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Sheeppox virus genome sequences from the European outbreaks in Spain, Bulgaria, and Greece in 2022–2024 2022-2024 年在西班牙、保加利亚和希腊爆发的欧洲 Sheeppox 病毒基因组序列
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-30 DOI: 10.1007/s00705-024-06165-6
Floris C. Breman, Andy Haegeman, Wannes Philips, Nina Krešić, Stefan Hoffman, Sigrid C. J. De Keersmaecker, Nancy H. C. Roosens, Montserrat Agüero, Ruben Villalba, Aleksandra Miteva, Emiliya Ivanova, Konstantia E. Tasioudi, Serafeim C. Chaintoutis, Aikaterini Kirtzalidou, Nick De Regge
{"title":"Sheeppox virus genome sequences from the European outbreaks in Spain, Bulgaria, and Greece in 2022–2024","authors":"Floris C. Breman,&nbsp;Andy Haegeman,&nbsp;Wannes Philips,&nbsp;Nina Krešić,&nbsp;Stefan Hoffman,&nbsp;Sigrid C. J. De Keersmaecker,&nbsp;Nancy H. C. Roosens,&nbsp;Montserrat Agüero,&nbsp;Ruben Villalba,&nbsp;Aleksandra Miteva,&nbsp;Emiliya Ivanova,&nbsp;Konstantia E. Tasioudi,&nbsp;Serafeim C. Chaintoutis,&nbsp;Aikaterini Kirtzalidou,&nbsp;Nick De Regge","doi":"10.1007/s00705-024-06165-6","DOIUrl":"10.1007/s00705-024-06165-6","url":null,"abstract":"<div><p>In 2022-2024, three outbreaks of sheeppox (SPP) were reported in the European Union. These occurred in Spain, Bulgaria, and Greece and had serious economic consequences due to animal losses and trade restrictions. Five sheeppox virus (SPPV) whole-genome sequences (WGSs) were determined from samples collected during these outbreaks and analyzed in the context of all other published WGSs. Sheeppox virus strains can be divided in two, or possibly three, main groups. The isolates from the recent outbreaks belong to clade A2, which includes strains historically circulating in the Middle East and Northern Africa. Sequence divergence was low among the isolates that caused the recent European outbreaks. These results highlight the need for more regular and dense surveillance in under-sampled areas and the use of WGS to increase the chance of pinpointing the origin of an introduction, identifying potential introduction routes, and providing insights into SPPV evolution.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00705-024-06165-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prim-O-glucosylcimifugin alleviates influenza virus-induced pneumonia in mice by inhibiting the TGF-β1/PI3KCD/MSK2/RELA signalling pathway Prim-O-glucosylcimifugin通过抑制TGF-β1/PI3KCD/MSK2/RELA信号通路,缓解流感病毒诱发的小鼠肺炎。
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-29 DOI: 10.1007/s00705-024-06158-5
Yu-Jia Wu, Wen-Wen Feng, Zhen-Lin Wu, Yue-Yao Zhang, Jin-Yuan Liu, Pei-Ping Xu
{"title":"Prim-O-glucosylcimifugin alleviates influenza virus-induced pneumonia in mice by inhibiting the TGF-β1/PI3KCD/MSK2/RELA signalling pathway","authors":"Yu-Jia Wu,&nbsp;Wen-Wen Feng,&nbsp;Zhen-Lin Wu,&nbsp;Yue-Yao Zhang,&nbsp;Jin-Yuan Liu,&nbsp;Pei-Ping Xu","doi":"10.1007/s00705-024-06158-5","DOIUrl":"10.1007/s00705-024-06158-5","url":null,"abstract":"<div><p>Prim-O-glucosylcimifugin (POG) is a chromone derived primarily from <i>Saposhnikovia divaricata (Turcz) Schischk</i> and <i>Cimicifuga simplex</i>. Previous research has shown that POG possesses antibacterial, anticancer, anti-inflammatory, antioxidant, anticonvulsant, antipyretic, and analgesic properties. However, the specific impact of POG on influenza-virus-induced pneumonia is not well understood. In this study, we investigated the protective effects and underlying mechanisms of POG in pneumonia caused by influenza A virus (IAV). <i>In vitro</i>, POG was found to have a protective effect against infections caused by the respiratory viruses respiratory syncytial virus (RSV), human coronavirus OC43, and influenza A virus. POG inhibited A/FM/1/1947(H1N1) infection with an EC<sub>50</sub> ranging from 3.01 to 10.43 <i>in vitro</i>. Intraperitoneal infection of mice with POG at a dose of 5 or 10 mg/kg resulted in a reduction in IAV-induced pneumonia, as evidenced by decreased pulmonary edema, improved lung histopathology, and reduced inflammatory cell accumulation. At the higher dose (10 mg/kg), POG treatment significantly increased survival rates, decreased viral titres in the lungs, improved lung histology, and reduced lung inflammation in IAV-infected mice. POG also effectively alleviated pulmonary fibrosis by reducing the levels of fibrotic markers (hydroxyproline [Hyp] and transforming growth factor β1 [TGF-β1]) and suppressing the expression of alpha smooth muscle actin (α-SMA), p focal adhesion kinase (p-FAK), and TGF-β1 in lung tissues. In addition, POG inhibited the expression of the RELA proto-oncogene (RELA), phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit delta (PIK3CD), and mitogen- and stress-activated protein kinase 2 (MSK2) in lung tissues. These results indicate that POG may have a protective effect against IAV-induced pneumonia by downregulating the TGF-β1/PI3KCD/MSK2/RELA signalling pathway in the lungs.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142520864","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}
引用次数: 0
Molecular characterization and phylogenetic analysis of infectious laryngotracheitis virus isolates from commercial chicken flocks in Turkey 土耳其商品鸡群中传染性喉气管炎病毒分离物的分子特征和系统发育分析。
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-25 DOI: 10.1007/s00705-024-06153-w
Özlem Kardoğan, Seyyide Sarıçam İnce
{"title":"Molecular characterization and phylogenetic analysis of infectious laryngotracheitis virus isolates from commercial chicken flocks in Turkey","authors":"Özlem Kardoğan,&nbsp;Seyyide Sarıçam İnce","doi":"10.1007/s00705-024-06153-w","DOIUrl":"10.1007/s00705-024-06153-w","url":null,"abstract":"<div><p>Infectious laryngotracheitis virus (ILTV) causes an acute and highly contagious respiratory disease in poultry. Live-attenuated vaccines are generally used to control and prevent infectious laryngotracheitis (ILT). However, these vaccines can revert to a virulent form due to multiple passages and thereby become an ILT source. Hence, monitoring of ILTV in the field through molecular characterization is critically important for controlling infection and differentiating circulating isolates. In this study, we genotypically characterized and phylogenetically analyzed eight ILTV isolates from chicken flocks located in four different cities of Turkey between 2019 and 2022. For all isolates, we analyzed two regions of the infected cell protein 4 gene (ICP4-1 and ICP4-2) and the thymidine kinase (TK) gene. The isolates were 100%, 100%, and 99.8–100% identical to each other in the ICP4-1 and ICP4-2 gene fragments and the TK gene, respectively. None of the ICP4 sequences had a deletion at nt 272–283, confirming that they were field isolates. None of the isolates were predicted to have a T252M mutation in the thymidine kinase, suggesting that they have low virulence. The isolates were 100%, 99.36%, and 99.91% identical to Turkish ILTV isolates in their ICP4-1, ICP4-2, and TK gene region, respectively. Phylogenetic analysis based on the ICP4-1 and TK genes confirmed that the ILTV isolates are closely related to Turkish ILTV isolates. This suggests that these ILTVs were endemic isolates, which in turn suggests that the ILTV isolates circulating in Turkey were evolutionarily close, originated from the field, and had low virulence.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493702","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}
引用次数: 0
Molecular epidemiology and risk analysis for asymptomatic infection with feline enteric coronavirus in domestic and stray cats in Japan 日本家猫和流浪猫无症状感染猫肠道冠状病毒的分子流行病学和风险分析。
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-25 DOI: 10.1007/s00705-024-06164-7
Hitomi Kumano, Keisuke Nakagawa
{"title":"Molecular epidemiology and risk analysis for asymptomatic infection with feline enteric coronavirus in domestic and stray cats in Japan","authors":"Hitomi Kumano,&nbsp;Keisuke Nakagawa","doi":"10.1007/s00705-024-06164-7","DOIUrl":"10.1007/s00705-024-06164-7","url":null,"abstract":"<div><p>Feline enteric coronavirus (FECoV) causes subclinical infection; therefore, asymptomatic cats can act as transmitters of FECoV. However, there have been few studies on the prevalence of FECoV in asymptomatic cats in Japan. In this study, we used a nested RT-PCR assay targeting the S gene of FECoV to test 319 normal fecal samples from stray cats and domestic cats in Japan between 2019 and 2020. Seventy-five samples tested positive, and the presence of FECoV in domestic cats was significantly associated with age (<i>p</i> &lt; 0.01), but not with gender, breed, or living in a multi-cat household. The results provide insights into the current prevalence of FECoV in asymptomatic cats in Japan.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493703","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}
引用次数: 0
Epidemiology of human metapneumovirus in Taiwan from 2013 to 2023 2013年至2023年台湾人类偏肺病毒流行病学。
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-23 DOI: 10.1007/s00705-024-06147-8
Su-Lin Yang, Tai-Yuan Chiu, Kun-Lin Tsai, Chung-Hao Li, Jyh-Yuan Yang, Ming-Tsan Liu, Fang-Tzy Wu
{"title":"Epidemiology of human metapneumovirus in Taiwan from 2013 to 2023","authors":"Su-Lin Yang,&nbsp;Tai-Yuan Chiu,&nbsp;Kun-Lin Tsai,&nbsp;Chung-Hao Li,&nbsp;Jyh-Yuan Yang,&nbsp;Ming-Tsan Liu,&nbsp;Fang-Tzy Wu","doi":"10.1007/s00705-024-06147-8","DOIUrl":"10.1007/s00705-024-06147-8","url":null,"abstract":"<div><p>Human metapneumovirus (HMPV) is a member of the genus <i>Metapneumovirus</i> in the family <i>Pneumoviridae</i> of the order <i>Mononegavirales</i> that can cause upper and lower respiratory tract disease. This retrospective study describes the epidemiology of hMPV based on community viral surveillance results from sentinel sites across Taiwan from 2013 to 2023. A total of 114 hMPV strains were isolated and analyzed to assess viral evolution through sequencing of their fusion protein genes. This study revealed that hMPV cases occur almost year-round in Taiwan, with a peak occurring during spring (March to May). Of the 114 infected patients, 68.4% were children under 4 years old. The geographical distribution of hMPV positivity was highest in Penghu County, followed by Changhua County and Hsinchu County. The clinical symptoms of hMPV infection are nonspecific, with fever (56.1%), cough (44.7%), rhinorrhea (21.1%), and sore throat (14.9%) being the most common. However, a few patients also developed severe central nervous system symptoms (1.8%) or dyspnea (0.9%). Phylogenetic analysis revealed genetic diversity among the 114 isolated hMPV strains, with the A2 lineage (57.9%) being the most frequently observed, followed by the B2 lineage (33.3%), in the Taiwanese community from 2013 to 2023. In conclusion, hMPV causes a serious acute respiratory disease in Taiwan that should not be neglected. Further epidemiological surveillance and investigations of the clinical characteristics of hMPV should be performed continually for prevention and control of this virus.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499400/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization and genomic analysis of phage vB_SmaP_c9-N, a novel Stenotrophomonas maltophilia podophage with antibiofilm activity 具有抗生物膜活性的新型嗜麦芽僵单胞菌荚膜噬菌体 vB_SmaP_c9-N 的特征和基因组分析
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-21 DOI: 10.1007/s00705-024-06148-7
Yaosheng Xi, Wei Zhou, Xiao Li, Xiangru Lan, Qili Yang, Yu-Ping Huang
{"title":"Characterization and genomic analysis of phage vB_SmaP_c9-N, a novel Stenotrophomonas maltophilia podophage with antibiofilm activity","authors":"Yaosheng Xi,&nbsp;Wei Zhou,&nbsp;Xiao Li,&nbsp;Xiangru Lan,&nbsp;Qili Yang,&nbsp;Yu-Ping Huang","doi":"10.1007/s00705-024-06148-7","DOIUrl":"10.1007/s00705-024-06148-7","url":null,"abstract":"<div><p><i>Stenotrophomonas maltophilia</i> strains are increasingly emerging as multidrug-resistant pathogens. Moreover, <i>S. maltophilia</i> commonly produces biofilms that enhance antibiotic resistance in bacteria. Phages are effective alternative drugs for treating <i>S. maltophilia</i> infections. In this study, the lytic phage vB_SmaP_c9-N (abbreviated as Φc9-N), which is specific for <i>S. maltophilia</i>, was isolated from Nanhu Lake, Wuhan, China. Electron microscopy observation revealed that Φc9-N is a podophage<i>.</i> Φc9-N is stable over a wide pH range, from pH 4 to 10, and its activity did not change after storage at 4 °C for 2 months. The latency period of Φc9-N is 5 min, and its outbreak period is 35 min. Antibacterial tests showed that Φc9-N could effectively inhibit the growth of <i>S. maltophilia</i> c24. Moreover, the biofilm production of <i>S. maltophilia</i> c24 decreased when Φc9-N was administered either to the forming biofilm or to the mature biofilm. These results suggest that Φc9-N has application potential in clinical treatment. The genome of Φc9-N is a dsDNA of 43,170 bp with 55 putative unidirectional genes, 18 of which were assigned putative functions, while other genes encoded hypothetical proteins. Genome sequence comparisons and phylogenetic analysis indicated that Φc9-N represents a new species, and, together with the <i>Stenotrophomonas</i> phages BUCT700, BUCT703, BUCT598, and vB_SmaS_P15, can be included in the newly proposed genus “<i>Maltovirus</i>” in the family <i>Autographiviridae</i>.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452872","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}
引用次数: 0
Entry of Newcastle disease virus into host cells: an interplay among viral and host factors 新城疫病毒进入宿主细胞:病毒和宿主因素之间的相互作用
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-21 DOI: 10.1007/s00705-024-06157-6
Jing Deng, Yongzhong Cao, Zenglei Hu
{"title":"Entry of Newcastle disease virus into host cells: an interplay among viral and host factors","authors":"Jing Deng,&nbsp;Yongzhong Cao,&nbsp;Zenglei Hu","doi":"10.1007/s00705-024-06157-6","DOIUrl":"10.1007/s00705-024-06157-6","url":null,"abstract":"<div><p>Newcastle disease (ND) is a major burden for the poultry industry worldwide, especially in developing countries. The virus that causes this disease, Newcastle disease virus (NDV), is also an effective vector for the development of novel human and animal vaccines and a promising oncolytic virus for cancer therapy. The mechanism of entry of NDV into host cells is of particular interest because it has a significant impact on the infectivity, host range, and pathogenicity of the virus. Here, we present an overview of the entry of NDV into cells, focusing on the interplay among viral and host factors involved in this process. In particular, recent research revealing novel features of NDV attachment to cells, the identification of viral and cellular components that regulate binding of the virus to cells, and the emerging role of novel cellular routes of NDV entry are discussed. More importantly, some of the remaining gaps in our understanding of NDV entry and some fundamental questions for research efforts in the future are also highlighted.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452873","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}
引用次数: 0
Isolation and characterization of Yersinia phage fMtkYen3-01 耶尔森氏菌噬菌体 fMtkYen3-01 的分离和特征描述
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-19 DOI: 10.1007/s00705-024-06149-6
Sophia Goladze, Sheetal Patpatia, Henni Tuomala, Matti Ylänne, Nino Gachechiladze, Daniel de Oliveira Patricio, Mikael Skurnik, Lotta-Riina Sundberg
{"title":"Isolation and characterization of Yersinia phage fMtkYen3-01","authors":"Sophia Goladze,&nbsp;Sheetal Patpatia,&nbsp;Henni Tuomala,&nbsp;Matti Ylänne,&nbsp;Nino Gachechiladze,&nbsp;Daniel de Oliveira Patricio,&nbsp;Mikael Skurnik,&nbsp;Lotta-Riina Sundberg","doi":"10.1007/s00705-024-06149-6","DOIUrl":"10.1007/s00705-024-06149-6","url":null,"abstract":"<div><p><i>Yersinia enterocolitica</i> causes yersiniosis, the third most common gastrointestinal infection in humans throughout Europe. The emergence of multidrug resistance and the lack of effective new antibiotics have drawn attention to phage therapy as a treatment option. Here, we report the complete genome sequence of phage fMtkYen3-01, which infects <i>Y. enterocolitica</i> serotype O:3 strains. This phage has a genome 40,415 bp in length with 45.1% GC content and 49 predicted genes. fMtkYen3-01 infected 9.5% of the 42 <i>Y. enterocolitica</i> strains tested and showed stability at 25–40 °C, as well as pH 5.0–10.0. These results suggest the therapeutic potential of this phage.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00705-024-06149-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular characterization of a novel mycotombus‑like virus isolated from the phytopathogenic fungus Nigrospora oryzae 从植物病原真菌 Nigrospora oryzae 中分离出的新型类霉菌病毒的分子特征
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-18 DOI: 10.1007/s00705-024-06150-z
Zhijuan Yang, Mingliang Fei, Guicheng Wu, Yansuobao Xiang, Jie Zhong, Jia En Su, Yi Chen
{"title":"Molecular characterization of a novel mycotombus‑like virus isolated from the phytopathogenic fungus Nigrospora oryzae","authors":"Zhijuan Yang,&nbsp;Mingliang Fei,&nbsp;Guicheng Wu,&nbsp;Yansuobao Xiang,&nbsp;Jie Zhong,&nbsp;Jia En Su,&nbsp;Yi Chen","doi":"10.1007/s00705-024-06150-z","DOIUrl":"10.1007/s00705-024-06150-z","url":null,"abstract":"<div><p>In this study, we identified a new mycotombus-like mycovirus from the phytopathogenic fungus <i>Nigrospora oryzae</i>, which was tentatively designated as \"Nigrospora oryzae umbra-like virus 1\" (NoULV1). The complete genome of NoULV1 is 3,381 nt long, containing two open reading frames (ORF1 and ORF2). ORF1 encodes a hypothetical protein with an unknown function, while ORF2 encodes an RNA-dependent RNA polymerase (RdRp) with a conserved RdRp domain containing a metal-binding ‘GDN’ triplet in motif C, which is distinct from the ‘GDD’ motif found in most + ssRNA mycoviruses. A homology search revealed that the RdRp encoded by ORF2 was similar to the RdRp of umbra-like mycoviruses. Phylogenetic analysis based on the RdRp indicated that NoULV1 was grouped into a clade together with umbra-like mycoviruses belonging to the proposed family “<i>Mycotombusviridae</i>”.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451144","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}
引用次数: 0
Generation of canine neutralizing antibodies against canine parvovirus by single B cell antibody technology 利用单 B 细胞抗体技术产生犬细小病毒中和抗体
IF 2.5 4区 医学
Archives of Virology Pub Date : 2024-10-18 DOI: 10.1007/s00705-024-06156-7
Zhihao Wang, Pengfei Shi, Sheng Wang, Zhipeng Lin, Zhichen Wang, Chengguang Zhang, Ling Zhao, Sizhu Suolang, Jiahui Zou, Hongbo Zhou
{"title":"Generation of canine neutralizing antibodies against canine parvovirus by single B cell antibody technology","authors":"Zhihao Wang,&nbsp;Pengfei Shi,&nbsp;Sheng Wang,&nbsp;Zhipeng Lin,&nbsp;Zhichen Wang,&nbsp;Chengguang Zhang,&nbsp;Ling Zhao,&nbsp;Sizhu Suolang,&nbsp;Jiahui Zou,&nbsp;Hongbo Zhou","doi":"10.1007/s00705-024-06156-7","DOIUrl":"10.1007/s00705-024-06156-7","url":null,"abstract":"<div><p>Canine parvovirus (CPV) is a significant threat to canines and is widely distributed worldwide. While vaccination is currently the most effective preventive measure, existing vaccines are not able to offer comprehensive and dependable protection against CPV infection. Hence, there is a need to explore alternative or complementary strategies to tackle this problem. In this study, we present an approach for the efficient screening of canine antibodies targeting CPV using a single B cell antibody technique. We sorted single IgM<sup>−</sup> IgG<sup>+</sup> CPV<sup>+</sup> B cells from canine peripheral blood mononuclear cells using fluorescence-activated cell sorting (FACS) and obtained the variable region genes of heavy and light chains (VH and VL) by nested PCR amplification. Canine monoclonal antibodies were expressed in HEK293 cells, and a total of 60 antibodies were obtained, five of which demonstrated neutralizing activity against CPV. Those findings demonstrate the effectiveness of the method for obtaining canine monoclonal antibodies, which in turn aids in the identification and screening of neutralizing antibodies against various canine pathogens.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"169 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451128","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}
引用次数: 0
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