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https://www.readbyqxmd.com/read/28428548/antiviral-activities-of-schizonepeta-tenuifolia-briq-against-enterovirus-71-in-vitro-and-in-vivo
#1
Sin-Guang Chen, Mei-Ling Cheng, Kuan-Hsing Chen, Jim-Tong Horng, Ching-Chuan Liu, Shih-Min Wang, Hiroaki Sakurai, Yann-Lii Leu, Shulhn-Der Wang, Hung-Yao Ho
No effective drug is currently available for treatment of enterovirus 71 (EV71) infection. Schizonepeta tenuifolia Briq. (ST) has been used as a herbal constituent of traditional Chinese medicine. We studied whether the aqueous extract of Schizonepeta tenuifolia Briq (STE) has antiviral activity. STE inhibited replication of EV71, as evident by its ability to diminish plaque formation and cytopathic effect induced by EV71, and to inhibit the synthesis of viral RNA and protein. Moreover, daily single-dose STE treatment significantly improved the survival of EV71-infected mice, and ameliorated the symptoms...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28409522/serological-biomarkers-as-risk-factors-of-sle-associated-pulmonary-arterial-hypertension-a-systematic-review-and-meta-analysis
#2
J Wang, J Qian, Y Wang, J Zhao, Q Wang, Z Tian, M Li, X Zeng
Objective This article aims to determine the serological biomarkers which can be considered as risk factors of systemic lupus erythematosus (SLE)-associated pulmonary arterial hypertension by a systematic review and meta-analysis. Methods This study was conducted in accordance with the PRISMA statement. The search database included MEDLINE, EMBASE, Cochrane Library and Scopus. The Newcastle-Ottawa scale was used for the quality assessment. The odds ratio was the primary measure of effect of the risk factors...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28394238/anti-ribosomal-p-antibody-a-multicenter-study-in-childhood-onset-systemic-lupus-erythematosus-patients
#3
C C M Valões, B C Molinari, A C G Pitta, N W S Gormezano, S C L Farhat, K Kozu, A M E Sallum, S Appenzeller, A P Sakamoto, M T Terreri, R M R Pereira, C S Magalhães, J C O A Ferreira, C M Barbosa, F H Gomes, E Bonfá, C A Silva
Objectives Anti-ribosomal P protein (anti-P) autoantibodies are highly specific for systemic lupus erythematosus (SLE). However, the evaluation of this autoantibody in childhood-onset SLE (cSLE) populations has been limited to a few small series, hampering the interpretation of the clinical and laboratorial associations. Therefore, the objective of this multicenter cohort study was to evaluate demographic, clinical/laboratorial features, and disease damage score in cSLE patients with and without the presence of anti-P antibody...
April 2017: Lupus
https://www.readbyqxmd.com/read/28389661/crispr-cas9-mediated-pd-1-disruption-enhances-anti-tumor-efficacy-of-human-chimeric-antigen-receptor-t-cells
#4
Levi J Rupp, Kathrin Schumann, Kole T Roybal, Rachel E Gate, Chun J Ye, Wendell A Lim, Alexander Marson
Immunotherapies with chimeric antigen receptor (CAR) T cells and checkpoint inhibitors (including antibodies that antagonize programmed cell death protein 1 [PD-1]) have both opened new avenues for cancer treatment, but the clinical potential of combined disruption of inhibitory checkpoints and CAR T cell therapy remains incompletely explored. Here we show that programmed death ligand 1 (PD-L1) expression on tumor cells can render human CAR T cells (anti-CD19 4-1BBζ) hypo-functional, resulting in impaired tumor clearance in a sub-cutaneous xenograft model...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28386505/the-child-as-a-surrogate-for-diagnosis-of-lupus-in-the-mother
#5
Olufemi O Adelowo, Kenneth A Ohagwu, Ejiehi E Aigbokhan, Richard O Akintayo
Introduction. Neonatal lupus erythematosus (NLE) is an acquired disease of the newborn caused by transplacental transfer of maternal anti-Ro/SSA, anti-La/SSB, and infrequently anti-U1 RNP antibodies. Methodology. This is a case report of a male infant delivered via Caesarean section at 36-week gestation following detection of fetal bradycardia during routine antenatal clinic visit. Results. The mother was seropositive for antinuclear antibody (ANA) and anti-Ro/SSA and had elevated erythrocyte sedimentation rate...
2017: Case Reports in Rheumatology
https://www.readbyqxmd.com/read/28379520/sumo-conjugation-to-spliceosomal-proteins-is-required-for-efficient-pre-mrna-splicing
#6
Berta Pozzi, Laureano Bragado, Cindy L Will, Pablo Mammi, Guillermo Risso, Henning Urlaub, Reinhard Lührmann, Anabella Srebrow
Pre-mRNA splicing is catalyzed by the spliceosome, a multi-megadalton ribonucleoprotein machine. Previous work from our laboratory revealed the splicing factor SRSF1 as a regulator of the SUMO pathway, leading us to explore a connection between this pathway and the splicing machinery. We show here that addition of a recombinant SUMO-protease decreases the efficiency of pre-mRNA splicing in vitro. By mass spectrometry analysis of anti-SUMO immunoprecipitated proteins obtained from purified splicing complexes formed along the splicing reaction, we identified spliceosome-associated SUMO substrates...
March 30, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28379478/progression-and-mortality-of-interstitial-lung-disease-in-mixed-connective-tissue-disease-a-long-term-observational-nationwide-cohort-study
#7
Silje Reiseter, Ragnar Gunnarsson, Trond Mogens Aaløkken, May Brit Lund, Georg Mynarek, Jukka Corander, Joanna Haydon, Øyvind Molberg
Objectives.: To assess the prevalence, extent, progression, functional impact and mortality of interstitial lung disease (ILD) in a nationwide unselected MCTD cohort. Methods.: The study cohort included patients with high-resolution CT lung scans available at baseline (n = 135) and at follow-up (n = 119). The extent of disease was expressed as percentage of total lung volume (TLV). Results.: ILD was present in 41% of MCTD patients at follow-up...
March 29, 2017: Rheumatology
https://www.readbyqxmd.com/read/28377100/the-mek-inhibitor-ci-1040-displays-a-broad-anti-influenza-virus-activity-in%C3%A2-vitro-and-provides-a-prolonged-treatment-window-compared-to-standard-of-care-in%C3%A2-vivo
#8
Emanuel Haasbach, Christin Müller, Christina Ehrhardt, Andre Schreiber, Stephan Pleschka, Stephan Ludwig, Oliver Planz
Influenza viruses (IV) continue to pose an imminent threat to human welfare. Yearly re-occurring seasonal epidemic outbreaks and pandemics with high mortality can occur. Besides vaccination against a limited number of viral strains only a few antiviral drugs are available, which are losing their effectiveness as more and more IV strains become resistant. Thus, new antiviral approaches that omit IV resistance are urgently needed. Here, the dependency on the cellular Raf/MEK/ERK signaling pathway for IV replication opens a new perspective...
June 2017: Antiviral Research
https://www.readbyqxmd.com/read/28374248/development-of-recombinant-measles-virus-based-vaccines
#9
Michael D Mühlebach, Stefan Hutzler
This chapter describes the development of recombinant measles virus (MV)-based vaccines starting from plasmid DNA. Live-attenuated measles vaccines are very efficient and safe. Since the availability of a reverse genetic system to manipulate MV genomes and to generate respective recombinant viruses, a considerable number of recombinant viruses has been generated that present antigens of foreign pathogens during MV replication. Thereby, robust humoral and cellular immune responses can be induced, which have shown protective capacity in a substantial number of experiments...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28331370/can-the-hiv-1-splicing-machinery-be-targeted-for-drug-discovery
#10
REVIEW
Zodwa Dlamini, Rodney Hull
HIV-1 is able to express multiple protein types and isoforms from a single 9 kb mRNA transcript. These proteins are also expressed at particular stages of viral development, and this is achieved through the control of alternative splicing and the export of these transcripts from the nucleus. The nuclear export is controlled by the HIV protein Rev being required to transport incompletely spliced and partially spliced mRNA from the nucleus where they are normally retained. This implies a close relationship between the control of alternate splicing and the nuclear export of mRNA in the control of HIV-1 viral proliferation...
2017: HIV/AIDS: Research and Palliative Care
https://www.readbyqxmd.com/read/28267329/boronic-acid-modifications-enhance-the-anti-influenza-a-virus-activities-of-novel-quindoline-derivatives
#11
Wei Wang, Ruijuan Yin, Meng Zhang, Rilei Yu, Cui Hao, Lijuan Zhang, Tao Jiang
The unique glycan-binding ability of chemically synthesized boronic acid derivatives makes them emerging candidates for developing anti-influenza A virus (IAV) drugs. Herein we report the synthesis and the anti-IAV activities of three series of novel boronic acid-modified quindoline derivatives both in vitro and in vivo. Boronic acid-modified compounds 6a and 7a effectively prevented the entry of virus RNP into the nucleus, reduced virus titers in IAV infected cells, and also inhibited the activity of viral neuraminidase...
April 13, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28248800/mixed-connective-tissue-disease-and-epitope-spreading-an-historical-cohort-study
#12
Laura Escolà-Vergé, Iago Pinal-Fernandez, Andreu Fernandez-Codina, Eduardo L Callejas-Moraga, Juan Espinosa, Ana Marin, Moises Labrador-Horrillo, Albert Selva-O'Callaghan
OBJECTIVES: Mixed connective tissue disease (MCTD) is characterized by the presence of anti-U1-snRNP autoantibodies and a variable set of associated clinical features. Some MCTD patients test positive over time to autoantibodies against Sm, proteins spatially related with U1-snRNP. This situation has been attributed to expanding of the autoimmune response by a phenomenon known as epitope spreading. Our aim was to study the frequency of this phenomenon in MCTD patients and the specific clinical features of those with epitope spreading...
April 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28235408/the-chinese-prescription-lianhuaqingwen-capsule-exerts-anti-influenza-activity-through-the-inhibition-of-viral-propagation-and-impacts-immune-function
#13
Yuewen Ding, Lijuan Zeng, Runfeng Li, Qiaoyan Chen, Beixian Zhou, Qiaolian Chen, Pui Leng Cheng, Wang Yutao, Jingping Zheng, Zifeng Yang, Fengxue Zhang
BACKGROUND: Lianhuaqingwen Capsule (LH-C) is a traditional Chinese medicine (TCM) formula used to treat respiratory tract infectious diseases in Chinese. The aim of this study was to determine the antiviral activity of LH-C and its immunomodulatory effects on viral infection. METHOD: The in vitro cytotoxicity and antiviral activity of LH-C was determined by MTT and Plaque reduction assays. Time course study under single-cycle virus growth conditions were used to determine which stage of viral replication was blocked...
February 24, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28228619/a-case-of-anti-3-hydroxy-3-methylglutaryl-coenzyme-a-reductase-antibody-positive-paraneoplastic-necrotizing-myopathy-associated-with-advanced-gastric-cancer-that-responded-to-intravenous-immunoglobulin-therapy
#14
Tomohisa Yamaguchi, Akiko Matsunaga, Masamichi Ikawa, Norimichi Shirafuji, Ichizo Nishino, Tadanori Hamano
A 49-year-old woman presented with progressive muscle weakness of the limbs and dysphagia. Her past and family medical history were unremarkable and she did not take statins or any other medications. Laboratory tests showed that serum levels of creatine kinase were elevated (13,565 IU/l) and anti-3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR) antibodies were detected in the serum. Other autoantibodies to the nuclear (ANA), RNP, aminoacyl-tRNA synthetases (ARS), and signal recognition particle (SRP) were negative...
March 28, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28204891/low-titer-isolated-anti-ro-ssa-60-kd-antibodies-is-correlated-with-positive-pregnancy-outcomes-in-women-at-risk-of-congenital-heart-block
#15
Marta Tonello, Ariela Hoxha, Elena Mattia, Alessandra Zambon, Silvia Visentin, Alessia Cerutti, Anna Ghirardello, Ornella Milanesi, Amelia Ruffatti
Congenital heart block (CHB) is an autoantibody mediated disorder presumably caused by placental transmission of maternal autoantibodies to Ro/SSA 52 kd, p200, Ro/SSA 60 kd, La/SSB ribonucleoproteins. This study investigated the clinical significance of isolated anti-Ro/SSA 52 kd, anti-p200, anti-Ro/SSA 60 kd, and anti-La/SSB antibodies in positive pregnant patients. One hundred sixty-three pregnant women positive to anti-Ro/SSA 52 kd and/or anti-Ro/SSA 60 kd and/or anti-La/SSB antibodies were prospectively enrolled in the study...
February 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28198434/jerantinine-a-induces-tumor-specific-cell-death-through-modulation-of-splicing-factor-3b-subunit-1-sf3b1
#16
Felicia Fei-Lei Chung, Perry Faith Tze Ming Tan, Vijay Joseph Raja, Boon-Shing Tan, Kuan-Hon Lim, Toh-Seok Kam, Ling-Wei Hii, Si Hoey Tan, Sze-Jia See, Yuen-Fen Tan, Li-Zhe Wong, Wai Keat Yam, Chun Wai Mai, Tracey D Bradshaw, Chee-Onn Leong
Precursor mRNA (pre-mRNA) splicing is catalyzed by a large ribonucleoprotein complex known as the spliceosome. Numerous studies have indicated that aberrant splicing patterns or mutations in spliceosome components, including the splicing factor 3b subunit 1 (SF3B1), are associated with hallmark cancer phenotypes. This has led to the identification and development of small molecules with spliceosome-modulating activity as potential anticancer agents. Jerantinine A (JA) is a novel indole alkaloid which displays potent anti-proliferative activities against human cancer cell lines by inhibiting tubulin polymerization and inducing G2/M cell cycle arrest...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28154333/structural-and-biochemical-analyses-on-the-rna-dependent-rna-polymerase-of-influenza-virus-for-development-of-novel-anti-influenza-agents
#17
Dai Hatakeyama
 The PA, PB1, and PB2 subunits, components of the RNA-dependent RNA polymerase of influenza A virus, and the nucleoprotein (NP) interact with the genomic RNA of influenza viruses and form ribonucleoproteins. Especially, the PB2 subunit binds to the host RNA cap [7-methylguanosine triphosphate (m(7)GTP)] and supports the endonuclease activity of PA to "snatch" the cap from host pre-mRNAs. In this study, we describe a novel Val/Arg/Gly (VRG) site in the PB2 cap-binding domain, which is necessary for interaction with acetyl-CoA found in eukaryotic histone acetyltransferases (HATs)...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28134563/zenit-ra-evaluation-a-solid-phase-chemiluminescence-immunoassay-for-detection-of-anti-cellular-antibodies
#18
Enrique Melguizo Madrid, Concepción González-Rodríguez, María de Gracia Ávila-García, Teresa Arrobas-Velilla, Patricia Fernández-Riejos
AIM: The objective was to compare Zenit RA chemiluminescent immunoassay (CLIA) from Menarini Diagnostics and ELISA from INOVA Diagnostics for the presence of specific anti-Ro/SS-A, anti-La/SS-B, anti-U1snRNP, anti-Sm, anti-Scl-70, anti-Jo-1 antibodies. Results/methodology: We studied 501 samples (178 connective autoimmune disease, 150 other autoimmune or inflammatory disease and 173 other disease or healthy). All samples were analyzed using CLIA and ELISA. The Kappa agreement was excellent for anti-SSA/Ro (0...
March 2017: Bioanalysis
https://www.readbyqxmd.com/read/28123557/comparative-proteomic-analysis-of-paclitaxel-resistance-related-proteins-in-human-breast-cancer-cell-lines
#19
Hiroya Fujioka, Akiko Sakai, Satoru Tanaka, Kosei Kimura, Akiko Miyamoto, Mitsuhiko Iwamoto, Kazuhisa Uchiyama
Paclitaxel is widely used to treat various cancers; however, resistance to this drug is a major obstacle to breast cancer chemotherapy. To identify the proteins involved in paclitaxel resistance, the present study compared the proteomes of MCF-7 human breast cancer cells and its paclitaxel-resistant subclone MCF-7/PTX. Using two-dimensional gel electrophoresis and matrix-assisted laser desorption/ionization time of flight mass spectrometry, 11 upregulated and 12 downregulated proteins were identified in MCF-7/PTX cells compared with the parental cell line...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28119097/aurantiamide-acetate-from-baphicacanthus-cusia-root-exhibits-anti-inflammatory-and-anti-viral-effects-via-inhibition-of-the-nf-%C3%AE%C2%BAb-signaling-pathway-in-influenza-a-virus-infected-cells
#20
Beixian Zhou, Zifeng Yang, Qitong Feng, Xiaoli Liang, Jing Li, Mark Zanin, Zhihong Jiang, Nanshan Zhong
ETHNOPHARMACOLOGICAL RELEVANCE: Baphicacanthus cusia root also names "Nan Ban Lan Gen" has been traditionally used to prevent and treat influenza A virus infections. Here, we identified a peptide derivative, aurantiamide acetate (compound E17), as an active compound in extracts of B. cusia root. Although studies have shown that aurantiamide acetate possesses antioxidant and anti-inflammatory properties, the effects and mechanism by which it functions as an anti-viral or as an anti-inflammatory during influenza virus infection are poorly defined...
January 21, 2017: Journal of Ethnopharmacology
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