Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Henry PGYP1

ABSTRACT: Wolbachia pipientis is an obligate intracellular bacterium capable of spreading itself through populations by manipulating the reproduction of its hosts. The Wolbachia strain wMelPop, which reduces longevity in Drosophila melanogaster, has been introduced into the Dengue virus mosquito vector, Aedes aegypti, as a strategy to reduce disease transmission. The infecting Wolbachia halve the lifespan of the mosquito and induce numerous behavioral and physiological abnormalities that reduce the ability of the mosquito to successfully obtain a blood meal. We aim to understand the mechanism underpinning these changes and hence have chosen to explore how Wolbachia may be interacting with the insects nervous and muscle tissue. We carried out a series whole genome profiling experiments based on head and muscle tissues to identify mosquito pathways affected by the microbe.

ORGANISM(S): Aedes aegypti

DISEASE(S): Wolbachia infected

SUBMITTER: Henry Ye

PROVIDER: E-MEXP-2907 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Transcription profiling by array of Aedes aegypti infected with Wolbachia strains wMelPop and wMel

Project description:Wolbachia is a vertically transmitted intracellular bacteria that infect most than 60% of insect species. The strains wMelPop and wMel were introduced in the dengue virus vector Aedes aegypti, naturally not infected by Wolbachia. Recently, it was shown that those two strains inhibit dengue virus replication into their new host, A. aegypti (Moreira et al. 2009 and Walker et al. in preparation). The aim of this project is to look at the transcriptional response of Aedes aegypti to infection with wMel and wMelPop and try to find some genes or pathway potentially involved in the viral interference.Four laboratory lines of A. aegypti were used throughout this study. The PGYP1 and Mel2 lines were generated by transinfection with wMelPop and wMel strains respectively. PGYP1.tet and Mel2tet lines were treated with the antibiotic tetracycline and cured from Wolbachia infection (McMeniman et al., 2009 and Walker et al in preparation). The Mosquitoes were reared under standard laboratory conditions (26 ± 2 °C, 12:12 light/dark cycle, 75% relative humidity). Mosquito larvae were fed 0.1mg/larvae of TetraMin Tropical Tablets once a day. Adults were transferred to cages (measuring 30 x 30 x 30 cm) at emergence at 400 individuals per cage. Adults were supplied with a basic diet of 10% sucrose solution (Turley et al., 2009).

2012-01-01 | E-MEXP-2931 | biostudies-arrayexpress

Comprehensive quantitative proteome analysis of Aedes aegypti to interrogate Wolbachia pipientis and Zika virus interference phenomenon

Project description:Zika virus is a global public health emergency due to its association with microcephaly, Guillain-Barré syndrome, neuropathy, and myelitis in children and adults. A total of 87 countries have had evidence of autochthonous mosquito-borne transmission of Zika virus, distributed across four continents, and no antivirus therapy or vaccines are available. Therefore, several strategies have been developed to target the main mosquito vector, Aedes aegypti, to reduce the burden of different arboviruses. Among such strategies, the use of the maternally-inherited endosymbiont Wolbachia pipientis has been applied successfully to reduce virus susceptibility and decrease transmission. However, the mechanisms by which Wolbachia orchestrate resistance to ZIKV infection remains to be elucidated. In this study, we apply quantitative isobaric mass spectrometry-based proteomics to quantify proteins and identify pathways altered during ZIKV infection; Wolbachia infection; co-infection with Wolbachia/ZIKV in the Ae. aegypti. We show that Wolbachia regulates proteins involved in ROS production, regulates humoral immune response, and antioxidant production. The reduction of ZIKV polyprotein in the presence of Wolbachia in the mosquitoes was determined by mass spectrometry and corroborates the idea that Wolbachia helps to block ZIKV infections in Ae. aegypti. The present study offers a rich resource of data to help elucidate mechanisms by which Wolbachia orchestrate resistance to ZIKV infection in Ae. aegypti.

2021-02-26 | PXD022665 | Pride

Wolbachia infection modifies the profile, shuttling and structure of microRNAs in a mosquito cell line

Project description:We characterized the miRNA composition of the nucleus and the cytoplasm of uninfected cells and compared it with the one of cells infected with the endosymbiotic bacterium Wolbachia strain wMelPop-CLA. We found an overall increase of small RNAs between 18 and 28 nucleotides in both cellular compartments in Wolbachia-infected cells and identified specific miRNAs induced and/or suppressed by the Wolbachia infection. We discuss the mechanisms that the cell may use to shuttle miRNAs between the cytoplasm and the nucleus. In addition, we identified piRNAs that changed their abundance in response to Wolbachia infection. The miRNAs and piRNAs identified in this study provide promising leads for investigations into the host-endosymbiont interactions and for better understanding of how Wolbachia manipulates the host miRNA machinery in order to facilitate its persistent replication in infected cells. Examination of small RNA profile in cytoplasmic and nuclear fractions of Aag 2 and Pop cells (Aedes aegypti)

2014-02-22 | E-GEOD-55210 | biostudies-arrayexpress

Transcription profiling of Drosophila allowed to evolve a defense response to infection to Pseudomonas aeruginosa over 10 generations

Project description:Drosophila harbor substantial genetic variation for antibacterial defense. We allowed wild-caught Drosophila melanogaster to evolve a defense response to systemic infection with the human opportunistic pathogen, Pseudomonas aeruginosa over 10 generations. We performed genome wide transcriptional profiling in selected lines relative to control lines (not infected, but were exposed to the same bottleneck in population size as their paired selected lines by randomly selecting a set of individuals to found the next generation, and then infected at the end of the 10 generations), to identify specifically the genetic basis of the evolved immune response.

2009-02-20 | E-MEXP-2054 | biostudies-arrayexpress

Interspecies isobaric labeling-based proteomics reveals protein changes in the ovary of Aedes aegypti co-infected with ZIKV and Wolbachia

Project description:Zika is a vector-borne disease caused by an arbovirus (ZIKV) and overwhelmingly transmitted by Ae. aegypti. This disease is linked to adverse fetal outcomes, mostly microcephaly in newborns, and other clinical aspects such as acute febrile illness and neurologic complications, for example Guillain-Barré syndrome. One of the actual most promising strategies to mitigate arbovirus transmission involves releasing Ae. aegypti mosquitoes carrying the maternally inherited endosymbiont bacteria Wolbachia pipientis. The presence of Wolbachia is associated with a reduced susceptibility to arboviruses and a fitness cost in mosquito life-history traits as fecundity and fertility. However, the mechanisms by which Wolbachia influences metabolic pathways leading to differences in egg production remains poorly known. In order to investigate the impact of co-infections on the reproductive tract of the mosquito, we applied a quantitative proteomic strategy based on an isobaric labeling to investigate the influence of Wolbachia wMel and ZIKV infection in Ae. aegypti ovaries. For what we know, this is the most complete proteome of Ae. aegypti ovaries reported so far, with a total of 3913 proteins identified. We were able to quantify a total of 1044 Wolbachia proteins in complex sample tissue of Ae. aegypti ovary employing mass spectrometry-based quantitative methods. Furthermore, we describe and discuss proteins and pathways altered in Ae. aegypti during ZIKV infections, Wolbachia infections, co-infection Wolbachia/ZIKV, and compared with no infection, focusing on immune and reproductive aspects of Ae. aegypti.

2022-08-12 | PXD031728 | Pride

Serratia_infections

Project description:Transcriptional responses in the gut of the main malaria vector Anopheles gambiae following oral bacterial infection with the entomopathogen Serratia marcescens were identified using DNA microarrays. S. marcescens is a common member of the mosquito gut microbiota, found in both laboratory reared and field collected mosquitoes, that can be potentially pathogenic as in Drosophila (Nehme et al., 2007), while it has been shown to influence the outcome of Plasmodium infections (Bando et al., 2013). S. marcescens belongs to the Enterobacteriaceae family, members of which have been shown to influence malaria transmission dynamics (Cirimotich et al., 2011, Boissiere et al., 2012). To further investigate the interactions between S. marcescens and the mosquito host, likely to shape, directly or indirectly, malaria transmission dynamics, An. gambiae mosquitoes, from the recently established N'gousso M form laboratory colony that retains much of the genetic variation of field mosquitoes, were antibiotic treated for 5 days and subsequently orally infected with the Db11-GFP strain of S. marcescens. Bacteria-fed mosquitoes were selected 2 days post infection, and, 3 days post infection, guts from bacteria-fed mosquitoes were dissected. Uninfected control mosquitoes were treated in the same way. Differential expression in the gut of S. marcescens infected mosquitoes, compared to uninfected controls, was identified by hybridizing labelled complementary RNA, derived from total RNA extracted from the respective gut pools, in customized Agilent 4x44k gene expression microarrays, comprising oligonucleotide probes encompassing all An. gambiae annotated genes of the AgamP3.6 release, with each probe represented in duplicate.

2013-11-30 | E-MEXP-3952 | biostudies-arrayexpress

Gene expression profiling in wMelPop-infected Aedes aegypti

Project description:Whole genome transcriptional profiling comparing Ae. aegypti infected with Wolbachia sp. wMelPop (PGYP1) to an uninfected Ae. aegypti control line (PGYP1.tet). The objective of the experiment was to identify genes that may be involved in the life shortening phenotype associated with wMelPop infection. Two-colour experiment; infected vs. uninfected Ae. aegypti; 4 biological replicates; 2 dye swaps.

2010-05-15 | E-GEOD-17469 | biostudies-arrayexpress

RNA-Seq of Wolbachia infected and uninfected spider mites

Project description:Four spider mites strains, 1-3 day old adult females with and without Wolbachia infection (Turt_FI, Turt_Fu),and 1 day old adult males with and without Wolbachia infection (Turt_MI, Turt_MU).The four samples were sequenced on the Illumina HiSeq2000 platform.

2014-12-17 | E-MTAB-2491 | biostudies-arrayexpress

Ndii2015-transmission dynamics of dengue in the presence of Wolbachia.

Project description:Use of the bacterium Wolbachia is an innovative new strategy designed to break the cycle of dengue transmission. There are two main mechanisms by which Wolbachia could achieve this: by reducing the level of dengue virus in the mosquito and/or by shortening the host mosquito's lifespan. However, although Wolbachia shortens the lifespan, it also gives a breeding advantage which results in complex population dynamics. This study focuses on the development of a mathematical model to quantify the effect on human dengue cases of introducing Wolbachia into the mosquito population. The model consists of a compartment-based system of first-order differential equations; seasonal forcing in the mosquito population is introduced through the adult mosquito death rate. The analysis focuses on a single dengue outbreak typical of a region with a strong seasonally-varying mosquito population. We found that a significant reduction in human dengue cases can be obtained provided that Wolbachia-carrying mosquitoes persist when competing with mosquitoes without Wolbachia. Furthermore, using the Wolbachia strain WMel reduces the mosquito lifespan by at most 10% and allows them to persist in competition with non-Wolbachia-carrying mosquitoes. Mosquitoes carrying the WMelPop strain, however, are not likely to persist as it reduces the mosquito lifespan by up to 50%. When all other effects of Wolbachia on the mosquito physiology are ignored, cytoplasmic incompatibility alone results in a reduction in the number of human dengue cases. A sensitivity analysis of the parameters in the model shows that the transmission probability, the biting rate and the average adult mosquito death rate are the most important parameters for the outcome of the cumulative proportion of human individuals infected with dengue.

2020-03-20 | MODEL2003160002 | BioModels

Small RNA-Seq of Wolbachia infected and uninfected spider mites

Project description:Four spider mites strains, 1-3 day old adult females with and without Wolbachia infection (FI, FU),and 1 day old adult males with and without Wolbachia infection (MI, MU).The four samples were sequenced on the Illumina HiSeq2000 platform.

2015-01-15 | E-MTAB-2606 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data