Abstract
Mouse models are key tools for investigating host-microbiome interactions. However, shotgun metagenomics can only profile a limited fraction of the mouse gut microbiome. Here, we employ a metagenomic profiling method, MetaPhlAn 4, which exploits a large catalog of metagenome-assembled genomes (including 22,718 metagenome-assembled genomes from mice) to improve the profiling of the mouse gut microbiome. We combine 622 samples from eight public datasets and an additional cohort of 97 mouse microbiomes, and we assess the potential of MetaPhlAn 4 to better identify diet-related changes in the host microbiome using a meta-analysis approach. We find multiple, strong, and reproducible diet-related microbial biomarkers, largely increasing those identifiable by other available methods relying only on reference information. The strongest drivers of the diet-induced changes are uncharacterized and previously undetected taxa, confirming the importance of adopting metagenomic methods integrating metagenomic assemblies for comprehensive profiling.
Original language | English |
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Article number | 112464 |
Journal | Cell Reports |
Volume | 42 |
Issue number | 5 |
DOIs | |
State | Published - 30 May 2023 |
Bibliographical note
Funding Information:The work was supported by the European Research Council (ERC-STG project MetaPG-716575 and ERC-CoG microTOUCH-101045015) to N.S. and ERC-CoG (project grant agreement no. 101001355) to O.K. by the European H2020 program (ONCOBIOME-825410 project and MASTER-818368 project) to N.S. by the National Cancer Institute of the National Institutes of Health (1U01CA230551) to N.S. by the Premio Internazionale Lombardia e Ricerca 2019 to N.S. by the European Research Council under the European Union's Horizon 2020 Research and Innovation Programme (ERC-2016-StG-71577) to H.S. by VolkswagenStiftung's initiative “Niedersächsisches Vorab” (grant no. 76251-99) to T.S, and by the European Research Council (CoG 865466) to T.S. P.M. and N.S. conceived the study. A.B.-M. F.C. F.B. and E.P. contributed to the development of the MetaPhlAn version used in the work. P.M. and A.B.-M. performed most of the analyses. A.N. S.M. D.G. K.D.H. A.M.T. G.P. M.P. M.V.-C. M.Z. T.R.L. and F. Asnicar supported the design and validation of the methodology and contributed to the analyses. H.S. M.B. J.P. and J.G. collected the new mice samples. F. Armanini generated metagenomic data. P.M. A.B.-M. F. Asnicar, T.S. O.K. H.S. and N.S. wrote the paper with contribution and editing from all the authors. F. Asnicar and N.S. supervised the work. All the authors read and approved the final version of the manuscript. The authors declare no competing interests. We support inclusive, diverse, and equitable conduct of research.
Funding Information:
The work was supported by the European Research Council ( ERC-STG project MetaPG-716575 and ERC-CoG microTOUCH-101045015 ) to N.S. and ERC-CoG (project grant agreement no. 101001355 ) to O.K., by the European H2020 program ( ONCOBIOME-825410 project and MASTER-818368 project) to N.S., by the National Cancer Institute of the National Institutes of Health ( 1U01CA230551 ) to N.S., by the Premio Internazionale Lombardia e Ricerca 2019 to N.S., by the European Research Council under the European Union’s Horizon 2020 Research and Innovation Programme ( ERC-2016-StG-71577 ) to H.S., by VolkswagenStiftung’s initiative “Niedersächsisches Vorab” (grant no. 76251-99 ) to T.S, and by the European Research Council (CoG 865466) to T.S.
Publisher Copyright:
© 2023 The Authors
Keywords
- CP: Microbiology
- MetaPhlAn
- diet
- metagenomics
- mouse microbiome
- uncharacterized microbial species