Macarena Giuliani, Camila Uboldi, Fernando Gaspar Dellatorre, Ezequiel Latour, Nora Marta Andrea Ponce, Carlos A. Stortz, Verónica Leticia Lassalle, Victoria Belen Ayala-Peña
{"title":"Undaria pinnatifida fucoidan extract inhibits activation of the NF-κB signaling pathway by herpes simplex virus type 1 and prevents amyloid-β peptide synthesis in retinal pigment epithelium cells","authors":"Macarena Giuliani, Camila Uboldi, Fernando Gaspar Dellatorre, Ezequiel Latour, Nora Marta Andrea Ponce, Carlos A. Stortz, Verónica Leticia Lassalle, Victoria Belen Ayala-Peña","doi":"10.1007/s00705-024-06212-2","DOIUrl":"10.1007/s00705-024-06212-2","url":null,"abstract":"<div><p>Neurodegenerative pathologies such as age-related macular degeneration currently have no cure or effective treatment. In this type of disease, the presence of amyloid-β peptides, oxidative stress, and inflammation trigger dysregulation of retinal pigment epithelial cells and progression toward the death of these cells, resulting in a loss of vision. The production of amyloid-β peptides, oxidative stress, and inflammation can be triggered in response to viral infections. Fucoidans are sulfated polysaccharides that are present in the cell walls of brown algae. There is a large body of literature reporting a wide range of biological properties of these compounds. In this study, we investigated whether <i>Undaria pinnatifida</i> fucoidan extract can prevent infection with herpes simplex virus type 1 and if the extract has antioxidant activity. We also evaluated whether, under viral infection conditions, the synthesis of amyloid-β peptide and NF-κB activation could be inhibited by the extract. The results showed for the first time that this extract can prevent viral infection in retinal pigment epithelial cells and that they can prevent the formation of amyloid-β peptide and the activation of the NF-κB pathway during viral infection. We also found that <i>Undaria pinnatifida</i> fucoidan extract has antioxidant activity and reduces the levels of reactive oxygen species. These data suggest that <i>Undaria pinnatifida</i> fucoidan extract might be effective for treating diseases triggered by viral infections, such as degenerative retinal diseases.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction: Molecular epidemiology and risk analysis for asymptomatic infection with feline enteric coronavirus in domestic and stray cats in Japan","authors":"Hitomi Kumano, Keisuke Nakagawa","doi":"10.1007/s00705-024-06174-5","DOIUrl":"10.1007/s00705-024-06174-5","url":null,"abstract":"","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142925416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ryo Matsumura, Daisuke Kobayashi, Takeo Yamauchi, Eunsil Park, Ayano Nishino, Ken Maeda, Shinji Kasai, Kyo Itoyama, Haruhiko Isawa
{"title":"Isolation and characterization of Iwanai Valley virus, a new tick-borne nairovirus from Ixodes ovatus ticks in Hokkaido, Japan","authors":"Ryo Matsumura, Daisuke Kobayashi, Takeo Yamauchi, Eunsil Park, Ayano Nishino, Ken Maeda, Shinji Kasai, Kyo Itoyama, Haruhiko Isawa","doi":"10.1007/s00705-024-06195-0","DOIUrl":"10.1007/s00705-024-06195-0","url":null,"abstract":"<div><p>Most members of the genus <i>Orthonairovirus</i>, represented by Crimean-Congo hemorrhagic fever virus and Nairobi sheep disease virus, are tick-borne, and some have become a public health concern in recent years. Here, we report the isolation and genetic and biological characterization of a new orthonairovirus, designated as \"Iwanai Valley virus\" (IWVV), from <i>Ixodes ovatus</i> ticks in Hokkaido, Japan. The amino acid sequence of the viral nucleoprotein (NP) was found to be 34–45% identical to those of known orthonairoviruses. Phylogenetic analysis based on amino acid sequences of the viral NP revealed that IWVV is closely related to human-pathogenic tick-borne orthonairoviruses, including Songling virus, Tacheng tick virus 1, and Yezo virus, which were recently discovered in East Asia. BHK-21 (Syrian hamster kidney), Vero (African green monkey kidney), SW-13 (human adrenal adenocarcinoma), HuH-7 (human hepatocellular carcinoma), and ISE6 (<i>Ixodes scapularis</i> tick embryo) cells were found to be susceptible to IWVV infection. Notably, several human-derived cell lines supported efficient replication of the virus. Our findings provide new insights into the diversity, evolutionary dynamics, and geographical distribution of orthonairoviruses in East Asia.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Molecular detection and evolutionary analysis of porcine epidemic diarrhea virus in Henan and Shaanxi provinces in China","authors":"Xiao Ma, Hongbo Cui, Yanfei Huang, Shijie Ma, Hongying Chen","doi":"10.1007/s00705-024-06201-5","DOIUrl":"10.1007/s00705-024-06201-5","url":null,"abstract":"<div><p>Porcine epidemic diarrhea (PED) caused by porcine epidemic diarrhea virus (PEDV) is a highly contagious and devastating enteric disease of pigs characterized by diarrhea, dehydration and 80-100% mortality in piglets, leading to substantial economic losses in the global swine industry. To investigate the prevalence of PEDV in Henan and Shaanxi provinces of China from 2022 to 2023, a total of 87 clinical samples (including intestinal tissues and faeces) were collected from diseased piglets during outbreaks of diarrhea on pig farms. Of the 87 samples, 32 (36.7%) tested positive for PEDV by RT-PCR, and the complete S gene from nine positive samples and the ORF3 gene from 11 positive samples, all from different farms, were subsequently sequenced. Phylogenetic analysis based on S gene sequences showed that most of the nine PEDV isolates sequenced belonged to the G2a clade and were most closely related to variant strains of PEDV. However, two strains from Shaanxi (CH-SX1-2023 and CH-SX2-2023) belonged to the G2b subtype, and one strain from Henan (CH-HNC2-2023) belonged to the S-INDEL branch. Amino acid sequence comparisons showed that there were several amino acid substitutions and deletions in the S and ORF3 proteins of the PEDV strains from Henan and Shaanxi compared to the CV777 vaccine strain. Some of these mutations occurred in neutralizing epitopes, particularly COE and might therefore be associated with the ineffective protection provided by existing vaccines. These results will provide insights for better understanding of the epidemiological situation of PEDV in Henan and Shaanxi provinces between 2022 and 2023, and this information also contributes to the development of new strategies for the prevention and control of variant PEDV strains.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142833815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yusmel Sordo-Puga, Elaine Santana-Rodríguez, Danny Pérez-Pérez, Mary Karla Méndez-Orta, Talía Sardina-González, Milagros Vargas-Hernández, Carlos A. Duarte, María Pilar Rodríguez-Moltó, Mario P. Estrada, Aruna Ambagala, Marisela Suárez-Pedroso
{"title":"Porvac® subunit vaccine induces neutralizing antibodies against all three main classical swine fever virus genotypes","authors":"Yusmel Sordo-Puga, Elaine Santana-Rodríguez, Danny Pérez-Pérez, Mary Karla Méndez-Orta, Talía Sardina-González, Milagros Vargas-Hernández, Carlos A. Duarte, María Pilar Rodríguez-Moltó, Mario P. Estrada, Aruna Ambagala, Marisela Suárez-Pedroso","doi":"10.1007/s00705-024-06198-x","DOIUrl":"10.1007/s00705-024-06198-x","url":null,"abstract":"<div><p>Classical swine fever (CSF) is endemic in Cuba and is one of the major health problems of the Cuban swine industry. The current efforts to control the disease in Cuba include vaccination with Porvac<sup>®</sup>, a subunit marker vaccine. Although the efficacy of Porvac against CSF virus (CSFV) subgenotype 1.4 has been extensively documented, little is known about the ability of the antibodies induced by this vaccine to neutralize other CSFV genotypes. In this study, sera collected from three pigs vaccinated with Porvac were able to efficiently neutralize CSFV strains belonging to genotypes 1, 2, and 3. The findings from this study indicate that additional in vivo studies are warranted to confirm the ability of this vaccine to protect pigs against CSFV genotypes 2 and 3.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Complete genome sequence of a novel iflavirus from wheat sawfly (Dolerus tritici)","authors":"Jiashu Guo, Wenwen Liu, Chen Chen, Zhongtian Xu, Frederic Francis, Xifeng Wang","doi":"10.1007/s00705-024-06206-0","DOIUrl":"10.1007/s00705-024-06206-0","url":null,"abstract":"<div><p>Little is known about the insect viruses in wheat sawfly, <i>Dolerus tritici</i>, which is an important agricultural insect feeding on wheat leaves. Here, we used RNA sequencing to identify a novel single positive-strand RNA virus from the larvae of wheat sawfly collected in northern China and then determined its complete genome sequence by rapid amplification of cDNA ends. The complete genome is 9,594 nt in length, including a polyA tail at its 3′ terminus, and it is predicted to encode a 326.3-kDa polyprotein. Phylogenetic analysis based on deduced amino acid sequences of the polyprotein revealed that this RNA virus clustered in a clade with deformed wing virus of the genus <i>Iflavirus</i>, family <i>Iflaviridae.</i> The full genome of this RNA virus shows 42.0–50.0% sequence identity with other iflaviruses. Comparisons of amino acid sequences showed that the coat protein of this RNA virus is most similar to that of slow bee paralysis virus, with 33.6% identity, suggesting that this virus is a new member in the genus <i>Iflavirus</i>. Thus, we have tentatively designated it as “Dolerus tritici iflavirus 1” (DtIV1). To our knowledge, this is the first report of an insect virus in wheat sawfly.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gabriela Espíndola Birlem, Alexandre Sita, Juliana Schons Gularte, Deivid de Souza da Silva, Meriane Demoliner, Paula Rodrigues de Almeida, Juliane Deise Fleck, Fernando Rosado Spilki, Severino Silvano dos Santos Higino, Sergio Santos de Azevedo, Matheus Nunes Weber
{"title":"Detection of a novel hepacivirus in wild cavies (Cavia aperea aperea)","authors":"Gabriela Espíndola Birlem, Alexandre Sita, Juliana Schons Gularte, Deivid de Souza da Silva, Meriane Demoliner, Paula Rodrigues de Almeida, Juliane Deise Fleck, Fernando Rosado Spilki, Severino Silvano dos Santos Higino, Sergio Santos de Azevedo, Matheus Nunes Weber","doi":"10.1007/s00705-024-06199-w","DOIUrl":"10.1007/s00705-024-06199-w","url":null,"abstract":"<div><p><i>Hepacivirus</i> is a genus of RNA viruses within the family <i>Flaviviridae</i> of which hepatitis C virus (HCV) is the prototype. Several hepaciviruses have been identified in mammals, including rodents of multiple families. Each rodent hepacivirus described so far has been found only in members of a single rodent species. Here, we report the discovery and characterization of a putative new genotype of an unclassified rodent hepacivirus in a wild cavy (<i>Cavia aperea aperea</i>) that was reported previously in <i>Proechimys semispinosus</i>. This virus was detected in one out of 14 (7.14%) wild cavy sera tested by RT-PCR. The complete genome sequence was obtained by high-throughput sequencing using an Illumina MiSeq platform. This is the first report of a hepacivirus in a member of the family Caviidae. Our findings show that members of different rodent species and even families can be infected by hepaciviruses of the same species. The identification and characterization of novel hepaciviruses might lead to the discovery of reservoirs of viruses that are genetically related to human pathogens, and this can help to elucidate the evolutionary origins of HCV and other hepaciviruses.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142826166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kun Zhang, Ge Mu, Weilan Wu, Peng Wang, Jun Shang, Changquan Li, Qingchao Deng, Shouguo Fang, Haoran Wang, Songbai Zhang
{"title":"An isolate of human blood-associated partitivirus naturally infects the phytopathogenic fungus Bipolaris maydis","authors":"Kun Zhang, Ge Mu, Weilan Wu, Peng Wang, Jun Shang, Changquan Li, Qingchao Deng, Shouguo Fang, Haoran Wang, Songbai Zhang","doi":"10.1007/s00705-024-06204-2","DOIUrl":"10.1007/s00705-024-06204-2","url":null,"abstract":"<div><p>Human blood-associated partitivirus (HuBPV) was first identified through metagenomic analysis of serum samples from two Peruvians, but its natural host remains unknown. Here, we report the detection of an HuBPV strain (HuBPV-Bm) in the phytopathogenic fungus <i>Bipolaris maydis</i> strain HN11 in Hubei Province, China. The dsRNA1 and dsRNA2 of HuBPV-Bm show more than 97.6% and 98.8% nucleotide sequence identity, respectively, to those from the metagenomically discovered HuBPV strain (HuBPV-M). Notably, HuBPV-Bm contains a third dsRNA segment that was not reported for HuBPV-M. All mycelia derived from individual asexual spores of HN11 tested positive for HuBPV-Bm, as did nine out of 293 <i>B. maydis</i> strains collected across Hubei.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142816904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Characterization of the complete genome of a novel allexivirus infecting Sauropus androgynus in China","authors":"Li-Juan Zhu, Lan-Yi Su, Xing Chen, Shifang Pan, Fagang Xia, Yan-Hong Han, Zhongtian Xu, Qian Xu","doi":"10.1007/s00705-024-06202-4","DOIUrl":"10.1007/s00705-024-06202-4","url":null,"abstract":"<div><p>A new virus was found in <i>Sauropus androgynus</i> plants with curled and yellow leaves in China and tentatively named \"Sauropus androgynus virus\" (SaV). The complete genome of SaV is an 8007-nucleotide-long (+)RNA, excluding the 3’-poly(A) tail, and contains five open reading frames. Both pairwise comparisons and phylogenetic analysis of the putative replicase and coat proteins showed that SaV has a high level of sequence similarity to members of the genus <i>Allexivirus</i> of the family <i>Alphaflexiviridae</i>. This is the first report of an allexivirus in <i>Sauropus androgynus.</i></p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arvind Varsani, Andrew Hopkins, Michael C Lund, Mart Krupovic
{"title":"2024 taxonomic update for the families Naryaviridae, Nenyaviridae, and Vilyaviridae","authors":"Arvind Varsani, Andrew Hopkins, Michael C Lund, Mart Krupovic","doi":"10.1007/s00705-024-06186-1","DOIUrl":"10.1007/s00705-024-06186-1","url":null,"abstract":"<div><p>The families <i>Naryaviridae</i> (order <i>Rivendellvirales</i>), <i>Nenyaviridae</i> (order <i>Rohanvirales</i>), and <i>Vilyaviridae</i> (order <i>Cirlivirales</i>), all within the class <i>Arfiviricetes</i> of the phylum <i>Cressdnaviricota</i>, include single-stranded DNA viruses associated with protozoan parasites of the genera <i>Entamoeba</i> and <i>Giardia</i> as well as viruses found in various environmental samples, also likely infecting protozoans. Here, we provide a taxonomic update for these three families, which were recently expanded with multiple new members. In particular, we established seven new genera and nine new species in the family <i>Naryaviridae</i>, one new genus with one new species in the family <i>Nenyaviridae</i>, and three new genera and nine new species in the family <i>Vilyaviridae.</i> We also summarize the genomic properties and protein characteristics, including conserved motifs of the rolling-circle replication initiation proteins, of the viruses in the three families. Notably, the high GC content of vilyavirids (51–61%) and considerably lower GC content of naryavirids and nenyavirids (33–44%) appear to represent an adaptation to their hosts, <i>Giardia</i> and <i>Entamoeba</i> species<i>,</i> respectively.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142817093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}