Glycogen metabolism reprogramming promotes inflammation in coal dust-exposed lung

Autor: Wenyang Wang, Min Mu, Yuanjie Zou, Songsong Deng, Yuting Lu, Qinglong Li, Zeyu Li, Huihui Tao, Yun Wang, Xinrong Tao
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Ecotoxicology and Environmental Safety, Vol 242, Iss , Pp 113913- (2022)
Druh dokumentu: article
ISSN: 0147-6513
DOI: 10.1016/j.ecoenv.2022.113913
Popis: Long-term coal dust exposure triggers complex inflammatory processes in the coal workers’ pneumoconiosis (CWP) lungs. The progress of the inflammation is reported to be affected by disordered cell metabolism. However, the changes in the metabolic reprogramming associated with the pulmonary inflammation induced by the coal dust particles are unknown. Herein, we show that coal dust exposure causes glycogen accumulation and the reprogramming of glucose metabolism in the CWP lung. The glycogen accumulation caused by coal dust is mainly due to macrophages, which reprogram glycogen metabolism and trigger an inflammatory response. In addition, 2-deoxy-D-glucose (2-DG) reduced glycogen content in macrophages, which was accompanied by mitigated inflammation and restrained NF-κB activation. Accordingly, we have pinpointed a novel and crucial metabolic pathway that is an essential regulator of the inflammatory phenotype of coal dust-exposed macrophages. These results shed light on new ways to regulate CWP inflammation.
Databáze: Directory of Open Access Journals