Summary of Study ST001408

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 PR000964. The data can be accessed directly via it's Project DOI: 10.21228/M83406 This work is supported by NIH grant, U2C- DK119886.

See: https://www.metabolomicsworkbench.org/about/howtocite.php

This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.

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Study ID	ST001408
Study Title	Metabolomic profiling of baseline plasmas from a longitudinal prospective cohort of 491 active surveillance (AS) participants
Study Type	Biomarker study
Study Summary	Untargeted metabolomics analyses were performed on clinically matched baseline plasma samples (n = 16 per group) prospectively collected from patients with clinically low-risk early stage prostate cancer undergoing AS who exhibited early disease progression (DP) (defined as upgrading of Gleason score (GS) and/or increased tumor volume on surveillance biopsy within 18 months after start of AS) or indolent disease (no progression for five or more years after start of AS) as well as 459 baseline plasma samples prospectively collected from patients with early-stage prostate cancer undergoing AS.
Institute	University of Texas MD Anderson Cancer Center
Department	Department of Clinical Cancer Prevention
Last Name	Vykoukal
First Name	Jody
Address	6767 Bertner Ave, Houston, TX 77030
Email	jvykouka@mdanderson.org
Phone	713-834-6095
Submit Date	2020-05-19
Raw Data Available	Yes
Analysis Type Detail	LC-MS
Release Date	2020-07-02
Release Version	1

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Sample Preparation:

Sampleprep ID:	SP001490
Sampleprep Summary:	Plasma metabolites were extracted from pre-aliquoted EDTA plasma (10 µL) with 30µL of LCMS grade methanol (ThermoFisher) in a 96-well microplate (Eppendorf). Plates were heat sealed, vortexed for 5 min at 750 rpm, and centrifuged at 2000 × g for 10 minutes at room temperature. The supernatant (10 µL) was carefully transferred to a 96-well plate, leaving behind the precipitated protein. The supernatant was further diluted with 10 µL of 100 mM ammonium formate, pH3. For Hydrophilic Interaction Liquid Chromatography (HILIC) analysis, the samples were diluted with 60 µL LCMS grade acetonitrile (ThermoFisher), whereas samples for C18 analysis were diluted with 60 µL water (GenPure ultrapure water system, Thermofisher). Each sample solution was transferred to 384-well microplate (Eppendorf) for LCMS analysis. For lipidomics, Pre-aliquoted EDTA plasma samples (10 µL) were extracted with 30µL of LCMS grade 2-propanol (ThermoFisher) in a 96-well microplate (Eppendorf). Plates were heat sealed, vortexed for 5min at 750 rpm, and centrifuged at 2000 x g for 10 minutes at room temperature. The supernatant (10µL) was carefully transferred to a 96-well plate, leaving behind the precipitated protein. The supernatant was further diluted with 90µL of 1:3:2 100mM ammonium formate, pH3 (Fischer Scientific): acetonitrile: 2-propanol and transferred to a 384-well microplate (Eppendorf) for lipids analysis using LCMS.

Sampleprep ID:

SP001490

Sampleprep Summary:

Plasma metabolites were extracted from pre-aliquoted EDTA plasma (10 µL) with 30µL of LCMS grade methanol (ThermoFisher) in a 96-well microplate (Eppendorf). Plates were heat sealed, vortexed for 5 min at 750 rpm, and centrifuged at 2000 × g for 10 minutes at room temperature. The supernatant (10 µL) was carefully transferred to a 96-well plate, leaving behind the precipitated protein. The supernatant was further diluted with 10 µL of 100 mM ammonium formate, pH3. For Hydrophilic Interaction Liquid Chromatography (HILIC) analysis, the samples were diluted with 60 µL LCMS grade acetonitrile (ThermoFisher), whereas samples for C18 analysis were diluted with 60 µL water (GenPure ultrapure water system, Thermofisher). Each sample solution was transferred to 384-well microplate (Eppendorf) for LCMS analysis. For lipidomics, Pre-aliquoted EDTA plasma samples (10 µL) were extracted with 30µL of LCMS grade 2-propanol (ThermoFisher) in a 96-well microplate (Eppendorf). Plates were heat sealed, vortexed for 5min at 750 rpm, and centrifuged at 2000 x g for 10 minutes at room temperature. The supernatant (10µL) was carefully transferred to a 96-well plate, leaving behind the precipitated protein. The supernatant was further diluted with 90µL of 1:3:2 100mM ammonium formate, pH3 (Fischer Scientific): acetonitrile: 2-propanol and transferred to a 384-well microplate (Eppendorf) for lipids analysis using LCMS.