological) should be studied according to well-defined guidelines and unified methodologies to have comparable results ease to interpret and use in clinics.
Collapse
Affiliation(s)
- Marina Alexandrova
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Diana Manchorova
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Tanya Dimova
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
| |
Collapse
|
7
|
Lallogo TD, Djigma FW, Sorgho PA, Martinson JJ, Rebeca Compaore T, Traore L, Bado P, Bapio Valérie Elvira Jean Télesphore Bazie, Amegnona LJ, Kagone TS, Alice Ouedraogo R, Ilboudo DP, Obiri-Yeboah D, Yonli AT, Simpore J. KIR2DL5B and HLA DRB1*12 alleles seems to be associated with protection against HIV-1 in serodiscordant couples in Burkina Faso. J Med Virol 2022; 94:4425-4432. [PMID: 35501290 DOI: 10.1002/jmv.27821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 11/05/2022]
Abstract
INTRODUCTION The Human Immunodeficiency Virus (HIV) belongs to the Retroviridae family and remains a public health problem in sub-Saharan Africa. Recent reports from WHO have shown that 33 million people died from HIV infections. HIV is one of the most serious fatal human diseases of the 20th and 21st centuries. However, variations in genetic and immunological factors are associated with protection against HIV infection in uninfected people exposed to HIV. This is the case with Naturals Killers which play an important role in the progression or regression of HIV infection. The objective of this study is to characterize certain HLA (Human Leukocyte Antigen) class II genes and KIR genes in HIV-1 serodiscordant couples in Burkina Faso. METHODS This study was carried out at Burkina Faso among nineteen (19) HIV-1 serodiscordant couples. Classical multiplex PCR (SSP-PCR) was used to characterize the presence or absence of the KIR genes and certain class II HLAs (DRB1*11 and DRB1*12). RESULTS The characterization of the KIR and HLA genes DRB1*11, DRB1*12 in this study demonstrated that the inhibitor KIR2DL5B, would confer protection against HIV-1 infection in seronegative partners [OR = 0.13 (0.02-0.72) and p = 0.029)], and the HLA DRB1*12 allele was associated with protection against HIV-1 infection in seronegative partners [OR = 0.16 (0.03-0.77) and p = 0.038]. AA and Bx haplotypes were not found to be associated with HIV-1 infection in serodiscordant couples. CONCLUSION This study confirms the involvement of the KIR genes in viral pathologies such as HIV-1 infection. Future larger-scale studies may provide a better understanding of the molecular mechanism by which the KIR Haplotype and combination of KIR/HLA are associated with protection against HIV infection. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Tatiana Doriane Lallogo
- Molecular Biology and Genetics Laboratory (LABIOGENE), Department of Biochemistry and Microbiology, University Joseph KI-ZERBO, PO Box 7021, Ouagadougou, 03, Burkina Faso
| | - Florencia W Djigma
- Molecular Biology and Genetics Laboratory (LABIOGENE), Department of Biochemistry and Microbiology, University Joseph KI-ZERBO, PO Box 7021, Ouagadougou, 03, Burkina Faso.,Pietro Annigoni Biomolecular Research Center (CERBA), PO Box 364, Ouagadougou, 01, Burkina Faso
| | - Pegdwendé Abel Sorgho
- Pietro Annigoni Biomolecular Research Center (CERBA), PO Box 364, Ouagadougou, 01, Burkina Faso
| | - Jeremy James Martinson
- Laboratory of Infectious Diseases/Microbiology, University of Pittsburgh, Pittsburgh, USA
| | - T Rebeca Compaore
- Institute for Research in Health Sciences, IRSS, Ouagadougou, Burkina Faso
| | - Lassina Traore
- Molecular Biology and Genetics Laboratory (LABIOGENE), Department of Biochemistry and Microbiology, University Joseph KI-ZERBO, PO Box 7021, Ouagadougou, 03, Burkina Faso
| | - Prosper Bado
- Molecular Biology and Genetics Laboratory (LABIOGENE), Department of Biochemistry and Microbiology, University Joseph KI-ZERBO, PO Box 7021, Ouagadougou, 03, Burkina Faso
| | | | - Lanyo Jospin Amegnona
- Molecular Biology and Genetics Laboratory (LABIOGENE), Department of Biochemistry and Microbiology, University Joseph KI-ZERBO, PO Box 7021, Ouagadougou, 03, Burkina Faso
| | - Thérèse S Kagone
- National Institute of Public Health, Center Muraz, 01 BP 390 Bobo-Dioulasso 01, Burkina Faso
| | - R Alice Ouedraogo
- Molecular Biology and Genetics Laboratory (LABIOGENE), Department of Biochemistry and Microbiology, University Joseph KI-ZERBO, PO Box 7021, Ouagadougou, 03, Burkina Faso
| | | | - Dorcas Obiri-Yeboah
- Department of Microbiology and Immunology, School of Medical Sciences, University of Cape Coast, PMB, Cape Coast, Ghana
| | - Albert Théophane Yonli
- Molecular Biology and Genetics Laboratory (LABIOGENE), Department of Biochemistry and Microbiology, University Joseph KI-ZERBO, PO Box 7021, Ouagadougou, 03, Burkina Faso.,Pietro Annigoni Biomolecular Research Center (CERBA), PO Box 364, Ouagadougou, 01, Burkina Faso
| | - Jacques Simpore
- Molecular Biology and Genetics Laboratory (LABIOGENE), Department of Biochemistry and Microbiology, University Joseph KI-ZERBO, PO Box 7021, Ouagadougou, 03, Burkina Faso.,Pietro Annigoni Biomolecular Research Center (CERBA), PO Box 364, Ouagadougou, 01, Burkina Faso
| |
Collapse
|
8
|
Hajeer A, Jawdat D, Massadeh S, Aljawini N, Abedalthagafi MS, Arabi YM, Alaamery M. Association of KIR gene polymorphisms with COVID-19 disease. Clin Immunol 2022; 234:108911. [PMID: 34929414 PMCID: PMC8683215 DOI: 10.1016/j.clim.2021.108911] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/08/2021] [Accepted: 12/15/2021] [Indexed: 12/18/2022]
Abstract
Background Methods Results Conclusions
Collapse
|
9
|
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.
Collapse
|
10
|
Dizaji Asl K, Velaei K, Rafat A, Tayefi Nasrabadi H, Movassaghpour AA, Mahdavi M, Nozad Charoudeh H. The role of KIR positive NK cells in diseases and its importance in clinical intervention. Int Immunopharmacol 2021; 92:107361. [PMID: 33429335 DOI: 10.1016/j.intimp.2020.107361] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/14/2020] [Accepted: 12/28/2020] [Indexed: 12/20/2022]
Abstract
Natural killer (NK) cells are essential for the elimination of the transformed and cancerous cells. Killer cell immunoglobulin-like receptors (KIRs) which expressed by T and NK cells, are key regulator of NK cell function. The KIR and their ligands, MHC class I (HLA-A, B and C) molecules, are highly polymorphic and their related genes are located on 19 q13.4 and 6 q21.3 chromosomes, respectively. It is clear that particular interaction between the KIRs and their related ligands can influence on the prevalence, progression and outcome of several diseases, like complications of pregnancy, viral infection, autoimmune diseases, and hematological malignancies. The mechanisms of immune signaling in particular NK cells involvement in causing pathological conditions are not completely understood yet. Therefore, better understanding of the molecular mechanism of KIR-MHC class I interaction could facilitate the treatment strategy of diseases. The present review focused on the main characteristics and functional details of various KIR and their combination with related ligands in diseases and also highlights ongoing efforts to manipulate the key checkpoints in NK cell-based immunotherapy.
Collapse
Affiliation(s)
- Khadijeh Dizaji Asl
- Stem Cell Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kobra Velaei
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Rafat
- Stem Cell Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Tayefi Nasrabadi
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Akbar Movassaghpour
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Majid Mahdavi
- Department of Biology, Faculty of Natural Science, University of Tabriz, Tabriz, Iran
| | | |
Collapse
|