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GNPS - LC-MS/MS metabolomes of fecal samples from zoo mammals

ABSTRACT: LC-MS/MS metabolomes of fecal samples from 101 individuals from 25 mammalian species, in collaboration with a zoo. DDA data for molecular networking. Collected on a qExactive and includes fecal samples, dietary samples, and quality control samples. See linked datasets: MSV000083859, https://www.ncbi.nlm.nih.gov/bioproject/PRJNA693262/

INSTRUMENT(S): Q Exactive

ORGANISM(S): Mammalia (ncbitaxon:40674)

SUBMITTER: Itzhak Mizrahi Michael M. Meijler

PROVIDER: MSV000086131 | GNPS |

REPOSITORIES: GNPS

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Publications

Mammalian gut metabolomes mirror microbiome composition and host phylogeny.

Gregor Rachel R Probst Maraike M Eyal Stav S Aksenov Alexander A Sasson Goor G Horovitz Igal I Dorrestein Pieter C PC Meijler Michael M MM Mizrahi Itzhak I

The ISME journal 20211213 5

In the past decade, studies on the mammalian gut microbiome have revealed that different animal species have distinct gut microbial compositions. The functional ramifications of this variation in microbial composition remain unclear: do these taxonomic differences indicate microbial adaptations to host-specific functionality, or are these diverse microbial communities essentially functionally redundant, as has been indicated by previous metagenomics studies? Here, we examine the metabolic conten ...[more]

PMID: 34903850

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GNPS - GC-MS metabolomes of fecal samples from zoo mammals

Project description:GC-MS single quad metabolomes of fecal samples from 101 individual animals from 25 mammalian species, in collaboration with a zoo. Includes fecal samples, dietary samples, and quality control samples. See linked datasets: MSV000086131, https://www.ncbi.nlm.nih.gov/bioproject/PRJNA693262/ Reference: Gregor, R., Probst, M., Eyal, S. et al. Mammalian gut metabolomes mirror microbiome composition and host phylogeny. ISME J (2021). https://doi.org/10.1038/s41396-021-01152-0

2019-05-26 | MSV000083859 | GNPS

GNPS - LC-MS/MS lipidomes of fecal samples from zoo mammals

Project description:LC-MS/MS lipidomes of fecal samples from 101 individuals from 25 mammalian species, in collaboration with a zoo. Includes fecal samples, dietary samples, and quality control samples. DDA data for molecular networking. Collected on a qExactive in positive and negative mode, extraction method: methyl-t-butyl ether fraction from MTBE/methanol/water. See linked datasets: MSV000083859, MSV000086131, https://www.ncbi.nlm.nih.gov/bioproject/PRJNA693262/ [doi:10.25345/C55R2D] [dataset license: CC0 1.0 Universal (CC0 1.0)]

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Fecal proteomics as a novel method to study mammalian behavior and physiology

Project description:Mammalian feces can be collected non-invasively during field research and provides valuable information on the ecology and evolution of the host individuals. Undigested food objects, genome/metagenome, steroid hormones, and stable isotopes obtained from fecal samples provide evidence on diet, host/symbiont genetics, and physiological status of the individuals. However, proteins in mammalian feces have hardly been studied, which hampers the molecular investigations into the behavior and physiology of the host individuals. Here, we apply mass spectrometry-based proteomics to fecal samples (n = 10) that were collected from infant, juvenile, and adult captive Japanese macaques (Macaca fuscata) to describe the proteomes of the host, food, and intestinal microbes. The results show that fecal proteomics is a useful method to investigate dietary changes along with breastfeeding and weaning, to reveal the organ/tissue and taxonomy of dietary items, and to estimate physiological status inside intestinal tracts. These types of insights are difficult or impossible to obtain through other molecular approaches. Most mammalian species are facing extinction risk and there is an urgent need to obtain knowledge on their ecology and evolution for better conservation strategy. The fecal proteomics framework we present here is easily applicable to wild settings and other mammalian species, and provides direct evidence of their behavior and physiology.

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FoxA1 directs the lineage and immunosuppressive properties of FoxA1+ regulatory T cells in EAE and MS

Project description:Affymetrix gene expression analysis was carried out to investigate the differences in gene profile of MBP89-101-reactive encephalitogenic T cells before and after co-culture with cerebellar granular neurons (CGNs). Co-culture of MBP89-101-reactive encephalitogenic T cells with CGNs leads to generation of T cells with regulatory T cells phenotype (CD4+CD25+membrane bound TGF-b+ T cells) or a new regulatory phenotype (CD4highPD-L1high T cells). CGN-induced CD4+CD25+membrane bound TGF-b+ T regulatory cells, CD4highPD-L1high T cells were purified by FACSAria. IFN-beta induced T lymphocytes (CD4highPD-L1high T cells) were also FACSAria purified. All these populations were compared to MBP89-101-reactive encephalitogenic T cells. Samples were prepared from biological triplicates for each FACSAria sorted population.

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