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https://www.readbyqxmd.com/read/27908234/sustained-early-disruption-of-mitochondrial-function-contributes-to-arsenic-induced-prostate-tumorigenesis
#1
B Singh, M Kulawiec, K M Owens, A Singh, K K Singh
Arsenic is a well-known human carcinogen that affects millions of people worldwide, but the underlying mechanisms of carcinogenesis are unclear. Several epidemiological studies have suggested increased prostate cancer incidence and mortality due to exposure to arsenic. Due to lack of an animal model of arsenic-induced carcinogenesis, we used a prostate epithelial cell culture model to identify a role for mitochondria in arsenic-induced prostate cancer. Mitochondrial morphology and membrane potential was impacted within a few hours of arsenic exposure of non-neoplastic prostate epithelial cells...
October 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/27902457/tfdp3-confers-chemoresistance-in-minimal-residual-disease-within-childhood-t-cell-acute-lymphoblastic-leukemia
#2
Ming Chu, Kailin Yin, Yujun Dong, Pingzhang Wang, Yun Xue, Peng Zhou, Yuqi Wang, Yuedan Wang
Acquired drug resistance in childhood T-cell acute lymphoblastic leukemia (T-ALL) remains a significant clinical problem. In this study, a novel gene therapy target for childhood T-ALL to overcome chemoresistance was discovered: TFDP3 increased in the minimal residual disease (MRD) positive childhood T-ALL patients. Then, we established a preclinical model of resistance to induction therapy to examine the functional relevance of TFDP3 to chemoresistance in MRD derived from Jurkat/E6-1. Jurkat xenografts in NOD/SCID mice were exposed to a four drug combination (VXLD) of vincristine (VCR), dexamethasone (DEX), L-asparaginase (L-asp) and daunorubicin (DNR)...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27894459/dsm-5-somatic-symptom-disorder-in-patients-with-vertigo-and-dizziness-symptoms
#3
Karina Limburg, Heribert Sattel, Katharina Radziej, Claas Lahmann
OBJECTIVE: DSM-5 somatic symptom disorder (SSD) could potentially be a highly relevant diagnosis for patients with vertigo and dizziness. The criteria of SSD, particularly the B-criterion with its three components (cognitive, affective, behavioral), have however not yet been investigated in this patient group. METHODS: We evaluated a large sample (n=399) of outpatients presenting in a neurological setting. Physical examinations and a psychometric assessment (SCID-I) were conducted; patients completed self-report questionnaires...
December 2016: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/27894372/affective-lability-mediates-the-association-between-childhood-trauma-and-suicide-attempts-mixed-episodes-and-co-morbid-anxiety-disorders-in-bipolar-disorders
#4
M Aas, C Henry, F Bellivier, M Lajnef, S Gard, J-P Kahn, T V Lagerberg, S R Aminoff, T Bjella, M Leboyer, O A Andreassen, I Melle, B Etain
BACKGROUND: Many studies have shown associations between a history of childhood trauma and more severe or complex clinical features of bipolar disorders (BD), including suicide attempts and earlier illness onset. However, the psychopathological mechanisms underlying these associations are still unknown. Here, we investigated whether affective lability mediates the relationship between childhood trauma and the severe clinical features of BD. METHOD: A total of 342 participants with BD were recruited from France and Norway...
November 29, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27893225/correction-to-fossati-et-al-2016
#5
(no author information available yet)
Reports an error in "Profiling Pathological Narcissism According to DSM-5 Domains and Traits: A Study on Consecutively Admitted Italian Psychotherapy Patients" by Andrea Fossati, Antonella Somma, Serena Borroni, Aaron L. Pincus, Kristian E. Markon and Robert F. Krueger (Psychological Assessment, Advanced Online Publication, Jun 23, 2016, np). In the original article, several values were reversed and the mean was misreported in Table 2. The corrected Table 2 is provided in the erratum. (The following abstract of the original article appeared in record 2016-31181-001...
November 28, 2016: Psychological Assessment
https://www.readbyqxmd.com/read/27890622/multi-functional-nanoparticles-as-theranostic-agents-for-treatment-imaging-in-pancreatic-cancer
#6
L R Jaidev, David Raj Chellappan, Dhiraj Vasanth Bhavsar, Ravi Ranganathan, Banudevi Sivanantham, Anuradha Subramanian, Uma Sharma, Narnamangalam R Jagannathan, Uma Maheswari Krishnan, Swaminathan Sethuraman
: Theranostics has received considerable attention since both therapy and imaging modalities can be integrated into a single nanocarrier. In this study, fluorescent iron oxide (FIO) nanoparticles and gemcitabine (G) encapsulated poly(lactide-co-glycolide) (PLGA) nanospheres (PGFIO) conjugated with human epidermal growth factor receptor 2, (HER-2) antibody (HER-PGFIO) were prepared and characterized. HER-PGFIO showed the magnetic moment of 10 emu/g, relaxivity (r2) of 773 mM(-1)s(-1) and specific absorption rate (SAR) of 183 W/g...
November 23, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27888379/medical-co-morbidities-among-patients-with-severe-mental-illnesses-in-a-community-health-facility-in-nigeria
#7
Victor Olufolahan Lasebikan, Joachim Azegbeobor
To examine prevalence of medical comorbidity (MCM) in schizophrenia (n = 1310) and in bipolar disorder (n = 1307) and the association of high burden of MCM (≥3 MCM) with duration of untreated illness, number of episodes, functioning, poly-medication and lifetime hospitalization for the mental disorder. Participants were recruited from a private psychiatric facility in Ibadan, Nigeria between 2004 and 2013 and enquiry made about the lifetime occurrence of 20 common chronic diseases including common tropical diseases...
November 25, 2016: Community Mental Health Journal
https://www.readbyqxmd.com/read/27887866/continuously-expanding-car-nk-92-cells-display-selective-cytotoxicity-against-b-cell-leukemia-and-lymphoma
#8
Sarah Oelsner, Miriam E Friede, Congcong Zhang, Juliane Wagner, Susanne Badura, Peter Bader, Evelyn Ullrich, Oliver G Ottmann, Hans Klingemann, Torsten Tonn, Winfried S Wels
BACKGROUND AIMS: Natural killer (NK) cells can rapidly respond to transformed and stressed cells and represent an important effector cell type for adoptive immunotherapy. In addition to donor-derived primary NK cells, continuously expanding cytotoxic cell lines such as NK-92 are being developed for clinical applications. METHODS: To enhance their therapeutic utility for the treatment of B-cell malignancies, we engineered NK-92 cells by lentiviral gene transfer to express chimeric antigen receptors (CARs) that target CD19 and contain human CD3ζ (CAR 63...
November 22, 2016: Cytotherapy
https://www.readbyqxmd.com/read/27887719/leucine-rich-repeat-containing-g-protein-coupled%C3%A2-receptor%C3%A2-5-positive%C3%A2-cells%C3%A2-in-the-endometrial-stem-cell-niche
#9
Irene Cervelló, Claudia Gil-Sanchis, Xavier Santamaría, Amparo Faus, Julia Vallvé-Juanico, Patricia Díaz-Gimeno, Oriana Genolet, Antonio Pellicer, Carlos Simón
OBJECTIVE: To study, isolate and characterize leucine-rich repeat-containing heterotrimeric guanine nucleotide-binding protein-coupled receptor 5 (LGR5)-positive cells from human endometrium to determine their functional relevance. DESIGN: Prospective experimental animal study. SETTING: University research laboratories. ANIMAL(S): Nonobese diabetic mice (NOD-SCID) (strain code 394; NOD.CB17-Prkdc(scid)/NcrCrl). INTERVENTION(S): Human LGR5(+) cells were labeled with superparamagnetic iron oxide nanoparticles (SPIOs) and injected under the kidney capsule in immunocompromised mice...
November 22, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27886573/nuclear-transportation-of-exogenous-epidermal-growth-factor-receptor-and-androgen-receptor-via-extracellular-vesicles
#10
Jolene Read, Alistair Ingram, Hassan A Al Saleh, Khrystyna Platko, Kathleen Gabriel, Anil Kapoor, Jehonathan Pinthus, Fadwa Majeed, Talha Qureshi, Khalid Al-Nedawi
Epidermal growth factor receptor (EGFR) plays a central role in the progression of several human malignancies. Although EGFR is a membrane receptor, it undergoes nuclear translocation, where it has a distinct signalling pathway. Herein, we report a novel mechanism by which cancer cells can directly transport EGFR to the nucleus of other cells via extracellular vesicles (EVs). The transported receptor is active and stimulates the nuclear EGFR pathways. Interestingly, the translocation of EGFR via EVs occurs independently of the nuclear localisation sequence that is required for nuclear translocation of endogenous EGFR...
November 22, 2016: European Journal of Cancer
https://www.readbyqxmd.com/read/27882356/intra-osseous-co-transplantation-of-cd34-selected-umbilical-cord-blood-and-mesenchymal-stromal-cells
#11
Leland Metheny, Saada Eid, Karen Lingas, Jane Reese, Howard Meyerson, Alexander Tong, Marcos de Lima, Alex Y Huang
Human mesenchymal stromal cells (MSC) have been shown to support the growth and differentiation of hematopoietic stem cells (HSC). We hypothesized that intra-osseous (IO) co-transplantation of MSC and umbilical cord blood (UCB) may be effective in improving early HSC engraftment, as IO transplantation has been demonstrated to enhance UCB engraftment in NOD SCID-gamma (NSG) mice. Following non-lethal irradiation (300rads), 6 groups of NSG mice were studied: 1) intravenous (IV) UCB CD34(+) cells, 2) IV UCB CD34(+) cells and MSC, 3) IO UCB CD34(+) cells, 4) IO UCB CD34(+) cells and IO MSC, 5) IO UCB CD34(+) cells and IV MSC, and 6) IV UCB CD34(+) and IO MSC...
2016: Hematol Med Oncol
https://www.readbyqxmd.com/read/27880729/lmo2-promotes-tumor-cell-invasion-and-metastasis-in-basal-type-breast-cancer-by-altering-actin-cytoskeleton-remodeling
#12
Ye Liu, Zhaoyang Wang, Di Huang, Chao Wu, Huihui Li, Xin Zhang, Bin Meng, Zongjin Li, Tianhui Zhu, Shuang Yang, Wei Sun
LMO2 is traditionally recognized as a pivotal transcriptional regulator during embryonic hematopoiesis and angionenesis, and its ectopic expression in T lymphocyte progenitors is closely correlated to the onset of acute T lymphocytic leukemia. However, recently studies revealed complicated expression features and dual functions of LMO2 on tumor behaviors in a variety of cancer types, including breast cancers. Basal-type breast cancer is one of the breast cancer subtypes and a prognostically unfavorable subtype among all breast cancers...
November 17, 2016: Oncotarget
https://www.readbyqxmd.com/read/27879207/integration-free-erythroblast-derived-human-induced-pluripotent-stem-cells-ipscs-from-an-individual-with-ataxia-telangiectasia-a-t
#13
Niraj Bhatt, Rajib Ghosh, Sanchita Roy, Yongxing Gao, Mary Armanios, Linzhao Cheng, Sonia Franco
Peripheral blood was obtained from a 12-year old male carrying bialleleic inactivating mutations at the ATM locus, causing Ataxia-Telangiectasia (A-T). Blood erythroid cells were briefly expanded in vitro and induced pluripotent stem cells (iPSCs) were generated via transfection with episomal vectors carrying hOCT4, hSOX2, hKLF4, hMYC and hBCL2L1. SF-003 iPSCs were free of genomically integrated reprogramming genes, had the specific compound heterozygous mutations, stable karyotype, expressed pluripotency markers and formed teratomas in immunodeficient (NOD scid gamma; NGS) mice...
September 2016: Stem Cell Research
https://www.readbyqxmd.com/read/27873105/newborn-screening-for-severe-primary-immunodeficiency-diseases-in-sweden-a-2-year-pilot-trec-and-krec-screening-study
#14
Michela Barbaro, Annika Ohlsson, Stephan Borte, Susanne Jonsson, Rolf H Zetterström, Jovanka King, Jacek Winiarski, Ulrika von Döbeln, Lennart Hammarström
Newborn screening for severe primary immunodeficiencies (PID), characterized by T and/or B cell lymphopenia, was carried out in a pilot program in the Stockholm County, Sweden, over a 2-year period, encompassing 58,834 children. T cell receptor excision circles (TREC) and kappa-deleting recombination excision circles (KREC) were measured simultaneously using a quantitative PCR-based method on DNA extracted from dried blood spots (DBS), with beta-actin serving as a quality control for DNA quantity. Diagnostic cutoff levels enabling identification of newborns with milder and reversible T and/or B cell lymphopenia were also evaluated...
November 21, 2016: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/27872864/f4-80-host-macrophages-are-a-barrier-to-murine-embryonic-stem-cell-derived-hematopoietic-progenitor-engraftment-in-vivo
#15
Heather L Thompson, Nico van Rooijen, Bryce T McLelland, Jennifer O Manilay
Understanding how embryonic stem cells and their derivatives interact with the adult host immune system is critical to developing their therapeutic potential. Murine embryonic stem cell-derived hematopoietic progenitors (ESHPs) were generated via coculture with the bone marrow stromal cell line, OP9, and then transplanted into NOD.SCID.Common Gamma Chain (NSG) knockout mice, which lack B, T, and natural killer cells. Compared to control mice transplanted with adult lineage-negative bone marrow (Lin(-) BM) progenitors, ESHP-transplanted mice attained a low but significant level of donor hematopoietic chimerism...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/27872616/novel-approach-for-evaluation-of-bacteroides-fragilis-protective-role-against-bartonella-henselae-liver-damage-in-immunocompromised-murine-model
#16
Chiara Pagliuca, Annunziata G Cicatiello, Roberta Colicchio, Adelaide Greco, Raimondo Cerciello, Luigi Auletta, Sandra Albanese, Elena Scaglione, Caterina Pagliarulo, Gabiria Pastore, Gelsomina Mansueto, Arturo Brunetti, Bice Avallone, Paola Salvatore
Bartonella henselae is a gram-negative facultative intracellular bacterium and is the causative agent of cat-scratch disease. Our previous data have established that Bacteroides fragilis colonization is able to prevent B. henselae damages through the polysaccharide A (PSA) in an experimental murine model. In order to determine whether the PSA is essential for the protection against pathogenic effects of B. henselae in immunocompromised hosts, SCID mice were co-infected with B. fragilis wild type or its mutant B...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27871153/in-vivo-evaluation-of-human-embryonic-stem-cells-isolated-by-57-c11-monoclonal-antibody
#17
Won-Tae Kim, Hyun Min Lee, Min Kyu Kim, Hong Seo Choi, Chun Jeih Ryu
Background: The normal cells derived from human embryonic stem cells (hESCs) are regarded as substitutes for damaged or dysfunctional adult cells. However, tumorigenicity of hESCs remains a major challenge in clinical application of hESC-derived cell transplantation. Previously, we generated monoclonal antibody (MAb) 57-C11 specific to the surface molecule on undifferentiated hESCs. The aim of this study is to prove whether 57-C11-positive hESCs are pluripotent and tumorigenic in immunodeficient mice...
November 30, 2016: International Journal of Stem Cells
https://www.readbyqxmd.com/read/27865798/adoptive-transfer-of-ex%C3%A2-vivo-expanded-v%C3%AE-9v%C3%AE-2-t-cells-in-combination-with-zoledronic-acid-inhibits-cancer-growth-and-limits-osteolysis-in-a-murine-model-of-osteolytic-breast-cancer
#18
Aneta Zysk, Mark O DeNichilo, Vasilios Panagopoulos, Irene Zinonos, Vasilios Liapis, Shelley Hay, Wendy Ingman, Vladimir Ponomarev, Gerald Atkins, David Findlay, Andrew Zannettino, Andreas Evdokiou
Bone metastases occur in over 75% of patients with advanced breast cancer and are responsible for high levels of morbidity and mortality. In this study, ex vivo expanded cytotoxic Vγ9Vδ2 T cells isolated from human peripheral blood were tested for their anti-cancer efficacy in combination with zoledronic acid (ZOL), using a mouse model of osteolytic breast cancer. In vitro, expanded Vγ9Vδ2 T cells were cytotoxic against a panel of human breast cancer cell lines, and ZOL pre-treatment further sensitised breast cancer cells to killing by Vγ9Vδ2 T cells...
November 16, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27863512/rheumatoid-synovial-fibroblasts-differentiate-into-distinct-subsets-in-the-presence-of-cytokines-and-cartilage
#19
Adam P Croft, Amy J Naylor, Jennifer L Marshall, Debbie L Hardie, Birgit Zimmermann, Jason Turner, Guillaume Desanti, Holly Adams, Adrian I Yemm, Ulf Müller-Ladner, Jean-Michel Dayer, Elena Neumann, Andrew Filer, Christopher D Buckley
BACKGROUND: We investigated two distinct synovial fibroblast populations that were located preferentially in the lining or sub-lining layers and defined by their expression of either podoplanin (PDPN) or CD248, and explored their ability to undergo self-assembly and transmigration in vivo. METHODS: Synovial fibroblasts (SF) were cultured in vitro and phenotypic changes following stimulation with interleukin (IL)-1β, tumor necrosis factor (TNF)-α, and transforming growth factor (TGF)-β1 were examined...
November 18, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27862942/a-novel-xenogeneic-graft-versus-host-disease-model-for-investigating-the-pathological-role-of-human-cd4-or-cd8-t-cells-using-immunodeficient-nog-mice
#20
Ryoji Ito, Ikumi Katano, Kenji Kawai, Mika Yagoto, Takeshi Takahashi, Yuyo Ka, Tomoyuki Ogura, Riichi Takahashi, Mamoru Ito
Graft-versus-host disease (GVHD) is a major complication of allogenic bone marrow transplantation and involves the infiltration of donor CD4+ and/or CD8+ T cells into various organs of the recipient. The pathological role of human CD4+ and CD8+ T cells in GVHD remains controversial. In this study, we established two novel xenogeneic (xeno)-GVHD models. Human CD4+ or CD8+ T cells were purified from peripheral blood and were transplanted into immunodeficient NOD/Shi-scid IL2rg(null) (NOG) mice. Human CD8+ T cells did not induce major GVHD symptoms in conventional NOG mice...
November 15, 2016: American Journal of Transplantation
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