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https://www.readbyqxmd.com/read/28737923/co-silencing-intestinal-transglutaminase-2-and-interleukin-15-using-gelatin-based-nanoparticles-in-an-in-vitro-model-of-celiac-disease
#1
Husain Attarwala, Valerie Clausen, Prasoon Chaturvedi, Mansoor M Amiji
In this study, we have developed type B gelatin-based nanoparticle based siRNA delivery system for silencing of intestinal transglutaminase-2 (TG2) and interleukin-15 (IL-15) genes in cultured human intestinal epithelial cells (Caco-2) and murine alveolar macrophage cells (J774A.1). Small interfering RNA (siRNA) targeting the TG2 or IL-15 gene was encapsulated within gelatin nanoparticles using ethanol-water solvent displacement method. Size, charge and morphology of gelatin nanoparticles were evaluated using Zetasizer instrument and transmission electron microscopy...
July 24, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28732046/qualitative-differences-in-cellular-immunogenicity-elicited-by-hepatitis-c-virus-t-cell-vaccines-employing-prime-boost-regimens
#2
Wendy G Tan, Iryna Zubkova, Alla Kachko, Frances Wells, Heiko Adler, Gerd Sutter, Marian E Major
T-cell based vaccines have been considered as attractive candidates for prevention of hepatitis C virus (HCV) infections. In this study we compared the magnitude and phenotypic characteristics of CD8+ T-cells induced by three commonly used viral vectors, Adenovirus-5 (Ad5), Vaccinia virus (VV) and Modified Vaccinia Ankara (MVA) expressing the HCV NS3/4A protein. C57/BL6 mice were primed with DNA expressing NS3/4A and boosted with each of the viral vectors in individual groups of mice. We then tracked the vaccine-induced CD8+ T-cell responses using pentamer binding and cytokine production analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28725493/interferon-alpha-based-immunotherapies-in-the-treatment-of-b-cell-derived-hematologic-neoplasms-in-today-s-treat-to-target-era
#3
REVIEW
Li Zhang, Yu-Tzu Tai, Matthew Zhi Guang Ho, Lugui Qiu, Kenneth C Anderson
B cell lymphoma and multiple myeloma (MM) are the most common hematological malignancies which benefit from therapeutic monoclonal antibodies (mAbs)-based immunotherapies. Despite significant improvement on patient outcome following the use of novel therapies for the past decades, curative treatment is unavailable for the majority of patients. For example, the 5-year survival of MM is currently less than 50%. In the 1980s, interferon-α was used as monotherapy in newly diagnosed or previously treated MM with an overall response rate of 15-20%...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/28724759/cholesterol-25-hydroxylase-inhibits-porcine-reproductive-and-respiratory-syndrome-virus-replication-through-enzyme-activity-dependent-and-independent-mechanisms
#4
Wenting Ke, Liurong Fang, Huiyuan Jing, Ran Tao, Ting Wang, Yang Li, Siwen Long, Dang Wang, Shaobo Xiao
Cholesterol 25-hydroxylase (CH25H) has recently been identified as a host restriction factor that exerts antiviral effects by catalyzing the production of 25-hydroxycholesterol (25HC). CH25H can be rapidly induced upon infection with some viruses. Porcine reproductive and respiratory syndrome virus (PRRSV), an arterivirus, has ranked among the most important swine pathogens since it was discovered in the late 1980s. In this study, we found that PRRSV infection significantly downregulated the expression of CH25H in cells by a so far unknown mechanism, suggesting that CH25H might exert antiviral activity against PRRSV...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28722363/-erdheim-chester-disease-a-differential-diagnosis-of-retroperitoneal-fibrosis
#5
Raphaël André, Jörg D Seebach
Erdheim-Chester disease is a rare multisystemic non-Langerhans histiocytosis with about 500 reported cases. Typical features include retroperitoneal and perirenal fibrosis (hairy kidney), periaortitis with a coated aorta, osteosclerosis of the lower limbs, and sometimes exophthalmia or diabetes insipidus. Histology is the cornerstone for diagnosis showing an infiltrate with foamy histiocytes and occasional multinucleated giant cells (Touton cells). There is no standard treatment regimen, current options include corticosteroids, interferon alpha, systemic chemotherapy, and radiation therapy ; however, a better understanding of the pathophysiological mechanisms has allowed the emergence of novel targeted treatments such as vemurafenib, imatinib, and anakinra...
April 5, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28719267/comparison-of-cytokine-responses-in-ecuadorian-children-infected-with-giardia-ascaris-or-both-parasites
#6
Jill Weatherhead, Andrea Arévalo Cortés, Carlos Sandoval, Maritza Vaca, Martha Chico, Sophia Loor, Philip J Cooper, Rojelio Mejia
AbstractMore than 2 billion people are infected with parasites globally, and the majority have coinfections. Intestinal protozoa and helminths induce polarizing CD4(+) T-helper cell 1 (Th1) mediated cytokine responses within the host. Such immune polarization may inhibit the ability of the host to mount an adequate immune response for pathogen clearance to concurrent pathogens. The current study evaluated the plasma cytokine profile in Ascaris and Giardia coinfected children compared with Giardia- and Ascaris-only infected children...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28711394/exercise-prevents-ifn-%C3%AE-induced-mood-and-cognitive-dysfunction-and-increases-bdnf-expression-in-the-rat
#7
Charlotte K Callaghan, Jennifer Rouine, Shane M O'Mara
Aerobic exercise has marked effects on mood and cognition. Here, we used an interferon-alpha (IFN-α) induced depression model to evaluate the potential efficacy of chronic treadmill running on mood and cognition in the rat. IFN-α treatment induces behavioral deficits in the forced swim test (FST), open field test and object exploration task. Male han Wistar rats (n=8 per group, 3month old) were injected 3 times weekly with recombinant human IFN-α or saline (control) for 4weeks. One group was exercised 3 times (1h treadmill running) per week while the other remained sedentary...
July 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28709686/toxicologic-evaluations-of-recombinant-liver-targeting-interferon-ifn-csp-genotoxicity-and-tegenicratoity
#8
Wenting Zeng, Chunxu Wu, Jie Wang, Lingjie Cao, Xiaobao Jin, Jiayong Zhu, Xuemei Lu
Interferon alpha as the one of FDA recommended drugs for Hepatitis B virus (HBV) infection has many side effects. Targeting IFNα to the liver may be a strategy to increase its efficacy locally and may increase efficacy of IFNα-based therapy of HBV infection. We have prepared a novel liver-targeting fusion interferon (IFN-CSP) combining IFN α2b with plasmodium region I peptide and have revealed it may be an excellent candidate as a liver-targeting anti-HBV agent. In this study, we investigated the genotoxic and teratogenic effects of IFN-CSP...
July 11, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28704535/interferon-related-genetic-markers-of-necroinflammatory-activity-in-chronic-hepatitis-c
#9
Rosario López-Rodríguez, Ángel Hernández-Bartolomé, María Jesús Borque, Yolanda Rodríguez-Muñoz, Samuel Martín-Vílchez, Luisa García-Buey, Leticia González-Moreno, Yolanda Real-Martínez, Paloma Muñoz de Rueda, Javier Salmerón, José Ramón Vidal-Castiñeira, Carlos López-Larrea, Luis Rodrigo, Ricardo Moreno-Otero, Paloma Sanz-Cameno
INTRODUCTION: Chronic hepatitis C (CHC) is a major cause of liver disease worldwide which often leads to progressive liver inflammation, fibrosis, cirrhosis and hepatocellular carcinoma (HCC). CHC displays heterogeneous progression depending on a broad set of factors, some of them intrinsic to each individual such as the patient's genetic profile. This study aims to evaluate the contribution of certain genetic variants of crucial interferon alpha and lambda signaling pathways to the hepatic necroinflammatory activity (NIA) grade of CHC patients...
2017: PloS One
https://www.readbyqxmd.com/read/28704381/sofosbuvir-based-treatment-of-chronic-hepatitis-c-genotype-3-infections-a-scandinavian-real-life-study
#10
Olav Dalgard, Ola Weiland, Geir Noraberg, Lars Karlsen, Lars Heggelund, Martti Färkkilâ, Ulla Balslev, Erika Belard, Anne Øvrehus, Mette Skalshøi Kjær, Henrik Krarup, Birgit Thorup Røge, Sofie Hallager, Lone G Madsen, Alex Lund Laursen, Martin Lagging, Nina Weis
BACKGROUND AND AIMS: Chronic hepatitis C virus (HCV) genotype 3 infection with advanced liver disease has emerged as the most challenging to treat. We retrospectively assessed the treatment outcome of sofosbuvir (SOF) based regimes for treatment of HCV genotype 3 infections in a real life setting in Scandinavia. METHODS: Consecutive patients with chronic HCV genotype 3 infection were enrolled at 16 treatment centers in Denmark, Sweden, Norway and Finland. Patients who had received a SOF containing regimen were included...
2017: PloS One
https://www.readbyqxmd.com/read/28700280/biologic-treatment-options-for-retinal-neovascularization-in-beh%C3%A3-et-s-disease
#11
Nikos N Markomichelakis, Evaggelia K Aissopou, Stelios Maselos, Ilknur Tugal-Tutkun, Petros P Sfikakis
PURPOSE: Relapsing ocular inflammation occurs in about 70% of patients with Behçet's disease (BD) and can lead to permanent loss of vision. Neovascularization of the optic disc (NVD) or elsewhere in the retina (NVE) is a relatively uncommon but severe complication that lacks standardized treatment. METHODS: We report on the therapeutic use of anti-TNF monoclonal antibodies for BD-associated NVD and NVE in one pediatric patient (subcutaneous adalimumab) and one young man (intravenous infliximab)...
July 12, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28700247/long-term-efficacy-of-pegylated-interferon-alpha-2b-in-beh%C3%A3-et-s-uveitis-a-small-case-series
#12
Hande Celiker, Haluk Kazokoglu, Haner Direskeneli
PURPOSE: To assess the long-term efficacy and safety of pegylated interferon alpha-2b (peg-IFN-α-2b) for severe uveitis associated with Behçet's disease. METHODS: Peg-IFN-α-2b was administrated at an initial dosage of 0,5-1,5 µg/kg/week. If any complications were observed, the dosage was tapered. Ocular examinations, systemic findings, and treatment compliance of the patients were evaluated. RESULTS: Control of ocular inflammation was achieved in all patients (n = 4)...
July 12, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28698279/zika-virus-persistently-infects-and-is-basolaterally-released-from-primary-human-brain-microvascular-endothelial-cells
#13
Megan C Mladinich, John Schwedes, Erich R Mackow
Zika virus (ZIKV) is a mosquito-borne Flavivirus that has emerged as the cause of encephalitis and fetal microencephaly in the Americas. ZIKV uniquely persists in human bodily fluids for up to 6 months, is sexually transmitted, and traverses the placenta and the blood-brain barrier (BBB) to damage neurons. Cells that support persistent ZIKV replication and mechanisms by which ZIKV establishes persistence remain enigmatic but central to ZIKV entry into protected neuronal compartments. The endothelial cell (EC) lining of capillaries normally constrains transplacental transmission and forms the BBB, which selectively restricts access of blood constituents to neurons...
July 11, 2017: MBio
https://www.readbyqxmd.com/read/28697228/lichenoid-dermatitis-from-interferon-alpha-2a-in-a-patient-with-metastatic-renal-cell-carcinoma-and-seronegative-hcv
#14
Amelia E Bush, Sharon R Hymes, Sirunya Silapunt
<p>Cutaneous reactions to interferon, including a lichenoid drug reaction, are most commonly reported in patients undergoing treatment for hepatitis C virus (HCV) infection. There have been case reports of interferon-induced lichen planus in seronegative HCV patients with lymphoproliferative disorders and melanoma. We report the case of a 71-year-old man undergoing treatment with interferon for metastatic renal cell carcinoma (RCC) who developed an eruption 2 months after starting interferon. Clinical and histological findings from biopsies supported a diagnosis of interferon-induced lichen planus...
July 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28692581/%C3%AE-9-tetrahydrocannabinol-suppresses-secretion-of-ifn%C3%AE-by-plasmacytoid-dendritic-cells-from-healthy-and-hiv-infected-individuals
#15
Joseph E Henriquez, Michael D Rizzo, Matthias A Schulz, Robert B Crawford, Peter Gulick, Norbert E Kaminski
Plasmacytoid dendritic cells (pDCs) play a crucial role in host antiviral immune response through secretion of type I interferon. Interferon alpha (IFNα), a type I IFN, is critical for mounting the initial response to viral pathogens. A consequence of Human Immunodeficiency Virus-1 (HIV) infection is a decrease in both pDC number and function, but prolonged pDC activity has been linked with progression from HIV infection to the development of AIDS. Patients with HIV in the United States routinely use cannabinoid-based therapies to combat the side effects of HIV infection and antiretroviral therapy...
August 15, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28690524/erdheim-chester-disease-case-report-with-aggressive-multisystem-manifestations-and-review-of-the-literature
#16
Sultan Alotaibi, Osama Alhafi, Hatem Nasr, Khalid Eltayeb, Ghaleb Elyamany
Erdheim-Chester disease (ECD) is an extremely rare and aggressive form of non-Langerhans cell histiocytosis. ECD usually presents with bone pain in adults aged 40-60. Its etiology is unknown but it is thought to be either a reactive or neoplastic disorder. Recently, mutation of the proto-oncogene BRAF (BRAFV600E) has been found in more than 50% of cases. The multisystemic form of ECD is associated with significant morbidity, which may arise due to histiocytic infiltration of critical organ systems. The common sites of involvement are the skeleton, central nervous system, cardiovascular system, lungs, retroperitoneum, and skin...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28689585/rheumatologic-manifestations-of-hepatitis-c-virus-infection
#17
REVIEW
Patrice Cacoub, Cloé Comarmond, Anne Claire Desbois, David Saadoun
Hepatitis C virus (HCV) infection is associated with a morbidity and mortality due to liver complications. HCV infection is also frequently associated with rheumatic disorders, such as arthralgia, myalgia, cryoglobulinemia vasculitis, and sicca syndrome, as well as the production of autoantibodies. The treatment of HCV infection with interferon alpha (IFN) has been contraindicated for a long time in many rheumatologic autoimmune/inflammatory disorders. New oral IFN-free combinations offer an opportunity for HCV-infected patients with extrahepatic manifestations, including rheumatologic autoimmune/inflammatory disorders, to be cured with a short treatment duration and a low risk of side effects...
August 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28687704/synergistic-cytotoxicity-from-drugs-and-cytokines-in-vitro-as-an-approach-to-classify-drugs-according-to-their-potential-to-cause-idiosyncratic-hepatotoxicity-a-proof-of-concept-study
#18
Ashley R Maiuri, Bronlyn Wassink, Jonathan D Turkus, Anna B Breier, Theresa Lansdell, Gurpreet Kaur, Sarah L Hession, Patricia E Ganey, Robert A Roth
Idiosyncratic, drug-induced liver injury (IDILI) typically occurs in a small fraction of patients and has resulted in removal of otherwise efficacious drugs from the market. Current preclinical testing methods are ineffective in predicting which drug candidates have IDILI liability. Recent results suggest that immune mediators such as tumor necrosis factor-alpha (TNF) and interferon-gamma (IFN) interact with drugs that cause IDILI to kill hepatocytes. This proof-of-concept study was designed to test the hypothesis that drugs can be classified according to their ability to cause IDILI in humans using logistic regression modeling with covariates derived from concentration-response relationships that describe cytotoxic interaction with cytokines...
July 7, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28680855/p21-activated-kinase-4-signaling-promotes-japanese-encephalitis-virus-mediated-inflammation-in-astrocytes
#19
Wen He, Zikai Zhao, Awais Anees, Yunchuan Li, Usama Ashraf, Zheng Chen, Yunfeng Song, Huanchun Chen, Shengbo Cao, Jing Ye
Japanese encephalitis virus (JEV) targets central nervous system, resulting in neuroinflammation with typical features of neuronal death along with hyper activation of glial cells. Exploring the mechanisms responsible for the JEV-caused inflammatory response remains a pivotal area of research. In the present study, we have explored the function of p21-activated kinase 4 (PAK4) in JEV-mediated inflammatory response in human astrocytes. The results showed that JEV infection enhances the phosphorylation of PAK4 in U251 cells and mouse brain...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28679190/metastasis-of-renal-cell-carcinoma-to-the-thyroid-gland-9-years-after-nephrectomy-a-case-report-and-literature-review
#20
Zeki Bayraktar, Selami Albayrak
We report a case presenting with thyroid and lung metastases of renal cell carcinoma that was treated with molecular targeted therapy followed metastasectomy. A 52-year-old female underwent radical nephrectomy of right renal cell carcinoma in 2007. The patient presented 9 years after nephrectomy at the age of 61 years with sudden loss of vision on the left side and a mass on the neck. On magnetic resonance imagining, there was a mass on the midline of the neck, extending to the left, measuring 46 x 31 mm and containing central cystic-necrotic areas...
June 30, 2017: Archivio Italiano di Urologia, Andrologia
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