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https://www.readbyqxmd.com/read/28646637/ts-gene-polymorphisms-correlate-with-susceptibility-to-acute-lymphocytic-leukemia-in-children
#1
Runyin Zou, Xiangling He, Yanpeng Wu, Xin Tian, Yalan You, Mincui Zheng, Wanli Li, Hui Zou, Hua Liu, Xiujuan Zhu, Chengguang Zhu
BACKGROUND Acute lymphocytic leukemia (ALL) in children is a clonal disease of bone marrow hematopoietic stem cells. This study aimed to explore the associations between MTHFR or TS genetic polymorphisms and susceptibility to acute lymphocytic leukemia (ALL) in children. MATERIAL AND METHODS This case-control study included 79 ALL patients (case group) and 102 non-ALL patients (control group). Post-PCR genomic DNA sequencing revealed MTHFR C677T and MTHFR A1298C genotypes and TS polymorphisms. The χ² test was used to compare differences in MTHFR and TS polymorphisms (including genotypic and allelic distributions) between groups...
June 24, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28646534/history-of-consolidation-is-prognostic-in-aml-patients-undergoing-allogeneic-hematopoietic-cell-transplantation-in-minimal-residual-disease-negative-first-complete-remission
#2
Armin Rashidi, Michael A Linden, Todd E DeFor, Erica Warlick, Nelli Bejanyan, Sophia Yohe, Daniel J Weisdorf, Celalettin Ustun
BACKGROUND: Prognostic factors among acute myeloid leukemia (AML) patients undergoing allogeneic hematopoietic cell transplantation (allo-HCT) in minimal residual disease (MRD)-negative first complete remission (CR1) are unknown. We retrospectively attempted to answer the following question: In AML patients undergoing allo-HCT in MRD-negative CR1, does a history of prior consolidation provide additional prognostic information? METHODS: The inclusion criteria were: (i) Age > 18 years, (ii) AML in CR1 after 1-2 cycles of intensive induction chemotherapy, with or without consolidation, (iii) Allo-HCT between 1/2003 and 4/2016 at our institution, (iv) Available standard-sensitivity 4-color flow cytometry results from a bone marrow aspiration at diagnosis and after completion of all previous chemotherapy within one month prior to HCT, (v) Flow cytometry-based MRD-negative status at the time of HCT...
June 24, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28646261/hepatic-arterial-infusion-chemotherapy-for-extensive-liver-metastases-of-breast-cancer-efficacy-safety-and-prognostic-parameters
#3
Mitra Tewes, Michael Wilhelm Peis, Simon Bogner, Jens M Theysohn, Marcus Paul Reinboldt, Martin Schuler, Anja Welt
PURPOSE: Hepatic arterial infusion chemotherapy (HAIC) is an option for patients with liver-predominant metastatic breast cancer (LMBC), when no further systemic treatment is available. But systematic reports are limited. Here we conducted a retrospective analysis of LMBC patients treated at an expert center. METHODS: Individual patient data were retrieved from the clinical data base of the West German Cancer Center. Primary endpoints included hepatic response (RECIST), progression-free survival (PFS), overall survival (OS), and toxicity...
June 23, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28645296/myd88-dependent-pro-interleukin-1%C3%AE-induction-in-dendritic-cells-exposed-to-food-grade-synthetic-amorphous-silica
#4
Hans Christian Winkler, Julian Kornprobst, Peter Wick, Lea Maria von Moos, Ioannis Trantakis, Elisabeth Maria Schraner, Barbara Bathke, Hubertus Hochrein, Mark Suter, Hanspeter Naegeli
BACKGROUND: Dendritic cells (DCs) are specialized first-line sensors of foreign materials invading the organism. These sentinel cells rely on pattern recognition receptors such as Nod-like or Toll-like receptors (TLRs) to launch immune reactions against pathogens, but also to mediate tolerance to self-antigens and, in the intestinal milieu, to nutrients and commensals. Since inappropriate DC activation contributes to inflammatory diseases and immunopathologies, a key question in the evaluation of orally ingested nanomaterials is whether their contact with DCs in the intestinal mucosa disrupts this delicate homeostatic balance between pathogen defense and tolerance...
June 23, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/28644949/hematopoietic-cell-transplantation-for-acute-lymphoblastic-leukemia-in-adult-patients
#5
REVIEW
Riad El Fakih, Syed Ahmed, Feras Alfraih, Amr Hanbali
Acute lymphoblastic leukemia (ALL) consists of precursor B ALL or T ALL phenotypes. In the pediatric population, ALL patients enjoy an 80% long-term survival with the current pediatric chemotherapy protocols as compared with 50% long-term survival in the adult population. In adults, complete remission rates are similar to those of pediatric patients; however, long-term survival is much lower with the majority of deaths attributable to relapsed disease. Postremission consolidation strategies in adults include chemotherapy, autologous, or allogeneic transplant...
June 15, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28644773/mobilized-peripheral-blood-stem-cells-versus-unstimulated-bone-marrow-as-a-graft-source-for-t-cell-replete-haploidentical-donor-transplantation-using-post-transplant-cyclophosphamide
#6
Asad Bashey, Mei-Jie Zhang, Shannon R McCurdy, Andrew St Martin, Trevor Argall, Claudio Anasetti, Stefan O Ciurea, Omotayo Fasan, Sameh Gaballa, Mehdi Hamadani, Pashna Munshi, Monzr M Al Malki, Ryotaro Nakamura, Paul V O'Donnell, Miguel-Angel Perales, Kavita Raj, Rizwan Romee, Scott Rowley, Vanderson Rocha, Rachel B Salit, Melhem Solh, Robert J Soiffer, Ephraim Joseph Fuchs, Mary Eapen
Purpose T-cell-replete HLA-haploidentical donor hematopoietic transplantation using post-transplant cyclophosphamide was originally described using bone marrow (BM). With increasing use of mobilized peripheral blood (PB), we compared transplant outcomes after PB and BM transplants. Patients and Methods A total of 681 patients with hematologic malignancy who underwent transplantation in the United States between 2009 and 2014 received BM (n = 481) or PB (n = 190) grafts. Cox regression models were built to examine differences in transplant outcomes by graft type, adjusting for patient, disease, and transplant characteristics...
June 23, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28642594/differential-effects-on-gene-transcription-and-hematopoietic-differentiation-correlate-with-gata2-mutant-disease-phenotypes
#7
C-E Chong, P Venugopal, P H Stokes, Y K Lee, P J Brautigan, D T O Yeung, M Babic, G A Engler, S W Lane, M Klingler-Hoffmann, J M Matthews, R J D'Andrea, A L Brown, C N Hahn, H S Scott
Heterozygous GATA2 mutations underlie an array of complex hematopoietic and lymphatic diseases. Analysis of the literature reporting three recurrent GATA2 germline (g) mutations (gT354M, gR396Q, gR398W) revealed different phenotype tendencies. While all three mutants differentially predispose to myeloid malignancies, there was no difference in leukemia-free survival for GATA2 patients. Despite intense interest, the molecular pathogenesis of GATA2 mutation is poorly understood. We functionally characterized a GATA2 mutant allelic series representing major disease phenotypes caused by germline and somatic (s) mutations in zinc finger (ZF) 2...
June 23, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28642279/role-of-myd88-signaling-in-the-imiquimod-induced-mouse-model-of-psoriasis-focus-on-innate-myeloid-cells
#8
Sara Costa, Olivia Marini, Dalila Bevilacqua, Anthony L DeFranco, Baidong Hou, Silvia Lonardi, William Vermi, Pamela Rodegher, Anna Panato, Franco Tagliaro, Clifford A Lowell, Marco A Cassatella, Giampiero Girolomoni, Patrizia Scapini
Psoriasis is a chronic skin disease associated with deregulated activation of immune cells and keratinocytes. In this study, we used the imiquimod (IMQ)-induced mouse model of psoriasis to dissect better the contribution of hematopoietic and skin-resident stromal cells to psoriasis development. The comparison of disease development in mice carrying the hematopoietic cell-specific deletion of MyD88 (Myd88(fl/fl)Vav-cre(+) mice) with mice carrying the total MyD88 deficiency (Myd88(-/-) mice), we show that the progression of skin and systemic inflammation, as well as of epidermal thickening, was completely dependent on MyD88 expression in hematopoietic cells...
June 22, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28642120/transfusion-challenges-in-hematology-oncology-and-hematopoietic-stem-cell-transplant-literature-review-and-local-experience
#9
REVIEW
Mohamed Elemary, Jerard Seghatchian, Julie Stakiw, Mark Bosch, Waleed Sabry, Hadi Goubran
Transfusion medicine plays a vital role in the supportive care of patients receiving therapy for hematology, oncology and hematopoietic stem cell transplants (HSCT). With advances in therapy with more intensive chemotherapy or radiotherapy, patients usually develop cytopenias and need frequent transfusion support with packed red blood cells, granulocyte transfusion or platelets to support them until they recover from the effect of therapy. HSCT poses unique challenges for transfusion medicine, since transplant recipients may require substantial transfusion support due to cytopenias associated with toxic medications, decreased marrow reserve, infection or their malignancy...
June 3, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28641661/-clinical-and-pathologic-features-of-myeloid-sarcoma
#10
Ya-Jun Jiang, Hong-Xia Wang, Wan-Chuan Zhuang, Hao Chen, Chang Zhang, Xiu-Mei Li, Gui-Hua Zhu, Yao He
OBJECTIVE: To explore the clinicopathologic features, differential diagnosis and therapy of myeloid sarcoma. METHODS: The clinical data including clinical manifestations, laboratorial tests, histopathologicical examination, immunohistochemistry and clinical prognosis of 10 patients with myeloid sarcoma were analyzed retrospectively. Among 10 patients, 5 male and 5 female, aged 23 to 71 years old (median = 36 years). RESULTS: 2 cases of myeloid sarcoma were secondary from chronic myeloid leukemia, and 1 cases of myeloid sarcoma occurred after the allogeneic hematopoietic stem cell transplantation due to acute myeloid leukemia, and the others lacked the anamnesis of malignancies...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641653/-risk-factors-and-therapeutic-outcome-of-intestinal-acute-graft-versus-host-disease-in-acute-leukemia-patients-after-haploidentical-peripheral-hematopoietic-stem-cell-transplantation
#11
Xiao-Ning Wang, Chun-Hong Sun, Cai-Li Guo, Jian-Na Yao, Shi-Huan Qi, Xin Liu, Jie-Ying Xi, Meng-Chang Wang, Peng-Cheng He, Mei Zhang
OBJECTIVE: To investigate the risk factors and therapeutic outcome of acute graft versus host disease (aGVHD) in patients with acute leukemia after haploidentical peripheral hematopoietic stem cell transplantation. METHODS: The clinical data of 19 cases of acute leukemia underwent haploidentical hematopoietic stem cell transplanttion during January 2010 and December 2010 were retrospectively analyzed. The effects of patients sex, donor-recipient sex difference, donor age, conditioning regimen, dosage of anti-thymocyte globulin(ATG), mononuclear cell and CD34(+) cell counts on the intestinal aGVHD were analyzed by Logistic regression...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641652/-significance-of-monitoring-minimal-residual-disease-by-flow-cytometry-in-acute-leukemia-patients-underwent-nonmyeloablative-allo-hsct
#12
Xiong-Xiong Liu, Tie-Qiang Liu, Mei Guo, Qi-Yun Sun, Jian-Hui Qiao, Kai-Xun Hu, Bing-Xia Li, Bo Yao, Chang-Lin Yu
OBJECTIVE: To explore the value of dynamically monitoring minimal residual disease (MRD) by flow cytometry before and after non-myeloablative allo-HSCT (NST) for prediction of acute leukemia(AL) relapse after transplantation. METHODS: The clinical data of 51 AL patients underwent NST were analyzed retrospectively in Department of Hematology of Affiliated Hospital of Academy of Military Medical Sciences from January 2011 to December 2015. All AL patients achieved the morphologic complete remission of bone marrow before transplantation...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641651/-effect-of-infusion-of-recipient-spleen-cells-at-different-time-after-murine-haploidentical-hematopoietic-stem-cell-transplantation-on-graft-versus-host-disease
#13
Jun-Hui Wang, Lei Deng, Lu Wang, Chen Liang, Yi Wang, Tie-Qiang Liu, Shan Huang, Ya-Jing Huang, Bo Cai, Zheng Dong, Hong-Li Zuo, Qi-Yun Sun, Jian-Hui Qiao, Chang-Lin Yu, Kai-Xun Hu, Hui-Sheng Ai, Mei Guo
OBJECTIVE: To explore the effect of infusing G-CSF mobilized recipient spleen cells at different time after haploidentical stem cell transplantation(HSCT) on graft-versus-host disease (GVHD) in mice and its possible mechanism. METHODS: Forty mice after HSCT were randomly divided into 4 groups (n=10): GVHD positive control group (control group), 1st d recipient cell infusion group after transplantation (+1 d group), 4th d recipient cell infusion group after transplantation(+4 d group), 7th d recipient cell infusion group after transplantation(+7 d group)...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641645/-subtype-and-functional-biomarker-changes-of-nk-cells-in-peripheral-blood-of-patients-with-myelodysplastic-syndrome
#14
Shu-Juan Xu, Zong-Hong Shao, Rong Fu, Hua-Quan Wang, Hui Liu, Chun-Yan Liu, Wei Zhang
OBJECTIVE: To analyze the subtype and functional biomarker expression changes of natural kill cells(NK) in peripheral blood of patients with myelodysplastic syndrome(MDS) and normal people, so as to evaluate the relationships between these changes and hematopoietic functions and to explore the role of NK cells in the pathogenesis of MDS. METHODS: The quantity of NK cells and the expression of biomarkers(NKp30,NKp46,NKG2A) on NK cells were detected by flow cytometry in 35 MDS patients from 2015 to 2016 in our hospital and 34 normal controls...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641612/-expression-and-significance-of-hif-1%C3%AE-in-erythropoiesis-of-secondary-iron-overload-disease-after-irradiation-damage
#15
Yi Xing, Ming-Feng Zhao, Xiao-Li Cao, Xin Jin, Jie Chen, Ping Xu, Song-Nan Sui, Yan-Yu Jiang, Xiao-Yuan He
OBJECTIVE: To study the expression of hypoxia inducible factor 1α(HIF-1α) of iron-overloaded in irradiated mice and its effect on erythropoiesis. METHODS: Twenty mice were randomly divided into 4 groups: Ctrl (control group), IR (irradiation group), IO (irradiation + iron overload group), and RAPA (rapamycin treatment group). The iron overload model was verified. The CFU-E (colony forming unit-erythroid) and BFU-E(burst colony forming unit-erythroid) were cultured; flow cytometry was used to detect the ratios of early stage (Ter119(+)CD71(-)) to late stage (Ter119(+)CD71(+)) of primitive erythroblasts; RT-PCR was used to detect the mRNA expression of HIF-1α and its related signal molecules in bone marrow cells...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641548/pediatric-cutaneous-graft-versus-host-disease-a-review
#16
Connie R Shi, Jennifer T Huang, Vinod E Nambudiri
BACKGROUND: Graft versus host disease (GVHD) is a significant complication following hematopoietic stem cell transplantation in the pediatric population. The most common clinical manifestation of GVHD is in the skin. This article will present a review of key concepts related to pediatric cutaneous GVHD, including pathophysiology, clinical epidemiology, diagnosis, and treatment options. GVHD is an immune-mediated process characterized by an inflammatory immune response in acute GVHD and mixed inflammatory and fibrotic states in chronic GVHD...
June 14, 2017: Current Pediatric Reviews
https://www.readbyqxmd.com/read/28641097/long-term-complications-after-hematopoietic-cell-transplantation
#17
REVIEW
Navneet S Majhail
The prevalence of autologous and allogeneic hematopoietic cell transplantation (HCT) survivors continues to increase. Among patients whose disease remains in remission for the first 2-5years after transplantation, it is estimated that approximately 80-90% will be alive over the subsequent 10years. However, the relative mortality rates of such patients continue to remain higher than those of their general population peers, with late complications contributing to significant long-term morbidity and mortality...
June 13, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28641096/hematopoietic-stem-cell-transplantation-for-sickle-cell-anemia-the-changing-landscape
#18
REVIEW
Adetola A Kassim, Deva Sharma
Allogeneic hematopoietic stem cell transplantation (HSCT) remains the only curative therapy for sickle cell disease (SCD); however, its use is limited by lack of suitable human leukocyte antigen (HLA)-matched donors and decreased application in older patients with significant morbidity. Myeloablative, HLA-identical sibling transplantation in children with SCD offers excellent long-term survival, with overall and event-free survival rates of 95% and 92%, respectively. However, the risk of graft-versus-host-disease, infections, infertility, and other long-term transplant complications, further limits its widespread use...
June 15, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28641094/emerging-concepts-in-cytomegalovirus-infection-following-hematopoietic-stem-cell-transplantation
#19
REVIEW
Jose F Camargo, Krishna V Komanduri
Despite the refinements in molecular methods for the detection of cytomegalovirus (CMV) and the advent of highly effective preemptive strategies, CMV remains a leading cause of morbidity and mortality in hematopoietic cell transplant (HCT) recipients. CMV can cause tissue-invasive disease including pneumonia, hepatitis, colitis, retinitis, and encephalitis. Mortality in HCT recipients with CMV disease can be as high as 60%. CMV infection has been associated with increased risk of secondary bacterial and fungal infections, increased risk of graft-versus-host disease, and high rates of nonrelapse mortality following HCT...
June 14, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28640953/overview-of-transgenic-mouse-models-of-myeloproliferative-neoplasms-mpns
#20
Andrew Dunbar, Abbas Nazir, Ross Levine
Myeloproliferative neoplasms (MPNs) are a class of hematologic diseases characterized by aberrant proliferation of one or more myeloid lineages and progressive bone marrow fibrosis. In 2005, seminal work by multiple groups identified the JAK2V617F mutation in a significant fraction of MPN patients. Since that time, murine models of JAK2V617F have greatly enhanced the understanding of the role of aberrant JAK-STAT signaling in MPN pathogenesis and have provided an in vivo pre-clinical platform that can be used to develop novel therapies...
June 22, 2017: Current Protocols in Pharmacology
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