1
|
Chen MS, Wang JX, Zhang H, Cui JG, Zhao Y, Li JL. Novel Role of Hemeoxygenase-1 in Phthalate-Induced Renal Proximal Tubule Cell Ferroptosis. J Agric Food Chem 2023; 71:2579-2589. [PMID: 36696656 DOI: 10.1021/acs.jafc.2c07762] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Phthalates are widely used to improve the flexibility of poly(vinyl chloride) (PVC) polymer agriculture products. Di(2-ethylhexyl) phthalate (DEHP) is a type of addition to plastic and can lead to many health problems. Hemeoxygenase-1 (HO-1) is an extremely important molecule that releases enzymatic products to promote ferroptosis. This research aimed to explore the function of HO-1 in DEHP-induced renal proximal tubule cell ferroptosis. In the experiment, ICR male mice are exposed to (0, 50, 200, and 500 mg/kg BW/day) DEHP for 28 days. Here, we observed that DEHP induced glomeruli atrophy and the tubules swell. Furthermore, DEHP exposure could increase ferrous iron content and decrease antioxidant activity. We also found that DEHP exposure increased the expression of nuclear factor-erythroid 2 p45-related factor 2 (NFE2L2) in the nucleus. In particular, the expression of (HO-1) is significantly increased both in protein and mRNA levels. Glutathione peroxidase 4 (GPX4) as an endogenous control of ferroptosis was downregulated, which proved the occurrence of ferroptosis. In the study, exposure to DEHP activated the NFE2L2/HO-1 signaling pathway and resulted in ferroptosis of the proximal tubule. This research connects ferroptosis with HO-1, providing new insights into the potential roles of phthalates in nephrotoxicity.
Collapse
|
2
|
Rofaeil RR, Welson NN, Fawzy MA, Ahmed AF, Atta M, Bahaa El-Deen MA, Abdelzaher WY. The IL-6/HO-1/STAT3 signaling pathway is implicated in the amelioration of acetaminophen-induced hepatic toxicity: A neonatal rat model. Hum Exp Toxicol 2023; 42:9603271231151376. [PMID: 36625353 DOI: 10.1177/09603271231151376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The widespread use of acetaminophen (APAP) in children as an over-the-counter treatment can cause acute liver failure through accidental overdose or ingestion. Therefore, the current research sought to investigate the function of hemin in mitigating the acute hepatotoxic effect of APAP in rat offspring. Thirty-two rats were assigned into four groups: control, hemin, APAP, and hemin/APAP groups. Liver enzymes were measured in serum along with oxidative stress indicators, tumor necrosis factor-α (TNF-α), interleukin-1beta (IL-1β), total nitrites (NOx), and caspase 3 in liver. Immunoblotting of heme oxygenase-1 (HO-1), interleukin-6 (IL-6), Janus kinase 2 (Jak2), and signal transducer and activator of transcription 3 (STAT3) was carried out. The Bax/Bcl2 mRNA expression ratio was determined. A histological study and an immunohistochemical study of phosphorylated STAT3 were also done. Hemin reduced liver enzymes, MDA, TNF-α, NOx, caspase 3, IL-1β, p-STAT3 expression, p-Jak2 expression, IL-6 expression, and Bax/Bcl2 mRNA expression ratio. In contrast, hemin increased GSH, TAC, and the expression of HO-1, improving the histopathological picture of liver tissue. Thus, hemin could ameliorate APAP-induced hepatic toxicity in rat offspring through anti-oxidant, anti-apoptotic, and anti-inflammatory actions with a possible role for the IL-6/HO-1/Jak2/STAT3 pathway.
Collapse
Affiliation(s)
- Remon Roshdy Rofaeil
- Department of Pharmacology, Faculty of Medicine, 68877Minia University, Minia, Egypt.,Department of Pharmacology, Deraya University, New Minia City, Egypt
| | - Nermeen N Welson
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, 158411Beni-Suef University, Beni-Suef, Egypt
| | - Michael A Fawzy
- Department of Biochemistry, Faculty of Pharmacy, 68877Minia University, Minia, Egypt
| | - Amira F Ahmed
- Department of Histology and Cell Biology, Faculty of Medicine, 68877Minia University, Minia, Egypt.,Department of Histology and Cell Biology, Misr University for Science and Technology, October City, Egypt
| | - Medhat Atta
- Department of Anatomy, Faculty of Medicine, 68877Minia University, Minia, Egypt
| | | | | |
Collapse
|
3
|
Kim EN, Lee HS, Jeong GS. Cudratricusxanthone O Inhibits H 2O 2-Induced Cell Damage by Activating Nrf2/HO-1 Pathway in Human Chondrocytes. Antioxidants (Basel) 2020; 9:antiox9090788. [PMID: 32854434 PMCID: PMC7555960 DOI: 10.3390/antiox9090788] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/21/2020] [Accepted: 08/23/2020] [Indexed: 02/06/2023] Open
Abstract
Osteoarthritis (OA) is a common joint degenerative disease induced by oxidative stress in chondrocytes. Although induced-heme oxygenase-1 (HO-1) has been found to protect cells against oxygen radical damage, little information is available regarding the use of bioactive compounds from natural sources for regulating the HO-1 pathway to treat OA. In this study, we explored the inhibitory effects of cudratricusxanthone O (CTO) isolated from the Maclura tricuspidata Bureau (Moraceae) on H2O2-induced damage of SW1353 chondrocytes via regulation of the HO-1 pathway. CTO promoted HO-1 expression by enhancing the translocation of nuclear factor erythroid 2-related factor 2 (Nrf2) into the nucleus without inducing toxicity. Pretreatment with CTO-regulated reactive oxygen species (ROS) production by inducing expression of antioxidant enzymes in H2O2-treated cells and maintained the functions of H2O2-damaged chondrocytes. Furthermore, CTO prevented H2O2-induced apoptosis by regulating the expression of anti-apoptotic proteins. Treatment with the HO-1 inhibitor tin-protoporphyrin IX revealed that these protective effects were exerted due to an increase in HO-1 expression induced by CTO. In conclusion, CTO protects chondrocytes from H2O2-induced damages-including ROS accumulation, dysfunction, and apoptosis through activation of the Nrf2/HO-1 signaling pathway in chondrocytes and, therefore, is a potential therapeutic agent for OA treatment.
Collapse
|
4
|
Cumaoğlu A, Ağkaya AÖ, Özkul Z. Effect of the Lipid Peroxidation Product 4-Hydroxynonenal on Neuroinflammation in Microglial Cells: Protective Role of Quercetin and Monochloropivaloylquercetin. Turk J Pharm Sci 2018; 16:54-61. [PMID: 32454696 DOI: 10.4274/tjps.58966] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 12/14/2017] [Indexed: 12/30/2022]
Abstract
Objectives The lipid peroxidation-derived aldehyde 4-hydroxynonenal (HNE) has been implicated in a number of oxidative stress-induced inflammatory pathologies such as neurodegenerative diseases and aging. In this regard, we investigated the effects of HNE on neuroinflammatory responses by measuring cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) induction with cytokine production. In addition, we measured nuclear factor erythroid 2-related factor 2 (Nrf-2)/Kelch-like ECH-associated protein 1 (Keap1) signaling proteins, and antioxidant enzymes heme oxygenase-1 (HO-1) and nicotinamide adenine dinucleotide phosphate dehydrogenase, quinone 1 (NQO1), and compared the results with quercetin and monochloropivaloylquercetin (MPQ) pretreated microglial cells. Materials and Methods Cytotoxicity was determined by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and production of cytokines was determined by cytokine array. Furthermore, intracellular Nfr2/Keap1 signaling proteins, HO-1, NQO1, and COX-2 expression were analyzed by western blot in 2.5 μM HNE treated BV-2 cells. Results Inducible nitric oxide synthase (iNOS) and COX-2 mRNA levels were measured with reverse transcription-quantitative polymerase chain reaction. HNE induced both COX-2 mRNA and protein levels, iNOS mRNA expression, and cytokine production. In addition, HNE markedly increased Keap1 levels and decreased cytoplasmic Nrf-2 expression with antioxidant enzyme HO-1 levels. Quercetin and monochloropivaloylquercetin treatment alleviated neuroinflammatory responses in microglial cells, by decreasing COX-2 mRNA expression. Monochloropivaloylquercetin decreased cytoplasmic Keap1 levels and increased nuclear translocation of Nrf-2 resulted in induction of HO-1 and NQO1 expression. Conclusion These results suggest that HNE could be a link between oxidative stress and inflammation in BV-2 microglia cells. In particular, monochloropivaloylquercetin alleviated inflammation, probably by decreasing the expression of proinflammatory genes and strengthening the antioxidant defense system.
Collapse
Affiliation(s)
- Ahmet Cumaoğlu
- Erciyes University, Faculty of Pharmacy, Department of Biochemistry, Kayseri, Turkey
| | - Aslı Özge Ağkaya
- Erciyes University, Faculty of Pharmacy, Department of Biochemistry, Kayseri, Turkey
| | - Zehra Özkul
- Erciyes University, Faculty of Pharmacy, Department of Biochemistry, Kayseri, Turkey
| |
Collapse
|
5
|
Park YA, Lee SR, Lee JW, Koo HJ, Jang SA, Yun SW, Kim HJ, Woo JS, Park MR, Kang SC, Kim YK, Sohn EH. Suppressive Effect of Fermented Angelica tenuissima Root Extract against Photoaging: Possible Involvement of Hemeoxygenase-1. J Microbiol Biotechnol 2018; 28:1391-1400. [PMID: 30111075 DOI: 10.4014/jmb.1805.05065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Angelica tenuissima root has historically been used as a traditional medicine in Korea. Previous studies have identified the anti-melanogenic effects of the extract of A. tenuissima root fermented by Aspergillus oryzae (FAT). This study investigated the protective effects of FAT against ultraviolet light B exposure (UVB; 30 mJ/cm2) in HaCaT (human keratinocyte) or Hs68 (human foreskin fibroblast) skin cells. FAT treatment was able to stimulate wound healing rate at the basal condition. FAT also favored the maintenance and/or improvement of extracellular matrix impairment caused by UVB irradiation through: 1) upregulation of procollagen Type-1 synthesis and secretion; 2) suppression of MMP-1 and elastase expression. FAT was able to play a role in the attenuation of inflammatory responses caused by UVB irradiation via upregulation of photo-protective hemeoxygease-1 and suppression of proinflammatory cyclooxygenase-2 expression. After further verification of the anti-photoaging potential of FAT, it could be utilized as an effective ingredient in anti-aging and anti-wrinkle cosmetics.
Collapse
Affiliation(s)
- Yun-A Park
- Department of Herbal Medicine Resource, Kangwon National University, Samcheok 25949, Republic of Korea
| | - Sung Ryul Lee
- Department of Convergence Biomedical Science, Cardiovascular and Metabolic Disease Center, College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Jin Woo Lee
- Department of Herbal Medicine Resource, Kangwon National University, Samcheok 25949, Republic of Korea
| | - Hyun Jung Koo
- Department of Medicinal and Industrial Crops, Korea National College of Agriculture and Fisheries, Jeonju 54874, Republic of Korea
| | - Seon-A Jang
- Department of Oriental Medicine Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Seung-Won Yun
- Chungbuk Technopark, Cheongju 28115, Republic of Korea
| | - Hyun Ju Kim
- Chungbuk Technopark, Cheongju 28115, Republic of Korea
| | - Jeong Suk Woo
- Chungbuk Technopark, Cheongju 28115, Republic of Korea
| | - Myung Rye Park
- Korea Research Institute Bio Science Co., Ltd., Yeoju 12668, Republic of Korea
| | - Se Chan Kang
- Department of Oriental Medicine Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Youn Kyu Kim
- Korea Research Institute Bio Science Co., Ltd., Yeoju 12668, Republic of Korea
| | - Eun-Hwa Sohn
- Department of Herbal Medicine Resource, Kangwon National University, Samcheok 25949, Republic of Korea
| |
Collapse
|
6
|
El-Agamy DS, Shaaban AA, Almaramhy HH, Elkablawy S, Elkablawy MA. Pristimerin as a Novel Hepatoprotective Agent Against Experimental Autoimmune Hepatitis. Front Pharmacol 2018; 9:292. [PMID: 29643811 PMCID: PMC5883828 DOI: 10.3389/fphar.2018.00292] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 03/13/2018] [Indexed: 01/09/2023] Open
Abstract
Pristimerin (Pris) is bioactive natural quinonoid triterpene that has anti-inflammatory and anti-cancer activities. Meanwhile, its effect against hepatitis needs to be elucidated. This investigation aimed to evaluate the ability of Pris to protect against autoimmune hepatitis (AIH). A mouse model of AIH was established using single concanavalin A (Con A) intravenous injection. Mice were treated with Pris at two different doses (0.4 and 0.8 mg/kg) for 5 days prior to Con A challenge. Markers of hepatic injury, oxidative, inflammatory, and apoptotic damage were estimated. Results have revealed that Pris pretreatment ameliorated Con A-induced hepatic damage. There was decrease in the elevated serum indices of hepatic damage (ALT, AST, ALP, and LDH) and improvement of the histopathological picture of the liver. Pris effectively decreased Con A-induced neutrophil infiltration into the hepatic tissue as presented by amelioration of the level and immuno-expression of myeloperoxidase (MPO). Additionally, Pris attenuated Con A-induced increase in CD4+ T-cells in hepatic tissue. Lipid peroxidation was significantly depressed simultaneously with enhancement of the antioxidant capacity in Pris pretreated animals. Pris also enhanced nuclear factor erythroid 2-related factor 2 (Nrf2) mRNA expression and its binding capacity. In addition, Pris increased mRNA expression of heme-oxygenase-1 (HO-1) and restored its normal level. Furthermore, Pris decreased the level and immuno-expression of nuclear factor kappa-B (NF-κB) as well as the downstream inflammatory cascade (TNF-α, IL-6, and IL-1β). Finally, Pris showed inhibitory effect on Con A-induced apoptotic alteration in liver as it decreased the mRNA expression and levels the apoptotic markers (Bax and caspase-3) and increased mRNA expression and level of the anti-apoptotic protein (Bcl2). In conclusion, this study demonstrates the potent hepatoprotective efficacy of Pris against Con A-induced hepatitis which may be related to anti-oxidative, anti-inflammatory, and anti-apoptotic pathways. Pris could serve as a new candidate for the management of hepatitis.
Collapse
Affiliation(s)
- Dina S El-Agamy
- Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Medina, Saudi Arabia.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Ahmed A Shaaban
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Faculty of Pharmacy, Aqaba University of Technology, Aqaba, Jordan
| | - Hamdi H Almaramhy
- Department of Surgery, College of Medicine, Taibah University, Medina, Saudi Arabia
| | - Sarah Elkablawy
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Mohamed A Elkablawy
- Department of Pathology, College of Medicine, Taibah University, Medina, Saudi Arabia.,Department of Pathology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| |
Collapse
|
7
|
Li C, Yang B, Xu Z, Boivin E, Black M, Huang W, Xu B, Wu P, Zhang B, Li X, Chen K, Wu Y, Rayat GR. Protective effect of cyanidin-3-O-glucoside on neonatal porcine islets. J Endocrinol 2017; 235:237-249. [PMID: 28931557 DOI: 10.1530/joe-17-0141] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 09/20/2017] [Indexed: 12/13/2022]
Abstract
Oxidative stress is a major cause of islet injury and dysfunction during isolation and transplantation procedures. Cyanidin-3-O-glucoside (C3G), which is present in various fruits and vegetables especially in Chinese bayberry, shows a potent antioxidant property. In this study, we determined whether C3G could protect neonatal porcine islets (NPI) from reactive oxygen species (H2O2)-induced injury in vitro and promote the function of NPI in diabetic mice. We found that C3G had no deleterious effect on NPI and that C3G protected NPI from damage induced by H2O2 Significantly higher hemeoxygenase-1 (HO1) gene expression was detected in C3G-treated NPI compared to untreated islets before and after transplantation (P < 0.05). Western blot analysis showed a significant increase in the levels of phosphorylated extracellular signal-regulated kinase 1/2 (ERK1/2) and phosphatidylinositol 3-kinase (PI3K/Akt) proteins in C3G-treated NPI compared to untreated islets. C3G induced the nuclear translocation of nuclear erythroid 2-related factor 2 (NRF2) and the significant elevation of HO1 protein. Recipients of C3G-treated NPI with or without C3G-supplemented drinking water achieved normoglycemia earlier compared to recipients of untreated islets. Mice that received C3G-treated islets with or without C3G-supplemented water displayed significantly lower blood glucose levels at 5-10 weeks post-transplantation compared to mice that received untreated islets. Mice that received C3G-treated NPI and C3G-supplemented drinking water had significantly (P < 0.05) lower blood glucose levels at 7 and 8 weeks post-transplantation compared to mice that received C3G-treated islets. These findings suggest that C3G has a beneficial effect on NPI through the activation of ERK1/2- and PI3K/AKT-induced NRF2-mediated HO1 signaling pathway.
Collapse
Affiliation(s)
- Chao Li
- Department of SurgeryThe Second Affiliated Hospital of Zhejiang University, Hanghzou, Zhejiang, China
| | - Bin Yang
- Department of SurgeryThe Second Affiliated Hospital of Zhejiang University, Hanghzou, Zhejiang, China
| | - Zhihao Xu
- Department of SurgeryRay Rajotte Surgical-Medical Research Institute, Alberta Diabetes Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Eric Boivin
- Department of SurgeryRay Rajotte Surgical-Medical Research Institute, Alberta Diabetes Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Mazzen Black
- Department of SurgeryRay Rajotte Surgical-Medical Research Institute, Alberta Diabetes Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Wenlong Huang
- Department of SurgeryRay Rajotte Surgical-Medical Research Institute, Alberta Diabetes Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Baoyou Xu
- Department of SurgeryRay Rajotte Surgical-Medical Research Institute, Alberta Diabetes Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Ping Wu
- Department of SurgeryRay Rajotte Surgical-Medical Research Institute, Alberta Diabetes Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Bo Zhang
- Department of SurgeryThe Second Affiliated Hospital of Zhejiang University, Hanghzou, Zhejiang, China
| | - Xian Li
- Department of HorticultureCollege of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
| | - Kunsong Chen
- Department of HorticultureCollege of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yulian Wu
- Department of SurgeryThe Second Affiliated Hospital of Zhejiang University, Hanghzou, Zhejiang, China
| | - Gina R Rayat
- Department of SurgeryRay Rajotte Surgical-Medical Research Institute, Alberta Diabetes Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| |
Collapse
|
8
|
Khan A, Jamwal S, Bijjem KRV, Prakash A, Kumar P. Neuroprotective effect of hemeoxygenase-1/glycogen synthase kinase-3β modulators in 3-nitropropionic acid-induced neurotoxicity in rats. Neuroscience 2014; 287:66-77. [PMID: 25536048 DOI: 10.1016/j.neuroscience.2014.12.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 12/09/2014] [Accepted: 12/11/2014] [Indexed: 01/27/2023]
Abstract
The present study has been designed to explore the possible interaction between hemeoxygenase-1 (HO-1) and glycogen synthase kinase-3β (GSK-3β) pathway in 3-nitropropionic acid (3-NP)-induced neurotoxicity in rats. 3-NP produces neurotoxicity by inhibition of the mitochondrial complex II (enzyme succinate dehydrogenase) and by sensitizing the N-methyl-D-aspartate receptor. Recent studies have reported the therapeutic potential of HO-1/GSK-3β modulators in different neurodegenerative disorders. However, their exact role is yet to be explored. The present study is an attempt to investigate the effect of pharmacological modulation of HO-1/GSK-3β pathway against 3-NP-induced behavioral, biochemical and molecular alterations in rat. Behavioral observation, oxidative stress, pro-inflammatory [tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β)], HO-1 and GSK-3β activity were evaluated post 3-NP treatment. Findings of the present study demonstrate a significant alteration in the locomotor activity, motor coordination, oxidative burden (increased lipid peroxidation, nitrite concentration and decreased endogenous antioxidants), pro-inflammatory mediators [TNF-α, IL-1β], HO-1 and GSK-3β activity in 3-NP-treated animals. Further, administration of hemin (10- and 30-mg/kg; i.p.) and lithium chloride (LiCl) (25- and 50-mg/kg; i.p.) prevented the alteration in body weight, motor impairments, oxidative stress and cellular markers. In addition, combined administration of hemin (10-mg/kg) and LiCl (25-mg/kg) showed synergistic effect on 3-NP-treated rats. Pretreatment with Tin (IV) protoporphyrin (40 μM/kg), HO-1 inhibitor reversed the beneficial effect of LiCl and hemin. Outcomes of the present study suggest that HO-1 and GSK-3β enzymes are involved in the pathophysiology of HD. The modulators of both the pathways might be used as adjuvants or prophylactic therapy for the treatment of HD-like symptoms.
Collapse
Affiliation(s)
- A Khan
- Department of Pharmacology, I.S.F. College of Pharmacy, Ferozepur Road, Ghal Kalan, Moga 142001, Punjab, India
| | - S Jamwal
- Department of Pharmacology, I.S.F. College of Pharmacy, Ferozepur Road, Ghal Kalan, Moga 142001, Punjab, India; Research Scholar, Punjab Technical University, Jalandhar, India
| | - K R V Bijjem
- Department of Pharmacology, I.S.F. College of Pharmacy, Ferozepur Road, Ghal Kalan, Moga 142001, Punjab, India
| | - A Prakash
- Department of Pharmacology, I.S.F. College of Pharmacy, Ferozepur Road, Ghal Kalan, Moga 142001, Punjab, India
| | - P Kumar
- Department of Pharmacology, I.S.F. College of Pharmacy, Ferozepur Road, Ghal Kalan, Moga 142001, Punjab, India.
| |
Collapse
|
9
|
Shi Y, Liang XC, Zhang H, Wu QL, Qu L, Sun Q. Quercetin protects rat dorsal root ganglion neurons against high glucose-induced injury in vitro through Nrf-2/HO-1 activation and NF-κB inhibition. Acta Pharmacol Sin 2013; 34:1140-8. [PMID: 23770986 PMCID: PMC4003159 DOI: 10.1038/aps.2013.59] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 04/12/2013] [Indexed: 12/28/2022] Open
Abstract
AIM To examine the effects of quercetin, a natural antioxidant, on high glucose (HG)-induced apoptosis of cultured dorsal root ganglion (DRG) neurons of rats. METHODS DRG neurons exposed to HG (45 mmol/L) for 24 h were employed as an in vitro model of diabetic neuropathy. Cell viability, reactive oxygen species (ROS) level and apoptosis were determined. The expression of NF-кB, IкBα, phosphorylated IкBα and Nrf2 was examined using RT PCR and Western blot assay. The expression of hemeoxygenase-1 (HO-1), IL-6, TNF-α, iNOS, COX-2, and caspase-3 were also examined. RESULTS HG treatment markedly increased DRG neuron apoptosis via increasing intracellular ROS level and activating the NF-κB signaling pathway. Co-treatment with quercetin (2.5, 5, and 10 mmol/L) dose-dependently decreased HG-induced caspase-3 activation and apoptosis. Quercetin could directly scavenge ROS and significantly increased the expression of Nrf-2 and HO-1 in DRG neurons. Quercetin also dose-dependently inhibited the NF-κB signaling pathway and suppressed the expression of iNOS, COX-2, and proinflammatory cytokines IL-6 and TNF-α. CONCLUSION Quercetin protects rat DRG neurons against HG-induced injury in vitro through Nrf-2/HO-1 activation and NF-κB inhibition, thus may be beneficial for the treatment of diabetic neuropathy.
Collapse
Affiliation(s)
- Yue Shi
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Xiao-chun Liang
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- E-mail
| | - Hong Zhang
- Department of Pathology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Qun-li Wu
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Ling Qu
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Qing Sun
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| |
Collapse
|
10
|
González-Burgos E, Carretero ME, Gómez-Serranillos MP. Kaurane diterpenes from Sideritis spp. exert a cytoprotective effect against oxidative injury that is associated with modulation of the Nrf2 system. Phytochemistry 2013; 93:116-123. [PMID: 23642391 DOI: 10.1016/j.phytochem.2013.03.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 03/22/2013] [Accepted: 03/27/2013] [Indexed: 06/02/2023]
Abstract
Kaurane diterpenes have been shown to possess antioxidant properties. As a part of our ongoing studies on the identification of biologically active diterpenes from Sideritis spp., we have previously isolated and structurally elucidated the major kaurane diterpenes foliol, linearol and sidol, in a previous study from the aerial parts of Sideritis linearifolia and Sideritis leucantha. We have now examined the ability of these compounds to protect PC12 cells in an H2O2-induced oxidative stress model. Linearol and sidol (5 and 10 μM, 24 h) significantly attenuated loss of mitochondrial function (MTT assay) and membrane integrity (LDH assay) and morphological changes associated with H2O2-mediated cytotoxicity. Moreover, pretreatments with linearol and sidol effectively reduced intracellular ROS production, decreased MDA levels (lipid peroxidation product) and restored GSH/GSSG ratio. Furthermore, analysis of the effect of diterpenes on antioxidant enzymes showed that linearol and sidol induced the upregulation and protein expression of the main antioxidant enzymes CAT, SOD, GPx, GR and HO-1. Considering molecular mechanisms for maintaining cellular redox homeostasis by linearol and sidol, it would appear that the Nrf2 transcription factor seems to be involved. These results indicate that linearol and sidol are potential cytoprotective compounds, through antioxidant mechanisms, under H2O2-induced oxidative stress.
Collapse
Affiliation(s)
- E González-Burgos
- Department of Pharmacology, Faculty of Pharmacy, University Complutense, Madrid, Spain
| | | | | |
Collapse
|
11
|
Jackson SJT, Murphy LL, Venema RC, Singletary KW, Young AJ. Curcumin binds tubulin, induces mitotic catastrophe, and impedes normal endothelial cell proliferation. Food Chem Toxicol 2013; 60:431-8. [PMID: 23939039 DOI: 10.1016/j.fct.2013.08.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 08/01/2013] [Accepted: 08/04/2013] [Indexed: 12/18/2022]
Abstract
Curcumin, a component of turmeric spice that imparts flavor and color to curry, is thought to possess anti-inflammatory and antioxidant properties in biological tissues. However, while such efficacies have been described in the context of carcinogenesis, the impact of curcumin on normal cell cycle regulation is poorly understood. Here, we provide evidence of curcumin toxicity in proliferating bovine aortic endothelial cells, at concentrations relevant to the diet and below those previously reported in cancer models. Upon confirming curcumin's ability to upregulate hemeoxygenase-1 in a dose-dependent fashion, we found the minimally efficacious curcumin concentration to also inhibit endothelial cell DNA synthesis. Moreover, curcumin concentrations below the minimum 2 μM threshold required to induce hemeoxygenase-1 bound tubulin protein in vitro and triggered hallmark evidence of mitotic catastrophe in vivo. Concentrations as low as 0.1 μM curcumin led to disproportionate DNA segregation, karyorrhexis, and micronucleation in proliferating endothelial cells. While suggesting a mechanism by which physiological curcumin concentrations inhibit cell cycle progression, these findings describe heretofore unappreciated curcumin toxicity with potential implications for endothelial growth, development, and tissue healing.
Collapse
Affiliation(s)
- Steven J T Jackson
- U.S. Army Research Institute of Environmental Medicine, Military Nutrition Division, 15 Kansas Street, Natick, MA 01760, United States.
| | | | | | | | | |
Collapse
|
12
|
Hou J, Cai S, Kitajima Y, Fujino M, Ito H, Takahashi K, Abe F, Tanaka T, Ding Q, Li XK. 5-Aminolevulinic acid combined with ferrous iron induces carbon monoxide generation in mouse kidneys and protects from renal ischemia-reperfusion injury. Am J Physiol Renal Physiol 2013; 305:F1149-57. [PMID: 23904222 DOI: 10.1152/ajprenal.00275.2013] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Renal ischemia reperfusion injury (IRI) is a major factor responsible for acute renal failure. An intermediate in heme synthesis, 5-aminolevulinic acid (5-ALA) is fundamental in aerobic energy metabolism. Heme oxygenase (HO)-1 cleaves heme to form biliverdin, carbon monoxide (CO), and iron (Fe(2+)), which is used with 5-ALA. In the present study, we investigated the role of 5-ALA in the attenuation of acute renal IRI using a mouse model. Male Balb/c mice received 30 mg/kg 5-ALA with Fe(2+) 48, 24, and 2 h before IRI and were subsequently subjected to bilateral renal pedicle occlusion for 45 min. The endogenous CO concentration of the kidneys from the mice administered 5-ALA/Fe(2+) increased significantly, and the peak concentrations of serum creatinine and blood urea nitrogen decreased. 5-ALA/Fe(2+) treatments significantly decreased the tubular damage and number of apoptotic cells. IRI-induced renal thiobarbituric acid-reactive substance levels were also significantly decreased in the 5-ALA/Fe(2+) group. Furthermore, mRNA expression of HO-1, TNF-α, and interferon-γ was significantly increased after IRI. Levels of HO-1 were increased and levels of TNF-α and interferon-γ were decreased in the 5-ALA/Fe(2+)-pretreated renal parenchyma after IRI. F4/80 staining showed reduced macrophage infiltration, and TUNEL staining revealed that there were fewer interstitial apoptotic cells. These findings suggest that 5-ALA/Fe(2+) can protect the kidneys against IRI by reducing macrophage infiltration and decreasing renal cell apoptosis via the generation of CO.
Collapse
Affiliation(s)
- Jiangang Hou
- Div. of Radiation Safety and Immune Tolerance, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Sarvestani NN, Khodagholi F, Ansari N, Farimani MM. Involvement of p-CREB and phase II detoxifying enzyme system in neuroprotection mediated by the flavonoid calycopterin isolated from Dracocephalum kotschyi. Phytomedicine 2013; 20:939-946. [PMID: 23639191 DOI: 10.1016/j.phymed.2013.03.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 02/24/2013] [Accepted: 03/15/2013] [Indexed: 06/02/2023]
Abstract
PURPOSE There is an increasing amount of experimental evidence that oxidative stress has a central role in the neuropathology of neurodegenerative diseases. It has been suggested that the loss of cell function results from the increased oxidative damage to proteins and DNA. Herein, we investigated the effect of a natural neuroprotective flavonoid, calycopterin, on H₂O₂-induced disruption of phase II detoxifying enzyme system and cAMP response element binding protein (CREB) phosphorylation. METHODS PC12 cells were treated with 25, 50 and 100 μM of calycopterin for 3h, followed by adding H₂O₂ (150 μM) for 24 h. The extent of apoptosis was assessed by comet assay. The level of phosphorylated CREB, nuclear factor erythroid 2-related factor 2 (Nrf2), glutamylcysteine synthetase (γ-GCS) and heme oxygenase 1 (HO-1) were measured by western blot method. The concentration of glutathione (GSH) was determined in whole cell lysate using dithionitrobenzoic acid method. Superoxide dismutase (SOD) activity was measured by colorimetric assay. RESULT Morphological analysis of protection induced by calycopterin, determined by comet assay, showed that calycopterin reduced DNA in tail. We found that H₂O₂ decreased mitochondrial membrane potential (MMP), while, calycopterin prevented this decrease in MMP in presence of H₂O₂. In H₂O₂-treated cells, calycopterin also suppressed cytochrome C release to cytosol that is necessary for maintaining mitochondrial homeostasis in survived cells. Moreover, calycopterin, in presence of H₂O₂ inhibited the decrease caused by oxidative stress in stress-sensing transcription factors, CREB and Nrf2, which play an important role in antioxidant capacity of the cell. There was also an increase in γ-GCS and HO-1 levels in calycopterin pretreated cells. In the presence of H₂O₂, calycopterin inhibited decrease in GSH level and SOD activity. CONCLUSION We provided documentation of neuroprotective effect of a natural flavone, calycopterin, against H₂O₂-induced oxidative stress in differentiated PC12 cells by modulating the level of CREB phosphorylation and Nrf2 pathway.
Collapse
|