Summary of Study ST002528
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 PR001627. The data can be accessed directly via it's Project DOI: 10.21228/M8D434 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 | ST002528 |
| Study Title | Concentrations of amino acids in interstitial fluid and whole tumor samples of a murine PDAC orthotopic tumor model, measured by LC-MS |
| Study Summary | We extracted polar metabolites from the interstitial fluid and whole tumor samples of orthotopic murine PDAC tumors. Weused LC-MS to measure the concentration of amino acids in the interstitial fluid of orthotopic murine PDAC tumors and compared this to the intratumoral concentrations. |
| Institute | University of Chicago |
| Last Name | Apiz Saab |
| First Name | Juan |
| Address | 929 E. 57th St. |
| japizsaab@uchicago.edu | |
| Phone | 7738346506 |
| Submit Date | 2023-03-23 |
| Raw Data Available | Yes |
| Raw Data File Type(s) | raw(Thermo) |
| Analysis Type Detail | LC-MS |
| Release Date | 2023-04-13 |
| Release Version | 1 |
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Project:
| Project ID: | PR001627 |
| Project DOI: | doi: 10.21228/M8D434 |
| Project Title: | Pancreatic tumors activate arginine biosynthesis to adapt to myeloid-driven amino acid stress |
| Project Summary: | Nutrient stress in the tumor microenvironment requires cancer cells to adopt adaptive metabolic programs to maintain survival and proliferation. Therefore, knowledge of microenvironmental nutrient levels and how cancer cells cope with such nutrition is critical to understand the metabolism underpinning cancer cell biology. Previously, we performed quantitative metabolomics of the interstitial fluid (the local perfusate) of murine pancreatic ductal adenocarcinoma (PDAC) tumors to comprehensively characterize nutrient availability in the microenvironment of these tumors (Sullivan et al., 2019a). Here, we develop Tumor Interstitial Fluid Medium (TIFM), a cell culture medium that contains nutrient levels representative of the PDAC microenvironment, enabling study of PDAC metabolism under physiological nutrition. We show that PDAC cells cultured in TIFM, compared to standard laboratory models, adopt a cellular state more similar to PDAC cells in tumors. Further, using the TIFM model we identified arginine biosynthesis as a metabolic adaptation PDAC cells engage to cope with microenvironmental arginine starvation driven by myeloid cells in PDAC tumors. Altogether, these data show that nutrient availability in tumors is an important determinant of cancer cell metabolism and behavior, and cell culture models that incorporate physiological nutrient availability have improved fidelity and enable the discovery of novel cancer metabolic phenotypes. |
| Institute: | University of Chicago |
| Last Name: | Apiz Saab |
| First Name: | Juan |
| Address: | 929 E. 57th St. |
| Email: | japizsaab@uchicago.edu |
| Phone: | 7738346506 |
