{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,11]],"date-time":"2026-11-11T13:31:17Z","timestamp":1794403877035,"version":"4.9.0"},"reference-count":86,"publisher":"American Society for Microbiology","issue":"5","license":[{"start":{"date-parts":[[2025,5,20]],"date-time":"2025-05-20T00:00:00Z","timestamp":1747699200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,5,20]],"date-time":"2025-05-20T00:00:00Z","timestamp":1747699200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["mSystems"],"published-print":{"date-parts":[[2025,5,20]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title\/>\n                    <jats:p>\n                      Mucosal microbial communities (MMCs) are complex ecosystems near the mucosal layers of the gut essential for maintaining health and modulating disease states. Despite advances in high-throughput omics technologies, current methodologies struggle to capture the dynamic metabolic interactions and spatiotemporal variations within MMCs. In this work, we present\n                      <jats:italic toggle=\"yes\">Meta<\/jats:italic>\n                      Biome, a multiscale model integrating agent-based modeling (ABM), finite volume methods, and constraint-based models to explore the metabolic interactions within these communities. Integrating ABM allows for the detailed representation of individual microbial agents each governed by rules that dictate cell growth, division, and interactions with their surroundings. Through a layered approach\u2014encompassing microenvironmental conditions, agent information, and metabolic pathways\u2014we simulated different communities to showcase the potential of the model. Using our\n                      <jats:italic toggle=\"yes\">in-silico<\/jats:italic>\n                      platform, we explored the dynamics and spatiotemporal patterns of MMCs in the proximal small intestine and the cecum, simulating the physiological conditions of the two gut regions. Our findings revealed how specific microbes adapt their metabolic processes based on substrate availability and local environmental conditions, shedding light on spatial metabolite regulation and informing targeted therapies for localized gut diseases.\n                      <jats:italic toggle=\"yes\">Meta<\/jats:italic>\n                      Biome provides a detailed representation of microbial agents and their interactions, surpassing the limitations of traditional grid-based systems. This work marks a significant advancement in microbial ecology, as it offers new insights into predicting and analyzing microbial communities.\n                    <\/jats:p>\n                    <jats:sec>\n                      <jats:title>IMPORTANCE<\/jats:title>\n                      <jats:p>\n                        Our study presents a novel multiscale model that combines agent-based modeling, finite volume methods, and genome-scale metabolic models to simulate the complex dynamics of mucosal microbial communities in the gut. This integrated approach allows us to capture spatial and temporal variations in microbial interactions and metabolism that are difficult to study experimentally. Key findings from our model include the following: (i) prediction of metabolic cross-feeding and spatial organization in multi-species communities, (ii) insights into how oxygen gradients and nutrient availability shape community composition in different gut regions, and (iii) identification of spatiallyregulated metabolic pathways and enzymes in\n                        <jats:italic toggle=\"yes\">E. coli<\/jats:italic>\n                        . We believe this work represents a significant advance in computational modeling of microbial communities and provides new insights into the spatial regulation of gut microbiome metabolism. The multiscale modeling approach we have developed could be broadly applicable for studying other complex microbial ecosystems.\n                      <\/jats:p>\n                    <\/jats:sec>\n                  <\/jats:sec>","DOI":"10.1128\/msystems.01652-24","type":"journal-article","created":{"date-parts":[[2025,4,4]],"date-time":"2025-04-04T11:19:12Z","timestamp":1743765552000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":11,"title":["<i>Meta<\/i>\n                    Biome: a multiscale model integrating agent-based and metabolic networks to reveal spatial regulation in gut mucosal microbial communities"],"prefix":"10.1128","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4936-6535","authenticated-orcid":false,"given":"Javad","family":"Aminian-Dehkordi","sequence":"first","affiliation":[{"name":"Molecular Cell Biomechanics Laboratory, Departments of Bioengineering and Mechanical Engineering, University of California","place":["Berkeley, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1146-6346","authenticated-orcid":false,"given":"Andrew","family":"Dickson","sequence":"additional","affiliation":[{"name":"Molecular Cell Biomechanics Laboratory, Departments of Bioengineering and Mechanical Engineering, University of California","place":["Berkeley, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amin","family":"Valiei","sequence":"additional","affiliation":[{"name":"Molecular Cell Biomechanics Laboratory, Departments of Bioengineering and Mechanical Engineering, University of California","place":["Berkeley, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7004-4859","authenticated-orcid":true,"given":"Mohammad R. 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