Immune checkpoint-blocking antibodies that attenuate immune tolerance have been used to effectively treat cancer, but they can also trigger severe immune-related adverse events. Previously, we found that could mitigate intestinal immunopathology in the context of CTLA-4 blockade in mice. Here we examined the mechanism underlying this process. We found that altered the composition of the gut microbiota systematically in a regulatory T cell (Treg)-dependent manner. Moreover, this altered commensal community enhanced both the mitochondrial fitness and the IL-10-mediated suppressive functions of intestinal Tregs, contributing to the amelioration of colitis during immune checkpoint blockade.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7959554 | PMC |
| http://dx.doi.org/10.1073/pnas.1921223117 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Warming-driven migration of enterotypes mediates host health and disease statuses in ectotherm Litopenaeus vannamei.
Commun Biol
January 2025
State Key Laboratory of Biocontrol, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China.
Global warming has threatened all-rounded hierarchical biosphere by reconstructing eco-structure and bringing biodiversity variations. Pacific white shrimp, a successful model of worldwide utilizing marine ectothermic resources, is facing huge losses due to multiple diseases relevant to intestinal microbiota (IM) dysbiosis during temperature fluctuation. However, how warming mediates shrimp health remains poorly understood.
View Article and Find Full Text PDFMucus-penetrating microbiota drive chronic low-grade intestinal inflammation and metabolic dysregulation.
Gut Microbes
December 2025
Microbiome-Host Interactions, Institut Pasteur, Université Paris Cité, INSERM U1306, CNRS UMR6047, Paris, France.
Metabolic syndrome is, in humans, associated with alterations in the composition and localization of the intestinal microbiota, including encroachment of bacteria within the colon's inner mucus layer. Possible promoters of these events include dietary emulsifiers, such as carboxymethylcellulose (CMC) and polysorbate-80 (P80), which, in mice, result in altered microbiota composition, encroachment, low-grade inflammation and metabolic syndrome. While assessments of gut microbiota composition have largely focused on fecal/luminal samples, we hypothesize an outsized role for changes in mucus microbiota in driving low-grade inflammation and its consequences.
View Article and Find Full Text PDFGrasping Post-Traumatic Stress Disorder (PTSD) from the Perspective of Psychoneuroimmunoendocrinology (PNIE): Etiopathogenic Mechanisms and Relevance for the Integrative Management.
Biol Psychiatry
January 2025
Department of Medicine and Medical Specialities, CIBEREHD, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain. Electronic address:
Post-Traumatic Stress Disorder (PTSD) is a debilitating condition caused by exposure to traumatic events, affecting 5-10% of the population, with increased prevalence among women and individuals in war zones. Beyond psychological symptoms, PTSD induces significant physiological changes across systems. Psychoneuroimmunoendocrinology (PNIE) offers a framework to explore these complex interactions between the psyche and the nervous, immune, and endocrine systems.
View Article and Find Full Text PDFEarly-Life Antibiotic Exposures: Paving the Pathway for Dysbiosis-Induced Disorders.
Eur J Pharmacol
January 2025
School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor, 11800, Penang, Malaysia. Electronic address:
Microbiota encompasses a diverse array of microorganisms inhabiting specific ecological niches. Gut microbiota significantly influences physiological processes, including gastrointestinal motor function, neuroendocrine signalling, and immune regulation. They play a crucial role in modulating the central nervous system and bolstering body defence mechanisms by influencing the proliferation and differentiation of innate and adaptive immune cells.
View Article and Find Full Text PDFCombining Gut Microbiota Modulation and Immunotherapy: A Promising Approach for Treating Microsatellite Stable Colorectal Cancer.
Crit Rev Oncol Hematol
January 2025
The Cancer Research Institute and the Second Affiliated Hospital, Hengyang Medical School, University of South China (USC), Hunan 421001, China; Hunan Provincial Key Laboratory of Basic and Clinical Pharmacological Research of Gastrointestinal Cancer, USC, Hunan 421001, China; MOE Key Lab of Rare Pediatric Diseases, Hengyang Medical School, USC, Hunan 421001, China; National Health Commission Key Laboratory of Birth Defect Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, USC, Hunan 410008, China. Electronic address:
Colorectal cancer (CRC) is one of the most prevalent and lethal cancers worldwide, ranking third in incidence and second in mortality. While immunotherapy has shown promise in patients with deficient mismatch repair (dMMR) or high microsatellite instability (MSI-H), its effectiveness in proficient mismatch repair (pMMR) or microsatellite stable (MSS) CRC remains limited. Recent advances highlight the gut microbiota as a potential modulator of anti-tumor immunity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!