Summary of Study ST002967
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 PR001846. The data can be accessed directly via it's Project DOI: 10.21228/M83H81 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.
Study ID | ST002967 |
Study Title | Lipidomics study of FASN inhibition in HT-29 and HCT 116 spheroids |
Study Summary | Cancerous cells synthesize most of their lipids de novo to keep up with their rapid growth and proliferation. Fatty acid synthase (FAS) is a key enzyme in the lipogenesis pathway that is upregulated in many cancers and has gained popularity as a druggable target of interest for cancer treatment. The first FAS inhibitor discovered, cerulenin, initially showed promise for chemotherapeutic purposes until it was observed that it had adverse side effects in mice. TVB2640 (Denifanstat), is part of the newer generation of inhibitors. With multiple generations of FAS inhibitors being developed, it is vital to understand their distinct molecular downstream effects to elucidate potential interactions in the clinic. Here, we profile the lipidome of two different colorectal cancer (CRC) spheroids treated with a generation 1 inhibitor (cerulenin) or a generation 2 inhibitor (TVB-2640). We observe that the cerulenin causes drastic changes to the spheroid morphology as well as alterations to the lipid droplets found within CRC spheroids. TVB-2640 causes higher abundances of polyunsaturated fatty acids (PUFAs) whereas cerulenin causes decreased abundance of PUFAs. The increase in PUFAs in TVB-2640 exposed spheroids indicates it is causing cells to die via a ferroptotic mechanism rather than a conventional apoptotic or necrotic mechanism. |
Institute | The Ohio State University |
Department | Chemistry and Biochemistry |
Laboratory | Amanda Hummon Lab |
Last Name | Fries |
First Name | Brian |
Address | 460 W 12th Ave, Columbus, OH 43210 |
fries.94@osu.edu | |
Phone | 9375221195 |
Submit Date | 2023-11-08 |
Raw Data Available | Yes |
Raw Data File Type(s) | d |
Analysis Type Detail | LC-MS |
Release Date | 2024-04-02 |
Release Version | 1 |
Select appropriate tab below to view additional metadata details:
Combined analysis:
Analysis ID | AN004875 |
---|---|
Analysis type | MS |
Chromatography type | Reversed phase |
Chromatography system | 1290 Infinity II UHPLC (Agilent) |
Column | Waters ACQUITY UPLC BEH C18 (100 x 2.1mm, 1.7um) |
MS Type | ESI |
MS instrument type | QTOF |
MS instrument name | Agilent 6545 QTOF |
Ion Mode | UNSPECIFIED |
Units | pmol/ug of Protein |
MS:
MS ID: | MS004619 |
Analysis ID: | AN004875 |
Instrument Name: | Agilent 6545 QTOF |
Instrument Type: | QTOF |
MS Type: | ESI |
MS Comments: | e. "MS-Only", positive and negative ion mode acquisitions were conducted on the samples on an Agilent 6545 quadrupole time-of-flight mass spectrometer equipped with a JetStream ionization source. The source conditions were as follows: Gas Temperature, 300 °C; Drying Gas flow, 12 L/ min; Nebulizer, 30 psi; Sheath Gas Temperature, 350 °C; Sheath Gas Flow, 10 L/ min; Vcap, 3000 V; Fragmentor, 125 V; Skimmer, 45 V; and Oct 1 RF, 750 V. The acquisition rate in MS-Only mode was 4 spectra/second, utilizing m/z 121.050873 and m/z 922.009798 as reference masses in positive ion mode, and m/z 112.985587 and m/z 1033.988109 in negative ion mode. The acquisition parameters for Auto MS/MS are similar to MS-Only mode, with the addition of Collision Energy of 10, 20, and 40; isolation width, narrow (1.3 m/z); top 6 precursors per cycle; Precursor Threshold, 2000 counts and 0.01 %; active exclusion was enabled for 1 spectrum and released after 0.12 minutes. Iterative Auto MS/MS was also utilized, where 5 consecutive injections of the pooled sample were analyzed to generate a rolling exclusion list throughout the 5 injections, where a top 6 precursor per cycle and a collision energy of 20 was used. Data Analysis Lipidomics data were analyzed using MS-DIAL (version 4.9.221218) and visualized using the R Packages SCOPE and LipidR. The curated Alignment Table from MS-DIAL can be found in the Supplemental Information. Venn diagrams were generated using the Venny 2.1 website. Total triglyceride content data were analyzed using Microsoft Excel. The data analysis parameters for MS-DIAL can be found in the Supplemental Information |
Ion Mode: | UNSPECIFIED |