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https://www.readbyqxmd.com/read/28633038/hematopoietic-cell-transplantation-for-diffuse-large-b-cell-and-follicular-lymphoma-current-controversies-and-advances
#1
REVIEW
Narendranath Epperla, Mehdi Hamadani
Non-Hodgkin's lymphoma (NHL) constitutes a collection of lymphoproliferative disorders with diverse biologic, histologic, and clinical features. With a better understanding of the molecular pathogenesis, recently there have been major advances in the treatment of NHLs including addition of novel monoclonal antibodies, targeted therapies, and immune activators to the therapy armamentarium. Despite these remarkable developments, autologous hematopoietic cell transplantation (auto-HCT) remains not only a standard-of-care curative option for aggressive NHL but also an important therapeutic option for indolent NHL...
June 13, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28601677/impact-of-stem-cell-graft-on-early-viral-infections-and-immune-reconstitution-after-allogeneic-transplantation-in-adults
#2
Marina Illiaquer, Berthe-Marie Imbert-Marcille, Thierry Guillaume, Lucie Planche, Marie Rimbert, Céline Bressollette-Bodin, Amandine Le Bourgeois, Pierre Peterlin, Alice Garnier, Claire Le Houerou, Philippe Moreau, Mohamad Mohty, Patrice Chevallier
BACKGROUND: Viral infections are well-known complications after allogeneic stem cell transplant (allo-SCT). OBJECTIVES: We compared prospectively incidences of DNAemia and active infections (AI) for five opportunistic viruses (Human Herpesvirus 6 (HHV-6), Epstein-Barr virus (EBV), BK polyomavirus (BKPyV), Cytomegalovirus (CMV) and Adenovirus (ADV)) and kinetics of immune reconstitution (IR) in adults receiving either double umbilical cord blood (dUCB group) or unrelated peripheral blood stem cell (uPBSC group) allo-SCT after a reduced-intensity conditioning (RIC) regimen...
May 31, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28599286/decitabine-inhibits-t-cell-proliferation-via-a-novel-tet2-dependent-mechanism-and-exerts-potent-protective-effect-in-mouse-auto-and-allo-immunity-models
#3
Xue Wang, Jun Wang, Yong Yu, Tonghui Ma, Ping Chen, Bing Zhou, Ran Tao
Multiple sclerosis (MS) is an autoimmune disease characterized by the dysregulated immune response including innate and adaptive immune responses. Increasing evidence has proven the importance of epigenetic modification in the progression of MS. Recent studies revealed that low-dose decitabine (Dec, 5-Aza-2'-deoxycytidine), which incorporates into replicating DNA and inhibits DNA methylation, could prevent experimental autoimmune encephalomyelitis (EAE) development by increasing the number of regulatory T cells (Tregs)...
May 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28592767/immune-checkpoint-inhibitors-and-allogeneic-hematopoietic-stem-cell-transplantation
#4
Eisei Kondo, Yoshinobu Maeda
Immune checkpoint inhibitors, such as anti-CTLA-4 and anti-PD-1 antibodies, have revolutionized cancer therapy, particularly in the treatment of malignant melanoma and lung cancer. Allogeneic hematopoietic stem cell transplantation (allo-HCT) is another form of immunotherapy and is being widely used to cure high-risk hematological malignancies. However, more than one-third of patients suffer a relapse after allo-HCT and often have a poor prognosis. A phase I/Ib study to assess the safety and efficacy of ipilimumab (anti-CTLA-4 antibody) for the treatment of relapsed hematological malignancies after allo-HCT has shown that induction treatment with ipilimumab led to remissions in some patients, including those with myeloid malignancies, without eliciting severe graft versus host disease (GVHD)...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28577615/maternal-allo-recognition-of-the-fetus
#5
REVIEW
Ashley Moffett, Olympe Chazara, Francesco Colucci
Immunological adjustments are needed to accommodate the close contact between two genetically different individuals, the mother and her baby, during mammalian pregnancy. Contact occurs between fetal somatic or placental cells that enter the maternal systemic circulation or between uterine immune cells and the invading extravillous trophoblast. Here we discuss two main types of maternal allo-recognition of the fetus. One depends on avoidance of maternal T cells recognizing and responding to paternally-derived non-self human leukocyte antigens class I and class I allotypes...
June 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28576475/gut-microbiota-and-acute-graft-versus-host-disease
#6
REVIEW
Kosuke Yoshioka, Kazuhiko Kakihana, Noriko Doki, Kazuteru Ohashi
Although allogeneic stem cell transplantation (allo-SCT) is a potentially curative treatment for various hematological diseases, acute graft-versus-host disease (GVHD) is a major cause of morbidity and mortality, and its management is clinically important. Advances in biological techniques have led to great progress in understanding the complex interactions between the host and the gut microbiota. The gut microbiota clearly modulates the immune response and is associated with the pathogenesis of various disorders...
May 30, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28562647/impact-of-adipose-tissue-or-umbilical-cord-derived-mesenchymal-stem-cells-on-the-immunogenicity-of-human-cord-blood-derived-endothelial-progenitor-cells
#7
Kefang Tan, Ke Zheng, Daiye Li, Haiyuan Lu, Siqi Wang, Xuan Sun
The application of autologous endothelial progenitor cell (EPC) transplantation is a promising approach in therapeutic cardiovascular diseases and ischemic diseases. In this study, we compared the immunogenicity of EPCs, adipose tissue (AD)-derived mesenchymal stem cells (MSCs) and umbilical cord (UC)-derived MSCs by flow cytometry and the mixed lymphocyte reaction. The impact of AD-MSCs and UC-MSCs on the immunogenicity of EPCs was analyzed by the mixed lymphocyte reaction and cytokine secretion in vitro and was further tested by allogenic peripheral blood mononuclear cell (PBMC) induced immuno-rejection on a cell/matrigel graft in an SCID mouse model...
2017: PloS One
https://www.readbyqxmd.com/read/28542711/preventing-relapse-after-haematopoietic-stem-cell-transplantation-for-acute-leukaemia-the-role-of-post-transplantation-minimal-residual-disease-mrd-monitoring-and-mrd-directed-intervention
#8
REVIEW
Xiao-Dong Mo, Meng Lv, Xiao-Jun Huang
Relapse is the main cause of treatment failure after allogeneic haematopoietic stem cell transplantation (allo-HSCT) for acute leukaemia (AL). Post-transplantation minimal residual disease (MRD) monitoring enables risk stratification and identifies AL patients at higher risk of relapse. MRD assessment primarily involves the determination of leukaemia-associated immunophenotypic patterns using multiparameter flow cytometry, and the polymerase chain reaction (PCR)-based evaluation of expression levels of leukaemia-related genes (specific reciprocal gene rearrangements and other mutation types)...
May 23, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28536321/-disruption-of-gut-immune-system-caused-by-damage-of-intestinal-stem-cells-and-their-niche-in-graft-versus-host-disease-after-allogeneic-hematopoietic-stem-cell-transplantation
#9
Eiko Hayase, Takanori Teshima
Allogeneic hematopoietic stem cell transplantation(allo-SCT)is curative therapy for various hematological diseases. Graft-versus-host disease(GVHD)and infection remain the main problems in allo-SCT. Gastrointestinal tract is targeted by GVHD. In intestinal GVHD, intestinal stem cells and Paneth cells reside at the base of crypts are damaged by donor T cells. These damage leads to disruption of intestinal mucosal barrier and intestinal dysbiosis, resulting in more exaggerated GVHD. Recently, we and others have reported that R-Spondin1 and interleukin-22 as factors regenerated intestinal tissue homeostasis in murine model of bone marrow transplantation...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28521800/immunogenicity-and-immunomodulatory-effects-of-the-human-chondrocytes-hchonj
#10
Chae-Lyul Lim, Yeon-Ju Lee, Jong-Ho Cho, Heonsik Choi, Bumsup Lee, Myung Chul Lee, Sujeong Kim
BACKGROUND: Invossa™ (TissueGene-C) is a cell and gene therapy for osteoarthritis. It is composed of primary human chondrocytes (hChonJ cells) and irradiated human chondrocytes modified to express TGF-β1 (hChonJb#7 cells). The hChonJ cells were isolated from a polydactyly donor, and TGF-β1 cDNA was delivered to the cells, generating hChonJb#7 cells. Since the cells are allogeneic, the concern of immune response against cells has been raised. In this study, we investigated the immunogenicity of allogenic human chondrocyte, hChonJ cells...
May 18, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28508465/proteomics-show-antigen-presentation-processes-in-human-immune-cells-after-as03-h5n1-vaccination
#11
Allison C Galassie, Johannes B Goll, Parimal Samir, Travis L Jensen, Kristen L Hoek, Leigh M Howard, Tara M Allos, Xinnan Niu, Laura E Gordy, C Buddy Creech, Heather Hill, Sebastian Joyce, Kathryn M Edwards, Andrew J Link
Adjuvants enhance immunity elicited by vaccines through mechanisms that are poorly understood. Using a systems biology approach, we investigated temporal protein expression changes in five primary human immune cell populations: neutrophils, monocytes, natural killer (NK) cells, T-cells, and B-cells after administration of either an Adjuvant System 03 (AS03)-adjuvanted or unadjuvanted split-virus H5N1 influenza vaccine. Monocytes demonstrated the strongest differential signal between vaccine groups. On day 3 post-vaccination, several antigen presentation-related pathways, including MHC class I-mediated antigen processing and presentation, were enriched in monocytes and neutrophils and expression of HLA Class I proteins was increased in the AS03 group...
May 15, 2017: Proteomics
https://www.readbyqxmd.com/read/28495643/humoral-immune-reconstitution-kinetics-after-allogeneic-hematopoietic-stem-cell-transplantation-in-children-a-maturation-block-of-igm-memory-b-cells-may-lead-to-impaired-antibody-immune-reconstitution
#12
Hisham Abdel-Azim, Amro Elshoury, Kris M Mahadeo, Robertson Parkman, Neena Kapoor
Although T cell immune reconstitution after allogeneic hematopoietic stem cell transplantation (allo-HSCT) has been well studied, long-term B cell immune reconstitution remains less characterized. We evaluated humoral immune reconstitution among 71 pediatric allo-HSCT recipients. Although tetanus toxoid antibody levels were normal at 1 year after allo-HSCT, antipolysaccharide carbohydrate antibodies remained persistently low for up to 5 years. While naïve B cell counts normalized by 6 months, IgM memory B cell deficiency persisted for up to 2 years (P = ...
May 8, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28486431/mesenchymal-stem-cell-derived-extracellular-vesicles-a-role-in-hematopoietic-transplantation
#13
REVIEW
Luciana De Luca, Stefania Trino, Ilaria Laurenzana, Daniela Lamorte, Antonella Caivano, Luigi Del Vecchio, Pellegrino Musto
Mesenchymal stem cells (MSCs) are a heterogeneous cellular population containing different progenitors able to repair tissues, support hematopoiesis, and modulate immune and inflammatory responses. Several clinical trials have used MSCs in allogeneic hematopoietic stem cell transplantation (allo-HSCT) to prevent hematopoietic stem cell (HSC) engraftment failure, reduce aplasia post chemotherapy, and to control graft versus host disease (GvHD). The efficacy of MSCs is linked to their immune suppressive and anti-inflammatory properties primarily due to the release of soluble factors...
May 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28474504/mouse-nidovirus-ldv-infection-alleviates-graft-versus-host-disease-and-induces-type-i-ifn-dependent-inhibition-of-dendritic-cells-and-allo-responsive-t-cells
#14
Mélanie Gaignage, Reece G Marillier, Catherine Uyttenhove, Nicolas Dauguet, Anubha Saxena, Bernard Ryffel, Thomas Michiels, Jean-Paul Coutelier, Jacques Van Snick
INTRODUCTION: Viruses have developed multiple mechanisms to alter immune reactions. In 1969, it was reported that lactate dehydrogenase-elevating virus (LDV), a single stranded positive sense mouse nidovirus, delays skin allograft rejection and inhibits spleen alterations in graft versus host disease (GVHD). As the underlying mechanisms have remained unresolved and given the need for new therapies of this disease, we reassessed the effects of the virus on GVHD and tried to uncover its mode of action...
June 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28457953/ifn-%C3%AE-is-effective-for-treatment-of-minimal-residual-disease-in-patients-with-acute-leukemia-after-allogeneic-hematopoietic-stem-cell-transplantation-results-of-a-registry-study
#15
Xiao-Dong Mo, Xiao-Hui Zhang, Lan-Ping Xu, Yu Wang, Chen-Hua Yan, Huan Chen, Yu-Hong Chen, Wei Han, Feng-Rong Wang, Jing-Zhi Wang, Kai-Yan Liu, Xiao-Jun Huang
The efficacy of minimal residual disease (MRD)-directed IFN-α treatment was investigated in acute leukemia patients who were positive for MRD after allogeneic hematopoietic stem cell transplantation (allo-HSCT) (n = 107). MRD-positive status was defined as positivity for leukemia-associated aberrant immune phenotypes or positivity for Wilms' tumor gene 1 in a single bone marrow sample. Recombinant human IFN-α-2b injections were administered subcutaneously 2 to 3 times per week for 6 months. The 2-year cumulative incidence of severe acute and chronic graft-versus-host disease after IFN-α treatment was 5...
April 27, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28446226/xenotransplantation-of-interferon-gamma-pretreated-clumps-of-a-human-mesenchymal-stem-cell-extracellular-matrix-complex-induces-mouse-calvarial-bone-regeneration
#16
Kei Takeshita, Souta Motoike, Mikihito Kajiya, Nao Komatsu, Manabu Takewaki, Kazuhisa Ouhara, Tomoyuki Iwata, Katsuhiro Takeda, Noriyoshi Mizuno, Tsuyoshi Fujita, Hidemi Kurihara
BACKGROUND: Three-dimensional cultured clumps of a mesenchymal stem cell (MSC)/extracellular matrix (ECM) complex (C-MSC) consists of cells and self-produced ECM. C-MSC can regulate the cellular function in vitro and induce successful bone regeneration using ECM as a cell scaffold. Potentiating the immunomodulatory capacity of C-MSCs, which can ameliorate the allo-specific immune response, may be helpful in developing beneficial "off-the-shelf" cell therapy for tissue regeneration. It is well reported that interferon (IFN)-γ stimulates the immunosuppressive properties of MSC via upregulation of the immunomodulatory enzyme IDO...
April 26, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28444181/allogeneic-human-mesenchymal-stem-cell-infusions-for-aging-frailty
#17
Samuel Golpanian, Darcy L DiFede, Aisha Khan, Ivonne Hernandez Schulman, Ana Marie Landin, Bryon A Tompkins, Alan W Heldman, Roberto Miki, Bradley J Goldstein, Muzammil Mushtaq, Silvina Levis-Dusseau, John J Byrnes, Maureen Lowery, Makoto Natsumeda, Cindy Delgado, Russell Saltzman, Mayra Vidro-Casiano, Marietsy V Pujol, Moisaniel Da Fonseca, Anthony A Oliva, Geoff Green, Courtney Premer, Audrey Medina, Krystalenia Valasaki, Victoria Florea, Erica Anderson, Jill El-Khorazaty, Adam Mendizabal, Pascal J Goldschmidt-Clermont, Joshua M Hare
Background: Impaired endogenous stem cell repair capacity is hypothesized to be a biologic basis of frailty. Therapies that restore regenerative capacity may therefore be beneficial. This Phase 1 study evaluated the safety and potential efficacy of intravenous, allogeneic, human mesenchymal stem cell (allo-hMSC)-based therapy in patients with aging frailty. Methods: In this nonrandomized, dose-escalation study, patients received a single intravenous infusion of allo-hMSCs: 20-million (n = 5), 100-million (n = 5), or 200-million cells (n = 5)...
April 21, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28441942/rare-antibody-associated-hemolytic-transfusion-reaction-and-transfusion-related-acute-lung-injury-a-case-report
#18
Tim N Beck, Natalee G Young, Michelle L Erickson, Ignacio Prats
BACKGROUND: Hemolytic transfusion reactions and transfusion-related acute lung injury (TRALI) are life-threatening complications associated with the transfusion of blood products. Hemorrhage is one of the most common surgical complications and the risk of bleeding is particularly acute in patients with hematologic deficiencies. Management of surgical bleeding can be divided into two phases. The first phase centers on immediate control of acute bleeding and the second phase focuses on keeping the patient stable and on reducing the sequelae associated with blood transfusions and blood loss...
April 26, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28424327/rig-i-mavs-and-sting-signaling-promote-gut-integrity-during-irradiation-and-immune-mediated-tissue-injury
#19
Julius C Fischer, Michael Bscheider, Gabriel Eisenkolb, Chia-Ching Lin, Alexander Wintges, Vera Otten, Caroline A Lindemans, Simon Heidegger, Martina Rudelius, Sébastien Monette, Kori A Porosnicu Rodriguez, Marco Calafiore, Sophie Liebermann, Chen Liu, Stefan Lienenklaus, Siegfried Weiss, Ulrich Kalinke, Jürgen Ruland, Christian Peschel, Yusuke Shono, Melissa Docampo, Enrico Velardi, Robert R Jenq, Alan M Hanash, Jarrod A Dudakov, Tobias Haas, Marcel R M van den Brink, Hendrik Poeck
The molecular pathways that regulate the tissue repair function of type I interferon (IFN-I) during acute tissue damage are poorly understood. We describe a protective role for IFN-I and the RIG-I/MAVS signaling pathway during acute tissue damage in mice. Mice lacking mitochondrial antiviral-signaling protein (MAVS) were more sensitive to total body irradiation- and chemotherapy-induced intestinal barrier damage. These mice developed worse graft-versus-host disease (GVHD) in a preclinical model of allogeneic hematopoietic stem cell transplantation (allo-HSCT) than did wild-type mice...
April 19, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28423227/a-national-survey-of-screening-and-management-of-hypogammaglobulinemia-in-canadian-transplantation-centers
#20
Samuel Bourassa-Blanchette, Greg Knoll, Jason Tay, Christopher Bredeson, Donald W Cameron, Juthaporn Cowan
BACKGROUND: Infection remains one of the most common transplant-related causes of death in patients undergoing transplantation. Secondary hypogammaglobulinemia (HGG) as a component of immune suppression and deficiency is associated with both solid organ transplantation (SOT) and hematopoietic cell transplantation (HCT). Available data and clinical experience for the supplementation of immunoglobulin (Ig) in these patients is conflicting, and differing clinical opinion accounts for non-uniform practice in the use of Ig treatment...
April 18, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
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