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https://www.readbyqxmd.com/read/29750992/transcriptome-analysis-of-dorsal-root-ganglia-s-diabetic-neuropathy-reveals-mechanisms-involved-in-pain-and-regeneration
#1
Maria Carolina Pedro Athie, Andre Schwambach Vieira, Juliana Maia Teixeira, Gilson Gonçalves Dos Santos, Elayne Vieira Dias, Claudia Herrera Tambeli, Cesar Renato Sartori, Carlos A Parada
Peripheral diabetic neuropathy (DN) manifests in nearly 60% of diabetic patients, being pain its most debilitating symptom. Although electrophysiological and morphological aspects are well described, little is known about its development and progression, undermining effective therapies. Hyperglycemia and insulin signaling impairment are considered the triggering events of oxidative stress observed in the dying nerves, however there are still many gaps in the knowledge of intracellular plastic changes it generates...
May 8, 2018: Life Sciences
https://www.readbyqxmd.com/read/29715291/interference-with-dna-repair-after-ionizing-radiation-by-a-pyrrole-imidazole-polyamide
#2
Silvia Diaz-Perez, Nathanael Kane, Alexis A Kurmis, Fei Yang, Nicolas T Kummer, Peter B Dervan, Nicholas G Nickols
Pyrrole-imidazole (Py-Im) polyamides are synthetic non-genotoxic minor groove-binding small molecules. We hypothesized that Py-Im polyamides can modulate the cellular response to ionizing radiation. Pre-treatment of cells with a Py-Im polyamide prior to exposure to ionizing radiation resulted in a delay in resolution of phosphorylated γ-H2AX foci, increase in XRCC1 foci, and reduced cellular replication potential. RNA-sequencing of cell lines exposed to the polyamide showed induction of genes related to the ultraviolet radiation response...
2018: PloS One
https://www.readbyqxmd.com/read/29534332/modulation-of-inflammatory-arthritis-by-gut-microbiota-through-mucosal-inflammation-and-autoantibody-generation
#3
Widian K Jubair, Jason D Hendrickson, Erin L Severs, Hanna M Schulz, Sumitra Adhikari, Diana Ir, Jose Pagan, Robert Anthony, Charles E Robertson, Daniel N Frank, Nirmal K Banda, Kristine A Kuhn
OBJECTIVE: Observations of microbial dysbiosis in patients with RA have raised interest in studying microbial-mucosal interactions as a potential trigger of RA. Using the murine collagen-induced arthritis (CIA) model, we hypothesized that microbiota modulate immune responses leading to autoimmune arthritis. METHODS: CIA was induced by immunization of mice with type II collagen (CII) in adjuvant on days 0 and 21, with arthritis appearing at days 23-24. Intestinal microbiota were profiled by 16S rRNA sequencing every 7 days during the course of CIA, and intestinal mucosal changes evaluated on days 14 and 35...
March 13, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29502208/tumor-associated-myeloid-cells-promote-tumorigenesis-of-non-tumorigenic-human-and-murine-prostatic-epithelial-cell-lines
#4
Stephanie N Sass, Kimberley D Ramsey, Shawn M Egan, Jianmin Wang, Eduardo Cortes Gomez, Sandra O Gollnick
The etiology of prostate cancer is poorly understood, but it is a multi-step process that has been linked to environmental factors that induce inflammation within the gland. Glands of prostate cancer patients frequently contain multiple zones of disease at various stages of progression. The factors that drive disease progression from an indolent benign stage to aggressive disease are not well-defined. Prostate inflammation and carcinoma are associated with high levels of myeloid cell infiltration; these cells are linked to disease progression in other cancers, but their role in prostate cancer is unclear...
June 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29432791/functional-signalling-and-transcriptional-differences-of-three-distinct-type-i-ifns-in-a-perciform-fish-the-mandarin-fish-siniperca-chuatsi
#5
Zubair Ahmed Laghari, Shan Nan Chen, Li Li, Bei Huang, Zhen Gan, Ying Zhou, Hui Jun Huo, Jing Hou, Pin Nie
Teleost fish are unique in having type I and type II interferons (IFNs) only, and the type I IFNs are classified into Group one and Group two based on the presence of two or four cysteines respectively, and are further classified into seven subgroups. In the present study, three distinct type I IFNs, IFNc, IFNd and IFNh, have been identified in the genome sequences of a perciform fish, the mandarin fish Siniperca chuatsi. These IFNs are induced following the stimulation of Polyinosinic polycytidylic acid (poly(I:C)) and Resiquimod (R848) either in vivo or in vitro...
July 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29392316/mesenchymal-stem-cell-derived-small-extracellular-vesicles-promote-neuroprotection-in-rodent-models-of-glaucoma
#6
Ben Mead, Juan Amaral, Stanislav Tomarev
Purpose: To investigate the benefit of bone marrow mesenchymal stem cell (BMSC)-derived small extracellular vesicles (sEV) as an intravitreal (ivit) therapy in two rat models of glaucoma and to determine and identify candidate miRNA involved in the mechanism. Methods: sEV were isolated from human BMSC and fibroblasts and ivit injected into adult rats after induction of elevated IOP. IOP was elevated using either intracameral injection of microbeads or laser photocoagulation of circumferential limbal vessels and the trabecular meshwork...
February 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29366893/molecular-characterization-of-cry1d-133-toxin-from-bacillus-thuringiensis-strain-hd133-and-its-toxicity-against-spodoptera-littoralis
#7
Dalel BenFarhat-Touzri, Fatma Driss, Sonia Jemli, Slim Tounsi
Bacillus thuringiensis subsp. aizawai strain HD133, known by its effectiveness against Spodoptera species, produces bipyramidal crystals encompassing the insecticidal proteins Cry1Ab, Cry1Ca and Cry1D-133 in the proportions 60:37:3, respectively. In this study, we dealt with the relevance of the low rate of Cry1D-133. The cry1D-133 gene from HD133 was cloned and sequenced. Both nucleotide and amino acid sequence similarity analyses with the cry1D genes available in the GenBank database revealed that cry1D-133 is a new variant of cry1Da-type genes with 99% identity with cry1Da1...
June 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29328656/design-and-synthesis-of-novel-reactive-oxygen-species-inducers-for-the-treatment-of-pancreatic-ductal-adenocarcinoma
#8
Yuting Kuang, Mario Sechi, Salvatore Nurra, Mats Ljungman, Nouri Neamati
Altering redox homeostasis provides distinctive therapeutic opportunities for the treatment of pancreatic cancer. Quinazolinediones (QDs) are novel redox modulators that we previously showed to induce potent growth inhibition in pancreatic ductal adenocarcinoma (PDAC) cell lines. Our lead optimization campaign yielded QD325 as the most potent redox modulator candidate inducing substantial reactive oxygen species (ROS) in PDAC cells. Nascent RNA sequencing following treatments with the QD compounds revealed induction of stress responses in nucleus, endoplasmic reticulum, and mitochondria of pancreatic cancer cells...
February 22, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29138302/disruption-of-the-opal-stop-codon-attenuates-chikungunya-virus-induced-arthritis-and-pathology
#9
Jennifer E Jones, Kristin M Long, Alan C Whitmore, Wes Sanders, Lance R Thurlow, Julia A Brown, Clayton R Morrison, Heather Vincent, Kayla M Peck, Christian Browning, Nathaniel Moorman, Jean K Lim, Mark T Heise
Chikungunya virus (CHIKV) is a mosquito-borne alphavirus responsible for several significant outbreaks of debilitating acute and chronic arthritis and arthralgia over the past decade. These include a recent outbreak in the Caribbean islands and the Americas that caused more than 1 million cases of viral arthralgia. Despite the major impact of CHIKV on global health, viral determinants that promote CHIKV-induced disease are incompletely understood. Most CHIKV strains contain a conserved opal stop codon at the end of the viral nsP3 gene...
November 14, 2017: MBio
https://www.readbyqxmd.com/read/28926599/experimental-colitis-delays-and-reduces-the-severity-of-collagen-induced-arthritis-in-mice
#10
Julie Hablot, Laurent Peyrin-Biroulet, Tunay Kokten, Reine El Omar, Patrick Netter, Claire Bastien, Jean-Yves Jouzeau, Harry Sokol, David Moulin
Amongst extraintestinal manifestations (EIM) occurring in IBD patients, rheumatologic manifestations are the most frequent. Understanding the relationships between arthritis and colitis is a prerequisite to improving the management of these patients. Microbiota of patients with IBD or rheumatologic diseases, like spondyloarthritis (SpA) is modified compared to healthy individual. Thus, we have evaluated the impact of colitis in the development of arthritis in mice and we have analyzed microbiota changes. Collagen-induced arthritis (CIA) was induced at day 0 in DBA1 mice exposed or not to Dextran Sodium Sulfate (DSS) to induce colitis between day 14 and day 21...
2017: PloS One
https://www.readbyqxmd.com/read/28756174/the-potent-anti-cancer-activity-of-dioclea-lasiocarpa-lectin
#11
Ana C S Gondim, Isolda Romero-Canelón, Eduardo H S Sousa, Claudia A Blindauer, Jennifer S Butler, María J Romero, Carlos Sanchez-Cano, Bruno L Sousa, Renata P Chaves, Celso S Nagano, Benildo S Cavada, Peter J Sadler
The lectin DLasiL was isolated from seeds of the Dioclea lasiocarpa collected from the northeast coast of Brazil and characterized for the first time by mass spectrometry, DNA sequencing, inductively coupled plasma-mass spectrometry, electron paramagnetic resonance, and fluorescence spectroscopy. The structure of DLasiL lectin obtained by homology modelling suggested strong conservation of the dinuclear Ca/Mn and sugar-binding sites, and dependence of the solvent accessibility of tryptophan-88 on the oligomerisation state of the protein...
October 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28751801/drought-tolerant-brassica-rapa-shows-rapid-expression-of-gene-networks-for-general-stress-responses-and-programmed-cell-death-under-simulated-drought-stress
#12
Yi Ming Guo, Birgit Samans, Sheng Chen, Kidist B Kibret, Sarah Hatzig, Neil C Turner, Matthew N Nelson, Wallace A Cowling, Rod J Snowdon
Production of oilseed rape/canola ( Brassica napus ) is increasingly threatened by dry conditions while the demand for vegetable oil is increasing. Brassica rapa is a genetically diverse ancestor of B. napus , and is readily crossed with B. napus . Recently, we reported promising levels of drought tolerance in a wild type of B. rapa which could be a source of drought tolerance for B. napus . We analysed global gene expression by messenger RNA sequencing in seedlings of the drought-tolerant and a drought-sensitive genotype of B...
2017: Plant Molecular Biology Reporter
https://www.readbyqxmd.com/read/28571721/transcriptome-analysis-revealed-impaired-camp-responsiveness-in-phf21a-deficient-human-cells
#13
Robert S Porter, Yumie Murata-Nakamura, Hajime Nagasu, Hyung-Goo Kim, Shigeki Iwase
Potocki-Shaffer Syndrome is a rare neurodevelopmental syndrome associated with microdeletion of a region of Chromosome 11p11.2. Genetic evidence has implicated haploinsufficiency of PHF21A, a gene that encodes a histone-binding protein, as the likely cause of intellectual disability and craniofacial abnormalities in Potocki-Shaffer Syndrome. However, the molecular consequences of reduced PHF21A expression remain elusive. In this study, we analyzed by RNA-Sequencing (RNA-Seq) two patient-derived cell lines with heterozygous loss of PHF21A compared to unaffected individuals and identified 1,885 genes that were commonly misregulated...
February 1, 2018: Neuroscience
https://www.readbyqxmd.com/read/28545349/exploring-different-mutations-at-a-single-amino-acid-position-of-cucumber-green-mottle-mosaic-virus-replicase-to-attain-stable-symptom-attenuation
#14
Liming Liu, Bin Peng, Zhenwei Zhang, Yang Wu, Manuel Miras, Miguel A Aranda, Qinsheng Gu
Cucumber green mottle mosaic virus (CGMMV) is a member of the genus Tobamovirus (family Virgaviridae) that causes serious economic losses in cucurbit crops. A possibility for CGMMV control is the use of cross-protection, for which stable attenuated isolates are required. In this study, an infectious clone was constructed for the hn isolate of CGMMV. Unexpectedly, this clone carried a nonconserved mutation involving a single nucleotide change resulting in the replacement of Arg by Cys at residue 284 of the replicase protein; this mutation correlated with delayed symptom induction and RNA accumulation, as shown in time-course experiments...
September 2017: Phytopathology
https://www.readbyqxmd.com/read/28472509/multicenter-phase-ii-study-of-temozolomide-and-myeloablative-chemotherapy-with-autologous-stem-cell-transplant-for-newly-diagnosed-anaplastic-oligodendroglioma
#15
Alissa A Thomas, Lauren E Abrey, Robert Terziev, Jeffrey Raizer, Nina L Martinez, Peter Forsyth, Nina Paleologos, Matthew Matasar, Craig S Sauter, Craig Moskowitz, Stephen D Nimer, Lisa M DeAngelis, Thomas Kaley, Sean Grimm, David N Louis, J Gregory Cairncross, Katherine S Panageas, Samuel Briggs, Geraldine Faivre, Nimish A Mohile, Jayesh Mehta, Philip Jonsson, Debyani Chakravarty, Jianjiong Gao, Nikolaus Schultz, Cameron W Brennan, Jason T Huse, Antonio Omuro
Background: Anaplastic oligodendroglioma (AO) and anaplastic oligoastrocytoma (AOA) are chemotherapy-sensitive tumors with prolonged survival after radiochemotherapy. We report a prospective trial using induction temozolomide (TMZ) followed by myeloablative high-dose chemotherapy (HDC) with autologous stem-cell transplant (ASCT) as a potential strategy to defer radiotherapy. Methods: Patients with AO/AOA received 6 cycles of TMZ (200 mg/m2 × 5/28 day). Responding patients were eligible for HDC (thiotepa 250 mg/m2/day × 3 days, then busulfan 3...
October 1, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28422925/dynamics-of-b-cell-recovery-in-kidney-bone-marrow-transplant-recipients
#16
Baoshan Gao, Yiming Gu, Chunshu Rong, Carolina Moore, Fabrice Porcheray, Waichi Wong, Frederic Preffer, Susan L Saidman, Yaowen Fu, Benedict Cosimi, David H Sachs, Tatsuo Kawai, Megan Sykes, Emmanuel Zorn
BACKGROUND: Previous studies identified B cell gene signatures and predominance of specific B cell subsets as a marker of operational tolerance after kidney transplantation. These findings suggested a role for B cells in the establishment or maintenance of tolerance. Here we analyzed B cell recovery in 4 subjects, 3 of whom achieved tolerance after combined kidney/bone marrow transplantation. METHODS: Peripheral B cell subsets were examined longitudinally by flow cytometry...
November 2017: Transplantation
https://www.readbyqxmd.com/read/28281215/neoadjuvant-treatment-for-locally-advanced-rectal-cancer-new-concepts-in-clinical-trial-design
#17
REVIEW
Nitesh Rana, A Bapsi Chakravarthy, Lisa A Kachnic
Treatment for locally advanced rectal cancer has evolved from surgery alone to surgery plus adjuvant therapy. Preoperative 5-fluorouracil- or capecitabine-based chemoradiation with standard fractionated radiation, surgery utilizing total mesorectal excision, and further chemotherapy has become the standard of care in the USA. Preoperative adjuvant chemoradiation treatment sequencing has allowed for decreased toxicity, more sphincter-sparing surgery, and improved local control rates as compared to delivering the chemoradiation postoperatively...
February 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28242623/type-i-interferon-enhanced-il-10-expression-in-human-cd4-t-cells-is-regulated-by-stat3-stat2-and-batf-transcription-factors
#18
Umeshree Govender, Béatrice Corre, Yasmine Bourdache, Sandra Pellegrini, Frédérique Michel
Type I IFN can exert pro- and anti-inflammatory activities in the immune system. Here, we have investigated the mechanism by which IFN-α enhances early expression of the anti-inflammatory cytokine IL-10 in human CD45RA+ CD4+ T cells. With the use of transcriptomic and biochemical approaches, we found distinct and combined contributions of the IFN and the TCR signaling pathways to the induction of STAT1/2/3 and the basic leucine zipper activating transcription factor-like ( BATF ) family members. Moreover, IFN-induced STAT3 phosphorylation was prolonged by the TCR response, whereas IFN-induced STAT2 phosphorylation was of long duration...
May 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28239415/coupling-gene-regulatory-patterns-to-bioprocess-conditions-to-optimize-synthetic-metabolic-modules-for-improved-sesquiterpene-production-in-yeast
#19
Bingyin Peng, Manuel R Plan, Alexander Carpenter, Lars K Nielsen, Claudia E Vickers
BACKGROUND: Assembly of heterologous metabolic pathways is commonly required to generate microbial cell factories for industrial production of both commodity chemicals (including biofuels) and high-value chemicals. Promoter-mediated transcriptional regulation coordinates the expression of the individual components of these heterologous pathways. Expression patterns vary during culture as conditions change, and this can influence yeast physiology and productivity in both positive and negative ways...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28116088/radiotherapy-and-mva-muc1-il-2-vaccine-act-synergistically-for-inducing-specific-immunity-to-muc-1-tumor-antigen
#20
Gilda G Hillman, Lyndsey A Reich, Shoshana E Rothstein, Lisa M Abernathy, Matthew D Fountain, Kali Hankerd, Christopher K Yunker, Joseph T Rakowski, Eric Quemeneur, Philippe Slos
BACKGROUND: We previously demonstrated that tumor irradiation potentiates cancer vaccines using genetic modification of tumor cells in murine tumor models. To investigate whether tumor irradiation augments the immune response to MUC1 tumor antigen, we have tested the efficacy of tumor irradiation combined with an MVA-MUC1-IL2 cancer vaccine (Transgene TG4010) for murine renal adenocarcinoma (Renca) cells transfected with MUC1. METHODS: Established subcutaneous Renca-MUC1 tumors were treated with 8 Gy radiation on day 11 and peritumoral injections of MVA-MUC1-IL2 vector on day 12 and 17, or using a reverse sequence of vaccine followed by radiation...
2017: Journal for Immunotherapy of Cancer
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