Summary of Study ST001492

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 PR001010. The data can be accessed directly via it's Project DOI: 10.21228/M84T3J 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.

Show all samples | Perform analysis on untargeted data
Download mwTab file (text) | Download mwTab file(JSON) | Download data files (Contains raw data)

Study ID	ST001492
Study Title	Global metabolomics of IFNy cued neurogenic NSCs seeded on hydrogel
Study Summary	Neural stem cells (NSCs) provide a strategy to replace damaged neurons following traumatic central nervous system injuries. A major hurdle to translation of this therapy is that direct application of NSCs to CNS injury does not support sufficient neurogenesis due to lack of proper cues. To provide prolonged spatial cues to NSCs IFN-γ was immobilized to biomimetic hydrogel substrate to supply physical and biochemical signals to instruct the encapsulated NSCs to be neurogenic. However, the immobilization of factors, including IFN-γ, versus soluble delivery of the same factor, has been incompletely characterized especially with respect to activation of signaling and metabolism in cells over longer time points. In this study, protein and metabolite changes in NSCs induced by immobilized versus soluble IFN-γ at 7 days were evaluated. Soluble IFN-γ, refreshed daily over 7 days, elicited stronger responses in NSCs compared to immobilized IFN-γ indicating that immobilization may not sustain signaling or has altered ligand/receptor interaction and integrity. However, both IFN-γ delivery types supported increased βIII tubulin expression in parallel with canonical and non-canonical receptor-signaling compared to no IFN-γ. Global metabolomics and pathway analysis revealed that soluble and immobilized IFN-γ altered metabolic pathway activities including energy, lipid and amino acid synthesis, with soluble IFN-γ having the greatest metabolic impact overall.
Institute	University of Akron
Department	Chemistry
Laboratory	Shriver lab
Last Name	Baumann
First Name	Hannah
Address	190 E. Buchtel Common
Email	hjb17@zips.uakron.edu
Phone	4198864033
Submit Date	2020-09-11
Num Groups	3
Publications	Metabolomic and Signaling Programs Induced by Immobilized versus Soluble IFN γ in Neural Stem Cells
Raw Data Available	Yes
Raw Data File Type(s)	wiff
Analysis Type Detail	LC-MS
Release Date	2020-10-13
Release Version	1

Select appropriate tab below to view additional metadata details:

Sample Preparation:

Sampleprep ID:	SP001574
Sampleprep Summary:	NSC seeded gels were snap frozen and stored at -80C until extraction. Two gels were combined per group and extracted using a modified Bligh and Dyer extraction technique. In brief, 100 uL of methanol was added to each sample then underwent a series of snap freezing, sonication and vortexing three times. 750 μl of 1:2 chloroform:methanol was added to each homogenized sample, vortexed, then an additional 250 μL of chloroform was added, finally 250 μL water was added, all solvents used were LC grade. Samples were stored in -20 overnight and centrifuged to separate the phase layers and solidify the protein precipitate interface. Aqueous and organic layers were separated, dried down using Centrivap (Labconco) and stored in the -80 C until use. Aqueous portions of the extract were resuspended in 200 μL of 35% acetonitrile.

Sampleprep ID:

SP001574

Sampleprep Summary:

NSC seeded gels were snap frozen and stored at -80C until extraction. Two gels were combined per group and extracted using a modified Bligh and Dyer extraction technique. In brief, 100 uL of methanol was added to each sample then underwent a series of snap freezing, sonication and vortexing three times. 750 μl of 1:2 chloroform:methanol was added to each homogenized sample, vortexed, then an additional 250 μL of chloroform was added, finally 250 μL water was added, all solvents used were LC grade. Samples were stored in -20 overnight and centrifuged to separate the phase layers and solidify the protein precipitate interface. Aqueous and organic layers were separated, dried down using Centrivap (Labconco) and stored in the -80 C until use. Aqueous portions of the extract were resuspended in 200 μL of 35% acetonitrile.