Combined detection of foodborne pathogens in irrigation water in Jiangsu, China.

Numerous foodborne disease outbreaks have been attributed to the consumption of fresh produce contaminated with foodborne pathogens. Contaminated irrigation water is a well-established source of bacterial and viral contamination during primary production and is frequently responsible for the contamination of fresh produce. However, efficient methods for the simultaneous detection of bacterial and viral pathogens present in irrigation water are still scarce.

The Role of the Wiskott-Aldrich Syndrome Protein Family in Cancer Development, Invasion, and Metastasis.

Emerging evidence indicates that cancer metastasis is governed by distinct genetic mechanisms that operate independently of those regulating carcinogenesis and cancer proliferation. The Wiskott-Aldrich syndrome protein (WASP) family members significantly contribute to the regulation of actin cytoskeleton (AC) dynamics and cancer cell invasion and metastasis. Recent research has demonstrated that WASP and its homolog, the WASP family verprolin-homologous protein (WAVE), function as a master regulator and a key scaffolding protein, bringing together the various components of metastatic signaling complexes, thereby facilitating the development of solid tumors.

Specific binding of human P[28] rotavirus VP8* protein to blood group ABH antigens on type 1 chains.

Group A rotavirus (RV) has been the major cause of acute gastroenteritis in infants and young children. Among the five P genogroups almost all P genotype RVs in P[II], P[III] and P[IV] genogroups that infect humans can bind glycan histo-blood group antigens (HBGAs) as the receptors on the host cell surface to infect host through the viral spike protein VP8*. Although P[I] is the largest genogroup, P[28] and P[10] are the only two genotype RVs infecting humans in the group.

Improved mRNA-based RSV vaccine with PreF forming enveloped virus-like particles.

Respiratory syncytial virus (RSV) causes severe respiratory disease in infants and the elderly. However, natural infection fails to induce durable immune protection, and existing mRNA vaccines for older adults exhibit limited long-term efficacy. We developed an antigen engineering strategy inserting ESCRT/ALIX-binding region (EABR) into truncated RSV prefusion F (PreF) cytoplasmic tails to form enveloped virus-like particles (eVLPs).

Whole-Genome Analysis of G2P[4] Rotavirus Strains in China in 2022 and Comparison of Their Antigenic Epitopes with Vaccine Strains.

Group A rotavirus (RVA) is the leading cause of acute gastroenteritis in infants and young children worldwide. To elucidate the molecular epidemiology of G2P[4] rotavirus in China and the protective effects of vaccines, whole-genome analysis of 13 G2P[4] RVA strains collected from China in 2022 was performed. Twelve strains possessed the typical DS-1-like genome constellation G2-P[4]-I2-R2-C2-M2-A2-N2-T2-E2-H2.

Oral Ad5 Vector-Based SARS-CoV-2 Vaccine Effectively Induces Mucosal and Systemic Immune Responses in BALB/c Mice.

Mucosal immunity is essential for preventing viral infections through the mucosal route. The emerging SARS-CoV-2 variants have posed additional hurdles to the efficiency of existing vaccines. The rapid development of novel vaccines that generate broad mucosal and systemic immunity could be the most effective strategy to address this issue.

Advancements in rheumatoid arthritis immunotherapy: a comprehensive bibliometric analysis of research trends and hotspots (2003-2023).

Objectives: To analyse research trends and developments in rheumatoid arthritis (RA) immunotherapy through a comprehensive bibliometric analysis of literature from 2003 to 2023.

Methods: Publications related to RA immunotherapy were retrieved from Web of Science Core Collection database using specified search terms. Bibliometric analysis was performed with VOSviewer, CiteSpace, Pajek, and R packages to examine publication patterns, international collaborations, research hotspots, and emerging trends.

An oral vaccine based on the Ad5 vector with a double-stranded RNA adjuvant protects mice against respiratory syncytial virus.

A safe and effective vaccine is urgently needed to prevent acute respiratory infections caused by respiratory syncytial virus (RSV). Oral administration offers several advantages, including ease of delivery, minimal stress for vaccine recipients, and greater safety than the systemic injection. In this study, we developed an oral vaccine candidate based on the human adenovirus serotype 5 (Ad5) vector, Ad5-PreF-DS2, encoding a prefusion protein of RSV with a dsRNA as an endogenous adjuvant.

Epidemiological, molecular, and evolutionary characteristics of G1P[8] rotavirus in China on the eve of RotaTeq application.

Introduction: This study, conducted in China prior to RotaTeq's launch, examined the epidemiological, molecular, and evolutionary features of the G1P[8] genotype RVA in children admitted with diarrhea, to aid in evaluating its efficacy and impact on G1P[8] RVA in China.

Methods: Data from the Chinese viral diarrhea surveillance network were collected from January 2016 to December 2018. RVA strains identified as the G1P[8] genotype were subjected to whole-genome sequencing.

Corrigendum: Phylogenetic analysis of the viral proteins VP4/VP7 of circulating human rotavirus strains in China from 2016 to 2019 and comparison of their antigenic epitopes with those of vaccine strains.

[This corrects the article DOI: 10.3389/fcimb.2022.

Reassortment and genomic analysis of a G9P[8]-E2 rotavirus isolated in China.

Objective: To isolate a prevalent G9P[8] group A rotavirus (RVA) (N4006) in China and investigate its genomic and evolutionary characteristics, with the goal of facilitating the development of a new rotavirus vaccine.

Methods: The RVA G9P[8] genotype from a diarrhea sample was passaged in MA104 cells. The virus was evaluated by TEM, polyacrylamide gel electrophoresis, and indirect immunofluorescence assay.

The induction and suppression of type I and type III interferons by human group H rotavirus.

Group H Rotavirus (RVH) is associated with human diarrhea gastroenteritis. The interferon (IFN) response induced by RVH remains unclear. In this study, we first studied the characteristic feature of RVH and found J19 strain of RVH grew less efficiently compared with the G6P1 strain of RVA.

Genomic and evolutionary characteristics of G9P[8], the dominant group a rotavirus in China (2016-2018).

G9P[8] became the predominant rotavirus A (RVA) genotype in China in 2012. To evaluate its genetic composition at the whole-genome level, 115 G9P[8] RVA strains isolated from children under 5 years old were sequenced and characterized. All 13 strains in 2016 and 2017 and an additional 54 strains in 2018 were genotyped as G9-P[8]-I1-R1-C1-M1-A1-N1-T1--H1.

Phylogenetic analysis of the viral proteins VP4/VP7 of circulating human rotavirus strains in China from 2016 to 2019 and comparison of their antigenic epitopes with those of vaccine strains.

Group A rotaviruses (RVAs) are the most common etiological agents of severe acute diarrhea among children under 5 years old worldwide. At present, two live-attenuated RVA vaccines, LLR (G10P[15]) and RotaTeq (G1-G4, G6 P[8], P[5]), have been introduced to mainland China. Although RVA vaccines can provide homotypic and partially heterotypic protection against several strains, it is necessary to explore the genetic and antigenic variations between circulating RVAs and vaccine strains.

Genomic and evolutionary characteristics of G3P[8] group a rotavirus strains in China, 2016 to 2018.

Rotavirus A (RVA) G3P[8] is sporadically detected in China, although G9P[8] predominates. To evaluate their genetic composition at the whole-genome level, 24 G3P[8] RVA strains isolated from children under five years were sequenced and characterized. The 24 strains were genotyped as G3-P[8]-I1-R1-C1-M1-A1-N1-T1-E1-H1, indicating the Wa-like genotype constellation.

Structural and functional characterization of bovine G1P[5] rotavirus VP8* protein.

The widely used rotavirus (RV) vaccine, Rotateq, contained reassortment strains of human and bovine G1/2/3/4P[5] RVs. The functional and structural features of bovine G1P[5] VP8* were investigated. Bovine G1P[5] VP8* was identified to interact with sialic acids and sialic acid-containing glycans.

Structural Basis of Glycan Recognition of Rotavirus.

Rotavirus (RV) is an important pathogen causing acute gastroenteritis in young humans and animals. Attachment to the host receptor is a crucial step for the virus infection. The recent advances in illustrating the interactions between RV and glycans promoted our understanding of the host range and epidemiology of RVs.

The Functional Characterization of Bat and Human P[3] Rotavirus VP8*s.

P[3] rotavirus (RV) has been identified in many species, including human, simian, dog, and bat. Several glycans, including sialic acid, histo-blood group antigens (HBGAs) are reported as RV attachment factors. The glycan binding specificity of different P[3] RV VP8*s were investigated in this study.

Infection status and circulating strains of rotaviruses in Chinese children younger than 5-years old from 2011 to 2018: systematic review and meta-analysis.

To evaluate rotavirus (RV) disease burden and circulating strains of RV among Chinese children younger than 5-years old who had diarrhea from 2011 to 2018. PubMed, Web of Science, Embase, CNKI and WANFANG databases were systematically searched to identify studies that reported RV prevalence in mainland China. After data extraction, a fixed-effects model or a random-effects model was applied to estimate RV positivity and proportions of G and P types.

Human group A rotavirus P[25] VP8* specifically binds to A-type histo-blood group antigen.

Rotavirus (RV) is a common cause of acute gastroenteritis in young children. While P[8] and P[4] are the most prevalent RV genotypes in humans, other genotypes are also reported in human infections occasionally, including human P[25]. The glycan binding and structural characteristics of human P[25] were explored in our study.

A novel picornavirus identified in wild Macaca mulatta in China.

The discovery of novel viruses in wild animals allows the prediction of their potential threat to the health of humans and other animals. We report a highly divergent picornavirus (tentatively named "mobovirus A"), identified in a fecal sample from Macaca mulatta in Yunnan province, China, using viral metagenomic analysis, with viral loads of 2 × 10 copies/g. The complete genomic sequence of mobovirus A is 8,325 nucleotides in length.

Structural Basis of Glycan Recognition in Globally Predominant Human P[8] Rotavirus.

Rotavirus (RV) causes acute gastroenteritis in infants and children worldwide. Recent studies showed that glycans such as histo-blood group antigens (HBGAs) function as cell attachment factors affecting RV host susceptibility and prevalence. P[8] is the predominant RV genotype in humans, but the structural basis of how P[8] RVs interact with glycan ligands remains elusive.

GII.13/21 Noroviruses Recognize Glycans with a Terminal β-Galactose via an Unconventional Glycan Binding Site.

Human noroviruses (huNoVs) recognize histo-blood group antigens (HBGAs) as host susceptibility factors. GII.13 and GII.

Profiling of Human Milk Oligosaccharides for Lewis Epitopes and Secretor Status by Electrostatic Repulsion Hydrophilic Interaction Chromatography Coupled with Negative-Ion Electrospray Tandem Mass Spectrometry.

Human milk oligosaccharides (HMOs) are one of the most abundant ingredients in breast milk, and they play a beneficial role for newborns and are important for infant health. The peripheral fucosylated sequences of HMOs, such as the histo-blood group ABH(O) and Lewis a, b, x, and y antigens, are determined by the expression of the secretor (Se) and Lewis (Le) genes in the mammary gland, and are often the recognition motifs and serve as decoy receptors for microbes. In this work, we developed a method for determination of secretor status and Lewis blood phenotype and assignment of Lewis blood-group epitopes.