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Hematopoietic diseases

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https://www.readbyqxmd.com/read/28748922/regulation-of-drosophila-hematopoietic-sites-by-activin-%C3%AE-from-active-sensory-neurons
#1
Kalpana Makhijani, Brandy Alexander, Deepti Rao, Sophia Petraki, Leire Herboso, Katelyn Kukar, Itrat Batool, Stephanie Wachner, Katrina S Gold, Corinna Wong, Michael B O'Connor, Katja Brückner
An outstanding question in animal development, tissue homeostasis and disease is how cell populations adapt to sensory inputs. During Drosophila larval development, hematopoietic sites are in direct contact with sensory neuron clusters of the peripheral nervous system (PNS), and blood cells (hemocytes) require the PNS for their survival and recruitment to these microenvironments, known as Hematopoietic Pockets. Here we report that Activin-β, a TGF-β family ligand, is expressed by sensory neurons of the PNS and regulates the proliferation and adhesion of hemocytes...
July 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28748310/long-term-outcome-of-adenosine-deaminase-deficient-patients-a-single-center-experience
#2
Ori Scott, Vy Hong-Diep Kim, Brenda Reid, Anne Pham-Huy, Adelle R Atkinson, Alessandro Aiuti, Eyal Grunebaum
PURPOSE: Inherited defects in the adenosine deaminase (ADA) enzyme can cause severe combined immune deficiency (SCID) and systemic abnormalities. Management options for ADA-deficient patients include enzyme replacement therapy (ERT), hematopoietic stem cell transplantation (HSCT), and gene therapy (GT). Here, we describe the long-term benefits of these treatments. METHODS: Survival, infections, systemic sequelae, and laboratory assessments were recorded for all ADA-deficient SCID patients, managed at a single center since 1985, who survived 5 or more years following treatment...
July 26, 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28747601/leptin-and-autoimmune-disease
#3
Yoshimasa Fujita
  Leptin is secreted from adipocytes and acts mainly on the hypothalamus causing weight loss due to suppression of appetite and increased energy expenditure. On the other hand, the leptin receptor is also expressed in hematopoietic cells and its action on the immune system has become known, and the significance of leptin in autoimmune diseases has gradually become clear. It has been shown that leptin acts as an exacerbating factor in many autoimmune diseases and it is suggested that inhibition of leptin signal may be a novel therapeutic method for autoimmune diseases...
2017: Nihon Rinshō Men'eki Gakkai Kaishi, Japanese Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28747600/severe-combined-immunodeficiency-from-its-discovery-to-the-perspective
#4
Hirokazu Kanegane, Kohsuke Imai, Tomohiro Morio
  Severe combined immunodeficiency (SCID) is impaired in lymphocyte development and function. Affected children have extreme susceptibility to infections, which are fatal in the first year of life without treatment. The estimate of incidence is one in approximately 50,000 live birth. The first series of diseases were described in 1950s, and all patients died in infancy. The first transplant for SCID was carried out in 1968, and it has been described that SCID patients could be treated by hematopoietic stem cell transplantation (HSCT) since then...
2017: Nihon Rinshō Men'eki Gakkai Kaishi, Japanese Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28746590/successful-treatment-of-post-transplant-relapsed-acute-myeloid-leukemia-with-flt3-internal-tandem-duplication-using-the-combination-of-induction-chemotherapy-donor-lymphocyte-infusion-sorafenib-and-azacitidine-report-of-three-cases
#5
Paulo Vidal Campregher, Vinicius Renan Pinto de Mattos, Marco Aurélio Salvino, Fabio Pires de Souza Santos, Nelson Hamerschlak
Acute myeloid leukemia is a hematopoietic stem cell neoplastic disease associated with high morbidity and mortality. The presence of FLT3 internal tandem duplication mutations leads to high rates of relapse and decreased overall survival. Patients with FLT3 internal tandem duplication are normally treated with hematopoietic stem cell transplantation in first complete remission. Nevertheless, the incidence of post-transplant relapse is considerable in this group of patients, and the management of this clinical condition is challenging...
July 24, 2017: Einstein
https://www.readbyqxmd.com/read/28745073/current-and-future-options-for-cytomegalovirus-reactivation-in-hematopoietic-cell-transplantation-patients
#6
Johan Maertens, Sue Lyon
Report from the 43rd Annual Meeting of the European Society for Blood & Marrow Transplantation 2017, 26-29 March 2017, Marseille, France Cytomegalovirus (CMV) reactivation is a potentially life-threatening complication in immunocompromised recipients of hematopoietic cell transplantation (HCT). Its management was therefore a key topic for over 5000 delegates from 85 countries attending the 43rd Annual Meeting of the European Society for Blood & Marrow Transplantation 2017. The currently available anti-CMV armamentarium is seldom used to prevent CMV reactivation due to the associated myelosuppression and renal toxicity...
July 26, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28744010/the-jak2v617f-bearing-vascular-niche-promotes-clonal-expansion-in-myeloproliferative-neoplasms
#7
H Zhan, C H S Lin, Y Segal, K Kaushansky
The acquired kinase mutation JAK2V617F plays a central role in myeloproliferative neoplasms (MPNs). However, the mechanisms responsible for the malignant hematopoietic stem/progenitor cell (HSPC) expansion seen in patients with MPNs are not fully understood, limiting the effectiveness of current treatment. Endothelial cells (ECs) are an essential component of the hematopoietic niche, and they have been shown to express the JAK2V617F mutation in patients with MPNs. We show that the JAK2V617F-bearing vascular niche promotes the expansion of the JAK2V617F HSPCs in preference to JAK2WT HSPCs, potentially contributing to poor donor cell engraftment and disease relapse following stem cell transplantation...
July 24, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28743506/risk-factors-and-characteristics-of-falls-among-hospitalized-adult-patients-with-hematologic-diseases
#8
Yoriko Miwa, Yasuko Yamagishi, Takaaki Konuma, Tomoko Sato, Hatsuko Narita, Koji Kobayashi, Satoshi Takahashi, Arinobu Tojo
OBJECTIVES: Falls and fall-related injuries are major problems in hospitals. In hematologic patients, both disease and its treatment, including chemotherapy and allogeneic hematopoietic cell transplantation (allo-HCT), can cause anemia, febrile neutropenia, and bleeding tendency, which may result in falls and fall-related injuries. MATERIALS AND METHODS: We retrospectively analyzed 397 consecutive admissions to the hematology unit at our institute which included 201 adult patients with hematologic disease...
July 22, 2017: Journal of Geriatric Oncology
https://www.readbyqxmd.com/read/28743464/stem-cell-therapy-for-abrogating-stroke-induced-neuroinflammation-and-relevant-secondary-cell-death-mechanisms
#9
REVIEW
Connor Stonesifer, Sydney Corey, Shaila Ghanekar, Zachary Diamandis, Sandra A Acosta, Cesar V Borlongan
Ischemic stroke is a leading cause of death worldwide. A key secondary cell death mechanism mediating neurological damage following the initial episode of ischemic stroke is the upregulation of endogenous neuroinflammatory processes to levels that destroy hypoxic tissue local to the area of insult, induce apoptosis, and initiate a feedback loop of inflammatory cascades that can expand the region of damage. Stem cell therapy has emerged as an experimental treatment for stroke, and accumulating evidence supports the therapeutic efficacy of stem cells to abrogate stroke-induced inflammation...
July 22, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28743264/recent-developments-in-immunotherapy-of-acute-myeloid-leukemia
#10
REVIEW
Felix S Lichtenegger, Christina Krupka, Sascha Haubner, Thomas Köhnke, Marion Subklewe
The advent of new immunotherapeutic agents in clinical practice has revolutionized cancer treatment in the past decade, both in oncology and hematology. The transfer of the immunotherapeutic concepts to the treatment of acute myeloid leukemia (AML) is hampered by various characteristics of the disease, including non-leukemia-restricted target antigen expression profile, low endogenous immune responses, and intrinsic resistance mechanisms of the leukemic blasts against immune responses. However, considerable progress has been made in this field in the past few years...
July 25, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28742948/microbial-metabolites-and-graft-versus-host-disease
#11
Mary Riwes, Pavan Reddy
The health of mammals is a reflection of the diversity and composition of the intestinal microbiota. Alterations in the composition and functions of the intestinal microbiota have been implicated in multiple disease processes. The impact of the microbiota in health and disease is in part a function of the nutrient processing and release of metabolites. Recent studies have uncovered a major role for microbial metabolites in the function of the host immune system by which they influence disease processes such as acute graft versus host disease (GVHD), which is the main complication of allogeneic hematopoietic cell transplantation (allo-HCT)...
July 25, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28742844/control-of-runx-induced-repression-of-notch-signaling-by-mlf-and-its-partner-dnaj-1-during-drosophila-hematopoiesis
#12
Marion Miller, Aichun Chen, Vanessa Gobert, Benoit Augé, Mathilde Beau, Odile Burlet-Schiltz, Marc Haenlin, Lucas Waltzer
A tight regulation of transcription factor activity is critical for proper development. For instance, modifications of RUNX transcription factors dosage are associated with several diseases, including hematopoietic malignancies. In Drosophila, Myeloid Leukemia Factor (MLF) has been shown to control blood cell development by stabilizing the RUNX transcription factor Lozenge (Lz). However, the mechanism of action of this conserved family of proteins involved in leukemia remains largely unknown. Here we further characterized MLF's mode of action in Drosophila blood cells using proteomic, transcriptomic and genetic approaches...
July 25, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28742419/insights-into-the-management-of-chronic-myeloid-leukemia-in-resource-poor-settings-a-mexican-perspective
#13
Andrés Gomez-De-León, David Gómez-Almaguer, Guillermo J Ruiz-Delgado, Guillermo J Ruiz-Arguelles
The arrival of targeted therapy for chronic myeloid leukemia (CML) was revolutionary. However, due to the high cost of tyrosine kinase inhibitors, access to this highly effective therapy with strict monitoring strategies is limited in low to middle-income countries. In this context, following standard recommendations proposed by experts in developed countries is difficult. Areas covered: This review aims to provide an insight into the management of patients with CML living in a resource-limited setting. It addresses several issues: diagnosis, initial treatment, disease monitoring, and additional treatment alternatives including allogeneic hematopoietic stem cell transplantation...
July 25, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28741793/telomerase-enzyme-deficiency-promotes-metabolic-dysfunction-in-murine-hepatocytes-upon-dietary-stress
#14
Raquel M Alves-Paiva, Sachiko Kajigaya, Xingmin Feng, Jichun Chen, Marie Desierto, Susan Wong, Danielle M Townsley, Flávia S Donaires, Adeline Bertola, Bin Gao, Neal S Young, Rodrigo T Calado
Short telomeres and genetic telomerase defects are risk factors for some human liver diseases, ranging from non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) to cirrhosis. In murine models, telomere dysfunction has been shown to metabolically compromise hematopoietic cells, liver, and heart via the activation of the p53-PGC axis METHODS: Tert- and Terc-deficient mice were challenged with liquid high fat diet (HFD). Liver metabolic contents were analyzed by CE-TOFMS and liver fat content was confirmed by confocal and electronic microscopy RESULTS: Tert-deficient but not Terc-deficient mice develop hepatocyte injury and frank steatosis when challenged with liquid HFD...
July 25, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28741440/commentary-on-some-recent-theses-relevant-to-combating-aging-august-2017
#15
Benjamin Zealley, Aubrey D N J de Grey
Theses reviewed in this issue include "Engineering Cellular Input-Output for the Robust Control of Mammalian Cell-Based Therapies"; "Enzyme-Instructed Self-Assembly (EISA) Selectively Targets Cancer Cells"; "Exploration of helminth-derived immunoregulatory molecules as options for therapeutic intervention in allograft rejection and autoimmune disease"; "Expression of the Medial HOXA genes is indispensible for self-renewal in human hematopoietic stem cells"; "Gamma frequency entrainment attenuates amyloid load and modifies microglia"; and "Heterogeneous Distribution of Microvascular Blood Flow Contributes to Impaired Skeletal Muscle Oxygenation in Diabetes"...
July 25, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28740510/hematopoietic-stem-cell-transplantation-a-bioethical-lens
#16
REVIEW
Arcangelo Liso, Margherita Neri, Francesca Maglietta, Raffaele La Russa, Emanuela Turillazzi
Hematopoietic stem cell transplantation (HSCT) is one of a range of therapeutic options available to patients suffering from various diseases. HSCT procedure involves important ethical and legal aspects that can occur at every phase of the procedure: the clinical choice of whether to perform the procedure, pretransplantation preparation regimens, donor selection, stem cell harvest procedure, transplantation phase, and short-term and long-term follow-up care. In this discussion paper, we outline the ethical issue-facing physicians involved in HSCT...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28739424/respiratory-viruses-in-transplant-recipients-more-than-just-a-cold-clinical-syndromes-and-infection-prevention-principles
#17
REVIEW
Salma Abbas, Jillian E Raybould, Sangeeta Sastry, Oveimar de la Cruz
OBJECTIVES: The aim of this review is to provide updated information on the clinical spectrum, treatment options, and infection prevention strategies for respiratory viral infections (RVI) in both solid organ (SOT) and hematopoietic stem cell transplant (HSCT) patients. METHODS: We searched the MEDLINE and Pubmed databases for literature regarding the aforementioned aspects of RVIs, with focus on respiratory syncytial virus, adenovirus, influenza, parainfluenza, human metapneumovirus and rhinovirus...
July 21, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28739160/using-heat-maps-to-assess-the-multidimensional-association-of-comorbidities-with-survival-in-older-cancer-patients-treated-with-chemotherapy
#18
Jae Jin Lee, Jongphil Kim, Marina Sehovic, Lu Chen, Martine Extermann
OBJECTIVE: To date, most comorbidity studies have analyzed either a subgroup of frequent diseases, or used summary instruments such as the Charlson score or the Cumulative Illness Rating Scale-Geriatric (CIRS-G). Yet, comorbidity is a multidimensional construct and impacts function, treatment tolerance, and survival. We assessed how heat maps can unveil specific patterns of comorbidities associated with overall survival (OS) in older cancer patients treated with chemotherapy. MATERIAL AND METHODS: We reviewed four trials that prospectively evaluated comorbidities using CIRS-G...
July 21, 2017: Journal of Geriatric Oncology
https://www.readbyqxmd.com/read/28739099/changes-of-meibomian-glands-in-the-early-stage-of-post-hematopoietic-stem-cell-transplantation
#19
Seonjoo Kim, Young-Sik Yoo, Hyun Seung Kim, Choun-Ki Joo, Kyung-Sun Na
Hematopoietic stem cell transplantation (HSCT) is the most effective cure for hematologic malignancies. Graft-versus-host disease (GVHD) is a major complication following allogeneic HSCT, which significantly affects non-relapse mortality. And ocular manifestations of GVHD are known to occurin 60-90% of patients with chronic GVHD. Although the pathogenesis of ocular GVHD is not clearly known, it is known to progress into inflammation and fibrosis through presentation of antigens on CD4 and CD8 T cells. There is much evidence that the ocular surface and meibomian glands are severely damaged in ocular GVHD patients, and there are few observational studies on the early changes...
July 21, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28737775/fertility-preservation-issues-in-pediatric-hematopoietic-stem-cell-transplantation-practical-approaches-from-the-consensus-of-the-pediatric-diseases-working-party-of-the-ebmt-and-the-international-bfm-study-group
#20
A Balduzzi, J-H Dalle, K Jahnukainen, M von Wolff, G Lucchini, M Ifversen, K T Macklon, C Poirot, T Diesch, A Jarisch, D Bresters, I Yaniv, B Gibson, A M Willasch, R Fadini, L Ferrari, A Lawitschka, A Ahler, N Sänger, S Corbacioglu, M Ansari, R Moffat, A Dalissier, E Beohou, P Sedlacek, A Lankester, C D De Heredia Rubio, K Vettenranta, J Wachowiak, A Yesilipek, E Trigoso, T Klingebiel, C Peters, P Bader
Fertility preservation is an urgent challenge in the transplant setting. A panel of transplanters and fertility specialists within the Pediatric Diseases Working Party of the European Society for Blood and Marrow Transplantation (EBMT) and the International BFM Study Group provides specific guidelines. Patients and families should be informed of possible gender- and age-specific cryopreservation strategies that should be tailored according to the underlying disease, clinical condition and previous exposure to chemotherapy...
July 24, 2017: Bone Marrow Transplantation
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