Oat-Derived β-Glucans Induced Trained Immunity Through Metabolic Reprogramming
- 1 August 2020
- journal article
- research article
- Published by Springer Science and Business Media LLC in Inflammation
- Vol. 43 (4), 1323-1336
- https://doi.org/10.1007/s10753-020-01211-2
Abstract
Trained immunity has been recently identified in innate immune cells, which undergo long-term epigenetic and metabolic reprogramming after exposure to pathogens for protection from secondary infections. (1, 3)/(1, 6)-beta-glucan derived from fungi can induce potent trained immunity; however, the effect of (1, 3)/(1, 4)-beta-glucan (rich in dietary fiber oat) on trained immunity has not been reported. In the present study, two cell culture systems for trained immunity induction were validated in monocytes/macrophages from mouse bone myeloid and human THP-1 cells exposed to positive inducers of trained immunity, including beta-glucan fromTrametes versicoloror human-oxidized low-density lipoprotein. Primed with oat beta-glucan, the mRNA expression and production of TNF-alpha and IL-6 significantly increased in response to re-stimulation of TLR-4/2 ligands. Moreover, the expression of several key enzymes in glycolytic pathway and tricarboxylic acid cycle was significantly upregulated. In addition, inhibiting these enzymes decreased the production of TNF-alpha and IL-6 boosted by oat beta-glucan. These results show that oat beta-glucan induces trained immunity through metabolic reprogramming. This provides important evidence that dietary fiber can maintain the long-term responsiveness of the innate immune system, which may benefit for prevention of infectious diseases or cancers.Funding Information
- National Natural Science Foundation of China (81871670, 81870854)
- Major Basic Research Project of Natural Science Foundation of the Jiangsu Higher Education Institutions of China (19KJA560003)
- Starting Foundation for Talents of Xuzhou Medical University (D2018003)
- Jiangsu Planned Projects for Postdoctoral Research Funds (2019K063)
This publication has 39 references indexed in Scilit:
- Yeast (1,3)-(1,6)-beta-glucan helps to maintain the body’s defence against pathogens: a double-blind, randomized, placebo-controlled, multicentric study in healthy subjectsEuropean Journal of Nutrition, 2013
- Bacille Calmette-Guérin induces NOD2-dependent nonspecific protection from reinfection via epigenetic reprogramming of monocytesProceedings of the National Academy of Sciences of the United States of America, 2012
- Candida albicans Infection Affords Protection against Reinfection via Functional Reprogramming of MonocytesCell Host & Microbe, 2012
- Randomized Trial of BCG Vaccination at Birth to Low-Birth-Weight Children: Beneficial Nonspecific Effects in the Neonatal Period?The Journal of Infectious Diseases, 2011
- Trained Immunity: A Memory for Innate Host DefenseCell Host & Microbe, 2011
- Immunomodulating and anticancer agents in the realm of macromycetes fungi (macrofungi)International Immunopharmacology, 2007
- Modeling the regulatory network of histone acetylation in Saccharomyces cerevisiaeMolecular Systems Biology, 2007
- Inverse association of farm milk consumption with asthma and allergy in rural and suburban populations across EuropeClinical & Experimental Allergy, 2006
- Adaptive innate immunity? Responsive-mode prophylaxis in the mealworm beetle,Tenebrio molitorProceedings. Biological sciences, 2003
- Routine vaccinations and child survival: follow up study in Guinea-Bissau, West Africa Commentary: an unexpected finding that needs confirmation or rejectionBMJ, 2000