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Expert Review of Vaccines

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https://www.readbyqxmd.com/read/28447884/do-micrornas-play-a-role-in-the-activity-of-plant-based-vaccines
#1
Sergio Rosales-Mendoza, Jorge A Salazar-González
An important trend in vaccinology is the development of oral vaccines based on genetically modified plants. Areas covered: Several studies have suggested that dietary microRNAs from plants and other organisms are bioavailable upon oral ingestion exerting biological events in the host such as the modulation of gene expression in several cell types. Since oral plant-based vaccines rely on whole cells as vaccine delivery vehicles, miRNAs could play a role in the immunogenic activity of this type of vaccine. In the present report, this hypothesis is discussed under the light of recent evidence on the immunomodulatory activity exerted by miRNAs using in vitro and in vivo evaluations...
April 27, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28447498/regulating-vaccines-at-the-fda-development-and-licensure-of-zika-vaccines
#2
Marion F Gruber, Philip R Krause
No abstract text is available yet for this article.
April 27, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28447476/mtbvac-from-discovery-to-clinical-trials-in-tuberculosis-endemic-countries
#3
Dessislava Marinova, Jesus Gonzalo-Asensio, Nacho Aguilo, Carlos Martin
BCG remains the only vaccine against tuberculosis (TB) in use today and despite its impressive global coverage, the nature of BCG protection against the pulmonary forms of TB remains subject to ongoing debate. Because of the limitations of BCG, novel TB vaccine candidates have been developed and several have reached the clinical pipeline. One of these candidates is MTBVAC, the first and only TB vaccine in the clinical pipeline to date based on live-attenuated Mycobacterium tuberculosis that has successfully entered clinical evaluation, a historic milestone in human vaccinology...
April 27, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28437234/poliovirus-vaccination-during-the-endgame-insights-from-integrated-modeling
#4
Radboud J Duintjer Tebbens, Kimberly M Thompson
Managing the polio endgame requires access to sufficient quantities of poliovirus vaccines. After oral poliovirus vaccine (OPV) cessation, outbreaks may occur that require outbreak response using monovalent OPV (mOPV) and/or inactivated poliovirus vaccine. Areas covered: We review the experience and challenges with managing vaccine supplies in the context of the polio endgame. Building on models that explored polio endgame risks and the potential mOPV needs to stop outbreaks from live poliovirus reintroductions, we conceptually explore the potential demands for finished and bulk mOPV doses from a stockpile in the context of limited shelf-life of finished vaccine and time delays to convert bulk to finished vaccine...
April 24, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28434376/pre-clinical-and-clinical-development-of-the-first-placental-malaria-vaccine
#5
Caroline Pehrson, Ali Salanti, Thor G Theander, Morten A Nielsen
Malaria during pregnancy is a massive health problem in endemic areas. Placental malaria infections caused by Plasmodium falciparum are responsible for up to one million babies being born with a low birth weight every year. Significant efforts have been invested into preventing the condition. Areas covered: Pub Med was searched using the broad terms "malaria parasite placenta" to identify studies of interactions between parasite and host, "prevention of placental malaria" to identify current strategies to prevent placental malaria, and "placental malaria vaccine" to identify pre-clinical vaccine development...
April 24, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28434256/a-bioinformatics-roadmap-for-the-human-vaccines-project
#6
Richard H Scheuermann, Robert S Sinkovits, Theodore Schenkelberg, Wayne C Koff
Biomedical research has become a data intensive science in which high throughput experimentation is producing comprehensive data about biological systems at an ever-increasing pace. The Human Vaccines Project is a new public-private partnership, with the goal of accelerating development of improved vaccines and immunotherapies for global infectious diseases and cancers by decoding the human immune system. To achieve its mission, the Project is developing a Bioinformatics Hub as an open-source, multidisciplinary effort with the overarching goal of providing an enabling infrastructure to support the data processing, analysis and knowledge extraction procedures required to translate high throughput, high complexity human immunology research data into biomedical knowledge, to determine the core principles driving specific and durable protective immune responses...
April 24, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28431490/new-challenges-in-therapeutic-vaccines-against-hiv-infection
#7
Lorna Leal, Constanza Lucero, Josep M Gatell, Teresa Gallart, Montserrat Plana, Felipe García
There is a growing interest in developing curative strategies for HIV infection. Therapeutic vaccines are one of the most promising approaches. We will review the current knowledge and the new challenges in this research field. Areas covered: PubMed and ClinicalTrial.gov databases were searched to review the progress and prospects for clinical development of immunotherapies aimed to cure HIV infection. Dendritic cells (DC)-based vaccines have yielded the best results in the field. However, major immune-virologic barriers may hamper current vaccine strategies...
April 21, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28425834/rift-valley-fever-vaccines-an-overview-of-the-safety-and-efficacy-of-the-live-attenuated-mp-12-vaccine-candidate
#8
Tetsuro Ikegami
Rift Valley fever (RVF) is a mosquito-borne zoonotic viral disease endemic to Africa and the Arabian Peninsula. High rates of abortion among infected ruminants and hemorrhagic fever in infected humans are major public health concerns. Commercially available veterinary RVF vaccines are important for preventing the spread of the Rift Valley fever virus (RVFV) in endemic countries; however, RVFV outbreaks continue to occur frequently in endemic countries in the 21(st) century. In the U.S., the live-attenuated MP-12 vaccine has been developed for both animal and human vaccination...
April 20, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28425818/immunization-with-10-valent-pneumococcal-non-typeable-haemophilus-influenzae-protein-d-conjugate-vaccine-phid-cv-according-to-different-schedules-in-infants-in-south-africa-a-phase-iii-trial
#9
Shabir A Madhi, Anthonet Koen, Lisa Jose, Marta Moreira, Nadia van Niekerk, Clare Cutland, Nancy François, Javier Ruiz-Guiñazú, Juan Pablo Yarzabal, Dorota Borys, Lode Schuerman
BACKGROUND: Limited clinical data exists to assess differences between various infant pneumococcal conjugate vaccine schedules. In this trial, we evaluated immunogenicity of the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (phid-cv) administered using 3 different immunization schedules in HIV unexposed-uninfected infants in South Africa. RESEARCH DESIGN AND METHODS: In this phase iii, open, single-center, controlled study (clinicaltrials...
April 20, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28409537/impact-of-pneumococcal-conjugate-vaccines-for-children-in-high-and-non-high-income-countries
#10
Robert Cohen, Jérémie François Cohen, Martin Chalumeau, Corinne Levy
The high level of effectiveness of pneumococcal conjugate vaccines (PCVs) was demonstrated initially in high-income countries (HICs). However, because the burden of pneumococcal diseases (PDs) is greater in non-high-income countries (NHICs) than HICs, the assessment of these vaccines in this latter setting is crucial. Areas Covered: PubMed was used to search for literature related to the effectiveness of PCVs. Several studies described the effectiveness of PCVs in NHICs, and we compare the impact of PCVs on the incidence of invasive pneumococcal disease (IPD) and pneumonia in HICs and NHICs...
April 14, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28322076/closer-than-ever-to-an-ebola-virus-vaccine
#11
Logan Banadyga, Andrea Marzi
No abstract text is available yet for this article.
April 3, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28375029/emerging-experience-with-meningococcal-serogroup-b-protein-vaccines
#12
REVIEW
Daniela Toneatto, Mariagrazia Pizza, Vega Masignani, Rino Rappuoli
The successful development of two broadly protective vaccines targeting Neisseria meningitidis serogroup B (MenB); 4CMenB and rLP2086, is the most significant recent advance in meningococcal disease prevention. Areas covered: Here we review the principles underlying the development of each vaccine and the novel methods used to estimate vaccine coverage. We update clinical and post-licensure experience with 4CMenB and rLP2086. Expert commentary: The immunogenicity and acceptable safety profile of 4CMenB and rLP2086 has been demonstrated in clinical trials...
May 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28359176/old-world-cutaneous-leishmaniasis-challenges-in-morocco-algeria-tunisia-and-iran-mati-a-collaborative-attempt-to-combat-the-disease
#13
Fariborz Bahrami, Gerald F Späth, Sima Rafati
Cutaneous leishmaniasis (CL) is a main public health problem in Morocco, Algeria, Tunisia and Iran, known as the MATI region. During the biennial meeting of Pasteur Institutes of the MATI region in November 2016 in Tehran, a Leishmania panel formed of scientists with different expertise in CL research from the MATI and Institut Pasteur in Paris, proposed a new consortium to develop an integrative research approach to better understand this disease. The proposed consortium synergizes three complementary thematics on Leishmania genetics, host immune response, and vector transmission...
May 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28351187/pneumococcal-conjugate-vaccine-in-hiv-infected-and-hiv-exposed-uninfected-children
#14
REVIEW
Sabelle Jallow, Shabir A Madhi
Incidence of invasive pneumococcal disease (IPD) among HIV-infected children is 20-40 fold greater compared to HIV-uninfected children, including among HIV-infected children on antiretroviral therapy (ART). Also, HIV-exposed, uninfected children have 2.7-fold greater risk of IPD compared to HIV-unexposed children. Areas covered: We reviewed studies identified on Pubmed database with the terms 'PCV' and 'HIV'; studies involving adults only were excluded. Expert commentary: While ART and pneumococcal conjugate vaccines (PCV) have reduced IPD morbidity and mortality in HIV-infected children, ART-naïve and immunosuppressed children have inferior immunogenicity to most PCV serotypes; highlighting the need for concomitant use of ART with PCV...
May 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28290225/influence-of-protein-fold-stability-on-immunogenicity-and-its-implications-for-vaccine-design
#15
REVIEW
Sandra Scheiblhofer, Josef Laimer, Yoan Machado, Richard Weiss, Josef Thalhamer
In modern vaccinology and immunotherapy, recombinant proteins more and more replace whole organisms to induce protective or curative immune responses. Structural stability of proteins is of crucial importance for efficient presentation of antigenic peptides on MHC, which plays a decisive role for triggering strong immune reactions. Areas covered: In this review, we discuss structural stability as a key factor for modulating the potency of recombinant vaccines and its importance for antigen proteolysis, presentation, and stimulation of B and T cells...
May 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28285554/an-overview-of-adjuvants-utilized-in-prophylactic-vaccine-formulation-as-immunomodulators
#16
REVIEW
Nidhi Chauhan, Sukirti Tiwari, Tessy Iype, Utkarsh Jain
Development of efficient and cost effective vaccines have been recognized as the primary concern to improve the overall healthcare in a country. In order to achieve this goal, more improved and powerful adjuvants need to be developed. Lacking in the self-adjuvanting immuno-modulatory constituents, vaccines exhibit lower immunogenicity. Combining potent adjuvants with vaccines is the most appropriate method to enhance the efficacy of the vaccines. Hence, this review is focussed on the most potent adjuvants for the formulation of vaccines...
May 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28277801/the-immunogenicity-and-safety-of-a-hib-menac-vaccine-a-non-inferiority-randomized-observer-blind-trial-in-infants-aged-3-5-months
#17
RANDOMIZED CONTROLLED TRIAL
Yu-Xiao Wang, Hong Tao, Jian-Li Hu, Jing-Xin Li, Wei-Ming Dai, Jin-Fang Sun, Pei Liu, Jie Tang, Wen-Yu Liu, Feng-Cai Zhu
BACKGROUND: The objective of this study was to evaluate the immunogenicity and safety of the novel combined Haemophilus influenzae type b-Neisseria meningitidis serogroup A and C-tetanus toxoid conjugate vaccine (Hib-MenAC). METHODS: We conducted a non-inferiority, randomized, observer-blind, positive control clinical trial in 900 healthy infants aged between 3-5 months in Funing County, Jiangsu Province, China. Participants were randomly allocated, in a ratio of 2:1 (block = 6), to receive experimental combined Hib-MenAC vaccines co-administrated with placebo or the co-administration of licensed Hib vaccine and MenAC vaccine, according to a three-dose immunization schedule...
May 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28277797/strategies-to-induce-broadly-protective-antibody-responses-to-viral-glycoproteins
#18
REVIEW
F Krammer
Currently, several universal/broadly protective influenza virus vaccine candidates are under development. Many of these vaccines are based on strategies to induce protective antibody responses against the surface glycoproteins of antigenically and genetically diverse influenza viruses. These strategies might also be applicable to surface glycoproteins of a broad range of other important viral pathogens. Areas covered: Common strategies include sequential vaccination with divergent antigens, multivalent approaches, vaccination with glycan-modified antigens, vaccination with minimal antigens and vaccination with antigens that have centralized/optimized sequences...
May 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28277098/barriers-and-motivations-to-volunteers-participation-in-preventive-vaccine-trials-a-systematic-review
#19
REVIEW
M Detoc, A Gagneux-Brunon, F Lucht, E Botelho-Nevers
The recruitment of volunteers in preventive vaccine trials (PVT) is a challenge, since vaccine hesitancy and debates on vaccines are combined to usual difficulties of enrollment in clinical trials. Areas covered: Current knowledge of the reasons leading to the volunteers' participation or non-participation in PVT mainly focuses on data from preventive HIV vaccine trials. A systematic PubMed search was conducted using PRISMA guidelines to identify articles or reviews that reported barriers and motivations to participation in PVT regardless of the targeted disease or population...
May 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28277097/towards-functional-antibody-based-vaccines-to-prevent-pre-erythrocytic-malaria-infection
#20
REVIEW
Brandon Sack, Stefan H I Kappe, D Noah Sather
An effective malaria vaccine would be considered a milestone of modern medicine, yet has so far eluded research and development efforts. This can be attributed to the extreme complexity of the malaria parasites, presenting with a multi-stage life cycle, high genome complexity and the parasite's sophisticated immune evasion measures, particularly antigenic variation during pathogenic blood stage infection. However, the pre-erythrocytic (PE) early infection forms of the parasite exhibit relatively invariant proteomes, and are attractive vaccine targets as they offer multiple points of immune system attack...
May 2017: Expert Review of Vaccines
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