Summary of Study ST001474

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench,, where it has been assigned Project ID PR000993. The data can be accessed directly via it's Project DOI: 10.21228/M8BH7T This work is supported by NIH grant, U2C- DK119886.


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 IDST001474
Study TitleMetabolomics of lung injury after allogeneic hematopoietic cell transplantation - Spleen ICMS
Study Typepreliminary data
Study SummaryAllogeneic hematopoietic cell transplantation (allo-HCT) is a potentially curative treatment option for a variety of hematological malignancies. Interactions between the donor immune system and the patient tissue result in a disease, called GVHD. The pathophysiology of acute GVHD can be hypothesized in three sequential phases: cytokine storm and activation of the antigen-presenting cells (APC), donor T cell activation and effector cell phase. Idiopathic pneumonia syndrome (IPS) is one of the most deleterious complications after allogeneic HCT and is considered not only to be related to conditioning regimen toxicity but also represents an end organ damage caused by allo-reactive T cells, therefore making the lung susceptible to a two-pronged attack, one of which overlaps with GVHD causing other target organ injury. IPS results in mortality of up to 90% of patients. We will use a murine model of IPS and GVHD which is well established in our group, and in which disease evolves either across disparities in major histocompatibility complex (MCH) class I and II, minor histocompatibility antigens (miHags) or both. Metabolomics changes following syngeneic and allogeneic HCT at post-transplantation Days +7 (cytokine storm phase) and Days +42 (cellular effector phase) are compared to baseline wild-type (naive) controls. Prior to analysis, naïve - and experimental mice (N=3 from each group) were fed with semi-liquid diet supplemented with tracers (13C6-glucose ) over 24 hours. At the end of 7 days or 42 days, respectively, feces and aGVHD target organs (colon, liver and lung) were collected from all groups and further processed and / or analyzed. We expect to reveal metabolic pathways affected after allo-HCT which contribute to immune cell mediated lung injury (IPS) and will potentially identify different metabolic pathways in other GVHD target organs.
University of Kentucky
Last NameHildebrandt
First NameGerhard
AddressCTW-453, 900 South Limestone street. UKY. Lexington, Kentucky-40536
Submit Date2020-08-22
Raw Data AvailableYes
Raw Data File Type(s)raw(Thermo)
Analysis Type DetailLC-MS
Release Date2020-09-10
Release Version1
Gerhard Hildebrandt Gerhard Hildebrandt application/zip

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Combined analysis:

Analysis ID AN002450
Analysis type MS
Chromatography type Ion exchange
Chromatography system Thermo Dionex ICS-5000+
Column Dionex IonPac AS11-HC-4um 2 mm i.d. x 250 mm
MS instrument type IC-FTMS
MS instrument name Orbitrap Fusion
Units abundance & normalized peak area


MS ID:MS002273
Analysis ID:AN002450
Instrument Name:Orbitrap Fusion
Instrument Type:IC-FTMS
MS Comments:ICMS Analytical Experiment with detection of compounds by comparison to standards. Thermo RAW files are loaded into TraceFinder and peaks are manually curated. The area under the chromatograms is then exported to an Excel file. The area is then corrected for natural abundance. The natural abundance corrected area is then used to calculate the concentration of each compound for each sample. This calculation is done using standards. The first sample ran on the ICMS is a standard that has known concentrations of certain compounds. Then a number of samples are ran (typically 3-4) followed by another standard. The equation to calculate the concentration is "intensity in sample"/("intensity in first standard" + (("intensity in second standard" - "intensity in first standard")/# of samples) * "known concentration in standard", where the "intensity" is the aforementioned natural abundance corrected area, and the unlabeled intensity from the standard is used for all isotopologues of the compound. The reconstitution volume is simply the volume that the polar part of the sample was reconstituted to before going into the ICMS. The injection volume is how much of the reconstitution volume was injected into the ICMS. The protein is how much protein was in the entire sample (not only the small portion that was aliquoted for the ICMS). The polar split ratio is the fraction of the polar part of the sample that was aliquoted for the ICMS. This is calculated by dividing the weight of the polar aliquot for ICMS by the total weight of the polar portion of the sample. The protein normalized concentration is calculated using the equation, concentration * (reconstitution volume / 1000 / polar split ratio / protein).