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https://www.readbyqxmd.com/read/28330111/effect-of-stat3-inhibitor-in-chronic-myeloid-leukemia-associated-signaling-pathway-a-mathematical-modeling-simulation-and-systems-biology-study
#1
Himansu Kumar, Swapnil Tichkule, Utkarsh Raj, Saurabh Gupta, Swati Srivastava, Pritish Kumar Varadwaj
Chronic myeloid leukemia (CML) is a hematopoietic stem-cell disorder which proliferates due to abnormal growth of basophil cells. Several proangiogenic molecules have been reported to be associated in CML progression, including the hepatocyte growth factor (HGF). However, detail mechanism about the cellular distribution and function of HGF in CML is yet to be revealed. The proliferation of hematopoietic cells are regulated by some of the growth factors like interleukin 3 (IL-3), IL-6, erythropoietin, thrombopoietin, etc...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329700/ilc-poiesis-making-tissue-ilcs-from-blood
#2
Jenny Mjösberg, Luca Mazzurana
The development of human innate lymphoid cells (ILCs) remains poorly characterized. In a recent issue of Cell, Lim et al. show that human peripheral-blood CD117(+) ILCs harbor ILC precursors (ILCPs) derived from hematopoietic stem cells. Peripheral-blood ILCPs can generate all ILC subsets in vivo and in vitro.
March 21, 2017: Immunity
https://www.readbyqxmd.com/read/28329410/long-term-outcome-after-a-treosulfan-based-conditioning-regimen-for-patients-with-acute-myeloid-leukemia-a-report-from-the-acute-leukemia-working-party-of-the-european-society-for-blood-and-marrow-transplantation
#3
Arnon Nagler, Myriam Labopin, Dietrich Beelen, Fabio Ciceri, Liisa Volin, Avichai Shimoni, Roberto Foá, Noel Milpied, Jacopo Peccatori, Emmanuelle Polge, Audrey Mailhol, Mohamad Mohty, Bipin N Savani
BACKGROUND: Allogeneic hematopoietic cell transplantation (HCT) is a curative therapy for patients with acute myeloid leukemia (AML). However, post-HCT relapse and regimen-related toxicity remain significant barriers to long-term survival. In recent years, new conditioning regimens have been explored to improve transplantation outcomes in patients with AML. Treosulfan combines a potent immunosuppressive and antileukemic effect with a low toxicity profile. METHODS: To investigate the role of treosulfan-based conditioning, the European Society for Blood and Marrow Transplantation Acute Leukemia Working Party performed a registry analysis of 520 adult patients with AML who received treosulfan-based conditioning and underwent HCT between 2000 and 2012, including 225 patients in first complete remission, 107 in second or later complete remission, and 188 with active/advanced disease 188 (88 with primary refractory disease)...
March 22, 2017: Cancer
https://www.readbyqxmd.com/read/28329030/protective-factors-in-the-intestinal-microbiome-against-clostridium-difficile-infection-in-recipients-of-allogeneic-hematopoietic-stem-cell-transplantation
#4
Yeon Joo Lee, Esther P Arguello, Robert R Jenq, Eric Littmann, Grace J Kim, Liza C Miller, Lilan Ling, Cesar Figueroa, Elizabeth Robilotti, Miguel-Angel Perales, Juliet N Barker, Sergio Giralt, Marcel R M van den Brink, Eric G Pamer, Ying Taur
Background.: Clostridium difficile infection (CDI) is a frequent complication in recipients of allogeneic hematopoietic stem cell transplantation (allo-HSCT), who receive intensive treatments that significantly disrupt the intestinal microbiota. In this study, we examined the microbiota composition of allo-HSCT recipients to identify bacterial colonizers that confer protection against CDI following engraftment. Methods.: Feces collected from adult recipients allo-HSCT at engraftment were analyzed; 16S rRNA genes were sequenced and analyzed from each sample...
January 30, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28328837/atypical-presentation-of-paroxysmal-nocturnal-hemoglobinuria-treated-by-eculizumab-a-case-report
#5
Anne Quinquenel, Quentin Maestraggi, Carinne Lecoq-Lafon, Peffault de Latour Régis, Alain Delmer, Amélie Servettaz
RATIONALE: Paroxysmal nocturnal hemoglobinuria (PNH) is a nonmalignant acquired hematopoietic stem cell disease, which can be revealed by hemolytic anemia, thromboembolism, or bonemarrow failure. Thrombosis can occur at any site, but coronary thrombosis is extremely rare. Controlled trials have demonstrated that eculizimab, an inhibitor of the terminal complement cascade, was able to reduce both hemolysis and thrombosis, but its efficacy in cases of PNH with coronary thrombosis is unknown...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28328762/a-significant-influence-of-metronidazole-on-busulfan-pharmacokinetics-a-case-report-of-therapeutic-drug-monitoring
#6
Hyewon Chung, Kyung-Sang Yu, Kyung Taek Hong, Jung Yoon Choi, Che Ry Hong, Hyoung Jin Kang, Kyung Duk Park, Hee Young Shin, SeungHwan Lee
Busulfan is a cytotoxic agent used in preconditioning for hematopoietic stem cell transplantation (HSCT). Therapeutic drug monitoring of busulfan is necessary owing to its narrow therapeutic range. Patients undergoing preconditioning are susceptible to infection and might require co-administration of antibiotics. We present a case study of a three-year-old girl with precursor T-cell acute lymphoblastic leukemia who received intravenous busulfan before HSCT. Metronidazole was co-administered before the third dose of busulfan because of Clostridium difficile infection...
March 21, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28328009/microenvironmental-factors-that-regulate-mesenchymal-stem-cells-lessons-learned-from-the-study-of-heterotopic-ossification
#7
REVIEW
Chen Kan, Lijun Chen, Yangyang Hu, Haimei Lu, Yuyun Li, John A Kessler, Lixin Kan
Bone marrow contains a non-hematopoietic, clonogenic, multipotent population of stromal cells that are later called mesenchymal stem cells (MSC). Similar cells that share many common features with MSC are also found in other organs, which are thought to contribute both to normal tissue regeneration and to pathological processes such as heterotopic ossification (HO), the formation of ectopic bone in soft tissue. Understanding the microenvironmental factors that regulate MSC in vivo is essential both for understanding the biology of the stem cells and for effective translational applications of MSC...
March 22, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28327491/narrative-based-medicine-as-a-tool-for-needs-assessment-of-patients-undergoing-hematopoietic-stem-cell-transplantation
#8
Gianpaolo Gargiulo, Vincenza Sansone, Teresa Rea, Giovanna Artioli, Stefano Botti, Grazia Isabella Continisio, Paola Ferri, Daniela Masi, Antonio Maria Risitano, Silvia Simeone, Rachele La Sala
BACKGROUND AND AIM: In the last years we have seen an ever increasing number of patients with haematologic disorders who need hematopoietic stem cell transplantation (HSCT). The whole sector of HSCT results, infact to be in a continous scientific and technological clinical progress, offering a very advanced care. Despite this, some aspects are underconsidered, some of which could be fundamental to determine the success of the care pathway, such as the experience of the illness by the patient...
March 14, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28326999/nicaraven-a-potential-radioprotective-agent-has-very-limited-effects-on-the-survival-of-cancer-cells-and-the-growth-of-established-tumors
#9
Chen Yan, Lan Luo, Yoshishige Urata, Shinji Goto, Chang-Ying Guo, Tao-Sheng Li
Radiotherapy is one of the major treatment modalities for the management of various cancers, however, it is limited by the severe side effects and complications experienced by some patients. Nicaraven, a chemically synthesized hydroxyl radical-specific scavenger, has been shown to protect normal tissues from radiation-induced injury. We investigated the role of nicaraven in cancer cells and tumor growth. While nicaraven did not significantly change the colony-forming abilities and DNA damage levels in several cancer cell lines after irradiation, it significantly protected mouse bone marrow-derived hematopoietic stem cells from radiation injury...
March 2017: Radiation Research
https://www.readbyqxmd.com/read/28326848/autologous-hematopoietic-stem-cells-for-refractory-crohn-s-disease
#10
C A DiNicola, A Zand, D W Hommes
Autologous hematopoietic stem cells are gaining ground as an effective and safe treatment for treating severe refractory Crohn's disease (CD). Autologous hematopoietic stem cell therapy (AHSCT) induces resetting of the immune system by de novo regeneration of T-cell repertoire and repopulation of epithelial cells by bone-marrow derived cells to help patients achieve clinical and endoscopic remission. Areas covered: Herein, the authors discuss the use of AHSCT in treating patients with CD. Improvements in disease activity have been seen in patients with severe autoimmune disease and patients with severe CD who underwent AHSCT for a concomitant malignant hematological disease...
March 22, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28326208/a-child-as-a-donor-for-hematopoietic-stem-cell-transplantation-bioethical-justification-a-case-study-on-sickle-cell-disease
#11
Andrea Z Pereira, Ricardo Hellman, Nelson Hamerschlak, Andrea Kondo, Polianna Mara Rodrigues de Souza, Wilson Leite Pedreira, Luiz Fernando Alves Lima Mantovani, Eduardo Juan Troster, Henrique Grunspun, Marco Aurélio Scarpinella Bueno
Hematopoietic stem cell transplantation (HSCT) is an important treatment option for children with severe and refractory sickle cell disease (SCD) with debilitating clinical complications. HSCT with cells from the bone marrow of a HLA-identical sibling used in SCD has a low mortality risk, high cure rate, and high event-free survival rate after a median follow-up of 5-6 years. However, matched donors are found in only about 20% of the patients. A boy aged 8 years with SCD had a sister, <2 years old, a fully compatible donor...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28326104/bk-virus-encephalitis-in-hiv-infected-patients-case-report-and-review
#12
Luciana Antoniolli, Rafael Borges, Luciano Z Goldani
Encephalitis and meningitis due to BKPyV are unusual and emerging condition. Only a few cases of BKPyV encephalitis have been reported in hematopoietic stem cell transplant recipients, with the majority of cases presenting with concurrent hemorrhagic cystitis and HIV-infected patients. The authors report two HIV-infected patients with the diagnosis of BKPyV encephalitis and discuss the main clinical, diagnostic, and therapeutic aspects of this infection in patients with AIDS. Physicians should be aware to recognize the main clinical features and diagnose BKPyV central nervous infection in the setting of AIDS...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28325300/one-step-biallelic-and-scarless-correction-of-a-%C3%AE-thalassemia-mutation-in-patient-specific-ipscs-without-drug-selection
#13
Yali Liu, Yi Yang, Xiangjin Kang, Bin Lin, Qian Yu, Bing Song, Ge Gao, Yaoyong Chen, Xiaofang Sun, Xiaoping Li, Lei Bu, Yong Fan
Monogenic disorders (MGDs), which are caused by single gene mutations, have a serious effect on human health. Among these, β-thalassemia (β-thal) represents one of the most common hereditary hematological diseases caused by mutations in the human hemoglobin β (HBB) gene. The technologies of induced pluripotent stem cells (iPSCs) and genetic correction provide insights into the treatments for MGDs, including β-thal. However, traditional approaches for correcting mutations have a low efficiency and leave a residual footprint, which leads to some safety concerns in clinical applications...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28325262/the-roles-of-reactive-oxygen-species-ros-and-autophagy-in-the-survival-and-death-of-leukemia-cells
#14
REVIEW
Yong-Feng Chen, Hao Liu, Xin-Jing Luo, Zhiqiang Zhao, Zhen-You Zou, Jing Li, Xiao-Jing Lin, Yong Liang
As a clonal disease of hematopoietic stem cells (HSCs), the etiology and pathogenesis of leukemia is not fully understood. Recent studies suggest that cellular homeostasis plays an essential role in maintaining the function of HSCs because dysregulation of cellular homeostasis is one of the major factors underlying the malignant transformation of HSCs. Reactive oxygen species (ROS) and autophagy, key factors regulating cellular homeostasis, are commonly observed in the human body. Autophagy can be induced by ROS through a variety of signaling pathways, and conversely inhibits ROS-induced damage to cells and tissues...
April 2017: Critical Reviews in Oncology/hematology
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
#15
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/28323004/fresh-or-cryopreserved-cd34-selected-mobilized-peripheral-blood-stem-and-progenitor-cells-for-the-treatment-of-poor-graft-function-following-allogeneic-hematopoietic-cell-transplantation
#16
Armin Ghobadi, Mark A Fiala, Giridharan Ramsingh, Feng Gao, Camille N Abboud, Keith Stockerl-Goldstein, Geoffrey L Uy, Brenda J Grossman, Peter Westervelt, John F DiPersio
CD34(+)-selected stem cell boost (SCB) without conditioning have recently been utilized for poor graft function (PGF) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) with promising results. Unfortunately, many patients have been unable to receive the boost infusion as their donors were unwilling or unable to undergo an additional stem cell collection. Therefore, we conducted this study utilizing either fresh or cryopreserved peripheral blood stem cell products to create CD34(+)-selected boost infusions for the treatment of PGF...
March 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28322737/the-tead-family-transcription-factor-scalloped-regulates-blood-progenitor-maintenance-and-proliferation-in-drosophila-through-pdgf-vegfr-receptor-pvr-signaling
#17
Gabriel B Ferguson, Julian A Martinez-Agosto
The Drosophila lymph gland is a well-characterized hematopoietic organ in which a population of multipotent stem-like progenitors is maintained by a combination of signals from different cellular populations within the organ. The lymph gland serves as an ideal model both for the interrogation of signaling mechanisms involved in progenitor maintenance as well as a tool for the identification of novel regulatory mechanisms in the highly conserved process of hematopoiesis. Here, we demonstrate a requirement for the TEAD transcription factor Scalloped in the maintenance and proliferation of hematopoietic progenitors...
March 18, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28322198/multiple-and-recurrent-squamous-cell-carcinoma-of-the-oral-cavity-after-graft-versus-host-disease
#18
Xiu Hong Weng, Yu Zhen Xing, Bo Cheng
Oral squamous cell carcinoma (OSCC) is one of the most common secondary solid tumors in patients who have undergone hematopoietic stem cell transplantation (HSCT). However, according to previous reports, multiple and recurrent OSCC is very rare. The presented case shows the susceptibility to the development of secondary malignancies, particularly oral cancer, of patients who present with chronic graft-versus-host disease after HSCT. OSCC after HSCT appears to be more invasive and has a tendency to recur, with a poor prognosis...
February 22, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28321924/infectious-complications-in-patients-with-myelodysplastic-syndromes-a-review-of-the-literature-with-emphasis-on-patients-treated-with-5-azacitidine
#19
REVIEW
Markus Radsak, Uwe Platzbecker, Cornelia S Schmidt, Wolf-Karsten Hofmann, Florian Nolte
Myelodysplastic syndromes (MDS) are oligo-clonal diseases of the hematopoietic stem cell compartment resulting in peripheral cytopenias and a tendency of developing acute myeloid leukemia (AML). MDS show an incidence of approximately 4/100.000/year. However, MDS are mainly a disease of the elderly with a sharp increase in incidence in the age decade above 70 years. Due to the demographic change in western countries, it is expected that the MDS will play an increasing role for these health systems. Although anemia is the predominant cytopenia in the majority of patients, about 30-50% of patients suffer from neutropenia of varying severity...
March 21, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28321120/decision-analysis-of-allogeneic-hematopoietic-stem-cell-transplantation-for-patients-with-myelodysplastic-syndrome-stratified-according-to-the-revised-international-prognostic-scoring-system-ipss-r
#20
M G Della Porta, C H Jackson, E P Alessandrino, M Rossi, A Bacigalupo, M T van Lint, M Bernardi, B Allione, A Bosi, S Guidi, V Santini, L Malcovati, M Ubezio, C Milanesi, E Todisco, M T Voso, P Musto, F Onida, A P Iori, R Cerretti, G Grillo, A Molteni, P Pioltelli, L Borin, E Angelucci, E Oldani, S Sica, C Pascutto, V Ferretti, A Santoro, F Bonifazi, M Cazzola, A Rambaldi
Allogeneic hematopoietic stem cell transplantation (allo-SCT) represents the only curative treatment for patients with myelodysplastic syndrome (MDS), but involves non-negligible morbidity and mortality. Crucial questions in clinical decision making include the definition of optimal timing of the procedure and the benefit of cytoreduction before transplant in high risk patients. We carried out a decision analysis on 1728 MDS who received supportive care, transplantation or hypomethylating agents (HMAs). Risk assessment was based on the revised International Prognostic Scoring System (IPSS-R)...
March 21, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
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