keyword
MENU ▼
Read by QxMD icon Read
search

heterologous immunity

keyword
https://www.readbyqxmd.com/read/27902386/establishment-of-memory-cd8-t-cells-with-live-attenuated-influenza-virus-laiv-across-different-vaccination-doses
#1
Zhongfang Wang, Lukasz Kedzierska, Simone Nuessing, Brendon Chua, Sergio M Quiñones-Parra, Victor C Huber, David Jackson, Paul G Thomas, Katherine Kedzierska
FluMist has been used in children and adults for more than ten years. As pre-existing CD8+ T-cell memory pools can provide heterologous immunity against distinct influenza viruses, it is important to understand influenza-specific CD8+ T-cell responses elicited by different LAIV regimens. In this study, we immunized mice intranasally (i.n.) with two different doses of live-attenuated PR8 virus (PR8 ts, H1N1), low and high, and then assessed protective efficacy by challenging animals with heterosubtypic X31-H3N2 virus at 6 weeks post-vaccination...
November 2, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27899535/a-tomato-universal-stress-protein-involved-in-oxidative-stress-is-a-cipk6-phosphorylation-target
#2
Emilio Gutierrez-Beltran, José María Personat, Fernando N de la Torre, Olga Del Pozo
Calcineurin B-like interacting protein kinases (CIPKs) decode calcium signals upon interaction with the calcium sensors calcineurin B like proteins (CBLs) into phosphorylation events that result into adaptation to environmental stresses. Few phosphorylation targets of CIPKs are known and therefore the molecular mechanisms underlying their downstream output responses are not fully understood. Tomato (Solanum lycopersicum) Cipk6 regulates immune and susceptible Programmed cell death (PCD) in immunity transforming Ca2+ signals into Reactive Oxygen Species (ROS) signaling...
November 29, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27895225/loss-of-inositol-phosphorylceramide-sphingolipid-mannosylation-induces-plant-immune-responses-and-reduces-cellulose-content-in-arabidopsis
#3
Lin Fang, Toshiki Ishikawa, Emilie A Rennie, Gosia M Murawska, Jeemeng Lao, Jingwei Yan, Alex Yl Tsai, Edward E K Baidoo, Jun Xu, Jay D Keasling, Taku Demura, Maki Kawai-Yamada, Henrik Vibe Scheller, Jenny C Mortimer
Glycosylinositol phosphorylceramides (GIPCs) are a class of glycosylated sphingolipids found in plants, fungi, and protozoa. These lipids are abundant in the plant plasma membrane, forming ~25% of total plasma membrane lipids. Little is known about the function of the glycosylated headgroup, but two recent studies have indicated that they play a key role in plant signaling and defense. Here, we show that a member of glycosyltransferase (GT) family 64, previously named ECTOPICALLY PARTING CELLS1 (EPC1), is likely a Golgi-localized GIPC-specific mannosyl-transferase, which we renamed GIPC MANNOSYL-TRANSFERASE1 (GMT1)...
November 28, 2016: Plant Cell
https://www.readbyqxmd.com/read/27894718/chlamydia-suis-and-chlamydia-trachomatis-induce-multifunctional-cd4-t-cells-in-pigs
#4
T Käser, J A Pasternak, M Delgado-Ortega, G Hamonic, K Lai, J Erickson, S Walker, J R Dillon, V Gerdts, F Meurens
Chlamydia trachomatis infections are the most prominent bacterial sexually-transmitted disease world-wide and a lot of effort is put into the development of an effective vaccine. Pigs have been shown to be a valuable animal model for C. trachomatis vaccine development. The aim of this study was to decipher the T-cell-mediated immune response to chlamydial infections including C. trachomatis and C. suis, the chlamydia species naturally infecting pigs with a demonstrated zoonotic potential. Vaginal infection of pigs with C...
November 25, 2016: Vaccine
https://www.readbyqxmd.com/read/27892924/the-pattern-recognition-receptor-core-of-solanaceae-detects-bacterial-cold-shock-protein
#5
Lei Wang, Markus Albert, Elias Einig, Ursula Fürst, Damaris Krust, Georg Felix
Plants and animals recognize microbial invaders by detecting microbe-associated molecular patterns (MAMPs) by cell surface receptors. Many plant species of the Solanaceae family detect the highly conserved nucleic acid binding motif RNP-1 of bacterial cold-shock proteins (CSPs), represented by the peptide csp22, as a MAMP. Here, we exploited the natural variation in csp22 perception observed between cultivated tomato (Solanum lycopersicum) and Solanum pennellii to map and identify the leucine-rich repeat (LRR) receptor kinase CORE (cold shock protein receptor) of tomato as the specific, high-affinity receptor site for csp22...
November 28, 2016: Nature Plants
https://www.readbyqxmd.com/read/27891321/protective-immunity-elicited-by-oral-immunization-of-mice-with-salmonella-enterica-serovar-typhimurium-braun-lipoprotein-lpp-and-acetyltransferase-msbb-mutants
#6
Tatiana E Erova, Michelle L Kirtley, Eric C Fitts, Duraisamy Ponnusamy, Wallace B Baze, Jourdan A Andersson, Yingzi Cong, Bethany L Tiner, Jian Sha, Ashok K Chopra
We evaluated the extent of attenuation and immunogenicity of the ΔlppAB and ΔlppAB ΔmsbB mutants of Salmonella enterica serovar Typhimurium when delivered to mice by the oral route. These mutants were deleted either for the Braun lipoprotein genes (lppA and lppB) or in combination with the msbB gene, which encodes an acetyltransferase required for lipid A modification of lipopolysaccharide. Both the mutants were attenuated (100% animal survival) and triggered robust innate and adaptive immune responses. Comparable levels of IgG and its isotypes were produced in mice infected with wild-type (WT) S...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27889255/antigenic-variation-of-lasota-and-genotype-vii-newcastle-disease-virus-ndv-and-their-efficacy-against-challenge-with-velogenic-ndv
#7
Hui-Ming Yang, Jing Zhao, Jia Xue, Yan-Ling Yang, Guo-Zhong Zhang
Continued monitoring and evaluation of vaccine efficacy against prevalent or newly isolated strains has great importance in advising Newcastle disease (ND) immunization strategy. In this study, we systematically analysed the antigenic variation between genotype VII NDV aSG10 and the commercial vaccine strain LaSota, and assessed their efficacy against challenge with velogenic NDV by serological analysis and animal testing. We show that these two viruses are antigenically distinguishable; anti-NDV aSG10 hyper-immune sera demonstrated higher haemagglutination inhibition (HI) titres (11...
November 23, 2016: Vaccine
https://www.readbyqxmd.com/read/27876199/comparison-of-homologous-and-heterologous-prime-boost-immunizations-combining-mva-vectored-and-plant-derived-vp2-as-a-strategy-against-ibdv
#8
Matías Richetta, Evangelina Gómez, María Soledad Lucero, Silvina Chimeno Zoth, María José Gravisaco, Gabriela Calamante, Analía Berinstein
Different immunogens such as subunit, DNA or live viral-vectored vaccines against Infectious Bursal Disease virus (IBDV) have been evaluated in the last years. However, the heterologous prime-boost approach using recombinant modified vaccinia Ankara virus (rMVA), which has shown promising results in both mammals and chickens, has not been tried against this pathogen yet. IBD is a highly contagious and immunosuppressive disease of poultry that affects mainly young chicks. It is caused by IBDV, a double-stranded RNA virus carrying its main antigenic epitopes on the capsid protein VP2...
November 18, 2016: Vaccine
https://www.readbyqxmd.com/read/27867430/evaluation-in-mouse-model-of-combined-virus-bacterial-vaccine-based-on-attenuated-influenza-a-h7n3-virus-and-the-group-b-streptococcus-recombinant-polypeptides
#9
Yulia A Desheva, Galina F Leontieva, Tatiana A Kramskaya, Tatiana A Smolonogina, Kornelia B Grabovskaya, Irina V Kiseleva, Larisa G Rudenko, Alexander N Suvorov
BACKGROUND: Secondary bacterial influenza complications are a common cause of excesses morbidity and mortality, which determines the need to develop means for specific prophylaxis. Group B streptococcal infection is especially common cause of pneumonia among children and the elderly with underlying conditions. Here we investigate in a mouse model the effects of combined intranasal immunization using live attenuated influenza vaccine and recombinant polypeptides based on group B Streptococcus surface proteins...
2016: Open Microbiology Journal
https://www.readbyqxmd.com/read/27866773/influenza-h7n9-lah-hbc-virus-like-particle-vaccine-with-adjuvant-protects-mice-against-homologous-and-heterologous-influenza-viruses
#10
Dan Zheng, Shaoheng Chen, Di Qu, Jianjun Chen, Fuyan Wang, Ran Zhang, Ze Chen
The long alpha-helix (LAH) region located in influenza virus hemagglutinin (HA) shows conservation among different influenza A strains, which could be used as a candidate target of influenza vaccines. Moreover, the hepatitis B virus core protein (HBc) is a carrier for heterologous epitopes in eliciting effective immune responses. We inserted the LAH region of H7N9 influenza virus into the HBc and prepared the LAH-HBc protein, which were capable of self-assembly into virus-like particles (VLP), by using E. coli expression system...
December 12, 2016: Vaccine
https://www.readbyqxmd.com/read/27865564/pneumococcal-pep27-mutant-immunization-stimulates-cytokine-secretion-and-confers-long-term-immunity-with-a-wide-range-of-protection-including-against-non-typeable-strains
#11
Gyu-Lee Kim, Sang-Yoon Choi, Seung-Han Seon, Seungyeop Lee, Sang-Sang Park, Joon Young Song, David E Briles, Dong-Kwon Rhee
Streptococcus pneumoniae is comprised of more than 90 serotypes and is the major causative agent of pneumonia, which results in over 1million deaths worldwide every year. Currently available injectable vaccines can protect against only 13-23 serotypes, and result in decrease of colonization against vaccine serotypes. However, they are neither effective for inhibition of non-vaccine serotypes colonization nor inhibition against initial colonization in the nasopharynx against various serotypes. Thus, development of a vaccine conveying broader protection at the colonization stage is required...
December 12, 2016: Vaccine
https://www.readbyqxmd.com/read/27865405/identification-of-sp110-in-horse-equus-caballus-isolation-of-novel-splice-variants-and-evidence-of-activation-effects-on-macrophages
#12
Qi Chen, Qi Tong, Hengtao Ge, Wenzhong Li, Jun Liu, Yongsheng Wang, Zekun Guo, Fusheng Quan, Yong Zhang
SP110 has previously shown to be a genetic determinant of host resistance to the intracellular pathogen infection in mouse and human. However, its relevant biological information in large non-primate animals still remains unknown. Here we report the novel discovery and characterization of three transcript variants of horse SP110. The transcript variant 1 (Tv1) of horse SP110 with the longest open reading frame has four domains (Sp100, SAND, PHD and Bromo domain). Tv2 and Tv3 share the same N-terminal sequence as Tv1, which contains Sp100 and SAND...
December 2016: Tuberculosis
https://www.readbyqxmd.com/read/27864297/expression-of-biologically-active-murine-interleukin-18-il-18-in-lactococcus-lactis
#13
Sadegh Feizollahzadeh, Hossein Khanahmad, Ilnaz Rahimmanesh, Mazdak Ganjalikhani-Hakemi, Alireza Andalib, Mohammad Hossein Sanei, Abbas Rezaei
Food grade bacterium Lactococcus lactis is increasingly used for heterologous protein expression in therapeutic and industrial applications. The ability of L. lactis to secrete biologically active cytokines may be used for the generation of therapeutic cytokines. Interleukin (IL)-18 enhances the immune response, especially on mucosal surfaces, emphasizing its therapeutic potential. However, it is produced as an inactive precursor and has to be enzymatically cleaved for maturation. We genetically manipulated L...
November 17, 2016: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/27862411/natural-and-artificial-hyperimmune-solutions-impact-on-health-in-puppies
#14
H Mila, A Grellet, C Mariani, A Feugier, B Guard, J Suchodolski, J Steiner, S Chastant-Maillard
Colostrum and milk are complex mammary secretions providing the puppy with many nutritional and immunological factors, which play a crucial role for its correct development and survival. In the case of colostrum and/or milk intake deficiency, puppies are at increased risk of infectious diseases. This work reviews the various nutritional hyperimmune supplementations proposed to provide a passive immune protection and to positively impact puppies' health. Some strategies rely on canine immunoglobulins: canine colostrum banking and canine serum/plasma supplementation...
November 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27860076/incoming-human-papillomavirus-16-genome-is-lost-in-pml-protein-deficient-hacat-keratinocytes
#15
Malgorzata Bienkowska-Haba, Wioleta Luszczek, Timothy R Keiffer, Lucile G M Guion, Stephen DiGiuseppe, Rona S Scott, Martin Sapp
Human papillomaviruses (HPVs) target PML nuclear bodies (NBs) during infectious entry and PML protein is important for efficient transcription of incoming viral genome. However, the transcriptional down regulation was shown to be promoter-independent in that heterologous promoters delivered by papillomavirus particles were also affected. To further investigate the role of PML protein in HPV entry, we used shRNA to knockdown PML protein in HaCaT keratinocytes. Confirming previous findings, PML knockdown in HaCaT cells reduced HPV16 transcript levels significantly following infectious entry without impairing binding and trafficking...
November 17, 2016: Cellular Microbiology
https://www.readbyqxmd.com/read/27853256/mucosal-vaccination-with-a-live-recombinant-rhinovirus-followed-by-intradermal-dna-administration-elicits-potent-and-protective-hiv-specific-immune-responses
#16
Khamis Tomusange, Danushka Wijesundara, Jason Gummow, Steve Wesselingh, Andreas Suhrbier, Eric J Gowans, Branka Grubor-Bauk
Mucosal immunity is deemed crucial to control sexual transmission of human immunodeficiency virus (HIV). Herein we report the efficacy of a mucosal HIV vaccine strategy comprising intranasal (IN) vaccination with a cocktail of live recombinant human rhinoviruses (HRVs) encoding overlapping fragments of HIV Gag and full length Tat (rHRV-Gag/Tat) followed by intradermal (ID) vaccination with DNA vaccines encoding HIV Gag and Tat (pVAX-Gag-Tat). This heterologous prime-boost strategy will be referred to hereafter as rHRV-DNA...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27849050/employing-escherichia-coli-derived-outer-membrane-vesicles-as-an-antigen-delivery-platform-elicits-protective-immunity-against-acinetobacter-baumannii-infection
#17
Weiwei Huang, Shijie Wang, Yufeng Yao, Ye Xia, Xu Yang, Kui Li, Pengyan Sun, Cunbao Liu, Wenjia Sun, Hongmei Bai, Xiaojie Chu, Yang Li, Yanbing Ma
Outer membrane vesicles (OMVs) have proven to be highly immunogenic and induced an immune response against bacterial infection in human clinics and animal models. We sought to investigate whether engineered OMVs can be a feasible antigen-delivery platform for efficiently inducing specific antibody responses. In this study, Omp22 (an outer membrane protein of A. baumannii) was displayed on E. coli DH5α-derived OMVs (Omp22-OMVs) using recombinant gene technology. The morphological features of Omp22-OMVs were similar to those of wild-type OMVs (wtOMVs)...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27846256/safety-and-immunogenicity-of-a-rad35-enva-prototype-hiv-1-vaccine-in-combination-with-rad5-enva-in-healthy-adults-vrc-012
#18
Michelle C Crank, Eleanor M P Wilson, Laura Novik, Mary E Enama, Cynthia S Hendel, Wenjuan Gu, Martha C Nason, Robert T Bailer, Gary J Nabel, Adrian B McDermott, John R Mascola, Richard A Koup, Julie E Ledgerwood, Barney S Graham
BACKGROUND: VRC 012 was a Phase I study of a prototype recombinant adenoviral-vector serotype-35 (rAd35) HIV vaccine, the precursor to two recently published clinical trials, HVTN 077 and 083. On the basis of prior evaluation of multiclade rAd5 HIV vaccines, Envelope A (EnvA) was selected as the standard antigen for a series of prototype HIV vaccines to compare various vaccine platforms. In addition, prior studies of rAd5-vectored vaccines suggested pre-existing human immunity may be a confounding factor in vaccine efficacy...
2016: PloS One
https://www.readbyqxmd.com/read/27832963/gotlr7-but-not-gotlr21-mediated-antiviral-immune-responses-against-low-pathogenic-h9n2-aiv-and-newcastle-disease-virus-infection
#19
Bing Yan, Jinyue Zhang, Wei Zhang, Mingshu Wang, Renyong Jia, Dekang Zhu, Mafeng Liu, Qiao Yang, Ying Wu, Kunfeng Sun, Xiaoyue Chen, Anchun Cheng, Shun Chen
Aquatic birds are considered the biological and genetic reservoirs of avian influenza virus and play a critical role in the transmission and dissemination of Newcastle Disease Virus (NDV). Both TLR7 and TLR21 are important for the host antiviral immune response. In an in vivo study, goTLR7, not goTLR21, was significantly up-regulated in the lungs of geese at 3 to 7 d after challenge with H9N2. And goOASL expression was induced in the bursa of fabricius, harderian glands and lungs. An increase in goRIG-I was detected in the lung and small intestine, whereas goPKR was increased in the lung but decreased in the thymus...
November 8, 2016: Immunology Letters
https://www.readbyqxmd.com/read/27830770/lineage-diversification-homo-and-heterologous-reassortment-and-recombination-shape-the-evolution-of-chicken-orthoreoviruses
#20
Szilvia L Farkas, Szilvia Marton, Eszter Dandár, Renáta Kugler, Bence Gál, Ferenc Jakab, Ádám Bálint, Sándor Kecskeméti, Krisztián Bányai
The near complete genome sequences of ten field avian orthoreovirus (ARV) strains collected from young chicken between 2002 and 2011 in Hungary have been determined in order to explore the genetic diversity and evolutionary mechanisms affecting ARVs in this region. Sequence analyses and phylogenetic calculations revealed similar geographic distribution and distinct evolution in case of eight studied strains that were closely related to the recently described Hungarian strain T1781. The remaining two strains showed the highest similarity with the US origin AVS-B...
November 10, 2016: Scientific Reports
keyword
keyword
64293
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"