Cited by 104Cancer Immunotherapy and BiomarkersGut microbiota and healthT-cell and B-cell Immunology

Interaction of bacterial genera associated with therapeutic response to immune checkpoint PD-1 blockade in a United States cohort

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Newsome, Rachel C., Gharaibeh, Raad Z., Pierce, Christine M., da Silva, Wildson Vieira, Paul, Shirlene, Hogue, Stephanie R., Yu, Qin, Antonia, Scott +3 more·2022·Genome Medicine

Abstract

BACKGROUND: Recent studies show that human gut microbial composition can determine whether a patient is a responder or non-responder to immunotherapy but have not identified a common microbial signal shared by responding patients. The functional relationship between immunity, intestinal microbiota, and NSCLC response to immune checkpoint inhibitor/inhibition (ICI) in an American cohort remains unexplored. METHODS: RNAlater-preserved fecal samples were collected from 65 pre-treatment (baseline) and post-treatment stage III/IV NSCLC patients undergoing ICI therapy, categorized as responders or non-responders according to RECIST criteria. Pooled and individual responder and non-responder microbiota were transplanted into a gnotobiotic mouse model of lung cancer and treated with ICIs. 16S rDNA and RNA sequencing was performed on patient fecal samples, 16S rDNA sequencing on mouse fecal samples, and flow cytometric analysis on mouse tumor tissue. RESULTS: Responder patients have both a different microbial community structure than non-responders (P = 0.004) and a different bacterial transcriptome (PC2 = 0.03) at baseline. Taxa significantly enriched in responders include amplicon sequence variants (ASVs) belonging to the genera Ruminococcus, Akkermansia, and Faecalibacterium. Pooled and individual responder microbiota transplantation into gnotobiotic mice decreased tumor growth compared to non-responder colonized mice following ICI (P = 0.023, P = 0.019, P = 0.008, respectively). Responder tumors showed an increased anti-tumor cellular phenotype following ICI treatment. Responder mice are enriched with ASVs belonging to the genera Bacteroides, Blautia, Akkermansia, and Faecalibacterium. Overlapping taxa mapping between human and mouse cohorts correlated with tumor size and weight revealed a network highlighting responder-associated ASVs belonging to the genera Colidextribacter, Frisingicoccus, Marvinbryantia, and Blautia which have not yet been reported. CONCLUSIONS: The role of isolate-specific function and bacterial gene expression in gut microbial-driven responsiveness to ICI has been underappreciated. This work supports further investigation using isolate-driven models to characterize the mechanisms underlying this phenomenon.

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  1. [34]Newsome RC, Gharaibeh RZ, Pierce CM, da Silva WV, Paul S, Hogue SR, et al. RNAseq a network of bacterial genera associated with therapeutic response to immune checkpoint PD-1 blockade in a United States cohort. Sequence Read Arch. 2021. https://www.ncbi.nlm.nih.gov/bioproject/PRJNA767368/. PMC8961902 35346337
  2. [35]Newsome RC, Gharaibeh RZ, Pierce CM, da Silva WV, Paul S, Hogue SR, et al. 16S human for a network of bacterial genera associated with therapeutic response to immune checkpoint PD-1 blockade in a United States cohort. Sequence Read Arch. 2021. https://www.ncbi.nlm.nih.gov/bioproject/PRJNA768678/. PMC8961902 35346337
  3. [36]Newsome RC, Gharaibeh RZ, Pierce CM, da Silva WV, Paul S, Hogue SR, et al. 16S mouse study for a network of bacterial genera associated with therapeutic response to immune checkpoint PD-1 blockade in a United States cohort. Sequence Read Arch. 2021. https://www.ncbi.nlm.nih.gov/bioproject/PRJNA768820/. PMC8961902 35346337

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Authors
Newsome, R. C., Gharaibeh, R. Z., Pierce, C. M., da Silva, W. V., Paul, S., Hogue, S. R., Yu, Q., Antonia, S., Conejo-Garcia, J. R., Robinson, L. A., & Jobin, C.
Affiliations
  • University of Florida Health (US)
  • Merck & Co., Inc., Rahway, NJ, USA (United States) (US)
  • Moffitt Cancer Center (US)
Corresponding author
Jobin, Christian
Venue
Genome Medicine
Published
2022-03-29
Volume
14
Issue
1
Pages
35-35
ISSN
1756-994X (ISSN-L)
OpenAlex
W4221050169
Cited by
104
References
34
Citations by year
2026: 21 · 2025: 34 · 2024: 23 · 2023: 19 · 2022: 7
FWCI
8.68
Type
journal article
Language
en
Open access
Locations
  • Genome Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • University of Florida (TL1TR001428, UL1 TR001427)
  • Moffitt Cancer Center (P30CA076292, CA076292)
  • National Institutes of Health (UL1TR001427, TL1TR001428)
  • University of Florida Health (UL1TR001427)
  • International Centre for Bamboo and Rattan
  • National Cancer Institute (P30CA076292, T32CA257923)
  • National Center for Advancing Translational Sciences
  • State of Florida
Topics
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
gut microbiota, immune checkpoint inhibitors, anti-PD-1 therapy, non-small cell lung cancer, immunotherapy response, bacterial gene expression, Akkermansia, Faecalibacterium, Blautia, Ruminococcus, microbiota transplantation, gnotobiotic mouse model, antitumor immunity, bacterial genera
MeSH terms
Gastrointestinal Microbiome, Immune Checkpoint Inhibitors, Animals, Carcinoma, Non-Small-Cell Lung, Humans, Lung Neoplasms, United States, Mice, Programmed Cell Death 1 Receptor

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