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Transplant stem cell

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https://www.readbyqxmd.com/read/28324640/cytogenetics-and-comorbidity-predict-outcomes-in-older-myelodysplastic-syndrome-patients-after-allogenic-stem-cell-transplantation-using-reduced-intensity-conditioning
#1
Orhan Kemal Yucel, Rima M Saliba, Gabriella Rondon, Sairah Ahmed, Amin Alousi, Qaiser Bashir, Stefan O Ciurea, Uday Popat, Isa Khouri, David Marin, Katy Rezvani, Partow Kebriaei, Elizabeth J Shpall, Richard E Champlin, Betül Oran
BACKGROUND: Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the only treatment with a curative potential for myelodysplastic syndrome (MDS) patients. Allo-HSCT has substantial risks, particularly in the elderly, and its role for older MDS patients has yet to be defined. METHODS: We analyzed 88 MDS patients aged ≥ 60 years with allo-HSCT after reduced intensity conditioning regimens over the last decade. The study cohort had high risk features; 47 of 88 (53...
March 21, 2017: Cancer
https://www.readbyqxmd.com/read/28320172/neuropathological-findings-from-an-autopsied-case-showing-posterior-reversible-encephalopathy-syndrome-like-neuroradiological-findings-associated-with-premedication-including-tacrolimus-for-autologous-peripheral-blood-stem-cell-transplantation
#2
Yuichi Hayashi, Akio Kimura, Hiroshi Nakamura, Maya Mimuro, Yasushi Iwasaki, Akira Hara, Mari Yoshida, Takashi Inuzuka
Posterior reversible encephalopathy syndrome (PRES) is diagnosed based on neuroradiological findings. Typically, PRES is reversible and presents with a good outcome; however, fatal outcomes have been reported. We report an autopsied case showing PRES-like neuroradiological findings associated with premedication including tacrolimus for autologous peripheral blood stem cell transplantation in a 28-year-old woman with a 2-year history of acute myeloid sarcoma/acute myeloid leukemia. Neurological examination revealed disturbed consciousness, muscle weakness in all extremities, and bilaterally diminished tendon reflexes...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320105/anti-fibrotic-potential-of-human-umbilical-cord-mononuclear-cells-and-mouse-bone-marrow-cells-in-ccl4-induced-liver-fibrosis-in-mice
#3
Nageh Ahmed Elmahdy, Samia Salem Sokar, Mohamed Labib Salem, Naglaa Ibrahim Sarhan, Sherin Hamed Abou-Elela
Liver fibrosis is the consequence of hepatocyte injury that leads to the activation of hepatic stellate cells (HSC). The treatment of choice is Liver transplantation; however, it has many problems such as surgery-related complications, immunological rejection and high costs associated with the procedure. Stem cell-based therapy would be a potential alternative, so the aim of this study is to investigate the therapeutic potential of human umbilical cord mononuclear cells (MNC) and mouse bone marrow cells (BMC) against carbon tetrachloride (CCl4) induced liver fibrosis in mice and compare it with that of silymarin...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319561/pediatric-enteric-neuropathies-diagnosis-and-current-management
#4
Maggie L Westfal, Allan M Goldstein
PURPOSE OF REVIEW: Neurointestinal diseases are increasingly recognized as causes of significant gastrointestinal morbidity in children. This review highlights the most common pediatric enteric neuropathies and their diagnosis and management, emphasizing insights and discoveries from the most recent literature available. RECENT FINDINGS: The embryologic and histopathologic causes of enteric neuropathies are varied. They range from congenital aganglionosis in Hirschsprung disease, to autoimmune-mediated loss of neuronal subtypes in esophageal achalasia and Chagas disease, to degenerative neuropathies in some cases of chronic intestinal pseudo-obstruction and gastroparesis...
March 17, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28319080/adverse-impact-of-high-donor-cd3-cell-dose-on-outcome-following-tandem-auto-nma-allogeneic-transplantation-for-high-risk-myeloma
#5
A P Nair, P Walker, A Kalff, K Bergin, J Hocking, S Avery, D J Curtis, S Patil, T Das, D Klarica, S Morgan, J Muirhead, M Gorniak, J Reynolds, A Spencer
High-risk (HR) multiple myeloma (MM) has poor outcomes with conventional therapy. Tandem autologous-non-myeloablative (NMA) allogeneic stem cell transplantation (autologous stem cell transplantation (ASCT)-NMA allogeneic SCT) is potentially curative secondary to graft-versus-myeloma effect. We retrospectively analysed ASCT-NMA allogeneic SCT outcomes of 59 HR and relapsed MM patients. At a median follow-up of 35.8 months, the outcomes for HR-MM upfront tandem ASCT-NMA allogeneic SCT and standard-risk (SR) MM upfront ASCT alone were comparable (median PFS 1166 days versus 1465 days, P=0...
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28319079/permanent-diffuse-alopecia-after-haematopoietic-stem-cell-transplantation-in-childhood
#6
D Bresters, D C M Wanders, M Louwerens, L M Ball, M Fiocco, R van Doorn
Permanent alopecia after haematopoietic stem cell transplantation (HSCT) is distressing and few studies have investigated this late effect. The aim of the study was to assess the percentage of patients with alopecia and investigate risk factors for alopecia. Patients who underwent allogeneic HSCT before age 19 years, from January 1990 to January 2013, who were at least 2 years after transplant and in follow-up in our clinic were included. Alopecia was defined as clinically apparent decreased hair density. Possible risk factors considered for alopecia after HSCT included: gender, age, diagnosis, donor type, conditioning regimen: cranial irradiation (TBI/cranial radiotherapy) and/or chemotherapy, which chemotherapeutic agents were used and acute/chronic GvHD...
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28319077/non-myeloablative-allogeneic-stem-cell-transplant-with-post-transplant-cyclophosphamide-cures-the-first-adult-patient-with-congenital-dyserythropoietic-anemia
#7
A Oh, P R Patel, N Aardsma, S R Mehendale, R Chowdhery, K Sweiss, D Rondelli
No abstract text is available yet for this article.
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28319076/clinical-impact-of-hyperglycemia-on-days-0-7-after-allogeneic-stem-cell-transplantation
#8
A Kawajiri, S Fuji, Y Tanaka, C Kono, T Hirakawa, T Tanaka, R Ito, Y Inoue, K Okinaka, S Kurosawa, Y Inamoto, S-W Kim, T Yamashita, T Fukuda
In order to clarify the association between hyperglycemia during the early period after allogeneic stem cell transplantation (allo-SCT) and adverse outcomes, we retrospectively analyzed 563 consecutive patients who underwent allo-SCT at our institute between 2008 and 2015. Patients were categorized into three groups according to mean fasting blood glucose levels on days 0-7 (normoglycemia group<110 mg/dL, n=347; mild hyperglycemia group 110-149 mg/dL, n=192 and moderate/severe hyperglycemia group≥150 mg/dL, n=24)...
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28319075/autologous-hematopoietic-stem-cell-transplantation-for-pediatric-multiple-sclerosis-a-registry-based-study-of-the-autoimmune-diseases-working-party-adwp-and-pediatric-diseases-working-party-pdwp-of-the-european-society-for-blood-and-marrow-transplantation-ebmt
#9
J Burman, K Kirgizov, K Carlson, M Badoglio, G L Mancardi, G De Luca, B Casanova, J Ouyang, R Bembeeva, J Haas, P Bader, J Snowden, D Farge
Autologous hematopoietic stem cell transplantation (aHSCT) is a promising therapy for multiple sclerosis (MS), which has mainly been used in adults. The purpose of this study was to investigate efficacy and adverse events of aHSCT in the treatment of children with MS using data from the European Society for Blood and Marrow Transplantation registry. Twenty-one patients with a median follow-up time of 2.8 years could be identified. PFS at 3 years was 100%, 16 patients improved in expanded disability status scale score and only 2 patients experienced a clinical relapse...
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28319074/tregs-hype-or-hope-for-allogeneic-hematopoietic-stem-cell-transplantation
#10
REVIEW
F Lussana, M Di Ianni, A Rambaldi
The discovery of T regulatory cells has been one of the most important advances in basic immunology and has opened the door to the development of innovative therapeutic strategies for improving the outcome of solid organ and hematopoietic stem cell transplantation. Basic immunology is rapidly elucidating the complex biology of these cells even though the difficulties in purifying or even expanding them in vitro represent a major limitation to the development of clinical studies. The clinical benefit potentially associated with this therapeutic approach remains to be demonstrated...
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28319073/ex-vivo-t-cell-depletion-in-allogeneic-hematopoietic-stem-cell-transplant-past-present-and-future
#11
REVIEW
A Saad, L S Lamb
The most common cause of post-transplant mortality in patients with hematological malignancy is relapse, followed by GvHD, infections, organ toxicity and second malignancy. Immune-mediated complications such as GvHD continue to be challenging, yet amenable to control through manipulation of the T-cell compartment of the donor graft with subsequent immunomodulation after transplant. However, risk of both relapse and infection increase concomitantly with T-cell depletion (TCD) strategies that impair immune recovery...
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28319048/amino-acid-insensitive-mtorc1-regulation-enables-nutritional-stress-resilience-in-hematopoietic-stem-cells
#12
Demetrios Kalaitzidis, Dongjun Lee, Alejo Efeyan, Youmna Kfoury, Naema Nayyar, David B Sykes, Francois E Mercier, Ani Papazian, Ninib Baryawno, Gabriel D Victora, Donna Neuberg, David M Sabatini, David T Scadden
The mTOR pathway is a critical determinant of cell persistence and growth wherein mTOR complex 1 (mTORC1) mediates a balance between growth factor stimuli and nutrient availability. Amino acids or glucose facilitates mTORC1 activation by inducing RagA GTPase recruitment of mTORC1 to the lysosomal outer surface, enabling activation of mTOR by the Ras homolog Rheb. Thereby, RagA alters mTORC1-driven growth in times of nutrient abundance or scarcity. Here, we have evaluated differential nutrient-sensing dependence through RagA and mTORC1 in hematopoietic progenitors, which dynamically drive mature cell production, and hematopoietic stem cells (HSC), which provide a quiescent cellular reserve...
March 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28319046/t-cells-take-directions-from-supporting-cast-in-graft-versus-host-disease
#13
Derk Amsen
Allogeneic hematopoietic stem cell transplantation (HSCT) remains the only treatment option for several severe hematological malignancies. The development of graft-versus-host disease (GVHD) is a common complication of the procedure and results when donor T cells become activated against recipient-specific antigens. The factors that drive the alloreactive T cell response are not completely understood. In this issue of the JCI, Chung and colleagues present evidence that stromal cells within lymphoid tissue express the Notch ligands Delta-like 1/4 (DLL1 and DLL4), which in turn directly activate T cells...
March 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28318212/multiple-myeloma-diagnosis-and-treatment
#14
Thomas C Michels, Keith E Petersen
Multiple myeloma accounts for 1.6% of all cancer cases and approximately 10% of hematologic malignancies in the United States. In 2015, an estimated 28,850 new cases of multiple myeloma were diagnosed in the United States, and the disease caused more than 11,000 deaths. Patients older than 65 years account for 85% of those diagnosed with multiple myeloma, and there is a twofold increased incidence in blacks compared with whites. Patients may present with bone pain or with symptoms that are often nonspecific, such as nausea, vomiting, malaise, weakness, recurrent infections, and weight loss...
March 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/28318150/expression-of-cd4-is-correlated-with-an-unfavorable-prognosis-in-wild-type-npm1-flt3-itd-negative-cytogenetically-normal-adult-acute-myeloid-leukemia
#15
R J Guo, E G Atenafu, A D Schimmer, M D Minden, H Chang
INTRODUCTION: In the cytogenetically normal population of AML (CN-AML), FLT3-ITD-positive and wild-type NPM1 is correlated with a worse outcome, and FLT3-ITD-negative with NPM1-mut is correlated with a better outcome. This leaves a large subpopulation of CN-AML patients without NPM1 or FLT3-ITD mutations with heterogeneous outcomes with overall survivals (OS) ranging from several weeks to years. Therefore, new prognostic markers are needed to better risk stratify this subset of patients...
March 20, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28318095/clinicopathologic-and-molecular-characterization-of-myeloid-neoplasms-with-isolated-t-6-9-p23-q34
#16
V Visconte, S Shetty, B Przychodzen, C Hirsch, J Bodo, J P Maciejewski, E D Hsi, H J Rogers
INTRODUCTION: The t(6;9)(p23;q34);DEK-NUP214 [t(6;9)] abnormality is found in 0.7-1.8% of patients with acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS). FLT3-ITD mutations are detected in t(6;9) patients. The t(6;9) abnormality is associated with poor outcomes. We studied the clinicopathologic and molecular profiles of patients with AML/MDS carrying t(6;9). METHODS: We collected clinical data of nine patients with AML/MDS with isolated t(6;9) (median age = 41 years; male/female = 4/5) and genotyped DNAs using whole exome, Sanger, and targeted sequencing...
March 20, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28318017/thymic-crosstalk-restrains-the-pool-of-cortical-thymic-epithelial-cells-with-progenitor-properties
#17
Catarina Meireles, Ana R Ribeiro, Rute D Pinto, Catarina Leitão, Pedro M Rodrigues, Nuno L Alves
Cortical (cTEC) and medullary (mTEC) thymic epithelial cells establish key microenvironments for T-cell differentiation and arise from thymic epithelial cell progenitors (TEP). However, the nature of TEPs and the mechanism controlling their stemness in the postnatal thymus remain poorly defined. Using TEC clonogenic assays as a surrogate to survey TEP activity, we found that a fraction of cTECs generates specialized clonal-derived colonies, which contain cells with sustained colony-forming capacity (ClonoTECs)...
March 20, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28317860/gene-delivery-to-nile-tilapia-cells-for-transgenesis-and-the-role-of-pi3k-c2%C3%AE-in-angiogenesis
#18
Fernanda Maria Policarpo Tonelli, Samyra Maria Dos Santos Nassif Lacerda, Marcela Santos Procópio, Breno Luiz Sales Lemos, Luiz Renato de França, Rodrigo Ribeiro Resende
Microinjection is commonly performed to achieve fish transgenesis; however, due to difficulties associated with this technique, new strategies are being developed. Here we evaluate the potential of lentiviral particles to genetically modify Nile tilapia cells to achieve transgenesis using three different approaches: spermatogonial stem cell (SSC) genetic modification and transplantation (SC), in vivo transduction of gametes (GT), and fertilised egg transduction (ET). The SC protocol using larvae generates animals with sustained production of modified sperm (80% of animals with 77% maximum sperm fluorescence [MSF]), but is a time-consuming protocol (sexual maturity in Nile tilapia is achieved at 6 months of age)...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317795/iron-overload-in-hematopoietic-stem-cell-transplantation
#19
Sora Yasri, Viroj Wiwanitkit
No abstract text is available yet for this article.
March 1, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28317397/nucleos-t-ide-analogues-for-preventing-hbv-reactivation-in-immunosuppressed-patients-with-hematological-malignancies-a-network-meta-analysis
#20
Min-Yue Zhang, Gui-Qi Zhu, Ji-Na Zheng, Zhang Cheng, Sven Van Poucke, Ke-Qing Shi, Hong-Hui Huang, Fang-Yuan Chen, Ming-Hua Zheng
Abstracts Background: We aimed to evaluate the efficacy of five oral nucleos(t)ide analogues (NAs), including lamivudine, entecavir, adefovir, telbivudine and tenofovir, for the prevention of hepatitis B virus (HBV) reactivation and HBV-related complications in chronic hepatitis B virus (CHB) infected patients with hematological malignancies receiving chemotherapy or hematopoietic stem cell transplantation (HSCT) by network meta-analysis. METHODS: The search identified 28 articles involving 5 different prophylactic regimens covering 1478 participants...
March 20, 2017: Expert Review of Anti-infective Therapy
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