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Dietary Phytochemicals as Potential Chemopreventive Agents against Tobacco-Induced Lung Carcinogenesis. Nutrients 2023; 15:nu15030491. [PMID: 36771198 PMCID: PMC9920588 DOI: 10.3390/nu15030491] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/23/2022] [Accepted: 01/14/2023] [Indexed: 01/19/2023] Open
Abstract
Lung cancer is the second most common cancer in the world. Cigarette smoking is strongly connected with lung cancer. Benzo[a]pyrene (BaP) and 4-(N-methyl-N-nitrosamine)-1-(3-pyridyl)-butanone (NNK) are the main carcinogens in cigarette smoking. Evidence has supported the correlation between these two carcinogens and lung cancer. Epidemiology analysis suggests that lung cancer can be effectively prevented through daily diet adjustments. This review aims to summarize the studies published in the past 20 years exploring dietary phytochemicals using Google Scholar, PubMed, and Web of Science databases. Dietary phytochemicals mainly include medicinal plants, beverages, fruits, vegetables, spices, etc. Moreover, the perspectives on the challenges and future directions of dietary phytochemicals for lung cancer chemoprevention will be provided. Taken together, treatment based on the consumption of dietary phytochemicals for lung cancer chemoprevention will produce more positive outcomes in the future and offer the possibility of reducing cancer risk in society.
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Hao R, Ge J, Li F, Jiang Y, Sun-Waterhouse D, Li D. MiR-34a-5p/Sirt1 axis: A novel pathway for puerarin-mediated hepatoprotection against benzo(a)pyrene. Free Radic Biol Med 2022; 186:53-65. [PMID: 35561843 DOI: 10.1016/j.freeradbiomed.2022.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/20/2022] [Accepted: 05/05/2022] [Indexed: 02/07/2023]
Abstract
Benzo[a]pyrene (BaP) as a carcinogen induces oxidative stress and inflammation, causing health problems including liver damage. Puerarin (a natural flavonoid) is traditionally used to provide hepatoprotective effects. This research was established to meet the rising demand for effective therapies/treatments against hepatic diseases and investigate the mechanism underlying the protective actions of puerarin against BaP-induced liver damage. In mice, puerarin combated effectively the detrimental changes in liver weight, color and function indices caused by BaP. In HepG2 cells, puerarin alleviated BaP-induced cell death, oxidative stress and inflammation, and such effects were positively correlated with puerarin's concentration (12.5-50 μM). Mechanistic studies revealed that BaP induced low Sirt1 expression and high miR-34a-5p expression, and puerarin treatment alleviated these changes. Oxidative stress and inflammation induced by BaP were almost eliminated when miR-34a-5p was silenced. Inhibiting miR-34a-5p or overexpressing Sirt1 had a similar effect to puerain treatment. Overexpression of miR-34a-5p and inhibition of Sirt1 reduced the protective effect of puerarin. Collectively, miR-34a-5p participates in the regulation of puerarin's protective function against BaP-induced injury through targeting Sirt1. There is a novel pathway for suppressing oxidative stress and inflammation via miR-34a-5p/Sirt1 axis in puerarin-mediated hepatoprotection, which opens up a new avenue for alternative therapies.
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Affiliation(s)
- Rili Hao
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, 271018, People's Republic of China
| | - Junlin Ge
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, 271018, People's Republic of China
| | - Feng Li
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, 271018, People's Republic of China
| | - Yang Jiang
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, 271018, People's Republic of China
| | - Dongxiao Sun-Waterhouse
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, 271018, People's Republic of China; School of Chemical Sciences, The University of Auckland, Auckland, New Zealand.
| | - Dapeng Li
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, 271018, People's Republic of China.
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Zhu J, Yu C, Zhou H, Wei X, Wang Y. Comparative evaluation for phytochemical composition and regulation of blood glucose, hepatic oxidative stress and insulin resistance in mice and HepG2 models of four typical Chinese dark teas. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:6563-6577. [PMID: 34018615 DOI: 10.1002/jsfa.11328] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 04/13/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Dark tea, comprising one of the six major teas, has many biological activities, which originate from their active substrates, such as polyphenols, polysaccharides, and so on. The hypoglycemic effect is one of its most prominent activities, although less is known about their evaluation and potential role in the hypoglycemic mechanism. RESULTS In the present study, we separately analyzed the phytochemical composition, glycosidase inhibition and free radical scavenging activities, and hypoglycemic activity in type 2 diabetes mellitus mice, as well as the alleviation of insulin resistance in HepG2 cells of four dark tea aqueous extracts. The results showed that the phytochemical composition of dark tea aqueous extracts was significantly different, and they all had good glycosidase inhibition and free radical scavenging activities, in vivo hypoglycemic activity and alleviation of insulin resistance, and could also activate the phosphatidylinositol 3-kinase-Akt-perixisome proliferation-activated receptor cascade signaling pathway to regulate glucose and lipid metabolism, change the key enzyme activities related to glucose metabolism and antioxidant activity, and reduce oxidative stress and inflammatory factor levels. Among them, Liubao brick tea (LBT) and Pu-erh tea (PET) possessed better glycosidase inhibitory activity, in vivo hypoglycemic activity and improved insulin resistance activity, whereas Qingzhuan brick tea and Fuzhuan brick tea had better free radical scavenging activity, which may be explained by their distinct phytochemical compositions, such as tea proteins, polysaccharides, polyphenols, catechins, and tea pigments and some elements. CONCLUSION Dark tea is a highly attractive candidate for developing antidiabetic food, LBT and PET may be good natural sources of agricultural products with anti-diabetic effects. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Jiangxiong Zhu
- Institute of Food Engineering, College of Life Science, Shanghai Normal University, Shanghai, China
| | - Chuang Yu
- Institute of Food Engineering, College of Life Science, Shanghai Normal University, Shanghai, China
| | - Hui Zhou
- Institute of Food Engineering, College of Life Science, Shanghai Normal University, Shanghai, China
| | - Xinlin Wei
- Institute of Food Engineering, College of Life Science, Shanghai Normal University, Shanghai, China
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Yuanfeng Wang
- Institute of Food Engineering, College of Life Science, Shanghai Normal University, Shanghai, China
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Khattab SA, Hussien WF, Raafat N, Ahmed Alaa El-Din E. Effects of catechin hydrate in benzo[ a]pyrene-induced lung toxicity: roles of oxidative stress, apoptosis, and DNA damage. Toxicol Mech Methods 2021; 31:467-475. [PMID: 34027802 DOI: 10.1080/15376516.2021.1916667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The major sources for human exposure to Benzo [a] pyrene (B[a]P) are contaminated food, water, and inhalation of polycyclic aromatic hydrocarbon. B[a]P is a well-known human genotoxic carcinogen (IARC Group 1). It has a tumorigenic potential in virtually all in vivo experimental animal model systems. The study aimed to evaluate the effect of catechin hydrate (CH) against B [a] P-induced toxicity in the lung of adult albino rats. Thirty-six adult male albino rats (150-200 g) were divided into six groups, three control groups, and three experimental groups: B[a] P-treated group, (CH)-treated group, and B[a] P+(CH)-treated group. At the end of the fourth week of the study, blood samples and lung tissues were obtained for the biochemical and genotoxicity, RT-PCR, histopathological, and immunohistochemical investigations, respectively. Our results clarified that B[a] P exposure caused a subsequent decrease in the activities of antioxidant enzymes (SOD, CAT), and conversely (MDA) levels elevated markedly. Also, B[a] P induced DNA damages and activated the apoptotic pathway, presented by upregulated Bax, caspase-3, and downregulated Bcl-2 gens. However, treatment with CH increased antioxidant enzymes as well as regulated apoptosis. Discernible histological changes in the lung also supported the protective effects of CH. These findings suggested that CH is an effective natural product that attenuates Benzo [a] pyrene-induced lung toxicity.
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Affiliation(s)
- Samah A Khattab
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Wafaa F Hussien
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Nermin Raafat
- Department of Medical Biochemistry, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Eman Ahmed Alaa El-Din
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Khattab SA, Hussien WF, Raafat N, Ahmed Alaa El-Din E. Modulatory effects of catechin hydrate on benzo[a]pyrene-induced nephrotoxicity in adult male albino rats. Toxicol Res (Camb) 2021; 10:542-550. [PMID: 34141168 DOI: 10.1093/toxres/tfab029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 02/18/2021] [Accepted: 03/01/2021] [Indexed: 11/12/2022] Open
Abstract
Benzo [a] pyrene (B[a]P) is a potent mutagen and carcinogen, considered one of the commonest concomitants in the environment. The study aimed to evaluate the effect of catechin hydrate on benzo pyrene-induced kidney toxicity. Thirty-six adult male albino rats were divided into six groups: group I untreated control, group II received 10 mL/kg of corn oil (solvent of benzo [a] pyrene) twice a week, group III received 1 mL/kg 0.5% dimethyl sulfoxide (DMSO) (solvent of catechin) once per day, group IV received 50 mg/kg body weight of benzo[a]pyrene twice a week, group V received 20 mg/kg body weight of catechin in 1 mL/kg 0.5% DMSO once daily, and group VI received both catechin+benzo [a] pyrene with the same doses. All treatment was given by oral gavage for four weeks. At the end of the experiment, blood samples were collected for biochemical investigations, tissues were obtained for genotoxicity, RT-PCR, and histopathological studies. B[a]P exposure induced an increase in serum urea and creatinine levels along with severe renal histopathological changes. Our results showed a subsequent decrease in the antioxidant enzyme activities (catalase and superoxide dismutase), and conversely, (malondialdehyde) levels markedly elevated. Also, B[a]P induced DNA damage as well as activated an apoptotic pathway confirmed by upregulation of Bax, caspase-3, and downregulation of Bcl-2 expression. However, treatment with catechin-corrected kidney functions and antioxidant enzymes as well as regulated apoptosis. Histological results also supported the protective effects of catechin. These findings suggested that catechin hydrate is an effective natural product that attenuates benzo pyrene-induced kidney toxicity.
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Affiliation(s)
- Samah A Khattab
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Wafaa F Hussien
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Nermin Raafat
- Department of Medical Biochemistry, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Eman Ahmed Alaa El-Din
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
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Lin Q, Ni H, Wu L, Weng SY, Li L, Chen F. Analysis of aroma-active volatiles in an SDE extract of white tea. Food Sci Nutr 2021; 9:605-615. [PMID: 33598146 PMCID: PMC7866617 DOI: 10.1002/fsn3.1954] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 10/04/2020] [Accepted: 10/05/2020] [Indexed: 12/15/2022] Open
Abstract
White tea is a famous Chinese tea that is cooked at boiling point before drinking. The simultaneous distillation-extraction (SDE) was used to collect volatile compounds during tea cooking. The SDE extract was dominated with green, floral, roasted and woody notes, and weak sweet note. There were 32 volatile compounds identified via gas chromatography-mass spectrometry analysis, and 19 of them had strong fragrance based on the gas chromatography-olfactometry analyzed results. Hexanal, 2-hexenal, cis-3-hexen-1-ol, and camphene were the main contributors to the green note. The floral note was mainly contributed by 2-hexanone, benzeneacetaldehyde, trans-linalool oxide, and linalool, and the sweet note was induced by trans-β-damascenone. The roasted note was mainly contributed by 2-pentyl-furan. The woody note was mainly contributed by trans-α-ionone and trans-β-ionone. Four putative reaction pathways, including amino acid degradation, carotene degradation, Maillard reaction, and glycosides hydrolysis, were figured out to explain the generation of aromatic-active volatiles at high temperatures. This study added our knowledge on tea aroma under cooking as well as other thermal treatments.
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Affiliation(s)
- Qi Lin
- College of Food and BioengineeringJimei UniversityXiamenChina
| | - Hui Ni
- College of Food and BioengineeringJimei UniversityXiamenChina
- Key Laboratory of Food Microbiology and Enzyme Engineering TechnologyXiamenChina
- Research Center of Food Biotechnology of Xiamen CityXiamenChina
| | - Ling Wu
- College of Food and BioengineeringJimei UniversityXiamenChina
- Key Laboratory of Food Microbiology and Enzyme Engineering TechnologyXiamenChina
- Research Center of Food Biotechnology of Xiamen CityXiamenChina
| | - Shu Yi Weng
- DAMIN Foodstuff (Zhangzhou) Co., LtdZhangzhouChina
| | - Lijun Li
- College of Food and BioengineeringJimei UniversityXiamenChina
- Key Laboratory of Food Microbiology and Enzyme Engineering TechnologyXiamenChina
- Research Center of Food Biotechnology of Xiamen CityXiamenChina
| | - Feng Chen
- College of Food and BioengineeringJimei UniversityXiamenChina
- Department of Food, Nutrition and Packaging SciencesClemson UniversityClemsonSCUSA
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Herbal Active Ingredients: An Emerging Potential for the Prevention and Treatment of Papillary Thyroid Carcinoma. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1340153. [PMID: 32090065 PMCID: PMC7013308 DOI: 10.1155/2020/1340153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/28/2019] [Accepted: 12/05/2019] [Indexed: 02/06/2023]
Abstract
Papillary thyroid carcinoma (PTC) is the most common subtype of differentiated thyroid cancers in Asian coastal cities, where the patients have increased risk of potentially high or excessive iodine intake. Given the high metastasis and recurrence of patients with BRAFV600E mutation, the mortality rate of thyroid cancer has recently shown an upward trend. A variety of therapies, including surgery, radiotherapy, and chemotherapy, have been used to treat thyroid cancer, but these therapies still have limitations, including postoperative complications, drug resistance, poor efficacy, or serious side effects. Recent studies have shown the potential of active ingredients derived from herbal medicine in inhibiting PTC via various cell signaling pathways. Some plant-derived compounds, such as apigenin, genistein, and curcumin, are also known to prevent and treat PTC. This article summarizes the recent advances in the structure-functional impact of anti-PTC active ingredients and their effects on PTC cells and tumor microenvironments with an emphasis on their challenges from basic research to clinical practice.
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Xu M, Fu L, Zhang J, Wang T, Fan J, Zhu B, Dziugan P, Zhang B, Zhao H. Potential of Inactivated Bifidobacterium Strain in Attenuating Benzo(A)Pyrene Exposure-Induced Damage in Colon Epithelial Cells In Vitro. TOXICS 2020; 8:toxics8010012. [PMID: 32053893 PMCID: PMC7151743 DOI: 10.3390/toxics8010012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/03/2020] [Accepted: 02/08/2020] [Indexed: 02/07/2023]
Abstract
Long-term exposure to benzo(a)pyrene (BaP) poses a serious genotoxic threat to human beings. This in vitro study investigated the potential of inactivated Bifidobacterium animalis subsp. lactis BI-04 in alleviating the damage caused by BaP in colon epithelial cells. A concentration of BaP higher than 50 μM strongly inhibited the growth of colon epithelial cells. The colon epithelial cells were treated with 50 μM BaP in the presence or absence of inactivated strain BI-04 (~5 × 108 CFU/mL). The BaP-induced apoptosis of the colon epithelial cells was retarded in the presence of B. lactis BI-04 through activation of the PI3K/ AKT signaling pathway, and p53 gene expression was decreased. The presence of the BI-04 strain reduced the intracellular oxidative stress and DNA damage incurred in the colon epithelial cells by BaP treatment due to the enhanced expression of antioxidant enzymes and metabolism-related enzymes (CYP1A1). The data from comet assay, qRT-PCR, and western blot analysis showed that the cytotoxic effects of BaP on colon epithelial cells were largely alleviated because the bifidobacterial strain could bind to this carcinogenic compound. The in vitro study highlights that the consumption of commercial probiotic strain BI-04 might be a promising strategy to mitigate BaP cytotoxicity.
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Affiliation(s)
- Mengfan Xu
- College of Biological Science & Biotechnology, Beijing Forestry University, Beijing 100083, China; (M.X.); (L.F.); (J.F.); (B.Z.)
| | - Lili Fu
- College of Biological Science & Biotechnology, Beijing Forestry University, Beijing 100083, China; (M.X.); (L.F.); (J.F.); (B.Z.)
| | - Junwen Zhang
- College of Biological Science & Biotechnology, Beijing Forestry University, Beijing 100083, China; (M.X.); (L.F.); (J.F.); (B.Z.)
| | - Tao Wang
- College of Biological Science & Biotechnology, Beijing Forestry University, Beijing 100083, China; (M.X.); (L.F.); (J.F.); (B.Z.)
- Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, Beijing 100083, China
| | - Junfeng Fan
- College of Biological Science & Biotechnology, Beijing Forestry University, Beijing 100083, China; (M.X.); (L.F.); (J.F.); (B.Z.)
- Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, Beijing 100083, China
| | - Baoqing Zhu
- College of Biological Science & Biotechnology, Beijing Forestry University, Beijing 100083, China; (M.X.); (L.F.); (J.F.); (B.Z.)
- Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, Beijing 100083, China
| | - Piotr Dziugan
- Institute of Fermentation Technology & Microbiology, Technical University of Lodz, 90924 Lodz, Poland
| | - Bolin Zhang
- College of Biological Science & Biotechnology, Beijing Forestry University, Beijing 100083, China; (M.X.); (L.F.); (J.F.); (B.Z.)
- Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, Beijing 100083, China
- Correspondence: (B.Z.); (H.Z.)
| | - Hongfei Zhao
- College of Biological Science & Biotechnology, Beijing Forestry University, Beijing 100083, China; (M.X.); (L.F.); (J.F.); (B.Z.)
- Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, Beijing 100083, China
- Correspondence: (B.Z.); (H.Z.)
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Almatroodi SA, Alrumaihi F, Alsahli MA, Alhommrani MF, Khan A, Rahmani AH. Curcumin, an Active Constituent of Turmeric Spice: Implication in the Prevention of Lung Injury Induced by Benzo(a) Pyrene (BaP) in Rats. Molecules 2020; 25:molecules25030724. [PMID: 32046055 PMCID: PMC7037262 DOI: 10.3390/molecules25030724] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 01/31/2020] [Accepted: 02/05/2020] [Indexed: 02/07/2023] Open
Abstract
Benzo(a)pyrene (BaP) is a well-known carcinogen and enhances oxidative stress and apoptosis and also alters several molecular pathways. Curcumin is an active ingredient of Curcuma longa, and it has potent anti-inflammatory, antioxidant activity that defends cells from oxidative stress and cell death. The objectives of the present study were to explore the protective effects of curcumin against long-term administration of BaP induced disturbances in lungs of rats. Male rats were randomly divided into four groups: saline control, BaP only, BaP + curcumin, and curcumin only. Lung histopathology, electron microscopy, inflammatory cytokine release, antioxidant levels, apoptosis, and cell cycle were examined. Instillation of BaP significantly increased infiltration of inflammatory cells in alveolar space and inflammatory cytokine in blood. BaP induced lung tissue alterations including mild bronchitis, scant chronic inflammatory cell infiltrate in the wall of the respiratory bronchiole, and mild intra-alveolar haemorrhage. However, these alterations were found to be significantly less as mild inflammatory cell infiltrate in curcumin plus BaP treated group. Furthermore, electron microscopy results also showed necrotic changes and broken cell membrane of Type-II epithelial cell of alveoli in BaP group, which was reduced after adding curcumin treatment. In addition, we found BaP plus curcumin treatment effectively reduced inflammatory cytokines Tumour Necrosis Factor alpha (TNF-α), Interleukin 6 (IL-6), and C-reactive protein (CRP) levels in blood serum. Moreover, the levels of tunnel staining and p53 expression were significantly increased by BaP, whereas these changes were noticeably modulated after curcumin treatment. BaP also interferes in normal cell cycle, which was significantly improved with curcumin treatment. Overall, our findings suggest that curcumin attenuates BaP -induced lung injury, probably through inhibiting inflammation, oxidative stress and apoptosis in lung epithelial cells, and improving cell proliferation and antioxidants level. Thus, curcumin may be an alternative therapy for improving the outcomes of Benzo(a)pyrene-induced lung injury.
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Affiliation(s)
- Saleh A. Almatroodi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
| | - Faris Alrumaihi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
| | - Mohammed A. Alsahli
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
| | - Mazen Fahad Alhommrani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
| | - Arif Khan
- Department of Basic Health Sciences, College of Applied Medical Science, Qassim University, Buraidah 52571, Saudi Arabia;
| | - Arshad Husain Rahmani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
- Correspondence: ; Tel.: +3800050 (ext. 4835)
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Chan Kwon Y, Sik Kim H, Lee BM. Detoxifying effects of optimal hyperoxia (40% oxygenation) exposure on benzo[a]pyrene-induced toxicity in human keratinocytes. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2020; 83:82-94. [PMID: 32065759 DOI: 10.1080/15287394.2020.1730083] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Detoxifying effects of hyperoxia, which is widely used in clinical practice, were investigated using HaCat cells (human keratinocytes) treated with benzo[a]pyrene (B[a]P) as a model agent to induce adverse effects in the skin. It is well-established that B[a]P may produce toxicities including cancer, endocrine disruption, and phototoxicity involving DNA damage, free radical generation, and down regulation of nuclear factor erythroid 2-related factor 2 (Nrf2). It is well-known that Nrf2 is associated increase of antioxidant enzyme catalase (CAT) or detoxification enzyme glutathione S-transferase (GST) in HaCat cells treated with B[a]P under optimal condition of hyperoxia (40% oxygenation) conditions. To further examine the underlying basis of this phenomenon, factors affecting the expression of Nrf2 were determined. Nrf2 was upregulated accompanied by a rise in p38 MAPK, sequestosome-1 (also known as p62) and NF-κB. In contrast, Nrf2 was downregulated associated with an elevation in glycogen synthase kinase 3 beta (GSK-3β) and peroxisome proliferator-activated receptor alpha (PPARα). Hyperoxia was also found to diminish DNA damage and generation of free radicals initiated in B[a]P-treated cells which was attributed to an significant rise of Nrf2, leading to elevated antioxidant activities or detoxification proteins including heme oxygenase 1 (HO-1), superoxide dismutase (SOD), glutathione peroxidase-1/2 (GPX-1/2), CAT, GST and glutathione (GSH). In addition, factors related to skin aging were also altered by hyperoxia. Data suggest that optimal hyperoxia exposure of 40% oxygenation may reduce cellular toxicity induced by B[a]P in HaCat cells as evidenced by inhibition of DNA damage, free radical generation, and down-regulation of Nrf2.
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Affiliation(s)
- Yong Chan Kwon
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Hyung Sik Kim
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Byung-Mu Lee
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon, South Korea
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