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Transplantation induction therapies

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https://www.readbyqxmd.com/read/29151264/renal-protection-strategies-after-heart-transplantation
#1
REVIEW
Daniel Reichart, Hermann Reichenspurner, Markus Johannes Barten
Renal dysfunction caused by calcineurin inhibitor (CNI) nephrotoxicity occurs often and contributes significantly to late mortality after heart transplantation (HTx). Over the last decades, this has prompted many clinical studies in an effort to develop kidney-protecting immunosuppressive strategies including delayed CNI start, minimization, withdrawal or even de-novo CNI avoidance. In the past, these strategies often failed due to the lack of efficacy. Since 2009, novel CNI-reducing strategies are under investigation...
November 19, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29149976/clinical-challenges-of-tacrolimus-for-maintenance-immunosuppression-post-lung-transplantation
#2
S Ivulich, M Dooley, C Kirkpatrick, G Snell
Lung transplantation (LTx) is a successful treatment option for end-stage lung disease, and immunosuppressant regimens, utilized to prevent rejection of the transplanted graft, are paramount to maintaining long-term graft survival. Immunosuppression can be classified as induction, maintenance, and antirejection therapy. This article focuses on maintenance immunosuppression that includes a combination of a calcineurin inhibitor (CNI), cell cycle inhibitor, and corticosteroid. CNIs remain the cornerstone of immunosuppression following LTx, and tacrolimus is now the preferred CNI, based on a better adverse effect profile and some limited evidence for enhanced efficacy...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149958/efficacy-of-prolonged-and-immediate-release-tacrolimus-in-kidney-transplantation-a-pooled-analysis-of-two-large-randomized-controlled-trials
#3
B K Krämer, L Albano, B Banas, B Charpentier, L Bäckman, H Tedesco-Silva, F Lehner, G A Mondragón-Ramírez, M Glyda, E Cassuto-Viguier, O Viklický, G Mourad, P Rigotti, S Schleibner, N Kamar
BACKGROUND: Two large, prospective studies (12-03; OSAKA) compared the efficacy and tolerability of prolonged-release versus immediate-release tacrolimus in kidney transplant patients also receiving mycophenolate mofetil and low-dose corticosteroids (without induction therapy). METHODS: Data were combined into one database to compare results over 24 weeks using 3 alternative endpoints: biopsy-confirmed acute rejection (BCAR); the Food and Drug Administration composite endpoint (graft loss, BCAR, and loss to follow-up), and the European Medicines Agency composite endpoint (graft loss, BCAR, and graft dysfunction)...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29146241/cardiac-progenitor-cells-activated-by-mitochondrial-delivery-of-resveratrol-enhance-the-survival-of-a-doxorubicin-induced-cardiomyopathy-mouse-model-via-the-mitochondrial-activation-of-a-damaged-myocardium
#4
Jiro Abe, Yuma Yamada, Takeda Atsuhito, Hideyoshi Harashima
It has been reported that transplanting native cells would lack efficiency without producing artificial cell-tissue, due to the exaggerated oxidative stress in doxorubicin-induced cardiomyopathy. We attempted to activate cardiac progenitor cells (CPCs) by delivering resveratrol to mitochondria using a mitochondrial drug delivery system (MITO-Porter system). We first evaluated the viability of H9c2 cells (a cardio myoblast cell line) after doxorubicin treatment, where H9c2 cells were co-cultured with or without the mitochondria activated CPCs (referred to herein as MITO cell)...
November 13, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29146059/oral-lymphomatoid-papulosis-type-c-a-diagnostic-pitfall-often-confused-with-t-cell-lymphoma
#5
Ziv Schwartz, Morton Coleman, Jennifer P Toyohara, Paul D Freedman, Cynthia M Magro
Eosinophilic ulcer of the oral mucosa (EUOM) is a rare, benign, self-resolving lymphoproliferative disorder, which typically presents with asymptomatic to mildly tender ulcers. Histological findings of EUOM are characterized by a polymorphic infiltrate with many eosinophils often extending into the underlying muscle. Although this entity is well documented within the dental literature, it is not well known to physicians. The pathogenesis of the condition is unclear, although reports dating back to 1997 suggest that at least a subset of EUOM represents CD30 positive lymphoproliferative disorder (CD30+ LPD)...
December 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29145879/allogeneic-mesenchymal-stem-cell-as-induction-therapy-to-prevent-both-delayed-graft-function-and-acute-rejection-in-deceased-donor-renal-transplantation-study-protocol-for-a-randomized-controlled-trial
#6
Qipeng Sun, Liangqing Hong, Zhengyu Huang, Ning Na, Xuefeng Hua, Yanwen Peng, Ming Zhao, Ronghua Cao, Qiquan Sun
BACKGROUND: Using kidneys from deceased donors is an available strategy to meet the growing need of grafts. However, higher incidences of delayed graft function (DGF) and acute rejection exert adverse effects on graft outcomes. Since ischemia-reperfusion injury (IRI) and ongoing process of immune response to grafts are the major causes of DGF and acute rejection, the optimal induction intervention should possess capacities of both repairing renal structure injury and suppressing immune response simultaneously...
November 16, 2017: Trials
https://www.readbyqxmd.com/read/29143315/fetal-haemoglobin-induction-in-sickle-cell-disease
#7
REVIEW
Alireza Paikari, Vivien A Sheehan
Fetal haemoglobin (HbF, α2γ2) induction has long been an area of investigation, as it is known to ameliorate the clinical complications of sickle cell disease (SCD). Progress in identifying novel HbF-inducing strategies has been stymied by limited understanding of gamma (γ)-globin regulation. Genome-wide association studies (GWAS) have identified variants in BCL11A and HBS1L-MYB that are associated with HbF levels. Functional studies have established the roles of BCL11A, MYB, and KLF1 in γ-globin regulation, but this information has not yielded new pharmacological agents...
November 16, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/29136322/heme-oxygenase-1-regulates-sirtuin-1-autophagy-pathway-in-liver-transplantation-from-mouse-to-human
#8
Kojiro Nakamura, Shoichi Kageyama, Shi Yue, Jing Huang, Takehiro Fujii, Bibo Ke, Rebecca A Sosa, Elaine F Reed, Nakul Datta, Ali Zarrinpar, Ronald W Busuttil, Jerzy W Kupiec-Weglinski
Liver ischemia-reperfusion injury (IRI) represents a major risk factor of early graft dysfunction and a key obstacle to expanding the donor pool in orthotopic liver transplantation (OLT). Although graft autophagy is essential for resistance against hepatic IRI, its significance in clinical OLT remains unknown. Despite recent data identifying heme oxygenase-1 (HO-1) as a putative autophagy inducer, its role in OLT and interactions with Sirtuin-1 (SIRT1), a key autophagy regulator, have not been studied. We aimed to examine HO-1 mediated autophagy induction in human OLT and in a murine OLT model with extended (20h) cold storage, as well as to analyze the requirement for SIRT1 in autophagy regulation by HO-1...
November 14, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29131413/the-effect-of-epitope-based-ligation-of-icam-1-on-survival-and-retransplantation-of-pig-islets-in-nonhuman-primates
#9
Jae-Il Lee, Jiyeon Kim, Yun-Jung Choi, Hi-Jung Park, Hye-Jin Park, Hae Joo Wi, Sunok Yoon, Jun-Seop Shin, Jin Kyun Park, Kyeong Cheon Jung, Eun Bong Lee, Hee Jung Kang, Eung Soo Hwang, Sang-Joon Kim, Chung-Gyu Park, Seong Hoe Park
BACKGROUND: Pig islet xenotransplantation is a promising alternative to allogeneic transplantation. However, the wide immunologic barrier between pigs and primates limits the long-term survival of the graft. MD-3, a novel monoclonal antibody (mAb) that recognizes a particular epitope of human ICAM-1, can render T cells tolerant to a xenograft by arresting dendritic cell maturation. We report the long-term survival of adult wild-type pig islets and successful retransplantation in nonhuman primates using a protocol comprising induction with MD-3 mAb and maintenance with anti-CD154 mAb and sirolimus...
November 12, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/29121538/therapeutic-options-for-leukemic-transformation-in-patients-with-myeloproliferative-neoplasms
#10
REVIEW
Maliha Khan, Rabbia Siddiqi, Naseema Gangat
Approximately 5-10% of patients with Philadelphia chromosome negative myeloproliferative neoplasms (MPN) comprising of essential thrombocythemia, polycythemia vera and primary myelofibrosis) experience transformation to acute myeloid leukemia (AML, ≥20% blasts). Treatment options for post-MPN AML patients are limited, as conventional approaches like standard chemotherapy, fail to offer long-term benefit. Median survival for secondary AML is ∼2.4 months. Post-MPN AML therefore represents an area of urgent clinical need...
October 27, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29115494/elemene-inhibits-osteosarcoma-growth-by-suppressing-the-renin%C3%A2-angiotensin-system-signaling-pathway
#11
Lixiang Ding, Genai Zhang, Yu Hou, Jiao Chen, Yukun Yin
Osteosarcoma remains the most prevalent primary malignant bone tumor in children and young adults globally. Therefore, novel and highly effective antitumor agents are urgently required. Elemene is a natural plant compound extracted from the medicinal Chinese herb, Rhizomazedoariae, which has been employed as an antitumor agent for the treatment of a number of tumors, including osteosarcoma. However, the mechanisms underlying its antitumor effect are currently unclear. The human osteosarcoma cell lines, MG‑63 and U2OS, were employed in the present study...
November 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29105189/cyclophosphamide-induced-tolerance-in-kidney-transplantation-avoids-long-term-immunosuppressive-therapy
#12
REVIEW
Ario Takeuchi, Koji Kato, Koichi Akashi, Masatoshi Eto
There has recently been remarkable progress in immunosuppressive agents, such as tacrolimus and cyclosporine. Therefore, the rate of organ establishment has improved in transplantation. However, immunosuppressive agents generally suppress the function of T cells. Thus, opportunistic infections, such as cytomegalovirus infection, are still a major problem in kidney transplantation. Induction of specific tolerance to avoid immunosuppressive drug therapy after kidney transplantation is considered as the ultimate goal of transplantation...
November 3, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29100675/skull-base-plasmacytoma-a-unique-case-of-poems-syndrome-with-a-plasmacytoma-causing-craniocervical-instability
#13
Hannah Gilder, Meghan E Murphy, Mohammed Ali Alvi, Panagiotis Kerezoudis, Daniel Shepherd, Patrick R Maloney, Michael J Yaszemski, Jonathan M Morris, Angela Dispenzieri, Jane M Matsumoto, Mohamad Bydon
INTRODUCTION: Plasmacytomas, considered to be the solitary counterparts of multiple myeloma, are neoplastic monoclonal plasma cell proliferations within soft tissue or bone. Plasmacytomas often present as a collection of findings known as POEMS-syndrome (Polyneuropathy, Organomegaly, Endocrinopathy, M-Protein spike, and Skin changes). CASE DESCRIPTION: We present a report of a 47 yo male diagnosed with POEMS-syndrome secondary to a skull base plasmacytoma. The mass resulted in marked instability of the cranio-cervical junction due to bony erosion...
October 31, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29096622/tissue-engineered-smooth-muscle-cell-and-endothelial-progenitor-cell-bi-level-cell-sheets-prevent-progression-of-cardiac-dysfunction-microvascular-dysfunction-and-interstitial-fibrosis-in-a-rodent-model-of-type-1-diabetes-induced-cardiomyopathy
#14
Masashi Kawamura, Michael J Paulsen, Andrew B Goldstone, Yasuhiro Shudo, Hanjay Wang, Amanda N Steele, Lyndsay M Stapleton, Bryan B Edwards, Anahita Eskandari, Vi N Truong, Kevin J Jaatinen, Arnar B Ingason, Shigeru Miyagawa, Yoshiki Sawa, Y Joseph Woo
BACKGROUND: Diabetes mellitus is a risk factor for coronary artery disease and diabetic cardiomyopathy, and adversely impacts outcomes following coronary artery bypass grafting. Current treatments focus on macro-revascularization and neglect the microvascular disease typical of diabetes mellitus-induced cardiomyopathy (DMCM). We hypothesized that engineered smooth muscle cell (SMC)-endothelial progenitor cell (EPC) bi-level cell sheets could improve ventricular dysfunction in DMCM. METHODS: Primary mesenchymal stem cells (MSCs) and EPCs were isolated from the bone marrow of Wistar rats, and MSCs were differentiated into SMCs by culturing on a fibronectin-coated dish...
November 2, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29091870/immunotherapy-for-acute-myeloid-leukemia-aml-a-potent-alternative-therapy
#15
REVIEW
Desmond O Acheampong, Christian K Adokoh, Du-Bois Asante, Ernest A Asiamah, Prince A Barnie, Dan O M Bonsu, Foster Kyei
The standard therapy of AML for many years has been chemotherapy with or without stem transplantation. However, there has not been any tangible improvement in this treatment beyond induction through chemotherapy and consolidation with allogeneic stem cell transplantation or chemotherapy. Residual AML cells which later cause relapse mostly persist even after rigorous standard therapy. It is imperative therefore to find an alternative therapy that can take care of the residual AML cells. With a better understanding of how the immune system works to destroy tumor cells and inhibit their growth, another therapeutic option immunotherapy has emerged to address the difficulties associated with the standard therapy...
October 26, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29091205/risk-factors-for-subtherapeutic-levels-of-posaconazole-tablet
#16
Laura A Tang, Bernard L Marini, Lydia Benitez, Jerod L Nagel, Marisa Miceli, Caroline Berglund, Anthony J Perissinotti
Background: Posaconazole is the prophylactic antifungal of choice for patients with haematological malignancies at high risk of invasive fungal infections (IFIs). Studies have demonstrated that subtherapeutic concentrations of posaconazole are associated with breakthrough fungal infections and specific risk factors for subtherapeutic troughs associated with the suspension formulation have been identified. However, these risk factors have not been evaluated in a large patient population with the recently approved tablet formulation...
October 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29089774/adult-acute-megakaryoblastic-leukemia-rare-association-with-cytopenias-of-undetermined-significance-and-p210-and-p190-bcr-abl-transcripts
#17
Delia Dima, Liana Oprita, Ana-Maria Rosu, Adrian Trifa, Cristina Selicean, Vlad Moisoiu, Ioana Frinc, Mihnea Zdrenghea, Ciprian Tomuleasa
Acute megakaryocytic leukemia (M7-AML) is a rare form of acute myeloid leukemia (AML), which is associated with poor prognosis. The case presented in the current report is a statement for the difficult diagnosis and clinical management of M7-AML in the context of a previous hematologic disorder of undetermined significance and associated genetic abnormalities. Probably, following the complete hematologic remission and further with induction chemotherapy plus tyrosine kinase inhibitor therapy, the clinical management of this case will be followed by a allogeneic bone marrow transplantation, the only proven therapy to improve overall survival...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29083050/alternating-r-chop-and-r-cytarabine-is-a-safe-and-effective-regimen-for-transplant-ineligible-patients-with-a-newly-diagnosed-mantle-cell-lymphoma
#18
Pavel Klener, Eva Fronkova, David Belada, Kristina Forsterova, Robert Pytlik, Marketa Kalinova, Martin Simkovic, David Salek, Heidi Mocikova, Vit Prochazka, Petra Blahovcova, Andrea Janikova, Jana Markova, Ales Obr, Adela Berkova, Jozef Kubinyi, Martina Vaskova, Ester Mejstrikova, Vit Campr, Radek Jaksa, Roman Kodet, Kyra Michalova, Jan Trka, Marek Trneny
Implementation of cytarabine into induction therapy became standard of care for younger patients with mantle cell lymphoma (MCL). On the basis of its beneficial impact, many centers incorporated cytarabine at lower doses also into first-line treatments of elderly patients. We conducted a multicenter observational study that prospectively analyzed safety and efficacy of alternating 3 + 3 cycles of R-CHOP and R-cytarabine for newly diagnosed transplant-ineligible MCL patients. A total of 73 patients were enrolled with median age 70 years...
October 30, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/29079457/autologous-allogeneic-hematopoietic-cell-transplantation-hct-versus-tandem-autologous-transplantation-for-multiple-myeloma-comparison-of-long-term-post-relapse-survival
#19
Myo Htut, Anita D'Souza, Amrita Krishnan, Benedetto Bruno, Mei-Jie Zhang, Mingwei Fei, Miguel Angel Diaz, Edward Copelan, Siddhartha Ganguly, Mehdi Hamadani, Mohamed Kharfan-Dabaja, Hillard Lazarus, Cindy Lee, Kenneth Meehan, Taiga Nishihori, Ayman Saad, Sachiko Seo, Muthalagu Ramanathan, Saad Z Usmani, Christina Gasparetto, Tomer M Mark, Yago Nieto, Parameswaran Hari
We compared post-relapse overall survival (OS) after autologous-allogenenic (auto/allo) versus tandem autologous (auto/auto) hematopoietic cell transplantation (HCT) in multiple myeloma (MM). Post-relapse survival of patients receiving an auto/auto or auto/allo HCT for MM and prospectively reported to the Center for International Blood and Marrow Transplant Research (CIBMTR) between 2000 and 2010 were analyzed. 404 patients (72.4%) relapsed in the auto/auto group and 178 patients (67.4%) relapsed in the auto/allo group after a median follow up of 8...
October 24, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29077398/control-of-adipogenic-differentiation-in-mesenchymal-stem-cells-via-endogenous-gene-activation-using-crispr-cas9
#20
Yuichi Furuhata, Yuta Nihongaki, Moritoshi Sato, Keitaro Yoshimoto
Mesenchymal stem cells (MSCs) are of interest in regenerative medicine owing to their multilineage differentiation and self-renewal properties. Understanding the in vivo differentiation process is necessary for clinical applications including cell therapy and transplantation. This remains challenging owing to the lack of induction methods that imitate the natural programming process. Endogenous gene regulation of tissue-specific transcription factors is therefore desirable. In the present study, we demonstrated endogenous activation of adipogenic genes through the dCas9-based transcription system and achieved efficient induction of different types of adipocyte-like cells from MSCs...
November 7, 2017: ACS Synthetic Biology
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