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Gu X, Huang Z, Ying X, Liu X, Ruan K, Hua S, Zhang X, Jin H, Liu Q, Yang J. Ferroptosis exacerbates hyperlipidemic acute pancreatitis by enhancing lipid peroxidation and modulating the immune microenvironment. Cell Death Discov 2024; 10:242. [PMID: 38773098 PMCID: PMC11109150 DOI: 10.1038/s41420-024-02007-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 05/23/2024] Open
Abstract
Abnormal activation of ferroptosis worsens the severity of acute pancreatitis and intensifies the inflammatory response and organ damage, but the detailed underlying mechanisms are unknown. Compared with other types of pancreatitis, hyperlipidemic acute pancreatitis (HLAP) is more likely to progress to necrotizing pancreatitis, possibly due to peripancreatic lipolysis and the production of unsaturated fatty acids. Moreover, high levels of unsaturated fatty acids undergo lipid peroxidation and trigger ferroptosis to further exacerbate inflammation and worsen HLAP. This paper focuses on the malignant development of hyperlipidemic pancreatitis with severe disease combined with the core features of ferroptosis to explore and describe the mechanism of this phenomenon and shows that the activation of lipid peroxidation and the aberrant intracellular release of many inflammatory mediators during ferroptosis are the key processes that regulate the degree of disease development in patients with HLAP. Inhibiting the activation of ferroptosis effectively reduces the intensity of the inflammatory response, thus reducing organ damage in patients and preventing the risk of HLAP exacerbation. Additionally, this paper summarizes the key targets and potential therapeutic agents of ferroptosis associated with HLAP deterioration to provide new ideas for future clinical applications.
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Affiliation(s)
- Xinyi Gu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhicheng Huang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiuzhiye Ying
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaodie Liu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kaiyi Ruan
- Zhejiang University School of Medicine, Hangzhou, China
| | - Sijia Hua
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaofeng Zhang
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, Hangzhou, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, China
- Hangzhou Hospital & Institute of Digestive Diseases, Hangzhou, Hangzhou, China
| | - Hangbin Jin
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, Hangzhou, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, China
- Hangzhou Hospital & Institute of Digestive Diseases, Hangzhou, Hangzhou, China
| | - Qiang Liu
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, Hangzhou, China.
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, China.
- Hangzhou Hospital & Institute of Digestive Diseases, Hangzhou, Hangzhou, China.
| | - Jianfeng Yang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, Hangzhou, China.
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, China.
- Hangzhou Hospital & Institute of Digestive Diseases, Hangzhou, Hangzhou, China.
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Wang J, Su X, Jiang L, Boudreau MW, Chatkewitz LE, Kilgore JA, Zahid KR, Williams NS, Chen Y, Liu S, Hergenrother PJ, Huang X. Augmented Concentration of Isopentyl-Deoxynyboquinone in Tumors Selectively Kills NAD(P)H Quinone Oxidoreductase 1-Positive Cancer Cells through Programmed Necrotic and Apoptotic Mechanisms. Cancers (Basel) 2023; 15:5844. [PMID: 38136388 PMCID: PMC10741405 DOI: 10.3390/cancers15245844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Lung and breast cancers rank as two of the most common and lethal tumors, accounting for a substantial number of cancer-related deaths worldwide. While the past two decades have witnessed promising progress in tumor therapy, developing targeted tumor therapies continues to pose a significant challenge. NAD(P)H quinone oxidoreductase 1 (NQO1), a two-electron reductase, has been reported as a promising therapeutic target across various solid tumors. β-Lapachone (β-Lap) and deoxynyboquinone (DNQ) are two NQO1 bioactivatable drugs that have demonstrated potent antitumor effects. However, their curative efficacy has been constrained by adverse effects and moderate lethality. To enhance the curative potential of NQO1 bioactivatable drugs, we developed a novel DNQ derivative termed isopentyl-deoxynyboquinone (IP-DNQ). Our study revealed that IP-DNQ treatment significantly increased reactive oxygen species generation, leading to double-strand break (DSB) formation, PARP1 hyperactivation, and catastrophic energy loss. Notably, we discovered that this novel drug induced both apoptosis and programmed necrosis events, which makes it entirely distinct from other NQO1 bioactivatable drugs. Furthermore, IP-DNQ monotherapy demonstrated significant antitumor efficacy and extended mice survival in A549 orthotopic xenograft models. Lastly, we identified that in mice IP-DNQ levels were significantly elevated in the plasma and tumor compared with IB-DNQ levels. This study provides novel preclinical evidence supporting IP-DNQ efficacy in NQO1+ NSCLC and breast cancer cells.
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Affiliation(s)
- Jiangwei Wang
- Department of Radiation Oncology, Indianapolis, IN 46202, USA
| | - Xiaolin Su
- Department of Biochemistry and Molecular Biology, Indianapolis, IN 46202, USA
| | - Lingxiang Jiang
- Department of Radiation Oncology, Indianapolis, IN 46202, USA
| | - Matthew W. Boudreau
- Department of Chemistry and Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Lindsay E. Chatkewitz
- Department of Chemistry and Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Jessica A. Kilgore
- Department of Biochemistry, Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX 75390, USA (N.S.W.)
| | | | - Noelle S. Williams
- Department of Biochemistry, Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX 75390, USA (N.S.W.)
| | - Yaomin Chen
- Indiana University Health Pathology Laboratory, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Shaohui Liu
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Paul J. Hergenrother
- Department of Chemistry and Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Xiumei Huang
- Department of Radiation Oncology, Indianapolis, IN 46202, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Zheng L, Yang S, Xu R, Yang Y, Quan J, Lin Z, Quan C. NQO1 drives glioblastoma cell aggressiveness through EMT induction via the PI3K/Akt/mTOR/Snail pathway. Int J Oncol 2023; 63:110. [PMID: 37594082 PMCID: PMC10552716 DOI: 10.3892/ijo.2023.5558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 06/20/2023] [Indexed: 08/19/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most frequent and lethal cancer derived from the central nervous system, of which the mesenchymal (MES) subtype seriously influences the survival and prognosis of patients. NAD(P)H: quinone acceptor oxidoreductase 1 (NQO1) serves an important role in the carcinogenesis and progression of various types of cancer; however, the specific mechanism underlying the regulatory effects of NQO1 on GBM is unclear. Thus, the present study aimed to explore the role and mechanism of NQO1 in GBM progression. The results of bioinformatics analysis and immunohistochemistry showed that high expression of NQO1 was significantly related to the MES phenotype of GBM and shorter survival. In addition, MTT, colony formation, immunofluorescence and western blot analyses, and lung metastasis model experiments suggested that silencing NQO1 inhibited the proliferation and metastasis of GBM cells in vitro and in vivo. Furthermore, western blotting showed that the activity of the PI3K/Akt/mTOR signaling pathway was revealed to be inhibited by downregulation of NQO1 expression, whereas it was enhanced by overexpression of NQO1. Notably, co‑immunoprecipitation and ubiquitination experiments suggested that Snail was considered an important downstream target of NQO1 in GBM cells. Snail knockdown could eliminate the promoting effect of ectopic NQO1 on the proliferation and invasion of GBM cells, and reduce its effects on the activity of PI3K/Akt/mTOR signaling pathway. These results indicated that NQO1 could promote GBM aggressiveness by activating the PI3K/Akt/mTOR signaling pathway in a Snail‑dependent manner, and NQO1 and its relevant pathways may be considered novel targets for GBM therapy.
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Affiliation(s)
- Lan Zheng
- Central Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin 133002
- Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province Affiliated with Wenzhou Medical University, Linhai, Zhejiang 317000
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
| | - Shipeng Yang
- Central Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin 133002
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Ran Xu
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Yang Yang
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Jishu Quan
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Zhenhua Lin
- Central Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin 133002
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Chunhua Quan
- Central Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin 133002
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
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Ewees MGED, Orfali R, Rateb EE, Hassan HM, Hozzein WN, Alkhalfah DHM, Sree HTA, Abdel Rahman FEZS, Rateb ME, Mahmoud NI. Modulation of mi-RNA25/Ox-LDL/NOX4 signaling pathway by polyphenolic compound Hydroxytyrosol as a new avenue to alleviate cisplatin-induced acute kidney injury, a mechanistic study in rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 103:104262. [PMID: 37699441 DOI: 10.1016/j.etap.2023.104262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/16/2023] [Accepted: 09/06/2023] [Indexed: 09/14/2023]
Abstract
Acute kidney injury (AKI) caused by Cis is considered one of the most severe adverse effects, which restricts its use and efficacy. This study seeks to examine the potential reno-protective impact of phenolic compound Hydroxytyrosol (HT) against Cis-induced AKI and the possible involvement of the mi-RNA25/Ox-LDL/NOX4 pathway elucidating the probable implicated molecular mechanisms. Forty rats were placed into 5 groups. Group I received saline only. Group II received Cis only. Group III, IV, and V received 20, 50, and 100 mg/kg b.w, of HT, respectively, with Cis delivery. NOX4, Ox-LDL, and gene expression of mi-RNA 25, TNF-α, and HO-1 in renal tissue were detected. HT showed reno-protective effect and significantly upregulated mi-RNA 25 and HO-1 as well as decreased the expression of NOX4, Ox-LDL, and TNF-α. In conclusion, HT may be promising in the fight against Cis-induced AKI through modulation of mi-RNA25/Ox-LDL/NOX4 pathway.
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Affiliation(s)
- Mohamed Gamal El-Din Ewees
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Nahda University, Beni-Suef 11787, Egypt.
| | - Raha Orfali
- Department of Pharmacognosy, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Saudi Arabia.
| | - Enas Ezzat Rateb
- Department of Physiology, Faculty of Medicine, Beni-Suef University, Beni-Suef 62521, Egypt.
| | - Hossam M Hassan
- Department of Pharmacognosy, Faculty of Pharmacy, Nahda University, Beni-Suef 11787, Egypt.
| | - Wael N Hozzein
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt.
| | - Dalal Hussien M Alkhalfah
- Department of Biology. College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.
| | - Haidy Tamer Abo Sree
- Department of Basic Sciences Department, Biochemistry, Faculty of Oral and Dental Medicine, Nahda University, Beni-Suef 11787, Egypt.
| | - Fatema El-Zahraa S Abdel Rahman
- Department of Basic Sciences Department, Physiology, Faculty of Oral and Dental Medicine, Nahda University, Beni-Suef 11787, Egypt.
| | - Mostafa E Rateb
- School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK.
| | - Nesreen Ishak Mahmoud
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Nahda University, Beni-Suef 11787, Egypt.
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Li H, Wu D, Zhang H, Li P. New insights into regulatory cell death and acute pancreatitis. Heliyon 2023; 9:e18036. [PMID: 37519748 PMCID: PMC10372241 DOI: 10.1016/j.heliyon.2023.e18036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 07/01/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023] Open
Abstract
Acute pancreatitis (AP) may be associated with both local and systemic complications. Although it is usually self-limiting, up to 20% of patients develop severe acute pancreatitis (SAP), which leads to systemic inflammatory response syndrome (SIRS) and multiorgan dysfunction and failure affecting the lung, kidney, liver and heart. Patients who survive the condition frequently develop devastating long-term consequences such as diabetes mellitus, exocrine pancreatic insufficiency, chronic pancreatitis (CP) and poor quality of life. A lack of specific targeted treatments is the main reason for high mortality and morbidity, indicating that more research on the pathogenesis of AP is needed. In the past decade, substantial advancements have been made in our understanding of the pathophysiological mechanisms of AP, including mechanisms of calcium-mediated acinar cell injury and death, the cytoprotective role of the unfolded protein response (UPR) and autophagy in preventing sustained endoplasmic reticulum stress (ERs); however, the mechanism of parenchymal cell death is relatively poorly understood. This paper reviews the research progress of the regulatory cell death (RCD) mode in the pathogenesis of AP, providing some new insights and regulatory targets for the pathogenesis and treatment of AP, facilitating better targeted drug development.
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Chlorogenic acid attenuates inflammation in LPS-induced Human gingival fibroblasts via CysLT1R/Nrf2/NLRP3 signaling. Int Immunopharmacol 2022; 107:108706. [DOI: 10.1016/j.intimp.2022.108706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/09/2022] [Accepted: 03/12/2022] [Indexed: 12/15/2022]
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Orcinol Glucoside Improves Senile Osteoporosis through Attenuating Oxidative Stress and Autophagy of Osteoclast via Activating Nrf2/Keap1 and mTOR Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5410377. [PMID: 35585885 PMCID: PMC9110208 DOI: 10.1155/2022/5410377] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/28/2022] [Accepted: 04/04/2022] [Indexed: 12/21/2022]
Abstract
Oxidative stress and autophagy play essential roles in the development of senile osteoporosis which is characterized by disrupted osteoclastic bone resorption and osteoblastic bone formation. Orcinol glucoside (OG), a phenolic glycoside isolated from Curculigo orchioides Gaertn, possesses antiosteoporotic properties. This study examined the protective effects of OG on bone loss in SAMP6 mice and explored the underlying mechanisms. The osteoporotic SAMP6 mice were treated with OG oral administration. RAW264.7 cells were induced to differentiate into osteoclast by RANKL and H2O2 in vitro and received OG treatment. The results demonstrated that OG attenuated bone loss in SAMP6 mice and inhibited the formation and bone resorption activities of osteoclast and reduced levels of oxidative stress in bone tissue of SAMP6 mice and osteoclast. Furthermore, OG activated Nrf2/Keap1 signaling pathway and enhanced the phosphorylation of mTOR and p70S6K which are consequently suppressing autophagy. Of note, the effect of OG on Nrf2/Keap1 signaling was neutralized by the mTOR inhibitor rapamycin. Meanwhile, the inhibitory effect of OG on autophagy was reversed by the Nrf2 inhibitor ML385.Conclusively, OG attenuated bone loss by inhibiting formation, differentiation, and bone resorption activities of osteoclast. Regulation of Nrf2/Keap1 and mTOR signals is a possible mechanism by which OG suppressed oxidative and autophagy of osteoclasts. Thus, OG prevented senile osteoporosis through attenuating oxidative stress and autophagy of osteoclast via activating Nrf2/Keap1 and mTOR signaling pathway.
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Lycopene Inhibits IL-6 Expression by Upregulating NQO1 and HO-1 via Activation of Nrf2 in Ethanol/Lipopolysaccharide-Stimulated Pancreatic Acinar Cells. Antioxidants (Basel) 2022; 11:antiox11030519. [PMID: 35326169 PMCID: PMC8944646 DOI: 10.3390/antiox11030519] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/05/2022] [Accepted: 03/07/2022] [Indexed: 12/16/2022] Open
Abstract
In alcoholic pancreatitis, alcohol increases gut permeability, which increases the penetration of endotoxins, such as lipopolysaccharides (LPS). LPS act as clinically significant triggers to increase pancreatic damage in alcoholic pancreatitis. Ethanol or LPS treatment increases reactive oxygen species (ROS) production in pancreatic acinar cells. ROS induce inflammatory cytokine production in pancreatic acinar cells, leading to pancreatic inflammation. The nuclear erythroid-2-related factor 2 (Nrf2) pathway is activated as a cytoprotective response to oxidative stress, and induces the expression of NAD(P)H quinone oxidoreductase 1 (NQO1) and heme oxygenase-1 (HO-1). Lycopene exerts anti-inflammatory and antioxidant effects in various cells. We previously showed that lycopene inhibits NADPH oxidase to reduce ROS and IL-6 levels, and zymogene activation in ethanol or palmitoleic acid-treated pancreatic acinar cells. In this study, we examined whether lycopene inhibits IL-6 expression by activating the Nrf2/NQO1-HO-1 pathway, and reducing intracellular and mitochondrial ROS levels, in ethanol and LPS-treated pancreatic AR42J cells. Lycopene increased the phosphorylated and nuclear-translocated Nrf2 levels by decreasing the amount of Nrf2 sequestered in the cytoplasm via a complex formation with Kelch-like ECH1-associated protein 1 (Keap1). Using exogenous inhibitors targeting Nrf2 and HO-1, we showed that the upregulation of activated Nrf2 and HO-1 results in lycopene-induced suppression of IL-6 expression and ROS production. The consumption of lycopene-rich foods may prevent the development of ethanol and LPS-associated pancreatic inflammation by activating Nrf2-mediated expression of NQO1 and HO-1, thereby decreasing ROS-mediated IL-6 expression in pancreatic acinar cells.
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Kim HS, Lim JW, Kim H. Korean Red Ginseng Extract Inhibits IL-8 Expression via Nrf2 Activation in Helicobacter pylori-Infected Gastric Epithelial Cells. Nutrients 2022; 14:nu14051044. [PMID: 35268019 PMCID: PMC8912635 DOI: 10.3390/nu14051044] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 02/25/2022] [Accepted: 02/27/2022] [Indexed: 12/28/2022] Open
Abstract
Helicobacter pylori (H. pylori) causes gastric diseases by increasing reactive oxygen species (ROS) and interleukin (IL)-8 expression in gastric epithelial cells. ROS and inflammatory responses are regulated by the activation of nuclear factor erythroid-2-related factor 2 (Nrf2) and the expression of Nrf2 target genes, superoxide dismutase (SOD) and heme oxygenase-1 (HO-1). We previously demonstrated that Korean red ginseng extract (RGE) decreases H. pylori-induced increases in ROS and monocyte chemoattractant protein 1 in gastric epithelial cells. We determined whether RGE suppresses the expression of IL-8 via Nrf2 activation and the expression of SOD and HO-1 in H. pylori-infected gastric epithelial AGS cells. H. pylori-infected cells were treated with RGE with or without ML385, an Nrf2 inhibitor, or zinc protoporphyrin (ZnPP), a HO-1 inhibitor. Levels of ROS and IL-8 expression; abundance of Keap1, HO-1, and SOD; levels of total, nuclear, and phosphorylated Nrf2; indices of mitochondrial dysfunction (reduction in mitochondrial membrane potential and ATP level); and SOD activity were determined. As a result, RGE disturbed Nrf2–Keap1 interactions and increased nuclear Nrf2 levels in uninfected cells. H. pylori infection decreased the protein levels of SOD-1 and HO-1, as well as SOD activity, which was reversed by RGE treatment. RGE reduced H. pylori-induced increases in ROS and IL-8 levels as well as mitochondrial dysfunction. ML385 or ZnPP reversed the inhibitory effect of RGE on the alterations caused by H. pylori. In conclusion, RGE suppressed IL-8 expression and mitochondrial dysfunction via Nrf2 activation, induction of SOD-1 and HO-1, and reduction of ROS in H. pylori-infected cells.
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Affiliation(s)
| | | | - Hyeyoung Kim
- Correspondence: ; Tel.: +82-2-2123-3125; Fax: +82-2-364-5781
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ox-LDL-Induced Endothelial Progenitor Cell Oxidative Stress via p38/Keap1/Nrf2 Pathway. Stem Cells Int 2022; 2022:5897194. [PMID: 35140793 PMCID: PMC8820940 DOI: 10.1155/2022/5897194] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 01/09/2023] Open
Abstract
Background Nrf2 which was recently reported to regulate the antioxidant genes and cellular redox regulators was highly expressed in EPCs. However, its role in ox-LDL-induced EPC oxidative stress and apoptosis has not been fully illustrated. Methods EPCs isolated from human peripheral blood mononuclear cells were treated with different concentrations of ox-LDL, Keap1 siRNA, and a specific p38 MAPK inhibitor SB203580 and then used to assay the cytoplasmic Nrf2, nuclear Nrf2, NAD(P) H:quinone oxidoreductase 1 (NQO1) and Bax/Bcl-2 levels with Western blot, NQO1 mRNA levels with RT-PCR, ROS levels with H2DCF-DA, loss/disruption of mitochondrial membrane potential with JC-1, apoptosis with Annexin V and PI, migration with transwell chambers, and tube formation with Matrigel. Results ox-LDL decreased the nuclear Nrf2/Histone H3 to cytoplasmic Nrf2/GAPDH ratio, NQO1 mRNA, and protein levels. ox-LDL enhanced ROS production, induced the loss of membrane potential, and increased the cell shrinkage, pyknotic nuclei, and apoptosis of EPCs. Keap1 siRNA increased Nrf2 nuclear translocation, NQO1 mRNA transcription, and protein expression and prevented ROS generation and formation of JC-1 monomers. ox-LDL increased the activation of p38. SB203580 significantly eliminated ox-LDL induced inhibition of Nrf2 nuclear translocation, depression of NQO1 mRNA transcription, generation of ROS, and formation of JC-1 monomers in EPCs. Keap1 siRNA decreased the Bax/Bcl-2 ratio which was increased by ox-LDL in EPCs. ox-LDL decreased EPC migration and tube formation. Keap1 siRNA preserved the migration and tube formation of EPCs. Conclusion ox-LDL activated EPCs p38/Keap1/Nrf2 pathway and induced oxidative stress, dysfunction, and apoptosis of EPCs.
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Le Gal K, Schmidt EE, Sayin VI. Cellular Redox Homeostasis. Antioxidants (Basel) 2021; 10:antiox10091377. [PMID: 34573009 PMCID: PMC8469889 DOI: 10.3390/antiox10091377] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 08/26/2021] [Indexed: 01/07/2023] Open
Abstract
Cellular redox homeostasis is an essential and dynamic process that ensures the balance between reducing and oxidizing reactions within cells and regulates a plethora of biological responses and events. The study of these biochemical reactions has proven difficult over time, but recent technical and methodological developments have contributed to the rapid growth of the redox field and to our understanding of its importance in biology. The aim of this short review is to give the reader an overall understanding of redox regulation in the areas of cellular signaling, development, and disease, as well as to introduce some recent discoveries in those fields.
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Affiliation(s)
- Kristell Le Gal
- Institute of Clinical Sciences, Department of Surgery, Sahlgrenska Center for Cancer Research, University of Gothenburg, 405 30 Gothenburg, Sweden;
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Edward E. Schmidt
- Microbiology & Cell Biology, Montana State University, Bozeman, MT 59718, USA;
- McLaughlin Research Institute, Great Falls, MT 59405, USA
- Laboratory of Redox Biology, University of Veterinary Medicine, 1078 Budapest, Hungary
| | - Volkan I. Sayin
- Institute of Clinical Sciences, Department of Surgery, Sahlgrenska Center for Cancer Research, University of Gothenburg, 405 30 Gothenburg, Sweden;
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, 405 30 Gothenburg, Sweden
- Correspondence:
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Astaxanthin Inhibits Interleukin-6 Expression in Cerulein/Resistin-Stimulated Pancreatic Acinar Cells. Mediators Inflamm 2021; 2021:5587297. [PMID: 34349610 PMCID: PMC8328718 DOI: 10.1155/2021/5587297] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 06/10/2021] [Accepted: 07/04/2021] [Indexed: 12/12/2022] Open
Abstract
Acute pancreatitis is a common clinical condition with increasing the proinflammatory mediators, including interleukin-6 (IL-6). Obesity is a negative prognostic factor in acute pancreatitis. Obese patients with acute pancreatitis have a higher systemic inflammatory response rate. Levels of serum resistin, an adipocytokine secreted by fat tissues, increase with obesity. Cerulein, a cholecystokinin analog, induces calcium (Ca2+) overload, oxidative stress, and IL-6 expression in pancreatic acinar cells, which are hallmarks of acute pancreatitis. A recent study showed that resistin aggravates the expression of inflammatory cytokines in cerulein-stimulated pancreatic acinar cells. We aimed to investigate whether resistin amplifies cerulein-induced IL-6 expression and whether astaxanthin (ASX), an antioxidant carotenoid with anti-inflammatory properties, inhibits ceruelin/resistin-induced IL-6 expression in pancreatic acinar AR42J cells. We found that resistin enhanced intracellular Ca2+ levels, NADPH oxidase activity, intracellular reactive oxygen species (ROS) production, NF-κB activity, and IL-6 expression in cerulein-stimulated AR42J cells, which were inhibited by ASX in a dose-dependent manner. The calcium chelator BAPTA-AM inhibited cerulein/resistin-induced NADPH oxidase activation and ROS production. Antioxidant N-acetyl cysteine (NAC) and ML171, a specific NADPH oxidase 1 inhibitor, suppressed cerulein/resistin-induced ROS production, NF-κB activation, and IL-6 expression. In conclusion, ASX inhibits IL-6 expression, by reducing Ca2+ overload, NADPH oxidase-mediated ROS production, and NF-κB activity in cerulein/resistin-stimulated pancreatic acinar cells. Consumption of ASX-rich foods could be beneficial for preventing or delaying the incidence of obesity-associated acute pancreatitis.
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Liu M, Liu S, Zhang Q, Fang Y, Yu Y, Zhu L, Liu Y, Gong W, Zhao L, Qin L, Zhang Q. Curculigoside attenuates oxidative stress and osteoclastogenesis via modulating Nrf2/NF-κB signaling pathway in RAW264.7 cells. JOURNAL OF ETHNOPHARMACOLOGY 2021; 275:114129. [PMID: 33878416 DOI: 10.1016/j.jep.2021.114129] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/06/2021] [Accepted: 04/14/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Curculigo orchioides Gaertn is used for the treatment of impotence, atrophic debility of bones (osteoporosis), limb limpness, and arthritis of the lumbar and knee joints in traditional Chinese medicine and Ayurvedic medical system. Curculigoside (Cur) from Curculigo orchioides Gaertn has been shown to have regulatory effects on bone metabolism via anti-oxidative activities in rats and osteoblasts. However, little is known about the molecular pharmacological activity of Cur in osteoclastic bone resorption. AIM The aim of this work is to investigate the inhibitory effect of Cur against osteoclasts (OCs) under the oxidative stress status, and explore the possible underlying mechanism. MATERIALS AND METHODS OCs were induced from RAW264.7 cells using RANKL and H2O2. The number of OCs was measured by tartrate-resistant acid phosphatase (TRAP) staining. F-Actin and nuclear translocation of P65 and Nrf2 were stained with immunofluorescence assay and observed under a laser confocal microscope. The biochemical parameters of OCs were detected with an ELISA kit. The expression of Nrf2 and NF-κB pathway-related proteins was analyzed by Western Blot. RESULTS Cur inhibited the TRAP activity, release of degrading products from bone slices and the expression of NFATc1, c-Fos, Cathepsin K (Ctsk) and matrix metallopeptidase 9 (MMP9) of OCs induced with RANKL and H2O2. In addition, Cur suppressed the ROS level and NADPH oxidase 1(NOX1) and NADPH oxidase 4 (NOX4) activities of OCS. More importantly, Cur enhanced the expression and nucleus translocation of Nrf2 and activities of its regulatory cytoprotective enzymes, and reduced the NF-κB expression and phosphorylation and nucleus translocation of p65 in OCs. Furthermore, the Nrf2 inhibitor ML385 and NF-κB inhibitor Bay11-7082 counteracted the effect of Cur in OCs. CONCLUSION Cur mitigated oxidative stress and osteoclastogenesis by activating Nrf2 and inhibiting the NF-κB pathway, suggesting that Cur may prove to be a promising candidate for the treatment of osteoporosis. Our findings may also help partially explain the rationale behind the traditional use of Curculigo orchioides Gaertn.
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Affiliation(s)
- Mengqin Liu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Sha Liu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Qi Zhang
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yingqi Fang
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yanwei Yu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Lulin Zhu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yuling Liu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Wan Gong
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Luying Zhao
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Luping Qin
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; School of Pharmacy, Second Military Medical University, Shanghai, 200433, China.
| | - Qiaoyan Zhang
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; School of Pharmacy, Second Military Medical University, Shanghai, 200433, China.
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Li L, Peng L, Zhu J, Wu J, Zhao Y. [DJ-1 alleviates oxidative stress injury by activating the Nrf2 pathway in rats with cerebral ischemia-reperfusion injury]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:679-686. [PMID: 34134954 DOI: 10.12122/j.issn.1673-4254.2021.05.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the antioxidant effect of DJ-1 (Park7) in rats with cerebral ischemia/reperfusion (IR) injury and its potential mechanism. OBJECTIVE A total of 108 SD rats were randomly divided into sham-operated group, middle cerebral artery occlusion (MCAO) group, Scramble group, DJ-1 siRNA group, negative control (NC) group and DJ-1 overexpression group. Except for those in the sham group, all the rats were subjected to MCAO to establish models of cerebral IR injury. In DJ-1 siRNA and DJ-1 overexpression group, a DJ-1 siRNA and an adeno-associated virus vector carrying DJ-1 gene was injected into the lateral ventricle of the rats, respectively. In each group, neurological scores and brain water content were determined after the operation, and pathological changes of the brain tissue and neuronal injury in the cortical infarction area were assessed using HE and Nissl staining. Oxidative stress in the brain tissues was analyzed by detecting superoxide dismutase (SOD) and malondialdehyde (MDA). The expression levels of DJ-1, Nrf2, Ho-1 and NQO1 in the brain tissue were detected with Western blotting, and the expression and nucleation of Nrf2 was determined by immunofluorescence staining. OBJECTIVE Compared with those in MCAO group, the neurological scores (P < 0.001) and brain water content (P < 0.001) were significantly increased in DJ-1 siRNA group. Intracerebral injection of DJ-1 siRNA following MCAO obviously aggravated neuron injury in cerebral ischemia region, further reduced SOD activity and increased MDA content (P < 0.001), and significantly lowered the expression levels of Nrf2 and its downstream proteins HO-1 and NQO1 (P < 0.001). Intracerebral injection of the adenoviral vector for DJ-1 (P=0.003) overexpression significantly upregulated the levels of Nrf2 (P=0.006) and its downstream proteins HO-1 (P=0.004) and NQO1 (P=0.014). OBJECTIVE As an important neuroprotective factor, DJ-1 alleviates oxidative stress induced by cerebral IR injury in rats by activating the Nrf2 pathway.
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Affiliation(s)
- L Li
- Department of Pathology//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - L Peng
- Institute of Neuroscience//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - J Zhu
- Institute of Neuroscience//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - J Wu
- Institute of Neuroscience//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Y Zhao
- Institute of Neuroscience//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
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