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Edillor, C.

Publications and source records attributed to Edillor, C..

3 recordsLinked to original sources

Enabling predictive modeling of molecular connections between fermented foods and human inflammation through a paired dataset of cell-based models and multi-omics approaches

Fermented foods are recognized for their rich microbial diversity and bioactive metabolites, which have recently been linked to anti-inflammatory effects and increased gut microbiome diversity. Despite extensive research on fermented foods including large-scale metagenomic surveys and metabolite characterization, a comprehensive mechanistic understanding of how diverse fermented foods, their microbes, and resulting metabolites interact with human biological pathways remains limited. Here, we systematically profiled over 100 commercially available fermented foods for their potential to prevent inflammation using a human cell-based model. We then generated bulk RNA sequencing of the human cells under these treatment conditions, along with metagenomic sequencing and metabolomics of the fermented foods used in the assays. By generating sample-matched multi-omics data, our work aims to lay the scientific groundwork that will enable scientists to generate predictive models and testable hypotheses about the molecular mechanisms underlying the anti-inflammatory effects of fermented foods. This open-source resource comprising all raw data and parsed intermediary files allows the community to begin elucidating the molecular mechanisms between fermented foods and human biology, paving the way for new, scientifically informed strategies for the user of fermented foods as functional foods.

microbiology↗

Leveraging publicly available datasets and machine learning approaches for predicting the health benefits of fermented foods

Fermented foods are an ancient, near universal component of human dietary culture and are increasingly recognized for their health benefits. Bioactive peptides and biosynthetic gene clusters (BGCs) produced by microbes during fermentation have been shown to be key mediators of human health benefits, such as ACE inhibitors and antibacterial bacteriocins. To broadly map this potential, we leveraged the growing abundance of publicly available fermented food datasets alongside recent advances in machine learning models for bioactivity prediction. We collected, curated, and re-analyzed multiple publicly available multi-omics datasets from diverse fermented foods, enabling cross-food comparisons of microbial and molecular profiles. Our analyses include profiling a curated database of [~]1,300 species-representative genomes across hundreds of fermented food metagenomes, predicting genome-encoded BGCs and peptides from 11,500 bacterial genomes, and applying machine learning classification models to predict the bioactivity of thousands of genome-encoded and peptidomics-detected peptides. These models predict 17 different bioactivities, providing novel, testable predictions for downstream experimental characterization. Most importantly, all curated resources, underlying computational tools, and resulting datasets are publicly available to the community, with an emphasis on creating tools and resources that are user-friendly and empower the community to generate more efficient and predictive models for future fermented foods research. A descriptive list of all generated resources is available below, with all computational tools available on GitHub at https://github.com/MicrocosmFoods and all raw files and datasets available on Zenodo at https://zenodo.org/communities/microcosmfoods/. ResourcesO_LIDataset with [~]13,500 genomes from [~]3,000 different samples representing 150 foods and 50 countries C_LIO_LISpecies-representative dataset with [~]1,300 genomes based on 95% ANI, with full functional annotations available as an explorable collection on SeqHub C_LIO_LIStrain-level representative dataset with [~]4,300 genomes based on 99% ANI, available as a free and publicly available narrative on KBase for users to run their own analyses with C_LIO_LIWorkflows for profiling metagenomic samples, performing functional annotation on bacterial genomes, and predicting peptide bioactivity using ML models C_LIO_LIPredicted biosynthetic gene clusters and peptides for [~]11,500 bacterial genomes C_LIO_LIPredicted bioactivities of peptides from [~]11,500 bacterial genomes and 5 proteomics datasets of fermented foods C_LI

microbiology↗

Epigenome-wide association in adipose tissue from the METSIM cohort identifies novel loci and the involvement of adipocytes and macrophages in diabetes traits

Most epigenome-wide association studies to date have been conducted in blood. However, metabolic syndrome is mediated by a dysregulation of adiposity and therefore it is critical to study adipose tissue in order to understand the effects of this syndrome on epigenomes. To determine if natural variation in DNA methylation was associated with metabolic syndrome traits, we profiled global methylation levels in subcutaneous abdominal adipose tissue. We measured association between 32 clinical traits related to diabetes and obesity in 201 people from the Metabolic Syndrome In Men cohort. We performed epigenome-wide association studies between DNA methylation levels and traits, and identified associations for 13 clinical traits in 21 loci. We prioritized candidate genes in these loci using eQTL, and identified 18 high confidence candidate genes, including known and novel genes associated with diabetes and obesity traits. Using methylation deconvolution, we examined which cell types may be mediating the associations, and concluded that most of the loci we identified were specific to adipocytes. We determined whether the abundance of cell types varies with metabolic traits, and found that macrophages increased in abundance with the severity of metabolic syndrome traits. Finally, we developed a DNA methylation based biomarker to assess type II diabetes risk in adipose tissue. In conclusion, our results demonstrate that profiling DNA methylation in adipose tissue is a powerful tool for understanding the molecular effects of metabolic syndrome on adipose tissue, and can be used in conjunction with traditional genetic analyses to further characterize this disorder.

genetics↗