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Immunogenetics

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https://www.readbyqxmd.com/read/28547520/small-scale-intraspecific-patterns-of-adaptive-immunogenetic-polymorphisms-and-neutral-variation-in-lake-superior-lake-trout
#1
Shauna M Baillie, Riley R Hemstock, Andrew M Muir, Charles C Krueger, Paul Bentzen
Many fishes express high levels of intraspecific variability, often linked to resource partitioning. Several studies show that a species' evolutionary trajectory of adaptive divergence can undergo reversals caused by changes in its environment. Such a reversal in neutral genetic and morphological variation among lake trout Salvelinus namaycush ecomorphs appears to be underway in Lake Superior. However, a water depth gradient in neutral genetic divergence was found to be associated with intraspecific diversity in the lake...
May 25, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28542534/the-carriage-of-interleukin-1b-31-c-allele-plus-staphylococcus-aureus-and-haemophilus-influenzae-increases-the-risk-of-recurrent-tonsillitis-in-a-mexican-population
#2
Baltazar González-Andrade, Ramiro Santos-Lartigue, Samantha Flores-Treviño, Natalie Sonia Ramirez-Ochoa, Paola Bocanegra-Ibarias, Francisco J Huerta-Torres, Soraya Mendoza-Olazarán, Licet Villarreal-Treviño, Adrián Camacho-Ortiz, Hipólito Villarreal-Vázquez, Elvira Garza-González
The aim of the present study was to estimate the relative contribution of immunogenetic and microbiological factors in the development of recurrent tonsillitis in a Mexican population. Patients (n = 138) with recurrent tonsillitis and an indication of tonsillectomy (mean age: 6.05 years ± 3.00; median age: 5 years, female: 58; age range: 1-15 years) and 195 non-related controls older than 18 years and a medical history free of recurrent tonsillitis were included. To evaluate the microbial contribution, tonsil swab samples from both groups and extracted tonsil samples from cases were cultured...
2017: PloS One
https://www.readbyqxmd.com/read/28536306/chronic-lymphocytic-leukemia-with-mutated-ighv4-34-receptors-shared-and-distinct-immunogenetic-features-and-clinical-outcomes
#3
Aliki Xochelli, Panagiotis Baliakas, Ioannis Kavakiotis, Andreas Agathangelidis, Lesley-Ann Sutton, Eva Minga, Stavroula Ntoufa, Eugen Tausch, Xiao-Jie Yan, Tait D Shanafelt, Karla Plevova, Myriam Boudjogra, Davide Rossi, Zadie Davis, Alba Navarro, Yorick Sandberg, Fie Juhl Vojdeman, Lydia Scarfò, Niki Stavroyianni, Andrey Sudarikov, Silvio Veronese, Tatiana Tzenou, Teodora Karan Djurasevic, Mark A Catherwood, Dirk Kienle, Maria Chatzouli, Monica Facco, Jasmin Bahlo, Christiane Pott, Lone Bredo Pedersen, Larry Mansouri, Karin E Smedby, Charles C Chu, Véronique Giudicelli, Marie-Paule Lefranc, Panagiotis Panagiotidis, Gunnar Juliusson, Achilles Anagnostopoulos, Ioannis Vlahavas, Darko Antic, Livio Trentin, Marco Montillo, Carsten U Niemann, Hartmut Dohner, Anton W Langerak, Sarka Pospisilova, Michael Hallek, Elias Campo, Nicholas- Chiorazzi, Nikos Maglaveras, David Oscier, Gianluca Gaidano, Diane F Jelinek, Stephan Stilgenbauer, Ioanna Chouvarda, Nikos Darzentas, Chrysoula Belessi, Frédéric Davi, Anastasia Hadzidimitriou, Richard Rosenquist, Paolo Ghia, Kostas Stamatopoulos
We sought to investigate if B cell receptor immunoglobulin (BcR IG) stereotypy is associated with particular clinicobiological features amongst chronic lymphocytic leukemia (CLL) patients expressing mutated BcR IG (M-CLL) encoded by the IGHV4-34 gene, and also ascertain whether these associations could refine prognostication.<br /> <p>Experimental Design: In a series of 19,907 CLL cases with available immunogenetic information, we identified 339 IGHV4-34 expressing cases assigned to one of the four largest stereotyped M-CLL subsets, namely subsets #4, #16, #29 and #201, and investigated in detail their clinicobiological characteristics and disease outcomes...
May 23, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28535087/cytotoxic-t-cells-in-chronic-idiopathic-neutropenia-express-restricted-antigen-receptors
#4
Semeli Mastrodemou, Evangelia Stalika, Anna Vardi, Katerina Gemenetzi, Michalis Spanoudakis, Maria Karypidou, Irene Mavroudi, Anastasia Hadzidimitriou, Catherine Stavropoulos-Giokas, Helen A Papadaki, Kostas Stamatopoulos
Chronic idiopathic neutropenia (CIN) is an acquired disorder of granulopoiesis characterized by female predominance and mostly uncomplicated course. Crucial to CIN pathophysiology is the presence of activated T lymphocytes with myelosuppressive properties in both peripheral blood (PB) and bone marrow (BM). We systematically profiled the T cell receptor beta chain (TRB) gene repertoire in CD8(+) cells of 34 CIN patients through subcloning/Sanger sequencing analysis of TRBV-TRBD-TRBJ gene rearrangements. Remarkable repertoire skewing and oligoclonality were observed, along with shared clonotypes between different patients, alluding to antigen selection...
May 23, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28511169/efficiency-comparison-of-tofacitinib-and-budesonid-in-treatment-of-nonspecific-ulcerative-colitis
#5
Andriy M Bratasiuk, Antonina I Niroda
INTRODUCTION: A constant interest to explore NUC is caused by the global trend showing a rise in colitis mobidity rate. According to a series of epidemiological studies, the highest incidence of NUC occurs in young age groups, which leads to significant loss of working capacity and high level of incapacitation. One of the leading roles in the pathogenesis of this disease is reportedly played by immunogenetic theory. To date, the main practical technique of NUC diagnostics is colonoscopy...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28509679/the-impact-of-next-generation-sequencing-in-immunogenetics-current-status-and-future-directions
#6
Valia Bravo-Egana, Dimitri Monos
PURPOSE OF REVIEW: Next-generation sequencing (NGS) has now been established, and widely recognized, to be the preferred choice for human leukocyte antigen (HLA) typing. This transformation is based upon the many scientific, operational and economic benefits this technology affords. In this report, we review the major advantages, existing limitations and significant promise derived from adopting this technology in immunogenetics. RECENT FINDINGS: Significant benefits have emerged from the usage of NGS in a relatively short period, whereby we realize that this technology not only helps addressing the technical and operational problems we have had with the legacy methods for HLA typing, but equally important, it also allows for creative applications in stem cell and organ transplantation, new ways to investigate associations of the major histocompatibility complex (MHC) with many diseases and enhance our understanding regarding the MHC and non-MHC genomic interactions...
May 13, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28502720/insights-into-the-chicken-igy-with-emphasis-on-the-generation-and-applications-of-chicken-recombinant-monoclonal-antibodies
#7
REVIEW
Warren Lee, Syed Atif Ali, Tan Soo Choon, Leow Chiuan Herng
The advantages of chicken (Gallus gallus domesticus) antibodies as immunodiagnostic and immunotherapeutic biomolecules has only been recently recognized. Even so, chicken antibodies remain less-well characterized than their mammalian counterparts. This review aims at providing a current overview of the structure, function, development and generation of chicken antibodies. Additionally, brief but comprehensive insights into current knowledge pertaining to the immunogenetic framework and diversity-generation of the chicken immunoglobulin repertoire which have contributed to the establishment of recombinant chicken mAb-generating methods are discussed...
May 11, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28499414/hlascan-genotyping-of-the-hla-region-using-next-generation-sequencing-data
#8
Sojeong Ka, Sunho Lee, Jonghee Hong, Yangrae Cho, Joohon Sung, Han-Na Kim, Hyung-Lae Kim, Jongsun Jung
BACKGROUND: Several recent studies showed that next-generation sequencing (NGS)-based human leukocyte antigen (HLA) typing is a feasible and promising technique for variant calling of highly polymorphic regions. To date, however, no method with sufficient read depth has completely solved the allele phasing issue. In this study, we developed a new method (HLAscan) for HLA genotyping using NGS data. RESULTS: HLAscan performs alignment of reads to HLA sequences from the international ImMunoGeneTics project/human leukocyte antigen (IMGT/HLA) database...
May 12, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28488340/abstracts-for-the-31st-european-immunogenetics-and-histocompatibility-conference-efi-25th-annual-meeting-of-the-german-society-for-immunogenetics-dgi-mannheim-heidelberg-germany-30-may-2-june-2017
#9
https://www.readbyqxmd.com/read/28478820/down-regulation-of-hla-g-gene-expression-as-an-immunogenetic-contraceptive-therapy
#10
Valéria Kaminski, Joel Henrique Ellwanger, José Artur Bogo Chies
HLA-G is a nonclassical HLA immunotolerogenic molecule expressed in different human cell types. Successful embryo implantation is a consequence of information exchange between the uterus and the blastocyst. It is widely accepted that HLA-G expression by the fetus promotes the establishment of several mechanisms that, ultimately, would protect the developing embryo from maternal immune rejection and seems to be essential to both an adequate implantation and a healthy pregnancy. MicroRNAs miR-148a and miR-152 down-regulate HLA-G expression...
May 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28473031/-recurrent-pregnancy-loss
#11
Maria Christine Krog, Astrid Marie Kolte, Karen Husby, Pia Egerup, Elisabeth Clare Larsen, Ole Bjarne Christiansen, Henriette Svarre Nielsen
Recurrent pregnancy loss (RPL) is defined as three or more consecutive pregnancy losses, and it affects 2-3% of couples trying to conceive. RPL is a multifactorial disorder, and only few evidence-based treatments are available. It is associated with an increased prevalence of stress and major depression, and also with immunogenetic markers, autoimmunity and an increase of the risk of cardiovascular disease in later life. Immunology seems to be a key element in RPL, and further research is needed to understand the pathogenesis of this heterogeneous condition in order to develop personalized treatment...
April 24, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28457696/numerous-ontogenetic-roads-to-mantle-cell-lymphoma-immunogenetic-and-immunohistochemical-evidence
#12
Evi Pouliou, Aliki Xochelli, George Kanellis, Evangelia Stalika, Lesley-Ann Sutton, Alba Navarro, Andreas Agathangelidis, Kypros Dimosthenous, Achilles Anagnostopoulos, Efstratios Patsouris, Penelope Korkolopoulou, Christer Sundstrom, Paolo Ghia, Maurilio Ponzoni, Birgitta Sander, Elias Campo, Richard Rosenquist, Anastasia Hadzidimitriou, Kostas Stamatopoulos, Theodora Papadaki
To obtain insight into the ontogeny of mantle cell lymphoma (MCL), we assessed 206 patients from a morphological, immunohistochemical, and immunogenetic perspective. Our series included nodal (n = 151), extranodal (n = 28), and primary splenic (n = 27) MCL cases. Skewing of the immunoglobulin heavy variable (IGHV) gene repertoire was noted, with only four IGHV genes accounting for 46% of cases and approximately 70% of cases (107/154) bearing an imprint of somatic hypermutation (SHM) ranging from minimal to pronounced...
April 27, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28416603/high-throughput-immunogenetics-for-clinical-and-research-applications-in-immunohematology-potential-and-challenges
#13
Anton W Langerak, Monika Brüggemann, Frédéric Davi, Nikos Darzentas, Jacques J M van Dongen, David Gonzalez, Gianni Cazzaniga, Véronique Giudicelli, Marie-Paule Lefranc, Mathieu Giraud, Elizabeth A Macintyre, Michael Hummel, Christiane Pott, Patricia J T A Groenen, Kostas Stamatopoulos
Analysis and interpretation of Ig and TCR gene rearrangements in the conventional, low-throughput way have their limitations in terms of resolution, coverage, and biases. With the advent of high-throughput, next-generation sequencing (NGS) technologies, a deeper analysis of Ig and/or TCR (IG/TR) gene rearrangements is now within reach, which impacts on all main applications of IG/TR immunogenetic analysis. To bridge the generation gap from low- to high-throughput analysis, the EuroClonality-NGS Consortium has been formed, with the main objectives to develop, standardize, and validate the entire workflow of IG/TR NGS assays for 1) clonality assessment, 2) minimal residual disease detection, and 3) repertoire analysis...
May 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28416602/antigen-receptor-galaxy-a-user-friendly-web-based-tool-for-analysis-and-visualization-of-t-and-b-cell-receptor-repertoire-data
#14
Hanna IJspeert, Pauline A van Schouwenburg, David van Zessen, Ingrid Pico-Knijnenburg, Andrew P Stubbs, Mirjam van der Burg
Antigen Receptor Galaxy (ARGalaxy) is a Web-based tool for analyses and visualization of TCR and BCR sequencing data of 13 species. ARGalaxy consists of four parts: the demultiplex tool, the international ImMunoGeneTics information system (IMGT) concatenate tool, the immune repertoire pipeline, and the somatic hypermutation (SHM) and class switch recombination (CSR) pipeline. Together they allow the analysis of all different aspects of the immune repertoire. All pipelines can be run independently or combined, depending on the available data and the question of interest...
May 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28416435/omics-and-cytokine-discovery-in-fish-presenting-the-yellowtail-kingfish-seriola-lalandi-as-a-case-study
#15
Gregory Jacobson, Simon Muncaster, Koen Mensink, Maria Forlenza, Nick Elliot, Grant Broomfield, Beth Signal, Steve Bird
A continued programme of research is essential to overcome production bottlenecks in any aquacultured fish species. Since the introduction of genetic and molecular techniques, the quality of immune research undertaken in fish has greatly improved. Thousands of species specific cytokine genes have been discovered, which can be used to conduct more sensitive studies to understand how fish physiology is affected by aquaculture environments or disease. Newly available transcriptomic technologies, make it increasingly easier to study the immunogenetics of farmed species for which little data exists...
April 15, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28396093/what-s-new-about-oral-treatments-in-multiple-sclerosis-immunogenetics-still-under-question
#16
REVIEW
Cristiana Pistono, Cecilia Osera, Chiara Boiocchi, Giulia Mallucci, Mariaclara Cuccia, Roberto Bergamaschi, Alessia Pascale
Multiple Sclerosis (MS) is a chronic pathology affecting the Central Nervous System characterized by inflammatory processes that lead to demyelination and neurodegeneration. In MS treatment, disease modifying therapies (DMTs) are essential to reduce disease progression by suppressing the inflammatory response responsible for promoting lesion formation. Recently, in addition to the classical injectable DMTs like Interferons and Glatiramer acetate, new orally administered drugs have been approved for MS therapy: dimethyl fumarate, teriflunomide and fingolimod...
June 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28394398/genetic-variants-of-ppar-gamma-coactivator-1b-augment-nlrp3-mediated-inflammation-in-gouty-arthritis
#17
Wan-Chun Chang, Yeong-Jian Jan Wu, Wen-Hung Chung, Yun-Shien Lee, See-Wen Chin, Ting-Jui Chen, Yu-Sun Chang, Der-Yuan Chen, Shuen-Iu Hung
Objective.: Gout is characterized by recurrent attacks of arthritis with hyperuricaemia and urate crystal-induced inflammation. Although urate transporters are known as risk factors, the immunogenetics of gouty inflammation remains unclear. This study aimed to investigate the genetic association between immune/metabolism regulators and gout. Methods.: We enrolled 448 gout patients and 943 population controls from Taiwan; all were Han Chinese. We screened association between gout and 22 variants of candidate genes, including NLRP3 , caspase 1, peroxisome proliferator-activated receptor-γ, proliferator-activated receptor-γ coactivator 1α ( PPARGC1A ) and 1β ( PPARGC1B )...
March 1, 2017: Rheumatology
https://www.readbyqxmd.com/read/28388241/chagas-disease-immunogenetics-elusive-markers-of-disease-progression
#18
Yelenca Ortega Zamora, Leidy Johana Escamilla Rojas, Elvis Mayron Villa Sandoval, Joan Steven Vela Porras, Edgar Yarleison Cossio Contrera, Sergio Sebastian Cubides Romero, Pedro David Carreño Ramirez, Hermes Urriago Losada, Carolina De Los Rios, Daniela Alejandra Gomez Mahecha, Karen Daniela Lovera Serrano, Juan Carlos Barreto Montaña, Viviana Lorena Narvaez Caicedo, Fredy Rs Gutierrez
Chagas disease (CD) is caused by a parasitic infection. The disease usually occurs after decades of the primary infection and can involve the myocardium or the digestive system. Of note, around 30% of T. cruzi infected patients develop CD while the other 70% may remain asymptomatic for their entire life. CD is usually observed as familial clustered phenomena. Moreover, individuals with chronic Chagas heart disease (CCHD) usually present a strong, deregulated immune response, which strongly suggests an immunogenetic effect...
April 7, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28374494/immunogenetic-profiling-of-23-snps-of-cytokine-and-chemokine-receptor-genes-through-a-minisequencing-technique-design-development-and-validation
#19
J M Valverde-Villegas, R M de Medeiros, S E M Almeida, J A B Chies
The minisequencing technique offers accuracy and robustness to genotyping of polymorphic DNA variants, being an excellent option for the identification and analyses of prognostic/susceptibility markers in human diseases. Two multiplex minisequencing assays were designed and standardized to screen 23 candidate SNPs in cytokine, chemokine receptor and ligand genes previously associated with susceptibility to cancer and autoimmune disorders as well as to infectious diseases outcome. The SNPs were displayed in two separate panels (panel 1-IL2 rs2069762, TNFα rs1800629, rs361525; IL4 rs2243250; IL6 rs1800795; IL10 rs1800896, rs1800872; IL17A rs8193036, rs2275913 and panel 2-CCR3 rs309125, CCR4 rs6770096, rs2228428; CCR6 rs968334; CCR8 rs2853699; CXCR3 rs34334103, rs2280964;CXCR6 rs223435, rs2234358; CCL20 rs13034664, rs6749704; CCL22 rs4359426; CXCL10/IP-10 rs3921, rs56061981)...
April 4, 2017: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/28370771/toll-like-receptor-variation-in-the-bottlenecked-population-of-the-seychelles-warbler-computer-simulations-see-the-ghost-of-selection-past-and-quantify-the-drift-debt
#20
Danielle Gilroy, Karl Phillips, David S Richardson, Cock van Oosterhout
Balancing selection can maintain immunogenetic variation within host populations, but detecting its signal in a post-bottlenecked population is challenging due to the potentially overriding effects of drift. Toll-like receptor genes (TLRs) play a fundamental role in vertebrate immune defence and are predicted to be under balancing selection. We previously characterised variation at TLR loci in the Seychelles warbler (Acrocephalus sechellensis), an endemic passerine that has undergone a historical bottleneck...
March 28, 2017: Journal of Evolutionary Biology
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