PMID- 34342160 OWN - NLM STAT- MEDLINE DCOM- 20211203 LR - 20211214 IS - 2050-4527 (Electronic) IS - 2050-4527 (Linking) VI - 9 IP - 4 DP - 2021 Dec TI - Pterostilbene suppresses oxidative stress and allergic airway inflammation through AMPK/Sirt1 and Nrf2/HO-1 pathways. PG - 1406-1417 LID - 10.1002/iid3.490 [doi] AB - INTRODUCTION: Pterostilbene (Pts) may be used for allergic asthma treatment. The AMPK/Sirt1 and Nrf2/HO-1 pathways are potential targets for asthma treatement. However, the relationship between Pts and AMPK/Sirt1 and Nrf2/HO-1 pathways in asthma is unclear. Herein, we aim to explore the pharmacological effects of Pts on oxidative stress and allergic inflammatory response as well as the mechanism involving AMPK/Sirt1 and Nrf2/HO-1 pathways. METHODS: Asthma model was established in mice with ovalbumin (OVA). The model mice were treated by different concentrations of Pts. Lung pathological changes were observed through histological staining. In vitro, lipopolysaccharide (LPS)-stimulated 16HBE cells were treated with Pts. The siAMPKalpha2, siSirt1 and siNrf2 knockdown, and treatment with compound C, EX-527 or ML385 were also performed in 16HBE cells. Enzyme-linked immunosorbent assay was used to detect interleukin-4 (IL-4), IL-13, IL-5, total and OVA specific immunoglobulin E (IgE), and interferon gamma (IFN-gamma). Pneumonography was used to measure the airway hyperreactivity (AHR). Superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA) levels were also detected. Immunohistochemistry, Western blot and immunofluorescence were used to measure protein levels. RESULTS: Pts significantly attenuated lung inflammatory cell infiltration and goblet cell proliferation. Meanwhile, Pts treatment could reduce IL-4, IL-13, IL-5, and IgE (total and OVA specific) levels in the asthma model mice. However, IFN-gamma in bronchoalveolar lavage fluid was elevated. In addition, Pts reduced AHR. We also found that Pts treatment promoted serum SOD and CAT, and reduced MDA. In vitro results showed that Pts treatment promoted iNOS, TNF-alpha, COX-2, IL-1beta, and IL-6 expressions in 16HBE cells, prolonged G0/G1 phase of the cell cycle, and resulted in a shortened G2M phase. Moreover, we found that Pts promoted the phosphorylation of AMPK in 16HBE, and meanwhile inhibited the increase of ROS induced by LPS. Additionally, Pts treatment inhibited p-AMPK, Sirt1, Nrf2 and HO-1, which in turn leads to the alleviation of AMPK/Sirt1 and Nrf2/HO-1 pathways. CONCLUSION: Pts alleviated oxidative stress and allergic airway inflammation via regulation of AMPK/Sirt1and Nrf2/HO-1 signaling pathways. CI - (c) 2021 The Authors. Immunity, Inflammation and Disease published by John Wiley & Sons Ltd. FAU - Xu, Chang AU - Xu C AD - Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, Jilin, China. AD - Department of Anatomy Histology and Embryology, Yanbian University Medical College, Yanji, Jilin, China. FAU - Song, Yilan AU - Song Y AD - Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, Jilin, China. AD - Department of Anatomy Histology and Embryology, Yanbian University Medical College, Yanji, Jilin, China. FAU - Wang, Zhiguang AU - Wang Z AD - Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, Jilin, China. AD - Department of Respiratory Medicine, Affiliated Hospital of Yanbian University, Yanji, Jilin, China. FAU - Jiang, Jingzhi AU - Jiang J AD - Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, Jilin, China. AD - Department of Anatomy Histology and Embryology, Yanbian University Medical College, Yanji, Jilin, China. FAU - Piao, Yihua AU - Piao Y AD - Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, Jilin, China. AD - Department of Intensive Care Unit, Affiliated Hospital of Yanbian University, Yanji, Jilin, China. FAU - Li, Li AU - Li L AD - Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, Jilin, China. AD - Department of Anatomy Histology and Embryology, Yanbian University Medical College, Yanji, Jilin, China. FAU - Jin, Shan AU - Jin S AD - Department of Dermatology, Yanbian University Hospital, Yanji, Jilin, China. FAU - Li, Liangchang AU - Li L AD - Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, Jilin, China. AD - Department of Anatomy Histology and Embryology, Yanbian University Medical College, Yanji, Jilin, China. FAU - Zhu, Lianhua AU - Zhu L AD - Department of Dermatology, Yanbian University Hospital, Yanji, Jilin, China. FAU - Yan, Guanghai AU - Yan G AUID- ORCID: 0000-0001-8058-7822 AD - Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, Jilin, China. AD - Department of Anatomy Histology and Embryology, Yanbian University Medical College, Yanji, Jilin, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210802 PL - England TA - Immun Inflamm Dis JT - Immunity, inflammation and disease JID - 101635460 RN - 0 (Cytokines) RN - 0 (NF-E2-Related Factor 2) RN - 0 (Stilbenes) RN - 26R60S6A5I (pterostilbene) RN - EC 2.7.11.31 (AMP-Activated Protein Kinases) RN - EC 3.5.1.- (Sirt1 protein, mouse) RN - EC 3.5.1.- (Sirtuin 1) SB - IM MH - AMP-Activated Protein Kinases MH - Animals MH - Cytokines/metabolism MH - Inflammation/drug therapy MH - Lung MH - Mice MH - Mice, Inbred BALB C MH - *NF-E2-Related Factor 2/metabolism MH - Oxidative Stress MH - *Sirtuin 1 MH - Stilbenes PMC - PMC8589405 OTO - NOTNLM OT - AMPK OT - HO-1 OT - Nrf2 OT - Pterostilbene (Pts) OT - Sirt 1 OT - oxidative stress COIS- The authors declare that there are no conflict of interests. EDAT- 2021/08/04 06:00 MHDA- 2021/12/15 06:00 PMCR- 2021/08/02 CRDT- 2021/08/03 07:01 PHST- 2021/07/02 00:00 [revised] PHST- 2021/04/27 00:00 [received] PHST- 2021/07/06 00:00 [accepted] PHST- 2021/08/04 06:00 [pubmed] PHST- 2021/12/15 06:00 [medline] PHST- 2021/08/03 07:01 [entrez] PHST- 2021/08/02 00:00 [pmc-release] AID - IID3490 [pii] AID - 10.1002/iid3.490 [doi] PST - ppublish SO - Immun Inflamm Dis. 2021 Dec;9(4):1406-1417. doi: 10.1002/iid3.490. Epub 2021 Aug 2.