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anti hla antibodies

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https://www.readbyqxmd.com/read/29776388/contributions-of-hla-haplotypes-il8-level-and-toxoplasma-gondii-infection-in-defining-celiac-disease-s-phenotypes
#1
Mohammad Rostami-Nejad, Seyed Hossein Hejazi, Amado Salvador Peña, Hamid Asadzadeh-Aghdaei, Kamran Rostami, Umberto Volta, Mohammad Reza Zali
BACKGROUND: It is not clear why some patients with coeliac disease (CD) present with severe symptoms and small intestinal mucosal damages while others present with milder symptoms and no frank enteropathy. There is no study to assess the associated factors with mild/severe symptoms and enteropathy. The terminologies like latent, silent and potential are difficult to use and are unrepresentative. In the present study we describe coeliac disease's phenotypes based on HLA haplotypes, IL8 production and past infection with Toxoplasma gondii (T...
May 18, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29772544/antigen-specific-therapy-of-graves%C3%A2-disease-and-orbitopathy-by-induction-of-tolerance
#2
Martin Ungerer, Julia Fabbender, Hans-Peter Holthoff
Graves´ disease is an autoimmune disorder, which is characterized by stimulatory antibodies targeting the human thyrotropin receptor (TSHR), resulting in hyperthyroidism and multiple organ damage. The disease can be modelled in mice using adenoviral immunizations with the extracellular A subunit of the TSHR, which induces a long-term stable disease state. TSHR binding cAMP-stimulatory antibodies, thyroid enlargement, elevated serum thyroxin levels, tachycardia, cardiac hypertrophy and orbitopathy are observed in these Ad-TSHR-immunized mice...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/29767445/comparison-of-de-novo-igm-and-igg-anti-hla-dsa-between-belatacept-and-calcineurin-treated-patients-an-analysis-of-the-benefit-and-benefit-ext-trial-cohorts
#3
Matthew J Everly, Mustimbo Roberts, Robert Townsend, Robert A Bray, Howard M Gebel
Preventing conversion of donor-specific anti-HLA antibodies (DSA) from an IgM-to-IgG could a way to prevent chronic rejection. We evaluated whether belatacept-treated patients [belatacept less-intensive (LI) more-intensive (MI) regimens] have a lower rate of conversion than cyclosporine A (CsA) treated patients. We included 330 HLA mismatched patients from two phase-3 trials with either (a) complete donor/recipient HLA-A,-B,-DR, and -DQ loci typing or (b) incomplete HLA typing with IgG DSA detected pre- or post-transplant...
May 16, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29758051/the-effect-of-acylation-with-fatty-acids-and-other-modifications-on-hla-class-ii-peptide-binding-and-t-cell-stimulation-for-three-model-peptides
#4
Heidi S Schultz, Søren Østergaard, John Sidney, Kasper Lamberth, Alessandro Sette
Immunogenicity is a major concern in drug development as anti-drug antibodies in many cases affect both patient safety and drug efficacy. Another concern is often the limited half-life of drugs, which can be altered by different chemical modifications, like acylation with fatty acids. However, acylation with fatty acids has been shown in some cases to modulate T cell activation. Therefore, to understand the role of acylation with fatty acids on immunogenicity we tested three immunogenic non-acylated peptides and 14 of their acylated analogues for binding to 26 common HLA class II alleles, and their ability to activate T cells in an ex vivo T cell assay...
2018: PloS One
https://www.readbyqxmd.com/read/29746558/anti-citrullinated-protein-antibody-response-after-primary-ebv-infection-in-kidney-transplant-patients
#5
Lianne J N Kraal, Marieke L Nijland, Kristine L Germar, Dominique L P Baeten, Ineke J M Ten Berge, Cynthia M Fehres
Rheumatoid arthritis (RA) is a chronic inflammatory disease of synovial joints, characterized by the presence of the highly disease-specific anti-citrullinated protein antibodies (ACPA) in approximately 70% of patients. Epstein-Barr virus (EBV) has previously been suggested to be involved in the pathophysiology of RA. However, given the high incidence of EBV in the general population and the difficulty of detecting initial infection, providing a direct link between EBV infection and RA development has remained elusive...
2018: PloS One
https://www.readbyqxmd.com/read/29745997/efficacy-of-human-placental-derived-stem-cells-in-collagen-vii-knockout-recessive-dystrophic-epidermolysis-bullosa-animal-model
#6
Yanling Liao, Larisa Ivanova, Rajarajeswari Sivalenka, Trevor Plumer, Hongwen Zhu, Xiaokui Zhang, Angela M Christiano, John A McGrath, Jodi P Gurney, Mitchell S Cairo
Recessive dystrophic epidermolysis bullosa (RDEB) is a devastating inherited skin blistering disease caused by mutations in the COL7A1 gene that encodes type VII collagen (C7), a major structural component of anchoring fibrils at the dermal-epidermal junction (DEJ). We recently demonstrated that human cord blood-derived unrestricted somatic stem cells promote wound healing and ameliorate the blistering phenotype in a RDEB (col7a1-/- ) mouse model. Here, we demonstrate significant therapeutic effect of a further novel stem cell product in RDEB, that is, human placental-derived stem cells (HPDSCs), currently being used as human leukocyte antigen-independent donor cells with allogeneic umbilical cord blood stem cell transplantation in patients with malignant and nonmalignant diseases...
May 10, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29731924/the-spectrum-of-histopathological-changes-in-the-renal-allograft-a-12-months-protocol-biopsy-study
#7
Galina Severova-Andreevska, Ladislava Grcevska, Gordana Petrushevska, Koco Cakalaroski, Aleksandar Sikole, Olivera Stojceva-Taneva, Ilina Danilovska, Ninoslav Ivanovski
INTRODUCTION: Renal transplantation became a routine and successful medical treatment for Chronic Kidney Disease in the last 30 years all over the world. Introduction of Luminex based Single Antigen Beads (SAB) and recent BANFF consensus of histopathological phenotypes of different forms of rejection enables more precise diagnosis and changes the therapeutic approach. The graft biopsies, protocol or cause, indicated, remain a golden diagnostic tool for clinical follow up of kidney transplant recipients (KTR)...
April 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29731605/the-combination-of-anti-kir-monoclonal-antibodies-with-anti-pd-1-pd-l1-monoclonal-antibodies-could-be-a-critical-breakthrough-in-overcoming-tumor-immune-escape-in-nsclc
#8
Yayi He, Sangtian Liu, Jane Mattei, Paul A Bunn, Caicun Zhou, Daniel Chan
Background: The anti-programmed death-1 (PD-1)/programmed death ligand-1 (PD-L1) monoclonal antibody has a good effect in the treatment of non-small cell lung cancer (NSCLC), but not all PD-1/PD-L1 positive patients can get benefit from it. Compensatory expression of other immune checkpoints may be correlated with the poor efficacy of anti-PD-1/PD-L1 monoclonal antibodies. The inhibitory human leukocyte antigen (HLA)/killer cell Ig-like receptor (KIR) can effectively block the killing effect of natural killer (NK) cells on tumors...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29731068/comparison-of-sensitivity-of-immunocomplex-capture-fluorescence-analysis-for-detecting-donor-specific-anti-hla-class-ii-antibodies-in-kidney-transplant-patients
#9
N Ichimaru, T Takayama, H Hirase, Y Hisayama, M Kawamura, S Nakazawa, T Kato, T Abe, J-Y Kaimori, R Imamura, N Nonomura, S Takahara
BACKGROUND: Immunocomplex capture fluorescence analysis (ICFA) detects donor-specific antihuman leukocyte antigen (HLA) antibodies (DSA), but the detection sensitivity of HLA class II antibodies using conventional ICFA is as low as 57%. The aim of the study was to improve the detection sensitivity of HLA class II antibodies by ICFA, and compare the ICFA results with the Luminex single-antigen bead test. METHODS: Six DSA-negative kidney transplant donors and recipient pairs and 10 HLA class II DSA-positive pairs were included in the study...
May 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29728533/reply-to-roudier-et-al-hla-drb1-polymorphism-anti-citrullinated-protein-antibodies-and-rheumatoid-arthritis
#10
Yi Tian Ting, Anthony W Purcell, Hugh H Reid, Jamie Rossjohn
No abstract text is available yet for this article.
May 4, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29725336/tribody-her2-2-xcd16-is-more-effective-than-trastuzumab-in-enhancing-%C3%AE-%C3%AE-t-cell-and-natural-killer-cell-cytotoxicity-against-her2-expressing-cancer-cells
#11
Hans H Oberg, Christian Kellner, Daniel Gonnermann, Susanne Sebens, Dirk Bauerschlag, Martin Gramatzki, Dieter Kabelitz, Matthias Peipp, Daniela Wesch
An enhanced expression of human epidermal growth factor receptor 2 (HER2, ErbB2) often occurs in an advanced stage of breast, ovarian, gastric or esophageal cancer, and pancreatic ductal adenocarcinoma (PDAC). Commonly, HER2 expression is associated with poor clinical outcome or chemoresistance in ovarian and breast cancer patients. Treatment with humanized anti-HER2 monoclonal antibodies, such as trastuzumab or pertuzumab, has improved the outcome of patients with HER2-positive metastatic gastric or breast cancer, but not all patients benefit...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29719115/preemptive-treatment-of-early-donor-specific-antibodies-with-iga-and-igm-enriched-intravenous-human-immunoglobulins-in-lung-transplantation
#12
Fabio Ius, Murielle Verboom, Wiebke Sommer, Reza Poyanmehr, Ann-Kathrin Knoefel, Jawad Salman, Christian Kuehn, Murat Avsar, Thierry Siemeni, Caroline Erdfelder, Michael Hallensleben, Dietmar Boethig, Nicolaus Schwerk, Carsten Mueller, Tobias Welte, Christine Falk, Axel Haverich, Igor Tudorache, Gregor Warnecke
This retrospective study presents our 4-year experience of preemptive treatment of early anti-HLA donor specific antibodies with IgA- and IgM-enriched immunoglobulins. We compared outcomes between patients with antibodies and treatment (case patients) and patients without antibodies (control patients). Records of patients transplanted at our institution between 03/2013 and 11/2017 were reviewed. The treatment protocol included one single 2g/kg immunoglobulin infusion followed by successive 0.5g/kg infusions for a maximum of 6 months, usually combined with a single dose of anti-CD20 antibody and, in case of clinical rejection or positive crossmatch, with plasmapheresis or immunoabsorption...
May 2, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29713794/comparison-of-the-diagnostic-potential-of-three-anti-citrullinated-protein-antibodies-as-adjuncts-to-rheumatoid-factor-and-ccp-in-a-cohort-of-south-african-rheumatoid-arthritis-patients
#13
Pieter W A Meyer, Mahmood T M Ally, Bridget Hodkinson, Ronald Anderson, Mohammed Tikly
PURPOSE: A retrospective comparison of the prevalence and diagnostic value of anti-Sa, anti-CEP-1, and anti-MCV autoantibodies relative to those of the established autoantibodies, composite RF and anti-CCP-IgG used routinely for RA diagnosis as a component of the ACR 2010 criteria, in a cohort of disease-modifying anti-rheumatic drug naïve African RA patients (n = 75). METHODS: Serum concentrations of anti-Sa, anti-CEP-1 and anti-MCV autoantibodies were measured using ELISA procedures, while anti-CCP-IgG antibodies were determined by fluorescence enzyme immunoassay, and composite RF by latex-enhanced laser nephelometry...
April 30, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29707628/poor-patient-and-graft-outcome-after-induction-treatment-by-antithymocyte-globulin-in-recipients-of-a-kidney-graft-after-nonrenal-organ-transplantation
#14
Hoa Le Mai, Michèle Treilhaud, Shani Leviatan Ben-Arye, Hai Yu, Hélène Perreault, Evelyn Ang, Katy Trébern-Launay, Julie Laurent, Stéphanie Malard-Castagnet, Anne Cesbron, Thi Van Ha Nguyen, Sophie Brouard, Lionel Rostaing, Pauline Houssel-Debry, Christophe Legendre, Sophie Girerd, Michèle Kessler, Emmanuel Morelon, Antoine Sicard, Valérie Garrigue, Georges Karam, Xi Chen, Magali Giral, Vered Padler-Karavani, Jean Paul Soulillou
Background: End-stage renal failure occurs in a substantial number of patients having received a nonrenal transplantation (NRT), for whom a kidney transplantation is needed. The medical strategy regarding the use of immunosuppression (IS) for a kidney graft in patients after an NRT is not well established. The prekidney grafts long-term IS advocates for a mild induction, such as using anti-IL-2R antibodies, whereas addition of new incompatibilities and anti-HLA preimmunization may suggest using stronger IS such as induction by polyclonal antithymocyte globulins (ATG)...
April 2018: Transplantation Direct
https://www.readbyqxmd.com/read/29698940/corticosteroid-therapy-improves-the-outcome-of-autoimmune-hepatitis-induced-acute-liver-failure
#15
Olympia E Anastasiou, Betül Dogan-Cavus, Ozlem Kucukoglu, Hideo Baba, Alisan Kahraman, Guido Gerken, Christoph Schramm, Ali Canbay
BACKGROUND/AIMS: Autoimmune hepatitis (AIH) is a relatively rare cause of liver dysfunction and may lead in some cases to acute liver failure (ALF). The aim of our study was to evaluate the clinical course and outcome of patients with AIH-induced ALF. METHODS: We retrospectively enrolled 32 patients with AIH-induced ALF and 93 age- and sex-matched patients with chronic AIH (cAIH) who were enrolled at the University Clinic Essen from 1988 to 2014. All ALF patients were treated with corticosteroids after diagnosis...
April 26, 2018: Digestion
https://www.readbyqxmd.com/read/29691938/hla-drb1-15-03-and-hla-drb1-11-useful-predictive-alleles-for-alloantibody-production-in-thalassemia-patients
#16
P Darvishi, Z Sharifi, A Azarkeivan, A Akbari, A A Pourfathollah
BACKGROUND AND OBJECTIVES: Recently, thalassemia has been introduced as a chronic disease. In spite of prolonging life in thalassemia patients, the quality of their life has not significantly improved. One of the challenges that makes their quality of life poor is alloimmunisation which causes several complications to patients by restricting their options. Some individuals are more susceptible to developing an alloantibody than others. They are categorised as responders and non-responders...
April 25, 2018: Transfusion Medicine
https://www.readbyqxmd.com/read/29685925/hla-dq-mismatching-and-kidney-transplant-outcomes
#17
Napat Leeaphorn, Jeremy Ryan A Pena, Natanong Thamcharoen, Eliyahu V Khankin, Martha Pavlakis, Francesca Cardarelli
BACKGROUND AND OBJECTIVES: Recent evidence suggests that HLA epitope-mismatching at HLA-DQ loci is associated with the development of anti-DQ donor-specific antibodies and adverse graft outcomes. However, the clinical significance of broad antigen HLA-DQ mismatching for graft outcomes is not well examined. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Using the United Network Organ Sharing/the Organ Procurement and Transplantation Network (UNOS/OPTN) data, patients with primary kidney transplants performed between 2005 and 2014 were included...
April 23, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29679556/a-novel-smac-mimetic-apg-1387-exhibited-dual-antitumor-effect-on-hbv-positive-hepatocellular-carcinoma-with-high-expression-of-ciap2-by-inducing-apoptosis-and-enhancing-innate-anti-tumor-immunity
#18
Wentao Pan, Qiuyun Luo, Xianglei Yan, Luping Yuan, Hanjie Yi, Lin Zhang, Baoxia Li, Yuxin Zhang, Jian Sun, Miao-Zhen Qiu, Da-Jun Yang
Check point inhibitor anti-PD1 antibody produced some efficacy in Hepatocellular Carcinoma (HCC) patients previously treated with sorafenib. Unfortunately, HCC patients with hepatitis B virus (HBV) infection did not respond as well as uninfected patients. Previously, SMAC mimetics-the antagonist for inhibitor of apoptosis proteins (IAPs) can rapidly reduce serum hepatitis B virus DNA in animal model. APG-1387 is a novel SMAC-mimetic, small molecule inhibitor targeting inhibitor of apoptosis proteins (IAPs)...
April 18, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29675021/anti-thyroid-peroxidase-reactivity-is-heightened-in-pemphigus-vulgaris-and-is-driven-by-human-leukocyte-antigen-status-and-the-absence-of-desmoglein-reactivity
#19
Kristina Seiffert-Sinha, Shahzaib Khan, Kristopher Attwood, John A Gerlach, Animesh A Sinha
Pemphigus vulgaris (PV) belongs to an autoimmune disease cluster that includes autoimmune thyroid disease (AITD), suggesting common mechanisms driving autoimmune susceptibility. Our group has shown that PV patients exhibit significant reactivity to AITD-related anti-thyroid peroxidase (anti-TPO), and anti-TPO antibodies affect signaling pathways in keratinocytes similar to anti-desmoglein (Dsg) 3 antibodies. To further assess the relevance of anti-TPO reactivity in PV, we analyzed anti-TPO levels in 280 PV and 167 healthy control serum samples across a comprehensive set of variable and static parameters of disease activity and etiopathogenesis...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29674502/dissecting-the-pathophysiology-of-immune-thrombotic-thrombocytopenic-purpura-interplay-between-genes-and-environmental-triggers
#20
Johana Hrdinová, Silvia D'Angelo, Nuno A G Graça, Bogac Ercig, Karen Vanhoorelbeke, Agnès Veyradier, Jan Voorberg, Paul Coppo
Although outstanding progress has been made in comprehending the pathophysiology of thrombotic thrombocytopenic purpura, our understanding of the immunopathogenesis of the disease is only in its earlier stage. Anti-ADAMTS13 auto-antibodies were shown to block proteolysis of von Willebrand factor and/or induce ADAMTS13 clearance from the circulation. However, which immune cells are involved in the production of anti-ADAMTS13 autoantibodies and hence account for the remarkable efficacy of the B-cell depleting agents in this disease, remain to be identified...
April 19, 2018: Haematologica
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