keyword
MENU ▼
Read by QxMD icon Read
search

hla antibodies transplantation

keyword
https://www.readbyqxmd.com/read/29687961/human-leukocyte-antigens-antibodies-after-lung-transplantation-primary-results-of-the-halt-study
#1
Ramsey R Hachem, Malek Kamoun, Marie M Budev, Medhat Askar, Vivek N Ahya, James C Lee, Deborah J Levine, Marilyn S Pollack, Gundeep S Dhillon, David Weill, Kenneth B Schechtman, Lorriana E Leard, Jeffrey A Golden, LeeAnn Baxter-Lowe, Thalachallour Mohanakumar, Dolly B Tyan, Roger D Yusen
Donor-specific antibodies (DSA) to mismatched human leukocyte antigens (HLA) are associated with worse outcomes after lung transplantation. To determine the incidence and characteristics of DSA early after lung transplantation, we conducted a prospective multi-center observational study that used standardized treatment and testing protocols. Among 119 transplant recipients, 43 (36%) developed DSA: 6 (14%) developed DSA only to class I HLA, 23 (53%) developed DSA only to class II HLA, and 14 (33%) developed DSA to both class I and class II HLA...
April 24, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29685925/hla-dq-mismatching-and-kidney-transplant-outcomes
#2
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/29673058/pediatric-heart-transplantation-across-a-positive-crossmatch-first-year-results-from-the-ctotc-04-multi-institutional-study
#3
S Webber, A Zeevi, K Mason, L Addonizio, E Blume, A Dipchand, R Shaddy, B Feingold, C Canter, D Hsu, W Mahle, B Armstrong, Y Morrison, D Ikle, H Diop, J Odim
Sensitization is common in pediatric heart transplant candidates and wait list mortality is high. Transplantation across a positive crossmatch may reduce wait time, but is considered high risk. We prospectively recruited consecutive candidates at 8 North American centers. At transplantation, subjects were categorized as non-sensitized or sensitized (presence of ≥1 HLA antibody with MFI ≥1,000 using single antigen beads). Sensitized subjects were further classified as CDC-crossmatch positive or negative and as DSA positive or negative...
April 19, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29672702/the-disappointing-contribution-of-anti-human-leukocyte-antigen-donor-specific-antibodies-characteristics-for-predicting-allograft-loss
#4
Maxime Courant, Jonathan Visentin, Gabriel Linares, Valérie Dubois, Sébastien Lepreux, Gwendaline Guidicelli, Olivier Thaunat, Pierre Merville, Lionel Couzi, Jean-Luc Taupin
Background: Pathogenicity of donor-specific antibodies (DSAs) can be assessed using the single-antigen flow beads (SAFB) assays through mean fluorescence intensity (MFI) with or without serum ethylenediaminetetraacetic acid (EDTA) treatment, measurement of C1q or C3d binding and/or their intragraft detection [graft-bound donor-specific antibody (gDSA)]. We aimed to investigate which of these markers best associates with antibody-mediated rejection (ABMR) and kidney allograft loss at the time of a for-cause biopsy...
April 17, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29669260/limited-impact-of-pre-existing-donor-specific-hla-antibodies-dsa-on-long-term-allograft-survival-after-first-adult-liver-transplantation
#5
Martina Koch, Matthias Marget, Martina Sterneck, Lutz Fischer, Hansjörg Thude, Björn Nashan
The relevance of pre-existing HLA-antibodies (HLA-Ab) in liver transplantation (LTx) is controversial. While livers are allocated without HLA match or preoperative crossmatch testing, several studies point to an impact of donor specific antibodies (DSA) for acute rejection, bile duct complications or even graft loss. To investigate the role of DSA in long term liver allograft survival we analysed 177 pre transplant sera of first LTx patients with luminex single antigen technology defining a MFI of >1500 as positive...
April 15, 2018: Human Immunology
https://www.readbyqxmd.com/read/29665929/-anti-cd36-mediated-platelet-transfusion-refractoriness-and-related-cases-after-stem-cell-transplantation
#6
Yan Zhou, Li-Lan Li, Zhou-Lin Zhong, Xue-Jun Liu, Jin-Lian Liu, Wei-Dong Shen, Guo-Guang Wu
OBJECTIVE: To analyse the cases of platelet transfusion refractoriness after received HLA-matched unrelated donor hematopoietic stem cell transplantation, to analyze and identify the phenotype and genotype of CD36 in both the patient and stem cell donor, as well as the characteristic of antibody induced platelet transfusion refractoriness, and to analyse the efficacy of matched CD36-deficiency platelets transfusions. METHODS: The CD36 expression on platelet and monocyte was analyzed by flow cytometry (FCM) in both patient and donor...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29665189/prevalence-risk-factors-and-impact-of-donor-specific-alloantibodies-after-adult-liver-transplantation
#7
Katia Vandevoorde, Stéphanie Ducreux, Alexie Bosch, Olivier Guillaud, Valérie Hervieu, Christine Chambon-Augoyard, Domitille Poinsot, Patrice André, Jean-Yves Scoazec, Philip Robinson, Olivier Boillot, Valérie Dubois, Jérôme Dumortier
The incidence and impact of anti-HLA donor-specific alloantibodies (DSA) developing after liver transplantation (LT) remains controversial and not extensively studied. The aim of the present study was to assess the incidence of DSA, identify risk factors for the development of DSA, and the impact of DSA in a large population of adult LT recipients. This single center retrospective study included all adult patients who underwent a first LT between 2000 and 2010 in our center. The study population mainly consisted in male patients, the mean age was 52...
April 17, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29664112/efficacy-of-d-red-blood-cell-transfusion-and-rituximab-therapy-in-autoimmune-hemolytic-anemia-with-anti-d-and-panreactive-autoantibodies-arising-after-hematopoietic-stem-cell-transplant
#8
Keiji Minakawa, Hitoshi Ohto, Hiroyasu Yasuda, Shunichi Saito, Kinuyo Kawabata, Kazuei Ogawa, Kenneth E Nollet, Kazuhiko Ikeda
BACKGROUND: Autoimmune hemolytic anemia (AIHA) is caused by autoantibodies to red blood cells (RBCs), which can be panreactive and/or specific to Rh/other blood group antigens. We report a severe case of AIHA after bone marrow transplantation (BMT) due to autoanti-D triggered by reactivation of Epstein-Barr virus (EBV) infection. A combined strategy of D- RBC transfusion and administration of anti-CD20 monoclonal antibody (MoAb) resolved the hemolysis. CASE REPORT: A 33-year-old male underwent allogeneic BMT from an ABO-identical and HLA-matched unrelated male donor...
April 17, 2018: Transfusion
https://www.readbyqxmd.com/read/29661424/intravenous-immunoglobulin-and-rituximab-in-hla-highly-sensitized-kidney-transplant-recipients
#9
S Querido, A Weigert, T Adragão, J Henriques, R Birne, P Matias, C Jorge, C Nascimento, M Bruges, D Machado
INTRODUCTION: HLA-sensitized patients are penalized both in the access to kidney transplantation (KT) and, once transplanted, in the incidence of rejections and long-term allograft survival despite aggressive induction and maintenance therapy. METHODS: This study retrospectively evaluates the impact of combining T- and B-cell-depleting agents and intravenous immunoglobulin for induction therapy in 45 highly sensitized KT patients (anti-panel reactive antibodies >60%, positive flow cytometry crossmatch or donor specific antibodies at the time of transplantation)...
April 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29660004/renal-transplant-outcomes-and-de-novo-donor-specific-anti-human-leukocyte-antigen-antibodies-a-systematic-review
#10
Ankit Sharma, Joshua R Lewis, Wai H Lim, Suetonia Palmer, Giovanni Strippoli, Jeremy R Chapman, Stephen I Alexander, Jonathan C Craig, Germaine Wong
Background: Pre-transplant donor-specific anti-human leukocyte antigen antibodies (DSAs) are known risk factors for acute rejection and reduced graft survival after kidney transplantation. DSAs may also develop de novo DSAs (dnDSAs) after transplantation but the clinical implications of these antibodies remain uncertain. Methods: We undertook a systematic review of observational studies that examined the association between dnDSAs and graft and patient outcomes (through August 2017) with the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system of reporting used to assess the quality of evidence available...
April 11, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29649973/clinical-and-histological-evolution-after-de-novo-donor-specific-anti-human-leukocyte-antigen-antibodies-a-single-centre-retrospective-study
#11
Yassine Bouatou, Olivia Seyde, Solange Moll, Pierre-Yves Martin, Jean Villard, Sylvie Ferrari-Lacraz, Karine Hadaya
BACKGROUND: Donor-specific anti-human leukocyte antigen (HLA) antibodies (DSA) can be preformed or de novo (dn). Strategies to manage preformed DSA are well described, but data on the management and outcomes of dnDSA are lacking. METHODS: We performed a retrospective analysis of data from a single centre of the management and outcomes of 22 patients in whom a dnDSA was identified with contemporary and follow up biopsies. RESULTS: Evolution from baseline to follow up revealed a statistically significant loss of kidney function (estimated glomerular filtration rate: 45...
April 12, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29620542/donor-specific-hla-dq-antibodies-may-contribute-to-poor-graft-outcome-after-heart-transplantation
#12
Osama Omrani, Moheeb Alawwami, Jehad Buraiki, Nedim Selimovic
BACKGROUND: HLA-DQ donor-specific antibodies (DSA) are implicated in allograft dysfunction after renal and lung transplantation. Limited data exists on the impact of HLA-DQ antibodies on heart transplant patients. OBJECTIVE: To investigate the impact of DSA formation on allograft function and outcomes in heart transplant patients. DESIGN: Retrospective cohort study. SETTING: Collating post-transplantation patient data from computerized database in a tertiary hospital in Riyadh, Saudi Arabia from January 2006 to October 2014...
March 2018: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/29614336/peripheral-blood-immune-response-related-gene-analysis-for-evaluating-the-potential-risk-of-chronic-antibody-mediated-rejection
#13
Takayuki Yamamoto, Kenta Iwasaki, Kenta Murotani, Asami Takeda, Kenta Futamura, Manabu Okada, Makoto Tsujita, Takahisa Hiramitsu, Norihiko Goto, Shunji Narumi, Yoshihiko Watarai, Kunio Morozumi, Kazuharu Uchida, Takaaki Kobayashi
Noninvasive methods for the early diagnosis of chronic antibody-mediated rejection (cAMR) are desired for patients with de novo (dn) donor-specific HLA antibody (DSA). This study aimed to elucidate the clinical relevance of immune-related gene expression in peripheral blood of kidney transplant recipients. The expression levels of fourteen key molecules (Foxp3, CTLA-4, CCR7, TGF-β, IGLL-1, IL-10, ITCH, CBLB, Bcl-6, CXCR5, granzyme B, CIITA, Baff, TOAG-1/TCAIM) related to regulatory/cytotoxic function of immune cells were compared in 93 patients, which were divided into Groups A (clinical cAMR with dn DSA, n=16), B (subclinical cAMR with dn DSA, n=17), C (negative cAMR with dn DSA, n=21) and D (stable function without dn DSA, n=39)...
March 31, 2018: Human Immunology
https://www.readbyqxmd.com/read/29606262/-identifying-the-specific-causes-of-kidney-allograft-loss-a-population-based-study
#14
Charlotte Lohéac, Olivier Aubert, Alexandre Loupy, Christophe Legendre
INTRODUCTION: Results of kidney transplantation have been improving but long-term allograft survival remains disappointing. The objective of the present study was to identify the specific causes of renal allograft loss, to assess their incidence and long-term outcomes. METHODS: A total of 4783 patients from four French centres, transplanted between January 2004 and January 2014 were prospectively included. A total of 9959 kidney biopsies (protocol and for cause) performed between January 2004 and March 2015 were included...
April 2018: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/29603642/xenoreactive-antibodies-and-latent-fibrin-formation-in-vad-and-cardiac-transplant-recipients-can-confound-the-detection-and-measurement-of-anti-at1r-antibodies
#15
Martin Oaks, Karen Michel, Francis X Downey, Vinay Thohan
Autoantibodies to the angiotensin II type 1 receptor (AT1R) are thought to be important in antibody-mediated rejection (AMR), especially in the absence of anti-HLA antibodies. We used a variety of methods to examine the specificity of a commercially available kit designed to quantitate anti-AT1R antibodies. We found that fibrin formation in serum samples from patients awaiting cardiac transplantation with ventricular assist devices (VAD) can produce falsely elevated anti-AT1R values. In addition, absorption studies with a variety of cell lines with or without expression of the human AT1R, and those that express xenoantigens, suggest that many of the antibodies detected in the AT1R test system are heterophilic and have reactivity to xenoantigens...
March 30, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29603613/sensitization-in-transplantation-assessment-of-risk-star-2017-working-group-meeting-report
#16
Anat R Tambur, Patricia Campbell, Frans H Claas, Sandy Feng, Howard M Gebel, Annette M Jackson, Roslyn B Mannon, Elaine F Reed, Kathryn Tinckam, Medhat Askar, Anil Chandraker, Patricia P Chang, Monica Colvin, Anthony-Jake Demetris, Joshua M Diamond, Anne I Dipchand, Robert L Fairchild, Mandy L Ford, John Friedewald, Ronald G Gill, Denis Glotz, Hilary Goldberg, Ramsey Hachem, Stuart Knechtle, Jon Kobashigawa, Deborah J Levine, Joshua Levitsky, Michael Mengel, Edgar Milford, Kenneth A Newell, Jacqueline G O'Leary, Scott Palmer, Parmjeet Randhawa, John Smith, Laurie Snyder, Randall C Starling, Stuart Sweet, Timucin Taner, Craig J Taylor, Steve Woodle, Adriana Zeevi, Peter Nickerson
The presence of pre-existing (memory) or de novo donor specific HLA antibodies (DSA) is a known barrier to successful long-term organ transplantation. Yet, despite the fact that laboratory tools and our understanding of histocompatibility have advanced significantly in recent years, the criteria to define presence of a DSA and assign a level of risk for a given DSA varies markedly between centers. A collaborative effort between ASHI and the AST provided the logistical support for generating a dedicated multidisciplinary working group, which included experts in histocompatibility as well as renal, liver, heart and lung transplantation...
March 30, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29602833/post-transplant-natural-antibodies-associate-with-kidney-allograft-injury-and-reduced-long-term-survival
#17
Sarah B See, Olivier Aubert, Alexandre Loupy, Yokarla Veras, Xavier Lebreton, Baoshan Gao, Christophe Legendre, Dany Anglicheau, Emmanuel Zorn
Background The development of antibodies specific to HLA expressed on donor tissue (donor-specific antibodies [DSAs]) is a prominent risk factor for kidney graft loss. Non-HLA antibodies with pathogenic potential have also been described, including natural antibodies (Nabs). These IgG Nabs bind to immunogenic self-determinants, including oxidation-related antigens. Methods To examine the relationship of Nabs with graft outcomes, we assessed Nabs in blinded serum specimens collected from a retrospective cohort of 635 patients who received a transplant between 2005 and 2010 at Necker Hospital in Paris, France...
March 30, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29596992/complement-fixing-donor-specific-anti-hla-antibodies-and-kidney-allograft-failure
#18
Helena B Cazarote, Silvia Shimakura, Joana S Valdameri, Fabiana L C Contieri, Cristina Q C von Glehn, Carlos M Aita, Michelle F Susin, Vanessa Santos Sotomaior, Renata Glehn-Ponsirenas
Detection of donor-specific antibodies (DSA) has improved the risk classification and post-transplant evaluation of kidney recipients. Moreover, assessment of DSA C1q-binding ability has been shown to improve the individual risk classification of transplant patients for allograft loss, especially when detected after transplantation. The aim of this study was to evaluate the additional clinical impact of C1q-binding DSA detection in a population that was extensively monitored for DSA and MFI alterations. Forty-two kidney allograft recipients were followed-up at multiple time points for up to 5 years after transplantation for the presence of anti-HLA DSA-IgG total...
March 26, 2018: Transplant Immunology
https://www.readbyqxmd.com/read/29594146/early-conversion-from-tacrolimus-to-belatacept-in-a-highly-sensitized-renal-allograft-recipient-with-calcineurin-inhibitor-induced-de-novo-post-transplant-hemolytic-uremic-syndrome
#19
Vasishta S Tatapudi, Bonnie E Lonze, Ming Wu, Robert A Montgomery
Background: Kidney transplantation is the first-line therapy for patients with end-stage renal disease since it offers greater long-term survival and improved quality of life when compared to dialysis. The advent of calcineurin inhibitor (CNI)-based maintenance immunosuppression has led to a clinically significant decline in the rate of acute rejection and better short-term graft survival rates. However, these gains have not translated into improvement in long-term graft survival. CNI-related nephrotoxicity and metabolic side effects are thought to be partly responsible for this...
January 2018: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/29579848/anti-hla-antibodies-after-precocious-transplantectomy-by-vascular-thrombosis
#20
M Martínez Díaz, A Torío Ruíz, I Lorenzo González, R Rada Martínez, F Llamas Fuentes, C Gonzalvo Díaz, B J Cabezuelo Rodríguez, F J Centellas Pérez, J Ontañón Rodríguez, C Gómez Roldán
BACKGROUND: Our objective in this study was to determine the effects of early renal transplantectomy on patients and the production of anti-human leukocyte antigen (anti-HLA) antibodies. METHODS: Between January 2003 and May 2017, we analyzed a group of patients for the presence of specific HLA class I and/or II donor-specific antibodies (DSA), their panel-reactive antibodies (PRA), and the time period in which the antibodies were still detectable after transplantectomy...
March 2018: Transplantation Proceedings
keyword
keyword
32767
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"