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https://www.readbyqxmd.com/read/29035589/the-activity-of-nintedanib-in-an-animal-model-of-allogenic-left-lung-transplantation-resembling-aspects-of-allograft-rejection
#1
Marietta von Suesskind-Schwendi, Elke Boxhammer, Stephan W Hirt, Stephan Schreml, Christof Schmid, Lutz Wollin, Karla Lehle
AIM OF THE STUDY: The prevention and treatment of chronic lung allograft dysfunction (CLAD) after lung transplantation (LTx) remain unsatisfactory. Growth factors may play an important role in the development of CLAD. This study evaluated the effects of nintedanib, a receptor tyrosine kinase inhibitor, in the treatment of CLAD after experimental LTx. MATERIALS AND METHODS: A rat model of left lung allo-transplantation (Fisher 344 to Wistar Kyoto) was used to evaluate the effect of nintedanib (50 mg/kg per day) on the development of CLAD...
October 16, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29030886/genetics-of-acute-rejection-after-kidney-transplantation
#2
REVIEW
Casey R Dorr, William S Oetting, Pamala A Jacobson, Ajay K Israni
Treatment of acute rejection (AR) following kidney transplantation has improved in recent years, but there are still limitations to successful outcomes. This review article covers literature in regards to recipient and donor genetics of AR kidney and secondarily of liver allografts. Many candidate gene and some genome wide association studies (GWAS) have been conducted for AR in kidney transplantation. Genetic associations with AR in kidney and liver are mostly weak and in most cases the associations have not been reproducible...
October 14, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/29029524/comparative-efficacy-and-safety-of-antibody-induction-therapy-for-the-treatment-of-kidney-a-network-meta-analysis
#3
Mingjie Shao, Tingting Tian, Xinyan Zhu, Yingzi Ming, Yasuko Iwakiri, Shaojun Ye, Qifa Ye
To evaluate the efficacy and safety of antibody induction therapies in kidney transplantation. Systematic literature searches were undertaken using MEDLINE, Embase, and Cochrane Library database from 1980 to 2016. Randomized controlled trials (RCTs) comparing three antibody induction therapies (alemtuzumab, interleukin-2 receptor antibodies and antithymocyte globulin) between each other were identified. Bayesian network meta-analysis was used to combine both the direct and indirect evidence on treatment efficacy and its safety...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29021921/post-transplant-lymphoproliferative-disorder-ptld-single-institutional-experience-of-141-patients
#4
Rohit Bishnoi, Ravneet Bajwa, Aaron J Franke, William Paul Skelton, Yu Wang, Niraj M Patel, William Birdsall Slayton, Fei Zou, Nam H Dang
BACKGROUND: Post-transplant lymphoproliferative disorder is a well-recognized but rare complication of hematopoietic stem cell and solid organ transplant. Due to rarity of this disease, retrospective studies from major transplant centers has been the main source to provide treatment guidelines, which are still in evolution. The sample size of this study is among one of the largest study on PTLD till date reported throughout the world. METHODS: This study was performed at University of Florida which is one of the largest transplant center in South East United States...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/28988984/prevention-of-chronic-renal-allograft-rejection-by-as2553627-a-novel-jak-inhibitor-in-a-rat-transplantation-model
#5
Koji Nakamura, Yuka Kawato, Yoko Kaneko, Kaori Hanaoka, Kaori Kubo, Tomonori Nakanishi, Masashi Maeda, Hidehiko Fukahori, Misato Ito, Takahisa Noto, Masamichi Inami, Jun Hirose, Tatsuaki Morokata
BACKGROUND: Janus kinase (JAK) inhibitors are thought to be promising candidates to aid renal transplantation. However, the effectiveness of JAK inhibitors against features of chronic rejection, including interstitial fibrosis/tubular atrophy (IF/TA) and glomerulosclerosis, has not been elucidated. Here, we investigated the effect of AS2553627, a novel JAK inhibitor, on the development of chronic rejection in rat renal transplantation. METHODS: Lewis (LEW) to Brown Norway (BN) rat renal transplantation was performed...
October 5, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28988422/comparison-of-two-cytoreductive-regimens-for-%C3%AE-%C3%AE-t-cell-depleted-haploidentical-hsct-in-pediatric-malignancies-improved-engraftment-and-outcome-with-tbi-based-regimen
#6
Elad Jacoby, Nira Varda-Bloom, Gal Goldstein, Daphna Hutt, Chaim Churi, Helly Vernitsky, Amos Toren, Bella Bielorai
BACKGROUND: Graft manipulation using selective depletion of αβ-T cells provides a source of haploidentical hematopoietic stem cell transplantation (haplo-HSCT) enriched in effector cells. We report our experience implementing this haplo-HSCT for high-risk malignancies in pediatric patients focusing on the conditioning regimen. PROCEDURE: We performed a retrospective study of patients who underwent T-cell receptor αβ-depleted haplo-HSCT for high-risk pediatric malignancies...
October 8, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28970838/successful-treatment-of-t-cell-mediated-acute-rejection-with-delayed-ctla4-ig-in-mice
#7
James S Young, Stella H-W Khiew, Jinghui Yang, Augustin Vannier, Dengping Yin, Roger Sciammas, Maria-Luisa Alegre, Anita S Chong
Clinical observations that kidney transplant recipients receiving belatacept who experienced T cell-mediated acute rejection can be successfully treated and subsequently maintained on belatacept-based immunosuppression suggest that belatacept is able to control memory T cells. We recently reported that treatment with CTLA4-Ig from day 6 posttransplantation successfully rescues allografts from acute rejection in a BALB/c to C57BL/6 heart transplant model, in part, by abolishing B cell germinal centers and reducing alloantibody titers...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28969763/peri-and-postsurgical-evaluations-of-renal-transplant
#8
REVIEW
Belkis Erbas
Renal transplantation is the best treatment of choice for patient with chronic renal insufficiency because it provides better quality of life and longer survival. Survival rates for grafts and patients have improved over the recent decades because of significant evolution of surgical techniques and immunosuppressive treatment. However, renal transplantation is still associated with several complications, which may result in poor outcome. Cause of allograft dysfunction, which occurs in the early or late post-transplantation period, should be recognized immediately, so that it can be managed correctly...
November 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28962171/role-of-natural-killer-cells-in-liver-transplantation-treatment-of-liver-cancer
#9
Wenbin Ji, Jin Chen, Yuche Mi, Guiliang Wang, Xinjiang Xu, Weizheng Wang
Liver cancer caused by diet or life style is a significant public health problem. Liver transplantation (LT) is a commonly used method of treatment for the liver cancer. The present study aimed to determine whether assessing the net state of natural killer (NK) cell function following LT distinguishes patients at risk for transplantation rejection. A total of 53 patients were involved; all underwent LT for hepatocellular carcinoma with (n=13) or without (n=40) transplantation rejection. The density of interferon-γ (IFN-γ) in blood serum was examined and patients were divided into two groups: Higher (H) and lower (L), on the basis of IFN-γ density...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28950337/bone-marrow-stem-cells-modified-with-human-interleukin-10-attenuate-acute-rejection-in-rat-lung-allotransplantation
#10
Jaroslaw Pieróg, Luca Tamo, Richard Fakin, Gregor Kocher, Mathias Gugger, Tomasz Grodzki, Thomas Geiser, Amiq Gazdhar, Ralph A Schmid
OBJECTIVES: The aim of this study was to investigate new therapeutic options to attenuate acute rejection in a rat lung allograft model. Cell-based gene therapies have recently been reported as a novel curative option in acute and chronic diseases for which conventional treatments are not available. We studied the effect of human interleukin 10 (hIL-10) on expressing bone marrow-derived mesenchymal stem cells (BMSCs) in combination with cyclosporine A (CsA) on acute rejection of lung allografts in the rat...
July 25, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28945480/myriad-applications-of-circulating-cell-free-dna-in-precision-organ-transplant-monitoring
#11
Philip Burnham, Kiran Khush, Iwijn De Vlaminck
Solid organ transplantation remains the preferred treatment for many end-stage organ diseases, but complications due to acute rejection and infection occur frequently and undermine its long-term benefits. Monitoring of the health of the allograft is therefore a critically important component of post-transplant therapy. Here, we review several emerging applications of circulating cell-free DNA (cfDNA) in the post-transplant monitoring of rejection, infection, and immunosuppression. We further discuss the cellular origins and salient biophysical properties of cfDNA...
September 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28942970/the-efficacy-of-inhaled-nanoparticle-tacrolimus-in-preventing-rejection-in-an-orthotopic-rat-lung-transplant-model
#12
Nitin Andrew Das, Jay I Peters, Jeremy D Simmons, Yibo Wang, Kevin P O'Donnell, Daniel T DeArmond, Jacqueline J Coalson, Edward G Brooks, Scott B Johnson
OBJECTIVE: The immunosuppressive efficacy of inhaled nanoparticle tacrolimus was compared with systemic tacrolimus in a rodent allogeneic lung transplant model. METHODS: Sixteen rats underwent allogeneic left orthotopic lung transplantation and were divided into 3 treatment groups: (1) inhaled nanoparticle tacrolimus: 6.4 mg tacrolimus/6.4 mg lactose twice per day; (2) intramuscular tacrolimus: 1 mg/kg tacrolimus once per day; and (3) inhaled lactose: 6.4 mg of lactose twice per day...
September 1, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28941751/immune-reconstitution-with-two-different-rabbit-polyclonal-anti-thymocytes-globulins
#13
Jamal Bamoulid, Thomas Crepin, Emilie Gaiffe, Caroline Laheurte, Bruno Moulin, Luc Frimat, Philippe Rieu, Christiane Mousson, Antoine Durrbach, Anne-Elisabeth Heng, Jean-Michel Rebibou, Philippe Saas, Cécile Courivaud, Didier Ducloux
Broad T cell depletion by polyclonal anti-thymocyte globulins (ATG) has been used for many years as a part of immunosuppressive treatment in transplantation. Currently, two different ATG are used in clinical practice, Thymoglobulin and Grafalon. Due to differences in the immunization source, these products contain different specificities and quantity of antibodies. These differences may have clinical consequences. We conducted a nested study in a large prospective multicentric cohort of kidney transplant to determine whether Grafalon-treated and Thymoglobulin-treated patients experience different lymphocyte reconstitution and clinical outcomes...
September 20, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28933181/-heart-transplantation-and-infection
#14
Eva Ozábalová, Jan Krejčí, Petr Hude, Julius Godava, Tomáš Honek, Lenka Špinarová, Petr Pavlík, Helena Bedáňová, Petr Němec
Heart transplantation (HTx) is a method of treatment for patients with end-stage heart failure with severe symptoms despite complex therapy. Post-transplant difficulties include acute rejection and infectious complications, which are the most common reason of morbidity and mortality in the first year after heart transplant. It requires the patient to remain on immunosuppressive medication to avoid the possibility of graft rejection. Therefore the range of infection is much larger. The diagnosis and treatment of viral, bacterial and fungal infections is often difficult...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28933173/-cytomegalovirus-and-polyomavirus-infection-after-renal-transplantation
#15
Jana Machová, Tomáš Reischig
Viral infections are among the most common infectious complications affecting transplant recipients. Due to immunosuppressive therapy predominantly affecting cellular immunity and thus successfully reducing the incidence of acute rejection, there is a higher incidence of viral infections. Herpesviruses and polyomaviruses are ubiquitous pathogens which have the ability to persist in a state of latent infection. In addition to post-transplant reactivation, donor-induced primoinfection can also occur, leading to increased morbidity and contributing to decreased survival of patients...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28930779/inhibition-of-lymphatic-drainage-with-a-self-designed-surgical-approach-prolongs-the-vascularized-skin-allograft-survival-in-rats
#16
Jiaomiao Pei, Yang Li, Chen Chen, Xi Zhang, Shiping Wang, Yajuan Song, Bei Liu, Yingjun Su, Shuzhong Guo
Vascularized composite allotransplantation (VCA) is an emerging treatment for significant tissue defects. However, VCAs usually consist of multiple highly antigenic skin tissues. Previous studies have shown that the lymphatic system in skin plays important roles in the initiation of immune responses during acute rejection, by transporting T cells and antigen-presenting dendritic cells to regional lymph nodes. Therefore, we designed a new surgical treatment to inhibit lymphatic drainage of skin allografts and investigated whether this approach could promote the survival of allografts and suppress immunological events after transplantation...
September 19, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28926770/1-25-oh-2d3-induces-regulatory-t-cell-differentiation-by-influencing-the-vdr-plc-%C3%AE-1-tgf-%C3%AE-1-pathway
#17
Qiang Zhou, Shengying Qin, Jinyan Zhang, Lin Zhon, Zhihai Pen, Tonghai Xing
Vitamin D has been recommended as an immune modulator in recent years, in addition to regulating calcium-phosphorous-bone metabolism. Clinical studies on organ transplantation found that vitamin D sufficiency patients were less likely to develop acute cellular rejection within one year after transplantation compared to those with vitamin D deficiency. Thus, a high percentage of regulatory T cells might play a key role in preventing acute cellular rejection (ACR). In this report, we studied the specific effects of 1,25(OH)2D3 on human T cell diff ;erentiation, and determined the potential molecule mechanism behind...
September 17, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28924464/the-relationship-between-mortality-of-lung-transplant-recipients-and-serum-cyclosporine-levels-joint-modeling-of-time-to-event-data-and-longitudinal-data
#18
F S Hosseini-Baharanchi, E Hajizadeh, A R Baghestani, K Najafzadeh
BACKGROUND: Lung transplantation (LTx) is a well-accepted treatment that can prolong survival of patients with advanced lung disease. OBJECTIVE: To evaluate the association between serum cyclosporine level (SCL) pattern and mortality of LTx recipients. METHODS: This retrospective cohort study included 1019 observations on 38 patients who underwent LTx in Masih Daneshvari Hospital from 2000 to 2013. The analysis applied a joint model with shared random effects...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28923621/extended-spectrum-beta-lactamase-producing-enterobacteriaceae-related-urinary-tract-infection-in-kidney-transplant-recipients-risk-factors-treatment-and-long-term-outcome
#19
S Brakemeier, S I Taxeidi, B Zukunft, D Schmidt, J Gaedeke, M Dürr, S Hansen, K Budde
BACKGROUND: Prevalence of extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-E) has risen in kidney transplant (KT) patients, with no long-term data so far on graft function or survival. METHODS: KT patients with ESBL-E-positive urine culture were retrospectively analyzed regarding initial adequate antimicrobial therapy, recurrent infection, transplant function, and survival compared with an ESBL-E-negative KT control cohort. RESULTS: ESBL-E-positive KT patients (n = 93) were older (55...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28920002/ep4-antagonism-by-e7046-diminishes-myeloid-immunosuppression-and-synergizes-with-treg-reducing-il-2-diphtheria-toxin-fusion-protein-in-restoring-anti-tumor-immunity
#20
Diana I Albu, Zichun Wang, Kuan-Chun Huang, Jiayi Wu, Natalie Twine, Sarah Leacu, Christy Ingersoll, Lana Parent, Winnie Lee, Diana Liu, Renee Wright-Michaud, Namita Kumar, Galina Kuznetsov, Qian Chen, Wanjun Zheng, Kenichi Nomoto, Mary Woodall-Jappe, Xingfeng Bao
Reprogramming of immunosuppressive tumor microenvironment (TME) by targeting alternatively activated tumor associated macrophages (M2TAM), myeloid-derived suppressor cells (MDSC), and regulatory T cells (Tregs), represents a promising strategy for developing novel cancer immunotherapy. Prostaglandin E2 (PGE2), an arachidonic acid pathway metabolite and mediator of chronic inflammation, has emerged as a powerful immunosuppressor in the TME through engagement with one or more of its 4 receptors (EP1-EP4). We have developed E7046, an orally bioavailable EP4-specific antagonist and show here that E7046 has specific and potent inhibitory activity on PGE2-mediated pro-tumor myeloid cell differentiation and activation...
2017: Oncoimmunology
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