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https://www.readbyqxmd.com/read/28109960/rna-nanoparticle-based-targeted-therapy-for-glioblastoma-through-inhibition-of-oncogenic-mir-21
#1
Tae Jin Lee, Ji Young Yoo, Dan Shu, Hui Li, Jianying Zhang, Jun-Ge Yu, Alena Cristina Jaime-Ramirez, Mario Acunzo, Giulia Romano, Ri Cui, Hui-Lung Sun, Zhenghua Luo, Matthew Old, Balveen Kaur, Peixuan Guo, Carlo M Croce
Targeted inhibition of oncogenic miRNA-21 has been proposed to treat glioblastoma by rescuing tumor suppressors, PTEN and PDCD4. However, systemic delivery of anti-miR-21 sequences requires a robust and efficient delivery platform to successfully inhibit this druggable target. Three-way-junction (3WJ)-based RNA nanoparticles (RNP), artificially derived from pRNA of bacteriophage phi29 DNA packaging motor, was recently shown to target glioblastoma. Here, we report that multi-valent folate (FA)-conjugated 3WJ RNP constructed to harbor anti-miR-21 LNA sequences (FA-3WJ-LNA-miR21) specifically targeted and delivered anti-miR-21 LNA and knocked down miR-21 expression in glioblastoma cells in vitro and in vivo with favorable biodistribution...
January 18, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28081470/inhibition-viral-rnp-and-anti-inflammatory-activity-of-coumarins-against-influenza-virus
#2
YuTao Wang, Wen Yan, QiaoLian Chen, WanYi Huang, Zifeng Yang, Xiong Li, XinHua Wang
Influenza viruses pose a severe threat to human health and a significant increase in antiviral drug-resistant among influenza viruses worldwide has been observed. Therefore, there is an urgent need to develop the new antiviral drugs, specifically from the natural products. In this study, the anti-viral and anti-inflammatory activities of coumarins against influenza A virus in vitro were investigated. One of the derivatives eleutheroside B1 showed a wide spectrum of anti- human influenza virus effect with the IC50 value of 64-125μg/ml in vitro, but it showed no effects against avian influenza virus...
January 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28077839/atypical-trigeminal-neuralgia-a-rare-neurological-manifestation-of-systemic-lupus-erythematosus
#3
Viki Kumar, Jaspinder Kaur, Pallavi Pothuri, Sahiba Bandagi
BACKGROUND Systemic lupus erythematosus (SLE) is a multisystem autoimmune disorder of unknown etiology which can present at any age with symptoms of mucocutaneous, musculoskeletal, renal, central nervous system, and nonspecific clinical pictures making the disease a "master of mimicry". CASE REPORT A 53-year-old female, who was recently diagnosed with SLE, presented with right-sided sharp and electric shock-like facial pain starting at the side of her right nostril and traveling down the naso-labial fold and then back to the angle of the jaw, mostly in the region of V2-V3 distribution with no radiation beyond trigeminal distribution...
January 12, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28051234/neonatal-lupus-erythematosus-with-congenital-heart-block-in-twins
#4
Lamia Gargouri, Faiza Safi, Bayen Maalej, Souad Mallek, Fatma Turki, Imen Majdoub, Malek Akrout, Dorra Abid, Samir Kamoun, Abdelmajid Mahfoudh
Background - Neonatal lupus erythematosus is an uncommon acquired autoimmune disease caused by transplacental passage of maternal antibodies SSA/Ro, SSB/La or U1 ribonucleoproteins. The most common clinical manifestations are skin rash, cardiac lesions, thrombocytopenia, anemia and hepatosplenomegaly. Complete congenital heart block is usually irreversible needing a pacemaker implantation in two-thirds of cases. Cases report - We report neonatal lupus erythematosus with complete congenital heart block in twins...
July 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28035066/estradiol-shows-anti-skin-cancer-activities-through-decreasing-mdm2-expression
#5
Li Li, Jianguo Feng, Ying Chen, Shun Li, Mengting Ou, Weichao Sun, Liling Tang
Estradiol plays important roles in many biological responses inducing tumor genesis and cancer treatment. However, the effects of estradiol on tumors were inconsistent among a lot of researches and the mechanism is not fully understood. Our previous study indicated that splicing factor hnRNPA1 could bind to the human homologue of mouse double minute (MDM2), an oncogene which has been observed to be over-expressed in numerous types of cancers. In this research, we investigated whether and how estradiol correlate to cancer cell behaviors through heterogeneous nuclear ribonucleoprotein (hnRNPA1) and MDM2...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/27988434/anti-ro-ssa-and-anti-la-ssb-antibodies-association-with-mild-lupus-manifestations-in-645-childhood-onset-systemic-lupus-erythematosus
#6
REVIEW
Glaucia V Novak, Mariana Marques, Verena Balbi, Natali W S Gormezano, Kátia Kozu, Ana P Sakamoto, Rosa M R Pereira, Maria T Terreri, Claudia S Magalhães, Andressa Guariento, Adriana M E Sallum, Roberto Marini, Virginia Paes Leme Ferriani, Cássia Maria Barbosa, Tânia Caroline Monteiro de Castro, Valéria C Ramos, Eloisa Bonfá, Clovis A Silva
BACKGROUND: To our knowledge there are no studies assessing anti-Ro/SSA and anti-La/SSB autoantibodies in a large population of childhood-systemic lupus erythematosus(cSLE) patients. METHODS: This was a retrospective multicenter cohort study performed in 10 Pediatric Rheumatology services, São Paulo state, Brazil. Anti-Ro/SSA and anti-La/SSB antibodies were measured by enzyme linked immunosorbent assay(ELISA) in 645 cSLE patients. RESULTS: Anti-Ro/SSA and anti-La/SSB antibodies were evidenced in 209/645(32%) and 102/645(16%) of cSLE patients, respectively...
December 14, 2016: Autoimmunity Reviews
https://www.readbyqxmd.com/read/27940596/predicting-cardiopulmonary-involvement-in-patients-with-systemic-sclerosis-complementary-value-of-nailfold-videocapillaroscopy-patterns-and-disease-specific-autoantibodies
#7
Iris M Markusse, Jessica Meijs, Berber de Boer, Jaap A Bakker, H Pascal C Schippers, Anne A Schouffoer, Nina Ajmone Marsan, Lucia J M Kroft, Maarten K Ninaber, Tom W J Huizinga, Jeska K de Vries-Bouwstra
OBJECTIVE: To evaluate the prevalence of anti-extractable nuclear antigen (anti-ENA) antibodies in Dutch SSc patients and the predictive power of the combination of specific anti-ENA antibodies and nailfold videocapillaroscopy (NVC) patterns to improve identification of patients with high risk for cardiopulmonary involvement. METHODS: A total of 287 patients (79%) from the Leiden SSc-Cohort had data available on NVC-pattern (no SSc-specific, early, active, late) and anti-ENA antibodies...
December 10, 2016: Rheumatology
https://www.readbyqxmd.com/read/27870764/anti-ro-and-concomitant-anti-la-autoantibodies-strongly-associated-with-anti-oxldl-or-anti-phospholipid-antibody-in-systemic-lupus-erythematosus
#8
Biji Theyilamannil Kurien, James Fesmire, Camille Jean Anderson, Robert Hal Scofield
BACKGROUND: Premature atherosclerosis is observed in systemic lupus erythematosus (SLE). Oxidative modification of LDL is associated with atherosclerotic plaque formation. OBJECTIVES: We hypothesized that anti-oxidized LDL (oxLDL) and anti-phospholipid (APL) in SLE sera would segregate with specific antibody subsets, and that anti-oxLDL antibodies will linger in circulation over an extended period. PATIENTS AND METHODS: Sixty-seven SLE and control subjects and two SLE subjects with sera collected longitudinally for 13 years were tested for anti-oxLDL and IgG/IgM/IgA APL antibodies...
December 2016: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/27864990/the-clinical-relevance-of-anti-fibrillarin-anti-u3-rnp-autoantibodies-in-systemic-sclerosis
#9
F Tall, M Dechomet, S Riviere, V Cottin, E Ballot, K P Tiev, R Montin, C Morin, Y Chantran, C Grange, D Jullien, J Ninet, P Chretien, J Cabane, N Fabien, C Johanet
OBJECTIVES: Systemic sclerosis (SSc) is a heterogeneous autoimmune disease associated with several antinuclear autoantibodies useful to diagnosis and prognosis. The aim of the present multicentric study was to determine the clinical relevance of anti-fibrillarin autoantibodies (AFA) in patients with SSc. METHODS: The clinical features of 37 SSc patients positive for AFA (AFA+) and 139 SSc patients without AFA (AFA-) were collected retrospectively from medical records to enable a comparison between AFA- and AFA+ patients...
November 16, 2016: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/27862976/heterogeneous-nuclear-ribonucleoprotein-k-is-associated-with-poor-prognosis-and-regulates-proliferation-and-apoptosis-in-bladder-cancer
#10
Xu Chen, Peng Gu, Ruihui Xie, Jinli Han, Hao Liu, Bo Wang, Weibin Xie, Weijie Xie, Guangzheng Zhong, Changhao Chen, Shujie Xie, Ning Jiang, Tianxin Lin, Jian Huang
Heterogeneous nuclear ribonucleoprotein K (hnRNPK) is an essential RNA- and DNA-binding protein that regulates diverse biological events, especially DNA transcription. hnRNPK overexpression is related to tumorigenesis in several cancers. However, both the expression patterns and biological mechanisms of hnRNPK in bladder cancer are unclear. We investigated hnRNPK expression by immunohistochemistry in 188 patients with bladder cancer, and found that hnRNPK expression levels were significantly increased in bladder cancer tissues and that high-hnRNPK expression was closely correlated with poor prognosis...
November 10, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27823970/expression-of-functional-alternative-telomerase-rna-component-gene-in-mouse-brain-and-in-motor-neurons-cells-protects-from-oxidative-stress
#11
Erez Eitan, Admoni Tamar, Grin Yossi, Refael Peleg, Alex Braiman, Esther Priel
Telomerase, a ribonucleoprotein, is highly expressed and active in many tumor cells and types, therefore it is considered to be a target for anti-cancer agents. On the other hand, recent studies demonstrated that activation of telomerase is a potential therapeutic target for age related diseases. Telomerase mainly consists of a catalytic protein subunit with a reverse transcription activity (TERT) and an RNA component (TERC), a long non-coding RNA, which serves as a template for the re-elongation of telomeres by TERT...
November 3, 2016: Oncotarget
https://www.readbyqxmd.com/read/27810925/cd72-negatively-regulates-b-lymphocyte-responses-to-the-lupus-related-endogenous-toll-like-receptor-7-ligand-sm-rnp
#12
Chizuru Akatsu, Kenro Shinagawa, Nobutaka Numoto, Zhihong Liu, Ayse Konuskan Ucar, Mohammad Aslam, Shirly Phoon, Takahiro Adachi, Koji Furukawa, Nobutoshi Ito, Takeshi Tsubata
Toll-like receptor 7 (TLR7) plays an essential role in development of systemic lupus erythematosus by co-stimulating B cells reactive to the endogenous TLR7 ligand Sm/ribonucleoprotein (RNP), a crucial lupus self-antigen. However, how the TLR7-mediated autoimmune response is regulated is not yet known. In this study, we demonstrate that CD72, an inhibitory B cell co-receptor known to prevent development of lupus, recognizes Sm/RNP at the extracellular C-type lectin-like domain (CTLD) and specifically inhibits B cell response to Sm/RNP...
November 14, 2016: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27805282/toll-like-receptor-3-stimulation-triggers-metabolic-reprogramming-in-pharyngeal-cancer-cell-line-through-myc-mapk-and-hif
#13
Tanja Matijevic Glavan, Ana Cipak Gasparovic, Benjamin Vérillaud, Pierre Busson, Jasminka Pavelic
Toll-like receptor 3 (TLR3) has a dual role in cancer; its activation can trigger apoptosis as well as stimulate cancer cell survival, proliferation, and progression. We have shown here that TLR3 activation can induce metabolic reprogramming in a pharyngeal cancer cell line, leading to increased aerobic glycolysis, cell migration, elevated levels of reactive oxidative species (ROS), and decreased anti-oxidative response. Key proteins in these signaling pathways are heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1), pyruvate kinase M2 (PKM2), and CD44 variants, which were over-expressed after TLR3 stimulation...
November 2, 2016: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/27770830/the-association-of-low-complement-with-disease-activity-in-systemic-sclerosis-a-prospective-cohort-study
#14
James Esposito, Zoe Brown, Wendy Stevens, Joanne Sahhar, Candice Rabusa, Jane Zochling, Janet Roddy, Jennifer Walker, Susanna M Proudman, Mandana Nikpour
BACKGROUND: In some rheumatic diseases such as systemic lupus erythematosus (SLE), low serum complement ('hypocomplementaemia') is a feature of active disease. However, the role of hypocomplementaemia in systemic sclerosis (SSc) is unknown. We sought to determine the frequency, clinical associations and relationship to disease activity of hypocomplementaemia in SSc. METHODS: The study included 1140 patients fulfilling the 2013 American College of Rheumatology criteria for SSc...
October 22, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27727192/cross-and-co-packaging-of-retroviral-rnas-and-their-consequences
#15
Lizna M Ali, Tahir A Rizvi, Farah Mustafa
Retroviruses belong to the family Retroviridae and are ribonucleoprotein (RNP) particles that contain a dimeric RNA genome. Retroviral particle assembly is a complex process, and how the virus is able to recognize and specifically capture the genomic RNA (gRNA) among millions of other cellular and spliced retroviral RNAs has been the subject of extensive investigation over the last two decades. The specificity towards RNA packaging requires higher order interactions of the retroviral gRNA with the structural Gag proteins...
October 11, 2016: Viruses
https://www.readbyqxmd.com/read/27692000/frequency-of-autoimmune-disorders-and-autoantibodies-in-patients-with-neuromyelitis-optica
#16
Wildéa Lice de Carvalho Jennings Pereira, Edna Maria Vissoci Reiche, Ana Paula Kallaur, Sayonara Rangel Oliveira, Andréa Name Colado Simão, Marcell Alysson Batisti Lozovoy, Lucas José Vaz Schiavão, Paula Raquel do Vale Pascoal Rodrigues, Daniela Frizon Alfieri, Tamires Flauzino, Damacio Ramón Kaimen-Maciel
OBJECTIVE: The aim of this study was to report the frequency of autoimmune disorders and autoantibodies in 22 patients with neuromyelitis optica (NMO), as well as whether the seropositivity for autoantibodies differs between anti-aquaporin 4 (AQP4) positive and AQP4 negative NMO patients. METHODS: Demographic, medical records, and a profile of autoantibodies were evaluated in 22 NMO patients, including AQP4, anti-thyroid-stimulating hormone receptor, antinuclear antibodies (ANA), anti-thyroperoxidase (anti-TPO), anti-thyroglobulin (anti-Tg), anti-double-stranded DNA, anti-neutrophil cytoplasmic, anti-cyclic citrullinate peptide, rheumatoid factor, anti-SSA/Ro, anti-SSB/La, anti-Smith antibodies (anti-Sm), anti-ribonucleoprotein, anti-nucleosome, and anti-Scl70...
October 3, 2016: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/27681518/estrogen-receptor-alpha-gene-esr1-polymorphism-can-contribute-to-clinical-findings-in-systemic-lupus-erythematosus-patients
#17
M N Drehmer, D Andrade, I A Pereira, A R Marrero, Y C N Muniz, I R de Souza, S E Löfgren
BACKGROUND: Estrogens have a modulatory effect on several immune responses, many of which are correlated to autoimmune diseases. Estrogens act through binding to their receptors, and an overexpression of these receptors has been identified in patients with different autoimmune diseases. Here we analyzed the association of a putative functional genetic variant in the main estrogen receptor (ERα) gene (ESR1), and the susceptibility to clinical findings and severity of SLE. METHODS: A total of 426 individuals (266 healthy controls and 160 SLE patients) were genotyped for the polymorphism rs2234693 in the ESR1 gene...
September 27, 2016: Lupus
https://www.readbyqxmd.com/read/27632569/targeting-therapy-for-homocysteic-acid-in-the-blood-represents-a-potential-recovery-treatment-for-cognition-in-alzheimer-s-disease-patients
#18
Tohru Hasegawa, Wataru Ukai
At present, we have no reliable means of recovering cognitive impairment in Alzheimer's disease (AD) patients. We hypothesized that homocysteic acid (HA) in the blood might represent one such pathogen that could be excreted into the urine. Since DHA is known to reduce circulating levels of homocysteine, and since exercise attenuates this effect, it follows that supplementation of the diet with DHA, along with increased levels of physical activity, may help to reduce cognitive impairment in AD patients. Our hypothesis was proven to be correct because memory problems in 3xTg- AD mice (a model for AD in which animals develop amyloid pathology), and in a mouse model of familial AD, were recovered following treatment with an anti-HA antibody and not by amyloid treatment...
September 14, 2016: Aging
https://www.readbyqxmd.com/read/27618831/clinical-association-of-mixed-connective-tissue-disease-and-granulomatosis-with-polyangiitis-a-case-report-and-systematic-screening-of-anti-u1rnp-and-anti-pr3-auto-antibody-double-positivity-in-ten-european-hospitals
#19
Amandine Tubery, Françoise Fortenfant, Bernard Combe, Isabelle Abreu, Xavier Bossuyt, Pascale Chretien, Sophie Desplat-Jégo, Nicole Fabien, Sophie Hue, Catherine Johanet, Daniela Lakomy, Thierry Vincent, Claire I Daïen
We report here the case of a 50-years-old man treated for mixed connective tissue disease (MCTD) positive for anti-U1 ribonucleoprotein (U1RNP) antibodies who secondarily developed a granulomatosis with polyangiitis (GPA) associated with anti-proteinase 3 anti-neutrophil cytoplasmic antibodies (PR3-ANCA). We then evaluated the frequency of the association between anti-U1RNP and anti-PR3-ANCA antibodies by a systematic retrospective study in ten European hospitals. Overall, out of 11,921 samples analyzed for both auto-antibodies, 18 cases of anti-U1RNP and anti-PR3-ANCA double positivity were found and only one patient presented with both MCTD and GPA symptoms...
September 12, 2016: Immunologic Research
https://www.readbyqxmd.com/read/27603214/multiple-autoantibodies-and-neuromyelitis-optica-spectrum-disorders
#20
Chen Chen, Sun Xiaobo, Wang Yuge, Shu Yaqing, Fang Ling, Peng Lisheng, Lu Zhengqi, Qiu Wei
OBJECTIVE: To investigate the relationship between neuromyelitis optica spectrum disorder (NMOSD) and autoantibodies. METHODS: Blood samples of 108 NMOSD patients and 38 controls were collected from January 2012 to August 2014. Immunological parameters, including anti-aquaporin 4, antinuclear, anti-ribonucleoprotein, anti-SM, anti-SSA/Ro, anti-SSB/La and anti-ribosomal P-protein autoantibodies were examined. RESULTS: The NMOSD group exhibited a significantly higher percentage of anti-aquaporin 4 antibodies compared with the control group (76...
2016: Neuroimmunomodulation
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