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https://www.readbyqxmd.com/read/28445973/plasmodium-parasite-as-an-effective-hepatocellular-carcinoma-antigen-glypican-3-delivery-vector
#1
Quan Liu, Yijun Yang, Xuefang Tan, Zhu Tao, Dickson Adah, Songlin Yu, Junnan Lu, Siting Zhao, Limei Qin, Li Qin, Xiaoping Chen
We have previously demonstrated that malaria parasite infection has an anti-tumor effect in a mouse model. This research aimed to investigate the possibility of using Plasmodium parasite as a novel vaccine vector for hepatocellular carcinoma (HCC) immunotherapy. We constructed a Plasmodium yoelii 17XNL strain (P.y) expressing murine glypican-3 (GPC3) protein (P.y-GPC3), and examined its therapeutic potency in a murine Hepa1-6-induced hepatoma model that highly expressed GPC3 protein. The prerequisites for invoking a CD8+ T cell response were assessed after P...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445927/vaccines-targeting-pres1-domain-overcome-immune-tolerance-in-hbv-carrier-mice
#2
Yingjie Bian, Zheng Zhang, Zhichen Sun, Juanjuan Zhao, Danming Zhu, Yang Wang, Sherry Fu, Jingya Guo, Longchao Liu, Lishan Su, Fu-Sheng Wang, Yang-Xin Fu, Hua Peng
Strong tolerance to HBV surface antigens limits the therapeutic effect of the conventional HBsAg vaccination in both preclinical animal models and patients with chronic hepatitis B (CHB) infection. In contrast, we observed that clinical CHB patients presented less immune tolerance to the preS1 domain of HBV large surface antigen. To study whether targeting the weak tolerance of preS1 region could improve therapy gain, we explored vaccination with the long peptide of preS1 domain for HBV virions clearance. Our study showed that this preS1-polypeptide rather than HBsAg vaccination induced robust immune responses in the HBV carrier mice...
April 26, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28445888/differential-effects-of-inflammatory-and-psychosocial-stress-on-mood-hypothalamic-pituitary-adrenal-axis-and-inflammation-in-remitted-depression
#3
Peter Niemegeers, Peter De Boer, Glenn J H Dumont, Filip Van Den Eede, Erik Fransen, Stephan J Claes, Manuel Morrens, Bernard G C Sabbe
BACKGROUND/AIMS: Major depressive disorder (MDD) is highly recurrent. This may be due to increased stress sensitivity after remission. Both inflammatory and psychosocial stressors are implicated in the pathogenesis of MDD, but the additive or differential effect is unclear. METHODS: We conducted a single-blind placebo-controlled study to investigate the effects of inflammatory stress (i.e., typhoid vaccination), psychosocial stress (i.e., Trier Social Stress Test [TSST]), or a combination of both in women (25-45 years old) with (partially) remitted recurrent MDD (n = 21) and healthy female controls (n = 18)...
April 27, 2017: Neuropsychobiology
https://www.readbyqxmd.com/read/28445856/procyanidin-a-kind-of-biological-flavonoid-induces-protective-anti-tumor-immunity-and-protects-mice-from-lethal-b16f10-challenge
#4
Lina Zhang, Shuang Wang, Zeyuan Liu, Li Zhang, Shanzheng Wang, Bin Wang
Recently, increasing evidences show that procyanidin (PC) modulate immune responses in human. To evaluate adjuvant effects of PC on vaccine immune modulation and anti-tumor activity, we formulated PC with B16F10 tumor antigen as tumor vaccine to immune C57BL/6 mice and used intramuscular injection before challenge with tumor B16F10 cells. Our results revealed that PC enhanced T cell-mediated immune responses both in vitro and in vivo. Moreover, the B16F10 tumor vaccine induced some degree of anti-tumor effects as evaluated by the inhibition of tumor growth and the prolongation of survival...
April 23, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28445704/development-of-standard-methods-for-zika-virus-propagation-titration-and-purification
#5
Sharton Vinicius Antunes Coelho, Rômulo Leão Silva Neris, Michelle Premazzi Papa, Laila Castro Schnellrath, Lana Monteiro Meuren, Diogo A Tschoeke, Luciana Leomil, Brunno Renato Farias Verçoza, Milene Miranda, Fabiano L Thompson, Andrea Thompson Da Poian, Thiago Moreno L Souza, Fabiana Avila Carneiro, Clarissa R Damaso, Iranaia Assunção-Miranda, Luciana Barros de Arruda
The emergence of Zika virus (ZIKV) infection has stimulated several research groups to study and collaborate to understand virus biology and pathogenesis. These efforts may assist with the development of antiviral drugs, vaccines and diagnostic tests, as well as to promote advancements in public health policies. Here, we aim to develop standard protocols for propagation, titration, and purification of Asian and Brazilian ZIKV strains, by systematically testing different cell types, kinetics, multiplicity of infection and centrifugation protocols...
April 23, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28445638/antigenic-gm3-lactone-mimetic-molecule-integrated-mannosylated-glycopeptide-nanofibers-for-the-activation-and-maturation-of-dendritic-cells
#6
Gokhan Gunay, Melis Sardan Ekiz, Xhenti Ferhati, Barbara Richichi, Cristina Nativi, Ayse Begum Tekinay, Mustafa O Guler
The ability of dendritic cells to coordinate innate and adaptive immune responses makes them essential targets for vaccination strategies. Presentation of specific antigens by dendritic cells is required for the activation of the immune system against many pathogens, and nanoscale materials can be functionalized for active targeting of dendritic cells. In this work, we integrated an immunogenic, carbohydrate melanoma-associated antigen-mimetic GM3-lactone molecule into mannosylated peptide amphiphile nanofibers to target dendritic cells through DC-SIGN receptor...
April 26, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28445612/influence-of-adjuvant-formulation-on-inducing-immune-response-in-mice-immunized-with-a-recombinant-serpin-from-trichinella-spiralis
#7
Jing Xu, Xue Bai, Libo Wang, Hai Ning Shi, Joke W B van der Giessen, Pascal Boireau, Ming Yuan Liu, Xiao Lei Liu
Nematodes of the genus Trichinella are one of the most widespread zoonotic pathogens on the world and they can still cause major public health problems in many parts of the world. Vaccination against the helminth nematode Trichinella could be a good strategy to reduce the risk of human and animal infection. It was our aim to evaluate three adjuvants, which could be used as an efficient vaccine for animals in combination with rTs-Serpin antigen. In this study, BALB/c mice were vaccinated by an intramuscular route with rTs-Serpin antigen from the parasite Trichinella spiralis in combination with three different adjuvant formulations: Montanide ISA201, Montanide IMS 1313 N PR VG and Freund's complete adjuvant / Freund's incomplete adjuvant (FCA/FIA)...
April 26, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28445250/enteric-fever-in-children-in-western-sydney-australia-2003-2015
#8
Ameneh Khatami, Fouzia Khan, Kristine K Macartney
BACKGROUND: Enteric fever is a vaccine-preventable disease with cases in Australia predominantly acquired overseas. The aim of this study was to define the burden of enteric fever in children presenting to a pediatric hospital in Western Sydney between 2003 and 2015. METHODS: Cases between January 2003 and December 2013 were ascertained through medical records using ICD-coded discharge diagnoses, cross-referenced with microbiology laboratory data for all isolates of Salmonella enterica serovar Typhi (S...
April 25, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28444974/school-based-surveillance-for-influenza-vaccine-effectiveness-during-2014-15-seasons-in-hong-kong
#9
Ting F Leung, Renee W Y Chan, Angela Kwok, Wendy C S Ho, Mars K P Tao, Kam L Hon, Frankie W T Cheng, Albert M Li, Paul K S Chan
BACKGROUND: Influenza imposes substantial healthcare burden in children, which can be prevented by vaccination. Influenza vaccination coverage varies widely among childhood populations worldwide, which has significant impact on herd immunity and usefulness of influenza vaccine. However, there is limited real-life data on influenza vaccine effectiveness (VE) in children. OBJECTIVE: This prospective study aimed to investigate clinical spectrum of childhood influenza and VE in preventing influenza in Hong Kong children...
April 26, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/28444973/in-depth-comparative-phenotyping-of-blood-innate-myeloid-leukocytes-from-healthy-humans-and-macaques-using-mass-cytometry
#10
Jamila Elhmouzi-Younes, Jean-Louis Palgen, Nicolas Tchitchek, Simon Delandre, Inana Namet, Caroline L Bodinham, Kathleen Pizzoferro, David J M Lewis, Roger Le Grand, Antonio Cosma, Anne-Sophie Beignon
Comparative immune-profiling of innate responses in humans and non-human primates is important to understand the pathogenesis of infectious and chronic inflammatory diseases as well as for the preclinical development of vaccines and immune therapies. However, direct comparisons of the two species are rare and were never performed using mass cytometry. Here, whole-blood-derived leukocytes from healthy humans and cynomolgus macaques were analyzed with mass cytometry. Two similar panels of around 30 monoclonal antibodies targeting human markers associated with innate myeloid cells to stain fixed human and macaque leukocytes were constructed...
April 26, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28444819/antenatal-maternal-hepatitis-b-care-is-a-predictor-of-timely-perinatal-administration-of-hepatitis-b-immunoglobulin
#11
Suong Tt Le, Lukas Sahhar, Stephanie Spring, William Sievert, Anouk T Dev
BACKGROUND: Mother-to-child transmission (MTCT) of hepatitis B virus continues to occur despite universal recommendations for neonatal immune prophylaxis therapy (IPT) and infant vaccination. AIM: To characterise the risk factors for failure to provide timely IPT and completion of the infant hepatitis B vaccination schedule for children born to mothers with Chronic Hepatitis B (CHB). METHODS: We conducted a retrospective cohort study to assess compliance with universal guidelines for neonatal IPT for children born to CHB mothers at Monash Health, Australia from 2008 to 2013...
April 26, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28444557/overview-on-the-current-status-of-zika-virus-pathogenesis-and-animal-related-research
#12
REVIEW
Shashank S Pawitwar, Supurna Dhar, Sneham Tiwari, Chet Raj Ojha, Jessica Lapierre, Kyle Martins, Alexandra Rodzinski, Tiyash Parira, Iru Paudel, Jiaojiao Li, Rajib Kumar Dutta, Monica R Silva, Ajeet Kaushik, Nazira El-Hage
There is growing evidence that Zika virus (ZIKV) infection is linked with activation of Guillan-Barré syndrome (GBS) in adults infected with the virus and microcephaly in infants following maternal infection. With the recent outpour in publications by numerous research labs, the association between microcephaly in newborns and ZIKV has become very apparent in which large numbers of viral particles were found in the central nervous tissue of an electively aborted microcephalic ZIKV-infected fetus. However, the underlying related mechanisms remain poorly understood...
April 25, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28444323/effectiveness-of-rotavirus-vaccination-a-systematic-review-of-the-first-decade-of-global-post-licensure-data-2006-2016
#13
Christine L Jonesteller, Eleanor Burnett, Catherine Yen, Jacqueline E Tate, Umesh D Parashar
Two rotavirus vaccines, Rotarix (RV1) and RotaTeq (RV5), were licensed for global use in 2006. A systematic review of 48 peer-reviewed articles with post-licensure data from 24 countries showed a median RV1 vaccine effectiveness (VE) of 84%, 75%, and 57% in low, medium, and high child mortality countries, respectively, and RV5 VE of 90% in low and 45% in high child mortality countries. A partial vaccine series provided considerable protection, but not to the same level as a full series. VE tended to decline in the second year of life, particularly in medium and high mortality settings, and tended to be greater against more severe rotavirus disease...
April 21, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28444299/environmental-factors-associated-with-disease-flare-in-juvenile-and-adult-dermatomyositis
#14
Gulnara Mamyrova, Lisa G Rider, Alison Ehrlich, Olcay Jones, Lauren M Pachman, Robert Nickeson, Lisa G Criscone-Schreiber, Lawrence K Jung, Frederick W Miller, James D Katz
Objective.: The aim was to assess environmental factors associated with disease flare in juvenile and adult dermatomyositis (DM). Methods.: An online survey of DM patients from the USA and Canada examined smoking, sun exposure, infections, medications, vaccines, stressful life events and physical activity during the 6 months before flares, or in the past 6 months in patients without flares. Differences were evaluated by χ 2 and Fisher's exact tests, and significant univariable results were examined in multivariable logistic regression...
April 21, 2017: Rheumatology
https://www.readbyqxmd.com/read/28444267/immunogenicity-of-2-vs-3-doses-of-the-quadrivalent-human-papillomavirus-vaccine-in-girls-aged-9-to-13-years-after-60-months
#15
Gina Ogilvie, Chantal Sauvageau, Marc Dionne, Shelly McNeil, Mel Krajden, Deborah Money, Simon Dobson
No abstract text is available yet for this article.
April 25, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28444240/non-specific-effects-of-oral-polio-vaccine-on-diarrheal-burden-and-etiology-among-bangladeshi-infants
#16
Alexander Upfill-Brown, Mami Taniuchi, James A Platts-Mills, Beth Kirkpatrick, Stacey L Burgess, M Steven Oberste, William Weldon, Eric Houpt, Rashidul Haque, K Zaman, William A Petri
Background: As the global polio eradication initiative prepares to cease use of oral polio vaccine (OPV) in 2020, there is increasing interest in understanding if oral vaccination provides non-specific immunity to other infections so that the consequences of this transition can be effectively planned for and mitigated. Methods: Data was collected from infants in an urban slum in Bangladesh (Mirpur, Dhaka) as part of the PROVIDE study. Following vaccination with tOPV at 6,10, and 14 weeks, infants were randomly assigned to receive tOPV (n=315) or IPV (n=299) at 39 weeks...
April 24, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28444226/evaluation-of-a-live-attenuated-human-metapneumovirus-vaccine-in-adults-and-children
#17
Ruth A Karron, Jocelyn San Mateo, Kimberli Wanionek, Peter L Collins, Ursula J Buchholz
We conducted a phase I clinical trial of an experimental live attenuated recombinant human metapneumovirus (HMPV) vaccine (rHMPV-Pa) sequentially in adults, HMPV-seropositive children, and HMPV-seronegative children, the target population for vaccination. rHMPV-Pa was appropriately restricted in replication in adults and HMPV-seropositive children but was overattenuated for HMPV-seronegative children.
April 21, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28444156/the-immunogenicity-of-fractional-intradermal-doses-of-the-inactivated-poliovirus-vaccine-is-associated-with-the-size-of-the-intradermal-fluid-bleb
#18
Jack Bibby, Yauba Saidu, Ama Umesi, Ngozi Moneke-Anyanwoke, Adedapo O Bashorun, Mariama Badjie Hydara, Ikechukwu Adigweme, Jane U Adetifa, Michael Okoye, Elishia Roberts, Ralf Clemens, Ananda S Bandyopadhyay, Abdul K Muhammad, Sarah Mulwa, Michael Royals, Courtney Jarrahian, Jeffries David, Beate Kampmann, Ed Clarke
The immunogenicity of fractional (1/5th, 0.1mL) intradermal doses of the inactivated poliovirus vaccine (ID fIPV) is positively correlated with the size of the intradermal fluid bleb. Training of vaccinators for campaign and routine ID fIPV administration should focus on generating an 8 to 10mm bleb with each injection.
April 21, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28444127/hla-class-i-binding-prediction-via-convolutional-neural-networks
#19
Yeeleng S Vang, Xiaohui Xie
Motivation: Many biological processes are governed by protein-ligand interactions. One such example is the recognition of self and nonself cells by the immune system. This immune response process is regulated by the major histocompatibility complex (MHC) protein which is encoded by the human leukocyte antigen (HLA) complex. Understanding the binding potential between MHC and peptides can lead to the design of more potent, peptide-based vaccines and immunotherapies for infectious autoimmune diseases...
April 21, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28444003/species-abundance-and-temporal-variation-of-arbovirus-vectors-in-brownsville-texas
#20
Krithika Srinivasan, Beatriz Tapia, Arturo Rodriguez, Robert Wood, Jennifer J Salinas
The recent outbreaks of the dengue fever and West Nile viruses and the looming threats of the Zika and chikungunya viruses highlight the importance of establishing effective, proactive arboviral surveillance in communities at high risk of transmission, such as those on the Texas-Mexico border. Currently, there are no approved human vaccines available for these mosquito-borne diseases, so entomological control and case management are the only known methods for decreasing disease incidence. The principal vectors, which include Culex quinquefasciatus, Aedes aegypti, and Ae...
April 20, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
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