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Influenza cancer

Martin R Goodier, Chiara Lusa, Sam Sherratt, Ana Rodriguez-Galan, Ron Behrens, Eleanor M Riley
Cross-linking of FcγRIII (CD16) by immune complexes induces antibody-dependent cellular cytotoxicity (ADCC) by natural killer (NK) cells, contributing to control of intracellular pathogens; this pathway can also be targeted for immunotherapy of cancerous or otherwise diseased cells. However, downregulation of CD16 expression on activated NK cells may limit or regulate this response. Here, we report sustained downregulation of CD16 expression on NK cells in vivo after intramuscular (but not intranasal) influenza vaccination...
2016: Frontiers in Immunology
Elizabeth M Gordon, Debbie M Figueroa, Amisha V Barochia, Xianglan Yao, Stewart J Levine
Apolipoprotein A-I (apoA-I) and high-density lipoproteins (HDL) mediate reverse cholesterol transport out of cells. Furthermore, HDL has additional protective functions, which include anti-oxidative, anti-inflammatory, anti-apoptotic, and vasoprotective effects. In contrast, HDL can become dysfunctional with a reduction in both cholesterol efflux and anti-inflammatory properties in the setting of disease or the acute phase response. These paradigms are increasingly being recognized to be active in the pulmonary system, where apoA-I and HDL have protective effects in normal lung health, as well as in a variety of disease states, including acute lung injury (ALI), asthma, chronic obstructive pulmonary disease, lung cancer, pulmonary arterial hypertension, pulmonary fibrosis, and viral pneumonia...
2016: Frontiers in Pharmacology
Kathrin Zürcher, Marcel Zwahlen, Marie Ballif, Hans L Rieder, Matthias Egger, Lukas Fenner
BACKGROUND: Tuberculosis (TB) mortality declined in the northern hemisphere over the last 200 years, but peaked during the Russian (1889) and the Spanish (1918) influenza pandemics. We studied the impact of these two pandemics on TB mortality. METHODS: We retrieved historic data from mortality registers for the city of Bern and countrywide for Switzerland. We used Poisson regression models to quantify the excess pulmonary TB (PTB) mortality attributable to influenza...
2016: PloS One
Nancy F Crum-Cianflone
Background.  Invasive aspergillosis may occur in the setting of severe influenza infections due to viral-induced respiratory epithelium disruption and impaired immune effects, but data are limited. Methods.  A retrospective study was conducted among severe influenza cases requiring medical intensive care unit (ICU) admission at an academic center during the 2015-2016 season. Data collected included respiratory cultures, medical conditions and immunosuppressants, laboratory and radiographic data, and outcomes...
September 2016: Open Forum Infectious Diseases
Moran Golan, Valeria Feinshtein, Ayelet David
The key for successful gene silencing is to design a safe and efficient siRNA delivery system for the transfer of therapeutic nucleic acids into the target cells. Here, we describe the design of hydrophilic N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer displaying multiple copies of octaarginine (R8) and its use in promoting the effective delivery of small interfering RNA (siRNA) molecules intracellularly. Fluorescein-5-isothiocyanate (FITC)-labeled HPMA copolymer-bound R8 (P-R8-FITC) was synthesized with increasing R8 molar ratios (4 to 9...
October 1, 2016: European Journal of Pharmaceutics and Biopharmaceutics
Tomoaki Mori, Kento Nakamura, Keisuke Masaoka, Yusuke Fujita, Ryosuke Morisada, Koichi Mori, Takamasa Tobimatsu, Takashi Sera
Various viruses infect animals and humans and cause a variety of diseases, including cancer. However, effective methodologies to prevent virus infection have not yet been established. Therefore, development of technologies to inactivate viruses is highly desired. We have already demonstrated that cleavage of a DNA virus genome was effective to prevent its replication. Here, we expanded this methodology to RNA viruses. In the present study, we used staphylococcal nuclease (SNase) instead of the PIN domain (PilT N-terminus) of human SMG6 as an RNA-cleavage domain and fused the SNase to a human Pumilio/fem-3 binding factor (PUF)-based artificial RNA-binding protein to construct an artificial RNA restriction enzyme with enhanced RNA-cleavage rates for influenzavirus...
October 28, 2016: Biochemical and Biophysical Research Communications
Rak-Kyun Seong, Young-Ki Choi, Ok Sarah Shin
Melanoma differentiation associated gene-7 (mda-7)/interleukin- 24 (IL-24) is a secreted cytokine, which plays an essential role in tumor suppression. Although its role as a multifunctional protein affecting broad types of cancers is well described, functions of IL-24 in host defense against virus infection are yet to be determined. In this study, we explored the anti-viral effect of recombinant IL-24 treatment during influenza infection. Infection of human lung adenocarcinoma cells (A549) with the influenza A virus up-regulated IL-24 mRNA and protein expression in a time-dependent manner...
October 2016: Journal of Microbiology / the Microbiological Society of Korea
Garbis A Meshefedjian, Marie-Jo Ouimet, Louis-Robert Frigault, Viviane Leaune, Sadoune Ait Kaci Azzou, Marie-Ève Simoneau
INTRODUCTION: The objective of this study was to provide information on the effect of disparities in material deprivation, access to health care services, and lifestyle on the likelihood of undergoing screening for disease prevention. METHODS: We used data from a probability sample (N = 10,726) of the Montreal population aged 15 years or older and assessed 6 dependent variables (screening for breast cancer, cervical cancer, colon cancer, blood glucose, and high blood pressure and receipt of the seasonal influenza vaccination), and 3 independent variables (disparities in material deprivation, access to health care services, and personal lifestyle habits)...
September 29, 2016: Preventing Chronic Disease
Marie von Lilienfeld-Toal, Annemarie Berger, Maximilian Christopeit, Marcus Hentrich, Claus Peter Heussel, Jana Kalkreuth, Michael Klein, Matthias Kochanek, Olaf Penack, Elke Hauf, Christina Rieger, Gerda Silling, Maria Vehreschild, Thomas Weber, Hans-Heinrich Wolf, Nicola Lehners, Enrico Schalk, Karin Mayer
BACKGROUND: Community acquired viruses (CRVs) may cause severe disease in cancer patients. Thus, efforts should be made to diagnose CRV rapidly and manage CRV infections accordingly. METHODS: A panel of 18 clinicians from the Infectious Diseases Working Party of the German Society for Haematology and Medical Oncology have convened to assess the available literature and provide recommendations on the management of CRV infections including influenza, respiratory syncytial virus, parainfluenza virus, human metapneumovirus and adenovirus...
November 2016: European Journal of Cancer
Hamid Mohseni, Amit Kiran, Reza Khorshidi, Kazem Rahimi
AIMS: Evidence supporting yearly influenza vaccination in patients with chronic heart failure (HF) is limited, consequently leading to inconsistent guideline recommendations. We aimed to investigate the impact of influenza vaccination on the risk of hospitalization in HF patients. METHODS AND RESULTS: We used linked primary and secondary health records in England between 1990 and 2013. Using a self-controlled case series design with conditional Poisson regression, we estimated the incidence rate ratio (IRR, 95% CI) of the number of hospitalizations in a year following vaccination with an adjacent vaccination-free year in the same individuals...
September 22, 2016: European Heart Journal
Tamara V Teplyakova, Tatiana A Kosogova
This review presents data on the studied antiviral activities of Agaricomycetes mushrooms against the herpes, West Nile, influenza, human immunodeficiency, and hepatitis viruses, as well as orthopoxviruses, including the variola virus. Polysaccharides and other compounds (e.g., proteins, glycoproteins, terpenoids, melanins, nucleosides) exhibit antiviral activity against many viruses that are pathogenic in humans. Effective strains isolated from wild mushrooms in culture represent promising objects for the development of biotechnological drugs, including ones possessing antiviral activity...
2016: International Journal of Medicinal Mushrooms
Giuseppe La Torre, Alice Mannocci, Vittoria Colamesta, Valeria D'Egidio, Cristina Sestili, Antonietta Spadea
BACKGROUND: The risk of getting influenza and pneumococcal disease is higher in cancer patients, and serum antibody levels tend to be lower in patients with hematological malignancy. OBJECTIVE: To assess flu and pneumococcal vaccinations efficacy, effectiveness, and safety in onco-hematological patients. METHODS: Two systematic reviews and possible meta-analysis were conducted to summarize the results of all primary study in the scientific literature about the flu and pneumococcal vaccine in onco-hematological patients...
2016: Mediterranean Journal of Hematology and Infectious Diseases
Megan E Fitzgerald, David C Rawling, Olga Potapova, Xiaoming Ren, Andrew Kohlway, Anna Marie Pyle
RIG-I is an innate immune receptor that detects and responds to infection by deadly RNA viruses such as influenza, and Hepatitis C. In the cytoplasm, RIG-I is faced with a difficult challenge: it must sensitively detect viral RNA while ignoring the abundance of host RNA. It has been suggested that RIG-I has a 'proof-reading' mechanism for rejecting host RNA targets, and that disruptions of this selectivity filter give rise to autoimmune diseases. Here, we directly monitor RNA proof-reading by RIG-I and we show that it is controlled by a set of conserved amino acids that couple RNA and ATP binding to the protein (Motif III)...
September 12, 2016: Nucleic Acids Research
Melissa L Harris, Xenia Dolja-Gore, Hal Kendig, Julie E Byles
BACKGROUND: Hospitalisations are the prime contributor to healthcare expenditure, with older adults often identified as high hospital users. Despite the apparent high use of hospitals at the end of life, limited evidence currently exists regarding reasons for hospitalisation. Understanding complex end of life care needs is required for future health care planning as the global population ages. This study aimed to investigate patterns of hospitalisation in the last year of life by cause of death (COD) as well as reasons for admission and short-term predictors of hospital use...
2016: BMC Health Services Research
Chintan H Kapadia, Shaomin Tian, Jillian L Perry, J Christopher Luft, Joseph M DeSimone
Educating our immune system via vaccination is an attractive approach to combat infectious diseases. Eliciting antigen specific cytotoxic T cells (CTLs), CD8(+) effector T cells, is essential in controlling intracellular infectious diseases such as influenza (Flu), tuberculosis (TB), hepatitis, and HIV/AIDS, as well as tumors. However, vaccination utilizing subunit peptides to elicit a potent CD8(+) T cell response with antigenic peptides is typically ineffective due to poor immunogenicity. Here we have engineered a reduction sensitive nanoparticle (NP) based subunit vaccine for intracellular delivery of an antigenic peptide and immunostimulatory adjuvant...
October 3, 2016: Molecular Pharmaceutics
Najwa Yahya Fayea, Ashraf Elsayed Fouda, Shaimaa Mohamed Kandil
BACKGROUND: A limited number of studies have examined the vaccine-specific antibody status of children with cancer. There are disagreements over the guidelines for postcancer immunization strategy. METHODS: Our study was an observational, cross-sectional retrospective review of data collected on children who were seen in the outpatient clinic at King Abdullah Medical City, Oncology Center, Jeddah, the Kingdom of Saudi Arabia. Our aim was to evaluate the seropositive status to vaccine-preventable diseases: measles, mumps, rubella, diphtheria, tetanus, polio, and Haemophilus influenzae type B (HIB) in childhood cancer survivors at our center in order to plan future vaccination for these children and establish a simple revaccination schedule...
July 26, 2016: Pediatrics and Neonatology
Steffani R Bailey, John D Heintzman, Miguel Marino, Megan J Hoopes, Brigit A Hatch, Rachel Gold, Stuart C Cowburn, Christine A Nelson, Heather E Angier, Jennifer E DeVoe
INTRODUCTION: Preventive care delivery is an important quality outcome, and electronic data reports are being used increasingly to track these services. It is highly informative when electronic data sources are compared to information manually extracted from medical charts to assess validity and completeness. METHODS: This cross-sectional study used a random sample of Medicaid-insured patients seen at 43 community health centers in 2011 to calculate standard measures of correspondence between manual chart review and two automated sources (electronic health records [EHRs] and Medicaid claims), comparing documentation of orders for and receipt of ten preventive services (n=150 patients/service)...
November 2016: American Journal of Preventive Medicine
Juan Pablo Torres, Verónica De la Maza, Lisette Kors, Milena Villarroel, Paula Piemonte, Giannina Izquierdo, Carmen Salgado, Juan Tordecilla, Verónica Contardo, Mauricio J Farfán, Asunción Mejías, Octavio Ramilo, María Elena Santolaya
BACKGROUND: Respiratory viral infections in episodes of fever and neutropenia (FN) in children with cancer are not well characterized. We compared the clinical outcome of infections caused by different respiratory viruses (RVs) and by RV coinfection in this population. METHODS: Children with cancer and FN at 3 hospitals in Chile were prospectively evaluated by clinical examination, blood cultures and detection of 17 RVs using multiplex polymerase chain reaction (nasopharyngeal samples)...
September 2016: Pediatric Infectious Disease Journal
Siyuan Chen, Rongjun Chen
A novel multifunctional liposomal delivery platform has been developed to resemble the structural and functional traits of an influenza virus. Novel pseudopeptides were prepared to mimic the pH-responsive endosomolytic behavior of influenza viral peptides through grafting a hydrophobic amino acid, l-phenylalanine, onto the backbone of a polyamide, poly(l-lysine isophthalamide), at various degrees of substitution. These pseudopeptidic polymers were employed to functionalize the surface of cholesterol-containing liposomes that mimic the viral envelope...
August 31, 2016: ACS Applied Materials & Interfaces
Christoph Schneider, Samuel P Nobs, Alex K Heer, Emilio Hirsch, Josef Penninger, Owen M Siggs, Manfred Kopf
PI3Ks have been identified as key signaling proteins involved in many basic biologic processes in health and disease. Transgenic animals have been essential tools to study the underlying molecular mechanisms in this context and therefore, have been widely used to elucidate the role of these factors in many different settings. More specifically, PI3Kγ, a subunit highly expressed in the hematopoietic system, has been implicated to play an important role in many inflammatory diseases as well as cancer. Here, we report identification of multiple, additional, previously unknown mutations in the genome of a widely used PI3Kγ-deficient (PI3Kγ(-/-)) mouse colony...
July 28, 2016: Journal of Leukocyte Biology
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