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Pterostilbene promotes mitochondrial apoptosis and inhibits proliferation in glioma cells. Sci Rep 2021; 11:6381. [PMID: 33737656 PMCID: PMC7973728 DOI: 10.1038/s41598-021-85908-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 03/09/2021] [Indexed: 01/15/2023] Open
Abstract
Glioma is the most general primary and lethal intracranial malignant tumor. Pterostilbene (PTE), an analog of stilbene and resveratrol, has attracted attention in recent years due to its significant antitumor activity in multiple solid tumors; however, its effect on drug-resistant glioma cells and the underlying mechanism have not yet been reported. In this study, we found that pterostilbene inhibited proliferation, induced intrinsic mitochondria-mediated apoptosis and caused S phase arrest, inhibited migration and excessive invasion in glioma cells. Pretreatment with the pan-caspase-inhibitor Z-VAD-FMK attenuated the PTE-induced apoptosis of glioma cells. Moreover, PTE significantly increased the production of reactive oxygen species (ROS) and reduce the mitochondrial membrane potential (MMP). Inhibition of ROS with N-acetyl-l-cysteine not only rescued PTE-induced reduction of cellular viability but also prevented glioma cell apoptosis. We also discovered ERK 1/2 and JNK signaling pathways were activated by PTE and contributed to induce glioma cell apoptosis. In addition, specific inhibitors of ERK 1/2 and JNK attenuated PTE-induced apoptosis. Besides, PTE significantly reduced tumor volume and prolonged median survival of tumor-bearing rats in vivo. In summary, the results of this study indicate that the anti-tumor effect of PTE on glioma cells may provide a new treatment option for glioma patients.
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Lim YRI, Preshaw PM, Lin H, Tan KS. Resveratrol and Its Analogs as Functional Foods in Periodontal Disease Management. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.636423] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Periodontitis is a common chronic inflammatory disease driven by the interaction between a dysbiotic oral microbiome and the dysregulated host immune-inflammatory response. Naturally derived nutraceuticals, such as resveratrol and its analogs, are potential adjunctive therapies in periodontal treatment due to their antimicrobial and anti-inflammatory properties. Furthermore, different analogs of resveratrol and the choice of solvents used may lead to varying effects on therapeutic properties. This review presents the current findings and gaps in our understanding on the potential utility of resveratrol and its analogs in periodontal treatment.
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Zhang Y, Han Z, Jiang A, Wu D, Li S, Liu Z, Wei Z, Yang Z, Guo C. Protective Effects of Pterostilbene on Lipopolysaccharide-Induced Acute Lung Injury in Mice by Inhibiting NF-κB and Activating Nrf2/HO-1 Signaling Pathways. Front Pharmacol 2021; 11:591836. [PMID: 33633565 PMCID: PMC7901969 DOI: 10.3389/fphar.2020.591836] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 12/17/2020] [Indexed: 02/06/2023] Open
Abstract
Pterostilbene (PTER) is a kind of stilbene compound with biological activity isolated from plants such as red sandalwood, blueberry and grape. It has anti-tumor, anti-bacterial, anti-oxidation and other pharmacological activities. However, the underlying mechanism of the protective effect of PTER on lipopolysaccharide (LPS)-induced acute lung injury (ALI) remained not clarified. In this study, LPS was used to establish a mouse model of ALI. Bronchoalveolar lavage fluid (BALF) was collected for inflammatory cells, and the wet-to-dry weight ratio of the lungs was measured. The activities of myeloperoxidase (MPO), antioxidant indexes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) and oxidation index such as malondialdehyde (MDA) in lung tissues of mice were measured by the corresponding kits. The levels of Cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), TNF-α, IL-6 and IL-1β in lung tissues of mice were detected by quantitative real-time polymerase chain reaction (qRT-PCR). The activities of Nrf2, HO-1, p-p65 and p-IκB were determined by western blotting. The results showed that the model of LPS-induced ALI was successfully replicated, and it was found that PTER could significantly improve the pathological degree of ALI such as sustained the integrity of the lung tissue structure, alleviated pulmonary interstitial edema and alveolar wall thickening, reduced infiltrated inflammatory cells. PTER could decrease the number of inflammatory cells and obviously inhibit the increase of W/D ratio caused by LPS. PTER could also significantly reduce LPS-induced MPO and MDA, and increase LPS-decreased SOD, CAT and GSH-Px in the lungs. In addition, it was also found that PTER has the ability to decrease LPS-induced production of COX-2, iNOS, TNF-α, IL-6 and IL-1β. The underlying mechanism involved in the protective effect of PTER on ALI were via activating Nrf2 and HO-1, and inhibiting the phosphorylation of p65 and IκB. These results suggested that PTER can protect LPS-induced ALI in mice by inhibiting inflammatory response and oxidative stress, which provided evidence that PTER may be a potential therapeutic candidate for LPS-induced ALI intervention.
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Affiliation(s)
- Yong Zhang
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Zhen Han
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Aimin Jiang
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Di Wu
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Shuangqiu Li
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Ziyi Liu
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Zhengkai Wei
- College of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Zhengtao Yang
- College of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Changming Guo
- College of Veterinary Medicine, Jilin University, Changchun, China
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Mohsenpour H, Pesce M, Patruno A, Bahrami A, Pour PM, Farzaei MH. A Review of Plant Extracts and Plant-Derived Natural Compounds in the Prevention/Treatment of Neonatal Hypoxic-Ischemic Brain Injury. Int J Mol Sci 2021; 22:E833. [PMID: 33467663 PMCID: PMC7830094 DOI: 10.3390/ijms22020833] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/05/2021] [Accepted: 01/11/2021] [Indexed: 12/13/2022] Open
Abstract
Neonatal hypoxic-ischemic (HI) brain injury is one of the major drawbacks of mortality and causes significant short/long-term neurological dysfunction in newborn infants worldwide. To date, due to multifunctional complex mechanisms of brain injury, there is no well-established effective strategy to completely provide neuroprotection. Although therapeutic hypothermia is the proven treatment for hypoxic-ischemic encephalopathy (HIE), it does not completely chang outcomes in severe forms of HIE. Therefore, there is a critical need for reviewing the effective therapeutic strategies to explore the protective agents and methods. In recent years, it is widely believed that there are neuroprotective possibilities of natural compounds extracted from plants against HIE. These natural agents with the anti-inflammatory, anti-oxidative, anti-apoptotic, and neurofunctional regulatory properties exhibit preventive or therapeutic effects against experimental neonatal HI brain damage. In this study, it was aimed to review the literature in scientific databases that investigate the neuroprotective effects of plant extracts/plant-derived compounds in experimental animal models of neonatal HI brain damage and their possible underlying molecular mechanisms of action.
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Affiliation(s)
- Hadi Mohsenpour
- Department of Pediatrics, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah 75333–67427, Iran;
| | - Mirko Pesce
- Department of Medicine and Aging Sciences, University G. d’Annunzio, 66100 Chieti, Italy
| | - Antonia Patruno
- Department of Medicine and Aging Sciences, University G. d’Annunzio, 66100 Chieti, Italy
| | - Azam Bahrami
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 67158-47141, Iran;
| | - Pardis Mohammadi Pour
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran;
| | - Mohammad Hosein Farzaei
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 67158-47141, Iran;
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Chen RJ, Wang YJ. Pterostilbene and cancer chemoprevention. Cancer 2021. [DOI: 10.1016/b978-0-12-819547-5.00040-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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56
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Tu Q, Le D, Wang C, Mao G. Pterostilbene attenuates ischemic stroke by modulating miR-21-5p/PDCD4 axis in vivo and in vitro. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Antibiofilm agent pterostilbene is able to enhance antibiotics action against Staphylococcus epidermidis. Microb Pathog 2020; 152:104632. [PMID: 33242645 DOI: 10.1016/j.micpath.2020.104632] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 02/02/2023]
Abstract
Pterostilbene (PTE) is a naturally occurring compound originally isolated from Pterocarpus spp. It has been widely used in traditional Indian medicine and later discovered to have various beneficial pharmacological effects such as antioxidant properties, hypoglycaemic or antitumor, and antimicrobial activity. This work is focused on demonstrating PTE synergistic effect with erythromycin and tetracycline to reduce their needed effective concentration for suppression of Staphylococcus epidermidis planktonic cells growth and biofilm formation. The secondary aim is to find these combinations effect on the production of its virulence factors. PTE was found to be effective in inhibition of its planktonic cells with MIC80 values 25-37.5 mg l-1. Simultaneously, it decreased the metabolic activity of biofilm cells and was especially effective on a clinical isolate (MBIC80 = 35 mg l-1) in contrast to the conventional antibiotics. In combination, PTE helped the antibiotics to overcome the tolerance of S. epidermidis biofilm cells (5 mg l-1 of each antibiotic with 49 mg l-1 PTE caused more than 85% inhibition of metabolic activity). It permeabilized cytoplasmic membrane of S. epidermidis cells and altered their surface hydrophobicity. Therefore, PTE has a great potential to enhance antibiotics action in the treatment of infections caused by this pathogen.
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Trepiana J, Krisa S, Portillo MP. Activity of Pterostilbene Metabolites against Liver Steatosis in Cultured Hepatocytes. Molecules 2020; 25:molecules25225444. [PMID: 33233676 PMCID: PMC7699812 DOI: 10.3390/molecules25225444] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/29/2020] [Accepted: 11/18/2020] [Indexed: 01/14/2023] Open
Abstract
Pterostilbene is a dimethyl ether derivative of resveratrol, less metabolized than its analogue, due to the substitution of two hydroxyl groups with methoxyl groups. Nevertheless, the amounts of pterostilbene phase II metabolites found in plasma and tissues are higher than those of the parent compound. The first aim of this study was to assess whether pterostilbene-4′-O-glucuronide (PT-G) and pterostilbene-4′-O-sulfate (PT-S) were able to prevent triglyceride accumulation in AML12 (alpha mouse liver 12) hepatocytes. This being the case, we aimed to analyze the mechanisms involved in their effects. For this purpose, an in vitro model mimicking the hepatocyte situation in fatty liver was developed by incubating mouse AML12 hepatocytes with palmitic acid (PA). For cell treatments, hepatocytes were incubated with 1, 10 or 25 µM of pterostilbene, pterostilbene-4′-O-glucuronide or pterostilbene-4′-O-sulfate for 18 h. Triglycerides and cell viability were assessed by a commercial kit and crystal violet assay, respectively. Protein expression of enzymes and transporters involved in triglyceride metabolism was analyzed by immunoblot. The results showed for the first time the anti-steatotic effect of pterostilbene metabolites and thus, that they contribute to the preventive effect induced by pterostilbene on steatosis in in vivo models. This anti-steatotic effect is mainly due to the inhibition of de novo lipogenesis.
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Affiliation(s)
- Jenifer Trepiana
- Nutrition and Obesity Group, Department of Nutrition and Food Science, Faculty of Pharmacy, University of Basque Country (UPV/EHU) and Lucio Lascaray Research Center, 01006 Vitoria-Gasteiz, Spain;
- BIOARABA Institute of Health, 01009 Vitoria-Gasteiz, Spain
- CIBEROBN Physiopathology of Obesity and Nutrition, Institute of Health Carlos III (ISCIII), 28029 Vitoria-Gasteiz, Spain
| | - Stéphanie Krisa
- Université de Bordeaux, UR Œnologie, MIB, EA 4577, USC 1366 INRA, 33882 Villenave d’Ornon, France;
| | - María Puy Portillo
- Nutrition and Obesity Group, Department of Nutrition and Food Science, Faculty of Pharmacy, University of Basque Country (UPV/EHU) and Lucio Lascaray Research Center, 01006 Vitoria-Gasteiz, Spain;
- BIOARABA Institute of Health, 01009 Vitoria-Gasteiz, Spain
- CIBEROBN Physiopathology of Obesity and Nutrition, Institute of Health Carlos III (ISCIII), 28029 Vitoria-Gasteiz, Spain
- Correspondence: ; Tel.: +34-945013067; Fax: +34-945013014
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Kim H, Seo KH, Yokoyama W. Chemistry of Pterostilbene and Its Metabolic Effects. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:12836-12841. [PMID: 32125846 DOI: 10.1021/acs.jafc.0c00070] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Pterostilbene, 3',5'-dimethoxy-4-hydroxystilbene, is a resveratrol analogue and has been reported to have similar and often potent health-promoting properties. Pterostilbene has been shown to reduce weight gain, liver fat, plasma cholesterol, adiposity, inflammatory biomarkers, blood glucose, and other physiological characteristics of metabolic diseases in animal models. Studies on pterostilbene suggest that it may improve risk factors associated with diabetes, cardiovascular disease, fatty liver diseases, Alzheimer's disease, and other neurodegenerative diseases. Many of the extensive studies on the potential health benefits of pterostilbene were conducted by Dr. Agnes Rimando, a scientist with the United States Department of Agriculture, in collaboration with many U.S. and other international research groups. This review highlights the pterostilbene research of Dr. Rimando.
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Affiliation(s)
- Hyunsook Kim
- Department of Food and Nutrition, Hanyang University, Seoul 133-791, South Korea
| | - Kun-Ho Seo
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 05029, South Korea
| | - Wallace Yokoyama
- Western Research Center, United States Departement of Agriculture (USDA), Albany, California 94719, United States
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Zhang J, Wang J, Fang H, Yu H, Zhao Y, Shen J, Zhou C, Jin Y. Pterostilbene inhibits deoxynivalenol-induced oxidative stress and inflammatory response in bovine mammary epithelial cells. Toxicon 2020; 189:10-18. [PMID: 33181164 DOI: 10.1016/j.toxicon.2020.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/19/2020] [Accepted: 11/08/2020] [Indexed: 12/16/2022]
Abstract
More and more studies have showed that tricothecene mycotoxin, deoxynivalenol (DON) caused cytotoxicity in mammary alveolar cells-large T antigen cells (MAC-T). Therefore, research on reducing the cytotoxicity of DON has gradually attracted attention. In this study, we aim to explore the potential of pterostilbene (PTE) to protect MAC-T cells from DON-induced oxidative stress and inflammatory response. MAC-T cells were treated with 0.25 μg/mL DON or 2.0504 μg/mL PTE or 0.25 μg/mL DON and 2.0504 μg/mL PTE together, incubated for 9 h. PTE effectively improved cell viability, cell proliferation and total antioxidant capacity (T-AOC), reduced reactive oxygen species (ROS) production and malondialdehyde (MDA), and improved glutathione (GSH) depletion. Moreover, PTE effectively regulated the mRNA levels of nuclear factor erythroid-2-related factor 2 (Nrf2), kelch-like ech-associated protein 1 (Keap1), superoxide dismutase 1 (SOD1) and superoxide dismutase 2 (SOD2). PTE significantly inhibited nuclear factor kappa-B P65 (NF-κB P65), nuclear factor kappa-B P50 (NF-κB P50), cyclooxygenase-2 (COX-2), interleukin-1β (IL-1β), interleukin-6 (IL-6) and monocyte chemotactic protein 1 (MCP-1) mRNA levels in DON-induced MAC-T cells. PTE also significantly reduced inducible nitric oxide synthase (iNOS) and nitric oxide (NO) levels in DON-induced MAC-T cells. Additionally, ELISA revealed that PTE inhibited the expression of tumor necrosis factor-α (TNF-α) and IL-6 proteins produced in DON-induced MAC-T cells. These findings together provided strong evidence to support that PTE can effectively alleviate the damage to cells caused by DON, and it may be used as an effective anti-inflammatory and antioxidant to prevent the damage of mycotoxins to the animal body.
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Affiliation(s)
- Jing Zhang
- College of Animal Sciences, Jilin University, Changchun, 130062, China; Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - JunMei Wang
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - HengTong Fang
- College of Animal Sciences, Jilin University, Changchun, 130062, China
| | - Hao Yu
- College of Animal Sciences, Jilin University, Changchun, 130062, China
| | - Yun Zhao
- College of Animal Sciences, Jilin University, Changchun, 130062, China
| | - JingLin Shen
- College of Animal Sciences, Jilin University, Changchun, 130062, China
| | - ChangHai Zhou
- College of Animal Sciences, Jilin University, Changchun, 130062, China
| | - YongCheng Jin
- College of Animal Sciences, Jilin University, Changchun, 130062, China.
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Recent Advances in Synthesis, Bioactivity, and Pharmacokinetics of Pterostilbene, an Important Analog of Resveratrol. Molecules 2020; 25:molecules25215166. [PMID: 33171952 PMCID: PMC7664215 DOI: 10.3390/molecules25215166] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/15/2022] Open
Abstract
Pterostilbene is a natural 3,5-dimethoxy analog of resveratrol. This stilbene compound has a strong bioactivity and exists widely in Dalbergia and Vaccinium spp. Besides natural extraction, pterostilbene can be obtained by biosynthesis. Pterostilbene has become popular because of its remarkable pharmacological activities, such as anti-tumor, anti-oxidation, anti-inflammation, and neuroprotection. Pterostilbene can be rapidly absorbed and is widely distributed in tissues, but it does not seriously accumulate in the body. Pterostilbene can easily pass through the blood-brain barrier because of its low molecular weight and good liposolubility. In this review, the studies performed in the last three years on resources, synthesis, bioactivity, and pharmacokinetics of pterostilbene are summarized. This review focuses on the effects of pterostilbene on certain diseases to explore its targets, explain the possible mechanism, and look for potential therapeutic applications.
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Surien O, Ghazali AR, Masre SF. Histopathological effect of pterostilbene as chemoprevention in N-nitroso-tri-chloroethylurea (NTCU)-induced lung squamous cell carcinoma (SCC) mouse model. Histol Histopathol 2020; 35:1159-1170. [PMID: 32893871 DOI: 10.14670/hh-18-247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Lung cancer is the leading cause of cancer-related deaths, and squamous cell carcinoma (SCC) is one of the most common types of lung cancer. Chemoprevention of lung cancer has gained increasing popularity as an alternative to treatment in reducing the burden of lung cancer. Pterostilbene (PS) may be developed as a chemopreventive agent due to its pharmacological activities, such as anti-proliferative, anti-inflammatory and antioxidant properties. This study aimed to investigate the effect of PS on the development of lung SCC in the mouse model. METHODS A total of 24 seven-week-old female Balb/C mice were randomly categorised into four groups, including two control groups comprising the N-nitroso-trischloroethylurea (NTCU)-induced lung SCC and vehicle control (VC) groups and two treatment groups comprising the 10mg/kg PS (PS10) and 50mg/kg PS (PS50) groups. All lung organs were harvested at week 26 for histopathological analysis. RESULTS All PS treatment groups showed chemopreventive activity by inhibiting the progression of lung SCC formation with PS10, resulting in mild hyperplasia, and PS50 was completely reversed in the normal bronchial epithelium layer compared with the VC group. PS treatment also reduced the expression of cytokeratin 5/6 in the bronchial epithelium layer. Both PS10 and PS50 significantly reduced the epithelium thickness compared to the NTCU group (p<0.05). PS is a potential chemopreventive agent against lung SCC growth by suppressing the progression of pre-malignant lesions and reducing the thickness of the bronchial epithelium. CONCLUSIONS The underlying molecular mechanisms of PS in lung SCC should be further studied.
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Affiliation(s)
- Omchit Surien
- Biomedical Science Programme, Centre for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur
| | - Ahmad Rohi Ghazali
- Biomedical Science Programme, Centre for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur
| | - Siti Fathiah Masre
- Biomedical Science Programme, Centre for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur.
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Zhang E, Huang J, Wang K, Yu Q, Zhu C, Ren H. Pterostilbene Protects Against Lipopolysaccharide/D-Galactosamine-Induced Acute Liver Failure by Upregulating the Nrf2 Pathway and Inhibiting NF- κB, MAPK, and NLRP3 Inflammasome Activation. J Med Food 2020; 23:952-960. [PMID: 32701014 DOI: 10.1089/jmf.2019.4647] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The purpose of this study was to evaluate the protective effect of pterostilbene (Psb) against lipopolysaccharide and D-galactosamine (L/D)-induced acute liver failure (ALF) in mice and its potential mechanisms. Histology of liver was detected by H&E staining. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels in serum and malondialdehyde (MDA), myeloperoxidase (MPO), glutathione (GSH), and superoxide dismutase (SOD) contents in liver were examined using detection kits. The levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β) secretion were detected by ELISA. Meanwhile, MAPK, NF-κB, NLRP3 inflammasome, and Nrf2 were assessed by western blotting. Our findings showed that pretreatment with Psb protected against L/D-induced ALF by lowering the lethality, improving liver histology, reducing ALT, AST, IL-6, IL-1β, TNF-α, MDA, and MPO levels, and boosting liver GSH content and SOD activity. Moreover, Psb pretreatment effectively suppressed inflammation by decreasing NLRP3 inflammasome, MAPK, and NF-κB pathway activations. Moreover, Psb pretreatment efficiently enhanced the expression of several antioxidant enzymes, mainly depending on Nrf2 activation. This was the first study to demonstrate that Psb protects against L/D-induced ALF by inactivating MAPK, NF-κb, and NLRP3 inflammasome and upregulating the Nrf2 signaling pathway, indicating a potential therapeutic application for ALF treatment.
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Affiliation(s)
- Erli Zhang
- Department of Traditional Chinese Medicine, The First Hospital of Jilin University, Changchun, China
| | - Jingbo Huang
- Department of Traditional Chinese Medicine, The First Hospital of Jilin University, Changchun, China
| | - Kun Wang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China
| | - Qinlei Yu
- Jilin Provincial Animal Disease Control Center, Changchun, China
| | - Chao Zhu
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China
| | - Hua Ren
- Department of Ophthalmology, The First Hospital of Jilin University, Changchun, China
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Vaňková E, Paldrychová M, Kašparová P, Lokočová K, Kodeš Z, Maťátková O, Kolouchová I, Masák J. Natural antioxidant pterostilbene as an effective antibiofilm agent, particularly for gram-positive cocci. World J Microbiol Biotechnol 2020; 36:101. [DOI: 10.1007/s11274-020-02876-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 06/21/2020] [Indexed: 02/07/2023]
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65
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Zhang H, Chen Y, Chen Y, Ji S, Jia P, Li Y, Wang T. Comparison of the protective effects of resveratrol and pterostilbene against intestinal damage and redox imbalance in weanling piglets. J Anim Sci Biotechnol 2020; 11:52. [PMID: 32514341 PMCID: PMC7262760 DOI: 10.1186/s40104-020-00460-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 04/13/2020] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Evidence indicates that early weaning predisposes piglets to intestinal oxidative stress and increases the risk of intestinal dysfunction; however, there are minimal satisfactory treatment strategies for these conditions. This study investigated the potential of resveratrol and its analog, pterostilbene, as antioxidant protectants for regulating intestinal morphology, barrier function, and redox status among weanling piglets. METHODS A total of 144 piglets were selected at 21 days of age and randomly allocated into one of four treatment groups, each of which included six replicates. Piglets in a sow-reared control group were suckling normally between ages 21 and 28 days, while those in weaned groups were fed a basal diet, supplemented with either 300 mg/kg of resveratrol or with 300 mg/kg of pterostilbene. Parameters associated with intestinal injury and redox status were analyzed at the end of the feeding trial. RESULTS Early weaning disrupted the intestinal function of young piglets, with evidence of increased diamine oxidase activity and D-lactate content in the plasma, shorter villi, an imbalance between cell proliferation and apoptosis, an impaired antioxidant defense system, and severe oxidative damage in the jejunum relative to suckling piglets. Feeding piglets with a resveratrol-supplemented diet partially increased villus height (P = 0.056) and tended to diminish apoptotic cell numbers (P = 0.084) in the jejunum compared with those fed a basal diet. Similarly, these beneficial effects were observed in the pterostilbene-fed piglets. Pterostilbene improved the feed efficiency of weanling piglets between the ages of 21 and 28 days; it also resulted in diminished plasma diamine oxidase activity and D-lactate content relative to untreated weaned piglets (P < 0.05). Notably, pterostilbene restored jejunal antioxidant capacity, an effect that was nearly absent in the resveratrol-fed piglets. Pterostilbene reduced the malondialdehyde and 8-hydroxy-2´-deoxyguanosine contents of jejunal mucosa possibly through its regulatory role in facilitating the nuclear translocation of nuclear factor erythroid-2-related factor 2 and the expression levels of NAD(P)H quinone dehydrogenase 1 and superoxide dismutase 2 (P < 0.05). CONCLUSIONS The results indicate that pterostilbene may be more effective than its parent compound in alleviating early weaning-induced intestinal damage and redox imbalance among young piglets.
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Affiliation(s)
- Hao Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
- Postdoctoral Research Station of Clinical Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
- Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai, 200240 China
| | - Yanan Chen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
| | - Yueping Chen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
- Postdoctoral Research Station of Food Science and Engineering, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
| | - Shuli Ji
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
| | - Peilu Jia
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
| | - Yue Li
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014 China
| | - Tian Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
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Zeng Q, Lian W, Wang G, Qiu M, Lin L, Zeng R. Pterostilbene induces Nrf2/HO-1 and potentially regulates NF-κB and JNK-Akt/mTOR signaling in ischemic brain injury in neonatal rats. 3 Biotech 2020; 10:192. [PMID: 32269897 DOI: 10.1007/s13205-020-02167-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 03/15/2020] [Indexed: 01/02/2023] Open
Abstract
Hypoxic-ischemic (HI) brain injury has a high occurrence rate of 1-4 per 1000 live births and is the leading cause of neurological disabilities. Despite the improvement in neonatal care, the effectiveness of current therapeutic strategies is limited, and thus, additional therapies with better results are of much needed. Pterostilbene is a stilbenoid possessing numerous preventive and therapeutic properties. The current study aimed to assess whether pterostilbene exerted protective effects in neonatal rats against experimentally induced ischemic brain injury. Pterostilbene was administered via oral gavage from postnatal day 3 to day 8. Rat pups that were seven-day-old were exposed to hypoxic-ischemic insult via ligation of the common carotid artery and hypoxic environment exposure. Pterostilbene treatment reduced neuronal loss and infarct volume. Pterostilbene administration regulated the NF-κB pathway, and the levels of inflammatory mediators (Nitric oxide, TNF-α, IL-1β, and IL-6) were reduced. HI-induced oxidative stress was significantly reduced by pterostilbene, as presented by decreased production of malondialdehyde and reactive oxygen species. Levels of glutathione were enhanced by pterostilbene. Pterostilbene regulated Nrf2/HO-1 and JNK expression and activated the PI3K/Akt-mTOR signals. These findings suggest that pterostilbene is a candidate compound for the treatment of neonatal HI.
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Affiliation(s)
- Qinghuang Zeng
- 1Department of Paediatrics, The Affiliated Hospital (Group) of Putian University, Putian, 351100 Fujian China
- Department of Pediatric Neurological Rehabilitation, Putian Children's Hospital, Putian, 351100 Fujian China
| | - Wenchang Lian
- 1Department of Paediatrics, The Affiliated Hospital (Group) of Putian University, Putian, 351100 Fujian China
- Department of Pediatric Neurological Rehabilitation, Putian Children's Hospital, Putian, 351100 Fujian China
| | - Guizhi Wang
- 1Department of Paediatrics, The Affiliated Hospital (Group) of Putian University, Putian, 351100 Fujian China
- Department of Pediatric Neurological Rehabilitation, Putian Children's Hospital, Putian, 351100 Fujian China
| | - Manping Qiu
- 1Department of Paediatrics, The Affiliated Hospital (Group) of Putian University, Putian, 351100 Fujian China
- Department of Pediatric Neurological Rehabilitation, Putian Children's Hospital, Putian, 351100 Fujian China
| | - Lingmu Lin
- 1Department of Paediatrics, The Affiliated Hospital (Group) of Putian University, Putian, 351100 Fujian China
- Department of Pediatric Neurological Rehabilitation, Putian Children's Hospital, Putian, 351100 Fujian China
| | - Renhe Zeng
- 1Department of Paediatrics, The Affiliated Hospital (Group) of Putian University, Putian, 351100 Fujian China
- Department of Pediatric Neurological Rehabilitation, Putian Children's Hospital, Putian, 351100 Fujian China
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Wang L, Zhao H, Wang L, Tao Y, Du G, Guan W, Liu J, Brennan C, Ho CT, Li S. Effects of Selected Resveratrol Analogues on Activation and Polarization of Lipopolysaccharide-Stimulated BV-2 Microglial Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:3750-3757. [PMID: 32125844 DOI: 10.1021/acs.jafc.0c00498] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Increasing health-promoting effects of resveratrol and its molecular structural analogues have been discovered, and the acting mechanism has been explored. However, the activity comparison of such compounds in targeting macrophage-related inflammation associated with neurodegenerative diseases remains untouched. In this study, we evaluated the activation and polarization transition of lipopolysaccharide (LPS)-stimulated BV-2 mouse microglial macrophages exposed to resveratrol (RES) and its analogues pterostilbene (PTE), oxyresveratrol (ORES), acetyl-trans-resveratrol (ARES), and trans-2,3,5,4'-tetrahydroxystilbene-2-O-glucopyranoside (TSG). At 10 μM, all of the five stilbene compounds have effectively suppressed the LPS-stimulated BV-2 cell release of proinflammatory mediators such as NO, TNF-α, iNOS, IL-1β, and IL-6. Mechanism study elucidated that they exert anti-inflammatory effects through MAPKs (ERK1/2, JNK, and p38) and NF-κB signaling pathways. Further investigation in treating BV-2 cells with resveratrol and its analogues revealed the reversal of LPS-induced phenotype molecules from M1 (iNOS, IL-1β, IL-6, and CD86) to M2 (Arg1, CD163, and IL-10) subtypes, manifesting that these five stilbenes suppressed inflammation through modulating the polarized phenotypes of BV-2 microglia. Most importantly, PTE demonstrated the most potent inhibitory activity among these five stilbene compounds. Therefore, this study not only highlights microglia-induced inflammatory responses as a potential therapeutic target but also suggests future insights in considering the options of nutraceutical development for resveratrol and its analogues.
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Affiliation(s)
- Liang Wang
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Hui Zhao
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Liwen Wang
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China
- Centre for Food Research and Innovation, Department of Wine, Food and Molecular Bioscience, Lincoln University, Lincoln 7647, New Zealand
| | - Yongqing Tao
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Gang Du
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Wenqiang Guan
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Jianfu Liu
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Charles Brennan
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China
- Centre for Food Research and Innovation, Department of Wine, Food and Molecular Bioscience, Lincoln University, Lincoln 7647, New Zealand
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901, United States
| | - Shiming Li
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources, Huanggang Normal University, Huanggang 438000, Hubei, China
- Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901, United States
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Garbicz D, Tobiasz P, Borys F, Pilżys T, Marcinkowski M, Poterała M, Grzesiuk E, Krawczyk H. The stilbene and dibenzo[b,f]oxepine derivatives as anticancer compounds. Biomed Pharmacother 2020; 123:109781. [DOI: 10.1016/j.biopha.2019.109781] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/27/2019] [Accepted: 12/04/2019] [Indexed: 02/08/2023] Open
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Peñalver P, Zodio S, Lucas R, de-Paz MV, Morales JC. Neuroprotective and Anti-inflammatory Effects of Pterostilbene Metabolites in Human Neuroblastoma SH-SY5Y and RAW 264.7 Macrophage Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:1609-1620. [PMID: 31957426 DOI: 10.1021/acs.jafc.9b07147] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Oxidative stress is known to be a key factor in many neurodegenerative diseases. Inflammation also plays a relevant role in a myriad of pathologies such as diabetes and atherosclerosis. Polyphenols coming from dietary sources, such as pterostilbene, may be beneficial in this type of diseases. However, most of them are rapidly metabolized and excreted, yielding very low phenolic bioavailability what makes it difficult to find out which are the mechanisms responsible for the observed bioactivity. Herein, we evaluate the effects of pterostilbene and its metabolites against H2O2-induced cell damage in human neuroblastoma SH-SY5Y cells and against lipopolysaccharide (LPS)-challenged RAW 264.7 macrophages. Among the metabolites tested, 3-methyl-4'-glucuronate-resveratrol (also called 4'-glucuronate pinostilbene, PIN-GlcAc, 11) prevented neuronal death via attenuation of reactive oxygen species (ROS) levels and increased REDOX activity in neurons. This compound is also able to ameliorate LPS-mediated inflammation on macrophages via inhibition of IL-6 and NO production. Thus, polyphenol from dietary sources could be part of potential functional foods designed to ameliorate the onset and progression of certain neurodegenerative diseases via oxidative stress reduction.
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Affiliation(s)
- Pablo Peñalver
- Department of Biochemistry and Molecular Pharmacology , Instituto de Parasitología y Biomedicina López Neyra, CSIC , PTS Granada, Avda. del Conocimiento, 17 , 18016 Armilla , Granada , Spain
| | - Sonia Zodio
- Department of Biochemistry and Molecular Pharmacology , Instituto de Parasitología y Biomedicina López Neyra, CSIC , PTS Granada, Avda. del Conocimiento, 17 , 18016 Armilla , Granada , Spain
| | - Ricardo Lucas
- Department of Organic and Pharmaceutical Chemistry, School of Pharmacy , University of Seville , c/Prof. García González, 2 , 41012 Seville , Spain
| | - María Violante de-Paz
- Department of Organic and Pharmaceutical Chemistry, School of Pharmacy , University of Seville , c/Prof. García González, 2 , 41012 Seville , Spain
| | - Juan Carlos Morales
- Department of Biochemistry and Molecular Pharmacology , Instituto de Parasitología y Biomedicina López Neyra, CSIC , PTS Granada, Avda. del Conocimiento, 17 , 18016 Armilla , Granada , Spain
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70
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Carrera-Juliá S, Moreno ML, Barrios C, de la Rubia Ortí JE, Drehmer E. Antioxidant Alternatives in the Treatment of Amyotrophic Lateral Sclerosis: A Comprehensive Review. Front Physiol 2020; 11:63. [PMID: 32116773 PMCID: PMC7016185 DOI: 10.3389/fphys.2020.00063] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 01/21/2020] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease that produces a selective loss of the motor neurons of the spinal cord, brain stem and motor cortex. Oxidative stress (OS) associated with mitochondrial dysfunction and the deterioration of the electron transport chain has been shown to be a factor that contributes to neurodegeneration and plays a potential role in the pathogenesis of ALS. The regions of the central nervous system affected have high levels of reactive oxygen species (ROS) and reduced antioxidant defenses. Scientific studies propose treatment with antioxidants to combat the characteristic OS and the regeneration of nicotinamide adenine dinucleotide (NAD+) levels by the use of precursors. This review examines the possible roles of nicotinamide riboside and pterostilbene as therapeutic strategies in ALS.
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Affiliation(s)
- Sandra Carrera-Juliá
- Doctoral Degree’s School, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
- Department of Nutrition and Dietetics, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
| | - Mari Luz Moreno
- Department of Basic Sciences, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
| | - Carlos Barrios
- Institute for Research on Musculoskeletal Disorders, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
| | | | - Eraci Drehmer
- Department of Basic Sciences, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
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Small molecule inhibitors and stimulators of inducible nitric oxide synthase in cancer cells from natural origin (phytochemicals, marine compounds, antibiotics). Biochem Pharmacol 2020; 176:113792. [PMID: 31926145 DOI: 10.1016/j.bcp.2020.113792] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 01/03/2020] [Indexed: 02/06/2023]
Abstract
Nitric oxide synthases (NOS) are a family of isoforms, which generate nitric oxide (NO). NO is one of the smallest molecules in nature and acts mainly as a potent vasodilator. It participates in various biological processes ranging from physiological to pathological conditions. Inducible NOS (iNOS, NOS2) is a calcium-independent and inducible isoform. Despite high iNOS expression in many tumors, the role of iNOS is still unclear and complex with both enhancing and prohibiting actions in tumorigenesis. Nature presents a broad variety of natural stimulators and inhibitors, which may either promote or inhibit iNOS response. In the present review, we give an overview of iNOS-modulating agents with a special focus on both natural and synthetic molecules and their effects in related biological processes. The role of iNOS in physiological and pathological conditions is also discussed.
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72
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Pterostilbene Attenuates Fructose-Induced Myocardial Fibrosis by Inhibiting ROS-Driven Pitx2c/miR-15b Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1243215. [PMID: 31871537 PMCID: PMC6913258 DOI: 10.1155/2019/1243215] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 11/04/2019] [Indexed: 12/26/2022]
Abstract
Excessive fructose consumption induces oxidative stress and myocardial fibrosis. Antioxidant compound pterostilbene has cardioprotective effect in experimental animals. This study is aimed at investigating how fructose drove fibrotic responses via oxidative stress in cardiomyocytes and explored the attenuation mechanisms of pterostilbene. We observed fructose-induced myocardial hypertrophy and fibrosis with ROS overproduction in rats. Paired-like homeodomain 2 (Pitx2c) increase, microRNA-15b (miR-15b) low expression, and p53 phosphorylation (p-p53) upregulation, as well as activation of transforming growth factor-β1 (TGF-β1)/drosophila mothers against DPP homolog (Smads) signaling and connective tissue growth factor (CTGF) induction, were also detected in fructose-fed rat hearts and fructose-exposed rat myocardial cell line H9c2 cells. The results from p53 siRNA or TGF-β1 siRNA transfection showed that TGF-β1-induced upregulation of CTGF expression and p-p53 activated TGF-β1/Smads signaling in fructose-exposed H9c2 cells. Of note, Pitx2c negatively modulated miR-15b expression via binding to the upstream of the miR-15b genetic loci by chromatin immunoprecipitation and transfection analysis with pEX1-Pitx2c plasmid and Pitx2c siRNA, respectively. In H9c2 cells pretreated with ROS scavenger N-acetylcysteine, or transfected with miR-15b mimic and inhibitor, fructose-induced cardiac ROS overload could drive Pitx2c-mediated miR-15b low expression, then cause p-p53-activated TGF-β1/Smads signaling and CTGF induction in myocardial fibrosis. We also found that pterostilbene significantly improved myocardial hypertrophy and fibrosis in fructose-fed rats and fructose-exposed H9c2 cells. Pterostilbene reduced cardiac ROS to block Pitx2c-mediated miR-15b low expression and p-p53-dependent TGF-β1/Smads signaling activation and CTGF induction in high fructose-induced myocardial fibrosis. These results firstly demonstrated that the ROS-driven Pitx2c/miR-15b pathway was required for p-p53-dependent TGF-β1/Smads signaling activation in fructose-induced myocardial fibrosis. Pterostilbene protected against high fructose-induced myocardial fibrosis through the inhibition of Pitx2c/miR-15b pathway to suppress p-p53-activated TGF-β1/Smads signaling, warranting the consideration of Pitx2c/miR-15b pathway as a therapeutic target in myocardial fibrosis.
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73
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Salehi B, Vlaisavljevic S, Adetunji CO, Adetunji JB, Kregiel D, Antolak H, Pawlikowska E, Uprety Y, Mileski KS, Devkota HP, Sharifi-Rad J, Das G, Patra JK, Jugran AK, Segura-Carretero A, Contreras MDM. Plants of the genus Vitis: Phenolic compounds, anticancer properties and clinical relevance. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.07.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Malik SA, Acharya JD, Mehendale NK, Kamat SS, Ghaskadbi SS. Pterostilbene reverses palmitic acid mediated insulin resistance in HepG2 cells by reducing oxidative stress and triglyceride accumulation. Free Radic Res 2019; 53:815-827. [PMID: 31223033 DOI: 10.1080/10715762.2019.1635252] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Insulin resistance (IR) is known to precede onset of type 2 diabetes and increased oxidative stress appears to be a deleterious factor leading to IR. In this study, we evaluated ability of pterostilbene (PTS), a methoxylated analogue of resveratrol and a known antioxidant, to reverse palmitic acid (PA)-mediated IR in HepG2 cells. PTS prevented reactive oxygen species (ROS) formation and subsequent oxidative lipid damage by reducing the expression of NADPH oxidase 3 (NOX3) in PA treated HepG2 cells. Hepatic glucose production was used as a measure of IR and PTS reversed PA-mediated increase in hepatic glucose production by reducing expression of genes coding for gluconeogenic enzymes namely glucose-6-phosphatase (G6Pase), phosphoenolpyruvate carboxykinase (PEPCK), and pyruvate carboxylase (PC); and their transcription factors cAMP response element binding protein (CREB) and fork head class Box O (FOXO1) along with its coactivator peroxisome proliferator-activated receptor gamma co-activator-1 α (PGC1α). PTS reversed PA-mediated activation of c-Jun N-terminal kinase (JNK), which in turn altered insulin signalling pathway by phosphorylating IRS-1 at Ser 307, leading to inhibition of phosphorylation of Akt and GSK-3β. PTS also reduced PA-mediated lipid accumulation by reducing expression of transcription factors SREBP1c and PPARα. SREBP1c activates genes involved in fatty acid and triglyceride synthesis while PPARα activates CPT1, a rate limiting enzyme for controlling entry and oxidation of fatty acids into mitochondria. PTS, however, did not influence PA uptake confirmed by using BODIPY-labelled fluorescent C16 fatty acid analogue. Thus, our data provides a possible mechanistic explanation for reversal of PA-mediated IR in HepG2 cells.
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Affiliation(s)
- Sajad Ahmad Malik
- a Department of Zoology, Savitribai Phule Pune University , Pune , India
| | - Jhankar D Acharya
- a Department of Zoology, Savitribai Phule Pune University , Pune , India
| | - Neelay K Mehendale
- b Department of Biology, Indian Institute of Science Education and Research , Pune , India
| | - Siddhesh S Kamat
- b Department of Biology, Indian Institute of Science Education and Research , Pune , India
| | - Saroj S Ghaskadbi
- a Department of Zoology, Savitribai Phule Pune University , Pune , India
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Krawczyk H. The stilbene derivatives, nucleosides, and nucleosides modified by stilbene derivatives. Bioorg Chem 2019; 90:103073. [PMID: 31234131 DOI: 10.1016/j.bioorg.2019.103073] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/23/2019] [Accepted: 06/15/2019] [Indexed: 12/31/2022]
Abstract
In this short review, including 187 references, the issues of biological activity of stilbene derivatives and nucleosides and the biological and medicinal potential of fusion of these two classes are discussed. The stilbenes, especially the stilbenoids, and nucleosides are both biologically active. Hybrids formed from binding of these compounds have not yet been broadly studied. However, those that have been investigated exhibit desirable medicinal properties. The review is divided in such parts: I. Derivative of stilbene (biomedical investigations, biological activities in cells, enzymes and hazard), parts II. naturally occurred nucleoside and its derivatives: uridine, thymidine and 5-methyluridine, cytidine, adenosine, guanosine and part III. hybrid molecules- drugs and hybrid molecules- nucleoside - stilbene and its derivative.
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Affiliation(s)
- Hanna Krawczyk
- Department of Organic Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland.
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Jinadatta P, Rajshekarappa S, Sundera Raja Rao K, Pasura Subbaiah SG, Shastri S. In silico, in vitro: antioxidant and antihepatotoxic activity of gnetol from Gnetum ula Brongn. ACTA ACUST UNITED AC 2019; 9:239-249. [PMID: 31799160 PMCID: PMC6879709 DOI: 10.15171/bi.2019.29] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/14/2019] [Accepted: 04/22/2019] [Indexed: 11/24/2022]
Abstract
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Introduction:Gnetum ula is a notable medicinal plant used to cure various ailments. The stem part of the plant is used traditionally to treat jaundice and other disorders. The present work is to investigate the in vitro hepatoprotective and antioxidant activity of ethanol extract of stem of G. ula (GUE) and its isolated compound gnetol.
Methods: Column chromatography was carried out for GUE and various column fractions were obtained. DPPH and reducing power assays were performed for GUE and column fractions. The potent fraction was characterized, interpreted and tested for in vitro hepatoprotective activity on the BRL3A cell line. In silico docking studies of gnetol compound on the protein TGF-β (transforming growth factor – β) and Peroxisome proliferator-activated receptor α (PPARα) was carried out.
Results: DPPH scavenging and reducing power assay showed that the fourth column fraction has antioxidant potential than other fractions. The fourth column fraction was characterized to obtain gnetol compound. BRL3A cell line was used for the toxicity study of GUE and gnetol. Both, the extract and the isolated compound were found to be nontoxic with CTC50 value more than 1000 µg/mL. At the concentration of 200 µg/mL, GUE and gnetol offered cell protection of 50.2% and 54.3%, however, silymarin showed 77.15% protection at 200 µg/mL concentration against CCl4 treated BRL3A cell line. The docking results of the ligand molecule TGF-β showed that gnetol has the binding affinity of -7.0 and standard silymarin being -6.8. TGF-β showed good hydrophobic interactions and formed two hydrogen bonds with the amino acids. For PPARα protein, gnetol showed the binding affinity of -8.4 and silymarin with -6.5. Hydrogen bonding and good hydrophobic interactions against the amino acid molecules in relation to the PPARα protein are shown.
Conclusion:Gnetum ula stem extract and its isolated compound are safe and offered significant hepatoprotection against CCl4 induced toxicity. Isolated compound gnetol exhibited a potent antioxidant activity offering protection to liver damage. However, in vivo studies need to be carried out to validate the traditional use of G. ula .
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Affiliation(s)
- Preetham Jinadatta
- Department of Biotechnology, Dayananda Sagar College of Engineering, Kumaraswamy Layout-Bangalore-560078, Karnataka, India
| | - Sharath Rajshekarappa
- Department of Food Technology, Davangere University, Shivagangotri, Davangere -577007, Karnataka, India
| | - Kiran Sundera Raja Rao
- Department of Biotechnology, Dayananda Sagar College of Engineering, Kumaraswamy Layout-Bangalore-560078, Karnataka, India
| | - Sujan Ganapathy Pasura Subbaiah
- Research and Development Centre, Nutrinorm Wellness Private Limited, Sahakar Nagar, Byatarayanapura, Bengaluru, Karnataka 560092, India
| | - Sudhesh Shastri
- Department of Biotechnology, Kuvempu University, Jnanasahyadri, Shankaraghatta, Shimoga, Karnataka -57745, India
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Imaging Flow Cytometric Analysis of Stilbene-Dependent Apoptosis in Drug Resistant Human Leukemic Cell Lines. Molecules 2019; 24:molecules24101896. [PMID: 31108853 PMCID: PMC6571880 DOI: 10.3390/molecules24101896] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/03/2019] [Accepted: 05/16/2019] [Indexed: 01/08/2023] Open
Abstract
Background: The natural compounds have been researched extensively as an alternative to the conventional chemotherapy and radiation. Stilbene derivatives appear as a group of therapeutics which deserves special attention. The present study was designed to analyze the effects of stilbene derivatives on drug resistant human leukemic cells. The aim of this work was to evaluate the apoptotic effect of stilbene derivatives in various concentrations on leukemic cells (LC) with and without resistant phenotype. Methods: Human acute promyelocytic leukemia (APL) cell lines (HL60, HL60/MX1, HL60/MX2) and acute lymphoblastic leukemia (ALL) cell lines (CEM/C1, CCRF-CEM) were studied. T-resveratrol, piceatannol, rhaponticin, deoxyrhaponticin, pterostilbene were used to stimulate apoptosis. Mitoxantrone (MIT) was applied to induce drug resistance. Results: t-Resveratrol (RES), deoxyrhaponticin (D-RHAP), rhaponticin (RHAP), pterostilbene (PTER), and piceatannol (PIC) influenced viability and induced apoptosis in all investigated cell lines. Conclusions: Our results confirmed that RES, PIC, RHAP, D-RHAP, and PTER are essential therapeutic compounds with anticancer activity exhibited by induction of apoptosis in leukemic cells with and without resistant phenotype. Stilbene-induced apoptosis in HL60/MX1, HL60/MX2, CEM/C1, and CCRF-CEM leukemia cell lines have been presented in very few studies so far and our research is an important contribution to the investigation of these substances.
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Ke L, Zhu G, Qian H, Xiang G, Chen Q, Chen Z. Catalytic Selective Oxidative Coupling of Secondary N-Alkylanilines: An Approach to Azoxyarene. Org Lett 2019; 21:4008-4013. [DOI: 10.1021/acs.orglett.9b01200] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lei Ke
- School of Pharmacy, Huazhong University of Science and Technology (HUST), 13 Hangkong Road, Wuhan, Hubei 430030, P.R. China
| | - Guirong Zhu
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P.R. China
| | - Hui Qian
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P.R. China
| | - Guangya Xiang
- School of Pharmacy, Huazhong University of Science and Technology (HUST), 13 Hangkong Road, Wuhan, Hubei 430030, P.R. China
| | - Qin Chen
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P.R. China
| | - Zhilong Chen
- School of Pharmacy, Huazhong University of Science and Technology (HUST), 13 Hangkong Road, Wuhan, Hubei 430030, P.R. China
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High-yield production of multiple O-methylated phenylpropanoids by the engineered Escherichia coli-Streptomyces cocultivation system. Microb Cell Fact 2019; 18:67. [PMID: 30971246 PMCID: PMC6456975 DOI: 10.1186/s12934-019-1118-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 04/03/2019] [Indexed: 11/30/2022] Open
Abstract
Background O-Methylated phenylpropanoids, which are generally present in small amounts in plants, have improved or distinct biological activities and pharmacological properties as opposed to their unmethylated counterparts. Although microbial production could be a useful tool for the efficient and environment-friendly production of methylated phenylpropanoids, a high-yield microbial production of neither tri-methylated stilbenes nor di-/tri-methylated flavonoids has been achieved to date. Results A methyltransferase from Streptomyces avermitilis (SaOMT2), which has been known to possess 7-O-methylation activity toward several flavonoids, exhibited more diverse regiospecificity and catalyzed mono-, di-, and tri-methylation of stilbene, flavanone, and flavone when it was expressed in Streptomyces venezuelae. For the efficient production of multi-methylated phenylpropanoids, a cocultivation system was developed by employing engineered Escherichia coli strains producing pterostilbene, naringenin, and apigenin, respectively, along with SaOMT2-expressing S. venezuelae mutant. Consequently, high-yield microbial production of tri-methylated stilbenes and di-/tri-methylated flavonoids (including 3,5,4′-trimethoxystilbene, 5-hydroxy-7,4′-dimethoxyflavanone, 4′-hydroxy-5,7-dimethoxyflavanone, 5,7,4′-trimethoxyflavanone, 5-hydroxy-7,4′-dimethoxyflavone, and 5,7,4′-trimethoxyflavone) has been demonstrated for the first time. Conclusions This cocultivation system based on the phenylpropanoid-producing E. coli and SaOMT2-expressing S. venezuelae provides an efficient tool for producing scarce and potentially valuable multi-methylated phenylpropanoids and will enable further development of these compounds as pharmaceuticals and nutraceuticals. Electronic supplementary material The online version of this article (10.1186/s12934-019-1118-9) contains supplementary material, which is available to authorized users.
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80
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Leonida M, Belbekhouche S, Adams F, Bijja UK, Choudhary DA, Kumar I. Enzyme nanovehicles: Histaminase and catalase delivered in nanoparticulate chitosan. Int J Pharm 2019; 557:145-153. [DOI: 10.1016/j.ijpharm.2018.12.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 12/11/2018] [Accepted: 12/21/2018] [Indexed: 11/28/2022]
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Zhang Z, Hamada H, Gerk PM. Selectivity of Dietary Phenolics for Inhibition of Human Monoamine Oxidases A and B. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8361858. [PMID: 30809547 PMCID: PMC6364133 DOI: 10.1155/2019/8361858] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/12/2018] [Accepted: 12/31/2018] [Indexed: 01/07/2023]
Abstract
Monoamine oxidases (MAOs) regulate local levels of neurotransmitters such as dopamine, norepinephrine, and serotonin and thus have been targeted by drugs for the treatment of certain CNS disorders. However, recent studies have shown that these enzymes are upregulated with age in nervous and cardiac tissues and may be involved in degeneration of these tissues, since their metabolic mechanism releases hydrogen peroxide leading to oxidative stress. Thus, targeting these enzymes may be a potential anti-aging strategy. The purpose of this study was to compare the MAO inhibition and selectivity of selected dietary phenolic compounds, using a previously validated assay that would avoid interference from the compounds. Kynuramine metabolism by human recombinant MAO-A and MAO-B leads to formation of 4-hydroxyquinoline, with Vmax values of 10.2±0.2 and 7.35±0.69 nmol/mg/min, respectively, and Km values of 23.1±0.8 μM and 18.0±2.3 μM, respectively. For oral dosing and interactions with the gastrointestinal tract, curcumin, guaiacol, isoeugenol, pterostilbene, resveratrol, and zingerone were tested at their highest expected luminal concentrations from an oral dose. Each of these significantly inhibited both enzymes except for zingerone, which only inhibited MAO-A. The IC50 values were determined, and selectivity indices (MAO-A/MAO-B IC50 ratios) were calculated. Resveratrol and isoeugenol were selective for MAO-A, with IC50 values of 0.313±0.008 and 3.72±0.20 μM and selectivity indices of 50.5 and 27.4, respectively. Pterostilbene was selective for MAO-B, with IC50 of 0.138±0.013 μM and selectivity index of 0.0103. The inhibition of resveratrol (MAO-A) and pterostilbene (MAO-B) was consistent with competitive time-independent mechanisms. Resveratrol 4'-glucoside was the only compound which inhibited MAO-A, but itself, resveratrol 3-glucoside, and pterostilbene 4'-glucoside failed to inhibit MAO-B. Additional studies are needed to establish the effects of these compounds on MAO-A and/or MAO-B in humans.
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Affiliation(s)
- Zhenxian Zhang
- Virginia Commonwealth University School of Pharmacy, Department of Pharmaceutics, 410 N. 12 Street, Richmond, VA 23298-0533, USA
| | - Hiroki Hamada
- Department of Life Science, Okayama University of Science, 1-1 Ridai-cho Kita-ku Okayama, 700-0005, Japan
| | - Phillip M. Gerk
- Virginia Commonwealth University School of Pharmacy, Department of Pharmaceutics, 410 N. 12 Street, Richmond, VA 23298-0533, USA
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Kang KY, Shin JK, Lee SM. Pterostilbene protects against acetaminophen-induced liver injury by restoring impaired autophagic flux. Food Chem Toxicol 2019; 123:536-545. [DOI: 10.1016/j.fct.2018.12.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 12/07/2018] [Accepted: 12/08/2018] [Indexed: 12/27/2022]
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83
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Wu J, Li M, He J, Lv K, Wang M, Guan W, Liu J, Tao Y, Li S, Ho CT, Zhao H. Protective effect of pterostilbene on concanavalin A-induced acute liver injury. Food Funct 2019; 10:7308-7314. [DOI: 10.1039/c9fo01405e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Pterostilbene (PTE) is broadly found in berries and has antioxidant and anti-inflammatory properties.
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84
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Ramezani G, Pourgheysari B, Shirzad H, Sourani Z. Pterostilbene increases Fas expression in T-lymphoblastic leukemia cell lines. Res Pharm Sci 2019; 14:55-63. [PMID: 30936933 PMCID: PMC6407337 DOI: 10.4103/1735-5362.251853] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Treatment of acute lymphoblastic leukemia (ALL) has been promising in last decades, but side effects still persist and searching for the least toxic agents continue. Pterostilbene (PTE) is a natural compound with several anti-cancer and anti-oxidant properties. Fas, as a member of death inducing family of tumor necrosis factor (TNF) receptors with an intracellular death domain, can initiate the extrinsic apoptosis signaling pathway. Here after the half maximal inhibitory concentration (IC50) determination in cell lines, we searched for PTE effects on Fas, both in mRNA and surface levels in two ALL cell lines, Jurkat and Molt-4. After harvesting cells in optimum situations, MTS assay was used to determine IC50 concentrations. Real-time polymerase chain reaction (RT-PCR) and flow cytometry were performed for Fas mRNA and surface expression variations after exposure to PTE. The findings showed that PTE decreases cell viability with different extent in two ALL cell lines. In addition to inducing apoptosis, it can increase Fas in both gene and cell surface expression in the same concentrations. Pterostilbene as a natural anti-cancer agent can increase Fas expression both in mRNA and surface levels that results in apoptosis signal transduction improvement which sensitizes cells to apoptosis by immune effector cells. As a result, abnormal cells removal would be more efficiently with the minimum side effects on normal cells.
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Affiliation(s)
- Gelareh Ramezani
- Immunology Department, Shahrekord University of Medical Sciences, Shahrekord, I.R. Iran
| | - Batoul Pourgheysari
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, I.R. Iran.,Pathology and Hematology Department, Shahrekord University of Medical Sciences, Shahrekord, I.R. Iran
| | - Hedayatollah Shirzad
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, I.R. Iran
| | - Zahra Sourani
- Clinical Biochemistry Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, I.R. Iran.,Department of Medical Laboratory Sciences, Shahrekord University of Medical Sciences, Shahrekord, I.R. Iran
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85
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Molecules that Inhibit Bacterial Resistance Enzymes. Molecules 2018; 24:molecules24010043. [PMID: 30583527 PMCID: PMC6337270 DOI: 10.3390/molecules24010043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 12/14/2022] Open
Abstract
Antibiotic resistance mediated by bacterial enzymes constitutes an unmet clinical challenge for public health, particularly for those currently used antibiotics that are recognized as "last-resort" defense against multidrug-resistant (MDR) bacteria. Inhibitors of resistance enzymes offer an alternative strategy to counter this threat. The combination of inhibitors and antibiotics could effectively prolong the lifespan of clinically relevant antibiotics and minimize the impact and emergence of resistance. In this review, we first provide a brief overview of antibiotic resistance mechanism by bacterial secreted enzymes. Furthermore, we summarize the potential inhibitors that sabotage these resistance pathways and restore the bactericidal activity of inactive antibiotics. Finally, the faced challenges and an outlook for the development of more effective and safer resistance enzyme inhibitors are discussed.
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86
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Pterostilbene exerts a protective effect via regulating tunicamycin-induced endoplasmic reticulum stress in mouse preimplantation embryos. In Vitro Cell Dev Biol Anim 2018; 55:82-93. [DOI: 10.1007/s11626-018-0308-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 10/30/2018] [Indexed: 10/27/2022]
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87
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Ullah O, Li Z, Ali I, Xu L, Liu H, Shah SZA, Fang N. Pterostilbene alleviates hydrogen peroxide-induced oxidative stress via nuclear factor erythroid 2 like 2 pathway in mouse preimplantation embryos. J Reprod Dev 2018; 65:73-81. [PMID: 30429414 PMCID: PMC6379763 DOI: 10.1262/jrd.2018-089] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Pterostilbene (PTS) in blueberries is a phytoalexin with antioxidant properties. PTS exerts strong cytoprotective effects on various cells via Nuclear Factor Erythroid 2 like 2 (NFE2L2)
pathway. We evaluated the antioxidant PTS treatment in mouse preimplantation embryos. In vitro culture media were supplemented with different concentrations of PTS.
Treatment of zygotes with 0.25 μM PTS improved the development of day 4 blastocysts (P < 0.05). Moreover, H2O2 treatment significantly increased the
reactive oxygen species level and reduced the glutathione level in mouse blastocyst, whereas PTS treatment counteracted these effects. The fluorescence intensity of apoptotic positive cell
was higher in the H2O2 group than in the PTS group. Furthermore, PTS-treated embryos significantly increased the protein expression of NFE2L2 in the nucleus and
decreased Kelch-like ECH-associated protein1 (KEAP1). PTS treatment significantly increased the expression of downstream target genes involved in the NFE2L2 pathway, such as catalase
(CAT), heme oxygenase1 (HMOX1), glutathione peroxidase (GPX), and superoxide dismutase (SOD); these genes confer
cellular protection. In addition, PTS treatment significantly increased the expression of anti-apoptotic B-cell lymphoma 2 (BCL2), with a concomitant reduction in the
apoptotic Bcl-2-associated X protein (BAX) and Caspase-3 genes in the embryo. PTS treatment also increased the protein expression of BCL2 and reduced the
protein expression of BAX in the mouse embryo. In conclusion, PTS activated NFE2L2 signaling pathway in the development of mouse embryos by altering downstream expression of genes involved
in the antioxidant mechanisms and apoptosis.
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Affiliation(s)
- Obaid Ullah
- Department of Animal Science, Agricultural College, Yanbian University, Jilin Province 133002, China
| | - Zhongshu Li
- Department of Animal Science, Agricultural College, Yanbian University, Jilin Province 133002, China
| | - Ihsan Ali
- Department of Animal Science, Agricultural College, Yanbian University, Jilin Province 133002, China
| | - Lijie Xu
- Department of Animal Science, Agricultural College, Yanbian University, Jilin Province 133002, China
| | - Haixing Liu
- Department of Animal Science, Agricultural College, Yanbian University, Jilin Province 133002, China
| | - Syed Zahid Ali Shah
- National Animal Transmissible Spongiform Encephalopathy Laboratory, Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China
| | - Nanzhu Fang
- Department of Animal Science, Agricultural College, Yanbian University, Jilin Province 133002, China
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88
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Pterostilbene 4'- β-Glucoside Attenuates LPS-Induced Acute Lung Injury via Induction of Heme Oxygenase-1. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2747018. [PMID: 30425781 PMCID: PMC6218729 DOI: 10.1155/2018/2747018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 08/03/2018] [Accepted: 08/29/2018] [Indexed: 01/11/2023]
Abstract
Heme oxygenase-1 (HO-1) can exert anti-inflammatory and antioxidant effects. Acute lung injury (ALI) is associated with increased inflammation and influx of proinflammatory cells and mediators in the airspaces and lung parenchyma. In this study, we demonstrate that pterostilbene 4′-β-glucoside (4-PG), the glycosylated form of the antioxidant pterostilbene (PTER), can protect against lipopolysaccharide- (LPS-) or Pseudomonas aeruginosa- (P. aeruginosa-) induced ALI when applied as a pretreatment or therapeutic post-treatment, via the induction of HO-1. To determine whether HO-1 mediates the antioxidant and anti-inflammatory effects of 4-PG, we subjected mice genetically deficient in Hmox-1 to LPS-induced ALI and evaluated histological changes, HO-1 expression, and proinflammatory cytokine levels in bronchoalveolar lavage (BAL) fluid. 4-PG exhibited protective effects on LPS- or P. aeruginosa-induced ALI by ameliorating pathological changes in lung tissue and decreasing proinflammatory cytokines. In addition, HO-1 expression was significantly increased by 4-PG in cells and in mouse lung tissues. The glycosylated form of pterostilbene (4-PG) was more effective than PTER in inducing HO-1 expression. Genetic deletion of Hmox-1 abolished the protective effects of 4-PG against LPS-induced inflammatory responses. Furthermore, we found that 4-PG decreased both intracellular ROS levels and mitochondrial (mt) ROS production in a manner dependent on HO-1. Pharmacological application of the HO-1 reaction product carbon monoxide (CO), but not biliverdin or iron, conferred protection in Hmox-1-deficient macrophages. Taken together, these results demonstrate that 4-PG can increase HO-1 expression, which plays a critical role in ameliorating intracellular and mitochondrial ROS production, as well as in downregulating inflammatory responses induced by LPS. Therefore, these findings strongly suggest that HO-1 mediates the antioxidant and anti-inflammatory effects of 4-PG.
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89
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Martínez-Márquez A, Morante-Carriel JA, Palazon J, Bru-Martínez R. Rosa hybrida orcinol O-methyl transferase-mediated production of pterostilbene in metabolically engineered grapevine cell cultures. N Biotechnol 2018; 42:62-70. [PMID: 29477599 DOI: 10.1016/j.nbt.2018.02.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 01/11/2023]
Abstract
Stilbenes are naturally scarce high-added-value plant compounds with chemopreventive, pharmacological and cosmetic properties. Bioproduction strategies include engineering the metabolisms of bacterial, fungal and plant cell systems. Strikingly, one of the most effective strategies consists in the elicitation of wild grapevine cell cultures, which leads to vast stilbene resveratrol accumulation in the extracellular medium. The combination of both cell culture elicitation and metabolic engineering strategies to produce resveratrol analogs proved more efficient for the hydroxylated derivative piceatannol than for the dimethylated derivative pterostilbene, for which human hydroxylase HsCYP1B1- and grapevine O-methyltransferase VvROMT-transformed cell cultures were respectively used. Rose orcinol O-methyltransferase (OOMT) displays enzymatic properties, which makes it an appealing candidate to substitute VvROMT in the combined strategy to enhance the pterostilbene production level by engineered grapevine cells upon elicitation. Here we cloned a Rosa hybrida OOMT gene, and created a genetic construction suitable for Agrobacterium-mediated plant transformation. OOMT's ability to catalyze the conversion of resveratrol into pterostilbene was first assessed in vitro using protein extracts of agroinfiltrated N. benthamiana leaves and transformed grapevine callus. The grapevine cell cultures transformed with RhOOMT produced about 16 mg/L culture of pterostilbene and reached an extracellular distribution of up to 34% of total production at the best, which is by far the highest production reported to date in a plant system. A bonus large resveratrol production of ca. 1500-3000 mg/L was simultaneously obtained. Our results demonstrate a viable successful metabolic engineering strategy to produce pterostilbene, a resveratrol analog with enhanced pharmacological properties.
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Affiliation(s)
- Ascensión Martínez-Márquez
- Plant Proteomics and Functional Genomics Group, Department of Agrochemistry and Biochemistry, Faculty of Science and Multidisciplinary Institut for Environment Studies "Ramon Margalef", University of Alicante, Alicante, Spain
| | - Jaime A Morante-Carriel
- Plant Proteomics and Functional Genomics Group, Department of Agrochemistry and Biochemistry, Faculty of Science and Multidisciplinary Institut for Environment Studies "Ramon Margalef", University of Alicante, Alicante, Spain; Biotechnology and Molecular Biology Group, Quevedo State Technical University, Quevedo, Ecuador
| | - Javier Palazon
- Laboratory of Plant Physiology, Faculty of Pharmacy, University of Barcelona, Av.Joan XXIII sn, E-08028 Barcelona, Spain
| | - Roque Bru-Martínez
- Plant Proteomics and Functional Genomics Group, Department of Agrochemistry and Biochemistry, Faculty of Science and Multidisciplinary Institut for Environment Studies "Ramon Margalef", University of Alicante, Alicante, Spain; Institute for Healthcare and Biomedical Research of Alicante ISABIAL-FISABIO, E-03010 Alicante, Spain.
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90
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Lacerda DS, Bianchi SE, Pinós WL, Campos-Carraro C, Türck P, Hickmann AR, Pittol V, Teixeira RB, Belló-Klein A, Bassani VL, Araujo ASR. Effect of pterostilbene complexed with cyclodextrin on rat liver: potential reduction of oxidative damage and modulation redox-sensitive proteins. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2233-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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91
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Yu D, Zhang Y, Chen G, Xie Y, Xu Z, Chang S, Hu L, Li B, Bu W, Wang Y, Xiao W, Sun X, Chang G, Gao L, Qiang S, Wu X, Zhu W, Shi J. Targeting the PI3K/Akt/mTOR signaling pathway by pterostilbene attenuates mantle cell lymphoma progression. Acta Biochim Biophys Sin (Shanghai) 2018; 50:782-792. [PMID: 29961897 DOI: 10.1093/abbs/gmy070] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 05/29/2018] [Indexed: 12/12/2022] Open
Abstract
Mantle cell lymphoma (MCL) is an aggressive and mostly incurable B-cell malignancy with frequent relapses after an initial response to standard chemotherapy. Therefore, novel therapies are urgently required to improve MCL clinical outcomes. In this study, MCL cell lines were treated with pterostilbene (PTE), a non-toxic natural phenolic compound primarily found in blueberries. The antitumor activity of PTE was examined by using the Cell Counting Kit-8, apoptosis assays, cell cycle analysis, JC-1 mitochondrial membrane potential assay, western blot analysis, and tumor xenograft models. PTE treatment induced a dose-dependent inhibition of cell proliferation, including the induction of cell apoptosis and cell cycle arrest at the G0/G1 phase. Moreover, the PI3K/Akt/mTOR pathway was downregulated after PTE treatment, which might account for the anti-MCL effects of PTE. Synergistic cytotoxicity was also observed, both in MCL cells and in xenograft mouse models, when PTE was administered in combination with bortezomib (BTZ). The antitumor effects of PTE shown in our study provide an innovative option for MCL patients with poor responses to standardized therapy. It is noteworthy that the treatment combining PTE with BTZ warrants clinical investigation, which may offer an alternative and effective MCL treatment in the future.
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Affiliation(s)
- Dandan Yu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yong Zhang
- CAS Key Laboratory of Receptor Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Gege Chen
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yongsheng Xie
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhijian Xu
- CAS Key Laboratory of Receptor Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Shuaikang Chang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Liangning Hu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Bo Li
- CAS Key Laboratory of Receptor Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Wenxuan Bu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yingcong Wang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wenqin Xiao
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xi Sun
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Gaomei Chang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lu Gao
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Sujing Qiang
- Tongji University Cancer Center, Tongji University, Shanghai, China
| | - Xiaosong Wu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Weiliang Zhu
- CAS Key Laboratory of Receptor Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Jumei Shi
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
- Tongji University Cancer Center, Tongji University, Shanghai, China
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92
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Espinoza JL, Kurokawa Y, Takami A. Rationale for assessing the therapeutic potential of resveratrol in hematological malignancies. Blood Rev 2018; 33:43-52. [PMID: 30005817 DOI: 10.1016/j.blre.2018.07.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 03/27/2018] [Accepted: 07/03/2018] [Indexed: 02/05/2023]
Abstract
Promising results from pre-clinical studies on the naturally-occurring polyphenol resveratrol have generated considerable interest and somewhat excessive expectations regarding the therapeutic potential of this compound for treating or preventing various diseases, including cardiovascular and neurodegenerative disorders and cancer. Resveratrol has potent inhibitory activity in vitro against various tumor types, including cell lines derived from virtually all blood malignancies. Pharmacological studies have shown that resveratrol is safe for humans but has poor bioavailability, due to its extensive hepatic metabolism. Curiously, a substantial proportion of the orally administered resveratrol can reach the bone marrow compartment. Notably, various pathways dysregulated in blood cancers are known to be molecular targets of resveratrol, thus substantiating the potential utility of this agent in blood malignancies. In this review, we primarily focus on the scientific evidence that supports the potential utility of resveratrol for the management of select hematological malignancies. In addition, potential clinical trials with resveratrol are suggested.
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Affiliation(s)
- J Luis Espinoza
- Department of Hematology and Rheumatology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan.
| | - Yu Kurokawa
- Department of Hematology and Rheumatology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | - Akiyoshi Takami
- Department of Internal Medicine, Division of Hematology, School of Medicine, Aichi Medical University, Nagakute, Aichi, Japan
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93
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Xue EX, Lin JP, Zhang Y, Sheng SR, Liu HX, Zhou YL, Xu H. Pterostilbene inhibits inflammation and ROS production in chondrocytes by activating Nrf2 pathway. Oncotarget 2018; 8:41988-42000. [PMID: 28410217 PMCID: PMC5522043 DOI: 10.18632/oncotarget.16716] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 03/09/2017] [Indexed: 12/21/2022] Open
Abstract
Pterostilbene has been reported as a potential drug to inhibit oxidative stress and inflammation. However, the effect of pterostilbene on chondrocytes and osteoarthritis remains to be elucidated. We sought to investigate whether pterostilbene could protect chondrocytes from inflammation and ROS production through factor erythroid 2-related factor 2 (Nrf2) activation. The pterostilbene toxicity on chondrocytes collected from cartilages of Sprague-Dawley rats was assessed by CCK-8 test. Immunofluorescence and Western blotting explored the nuclear translocation of Nrf2. Nrf2 expression was silenced by siRNA to evaluate the involvement of Nrf2 in the effect of pterostilbene on chondrocytes. Finally, osteoarthritis model was established by the transection of anterior cruciate ligament and partial medial meniscectomy in rats, and then these rats received pterostilbene 30 mg/kg, daily, p.o. for 8 weeks. Histology and immunohistochemistry were used to assess histopathological change and Nrf2 expression in cartilage. Nuclear translocation of Nrf2 was stimulated by pterostilbene without cellular toxicity. Pterostilbene inhibited the level of COX-2, iNOS, PGE2, and NO, as well as the mitochondrial and total intracellular ROS production induced by IL-1β in chondrocytes, partially reversed by the Nrf2 silencing. Pterostilbene prevented cartilage degeneration and promoted the nuclear translocation of Nrf2 in cartilage. These results suggest that pterostilbene could inhibit the IL-1β-induced inflammation and ROS production in chondrocytes by stimulating the nuclear translocation of Nrf2.
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Affiliation(s)
- En-Xing Xue
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Jian-Ping Lin
- Department of Orthopedic Surgery, Hainan Provincial People's Hospital, Haikou, Hainan, 570311, China
| | - Yu Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Sun-Ren Sheng
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Hai-Xiao Liu
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Yu-Long Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Hui Xu
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
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94
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Abstract
Stilbenoids are a group of naturally occurring phenolic compounds found in various plant species. They share a common backbone structure known as stilbene, but differ in the nature and position of substituents. Stilbenoids are classified as phytoalexins, which are antimicrobial compounds produced de novo in plants to protect against fungal infection and toxins. In this review, the biological effects of stilbenoids such as resveratrol, pterostilbene, gnetol and piceatannol are discussed. Stilbenoids exert various biological activities ranging from cardioprotection, neuroprotection, anti-diabetic properties, depigmentation, anti-inflammation, cancer prevention and treatment. The results presented cover a myriad of models, from cell culture to animal studies as well as clinical human trials. Although positive results were obtained in most cell culture and animal studies, further human studies are needed to substantiate beneficial effects of stilbenoids. Resveratrol remains the most widely studied stilbenoid. However, there is limited information regarding the potential of less common stilbenoids. Therefore, further research is warranted to evaluate the salutary effects of various stilbenoids.
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Affiliation(s)
- Bolanle C Akinwumi
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, 750 McDermot Avenue, Winnipeg, MB R3E 0T5, Canada.
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, 351 Taché Avenue, Winnipeg, MB R2H 2A6, Canada.
| | - Kimberly-Ann M Bordun
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, 351 Taché Avenue, Winnipeg, MB R2H 2A6, Canada.
| | - Hope D Anderson
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, 750 McDermot Avenue, Winnipeg, MB R3E 0T5, Canada.
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, 351 Taché Avenue, Winnipeg, MB R2H 2A6, Canada.
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, 753 McDermot Avenue, Winnipeg, MB R3E 0T6, Canada.
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95
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Huang WC, Chan ML, Chen MJ, Tsai TH, Chen YJ. Modulation of macrophage polarization and lung cancer cell stemness by MUC1 and development of a related small-molecule inhibitor pterostilbene. Oncotarget 2018; 7:39363-39375. [PMID: 27276704 PMCID: PMC5129938 DOI: 10.18632/oncotarget.8101] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 05/17/2016] [Indexed: 01/24/2023] Open
Abstract
Tumor-associated macrophages (TAMs) polarized to the M2 phenotype play key roles in tumor progression in different cancer types, including lung cancer. MUC1 expression in various types of cancer is an indicator of poorer prognosis. Elevated MUC1 expression has been reported in inflammatory lung macrophages and is associated with lung cancer development. Here, we investigated the role of M2-polarized TAMs (M2-TAMs) in the generation of lung cancer stem cells (LCSCs) and tested pterostilbene, a small-molecule agent that modulates MUC1 expression in lung cancer cells, with the goal of subverting the microenvironment toward a favorable anti-tumor impact. We found that MUC1 was overexpressed in lung cancer patients, which was associated with poor survival rates. M2-TAMs and cancer cell lines were co-cultured in an experimental tumor microenvironment model. The expression levels of MUC1 and cancer stemness genes significantly increased in lung cancer cells in the presence of the M2-TAM cells. Intriguingly, pterostilbene dose-dependently suppressed self-renewal ability in M2-TAMs-co-cultured lung cancer cells, and this suppression was accompanied by downregulation of MUC1, NF-κB, CD133, β-catenin, and Sox2 expression. Moreover, MUC1-silenced M2-TAMs exhibited a significantly lower ability to promote LCSC generation and decreased levels of NF-κB, CD133, and Sox2. The results suggest that MUC1 plays an important role in TAM-induced LCSC progression. Pterostilbene may have therapeutic potential for modulating the unfavorable effects of TAMs in lung cancer progression.
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Affiliation(s)
- Wen-Chien Huang
- MacKay Medical College, Taipei, Taiwan.,Department of Surgery, Division of Thoracic Surgery, MacKay Memorial Hospital, Taipei, Taiwan.,Institute of Traditional Medicine, School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Mei-Lin Chan
- MacKay Medical College, Taipei, Taiwan.,Department of Surgery, Division of Thoracic Surgery, MacKay Memorial Hospital, Taipei, Taiwan.,Institute of Traditional Medicine, School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Ming-Jen Chen
- Institute of Traditional Medicine, School of Medicine, National Yang Ming University, Taipei, Taiwan.,Department of Surgery, Division of Colorectal Surgery, MacKay Memorial Hospital, Taipei, Taiwan
| | - Tung-Hu Tsai
- MacKay Medical College, Taipei, Taiwan.,Department of Education and Research, Taipei City Hospital, Taipei, Taiwan
| | - Yu-Jen Chen
- MacKay Medical College, Taipei, Taiwan.,Department of Radiation Oncology, MacKay Memorial Hospital, Taipei, Taiwan.,Institute of Traditional Medicine, School of Medicine, National Yang Ming University, Taipei, Taiwan.,College of Chinese Medicine, China Medical University, Taichung, Taiwan
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96
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He JL, Dong XH, Li ZH, Wang XY, Fu ZA, Shen N. Pterostilbene inhibits reactive oxygen species production and apoptosis in primary spinal cord neurons by activating autophagy via the mechanistic target of rapamycin signaling pathway. Mol Med Rep 2018; 17:4406-4414. [PMID: 29328494 PMCID: PMC5802216 DOI: 10.3892/mmr.2018.8412] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 11/13/2017] [Indexed: 01/14/2023] Open
Abstract
Autophagy is an important self-adaptive mechanism that is involved in inhibiting reactive oxygen species (ROS) in spinal cord neurons. Pterostilbene, a natural plant extract, has been demonstrated to possess antioxidant effects; however, it has not yet been investigated whether pterostilbene could activate autophagy and protect spinal cord neurons from oxidative stress. In the present study, primary spinal cord neurons of Sprague Dawley rats were cultured. Cell counting kit‑8 analysis was used to detect cytotoxicity of pterostilbene. Cells were treated with various doses of pterostilbene for 24 and 48 h, respectively, and H2O2 was used to induce ROS production. Western blot analysis was performed to assess the protein expression of microtubule‑associated protein 1 light chain 3 (LC3)‑II, Beclin‑1, p62, p‑p70S6K and p‑mechanistic target of rapamycin (mTOR). Furthermore, the green fluorescent protein (GFP)‑LC3 assay was used to detect the level of autophagy level and activation mechanism. 2',7'‑Dichlorofluorescin diacetate and MitoSOX Red staining were used to detect ROS production, and Terminal deoxynucleotidyl‑transferase‑mediated dUTP nick end labelling assay was used to analyze apoptosis percentage. ATG5 small interfering (si)RNA transfection was used to analyze the involvement of autophagy. A dose‑dependent increase in the expression of LC3‑II and Beclin‑1, as well as the p62 decline, were observed in the pterostilbene‑treated neurons; however, p‑p70S6K and p‑mTOR expression was inhibited by pterostilbene. Pterostilbene increased the expression of LC3‑II in H2O2‑treated cells, and GFP‑LC3 analysis demonstrated an increased number of autophagosomes. Furthermore, pterostilbene significantly inhibited the ROS production and apoptosis induced by H2O2; however, ATG5 siRNA transfection significantly reversed the protection of pterostilbene. These results indicate that pterostilbene may inhibit the ROS production and apoptosis in spinal cord neurons by activating autophagy via the mTOR signaling pathway.
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Affiliation(s)
- Jing-Lan He
- Department of Orthopedic Surgery, The Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056002, P.R. China
| | - Xiao-Hui Dong
- Department of Orthopedic Surgery, The Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056002, P.R. China
| | - Zong-Hu Li
- Department of Orthopedic Surgery, The Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056002, P.R. China
| | - Xiao-Ying Wang
- Department of Orthopedic Surgery, The Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056002, P.R. China
| | - Zhi-An Fu
- Department of Orthopedic Surgery, The Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056002, P.R. China
| | - Na Shen
- Department of Orthopedic Surgery, The Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056002, P.R. China
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97
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Yu W, Hu X, Wang M. Pterostilbene inhibited advanced glycation end products (AGEs)-induced oxidative stress and inflammation by regulation of RAGE/MAPK/NF-κB in RAW264.7 cells. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.11.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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98
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Wang P, Sang S. Metabolism and pharmacokinetics of resveratrol and pterostilbene. Biofactors 2018; 44:16-25. [PMID: 29315886 DOI: 10.1002/biof.1410] [Citation(s) in RCA: 176] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/07/2017] [Accepted: 12/08/2017] [Indexed: 01/08/2023]
Abstract
Beneficial properties of resveratrol and pterostilbene, a dimethyl ether analog of resveratrol, have attracted increasing interest in recent years. Resveratrol and pterostilbene exhibit many pharmacological similarities and both of them are generally considered to be safe for human consumption. Beyond the structural and general bioactivity similarities between them, large amounts of data are now available to reveal the metabolic fate and pharmacological differences between them. Pterostilbene was found to be more metabolically stable and usually exhibited stronger pharmacological activities than that of resveratrol. As a contribution to clarify and compare aspects like metabolic stability and pharmacokinetics of resveratrol and pterostilbene, as well as explain the pharmacological similarities and differences between them, this review presents and compares recent data on the metabolism and pharmacokinetics of resveratrol and pterostilbene. © 2018 BioFactors, 44(1):16-25, 2018.
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Affiliation(s)
- Pei Wang
- Laboratory for Functional Foods and Human Health, Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, North Carolina Research Campus, 500 Laureate Way, Kannapolis, NC
| | - Shengmin Sang
- Laboratory for Functional Foods and Human Health, Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, North Carolina Research Campus, 500 Laureate Way, Kannapolis, NC
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99
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Lai CS, Yang G, Li S, Lee PS, Wang BN, Chung MC, Nagabhushanam K, Ho CT, Pan MH. 3'-Hydroxypterostilbene Suppresses Colitis-Associated Tumorigenesis by Inhibition of IL-6/STAT3 Signaling in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:9655-9664. [PMID: 29032686 DOI: 10.1021/acs.jafc.7b03712] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
3'-Hydroxypterostilbene (trans-3,5-dimethoxy-3',4'-hydroxystilbene) presents in Sphaerophysa salsula, Pterocarpus marsupium, and honey bee propolis and has been reported to exhibit several biological activities. Herein, we aimed to explore the chemopreventive effects of dietary 3'-hydroxypterostilbene and underlying molecular mechanisms on colitis-associated cancer using the azoxymethane (AOM)/dextran sodium sulfate (DSS) model. 3'-Hydroxypterostilbene administration effectively ameliorated the colon shortening and number of tumors in AOM/DSS-treated mice (3.2 ± 1.2 of the high-dose treatment versus 13.8 ± 5.3 of the AOM/DSS group, p < 0.05). Molecular analysis exhibited the anti-inflammatory activity of 3'-hydroxypterostilbene by a significant decrease in the levels of inducible nitric oxide synthase, cyclooxygenase-2, and interleukin-6 (IL-6) (p < 0.05). Moreover, dietary 3'-hydroxypterostilbene also significantly diminished IL-6/signal transducer and activator of transcription signaling and restored colonic suppressor of cytokine signaling 3 levels in the colonic tissue of mice (p < 0.05). Collectively, these results demonstrated for the first time the in vivo chemopreventive efficacy and molecular mechanisms of dietary 3'-hydroxypterostilbene against colitis-associated colonic tumorigenesis.
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Affiliation(s)
- Ching-Shu Lai
- Department of Seafood Science, National Kaohsiung Marine University , Kaohsiung 811, Taiwan
| | - Guliang Yang
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, Huanggang Normal University , Huanggang, Hubei China
| | - Shiming Li
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, Huanggang Normal University , Huanggang, Hubei China
| | - Pei-Sheng Lee
- Institute of Food Science and Technology, National Taiwan University , Taipei 10617, Taiwan
| | - Bi Ni Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University , Xi'an 710119, China
| | - Min-Ching Chung
- Department of Seafood Science, National Kaohsiung Marine University , Kaohsiung 811, Taiwan
| | | | - Chi-Tang Ho
- Department of Food Science, Rutgers University , New Brunswick, New Jersey 08901, United States
| | - Min-Hsiung Pan
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, Huanggang Normal University , Huanggang, Hubei China
- Institute of Food Science and Technology, National Taiwan University , Taipei 10617, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University , Taichung 40402, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University , Taichung, Taiwan
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100
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Therapeutic Versatility of Resveratrol Derivatives. Nutrients 2017; 9:nu9111188. [PMID: 29109374 PMCID: PMC5707660 DOI: 10.3390/nu9111188] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/26/2017] [Accepted: 10/25/2017] [Indexed: 12/13/2022] Open
Abstract
Resveratrol, a natural phytoalexin, exhibits a remarkable range of biological activities, such as anticancer, cardioprotective, neuroprotective and antioxidant properties. However, the therapeutic application of resveratrol was encumbered for its low bioavailability. Therefore, many researchers focused on designing and synthesizing the derivatives of resveratrol to enhance the bioavailability and the pharmacological activity of resveratrol. During the past decades, a large number of natural and synthetic resveratrol derivatives were extensively studied, and the methoxylated, hydroxylated and halogenated derivatives of resveratrol received particular more attention for their beneficial bioactivity. So, in this review, we will summarize the chemical structure and the therapeutic versatility of resveratrol derivatives, and thus provide the related structure activity relationship reference for their practical applications.
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