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https://www.readbyqxmd.com/read/29759377/diagnostic-diva-tests-accompanying-the-disabled-infectious-single-animal-disa-vaccine-platform-for-african-horse-sickness
#1
Piet A van Rijn, Mieke A Maris-Veldhuis, Jan Boonstra, René G P van Gennip
African Horse Sickness Virus (AHSV) (Orbivirus genus, Reoviridae family) causes high mortality in naïve domestic horses with enormous economic and socio-emotional impact. There are nine AHSV serotypes showing limited cross neutralization. AHSV is transmitted by competent species of Culicoides biting midges. AHS is a serious threat beyond the African continent as endemic Culicoides species in moderate climates transmit the closely related prototype bluetongue virus. There is a desperate need for safe and efficacious vaccines, while DIVA (Differentiating Infected from Vaccinated) vaccines would accelerate control of AHS...
May 11, 2018: Vaccine
https://www.readbyqxmd.com/read/29757990/tick-paralysis-solving-an-enigma
#2
REVIEW
Ronel Pienaar, Albert W H Neitz, Ben J Mans
In comparison to other arachnids, ticks are major vectors of disease, but less than 8% of the known species are capable of inducing paralysis, as compared to the ~99⁻100% arachnids that belong to venomous classes. When considering the potential monophyly of venomous Arachnida, this review reflects on the implications regarding the classification of ticks as venomous animals and the possible origin of toxins. The origin of tick toxins is compared with scorpion and spider toxins and venoms based on their significance, functionality, and structure in the search to find homologous venomous characters...
May 14, 2018: Veterinary Sciences
https://www.readbyqxmd.com/read/29753164/a-novel-approach-of-virulome-based-reverse-vaccinology-for-exploring-and-validating-peptide-based-vaccine-candidates-against-the-most-troublesome-nosocomial-pathogen-acinetobacter-baumannii
#3
Sajjad Ahmad, Syed Sikander Azam
Acinetobacter baumannii is one of the major cause of nosocomial infections around the globe. The emergence of hyper-virulent strains of the pathogen greatly narrows down therapeutic options for patients infected with this red alert superbug. Development of a peptide-based vaccine can offers an alternative, attractive, and cost-effective remedy for multidrug-resistant A. baumannii associated complications. Herein, we introduced a novel virulome based Reverse Vaccinology for screening peptide based vaccine candidates against A...
May 5, 2018: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/29751486/current-strategies-for-inhibition-of-chikungunya-infection
#4
REVIEW
Bharat Bhusan Subudhi, Soma Chattopadhyay, Priyadarsee Mishra, Abhishek Kumar
Increasing incidences of Chikungunya virus (CHIKV) infection and co-infections with Dengue/Zika virus have highlighted the urgency for CHIKV management. Failure in developing effective vaccines or specific antivirals has fuelled further research. This review discusses updated strategies of CHIKV inhibition and provides possible future directions. In addition, it analyzes advances in CHIKV lifecycle, drug-target development, and potential hits obtained by in silico and experimental methods. Molecules identified with anti-CHIKV properties using traditional/rational drug design and their potential to succeed in subsequent stages of drug development have also been discussed...
May 3, 2018: Viruses
https://www.readbyqxmd.com/read/29746872/the-contribution-of-the-dna-microarray-technology-to-gene-expression-profiling-in-leishmania-spp-a-retrospective
#5
REVIEW
Ana Alonso, Vicente Larraga, Pedro J Alcolea
The first genome project of any living organism excluding viruses, the gammaproteobacteria Haemophilus influenzae, was completed in 1995. Until the last decade, genome sequencing was very tedious because genome survey sequences (GSS) and/or expressed sequence tags (ESTs) belonging to plasmid, cosmid and artificial chromosome genome libraries had to be sequenced and assembled in silico. Nowadays, no genome is completely assembled actually, because gaps and unassembled contigs are always remaining. However, most represent the whole genome of the organism of origin from a practical point of view...
May 7, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29730308/in-vitro-and-in-silico-studies-reveal-capsid-mutant-porcine-circovirus-2b-with-novel-cytopathogenic-and-structural-characteristics
#6
Taís Fukuta Cruz, Angelo José Magro, Alessandra M M G de Castro, Francisco J Pedraza-Ordoñez, Miriam Harumi Tsunemi, David Perahia, João Pessoa Araújo
Porcine circovirus 2 (PCV2) is an icosahedral, non-enveloped, and single-stranded circular DNA virus that belongs to the family Circoviridae, genus Circovirus, and is responsible for a complex of different diseases defined as porcine circovirus diseases (PCVDs). These diseases - including postweaning multisystemic wasting syndrome (PMWS), enteric disease, respiratory disease, porcine dermatitis and nephropathy syndrome (PDNS), and reproductive failure - are responsible for large economic losses in the pig industry...
May 3, 2018: Virus Research
https://www.readbyqxmd.com/read/29728336/evaluation-of-the-protective-efficacy-of-ornithodoros-moubata-midgut-membrane-antigens-selected-using-omics-and-in-silico-prediction-algorithms
#7
Prosper Obolo-Mvoulouga, Ana Oleaga, Raúl Manzano-Román, Ricardo Pérez-Sánchez
The African argasid tick Ornithodoros moubata transmits two important pathogens, the African swine fever virus and the spirochete Borrelia duttoni, the cause of human relapsing fever. To date, only conventional control measures such as widespread application of acaricides, strict control measures, and animal movement restrictions have been implemented to confine these diseases. Vaccines against tick infestations have the potential to be among the most efficacious interventions for the management of these diseases...
April 30, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29725106/investigation-of-immunogenic-properties-of-hemolin-from-silkworm-bombyx-mori-as-carrier-protein-an-immunoinformatic-approach
#8
Veeranarayanan Surya Aathmanathan, Nattarsingam Jothi, Vijay Kumar Prajapati, Muthukalingan Krishnan
Infectious diseases are the major cause of high mortality among infants and geriatric patients. Vaccines are the only weapon in our arsenal to defend us ourselves against innumerable infectious diseases. Though myriad of vaccines are available, still countless people die due to microbial infections. Subunit vaccine is an effective strategy of vaccine development, combining a highly immunogenic carrier protein with highly antigenic but non-immunogenic antigen (haptens). In this study we have made an attempt to utilize the immunoinformatic tool for carrier protein development...
May 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29724463/analysis-of-epitope-based-vaccine-candidates-against-the-e-antigen-of-the-hepatitis-b-virus-based-on-the-b-genotype-sequence-an-in-silico-and-in-vitro-approach
#9
Juzeng Zheng, Zhanfan Ou, Xianfan Lin, Lingling Wang, Yang Liu, Sisi Jin, Jinming Wu
Chronic hepatitis B virus infection is a worldwide health problem with no current effective strategy to achieve a cure. The Hepatitis B virus (HBV) E antigen (HBeAg) has a negative effect on the immune system and a therapeutic vaccine is a promising strategy in order to treat chronic virus infection. In this study, we analyzed and identified the MHC-I, MHC-II and B cell epitopes of the HBeAg based on a B genotype sequence of HBV using a bioinformatic approach and in vitro experiments. The computational approach provided us with four epitopes (LLWFHISCL, YLVSFGVWI, MQLFHLCLI, TVLEYLVSF) of the specific MHC-I allele HLA-A0201 that conformed to all criteria...
April 30, 2018: Cellular Immunology
https://www.readbyqxmd.com/read/29713601/a-novel-b-and-helper-t-cell-epitopes-based-prophylactic-vaccine-against-echinococcus-granulosus
#10
Mohammad M Pourseif, Gholamali Moghaddam, Hossein Daghighkia, Ahmad Nematollahi, Yadollah Omidi
Introduction: In this study, we targeted the worm stage of Echinococcus granulosus to design a novel multi-epitope B- and helper T-cell based vaccine construct for immunization of dogs against this multi-host parasite. Methods: The vaccine was designed based on the local Eg14-3-3 antigen (Ag). DNA samples were extracted from the protoscoleces of the infected sheep's liver, and then subjected to the polymerase chain reaction (PCR) with 14-3-3 specific forward and reverse primers. For the vaccine designing, several in silico steps were undertaken...
2018: BioImpacts: BI
https://www.readbyqxmd.com/read/29692282/identification-of-novel-therapeutic-candidates-in-cryptosporidium-parvum-an-in-silico-approach
#11
Chinmaya Panda, Rajani Kanta Mahapatra
Unavailability of vaccines and effective drugs are primarily responsible for the growing menace of cryptosporidiosis. This study has incorporated a bioinformatics-based screening approach to explore potential vaccine candidates and novel drug targets in Cryptosporidium parvum proteome. A systematic strategy was defined for comparative genomics, orthology with related Cryptosporidium species, prioritization parameters and MHC class I and II binding promiscuity. The approach reported cytoplasmic protein cgd7_1830, a signal peptide protein, as a novel drug target...
April 25, 2018: Parasitology
https://www.readbyqxmd.com/read/29680238/in-silico-tools-and-databases-for-designing-peptide-based-vaccine-and-drugs
#12
Salman Sadullah Usmani, Rajesh Kumar, Sherry Bhalla, Vinod Kumar, Gajendra P S Raghava
The prolonged conventional approaches of drug screening and vaccine designing prerequisite patience, vigorous effort, outrageous cost as well as additional manpower. Screening and experimentally validating thousands of molecules for a specific therapeutic property never proved to be an easy task. Similarly, traditional way of vaccination includes administration of either whole or attenuated pathogen, which raises toxicity and safety issues. Emergence of sequencing and recombinant DNA technology led to the epitope-based advanced vaccination concept, i...
2018: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/29678234/antibodies-to-in-silico-selected-gpi-anchored-theileria-parva-proteins-neutralize-sporozoite-infection-in-vitro
#13
James Nyagwange, Vishvanath Nene, Stephen Mwalimu, Sonal Henson, Lucilla Steinaa, Benjamin Nzau, Edwin Tijhaar, Roger Pelle
East Coast fever (ECF) caused by Theileria parva kills cattle in East, Central and Southern Africa leading to significant economic losses. Vaccination is used as a control strategy against ECF and is presently dependent on deliberate infection with live sporozoites and simultaneous treatment with a long-acting oxytetracycline. Although effective, this method has serious limitations; the immunity is parasite strain specific and immunized cattle can become life-long asymptomatic carriers of the parasite, posing risk for the spread of the disease...
May 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29675401/analysis-of-the-antigenic-and-prophylactic-properties-of-the-leishmania-translation-initiation-factors-eif2-and-eif2b-in-natural-and-experimental-leishmaniasis
#14
Esther Garde, Laura Ramírez, Laura Corvo, José C Solana, M Elena Martín, Víctor M González, Carlos Gómez-Nieto, Aldina Barral, Manoel Barral-Netto, José M Requena, Salvador Iborra, Manuel Soto
Different members of intracellular protein families are recognized by the immune system of the vertebrate host infected by parasites of the genus Leishmania . Here, we have analyzed the antigenic and immunogenic properties of the Leishmania eIF2 and eIF2B translation initiation factors. An in silico search in Leishmania infantum sequence databases allowed the identification of the genes encoding the α, β, and γ subunits and the α, β, and δ subunits of the putative Leishmania orthologs of the eukaryotic initiation factors F2 (LieIF2) or F2B (LieIF2B), respectively...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29669837/amino-acid-substitutions-within-hla-b-27-restricted-t-cell-epitopes-prevent-recognition-by-hepatitis-delta-virus-specific-cd8-t-cells
#15
Hadi Karimzadeh, Muthamia M Kiraithe, Anna D Kosinska, Manuel Glaser, Melanie Fiedler, Valerie Oberhardt, Elahe Salimi Alizei, Maike Hofmann, Juk Yee Mok, Melanie Nguyen, Wim J E van Esch, Bettina Budeus, Jan Grabowski, Maria Homs, Antonella Olivero, Hossein Keyvani, Francisco Rodríguez-Frías, David Tabernero, Maria Buti, Andreas Heinold, Seyed Moayed Alavian, Tanja Bauer, Julian Schulze Zur Wiesch, Bijan Raziorrouh, Daniel Hoffmann, Antonina Smedile, Mario Rizzetto, Heiner Wedemeyer, Jörg Timm, Iris Antes, Christoph Neumann-Haefelin, Ulrike Protzer, Michael Roggendorf
Virus-specific CD8 T-cell response seems to play a significant role in the outcome of hepatitis delta virus (HDV) infection. However, the HDV-specific T-cell epitope repertoire and mechanisms of CD8 T-cell failure in HDV infection have merely been characterized. We therefore aimed to characterize HDV-specific CD8 T cell epitopes and the impact of viral mutations on immune escape. In this study, we predicted peptide epitopes binding the most frequent HLA types and assessed their HLA binding capacity. These epitopes were characterized in HDV-infected patients by intracellular IFN-γ staining...
April 18, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29621602/neutrophil-extracellular-traps-possess-anti-human-respiratory-syncytial-virus-activity-possible-interaction-with-the-viral-f-protein
#16
Priscila Silva Sampaio Souza, Lia Vezenfard Barbosa, Larissa Figueiredo Alves Diniz, Gabriel Soares da Silva, Bruno Rafael Pereira Lopes, Pedro Miyadaira Ribeiro Souza, Gabriela Campos de Araujo, Diogo Pessoa, Juliana de Oliveira, Fátima Pereira Souza, Karina Alves Toledo
Human respiratory syncytial virus (hRSV) is one of the main etiological agents of diseases of the lower respiratory tract, and is often responsible for the hospitalization of children and the elderly. To date, treatments are only palliative and there is no vaccine available. The airways of patients infected with hRSV exhibit intense neutrophil infiltration, which is responsible for the release of neutrophil extracellular traps (NETs). These are extracellular structures consisting of DNA associated with intracellular proteins, and are efficient in capturing and eliminating various microorganisms, including some viruses...
April 2, 2018: Virus Research
https://www.readbyqxmd.com/read/29603667/a-targeted-lc-ms-strategy-for-low-abundant-hla-class-i-presented-peptide-detection-identifies-novel-human-papillomavirus-t-cell-epitopes
#17
Renata Blatnik, Nitya Mohan, Maria Bonsack, Lasse G Falkenby, Stephanie Hoppe, Kathrin Josef, Alina Steinbach, Sara Becker, Wiebke M Nadler, Marijana Rucevic, Martin R Larsen, Mogjiborahman Salek, Angelika B Riemer
For rational design of therapeutic vaccines, detailed knowledge about target epitopes that are endogenously processed and truly presented on infected or transformed cells is essential. Many potential target epitopes, either of viral origin or mutation-derived, are presented at low abundance. Therefore, direct detection of these peptides remains a challenge. This study presents a method for the isolation and LC-MS3 -based targeted detection of low-abundant HLA class-I presented peptides from transformed cells...
March 30, 2018: Proteomics
https://www.readbyqxmd.com/read/29590172/complementation-of-the-mycoplasma-synoviae-ms-h-vaccine-strain-with-wild-type-obg-influencing-its-growth-characteristics
#18
Muhammad A Shahid, Marc S Marenda, Philip F Markham, Amir H Noormohammadi
The temperature-sensitive (ts+) Mycoplasma synoviae vaccine strain MS-H harbors a non-synonymous mutation which results in Glycine to Arginine substitution at position 123 in the highly conserved glycine-rich motif of Obg-fold in the GTP-binding protein Obg. In-silico analysis of the wild-type and mutant Obgs of M. synoviae has indicated that this amino acid substitution affects structure of the protein, potentially leading to abrogation of Obg function in vivo. Present study was conducted to develop the first expression vector for M...
2018: PloS One
https://www.readbyqxmd.com/read/29583121/a-quinoline-compound-inhibits-the-replication-of-dengue-virus-serotypes-1-4-in-vero-cells
#19
Hemalatha Beesetti, Poornima Tyagi, Brahmam Medapi, Vagolu Siva Krishna, Dharmarajan Sriram, Navin Khanna, Sathyamangalam Swaminathan
BACKGROUND: The global occurrence of dengue, a mosquito-borne viral disease caused by four distinct dengue viruses (DENV-1, -2, -3 and -4), is reported to have increased ~30-fold in the last fifty years, causing ~400 million infections a year. A limited use, sub-optimal live attenuated dengue vaccine has become available recently. It is becoming apparent that antibodies to DENVs can promote infection by Zika virus (ZIKV), a related mosquito-borne flavivirus. A drug to treat these flaviviral infections continues to be an unmet public health need...
March 27, 2018: Antiviral Therapy
https://www.readbyqxmd.com/read/29571972/immunoinformatics-approaches-to-design-a-novel-multi-epitope-subunit-vaccine-against-hiv-infection
#20
Rajan Kumar Pandey, Rupal Ojha, Veeranarayanan Surya Aathmanathan, Muthukalingan Krishnan, Vijay Kumar Prajapati
The end goal of HIV vaccine designing requires novel strategies to elicit a strong humoral and cell-mediated immune response. The emergence of drug resistance and the requirement of next line treatment necessitate the finding of the potential and immunogenic vaccine candidate. This study employed a novel immunoinformatics approach to design multi-epitope subunit vaccine against HIV infection. Here, we designed the subunit vaccine by the combination of CTL, HTL and BCL epitopes along with suitable adjuvant and linkers...
March 20, 2018: Vaccine
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