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Title: New approaches to secondary metabolite discovery from anaerobic gut microbes

Journal Article · · Applied Microbiology and Biotechnology (Online)

Abstract The animal gut microbiome is a complex system of diverse, predominantly anaerobic microbiota with secondary metabolite potential. These metabolites likely play roles in shaping microbial community membership and influencing animal host health. As such, novel secondary metabolites from gut microbes hold significant biotechnological and therapeutic interest. Despite their potential, gut microbes are largely untapped for secondary metabolites, with gut fungi and obligate anaerobes being particularly under-explored. To advance understanding of these metabolites, culture-based and (meta)genome-based approaches are essential. Culture-based approaches enable isolation, cultivation, and direct study of gut microbes, and (meta)genome-based approaches utilize in silico tools to mine biosynthetic gene clusters (BGCs) from microbes that have not yet been successfully cultured. In this mini-review, we highlight recent innovations in this area, including anaerobic biofoundries like ExFAB, the NSF BioFoundry for Extreme & Exceptional Fungi, Archaea, and Bacteria. These facilities enable high-throughput workflows to study oxygen-sensitive microbes and biosynthetic machinery. Such recent advances promise to improve our understanding of the gut microbiome and its secondary metabolism. Key points • Gut microbial secondary metabolites have therapeutic and biotechnological potential • Culture- and (meta)genome-based workflows drive gut anaerobe metabolite discovery • Anaerobic biofoundries enable high-throughput workflows for metabolite discovery Graphical abstract

Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231; SC0020420; SC0022142
OSTI ID:
2504027
Journal Information:
Applied Microbiology and Biotechnology (Online), Journal Name: Applied Microbiology and Biotechnology (Online) Journal Issue: 1 Vol. 109; ISSN 1432-0614
Publisher:
Springer Science + Business MediaCopyright Statement
Country of Publication:
Germany
Language:
English

References (132)

Big Effects from Small Changes: Possible Ways to Explore Nature's Chemical Diversity journal July 2002
Closthioamide: An Unprecedented Polythioamide Antibiotic from the Strictly Anaerobic Bacterium Clostridium cellulolyticum journal February 2010
Discovery of Clostrubin, an Exceptional Polyphenolic Polyketide Antibiotic from a Strictly Anaerobic Bacterium journal May 2014
Biosynthesis of the Enterotoxic Pyrrolobenzodiazepine Natural Product Tilivalline journal October 2017
Unlocking Nature's Biosynthetic Power—Metabolic Engineering for the Fermentative Production of Chemicals journal October 2020
Single‐cell microliter‐droplet screening system (MISS Cell): An integrated platform for automated high‐throughput microbial monoclonal cultivation and picking journal December 2022
An efficient cre‐based workflow for genomic integration and expression of large biosynthetic pathways in Eubacterium limosum journal July 2024
Induced Production, Synthesis, and Immunomodulatory Action of Clostrisulfone, a Diarylsulfone from Clostridium acetobutylicum journal November 2020
Principles of Enrichment, Isolation, Cultivation, and Preservation of Prokaryotes book January 2013
Antimicrobial secondary metabolites from agriculturally important bacteria as next-generation pesticides journal December 2019
Gut bacteria of animals living in polluted environments exhibit broad-spectrum antibacterial activities journal March 2020
Co-cultivation of the anaerobic fungus Anaeromyces robustus with Methanobacterium bryantii enhances transcription of carbohydrate active enzymes journal May 2019
Frontier studies on natural products: moving toward paradigm shifts journal January 2023
Chemical communication in the gut: Effects of microbiota-generated metabolites on gastrointestinal bacterial pathogens journal August 2015
The role of gut microbiota in health and disease: In vitro modeling of host-microbe interactions at the aerobe-anaerobe interphase of the human gut journal April 2017
Biosynthesis of lovastatin and (+)-geodin by Aspergillus terreus in batch and fed-batch culture in the stirred tank bioreactor journal December 2008
Aeration costs in stirred-tank and bubble column bioreactors journal November 2017
Lovastatin production: From molecular basis to industrial process optimization journal November 2015
Synthetic biology-inspired strategies and tools for engineering of microbial natural product biosynthetic pathways journal July 2021
Accessing hidden microbial biosynthetic potential from underexplored sources for novel drug discovery journal September 2023
Role of oxygen gradients in shaping redox relationships between the human intestine and its microbiota journal February 2013
The Natural Product Domain Seeker version 2 (NaPDoS2) webtool relates ketosynthase phylogeny to biosynthetic function journal October 2022
RiPPMiner-Genome: A Web Resource for Automated Prediction of Crosslinked Chemical Structures of RiPPs by Genome Mining journal May 2021
The phenomenon of microbial uncultivability journal October 2013
A method to analyze, sort, and retain viability of obligate anaerobic microorganisms from complex microbial communities journal October 2015
Automating the design-build-test-learn cycle towards next-generation bacterial cell factories journal May 2023
The unsung roles of microbial secondary metabolite effectors in the plant disease cacophony journal August 2022
A review of technologies for in-situ sulfide control in anaerobic digestion journal April 2022
Practical guide on MALDI-TOF MS method development for high throughput profiling of pharmaceutically relevant, small molecule chemical reactions journal September 2020
Microbial production of bulk chemicals: development of anaerobic processes journal April 2011
Thermodynamics-based design of microbial cell factories for anaerobic product formation journal September 2015
Natural Products from Mammalian Gut Microbiota journal May 2019
Development of a clostridia-based cell-free system for prototyping genetic parts and metabolic pathways journal November 2020
Automated engineering of synthetic metabolic pathways for efficient biomanufacturing journal January 2021
Metabolic engineering of commensal bacteria for gut butyrate delivery and dissection of host-microbe interaction journal November 2023
Acoustic Ejection Mass Spectrometry for High-Throughput Analysis journal July 2021
Ozone Decontamination of Medical and Nonmedical Devices: An Assessment of Design and Implementation Considerations journal March 2023
Natural Products as Sources of New Drugs over the Nearly Four Decades from 01/1981 to 09/2019 journal March 2020
AutoBioTech─A Versatile Biofoundry for Automated Strain Engineering journal July 2024
Top-Down Enrichment Guides in Formation of Synthetic Microbial Consortia for Biomass Degradation journal August 2019
Towards a new science of secondary metabolism journal April 2013
Production of the antimalarial drug precursor artemisinic acid in engineered yeast journal April 2006
A framework for human microbiome research journal June 2012
Structure, function and diversity of the healthy human microbiome journal June 2012
A metagenome-wide association study of gut microbiota in type 2 diabetes journal September 2012
Cultivation and sequencing of rumen microbiome members from the Hungate1000 Collection journal March 2018
Microbial metabolic exchange—the chemotype-to-phenotype link journal December 2011
Symptomatic atherosclerosis is associated with an altered gut metagenome journal January 2012
Current understanding of the human microbiome journal April 2018
Semi-synthetic artemisinin: a model for the use of synthetic biology in pharmaceutical development journal April 2014
Gut microbiota-derived metabolites in the regulation of host immune responses and immune-related inflammatory diseases journal March 2021
Discovery of antifungal secondary metabolites from an intestinal fungus Fusarium sp. journal December 2023
Building a global alliance of biofoundries journal May 2019
An anaerobic bacterium host system for heterologous expression of natural product biosynthetic gene clusters journal August 2019
Comprehensive prediction of secondary metabolite structure and biological activity from microbial genome sequences journal November 2020
A versatile genetic engineering toolkit for E. coli based on CRISPR-prime editing journal September 2021
Microbial production of advanced biofuels journal June 2021
When anaerobes encounter oxygen: mechanisms of oxygen toxicity, tolerance and defence journal June 2021
The gut microbiota and its biogeography journal September 2023
Identification of bioactive metabolites using activity metabolomics journal February 2019
The Integrative Human Microbiome Project journal May 2019
A unified catalog of 204,938 reference genomes from the human gut microbiome journal July 2020
Identification of antimicrobial peptides from the human gut microbiome using deep learning journal March 2022
High-throughput microbial culturomics using automation and machine learning journal February 2023
gutSMASH predicts specialized primary metabolic pathways from the human gut microbiota journal February 2023
Scalable, compressed phenotypic screening using pooled perturbations journal October 2024
A genetics-free method for high-throughput discovery of cryptic microbial metabolites journal January 2019
Prospecting for natural products by genome mining and microcrystal electron diffraction journal July 2021
Machine learning-powered antibiotics phenotypic drug discovery journal March 2019
The human microbial exposome: expanding the Exposome-Explorer database with gut microbial metabolites journal February 2023
A genomic approach to the cryptic secondary metabolome of the anaerobic world journal January 2013
Connecting metabolome and phenotype: recent advances in functional metabolomics tools for the identification of bioactive natural products journal January 2024
SlipChip journal January 2009
Clostrindolin is an antimycobacterial pyrone alkaloid from Clostridium beijerinckii journal January 2019
Molecular-phylogenetic characterization of microbial community imbalances in human inflammatory bowel diseases journal August 2007
Microbes vs. chemistry in the origin of the anaerobic gut lumen journal April 2018
Anaerobic gut fungi are an untapped reservoir of natural products journal April 2021
Microbiome composition modulates secondary metabolism in a multispecies bacterial community journal October 2022
Gut dysbiosis: Ecological causes and causative effects on human disease journal December 2023
Recent advances in genome mining and synthetic biology for discovery and biosynthesis of natural products journal August 2024
Gut microbiota as a source of novel antimicrobials journal May 2018
The protective role of commensal gut microbes and their metabolites against bacterial pathogens journal May 2024
Streptomyces, shared microbiome member of soil and gut, as ‘old friends’ against colon cancer journal June 2018
sBGC-hm: an atlas of secondary metabolite biosynthetic gene clusters from the human gut microbiome journal March 2023
ARTS 2.0: feature updates and expansion of the Antibiotic Resistant Target Seeker for comparative genome mining journal May 2020
BiG-FAM: the biosynthetic gene cluster families database journal October 2020
AMDB: a database of animal gut microbial communities with manually curated metadata journal November 2021
MIBiG 3.0: a community-driven effort to annotate experimentally validated biosynthetic gene clusters journal November 2022
Activating natural product synthesis using CRISPR interference and activation systems in Streptomyces journal July 2022
antiSMASH 7.0: new and improved predictions for detection, regulation, chemical structures and visualisation journal May 2023
Building a biofoundry journal December 2020
The role of animal hosts in shaping gut microbiome variation journal March 2024
Discovery of a novel lantibiotic nisin O from Blautia obeum A2-162, isolated from the human gastrointestinal tract journal September 2017
An Evaluation of the Gaspak System in the Culture of Anaerobic Bacteria journal March 1972
Biofilm-growing intestinal anaerobic bacteria journal July 2012
Glycan Foraging in Vivo by an Intestine-Adapted Bacterial Symbiont journal March 2005
Small molecules from the human microbiota journal July 2015
A metagenomic strategy for harnessing the chemical repertoire of the human microbiome journal October 2019
Evaluation of the AnaeroPack system for growth of clinically significant anaerobes journal March 1997
Broad-Host-Range Expression Reveals Native and Host Regulatory Elements That Influence Heterologous Antibiotic Production in Gram-Negative Bacteria journal September 2017
Cocultivation of Anaerobic Fungi with Rumen Bacteria Establishes an Antagonistic Relationship journal August 2021
TaxiBGC: a Taxonomy-Guided Approach for Profiling Experimentally Characterized Microbial Biosynthetic Gene Clusters and Secondary Metabolite Production Potential in Metagenomes journal December 2022
International Cancer Microbiome Consortium consensus statement on the role of the human microbiome in carcinogenesis journal May 2019
A Natural Product Chemist's Guide to Unlocking Silent Biosynthetic Gene Clusters journal June 2021
A convenient and versatile culturomics platform to expand the human gut culturome of Lachnospiraceae and Oscillospiraceae journal October 2024
Automated High-Throughput System Combining Small-Scale Synthesis with Bioassays and Reaction Screening journal December 2021
Genome mining for ribosomally synthesized and post-translationally modified peptides (RiPPs) in anaerobic bacteria journal January 2014
Metabolic engineering of Clostridium ljungdahlii for the production of hexanol and butanol from CO2 and H2 journal May 2022
Human reference gut microbiome catalog including newly assembled genomes from under-represented Asian metagenomes journal August 2021
UmetaFlow: an untargeted metabolomics workflow for high-throughput data processing and analysis journal May 2023
Stress and defense responses in plant secondary metabolites production journal July 2019
Advances in the isolation, cultivation, and identification of gut microbes journal June 2024
Revised Estimates for the Number of Human and Bacteria Cells in the Body journal August 2016
A design of experiments approach for the rapid formulation of a chemically defined medium for metabolic profiling of industrially important microbes journal June 2019
Expression of biosynthetic gene clusters in heterologous hosts for natural product production and combinatorial biosynthesis journal October 2006
Advances in high‐throughput mass spectrometry in drug discovery journal December 2022
Phylogenomic Analyses of Non-Dikarya Fungi Supports Horizontal Gene Transfer Driving Diversification of Secondary Metabolism in the Amphibian Gastrointestinal Symbiont, Basidiobolus journal September 2020
Mass Spectrometric Analysis of Bioactive Conditioned Media of Bacteria Isolated From Reptilian Gut journal May 2023
Engineered acetogenic bacteria as microbial cell factory for diversified biochemicals journal July 2024
Gas Fermentation—A Flexible Platform for Commercial Scale Production of Low-Carbon-Fuels and Chemicals from Waste and Renewable Feedstocks journal May 2016
Fungal and Bacterial Pigments: Secondary Metabolites with Wide Applications journal June 2017
Exploring Structural Diversity of Microbe Secondary Metabolites Using OSMAC Strategy: A Literature Review journal February 2019
Enhancing chemical and biological diversity by co-cultivation journal February 2023
Untargeted MS-Based Metabolomic Analysis of Termite Gut-Associated Streptomycetes with Antifungal Activity against Pyrrhoderma noxium journal August 2023
Links between Diet, Intestinal Anaerobes, Microbial Metabolites and Health journal May 2023
Ligiamycins A and B, Decalin-Amino-Maleimides from the Co-Culture of Streptomyces sp. and Achromobacter sp. Isolated from the Marine Wharf Roach, Ligia exotica journal January 2022
Advanced Methods for Natural Products Discovery: Bioactivity Screening, Dereplication, Metabolomics Profiling, Genomic Sequencing, Databases and Informatic Tools, and Structure Elucidation journal May 2023
Proteobacteria Overgrowth and Butyrate-Producing Taxa Depletion in the Gut Microbiota of Glycogen Storage Disease Type 1 Patients journal March 2020
Pentaminomycins C–E: Cyclic Pentapeptides as Autophagy Inducers from a Mealworm Beetle Gut Bacterium journal September 2020
Terpenes and Terpenoids: Building Blocks to Produce Biopolymers journal August 2021
Medium Preparation for the Cultivation of Microorganisms under Strictly Anaerobic/Anoxic Conditions journal August 2019
Droplet-based high-throughput cultivation for accurate screening of antibiotic resistant gut microbes journal June 2020