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| Status |
Public on Oct 28, 2020 |
| Title |
Ascending colon-derived mucin-type O-glycans form key mucus layers encapsulating microbiota in the colon (16S rNA-seq) |
| Organism |
mouse gut metagenome |
| Experiment type |
Other
|
| Summary |
The colon contains a dense metabolically potent microbiota. The colonic O-glycan-rich mucus has been recognized as a key barrier to prevent microbial intrusion, but how this system forms and functions remains unclear. Here, we discovered that the colon mucus is mainly forged by microbiota-dependent secretion of O-glycosylated Muc2 by goblet cells in the ascending colon, where it seamlessly encapsulates the fecal materials including the microbiota. Deletion of O-glycans in the ascending colon impaired the segregating function of the mucous coating, leading to altered structure and metabolic output of the microbiota, and transcriptional homeostasis of the entire host mucosa. These findings represent a paradigm change of the prevailing model of the colon mucus system and provides new insights into host and microbiota symbiosis.
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| Overall design |
16S amplicon sequencing was performed on mouse colon samples derived from the ascending and descending colon. Differential microbial abundance was compared between 3 Groups of Healthy Control and O-glycan mutant littermates that were all colonized with the same microbiota
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| Contributor(s) |
Bergstrom K, Shan X, Casero D, Batushansky A, Lagishetty V, Jacobs JP, Hoover C, McDaniel JM, McGee S, Houchen CW, Rao C, Griffin T, Sonnenburg JL, McEver RP, Braun J, Xia L |
| Citation(s) |
33093110 |
| NIH grant(s) |
| Grant ID |
Grant title |
Affiliation |
Name |
| R01 DK085691 |
Role of Mucin-type O-glycans in Intestinal Inflammation |
OKLAHOMA MEDICAL RESEARCH FOUNDATION |
Lijun Xia |
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| Submission date |
Jun 25, 2019 |
| Last update date |
Jan 27, 2021 |
| Contact name |
David Casero |
| E-mail(s) |
[email protected]
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| Phone |
3108250274
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| Organization name |
UCLA
|
| Department |
Pathology and Laboratory Medicine
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| Street address |
610 Charles Young Drive East
|
| City |
Los Angeles |
| State/province |
CA |
| ZIP/Postal code |
90095 |
| Country |
USA |
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| Platforms (1) |
| GPL22735 |
Illumina HiSeq 2500 (mouse gut metagenome) |
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| Samples (30)
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| This SubSeries is part of SuperSeries: |
| GSE133257 |
Ascending colon-derived mucin-type O-glycans form key mucus layers encapsulating microbiota in the colon |
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| Relations |
| BioProject |
PRJNA550526 |
| SRA |
SRP211901 |
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