keyword
MENU ▼
Read by QxMD icon Read
search

hla antibodies transplantation

keyword
https://www.readbyqxmd.com/read/27914916/-cytotoxicity-of-natural-anti-hla-antibodies-in-moroccan-patients-awaiting-for-kidney-transplantation
#1
Nadia Benseffaj, Sanae Ouadghiri, Asmaa Drissi Bourhanbour, Asmae Noor Zerrouki, Malika Essakalli
: The presence of anti-HLA antibodies in the serum of a patient result from an immune response produced during an immunizing event as transfusion, pregnancy or graft. These antibodies can be cytotoxic by activating the complement pathway via C1q and may cause organ rejection during the transplant. Some male patients awaiting kidney transplantation are seropositive for anti-HLA antibodies when they have no immunizing antecedent event. These antibodies are qualified as natural antibodies...
November 30, 2016: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/27914702/renal-xenotransplantation-experimental-progress-and-clinical-prospects
#2
Martin Wijkstrom, Hayato Iwase, Wayne Paris, Hidetaka Hara, Mohamed Ezzelarab, David K C Cooper
There are >100,000 patients waiting for kidney transplants in the United States and a vast need worldwide. Xenotransplantation, in the form of the transplantation of kidneys from genetically engineered pigs, offers the possibility of overcoming the chronic shortage of deceased and living human donors. These genetic manipulations can take the form of (i) knockout of pig genes that are responsible for the expression of antigens against which the primate (human or nonhuman primate) has natural "preformed" antibodies that bind and initiate complement-mediated destruction or (ii) the insertion of human transgenes that provide protection against the human complement, coagulation, or inflammatory responses...
November 30, 2016: Kidney International
https://www.readbyqxmd.com/read/27913812/association-between-cytokines-and-their-receptor-antagonist-gene-polymorphisms-and-clinical-risk-factors-and-acute-rejection-following-renal-transplantation
#3
SIqing Ding, Jianfei Xie, Qiquan Wan
BACKGROUND Acute rejection (AR) after renal transplantation affects both patient and graft survival. There is growing evidence of the genetic association between cytokine or its receptor antagonist and AR in solid organ transplantation. The objectives of this study were to investigate the role of recipient TNF β, IL-10, IL-1β, and IL-1 receptor antagonist (ra) gene polymorphism, as well as traditional clinical variables such as panel-reactive antibody (PRA) levels, donor type, and HLA mismatches in AR following renal transplantation...
December 3, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27906829/evidence-for-cd16a-mediated-nk-cell-stimulation-in-antibody-mediated-kidney-transplant-rejection
#4
Michael D Parkes, Philip F Halloran, Luis G Hidalgo
BACKGROUND: Natural killer (NK) cells localize in the microcirculation in antibody-mediated rejection (ABMR) and have been postulated to be activated by donor-specific anti-HLA antibodies triggering their CD16a Fc receptors. However, direct evidence for NK cell CD16a triggering in ABMR is lacking. We hypothesized that CD16a-inducible NK cell-selective transcripts would be expressed in human ABMR biopsies and would offer evidence for CD16a triggering. METHODS: We stimulated human NK cells through CD16a in vitro, characterized CD16a-inducible transcripts, and studied their expression in human kidney transplant biopsies with ABMR and in an extended human cell panel to determine their selectivity...
December 1, 2016: Transplantation
https://www.readbyqxmd.com/read/27896368/targeting-of-the-wt191-138-fragment-to-human-dendritic-cells-improves-leukemia-specific-t-cell-responses-providing-an-alternative-approach-to-wt1-based-vaccination
#5
Nergui Dagvadorj, Anne Deuretzbacher, Daniela Weisenberger, Elke Baumeister, Johannes Trebing, Isabell Lang, Carolin Köchel, Markus Kapp, Kerstin Kapp, Andreas Beilhack, Thomas Hünig, Hermann Einsele, Harald Wajant, Götz Ulrich Grigoleit
Due to its immunogenicity and overexpression concomitant with leukemia progression, Wilms tumor protein 1 (WT1) is of particular interest for immunotherapy of AML relapse after allogeneic hematopoietic stem cell transplantation (allo-HSCT). So far, WT1-specific T-cell responses have mainly been induced by vaccination with peptides presented by certain HLA alleles. However, this approach is still not widely applicable in clinical practice due to common limitations of HLA restriction. Dendritic cell (DC) vaccines electroporated with mRNA encoding full-length protein have also been tested for generating WT1-derived peptides for presentation to T-cells...
November 28, 2016: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27893614/the-presence-of-pretransplant-hla-antibodies-does-not-impact-the-development-of-chronic-lung-allograft-dysfunction-or-clad-related-death
#6
Oscar E Zazueta, Sara E Preston, Anna Moniodis, Sabrina Fried, Miae Kim, Keri Townsend, Isabelle Wood, Steve Boukedes, Indira Guleria, Phillip Camp, Souheil El-Chemaly, Ivan O Rosas, Anil Chandraker, Edgar Milford, Hilary J Goldberg
BACKGROUND: Development of Donor-specific Antibodies (DSA) after lung transplantation is associated with antibody mediated rejection (AMR), acute cellular rejection, and bronchiolitis obliterans syndrome (BOS); however, the significance of circulating antibodies before transplant remains unclear. METHODS: We performed a retrospective cohort study including recipients of primary lung transplants between 2008 and 2012.We assessed the impact of circulating human leukocyte (HLA) and noncytotoxic Donor Specific antibodies (DSA) detected before transplant on development of Chronic Lung Allograft Dysfunction (CLAD) or CLAD related death...
November 23, 2016: Transplantation
https://www.readbyqxmd.com/read/27890719/casting-a-smaller-net-into-a-bigger-donor-pool-a-single-center-s-experience-with-the-new-kidney-allocation-system
#7
Julie A Houp, Karl P Schillinger, Andrew J Eckstein, Renato M Vega, Niraj M Desai, Bonnie E Lonze, Annette M Jackson
The new kidney allocation system (KAS) provides additional allocation points for candidates with broad HLA sensitization in an effort to increase transplant rates for this underserved population. Following the implementation of KAS, our center lowered the HLA antibody threshold for listing unacceptable antigens from a cytotoxicity crossmatch level to a flow cytometric crossmatch level increasing Calculated Panel Reactive Antibody (CPRA) values and allocation points, yet restricting acceptable donor HLA phenotypes...
November 24, 2016: Human Immunology
https://www.readbyqxmd.com/read/27880980/impact-of-total-body-irradiation-on-successful-neutrophil-engraftment-in-unrelated-bone-marrow-or-cord-blood-transplantation
#8
Hideki Nakasone, Fuji Shigeo, Kimikazu Yakushijin, Makoto Onizuka, Akihito Shinohara, Kazuteru Ohashi, Koichi Miyamura, Naoyuki Uchida, Minoko Takanashi, Tatsuo Ichinohe, Yoshiko Atsuta, Takahiro Fukuda, Masao Ogata
Total body irradiation (TBI) has been thought to promote donor cell engraftment in allogeneic hematopoietic cell transplantation (HCT) from alternative donors. However, recent progress in HCT strategies may affect the clinical significance of TBI on neutrophil engraftment. With the use of a Japanese transplant registry database, we analyzed 3933 adult recipients (>15 y.o.) who underwent HCT between 2006 and 2013 from an 8/8 HLA-matched unrelated bone marrow donor (MUD, n=1367), an HLA-mismatched unrelated bone marrow donor (MMUD, n=1102), or unrelated cord blood (CBT, n=1464)...
November 23, 2016: American Journal of Hematology
https://www.readbyqxmd.com/read/27871759/rabbit-atg-or-basiliximab-induction-for-rapid-steroid-withdrawal-after-renal-transplantation-harmony-an-open-label-multicentre-randomised-controlled-trial
#9
Oliver Thomusch, Michael Wiesener, Mirian Opgenoorth, Andreas Pascher, Rainer Peter Woitas, Oliver Witzke, Bernd Jaenigen, Markus Rentsch, Heiner Wolters, Thomas Rath, Tülay Cingöz, Urs Benck, Bernhard Banas, Christian Hugo
BACKGROUND: Standard practice for immunosuppressive therapy after renal transplantation is quadruple therapy using antibody induction, low-dose tacrolimus, mycophenolate mofetil, and corticosteroids. Long-term steroid intake significantly increases cardiovascular risk factors with negative effects on the outcome, especially post-transplantation diabetes associated with morbidity and mortality. In this trial, we examined the efficacy and safety parameters of rapid steroid withdrawal after induction therapy with either rabbit antithymocyte globulin (rabbit ATG) or basiliximab in immunologically low-risk patients during the first year after kidney transplantation...
November 18, 2016: Lancet
https://www.readbyqxmd.com/read/27870356/clinical-and-immunological-relevance-of-antibodies-in-solid-organ-transplantation
#10
REVIEW
N K Mehra, A K Baranwal
The two important issues affecting recipients of solid organ transplants and of importance to immunologists are (i) sensitization of the recipient to HLA antigens and the resultant humoral immune response leading to the development of anti-HLA antibodies; and ii) development of robust assays for early detection of humoral rejection post-transplant. Evidence from several studies clearly indicates that presence of circulating anti-HLA antibodies especially donor specific leads to early graft loss and high titres of DSA may even lead to hyperacute or accelerated acute rejection...
December 2016: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/27864154/root-cause-analysis-of-limitations-of-virtual-crossmatch-for-kidney-allocation-to-highly-sensitized-patients
#11
Vivek Jani, Elizabeth Ingulli, Kristen Mekeel, Gerald P Morris
Efficient allocation of deceased donor organs depends upon effective prediction of immunologic compatibility based on donor HLA genotype and recipient alloantibody profile, referred to as virtual crossmatching (VCXM). VCXM has demonstrated utility in predicting compatibility, though there is reduced efficacy for patients highly sensitized against allogeneic HLA antigens. The recently revised deceased donor kidney allocation system (KAS) has increased transplantation for this group, but with an increased burden for histocompatibility testing and organ sharing...
November 15, 2016: Human Immunology
https://www.readbyqxmd.com/read/27862883/the-banff-2015-kidney-meeting-report-current-challenges-in-rejection-classification-and-prospects-for-adopting-molecular-pathology
#12
A Loupy, M Haas, K Solez, L Racusen, D Glotz, D Seron, B J Nankivell, R B Colvin, M Afrouzian, E Akalin, N Alachkar, S Bagnasco, J U Becker, L Cornell, C Drachenberg, D Dragun, H De Kort, I W Gibson, E S Kraus, C Lefaucheur, C Legendre, H Liapis, T Muthukumar, V Nickeleit, B Orandi, W Park, M Rabant, P Randhawa, E F Reed, C Roufosse, S V Seshan, B Sis, H K Singh, C Schinstock, A Tambur, A Zeevi, M Mengel
The XIII. Banff meeting, held in conjunction the Canadian Society of Transplantation in Vancouver, Canada, reviewed the clinical impact of updates of C4d-negative antibody-mediated rejection (ABMR) from the 2013 meeting, reports from active Banff Working Groups, the relationships of donor specific antibody tests (anti-HLA and non-HLA) with transplant histopathology, and questions of molecular transplant diagnostics. The use of transcriptome gene sets, their resultant diagnostic classifiers, or common key genes to supplement the diagnosis and classification of rejection, requires further consensus agreement and validation in biopsies...
November 10, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27862352/de-novo-donorspecific-anti-hla-antibodies-after-kidney-transplantation-are-associated-with-impaired-graft-outcome-independently-of-their-c1q-binding-ability
#13
Teresa Kauke, Cornelia Oberhauser, Viviane Lin, Michaela Coenen, Michael Fischereder, Andrea Dick, Ulf Schoenermarck, Markus Guba, Joachim Andrassy, Jens Werner, Bruno Meiser, Martin Angele, Manfred Stangl, Antje Habicht
BACKGROUND: Many aspects of post-transplant monitoring of donorspecific (DSA) and non-donorspecific (nDSA) anti-HLA antibodies on renal allograft survival are still unclear. Differentiating them by their ability to bind C1q may offer a better risk assessment. METHODS: We retrospectively investigated the clinical relevance of de novo C1q-binding anti-HLA antibodies on graft outcome in 611 renal transplant recipients. Acute rejection (AR), renal function and graft survival were assessed within a mean follow-up of 6...
November 18, 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/27855166/a-comparison-of-two-types-of-rabbit-antithymocyte-globulin-induction-therapy-in-immunological-high-risk-kidney-recipients-a-prospective-randomized-control-study
#14
F Burkhalter, S Schaub, Ch Bucher, L Gürke, A Bachmann, H Hopfer, M Dickenmann, J Steiger, I Binet
BACKGROUND: Induction treatment with rabbit polyclonal antithymocyte globulins (ATGs) is frequent used in kidney transplant recipients with donorspecific HLA antibodies and shows acceptable outcomes. The two commonly used ATGs, Thymoglobulin and ATG-F have slightly different antigen profile and antibody concentrations. The two compounds have never been directly compared in a prospective trial in immunological high-risk recipients. Therefore we performed a prospective randomized controlled study comparing the two compounds in immunological high-risk kidney recipients in terms of safety and efficacy...
2016: PloS One
https://www.readbyqxmd.com/read/27842860/-haploidentical-hematopoietic-stem-cell-transplantation-guidelines-from-the-francophone-society-of-marrow-transplantation-and-cellular-therapy-sfgm-tc
#15
Stéphanie Nguyen, Yves Chalandon, Claude Lemarie, Sophie Simon, Dominique Masson, Nathalie Dhedin, Felipe Suarez, Barbara Renaud, Amandine Charbonnier, Nabil Yafour, Sylvie François, Rémy Duléry, Didier Blaise, Ibrahim Yakoub-Agha, Marie-Thérèse Rubio
Haploidentical hematopoietic stem cell transplantation (HSCT) is being increasingly used due to improvement of the transplantation procedures allowing a reduction of graft-versus-host-disease (GVHD) and of transplant-related mortality (TRM). Such improvements have been particularly observed after administration of T-replete HSCT graft associated to an in vivo T cell depletion by the administration of high-doses of cyclophosphamide (HD-Cy) after transplantation. Here, we have analyzed the results of haplo-identical T replete HSC transplants, in particular, when performed with post-transplant HD-Cy in order to provide recommendations for the clinical practice...
November 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/27826602/a-novel-method-for-anti-hla-antibody-detection-using-personalized-peptide-arrays
#16
Pan Liu, Tomokazu Souma, Andrew Zu-Sern Wei, Xueying Xie, Xunrong Luo, Jing Jin
BACKGROUND: HLA mismatches are the primary cause of alloantibody-mediated rejection (AMR) in organ transplantation. To delineate antigenic and immunogenic potentials among individual HLA mismatches, information regarding antibody specificity at the epitope level, instead of the allelic level, is needed. METHODS: This study explores a direct screening method for HLA linear epitopes in kidney transplant patients. We custom synthesized a large panel of 15-residue HLA peptides in an array format and measured alloantibody reactivity to these peptides from the sera of post and/or pretransplant patients...
November 2016: Transplantation Direct
https://www.readbyqxmd.com/read/27822209/antibody-subclass-repertoire-and-graft-outcome-following-solid-organ-transplantation
#17
REVIEW
Nicole M Valenzuela, Michelle J Hickey, Elaine F Reed
Long-term outcomes in solid organ transplantation are constrained by the development of donor-specific alloantibodies (DSA) against human leukocyte antigen (HLA) and other targets, which elicit antibody-mediated rejection (ABMR). However, antibody-mediated graft injury represents a broad continuum, from extensive complement activation and tissue damage compromising the function of the transplanted organ, to histological manifestations of endothelial cell injury and mononuclear cell infiltration but without concurrent allograft dysfunction...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27821629/polyomavirus-reactivation-and-immune-responses-to-kidney-specific-self-antigens-in-transplantation
#18
Michael E Seifert, Muthukumar Gunasekaran, Timothy A Horwedel, Reem Daloul, Gregory A Storch, Thalachallour Mohanakumar, Daniel C Brennan
Humoral immune responses against donor antigens are important determinants of long-term transplant outcomes. Reactivation of the polyomavirus BK has been associated with de novo antibodies against mismatched donor HLA antigens in kidney transplantation. The effect of polyomavirus reactivation (BK viremia or JC viruria) on antibodies to kidney-specific self-antigens is unknown. We previously reported excellent 5-year outcomes after minimization of immunosuppression for BK viremia and after no intervention for JC viruria...
November 7, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27818660/unraveling-the-role-of-allo-antibodies-and-transplant-injury
#19
REVIEW
Yoshiko Matsuda, Minnie M Sarwal
Alloimmunity driving rejection in the context of solid organ transplantation can be grossly divided into mechanisms predominantly driven by either T cell-mediated rejection (TCMR) and antibody-mediated rejection (ABMR), though the co-existence of both types of rejections can be seen in a variable number of sampled grafts. Acute TCMR can generally be well controlled by the establishment of effective immunosuppression (1, 2). Acute ABMR is a low frequency finding in the current era of blood group and HLA donor/recipient matching and the avoidance of engraftment in the context of high-titer, preformed donor-specific antibodies...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27814594/cardiac-allograft-vasculopathy-microvascular-arteriolar-capillaries-capioles-and-survival
#20
Carlos A Labarrere, Beate R Jaeger, Ghassan S Kassab
Cardiac allograft vasculopathy (CAV) is a serious complication of heart transplantation in adults and children. Risk factors include human leukocyte antigen mismatches, number and duration of rejection episodes, type of immunosuppression, antibody-mediated rejection, hypertension, hyperlipidemia, obesity, smoking, diabetes, cytomegalovirus infection, mode of donor brain death, donor age and ischemia/reperfusion injury. Endothelial injury and dysfunction in CAV are characterized by changes in adhesion molecules and up-regulation of major histocompatibility class II antigens followed by endothelial activation of complement C4d...
January 1, 2017: Frontiers in Bioscience (Elite Edition)
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"