Barcoded plasmids or Sindbis virus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA360319 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR5149588_1.fastq.gz | Fastqsanger.gz | |||
| SRR5149588_2.fastq.gz | Fastqsanger.gz | |||
| SRR5149589_1.fastq.gz | Fastqsanger.gz | |||
| SRR5149589_2.fastq.gz | Fastqsanger.gz | |||
| SRR5152321_1.fastq.gz | Fastqsanger.gz |
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Project description:Sindbis virus structural polyprotein -1 PRF deep mutational scan
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Project description:Sindbis virus strain:MRE16 Raw sequence reads
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Project description:Small RNAs play a critical role in host-pathogen interaction. In insects, for instance, small RNA-mediated silencing or RNA interference (RNAi) represents the main antiviral defense system. However, the antiviral role of RNAi has not been clearly proven in higher vertebrates. On the contrary, it is well established that the cell response relies on the recognition of viral RNAs by host pattern recognition receptors (PRR) to trigger the activation of the interferon pathway. Based on this evidence, we wished to contribute to this research field by identifying and characterizing small non-coding RNAs produced in mammalian cells upon RNA virus infection. We focused on Sindbis virus (SINV), the prototypical arbovirus, which by definition, is able to infect both vertebrate hosts and invertebrate vectors and triggers the interferon pathway or RNAi, respectively.
2013-11-19 | GSE48831 | GEO
Project description:An unexpected human outbreak of the mosquitoborne Sindbis virus occurred in a previously nonendemic area of Sweden. At follow-up, 6-8 months after infection, 39% of patients had chronic arthralgia that affected their daily activities. Vectorborne infections may disseminate rapidly into new areas and cause acute and chronic disease.
| S-EPMC6004841 | biostudies-literature
Project description:The structure of the lipid-enveloped Sindbis virus has been determined by fitting atomic resolution crystallographic structures of component proteins into an 11-A resolution cryoelectron microscopy map. The virus has T=4 quasisymmetry elements that are accurately maintained between the external glycoproteins, the transmembrane helical region, and the internal nucleocapsid core. The crystal structure of the E1 glycoprotein was fitted into the cryoelectron microscopy density, in part by using the known carbohydrate positions as restraints. A difference map showed that the E2 glycoprotein was shaped similarly to E1, suggesting a possible common evolutionary origin for these two glycoproteins. The structure shows that the E2 glycoprotein would have to move away from the center of the trimeric spike in order to expose enough viral membrane surface to permit fusion with the cellular membrane during the initial stages of host infection. The well-resolved E1-E2 transmembrane regions form alpha-helical coiled coils that were consistent with T=4 symmetry. The known structure of the capsid protein was fitted into the density corresponding to the nucleocapsid, revising the structure published earlier.
| S-EPMC136788 | biostudies-literature
Project description:BackgroundThe characteristics of glioblastoma, such as drug resistance during treatment, short patient survival, and high recurrence rates, have made patients with glioblastoma more likely to benefit from oncolytic therapy.MethodsIn this study, we investigated the safety of the sindbis virus by injecting virus intravenously and intracranially in mice and evaluated the therapeutic effect of the virus carrying different combinations of IL-12, IL-7, and GM-CSF on glioma in a glioma-bearing mouse model.ResultsSINV was autologously eliminated from the serum and organs as well as from neural networks after entering mice. Furthermore, SINV was restricted to the injection site in the tree shrew brain and did not spread throughout the whole brain. In addition, we found that SINV-induced apoptosis in conjunction with the stimulation of the immune system by tumor-killing cytokines substantially suppressed tumor development. It is worth mentioning that SINV carrying IL-7 and IL-12 had the most notable glioma-killing effect. Furthermore, in an intracranial glioma model, SINV containing IL-7 and IL-12 effectively prolonged the survival time of mice and inhibited glioma progression.ConclusionsThese results suggest that SINV has a significant safety profile as an oncolytic virus and that combining SINV with cytokines is an efficient treatment option for malignant gliomas.
| S-EPMC10571546 | biostudies-literature
Project description:Transmission of arthropod-borne viruses (arboviruses) are an emerging global health threat in the last few decades. One important arbovirus family is the Togaviridae, including the species Sindbis virus within the genus Alphavirus. Sindbis virus (SINV) is transmitted by mosquitoes, but available data about the role of different mosquito species as potent vectors for SINV are scarce. Therefore, we investigated seven mosquito species, collected from the field in Germany (Ae. koreicus, Ae. geniculatus, Ae. sticticus, Cx. torrentium, Cx. pipiens biotype pipiens) as well as lab strains (Ae. albopictus, Cx. pipiens biotype molestus, Cx. quinquefasciatus), for their vector competence for SINV. Analysis was performed via salivation assay and saliva was titrated to calculate the amount of infectious virus particles per saliva sample. All Culex and Aedes species were able to transmit SINV. Transmission could be detected at all four investigated temperature profiles (of 18 ± 5 °C, 21 ± 5 °C, 24 ± 5 °C or 27 ± 5 °C), and no temperature dependency could be observed. The concentration of infectious virus particles per saliva sample was in the same range for all species, which may suggest that all investigated mosquito species are able to transmit SINV in Germany.
| S-EPMC9785343 | biostudies-literature