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Bioplatforms Australia: Antibiotic Resistant Sepsis Pathogens Framework Initiative - Staphylococcus aureus

ABSTRACT: The Antibiotic Resistant Sepsis Pathogens Framework Initiative aims to develop a framework dataset of 5 sepsis pathogens (5 strains each) using an integrated application of genomic, transcriptomic, metabolomic and proteomic technologies. The pathogens included in this initiative are: Escherichia coli, Klebsiella pneumoniae complex, Staphylococcus aureus, Streptococcus pyogenes, and Streptococcus pneumoniae. This submission pertains to Staphylococcus aureus strains BPH2760, BPH2819, BPH2900, BPH2947 and BPH2986.

INSTRUMENT(S): TripleTOF 6600

ORGANISM(S): Staphylococcus Aureus

TISSUE(S): Cell Culture

SUBMITTER: Dana Pascovici

LAB HEAD: Mabel Lum

PROVIDER: PXD016504 | Pride | 2021-07-05

REPOSITORIES: Pride

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Bioplatforms Australia: Antibiotic Resistant Sepsis Pathogens Framework Initiative - Streptococcus pyogenes

Project description:The Antibiotic Resistant Sepsis Pathogens Framework Initiative aims to develop a framework dataset of 5 sepsis pathogens (5 strains each) using an integrated application of genomic, transcriptomic, metabolomic and proteomic technologies. The pathogens included in this initiative are: Escherichia coli, Klebsiella pneumoniae complex, Staphylococcus aureus, Streptococcus pyogenes, and Streptococcus pneumoniae. This submission pertains to Streptococcus pyogenes strains 5448, SP444, HKU419, PS003 and PS006.

2021-07-05 | PXD016913 | Pride

Bioplatforms Australia: Antibiotic Resistant Sepsis Pathogens Framework Initiative - Klebsiella pneumoniae complex

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Bioplatforms Australia: Antibiotic Resistant Sepsis Pathogens Framework Initiative - Streptococcus pneumoniae

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2021-07-05 | PXD017606 | Pride

Gefitinib results in robust host-directed immunity against Salmonella infection through proteo-metabolomic reprogramming.

Project description:The rise of antibiotic-resistant strains of Salmonella has demand the development of alternative therapeutic strategies. Recent studies have shown that targeting host factors may provide an alternative approach for the treatment of intracellular pathogens. Host-directed therapy (HDT) modulates host cellular factors that are essential to support the replication of the intracellular pathogens. In the current study, we identified Gefitinib as a potential host directed therapeutic drug against Salmonella. Further, using the proteome analysis of Salmonella-infected macrophages, we identified EGFR, a host factor, promoting intracellular survival of Salmonella via mTOR-HIF-1α axis. Blocking of EGFR, mTOR or HIF-1α inhibits the intracellular survival of Salmonella within the macrophages and in mice. Global proteo-metabolomics profiling indicated the upregulation of host factors predominantly associated with ATP turn over, glycolysis, urea cycle, which ultimately promote the activation of EGFR-HIF1α signalling upon infection. Importantly, inhibition of EGFR and HIF1α restored both proteomics and metabolomics changes caused by Salmonella infection. Taken together, this study identifies Gefitinib as a host directed drug that holds potential translational values against Salmonella infection and might be useful for the treatment of other intracellular infections.

2021-03-26 | PXD024771 | Pride

RNA-protein interactome reveals essential roles of RPL5 and RNA helicase A in mediating translation from the Hepatitis E virus internal ribosome entry site-like element

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2023-06-15 | PXD042352 | Pride

SWATH-based quantitative proteomics data derived from whole grain of Malaysian local pigmented and non-pigmented rice varieties

Project description:Information about protein expression in rice grain across both pigmented and non-pigmented rice varieties is still relatively scarce. The data provided here represent proteomic data obtained from selected 6 Malaysian local rice varieties with varying pigmentations (black, red and white). The selected pigmented rice varieties such as black (BALI and Pulut hitam 9) and red rice (MRQ100 and MRM16) have shown high antioxidant activities and non-pigmented rice (MRQ76 and MR297) contain amino acid and micronutrient contents. This project aimed to obtain global protein expression profile as well as differential protein expression between the selected pigmented and non-pigmented rice varieties particularly proteins with their functions responsible for nutritional (i.e. antioxidant, folate and low glycaemic index) and quality (i.e. aromatic) traits. Integration of this proteomics dataset with other available in-house omics data could facilitate the identification of significant functional markers related to nutritional and quality traits. Total proteins were prepared from dehusked matured seeds harvested from three different rice plants of each variety (3 protein samples per variety). The proteins were trypsin digested before subjected to SWATH-MS proteomics analysis. Proteins were identified by matching tandem mass (MS/MS) spectra from both 1D and 2D IDA to Oryza sativa japonica and indica rice databases available at UniProt by using ProteinPilot software (v4.2) (AB Sciex). Quantification of proteins was carried out by determining protein peak areas extracted from SWATH analysis data sets using PeakView (v2.1) (AB Sciex) software. Differentially expressed protein between varieties were identified using T-test analysis with a set threshold for fold change ± 1.5 and p‐value < 0.05.

2020-04-27 | PXD018338 | Pride

Integrated transcriptomic and proteomic analyses revealed the participation of endogenous protease inhibitors in the regulation of protease gene expression in Helicoverpa armigera

Project description:Insects adapt to plant protease inhibitors (PIs) present in their diet by differentially regulating multiple digestive proteases. However, mechanisms regulating protease gene expression in insects are largely enigmatic. Ingestion of Capsicum annuum protease inhibitor-7 (CanPI-7) arrests growth and development of Helicoverpa armigera (Lepidoptera: noctuidae). Using de novo RNA sequencing and proteomic analysis, we examined the response of H. armigera larvae fed on recombinant C. annuum PI (CanPI) at different time intervals. Here, we present evidence supporting a dynamic transition in H. armigera protease expression upon CanPI feeding with general down-regulation of protease genes at early time points (0.5 to 6 h) and significant up-regulation of specific trypsin, chymotrypsin and aminopeptidase genes at later time points (12 to 48 h).

2018-04-25 | PXD008376 | Pride

Proteome Dynamics Reveals Pro-inflammatory Remodeling of Plasma Proteome in a Mouse Model of NAFLD

Project description:Nonalcoholic fatty liver disease (NAFLD) is associated with an increased risk of cardiovascular disease (CVD). Liver is the major source of the circulatory proteins and alterations in plasma proteome have been implicated in atherosclerosis. We used a recently developed 2H2O-metabolic labeling method in combination with the label-free quantification to evaluate the effect of a Western diet (WD) on the dynamics of plasma proteins in LDL receptor-deficient (LDLR-/-) mice, a model of NAFLD and atherosclerosis. There were no significant changes in the expression level of total proteins due to the WD with a bulk protein mean half-life of 18.0±15.1 hours in control and 16.7±11.1 hours in WD groups. WD led to pro-inflammatory distribution of circulatory proteins analyzed in apoB-depleted plasma attributed to their increased production. The fractional catabolic rates of fast-turnover proteins with stress-response, lipid metabolism and transport functions were significantly increased with WD (P<0.05). The pathway analyses revealed that alterations in plasma proteome dynamics were related to the suppression of hepatic PPARα, which was confirmed based on reduced gene and protein expression of PPARα on WD. These changes were associated with ~4 fold increase (P<0.0001) in pro-inflammatory property of apoB-depleted plasma. In conclusion, the proteome dynamics method reveals pro-inflammatory remodeling of plasma proteome relevant to liver disease. As in vivo metrics of liver function, this approach can be used to test therapies in NAFLD and other diseases

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