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https://www.readbyqxmd.com/read/29243184/study-of-myb-nfib-chimeric-gene-expression-tumor-angiogenesis-and-proliferation-in-adenoid-cystic-carcinoma-of-salivary-gland
#1
Junya Ono, Yasuo Okada
Adenoid cystic carcinoma (ACC) is one of the common malignant tumors in salivary glands, and the clinical prognosis is poor with frequent distant metastasis which may lead to death. Expression of the MYB-NFIB chimeric gene in ACC has been reported recently. MYB is an oncogene with transcription regulating functions, and NFIB encodes nuclear transcription factor although detailed functions are unknown. This study investigated whether MYB-NFIB chimeric gene expression affects tumor angiogenesis and proliferation in salivary gland ACC...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29242852/prospective-study-of-nonmyeloablative-hla-mismatched-unrelated-bmt-with-high-dose-posttransplantation-cyclophosphamide
#2
Yvette L Kasamon, Richard F Ambinder, Ephraim J Fuchs, Marianna Zahurak, Gary L Rosner, Javier Bolaños-Meade, Mark J Levis, Douglas E Gladstone, Carol Ann Huff, Lode J Swinnen, William H Matsui, Ivan Borrello, Robert A Brodsky, Richard J Jones, Leo Luznik
Allogeneic blood or marrow transplantation (BMT) candidates may lack HLA-matched, related haploidentical, and unrelated umbilical cord options. Barriers to partially HLA-mismatched, unrelated donor (mMUD) BMT include excess graft-versus-host disease (GVHD), graft failure, and death. We prospectively studied nonmyeloablative (NMA) mMUD BMT with high-dose posttransplantation cyclophosphamide (PTCy) for patients with hematologic malignancies. Three transplants were performed with busulfan/fludarabine conditioning, with subsequent change to fludarabine/Cy/total body irradiation (flu/Cy/TBI)...
2017: Blood Advances
https://www.readbyqxmd.com/read/29242639/development-of-an-adenovirus-vector-vaccine-platform-for-targeting-dendritic-cells
#3
Piyush K Sharma, Igor P Dmitriev, Elena A Kashentseva, Geert Raes, Lijin Li, Samuel W Kim, Zhi-Hong Lu, Jeffrey M Arbeit, Timothy P Fleming, Sergey A Kaliberov, S Peter Goedegebuure, David T Curiel, William E Gillanders
Adenoviral (Ad) vector vaccines represent one of the most promising modern vaccine platforms, and Ad vector vaccines are currently being investigated in human clinical trials for infectious disease and cancer. Our studies have shown that specific targeting of adenovirus to dendritic cells dramatically enhanced vaccine efficacy. However, this was achieved using a molecular adapter, thereby necessitating a two component vector approach. To address the mandates of clinical translation of our strategy, we here sought to accomplish the goal of DC targeting with a single-component adenovirus vector approach...
December 15, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/29241563/two-metallocarboxypeptidase-inhibitors-are-implicated-in-tomato-fruit-development-and-regulated-by-the-inner-no-outer-transcription-factor
#4
B Molesini, G L Rotino, V Dusi, R Chignola, T Sala, G Mennella, G Francese, T Pandolfini
The TCMP-1 and TCMP-2 genes of tomato code for metallocarboxypeptidase inhibitors and show sequential, tightly regulated expression patterns during flower and fruit development. In particular, TCMP-1 is highly expressed in flower buds before anthesis, while TCMP-2 in ripe fruits. Their expression pattern suggests that they might play a role in fruit development. Here, to investigate their function, we altered their endogenous levels by generating transgenic plants harbouring a chimeric gene expressing the TCMP-1 coding sequence under the control of the TCMP-2 promoter...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241547/car-t-cells-releasing-il-18-convert-to-t-bethigh-foxo1low-effectors-that-exhibit-augmented-activity-against-advanced-solid-tumors
#5
Markus Chmielewski, Hinrich Abken
Adoptive therapy with chimeric antigen receptor (CAR)-redirected T cells has achieved remarkable efficacy in the treatment of hematopoietic malignancies. However, eradicating large solid tumors in advanced stages of the disease remains challenging. We explored augmentation of the anti-tumor immune reaction by establishing an acute inflammatory reaction. Systematic screening indicates that IL-18 polarizes CAR T cells toward T-bethigh FoxO1low effectors with an acute inflammatory response. CAR T cells engineered with inducible IL-18 release exhibited superior activity against large pancreatic and lung tumors that were refractory to CAR T cells without cytokines...
December 12, 2017: Cell Reports
https://www.readbyqxmd.com/read/29240974/increased-xylose-affinity-of-hxt2-through-gene-shuffling-of-hexose-transporters-in-saccharomyces-cerevisiae
#6
Jeroen G Nijland, Hyun Yong Shin, Paul P de Waal, Paul Klaassen, Arnold J M Driessen
AIMS: Optimizing D-xylose transport in Saccharomyces cerevisiae is essential for efficient bioethanol production from cellulosic materials. We have used a gene shuffling approach of hexose (Hxt) transporters in order to increase the affinity for D-xylose. METHODS AND RESULTS: Various libraries were transformed to a hexose transporter deletion strain and shuffled genes were selected via growth on low concentrations of D-xylose. This screening yielded two homologous fusion proteins (fusion 9,4 and 9,6), both consisting of the major central part of Hxt2 and various smaller parts of other Hxt proteins...
December 14, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29240691/absence-of-correlation-between-chimeric-rna-and-aging
#7
Reyna Huang, Shailesh Kumar, Hui Li
Chimeric RNAs have been recognized as a phenomenon not unique to cancer cells. They also exist in normal physiology. Aging is often characterized by deregulation of molecular and cellular mechanisms, including loss of heterochromatin, increased transcriptional noise, less tight control on alternative splicing, and more stress-induced changes. It is thus assumed that chimeric RNAs are more abundant in older people. In this study, we conducted a preliminary investigation to identify any chimeric RNAs with age-based trends in their expression levels in blood samples...
December 14, 2017: Genes
https://www.readbyqxmd.com/read/29239915/preclinical-assessment-of-car-t-cell-therapy-targeting-the-tumor-antigen-5t4-in-ovarian-cancer
#8
Gemma L Owens, Victoria E Sheard, Milena Kalaitsidou, Daniel Blount, Yatish Lad, Eleanor J Cheadle, Richard J Edmondson, Gurdeep Kooner, David E Gilham, Richard Harrop
Chimeric antigen receptor (CAR) T cells represent a novel targeted approach to overcome both quantitative and qualitative shortfalls of the host immune system relating to the detection and subsequent destruction of tumors. The identification of antigens expressed specifically on the surface of tumor cells is a critical first step in the ability to utilize CAR T cells for the treatment of cancer. The 5T4 is a tumor-associated antigen which is expressed on the cell surface of most solid tumors including ovarian cancer...
December 12, 2017: Journal of Immunotherapy
https://www.readbyqxmd.com/read/29239714/fusion-proteins-towards-fungi-and-bacteria-in-plant-protection
#9
Ana Margarida Pinheiro, Alexandra Carreira, Ricardo B Ferreira, Sara Monteiro
In agriculture, although fungi are considered the foremost problem, infections by bacteria also cause significant economical losses. The presence of different diseases in crops often leads to a misuse of the proper therapeutic, or the combination of different diseases forces the use of more than one pesticide. This work concerns the development of a 'super-Blad': a chimeric protein consisting of Blad polypeptide, the active ingredient of a biological fungicide already on the market, and two selected peptides, SP10-5 and Sub5, proven to possess biological potential as antibacterial agents...
December 14, 2017: Microbiology
https://www.readbyqxmd.com/read/29238471/the-effects-of-specific-expression-of-apoptin-under-the-control-of-pses-and-psa-promoter-on-cell-death-and-apoptosis-of-lncap-cells
#10
Vida Mohammadi, Abbas Behzad Behbahani, Gholam Reza Rafiee, Seyed Younes Hosseini, Marzieh Alizadeh Zarei, Mohammad Ali Okhovat, Mohammad Ali Takhshid
Objectives: Apoptotic effect of apoptin has been demonstrated in numerous studies. However, its tumor specificity has been questioned by some reports. The aim of this study was to confine the expression of apoptin in the prostate tumor cells by inducing its gene expression under the control of a chimeric enhancer composing of prostate-specific membrane antigen (PSMA) and prostate-specific antigen (PSA) regulatory elements (PSES). Furthermore, we investigated the effects of apoptin expression on LNCaP prostate carcinoma cell survival and apoptosis using MTT assay and annexin V/7-AAD flow cytometry assay...
December 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29237829/unexpected-functional-divergence-of-bat-influenza-virus-ns1-proteins
#11
Hannah L Turkington, Mindaugas Juozapaitis, Nikos Tsolakos, Eugenia Corrales-Aguilar, Martin Schwemmle, Benjamin G Hale
Recently, two influenza A virus (FLUAV) genomes were identified in Central and South American bats. These sequences exhibit notable divergence from classical FLUAV counterparts, and functionally, bat FLUAV glycoproteins lack canonical receptor binding and destroying activity. Nevertheless, other features that distinguish these viruses from classical FLUAVs have yet to be explored. Here, we studied the viral non-structural protein, NS1, a virulence factor that modulates host signaling to promote efficient propagation...
December 13, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29237828/identification-of-novel-structural-determinants-in-mw965-env-that-regulate-the-neutralization-phenotype-and-conformational-masking-potential-of-primary-hiv-1-isolates
#12
Zakiya M Qualls, Alok Choudhary, William Honnen, Raja Prattipati, James E Robinson, Abraham Pinter
The subtype C HIV-1 isolate MW965.26 is a highly neutralization-sensitive tier-1a primary isolate that is widely used in vaccine studies, but the basis for the sensitive neutralization phenotype of this isolate is not known. Substituting the MW965.26 V1/V2 domain into a neutralization-sensitive SF162 Env clone resulted in high resistance to standard anti-V3 monoclonal antibodies, demonstrating that this region possessed strong masking activity in a standard Env backbone and indicating that determinants elsewhere in MW965...
December 13, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29236774/ephrina1-fc-attenuates-myocardial-ischemia-reperfusion-injury-in-mice
#13
Augustin DuSablon, Justin Parks, K'Shylah Whitehurst, Heather Estes, Robert Chase, Eleftherios Vlahos, Uma Sharma, David Wert, Jitka Virag
EphrinA1, a membrane-bound receptor tyrosine kinase ligand expressed in healthy cardiomyocytes, is lost in injured cells following myocardial infarction. Previously, we have reported that a single intramyocardial injection of chimeric ephrinA1-Fc at the time of ischemia reduced injury in the nonreperfused myocardium by 50% at 4 days post-MI by reducing apoptosis and inflammatory cell infiltration. In a clinically relevant model of acute ischemia (30min)/reperfusion (24hr or 4 days) injury, we now demonstrate that ephrinA1-Fc reduces infarct size by 46% and completely preserves cardiac function (ejection fraction, fractional shortening, and chamber dimensions) in the short-term (24hrs post-MI) as well as long-term (4 days)...
2017: PloS One
https://www.readbyqxmd.com/read/29236132/brentuximab-vedotin-maintenance-following-chemotherapy-without-irradiation-for-primary-intracranial-embryonal-carcinoma-in-down-syndrome
#14
Mohammad H Abu Arja, Suzanne E Conley, Violeta Salceda, Fahd Al-Sufiani, Daniel R Boué, Jonathan L Finlay
BACKGROUND: Germ cell tumors (GCT) are the most common central nervous system (CNS) tumors in individuals with Down syndrome. Patients with Down syndrome treated with CNS irradiation are at increased risk of developing cerebrovascular complications such as moyamoya disease. Embryonal carcinoma components are recognized to be more resistant to conventional chemotherapy and radiotherapy and confer a very poor prognosis. CD30 is a member of the tumor necrosis factor-receptor superfamily...
December 13, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29235720/chimeric-mice-with-humanized-liver-as-a-model-for-testing-organophosphate-and-carbamate-pesticide-exposure
#15
Hiroshi Suemizu, Kenji Kawai, Norie Murayama, Masato Nakamura, Hiroshi Yamazaki
BACKGROUND: Diagnosis of acute intoxication with organophosphate (OP) or carbamate (CM) pesticides in humans is achieved by measuring plasma butyrylcholinesterase (BuChE) activity. However, BuChE activity is not an ideal biomarker in experimental animal models. The aim of this study was to establish an experimental mouse model for evaluating exposure to OP and CM pesticides by monitoring BuChE activity using chimeric mice in which the liver was reconstituted with human hepatocytes. RESULTS: A single oral administration of acephate (300 mg/kg), chlorpyrifos (10 mg/kg), fenobucarb (300 mg/kg) or molinate (250 mg/kg) in chimeric mice led to inhibition of >95%, >95%, 28%, and 60% of plasma BuChE activity after 7 h, 0...
December 13, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29233499/the-role-of-the-carboxyl-ester-lipase-cel-gene-in-pancreatic-disease
#16
REVIEW
Bente B Johansson, Karianne Fjeld, Khadija El Jellas, Anny Gravdal, Monica Dalva, Erling Tjora, Helge Ræder, Rohit N Kulkarni, Stefan Johansson, Pål R Njølstad, Anders Molven
The enzyme carboxyl ester lipase (CEL), also known as bile salt-dependent or -stimulated lipase (BSDL, BSSL), hydrolyzes dietary fat, cholesteryl esters and fat-soluble vitamins in the duodenum. CEL is mainly expressed in pancreatic acinar cells and lactating mammary glands. The human CEL gene resides on chromosome 9q34.3 and contains a variable number of tandem repeats (VNTR) region that encodes a mucin-like protein tail. Although the number of normal repeats does not appear to significantly influence the risk for pancreatic disease, single-base pair deletions in the first VNTR repeat cause a syndrome of endocrine and exocrine dysfunction denoted MODY8...
December 5, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29232504/a-genetic-toolbox-for-modulating-the-expression-of-heterologous-genes-in-the-cyanobacterium-synechocystis-sp-pcc-6803
#17
Bo Wang, Carrie Eckert, Pin-Ching Maness, Jianping Yu
Cyanobacteria, genetic models for photosynthesis research for decades, have recently become attractive hosts for producing renewable fuels and chemicals, owing to their genetic tractability, relatively fast growth, and their ability to utilize sunlight, fix carbon dioxide and, in some cases, fix nitrogen. Despite significant advances, there is still an urgent demand for synthetic biology tools in order to effectively manipulate genetic circuits in cyanobacteria. In this study, we have compared a total of 17 natural and chimeric promoters, focusing on expression of the ethylene-forming enzyme (EFE) in the cyanobacterium Synechocystis sp...
December 12, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/29231062/promising-immunotherapy-for-prostate-cancer
#18
John C Henegan, Guru Sonpavde
Sipuleucel-T is the only currently approved immunotherapy for the management of prostate cancer. However, other immunotherapy agents have recently shown activity in prostate cancer and are being developed alone or in combination with other agents. Areas covered: This article provides a review of positive or encouraging clinical trials of agents under development including vaccines, monoclonal antibodies, immune modulators, gene-mediated cytotoxic immunotherapy and chimeric antigen receptor-modified 'designer' T cells in patients with prostate cancer...
December 12, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29230672/the-role-of-b-cell-maturation-antigen-in-the-biology-and-management-of-and-as-a-potential-therapeutic-target-in-multiple-myeloma
#19
Eric Sanchez, Emily J Smith, Moryel A Yashar, Saurabh Patil, Mingjie Li, Autumn L Porter, Edward J Tanenbaum, Remy E Schlossberg, Camilia M Soof, Tara Hekmati, George Tang, Cathy S Wang, Haiming Chen, James R Berenson
B-cell maturation antigen (BCMA) was originally identified as a cell membrane receptor, expressed exclusively on late stage B-cells and plasma cells (PCs). Investigations of BCMA as a target for therapeutic intervention in multiple myeloma (MM) were initiated in 2007, using cSG1 as a naked antibody (Ab) as well as an Ab-drug conjugate (ADC) targeting BCMA, ultimately leading to ongoing clinical studies for previously treated MM patients. Since then, multiple companies have developed anti-BCMA-directed ADCs...
December 11, 2017: Targeted Oncology
https://www.readbyqxmd.com/read/29230151/integrating-a-19f-mri-tracer-agent-into-the-clinical-scale-manufacturing-of-a-t-cell-immunotherapy
#20
Charles F O'Hanlon, Tamara Fedczyna, Shannon Eaker, William D Shingleton, Brooke M Helfer
Leukocyte immunotherapies have made great progress in the treatment of cancer. Recent reports on the treatment of B-cell malignancies using Chimeric Antigen Receptor and affinity enhanced T-Cell Receptor therapies have demonstrated encouraging clinical results. As investigators begin to explore the treatment of solid tumors with these cells, the hurdle of evaluating T-cell homing to and persistence at the site of disease remain. Significant challenges regarding the GMP manufacture and administration of a therapeutic dose of millions to billions of transduced T-cells remain...
2017: Contrast Media & Molecular Imaging
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