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Published in: BMC Cancer 1/2021

Open Access 01-12-2021 | Lung Cancer | Research article

Prospective correlation between the patient microbiome with response to and development of immune-mediated adverse effects to immunotherapy in lung cancer

Authors: Justin Chau, Meeta Yadav, Ben Liu, Muhammad Furqan, Qun Dai, Shailesh Shahi, Arnav Gupta, Keri Nace Mercer, Evan Eastman, Taher Abu Hejleh, Carlos Chan, George J. Weiner, Catherine Cherwin, Sonny T. M. Lee, Cuncong Zhong, Ashutosh Mangalam, Jun Zhang

Published in: BMC Cancer | Issue 1/2021

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Abstract

Background

Though the gut microbiome has been associated with efficacy of immunotherapy (ICI) in certain cancers, similar findings have not been identified for microbiomes from other body sites and their correlation to treatment response and immune related adverse events (irAEs) in lung cancer (LC) patients receiving ICIs.

Methods

We designed a prospective cohort study conducted from 2018 to 2020 at a single-center academic institution to assess for correlations between the microbiome in various body sites with treatment response and development of irAEs in LC patients treated with ICIs. Patients must have had measurable disease, ECOG 0–2, and good organ function to be included. Data was collected for analysis from January 2019 to October 2020. Patients with histopathologically confirmed, advanced/metastatic LC planned to undergo immunotherapy-based treatment were enrolled between September 2018 and June 2019. Nasal, buccal and gut microbiome samples were obtained prior to initiation of immunotherapy +/− chemotherapy, at development of adverse events (irAEs), and at improvement of irAEs to grade 1 or less.

Results

Thirty-seven patients were enrolled, and 34 patients were evaluable for this report. 32 healthy controls (HC) from the same geographic region were included to compare baseline gut microbiota. Compared to HC, LC gut microbiota exhibited significantly lower α-diversity. The gut microbiome of patients who did not suffer irAEs were found to have relative enrichment of Bifidobacterium (p = 0.001) and Desulfovibrio (p = 0.0002). Responders to combined chemoimmunotherapy exhibited increased Clostridiales (p = 0.018) but reduced Rikenellaceae (p = 0.016). In responders to chemoimmunotherapy we also observed enrichment of Finegoldia in nasal microbiome, and increased Megasphaera but reduced Actinobacillus in buccal samples. Longitudinal samples exhibited a trend of α-diversity and certain microbial changes during the development and resolution of irAEs.

Conclusions

This pilot study identifies significant differences in the gut microbiome between HC and LC patients, and their correlation to treatment response and irAEs in LC. In addition, it suggests potential predictive utility in nasal and buccal microbiomes, warranting further validation with a larger cohort and mechanistic dissection using preclinical models.

Trial registration

ClinicalTrials.gov, NCT03688347. Retrospectively registered 09/28/2018.
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Metadata
Title
Prospective correlation between the patient microbiome with response to and development of immune-mediated adverse effects to immunotherapy in lung cancer
Authors
Justin Chau
Meeta Yadav
Ben Liu
Muhammad Furqan
Qun Dai
Shailesh Shahi
Arnav Gupta
Keri Nace Mercer
Evan Eastman
Taher Abu Hejleh
Carlos Chan
George J. Weiner
Catherine Cherwin
Sonny T. M. Lee
Cuncong Zhong
Ashutosh Mangalam
Jun Zhang
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2021
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/s12885-021-08530-z

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