Summary of Study ST002748
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 PR001711. The data can be accessed directly via it's Project DOI: 10.21228/M8JD9D 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 | ST002748 |
| Study Title | HER2 overexpression initiates breast tumorigenesis non-cell autonomously by inducing oxidative stress in the tissue microenvironment |
| Study Summary | HER2 is a driver oncogene overexpressed in the majority of premalignant breast tumors known as ductal carcinoma in situ (DCIS). Due to their stemness features, breast cancer stem cells (BCSC) are considered the main drivers of breast tumor initiation and progression. Here, we used clinical samples and mouse models of HER2+ breast tumorigenesis to demonstrate that neither BCSCs nor their cell-of-origin express HER2/Neu in early-stage breast tumors. Instead, our results demonstrate that Neu overexpression results in the transformation of BCSCs in a non-cell autonomous manner via triggering DNA damage and somatic mutagenesis in their Neu-negative cell-of-origin. This is caused by the increased oxidative stress in the tissue microenvironment generated by altered energy metabolism and increased reactive oxygen species level in Neu-overexpressing mammary ducts. Therefore, our findings illustrate a previously unrecognized mechanism of HER2-induced breast tumor initiation, which may have an impact on future preventive treatments for patients with HER2+ DCIS. |
| Institute | The University of Manchester |
| Department | Manchester Breast Centre |
| Laboratory | Ahmet Ucar Lab |
| Last Name | Ucar |
| First Name | Ahmet |
| Address | Oxford Road, Manchester, M13 9PL, UK. |
| ahmet.ucar@manchester.ac.uk | |
| Phone | +44 (0)161 3067116 |
| Submit Date | 2023-06-26 |
| Raw Data Available | Yes |
| Raw Data File Type(s) | wiff |
| Analysis Type Detail | LC-MS |
| Release Date | 2024-07-10 |
| Release Version | 1 |
Select appropriate tab below to view additional metadata details:
Factors:
Subject type: Mammal; Subject species: Mus musculus (Factor headings shown in green)
| mb_sample_id | local_sample_id | Genotype | Treatment |
|---|---|---|---|
| SA289304 | 407 668 | Mutant | MMTV-NIC |
| SA289305 | 407 667 | Mutant | MMTV-NIC |
| SA289306 | 407 663 | Mutant | MMTV-NIC |
| SA289307 | 407 662 | Mutant | MMTV-NIC |
| SA289308 | 407 661 | Wild-type | Control |
| SA289309 | 407 669 | Wild-type | Control |
| SA289310 | 407 660 | Wild-type | Control |
| Showing results 1 to 7 of 7 |
