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https://www.readbyqxmd.com/read/29351567/whole-thorax-irradiation-of-non-human-primates-induces-persistent-nuclear-damage-and-gene-expression-changes-in-peripheral-blood-cells
#1
Shanaz A Ghandhi, Helen C Turner, Igor Shuryak, Gregory O Dugan, J Daniel Bourland, John D Olson, Janet A Tooze, Shad R Morton, Ines Batinic-Haberle, J Mark Cline, Sally A Amundson
We investigated the cytogenetic and gene expression responses of peripheral blood cells of non-human primates (NHP, Macaca mulatta) that were whole-thorax irradiated with a single dose of 10 Gy. In this model, partial irradiation of NHPs in the thoracic region (Whole Thorax Lung Irradiation, WTLI) allows the study of late radiation-induced lung injury, while avoiding acute radiation syndromes related to hematopoietic and gastrointestinal injury. A transient drop in circulating lymphocytes and platelets was seen by 9 days, followed by elevations in respiratory rate, circulating neutrophils, lymphocytes, and monocytes at 60-100 days, corresponding to computed tomography (CT) and histologic evidence of pneumonitis, and elective euthanasia of four animals...
2018: PloS One
https://www.readbyqxmd.com/read/29351430/dynamic-changes-in-nitric-oxide-synthase-expression-are-involved-in-seawater-acclimation-of-rainbow-trout-oncorhynchus-mykiss
#2
Lucie Gerber, Frank B Jensen, Steffen S Madsen
Recent research has shown that nitric oxide (NO) produced by nitric oxide synthases (Nos) is an inhibitor of ion transporter activity and a modulator of epithelial ion transport in fish but little is known on changes in the Nos/NO system during osmotic stress. We hypothesized that the Nos/NO system responds to salinity changes as an integrated part of the acclimation process. Expression and localization of nos1/Nos1 and nos2/Nos2 were investigated in gill, kidney and intestine of FW- and SW-transferred trout using qPCR, Western blotting and immunohistochemistry, along with expressional changes of major ion transporters in the gill...
December 20, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29350710/exercise-intervention-attrition-compliance-adherence-and-progression-following-hematopoietic-stem-cell-transplantation%C3%A2
#3
Tara Peters, Ruby Erdmann, Eileen Danaher Hacker
BACKGROUND: Exercise is widely touted as an effective intervention to optimize health and well-being after high-dose chemotherapy and hematopoietic stem cell transplantation. 
. OBJECTIVES: This article reports attrition, compliance, adherence, and progression from the strength training arm of the single-blind randomized, controlled trial Strength Training to Enhance Early Recovery (STEER). 
. METHODS: 37 patients were randomized to the intervention and participated in a structured strength training program introduced during hospitalization and continued for six weeks after release...
February 1, 2018: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29350698/identification-and-management-sinusoidal-obstruction-syndrome-veno-occlusive-disease-eelated-to-hematopoietic-stem-cell-transplantation%C3%A2
#4
Mairéad Ní Chonghaile, Karen Wolownik
BACKGROUND: Sinusoidal obstruction syndrome (SOS), also called hepatic veno-occlusive disease (VOD), is a potentially life-threatening complication of hematopoietic stem cell transplantation (HSCT) that affects about 1 in 7 patients undergoing this procedure. SOS/VOD is caused by the conditioning regimens administered prior to HSCT; in some cases, SOS/VOD results from chemotherapy alone. SOS/VOD usually develops within three weeks following HSCT; however, it can have later onset. 
...
February 1, 2018: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29350534/discovery-of-tetrahydroisoquinoline-containing-cxcr4-antagonists-with-improved-in-vitro-admet-properties
#5
Eric J Miller, Edgars Jecs, Valarie M Truax, Brooke M Katzman, Yesim A Tahirovic, Robert J Wilson, Katie M Kuo, Michelle B Kim, Huy H Nguyen, Manohar T Saindane, Huanyu Zhao, Tao Wang, Chi S Sum, Mary Ellen Cvijic, Gretchen M Schroeder, Lawrence J Wilson, Dennis C Liotta
CXCR4 is a 7-transmembrane receptor expressed by hematopoietic stem cells and progeny, as well as by ≥ 48 different cancers types. CXCL12, the only chemokine ligand of CXCR4, is secreted within the tumor microenvironment, providing sanctuary for CXCR4+ tumor cells from immune surveillance and chemotherapeutic elimination by 1) stimulating pro-survival signaling and 2) recruiting CXCR4+ immunosuppressive leukocytes. Additionally, distant CXCL12-rich niches attract and support CXCR4+ metastatic growths. Accordingly, CXCR4 antagonists can potentially obstruct CXCR4-mediated pro-survival signaling, recondition the CXCR4+ leukocyte infiltrate from immunosuppressive to immunoreactive, and inhibit CXCR4+ cancer cell metastasis...
January 19, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29350494/sleep-disruption-in-caregivers-of-pediatric-stem-cell-recipients
#6
Kristen Coleman, Laura Flesch, Lisa Petiniot, Abigail Pate, Li Lin, Lori Crosby, Dean W Beebe, Adam Nelson, Priscila Badia Alonso, Stella M Davies, Rachel B Baker, Christopher E Dandoy
Parents/caregivers of hospitalized patients are at risk of sleep disruption. We performed a cross-sectional quantitative and qualitative evaluation of sleep in parents/caregivers of children undergoing hematopoietic stem cell transplant (HSCT; n = 17). Additionally, we explored the frequency of room entries for hospitalized patients undergoing HSCT (n = 189 nights). Twelve caregivers (71%) demonstrated significant sleep disturbance, 12 (71%) described sleep quality as poor, 15 (88%) averaged < 6 hours of sleep per night, 14 (82%) awakened at least four times per night...
January 19, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29350425/the-impact-of-preapheresis-white-blood-cell-count-on-autologous-peripheral-blood-stem-cell-collection-efficiency-and-hsc-infusion-side-effect-rate
#7
Araci M Sakashita, Andrea T Kondo, Ana Paula H Yokoyama, Sanny M C Lira, Carolina B Bub, Aline M Souza, Andrea N F Cipolletta, Kelen C Alvarez, Nelson Hamerschlak, Jose M Kutner, Carlos S Chiattone
BACKGROUND: Autologous peripheral blood hematopoietic stem cell (PBSC) collection efficiency (CE) is reportedly affected by the patient's blood properties; however, studies to identify factors correlated with CE have shown inconsistent results. Additionally, variables such as stem cell graft granulocyte content and patient age, sex, and underlying disease, may be associated with hematopietic stem cell (HSC) infusion-related adverse reactions. In this study, we evaluated the correlation of preleukapheresis PB granulocyte count and PBSC harvest variables with CD34+ collection yield and efficiency, and thawed HSC infusion side effect occurrence...
January 19, 2018: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/29349923/magnetic-macroporous-hydrogels-as-a-novel-approach-for-perfused-stem-cell-culture-in-3d-scaffolds-via-contactless-motion-control
#8
Lisa Rödling, Esther Magano Volz, Annamarija Raic, Katharina Brändle, Matthias Franzreb, Cornelia Lee-Thedieck
There is an urgent need for 3D cell culture systems that avoid the oversimplifications and artifacts of conventional culture in 2D. However, 3D culture within the cavities of porous biomaterials or large 3D structures harboring high cell numbers is limited by the needs to nurture cells and to remove growth-limiting metabolites. To overcome the diffusion-limited transport of such soluble factors in 3D culture, mixing can be improved by pumping, stirring or shaking, but this in turn can lead to other problems...
January 19, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29349879/a-novel-pklr-gene-mutation-identified-using-advanced-molecular-techniques
#9
Yunyan He, Jianming Luo, Yonghong Lei, Siyuan Jia, Ning Liao
This study's purposes were to diagnose intractable hemolytic anemia and to provide guiding treatment for the affected family members. We performed NGS in a panel of 600 genes for blood diseases on a patient with obscure hemolytic anemia and her parents. We confirmed the diagnosis of pyruvate kinase deficiency, identified a novel homozygous mutation of the PKLR gene (NM_000298: exon 6: c.T941C: p.I314T), and ruled out other blood diseases in the Chinese family. Furthermore, amniotic fluid was taken from the mother during the second trimester, and DNA was extracted to analyze the type of PKLR gene mutation...
January 18, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29349655/total-body-irradiation-tremendously-impair-the-proliferation-differentiation-and-chromosomal-integrity-of-bone-marrow-derived-mesenchymal-stromal-stem-cells
#10
Wen-Jyi Lo, Chiao-Lin Lin, Yu-Chien Chang, Li-Yuan Bai, Chen-Yuan Lin, Ji-An Liang, Long-Yuan Li, Ling-Min Chao, Chang-Fang Chiu, Chuan-Mu Chen, Su-Peng Yeh
Total body irradiation (TBI) is frequently used in hematopoietic stem cell transplantation (HSCT) and is associated with many complications due to radiation injury to the normal cells, including normal stem cells. Nevertheless, the effects of TBI on the mesenchymal stromal stem cell (MSC) are not fully understood. Bone marrow-derived MSCs (BM-MSCs) isolated from normal adults were irradiated with 200 cGy twice daily for consecutive 3 days, a regimen identical to that used in TBI-conditioning HSCT. The characteristics, differentiation potential, cytogenetics, hematopoiesis-supporting function, and carcinogenicity of the irradiated BM-MSCs were then compared to the non-irradiated control...
January 18, 2018: Annals of Hematology
https://www.readbyqxmd.com/read/29348885/drug-resistance-in-doxorubicin-resistant-fl5-12-hematopoietic-cells-elevated-mdr1-drug-efflux-and-side-population-positive-and-decreased-bcl2-family-member-expression
#11
Linda S Steelman, Steve L Abrams, Peter Ruvolo, Vivian Ruvolo, Lucio Cocco, Stefano Ratti, Alberto M Martelli, Luca M Neri, Saverio Candido, Massimo Libra, James A McCubrey
Chemotherapeutic drug treatment can result in the emergence of drug-resistant cells. By culturing an interleukin-3 (IL-3)-dependent cell line, FL5.12 cells in the presence of the chemotherapeutic drug doxorubicin, we isolated FL/Doxo cells which are multi-drug resistant. Increased levels of drug efflux were detected in FL/Doxo cells which could be inhibited by the MDR1 inhibitor verapamil but not by the MRP1 inhibitor MK571. The effects of TP53 and MEK1 were examined by infection of FL/Doxo cells with retroviruses encoding either a dominant negative TP-53 gene (FL/Doxo+ TP53 (DN) or a constitutively-activated MEK-1 gene (FL/Doxo + MEK1 (CA)...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348881/allogeneic-stem-cell-transplantation-in-acute-lymphoblastic-leukemia-patients-older-than-60-years-a-survey-from-the-acute-leukemia-working-party-of-ebmt
#12
Gabrielle Roth-Guepin, Jonathan Canaani, Annalisa Ruggeri, Myriam Labopin, Juergen Finke, Jan J Cornelissen, Jeremy Delage, Gernot Stuhler, Monserrat Rovira, Mike Potter, Michael Stadler, Hendrik Veelken, Jean Yves Cahn, Matthew Collin, Yves Beguin, Sebastian Giebel, Arnon Nagler, Mohamad Mohty
Hematopoietic stem cell transplantation (HSCT) is being increasingly explored as a treatment modality for older patients with acute lymphoblastic leukemia (ALL). Yet, concerns regarding the long term outcome of transplantation in older patients limit the wide spread applicability of this approach. In this analysis we set out to determine the outcome of ALL patients over the age of 60 who underwent reduced intensity HSCT. Herein, we present the experience of the acute leukemia working party (ALWP) of the EBMT in this age group...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348820/effects-of-different-cytokines-on-immune-responses-of-rainbow-trout-in-a-virus-dna-vaccination-model
#13
Yongsheng Cao, Qiya Zhang, Liming Xu, Shaowu Li, Di Wang, Jingzhuang Zhao, Hongbai Liu, Jian Feng, Tongyan Lu
Seven rainbow trout cytokine genes (interleukin (IL)-2, IL-8, IL-15, IL-17, IL-1β, intracellular interferon (iIFN) 1a, and IFN-γ2) were evaluated for their adjuvant effects on a DNA vaccine, called pG, containing the glycoprotein gene of infectious hematopoietic necrosis virus (IHNV). Distinct DNA constructs in expression plasmid pcDNA3.1 encoding a cytokine gene were generated. Immunofluorescence assays in rainbow trout gonadal cells demonstrated successful protein expression from all these constructs. Subsequently, fish were immunized with pG alone or together with a cytokine expression plasmid...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348612/gwas-in-childhood-acute-lymphoblastic-leukemia-reveals-novel-genetic-associations-at-chromosomes-17q12-and-8q24-21
#14
Joseph L Wiemels, Kyle M Walsh, Adam J de Smith, Catherine Metayer, Semira Gonseth, Helen M Hansen, Stephen S Francis, Juhi Ojha, Ivan Smirnov, Lisa Barcellos, Xiaorong Xiao, Libby Morimoto, Roberta McKean-Cowdin, Rong Wang, Herbert Yu, Josephine Hoh, Andrew T DeWan, Xiaomei Ma
Childhood acute lymphoblastic leukemia (ALL) (age 0-14 years) is 20% more common in Latino Americans than non-Latino whites. We conduct a genome-wide association study in a large sample of 3263 Californian children with ALL (including 1949 of Latino heritage) and 3506 controls matched on month and year of birth, sex, and ethnicity, and an additional 12,471 controls from the Kaiser Resource for Genetic Epidemiology Research on Aging Cohort. Replication of the strongest genetic associations is performed in two independent datasets from the Children's Oncology Group and the California Childhood Leukemia Study...
January 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29348574/full-body-physical-therapy-evaluation-for-pre-and-post-hematopoietic-cell-transplant-patients-and-the-need-for-a-modified-rehabilitation-musculoskeletal-specific-grading-system-for-chronic-graft-versus-host-disease
#15
Jaleel Mohammed, Ahmed AlGhamdi, Shahrukh K Hashmi
No abstract text is available yet for this article.
January 18, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29348130/setd1a-protects-hscs-from-activation-induced-functional-decline-in-vivo
#16
Kathrin Arndt, Andrea Kranz, Juliane Fohgrub, Adrien Jolly, Anita S Bledau, Michela Di Virgilio, Mathias Lesche, Andreas Dahl, Thomas Höfer, A Francis Stewart, Claudia Waskow
The regenerative capacity of hematopoietic stem cells (HSCs) is limited by the accumulation of DNA damage. Conditional mutagenesis of the histone 3 lysine 4 (H3K4) methyltransferase, Setd1a, revealed that it is required for the expression of DNA damage recognition and repair pathways in HSCs. Specific deletion of Setd1a in adult long-term (LT)-HSCs is compatible with adult life and has little effect on the maintenance of phenotypic LT-HSCs in the bone marrow. However, SETD1A-deficient LT-HSCs lose their transcriptional cellular identity accompanied by loss of their proliferative capacity and stem cell function under replicative stress in situ and after transplantation...
January 18, 2018: Blood
https://www.readbyqxmd.com/read/29348127/murine-chronic-graft-versus-host-disease-proteome-profiling-discovers-ccl15-as-a-novel-biomarker-in-patients
#17
Jing Du, Ryan Flynn, Katelyn Paz, Hong-Gang Ren, Yuko Ogata, Qing Zhang, Philip R Gafken, Barry E Storer, Nathan H Roy, Janis K Burkhardt, Wendy Mathews, Jakub Tolar, Stephanie J Lee, Bruce R Blazar, Sophie Paczesny
Improved diagnostic and treatment methods are needed for chronic graft-versus-host disease (cGVHD), the leading cause of late non-relapse mortality (NRM) in long-term survivors of allogenic hematopoietic cell transplantation (allo-HCT). Validated biomarkers that facilitate disease diagnosis, and classification generally are lacking in cGVHD. Here, we conducted whole serum proteomics analysis of a well-established murine multi-organ system cGVHD model. We discovered 4 up-regulated proteins during cGVHD that are targetable by genetic ablation or blocking antibodies, including the RAS and JUN kinase activator, CRKL, and CXCL7, CCL8 and CCL9 chemokines...
January 18, 2018: Blood
https://www.readbyqxmd.com/read/29348122/macrophage-transitions-in-heart-valve-development-and-myxomatous-valve-disease
#18
Alexia Hulin, Lindsey J Anstine, Andrew J Kim, Sarah J Potter, Tony DeFalco, Joy Lincoln, Katherine E Yutzey
OBJECTIVE: Hematopoietic-derived cells have been reported in heart valves but remain poorly characterized. Interestingly, recent studies reveal infiltration of leukocytes and increased macrophages in human myxomatous mitral valves. Nevertheless, timing and contribution of macrophages in normal valves and myxomatous valve disease are still unknown. The objective is to characterize leukocytes during postnatal heart valve maturation and identify macrophage subsets in myxomatous valve disease...
January 18, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29346765/characterization-of-endothelial-cells-associated-with-hematopoietic-niche-formation-in-humans-identifies-il-33-as-an-anabolic-factor
#19
Keane Jared Guillaume Kenswil, Adrian Christopher Jaramillo, Zhen Ping, Si Chen, Remco Michiel Hoogenboezem, Maria Athina Mylona, Maria Niken Adisty, Eric Moniqué Johannes Bindels, Pieter Koen Bos, Hans Stoop, King Hong Lam, Bram van Eerden, Tom Cupedo, Marc Hermanus Gerardus Petrus Raaijmakers
Bone marrow formation requires an orchestrated interplay between osteogenesis, angiogenesis, and hematopoiesis that is thought to be mediated by endothelial cells. The nature of the endothelial cells and the molecular mechanisms underlying these events remain unclear in humans. Here, we identify a subset of endoglin-expressing endothelial cells enriched in human bone marrow during fetal ontogeny and upon regeneration after chemotherapeutic injury. Comprehensive transcriptional characterization by massive parallel RNA sequencing of these cells reveals a phenotypic and molecular similarity to murine type H endothelium and activation of angiocrine factors implicated in hematopoiesis, osteogenesis, and angiogenesis...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346763/derepression-of-the-iroquois-homeodomain-transcription-factor-gene-irx3-confers-differentiation-block-in-acute-leukemia
#20
Tim D D Somerville, Fabrizio Simeoni, John A Chadwick, Emma L Williams, Gary J Spencer, Katalin Boros, Christopher Wirth, Eleni Tholouli, Richard J Byers, Tim C P Somervaille
The Iroquois homeodomain transcription factor gene IRX3 is expressed in the developing nervous system, limb buds, and heart, and transcript levels specify obesity risk in humans. We now report a functional role for IRX3 in human acute leukemia. Although transcript levels are very low in normal human bone marrow cells, high IRX3 expression is found in ∼30% of patients with acute myeloid leukemia (AML), ∼50% with T-acute lymphoblastic leukemia, and ∼20% with B-acute lymphoblastic leukemia, frequently in association with high-level HOXA gene expression...
January 16, 2018: Cell Reports
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