Academic literature on the topic 'Killer immunoglobulin-like receptor (KIR)'

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Journal articles on the topic "Killer immunoglobulin-like receptor (KIR)"

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Harvey, D., J. J. Pointon, C. Sleator, A. Meenagh, C. Farrar, J. Y. Sun, D. Senitzer, D. Middleton, M. A. Brown, and B. P. Wordsworth. "Analysis of killer immunoglobulin-like receptor genes in ankylosing spondylitis." Annals of the Rheumatic Diseases 68, no. 4 (November 19, 2008): 595–98. http://dx.doi.org/10.1136/ard.2008.095927.

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Objectives:To assess the possible association of killer immunoglobulin-like receptor (KIR) genes, specifically KIR3DL1, KIR3DS1 and KIR3DL2, with ankylosing spondylitis (AS).Methods:14 KIR genes were genotyped in 200 UK patients with AS and 405 healthy controls using multiplex polymerase chain reaction. Sequence-specific oligonucleotide probes were used to subtype 368 cases with AS and 366 controls for 12 KIR3DL2 alleles. Differences in KIR genotypes and KIR3DL2 allele frequencies were assessed using the χ2 test.Results:KIR3DL1 and KIR3DS1 gene frequencies were very similar in cases with AS and controls (odds ratio = 1.5, 95% confidence interval 0.8 to 3.0, and odds ratio = 1.02, 95% confidence interval 0.2 to 5.3, respectively). KIR3DL2 allele frequencies were not significantly different between cases with AS and controls.Conclusions:Neither the KIR gene content of particular KIR haplotypes nor KIR3DL2 polymorphisms contribute to AS.
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Treanor, Bebhinn, Peter M. P. Lanigan, Sunil Kumar, Chris Dunsby, Ian Munro, Egidijus Auksorius, Fiona J. Culley, et al. "Microclusters of inhibitory killer immunoglobulin–like receptor signaling at natural killer cell immunological synapses." Journal of Cell Biology 174, no. 1 (June 26, 2006): 153–61. http://dx.doi.org/10.1083/jcb.200601108.

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We report the supramolecular organization of killer Ig–like receptor (KIR) phosphorylation using a technique applicable to imaging phosphorylation of any green fluorescent protein–tagged receptor at an intercellular contact or immune synapse. Specifically, we use fluorescence lifetime imaging (FLIM) to report Förster resonance energy transfer (FRET) between GFP-tagged KIR2DL1 and a Cy3-tagged generic anti-phosphotyrosine monoclonal antibody. Visualization of KIR phosphorylation in natural killer (NK) cells contacting target cells expressing cognate major histocompatibility complex class I proteins revealed that inhibitory signaling is spatially restricted to the immune synapse. This explains how NK cells respond appropriately when simultaneously surveying susceptible and resistant target cells. More surprising, phosphorylated KIR was confined to microclusters within the aggregate of KIR, contrary to an expected homogeneous distribution of KIR signaling across the immune synapse. Also, yellow fluorescent protein–tagged Lck, a kinase important for KIR phosphorylation, accumulated in a multifocal distribution at inhibitory synapses. Spatial confinement of receptor phosphorylation within the immune synapse may be critical to how activating and inhibitory signals are integrated in NK cells.
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Castrillon, Marlon, Nancy D. Marin, Amado J. Karduss-Urueta, Sonia Y. Velasquez, and Cristiam M. Alvarez. "Killer-Cell Immunoglobulin-like Receptor Diversity in an Admixed South American Population." Cells 11, no. 18 (September 6, 2022): 2776. http://dx.doi.org/10.3390/cells11182776.

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Natural Killer (NK) cells are innate immune cells that mediate antiviral and antitumor responses. NK cell activation and induction of effector functions are tightly regulated by the integration of activating and inhibitory receptors such as killer immunoglobulin-like receptors (KIR). KIR genes are characterized by a high degree of diversity due to presence or absence, gene copy number and allelic polymorphism. The aim of this study was to establish the distribution of KIR genes and genotypes, to infer the most common haplotypes in an admixed Colombian population and to compare these KIR gene frequencies with some Central and South American populations and worldwide. A total of 161 individuals from Medellin, Colombia were included in the study. Genomic DNA was used for KIR and HLA genotyping. We analyzed only KIR gene-content (presence or absence) based on PCR-SSO. The KIR genotype, most common haplotypes and combinations of KIR and HLA ligands frequencies were estimated according to the presence or absence of KIR and HLA genes. Dendrograms, principal component (PC) analysis and Heatmap analysis based on genetic distance were constructed to compare KIR gene frequencies among Central and South American, worldwide and Amerindian populations. The 16 KIR genes analyzed were distributed in 37 different genotypes and the 7 most frequent KIR inferred haplotypes. Importantly, we found three new genotypes not previously reported in any other ethnic group. Our genetic distance, PC and Heatmap analysis revealed marked differences in the distribution of KIR gene frequencies in the Medellin population compared to worldwide populations. These differences occurred mainly in the activating KIR isoforms, which are more frequent in our population, particularly KIR3DS1. Finally, we observed unique structural patterns of genotypes, which evidences the potential diversity and variability of this gene family in our population, and the need for exhaustive genetic studies to expand our understanding of the KIR gene complex in Colombian populations.
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Diaz-Peña, Roberto, Patricia Mondelo-Macía, Antonio José Molina de la Torre, Rebeca Sanz-Pamplona, Víctor Moreno, and Vicente Martín. "Analysis of Killer Immunoglobulin-Like Receptor Genes in Colorectal Cancer." Cells 9, no. 2 (February 24, 2020): 514. http://dx.doi.org/10.3390/cells9020514.

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Natural killer cells (NK cells) play a major role in the immune response to cancer. An important element of NK target recognition is the binding of human leucocyte antigen (HLA) class I molecules by killer immunoglobulin-like receptors (KIRs). Colorectal carcinoma (CRC) is one of the most common types of inflammation-based cancer. The purpose of the present study was to investigate the presence of KIR genes and HLA class I and II alleles in 1074 CRC patients and 1272 controls. We imputed data from single-nucleotide polymorphism (SNP) Illumina OncoArray to identify associations at HLA (HLA–A, B, C, DPB1, DQA1, DQB1, and DRB1) and KIRs (HIBAG and KIR*IMP, respectively). For association analysis, we used PLINK (v1.9), the PyHLA software, and R version 3.4.0. Only three SNP markers showed suggestive associations (p < 10−3; rs16896742, rs28367832, and rs9277952). The frequency of KIR2DS3 was significantly increased in the CRC patients compared to healthy controls (p < 0.005). Our results suggest that the implication of NK cells in CRC may not act through allele combinations in KIR and HLA genes. Much larger studies in ethnically homogeneous populations are needed to rule out the possible role of allelic combinations in KIR and HLA genes in CRC risk.
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Jelčić, Ilijas, Katharine C. Hsu, Kristina Kakalacheva, Petra Breiden, Bo Dupont, Markus Uhrberg, Roland Martin, Christian Münz, and Jan D. Lünemann. "Killer immunoglobulin-like receptor locus polymorphisms in multiple sclerosis." Multiple Sclerosis Journal 18, no. 7 (December 20, 2011): 951–58. http://dx.doi.org/10.1177/1352458511431726.

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Objective: The objective of this study was to analyze whether inhibitory and activating killer cell immunoglobulin-like receptors (KIRs) and human leukocyte antigen (HLA) class I alleles defined by their KIR binding motifs are associated with multiple sclerosis (MS) susceptibility or severity. Method: We performed a population-based case–control study in 321 patients with clinically isolated syndrome (CIS) and clinically definite MS (CDMS) and 156 healthy blood donors (HD). Inhibitory and activating KIRs and HLA class I alleles were genotyped using polymerase chain reaction (PCR) sequence-specific primers. Allelic frequencies were correlated with prevalence, age of onset, disability and disease duration of CIS and CDMS. Results: The frequency of the inhibitory KIR2DL3 gene was significantly reduced in patients with CIS and CDMS ( p = 3.1 × 10−5). KIR2DL3-dependent risk reduction remained significant after elimination of patients carrying MS-associated DRB1*15, DRB1*03, DRB1*01 alleles. In addition, individuals carrying two copies for KIR2DL2/KIR2DS2 but lacking KIR2DL3 were overrepresented in the CIS/CDMS cohort. However, both genes did not affect disease risk in presence of KIR2DL3. We did not detect any association between the presence or absence of KIR genes with clinical disease parameters. Conclusion: Absence of the inhibitory KIR2DL3 gene is associated with the development of CIS/CDMS. These findings, if confirmed in larger cohorts, suggest that KIR-mediated recognition of HLA class I molecules should be further explored as potential disease mechanism in MS.
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Marsh, S. G. E., P. Parham, B. Dupont, D. E. Geraghty, J. Trowsdale, D. Middleton, C. Vilches, et al. "Killer-cell immunoglobulin-like receptor (KIR) nomenclature report, 2002." Tissue Antigens 62, no. 1 (July 2003): 79–86. http://dx.doi.org/10.1034/j.1399-0039.2003.00072.x.

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Marsh, S. G. E., P. Parham, B. Dupont, D. E. Geraghty, J. Trowsdale, D. Middleton, C. Vilches, et al. "Killer-cell immunoglobulin-like receptor (KIR) nomenclature report, 2002." European Journal of Immunogenetics 30, no. 3 (June 2003): 229–34. http://dx.doi.org/10.1046/j.1365-2370.2003.00383.x.

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Marsh, Steven G. E., Peter Parham, Bo Dupont, Daniel E. Geraghty, John Trowsdale, Derek Middleton, Carlos Vilches, et al. "Killer-cell Immunoglobulin-like Receptor (KIR) Nomenclature Report, 2002." Human Immunology 64, no. 6 (June 2003): 648–54. http://dx.doi.org/10.1016/s0198-8859(03)00067-3.

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Marsh, Steven G. E., Peter Parham, Bo Dupont, Daniel E. Geraghty, John Trowsdale, Derek Middleton, Carlos Vilches, et al. "Killer-cell immunoglobulin-like receptor (KIR) nomenclature report, 2002." Immunogenetics 55, no. 4 (July 1, 2003): 220–26. http://dx.doi.org/10.1007/s00251-003-0571-z.

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Cremer, Anja, Ute Heider, Stefan Tomiuk, Andreas Arendt, Jurgen Schmitz, Andreas Bosio, Volker Huppert, and Christian Biervert. "Integrated Genotyping and mRNA Expression Profiling of Killer Immunoglobulin-Like Receptors." Blood 106, no. 11 (November 16, 2005): 3909. http://dx.doi.org/10.1182/blood.v106.11.3909.3909.

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Abstract Natural killer (NK) cells belong to a subgroup of lymphocytes (CD3-CD56+) which play an important role in the cellular immune response against virus-infected cells and tumors. The activity of NK cells is regulated by a balance of triggering and inhibitory receptors, including Killer Ig-like Receptor (KIR) molecules which interact with specific HLA class I molecules, predominantly HLA-C, on target cells. The 17 known KIR genes are divided into two classes: activating KIRs and inhibitory KIRs. There is strong evidence that inhibitory KIR mismatch between donor and recipient improves the outcome of haploidentical hematopoietic stem cell transplantation (HSTC) in leukemia patients (Ruggeri et al. 2002). In addition, the KIR-HLA constellation is assumed to have an influence on the severity of graft versus host disease (GvHD). Whether these activities of NK cells are clinically important and to what extent these processes are mediated only by KIR-HLA class I interactions remains to be determined. In human populations, KIR gene haplotypes vary in the number and type of KIR genes they contain. Further diversification is observed by expanded allelic polymorphism at the individual genes. In general, KIR haplotypes contain 7–12 genes plus 2 pseudogenes. Extra KIR heterogeneity is provided at the expression level: different subsets of NK cells within an individual express different KIRs. Recently, it was shown that KIR genotyping alone does not seem to be sufficient for donor KIR assessment because of the lack of gene expression in approximately one-fourth of the individuals for one of the inhibitory KIRs that recognize the three major groups of MHC class I ligands (Leung et al. 2005). KIR phenotyping by flow cytometry using monoclonal antibodies is insufficient due to the lack of specific monoclonal antibodies. For trustworthy analysis, one has to combine KIR genotyping with mRNA expression profiling and flow cytometry. Therefore, we developed a new set of sequence-specific primers (SSP). This primer set can be applied to perform either KIR genotyping or mRNA expression profiling despite the high degree of identity of the genes (80–90%, sometimes more than 95%). The primers of each KIR gene (15 genes and 2 pseudogenes) cover all allelic variants annotated by the IPD KIR Sequence Data Base (status quo July 05). Using this primer set, we genotyped 25 individuals, and compared the results with other sets of KIR primers published elsewhere. Additionally, we show the mRNA expression profile employing the same set of new primers. We confirmed these results on the protein level by flow cytometry.
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Dissertations / Theses on the topic "Killer immunoglobulin-like receptor (KIR)"

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Braun, Kali. "Association of killer immunoglobulin-like receptor (KIR) genes with tuberculosis disease in two Canadian cohorts." PLoS ONE, 2013. http://hdl.handle.net/1993/22042.

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In Canada, and more specifically in Canadian-born Aboriginals and foreign born populations, high incidence of tuberculosis (TB) causes significant morbidity and mortality. The presence or absence of specific killer immunoglobulin-like receptor (KIR) genes, individually or in conjunction, may be associated with tuberculosis (active, latent, or uninfected disease status) as well as ethnicity of an individual. It is hypothesized that the differences in KIR profiles, gene frequencies, and/or haplotypes in Canadian-born Aboriginal, Canadian-born non-Aboriginal, and foreign born individuals elicits a differential activation or inhibition profile, resulting in differential cytokine expression and eventually contributes to the outcome of TB infection. In this study we examined the enrichment or depletion of KIR genes in different ethnic populations in Manitoba with special focus on active, latent, and uninfected TB status. In addition, we sought to explore the statistical correlation between TB status and inhibitory/stimulatory KIR haplotypes.
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Sepulveda, Christian Alberto Garcia. "Killer cell Immunoglobulin-like Receptor (KIR) polymorphism : functional implications and clinical relevance." Thesis, University College London (University of London), 2005. http://discovery.ucl.ac.uk/1444690/.

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NK cell function is regulated by Killer-cell Immunoglobulin-like Receptors (KIR) some of which recognise class I Major Histocompatibility Complex molecules. KIRs have been shown to exhibit a high degree of functional diversity which is generated at several levels. However, the functional relevance of this diversity remains largely unknown. This thesis describes our approach towards elucidating the functional relevance of KIR diversity. To study this we first compiled all known KIR sequences into a database. We developed bioinformatics tools to facilitate the study of these sequences and have made both the tools and database publicly accessible online. Subsequent efforts were directed towards investigating the structural impact of KIR polymorphism by means of molecular modelling software. The results that were generated by this approach have provided information with regards to the ligand binding properties of most activating KIR proteins. In addition, we have also developed a KIR gene typing system capable of detecting all known KIR genes as well as the alleles of five of the KIR proteins for which a ligand has been described. We have implemented this KIR typing system to three different sample panels: a reference panel of more than 100 B-lymphoblastoid cell lines (BLCL), a family based KIR haplotype segregation study and a cohort of 141 unrelated donor (UD) haematopoietic stem cell transplant pairs. Our investigations have allowed us to generate the largest KIR typing reference panel, to characterise the KIR profile of a Mexican Mestizo population and to investigate the clinical relevance of KIRs in UD-Haematopoietic Stem Cell Transplantation (HSCT). Our results demonstrate that the beneficial effect of NK alloreactivity in the Graft-versus-Host direction as predicted by Ruggeri's algorithm cannot be applied to the UD-HSCT setting. In addition, I describe our findings relating to the clinical role of KIR genes and alleles in the UD-HSCT cohort.
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Halfpenny, Iris A. "An investigation into the genetics of the killer immunoglobulin-like receptor (KIR) gene family." Thesis, University of Ulster, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494359.

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Yindom, Louis Marie. "Human Leukocyte Antigen (HLA) and Killer Immunoglobulin-like Receptors (KIR) in HIV-2 Infection." Thesis, Open University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520671.

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Ishida, Yoshihiro. "Killer immunoglobulin-like receptor genotype did not correlate with response to anti-PD-1 antibody treatment in a Japanese cohort." Kyoto University, 2020. http://hdl.handle.net/2433/253207.

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Salim, Patrícia Hartstein. "Estudo do polimorfismo dos genes KIR na esclerose sistêmica." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/15457.

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As células Natural Killer (NK) fazem parte da resposta imune inata, sendo a primeira linha de defesa do organismo contra vírus, bactérias, tumores e microorganismos. Estas células induzem a morte da célula-alvo quando não há o reconhecimento das moléculas de antígenos leucocitários humanos (HLA) de classe I, através de seus receptores, chamados Killer cell Immunoglobulin-like Receptor (KIR). Vários estudos demonstram o envolvimento dos genes KIR na patogênese das doenças auto-imunes. Acredita-se que combinações desses genes possam ser favoráveis para o desenvolvimento da esclerose sistêmica (ES). Portanto, o conhecimento destes genes relacionados às células NK poderiam ser úteis para o entendimento da patogênese da ES. O objetivo deste estudo é investigar o polimorfismo dos genes KIR em um grupo de pacientes com ES, incluindo a forma difusa e limitada da doença. A freqüência do receptor inibidor KIR2DL2 foi significantemente menor nos pacientes comparada com a do grupo controle (28,7% versus 65,2%; P<0,001; OR=0,21; IC95% 0,11–0,38). Quando analisamos a combinação do receptor inibidor 2DL2, com a presença do ativador 2DS2 (KI2DS2+/KIR2DL2-), encontramos uma maior freqüência nos pacientes (26,1% versus 1,7%; P<0,001; OR=19,94; IC95% 4,7–175,1). Por outro lado, a presença de ambos KIR2DL2 e KIR2DS2 foi mais freqüente no grupo controle (26,9% versus 57,3%; P<0,001; OR=0,27; 95%CI 0,1–0,4). Nenhuma diferença estatística no polimorfismo dos genes KIR foi encontrada entre a forma difusa e a forma limitada. A combinação KIR2DS2+/KIR2DL2– parece ser um fator de risco para o desenvolvimento da ES enquanto a alta freqüência do gene inibidor KIR2DL2 no grupo controle parece ter uma função protetora. Estes resultados indicam um potencial papel dos genes KIR na patogênese da ES.
Natural killer (NK) cells have an important role in the early responses to viral infections. They kill diverse target cells with decreased or absent expression of major histocompatibility complex (MHC) class I molecules through the Killer Cell Immunoglobulin-Like Receptors (KIR). Many studies have reported association of KIR genes with autoimmune diseases. The objective of this study is to investigate possible associations of KIR polymorphisms with systemic sclerosis (SSc), including the limited (lSSc) and diffuse (dSSc) forms of the disease. The frequency of inhibitory KIR2DL2 was significantly decreased among patients with SSc compared with healthy controls (28.7% versus 65.2; P<0.001, odds ratio [OR] 0.21, 95% confidence interval [95% CI] 0.11–0.38). When activatory and inhibitory KIR genes were analyzed in combination, the concomitant presence of KIR2DS2 and absence of KIR2DL2 (KI2DS2+/KIR2DL2-) phenotype was more frequent in SSc patients than in the control group (26.08% versus 1.75%; P<0.001, OR=19.94, 95%CI [4.78–175.10]). On the other hand, the presence of both KIR2DS2 and KIR2DL2 was more frequent in the control group (26.96% versus 57.39%; P=0.000005, OR=0.27, 95%CI [0.15–0.49]). No significant difference in KIR genes polymorphisms was found between lSSc and dSSc disease subsets. The combination of KIR2DS2+/KIR2DL2– may be a risk factor for development of SSc while the higher frequency of the inhibitory KIR2DL2 gene in the control group suggest to a protective effect. These results indicate a potential role of KIR genes in the SSc pathogenesis.
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Silva, Pamela Portela da. "Análise de polimorfismos dos genes KIR e HLA classe I em pacientes com câncer colorretal." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/148088.

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O câncer colorretal (CCR) pode ocorrer em qualquer parte do cólon ou do reto e representa o terceiro câncer mais comum no mundo em ambos os sexos. As células Natural Killer (NK) fazem parte do sistema imune inato reconhecendo moléculas de HLA de classe I em células alvo, através de seus receptores de membrana killer cell immunoglobulin-like receptors (KIR). O objetivo deste estudo foi avaliar a associação entre os genes KIR e os ligantes HLA em pacientes com câncer colorretal e controles saudáveis. Examinamos o polimorfismo de 16 genes KIR e seus ligantes HLA em 154 pacientes caucasóides com CCR e 216 controles saudáveis pela técnica de PCR-SSO e PCR-SSP. Quando comparamos os dois grupos, não foram encontradas diferenças significativas para os ligantes HLA e os genes KIR após correção de Bonferroni. Entretanto, o grupo de genótipos Bx (heterozigoto e homozigoto para o haplótipo B) foi mais frequente nos controles, quando comparados com os pacientes. Estes achados sugerem que altos níveis de ativação de sinais KIR aparecem como proteção para o câncer colorretal.
Colorectal cancer (CRC) can occur anywhere in the colon or rectum and represents the third most common cancer in the world in both sexes. Natural killer cells (NK) are part of the innate immune system recognizing class I HLA molecules on target cells through their membrane receptors, called killer cell immunoglobulin-like receptors (KIR). The aim of our study was to evaluate the association between the KIR genes and HLA ligands in patients with colorectal cancer and healthy controls. We examined the polymorphism of 16 KIR genes and their HLA ligands in 154 caucasoid CRC patients and 216 healthy controls by PCR-SSO and PCR-SSP. When both groups were compared, no significant differences were found for HLA ligands and KIR genes after Bonferroni correction. However, the Bx group genotypes (heterozygous and homozygous for the haplotype B) were more frequent in controls, when compared with patients. These findings suggest that individuals with Bx genotypes could have some protection to colorectal cancer. These findings suggest that higher levels of activating KIR signals appear as protective to colorectal cancer.
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Foley, Bree Amanda. "The immunogenetics of natural killer cell alloreactivity." University of Western Australia. School of Pathology and Laboratory Medicine, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0242.

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[Truncated abstract] Natural killer (NK) cell alloreactivity can be exploited in haploidentical haematopoietic stem cell transplantation (HSCT) to improve graft survival, reduce graft versus host disease and decrease leukaemic relapse. NK cells lyse cells that have reduced expression of class I HLA molecules. In an allogeneic setting, donor NK cells may be activated by the absence of donor (self) class I HLA molecules on recipient cells; the absence of self-epitopes being detected by inhibitory KIR receptors on donor NK cells. The way in which genetic polymorphism of the receptors and ligands affects NK allorecognition of missing self, has not been fully elucidated. HLA-C molecules are divided into two groups, C1 and C2, with KIR2DL1 recognising cells expressing C2 and KIR2DL2 and KIR2DL3 recognising cells expressing C1. Donor NK cells expressing KIR2DL2 or KIR2DL3 can be alloreactive towards a recipient if they lack the C1 epitope and donor NK cells expressing KIR2DL1 can be alloreactive towards a recipient if they lack the C2 epitope. KIR3DL1 recognises the Bw4 epitope present on one-third of HLA-B alleles and certain HLA-A alleles. NK cells from donors expressing KIR3DL1 can be alloreactive towards recipients whose cells lack Bw4. Mismatches of KIR related HLA epitopes does not always results in NK alloreactivity. Therefore it is not possible to reliably predict NK alloreactivity based solely on the donor's HLA type and KIR repertoire and the recipient's HLA type. ... All Bw4-positive HLA-B alleles, with the exception of HLA-B*1301 and B*1302, protected targets from lysis. HLA-A*2402 and HLA-A*3201 unequivocally protected target cells from lysis whereas HLA-A*2501 and HLA-A*2301 provided only weak protection from lysis. KIR3DL1-dependent alloreactive NK clones were identified in donors whose only Bw4 positive allele was HLA-A*2402 but not in donors whose only Bw4 positive HLA allele was HLA-B*1301 or B*1302. Finally this thesis demonstrated that an activating KIR can control NK cell alloreactivity. Donors who are C2 negative and KIR2DS1 positive had NK cells that expressed the activating receptor KIR2DS1 and were capable of lysing cells expressing the C2 epitope. More so, KIR2DS1 dependent NK clones were shown to override inhibitory signals generated by NKG2A interacting with its ligand, HLA-E. The identification of these NK clones has important implications for haploidentical HSCT in that recipient expressing all three NK epitopes, C1, C2 and Bw4 were previously thought to be resistant to alloreactive NK cells controlled by inhibitory receptors. Such patients may be amenable to haploidentical HSCT from C2 negative, KIR2DS1 positive donors. These results will improve the ability to predict NK cell alloreactivity based on a donor's HLA type and KIR repertoire and the recipient?s HLA type.
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Silva, Pamela Portela da. "Estudo de polimorfismos dos genes KIR e HLA em pacientes com câncer de próstata." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/35890.

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O câncer de próstata é o segundo câncer mais comum entre homens, uma vez que tanto a incidência como a mortalidade aumentam exponencialmente após a idade de 50 anos. As células Natural Killer (NK) fazem parte do sistema imune inato e reconhecem moléculas de HLA de classe I na célula alvo, através de seus receptores de membrana, chamados killer immunoglobulin-like-receptors (KIR). O objetivo desse estudo foi avaliar a associação entre os genes KIR e HLA em pacientes com câncer de próstata e grupo controle. Genotipamos 200 pacientes com diagnóstico de câncer de próstata e 185 pacientes saudáveis para os genes KIR e HLA classe I por PCR-SSP. Quando comparados os grupos, não foram encontradas diferenças significativas para HLA-C do grupo 1 e do grupo 2, HLA-Bw4, HLA-A3 e A11. Nenhuma diferença foi observada na frequência dos genes KIR nos pacientes com câncer de próstata e nos controles. Esses resultados sugerem que não há potencial papel para o sistema dos genes KIR no câncer de próstata.
Prostate cancer is the second most common cancer among men, since both incidence and mortality exponentially increases in men over fifty years of age. Natural killer cells (NK) are part of the innate immune system recognizing class I HLA molecules on target cells through their membrane receptors, called killer immunoglobulin-like receptors (KIR). The aim of our study was to evaluate the association between the KIR genes and HLA alleles in patients with prostate cancer and healthy controls. Two hundred prostate cancer patients and 185 healthy controls were typed for HLA class I and KIR genes by PCR-SSP. When both groups were compared, no significant differences were found for HLA-C group 1 and group 2, HLA-Bw4, HLA-A3 and A11. No difference was seen either in KIR frequency between patients with prostate cancer and controls. In conclusion, our data suggests no potential role for the KIR gene system in prostate cancer.
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Ichise, Hiroshi. "NK cell alloreactivity against KIR-ligand-mismatched HLA-haploidentical tissue derived from HLA haplotype-homozygous iPSCs." Kyoto University, 2017. http://hdl.handle.net/2433/228232.

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Book chapters on the topic "Killer immunoglobulin-like receptor (KIR)"

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Hou, Lihua, Minghua Chen, Noriko Steiner, Kanthi Kariyawasam, Jennifer Ng, and Carolyn K. Hurley. "Killer Cell Immunoglobulin-Like Receptors (KIR) Typing by DNA Sequencing." In Methods in Molecular Biology™, 431–68. Totowa, NJ: Humana Press, 2012. http://dx.doi.org/10.1007/978-1-61779-842-9_25.

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Li, Hongchuan, Paul W. Wright, and Stephen K. Anderson. "Identification and Analysis of Novel Transcripts and Promoters in the Human Killer Cell Immunoglobulin-like Receptor (KIR ) Genes." In Methods in Molecular Biology, 377–91. Totowa, NJ: Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60761-362-6_26.

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Dorak, M. Tevfik. "Role of Natural Killer Cells and Killer Immunoglobulin-Like Receptor Polymorphisms." In Bone Marrow and Stem Cell Transplantation, 123–44. Totowa, NJ: Humana Press, 2007. http://dx.doi.org/10.1007/978-1-59745-223-6_10.

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Rajalingam, Raja. "Overview of the Killer Cell Immunoglobulin-Like Receptor System." In Methods in Molecular Biology™, 391–414. Totowa, NJ: Humana Press, 2012. http://dx.doi.org/10.1007/978-1-61779-842-9_23.

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Schellekens, Jennifer, Katia Gagne, and Steven G. E. Marsh. "Natural Killer Cells and Killer-Cell Immunoglobulin-Like Receptor Polymorphisms: Their Role in Hematopoietic Stem Cell Transplantation." In Methods in Molecular Biology, 139–58. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-9437-9_9.

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"Killer Immunoglobulin-Like Receptors (KIR)." In Encyclopedia of Signaling Molecules, 2771. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67199-4_105437.

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"Killer Immunoglobulin-Like Receptors (KIR)." In Encyclopedia of Signaling Molecules, 1001. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0461-4_100688.

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Conference papers on the topic "Killer immunoglobulin-like receptor (KIR)"

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Wang, Enxiu, Liang-Chuan Wang, Ching-Yi Tsai, Vijay Bhoj, Steven Albelda, Edmund Moon, and Michael C. Milone. "Abstract B22: A chimeric antigen receptor (CARs) based upon a killer immunoglobulin-like receptor (KIR) triggers robust cytotoxic activity in solid tumors." In Abstracts: AACR Special Conference: Tumor Immunology and Immunotherapy: A New Chapter; December 1-4, 2014; Orlando, FL. American Association for Cancer Research, 2015. http://dx.doi.org/10.1158/2326-6074.tumimm14-b22.

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Chan, Daniel C. F., Zhiyong Zhang, Hong Wang, Xiaomei Sui, Tiffany T. Y. Chan, Natalie Ahn, Joe Phillips, Kathryn Horwitz, Lewis Lanier, and Paul Bunn. "Abstract 3656: Therapeutic effects of anti-KIR antibodies against metastatic cancer cells with aberrant expression of Natural Killer-Cell Immunoglobulin-like Receptors (KIRs)." In Proceedings: AACR 102nd Annual Meeting 2011‐‐ Apr 2‐6, 2011; Orlando, FL. American Association for Cancer Research, 2011. http://dx.doi.org/10.1158/1538-7445.am2011-3656.

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Rauf, Khairunnisa Abd, Erry Gumilar Dachlan, and Ariyanto Harsono. "Decidual Killer Immunoglobulin-Like Receptor (KIR)2DL1 Expression and the Onset of Preeclampsia, Birth Weight and Placental Weight in Early and Late Onset Preeclampsia." In 2nd International Conference Postgraduate School. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0007542103210324.

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Venstrom, Jeffrey M., Junting Zheng, Brian H. Kushner, Shakeel Modak, Karen E. Danis, Irene Y. Cheung, Bo Dupont, Nai-Kong Cheung, and Katharine C. Hsu. "Abstract 5586: NK cell killer Ig-like receptor (KIR) genotype as a novel biomarker for neuroblastoma patients receiving Anti-GD2 monoclonal antibody 3F8." In Proceedings: AACR 101st Annual Meeting 2010‐‐ Apr 17‐21, 2010; Washington, DC. American Association for Cancer Research, 2010. http://dx.doi.org/10.1158/1538-7445.am10-5586.

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Mkorombindo, T., T. K. Tran-Nguyen, K. Yuan, J. Xue, J. M. Pilewski, M. L. N. McDonald, F. C. Sciurba, and S. R. Duncan. "The Association of HLA-C and Killer Cell Immunoglobulin-Like Receptor Permutations on COPD Risk." In American Thoracic Society 2020 International Conference, May 15-20, 2020 - Philadelphia, PA. American Thoracic Society, 2020. http://dx.doi.org/10.1164/ajrccm-conference.2020.201.1_meetingabstracts.a2545.

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Vineretsky, Karin A., Margaret R. Karagas, Michael Pawlita, and Heather H. Nelson. "Abstract 1332: Functional killer-immunoglobulin-like receptor variation and risk of non-melanoma skin cancer." In Proceedings: AACR 104th Annual Meeting 2013; Apr 6-10, 2013; Washington, DC. American Association for Cancer Research, 2013. http://dx.doi.org/10.1158/1538-7445.am2013-1332.

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Fontela, Miguel Gomez, Sebastian Snedal, and Daniel Abate-Daga. "225 Killer cell immunoglobulin-like receptor 2DL2 (KIR2DL2) immune checkpoint as a modulator of T-cell effector function." In SITC 37th Annual Meeting (SITC 2022) Abstracts. BMJ Publishing Group Ltd, 2022. http://dx.doi.org/10.1136/jitc-2022-sitc2022.0225.

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Chan, Daniel C., Zhiyong Zhang, Di Zheng, Tiffany Chan, Mary Berg, Kathryn Horwitz, Natalie Ahn, Lewis Lanier, and Paul Bunn. "Abstract 4836: Immune-tolerance due to aberrant expression of Natural Killer-Cell Immunoglobulin-like Receptors (KIRs) on cancer cells and enhanced cancer-platelet interactions." In Proceedings: AACR Annual Meeting 2014; April 5-9, 2014; San Diego, CA. American Association for Cancer Research, 2014. http://dx.doi.org/10.1158/1538-7445.am2014-4836.

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Reports on the topic "Killer immunoglobulin-like receptor (KIR)"

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Varbanova, Viktoria, Snejina Mihailova, Elissaveta Naumova, and Anastasiya Mihaylova. Distribution of Killer-cell Immunoglobulin-like Receptors (KIR) and their HLA Class I Ligands in the Bulgarian Population. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, July 2020. http://dx.doi.org/10.7546/crabs.2020.07.14.

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