Summary of Study ST001862
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 PR001175. The data can be accessed directly via it's Project DOI: 10.21228/M8TM5F 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 | ST001862 |
| Study Title | Cross-feeding between intestinal pathobionts promotes their overgrowth during undernutrition |
| Study Summary | Child undernutrition is a global health issue associated with a high burden of infectious disease. Undernourished children display an overabundance of intestinal pathogens and pathobionts, and these bacteria induce enteric dysfunction in undernourished mice; however, the cause of their overgrowth remains poorly defined. Here, we show that disease-inducing human isolates of Enterobacteriaceae and Bacteroidales spp. are capable of multi-species symbiotic cross-feeding, resulting in synergistic growth of a mixed community in vitro. Growth synergy occurs uniquely under malnourished conditions limited in protein and iron: in this context, Bacteroidales spp. liberate diet- and mucin-derived sugars and Enterobacteriaceae spp. enhance the bioavailability of iron. Analysis of human microbiota datasets reveals that Bacteroidaceae and Enterobacteriaceae are strongly correlated in undernourished children, but not in adequately nourished children, consistent with a diet-dependent growth synergy in the human gut. Together these data suggest that dietary cross-feeding fuels the overgrowth of pathobionts in undernutrition. |
| Institute | University of British Columbia |
| Department | Michael Smith Laboratories |
| Last Name | Huus |
| First Name | Kelsey |
| Address | 3125 East Mall |
| khuus@msl.ubc.ca | |
| Phone | +1-604-822-2210 |
| Submit Date | 2021-07-11 |
| Raw Data Available | Yes |
| Raw Data File Type(s) | d |
| Analysis Type Detail | LC-MS |
| Release Date | 2021-11-06 |
| Release Version | 1 |
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Collection:
| Collection ID: | CO001932 |
| Collection Summary: | Bacteria were grown anaerobically at 37ºC in MAL-M medium. Culture supernatants at 0, 16 and 24h were collected by centrifugation at 16000 g for 20 minutes. Supernatants were filter sterilized at 0.22 µM and stored at -70ºC before analysis. |
| Sample Type: | Bacterial cells |
| Storage Conditions: | Described in summary |
