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Artemisia amygdalina Upregulates Nrf2 and Protects Neurons Against Oxidative Stress in Alzheimer Disease. Cell Mol Neurobiol 2019; 39:387-399. [DOI: 10.1007/s10571-019-00656-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 01/29/2019] [Indexed: 12/26/2022]
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Zhao Q, Qu R, Teng L, Yin C, Yuan Y. HO-1 protects the nerves of rats with cerebral hemorrhage by regulating the PI3K/AKT signaling pathway. Neuropsychiatr Dis Treat 2019; 15:1459-1468. [PMID: 31239681 PMCID: PMC6551621 DOI: 10.2147/ndt.s197030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 04/24/2019] [Indexed: 12/12/2022] Open
Abstract
Objective: This study aimed to investigate the neuroprotective effect of heme oxygenase-1 (HO-1) on the PI3K/AKT signaling pathway in rats with cerebral hemorrhage. Materials and methods: Adult male Sprague-Dawley rats were randomly divided into: a sham group, a model group and an HO-1 inhibitor group (ZnPP group). Functional defects after surgery were scored according to the Longa5 standard. Hemotoxylin and eosin staining was used to detect whether the model was constructed successfully. Superoxide dismutase (SOD) vitality and malondialdehyde (MDA) content were calculated by the xanthine oxidase method and thiobarbituric acid method, respectively. Blood-brain barrier permeability was measured by Evans Blue. Apoptosis was detected by terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling assay. The expression of Bcl-2 and BAX was evaluated by immunohistochemistry and the expression of PI3K, p-PI3K, AKT and p-AKT was tested by Western blotting. Results: The rat intracerebral hemorrhage model was successfully constructed. Compared with the model group, the bleeding in the ZnPP group was more serious, the cell edema and deformation were aggravated, and the neurological deficit score in the rat was significantly increased. In addition, the content of Evans blue, MDA, the number of apoptotic cells, the water content of brain tissue and the expression of BAX were significantly increased, while the SOD activity and the expressions of Bcl-2, p-PI3K and p-AKT protein were decreased. Conclusion: HO-1 could protect the nerves of rats with cerebral hemorrhage by regulating the PI3K/AKT signaling pathway.
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Affiliation(s)
- Qingping Zhao
- Department of Neurosurgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai City, Shandong Province 264000, People's Republic of China
| | - Rongbo Qu
- Department of Neurosurgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai City, Shandong Province 264100, People's Republic of China
| | - Lu Teng
- Department of Neurosurgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai City, Shandong Province 264000, People's Republic of China
| | - Changyou Yin
- Department of Neurosurgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai City, Shandong Province 264000, People's Republic of China
| | - Yuan Yuan
- Department of Neurosurgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai City, Shandong Province 264000, People's Republic of China
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Sun J, Yu X, Huangpu H, Yao F. Ginsenoside Rb3 protects cardiomyocytes against hypoxia/reoxygenation injury via activating the antioxidation signaling pathway of PERK/Nrf2/HMOX1. Biomed Pharmacother 2018; 109:254-261. [PMID: 30396083 DOI: 10.1016/j.biopha.2018.09.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 09/03/2018] [Accepted: 09/03/2018] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVES This study aimed to investigate the pharmacological function and underlying regulation mechanisms of Ginsenoside-Rb3 (G-Rb3) in cardioprotection. METHODS Cultured H9C2 cells were pre-treated with gradient concentrations of G-Rb3, and subsequently challenged with hypoxia/reoxygenation (H/R) treatment. The generation of intracellular reactive oxygen species (ROS) and cellular antioxidatant capacity were quantified. Cell apoptosis was measured by flow cytometry. Myocardial ischemia reperfusion injury (MIRI) rat models constructed by coronary artery ligation surgery were orally administrated with G-Rb3 for 5 consecutive days, and then infarction area, apoptosis ratio and total antioxidant capacity (T-AOC) of myocardial tissues were measured. PERK phosphorylation inhibitor GSK2656157 and Nrf2 translocation inhibitor ML385 were co-treated with G-Rb3 to further verify the signaling pathway mediated by G-Rb3. RESULTS H/R treatment induced prominent ROS deposition and elevated cell apoptosis ratio in H9C2 cells. G-Rb3 pretreatment suppressed intracellular ROS accumulation and enhanced T-AOC, partially rescuing cardiomyocytes from oxidative stress and apoptosis induced by H/R. In vivo, the cardiac infarction area of MIRI model rats was reduced by G-Rb3 treatment via improved total antioxidant levels. In the further functional and mechanistic studies, G-Rb3 was found to induce PERK phosphorylation and nuclear translocation of transcriptional factor Nrf2, promoting the expression of antioxidative genes such as HMOX1. Inhibitors GSK2656157 and ML385 reversed the effects of G-Rb3. CONCLUSION Our studies revealed a novel mechanism of G-Rb3 to attenuates oxidative stress via activating the antioxidation signaling pathway of PERK/Nrf2/HMOX1 in vivo and in vitro, which may help us to enrich the theoretical knewledge of Ginsenoside-Rb3 in cardiopretection.
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Affiliation(s)
- Jing Sun
- Second Department of Cardiovascular, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, No. 26, Heping Road, Xiangfang District, Harbin 150040, Heilongjiang Province, PR China
| | - Xiaohong Yu
- Second Department of Cardiovascular, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, No. 26, Heping Road, Xiangfang District, Harbin 150040, Heilongjiang Province, PR China
| | - Haiquan Huangpu
- Second Department of Cardiovascular, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, No. 26, Heping Road, Xiangfang District, Harbin 150040, Heilongjiang Province, PR China
| | - Fengzhen Yao
- Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Xiangfang District, Harbin 150040, Heilongjiang Province, PR China.
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Aqueous Extract of Davallia mariesii Attenuates 6-Hydroxydopamine-Induced Oxidative Damage and Apoptosis in B35 Cells Through Inhibition of Caspase Cascade and Activation of PI3K/AKT/GSK-3β Pathway. Nutrients 2018; 10:nu10101449. [PMID: 30301204 PMCID: PMC6213869 DOI: 10.3390/nu10101449] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 09/25/2018] [Accepted: 10/02/2018] [Indexed: 12/31/2022] Open
Abstract
The medicinal ferns of Polydiaceae and Davalliaceae species are called "Gusuibu" by Chinese physicians and used as antiaging dietary medicines. Our previous report revealed that Drynaria fortunei (Polydiaceae) protected against 6-hydroxydopamine (6-OHDA)-induced oxidative damage via the PI3K/AKT pathway in B35 neuroblastoma cells. The present study compares the antioxidant phytoconstituent contents and radical scavenging capacities of five Davalliaceae species. The further aim was to clarify the protective mechanism of Davallia mariesii (DM) against 6-OHDA-induced oxidative damage and apoptosis in B35 cells. The results show that Araiostegia perdurans (AP) and DM extracts have better radical scavenging capacities against 1,1-diphenyl-2-picryhydrazyl (DPPH) and reactive oxygen species (ROS) than other Davalliaceae species. However, only DM extract inhibited 6-OHDA autoxidation under cell-free systems and increased cell viability, compared to B35 cells solely exposed to 6-OHDA. DM extract decreased apoptosis and restored mitochondrial expression in 6-OHDA-treated B35 cells. Additional data indicated that DM extract decreased intracellular ROS and nitric oxide levels generated by 6-OHDA exposure. DM extract also restored glutathione (GSH) levels and the activities of glutathione peroxidase and reductase, and then decreased the elevated malondialdehyde (MDA) levels. Finally, DM extract regulated the protein expression of the caspase cascade and PI3K/AKT/GSK-3β pathways. These results suggest that the protective mechanism of DM extract against 6-OHDA-induced oxidative damage and apoptosis might be related to its radical scavenging capacity, maintaining the mitochondrial function to inhibit the Bcl-2/caspase cascade pathway and activating intracellular antioxidant defenses (GSH recycling, HO-1 and NQO-1) by modulating the activation of the PI3K/AKT/GSK-3β pathway.
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Du S, Liu H, Lei T, Xie X, Wang H, He X, Tong R, Wang Y. Mangiferin: An effective therapeutic agent against several disorders (Review). Mol Med Rep 2018; 18:4775-4786. [PMID: 30280187 DOI: 10.3892/mmr.2018.9529] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 08/20/2018] [Indexed: 11/05/2022] Open
Abstract
Mangiferin (1,3,6,7‑tetrahydroxyxanthone‑C2‑β‑D‑glucoside) is a bioactive ingredient predominantly isolated from the mango tree, with potent antioxidant activity and multifactorial pharmacological effects, including antidiabetic, antitumor, lipometabolism regulating, cardioprotective, anti‑hyperuricemic, neuroprotective, antioxidant, anti‑inflammatory, antipyretic, analgesic, antibacterial, antiviral and immunomodulatory effects. Therefore, it possesses several health‑endorsing properties and is a promising candidate for further research and development. However, low solubility, mucosal permeability and bioavailability restrict the development of mangiferin as a clinical therapeutic, and chemical and physical modification is required to expand its application. This review comprehensively analyzed and collectively summarized the primary pharmacological actions of mangiferin that have been demonstrated in the literature, to support the potential future development of mangiferin as a novel therapeutic drug.
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Affiliation(s)
- Suya Du
- Department of Pharmacy, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Huirong Liu
- Institute of Organ Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Tiantian Lei
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P.R. China
| | - Xiaofang Xie
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P.R. China
| | - Hailian Wang
- Institute of Organ Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Xia He
- Personalized Drug Therapy Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Rongsheng Tong
- Personalized Drug Therapy Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Yi Wang
- Personalized Drug Therapy Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
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The protective effects of mangiferin on metabolic and organs functions in the adolescent rat model of alcohol abuse. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.04.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Sadhukhan P, Saha S, Dutta S, Sil PC. Mangiferin Ameliorates Cisplatin Induced Acute Kidney Injury by Upregulating Nrf-2 via the Activation of PI3K and Exhibits Synergistic Anticancer Activity With Cisplatin. Front Pharmacol 2018; 9:638. [PMID: 29967581 PMCID: PMC6015878 DOI: 10.3389/fphar.2018.00638] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 05/29/2018] [Indexed: 12/12/2022] Open
Abstract
Occurrence of oxidative stress is the principal cause of acute kidney injury induced by cisplatin. Mangiferin, a naturally occurring antioxidant molecule, is found to ameliorate several oxidative stress mediated pathophysiological conditions including cancer. Cisplatin induced cytotoxicity was measured in NKE cells by MTT assay and microscopic analysis. Induction of oxidative stress and regulation of proapoptotic molecules were subsequently investigated by using different spectrophotometric analyses, FACS and immunocytochemistry. Induction of nephrotoxicity was determined by analyzing different serum biomarkers and histological parameters in vivo using swiss albino mice. Activation of NF-κB mediated pro-inflammatory and caspase dependent signaling cascades were investigated by semi-quantitative RT-PCR and immunoblotting. Mangiferin was found to ameliorate cisplatin induced nephrotoxicity in vitro and in vivo by attenuating the induction of oxidative stress and upregulating Nrf-2 mediated pro-survival signaling cascades via the activation of PI3K. Additionally, mangiferin showed synergistic anticancer activity with cisplatin in cancer cell lines (MCF-7 and SKRC-45) and EAC cell induced solid tumor bearing experimental mice. The ameliorative effect of mangiferin is primarily attributed to its anti-oxidant and anti-inflammatory properties. It acts differentially in normal tissue cells and tumor cells by modulating different cell survival regulatory signaling molecules. For the first time, the study reveals a mechanistic basis of mangiferin action against cisplatin induced nephrotoxicity. Since Mangiferin shows synergistic anticancer activity with cisplatin, it can be considered as a promising drug candidate, to be used in combination with cisplatin.
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Affiliation(s)
| | - Sukanya Saha
- Division of Molecular Medicine, Bose Institute, Kolkata, India
| | - Sayanta Dutta
- Division of Molecular Medicine, Bose Institute, Kolkata, India
| | - Parames C Sil
- Division of Molecular Medicine, Bose Institute, Kolkata, India
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Begum M ET, Sen D. DOR agonist (SNC-80) exhibits anti-parkinsonian effect via downregulating UPR/oxidative stress signals and inflammatory response in vivo. Neurosci Lett 2018; 678:29-36. [PMID: 29727730 DOI: 10.1016/j.neulet.2018.04.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 04/28/2018] [Accepted: 04/30/2018] [Indexed: 12/21/2022]
Abstract
The pathophysiology of Parkinson's disease exhibit imperative roles in unfolded protein response stress-induced oxidative stress and inflammation in general. Although, delta opioid receptor (DOR), has been found to represent anti-parkinsonian effect at behavioral level, its underlying mechanism remains elusive till date. In the present study the role of DOR agonist, SNC-80 and the consorted molecular mechanisms, which translates to behavioral recuperation, has been delineated. In order to mimic PD, mice were intra-peritoneally injected with MPTP, following exposure to SNC-80 and L-DOPA to elucidate amelioration of the MPTP-induced behavioral impairments. The results obtained suggest that the severity of the compromised motor functions up-regulated the UPR stress sensors: IRE-1α/Bip/CHOP, oxidative stress along with the pro-inflammatory cytokines: IL1β/IFNγ/TNFα and IL-6. These inimical factors combined, aids the persistence of the disease in MPTP intoxicated mice. Supplementation with SNC-80 significantly improved motor functions via down-regulation of the UPR stress sensors and inflammatory cytokines. Additionally, SNC-80 could upregulate Nrf-2 and Heme oxygenase-1 (HO-1) protein expression indicating their involvement in SNC-80's potential anti-oxidant function. There was also a significant reduction in protein carbonyl content indicating the positive role of SNC-80 in dampening MPTP induced oxidative stress. Concomitantly, L-DOPA also demonstrated an enhanced effect towards improvement of motor functions but did not suppress the UPR and inflammatory responses caused due to MPTP intoxication. Hence, these results suggest that SNC-80 could hold a pivotal role in replenishing motor functions essentially via regulating UPR and inflammation.
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Affiliation(s)
- Erfath Thanjeem Begum M
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Dwaipayan Sen
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India.
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Bex1 attenuates neuronal apoptosis in rat intracerebral hemorrhage model. Pathol Res Pract 2018; 214:527-535. [DOI: 10.1016/j.prp.2018.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 01/27/2018] [Accepted: 02/14/2018] [Indexed: 12/15/2022]
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Melatonin: A Versatile Protector against Oxidative DNA Damage. Molecules 2018; 23:molecules23030530. [PMID: 29495460 PMCID: PMC6017920 DOI: 10.3390/molecules23030530] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 02/13/2018] [Accepted: 02/22/2018] [Indexed: 12/15/2022] Open
Abstract
Oxidative damage to DNA has important implications for human health and has been identified as a key factor in the onset and development of numerous diseases. Thus, it is evident that preventing DNA from oxidative damage is crucial for humans and for any living organism. Melatonin is an astonishingly versatile molecule in this context. It can offer both direct and indirect protection against a wide variety of damaging agents and through multiple pathways, which may (or may not) take place simultaneously. They include direct antioxidative protection, which is mediated by melatonin's free radical scavenging activity, and also indirect ways of action. The latter include, at least: (i) inhibition of metal-induced DNA damage; (ii) protection against non-radical triggers of oxidative DNA damage; (iii) continuous protection after being metabolized; (iv) activation of antioxidative enzymes; (v) inhibition of pro-oxidative enzymes; and (vi) boosting of the DNA repair machinery. The rather unique capability of melatonin to exhibit multiple neutralizing actions against diverse threatening factors, together with its low toxicity and its ability to cross biological barriers, are all significant to its efficiency for preventing oxidative damage to DNA.
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Hennig P, Garstkiewicz M, Grossi S, Di Filippo M, French LE, Beer HD. The Crosstalk between Nrf2 and Inflammasomes. Int J Mol Sci 2018; 19:ijms19020562. [PMID: 29438305 PMCID: PMC5855784 DOI: 10.3390/ijms19020562] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 02/08/2018] [Accepted: 02/09/2018] [Indexed: 01/03/2023] Open
Abstract
The Nrf2 (nuclear factor E2-related factor or nuclear factor (erythroid-derived 2)-like 2) transcription factor is a key player in cytoprotection and activated in stress conditions caused by reactive oxygen species (ROS) or electrophiles. Inflammasomes represent central regulators of inflammation. Upon detection of various stress factors, assembly of the inflamasome protein complex results in activation and secretion of proinflammatory cytokines. In addition, inflammasome activation causes pyroptosis, a lytic form of cell death, which supports inflammation. There is growing evidence of a crosstalk between the Nrf2 and inflammasome pathways at different levels. For example, Nrf2 activating compounds inhibit inflammasomes and consequently inflammation. This review summarizes what is known about the complex and predominantly antagonistic relationship of both stress-activated pathways.
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Affiliation(s)
- Paulina Hennig
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, F30, CH-8091 Zurich, Switzerland.
| | - Martha Garstkiewicz
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, F30, CH-8091 Zurich, Switzerland.
| | - Serena Grossi
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, F30, CH-8091 Zurich, Switzerland.
| | - Michela Di Filippo
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, F30, CH-8091 Zurich, Switzerland.
| | - Lars E French
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, F30, CH-8091 Zurich, Switzerland.
- Faculty of Medicine, University of Zurich, CH-8091 Zurich, Switzerland.
| | - Hans-Dietmar Beer
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, F30, CH-8091 Zurich, Switzerland.
- Faculty of Medicine, University of Zurich, CH-8091 Zurich, Switzerland.
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