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Renal immunology

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https://www.readbyqxmd.com/read/29024716/accelerated-humoral-renal-allograft-rejection-due-to-hla-c14-mediated-allosensitization-to-hla-bw6
#1
Stephen P Persaud, Brian Duffy, Donna L Phelan, Thalachallour Mohanakumar, Rowena Delos Santos, Joseph P Gaut, Chang Liu
OBJECTIVES: To investigate immunological mechanisms underlying accelerated antibody-mediated rejection (AMR) of a living-related renal allograft in a patient with no detectable antibodies to donor human leukocyte antigens (HLA) in pre-transplant sera. METHODS: Pre- and post-transplant HLA antibody specificities were determined by single-antigen bead assay, and crossmatching was performed by flow cytometry- and complement-dependent cytotoxicity-based methods. Intermediate- and high-resolution HLA typing were performed by molecular methods...
October 9, 2017: Human Immunology
https://www.readbyqxmd.com/read/29021720/burn-injury-review-of-pathophysiology-and-therapeutic-modalities-in-major-burns
#2
I Kaddoura, G Abu-Sittah, A Ibrahim, R Karamanoukian, N Papazian
Despite a considerable decrease in their incidence worldwide, burn injuries remain one of the commonest forms of trauma and account for a weighty proportion of trauma cases in health-care emergencies around the globe. Although the latest data reveal a substantial decline in burn-related mortality and hospital admissions in the US over the past three decades, severe thermal injuries continue to trigger devastating morbidity and significant mortality while their management remains a dynamic challenge for the entire medical and paramedical community...
June 30, 2017: Annals of Burns and Fire Disasters
https://www.readbyqxmd.com/read/28988508/immunological-effects-of-everolimus-in-patients-with-metastatic-renal-cell-cancer
#3
Charlotte M Huijts, Saskia J Santegoets, Tamarah D de Jong, Henk M Verheul, Tanja D de Gruijl, Hans J van der Vliet
The mammalian target of rapamycin (mTOR) is a crucial kinase present in all cells. Besides its role in the regulation of cell-growth, proliferation, angiogenesis, and survival of malignant tumors, mTOR additionally plays an important role in immune regulation by controlling the balance between effector T cells and regulatory T cells (Tregs). This critically affects the suppressive state of the immune system. Here, the systemic immunological effects of everolimus treatment were comprehensively investigated in five patients with metastatic renal cell cancer...
October 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/28980912/influence-of-antibody-profile-in-clinical-features-and-prognosis-in-a-cohort-of-spanish-patients-with-systemic-sclerosis
#4
Nerea Iniesta Arandia, Carmen Pilar Simeón-Aznar, Alfredo Guillén Del Castillo, Dolores Colunga Argüelles, Manuel Rubio-Rivas, Luis Trapiella Martínez, Francisco José García Hernández, Luis Sáez Comet, María Victoria Egurbide Arberas, Norberto Ortego-Centeno, Mayka Freire, Begoña Marí Alfonso, José Antonio Vargas Hitos, Juan José Ríos Blanco, José Antonio Todolí Parra, Monica Rodríguez-Carballeira, Adela Marín Ballvé, Antonio Javier Chamorro Fernández, Xavier Pla Salas, Ana Belen Madroñero Vuelta, Manuel Ruiz Muñoz, Vicent Fonollosa Pla, Gerard Espinosa
OBJECTIVES: To assess the clinical manifestations and prognosis of Spanish patients with systemic sclerosis (SSc) according to their immunological profile. METHODS: From the Spanish Scleroderma Study Group or RESCLE (Registro de ESCLErodermia as Spanish nomenclature) Registry we selected those patients in which anti-centromere (ACA), anti-topoisomerase I (ATA), and anti-RNA polymerase III (ARA) antibodies had been determined, and a single positivity for each SSc specific antibody was detected...
September 21, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28975469/establishment-of-a-bioluminescent-renca-cell-line-for-renal-carcinoma-research
#5
Jie Ding, Chao Wang, Xiaofeng Chang
PURPOSE: Luciferase modification of tumour cells enables early and non-invasive imaging to detect tumour growth in situ and could provide sensitive and effective detection of carcinoma during research and therapy. METHODS: Renca cells, a murine renal carcinoma cell line, were infected with lentivirus expressing luciferase to obtain Renca-luc. The proliferation, invasion, and migration of Renca and Renca-luc cell lines were compared using colorimetric, Boyden chamber, and wound-healing assays...
October 3, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28975380/immunological-classification-of-renal-cell-carcinoma-patients-based-on-phenotypic-analysis-of-immune-check-point-molecules
#6
Atsunari Kawashima, Takayuki Kanazawa, Kumiko Goto, Mitsunobu Matsumoto, Akiko Morimoto-Okazawa, Kota Iwahori, Takeshi Ujike, Akira Nagahara, Kazutoshi Fujita, Motohide Uemura, Norio Nonomura, Hisashi Wada
OBJECTIVES: To clarify comprehensive immunological signature patterns of tumour tissue-infiltrating lymphocytes in patients with renal cell carcinoma and show its clinical significance. MATERIALS AND METHODS: We investigated the surface marker expressions of tumour tissue-infiltrating lymphocytes quantitatively and classified them based on their functional populations. We extracted 109 sets of tumour tissue-infiltrating lymphocytes from 80 patients who underwent surgical resection of renal cell carcinoma, of which 44 tumour tissue-infiltrating lymphocytes were multiply extracted from 15 patients...
October 3, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28962193/doxazosin-attenuates-renal-matrix-remodeling-mediated-by-anti-%C3%AE-1-adrenergic-receptor-antibody-in-a-rat-model-of-diabetes-mellitus
#7
Lin-Shuang Zhao, Yan-Yan Lin, Yi Liu, Chun-Yan Xu, Ye Liu, Wei-Wei Bai, Xue-Ying Tan, De-Zhong Li, Jin-Ling Xu
Diabetic nephropathy is a major complication of diabetes mellitus (DM). Recent studies suggest that immunological mechanisms have a key role in the pathogenesis of DM, therefore these mechanisms may be important targets for diabetes therapy. The present study evaluated the effects of anti-α1-adrenergic receptor antibody (α1-R Ab) mediation and doxazosin treatment in a rat model of DM. It was observed that levels of 24-h urinary protein, serum creatinine and transforming growth factor-β1 in DM were significantly increased after α1-R Ab mediation (all P<0...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28953652/successful-kidney-transplantation-across-a-positive-complement-dependent-cytotoxicity-crossmatch-by-using-c1q-assay-directed-bortezomib-assisted-desensitization-a-case-report
#8
Juhan Lee, Borae G Park, Hyang Sook Jeong, Youn Hee Park, Sinyoung Kim, Beom Seok Kim, Hye Jin Kim, Kyu Ha Huh, Hyeon Joo Jeong, Yu Seun Kim
RATIONALE: Human leukocyte antigen (HLA) is the major immunologic barrier in kidney transplantation (KT). Various desensitization protocols to overcome the HLA barrier have increased the opportunity for transplantation in sensitized patients. In addition, technological advances in solid-phase assays have permitted more comprehensive assessment of donor-specific antibodies. Although various desensitization therapies and immunologic techniques have been developed, the final transplantation decision is still based on the classic complement-dependent cytotoxicity (CDC) crossmatch (XM) technique...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28947349/contribution-of-inflammatory-pathways-to-fabry-disease-pathogenesis
#9
REVIEW
Paula Rozenfeld, Sandro Feriozzi
Lysosomal storage diseases are usually considered to be pathologies in which the passive deposition of unwanted materials leads to functional changes in lysosomes. Lysosomal deposition of unmetabolized glycolipid substrates stimulates the activation of pathogenic cascades, including immunological processes, and particularly the activation of inflammation. In lysosomal storage diseases, the inflammatory response is continuously being activated because the stimulus cannot be eliminated. Consequently, inflammation becomes a chronic process...
September 13, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28940837/a-case-of-the-nephrotic-syndrome-in-bone-marrow-transplantation-recipient-histologically-showing-overlapped-glomerular-lesions-of-thrombotic-microangiopathy-and-membranous-nephropathy
#10
Naoko Masuzawa, Ayako Nishimura, Takashi Kitani, Keiichi Tamagaki, Mio Sugitani, Hisao Nagoshi, Junya Kuroda, Eiichi Konishi
Nephrotic syndrome (NS) rarely occurs in post-hematopoietic stem cell transplantation (HSCT) recipients but represents the renal manifestation of graft-versus-host disease (GVHD). Membranous nephropathy (MN) accounts for almost two thirds of post-HSCT NS and is caused by immune complex deposition. Renal thrombotic microangiopathy (TMA) without fulfillment of clinical criteria for TMA has been underreported because of reduced opportunity for histological examination. However, renal TMA has recently been reported in association with GVHD and humoral immunological reactions...
September 20, 2017: Pathology International
https://www.readbyqxmd.com/read/28937406/tolerance-in-xenotransplantation
#11
Kazuhiko Yamada, Megan Sykes, David H Sachs
PURPOSE OF REVIEW: This review describes recent progress in tolerance-inducing strategies across xenogeneic immunological barriers as well as the potential benefit of a tolerance strategy for islets and kidney xenotransplantation. RECENT FINDINGS: Using advanced gene editing technologies, xenotransplantation from multitransgenic alpha-1,3-galactosyltransferase knockout pigs has demonstrated marked prolongation of renal xenograft survival, ranging from days to greater than several months for life-supporting kidneys, and more than 2 years in a heterotopic nonlife-supporting cardiac xenograft model...
September 20, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28923650/does-renal-tubular-injury-induced-local-tissue-hypoxia-involve-post-transplantation-erythrocytosis
#12
A Unal, S Ata, C Karakurkcu, M Z Ciraci, I Kocyigit, M H Sipahioglu, B Tokgoz, O Oymak
BACKGROUND: The pathogenesis of post-transplantation erythrocytosis (PTE) is not well understood and appears to be multifactorial. Our hypothesis in this study was that several factors, including toxicity of calcineurin inhibitor, immunologic factors, and chronic allograft nephropathy, can trigger local tissue hypoxia in peritubular interstitium, which is where production of erythropoietin (EPO) takes place. This local interstitial tissue hypoxia can cause an increase in renal EPO production, which induces the development of PTE...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28919557/synergistic-effects-of-dendritic-cell-targeting-and-laser-microporation-on-enhancing-epicutaneous-skin-vaccination-efficacy
#13
Yoan Machado, Sanne Duinkerken, Veronika Hoepflinger, Melissa Mayr, Evgeniia Korotchenko, Almedina Kurtaj, Isabel Pablos, Markus Steiner, Angelika Stoecklinger, Joyce Lübbers, Maximillian Schmid, Uwe Ritter, Sandra Scheiblhofer, Michael Ablinger, Verena Wally, Sarah Hochmann, Anna M Raninger, Dirk Strunk, Yvette van Kooyk, Josef Thalhamer, Richard Weiss
Due to its unique immunological properties, the skin is an attractive target tissue for allergen-specific immunotherapy. In our current work, we combined a dendritic cell targeting approach with epicutaneous immunization using an ablative fractional laser to generate defined micropores in the upper layers of the skin. By coupling the major birch pollen allergen Bet v 1 to mannan from S. cerevisiae via mild periodate oxidation we generated hypoallergenic Bet-mannan neoglycoconjugates, which efficiently targeted CD14(+) dendritic cells and Langerhans cells in human skin explants...
September 14, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28914855/-late-onset-rheumatoid-arthritis-in-a-patient-with-successfully-treated-iga-nephropathy
#14
N V Chebotareva, I N Bobkova, S V Gulyaev
The paper describes a rare clinical case of rheumatoid arthritis (RA) that developed in a patient 9 years after diagnosing IgA nephropathy. Kidney disease was characterized by a stable course with moderate urinary syndrome, hypertension, and reduced renal function. Immunosuppressive therapy using glucocorticosteroids and then mycophenolic acid led to remission of nephritis and recovery of renal function. However, the absence of nephritis activity and discontinuation of immunosuppressants was responsible for articular syndrome...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28904948/recent-progress-in-deciphering-the-etiopathogenesis-of-primary-membranous-nephropathy
#15
REVIEW
Andreas Kronbichler, Jun Oh, Björn Meijers, Gert Mayer, Jae Il Shin
Primary membranous nephropathy (MN) is the leading cause of nephrotic syndrome in adults. Discovery of several antibodies has contributed to an increased understanding of MN. Antibodies against the M-type phospholipase A2 receptor (PLA2R) are present in 50-100% with primary MN and are associated with a lower frequency of spontaneous remission. High levels are linked with a higher probability of treatment resistance, higher proteinuria, and impaired renal function, as well as a more rapid decline of kidney function during follow-up...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28903520/hepatic-renal-hematologic-and-inflammatory-markers-in-hiv-infected-children-on-long-term-suppressive-antiretroviral-therapy
#16
Ann J Melvin, Meredith Warshaw, Alexandra Compagnucci, Yacine Saidi, Linda Harrison, Anna Turkova, Gareth Tudor-Williams
Background: Data on long-term toxicity of antiretroviral therapy (ART) in HIV-infected children are sparse. PENPACT-1 was an open-label trial in which HIV-infected children were assigned randomly to receive protease inhibitor (PI)- or nonnucleoside reverse-transcriptase inhibitor (NNRTI)-based ART. Methods: We examined changes in clinical, immunologic, and inflammatory markers from baseline to year 4 in the subset of children in the PENPACT-1 study who experienced viral suppression between week 24 and year 4 of ART...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28900328/immune-checkpoint-blockers-and-ovarian-cancer
#17
REVIEW
Chinmoy K Bose
Although the idea, called "cancer immunotherapy," is very appealing and has previously been shown to work in several mouse models of cancer, it has in general been very difficult to translate cancer immunotherapy approaches to humans. Because of this frustration, by the 1990s, many scientists and biotechnology companies had given up on the idea of cancer immunotherapy. After few years, first detection T-cell suppression of effect of cytotoxic T-lymphocyte antigen-4 (CTLA4) molecule was established. Antibody (Ab) to CTLA4 could increase T-cell starting a completely new age of tumor immunology...
April 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28894081/eculizumab-in-renal-transplantation-a-2017-update
#18
Ryszard Grenda, Magdalena Durlik
Despite ongoing progress in renal transplantation, there are still emerging challenges in this field, including consequences of ischemia-reperfusion injury (IRI), pre-existing and produced de novo anti-HLA donor-specific antibodies (DSA), and acute/chronic humoral rejection (AMR), as well as the recurrence of atypical hemolytic-uremic syndrome (aHUS) in genetically predisposed patients. All these conditions are related to the prominent role of the complement system and are deleterious to the fate of the renal graft...
September 12, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28893184/the-canadian-hiv-and-aging-cohort-study-determinants-of-increased-risk-of-cardio-vascular-diseases-in-hiv-infected-individuals-rationale-and-study-protocol
#19
Madeleine Durand, Carl Chartrand-Lefebvre, Jean-Guy Baril, Sylvie Trottier, Benoit Trottier, Marianne Harris, Sharon Walmsley, Brian Conway, Alexander Wong, Jean-Pierre Routy, Colin Kovacs, Paul A MacPherson, Kenneth Marc Monteith, Samer Mansour, George Thanassoulis, Michal Abrahamowicz, Zhitong Zhu, Christos Tsoukas, Petronela Ancuta, Nicole Bernard, Cécile L Tremblay
BACKGROUND: With potent antiretroviral drugs, HIV infection is becoming a chronic disease. Emergence of comorbidities, particularly cardiovascular disease (CVD) has become a leading concern for patients living with the infection. We hypothesized that the chronic and persistent inflammation and immune activation associated with HIV disease leads to accelerated aging, characterized by CVD. This will translate into higher incidence rates of CVD in HIV infected participants, when compared to HIV negative participants, after adjustment for traditional CVD risk factors...
September 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28891156/overcoming-preexisting-alloantibody-in-renal-transplantation-improving-outcomes-while-reducing-needs-and-costs
#20
EDITORIAL
A Bentall, Solomon J Cohney
No abstract text is available yet for this article.
September 11, 2017: American Journal of Transplantation
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