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Rotavirus immune response

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https://www.readbyqxmd.com/read/29336924/immunization-of-preterm-infants-with-gsk-s-hexavalent-combined-diphtheria-tetanus-acellular-pertussis-hepatitis-b-inactivated-poliovirus-haemophilus-influenzae-type-b-conjugate-vaccine-a-review-of-safety-and-immunogenicity
#1
Felix Omeñaca, Liliana Vázquez, Pilar Garcia-Corbeira, Narcisa Mesaros, Linda Hanssens, Jan Dolhain, Ivonne Puente Gómez, Johannes Liese, Markus Knuf
BACKGROUND: Infants with history of prematurity (<37 weeks gestation) and low birth weight (LBW, <2500 g) are at high risk of infection due to functional immaturity of normal physical and immunological defense mechanisms. Despite current recommendations that infants with history of prematurity/LBW should receive routine immunization according to the same schedule and chronological age as full-term infants, immunization is often delayed. METHODS: Here we summarize 10 clinical studies and 15 years of post-marketing safety surveillance of GSK's hexavalent vaccine (DTPa-HBV-IPV/Hib), a combined diphtheria-tetanus-acellular-pertussis-hepatitis-B-inactivated-poliovirus-Haemophilus influenzae-type-b (Hib) conjugate vaccine, when administered alone, or co-administered with pneumococcal conjugate, rotavirus, and meningococcal vaccines and respiratory syncytial virus IgG to infants with history of prematurity/LBW in clinical trials...
January 11, 2018: Vaccine
https://www.readbyqxmd.com/read/29330512/inactivated-rotavirus-vaccine-by-parenteral-administration-induces-mucosal-immunity-in-mice
#2
Theresa K Resch, Yuhuan Wang, Sung-Sil Moon, Jessica Joyce, Song Li, Mark Prausnitz, Baoming Jiang
To improve the safety and efficacy of oral rotavirus vaccines, we developed an inactivated rotavirus vaccine (IRV) for parenteral administration. Since it remains unknown whether parenteral vaccination can induce mucosal immunity, we performed a comprehensive assessment of immune responses to IRV in mice with an adjuvant-free dissolving polymer MN patch or by alum-adjuvanted IM injection. We demonstrated that IRV induced the expression of the gut homing receptor LPAM-1 on T and B cells in spleen and mLN of vaccinated mice...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29290097/challenges-in-developing-mucosal-vaccine-and-antibodies-against-infectious-diarrhea-in-children
#3
REVIEW
Daisuke Tokuhara
Infectious diarrhea in children can be life-threatening and imposes a large economic burden on healthcare systems, therefore more effective prophylactic and therapeutic drugs are needed urgently. Because most of the pathogens responsible for childhood diarrhea infect the gastrointestinal mucosa, providing protective immunity at the mucosal surface is an ideal way to control pathogen invasion and toxic activity. Mucosal (e.g., oral, nasal) vaccines are superior to systemic (subcutaneous or intramuscular) vaccination for conferring both mucosal and systemic pathogen-specific immune responses...
December 31, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29281659/immunogenicity-of-rotavirus-vaccine-rotarixtm-in-infants-with-environmental-enteric-dysfunction
#4
Innocent Mwape, Samuel Bosomprah, John Mwaba, Katayi Mwila-Kazimbaya, Natasha Makabilo Laban, Caroline Cleopatra Chisenga, Gibson Sijumbila, Michelo Simuyandi, Roma Chilengi
INTRODUCTION: Deployment of rotavirus vaccines has contributed to significant declines in diarrheal morbidity and mortality globally. Unfortunately, vaccine performance in low-middle income countries (LMICs) is generally lower than in developed countries. The cause for this has been associated with several host and maternal factors including poor water sanitation and hygiene (WASH) status, which are predominant in LMICs. More recently, environmental enteric dysfunction (EED) has specifically been hypothesized to contribute to poor vaccine uptake and response...
2017: PloS One
https://www.readbyqxmd.com/read/29223486/cost-effectiveness-of-rotavirus-vaccination-in-ghana-examining-impacts-from-2012-to-2031
#5
Justice Nonvignon, Deborah Atherly, Clint Pecenka, Moses Aikins, Lauren Gazley, Devin Groman, Clement T Narh, George Armah
BACKGROUND: Diarrhea causes about 10% of all deaths in children under five years globally, with rotavirus causing about 40% of all diarrhea deaths. Ghana introduced rotavirus vaccination as part of routine immunization in 2012 and it has been shown to be effective in reducing disease burden in children under five years. Ghana's transition from low to lower-middle income status in 2010 implies fewer resources from Gavi as well as other major global financing mechanisms. Ghana will soon bear the full cost of vaccines...
December 6, 2017: Vaccine
https://www.readbyqxmd.com/read/29185875/immunization-of-mice-by-rotavirus-nsp4-vp6-fusion-protein-elicited-stronger-responses-compared-to-vp6-alone
#6
Atefeh Afchangi, Arash Arashkia, Zahra Shahosseini, Somayeh Jalilvand, Sayed Mahdi Marashi, Farzin Roohvand, Nasir Mohajel, Zabihollah Shoja
Due to the limitations and safety issues of the two currently approved live attenuated rotavirus (RV) vaccines "RotaTeq and Rotarix," studies on nonreplicating sources of RV vaccines and search for proper RV antigens are actively carried out. The adjuvant activity of NSP4 and highly immunogenic properties of RV VP6 protein prompted us to consider the construction of a NSP4112-175-VP6 fusion protein and to assess the anti-VP6 IgG, IgA, and IgG subclass responses induced by Escherichia coli-derived NSP4-VP6 fusion protein compared to that of VP6 protein with/without formulation in Montanide ISA 50V2 (M50) in BALB/c mice...
November 29, 2017: Viral Immunology
https://www.readbyqxmd.com/read/29176431/utilizing-gnotobiotic-models-to-inform-the-role-of-the-microbiome-in-vaccine-response-heterogeneity
#7
Jacob A Cram, Kevin W Hager, James G Kublin
PURPOSE OF REVIEW: Gnotobiotic models have the potential to provide substantial insight into how the microbiome shapes its host's response to vaccines. This review aims to summarize literature about the role of the microbiome in shaping the immune system and vaccine response heterogeneity, summarize gnotobiotic and other murine models that help us understand the immune system and vaccine response, and suggest novel ways that these models could be used to further understand vaccine response heterogeneity...
November 14, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/29107346/potential-impact-and-cost-effectiveness-of-rotavirus-vaccination-in-afghanistan
#8
Palwasha Anwari, Frederic Debellut, Clint Pecenka, Sardar M Parwiz, Andrew Clark, Devin Groman, Najibullah Safi
INTRODUCTION: Despite progress made in child survival in the past 20 years, 5.9 million children under five years died in 2015, with 9% of these deaths due to diarrhea. Rotavirus is responsible for more than a third of diarrhea deaths. In 2013, rotavirus was estimated to cause 215,000 deaths among children under five years, including 89,000 in Asia. As of April 2017, 92 countries worldwide have introduced rotavirus vaccination in their national immunization program. Afghanistan has applied for Gavi support to introduce rotavirus vaccination nationally...
October 26, 2017: Vaccine
https://www.readbyqxmd.com/read/29017253/rapid-clearance-and-frequent-reinfection-with-enteric-pathogens-among-children-with-acute-diarrhea-in-zanzibar
#9
Maria Eva Andersson, Kristina Elfving, Deler Shakely, Staffan Nilsson, Mwinyi Msellem, Birger Trollfors, Andreas Mårtensson, Anders Björkman, Magnus Lindh
Background: Acute infectious gastroenteritis is an important cause of illness and death among children in low-income countries. In addition to rotavirus vaccination, actions to improve nutrition status, sanitation, and water quality are important to reduce enteric infections, which are frequent also among asymptomatic children. The aim of this study was to investigate if the high prevalence of these infections reflects that they often are not cleared properly by the immune response or rather is due to frequent pathogen exposure...
October 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28891751/rotavirus-vaccine-response-correlates-with-the-infant-gut-microbiota-composition-in-pakistan
#10
Vanessa Harris, Asad Ali, Susana Fuentes, Katri Korpela, Momin Kazi, Jacqueline Tate, Umesh Parashar, W Joost Wiersinga, Carlo Giaquinto, Carolina de Weerth, Willem M de Vos
Rotavirus (RV) is the leading cause of diarrhea-related death in children worldwide and ninety-five percent of rotavirus deaths occur in Africa and Asia. Rotavirus vaccines (RVV) can dramatically reduce RV deaths, but have low efficacy in low-income settings where they are most needed. The intestinal microbiome may contribute to this decreased RVV efficacy. This pilot study hypothesizes that infants' intestinal microbiota composition correlates with RVV immune responses and that RVV responders have different gut microbiota as compared to non-responders...
September 11, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28874323/the-effect-of-probiotics-and-zinc-supplementation-on-the-immune-response-to-oral-rotavirus-vaccine-a-randomized-factorial-design-placebo-controlled-study-among-indian-infants
#11
Robin P Lazarus, Jacob John, E Shanmugasundaram, Anand K Rajan, S Thiagarajan, Sidhartha Giri, Sudhir Babji, Rajiv Sarkar, P Saravankumar Kaliappan, Srinivasan Venugopal, Ira Praharaj, Uma Raman, Meghana Paranjpe, Nicholas C Grassly, Edward P K Parker, Umesh D Parashar, Jacqueline E Tate, Jessica A Fleming, A Duncan Steele, Jayaprakash Muliyil, Asha M Abraham, Gagandeep Kang
BACKGROUND: Strategies are needed to improve oral rotavirus vaccine (RV), which provides suboptimal protection in developing countries. Probiotics and zinc supplementation could improve RV immunogenicity by altering the intestinal microbiota and immune function. METHODS: Infants 5weeks old living in urban Vellore, India were enrolled in a randomized, double-blind, placebo-controlled trial with a 4-arm factorial design to assess the effects of daily zinc (5mg), probiotic (10(10)Lactobacillus rhamnosus GG) or placebo on the immunogenicity of two doses of RV (Rotarix®, GlaxoSmithKline Biologicals) given at 6 and 10weeks of age...
September 2, 2017: Vaccine
https://www.readbyqxmd.com/read/28851847/rotavirus-nsp1-requires-casein-kinase-ii-mediated-phosphorylation-for-hijacking-of-cullin-ring-ligases
#12
Kaitlin A Davis, Marco Morelli, John T Patton
The rotavirus nonstructural protein NSP1 repurposes cullin-RING E3 ubiquitin ligases (CRLs) to antagonize innate immune responses. By functioning as substrate adaptors of hijacked CRLs, NSP1 causes ubiquitination and proteasomal degradation of host proteins that are essential for expression of interferon (IFN) and IFN-stimulated gene products. The target of most human and porcine rotaviruses is the β-transducin repeat-containing protein (β-TrCP), a regulator of NF-κB activation. β-TrCP recognizes a phosphorylated degron (DSGΦXS) present in the inhibitor of NF-κB (IκB); phosphorylation of the IκB degron is mediated by IκB kinase (IKK)...
August 29, 2017: MBio
https://www.readbyqxmd.com/read/28851763/the-innate-immune-receptor-mda5-limits-rotavirus-infection-but-promotes-cell-death-and-pancreatic%C3%A2-inflammation
#13
Yu Dou, Howard Ch Yim, Carl D Kirkwood, Bryan Rg Williams, Anthony J Sadler
Melanoma differentiation-associated protein 5 (MDA5) mediates the innate immune response to viral infection. Polymorphisms in IFIH1, the gene coding for MDA5, correlate with the risk of developing type 1 diabetes (T1D). Here, we demonstrate that MDA5 is crucial for the immune response to enteric rotavirus infection, a proposed etiological agent for T1D. MDA5 variants encoded by minor IFIH1 alleles associated with lower T1D risk exhibit reduced activity against rotavirus infection. We find that MDA5 activity limits rotavirus infection not only through the induction of antiviral interferons and pro-inflammatory cytokines, but also by promoting cell death...
September 15, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28844408/genotype-distribution-of-group-a-rotavirus-from-southern-india-2005-2016
#14
Sudhir Babji, Rajesh Arumugam, R Priyahemavathy, Archana Sriraman, Anuradha Sarvanabhavan, Punithavathy Manickavasagam, Anna Simon, Indira Aggarwal, Prabhakar D Moses, Rashmi Arora, Gagandeep Kang
Diarrheal disease due to Group A rotaviruses remain a leading cause of mortality and morbidity in the less developed parts of the world. India has started a phased roll out of rotavirus vaccine in the national immunization program. This analysis summarizes the rotavirus genotype strain distribution pre-vaccine introduction in Vellore, India from December 2005 to June 2016. Rotavirus was responsible for 32% of all diarrheal admission to the hospital. G2P[4] was the predominant strain in the initial years and was gradually replaced by G1P[8]...
August 22, 2017: Vaccine
https://www.readbyqxmd.com/read/28836489/postdose-3-g1-serum-neutralizing-antibody-as-correlate-of-protection-for-pentavalent-rotavirus-vaccine
#15
G Frank Liu, Darcy Hille, Susan S Kaplan, Michelle G Goveia
Although clinical trials of the pentavalent rotavirus vaccine (RotaTeq®, RV5) have demonstrated efficacy against RV gastroenteritis (RGE) in low and high-income settings, a clear correlate of protection or a measure of immune response that could predict efficacy has yet to be identified. This is the first time that immunogenicity data with both serum neutralized antibody (SNA) titers and anti-RV IgA titers from several clinical efficacy trials were pooled to provide a unique context for evaluating the correlation between immunogenicity and RGE risk or efficacy of RV5...
October 3, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28719500/a-randomized-controlled-study-of-a-fully-liquid-dtap-ipv-hb-prp-t-hexavalent-vaccine-for-primary-and-booster-vaccinations-of-healthy-infants-and-toddlers-in-latin-america
#16
RANDOMIZED CONTROLLED TRIAL
Pío López, Adriano Arguedas Mohs, Arturo Abdelnour Vásquez, Maria Consuelo-Miranda, Emmanuel Feroldi, Fernando Noriega, Emilia Jordanov, Siham B Chir, Betzana Zambrano
BACKGROUND: Hexavalent diphtheria-tetanus-acellular pertussis-inactivated poliovirus-hepatitis B-Haemophilus influenzae type b (DTaP-IPV-HB-PRP-T)-containing vaccines are increasingly the standard of care. This study evaluated the primary series (NCT01177722) and booster (NCT01444781) of a fully liquid DTaP-IPV-HB-PRP-T vaccine in Latin America. METHODS: Infants (N = 1375) received hepatitis B vaccine at birth and were randomized to one of 3 batches of the investigational DTaP-IPV-HB-PRP-T or licensed control vaccine (DTaP-HB-IPV//PRP-T) at 2-4 to 6 months of age, coadministered with 7-valent pneumococcal conjugate vaccine (PCV7) (2-4-6 months) and rotavirus vaccine (2-4 months)...
November 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28713375/interferon-lambda-a-potent-regulator-of-intestinal-viral-infections
#17
REVIEW
Sanghyun Lee, Megan T Baldridge
Interferon-lambda (IFN-λ) is a recently described cytokine found to be of critical importance in innate immune regulation of intestinal viruses. Endogenous IFN-λ has potent antiviral effects and has been shown to control multiple intestinal viruses and may represent a factor that contributes to human variability in response to infection. Importantly, recombinant IFN-λ has therapeutic potential against enteric viral infections, many of which lack other effective treatments. In this mini-review, we describe recent advances regarding IFN-λ-mediated regulation of enteric viruses with important clinical relevance including rotavirus, reovirus, and norovirus...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28710013/murine-bone-marrow-derived-dcs-activated-by-porcine-rotavirus-stimulate-the-th1-subtype-response-in%C3%A2-vitro
#18
Liping Ye, Yanlong Jiang, Guilian Yang, Wentao Yang, Jingtao Hu, Yulin Cui, Chunwei Shi, Jing Liu, Chunfeng Wang
Rotavirus (RV) infection causes acute, watery dehydrating diarrhea and even death in infants and other young animals, resulting in a severe economic burden; however, little is known about the innate immune mechanisms associated with RV infection. Dendritic cells (DCs), which are professional antigen-presenting cells (APCs), serve as a bridge connecting the innate and adaptive immune system. In this study, the interaction between murine bone marrow-derived DCs (BMDCs) and porcine rotavirus (PRV) was investigated in vitro...
July 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28637924/vp4-and-vp7-specific-antibodies-mediate-heterotypic-immunity-to-rotavirus-in-humans
#19
Nitya Nair, Ningguo Feng, Lisa K Blum, Mrinmoy Sanyal, Siyuan Ding, Baoming Jiang, Adrish Sen, John M Morton, Xiao-Song He, William H Robinson, Harry B Greenberg
Human rotaviruses (RVs) are the leading cause of severe diarrhea in young children worldwide. The molecular mechanisms underlying the rapid induction of heterotypic protective immunity to RV, which provides the basis for the efficacy of licensed monovalent RV vaccines, have remained unknown for more than 30 years. We used RV-specific single cell-sorted intestinal B cells from human adults, barcode-based deep sequencing of antibody repertoires, monoclonal antibody expression, and serologic and functional characterization to demonstrate that infection-induced heterotypic immunoglobulins (Igs) primarily directed to VP5*, the stalk region of the RV attachment protein, VP4, are able to mediate heterotypic protective immunity...
June 21, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28637803/protein-malnutrition-alters-tryptophan-and-angiotensin-converting-enzyme-2-homeostasis-and-adaptive-immune-responses-in-human-rotavirus-infected-gnotobiotic-pigs-with-human-infant-fecal-microbiota-transplant
#20
David D Fischer, Sukumar Kandasamy, Francine C Paim, Stephanie N Langel, Moyasar A Alhamo, Lulu Shao, Juliet Chepngeno, Ayako Miyazaki, Huang-Chi Huang, Anand Kumar, Gireesh Rajashekara, Linda J Saif, Anastasia N Vlasova
Malnutrition leads to increased morbidity and is evident in almost half of all deaths in children under the age of 5 years. Mortality due to rotavirus diarrhea is common in developing countries where malnutrition is prevalent; however, the relationship between malnutrition and rotavirus infection remains unclear. In this study, gnotobiotic pigs transplanted with the fecal microbiota of a healthy 2-month-old infant were fed protein-sufficient or -deficient diets and infected with virulent human rotavirus (HRV)...
August 2017: Clinical and Vaccine Immunology: CVI
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