Summary of Study ST003051
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 PR001900. The data can be accessed directly via it's Project DOI: 10.21228/M84729 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 | ST003051 |
| Study Title | Shotgun lipidomics of breast cancer endocrine therapy persisters |
| Study Type | Lipidomics |
| Study Summary | Despite adjuvant endocrine therapy, the rate of ER+ breast cancer recurrence remains high. The metabolic state of cells that remain after endocrine therapy, specifically oxidative stress, is poorly understood. We demonstrate that endocrine-tolerant persister cells are oxidatively stressed after initiation of endocrine therapy. Furthermore, modulation of redox levels similarly modifies persister cell fitness. We find ferroptosis sensitivity and lipid peroxidation to be a dominant factor in the oxidative state, and persister cells are found to be sensitive to ferroptosis induction compared to parental cells. Persister cells exhibited an altered lipidome, with an increase in phospholipids having a predilection for peroxidation. We hypothesized that ferroptosis induction would be well-coordinated with endocrine therapy. Xenografts treated with a combination of fulvestrant and ferroptosis induction exhibited the greatest treatment effect, supporting the role of ferroptosis as a therapeutic strategy in ER+ breast cancer. |
| Institute | Dartmouth College |
| Department | Molecular and Systems Biology |
| Laboratory | Todd Miller Lab |
| Last Name | Miller |
| First Name | Todd |
| Address | Hanover, NH |
| Todd.W.Miller@Dartmouth.edu | |
| Phone | 603-646-5507 |
| Submit Date | 2024-01-17 |
| Raw Data Available | Yes |
| Raw Data File Type(s) | wiff |
| Analysis Type Detail | LC-MS |
| Release Date | 2024-02-13 |
| Release Version | 1 |
Select appropriate tab below to view additional metadata details:
Combined analysis:
| Analysis ID | AN005002 | AN005003 |
|---|---|---|
| Analysis type | MS | MS |
| Chromatography type | Reversed phase | Reversed phase |
| Chromatography system | Shimadzu LC-30 | Shimadzu LC-30 |
| Column | Waters ACQUITY UPLC HSS T3 (50 x 2.1mm,1.8um) | Waters ACQUITY UPLC HSS T3 (50 x 2.1mm,1.8um) |
| MS Type | ESI | ESI |
| MS instrument type | Triple TOF | Triple TOF |
| MS instrument name | ABI Sciex 5600+ TripleTOF | ABI Sciex 5600+ TripleTOF |
| Ion Mode | POSITIVE | NEGATIVE |
| Units | counts | counts |
MS:
| MS ID: | MS004742 |
| Analysis ID: | AN005002 |
| Instrument Name: | ABI Sciex 5600+ TripleTOF |
| Instrument Type: | Triple TOF |
| MS Type: | ESI |
| MS Comments: | Acquisition of MS/MS spectra was controlled by data dependent acquisition (DDA) function of the Analyst TF software. Lipids are identified using LIPIDBLAST package. Quantification of lipids is done by Multiquant software (AB-SCIEX). Normalization of the data for different lipid classes is performed based on a set of internal standards. |
| Ion Mode: | POSITIVE |
| Acquisition Parameters File: | LIP_15min_MSMS_Jenny_new_20min_mass100-1200_Valve_Positive.txt |
| MS ID: | MS004743 |
| Analysis ID: | AN005003 |
| Instrument Name: | ABI Sciex 5600+ TripleTOF |
| Instrument Type: | Triple TOF |
| MS Type: | ESI |
| MS Comments: | Acquisition of MS/MS spectra was controlled by data dependent acquisition (DDA) function of the Analyst TF software. Lipids are identified using LIPIDBLAST package. Quantification of lipids is done by Multiquant software (AB-SCIEX). Normalization of the data for different lipid classes is performed based on a set of internal standards. |
| Ion Mode: | NEGATIVE |
| Acquisition Parameters File: | LIP_15min_MSMS_Jenny_New_20min_valve_Negative.txt |
