Abstract:
:Emerging studies have indicated that some penaeidins restrict virus infection; however, the mechanism(s) involved are poorly understood. In the present study, we uncovered that penaeidins are a novel family of antiviral effectors against white spot syndrome virus (WSSV), which antagonize the envelope proteins to block viral entry. We found that the expression levels of four identified penaeidins from Litopenaeus vannamei, including BigPEN, PEN2, PEN3, and PEN4, were significantly induced in hemocytes during the early stage of WSSV infection. Knockdown of each penaeidin in vivo via RNA interference resulted in elevated viral loads and rendered shrimp more susceptible to WSSV, while the survival rate was rescued via the injection of recombinant penaeidins. All penaeidins, except PEN4, were shown to interact with several envelope proteins of WSSV, and all four penaeidins were observed to be located on the outer surface of the WSSV virion. Co-incubation of each recombinant penaeidin with WSSV inhibited virion internalization into hemocytes. More importantly, we found that PEN2 competitively bound to the envelope protein VP24 to release it from polymeric immunoglobulin receptor (pIgR), the cellular receptor required for WSSV infection. Moreover, we also demonstrated that BigPEN was able to bind to VP28 of WSSV, which disrupted the interaction between VP28 and Rab7 - the Rab GTPase that contributes to viral entry by binding with VP28. Taken together, our results demonstrated that penaeidins interact with the envelope proteins of WSSV to block multiple viral infection processes, thereby protecting the host against WSSV.
journal_name
Emerg Microbes Infectjournal_title
Emerging microbes & infectionsauthors
Xiao B,Fu Q,Niu S,Zhu P,He J,Li Cdoi
10.1080/22221751.2020.1729068subject
Has Abstractpub_date
2020-12-01 00:00:00pages
390-412issue
1issn
2222-1751journal_volume
9pub_type
杂志文章abstract::Clostridium difficile is the major causative agent of nosocomial antibiotic-associated diarrhea. In a 2009 outbreak of C. difficile-associated diarrhea that was recorded in a major Costa Rican hospital, the hypervirulent NAP1 strain (45%) predominated together with a local genotype variant (NAPCR1, 31%). Both strains ...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/emi.2016.38
更新日期:2016-05-11 00:00:00
abstract::Interleukin 17 (IL-17) and its closest relative, IL-17F, have recently drawn much attention in the field of immunology. IL-17 and IL-17F are expressed by a distinct type of T cells, T helper 17 cells and certain other lymphocytes. These cytokines play key regulatory roles in host defense and inflammatory diseases. In ...
journal_title:Emerging microbes & infections
pub_type: 杂志文章,评审
doi:10.1038/emi.2013.58
更新日期:2013-09-01 00:00:00
abstract::Three leading infectious disease experts in China were invited to share their bedside observations in the management of COVID-19 patients. Professor Taisheng Li was sent to Wuhan to provide frontline medical care. He depicts the clinical course of SARS-CoV-2 infection. Furthermore, he observes the significant abnormal...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2020.1741327
更新日期:2020-12-01 00:00:00
abstract::We report the first case of severe pneumonia due to co-infection with the emerging avian influenza A (H5N1) virus subclade 2.3.2.1 and Mycoplasma pneumoniae. The patient was a returning traveller who had visited a poultry market in South China. We then review the epidemiology, virology, interspecies barrier limiting p...
journal_title:Emerging microbes & infections
pub_type: 杂志文章,评审
doi:10.1038/emi.2012.24
更新日期:2012-09-01 00:00:00
abstract::Influenza viruses of the H4 subtype are widespread in wild birds, circulate in domestic poultry, readily infect mammals, and tolerate the insertion of a polybasic cleavage site. In addition, serological evidence suggests that humans working with poultry are exposed to these viruses. While H4 viruses are not of immedia...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2018.1564369
更新日期:2019-01-01 00:00:00
abstract::A novel equine parvovirus, equine parvovirus-hepatitis (EqPV-H), was first discovered in a horse that died of equine serum hepatitis in the USA in 2018. EqPV-H was shown to be a novel etiological agent associated with equine serum hepatitis. Following this initial report, no additional studies on EqPV-H have been publ...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/s41426-018-0174-2
更新日期:2018-10-23 00:00:00
abstract::Zika virus (ZIKV) has become a threat to global health since the outbreak in Brazil in 2015. Although ZIKV is generally considered an Aedes-transmitted pathogen, new evidence has shown that parts of the virus closely resemble Culex-transmitted viruses. Therefore, it is important to evaluate the competence of Culex spe...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/emi.2016.102
更新日期:2016-09-07 00:00:00
abstract::Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae (KPC-KP) have disseminated worldwide and emerged as major threats to public health. Of epidemiological significance, the international pandemic of KPC-KP is primarily associated with CG258 isolates and blaKPC-IncF plasmids. CRISPR-Cas system is an adapt...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2020.1763209
更新日期:2020-12-01 00:00:00
abstract::Influenza has been a long-running health problem and novel antiviral drugs are urgently needed. In pre-clinical studies, we demonstrated broad antiviral activity of D, L-lysine-acetylsalicylate glycine (LASAG) against influenza virus (IV) in cell culture and protection against lethal challenge in mice. LASAG is a comp...
journal_title:Emerging microbes & infections
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1038/s41426-018-0023-3
更新日期:2018-03-07 00:00:00
abstract::The progressive anthropization of caves for food resources or economic purposes increases human exposure to pathogens that naturally infect cave-dwelling animals. The presence of wild or domestic animals in the immediate surroundings of caves also may contribute to increasing the risk of emergence of such pathogens. S...
journal_title:Emerging microbes & infections
pub_type: 杂志文章,评审
doi:10.1038/emi.2017.6
更新日期:2017-04-12 00:00:00
abstract::The Beijing genotype comprises a highly disseminated strain type that is frequently associated with multidrug resistant (MDR) tuberculosis (TB) and increased transmissibility but, countries such as Portugal and Guinea-Bissau fall outside the regions phylogeographically associated with this specific genotype. Neverthel...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2020.1774425
更新日期:2020-12-01 00:00:00
abstract::Unlike those infected by H5N1, birds infected by the newly discovered H7N9 virus have no observable clinical symptoms. Public health workers in China do not know where the public health threat lies. In this study, we used a distributed focused crawler to analyze online knowledge of the live bird trade in first-wave pr...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/emi.2013.91
更新日期:2013-12-01 00:00:00
abstract::Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) with droplets and contact as the main means of transmission. Since the first case appeared in Wuhan, China, in December 2019, the outbreak has gradually spread nationwide. Up to now, acco...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2020.1746199
更新日期:2020-12-01 00:00:00
abstract::Occult hepatitis B virus infection (OBI) is a low-level asymptomatic phase of HBV infection. Evidence of OBI clinical relevance is emerging but the mechanisms of its occurrence remain unclear. In this study, the molecular characteristics of 97 confirmed OBI from Chinese blood donors were analyzed and relevant mutation...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2019.1663130
更新日期:2019-01-01 00:00:00
abstract::In March 2013, a patient infected with a novel avian influenza A H7N9 virus was reported in China. Since then, there have been 458 confirmed infection cases and 177 deaths. The virus contains several human-adapted markers, indicating that H7N9 has pandemic potential. The outbreak of this new influenza virus highlighte...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/emi.2015.22
更新日期:2015-04-01 00:00:00
abstract::Human enteroviruses frequently cause severe diseases in children. Human enteroviruses are transmitted via the fecal-oral route and respiratory droplets, and primary replication occurs in the gastro-intestinal and respiratory tracts; however, how enteroviruses infect these sites is largely unknown. Human intestinal org...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/s41426-018-0077-2
更新日期:2018-05-09 00:00:00
abstract::Acinetobacter baumannii is a notorious pathogen that has emerged as a healthcare nightmare in recent years because it causes serious infections that are associated with high morbidity and mortality rates. Due to its exceptional ability to acquire resistance to almost all available antibiotics, A. baumannii is currentl...
journal_title:Emerging microbes & infections
pub_type: 杂志文章,评审
doi:10.1038/s41426-018-0030-4
更新日期:2018-03-21 00:00:00
abstract::MERS-CoV infection emerged in the Kingdom of Saudi Arabia (KSA) in 2012 and has spread to 26 countries. However, 80% of all cases have occurred in KSA. The largest outbreak outside KSA occurred in South Korea (SK) in 2015. In this report, we describe an epidemiological comparison of the two outbreaks. Data from 1299 c...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/emi.2017.40
更新日期:2017-06-07 00:00:00
abstract::Zika virus (ZIKV) infection during pregnancy is associated with congenital brain abnormalities, a finding that highlights the urgent need to understand mother-to-fetus transmission mechanisms. Human umbilical cord mesenchymal stem cells (hUCMSCs) are susceptible to ZIKV infection but the underlying mechanisms of viral...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2020.1821581
更新日期:2020-12-01 00:00:00
abstract::Accumulating evidence indicates that bacterial metabolism plays an important role in virulence. Acetyl phosphate (AcP), the high-energy intermediate of the phosphotransacetylase-acetate kinase pathway, is the major acetyl donor in E. coli. PhoP is an essential transcription factor for bacterial virulence. Here, we sho...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2018.1558963
更新日期:2019-01-01 00:00:00
abstract::Toxoplasmosis is one of the most common zoonotic diseases in the world. Felines excrete environmentally resistant Toxoplasma gondii oocysts. However, there is no direct evidence to prove tigers are the intermediate host of T. gondii. Here, we show that, IgG antibodies to T. gondii in 80% (8/10) of captive tigers. Two ...
journal_title:Emerging microbes & infections
pub_type: 信件
doi:10.1080/22221751.2019.1682471
更新日期:2019-01-01 00:00:00
abstract::The highly pathogenic avian influenza A (H5N6) virus has caused sporadic human infections with a high case fatality rate. Due to the continuous evolution of this virus subtype and its ability to transmit to humans, there is an urgent need to develop effective antiviral therapeutics. In this study, a murine monoclonal ...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2019.1708215
更新日期:2020-01-06 00:00:00
abstract::Since the outbreak of coronavirus disease 2019 (COVID-19) in Wuhan, China, it has rapidly spread across many other countries. While the majority of patients were considered mild, critically ill patients involving respiratory failure and multiple organ dysfunction syndrome are not uncommon, which could result death. We...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2020.1770129
更新日期:2020-12-01 00:00:00
abstract::Human coronavirus OC43 (HCoV-OC43) is commonly associated with respiratory tract infections in humans, with five genetically distinct genotypes (A to E) described so far. In this study, we obtained the full-length genomes of HCoV-OC43 strains from two previously unrecognized lineages identified among patients presenti...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/emi.2016.132
更新日期:2017-01-04 00:00:00
abstract::Previous studies have shown that livestock (LA)-MRSA ST398 evolved from a human-adapted methicillin-susceptible S. aureus (MSSA) clone. However, detailed information regarding ST9 is still unclear. Here, we characterized a community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) ST9-SCCmec XII isolat...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2020.1848354
更新日期:2020-12-01 00:00:00
abstract::Influenza A(H1N1)pdm09 virus has remained in a seasonal circulation since being recognized in 2009. Although it followed a mild course in most patients, in others it caused a series of severe clinical illnesses. Epidemiologic studies have implicated that host factors have a major influence on the disease severity of i...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2020.1870412
更新日期:2021-12-01 00:00:00
abstract::Human papillomaviruses (HPV) contribute to most cervical cancers and are considered to be sexually transmitted. However, papillomaviruses are often found in cancers of internal organs, including the stomach, raising the question as to how the viruses gain access to these sites. A possible connection between blood tran...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2019.1637072
更新日期:2019-01-01 00:00:00
abstract::The continuing pandemic threat posed by avian influenza A/H5N1 viruses calls for improved insights into their evolution during human infection. We performed whole genome deep sequencing of respiratory specimens from 44 H5N1-infected individuals from Indonesia and found substantial within-host viral diversity. At nearl...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1080/22221751.2019.1575700
更新日期:2019-01-01 00:00:00
abstract::Human enterovirus 68 (EV-D68) is a rarely reported virus that has been linked to respiratory disease. In recent years, reports about EV-D68 infection have markedly increased worldwide. However, the epidemiological features of this emerging infection are not well understood. To evaluate the emerging EV-D68 epidemic, we...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/emi.2017.14
更新日期:2017-05-10 00:00:00
abstract::Whooping cough, caused by Bordetella pertussis, has resurged and presents a global health burden worldwide. B. pertussis strains unable to produce the acellular pertussis vaccine component pertactin (Prn), have been emerging and in some countries represent up to 95% of recent clinical isolates. Knowledge on the effect...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
doi:10.1038/s41426-018-0039-8
更新日期:2018-03-21 00:00:00