VirulencePub Date : 2025-12-01Epub Date: 2025-03-07DOI: 10.1080/21505594.2025.2474188
Yuzhi Zhang, Chengwei Pan, Sijie Wang, Yidan Zhou, Jiawei Chen, Xiaoyu Yu, Ruining Peng, Nu Zhang, Hui Yang
{"title":"Distinctive function of Tetraspanins: Implication in viral infections.","authors":"Yuzhi Zhang, Chengwei Pan, Sijie Wang, Yidan Zhou, Jiawei Chen, Xiaoyu Yu, Ruining Peng, Nu Zhang, Hui Yang","doi":"10.1080/21505594.2025.2474188","DOIUrl":"10.1080/21505594.2025.2474188","url":null,"abstract":"<p><p>Harboring four transmembrane domains in their structural hallmark, Tetraspanins (Tspans) are a family of glycoproteins with pivotal functions in a variety of biological and cellular processes. Through interacting laterally with each other or specific membrane proteins, Tspans organize tetraspanin-enriched microdomains (TEMs), modulating cellular signaling, adhesion, fusion, and proliferation. An abundance of evidence has identified the multiple functions in the progression of cancer as well as the underlying molecular mechanisms. Recently, plenty of studies have focused on the utilities of Tspans by pathogens for infection, especially the infection of viruses. The expression of Tspans correlates with the phase of viral infection, the type of virus, and targeted therapies. In particular, perturbations of Tspans in host cells can affect viral attachment, intracellular trafficking, translation, virus assembly, and release. In this review, we summarize and provide a historical overview of the discovery and characterization of various kinds of virus infection and highlight their diversity and complexity, along with the virus life cycle. Furthermore, we examined the current understanding of how various Tspans are involved in the regulatory mechanisms underlying viral infection. This review aims to offer a comprehensive understanding of the targeting of Tspans for therapeutic intervention in infections caused by diverse pathogens.</p>","PeriodicalId":23747,"journal":{"name":"Virulence","volume":"16 1","pages":"2474188"},"PeriodicalIF":5.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11901453/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143575962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
VirulencePub Date : 2025-12-01Epub Date: 2025-03-11DOI: 10.1080/21505594.2025.2474185
Jichen Xie, Hui Wang, Renhui Ma, Jinming Fan, Qiuhang Quan, Zhiqiang Zhang, Moran Li, Bei Li
{"title":"The molybdate transport protein ModA regulates nitrate reductase activity to increase the intestinal colonization and extraintestinal dissemination of <i>Klebsiella pneumoniae</i> in the inflamed gut.","authors":"Jichen Xie, Hui Wang, Renhui Ma, Jinming Fan, Qiuhang Quan, Zhiqiang Zhang, Moran Li, Bei Li","doi":"10.1080/21505594.2025.2474185","DOIUrl":"10.1080/21505594.2025.2474185","url":null,"abstract":"<p><p>The mammalian intestine is a major site of colonization and a starting point of severe infections by <i>Klebsiella pneumoniae</i>. Inflammatory bowel disease (IBD) is an inflammatory disorder of the gut, and host-derived nitrate in IBD confers a luminal growth advantage upon <i>Escherichia coli</i> and <i>Salmonella typhimurium</i> through nitrate respiration in the inflamed gut. However, the impact of nitrate on the growth and pathogenicity of <i>K. pneumoniae</i> in this microenvironment is poorly understood. In this study, we used oral administration of dextran sodium sulphate to induce IBD in mouse models. We then analysed the colonization levels of <i>K. pneumoniae</i> wild-type (WT), the nitrate reductase gene mutant strains (Δ<i>narG</i>, Δ<i>narZ</i> and Δ<i>narG</i>Δ<i>narZ</i>), and the molybdate uptake gene mutant strain (Δ<i>modA</i>) in the inflamed intestinal tract. Results showed that the growth, intestinal colonization, and extraintestinal dissemination of <i>K. pneumoniae</i> were increased in the intestines of dextran sulphate sodium (DSS)-treated mice. Nitrate in the inflamed bowel conferred a growth advantage to <i>K. pneumoniae</i> through nitrate respiration. The molybdate transport protein ModA regulated nitrate reductase activity to increase the growth, intestinal colonization, and extraintestinal dissemination of <i>K. pneumoniae</i>. Tungstate will be a promising antibacterial agent to tackle <i>K. pneumoniae</i> infections in IBD patients.</p>","PeriodicalId":23747,"journal":{"name":"Virulence","volume":" ","pages":"2474185"},"PeriodicalIF":5.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11901421/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143543808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
VirulencePub Date : 2025-12-01Epub Date: 2025-02-20DOI: 10.1080/21505594.2025.2466480
Zhijuan Kang, Liang Zhang, Zuocheng Yang
{"title":"Role of non-coding RNAs in the pathogenesis of viral myocarditis.","authors":"Zhijuan Kang, Liang Zhang, Zuocheng Yang","doi":"10.1080/21505594.2025.2466480","DOIUrl":"10.1080/21505594.2025.2466480","url":null,"abstract":"<p><p>Viral myocarditis (VMC) is a common inflammatory disease of the myocardium that is characterized mainly by inflammatory cell infiltration and cardiomyocyte necrosis. Coxsackievirus B3 (CVB3) is a common cause of VMC, although major progress has been made in the treatment of VMC, the long-term prognosis is still not ideal and further research is needed. Non-coding RNAs (ncRNAs) are RNA molecules without coding functions and include microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs), which play extensive regulatory roles in gene expression; however, their mechanisms of action in CVB3-induced VMC remain incompletely understood. Here, we review the currently known roles of various ncRNAs in CVB3-induced VMC models, with a focus on cell death, inflammation and viral replication, with the aim of providing a reference for their therapeutic or vaccine development for the treatment of VMC.</p>","PeriodicalId":23747,"journal":{"name":"Virulence","volume":" ","pages":"2466480"},"PeriodicalIF":5.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11849450/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143415128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"<i>Porphyromonas gulae</i> and canine periodontal disease: Current understanding and future directions.","authors":"Kyu Hwan Kwack, Eun-Young Jang, Cheul Kim, Young-Suk Choi, Jae-Hyung Lee, Ji-Hoi Moon","doi":"10.1080/21505594.2024.2449019","DOIUrl":"10.1080/21505594.2024.2449019","url":null,"abstract":"<p><p><i>Porphyromonas gulae</i> has emerged as a notable pathogen in canine periodontal disease, akin to <i>Porphyromonas gingivalis</i> in human periodontitis. This review examines the initial isolation, phylogenetic analysis, habitat, host range, relationships with host health status and age, and key pathogenic determinants, including fimbriae, proteases, citrullinating enzyme, and lipopolysaccharide. Control strategies discussed include polyphosphate to disrupt haeme/iron utilization, clindamycin with interferon alpha to reduce bacterial load and enhance the immune response, and a protease inhibitor. Further research is needed to understand strain-level diversity of virulence factors and interactions between <i>P. gulae</i> and other oral bacteria, particularly <i>Fusobacterium nucleatum</i>, a common pathogen in both dogs and humans. The potential for interspecies transmission between dogs and humans warrants further research into these interactions. Extensive <i>in vivo</i> studies across various breeds are crucial to validate the effectiveness of proposed treatment strategies. This review emphasizes <i>P. gulae</i>'s role in periodontal health and disease, setting the stage for future research and improved management of canine periodontal disease.</p>","PeriodicalId":23747,"journal":{"name":"Virulence","volume":"16 1","pages":"2449019"},"PeriodicalIF":5.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756583/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143012732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Innovative use of gram-positive enhancer matrix particles and affinity peptides in a vaccine against coxsackievirus B3.","authors":"Shaoju Qian, Ruixue Li, Guanyu Chen, Yinghua Ma, Zhou Tang, Yihang Song, Zhishan Xu, Zihan Zhang, Yeqing He, Xingyi Zhang, Shuao Lu, Zishan Yang, Xiangfeng Song, Wenfa Yu, Lili Yu","doi":"10.1080/21505594.2025.2481657","DOIUrl":"https://doi.org/10.1080/21505594.2025.2481657","url":null,"abstract":"<p><p>Viral myocarditis (VM) is an inflammatory disease posing a serious threat to public health, with various viral pathogens contributing to its pathogenesis. Coxsackievirus B3 (CVB3) is the most frequently implicated causative agent and has been extensively studied because of its high prevalence and severity. No specific therapeutic interventions for VM exist, and vaccine development has encountered substantial challenges. Therefore, we aimed to develop a novel CVB3 mucosal vaccine as a preventive strategy against VM. Gram-positive enhancer matrice (GEM) particles serve as innovative mucosal vaccine adjuvants and antigen delivery systems that enhance antigen immunogenicity by facilitating effective mucosal immune responses. In this study, GEM particle display technology was used to develop two novel CVB3 vaccines: (1) a GEM particle-based vaccine displaying the CVB3 capsid protein VP1 via a PA anchor protein (GEM-PA-VP1), and (2) a GEM particle-based vaccine displaying VP1 via the FcSP peptide (GEM-Fc-VP1). Both, GEM-PA-VP1 and GEM-Fc-VP1 elicited significantly elevated levels of specific IgG, IgG1, IgG2a, SigA and neutralizing antibodies in a mouse model, along with enhanced secretion of Th1- and Th2-associated cytokines, compared to controls. Notably, GEM-Fc-VP1 demonstrated superior immunogenicity compared with that of GEM-PA-VP1, evidenced by higher antibody titres and cytokine responses. In challenge protection experiments, both vaccines significantly improved survival rates, reduced myocardial enzyme levels, and decreased inflammatory cell infiltration in myocardial tissue, with GEM-Fc-VP1 exhibiting greater efficacy. These findings establish a foundation for the development of a safe and effective CVB3 candidate vaccine and provide novel insights into the potential of peptide-mediated subunit vaccine approaches.</p>","PeriodicalId":23747,"journal":{"name":"Virulence","volume":" ","pages":"2481657"},"PeriodicalIF":5.5,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143773130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dry eye disease caused by viral infection: Past, present and future.","authors":"Min Wu, Cuilian Sun, Qin Shi, Yalu Luo, Ziyu Wang, Jianxiang Wang, Yun Qin, Weihang Cui, Chufeng Yan, Huangyi Dai, Zhiyang Wang, Jia Zeng, Yamei Zhou, Manhui Zhu, Xiaojuan Liu","doi":"10.1080/21505594.2023.2289779","DOIUrl":"10.1080/21505594.2023.2289779","url":null,"abstract":"<p><p>Following viral infection, the innate immune system senses viral products, such as viral nucleic acids, to activate innate defence pathways, leading to inflammation and apoptosis, control of cell proliferation, and consequently, threat to the whole body. The ocular surface is exposed to the external environment and extremely vulnerable to viral infection. Several studies have revealed that viral infection can induce inflammation of the ocular surface and reduce tear secretion of the lacrimal gland (LG), consequently triggering ocular morphological and functional changes and resulting in dry eye disease (DED). Understanding the mechanisms of DED caused by viral infection and its potential therapeutic strategies are crucial for clinical interventional advances in DED. This review summarizes the roles of viral infection in the pathogenesis of DED, applicable diagnostic and therapeutic strategies, and potential regions of future studies.</p>","PeriodicalId":23747,"journal":{"name":"Virulence","volume":"15 1","pages":"2289779"},"PeriodicalIF":5.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10761022/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138478722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
VirulencePub Date : 2024-12-01Epub Date: 2023-12-06DOI: 10.1080/21505594.2023.2289769
Massimiliano Lucidi, Daniela Visaggio, Antonella Migliaccio, Giulia Capecchi, Paolo Visca, Francesco Imperi, Raffaele Zarrilli
{"title":"Pathogenicity and virulence of <i>Acinetobacter baumannii</i>: Factors contributing to the fitness in healthcare settings and the infected host.","authors":"Massimiliano Lucidi, Daniela Visaggio, Antonella Migliaccio, Giulia Capecchi, Paolo Visca, Francesco Imperi, Raffaele Zarrilli","doi":"10.1080/21505594.2023.2289769","DOIUrl":"10.1080/21505594.2023.2289769","url":null,"abstract":"<p><p><i>Acinetobacter baumannii</i> is a common cause of healthcare-associated infections and hospital outbreaks, particularly in intensive care units. Much of the success of <i>A. baumannii</i> relies on its genomic plasticity, which allows rapid adaptation to adversity and stress. The capacity to acquire novel antibiotic resistance determinants and the tolerance to stresses encountered in the hospital environment promote <i>A. baumannii</i> spread among patients and long-term contamination of the healthcare setting. This review explores virulence factors and physiological traits contributing to <i>A. baumannii</i> infection and adaptation to the hospital environment. Several cell-associated and secreted virulence factors involved in <i>A. baumannii</i> biofilm formation, cell adhesion, invasion, and persistence in the host, as well as resistance to xeric stress imposed by the healthcare settings, are illustrated to give reasons for the success of <i>A. baumannii</i> as a hospital pathogen.</p>","PeriodicalId":23747,"journal":{"name":"Virulence","volume":"15 1","pages":"2289769"},"PeriodicalIF":5.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10732645/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138488576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
VirulencePub Date : 2024-12-01Epub Date: 2024-02-21DOI: 10.1080/21505594.2024.2310873
Célia Regina Malveste Ito, Mônica Oliveira Santos, Marcos de Oliveira Cunha, Kelliane Martins de Araújo, Guilherme Rocha Lino de Souza, Geovana Sôffa Rézio, Pollyanna Neta de Brito, Alana Parreira Costa Rezende, Jakeline Godinho Fonseca, Isabela Jubé Wastowski, José Daniel Gonçalves Vieira, Melissa Ameloti Gomes Avelino, Lilian Carla Carneiro
{"title":"Rhinovirus infection and co-infection in children with severe acute respiratory infection during the COVID-19 pandemic period.","authors":"Célia Regina Malveste Ito, Mônica Oliveira Santos, Marcos de Oliveira Cunha, Kelliane Martins de Araújo, Guilherme Rocha Lino de Souza, Geovana Sôffa Rézio, Pollyanna Neta de Brito, Alana Parreira Costa Rezende, Jakeline Godinho Fonseca, Isabela Jubé Wastowski, José Daniel Gonçalves Vieira, Melissa Ameloti Gomes Avelino, Lilian Carla Carneiro","doi":"10.1080/21505594.2024.2310873","DOIUrl":"10.1080/21505594.2024.2310873","url":null,"abstract":"<p><p>Rhinovirus causes respiratory tract infections in children and is found in co-infections. The objective of this research was to study the clinical profile of rhinovirus infection and co-infection in children with severe acute respiratory infection (SARI) during the COVID-19 pandemic period. We included 606 children ranging in age from 0.1 to 144 months of age from March 2020 to December 2021, hospitalized in the Pediatric Intensive Care Unit (PICU). The samples were collected by secretion from the nasopharynx region. A total of 259 children were tested positive for viral infection, 153 (59.07%) of them had a single rhinovirus infection and, 56 (36.6%) were aged between 60.1 and 144 months. Nine types of co-infections were identified and were found coinfection with three or more viruses (22/104, 21.15%). Observing the seasonality, the number of cases was similar between 2020 (49.53%) and 2021 (51.47%). Patients with a single infection (86.88%) and coinfection (67.30%) were more likely to have coughed. Patients with co-infection required the use of O2 for longer than those with a single rhinovirus infection. Hemogram results obtained from individuals with a single infection had higher levels of urea when compared to patients with co-infection with and other respiratory viruses. Multiple correspondence analyses indicated different clinical symptoms and comorbidities in patients with co-infection compared to those with single infection. The results found that the rhinovirus was much prevalent virus during the pandemic period and was found in co-infection with other virus types, what is important to diagnostic for the correct treatment of patients.</p>","PeriodicalId":23747,"journal":{"name":"Virulence","volume":"15 1","pages":"2310873"},"PeriodicalIF":5.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10885176/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139933146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Safety and immunogenicity of CoronaVac in healthy adults: A prospective observational multicenter real-world study in Henan Province, China.","authors":"Benchen Rao, Ling Wang, Mengzhao Yang, Hong Luo, Junyi Sun, Shanshuo Liu, Haiyu Wang, Xuemei Wang, Lei Li, Chengyu Yuan, Zujiang Yu, Zhigang Ren","doi":"10.1080/21505594.2024.2310450","DOIUrl":"10.1080/21505594.2024.2310450","url":null,"abstract":"<p><p>Vaccination has emerged as the primar approach for managing the COVID-19 pandemic. Despite certain clinical trials reporting the safety and immunogenicity of CoronaVac, additional multicenter real-world studies are still necessary. In this study, we recruited 506 healthy volunteers who were not infected with COVID-19 or vaccinated. Each participant provided peripheral blood samples three times: prior to the first dose of vaccine, prior to the second dose, and 8 weeks following the second dose. Ultimately, 388 participants completed the entire follow-up process. No serious adverse events were observed among any of the participants. Within 1 week of vaccination, 13.4% of participants experienced systemic adverse reactions, with fatigue (5.93%) and dizziness (3.35%) being the most frequent. Although some clinical indicators, including creatinine, significantly changed after vaccination (<i>p</i> < 0.05), the mean of all altered indicators remained within the normal range. The positive rates of neutralizing antibodies (NAb), IgG, and IgM were 12.3%, 18.85%, and 5.24% prior to the second dose, respectively; and 57.99%, 86.34%, and 2.32% at 8 weeks following the second dose, respectively. Additionally, seven indicators, such as sex, age, and BMI, were significantly correlated with NAb (<i>p</i> < 0.05). Finally, a prediction model was developed based on age, monocytes, and alanine aminotransferase (ALT) with an AUC value of 87.56% in the train set and 80.71% in the test set. This study demonstrated that safety and immunogenicity of CoronaVac were good. The prediction model based on the baseline clinical characteristics prior to vaccination can help to develop more suitable vaccination strategies.</p>","PeriodicalId":23747,"journal":{"name":"Virulence","volume":"15 1","pages":"2310450"},"PeriodicalIF":5.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10854291/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139703533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}