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https://www.readbyqxmd.com/read/28230645/clinical-scale-rapid-autologous-bk-virus-specific-t-cell-line-generation-from-kidney-transplant-recipients-with-active-viremia-for-adoptive-immunotherapy
#1
Caroline Lamarche, Julie Orio, Victoria Georges-Tobar, Thomas Pincez, Mathieu Goupil, Amina Dahmani, Cedric Carli C, Ann Brasey, Lambert Busque, Jean-Sébastien Delisle
BACKGROUND: Polyomavirus-associated nephropathy (PVAN) following BK virus reactivation in kidney transplant recipients (KTR) can compromise graft survival. Lowering immunosuppression is the only established approach to prevent or treat PVAN but nonspecifically increasing host immune competence also augments rejection risk. Ex vivo T cell stimulation/expansion offers the possibility to generate BK-specific T cell lines for adoptive immunotherapy. The objective of this study was to develop and characterize a clinical scale protocol to generate BK-specific T cell lines from viremic KTR...
February 23, 2017: Transplantation
https://www.readbyqxmd.com/read/28230639/mammalian-target-of-rapamycin-inhibition-clinical-transplantation-liver
#2
Björn Nashan
The evidence base concerning use of mammalian target of rapamycin (mTOR) inhibitor therapy after liver transplantation is evolving rapidly, clarifying their benefits and disadvantages in different clinical scenarios. The H2304 trial showed that starting everolimus at 1 month posttransplant, with reduced tacrolimus, achieves a sustained improvement in renal function versus standard tacrolimus-based therapy, with at least equivalent immunosuppressive efficacy. Randomized studies evaluating early discontinuation of CNI therapy after introduction of an mTOR inhibitor consistently demonstrated a substantial improvement in renal function versus standard CNI therapy...
February 23, 2017: Transplantation
https://www.readbyqxmd.com/read/28228754/proofreading-of-peptide-mhc-complexes-through-dynamic-multivalent-interactions
#3
REVIEW
Christoph Thomas, Robert Tampé
The adaptive immune system is able to detect and destroy cells that are malignantly transformed or infected by intracellular pathogens. Specific immune responses against these cells are elicited by antigenic peptides that are presented on major histocompatibility complex class I (MHC I) molecules and recognized by cytotoxic T lymphocytes at the cell surface. Since these MHC I-presented peptides are generated in the cytosol by proteasomal protein degradation, they can be metaphorically described as a window providing immune cells with insights into the state of the cellular proteome...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28226404/the-effect-of-cortex-medulla-proportions-on-molecular-diagnoses-in-kidney-transplant-biopsies-rejection-and-injury-can-be-assessed-in-medulla
#4
Katelynn S Madill-Thomsen, Roger C Wiggins, Farsad Eskandary, Georg A Böhmig, Philip F Halloran
Histologic assessment of kidney transplant biopsies relies on cortex rather than medulla, but for microarray studies, the proportion cortex in a biopsy is typically unknown and could affect the molecular readings. The present study aimed to develop a molecular estimate of proportion cortex in biopsies and examine its effect on molecular diagnoses. Microarrays from 26 kidney transplant biopsies divided into cortex and medulla components and processed separately showed that many of the most significant differences were in glomerular genes e...
February 22, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28224772/effects-of-neutralization-by-soluble-abh-antigens-produced-by-transplanted-kidneys-from-abo-incompatible-secretor-donors
#5
Jieun Kim, Sinyoung Kim, In Sik Hwang, Jong Rak Choi, Jae Geun Lee, Yu Seun Kim, Myoung Soo Kim, Hyun Ok Kim
BACKGROUND: Grafts survive despite blood group antigens on the transplant being continuously exposed to antibodies in the blood of recipients in ABO-incompatible kidney transplantation (ABOi KT), owing to the mechanism of accommodation. We analyzed the immunodynamics of soluble ABH antigens in allografts from secretor donors and the influence of such immunodynamics on accommodation and subsequent graft survival in ABOi KT. METHODS: The genotype of a known human β-galactoside α-1,2-fucosyltransferase gene (FUT2), which determines soluble ABH antigen secretor status, was established in 32 donors for ABOi KT at the Severance Hospital, from June 2010 to July 2015...
May 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28224470/three-patients-treated-with-sofosbuvir-plus-ledipasvir-for-recurrent-hepatitis-c-after-liver-transplantation
#6
Tomokazu Kawaoka, Michio Imamura, Kei Morio, Yuki Nakamura, Masataka Tsuge, Clair Nelson Hayes, Yoshiiku Kawakami, Hiroshi Aikata, Hidenori Ochi, Kouhei Ishiyama, Hideki Ohdan, Kazuaki Chayama
We previously reported results of interferon (IFN)-free daclatasvir and asunaprevir for the treatment of recurrent hepatitis C virus (HCV) genotype 1 infection after liver transplantation (LT). Here we report three patients who achieved viral response with no effect on the blood concentrations of immunosuppressive agents following sofosbuvir plus ledipasvir treatment. The first patient was a 68-year-old female with HCV-related liver cirrhosis who failed to respond to pegylated-IFN and ribavirin (PEG-IFN/RBV) after living donor LT...
February 21, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28223721/current-and-future-therapies-for-inherited-cholestatic-liver-diseases
#7
REVIEW
Wendy L van der Woerd, Roderick Hj Houwen, Stan Fj van de Graaf
Familial intrahepatic cholestasis (FIC) comprises a group of rare cholestatic liver diseases associated with canalicular transport defects resulting predominantly from mutations in ATP8B1, ABCB11 and ABCB4. Phenotypes range from benign recurrent intrahepatic cholestasis (BRIC), associated with recurrent cholestatic attacks, to progressive FIC (PFIC). Patients often suffer from severe pruritus and eventually progressive cholestasis results in liver failure. Currently, first-line treatment includes ursodeoxycholic acid in patients with ABCB4 deficiency (PFIC3) and partial biliary diversion in patients with ATP8B1 or ABCB11 deficiency (PFIC1 and PFIC2)...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28222086/equivalence-study-of-two-temperature-measurement-methods-in-febrile-adult-patients-with-cancer
#8
Tina M Mason, Abdelbaki Boubekri, Jennifer Lalau, Amy Patterson, Susan R Hartranft, Steven K Sutton
PURPOSE/OBJECTIVES: To assess equivalence of temperatures taken via temporal artery and oral methods in febrile inpatients with cancer.
. DESIGN: Repeated measures equivalence design.
. SETTING: 24-bed hematology-oncology unit and 36-bed blood and marrow transplantation unit at H. Lee Moffitt Cancer Center and Research Institute, a National Cancer Institute-designated comprehensive cancer center in Tampa, Florida.
. SAMPLE: Convenience sample of 58 febrile inpatients using 60 temperature measurements...
March 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28221173/new-developments-in-transplant-proteomics
#9
Julie Ho, Patricia Hirt-Minkowski, John A Wilkins
PURPOSE OF REVIEW: Despite modern immunosuppression, renal allograft rejection remains a major contributor to graft loss. Novel biomarkers may help improve posttransplant outcomes through the early detection and treatment of rejection. Our objective is to provide an overview of proteomics, review recent discovery-based rejection studies, and explore innovative approaches in biomarker development. RECENT FINDINGS: Urine MMP7 was identified as a biomarker of subclinical and clinical rejection using two-dimensional liquid chromatography tandem-mass spectrometry (LC-MS/MS) and improved the overall diagnostic discrimination of urine CXCL10 : Cr alone for renal allograft inflammation...
February 17, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28220931/the-role-of-extracorporeal-photopheresis-in-the-management-of-cutaneous-t-cell-lymphoma-graft-versus-host-disease-and-organ-transplant-rejection-a-consensus-statement-update-from-the-uk-photopheresis-society
#10
Arun Alfred, Peter C Taylor, Fiona Dignan, Khaled El-Ghariani, James Griffin, Andrew R Gennery, Denise Bonney, Emma Das-Gupta, Sarah Lawson, Ram K Malladi, Kenneth W Douglas, Tracey Maher, Julie Guest, Laura Hartlett, Andrew J Fisher, Fiona Child, Julia J Scarisbrick
Extracorporeal photopheresis (ECP) has been used for over 35 years in the treatment of erythrodermic cutaneous T-cell lymphoma (CTCL) and over 20 years for chronic and acute graft-versus-host disease (GvHD) and solid organ transplant rejection. ECP for CTCL and GvHD is available at specialised centres across the UK. The lack of prospective randomised trials in ECP led to the development of UK Consensus Statements for patient selection, treatment schedules, monitoring protocols and patient assessment criteria for ECP...
February 21, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28220766/immunological-biomarkers-and-long-term-graft-survival-prospective-follow-up-of-457-kidney-transplant-recipients
#11
Michał Ciszek, Krzysztof Mucha, Bartosz Foroncewicz, Dorota Żochowska, Maciej Kosieradzki, Tadeusz Grochowiecki, Magdalena Durlik, Andrzej Górski, Leszek Pączek
INTRODUCTION    Antibodies against donor`s human leukocyte antigens (HLA) play a significant role in the pathogenesis of antibody mediated rejection, although their role during the late post-transplant period is unknown. A non-HLA polymorphic antigenic system like major histocompatibility class I chain-related antigen A (MICA) might be another target for antibody responses involved in rejection. OBJECTIVES    We conducted a 7-year prospective study to determine the effect of positivity for anti-HLA and anti-MICA antibodies on kidney graft survival...
February 15, 2017: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/28220742/calcific-uraemic-arteriolopathy-calciphylaxis-in-patients-on-renal-replacement-therapy
#12
S Sebastian, H F Jordaan, J W Schneider, M R Moosa, M R Davids
BACKGROUND: Calcific uraemic arteriolopathy (calciphylaxis) is an unusual and potentially fatal condition characterised by small-vessel calcification and ischaemic skin necrosis. It mainly affects patients with end-stage renal disease (ESRD) on haemodialysis, but may rarely occur in the absence of ESRD in conditions such as primary hyperparathyroidism, malignancy, alcoholic liver disease and connective tissue disease. METHODS: We reviewed the records of all patients diagnosed with calciphylaxis while on renal replacement therapy at Tygerberg Hospital, Cape Town, South Africa, between 1990 and 2014, to describe its presentation, course and final outcome...
January 30, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28220684/living-donor-liver-transplantation-during-the-first-three-months-of-life
#13
Mureo Kasahara, Seisuke Sakamoto, Kengo Sasaki, Hajime Uchida, Toshihiro Kitajima, Takanobu Shigeta, Soichi Narumoto, Yoshihiro Hirata, Akinari Fukuda
BACKGROUND: Living donor liver transplantation is now an established technique for treating children with end-stage liver disease. Few data exist about liver transplantation for exclusively young infants, especially infants of <3 months of age. We report our single-center experience with 12 cases in which living donor liver transplantation (LT) was performed during the first 3 months of life and compare the results with those of older infants who underwent LT. All of the patients were treated at the National Center of Child Health and Development, Tokyo, Japan...
February 21, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28220117/the-tumorigenicity-of-multipotent-adult-germline-stem-cells-transplanted-into-the-heart-is-affected-by-natural-killer-cells-and-by-cyclosporine-a-independent-of-its-immunosuppressive-effects
#14
Daniela Hübscher, Diana Kaiser, Leslie Elsner, Sebastian Monecke, Ralf Dressel, Kaomei Guan
Transplantation of stem cells represents an upcoming therapy for many degenerative diseases. For clinical use, transplantation of pluripotent stem cell-derived cells should lead to integration of functional grafts without immune rejection or teratoma formation. Our previous studies showed that the risk of teratoma formation is highly influenced by the immune system of the recipients. In this study, we have observed a higher teratoma formation rate when undifferentiated so-called multipotent adult germline stem cells (maGSCs) were transplanted into the heart of T, B, and natural killer (NK) cell-deficient RAG2(-/-)γc(-/-) mice than in RAG2(-/-) mice, which still have NK cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28219742/the-use-of-nanoscaffolds-and-dendrimers-in-tissue-engineering
#15
REVIEW
Bapi Gorain, Muktika Tekade, Prashant Kesharwani, Arun K Iyer, Kiran Kalia, Rakesh Kumar Tekade
To avoid tissue rejection during organ transplantation, research has focused on the use of tissue engineering to regenerate required tissues or organs for patients. The biomedical applications of hyperbranched, multivalent, structurally uniform, biocompatible dendrimers in tissue engineering include the mimicking of natural extracellular matrices (ECMs) in the 3D microenvironment. Dendrimers are unimolecular architects that can incorporate a variety of biological and/or chemical substances in a 3D architecture to actively support the scaffold microenvironment during cell growth...
February 17, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28219603/acute-rejection-of-a-kidney-transplant-in-a-patient-with-common-variable-immunodeficiency-a-case-report
#16
O Al Nimri, A Rajput, E Martinez, J M Fahrenholz, P Paueksakon, A Langone, B P Concepcion
Common variable immunodeficiency is a primary immunodeficiency characterized by hypogammaglobulinemia and recurrent bacterial infections. We report a case of a 44-year-old male patient with end-stage renal disease and an established diagnosis of common variable immunodeficiency who underwent a living unrelated kidney transplant. He remained nearly infection free on maintenance immunoglobulin replacement. However, his posttransplant course was complicated by acute rejection that ultimately led to allograft loss...
March 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28219593/betel-nut-chewing-is-associated-with-reduced-tacrolimus-concentration-in-taiwanese-liver-transplant-recipients
#17
W-Y Chen, C-Y Lee, P-Y Lin, C-E Hsieh, C-J Ko, K-H Lin, C-C Lin, Y-Z Ming, Y-L Chen
PURPOSE: Studies have shown that arecoline, the major alkaloid component of betel nuts, alters the activity of enzymes in the cytochrome P450 (CYP-450) family. Tacrolimus, an immunosuppressant that protects against organ rejection in transplant recipients, not only is mainly metabolized by CYP3A enzymes but also has a narrow therapeutic range. We aimed to investigate whether dose-adjusted blood trough levels of tacrolimus differed over time between betel nut-chewing and non-betel nut-chewing liver transplant recipients...
March 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28219580/use-of-anti-thymocyte-globulin-for-induction-therapy-in-cardiac-transplantation-a-review
#18
V Ruan, L S C Czer, M Awad, M Kittleson, J Patel, F Arabia, F Esmailian, D Ramzy, J Chung, M De Robertis, A Trento, J A Kobashigawa
The most common causes of death after heart transplantation (HTx) include acute rejection and multi-organ failure in the early period and malignancy and cardiac allograft vasculopathy (CAV) in the late period. Polyclonal antibody preparations such as rabbit anti-thymocyte globulin (ATG) may reduce early acute rejection and the later occurrence of CAV after HTx. ATG therapy depletes T cells, modulates adhesion and cell-signaling molecules, interferes with dendritic cell function, and induces B-cell apoptosis and regulatory and natural killer T-cell expansion...
March 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28219579/glomerular-diseases-and-renal-transplantation-pathogenic-pathways-and-evolution-of-therapeutic-interventions
#19
S Marinaki, C Skalioti, J Boletis
Glomerular diseases and renal transplantation are the main fields of nephrology in which the immune system plays a prevalent role. Glomerular diseases have traditionally been attributed to auto-immune conditions, whereas allograft rejection has been considered an allo-immune response. However, common immunopathologic mechanisms that include Toll-like receptors, complement and B-cell activation, as well as genetic and infectious factors appear to be involved in the pathogenesis of both entities. Novel therapeutic regimens directed against specific targets of the immune system show promising results in glomerulopathies as well as in renal transplantation...
March 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28217592/profile-of-infections-in-renal-transplant-recipients-from-india
#20
Arun Kumar, Chaturbhuj Agarwal, Ashok K Hooda, Ashutosh Ojha, Mukesh Dhillon, K V S Hari Kumar
BACKGROUND: Infectious disorders are a major cause of concern in renal transplant recipients (RTRs) leading to considerable morbidity and mortality. We studied the profile and outcomes of infectious disorders in a cohort of RTR. MATERIALS AND METHODS: In this prospective, observational study, we evaluated all RTR who presented with the features of infection. We also included asymptomatic patients with microbiological evidence of infection. We excluded patients with acute rejection, drug toxicity, and malignancy...
July 2016: Journal of Family Medicine and Primary Care
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