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Yang G, Zhou W, Zhang M, Zhong X, Qiu H, Xiang Y, Zhang Z, Li P, Wang D. Induced oxidative stress and apoptosis by 1-bromopropane in SH-SY5Y cells correlates with inhibition of Nrf2 function. Drug Chem Toxicol 2024; 47:756-766. [PMID: 38047545 DOI: 10.1080/01480545.2023.2288795] [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: 04/12/2023] [Revised: 09/01/2023] [Accepted: 11/13/2023] [Indexed: 12/05/2023]
Abstract
In this study, we established SH-SY5Y human neuroblastoma cells as an in vitro model to investigate whether oxidative stress and the nuclear erythroid-2 related factor 2 (Nrf2) signaling pathway are associated with 1-bromopropane (1-BP) -induced nerve cell injury. We identified that 1-BP exhibited neurotoxicity mainly through oxidant-based processes in SH-SY5Y cells, as reactive oxygen species, malondialdehyde levels, and 8-hydroxy-2' -deoxyguanosine significantly increased, while superoxide dismutase activity decreased. Furthermore, Nrf2 translocation from the cytosol to the nucleus was inhibited, as was downstream protein expression of the Nrf2-regulated genes HO-1 and Bcl-2. Activation of caspase-9 and -3 increased, and apoptosis was observed. Vitamin C alleviated 1-BP-induced apoptosis by decreasing oxidative stress and activating the Nrf2 signaling pathway. Knockdown of Nrf2 in SH-SY5Y cells increased 1-BP-induced reactive oxygen species production and cell apoptosis, and inhibited HO-1 and Bcl-2 protein expression, while overexpression of Nrf2 alleviated these processes. These findings suggest that 1-BP-induced oxidative stress and apoptosis in SH-SY5Y cells are associated with Nrf2 function inhibition.
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Affiliation(s)
- Guangtao Yang
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Wei Zhou
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Minhong Zhang
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Xiaohuan Zhong
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Haili Qiu
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Yingping Xiang
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Zhimin Zhang
- Department of Medical Laboratory, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Peimao Li
- Department of Medical Laboratory, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Dianpeng Wang
- Department of Medical Laboratory, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
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Nunes YC, Mendes NM, Pereira de Lima E, Chehadi AC, Lamas CB, Haber JFS, dos Santos Bueno M, Araújo AC, Catharin VCS, Detregiachi CRP, Laurindo LF, Tanaka M, Barbalho SM, Marin MJS. Curcumin: A Golden Approach to Healthy Aging: A Systematic Review of the Evidence. Nutrients 2024; 16:2721. [PMID: 39203857 PMCID: PMC11357524 DOI: 10.3390/nu16162721] [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: 07/12/2024] [Revised: 08/09/2024] [Accepted: 08/12/2024] [Indexed: 09/03/2024] Open
Abstract
Aging-related disorders pose significant challenges due to their complex interplay of physiological and metabolic factors, including inflammation, oxidative stress, and mitochondrial dysfunction. Curcumin, a natural compound with potent antioxidant and anti-inflammatory properties, has emerged as a promising candidate for mitigating these age-related processes. However, gaps in understanding the precise mechanisms of curcumin's effects and the optimal dosages for different conditions necessitate further investigation. This systematic review synthesizes current evidence on curcumin's potential in addressing age-related disorders, emphasizing its impact on cognitive function, neurodegeneration, and muscle health in older adults. By evaluating the safety, efficacy, and mechanisms of action of curcumin supplementation, this review aims to provide insights into its therapeutic potential for promoting healthy aging. A systematic search across three databases using specific keywords yielded 2256 documents, leading to the selection of 15 clinical trials for synthesis. Here, we highlight the promising potential of curcumin as a multifaceted therapeutic agent in combating age-related disorders. The findings of this review suggest that curcumin could offer a natural and effective approach to enhancing the quality of life of aging individuals. Further research and well-designed clinical trials are essential to validate these findings and optimize the use of curcumin in personalized medicine approaches for age-related conditions.
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Affiliation(s)
- Yandra Cervelim Nunes
- Faculdade de Medicina de Marília (FAMEMA), Marília 17519-030, SP, Brazil; (Y.C.N.); (L.F.L.)
| | - Nathalia M. Mendes
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (N.M.M.); (E.P.d.L.); (A.C.C.); (J.F.S.H.); (M.d.S.B.); (A.C.A.)
| | - Enzo Pereira de Lima
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (N.M.M.); (E.P.d.L.); (A.C.C.); (J.F.S.H.); (M.d.S.B.); (A.C.A.)
| | - Amanda Chabrour Chehadi
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (N.M.M.); (E.P.d.L.); (A.C.C.); (J.F.S.H.); (M.d.S.B.); (A.C.A.)
| | - Caroline Barbalho Lamas
- Department of Gerontology, School of Gerontology, Universidade Federal de São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil;
| | - Jesselina F. S. Haber
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (N.M.M.); (E.P.d.L.); (A.C.C.); (J.F.S.H.); (M.d.S.B.); (A.C.A.)
| | - Manoela dos Santos Bueno
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (N.M.M.); (E.P.d.L.); (A.C.C.); (J.F.S.H.); (M.d.S.B.); (A.C.A.)
| | - Adriano Cressoni Araújo
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (N.M.M.); (E.P.d.L.); (A.C.C.); (J.F.S.H.); (M.d.S.B.); (A.C.A.)
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (V.C.S.C.); (C.R.P.D.)
| | - Vitor C. Strozze Catharin
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (V.C.S.C.); (C.R.P.D.)
| | - Claudia Rucco P. Detregiachi
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (V.C.S.C.); (C.R.P.D.)
| | - Lucas Fornari Laurindo
- Faculdade de Medicina de Marília (FAMEMA), Marília 17519-030, SP, Brazil; (Y.C.N.); (L.F.L.)
| | - Masaru Tanaka
- Danube Neuroscience Research Laboratory, HUN-REN-SZTE Neuroscience Research Group, Hungarian Research Network, University of Szeged (HUN-REN-SZTE), Tisza Lajos krt. 113, H-6725 Szeged, Hungary
| | - Sandra Maria Barbalho
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (N.M.M.); (E.P.d.L.); (A.C.C.); (J.F.S.H.); (M.d.S.B.); (A.C.A.)
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marília (UNIMAR), Marília 17525-902, SP, Brazil; (V.C.S.C.); (C.R.P.D.)
- Department of Biochemistry and Nutrition, School of Food and Technology of Marília (FATEC), Marília 17500-000, SP, Brazil
- Research Coordination, Hospital Beneficente (HBU), University of Marília (UNIMAR), Marília 17525-160, SP, Brazil
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Razali NSC, Lam KW, Rajab NF, Jamal ARA, Kamaludin NF, Chan KM. Curcumin piperidone derivatives induce caspase-dependent apoptosis and suppress miRNA-21 expression in LN-18 human glioblastoma cells. Genes Environ 2024; 46:4. [PMID: 38303058 PMCID: PMC10832295 DOI: 10.1186/s41021-023-00297-y] [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: 07/22/2023] [Accepted: 12/27/2023] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Previously, we have reported on the two curcuminoid analogues with piperidone derivatives, namely FLDP-5 and FLDP-8 have more potent anti-proliferative and anti-migration effects than curcumin. In this study, we further investigated the mode of cell death and the mechanism involved in the cell death process induced by these analogues on human glioblastoma LN-18 cells. RESULTS The FLDP-5 and FLDP-8 curcuminoid analogues induced LN-18 cell death through apoptosis in a concentration-dependent manner following 24 h of treatment. These analogues induced apoptosis in LN-18 cells through significant loss of mitochondrial mass and mitochondrial membrane potential (MMP) as early as 1-hour of treatment. Interestingly, N-acetyl-l-cysteine (NAC) pretreatment did not abolish the apoptosis induced by these analogues, further confirming the cell death process is independent of ROS. However, the apoptosis induced by the analogues is caspases-dependent, whereby pan-caspase pretreatment inhibited the curcuminoid analogues-induced apoptosis. The apoptotic cell death progressed with the activation of both caspase-8 and caspase-9, which eventually led to the activation of caspase-3, as confirmed by immunoblotting. Moreover, the existing over-expression of miRNA-21 in LN-18 cells was suppressed following treatment with both analogues, which suggested the down-regulation of the miRNA-21 facilitates the cell death process. CONCLUSION The FLDP-5 and FLDP-8 curcuminoid analogues downregulate the miRNA-21 expression and induce extrinsic and intrinsic apoptotic pathways in LN-18 cells.
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Affiliation(s)
- Nur Syahirah Che Razali
- Center for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, 50300, Malaysia
| | - Kok Wai Lam
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, 50300, Malaysia
| | - Nor Fadilah Rajab
- Center for Health Ageing and Wellness Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, 50300, Malaysia
| | - A Rahman A Jamal
- UKM Medical Molecular Biology Institute, UKM Medical Centre, Cheras, 56000, Malaysia
| | - Nurul Farahana Kamaludin
- Center for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, 50300, Malaysia
| | - Kok Meng Chan
- Center for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, 50300, Malaysia.
- Product Stewardship and Toxicology, Group Health, Safety and Environment (GHSE), Petroliam Nasional Berhad (PETRONAS), Kuala Lumpur, 50088, Malaysia.
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Zhang Y, Li Z, Huang Y, Xu Y, Zou B. Nanotechnology and curcumin: a novel and promising approach in digestive cancer therapy. Nanomedicine (Lond) 2023; 18:2081-2099. [PMID: 38078442 DOI: 10.2217/nnm-2023-0213] [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] [Indexed: 01/19/2024] Open
Abstract
This study reviews the application of nanotechnology and curcumin, a polyphenol extracted from turmeric, in treating digestive cancers, one of the most common types of malignancies worldwide. Despite curcumin's potential for inhibiting tumor growth, its clinical application is hindered by issues such as poor solubility and bioavailability. Nanomedicine, with its unique ability to enhance drug delivery and reduce toxicity, offers a solution to these limitations. The paper focuses on the development of nanoformulations of curcumin, such as nanoparticles and liposomes, that improve its bioavailability and efficacy in treating digestive cancers, including liver and colorectal cancers. The study serves as a valuable reference for future research and development in this promising therapeutic approach.
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Affiliation(s)
- Yi Zhang
- Division of Thoracic Oncology, Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Zheng Li
- Division of Thoracic Oncology, Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Ying Huang
- College of Management, Sichuan Agricultural University, Chengdu, 611130, PR China
| | - Yong Xu
- Division of Thoracic Oncology, Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Bingwen Zou
- Division of Thoracic Oncology, Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, PR China
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Zhang Q, Wang S, Wang F, Guo M, Xu S. TBBPA induces inflammation, apoptosis, and necrosis of skeletal muscle in mice through the ROS/Nrf2/TNF-α signaling pathway. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120745. [PMID: 36442820 DOI: 10.1016/j.envpol.2022.120745] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/05/2022] [Accepted: 11/24/2022] [Indexed: 06/16/2023]
Abstract
Tetrabromobisphenol A (TBBPA) is present in large quantities in the environment due to its widespread use. And TBBPA is capable of accumulating in animals, entering the ecological chain and causing widespread damage to organisms. TBBPA is capable of causing the onset of oxidative stress, which induces tissue damage and cell death, which in turn affects the physiological function of tissues. Skeletal muscle is a critical tissue for maintaining growth, movement, and health in the body. However, the mechanism of TBBPA-induced skeletal muscle injury remains unclear. In this study, we constructed mouse skeletal muscle models (10, 20, and 40 mg/kg TBBPA) and mouse myoblasts (C2C12) cell models (2,4, and 8 μg/L TBBPA) at different concentrations. The results of this experiment showed that under TBBPA treatment, the levels of reactive oxygen species (ROS) and Malondialdehyde (MDA) in mouse skeletal and C2C12 cells were increased significantly, but the activities of some antioxidant enzymes decreased. TBBPA can inhibit Nuclear factor E2-related factor 2 (Nrf2) entry into the nucleus, thus affecting the expression of the Nrf2 downstream factors. With the increase of TBBPA concentration, the expression levels of inflammatory factors were significantly increased, while the anti-apoptotic factors were significantly decreased. The expression of pro-apoptotic factors increased in a dose-dependent manner. Programmed necrosis-related factors were also significantly elevated. Our results suggest that TBBPA induces oxidative stress and inflammation, apoptosis, and necrosis in the skeletal muscle of mice by regulating Nrf2/ROS/TNF-α signaling pathway.
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Affiliation(s)
- Qirui Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Shengchen Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Fuhan Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Mengyao Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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Yasin NAE, El-Naggar ME, Ahmed ZSO, Galal MK, Rashad MM, Youssef AM, Elleithy EMM. Exposure to Polystyrene nanoparticles induces liver damage in rat via induction of oxidative stress and hepatocyte apoptosis. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 94:103911. [PMID: 35724857 DOI: 10.1016/j.etap.2022.103911] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 06/04/2022] [Accepted: 06/14/2022] [Indexed: 05/26/2023]
Abstract
Plastic products are widely used in different applications. Thus, exposure of human and other organisms to these products may affect their biological system. The current study was conducted to investigate the potential deleterious effect of Polysterene nanoparticles (PS-NPs) on the liver and to state the cellular and molecular mechanisms associated with exposure to PS-NPs.30 male rats were divided randomly and equally into 3 groups; control (distilled water), low dose (3 mg/kg/day) and high dose (10 mg/kg/day) exposed group via oral gavage for 5 successive weeks. PS-NPs caused elevation in ALT, AST and MDA, upregulation of apoptosis-related genes and significant decrease in GSH and mRNA expression for antioxidant-related genes (Nrf-2 and GPx). Moreover, alterations in hepatic tissue architecture and positive caspase-3 expression was noticed in a dose- dependent manner. Collectively, PS-NPs can induce hepatoxicity in rats in a dose dependent manner, so the health risk of PS-NPs should not be ignored.
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Affiliation(s)
- Noha A E Yasin
- Cytology and Histology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Mehrez E El-Naggar
- Textile Research Division, National Research Centre, Dokki, Cairo, Egypt.
| | - Zainab Sabry Othman Ahmed
- Cytology and Histology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt; Faculty of Veterinary Medicine, King Salman International University, Ras Sudr, South Sinai, Egypt.
| | - Mona K Galal
- Biochemistry and Chemistry of Nutrition Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Maha M Rashad
- Biochemistry and Chemistry of Nutrition Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Ahmed M Youssef
- Packaging and packing materials Department, National Research Center, Dokki, Cairo, Egypt.
| | - Ebtihal M M Elleithy
- Cytology and Histology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
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Ghafouri-Fard S, Shoorei H, Bahroudi Z, Hussen BM, Talebi SF, Taheri M, Ayatollahi SA. Nrf2-Related Therapeutic Effects of Curcumin in Different Disorders. Biomolecules 2022; 12:82. [PMID: 35053230 PMCID: PMC8773597 DOI: 10.3390/biom12010082] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/18/2021] [Accepted: 12/25/2021] [Indexed: 12/12/2022] Open
Abstract
Curcumin is a natural polyphenol with antioxidant, antibacterial, anti-cancer, and anti-inflammation effects. This substance has been shown to affect the activity of Nrf2 signaling, a pathway that is activated in response to stress and decreases levels of reactive oxygen species and electrophilic substances. Nrf2-related effects of curcumin have been investigated in different contexts, including gastrointestinal disorders, ischemia-reperfusion injury, diabetes mellitus, nervous system diseases, renal diseases, pulmonary diseases, cardiovascular diseases as well as cancers. In the current review, we discuss the Nrf2-mediated therapeutic effects of curcumin in these conditions. The data reviewed in the current manuscript indicates curcumin as a potential activator of Nrf2 and a therapeutic substance for the protection of cells in several pathological conditions.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran 16666-63111, Iran;
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand 9717853577, Iran;
| | - Zahra Bahroudi
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran;
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil 44001, Kurdistan Region, Iraq;
| | - Seyedeh Fahimeh Talebi
- Department of Pharmacology, College of Pharmacy, Birjand University of Medical Sciences, Birjand 9717853577, Iran;
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, 07743 Jena, Germany
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Shahcheraghi SH, Salemi F, Peirovi N, Ayatollahi J, Alam W, Khan H, Saso L. Nrf2 Regulation by Curcumin: Molecular Aspects for Therapeutic Prospects. Molecules 2021; 27:167. [PMID: 35011412 PMCID: PMC8746993 DOI: 10.3390/molecules27010167] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/10/2021] [Accepted: 12/14/2021] [Indexed: 12/12/2022] Open
Abstract
Nuclear factor erythroid 2 p45-related factor (2Nrf2) is an essential leucine zipper protein (bZIP) that is primarily located in the cytoplasm under physiological conditions. Nrf2 principally modulates endogenous defense in response to oxidative stress in the brain.In this regard, Nrf2 translocates into the nucleus and heterodimerizes with the tiny Maf or Jun proteins. It then attaches to certain DNA locations in the nucleus, such as electrophile response elements (EpRE) or antioxidant response elements (ARE), to start the transcription of cytoprotective genes. Many neoplasms have been shown to have over activated Nrf2, strongly suggesting that it is responsible for tumors with a poor prognosis. Exactly like curcumin, Zinc-curcumin Zn (II)-curc compound has been shown to induce Nrf2 activation. In the cancer cell lines analyzed, Zinc-curcumin Zn (II)-curc compound can also display anticancer effects via diverse molecular mechanisms, including markedly increasing heme oxygenase-1 (HO-1) p62/SQSTM1 and the Nrf2 protein levels along with its targets. It also strikingly decreases the levels of Nrf2 inhibitor, Kelch-like ECH-associated protein 1 (Keap1) protein.As a result, the crosstalk between p62/SQSTM1 and Nrf2 could be used to improve cancer patient response to treatments. The interconnected anti-inflammatory and antioxidative properties of curcumin resulted from its modulatory effects on Nrf2 signaling pathway have been shown to improve insulin resistance. Curcumin exerts its anti-inflammatory impact through suppressing metabolic reactions and proteins such as Keap1 that provoke inflammation and oxidation. A rational amount of curcumin-activated antioxidant Nrf2 HO-1 and Nrf2-Keap1 pathways and upregulated the modifier subunit of glutamate-cysteine ligase involved in the production of the intracellular antioxidant glutathione. Enhanced expression of glutamate-cysteine ligase, a modifier subunit (GLCM), inhibited transcription of glutamate-cysteine ligase, a catalytic subunit (GCLC). A variety of in vivo, in vitro and clinical studies has been done so far to confirm the protective role of curcumin via Nrf2 regulation. This manuscript is designed to provide a comprehensive review on the molecular aspects of curcumin and its derivatives/analogs via regulation of Nrf2 regulation.
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Affiliation(s)
- Seyed Hossein Shahcheraghi
- Infectious Diseases Research Center, Shahid Sadoughi Hospital, Shahid Sadoughi University of Medical Sciences, Yazd 8916978477, Iran; (S.H.S.); (J.A.)
| | - Fateme Salemi
- School of Medicine, Islamic Azad University of Medical Sciences, Yazd 19395/1495, Iran;
| | - Niloufar Peirovi
- School of Medicine, Tehran University of Medical Sciences, Tehran 1417614411, Iran;
| | - Jamshid Ayatollahi
- Infectious Diseases Research Center, Shahid Sadoughi Hospital, Shahid Sadoughi University of Medical Sciences, Yazd 8916978477, Iran; (S.H.S.); (J.A.)
| | - Waqas Alam
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan;
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan;
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Sapienza University, 00185 Rome, Italy;
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Haryuna TSH, Amellya D, Munir D, Zubaidah TSH. The Benefits of Curcuminoid to Expression Nuclear Factor Erythroid 2 Related Factor 2 (NRF2) and Signal to Noise Ratio (SNR) Value in the Noise Exposed Organ of Corti of Rattus Norvegicus. Rep Biochem Mol Biol 2021; 10:373-379. [PMID: 34981013 PMCID: PMC8718775 DOI: 10.52547/rbmb.10.3.373] [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: 02/17/2021] [Accepted: 04/06/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Noise-induced hearing loss (NIHL) can cause damage to the cochlea. Curcumin and nuclear factor erythroid 2-related factor 2 (NRF2) are transcription activators that play a crucial role in defence mechanisms against oxidative stress. The aim of this study was to determine the effect of curcuminoid administration on NRF2 expression, in the organ of Corti of cochlea of Rattus norvegicus that were exposed to noise, from the results of the distortion product otoacoustic emission (DPOAE) examination. METHODS We divided 36 rats into six groups including Group 1 (control); Group 2 (noise exposure without curcuminoid administration); Group 3 (noise exposure+curcuminoid dose 100 mg/day for four days); Group 4 (noise exposure+curcuminoid dose 200 mg/day for four days); Group 5 (curcuminoid dose of 100 mg/day for 14 days followed by two days of noise exposure); Group 6 (curcuminoid dose 200 mg/day for 14 days followed by two days of noise exposure). RESULTS Following noise exposure in rats, there was an effect/correlation between NRF2 expression, the SNR values obtained from DPOAE and curcuminoid administration. CONCLUSION There was a correlation between curcuminoid administration, NRF2 expression and DPOAE treatment. Following noise exposure in rats (Rattus norvegicus), SNR values obtained from DPOAE showed improved cochlear function.
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Affiliation(s)
- Tengku Siti Hajar Haryuna
- Department of Otorhinolaryngology, Faculty of medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, 20155, Indonesia.
| | - Diana Amellya
- Department of Otorhinolaryngology, Faculty of medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, 20155, Indonesia.
| | - Delfitri Munir
- Department of Otorhinolaryngology, Faculty of medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, 20155, Indonesia.
| | - Tengku Siti Harilza Zubaidah
- Department of Ophtalmology, Faculty of medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, 20155, Indonesia.
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Almalki Z, Algregri M, Alhosin M, Alkhaled M, Damiati S, Zamzami MA. In vitro cytotoxicity of curcuminoids against head and neck cancer HNO97 cell line. BRAZ J BIOL 2021; 83:e248708. [PMID: 34468533 DOI: 10.1590/1519-6984.248708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/17/2021] [Indexed: 11/21/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is a malignant tumour of Head and Neck Cancer (HNC). The recent therapeutic approaches used to treat cancer have adverse side effects. The natural agents exhibiting anticancer activities are generally considered to have a robust therapeutic potential. Curcuminoids, one of the major active compounds of the turmeric herb, are used as a therapeutic agent for several diseases including cancer. In this study, the cytotoxicity of curcuminoids was investigated against OSCC cell line HNO97. Our data showed that curcuminoids significantly inhibits the proliferation of HNO97 in a time and dose-dependent manner (IC50=35 μM). Cell cycle analysis demonstrated that curcuminoids increased the percentage of G2/M phase cell populations in the treated groups. Treating HNO97 cells with curcuminoids led to cell shrinking and increased detached cells, which are the typical appearance of apoptotic cells. Moreover, flow cytometry analysis revealed that curcuminoids significantly induced apoptosis in a time-dependent manner. Furthermore, as a response to curcuminoids treatment, comet tails were formed in cell nuclei due to the induction of DNA damage. Curcuminoids treatment reduced the colony formation capacity of HNO97 cells and induced morphological changes. Overall, these findings demonstrate that curcuminoids can in vitro inhibit HNC proliferation and metastasis and induce apoptosis.
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Affiliation(s)
- Z Almalki
- King Abdulaziz University, Faculty of Science, Department of Biochemistry, Jeddah, Saudi Arabia
| | - M Algregri
- King Abdulaziz University, King Fahad Medical Research Canter, Jeddah, Saudi Arabia
| | - M Alhosin
- King Abdulaziz University, Faculty of Science, Department of Biochemistry, Jeddah, Saudi Arabia
| | - M Alkhaled
- University of Jeddah, Faculty of Science, Department of Biological Sciences, Jeddah, Saudi Arabia
| | - S Damiati
- King Abdulaziz University, Faculty of Science, Department of Biochemistry, Jeddah, Saudi Arabia
| | - M A Zamzami
- King Abdulaziz University, Faculty of Science, Department of Biochemistry, Jeddah, Saudi Arabia
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11
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Exposure to footshock stress downregulates antioxidant genes and increases neuronal apoptosis in an Aβ(1-42) rat model of Alzheimer's disease. Neurochem Int 2021; 150:105170. [PMID: 34419526 DOI: 10.1016/j.neuint.2021.105170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 12/21/2022]
Abstract
Post-traumatic stress disorder (PTSD) is a neuropsychiatric disorder that develops from exposure to trauma, mostly when normal psychological mechanisms fail. Studies have shown that people who have PTSD are susceptible to developing dementia, mostly Alzheimer's disease (AD), suggesting common underlying risk factors in the comorbidity. However, data elucidating links between these conditions is scarce. Here we show that footshock stress exacerbates AD-like pathology. To induce a trauma-like condition, the rats were exposed to multiple intense footshocks followed by a single reminder. This was followed by bilateral intrahippocampal lesions with amyloid-beta (Aβ) (1-42), to model AD-like pathology. We found that footshocks increased anxiety behavior and impaired fear memory extinction in Aβ(1-42) lesioned rats. We also found a reduced expression of nuclear factor erythroid 2-related factor 2 (Nrf2), NAD (P) H: quinone oxidoreductase 1 (NQO1), heme oxygenase-1 (HO-1), and an increased expression of Kelch-like ECH-associated protein 1 (Keap1) in the amygdala and hippocampus. Furthermore, oxidative stress level was sustained, which was associated with increased apoptosis in the amygdala and hippocampus. Our finding suggests that AD-like pathology can induce oxidative changes in the amygdala and hippocampus, which can be exaggerated by footshock stress.
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12
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Benameur T, Soleti R, Panaro MA, La Torre ME, Monda V, Messina G, Porro C. Curcumin as Prospective Anti-Aging Natural Compound: Focus on Brain. Molecules 2021; 26:molecules26164794. [PMID: 34443381 PMCID: PMC8398038 DOI: 10.3390/molecules26164794] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 12/12/2022] Open
Abstract
The nutrients and their potential benefits are a new field of study in modern medicine for their positive impact on health. Curcumin, the yellow polyphenolic compound extracted from Curcuma longa species, is widely used in traditional Ayurvedic medicine to prevent and contrast many diseases, considering its antioxidant, immunomodulatory, anti-inflammatory, anti-microbial, cardio-protective, nephron-protective, hepato-protective, anti-neoplastic, and anti-rheumatic proprieties. In recent years, the investigations of curcumin have been focused on its application to aging and age-associated diseases. Aging is a physiological process in which there is a decreasing of cellular function due to internal or external stimuli. Oxidative stress is one of the most important causes of aging and age-related diseases. Moreover, many age-related disorders such as cancer, neuroinflammation, and infections are due to a low-grade chronic systemic inflammation. Curcumin acting on different proteins is able to contrast both oxidative stress than inflammation. In the brain, curcumin is able to modulate inflammation induced by microglia. Finally in brain tumors curcumin is able to reduce tumor growth by inhibition of telomerase activity. This review emphasizes the anti-aging role of curcumin focusing on its mechanism to counteract aging in the brain. Moreover, new formulations to increase the bioavailability of curcumin are discussed.
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Affiliation(s)
- Tarek Benameur
- Department of Biomedical Sciences, College of Medicine, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Raffaella Soleti
- Univ Angers, Université de Nantes, Inserm, CRCINA, SFR ICAT, F-49800 Angers, France;
| | - Maria Antonietta Panaro
- Biotechnologies and Biopharmaceutics, Department of Biosciences, University of Bari, 70125 Bari, Italy;
| | - Maria Ester La Torre
- Department of Clinical and Experimental Medicine, University of Foggia, 71121 Foggia, Italy; (M.E.L.T.); (V.M.); (G.M.)
| | - Vincenzo Monda
- Department of Clinical and Experimental Medicine, University of Foggia, 71121 Foggia, Italy; (M.E.L.T.); (V.M.); (G.M.)
- Unit of Dietetic and Sport Medicine, Section of Human Physiology, Department of Experimental Medicine, Luigi Vanvitelli University of Campania, 81100 Naples, Italy
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, 71121 Foggia, Italy; (M.E.L.T.); (V.M.); (G.M.)
| | - Chiara Porro
- Department of Clinical and Experimental Medicine, University of Foggia, 71121 Foggia, Italy; (M.E.L.T.); (V.M.); (G.M.)
- Correspondence:
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13
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Bashir DW, Rashad MM, Ahmed YH, Drweesh EA, Elzahany EAM, Abou-El-Sherbini KS, El-Leithy EMM. The ameliorative effect of nanoselenium on histopathological and biochemical alterations induced by melamine toxicity on the brain of adult male albino rats. Neurotoxicology 2021; 86:37-51. [PMID: 34216684 DOI: 10.1016/j.neuro.2021.06.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/16/2021] [Accepted: 06/25/2021] [Indexed: 01/01/2023]
Abstract
Melamine is a chemical substance used as a food adulterant because of its high nitrogen content; it is known to induce neurotoxicity, thereby adversely affecting the central nervous system. The biocompatibility, bioavailability, lower toxicity, and the large surface area of nanosized selenium relative to its other forms indicate that selenium nanoparticles (SeNPs) have a potential ameliorative effect against melamine-induced neurotoxicity. In this study, we tested this hypothesis using 40 adult male albino rats that were randomly assigned into four groups (n = 10 per group): group I rats served as the untreated negative controls and were fed with standard diet and distilled water; group II rats were orally treated with melamine (300 mg/kg body weight/d); group III rats orally received melamine (300 mg/kg body weight/d) and SeNPs (2 mg/kg body weight/d); and group IV rats received SeNPs only (2 mg/kg body weight/d) for 28 days. Blood and brain samples were collected from all rats and processed for biochemical, histopathological, and immunohistochemical investigations. SeNPs were encapsulated in starch as a natural stabilizer and a size-controlling agent (SeNP@starch). The prepared SeNPs were characterized using different techniques. Inductively coupled plasma-optical emission spectrometry (ICP-OES) indicated that the percentage of selenium loaded in starch was 1.888 %. Powder x-ray diffractometer (XRD) was used to investigate the crystalline structure of the Se-NP@starch, to be tubular and composed of amorphous starch as well as metallic selenium. Thermogravimetric analysis confirmed the thermal stability of the product and determined the interactions among the different components. Transmission electron microscope demonstrated the spherical shape of SeNPs and their dispersion into starch surface as well as evaluating their size in nanoscale (range 20-140 nm). Our results revealed that the melamine- exposed rats had significantly elevated in malondialdehyde levels, significantly reduced in total antioxidant capacity, down-regulated expression of the antioxidant related genes Nrf2 (nuclear factor erythroid 2-related factor 2) and GPx (glutathione peroxidase), as well as up-regulated expression of the apoptosis-related gene Bax (B-cell lymphoma 2-associated X protein), with down regulation of Bcl-2 (B-cell lymphoma 2). Histopathological examination exhibited several alterations in the cerebrum, cerebellum, and hippocampus of the treated rats compared with the controls. Neuronal degeneration, vacuolation of the neuropils, and pericellular and perivascular spaces were observed. In addition, the pyramidal and granular cell layers of the hippocampus and cerebellum, respectively, were found to have significantly reduced thickness. Furthermore, a significant decrease in the percentage area of the glial fibrillary acidic protein and a significant increase in the percentage area of caspase-3 were noted. On the other hand, co-treatment with SeNPs partially ameliorated these alterations. A significant reduction in malondialdehyde levels; a non- significant elevation in total antioxidant capacity; up-regulation, upregulation of Nrf2, GPx, and Bcl-2 and downregulation of Bax were recorded. Neuronal degeneration, vacuolation of neuropils, and pericellular spaces were reduced. The pyramidal and granular cell layers restored their normal thickness. The percentage area of the glial fibrillary acidic protein significantly increased, whereas that of caspase-3 significantly decreased. In conclusion, SeNPs have an ameliorative effect against melamine-induced neurotoxicity in albino rats.
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Affiliation(s)
- Dina W Bashir
- Cytology and Histology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Maha M Rashad
- Biochemistry and Chemistry of Nutrition Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Yasmine H Ahmed
- Cytology and Histology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Elsayed A Drweesh
- Department of Inorganic Chemistry, National Research Centre, Giza, Egypt
| | - Eman A M Elzahany
- Department of Inorganic Chemistry, National Research Centre, Giza, Egypt
| | | | - Ebtihal M M El-Leithy
- Cytology and Histology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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14
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Curcumin sensitizes Epstein-Barr-immortalized lymphoblastoid cell lines to inorganic arsenic toxicity. Exp Ther Med 2021; 22:872. [PMID: 34194550 DOI: 10.3892/etm.2021.10304] [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: 09/24/2020] [Accepted: 02/23/2021] [Indexed: 11/05/2022] Open
Abstract
Chronic exposure to inorganic arsenic (iAs) through contaminated drinking water is an important health problem in certain countries. The use of phytochemicals such as curcumin has recently emerged as an alternative strategy for preventing cellular damage caused by iAs. The Epstein-Barr virus (EBV) affects ~90% of the population and experimental evidence suggested that curcumin mediates cytotoxicity against EBV-infected cells. Due to the potential for an interaction of these factors, the aim of the present study was to evaluate the effect of this phytochemical on iAs-related toxicity in EBV-infected cells. Two independent EBV-immortalized human lymphoblastoid cell lines (LCLs) were used as the model. The cell lines were first incubated with increasing concentrations of curcumin or iAs for 24 and 15 h, respectively, to determine the individual effects of each exposure on cell death. In the next experiment, cell cultures were pre-incubated with 5 µM curcumin for 9 h prior to treatment with 10 µM iAs for 15 h, followed by evaluation of cell death and the cell cycle profile via flow cytometry. The results indicated that individual treatment with either curcumin or iAs induced cell death in a concentration-dependent manner. Furthermore, curcumin pre-treatment enhanced iAs-induced cell death and promoted cell cycle arrest in G1 phase. Taken together, these results suggested that curcumin sensitizes EBV-positive LCLs to the cytotoxic effects of iAs.
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15
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Ashrafizadeh M, Ahmadi Z, Mohammadinejad R, Farkhondeh T, Samarghandian S. Curcumin Activates the Nrf2 Pathway and Induces Cellular Protection Against Oxidative Injury. Curr Mol Med 2021; 20:116-133. [PMID: 31622191 DOI: 10.2174/1566524019666191016150757] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/11/2019] [Accepted: 09/18/2019] [Indexed: 12/15/2022]
Abstract
Curcumin is a naturally occurring polyphenol that is isolated from the rhizome of Curcuma longa (turmeric). This medicinal compound has different biological activities, including antioxidant, antibacterial, antineoplastic, and anti-inflammatory. It also has therapeutic effects on neurodegenerative disorders, renal disorders, and diabetes mellitus. Curcumin is safe and well-tolerated at high concentrations without inducing toxicity. It seems that curcumin is capable of targeting the Nrf2 signaling pathway in protecting the cells against oxidative damage. Besides, this strategy is advantageous in cancer therapy. Accumulating data demonstrates that curcumin applies four distinct ways to stimulate the Nrf2 signaling pathway, including inhibition of Keap1, affecting the upstream mediators of Nrf2, influencing the expression of Nrf2 and target genes, and finally, improving the nuclear translocation of Nrf2. In the present review, the effects of curcumin on the Nrf2 signaling pathway to exert its therapeutic and biological activities has been discussed.
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Affiliation(s)
- Milad Ashrafizadeh
- Department of Basic Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Zahra Ahmadi
- Department of Basic Science, Veterinary Medicine Faculty, Shushtar University, Khuzestan, Iran
| | - Reza Mohammadinejad
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Tahereh Farkhondeh
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Saeed Samarghandian
- Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran
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16
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The Keap1-Nrf2 System: A Mediator between Oxidative Stress and Aging. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6635460. [PMID: 34012501 PMCID: PMC8106771 DOI: 10.1155/2021/6635460] [Citation(s) in RCA: 177] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 04/05/2021] [Accepted: 04/11/2021] [Indexed: 02/06/2023]
Abstract
Oxidative stress, a term that describes the imbalance between oxidants and antioxidants, leads to the disruption of redox signals and causes molecular damage. Increased oxidative stress from diverse sources has been implicated in most senescence-related diseases and in aging itself. The Kelch-like ECH-associated protein 1- (Keap1-) nuclear factor-erythroid 2-related factor 2 (Nrf2) system can be used to monitor oxidative stress; Keap1-Nrf2 is closely associated with aging and controls the transcription of multiple antioxidant enzymes. Simultaneously, Keap1-Nrf2 signaling is also modulated by a more complex regulatory network, including phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt), protein kinase C, and mitogen-activated protein kinase. This review presents more information on aging-related molecular mechanisms involving Keap1-Nrf2. Furthermore, we highlight several major signals involved in Nrf2 unbinding from Keap1, including cysteine modification of Keap1 and phosphorylation of Nrf2, PI3K/Akt/glycogen synthase kinase 3β, sequestosome 1, Bach1, and c-Myc. Additionally, we discuss the direct interaction between Keap1-Nrf2 and the mammalian target of rapamycin pathway. In summary, we focus on recent progress in research on the Keap1-Nrf2 system involving oxidative stress and aging, providing an empirical basis for the development of antiaging drugs.
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17
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Wang YL, Zhang Y, Liu T, Cui J. 3,5-Dimethoxy-4-hydroxy myricanol attenuated oxidative stress-induced toxicity on cardiomyoblast cells. Hum Exp Toxicol 2021; 40:1485-1495. [PMID: 33729028 DOI: 10.1177/0960327121997977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Myocardial ischemia is the main reason for ischemic heart diseases. Antioxidant treatment is considered as a possible approach to prevent myocardial ischemia injury, because oxidative stress is a key factor triggering it. This study was to investigate the protective effects of 3,5-dimethoxy-4-hydroxy myricanol (DHM) against oxidative stress-induced cytotoxicity on H9c2 cells and further explore its mechanisms. The oxidative stress and inflammatory response markers were detected by H2DCFDA fluorescent measurement, enzyme-linked immunosorbent assay (ELISA), real-time PCR and Western blot. Results showed DHM exerted inhibitory effects against H9c2 cell damage. Furthermore, DHM decreased oxidative stress in H9c2 cells through up-regulating protein expression of heme oxygenase-1 (HO-1) and nuclear factor (erythroid-derived 2)-like 2 (Nrf2). Moreover, DHM inhibited inflammatory responses through down-regulating the protein expression of mitogen-activated protein kinases (MAPKs) and nuclear factor kappa B (NF-κB). DHM exerted protective activities against oxidative stress-induced cell damage, at least through decreasing oxidative stress and inhibiting inflammatory responses, indicating that DHM have the potential to be developed as therapeutic agents for the treatment of myocardial ischemia.
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Affiliation(s)
- Y L Wang
- Department of Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Y Zhang
- Department of Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - T Liu
- Department of Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - J Cui
- Department of Internal Medicine, Tianjin Port Hospital, Tianjin, China
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18
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Yeung AWK, Tzvetkov NT, Georgieva MG, Ognyanov IV, Kordos K, Jóźwik A, Kühl T, Perry G, Petralia MC, Mazzon E, Atanasov AG. Reactive Oxygen Species and Their Impact in Neurodegenerative Diseases: Literature Landscape Analysis. Antioxid Redox Signal 2021; 34:402-420. [PMID: 32030995 DOI: 10.1089/ars.2019.7952] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Significance: The excessive production of reactive oxygen species (ROS) has been linked to neurodegenerative diseases (NDs), and, therefore, many scientific works were published on the impact of ROS on the development of prevalent NDs, such as Alzheimer's disease (AD) and Parkinson's disease (PD). Since quantitative and qualitative bibliometric analyses in this research area have not yet been done, the aim of this work is to explore the scientific literature implying ROS in NDs and to identify the major contributors, mainstream research themes, and topics on the rise. Recent Advances: Overall, 22,885 publications were identified and analyzed within the Web of Science (WoS) Core Collection electronic database (Clarivate Analytics, Philadelphia, PA). Most of the manuscripts were published in the 21st century. The publications were mainly related to the WoS categories Neurosciences and Biochemistry molecular biology. The United States is the major contributor, harboring the most productive authors and institutions. China, South Korea, and India have emerged as upcoming major contributors in the 2010s. Two most productive journals were Journal of Neurochemistry and Free Radical Biology and Medicine. Critical Issues: AD, PD, and amyotrophic lateral sclerosis were much more investigated than multiple sclerosis and Huntington's disease. Vitamin E and curcumin were frequently mentioned as potential antioxidant therapeutics, but their efficacy in treating NDs requires more clinical studies, since the existing evidence was mainly from in vitro experiments and in vivo animal studies. Future Directions: Mitochondrial dysfunction, autophagy, and nuclear factor erythroid 2-related factor 2 were among the author keywords with rising prevalence. Further research in these directions should advance our understanding of the mechanism and treatment of NDs. Antioxid. Redox Signal. 34, 402-420.
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Affiliation(s)
- Andy Wai Kan Yeung
- Oral and Maxillofacial Radiology, Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Nikolay T Tzvetkov
- Department of Biochemical Pharmacology and Drug Design, Institute of Molecular Biology "Roumen Tsanev," Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Maya G Georgieva
- Department of Biochemical Pharmacology and Drug Design, Institute of Molecular Biology "Roumen Tsanev," Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Iliyan V Ognyanov
- Department of Biochemical Pharmacology and Drug Design, Institute of Molecular Biology "Roumen Tsanev," Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Karolina Kordos
- The Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Magdalenka, Poland
| | - Artur Jóźwik
- The Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Magdalenka, Poland
| | - Toni Kühl
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, Bonn, Germany
| | - George Perry
- Department of Biology, The University of Texas at San Antonio, San Antonio, Texas, USA
| | | | | | - Atanas G Atanasov
- The Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Magdalenka, Poland.,Department of Pharmacognosy, University of Vienna, Vienna, Austria.,Institute of Neurobiology, Bulgarian Academy of Sciences, Sofia, Bulgaria.,Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
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19
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The role of curcumin in aging and senescence: Molecular mechanisms. Biomed Pharmacother 2021; 134:111119. [DOI: 10.1016/j.biopha.2020.111119] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/29/2020] [Accepted: 12/04/2020] [Indexed: 12/11/2022] Open
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20
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Yang G, Xiang Y, Zhou W, Zhong X, Zhang Y, Lin D, Huang X. 1-Bromopropane-induced apoptosis in OVCAR-3 cells via oxidative stress and inactivation of Nrf2. Toxicol Ind Health 2020; 37:59-67. [PMID: 33305700 DOI: 10.1177/0748233720979427] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The bromoalkane, 1-bromopropane (1-BP), may damage the reproductive system though oxidative stress, while the transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) plays an important role in regulating intracellular antioxidant levels against oxidative stress. This study explored the role of oxidative stress and the Nrf2 signaling pathway in mediating the reproductive toxicity of 1-BP using the ovarian carcinoma cell line OVCAR-3 as an in vitro model of the human ovary. OVCAR-3 cells were treated with 1, 5, 10 and 15 mM 1-BP. After 24 h, the cellular reactive oxygen species and malondialdehyde concentrations significantly increased, while the superoxide dismutase activity decreased; translocation of Nrf2 from the cytosol to the nucleus as well as downstream protein expression of Nrf2-regulated genes heme oxygenase-1 and Bcl-2 was inhibited. Apoptosis was also observed, accompanied by increased caspase-3 and caspase-9 activity. The antioxidant vitamin C alleviated 1-BP-induced apoptosis by inhibiting caspase activity activating the Nrf2 signaling pathway. These findings suggested that 1-BP induced oxidative stress and apoptosis in OVCAR-3 cells through inactivation of Nrf2 signaling.
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Affiliation(s)
- Guangtao Yang
- Institute of Occupational Hazard Assessment, 200636Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Yingping Xiang
- Institute of Occupational Hazard Assessment, 200636Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Wei Zhou
- Institute of Occupational Hazard Assessment, 200636Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Xiaohuan Zhong
- Institute of Occupational Hazard Assessment, 200636Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Yanfang Zhang
- Department of Medical Laboratory, 200636Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Dafeng Lin
- Department of Medical Laboratory, 200636Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Xianqing Huang
- Institute of Occupational Hazard Assessment, 200636Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
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21
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Arkali G, Aksakal M, Kaya ŞÖ. Protective effects of carvacrol against diabetes-induced reproductive damage in male rats: Modulation of Nrf2/HO-1 signalling pathway and inhibition of Nf-kB-mediated testicular apoptosis and inflammation. Andrologia 2020; 53:e13899. [PMID: 33242925 DOI: 10.1111/and.13899] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 12/22/2022] Open
Abstract
Diabetes mellitus, which causes many complications, also adversely affects reproductive system in men. Studies reported that natural antioxidants are effective in reducing important complication risks caused by diabetes. Carvacrol is an antioxidant phenolic monoterpene compound with therapeutic effect in various diseases found in essential oils of aromatic plants such as pepper, wild bergamot and thyme. We aimed to investigate the effects of carvacrol on diabetes-induced reproductive damage in male rats by evaluating the Nrf2/HO-1 pathway and Nf-kB-mediated apoptosis/inflammation and spermatological parameters. For this purpose, 74 Wistar albino male rats were used. The diabetes model was performed using single-dose intraperitoneal injection of streptozotocin 55 mg/kg. Rats were fed with carvacrol 75 mg/kg/daily/gavage for 4 and 8 weeks. Rats were divided into four groups: control group, diabetic group, carvacrol group which fed with carvacrol and the diabetic group which fed with carvacrol. It was determined that carvacrol significantly decreased malondialdehyde levels, Bax,COX-2,Nf-kB protein expression levels, Bax/Bcl-2 ratio and significantly increased glutathione peroxidase, catalase activities, Bcl-2, Nrf2,HO-1 protein expression levels and it was determined that had a positive effect on spermatological parameters. In conclusion, the negative effects of diabetes in the male reproductive system can be prevented and/or reduced by giving carvacrol.
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Affiliation(s)
- Gözde Arkali
- Department of Physiology, Fırat University Faculty of Veterinary Medicine, Elazığ, Turkey
| | - Mesut Aksakal
- Department of Physiology, Fırat University Faculty of Veterinary Medicine, Elazığ, Turkey
| | - Şeyma Özer Kaya
- Department of Reproduction and Artificial Insemınation, Fırat University Faculty of Veterinary Medicine, Elazığ, Turkey
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22
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Song Q, Xie X, Hu Z, Xue J, Zhang S, Xie X. (Z)-7,4'-dimethoxy-6-hydroxy-aurone-4-O- β-glucopyranoside attenuates lipoteichoic acid-induced damage in rat cardiomyoblast cells. J Int Med Res 2020; 48:300060519889716. [PMID: 32865061 PMCID: PMC7469747 DOI: 10.1177/0300060519889716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/30/2019] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Excessive inflammatory responses in the endocardium are related to progression of infectious endocarditis. This study aimed to investigate whether (Z)-7,4'-dimethoxy-6-hydroxy-aurone-4-O-β-glucopyranoside (DHAG), a compound isolated from the endophytic fungus Penicillium citrinum of Bruguiera gymnorrhiza, could attenuate cell damage caused by lipoteichoic acid (LTA) in embryonic rat heart cells (H9c2). METHODS LTA-induced cell damage occurred in H9c2 cells and the protective effects of DHAG at different concentrations (1-10 µM) were assessed. Indicators of oxidative stress and inflammatory responses in H9c2 cells were measured. RESULTS DHAG (1-10 µM) significantly attenuated LTA-induced damage in H9c2 cells, as evidenced by increased cell viability and mitochondrial membrane potential, decreased cytochrome c release and DNA fragmentation, inhibition of caspase-3 and -9 activity, and altered expression of apoptosis-related proteins. DHAG also decreased oxidative stress by increasing protein expression of nuclear factor (erythroid-derived 2)-like 2 (Nrf2). Furthermore, DHAG inhibited inflammatory responses by decreasing protein expression of nuclear factor kappa B (NF-κB) and mitogen-activated protein kinases (MAPKs). CONCLUSION DHAG exerted protective effects against LTA-induced cell damage, at least partially by decreasing oxidative stress and inhibiting inflammatory responses. Our results provide a scientific rational for developing DHAG as a therapy against infectious endocarditis.
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Affiliation(s)
- Qiang Song
- Department of Structural Heart Disease, the First Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, China
| | - Xuegang Xie
- Department of Structural Heart Disease, the First Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, China
| | - Zhi Hu
- Department of Structural Heart Disease, the First Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, China
| | - Jianying Xue
- Department of Structural Heart Disease, the First Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, China
| | - Songlin Zhang
- Department of Structural Heart Disease, the First Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, China
| | - Xinming Xie
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, China
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Wang H, Zhang K, Ruan Z, Sun D, Zhang H, Lin G, Hu L, Zhao S, Fu Q. Probucol enhances the therapeutic efficiency of mesenchymal stem cells in the treatment of erectile dysfunction in diabetic rats by prolonging their survival time via Nrf2 pathway. Stem Cell Res Ther 2020; 11:302. [PMID: 32693824 PMCID: PMC7374958 DOI: 10.1186/s13287-020-01788-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/09/2020] [Accepted: 06/23/2020] [Indexed: 04/12/2023] Open
Abstract
BACKGROUND Intracavernous injection of mesenchymal stem cells (MSCs) is a promising method for diabetic mellitus-induced erectile dysfunction (DMED), but short survival time of MSCs in cavernous is a fatal defect for therapy. This study investigated therapeutic efficiency and potential mechanism of probucol combined with MSCs. METHODS In vivo study, a total of forty-eight 10-week-old male Sprague-Dawley (SD) rats were used. Twelve rats received intraperitoneal injection of PBS as the sham group; the rest received intraperitoneal injection of 60 mg/kg streptozotocin to establish DM models. DM rats were randomly divided into three groups: received intracavernosal (IC) injection of either PBS (DM group), MSCs (M group), or administrated probucol after intracavernosal injection of MSCs (P + M group). Erectile function was assessed by electrical stimulation of the cavernous nerves with real-time intracavernous pressure measurement. After euthanasia, penile tissue was investigated for histologic examination and Western blotting. In in vitro experiment, H2O2 was used to create oxidative stress environment to detect changes in cell viability. CCK8 was used to measure cell viability of MSCs treated with or without probucol. Intracellular ROS changes were detected by flow cytometry. Autophagy and apoptosis were detected by Western blotting and confocal microscopy. RESULTS Recovery of erectile function was observed in the P + M group. The combination therapy decreased fibrosis and increased endothelial function compared with MSC therapy alone. Western blotting results confirmed the increased expression of Nrf2 and HO-1 in cavernous body. H2O2 induced high oxidative stress and reduced cell viability in vitro, which was gradually reversed with increased concentration of probucol. H2O2 reduced Nrf2 expression, which was reversed by probucol's intervention. Furthermore, the expression of Bax, Caspase3, and Cleaved-Caspase3 decreased, and the expression of Bcl-2 increased in a dose-dependent manner because of probucol's intervention. In addition, Beclin1 and LC3II both increased in a dose-dependent manner. Meanwhile, the expression of P62 decreased. In the study of autophagy flux, we found probucol did not block it. CONCLUSION Probucol enhanced therapeutic efficiency of MSCs in DMED by prolonging their survival time, which mediated through improving the transplanted microenvironment of MSCs, increasing self-antioxidant ability of MSCs, strengthening protective autophagy, and inhibiting apoptosis of MSCs via Nrf2 pathway. Schematic model showing combined probucol and MSCs to improve DMED. Probucol increases self-antioxidant ability of MSCs, strengthening protective autophagy and inhibiting apoptosis via Nrf2/HO-1 and Nrf2/autophagy pathways.
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Affiliation(s)
- Haoran Wang
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
| | - Keqin Zhang
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China
| | - Zheng Ruan
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
- Tai'an City Central Hospital, Tai'an, 271000, People's Republic of China
| | - Dingqi Sun
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China
| | - Hui Zhang
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China
| | - Guiting Lin
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, CA, USA
| | - Liangliang Hu
- Department of Urology, Shandong Zaozhuang Municipal Hospital, Zaozhuang, 277000, People's Republic of China
| | - Shengtian Zhao
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China.
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China.
| | - Qiang Fu
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China.
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China.
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Cannabidiol Promotes Endothelial Cell Survival by Heme Oxygenase-1-Mediated Autophagy. Cells 2020; 9:cells9071703. [PMID: 32708634 PMCID: PMC7407143 DOI: 10.3390/cells9071703] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 12/17/2022] Open
Abstract
Cannabidiol (CBD), a non-psychoactive cannabinoid, has been reported to mediate antioxidant, anti-inflammatory, and anti-angiogenic effects in endothelial cells. This study investigated the influence of CBD on the expression of heme oxygenase-1 (HO-1) and its functional role in regulating metabolic, autophagic, and apoptotic processes of human umbilical vein endothelial cells (HUVEC). Concentrations up to 10 µM CBD showed a concentration-dependent increase of HO-1 mRNA and protein and an increase of the HO-1-regulating transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2). CBD-induced HO-1 expression was not decreased by antagonists of cannabinoid-activated receptors (CB1, CB2, transient receptor potential vanilloid 1), but by the reactive oxygen species (ROS) scavenger N-acetyl-L-cysteine (NAC). The incubation of HUVEC with 6 µM CBD resulted in increased metabolic activity, while 10 µM CBD caused decreased metabolic activity and an induction of apoptosis, as demonstrated by enhanced caspase-3 cleavage. In addition, CBD triggered a concentration-dependent increase of the autophagy marker LC3A/B-II. Both CBD-induced LC3A/B-II levels and caspase-3 cleavage were reduced by NAC. The inhibition of autophagy by bafilomycin A1 led to apoptosis induction by 6 µM CBD and a further increase of the proapoptotic effect of 10 µM CBD. On the other hand, the inhibition of HO-1 activity with tin protoporphyrin IX (SnPPIX) or knockdown of HO-1 expression by Nrf2 siRNA was associated with a decrease in CBD-mediated autophagy and apoptosis. In summary, our data show for the first time ROS-mediated HO-1 expression in endothelial cells as a mechanism by which CBD mediates protective autophagy, which at higher CBD concentrations, however, can no longer prevent cell death inducing apoptosis.
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Potential Applications of NRF2 Modulators in Cancer Therapy. Antioxidants (Basel) 2020; 9:antiox9030193. [PMID: 32106613 PMCID: PMC7139512 DOI: 10.3390/antiox9030193] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 02/21/2020] [Accepted: 02/21/2020] [Indexed: 01/17/2023] Open
Abstract
The nuclear factor erythroid 2-related factor 2 (NRF2)-Kelch-like ECH-associated protein 1 (KEAP1) regulatory pathway plays an essential role in protecting cells and tissues from oxidative, electrophilic, and xenobiotic stress. By controlling the transactivation of over 500 cytoprotective genes, the NRF2 transcription factor has been implicated in the physiopathology of several human diseases, including cancer. In this respect, accumulating evidence indicates that NRF2 can act as a double-edged sword, being able to mediate tumor suppressive or pro-oncogenic functions, depending on the specific biological context of its activation. Thus, a better understanding of the mechanisms that control NRF2 functions and the most appropriate context of its activation is a prerequisite for the development of effective therapeutic strategies based on NRF2 modulation. In line of principle, the controlled activation of NRF2 might reduce the risk of cancer initiation and development in normal cells by scavenging reactive-oxygen species (ROS) and by preventing genomic instability through decreased DNA damage. In contrast however, already transformed cells with constitutive or prolonged activation of NRF2 signaling might represent a major clinical hurdle and exhibit an aggressive phenotype characterized by therapy resistance and unfavorable prognosis, requiring the use of NRF2 inhibitors. In this review, we will focus on the dual roles of the NRF2-KEAP1 pathway in cancer promotion and inhibition, describing the mechanisms of its activation and potential therapeutic strategies based on the use of context-specific modulation of NRF2.
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Chen Y, Yang M, Wang ZJ. (Z)-7,4'-Dimethoxy-6-hydroxy-aurone-4-O-β-glucopyranoside mitigates retinal degeneration in Rd10 mouse model through inhibiting oxidative stress and inflammatory responses. Cutan Ocul Toxicol 2019; 39:36-42. [PMID: 31648555 DOI: 10.1080/15569527.2019.1685535] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Purpose: As an inherited retinal dystrophy characterised by progressive degeneration of photoreceptor cells, retinitis pigmentosa (RP) leads to partial or total blindness eventually. Possible causes of the photoreceptor cell death are oxidative stress and inflammatory responses. (Z)-7,4'-Dimethoxy-6-hydroxy-aurone-4-O-β-glucopyranoside (DHAG) is a novel compound with potent antioxidant properties. The aim of this study was to investigate whether DHAG could mitigate photoreceptor cell degeneration in an established mouse model of RP.Materials and method: Rd10 mice were treated with DHAG daily by gavage from postnatal day 12 (P12) to P33. Retinal morphology was evaluated by haematoxylin and eosin staining. Apoptosis-positive cells were detected by terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) assay. Oxidative stress markers and inflammatory factors were measured by enzyme-linked immunosorbent assay (ELISA). Real-time polymerase chain reaction, immunostaining and western blot were applied to measure the gene and protein change to explore the underlying mechanisms.Results: Results showed that DHAG significantly preserved the retinal morphology, reducing photoreceptor cell apoptosis, decreasing oxidative stress and inhibiting inflammatory responses in Rd10 mice. The mechanism might be related to inhibit the activation of P38 pathway.Conclusions: This study showed the beneficial effects of DHAG, a compound possessing antioxidant properties, and provided scientific rationale to develop DHAG as a potential agent to treat RP.
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Affiliation(s)
- You Chen
- Department of Ophthalmology, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Ming Yang
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Zhi-Jun Wang
- Department of Ophthalmology, China-Japan Friendship Hospital, Beijing, People's Republic of China
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Curcumin Protects Human Umbilical Vein Endothelial Cells against H 2O 2-Induced Cell Injury. Pain Res Manag 2019; 2019:3173149. [PMID: 31565108 PMCID: PMC6745114 DOI: 10.1155/2019/3173149] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 12/18/2022]
Abstract
Migraine is a prevalent neurological disorder which causes a huge economic burden on society. It is thought to be a neurovascular disease with oxidative stress might be involved. Curcumin, one of the major ingredients of turmeric, has potent antioxidative and anti-inflammatory properties, but whether it could be used as a potential treatment for migraine remains to be explored. In the present study, human umbilical vein endothelial cells (HUVECs) were pretreated with various concentrations of curcumin (0 μM, 10 μM, 20 μM, 30 μM, 40 μM, and 50 μM) for 12 h, thereby exposed to H2O2 (100 μM) for another 12 h. The viability of HUVECs was tested by the CCK-8 assay, and the activities of antioxidant enzymes including superoxide dismutase (SOD) and glutathione (GSH) were also examined. Intracellular reactive oxygen species (ROS) and malondialdehyde (MDA) were assayed to determine H2O2-induced oxidative stress. In addition, several cell death-related genes (p53, p21, Bax, and Bcl-2) were detected by PCR, and an apoptosis-related protein (caspase3) was evaluated by western blotting. Our results showed that curcumin improved the H2O2-induced decrease of cell viability and antioxidative enzyme activities and decreased the level of oxidative stress. As a conclusion, curcumin could mitigate H2O2-induced oxidative stress and cell death in HUVECs and may be a potential therapeutic drug for migraine.
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