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Hu L, Liu Y, Yuan Z, Guo H, Duan R, Ke P, Meng Y, Tian X, Xiao F. Glucose-6-phosphate dehydrogenase alleviates epileptic seizures by repressing reactive oxygen species production to promote signal transducer and activator of transcription 1-mediated N-methyl-d-aspartic acid receptors inhibition. Redox Biol 2024; 74:103236. [PMID: 38875958 DOI: 10.1016/j.redox.2024.103236] [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: 05/09/2024] [Revised: 06/07/2024] [Accepted: 06/07/2024] [Indexed: 06/16/2024] Open
Abstract
The pathogenesis of epilepsy remains unclear; however, a prevailing hypothesis suggests that the primary underlying cause is an imbalance between neuronal excitability and inhibition. Glucose-6-phosphate dehydrogenase (G6PD) is a key enzyme in the pentose phosphate pathway, which is primarily involved in deoxynucleic acid synthesis and antioxidant defense mechanisms and exhibits increased expression during the chronic phase of epilepsy, predominantly colocalizing with neurons. G6PD overexpression significantly reduces the frequency and duration of spontaneous recurrent seizures. Furthermore, G6PD overexpression enhances signal transducer and activator of transcription 1 (STAT1) expression, thus influencing N-methyl-d-aspartic acid receptors expression, and subsequently affecting seizure activity. Importantly, the regulation of STAT1 by G6PD appears to be mediated primarily through reactive oxygen species signaling pathways. Collectively, our findings highlight the pivotal role of G6PD in modulating epileptogenesis, and suggest its potential as a therapeutic target for epilepsy.
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Affiliation(s)
- Liqin Hu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Major Neurological and Mental Disorders, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, China
| | - Yan Liu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Major Neurological and Mental Disorders, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, China
| | - Ziwei Yuan
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Major Neurological and Mental Disorders, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, China
| | - Haokun Guo
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Major Neurological and Mental Disorders, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, China
| | - Ran Duan
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Major Neurological and Mental Disorders, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, China
| | - Pingyang Ke
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Major Neurological and Mental Disorders, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, China
| | - Yuan Meng
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Major Neurological and Mental Disorders, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, China
| | - Xin Tian
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Major Neurological and Mental Disorders, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, China; Key Laboratory of Major Brain Disease and Aging Research (Ministry of Education), Chongqing Medical University, Chongqing, 400016, China.
| | - Fei Xiao
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Major Neurological and Mental Disorders, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, China; Key Laboratory of Major Brain Disease and Aging Research (Ministry of Education), Chongqing Medical University, Chongqing, 400016, China.
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Wang R, Zhao Y, Zhou L, Lin F, Wan M, Gan A, Wu B, Yan T, Jia Y. Costunolide ameliorates MNNG-induced chronic atrophic gastritis through inhibiting oxidative stress and DNA damage via activation of Nrf2. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155581. [PMID: 38810553 DOI: 10.1016/j.phymed.2024.155581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/27/2024] [Accepted: 04/01/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND Chronic atrophic gastritis (CAG) is a chronic digestive disease. Modern research has revealed substantial evidence indicating that the progression of CAG is closely linked to the occurrence of oxidative stress-induced DNA damage and apoptosis in the gastric mucosa. Additionally, research has indicated that Costunolide (COS), the primary active compound found in Aucklandiae Radix, a traditional herb, exhibits antioxidant properties. Nevertheless, the therapeutic potential of COS in treating CAG and its molecular targets have not yet been determined. PURPOSE The objective of this research was to explore the potential gastric mucosal protective effects and mechanisms of COS against N-Methyl-N´-nitro-N-nitrosoguanidine (MNNG)-induced CAG. METHODS Firstly, the MNNG-induced rat CAG model was established in vivo. Occurrence of CAG was detected through macroscopic examination of the stomachs and H&E staining. Additionally, we assessed oxidative stress, DNA damage, and apoptosis using biochemical detection, Western blot, immunohistochemistry and immunofluorescence. Then, an in vitro model was developed to induce MNNG-induced damage in GES-1 cells, and the occurrence of cell damage was determined by Hoechst 33,342 staining and flow cytometry. Finally, the key targets of COS for the treatment of CAG were identified through molecular docking, cellular thermal shift assay (CETSA), and inhibitor ML385. RESULTS In vivo studies demonstrated that COS promotes the expression of Nrf2 in gastric tissues. This led to an increased expression of SOD, GSH, HO-1, while reducing the production of MDA. Furthermore, COS inhibited DNA damage and apoptosis by suppressing the expression of γH2AX and PARP1 in gastric tissues. In vitro studies showed that COS effectively reversed apoptosis induced by MNNG in GES-1 cells. Additionally, COS interacted with Nrf2 to promote its expression. Furthermore, the expression levels of SOD, GSH, and HO-1 were augmented, while the generation of ROS and MDA was diminished. CONCLUSIONS Our results indicate that COS exhibits therapeutic effects on CAG through the promotion of Nrf2 expression and inhibition of oxidative stress and DNA damage. Therefore, COS has the potential to provide new drugs for the treatment of CAG.
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Affiliation(s)
- Ruixuan Wang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, 110016, China
| | - Youdong Zhao
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, 110016, China
| | - Lei Zhou
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, 110016, China
| | - Fei Lin
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, 110016, China
| | - Meiqi Wan
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, 110016, China
| | - Anna Gan
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, 110016, China
| | - Bo Wu
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, 110016, China
| | - Tingxu Yan
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, 110016, China.
| | - Ying Jia
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, 110016, China.
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Kumar Saini S, Singh D. Mitochondrial mechanisms in Cerebral Ischemia-Reperfusion Injury: Unravelling the intricacies. Mitochondrion 2024; 77:101883. [PMID: 38631511 DOI: 10.1016/j.mito.2024.101883] [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: 01/01/2024] [Revised: 04/05/2024] [Accepted: 04/13/2024] [Indexed: 04/19/2024]
Abstract
Cerebral ischemic stroke is a major contributor to physical impairments and premature death worldwide. The available reperfusion therapies for stroke in the form of mechanical thrombectomy and intravenous thrombolysis increase the risk of cerebral ischemia-reperfusion (I-R) injury due to sudden restoration of blood supply to the ischemic region. The injury is manifested by hemorrhagic transformation, worsening of neurological impairments, cerebral edema, and progression to infarction in surviving patients. A complex network of multiple pathological processes has been known to be involved in the pathogenesis of I-R injury. Primarily, 3 major contributors namely oxidative stress, neuroinflammation, and mitochondrial failure have been well studied in I-R injury. A transcription factor, Nrf2 (Nuclear factor erythroid 2-related factor 2) plays a crucial defensive role in resisting the deleterious effects of I-R injury and potentiating the cellular protective mechanisms. In this review, we delve into the critical function of mitochondria and Nrf2 in the context of cerebral I-R injury. We summarized how oxidative stress, neuroinflammation, and mitochondrial anomaly contribute to the pathophysiology of I-R injury and further elaborated the role of Nrf2 as a pivotal guardian of cellular integrity. The review further highlighted Nrf2 as a putative therapeutic target for mitochondrial dysfunction in cerebral I-R injury management.
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Affiliation(s)
- Shiv Kumar Saini
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Damanpreet Singh
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Zhu W, Dong J, Han Y. Electroacupuncture Downregulating Neuronal Ferroptosis in MCAO/R Rats by Activating Nrf2/SLC7A11/GPX4 Axis. Neurochem Res 2024:10.1007/s11064-024-04185-x. [PMID: 38819696 DOI: 10.1007/s11064-024-04185-x] [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: 09/13/2023] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 06/01/2024]
Abstract
Ischemic stroke involves various pathological processes, among which ferroptosis is crucial. Previous studies by our group have indicated that electroacupuncture (EA) mitigates ferroptosis after ischemic stroke; however, the precise mechanism underlying this effect remains unclear. In the present study, we developed a rat model of middle cerebral artery occlusion/reperfusion. We chose the main acupoint of the treatment methods of the "Awakening and Opening of the Brain". Rats' neurological function and motor coordination were evaluated by neurological function score and the rotarod test, respectively, and the volume of cerebral infarction was analyzed by 2,3,5-triphenyltetrazolium chloride Staining. The cerebrovascular conditions were visualized by time-of-flight magentic resonance angiography. In addition, we detected changes in lipid peroxidation and endogenous antioxidant activity by measuring the malondialdehyde, glutathione, superoxide dismutase activities, glutathione/oxidized glutathione and reduced nicotinamide adenine dinucleotide phosphate/oxidized nicotinamide adenine dinucleotide phosphate ratios. Inductively coupled plasma-mass spectrometry, western blot, reverse transcription-polymerase chain reaction, fluoro-jade B staining, immunofluorescence analysis, and transmission electron microscopy were utilized to examine the influence of EA. The results indicate that EA treatment was effective in reversing neurological impairment, neuronal damage, and protecting mitochondrial morphology and decreasing the cerebral infarct volume in the middle cerebral artery occlusion/reperfusion rat model. EA reduced iron levels, inhibited lipid peroxidation, increased endogenous antioxidant activity, modulated the expression of several ferroptosis-related proteins, and promoted nuclear factor-E2-related factor 2 (Nrf2) nuclear translocation. However, the protective effect of EA was hindered by the Nrf2 inhibitor ML385. These findings suggest that EA can suppress ferroptosis and decrease damage caused by cerebral ischemia/reperfusion by activating Nrf2 and increasing the protein expression of solute carrier family 7 member 11 and glutathione peroxidase 4.
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Affiliation(s)
- Wei Zhu
- Institute of Neurology, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Jianjian Dong
- Institute of Neurology, Anhui University of Chinese Medicine, Hefei, Anhui, China
- Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yongsheng Han
- Institute of Neurology, Anhui University of Chinese Medicine, Hefei, Anhui, China.
- Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Anhui University of Chinese Medicine, Hefei, Anhui, China.
- Wannan Medical College, Wuhu, Anhui, China.
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Chen D, Duan H, Zou C, Yang R, Zhang X, Sun Y, Luo X, Lv D, Chen P, Shen Z, He B. 20(R)-ginsenoside Rg3 attenuates cerebral ischemia-reperfusion injury by mitigating mitochondrial oxidative stress via the Nrf2/HO-1 signaling pathway. Phytother Res 2024; 38:1462-1477. [PMID: 38246696 DOI: 10.1002/ptr.8118] [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: 08/26/2023] [Revised: 11/12/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024]
Abstract
Reducing mitochondrial oxidative stress has become an important strategy to prevent neuronal death in ischemic stroke. Previous studies have shown that 20(R)-ginsenoside Rg3 can significantly improve behavioral abnormalities, reduce infarct size, and decrease the number of apoptotic neurons in cerebral ischemia/reperfusion injury rats. However, it remains unclear whether 20(R)-ginsenoside Rg3 can inhibit mitochondrial oxidative stress in ischemic stroke and the potential molecular mechanism. In this study, we found that 20(R)-ginsenoside Rg3 notably inhibited mitochondrial oxidative stress in middle cerebral artery occlusion/reperfusion (MCAO/R) rats and maintained the stability of mitochondrial structure and function. Treatment with 20(R)-ginsenoside Rg3 also decreased the levels of mitochondrial fission proteins (Drp1 and Fis1) and increased the levels of fusion proteins (Opa1, Mfn1, and Mfn2) in MCAO/R rats. Furthermore, we found that 20(R)-ginsenoside Rg3 promoted nuclear aggregation of nuclear factor erythroid2-related factor 2 (Nrf2) but did not affect Kelch-like ECH-associated protein-1 (Keap1), resulting in the downstream expression of antioxidants. In in vitro oxygen-glucose deprivation/reperfusion stroke models, the results of PC12 cells treated with 20(R)-ginsenoside Rg3 were consistent with animal experiments. After transfection with Nrf2 short interfering RNA (siRNA), the protective effect of 20(R)-ginsenoside Rg3 on PC12 cells was reversed. In conclusion, the inhibition of mitochondrial oxidative stress plays a vital position in the anti-cerebral ischemia-reperfusion injury of 20(R)-ginsenoside Rg3, and its neuroprotective mechanism is related to the activation of the nuclear factor erythroid2-related factor 2/heme oxygenase 1 signaling pathway.
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Affiliation(s)
- Deyun Chen
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
- College of Food, Drugs, and Health, Yunnan Vocational and Technical College of Agriculture, Kunming, China
| | - Hengqian Duan
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Cheng Zou
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Renhua Yang
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Xiaochao Zhang
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Yan Sun
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Xingwei Luo
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Di Lv
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Peng Chen
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Zhiqiang Shen
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Bo He
- School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
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Lu YY, Tsai HP, Tsai TH, Miao HC, Zhang ZH, Wu CH. RTA-408 Regulates p-NF-κB/TSLP/STAT5 Signaling to Ameliorate Nociceptive Hypersensitivity in Chronic Constriction Injury Rats. Mol Neurobiol 2024; 61:1714-1725. [PMID: 37773082 DOI: 10.1007/s12035-023-03660-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/15/2023] [Indexed: 09/30/2023]
Abstract
Neuropathic pain following nerve injury is a complex condition, which often puts a negative impact on life and remains a sustained problem. To make pain management better is of great significance and unmet need. RTA 408 (Omaveloxone) is a traditional Asian medicine with a valid anti-inflammatory property. Thus, we aim to investigate the therapeutic effect of RTA-408 on mechanical allodynia in chronic constriction injury (CCI) rats as well as the underlying mechanisms. Neuropathic pain was induced by using CCI of the rats' sciatic nerve (SN) and the behavior testing was measured by calibrated forceps testing. Activation of Nrf-2, the phosphorylation of nuclear factor-κB (NF-κB), and the inflammatory response were assessed by western blots. The number of apoptotic neurons and degree of glial cell reaction were examined by immunofluorescence assay. RTA-408 exerts an analgesic effect on CCI rats. RTA-408 reduces neuronal apoptosis and glial cell activation by increasing Nrf-2 expression and decreasing the inflammatory response (TNF-α/ p-NF-κB/ TSLP/ STAT5). These data suggest that RTA-408 is a candidate with potential to reduce nociceptive hypersensitivity after CCI by targeting TSLP/STAT5 signaling.
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Affiliation(s)
- Ying-Yi Lu
- Department of Dermatology, Kaohsiung Veterans General Hospital, Kaohsiung, 813, Taiwan
- Department of Post-Baccalaureate Medicine, School of Medicine, College of Medicine, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
- Shu-Zen Junior College of Medicine and Management, Kaohsiung, 821, Taiwan
| | - Hung-Pei Tsai
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
| | - Tai-Hsin Tsai
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Hsiao-Chien Miao
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Zi-Hao Zhang
- Department of Neurosurgery, Xinle City Hospital, Xinle, Hebei, 050700, People's Republic of China
| | - Chieh-Hsin Wu
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
- Center for Big Data Research, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.
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7
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Khassafi N, Azami Tameh A, Mirzaei H, Rafat A, Barati S, Khassafi N, Vahidinia Z. Crosstalk between Nrf2 signaling pathway and inflammation in ischemic stroke: Mechanisms of action and therapeutic implications. Exp Neurol 2024; 373:114655. [PMID: 38110142 DOI: 10.1016/j.expneurol.2023.114655] [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: 09/14/2023] [Revised: 12/03/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023]
Abstract
One of the major causes of long-term disability and mortality is ischemic stroke that enjoys limited treatment approaches. On the one hand, oxidative stress, induced by excessive generation of reactive oxygen species (ROS), plays a critical role in post-stroke inflammatory response. Increased ROS generation is one of the basic factors in the progression of stroke-induced neuroinflammation. Moreover, intravenous (IV) thrombolysis using recombinant tissue plasminogen activator (rtPA) as the only medication approved for patients with acute ischemic stroke who suffer from some clinical restrictions it could not cover the complicated episodes that happen after stroke. Thus, identifying novel therapeutic targets is crucial for successful preparation of new medicines. Recent evidence indicates that the transcription factor Nuclear factor erythroid 2-related factor 2 (Nrf2) contributes significantly to regulating the antioxidant production in cytosol, which causes antiinflammatory effects on neurons. New findings have shown a relationship between activation of the Nrf2 and glial cells, nuclear factor kappa B (NF-κB) pathway, the nucleotide-binding domain (NOD)-like receptor family pyrin domain containing 3 (NLRP3) inflammasome signaling, and expression of inflammatory markers, suggesting induction of Nrf2 activation can represent a promising therapeutic alternative as the modulators of Nrf2 dependent pathways for targeting inflammatory responses in neural tissue. Hence, this review addresses the relationship of Nrf2 signaling with inflammation and Nrf2 activators' potential as therapeutic agents. This review helps to improve required knowledge for focused therapy and the creation of modern and improved treatment choices for patients with ischemic stroke.
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Affiliation(s)
- Negar Khassafi
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Abolfazl Azami Tameh
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Ali Rafat
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Shirin Barati
- Department of Anatomy, Saveh University of Medical Sciences, Saveh, Iran
| | - Negin Khassafi
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Zeinab Vahidinia
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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8
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Lal R, Dharavath RN, Chopra K. Nrf2 Signaling Pathway: a Potential Therapeutic Target in Combating Oxidative Stress and Neurotoxicity in Chemotherapy-Induced Cognitive Impairment. Mol Neurobiol 2024; 61:593-608. [PMID: 37644279 DOI: 10.1007/s12035-023-03559-6] [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: 12/21/2022] [Accepted: 08/05/2023] [Indexed: 08/31/2023]
Abstract
Chemotherapy-induced cognitive impairment (CICI) is one of the major adverse effects of antineoplastic drugs, which decrease the quality of life in cancer survivors. Extensive experimental and clinical research suggests that chemotherapeutic drugs generate an enormous amount of reactive oxygen species (ROS), contributing to oxidative stress, neuroinflammation, blood-brain barrier (BBB) disruption, and neuronal death, eventually leading to CICI. Despite the progress in exploring different pathological mechanisms of CICI, effective treatment to prevent CICI progression has not been developed yet. Nrf2 is the principal transcription factor that regulates cellular redox balance and inflammation-related gene expression. Emerging evidence suggests that upregulation of Nrf2 and its target genes could suppress oxidative stress, and neuroinflammation, restore BBB integrity, and increase neurogenesis. This review discusses the role of Nrf2 in CICI, how it responds to oxidative stress, inflammation, neurotoxicity, and potential Nrf2 activators that could be used to enhance Nrf2 activation in CICI.
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Affiliation(s)
- Roshan Lal
- Pharmacology Division, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh, 160014, India
| | - Ravinder Naik Dharavath
- Pharmacology Division, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh, 160014, India
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, M5T 1R8, Canada
| | - Kanwaljit Chopra
- Pharmacology Division, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh, 160014, India.
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9
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Miron RJ, Estrin NE, Sculean A, Zhang Y. Understanding exosomes: Part 2-Emerging leaders in regenerative medicine. Periodontol 2000 2024; 94:257-414. [PMID: 38591622 DOI: 10.1111/prd.12561] [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: 02/04/2024] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 04/10/2024]
Abstract
Exosomes are the smallest subset of extracellular signaling vesicles secreted by most cells with the ability to communicate with other tissues and cell types over long distances. Their use in regenerative medicine has gained tremendous momentum recently due to their ability to be utilized as therapeutic options for a wide array of diseases/conditions. Over 5000 publications are currently being published yearly on this topic, and this number is only expected to dramatically increase as novel therapeutic strategies continue to be developed. Today exosomes have been applied in numerous contexts including neurodegenerative disorders (Alzheimer's disease, central nervous system, depression, multiple sclerosis, Parkinson's disease, post-traumatic stress disorders, traumatic brain injury, peripheral nerve injury), damaged organs (heart, kidney, liver, stroke, myocardial infarctions, myocardial infarctions, ovaries), degenerative processes (atherosclerosis, diabetes, hematology disorders, musculoskeletal degeneration, osteoradionecrosis, respiratory disease), infectious diseases (COVID-19, hepatitis), regenerative procedures (antiaging, bone regeneration, cartilage/joint regeneration, osteoarthritis, cutaneous wounds, dental regeneration, dermatology/skin regeneration, erectile dysfunction, hair regrowth, intervertebral disc repair, spinal cord injury, vascular regeneration), and cancer therapy (breast, colorectal, gastric cancer and osteosarcomas), immune function (allergy, autoimmune disorders, immune regulation, inflammatory diseases, lupus, rheumatoid arthritis). This scoping review is a first of its kind aimed at summarizing the extensive regenerative potential of exosomes over a broad range of diseases and disorders.
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Affiliation(s)
- Richard J Miron
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Nathan E Estrin
- Advanced PRF Education, Venice, Florida, USA
- School of Dental Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
| | - Anton Sculean
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Yufeng Zhang
- Department of Oral Implantology, University of Wuhan, Wuhan, China
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Wang G, Li Z, Lin P, Zhang H, Wang Y, Zhang T, Wang H, Li H, Lin L, Zhao Y, Jia L, Chen Y, Ji H, Zhao W, Fu Z, Zhong Z. Knockdown of Smox protects the integrity of the blood-brain barrier through antioxidant effect and Nrf2 pathway activation in stroke. Int Immunopharmacol 2024; 126:111183. [PMID: 37984250 DOI: 10.1016/j.intimp.2023.111183] [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: 07/14/2023] [Revised: 10/23/2023] [Accepted: 11/01/2023] [Indexed: 11/22/2023]
Abstract
Once an ischemic stroke occurs, reactive oxygen species (ROS) and oxidative stress degrade the tight connections between cerebral endothelial cells resulting in their damage. The expression of antioxidant genes may be enhanced, and ROS formation may be reduced following Nrf2 activation, which is associated with protection against ischemic stroke. Overexpression of spermine oxidase (Smox) in the neocortex led to increased H2O2 production. However, how Smox impacts the regulation of the blood-brain barrier (BBB) through antioxidants has not been examined yet. We conducted experiments both in the cell level and in the transient middle cerebral artery occlusion (tMCAO) model to evaluate the effect of Smox siRNA lentivirus (si-Smox) knockdown on BBB protection against ischemic stroke. Mice treated with si-Smox showed remarkably decreased BBB breakdown and reduced endothelial inflammation following stroke. The treatment with si-Smox significantly elevated the Bcl-2 to Bax ratio and decreased the production of cleaved caspase-3 in the tMCAO model. Further investigation revealed that the neuroprotective effect was the result of the antioxidant properties of si-Smox, which reduced oxidative stress and enhanced CD31+ cells in the peri-infarct cortical areas. Of significance, si-Smox activated Nrf2 in both bEnd.3 cells and tMCAO animals, and blocking Nrf2 with brusatol diminished the protective effects of si-Smox. The study findings suggest that si-Smox exerts neuroprotective effects and promotes angiogenesis by activating the Nrf2 pathway, thus decreasing oxidative stress and apoptosis caused by tMCAO. As a result, si-Smox may hold potential as a therapeutic candidate for preserving BBB integrity while treating ischemic stroke.
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Affiliation(s)
- Guangtian Wang
- Teaching Center of Pathogenic Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Zhihui Li
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Peng Lin
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Huishu Zhang
- Teaching Center of Biotechnology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Yanyan Wang
- Teaching Center of Morphology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Tongshuai Zhang
- Department of Neurobiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Hui Wang
- Teaching Center of Pathogenic Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Heming Li
- Teaching Center of Pathogenic Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Lexun Lin
- Teaching Center of Pathogenic Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Yuehui Zhao
- Teaching Center of Pathogenic Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Lina Jia
- Teaching Center of Pathogenic Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Yang Chen
- Teaching Center of Pathogenic Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Hong Ji
- Teaching Center of Pathogenic Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Wenran Zhao
- Department of Cell Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Zhongqiu Fu
- Department of Neonatology, Zhuhai Women and Children's Hospital, Zhuhai, Guangdong 519000, China.
| | - Zhaohua Zhong
- Teaching Center of Pathogenic Biology, School of Basic Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, China.
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11
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Medoro A, Davinelli S, Milella L, Willcox BJ, Allsopp RC, Scapagnini G, Willcox DC. Dietary Astaxanthin: A Promising Antioxidant and Anti-Inflammatory Agent for Brain Aging and Adult Neurogenesis. Mar Drugs 2023; 21:643. [PMID: 38132964 PMCID: PMC10744637 DOI: 10.3390/md21120643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
Decreased adult neurogenesis, or the gradual depletion of neural stem cells in adult neurogenic niches, is considered a hallmark of brain aging. This review provides a comprehensive overview of the intricate relationship between aging, adult neurogenesis, and the potential neuroregenerative properties of astaxanthin, a carotenoid principally extracted from the microalga Haematococcus pluvialis. The unique chemical structure of astaxanthin enables it to cross the blood-brain barrier and easily reach the brain, where it may positively influence adult neurogenesis. Astaxanthin can affect molecular pathways involved in the homeostasis, through the activation of FOXO3-related genetic pathways, growth, and regeneration of adult brain neurons, enhancing cell proliferation and the potency of stem cells in neural progenitor cells. Furthermore, astaxanthin appears to modulate neuroinflammation by suppressing the NF-κB pathway, reducing the production of pro-inflammatory cytokines, and limiting neuroinflammation associated with aging and chronic microglial activation. By modulating these pathways, along with its potent antioxidant properties, astaxanthin may contribute to the restoration of a healthy neurogenic microenvironment, thereby preserving the activity of neurogenic niches during both normal and pathological aging.
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Affiliation(s)
- Alessandro Medoro
- Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, 86100 Campobasso, Italy; (A.M.); (S.D.)
| | - Sergio Davinelli
- Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, 86100 Campobasso, Italy; (A.M.); (S.D.)
| | - Luigi Milella
- Department of Science, University of Basilicata, V. le Ateneo Lucano 10, 85100 Potenza, Italy;
| | - Bradley J. Willcox
- Center of Biomedical Research Excellence for Translational Research on Aging, Kuakini Medical Center, Honolulu, HI 96817, USA; (B.J.W.); (R.C.A.); (D.C.W.)
- Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96822, USA
| | - Richard C. Allsopp
- Center of Biomedical Research Excellence for Translational Research on Aging, Kuakini Medical Center, Honolulu, HI 96817, USA; (B.J.W.); (R.C.A.); (D.C.W.)
- Institute for Biogenesis Research, University of Hawaii, Honolulu, HI 96822, USA
| | - Giovanni Scapagnini
- Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, 86100 Campobasso, Italy; (A.M.); (S.D.)
| | - Donald Craig Willcox
- Center of Biomedical Research Excellence for Translational Research on Aging, Kuakini Medical Center, Honolulu, HI 96817, USA; (B.J.W.); (R.C.A.); (D.C.W.)
- Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96822, USA
- Department of Human Welfare, Okinawa International University, Ginowan 901-2211, Japan
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12
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Zamanian MY, Soltani A, Khodarahmi Z, Alameri AA, Alwan AMR, Ramírez-Coronel AA, Obaid RF, Abosaooda M, Heidari M, Golmohammadi M, Anoush M. Targeting Nrf2 signaling pathway by quercetin in the prevention and treatment of neurological disorders: An overview and update on new developments. Fundam Clin Pharmacol 2023; 37:1050-1064. [PMID: 37259891 DOI: 10.1111/fcp.12926] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 04/16/2023] [Accepted: 05/26/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Neurological disorders (NLDs) are widely acknowledged as a significant public health concern worldwide. Stroke, Alzheimer's disease (AD), and traumatic brain injury (TBI) are three of these disorders that have sparked major study attention. Neurological dysfunction, protein buildup, oxidation and neuronal injury, and aberrant mitochondria are all prevalent neuropathological hallmarks of these disorders. The signaling cascade of nuclear factor erythroid 2 related factor 2 (Nrf2) shares all of them as a common target. Several studies have found that overexpression of Nrf2 is a promising treatment method in NLDs. Effective treatment of these disorders continues to be a universal concern regardless of various medicines. In order to treat a variety of neurological problems, organic remedies may provide an alternative treatment. It has been demonstrated that polyphenols like quercetin (Que) offer considerable capabilities for treating NLDs. One of Que's greatest key targets, Nrf2, has the capacity to control the production of a number of cytoprotective enzymes that exhibit neuroprotective, detoxifying, and antioxidative effects. Additionally, Que enhanced the expression of Nrf2 and inhibited alterations in the shape and death of neurons in the hippocampus. OBJECTIVE In this review, we have focused on Que's medicinal prospects as a neuroprotective drug. METHODS PubMed, Scopus, Science Direct, and Google Scholar were used to search articles for this study. RESULTS The findings of this research demonstrate that (1) Que protected the blood-brain barrier via stimulating Nrf2 in animal stroke, which alleviated ischemic reperfusion and motor dysfunction. (2) By triggering the Nrf2 pathway, Que reduced the neuroinflammation and oxidative damage brought on by TBI in the cortex. (3) In an experimental model of AD, Que enhanced cognitive function by decreasing A1-4, antioxidant activity, and Nrf2 levels in the brain. CONCLUSION We discuss recent research on Que-mediated Nrf2 expression in the management of several NLDs in this paper.
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Affiliation(s)
- Mohammad Yasin Zamanian
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Afsaneh Soltani
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Khodarahmi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Athemar M R Alwan
- Department of Radiological Techniques, Al-Mustaqbal University College, Babylon, Iraq
| | - Andrés Alexis Ramírez-Coronel
- Azogues Campus Nursing Career, Health and Behavior Research Group (HBR), Psychometry and Ethology Laboratory, Catholic University of Cuenca, Cuenca, Ecuador
- Doctorate in Psychology, University of Palermo, Buenos Aires, Argentina
- Epidemiology and Biostatistics Research Group, CES University, Medellín, Colombia
| | | | - Munther Abosaooda
- Epidemiology and Biostatistics Research Group, CES University, Medellín, Colombia
| | - Mahsa Heidari
- Department of Biochemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Maryam Golmohammadi
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdieh Anoush
- Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
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13
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Xie X, Wang F, Ge W, Meng X, Fan L, Zhang W, Wang Z, Ding M, Gu S, Xing X, Sun X. Scutellarin attenuates oxidative stress and neuroinflammation in cerebral ischemia/reperfusion injury through PI3K/Akt-mediated Nrf2 signaling pathways. Eur J Pharmacol 2023; 957:175979. [PMID: 37611841 DOI: 10.1016/j.ejphar.2023.175979] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 07/23/2023] [Accepted: 08/08/2023] [Indexed: 08/25/2023]
Abstract
Cerebral ischemia/reperfusion injury (CIRI) seriously threatens human life and health. Scutellarin (Scu) exhibits neuroprotective effects, but little is known about its underlying mechanism. Therefore, we explored its protective effect on CIRI and the underlying mechanism. Our results demonstrated that Scu rescued HT22 cells from cytotoxicity induced by oxygen and glucose deprivation/reoxygenation (OGD/R). Scu also showed antioxidant activity by promoting nuclear factor erythroid 2-related factor 2 (Nrf2) nuclear translocation, upregulating heme oxygenase-1 (HO-1) expression, increasing superoxide dismutase (SOD) activity, and inhibiting reactive oxygen species (ROS) generation in vitro. Additionally, Scu reduced nuclear factor-kappa B (NF-κB) activity and the levels of pro-inflammatory factors. Interestingly, these effects were abolished by Nrf2 inhibition. Furthermore, Scu reduced infarct volume and blood-brain barrier (BBB) permeability, improved sensorimotor functions and depressive behaviors, and alleviated oxidative stress and neuroinflammation in rats subjected to middle cerebral artery occlusion/reperfusion (MCAO/R). Mechanistically, Scu-induced Nrf2 nuclear accumulation and inactivation of NF-κB were accompanied by an enhanced level of phosphorylated protein kinase B (p-AKT) both in vitro and in vivo. Pharmacologically inhibiting the phosphatidylinositol-3-kinase/protein kinase B (PI3K/AKT) pathway blocked Scu-induced Nrf2 nuclear translocation and inactivation of NF-κB, as well as its antioxidant and anti-inflammatory activities. In summary, these results suggest that Scu exhibits antioxidant, anti-inflammatory, and neuroprotective effects in CIRI through Nrf2 activation mediated by the PI3K/Akt pathway.
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Affiliation(s)
- Xueheng Xie
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China
| | - Fan Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China
| | - Wenxiu Ge
- Research Center on Life Sciences and Environmental Sciences, Harbin University of Commerce, Harbin, 150076, China
| | - Xiangbao Meng
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China
| | - Lijuan Fan
- Kunming Longjin Pharmaceutical Co., Ltd, Kunming, 650503, China
| | - Wei Zhang
- Kunming Longjin Pharmaceutical Co., Ltd, Kunming, 650503, China
| | - Zhen Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China
| | - Meng Ding
- Guizhou University of Traditional Chinese Medicine, Guizhou, 550025, China
| | - Shengliang Gu
- Guizhou University of Traditional Chinese Medicine, Guizhou, 550025, China
| | - Xiaoyan Xing
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China.
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China.
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14
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Vaghari M, Moghaddam AH, Ranjbar M, Moradikor N. Protective effects of Japanese sake yeast on depressive-like behaviors, oxidative stress and inflammatory parameters in a rat model of global cerebral ischemia/reperfusion. Biochem Biophys Res Commun 2023; 674:97-101. [PMID: 37419037 DOI: 10.1016/j.bbrc.2023.06.084] [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: 05/26/2023] [Revised: 06/11/2023] [Accepted: 06/26/2023] [Indexed: 07/09/2023]
Abstract
Stroke is a serious cerebrovascular disease that causes post-stress depression and death. Stress and inflammation have pivotal roles in the induction of the disease. Several drugs and agents have been used for the treatment of disease, but their uses are faced with limitations owing to their side effects. Natural agents are more efficient for the treatment of stroke due to lower toxicity and their pharmaceutical properties. Sake yeast or Japanese rice wine is an antioxidant compound that could be used to treat stroke and post-stress depression. This study evaluates the effects of sake yeast on depressive-like behaviors, oxidative stress and inflammatory parameters in a rat model of global cerebral ischemia/reperfusion. Rats were divided into four groups, including 1) control: without bilateral common carotid artery occlusion (BCCAO) and sake supplement, 2) Ischemia group: rats induced with BCCAO and lack of therapeutic supplement, and 3 and 4) Ischemia + sake groups: rats induced with BCCAO and treated with 25 and 50 mg/kg sake yeast, respectively. Depressive-like behaviors antioxidant enzymes activities were assessed. The induction of stroke increased oxidant status, inflammatory parameters, and depressive-like behaviors, while the administration of sake could decrease inflammation, depressive-like behaviors, and oxidant status and increase antioxidant enzymes. The yeast could be used as a supplement in combination with other drugs to treat stroke.
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Affiliation(s)
- Maryam Vaghari
- Department of Animal Sciences, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | | | - Mojtaba Ranjbar
- Faculty of Biotechnology, Amol University of Special Modern Technologies, Amol, Iran
| | - Nasrollah Moradikor
- International Center for Neuroscience Research, Institute for Intelligent Research, Tbilisi, Georgia.
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15
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Jin T, Leng B. Cynaropicrin Averts the Oxidative Stress and Neuroinflammation in Ischemic/Reperfusion Injury Through the Modulation of NF-kB. Appl Biochem Biotechnol 2023; 195:5424-5438. [PMID: 35838888 PMCID: PMC10457408 DOI: 10.1007/s12010-022-04060-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2022] [Indexed: 11/02/2022]
Abstract
Cerebral ischemia and successive reperfusion are the prevailing cause of cerebral stroke. Currently cerebral stroke is considered to be one of the prior causes for high mortality, disability, and morbidity. Cynaropicrin, a sesquiterpene lactone, exhibits various pharmacologic properties and also has an anti-inflammatory property associated with the suppression of the key pro-inflammatory NF-κB pathway. The protective effect of cynaropicrin against oxidative stress and neuroinflammation during CIR injury through the modulation of NF-κB pathway was studied in the current investigation. The experimental rats split into 5 groups as sham-operated control group (group 1), middle cerebral artery occlusion (MCAO)-induced rats (group 2), MCAO rats treated with cynaropicrin (diluted in saline) immediately 2 h after MCAO with 5, 10, and 25 mg/kg administration orally were designated as groups 3, 4, and 5, respectively. In MCAO-induced animals, the severity of ischemic was evident by the elevated level nitrate, MDA, MMPs, inflammatory mediators, Bax, caspase-3, and NF-κB. The level of Nrf-2, antioxidant enzymes, Bcl-2, and IL-10 was reduced in the MCAO-induced animals. Treatment with cynaropicrin in dosage-based manner increased the level of antioxidant enzymes, IL-10, Nrf-2, and Bcl-2 in the animals which indicates the antioxidative effect of cynaropicrin. The level of nitrate, MDA, MMPs, proinflammatory cytokines, inflammatory mediators, Bax, caspase-3, and NF-κB was reduced in the rats treated with cynaropicrin in a dosage-based manner. Experimental animals treated with cynaropicrin in a dosage-dependent way showed a defensive mechanism against oxidative stress and neuroinflammation by inhibiting the NF-κB pathway.
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Affiliation(s)
- Tao Jin
- Department of Interventional and Vascular Surgery, Affiliated Tenth People's Hospital of Tongji University, Shanghai, China
- Department of Neurosurgery, Affiliated Huashan Hospital of Fudan University, No. 12, Wulumuqi Middle Road, Shanghai, 200040, China
| | - Bing Leng
- Department of Neurosurgery, Affiliated Huashan Hospital of Fudan University, No. 12, Wulumuqi Middle Road, Shanghai, 200040, China.
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16
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Liu Y, Wang L, Yang G, Chi X, Liang X, Zhang Y. Sirtuins: Promising Therapeutic Targets to Treat Ischemic Stroke. Biomolecules 2023; 13:1210. [PMID: 37627275 PMCID: PMC10452362 DOI: 10.3390/biom13081210] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/27/2023] Open
Abstract
Stroke is a major cause of mortality and disability globally, with ischemic stroke (IS) accounting for over 80% of all stroke cases. The pathological process of IS involves numerous signal molecules, among which are the highly conserved nicotinamide adenine dinucleotide (NAD+)-dependent enzymes known as sirtuins (SIRTs). SIRTs modulate various biological processes, including cell differentiation, energy metabolism, DNA repair, inflammation, and oxidative stress. Importantly, several studies have reported a correlation between SIRTs and IS. This review introduces the general aspects of SIRTs, including their distribution, subcellular location, enzyme activity, and substrate. We also discuss their regulatory roles and potential mechanisms in IS. Finally, we describe the current therapeutic methods based on SIRTs, such as pharmacotherapy, non-pharmacological therapeutic/rehabilitative interventions, epigenetic regulators, potential molecules, and stem cell-derived exosome therapy. The data collected in this study will potentially contribute to both clinical and fundamental research on SIRTs, geared towards developing effective therapeutic candidates for future treatment of IS.
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Affiliation(s)
- Yue Liu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
| | - Liuding Wang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
| | - Guang Yang
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China;
| | - Xiansu Chi
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
| | - Xiao Liang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
| | - Yunling Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
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17
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Zhang Q, Yao M, Qi J, Song R, Wang L, Li J, Zhou X, Chang D, Huang Q, Li L, Wang N. Puerarin inhibited oxidative stress and alleviated cerebral ischemia-reperfusion injury through PI3K/Akt/Nrf2 signaling pathway. Front Pharmacol 2023; 14:1134380. [PMID: 37284311 PMCID: PMC10240043 DOI: 10.3389/fphar.2023.1134380] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 05/09/2023] [Indexed: 06/08/2023] Open
Abstract
Introduction: Puerarin (PUE) is a natural compound isolated from Puerariae Lobatae Radix, which has a neuroprotective effect on IS. We explored the therapeutic effect and underlying mechanism of PUE on cerebral I/R injury by inhibiting oxidative stress related to the PI3K/Akt/Nrf2 pathway in vitro and in vivo. Methods: The middle cerebral artery occlusion and reperfusion (MCAO/R) rats and oxygen-glucose deprivation and reperfusion (OGD/R) were selected as the models, respectively. The therapeutic effect of PUE was observed using triphenyl tetrazolium and hematoxylin-eosin staining. Tunel-NeuN staining and Nissl staining to quantify hippocampal apoptosis. The reactive oxygen species (ROS) level was detected by flow cytometry and immunofluorescence. Biochemical method to detect oxidative stress levels. The protein expression related to PI3K/Akt/Nrf2 pathway was detected by using Western blotting. Finally, co-immunoprecipitation was used to study the molecular interaction between Keap1 and Nrf2. Results: In vivo and vitro studies showed that PUE improved neurological deficits in rats, as well as decreased oxidative stress. Immunofluorescence and flow cytometry indicated that the release of ROS can be inhibited by PUE. In addition, the Western blotting results showed that PUE promoted the phosphorylation of PI3K and Akt, and enabled Nrf2 to enter the nucleus, which further activated the expression of downstream antioxidant enzymes such as HO-1. The combination of PUE with PI3K inhibitor LY294002 reversed these results. Finally, co-immunoprecipitation results showed that PUE promoted Nrf2-Keap1 complex dissociation. Discussion: Taken together, PUE can activate Nrf2 via PI3K/Akt and promote downstream antioxidant enzyme expression, which could further ameliorate oxidative stress, against I/R-induced Neuron injury.
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Affiliation(s)
- Qianqian Zhang
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China
| | - Min Yao
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China
| | - Jiajia Qi
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China
| | - Rui Song
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Lei Wang
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China
| | - Jiacheng Li
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China
| | - Xian Zhou
- National Institute of Complementary Medicine, Western Sydney University, Westmead, NSW, Australia
| | - Dennis Chang
- National Institute of Complementary Medicine, Western Sydney University, Westmead, NSW, Australia
| | - Qi Huang
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Anhui University of Chinese Medicine, Hefei, China
| | - Lili Li
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China
- Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Traditional Chinese Medicine, Hefei, China
| | - Ning Wang
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China
- Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Traditional Chinese Medicine, Hefei, China
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18
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Zeng Y, Xu Y, Pan Y, Guo H. KLF10 knockdown negatively regulates CTRP3 to improve OGD/R-induced brain microvascular endothelial cell injury and barrier dysfunction through Nrf2/HO-1 signaling pathway. Tissue Cell 2023; 82:102106. [PMID: 37210762 DOI: 10.1016/j.tice.2023.102106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/23/2023]
Abstract
Ischemic stroke seriously endangers human health and even death. This study aimed to investigate the role of KLF10/CTRP3 in oxygen-glucose deprivation/reperfusion (OGD/R)-induced brain microvascular endothelial cells injury, as well as the regulatory effects of the Nrf2/HO-1 signaling pathway. OGD/R-induced human microvascular endothelial cells (hBMECs) were used to simulate the model of cerebral ischemia-reperfusion (I/R) injury. The expression of KLF10/CTRP3 in OGD/R-induced hBMECs as well as the transfection efficiency were all detected by RT-qPCR and western blot. The interaction of KLF10 and CTRP3 was confirmed by dual-luciferase reporter assay and chromatin immunoprecipitation (ChIP). The viability, apoptosis and endothelial permeability of OGD/R-induced hBMECs was detected by CCK-8, TUNEL and FITC-Dextran assay kit. The capacity of cell migration was assessed by wound healing assay. The expression of apoptosis related proteins, oxidative stress levels and tight junction proteins was also detected. As a result, the expression of KLF10 was increased in OGD/R-induced hBMECs and downregulation of KLF10 could promote the viability, migration and suppress the apoptosis, oxidative stress and endothelial permeability by downregulating the expression of caspase 3, Bax, cleaved PARP, ROS, MDA, and upregulating the expression of Bcl-2, SOD, GSH-Px, ZO-1, occludin, claudin-5. Nrf2/HO-1 signaling pathway was inhibited in OGD/R-induced hBMECs, which was activated by downregulation of KLF10. KLF10 was demonstrated to be combined with CTRP3 and KLF10 inhibited transcription of CTRP3 in hBMECs. The above changes affected by downregulation of KLF10 could be reversed by the interference with CTRP3. In conclusion, KLF10 knockdown improved OGD/R-induced brain microvascular endothelial cell injury and barrier dysfunction through the activation of Nrf2/HO-1 signaling pathway, which was weakened by the downregulation of CTRP3.
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Affiliation(s)
- Youchao Zeng
- Department of Neurology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi 56300, Guizhou, China.
| | - Yongsu Xu
- Nursing Department, Affiliated Hospital of Zunyi Medical University, Zunyi 56300, Guizhou, China
| | - Yongjie Pan
- Department of Neurology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi 56300, Guizhou, China
| | - Hong Guo
- Department of Neurology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi 56300, Guizhou, China
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19
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Qiao N, An Z, Fu Z, Chen X, Tong Q, Zhang Y, Ren H. Kinsenoside alleviates oxidative stress-induced blood-brain barrier dysfunction via promoting Nrf2/HO-1 pathway in ischemic stroke. Eur J Pharmacol 2023; 949:175717. [PMID: 37054938 DOI: 10.1016/j.ejphar.2023.175717] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 03/23/2023] [Accepted: 04/11/2023] [Indexed: 04/15/2023]
Abstract
An ischemic stroke usually causes blood-brain barrier (BBB) damage and excessive oxidative stress (OS) levels. Kinsenoside (KD), a major effective compound extracted in Chinese herbal medicine Anoectochilus roxburghii (Orchidaceae), has anti-OS effects. The present study focused on exploring KD's protection against OS-mediated cerebral endothelial cell damage and BBB damage within the mouse model. Intracerebroventricular administration of KD upon reperfusion after 1 h ischemia decreased infarct volumes, neurological deficit, brain edema, neuronal loss, and apoptosis 72 h post-ischemic stroke. KD improved BBB structure and function, as evidenced by a lower 18F-fluorodeoxyglucose pass rate of the BBB and upregulation of tight junction (TJ) proteins such as occludin, claudin-5, and zonula occludens-1 (ZO-1). KD protected bEnd.3 endothelial cells from oxygen and glucose deprivation/reoxygenation (OGD/R) injury in an in-vitro study. Meanwhile, OGD/R reduced transepithelial electronic resistance, whereas KD significantly increased TJ protein levels. Furthermore, based on in-vivo and in-vitro research, KD alleviated OS in endothelial cells, which is related to nuclear factor, erythroid 2 like 2 (Nrf2) nuclear translocation as well as Nrf2/haem oxygenase 1 signaling protein stimulation. Our findings demonstrated that KD might serve as a potential compound for treating ischemic stroke involving antioxidant mechanisms.
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Affiliation(s)
- Nan Qiao
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhaohong An
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zeyu Fu
- Department of Anesthesiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Xingyu Chen
- Department of Clinical Laboratory, The Central Hospital of Wuhan, Wuhan, China
| | - Qingyi Tong
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Hong Ren
- Biobank, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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20
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Xu P, Kong L, Tao C, Zhu Y, Cheng J, Li W, Shen N, Li R, Zhang C, Wang L, Zhang Y, Wang G, Liu X, Sun W, Hu W. Elabela-APJ axis attenuates cerebral ischemia/reperfusion injury by inhibiting neuronal ferroptosis. Free Radic Biol Med 2023; 196:171-186. [PMID: 36681202 DOI: 10.1016/j.freeradbiomed.2023.01.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/27/2022] [Accepted: 01/08/2023] [Indexed: 01/20/2023]
Abstract
Ferroptosis is a form of non-apoptotic cell death caused by iron-dependent peroxidation of lipids. It contributes to ischemic stroke-induced neuronal damage. Elabela (ELA), a novel endogenous ligand for Apelin receptor (APJ), regulates oxidative stress and exerts a protective role in cardiovascular disease. However, the effect of ELA-APJ axis on cellular ferroptosis in cerebral ischemia/reperfusion (I/R) remains elusive. The present study showed that ELA and APJ were expressed on neurons and increased after cerebral I/R injury. The I/R insult triggered typical molecular and morphological features of neuronal ferroptosis, including iron and MDA accumulation, mitochondrial shrink and membrane rupture, upregulation of positive ferroptosis regulators and downregulation of negative regulators. ELA-32 treatment reduced brain infarction and ameliorated neurobehavioral deficits and cognitive dysfunction. Moreover, ELA-32 administration alleviated neuronal ferroptosis, accompanied by reduced iron deposition, decreased mitochondrial damage, relived lipid peroxidation and glutathione reduction. Such effects of ELA-32 were abolished by AAV-APJ-RNAi or nuclear factor erythroid 2-related factor 2 (NRF2) inhibitor ML385. Mechanistically, ELA was shown to bind to APJ and activate NRF2/ARE anti-oxidative signaling pathway via Gα13. Together, these findings suggested that ELA-APJ axis mitigates neuronal ferroptosis after ischemic stroke and that the ELA-32 peptide may be a putative therapeutic avenue for ischemic stroke.
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Affiliation(s)
- Pengfei Xu
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Lingqi Kong
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Chunrong Tao
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Yuyou Zhu
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Juan Cheng
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Wenyu Li
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Nan Shen
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Rui Li
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Chao Zhang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Li Wang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Yan Zhang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Guoping Wang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Xinfeng Liu
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China.
| | - Wen Sun
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China.
| | - Wei Hu
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China.
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21
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Lv J, Xu S, Meng C, Wang Y, Ji L, Li X, Wang X, Li Q. Ferroptosis participated in hippocampal neuroinflammation damage of in offspring rats after maternal sleep deprivation. J Neuroimmunol 2023; 375:578021. [PMID: 36681050 DOI: 10.1016/j.jneuroim.2023.578021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/08/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
Sleep deprivation during pregnancy has important effects on the pregnant woman herself and her offspring, and some studies have found that neuroinflammation in her offspring is important, but the mechanisms are poorly understood. To investigate the involvement of ferroptosis in cognitive impairment due to hippocampal neuroinflammation in offspring rats after maternal sleep deprivation. SD rats exposed to late gestational sleep deprivation were deprived of sleep for 72 h. Their offspring were given the ferroptosis inhibitor liproxstatin-1 (5 mg/kg) intraperitoneally 3 days after birth. The results showed that MSD resulted in impaired learning memory capacity and significant downregulation of PSD95 and NeuN. Microglia were significantly activated, inflammatory factor expression was increased, the ferroptosis regulatory protein GPX4 was downregulated, ACSL4 was significantly upregulated, and lipid metabolite 4-HNE expression was increased. In contrast, the MSD-induced impairment of inflammation and learning memory capacity in the offspring was ameliorated after treatment with ferroptosis inhibitors. These results suggest that MSD-induced neural damage characterized ferroptosis in the hippocampal region of the offspring rats, leading to a decrease in learning and memory function, which may be related to the decreased levels of Nrf2 and HO-1.
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Affiliation(s)
- Jing Lv
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, China; Institute of Anesthesiology, Hubei University of Medicine, Shiyan 442000, Hubei, China.
| | - Siyuan Xu
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, China; Department of Anesthesiology, Fushun Mining Bureau General Hospital of Liaoning Health Industry Group, Fushun 113008, Liaoning, China
| | - Chen Meng
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, China; Institute of Anesthesiology, Hubei University of Medicine, Shiyan 442000, Hubei, China
| | - Yu Wang
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, China; Institute of Anesthesiology, Hubei University of Medicine, Shiyan 442000, Hubei, China
| | - Liu Ji
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, China; Institute of Anesthesiology, Hubei University of Medicine, Shiyan 442000, Hubei, China
| | - Xiaoyan Li
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, China; Institute of Anesthesiology, Hubei University of Medicine, Shiyan 442000, Hubei, China
| | - Xianyu Wang
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, China; Institute of Anesthesiology, Hubei University of Medicine, Shiyan 442000, Hubei, China
| | - Qing Li
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, China; Institute of Anesthesiology, Hubei University of Medicine, Shiyan 442000, Hubei, China.
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22
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Wan H, Cai Y, Xiao L, Ling Y, Ge L, Mo S, Xie Q, Peng S, Zhou B, Zeng X, Chen X. JFD, a Novel Natural Inhibitor of Keap1 Alkylation, Suppresses Intracellular Mycobacterium Tuberculosis Growth through Keap1/Nrf2/SOD2-Mediated ROS Accumulation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:6726654. [PMID: 36819778 PMCID: PMC9937762 DOI: 10.1155/2023/6726654] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 08/16/2022] [Accepted: 10/14/2022] [Indexed: 02/12/2023]
Abstract
It is an effective strategy to treat tuberculosis by enhancing reactive oxygen species- (ROS-) mediated killing of Mycobacterium tuberculosis in macrophages, but there are no current therapeutic agents targeting this pathway. Honeysuckle has been used as the traditional medicine for tuberculosis treatment for 1500 years. Japoflavone D (JFD) is a novel biflavonoid isolated from Honeysuckle promoting ROS accumulation by Nrf2 pathway in hepatocarcinoma cells. However, its activity to kill M. tuberculosis in macrophages and molecular mechanism has not been reported. Our results showed that JFD enhances the M. tuberculosis elimination by boosting ROS levels in THP-1 cells. Moreover, the massive ROS accumulation activates p38 to induce apoptosis. Notably, the mechanism revealed that JFD suppresses the nuclear transport of Nrf2, thereby inhibiting SOD2 transcription, leading to a large ROS accumulation. Further studies showed that JFD disrupts the Keap1 alkylation at specific residues Cys14, Cys257, and Cys319, which is crucial for Nrf2 activation, thereby interrupts the nuclear transport of Nrf2. In pharmacokinetic study, JFD can stay as the prototype for 24 h in mice and can be excreted in feces without any toxicity. Our data reveal for the first time that a novel biflavonoid JFD as a potent inhibitor of Keap1 alkylation can suppress the nuclear transport of Nrf2. And it is the first research of the inhibitor of Keap1 alkylation. Furthermore, JFD robustly promotes M. tuberculosis elimination from macrophages by inhibiting Keap1/Nrf2/SOD2 pathway, resulting in the ROS accumulation. This work identified Keap1 alkylation as a new drug target for tuberculosis and provides a preliminary basis for the development of antituberculosis lead compounds based on JFD.
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Affiliation(s)
- Haoqiang Wan
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020 Guangdong Province, China
- Department of Pathology (Longhua Branch), Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, 518020 Guangdong Province, China
| | - Yi Cai
- Guangdong Key Laboratory of Regional Immunity and Diseases, Department of Pathogen Biology, Shenzhen University School of Medicine, Shenzhen, 518120 Guangdong Province, China
| | - Lingyun Xiao
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020 Guangdong Province, China
| | - Yunzhi Ling
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020 Guangdong Province, China
| | - Lanlan Ge
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020 Guangdong Province, China
- Department of Pathology (Longhua Branch), Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, 518020 Guangdong Province, China
| | - Siwei Mo
- Guangdong Key Laboratory of Regional Immunity and Diseases, Department of Pathogen Biology, Shenzhen University School of Medicine, Shenzhen, 518120 Guangdong Province, China
| | - Qiujie Xie
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020 Guangdong Province, China
| | - Shusong Peng
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020 Guangdong Province, China
| | - Boping Zhou
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020 Guangdong Province, China
| | - Xiaobin Zeng
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020 Guangdong Province, China
- Department of Pathology (Longhua Branch), Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, 518020 Guangdong Province, China
- Guangdong Key Laboratory of Regional Immunity and Diseases, Department of Pathogen Biology, Shenzhen University School of Medicine, Shenzhen, 518120 Guangdong Province, China
| | - Xinchun Chen
- Guangdong Key Laboratory of Regional Immunity and Diseases, Department of Pathogen Biology, Shenzhen University School of Medicine, Shenzhen, 518120 Guangdong Province, China
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23
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Zhang Y, Jiang W, Sun W, Guo W, Xia B, Shen X, Fu M, Wan T, Yuan M. Neuroprotective Roles of Apelin-13 in Neurological Diseases. Neurochem Res 2023; 48:1648-1662. [PMID: 36745269 DOI: 10.1007/s11064-023-03869-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 12/24/2022] [Accepted: 01/21/2023] [Indexed: 02/07/2023]
Abstract
Apelin is a natural ligand for the G protein-coupled receptor APJ, and the apelin/APJ system is widely distributed in vivo. Among the apelin family, apelin-13 is the major apelin isoform in the central nervous system and cardiovascular system, and is involved in the regulation of various physiopathological mechanisms such as apoptosis, neuroinflammation, angiogenesis, and oxidative stress. Apelin is currently being extensively studied in the nervous system, and apelin-13 has been shown to be associated with the onset and progression of a variety of neurological disorders, including stroke, neurodegenerative diseases, epilepsy, spinal cord injury (SCI), and psychiatric diseases. This study summarizes the pathophysiological roles of apelin-13 in the development and progression of neurological related diseases.
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Affiliation(s)
- Yang Zhang
- Department of Neurology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Weiwei Jiang
- Hengyang Medical College, University of South China, Hengyang, 421001, Hunan, China
| | - Wenjie Sun
- Department of Neurology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Weiming Guo
- Department of Sports Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Beibei Xia
- Hengyang Medical College, University of South China, Hengyang, 421001, Hunan, China
| | - Xiangru Shen
- Hengyang Medical College, University of South China, Hengyang, 421001, Hunan, China
| | - Mingyuan Fu
- Hengyang Medical College, University of South China, Hengyang, 421001, Hunan, China
| | - Teng Wan
- Department of Neurology, Huazhong University of Science and Technology Union Shenzhen Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518060, China. .,Hengyang Medical College, University of South China, Hengyang, 421001, Hunan, China.
| | - Mei Yuan
- Department of Neurology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China.
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Wang Z, Li Y, Ye Y, Zhu H, Zhang J, Wang H, Lei J, Gu L, Zhan L. NLRP3 inflammasome deficiency attenuates cerebral ischemia-reperfusion injury by inhibiting ferroptosis. Brain Res Bull 2023; 193:37-46. [PMID: 36435361 DOI: 10.1016/j.brainresbull.2022.11.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 11/11/2022] [Accepted: 11/20/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND The role of ferroptosis in ischemic stroke has been hotly debated recently, but the mechanism is not clearly clarified. It has been reported that the NLRP3 inflammasome is essential for the progression of ischemic stroke. Whether the ferroptosis after ischemic stroke mediated by the activation of NLRP3 inflammasome is still not reported. In this study, we investigated the effect of NLRP3 deficiency on ferroptosis following cerebral ischemia-reperfusion injury (CIRI) in vivo and in vitro. MATERIALS In vivo, we used C57BL/6J mice and NLRP3-/- mice to establish a model of middle cerebral artery occlusion (MCAO). After 3 days of reperfusion, we assessed neurological function and then performed TTC staining to measure the infarct volume. Besides, we measured the expression of NLRP3 inflammasome-related proteins and the ferroptosis-inhibiting protein glutathione peroxidase 4 (GPX4) by western blotting (WB) and immunofluorescence (IF). Moreover, we evaluated the levels of ferroptosis-related factors (Fe2+, MDA and GSH) in the infarct area by using appropriate kits. Furthermore, we used WB to measure the expression of Kelch-like epichlorohydrin-associated protein 1 (Keap1) and nuclear factor erythroid 2-related factor 2 (Nrf2), which participate in the progression of ischemic stroke. In vitro, we knocked down NLRP3 with small interfering RNAs (siRNAs) and established an oxygen glucose deprivation/Reperfusion (OGD/R) model in BV2 cells to simulate ischemic conditions. Next, we assessed the viability of BV2 cells by the Cell Counting Kit (CCK)-8 cytotoxicity assay. Moreover, we used WB to measure the expression of NLRP3, IL-1β, GPX4, Keap1 and Nrf2 proteins which are involved in CIRI. RESULTS Three days after MCAO, the NLRP3-/- mice exhibited smaller cerebral infarct volumes and lower neurological deficit scores. The expression of NLRP3 inflammasome-associated proteins (IL-18 and IL-1β) and Keap1/Nrf2 signaling pathway moleculars (Keap1 and Nrf2) in mice brain tissue and BV2 cells were inhibited by NLRP3 knockout/knockdown, while the expression of GPX4, one of the ferroptosis-related factors was increased. Furthermore, the contents of Fe2+ and MDA in the brain tissues of NLRP3-/- mice were decreased, while the content of GSH were increased significantly. CONCLUSION Inhibition of the NLRP3 inflammasome alleviates CIRI by inhibiting ferroptosis and inflammation, possibly through a mechanism of the Keap1-Nrf2 pathway.
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Affiliation(s)
- Zhuo Wang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yina Li
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yingze Ye
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Hua Zhu
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jing Zhang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Huijuan Wang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jiaxi Lei
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Lijuan Gu
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Liying Zhan
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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25
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Li Y, Luo Y, Wang J, Shi H, Liao J, Wang Y, Chen Z, Xiong L, Zhang C, Wang T. Discovery of novel danshensu derivatives bearing pyrazolone moiety as potential anti-ischemic stroke agents with antioxidant activity. Bioorg Chem 2023; 131:106283. [PMID: 36436417 DOI: 10.1016/j.bioorg.2022.106283] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/07/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
Neuroprotective agents with attenuation of oxidative stress by directly scavenging ROS and indirectly through Keap1-Nrf2 signal pathway activation may be a promising cerebral ischemic stroke therapeutic strategy. In this study, a series of novel danshensu derivatives bearing pyrazolone moieties with dual antioxidant effects were synthesized for the treatment of ischemic stroke. Most compounds exhibited considerable DPPH free radical scavenging ability and neuroprotective activity against H2O2-induced oxidative injury in PC12 neuronal cells, without cytotoxicity. Among these target compounds, Del03 displayed the strongest dose-dependent neuroprotective activity in vitro, directly downregulated intracellular ROS levels, and improved the oxidative stress parameters MDA, SOD, and LDH. Del03 also promoted Nrf2 translocation to the nucleus, subsequently increasing the expression of the Nrf2 downstream target HO-1. Molecular docking analysis revealed that Del03 could anchor to the key site of Keap1. Del03 possessed the ability to penetrate blood-brain barrier and displayed good ability on pharmacokinetic properties in rats Del03 possessed good BBB penetration efficiency, suitable pharmacokinetic properties in vivo. Del03 reduced cerebral infarction volume and promoted neurological function in a middle cerebral artery occlusion (MCAO) mouse model at a dose of 20 mg/kg by intravenous injection. The characteristics of Del03 detailed in this study demonstrate its potential as a therapeutic agent in the treatment of ischemic stroke.
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Affiliation(s)
- Yi Li
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Yunchun Luo
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Jing Wang
- Department of Pharmacy, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai 201700, China
| | - Hao Shi
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Jun Liao
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Yan Wang
- Baoshan Zhaohui New Drug R & D and Transformation Functional Platform, Zhaohui Pharmaceutical, Shanghai 201908, China
| | - Zhesheng Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, New York 11439, USA
| | - Liyan Xiong
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai 200444, China.
| | - Chuan Zhang
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai 200444, China.
| | - Tingfang Wang
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai 200444, China.
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Makievskaya CI, Popkov VA, Andrianova NV, Liao X, Zorov DB, Plotnikov EY. Ketogenic Diet and Ketone Bodies against Ischemic Injury: Targets, Mechanisms, and Therapeutic Potential. Int J Mol Sci 2023; 24:2576. [PMID: 36768899 PMCID: PMC9916612 DOI: 10.3390/ijms24032576] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/17/2023] [Accepted: 01/25/2023] [Indexed: 02/03/2023] Open
Abstract
The ketogenic diet (KD) has been used as a treatment for epilepsy since the 1920s, and its role in the prevention of many other diseases is now being considered. In recent years, there has been an intensive investigation on using the KD as a therapeutic approach to treat acute pathologies, including ischemic ones. However, contradictory data are observed for the effects of the KD on various organs after ischemic injury. In this review, we provide the first systematic analysis of studies conducted from 1980 to 2022 investigating the effects and main mechanisms of the KD and its mimetics on ischemia-reperfusion injury of the brain, heart, kidneys, liver, gut, and eyes. Our analysis demonstrated a high diversity of both the composition of the used KD and the protocols for the treatment of animals, which could be the reason for contradictory effects in different studies. It can be concluded that a true KD or its mimetics, such as β-hydroxybutyrate, can be considered as positive exposure, protecting the organ from ischemia and its negative consequences, whereas the shift to a rather similar high-calorie or high-fat diet leads to the opposite effect.
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Affiliation(s)
- Ciara I. Makievskaya
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Vasily A. Popkov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Nadezda V. Andrianova
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Xinyu Liao
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Dmitry B. Zorov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Egor Y. Plotnikov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
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Sandouka S, Saadi A, Singh PK, Olowe R, Shekh-Ahmad T. Nrf2 is predominantly expressed in hippocampal neurons in a rat model of temporal lobe epilepsy. Cell Biosci 2023; 13:3. [PMID: 36600279 DOI: 10.1186/s13578-022-00951-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Drug resistance is a particular problem in patients with temporal lobe epilepsy, where seizures originate mainly from the hippocampus. Many of these epilepsies are acquired conditions following an insult to the brain such as a prolonged seizure. Such conditions are characterized by pathophysiological mechanisms including massive oxidative stress that synergistically mediate the secondary brain damage, contributing to the development of epilepsy. The transcription factor nuclear factor (erythroid-derived 2)-like 2 (Nrf2) has emerged in recent years as an attractive therapeutic approach targeting to upregulate the antioxidative defenses in the cell, to ameliorate the oxidative stress-induced damage. Thus, it is important to understand the characteristics of Nrf2 activation during epileptogenesis and epilepsy. Here, we studied the temporal, regional, and cell-type specific expression of Nrf2 in the brain, in a rat model of temporal lobe epilepsy. RESULTS Early after status-epilepticus, Nrf2 is mainly activated in the hippocampus and maintained during the whole period of epileptogenesis. Only transient expression of Nrf2 was observed in the cortex. Nevertheless, the expression of several Nrf2 antioxidant target genes was increased within 24 h after status-epilepticus in both the cortex and the hippocampus. We demonstrated that after status-epilepticus in rats, Nrf2 is predominantly expressed in neurons in the CA1 and CA3 regions of the hippocampus, and only astrocytes in the CA1 increase their Nrf2 expression. CONCLUSIONS In conclusion, our data identify previously unrecognized spatial and cell-type dependent activation of Nrf2 during epilepsy development, highlighting the need for a time-controlled, and cell-type specific activation of the Nrf2 pathway for mediating anti-oxidant response after brain insult, to modify the development of epilepsy.
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Affiliation(s)
- Sereen Sandouka
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Jerusalem, Israel
| | - Aseel Saadi
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Jerusalem, Israel
| | - Prince Kumar Singh
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Jerusalem, Israel
| | - Rhoda Olowe
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Jerusalem, Israel
| | - Tawfeeq Shekh-Ahmad
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Jerusalem, Israel.
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Beresewicz-Haller M. Hippocampal region-specific endogenous neuroprotection as an approach in the search for new neuroprotective strategies in ischemic stroke. Fiction or fact? Neurochem Int 2023; 162:105455. [PMID: 36410452 DOI: 10.1016/j.neuint.2022.105455] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 11/03/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
Ischemic stroke is the leading cause of death and long-term disability worldwide, and, while considerable progress has been made in understanding its pathophysiology, the lack of effective treatments remains a major concern. In that context, receiving more and more consideration as a promising therapeutic method is the activation of natural adaptive mechanisms (endogenous neuroprotection) - an approach that seeks to enhance and/or stimulate the endogenous processes of plasticity and protection of the neuronal system that trigger the brain's intrinsic capacity for self-defence. Ischemic preconditioning is a classic example of endogenous neuroprotection, being the process by which one or more brief, non-damaging episodes of ischemia-reperfusion (I/R) induce tissue resistance to subsequent prolonged, damaging ischemia. Another less-known example is resistance to an I/R episode mounted by the hippocampal region consisting of CA2, CA3, CA4 and the dentate gyrus (here abbreviated to CA2-4, DG). This can be contrasted with the ischemia-vulnerable CA1 region. There is not yet a good understanding of these different sensitivities of the hippocampal regions, and hence of the endogenous neuroprotection characteristic of CA2-4, DG. However, this region is widely reported to have properties distinct from CA1, and capable of generating resistance to an I/R episode. These include activation of neurotrophic and neuroprotective factors, greater activation of anti-excitotoxic and anti-oxidant mechanisms, increased plasticity potential, a greater energy reserve and improved mitochondrial function. This review seeks to summarize properties of CA2-4, DG in the context of endogenous neuroprotection, and then to assess the potential utility of these properties to therapeutic approaches. In so doing, it appears to represent the first such addressing of the issue of ischemia resistance attributable to CA2-4, DG.
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He C, Xu Y, Sun J, Li L, Zhang JH, Wang Y. Autophagy and Apoptosis in Acute Brain Injuries: From Mechanism to Treatment. Antioxid Redox Signal 2023; 38:234-257. [PMID: 35579958 DOI: 10.1089/ars.2021.0094] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Significance: Autophagy and apoptosis are two important cellular mechanisms behind brain injuries, which are severe clinical situations with increasing incidences worldwide. To search for more and better treatments for brain injuries, it is essential to deepen the understanding of autophagy, apoptosis, and their interactions in brain injuries. This article first analyzes how autophagy and apoptosis participate in the pathogenetic processes of brain injuries respectively and mutually, then summarizes some promising treatments targeting autophagy and apoptosis to show the potential clinical applications in personalized medicine and precision medicine in the future. Recent Advances: Most current studies suggest that apoptosis is detrimental to brain recovery. Several studies indicate that autophagy can cause unnecessary death of neurons after brain injuries, while others show that autophagy is beneficial for acute brain injuries (ABIs) by facilitating the removal of damaged proteins and organelles. Whether autophagy is beneficial or detrimental in ABIs depends on many factors, and the results from different research groups are diverse or even controversial, making this topic more appealing to be explored further. Critical Issues: Neuronal autophagy and apoptosis are two primary pathological processes in ABIs. How they interact with each other and how their regulations affect the outcome and prognosis of brain injuries remain uncertain, making these answers more critical. Future Directions: Insights into the interplay between autophagy and apoptosis and the accurate regulations of their balance in ABIs may promote personalized and precise treatments in the field of brain injuries. Antioxid. Redox Signal. 38, 234-257.
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Affiliation(s)
- Chuyu He
- Department of Physiology, Basic Medical and Public Health School, Jinan University, Guangzhou, China
| | - Yanjun Xu
- Department of Physiology, Basic Medical and Public Health School, Jinan University, Guangzhou, China
| | - Jing Sun
- Department of Physiology, Basic Medical and Public Health School, Jinan University, Guangzhou, China
| | - Layla Li
- Faculty of Medicine, International School, Jinan University, Guangzhou, China
| | - John H Zhang
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, California, USA.,Department of Neurosurgery, Loma Linda University, Loma Linda, California, USA
| | - Yuechun Wang
- Department of Physiology, Basic Medical and Public Health School, Jinan University, Guangzhou, China
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Is Nrf2 Behind Endogenous Neuroprotection of the Hippocampal CA2-4,DG Region? Mol Neurobiol 2023; 60:1645-1658. [PMID: 36547847 PMCID: PMC9899192 DOI: 10.1007/s12035-022-03166-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 12/10/2022] [Indexed: 12/24/2022]
Abstract
The transcription factor nuclear factor-erythroid 2-related factor 2 (Nrf2) is the master regulator of genes known to be involved in antioxidant, and anti-inflammatory processes, metabolic regulation, and other cellular functions. Here, we also hypothesize a core role for it in endogenous neuroprotection, i.e., the natural adaptive mechanisms protecting the brain from ischemia-reperfusion (I/R) episode. An example of endogenous neuroprotection is ischemia-resistance of the hippocampal regions comprising the CA2, CA3, CA4 and dentate gyrus subfields (here abbreviated to CA2-4,DG) which can be contrasted with the ischemia-vulnerable CA1 region. In the work detailed here, we used a gerbil model of transient cerebral ischemia to examined Nrf2 activation in CA1 and CA2-4,DG, in a control group, and post I/R episode. Data obtained indicate enhanced Nrf2 activity in CA2-4,DG as compared with CA1 in the control, with this difference seen to persist even after I/R. While I/R does indeed cause further activation of Nrf2 in CA2-4,DG, it is associated with slight and transient activation in CA1. Sub-regional differences in Nrf2 activity correlate with immunoreactivity of Keap1 (an Nrf2 suppressor) and Nrf2 target proteins, including heme oxygenase 1, the catalytic and modulatory sub-units of glutamate-cysteine ligase, and glutathione peroxidase 1. Pharmacological Nrf2 activation by sulforaphane results in protection of CA1 after I/R episode. Our results therefore suggest that high Nrf2 activity in CA2-4,DG may guarantee resistance of this region to I/R, potentially explaining the differential sensitivities of the hippocampal regions.
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Chebulic Acid Prevents Hypoxia Insult via Nrf2/ARE Pathway in Ischemic Stroke. Nutrients 2022; 14:nu14245390. [PMID: 36558549 PMCID: PMC9781341 DOI: 10.3390/nu14245390] [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: 11/29/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Excessive reactive oxygen species (ROS) production contributes to brain ischemia/reperfusion (I/R) injury through many mechanisms including inflammation, apoptosis, and cellular necrosis. Chebulic acid (CA) isolated from Terminalia chebula has been found to have various biological effects, such as antioxidants. In this study, we investigated the mechanism of the anti-hypoxic neuroprotective effect of CA in vitro and in vivo. The results showed that CA could protect against oxygen-glucose deprivation/reoxygenation (OGD/R) induced neurotoxicity in SH-SY5Y cells, as evidenced by the enhancement of cell viability and improvement of total superoxide dismutase (T-SOD) in SH-SY5Y cells. CA also attenuated OGD/R-induced elevations of malondialdehyde (MDA) and ROS in SH-SY5Y cells. Nuclear factor-E2-related factor 2 (Nrf2) is one of the key regulators of endogenous antioxidant defense. CA acted as antioxidants indirectly by upregulating antioxidant-responsive-element (ARE) and Nrf2 nuclear translocation to relieve OGD/R-induced oxidative damage. Furthermore, the results showed that CA treatment resulted in a significant decrease in ischemic infarct volume and improved performance in the motor ability of mice 24 h after stroke. This study provides a new niche targeting drug to oppose ischemic stroke and reveals the promising potential of CA for the control of ischemic stroke in humans.
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Resveratrol Inhibits Oxidative Stress and Regulates M1/M2-Type Polarization of Microglia via Mediation of the Nrf2/Shh Signaling Cascade after OGD/R Injury In Vitro. J Pers Med 2022; 12:jpm12122087. [PMID: 36556306 PMCID: PMC9782981 DOI: 10.3390/jpm12122087] [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: 11/06/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
AIMS Microglia are closely related to the occurrence and development of oxidative stress. Cerebral ischemia leads to abnormal activation of microglia. Resveratrol can regulate M1/M2-type microglia polarization, but the underlying mechanism is not well understood, although the Nrf2 and Shh signaling pathways may be involved. Given that resveratrol activates Shh, the present study examined whether this is mediated by Nrf2 signaling. METHODS N9 microglia were pretreated with drugs before oxygen-glucose deprivation/reoxygenation (OGD/R). HT22 neurons were also used for conditional co-culture with microglia. Cell viability was measured by CCK-8 assay. MDA levels and SOD activity in the supernatant were detected by TBA and WST-1, respectively. Immunofluorescence detected Nrf2 and Gli1 nuclear translocation. The levels of CD206, Arg1, iNOS, TNF-α, Nrf2, HO-1, NQO1, Shh, Ptc, Smo, Gli1 protein and mRNA were measured by Western blotting or RT-qPCR. Annexin V-FITC Flow Cytometric Analysis detected apoptosis. RESULTS Resveratrol and Nrf2 activator RTA-408 enhanced the viability of microglia, reduced oxidative stress, promoted M2-type microglia polarization and activated Nrf2 and Shh signaling. ML385, a selective inhibitor of Nrf2, decreased the viability of microglia, aggravated oxidative stress, promoted M1-type microglia polarization and inhibited Nrf2 and Shh signaling. Moreover, resveratrol and RTA-408-treated microglia can reduce the apoptosis and increase the viability of HT22 neurons, while ML385-treated microglia aggravated the apoptosis and weakened the viability of HT22 neurons. CONCLUSIONS These results demonstrated that resveratrol may inhibit oxidative stress, regulate M1/M2-type polarization of microglia and decrease neuronal injury in conditional co-culture of neurons and microglia via the mediation of the Nrf2/Shh signaling cascade after OGD/R injury in vitro.
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Miao Q, Wang R, Sun X, Du S, Liu L. Combination of puerarin and tanshinone IIA alleviates ischaemic stroke injury in rats via activating the Nrf2/ARE signalling pathway. PHARMACEUTICAL BIOLOGY 2022; 60:1022-1031. [PMID: 35635784 PMCID: PMC9176674 DOI: 10.1080/13880209.2022.2070221] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/16/2022] [Accepted: 04/20/2022] [Indexed: 06/08/2023]
Abstract
CONTEXT Puerarin (Pue) and tanshinone IIA (Tan IIA) are often used in combination in the treatment of cerebrovascular diseases. OBJECTIVE To investigate the neuroprotective effect and synergic mechanism of Pue-Tan IIA on the treatment of ischaemic stroke (IS). MATERIALS AND METHODS IS was induced in rats by middle cerebral artery occlusion (MCAO). Rats were intraperitoneally injected with Pue (36 mg/kg), Tan IIA (7.2 mg/kg), or Pue-Tan IIA (36 and 7.2 mg/kg) for five times [30 min before ischaemia, immediately after reperfusion (0 h), 24, 48, and 72 h after reperfusion]. After administration, neurological function assessment and histological changes in the brain were performed. S-100β and NSE levels were measured to determine the severity of brain injury. Oxidative stress parameters and inflammatory mediators were measured. The proteins involved in Nrf2/ARE signalling pathway were determined by qRT-PCR and western blot. RESULTS After administration, the neurological function scores, infarct volume, S-100β, and NSE levels were significantly reduced in MCAO rats, especially with Pue-Tan IIA treatment (p < 0.05). All treatments increased T-AOC, CAT, SOD, and GSH activities and reduced GSSG activity and MDA, TNF-α, IL-6, ICAM-1, and COX-2 levels in MCAO rats. Pue-Tan IIA significantly increased Nrf2 expression in the nucleus (1.81-fold) and decreased its expression in the cytoplasm (0.60-fold). Pue-Tan IIA significantly increased the expressions of HO-1 (1.87-fold) and NQO1 (1.76-fold) and decreased Keap1 expression (0.39-fold). DISCUSSION AND CONCLUSIONS The combination of Pue and Tan IIA could alleviate ischaemic brain injury by activating Nrf2/ARE signalling pathway, providing an experimental basis for clinical applications.
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Affiliation(s)
- Qing Miao
- China Academy of Chinese Medical Sciences, Institute of Basic Theory for Chinese Medicine, Beijing, China
| | - Ruihai Wang
- China Academy of Chinese Medical Sciences, Institute of Basic Theory for Chinese Medicine, Beijing, China
| | - Xiaoxin Sun
- China Academy of Chinese Medical Sciences, Institute of Basic Theory for Chinese Medicine, Beijing, China
| | - Song Du
- China Academy of Chinese Medical Sciences, Institute of Basic Theory for Chinese Medicine, Beijing, China
| | - Limei Liu
- China Academy of Chinese Medical Sciences, Institute of Basic Theory for Chinese Medicine, Beijing, China
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Nrf2 Regulates Oxidative Stress and Its Role in Cerebral Ischemic Stroke. Antioxidants (Basel) 2022; 11:antiox11122377. [PMID: 36552584 PMCID: PMC9774301 DOI: 10.3390/antiox11122377] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/23/2022] [Accepted: 11/27/2022] [Indexed: 12/05/2022] Open
Abstract
Cerebral ischemic stroke is characterized by acute ischemia in a certain part of the brain, which leads to brain cells necrosis, apoptosis, ferroptosis, pyroptosis, etc. At present, there are limited effective clinical treatments for cerebral ischemic stroke, and the recovery of cerebral blood circulation will lead to cerebral ischemia-reperfusion injury (CIRI). Cerebral ischemic stroke involves many pathological processes such as oxidative stress, inflammation, and mitochondrial dysfunction. Nuclear factor erythroid 2-related factor 2 (Nrf2), as one of the most critical antioxidant transcription factors in cells, can coordinate various cytoprotective factors to inhibit oxidative stress. Targeting Nrf2 is considered as a potential strategy to prevent and treat cerebral ischemia injury. During cerebral ischemia, Nrf2 participates in signaling pathways such as Keap1, PI3K/AKT, MAPK, NF-κB, and HO-1, and then alleviates cerebral ischemia injury or CIRI by inhibiting oxidative stress, anti-inflammation, maintaining mitochondrial homeostasis, protecting the blood-brain barrier, and inhibiting ferroptosis. In this review, we have discussed the structure of Nrf2, the mechanisms of Nrf2 in cerebral ischemic stroke, the related research on the treatment of cerebral ischemia through the Nrf2 signaling pathway in recent years, and expounded the important role and future potential of the Nrf2 pathway in cerebral ischemic stroke.
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Singh PK, Saadi A, Sheeni Y, Shekh-Ahmad T. Specific inhibition of NADPH oxidase 2 modifies chronic epilepsy. Redox Biol 2022; 58:102549. [PMID: 36459714 PMCID: PMC9712695 DOI: 10.1016/j.redox.2022.102549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/29/2022] [Accepted: 11/21/2022] [Indexed: 11/29/2022] Open
Abstract
Recent work by us and others has implicated NADPH oxidase (NOX) enzymes as main producers of reactive oxygen species (ROS) following a brain insult such as status epilepticus, contributing to neuronal damage and development of epilepsy. Although several NOX isoforms have been examined in the context of epilepsy, most attention has focused on NOX2. In this present study, we demonstrate the effect of gp91ds-tat, a specific competitive inhibitor of NOX2, in in vitro epileptiform activity model as well as in temporal lobe epilepsy (TLE) model in rats. We showed that in in vitro seizure model, gp91ds-tat modulated Ca2+ oscillation, prevented epileptiform activity-induced ROS generation, mitochondrial depolarization, and neuronal death. Administration of gp91ds-tat 1 h after kainic acid-induced status epilepticus significantly decreased the expression of NOX2, as well as the overall NOX activity in the cortex and the hippocampus. Finally, we showed that upon continuous intracerebroventricular administration to epileptic rats, gp91ds-tat significantly reduced the seizure frequency and the total number of seizures post-treatment compared to the scrambled peptide-treated animals. The results of the study suggest that NOX2 may have an important effect on modulation of epileptiform activity and has a critical role in mediating seizure-induced NOX activation, ROS generation and oxidative stress in the brain, and thus significantly contributes to development of epilepsy following a brain insult.
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Affiliation(s)
| | | | | | - Tawfeeq Shekh-Ahmad
- Corresponding author. The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, 91120, Israel.
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Li T, Geng Z, Zhang J, Xu L, Zhu X. BP5 alleviates endotoxemia-induced acute lung injury by activating Nrf2 via dual regulation of the Keap1-Nrf2 interaction and the Akt (Ser473)/GSK3β (Ser9)/Fyn pathway. Free Radic Biol Med 2022; 193:304-318. [PMID: 36272670 DOI: 10.1016/j.freeradbiomed.2022.10.299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/05/2022] [Accepted: 10/14/2022] [Indexed: 12/14/2022]
Abstract
Oxidative stress and inflammation play a crucial role in the pathogenesis of acute lung injury (ALI). Previously, pentapeptide bursopentin (BP5, Cys-Lys-Arg-Val-Tyr) was reported to possess significant antioxidant activity and inhibit lipopolysaccharides (LPS)-induced NF-κB activation in vitro, whereas little is known about its effects in vivo. In this study, we explored the effects of BP5 on endotoxemia-induced ALI in mice and the underlying molecular mechanisms. Our studies revealed that BP5 markedly improved survival and effectively alleviated lung injury by reducing overoxidation and excessive inflammatory response in endotoxemia mice. In LPS-stimulated mouse primary macrophages and RAW 264.7 cells, BP5 also exhibited antioxidant and anti-inflammatory properties by enhancing Nrf2 activation. Importantly, these beneficial effects were abolished by Nrf2 knockdown. To further elucidate the underlying mechanisms, we performed localized surface plasmon resonance (LSPR) assays, molecular docking, together with cell-based studies, and found that BP5 inhibited the Keap1-Nrf2 interaction to promote Nrf2 nuclear translocation and activation. Moreover, BP5-induced Nrf2 activation was shown to be accompanied by an increase in the phosphorylation of Akt (at Ser473) and GSK3β (at Ser9), and a decrease in Fyn nuclear accumulation both in vitro and in vivo. Pharmacologically inhibiting phosphorylation of Akt and GSK3β obviously enhanced Fyn nuclear accumulation in RAW 264.7 cells, which partially attenuated the promoting effect of BP5 on Nrf2 nuclear accumulation and activation. Furthermore, In Nrf2-/- mice, the protective effects of BP5 on the endotoxemia-induced ALI in WT mice were largely vanished. Our findings indicated that BP5 effectively protected endotoxemia-induced ALI against oxidative stress and inflammatory response, which are largely dependent on activation of the Nrf2 pathway. Underlying mechanisms include dual regulation of the Keap-Nrf2 interaction and the Akt (Ser473)/GSK3β (Ser9)/Fyn pathway.
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Affiliation(s)
- Tianxiang Li
- Department of Pulmonary Medicine, Zhongda Hospital, School of Medicine, South-east University, Nanjing, China.
| | - Zhirong Geng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China.
| | - Ju Zhang
- Wuhan Yangene Biological Technology Co, LTD, Yuechuang Center of HuaZhong Agricultural University, Wuhan, China.
| | - Lu Xu
- Department of Pulmonary Medicine, Zhongda Hospital, School of Medicine, South-east University, Nanjing, China.
| | - Xiaoli Zhu
- Department of Pulmonary Medicine, Zhongda Hospital, School of Medicine, South-east University, Nanjing, China.
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Zhang D, Chang R, Ren Y, He Y, Guo S, Guan F, Yao M. Injectable and reactive oxygen species-scavenging gelatin hydrogel promotes neural repair in experimental traumatic brain injury. Int J Biol Macromol 2022; 219:844-863. [PMID: 35961554 DOI: 10.1016/j.ijbiomac.2022.08.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/27/2022] [Accepted: 08/06/2022] [Indexed: 12/26/2022]
Abstract
Oxidative stress caused by the overexpression of reactive oxygen species (ROS) plays an important role in the pathogenesis of traumatic brain injury (TBI). Accumulation of ROS can lead to cell death, neurodegeneration, and neurological deficit. Therefore, the design and application of functional materials with ROS scavenging ability is of great significance for neural repair. Herein, an injectable and antioxidant hydrogel was developed for TBI treatment based on the Schiff base reaction of gallic acid-conjugated gelatin (GGA) and oxidized dextran (Odex). The resulting GGA/Odex hydrogel could effectively scavenge DPPH and ABTS radicals, as well as protect cells from the oxidative damage in vitro. Moreover, GGA/Odex hydrogel possessed well biocompatible features. In a moderate TBI mouse model, in situ implantation of GGA6Odex hydrogel efficiently facilitated neurogenesis and promoted the motor, learning and memory abilities. Also, this composite hydrogel suppressed oxidative stress and inflammation via the activation of Nrf2/HO-1 pathway and the regulating of inflammatory factors secretion and macrophage/microglia polarization. Therefore, this injectable and ROS-scavenging GGA6Odex hydrogel is a promising biomaterial for tissue regenerative medicine, including TBI and other tissue repair relevant to raised ROS circumstance.
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Affiliation(s)
- Dan Zhang
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China
| | - Rong Chang
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China
| | - Yikun Ren
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China
| | - Yuanmeng He
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China
| | - Shen Guo
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China
| | - Fangxia Guan
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China.
| | - Minghao Yao
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China.
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Ren X, Yu J, Guo L, Zhang Z. CDGSH iron sulfur domain 2 mitigates apoptosis, oxidative stress and inflammatory response caused by oxygen-glucose deprivation/reoxygenation in HT22 hippocampal neurons by Akt-Nrf2-activated pathway. Metab Brain Dis 2022; 37:2417-2429. [PMID: 35819709 DOI: 10.1007/s11011-022-01043-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/23/2022] [Indexed: 10/17/2022]
Abstract
CDGSH iron sulfur domain 2 (Cisd2) is known as a key determinant factor in maintaining cellular homeostasis. However, whether Cisd2 contributes to the mediation of neuronal injury during ischemic stroke has not been well stressed. This work focuses on investigating the role of Cisd2 in regulating neuronal injury caused by oxygen-glucose deprivation/reoxygenation (OGD/R). The dramatic down-regulation of Cisd2 was observed in hippocampal neurons suffering from OGD/R injury. In Cisd2-overexpressed neurons, OGD/R-induced neuronal apoptosis, oxidative stress and inflammation were prominently mitigated. Further investigation uncovered that the forced expression of Cisd2 reinforced the activation of nuclear factor erythroid 2-related factor 2 (Nrf2) pathway in OGD/R-exposed neurons. Moreover, the overexpression of Cisd2 enhanced Akt activation, and the restraint of Akt abolished Cisd2-induced Nrf2 activation. Importantly, restraint of Nrf2 reversed Cisd2-conferred neuroprotective effects in OGD/R-exposed neurons. Taken together, our findings indicate that Cisd2 is able to protect neurons from OGD/R-induced injuries by strengthening Nrf2 activation via Akt. Our work identifies Cisd2 as a potential determinant factor for neuronal injury during cerebral ischemia/reperfusion injury.
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Affiliation(s)
- Xiaoyan Ren
- Anesthesiology Department, The First Affiliated Hospital of China Medical University, No.155 Nanjing North Street, Shenyang, 110001, Liaoning Province, China
| | - Jiangang Yu
- Anesthesiology Department, The First Affiliated Hospital of China Medical University, No.155 Nanjing North Street, Shenyang, 110001, Liaoning Province, China
| | - Lili Guo
- Anesthesiology Department, The First Affiliated Hospital of China Medical University, No.155 Nanjing North Street, Shenyang, 110001, Liaoning Province, China
| | - Zaili Zhang
- Anesthesiology Department, The First Affiliated Hospital of China Medical University, No.155 Nanjing North Street, Shenyang, 110001, Liaoning Province, China.
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miR-602 Activates NRF2 Antioxidant Pathways to Protect HBMECs from OGD/R-Induced Oxidative Stress via Targeting KEAP1 and HRD1. DISEASE MARKERS 2022; 2022:6967573. [PMID: 36193504 PMCID: PMC9526584 DOI: 10.1155/2022/6967573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/31/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022]
Abstract
Blood brain barrier (BBB) dysfunction is a critical complication of diabetes mellitus type 2 (T2DM), and the oxidative stress-induced apoptosis of human brain microvascular endothelial cells (HBMECs) is a main cause of BBB dysfunction. In this study, oxygen and glucose deprivation/reoxygenation (OGD/R) models were established with HBMECs to analyze the effects of miR-602 on the apoptosis of HMBECs. Western Blot, qRT-PCR, CCK-8, flow cytometry assay, ROS detection assay, and dual-luciferase reporter gene assay were used to measure the expression levels of corresponding factors and changes in intracellular environment. The results showed that miR-602 was overexpressed in HBMECs after OGD/R treatment, and miR-602 could reduce ROS level of OGD/R-induced HBMECs and promote cells survival via increasing the expression level of NRF2 and the transcription activity of NRF2/ARE. Besides, it was found that KEAP1 and HRD1 were downstream factors of miR-602, and the increase of both KEAP1 and HRD1 could reverse the effects of miR-602 on the OGD/R-induced HMBECs. Therefore, miR-602 may be a potential target for research and treatment of the oxidative stress injury induced by apoptosis in HMBECs.
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Saadi A, Sandouka S, Grad E, Singh PK, Shekh-Ahmad T. Spatial, temporal, and cell-type-specific expression of NADPH Oxidase isoforms following seizure models in rats. Free Radic Biol Med 2022; 190:158-168. [PMID: 35964838 DOI: 10.1016/j.freeradbiomed.2022.08.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/02/2022] [Accepted: 08/05/2022] [Indexed: 11/16/2022]
Abstract
The NADPH Oxidase (NOX) enzymes are key producers of reactive oxygen species (ROS) and consist of seven different isoforms, distributed across the tissues and cell types. The increasing level of ROS induces oxidative stress playing a crucial role in neuronal death and the development of epilepsy. Recently, NOX2 was reported as a primary source of ROS production, activated by NMDA receptor, a crucial marker of epilepsy development. Here, we demonstrate spatial, temporal, and cellular expression of NOX2 and NOX4 complexes in in-vitro and in-vivo seizure models. We showed that the expression of NOX2 and NOX4 was increased in the initial 24 h following a brief seizure induced by pentylenetetrazol. Interestingly, while this elevated level returns to baseline 48 h following seizure in the cortex, in the hippocampus these levels remain elevated up to one week following the seizure. Moreover, we showed that 1- and 2- weeks following status epilepticus (SE), expression of NOX2 and NOX4 remains significantly elevated both in the cortex and the hippocampus. Furthermore, in in-vitro seizure model, NOX2 and NOX4 isoforms were overexpressed in neurons and astrocytes following seizures. These results suggest that NOX2 and NOX4 in the brain have a transient response to seizures, and these responses temporally vary depending on, seizure duration, brain region (cortex or hippocampus), and cell types.
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Affiliation(s)
- Aseel Saadi
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, 91120, Israel
| | - Sereen Sandouka
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, 91120, Israel
| | - Etty Grad
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, 91120, Israel
| | - Prince Kumar Singh
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, 91120, Israel
| | - Tawfeeq Shekh-Ahmad
- The Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, 91120, Israel.
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Mumu M, Das A, Emran TB, Mitra S, Islam F, Roy A, Karim MM, Das R, Park MN, Chandran D, Sharma R, Khandaker MU, Idris AM, Kim B. Fucoxanthin: A Promising Phytochemical on Diverse Pharmacological Targets. Front Pharmacol 2022; 13:929442. [PMID: 35983376 PMCID: PMC9379326 DOI: 10.3389/fphar.2022.929442] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/23/2022] [Indexed: 12/24/2022] Open
Abstract
Fucoxanthin (FX) is a special carotenoid having an allenic bond in its structure. FX is extracted from a variety of algae and edible seaweeds. It has been proved to contain numerous health benefits and preventive effects against diseases like diabetes, obesity, liver cirrhosis, malignant cancer, etc. Thus, FX can be used as a potent source of both pharmacological and nutritional ingredient to prevent infectious diseases. In this review, we gathered the information regarding the current findings on antimicrobial, antioxidant, anti-inflammatory, skin protective, anti-obesity, antidiabetic, hepatoprotective, and other properties of FX including its bioavailability and stability characteristics. This review aims to assist further biochemical studies in order to develop further pharmaceutical assets and nutritional products in combination with FX and its various metabolites.
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Affiliation(s)
- Mumtaza Mumu
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Ayan Das
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong, Bangladesh
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
- *Correspondence: Talha Bin Emran, ; Abubakr M. Idris, ; Bonglee Kim,
| | - Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | - Fahadul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
| | - Arpita Roy
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, India
| | - Md. Mobarak Karim
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
| | - Rajib Das
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
| | - Moon Nyeo Park
- Department of Pathology College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Deepak Chandran
- Department of Veterinary Sciences and Animal Husbandry, Amrita School of Agricultural Sciences, Amrita Vishwa Vidyapeetham University, Coimbatore, India
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Mayeen Uddin Khandaker
- Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, Bandar Sunway, Malaysia
| | - Abubakr M. Idris
- Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
- *Correspondence: Talha Bin Emran, ; Abubakr M. Idris, ; Bonglee Kim,
| | - Bonglee Kim
- Department of Pathology College of Korean Medicine, Kyung Hee University, Seoul, South Korea
- *Correspondence: Talha Bin Emran, ; Abubakr M. Idris, ; Bonglee Kim,
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Dai J, Xiao Z, Li J, Ge Q, Wang H, Sha R, Mao J. The structural characteristic of bamboo shoot shell polysaccharides extracted using ultrasound‐assisted phosphotungstic acid hydrolysis and its protection against cell oxidative injury. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.16009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Dai
- School of Biological and Chemical Engineering Zhejiang University of Science and Technology Hangzhou 310023 P. R. China
- Zhejiang Provincial Key Laboratory for Chemical and Biological Processing Technology of Farm Products Hangzhou 310023 P. R. China
- Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing Hangzhou 310023 P. R. China
| | - Zhuqian Xiao
- School of Biological and Chemical Engineering Zhejiang University of Science and Technology Hangzhou 310023 P. R. China
- Zhejiang Provincial Key Laboratory for Chemical and Biological Processing Technology of Farm Products Hangzhou 310023 P. R. China
- Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing Hangzhou 310023 P. R. China
| | - Jiajie Li
- School of Biological and Chemical Engineering Zhejiang University of Science and Technology Hangzhou 310023 P. R. China
| | - Qing Ge
- School of Biological and Chemical Engineering Zhejiang University of Science and Technology Hangzhou 310023 P. R. China
- Zhejiang Provincial Key Laboratory for Chemical and Biological Processing Technology of Farm Products Hangzhou 310023 P. R. China
- Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing Hangzhou 310023 P. R. China
| | - Hongpeng Wang
- School of Biological and Chemical Engineering Zhejiang University of Science and Technology Hangzhou 310023 P. R. China
- Zhejiang Provincial Key Laboratory for Chemical and Biological Processing Technology of Farm Products Hangzhou 310023 P. R. China
- Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing Hangzhou 310023 P. R. China
| | - Ruyi Sha
- School of Biological and Chemical Engineering Zhejiang University of Science and Technology Hangzhou 310023 P. R. China
- Zhejiang Provincial Key Laboratory for Chemical and Biological Processing Technology of Farm Products Hangzhou 310023 P. R. China
- Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing Hangzhou 310023 P. R. China
| | - Jianwei Mao
- School of Biological and Chemical Engineering Zhejiang University of Science and Technology Hangzhou 310023 P. R. China
- Zhejiang Provincial Key Laboratory for Chemical and Biological Processing Technology of Farm Products Hangzhou 310023 P. R. China
- Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing Hangzhou 310023 P. R. China
- Zhejiang Industry Polytechnic College Shaoxing 312000 P. R. China
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Ma Y, Liu X, Liu D, Yin Z, Yang X, Zeng M. Oyster ( Crassostrea gigas) Polysaccharide Ameliorates High-Fat-Diet-Induced Oxidative Stress and Inflammation in the Liver via the Bile Acid-FXR-AMPKα Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:8662-8671. [PMID: 35797440 DOI: 10.1021/acs.jafc.2c02490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Oyster polysaccharides (OPS) have a variety of biological activities. In this study, we aimed to investigate the potential mechanisms of OPS to ameliorate hepatic oxidative stress and inflammation in mice induced by a high-fat diet (HFD). The results showed that OPS reduced the HFD-induced increases in serum transaminase levels and alleviated hepatic oxidative stress and inflammation. Moreover, OPS regulated bile acid metabolism and increased bile acid content in the liver, serum, and feces. Serum bile acid profile results indicated that OPS reduced levels of chenodeoxycholic acid, deoxycholic acid, and lithocholic acid associated with high-affinity agonists of Farnesol X receptor (FXR). Western blot analysis showed that OPS accelerated bile acid metabolism by downregulating hepatic FXR expression and promoting its downstream CYP7A1, CYP27A1, and CYP8B1 protein expression. Meanwhile, OPS ameliorated oxidative stress and inflammation in the liver by modulating FXR-AMPKα-Nrf2/NF-κB signaling to reduce p-IκBα/IκBα, p-NF-κB p65/NF-κB p65, IL-1β, and TNF-α expression and increase p-Nrf2/Nrf2, HO-1, and NQO-1 expression. This study was the first to explore the possible mechanism of OPS in improving liver oxidative stress and inflammation from the perspective of bile acid metabolism, providing a theoretical basis for OPS as a new source of functional food.
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Affiliation(s)
- Yuyang Ma
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, China
| | - Xue Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, China
| | - Defu Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, China
| | - Zihao Yin
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, China
| | - Xinyi Yang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, China
| | - Mingyong Zeng
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, China
- Qingdao Engineering Research Center for Preservation Technology of Marine Foods, Qingdao 266003, Shandong, China
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Liu M, Zhou X, Li Y, Ma S, Pan L, Zhang X, Zheng W, Wu Z, Wang K, Ahsan A, Wu J, Jiang L, Lu Y, Hu W, Qin Z, Chen Z, Zhang X. TIGAR alleviates oxidative stress in brain with extended ischemia via a pentose phosphate pathway-independent manner. Redox Biol 2022; 53:102323. [PMID: 35576689 PMCID: PMC9118922 DOI: 10.1016/j.redox.2022.102323] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/24/2022] [Accepted: 04/24/2022] [Indexed: 01/18/2023] Open
Abstract
TP53-induced glycolysis and apoptosis regulator (TIGAR) alleviates oxidative stress and protects against ischemic neuronal injury by shifting glucose metabolism into the pentose phosphate pathway (PPP). However, the brain alters glucose metabolism from PPP to glycolysis during prolonged ischemia. It is still unknown whether and how TIGAR exerts the antioxidant activity and neuroprotection in prolonged ischemic brains. Here, we determined the significant upregulation of TIGAR that was proportional to the duration of ischemia. However, TIGAR failed to upregulate the NADPH level but still alleviated oxidative stress in neuronal cells with prolonged oxygen glucose-deprivation (OGD). Furthermore, inhibiting PPP activity, either by the expression of mutant TIGAR (which lacks enzymatic activity) or by silencing Glucose 6-phosphate dehydrogenase, still retained antioxidant effects and neuroprotection of TIGAR with prolonged OGD. Intriguingly, TIGAR-induced autophagy alleviated oxidative stress, contributing to neuron survival. Further experiments indicated that TIGAR-induced autophagy neutralized oxidative stress by activating Nrf2, which was cancelled by ML385 or Nrf2 knockdown. Remarkably, either Atg7 deletion or Nrf2 silencing abolished the neuroprotection of TIGAR in mice with prolonged ischemia. Taken together, we found a PPP-independent pathway in which TIGAR alleviates oxidative stress. TIGAR induces autophagy and, thus, activates Nrf2, offering sustainable antioxidant defense in brains with extended ischemia. This previously unexplored mechanism of TIGAR may serve as a critical compensation for antioxidant activity caused by the lack of glucose in ischemic stroke. We identified a PPP-independent mechanism of TIGAR to neutralize ROS in neurons with extended ischemia. In neuronal cells with prolonged ischemia, TIGAR-induced autophagy alleviated oxidative stress. TIGAR-induced autophagy activated Nrf2, which compensated for the poor NADPH generation with prolonged ischemia.
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Huo K, Ma KG, Guo QY, Duan P, Xu J. Perilipin 5 protects against oxygen-glucose deprivation/reoxygenation-elicited neuronal damage by inhibiting oxidative stress and inflammatory injury via the Akt-GSK-3β-Nrf2 pathway. Int Immunopharmacol 2022; 108:108718. [DOI: 10.1016/j.intimp.2022.108718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/02/2022] [Accepted: 03/17/2022] [Indexed: 11/05/2022]
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Cheng J, Ma X, Zhang H, Wu X, Li M, Ai G, Zhan R, Xie J, Su Z, Huang X. 8-Oxypalmatine, a novel oxidative metabolite of palmatine, exhibits superior anti-colitis effect via regulating Nrf2 and NLRP3 inflammasome. Biomed Pharmacother 2022; 153:113335. [PMID: 35779424 DOI: 10.1016/j.biopha.2022.113335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/18/2022] [Accepted: 06/23/2022] [Indexed: 11/25/2022] Open
Abstract
Palmatine (PAL) is an isoquinoline alkaloid derived from Fibraureae caulis Pierre that has been used to relieve inflammatory diseases like ulcerative colitis (UC). The metabolites of PAL were believed to contribute significantly to its outstanding biological activities. 8-Oxypalmatine (OPAL), a liver-mediated oxidative metabolite of PAL, has been firstly identified in the present work. We aimed to comparatively investigate the potential effect and mechanism of OPAL and PAL on dextran sodium sulfate (DSS)-induced colitis in Balb/c mice. Results indicated that OPAL and PAL effectively mitigated clinical manifestations, DAI scores and pathological damage compared with the model group. Moreover, treatment with OPAL and PAL effectively mitigated oxidative stress markers and inflammatory mediators in colon. Additionally, OPAL and PAL significantly activated the Nrf2 pathway, while substantially suppressed the activation of NLRP3 inflammasome. Furthermore, OPAL showed superior anti-colitis effect to PAL, which was similar to the positive drug mesalazine with much smaller dosage. These findings suggested that OPAL exerted appreciable protective effect on DSS-induced colitis, at least in part, via activating Nrf2 pathway and inhibiting NLRP3 inflammasome. OPAL might have the potential to be further developed into a promising candidate for the treatment of UC.
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Affiliation(s)
- Juanjuan Cheng
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Xingdong Ma
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Haitao Zhang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China
| | - Xiaoyan Wu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Minhua Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Gaoxiang Ai
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Ruoting Zhan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Jianhui Xie
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, PR China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, PR China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou 510120, PR China
| | - Ziren Su
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China.
| | - Xiaoqi Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China; Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, PR China.
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Wang S, Qi X. The Putative Role of Astaxanthin in Neuroinflammation Modulation: Mechanisms and Therapeutic Potential. Front Pharmacol 2022; 13:916653. [PMID: 35814201 PMCID: PMC9263351 DOI: 10.3389/fphar.2022.916653] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 06/07/2022] [Indexed: 12/03/2022] Open
Abstract
Neuroinflammation is a protective mechanism against insults from exogenous pathogens and endogenous cellular debris and is essential for reestablishing homeostasis in the brain. However, excessive prolonged neuroinflammation inevitably leads to lesions and disease. The use of natural compounds targeting pathways involved in neuroinflammation remains a promising strategy for treating different neurological and neurodegenerative diseases. Astaxanthin, a natural xanthophyll carotenoid, is a well known antioxidant. Mounting evidence has revealed that astaxanthin is neuroprotective and has therapeutic potential by inhibiting neuroinflammation, however, its functional roles and underlying mechanisms in modulating neuroinflammation have not been systematically summarized. Hence, this review summarizes recent progress in this field and provides an update on the medical value of astaxanthin. Astaxanthin modulates neuroinflammation by alleviating oxidative stress, reducing the production of neuroinflammatory factors, inhibiting peripheral inflammation and maintaining the integrity of the blood-brain barrier. Mechanistically, astaxanthin scavenges radicals, triggers the Nrf2-induced activation of the antioxidant system, and suppresses the activation of the NF-κB and mitogen-activated protein kinase pathways. With its good biosafety and high bioavailability, astaxanthin has strong potential for modulating neuroinflammation, although some outstanding issues still require further investigation.
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Gu C, Zhang Q, Li Y, Li R, Feng J, Chen W, Ahmed W, Soufiany I, Huang S, Long J, Chen L. The PI3K/AKT Pathway-The Potential Key Mechanisms of Traditional Chinese Medicine for Stroke. Front Med (Lausanne) 2022; 9:900809. [PMID: 35712089 PMCID: PMC9194604 DOI: 10.3389/fmed.2022.900809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/26/2022] [Indexed: 12/16/2022] Open
Abstract
Stroke is associated with a high disability and fatality rate, and adversely affects the quality of life of patients and their families. Traditional Chinese Medicine (TCM) has been used effectively in the treatment of stroke for more than 2000 years in China and surrounding countries and regions, and over the years, this field has gleaned extensive clinical treatment experience. The Phosphatidylinositol 3 kinase (PI3K)/protein kinase B (AKT) pathway is important for regulation of cell migration, proliferation, differentiation, and apoptosis, and plays a vital role in vascularization and oxidative stress in stroke. Current Western medicine treatment protocols for stroke include mainly pharmacologic or mechanical thrombectomy to restore blood flow. This review collates recent advances in the past 5 years in the TCM treatment of stroke involving the PI3K/AKT pathway. TCM treatment significantly reduces neuronal damage, inhibits cell apoptosis, and delays progression of stroke via various PI3K/AKT-mediated downstream pathways. In the future, TCM can provide new perspectives and directions for exploring the key factors, and effective activators or inhibitors that affect occurrence and progression of stroke, thereby facilitating treatment.
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Affiliation(s)
- Chenyang Gu
- Department of Neurosurgery, Neuroscience Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Qiankun Zhang
- Department of Neurosurgery, Neuroscience Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yajing Li
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Rong Li
- Department of Neurosurgery, Neuroscience Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jia Feng
- Department of Neurosurgery, Neuroscience Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Wanghao Chen
- Department of Neurosurgery, Shanghai 9th People Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Waqas Ahmed
- School of Medicine, Southeast University, Nanjing, China
| | | | - Shiying Huang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jun Long
- Department of Neurosurgery, Neuroscience Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Lukui Chen
- Department of Neurosurgery, Neuroscience Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
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Elbaz EM, Ahmed KA, Abdelmonem M. Resveratrol mitigates diclofenac-induced hepatorenal toxicity in rats via modulation of miR-144/Nrf2/GSH axis. J Biochem Mol Toxicol 2022; 36:e23129. [PMID: 35673973 DOI: 10.1002/jbt.23129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/01/2022] [Accepted: 05/29/2022] [Indexed: 12/11/2022]
Abstract
Despite the extensive therapeutic uses of diclofenac, it may cause several adverse effects, including hepatorenal injury. The antioxidant and anti-inflammatory properties of resveratrol, a polyphenolic compound, make the agent effective in ameliorating a variety of drug-induced injuries. This study investigated the potential beneficial effects of resveratrol on diclofenac-induced hepatorenal toxicity and explored the role of miR-144 and its relationship to oxidative stress and inflammation triggered by diclofenac. Rats were divided into four groups: control; diclofenac group received diclofenac (10 mg/kg/day, intraperitoneal [ip]) for 7 days; prevention group received resveratrol concomitantly with diclofenac for 7 days; and the treatment group received diclofenac for 7 days followed by resveratrol (20 mg/kg/day, per oral) for another 7 days. Diclofenac administration induced a significant increase in serum hepatorenal biomarkers and histopathological aberrations. In addition, diclofenac upregulated miR-144 while reducing nuclear factor erythroid 2-related factor 2 (Nrf2) protein levels and glutathione (GSH) content. Moreover, diclofenac induced tissue inflammation and apoptosis as evidenced by increased protein expression of nuclear factor kappa B (NF-κB), tumor necrosis factor α (TNF-α), and caspase-3. Intriguingly, resveratrol prevention or treatment significantly mitigated the toxic effects of diclofenac as manifested by normalization of the hepatorenal functions and amelioration of the histopathological changes. Resveratrol also triggered miR-144 downregulation with Nrf2 upregulation. Consequently, resveratrol showed hepatorenal antioxidant, anti-inflammatory, and antiapoptotic activities as manifested by improvement in the antioxidant markers along with a decline in NF-κB, TNF-α, and caspase-3 expressions. In conclusion, this study demonstrates a potential therapeutic role of resveratrol in mitigating diclofenac-induced hepatorenal insult, possibly via modulating miR-144/Nrf2/GSH axis.
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Affiliation(s)
- Eman M Elbaz
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Kawkab A Ahmed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
| | - Maha Abdelmonem
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Zhao X, He Y, Zhang Y, Wan H, Wan H, Yang J. Inhibition of Oxidative Stress: An Important Molecular Mechanism of Chinese Herbal Medicine (Astragalus membranaceus, Carthamus tinctorius L., Radix Salvia Miltiorrhizae, etc.) in the Treatment of Ischemic Stroke by Regulating the Antioxidant System. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1425369. [PMID: 35651725 PMCID: PMC9151006 DOI: 10.1155/2022/1425369] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/11/2022] [Indexed: 01/07/2023]
Abstract
Ischemic stroke is a severe cerebrovascular disease with high mortality and morbidity. Traditional Chinese medicine (TCM) has been utilized for thousands of years in China and is becoming increasingly popular all over the world, especially for the treatments of ischemic stroke. More and more evidences have implicated that oxidative stress has been closely related with ischemic stroke. This review will concentrate on the evidence of the action mechanism of Chinese herbal medicine and its active ingredient in preventing ischemic stroke by modulating redox signaling and oxidative stress pathways and providing references for clinical treatment and scientific research applications.
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Affiliation(s)
- Xixi Zhao
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yu He
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yangyang Zhang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Haofang Wan
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Haitong Wan
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jiehong Yang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
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