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Fernández-Murga ML, Gil-Ortiz F, Serrano-García L, Llombart-Cussac A. A New Paradigm in the Relationship between Gut Microbiota and Breast Cancer: β-glucuronidase Enzyme Identified as Potential Therapeutic Target. Pathogens 2023; 12:1086. [PMID: 37764894 PMCID: PMC10535898 DOI: 10.3390/pathogens12091086] [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: 07/12/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 09/29/2023] Open
Abstract
Breast cancer (BC) is the most frequently occurring malignancy and the second cancer-specific cause of mortality in women in developed countries. Over 70% of the total number of BCs are hormone receptor-positive (HR+), and elevated levels of circulating estrogen (E) in the blood have been shown to be a major risk factor for the development of HR+ BC. This is attributable to estrogen's contribution to increased cancer cell proliferation, stimulation of angiogenesis and metastasis, and resistance to therapy. The E metabolism-gut microbiome axis is functional, with subjacent individual variations in the levels of E. It is conceivable that the estrobolome (bacterial genes whose products metabolize E) may contribute to the risk of malignant neoplasms of hormonal origin, including BC, and may serve as a potential biomarker and target. It has been suggested that β-glucuronidase (GUS) enzymes of the intestinal microbiome participate in the strobolome. In addition, it has been proposed that bacterial GUS enzymes from the gastrointestinal tract participate in hormone BC. In this review, we discuss the latest knowledge about the role of the GUS enzyme in the pathogenesis of BC, focusing on (i) the microbiome and E metabolism; (ii) diet, estrobolome, and BC development; (iii) other activities of the bacterial GUS; and (iv) the new molecular targets for BC therapeutic application.
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Affiliation(s)
- M. Leonor Fernández-Murga
- Clinical and Molecular Oncology Laboratory, Hospital Arnau de Vilanova-Liria, FISABIO, 46015 Valencia, Spain; (L.S.-G.); (A.L.-C.)
| | | | - Lucía Serrano-García
- Clinical and Molecular Oncology Laboratory, Hospital Arnau de Vilanova-Liria, FISABIO, 46015 Valencia, Spain; (L.S.-G.); (A.L.-C.)
| | - Antonio Llombart-Cussac
- Clinical and Molecular Oncology Laboratory, Hospital Arnau de Vilanova-Liria, FISABIO, 46015 Valencia, Spain; (L.S.-G.); (A.L.-C.)
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Xu Y, Cheng Y, Zhu Z, Guo H, Bassey AP, Huang T, Huang Y, Huang M. Inhibitory effect of mulberry leaf (Morus alba L.) extract on the formation of free and bound heterocyclic amines in pan-fried muscovy duck (Cairina moschata) patties. Food Control 2023. [DOI: 10.1016/j.foodcont.2022.109359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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3
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Li S, Wang L, Guan S, Zhou S, Chen Y. In vitro and in vivo low-dose exposure of simulated cooking oil fumes to assess adverse biological effects. Sci Rep 2022; 12:15691. [PMID: 36127488 PMCID: PMC9489699 DOI: 10.1038/s41598-022-19558-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 08/31/2022] [Indexed: 11/09/2022] Open
Abstract
Cooking oil fumes (COFs) represent a major indoor environmental pollutant and exhibit potent mutagenic or carcinogenic health effects caused by containing various heterocyclic aromatic amines (HAAs) and long-chain aldehydes. Despite some evaluation of the cumulative exposure of COFs to cancer cells under high concentration were evaluated, their biological adverse effects with low-dose exposure to healthy cells had been inadequately investigated. Herein, we firstly scrutinized the three selected typically toxic compounds of heterocyclic amine 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP), 3,8-dimethylammidazo[4,5-f]quinoxalin-2-amine (MeIQx) and trans, trans-2,4-decadienal (TDA)) emitted from COFs. In vitro studies revealed that the PhIP, MeIQx and TDA aerosol particles were negligible toxicity to cancer cells (A549 and HepG-2) but strong cytotoxicity to normal healthy cells (HelF and L02) under 0.5–4 μg/mL low dose exposure based on the reactive oxygen species (ROS) mechanism. In vivo studies demonstrated that PhIP caused significant lung and liver damage after exposure to PhIP for 30 days with mice. These results indicated the direct proof of healthy cell damage even at low-dose exposure to HAAs and aldehydes.
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Affiliation(s)
- Shuangde Li
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Li Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical, Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Shanyue Guan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical, Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Shuyun Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical, Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yunfa Chen
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
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Hepatic, Extrahepatic and Extracellular Vesicle Cytochrome P450 2E1 in Alcohol and Acetaminophen-Mediated Adverse Interactions and Potential Treatment Options. Cells 2022; 11:cells11172620. [PMID: 36078027 PMCID: PMC9454765 DOI: 10.3390/cells11172620] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/03/2022] [Accepted: 08/19/2022] [Indexed: 12/15/2022] Open
Abstract
Alcohol and several therapeutic drugs, including acetaminophen, are metabolized by cytochrome P450 2E1 (CYP2E1) into toxic compounds. At low levels, these compounds are not detrimental, but higher sustained levels of these compounds can lead to life-long problems such as cytotoxicity, organ damage, and cancer. Furthermore, CYP2E1 can facilitate or enhance the effects of alcohol-drug and drug-drug interactions. In this review, we discuss the role of CYP2E1 in the metabolism of alcohol and drugs (with emphasis on acetaminophen), mediating injury/toxicities, and drug-drug/alcohol-drug interactions. Next, we discuss various compounds and various nutraceuticals that can reduce or prevent alcohol/drug-induced toxicity. Additionally, we highlight experimental outcomes of alcohol/drug-induced toxicity and potential treatment strategies. Finally, we cover the role and implications of extracellular vesicles (EVs) containing CYP2E1 in hepatic and extrahepatic cells and provide perspectives on the clinical relevance of EVs containing CYP2E1 in intracellular and intercellular communications leading to drug-drug and alcohol-drug interactions. Furthermore, we provide our perspectives on CYP2E1 as a druggable target using nutraceuticals and the use of EVs for targeted drug delivery in extrahepatic and hepatic cells, especially to treat cellular toxicity.
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Zhang L, Wang Q, Wang Z, Chen Q, Sun F, Xu M, Kong B. Influence of different ratios of sucrose and green tea leaves on heterocyclic aromatic amine formation and quality characteristics of smoked chicken drumsticks. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108613] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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6
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Wu K, Liu L, Shu T, Li A, Xia D, Sun X. The relationship between processed meat, red meat, and risk of types of cancer: A Mendelian randomization study. Front Nutr 2022; 9:942155. [PMID: 36204379 PMCID: PMC9530935 DOI: 10.3389/fnut.2022.942155] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/17/2022] [Indexed: 11/23/2022] Open
Abstract
Background Observational studies have suggested processed and red meat may increase the risk of cancer. However, the causal effects and direction between them were still unclear. We conducted two-sample Mendelian randomization (MR) analysis to evaluate the causal effect of processed meat and red meat on the risk of nine common types of cancer, namely, lung, ovarian, endometrial, breast, kidney, gastric, prostate, skin, and oropharyngeal cancer. Methods Genome-wide association studies (GWAS) for processed meat and red meat (pork, beef, and mutton) were obtained from the UK Biobank. GWAS of types of cancer in this study were extracted from the genetic consortia and the FinnGen consortium. The inverse variance weighted (IVW) was carried out as the main method for two-sample MR analysis. Sensitivity analyses were used to assess the robustness of the results. Results Genetically predicted processed meat intake was causally associated with increased risk of lung cancer (OR [odds ratio] = 1.923, 95% CI = 1.084-3.409, P = 0.025). There is no convincing evidence for the associations between genetically determined processed meat, red meat, and the risk of other cancers we studied. Conclusion Our results suggested that intake of processed meat may increase the risk of lung cancer. These findings provided no evidence to support that consumption of processed and red meat has a large effect on the risk of other cancers we studied. Further research is needed to clarify the results.
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Affiliation(s)
- Kaiwen Wu
- School of Medicine, Southwest Jiaotong University, Department of Gastroenterology, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Lei Liu
- Medical Research Center, Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Tao Shu
- School of Medicine, Southwest Jiaotong University, Department of Gastroenterology, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Aoshuang Li
- School of Medicine, Southwest Jiaotong University, Department of Gastroenterology, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Demeng Xia
- Luodian Clinical Drug Research Center, Shanghai Baoshan Luodian Hospital, Shanghai University, Shanghai, China
| | - Xiaobin Sun
- School of Medicine, Southwest Jiaotong University, Department of Gastroenterology, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
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Li X, Dong L, Yu H, Zhang Y, Wang S. Bioinformatic Analysis Identified Hub Genes Associated with Heterocyclic Amines Induced Cytotoxicity of Peripheral Blood Mononuclear Cells. Genes (Basel) 2021; 12:genes12121888. [PMID: 34946837 PMCID: PMC8700875 DOI: 10.3390/genes12121888] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/18/2021] [Accepted: 11/24/2021] [Indexed: 02/07/2023] Open
Abstract
Heterocyclic amines (HCAs) are a set of food contaminants that may exert a cytotoxic effect on human peripheral blood mononuclear cells (PBMC). However, the genetic mechanism underlying the cytotoxicity of HCAs on PBMC has not been investigated. In the study, bioinformatic analysis on gene dataset GSE19078 was performed. The results of weighted correlation network analysis and linear models for microarray and RNA-seq data analysis showed that four gene modules were relevant to 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) exposure while one gene module was correlated with 2-amino-3-methyl-3H-imidazo[4,5f]quinoline (IQ) exposure. Gene functional analysis showed that the five modules were annotated mainly with mRNA transcriptional regulation, mitochondrial function, RNA catabolic process, protein targeting, and immune function. Five genes, MIER1, NDUFA4, MLL3, CD53 and CSF3 were recognized as the feature genes for each hub gene network of the corresponding gene module, and the expression of feature genes was observed with a significant difference between the PhIP/IQ samples and the other samples. Our results provide novel genes and promising mechanisms for exploration on the genetic mechanism of HCAs on PBMC.
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Affiliation(s)
- Xinyang Li
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China; (X.L.); (L.D.); (Y.Z.)
| | - Lu Dong
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China; (X.L.); (L.D.); (Y.Z.)
| | - Huaning Yu
- Midea Group Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd., Foshan 528000, China;
| | - Yan Zhang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China; (X.L.); (L.D.); (Y.Z.)
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China; (X.L.); (L.D.); (Y.Z.)
- Correspondence: ; Tel.: +86-22-85358445
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Tryggvadottir H, Sandén E, Björner S, Bressan A, Ygland Rödström M, Khazaei S, Edwards DP, Nodin B, Jirström K, Isaksson K, Borgquist S, Jernström H. The Prognostic Impact of Intratumoral Aryl Hydrocarbon Receptor in Primary Breast Cancer Depends on the Type of Endocrine Therapy: A Population-Based Cohort Study. Front Oncol 2021; 11:642768. [PMID: 34094928 PMCID: PMC8174786 DOI: 10.3389/fonc.2021.642768] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/22/2021] [Indexed: 11/25/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a master regulator of multiple pathways involved in breast cancer, and influences the estrogen receptor alpha (ER) and aromatase/CYP19A1. The purpose of this study was to elucidate the interplay between intratumoral levels of AhR and aromatase, patient characteristics (including AhR and CYP19A1 genotypes), clinicopathological features, and prognosis in breast cancer patients receiving adjuvant treatments. A prospective cohort of 1116 patients with primary breast cancer in Sweden, included 2002-2012, was followed until June 30th 2019 (median 8.7 years). Tumor-specific AhR (n=920) and aromatase levels (n=816) were evaluated on tissue microarrays using immunohistochemistry. Associations between cytoplasmatic (AhRcyt) and nuclear (AhRnuc) AhR levels, intratumoral aromatase, clinicopathological features, and prognosis in different treatment groups were analyzed. Low AhRcyt levels (n=183) and positive intratumoral aromatase (n=69) were associated with estrogen receptor (ER)- status and more aggressive tumors. Genotypes were not associated with their respective protein levels. The functional AhR Arg554Lys GG genotype was associated with recurrence-free survival in switch-therapy (sequential tamoxifen/aromatase inhibitors (AI) or AI/tamoxifen) treated patients (HRadj 0.42; 95% CI 0.22-0.83). High AhRcyt levels were associated with longer recurrence-free survival during the first 10 years of follow-up among tamoxifen-only treated patients (HRadj 0.40; 95% CI 0.23-0.71) compared to low AhRcyt levels, whereas an almost inverse association was seen in patients with switch-therapy (P interaction=0.023). Intratumoral aromatase had little prognostic impact. These findings warrant confirmation in an independent cohort, preferably in a randomized clinical trial comparing different endocrine regimens. They might also guide the selection of breast cancer patients for clinical trials with selective AhR modulators.
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Affiliation(s)
- Helga Tryggvadottir
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
| | - Emma Sandén
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
| | - Sofie Björner
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
| | - Alessandra Bressan
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
| | - Maria Ygland Rödström
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
| | - Somayeh Khazaei
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
| | - Dean P. Edwards
- Department of Molecular & Cellular Biology and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, United States
| | - Björn Nodin
- Division of Oncology and Therapeutic Pathology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
| | - Karin Jirström
- Division of Oncology and Therapeutic Pathology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
| | - Karolin Isaksson
- Division of Surgery, Department of Clinical Sciences, Lund, Lund University, Lund, Sweden
- Department of Surgery, Kristianstad Hospital, Kristianstad, Sweden
| | - Signe Borgquist
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
- Department of Oncology, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
| | - Helena Jernström
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University and Skåne University Hospital, Lund, Sweden
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Anandakumar P, Kamaraj S, Vanitha MK. D-limonene: A multifunctional compound with potent therapeutic effects. J Food Biochem 2020; 45:e13566. [PMID: 33289132 DOI: 10.1111/jfbc.13566] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/15/2020] [Accepted: 10/31/2020] [Indexed: 12/13/2022]
Abstract
D-limonene or 4-isopropenyl-1-methylcyclohexene (C10 H16 ) is a monocyclic monoterpene abundant in citrus plants like lemon, orange, and grape. The application of D-limonene in the form of flavor and fragrance additive in perfumes, soaps, foods, and beverages is consistently increased due to its high-quality fragrance property. This review is intended to analyze and delineate every possible available evidence and details about D-limonene with the special focus on its therapeutic efficacy. Many studies have reported that D-limonene effectively plays a valuable role in the prevention of several chronic and degenerative diseases. This review provides worthy information about the beneficial effects of D-limonene such as antioxidant, antidiabetic, anticancer, anti-inflammatory, cardioprotective, gastroprotective, hepatoprotective, immune modulatory, anti-fibrotic, anti-genotoxic etc. This could in turn help in the application of D-limonene for clinical studies. PRACTICAL IMPLICATIONS: Various plant families contain Terpenes as their secondary metabolites. Monoterpenes constitute an important part of these secondary metabolites. D-limonene is a well-identified monoterpene that is commonly applied as a fragrance ingredient in essential oils. D-limonene is known to possess remarkable biological activities. It can be effectively used for treating various ailments and diseases. Due to its diverse functions, it can be efficiently utilized for human health.
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Affiliation(s)
- Pandi Anandakumar
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Deoghar, Jharkhand, India
| | - Sattu Kamaraj
- Department of Biotechnology, Periyar University, PG Extension Centre, Dharmapuri, Tamilnadu, India
| | - Manickam Kalappan Vanitha
- Department of Medical Biochemistry, University of Madras, Taramani Campus, Chennai, Tamilnadu, India
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Salim E, El-Sisi AED, Sokar S, El-Sayad M, Moussa E. Metformin potentiates the chemotherapeutic effects of doxorubicin on 2-amino-1-methyl-6-phenylimidazo[4,5b] pyridine-induced Mammary Carcinoma in rats. Fundam Clin Pharmacol 2020; 35:700-713. [PMID: 32905620 DOI: 10.1111/fcp.12604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/20/2020] [Accepted: 09/02/2020] [Indexed: 11/28/2022]
Abstract
This study was carried out to evaluate the antitumor activity of Metformin (Met) and its impending utility to potentiate the chemotherapeutic action of doxorubicin on 2-amino-1-methyl-6-phenylimidazo[4,5b]pyridine (PhIP)-induced rat mammary carcinogenesis. Female Sprague -Dawley (SD) rats were divided into seven groups (n = 15 each). Mammary carcinogenesis was induced by the administration of PhIP at a dose of 75 mg/kg by gavage. Met treatment was 2 mg/ml in drinking water for 26 weeks started after the last PhIP dose. Doxorubicin (Dox) treatment started after one month of the last PhIP dose with a dose of 4 mg/kg, i.v. once per week for 4 weeks. Compared to the PhIP group, the latency period of tumors in the PhIP+Dox, PhIP+Met, and PhIP+Dox+Met groups were significantly increased and tumors' incidences and multiplicities were significantly reduced. By immunohistochemistry, carcinomas from the combination treatment groups showed a significant decrease in the labeling indexes (LI%) of cellular proliferation and CD44 compared to the PhIP group while LI% for ERα was significantly decreased in all combination treatment groups compared to the PhIP-administered group. Moreover, the quantitative mRNA expression of ERα was significantly decreased in mammary tumors from PhIP + Dox+Met combined group more than the PhIP + Dox group. However, mRNA expression of EGF was found significantly lower in all combination treatment groups compared to the PhIP group. These findings suggest that Metformin potentiate the antitumor efficacy of doxorubicin and had beneficial effects on PhIP-induced mammary carcinogenesis through the prevention of cellular proliferation and mRNA expression of ERα and EGF.
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Affiliation(s)
- Elsayed Salim
- Department of Zoology, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Alaa El-Din El-Sisi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
| | - Samia Sokar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
| | - Magda El-Sayad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
| | - Ethar Moussa
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
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Dietary phytochemicals as the potential protectors against carcinogenesis and their role in cancer chemoprevention. Clin Exp Med 2020; 20:173-190. [PMID: 32016615 DOI: 10.1007/s10238-020-00611-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/27/2020] [Indexed: 02/06/2023]
Abstract
Health-threatening consequences of carcinogen exposure are mediated via occurrence of electrophiles or reactive oxygen species. As a result, the accumulation of biomolecular damage leads to the cancer initiation, promotion or progression. Accordingly, there is an association between lifestyle factors including inappropriate diet or carcinogen formation during food processing, mainstream, second or third-hand tobacco smoke and other environmental or occupational carcinogens and malignant transformation. Nevertheless, increasing evidence supports the protective effects of naturally occurring phytochemicals against carcinogen exposure as well as carcinogenesis in general. Isolated phytochemicals or their mixtures present in the whole plant food demonstrate efficacy against malignancy induced by carcinogens widely spread in our environment. Phytochemicals also minimize the generation of carcinogenic substances during the processing of meat and meat products. Based on numerous data, selected phytochemicals or plant foods should be highly recommended to become a stable and regular part of the diet as the protectors against carcinogenesis.
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Song BJ, Abdelmegeed MA, Cho YE, Akbar M, Rhim JS, Song MK, Hardwick JP. Contributing Roles of CYP2E1 and Other Cytochrome P450 Isoforms in Alcohol-Related Tissue Injury and Carcinogenesis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1164:73-87. [PMID: 31576541 DOI: 10.1007/978-3-030-22254-3_6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The purpose of this review is to briefly summarize the roles of alcohol (ethanol) and related compounds in promoting cancer and inflammatory injury in many tissues. Long-term chronic heavy alcohol exposure is known to increase the chances of inflammation, oxidative DNA damage, and cancer development in many organs. The rates of alcohol-mediated organ damage and cancer risks are significantly elevated in the presence of co-morbidity factors such as poor nutrition, unhealthy diets, smoking, infection with bacteria or viruses, and exposure to pro-carcinogens. Chronic ingestion of alcohol and its metabolite acetaldehyde may initiate and/or promote the development of cancer in the liver, oral cavity, esophagus, stomach, gastrointestinal tract, pancreas, prostate, and female breast. In this chapter, we summarize the important roles of ethanol/acetaldehyde in promoting inflammatory injury and carcinogenesis in several tissues. We also review the updated roles of the ethanol-inducible cytochrome P450-2E1 (CYP2E1) and other cytochrome P450 isozymes in the metabolism of various potentially toxic substrates, and consequent toxicities, including carcinogenesis in different tissues. We also briefly describe the potential implications of endogenous ethanol produced by gut bacteria, as frequently observed in the experimental models and patients of nonalcoholic fatty liver disease, in promoting DNA mutation and cancer development in the liver and other tissues, including the gastrointestinal tract.
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Affiliation(s)
- Byoung-Joon Song
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD, USA.
| | - Mohamed A Abdelmegeed
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD, USA
| | - Young-Eun Cho
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD, USA.,Department of Food Science and Nutrition, Andong National University, Andong, Republic of Korea
| | - Mohammed Akbar
- Division of Neuroscience and Behavior, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD, USA
| | - Johng S Rhim
- Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Min-Kyung Song
- Investigational Drug Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | - James P Hardwick
- Biochemistry and Molecular Pathology in the Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA
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Emergence of mutagenic/carcinogenic heterocyclic amines in traditional Saudi chicken dishes prepared from local restaurants. Food Chem Toxicol 2019; 132:110677. [DOI: 10.1016/j.fct.2019.110677] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/09/2019] [Accepted: 07/12/2019] [Indexed: 12/13/2022]
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14
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Malik DES, David RM, Gooderham NJ. Interleukin-6 selectively induces drug metabolism to potentiate the genotoxicity of dietary carcinogens in mammary cells. Arch Toxicol 2019; 93:3005-3020. [PMID: 31515600 DOI: 10.1007/s00204-019-02558-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/02/2019] [Indexed: 12/15/2022]
Abstract
Breast cancer is the most commonly diagnosed malignancy in females, the etiology being multifactorial and includes the role of lifestyle exposure to DNA-damaging chemicals such as dietary carcinogens benzo (a) pyrene (BaP) and 2-amino-1-methyl-6-phenylimidazo [4, 5-b] pyridine (PhIP). Both compounds require cytochrome P450 (CYP)-mediated metabolic activation to DNA-damaging species, and both induce transcriptional responses through the nuclear receptors Aryl hydrocarbon receptor (AhR) and estrogen receptor α (ERα). BaP and PhIP are mammary carcinogens in rodents. Clinically, circulating IL-6 expression is linked with poor prognosis of cancer and 35% of the deaths in breast cancer are linked with inflammation. The objective of this work was to investigate the molecular toxicology and local activation of BaP and PhIP in the presence of IL-6. Our laboratory has previously reported that miR27b can regulate CYP1B1 expression in colorectal cells, here we have investigated if this mechanism is working in mammary cell models, MCF-7 and MDA-MB-231 cells. Treatment (24 h) of cells with BaP (10 nM-10 µM) and PhIP (100 nM-100 µM) significantly induced genetic damage (micronuclei formation) in a dose-dependent manner in both cell lines. This effect was potentiated in the presence of human IL-6 at concentrations reported to be expressed in clinical breast cancer. On its own, IL-6 treatment failed to induce micronuclei frequency above the control levels in these cells. Compared to BaP or PhIP treatment alone, IL-6 plus BaP or PhIP selectively induced CYP1B1 significantly in both cell lines. Additionally, miR27b expression was downregulated by IL-6 treatments and transfection with miR27b inhibitor confirmed that miR27b is a regulator of CYP1B1 in both cell lines. These data show that BaP- and PhIP-induced DNA damage in mammary cells is potentiated by the inflammatory cytokine IL-6 and that inflammation-induced CYP expression, specifically CYP1B1 via miR27b, is responsible for this effect.
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Affiliation(s)
- Durr-E-Shahwar Malik
- Metabolism, Digestion and Reproduction, Imperial College London, London, SW7 2AZ, UK
| | - Rhiannon M David
- Metabolism, Digestion and Reproduction, Imperial College London, London, SW7 2AZ, UK
- Genetic Toxicology, Discovery Safety, Drug Safety and Metabolism, IMED Biotech Unit, AstraZeneca, Cambridge, UK
| | - Nigel J Gooderham
- Metabolism, Digestion and Reproduction, Imperial College London, London, SW7 2AZ, UK.
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