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https://www.readbyqxmd.com/read/29334667/lithium-a-classic-drug-in-psychiatry-improves-nilotinib-mediated-antileukemic-effects
#1
Janaína Peixoto-da-Silva, Andrana K Calgarotto, Katiucha R Rocha, Caroline Palmeira-Dos-Santos, Soraya S Smaili, Gustavo J S Pereira, Fernando V Pericole, Adriana da Silva S Duarte, Sara T O Saad, Claudia Bincoletto
Although Tyrosine kinase inhibitors (TKIs) that target Bcr-Abl play a key role in Chronic Myeloid Leukemia (CML) therapy, they do not eradicate CML-initiating cells, which lead to the emergence of drug resistance. Here we used the lithium, a GSK-3 inhibitor, to attempt to potentiate the effects of nilotinib against leukemia cells. For this purpose, a K562 leukemia cell line and bone marrow cells from untreated Chronic Myeloid Leukemia (CML) patients, prior to any exposure to TKIs, were used as a model. Our results demonstrated that the combination of lithium + nilotinib (L + N) induced K562-cell death and cleaved caspase-3 when compared to lithium or nilotinib alone, accompanied by GSK-3β phosphorylation and Bcr-Abl oncoprotein levels reduction...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29334312/targeting-of-phospho-eif4e-by-homoharringtonine-eradicates-a-distinct-subset-of-human-acute-myeloid-leukemia
#2
Hong Zhou, Rong Zhen Xu, Ying Gu, Peng Fei Shi, Shenxian Qian
More than half of the patients with acute myeloid leukemia (AML) fail to achieve long-term disease-free survival with current therapies and novel therapeutic strategies are urgently needed. The effects of homoharringtonine (HHT) on the growth of AML cell lines and primary leukemia cells were examined using MTT, colony formation assay. The effects of HHT on both eukaryotic translation initiation factor 4E (eIF4E) and phospho-eIF4E(p-eIF4E) were examined through western blot and immunofluorescence staining. HHT selectively reduced levels of p-eIF4E and its downstream oncoprotein Mcl-1, and potently inhibited in vitro and in vivo the growth of a distinct subset of AML cells and primary leukemia cells expressing high level of p-eIF4E through apoptosis...
January 15, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29334015/efficacy-of-hyperbaric-oxygen-therapy-in-bacterial-biofilm-eradication
#3
Nicholas E Sanford, Jeremy E Wilkinson, Hao Nguyen, Gabe Diaz, Randall Wolcott
OBJECTIVE: Chronic wounds typically require several concurrent therapies, such as debridement, pressure offloading, and systemic and/or topical antibiotics. The aim of this study was to examine the efficacy of hyperbaric oxygen therapy (HBOT) towards reducing or eliminating bacterial biofilms in vitro and in vivo. METHOD: Efficacy was determined using in vitro grown biofilms subjected directly to HBOT for 30, 60 and 90 minutes, followed by cell viability determination using propidium monoazide-polymerase chain reaction (PMA-PCR)...
January 1, 2018: Journal of Wound Care
https://www.readbyqxmd.com/read/29333661/nanocage-therapeutics-prevailing-phagocytosis-and-immunogenic-cell-death-awakens-immunity-against-cancer
#4
Eun Jung Lee, Gi-Hoon Nam, Na Kyeong Lee, Minwoo Kih, Eunee Koh, Yoon Kyoung Kim, Yeonsun Hong, Soyoun Kim, Seung-Yoon Park, Cherlhyun Jeong, Yoosoo Yang, In-San Kim
A growing appreciation of the relationship between the immune system and the tumorigenesis has led to the development of strategies aimed at "re-editing" the immune system to kill tumors. Here, a novel tactic is reported for overcoming the activation-energy threshold of the immunosuppressive tumor microenvironment and mediating the delivery and presentation of tumor neoantigens to the host's immune system. This nature-derived nanocage not only efficiently presents ligands that enhance cancer cell phagocytosis, but also delivers drugs that induce immunogenic cancer cell death...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29333657/gelatin-methacryloyl-hydrogels-in-the-absence-of-a-crosslinker-as-3d-glioblastoma-multiforme-gbm-mimetic-microenvironment
#5
Pelin Erkoc, Fidan Seker, Tugba Bagci-Onder, Seda Kizilel
3D platforms are important for monitoring tumor progression and screening drug candidates to eradicate tumors such as glioblastoma multiforme (GBM), a malignant type of human brain tumor. Here, a new strategy is reported that exploits visible-light-induced crosslinking of gelatin where the reaction is carried out in the absence of an additional crosslinker. Visible light-induced crosslinking promotes the design of cancer microenvironment-mimetic system without compromising the cell viability during the process and absence of crosslinker facilitates the synthesis of the unique construct...
January 15, 2018: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29332704/cutaneous-squamous-cell-carcinoma-incidence-risk-factors-diagnosis-and-staging
#6
REVIEW
Syril Keena T Que, Fiona O Zwald, Chrysalyne D Schmults
Cutaneous squamous cell carcinoma (cSCC), a malignant proliferation of cutaneous epithelium, represents 20% to 50% of skin cancers. Although the majority of cSCCs are successfully eradicated by surgical excision, a subset of cSCC possesses features associated with a higher likelihood of recurrence, metastasis, and death. The proper identification of these aggressive cSCCs can guide additional work-up and management. In the first article in this continuing medical education series, we discuss the incidence, recurrence rates, mortality rates, and risk factors associated with cSCC and review the staging systems used to stratify patients into high- and low-risk groups...
February 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29332659/a-case-of-hepatic-tuberculosis-a-tuberculoma
#7
Sameer Khanijo, Pragati Tandon
Tuberculosis (TB) is a common cause of morbidity and mortality worldwide and its eradication in the United States has stalled for the first time in decades. Isolated hepatic TB is an extremely uncommon form of extrapulmonary TB. Here we present a case of a tuberculous liver abscess and suggest that TB should be considered in patients who fail to respond to antibiotics and prompt diagnostic intervention.
January 2018: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/29332456/the-combined-antitumor-effects-of-125i-radioactive-particle-implantation-and-cytokine-induced-killer-cell-therapy-on-xenograft-hepatocellular-carcinoma-in-a-mouse-model
#8
Junyong Zhang, Nian Wu, Zhengrong Lian, Huyi Feng, Qing Jiang, Xianfeng Chen, Jianping Gong, Zhengrong Qiao
The combination of radiotherapy and immunotherapy has shown great promise in eradicating tumors. For example, 125I radioactive particle implantation and cytokine-induced killer cell therapies have demonstrated efficacy in treating hepatocellular carcinoma. However, the mechanism of this combination therapy remains unknown. In this study, we utilized cytokine-induced killer cells obtained from human peripheral blood mononuclear cells along with 125I radioactive particle implantation to treat subcutaneous hepatocellular carcinoma xenograft tumors in BALB/c nude mice...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29331619/mycoplasma-pneumoniae-and-toll-like-receptors-a-mutual-avenue
#9
REVIEW
M Naghib, M Hatam-Jahromi, M Niktab, R Ahmadi, A Kariminik
Mycoplasma pneumoniae is an intracellular bacterium leading to several complications in humans. M. pneumoniae is cleared in some cases and induces complications in others. The main responsible mechanisms regarding the controversy are yet to be cleared. Toll-like receptors (TLRs) are the important cell membrane and intracellular receptors which recognize a wide range of microbial macromolecules. The roles of TLRs in the eradication of several pathogens and also induction of their related complications have been demonstrated...
January 10, 2018: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/29330996/missed-immunization-opportunities-among-children-under-5-years-of-age-dwelling-in-karachi-city
#10
Asif Khaliq, Sayeeda Amber Sayed, Syed Abdullah Hussaini, Kiran Azam, Mehak Qamar
BACKGROUND: Immunization is the safest and effective measure for preventing and eradicating various communicable diseases. A glaring immunization gap exists between developing and industrialized countries towards immunization, because the developing countries including Pakistan are still striving to provide basic immunization to their children. The purpose of this study was to access the prevalence and factors of missing immunization among under 5-year children of Karachi.. METHODS: A cross sectional study was conducted from June 2015 to October 2015 among different outpatient clinics of Karachi...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330728/analysis-of-plasma-tenascin-c-in-post-hcv-cirrhosis-a-prospective-study
#11
Jennifer H Benbow, April D Elam, Krista L Bossi, Danae L Massengill, Elizabeth Brandon-Warner, William E Anderson, Catherine R Culberson, Mark W Russo, Andrew S deLemos, Laura W Schrum
BACKGROUND AND AIM: Hepatitis C virus (HCV)-related cirrhosis, one of the most common etiologies of liver cirrhosis in the Western world, is a risk factor for hepatocellular carcinoma. To confirm and improve current effectiveness of screening and prognosis of patients with established cirrhosis, a credible, simple plasma biomarker is needed. Hepatic stellate cell activation, a pivotal event in cirrhosis development, results in increased secretion of extracellular matrix proteins, including tenascin-C (TnC)...
January 12, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29330677/evaluating-efficacy-of-landsat-derived-environmental-covariates-for-predicting-malaria-distribution-in-rural-villages-of-vhembe-district-south-africa
#12
Oupa E Malahlela, Jane M Olwoch, Clement Adjorlolo
Malaria in South Africa is still a problem despite existing efforts to eradicate the disease. In the Vhembe District Municipality, malaria prevalence is still high, with a mean incidence rate of 328.2 per 100,0000 persons/year. This study aimed at evaluating environmental covariates, such as vegetation moisture and vegetation greenness, associated with malaria vector distribution for better predictability towards rapid and efficient disease management and control. The 2005 malaria incidence data combined with Landsat 5 ETM were used in this study...
January 12, 2018: EcoHealth
https://www.readbyqxmd.com/read/29330592/genomic-characterization-of-key-bacteriophages-to-formulate-the-potential-biocontrol-agent-to-combat-enteric-pathogenic-bacteria
#13
Krupa M Parmar, Nishant A Dafale, Hitesh Tikariha, Hemant J Purohit
Combating bacterial pathogens has become a global concern especially when the antibiotics and chemical agents are failing to control the spread due to its resistance. Bacteriophages act as a safe biocontrol agent by selectively lysing the bacterial pathogens without affecting the natural beneficial microflora. The present study describes the screening of prominent enteric pathogens NDK1, NDK2, NDK3, and NDK4 (Escherichia, Klebsiella, Enterobacter, and Serratia) mostly observed in domestic wastewater; against which KNP1, KNP2, KNP3, and KNP4 phages were isolated...
January 12, 2018: Archives of Microbiology
https://www.readbyqxmd.com/read/29330392/haploidentical-hematopoietic-sct-using-helical-tomotherapy-for-total-body-irradiation-and-targeted-dose-boost-in-patients-with-high-risk-refractory-acute-lymphoblastic-leukemia
#14
Zujun Jiang, Junsong Jia, Chunyan Yue, Yan Pang, Zenghui Liu, Ling Ouyang, Hongbo Li, Jinjian Zhang, Ting Wen, Jing Li, Zhiqiang Li, Yan Wang, Yang Xiao, Haowen Xiao
A novel conditioning regimen using helical tomotherapy (HT) was developed to deliver 10 Gy for total body irradiation (TBI) and simultaneously augment dose to 12 Gy for targeted dose boost to total marrow, central nervous system leukemia, and extramedullary disease sites in patients with high-risk or relapsed/refractory acute lymphoblastic leukemia (ALL) receiving haploidentical allogeneic hematopoietic stem cell transplantation (allo-HSCT). Fourteen patients were included, eight of these patients were in first complete remission (CR1), one was in CR2, one had a partial response and four patients had refractory disease at transplantation...
January 12, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29330346/underestimation-of-staphylococcus-aureus-mrsa-and-mssa-carriage-associated-with-standard-culturing-techniques-one-third-of-carriers-missed
#15
S T J Tsang, M P McHugh, D Guerendiain, P J Gwynne, J Boyd, A H R W Simpson, T S Walsh, I F Laurenson, K E Templeton
OBJECTIVES: Nasal carriers of Staphylococcus (S.) aureus (MRSA and MSSA) have an increased risk for healthcare-associated infections. There are currently limited national screening policies for the detection of S. aureus despite the World Health Organization's recommendations. This study aimed to evaluate the diagnostic performance of molecular and culture techniques in S. aureus screening, determine the cause of any discrepancy between the diagnostic techniques, and model the potential effect of different diagnostic techniques on S...
January 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29330143/breast-cancer-targeting-through-inhibition-of-the-endoplasmic-reticulum-based-apoptosis-regulator-nrh-bcl2l10
#16
Adrien Nougarede, Nikolay Popgeorgiev, Loay Kassem, Soleilmane Omarjee, Stephane Borel, Ivan Mikaelian, Jonathan Lopez, Rudy Gadet, Olivier Marcillat, Isabelle Treilleux, Bruno O Villoutreix, Ruth Rimokh, Germain Gillet
Drug resistance and metastatic relapse remain a top challenge in breast cancer treatment. In this study, we present preclinical evidence for a strategy to eradicate advanced breast cancers by targeting the BCL2 homolog Nrh/BCL2L10, which we discovered to be overexpressed in >45% of a large cohort of breast invasive carcinomas. Nrh expression in these tumors correlated with reduced metastasis-free survival and we determined it to be an independent marker of poor prognosis. Nrh protein localized to the endoplasmic reticulum (ER)...
January 12, 2018: Cancer Research
https://www.readbyqxmd.com/read/29329686/highlighting-priority-areas-for-bovine-viral-diarrhea-control-in-italy-a-phylogeographic-approach
#17
Erika Ebranati, Stefania Lauzi, Francesco Cerutti, Claudio Caruso, Loretta Masoero, Ana Moreno, Gian Mario De Mia, Simone Peletto, Gianguglielmo Zehender, Camilla Luzzago
The prevalence and genetic diversity of bovine viral diarrhea virus (BVDV) in a geographic area are largely influenced by live animal trade and management practices. Despite control and eradication programs currently underway in several European countries, the risk of BVDV spread within and among countries is still present. BVDV-1 is the predominant type circulating in European cattle population. In this study, a phylogeographic analysis was applied to the BVDV-1 highest prevalent subtypes in Italy to reconstruct the origin and spatial-temporal distribution and to trace main viral flows between different locations to highlight priority areas for BVDV control...
January 9, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29329591/prospects-for-chimeric-antigen-receptor-modified-t-cell-therapy-for-solid-tumors
#18
REVIEW
Erhao Zhang, Jieyi Gu, Hanmei Xu
The potential for adoptive cell immunotherapy as a treatment against cancers has been demonstrated by the remarkable response in some patients with hematological malignancies using autologous T cells endowed with chimeric antigen receptors (CARs) specific for CD19. Clinical efficacy of CAR-T cell therapy for the treatment of solid tumors, however, is rare due to physical and biochemical factors. This review focuses on different aspects of multiple mechanisms of immunosuppression in solid tumors. We characterize the current state of CAR-modified T cell therapy and summarize the various strategies to combat the immunosuppressive microenvironment of solid tumors, with the aim of promoting T cell cytotoxicity and enhancing tumor cell eradication...
January 12, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29329403/host-tree-selection-by-the-invasive-argentine-ant-hymenoptera-formicidae-in-relation-to-honeydew-producing-insects
#19
Yugo Seko, Daisuke Hayasaka, Atsushi Nishino, Taizo Uchida, Francisco Sánchez-Bayo, Takuo Sawahata
The Argentine ant, Linepithema humile (Mayr; Hymenoptera: Formicidae), is one of the world's most hazardous invasive species, and thus its eradication from Japan is important. Physical and chemical controls can be expensive and cause strong adverse effects on local terrestrial ecosystems regardless of their high efficacy. Here, presence/absence of host-tree selection by Argentine ants was investigated to understand the ant-honeydew-producing insects interactions in order to develop new cultural controls compatible with biodiversity conservation...
January 10, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29329391/oxidative-burst-and-dectin-1-triggered-phagocytosis-affected-by-norepinephrine-and-endocannabinoids-implications-for-fungal-clearance-under-stress
#20
Judith-Irina Buchheim, Spencer Hoskyns, Dominique Moser, Bing Han, Elisabeth Deindl, Marion Hörl, Katharina Biere, Matthias Feuerecker, Gustav Schelling, Alexander Chouker
A prolonged stress burden is known to hamper the efficiency of both the innate and adaptive immune systems and to attenuate the stress responses by the catecholaminergic and endocannabinoid (EC) systems. Key mechanisms of innate immunity are the eradication of pathogens through phagocytosis and the respiratory burst. We tested the concentration-dependent, spontaneous and stimulated (via TNFα and fMLP) release of reactive oxygen species (ROS) by human PMNs in vitro in response to norepinephrine (NE) and AM1241, a pharmacological ligand for the endocannabinoid receptor CB2...
January 10, 2018: International Immunology
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