Summary of Study ST001201

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR000809. The data can be accessed directly via it's Project DOI: 10.21228/M83X38 This work is supported by NIH grant, U2C- DK119886.

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Study IDST001201
Study TitlePeroxide antimalarial treatment timecourse on trophozoite-stage P. falciparum parasites
Study SummaryRed blood cells (RBCs) infected with trophozoite stage P. falciparum parasites (3D7 strain) at 10% parasitaemia and 2% haematocrit were treated with OZ277 (300 nM), OZ439 (300 nM), DHA (100 nM) or vehicle (0.03% DMSO). This was a 4-timepoint study, with samples taken 0, 0.5, 1.5 and 3 h after drug or vehicle addition. Samples treated with vehicle acted as the untreated control. Samples from drug treated uninfected RBCs were also taken to ensure the observed drug effects were parasite specific.
Institute
Monash University
Last NameGiannangelo
First NameCarlo
Address381 Royal Parade, Parkville, Victoria, 3052, Australia
Emailcarlo.giannangelo@monash.edu
Phone99039282
Submit Date2019-06-19
Raw Data AvailableYes
Raw Data File Type(s)raw(Thermo)
Analysis Type DetailLC-MS
Release Date2019-07-17
Release Version1
Carlo Giannangelo Carlo Giannangelo
https://dx.doi.org/10.21228/M83X38
ftp://www.metabolomicsworkbench.org/Studies/ application/zip

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Sample Preparation:

Sampleprep ID:SP001276
Sampleprep Summary:Infected RBCs were adjusted to 10% parasitaemia and 2% haematocrit and the culture medium refreshed prior to drug addition. Following the drug incubation period, 1E8 cells were pelleted by centrifugation at 1,000 x g for 3 min and the culture medium was removed. Parasite metabolism was quenched by the addition of ice-cold PBS, pelleted again and the supernatant discarded prior to metabolite extraction. Metabolites were extracted from the cell pellet using 150 µL of cold chloroform/methanol/water (1:3:1). The extraction solvent containing the internal standard compounds CHAPS (3-[(3-cholamidopropyl)-dimethylammonio]-1-propanesulfonate), CAPS (3-(cyclohexylamino)-1-propanesulfonic acid), PIPES (1,4-piperazinediethanesulfonic acid) and TRIS (2-amino-2-(hydroxymethyl)-1,3-propanediol) was directly added to the cell pellet, mixed by pipetting and subjected to automatic vortex mixing for 1 h at 4°C. Following the 1 h incubation, samples were pelleted by centrifugation at 21,100 x g for 10 min, 110 µL of particle free supernatant was transferred to glass LC-MS vials and stored at -80°C until analysis. A 15 µL aliquot of each sample was combined to generate a pooled biological quality control (PBQC) sample.
Processing Storage Conditions:Described in summary
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