PMID- 38098038 OWN - NLM STAT- MEDLINE DCOM- 20231216 LR - 20231217 IS - 1465-993X (Electronic) IS - 1465-9921 (Print) IS - 1465-9921 (Linking) VI - 24 IP - 1 DP - 2023 Dec 14 TI - Acarbose reduces Pseudomonas aeruginosa respiratory tract infection in type 2 diabetic mice. PG - 312 LID - 10.1186/s12931-023-02619-8 [doi] LID - 312 AB - BACKGROUND: Type 2 diabetes mellitus (T2DM) is widely prevalent worldwide, and respiratory tract infections (RTIs) have become the primary cause of death for T2DM patients who develop concurrent infections. Among these, Pseudomonas aeruginosa infection has been found to exhibit a high mortality rate and poor prognosis and is frequently observed in bacterial infections that are concurrent with COVID-19. Studies have suggested that acarbose can be used to treat T2DM and reduce inflammation. Our objective was to explore the effect of acarbose on P. aeruginosa RTI in T2DM individuals and elucidate its underlying mechanism. METHODS: High-fat diet (HFD) induction and P. aeruginosa inhalation were used to establish a RTI model in T2DM mice. The effect and mechanism of acarbose administered by gavage on P. aeruginosa RTI were investigated in T2DM and nondiabetic mice using survival curves, pathological examination, and transcriptomics. RESULTS: We found that P. aeruginosa RTI was more severe in T2DM mice than in nondiabetic individuals, which could be attributed to the activation of the NF-kappaB and TREM-1 signaling pathways. When acarbose alleviated P. aeruginosa RTI in T2DM mice, both HIF-1alpha and NF-kappaB signaling pathways were inhibited. Furthermore, inhibition of the calcium ion signaling pathway and NF-kappaB signaling pathway contributed to the attenuation of P. aeruginosa RTI by acarbose in nondiabetic mice. CONCLUSIONS: This study confirmed the attenuating effect of acarbose on P. aeruginosa RTIs in T2DM and nondiabetic mice and investigated its mechanism, providing novel support for its clinical application in related diseases. CI - (c) 2023. The Author(s). FAU - Liu, Lin AU - Liu L AD - Department of Otolaryngology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, People's Republic of China. AD - Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, People's Republic of China. AD - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China. FAU - Fan, Haiyang AU - Fan H AD - Department of Otolaryngology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, People's Republic of China. AD - Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, People's Republic of China. AD - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China. FAU - Li, Liang AU - Li L AD - Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, People's Republic of China. lil@sustech.edu.cn. AD - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China. lil@sustech.edu.cn. FAU - Fan, Yunping AU - Fan Y AD - Department of Otolaryngology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, People's Republic of China. zhfanyp@163.com. LA - eng GR - JCYJ20190809143601759/Shenzhen Fundamental Research Program/ GR - JCYJ20190809143601759/Shenzhen Fundamental Research Program/ GR - SZSM202111005/Sanming Project of Medicine in Shenzhen/ PT - Journal Article DEP - 20231214 PL - England TA - Respir Res JT - Respiratory research JID - 101090633 RN - T58MSI464G (Acarbose) RN - 0 (NF-kappa B) SB - IM MH - Humans MH - Mice MH - Animals MH - Acarbose/pharmacology/therapeutic use MH - *Diabetes Mellitus, Type 2/drug therapy MH - Pseudomonas aeruginosa/metabolism MH - NF-kappa B/metabolism MH - *Diabetes Mellitus, Experimental/drug therapy MH - *Pseudomonas Infections/drug therapy MH - *Respiratory Tract Infections/drug therapy PMC - PMC10722695 OTO - NOTNLM OT - Acarbose OT - NF-kappaB signaling pathway OT - P. aeruginosa OT - Respiratory tract infection OT - Type 2 diabetes mellitus COIS- No conflicts of interest, financial or otherwise. EDAT- 2023/12/15 06:42 MHDA- 2023/12/17 17:43 PMCR- 2023/12/14 CRDT- 2023/12/15 00:20 PHST- 2023/09/10 00:00 [received] PHST- 2023/11/28 00:00 [accepted] PHST- 2023/12/17 17:43 [medline] PHST- 2023/12/15 06:42 [pubmed] PHST- 2023/12/15 00:20 [entrez] PHST- 2023/12/14 00:00 [pmc-release] AID - 10.1186/s12931-023-02619-8 [pii] AID - 2619 [pii] AID - 10.1186/s12931-023-02619-8 [doi] PST - epublish SO - Respir Res. 2023 Dec 14;24(1):312. doi: 10.1186/s12931-023-02619-8.