1
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Mao X, Li H, Zheng J. Effects of xenobiotics on CYP1 enzyme-mediated biotransformation and bioactivation of estradiol. Drug Metab Rev 2023; 55:1-49. [PMID: 36823774 DOI: 10.1080/03602532.2023.2177671] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Endogenous estradiol (E2) exerts diverse physiological and pharmacological activities, commonly used for hormone replacement therapy. However, prolonged and excessive exposure to E2 potentially increases estrogenic cancer risk. Reportedly, CYP1 enzyme-mediated biotransformation of E2 is largely concerned with its balance between detoxification and carcinogenic pathways. Among the three key CYP1 enzymes (CYP1A1, CYP1A2, and CYP1B1), CYP1A1 and CYP1A2 mainly catalyze the formation of nontoxic 2-hydroxyestradiol (2-OH-E2), while CYP1B1 specifically catalyzes the formation of genotoxic 4-hydroxyestradiol (4-OH-E2). 4-OH-E2 can be further metabolized to electrophilic quinone intermediates accompanied by the generation of reactive oxygen species (ROS), triggering DNA damage. Since abnormal alterations in CYP1 activities can greatly affect the bioactivation process of E2, regulatory effects of xenobiotics on CYP1s are essential for E2-associated cancer development. To date, thousands of natural and synthetic compounds have been found to show potential inhibition and/or induction actions on the three CYP1 members. Generally, these chemicals share similar planar polycyclic skeletons, the structural motifs and substituent groups of which are important for their inhibitory/inductive efficiency and selectivity toward CYP1 enzymes. This review comprehensively summarizes these known inhibitors and/or inductors of E2-metabolizing CYP1s based on chemical categories and discusses their structure-activity relationships, which would contribute to better understanding of the correlation between xenobiotic-regulated CYP1 activities and estrogenic cancer susceptibility.
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Affiliation(s)
- Xu Mao
- Department of Pharmaceutical Analysis, College of Pharmacy, Mudanjiang Medical University, Mudanjiang, China
| | - Hui Li
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ, USA
| | - Jiang Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, China.,Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, China
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2
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Mo J, Tong Y, Ma J, Wang K, Feng Y, Wang L, Jiang H, Jin C, Li J. The mechanism of flavonoids from Cyclocarya paliurus on inhibiting liver cancer based on in vitro experiments and network pharmacology. Front Pharmacol 2023; 14:1049953. [PMID: 36817123 PMCID: PMC9936097 DOI: 10.3389/fphar.2023.1049953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 01/25/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction: Cyclocarya paliurus (Batal.) Iljinsk., a subtropical tree belonging to the family Juglandaceae, is rich in polysaccharides, flavonoids, and terpenoids. It has important pharmacological effects such as lowering blood lipids, blood sugar, and blood pressure. However, little has been discerned regarding anti tumor effects and their potential mechanisms. Method: In vitro cell culture experiments were used to test the effect of C. paliurus total flavonoids (CTFs) extract on apoptosis mechanisms in HepG2 cells. Network pharmacology was applied to further explore the effects of CTFs on liver cancer as well as the mechanisms through which these effects might be achieved. Both 3 hydroxyflavone and luteolin were randomly selected to verify the effect on inducing apoptosis and inhibiting the proliferation of HepG2 cells. Results and Discussion: Network pharmacological analysis was applied to these 62 compounds and their targets, and 13 flavonoids were further screened for their potential anti liver cancer activity. These 13 flavonoids included: tangeretin, baicalein, 7,3'-dihydroxyflavone, velutin, 3-hydroxyflavone, chrysin, kumatakenin, tricin, luteolin, chrysoeriol, apigenin, pinocembrin, and butin. Together, these flavonoids were predicted to interact with AKT1, MAPK3, PIK3CA, EGFR, MAP2K1, SRC, IGF1R, IKBKB, MET, and MAPK14. It was predicted that the inhibitory effect on hepatocellular carcinoma would be accomplished by regulation of core proteins relating to such KEGG pathways as cancer, PI3K-Akt, proteoglycans in cancer, microRNAs in cancer, and endocrine resistance via core target proteins. Both 3-hydroxyflavone and luteolin were demonstrated to induce apoptosis and inhibit the proliferation of HepG2 cells. Our study provides scientific evidence supporting the use of CTFs for the treatment of liver cancer.
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Affiliation(s)
- Jinggang Mo
- Department of General Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China
| | - Yingpeng Tong
- School of Advanced Study, Taizhou University, Taizhou, China
| | - Junxia Ma
- Zhejiang Provincial Key Laboratory of Evolutionary Ecology and Conservation, Taizhou University, Taizhou, China
| | - Kunpeng Wang
- Department of General Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China
| | - Yifu Feng
- Department of General Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China
| | - Liezhi Wang
- Department of General Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China
| | - Hao Jiang
- Department of General Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China
| | - Chong Jin
- Department of General Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China,*Correspondence: Chong Jin, ; Junmin Li,
| | - Junmin Li
- School of Advanced Study, Taizhou University, Taizhou, China,Zhejiang Provincial Key Laboratory of Evolutionary Ecology and Conservation, Taizhou University, Taizhou, China,*Correspondence: Chong Jin, ; Junmin Li,
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3
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Jha RK, Khan RJ, Parthiban A, Singh E, Jain M, Amera GM, Singh RP, Ramachandran P, Ramachandran R, Sachithanandam V, Muthukumaran J, Singh AK. Identifying the natural compound Catechin from tropical mangrove plants as a potential lead candidate against 3CL pro from SARS-CoV-2: An integrated in silico approach. J Biomol Struct Dyn 2022; 40:13392-13411. [PMID: 34644249 DOI: 10.1080/07391102.2021.1988710] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
SARS-CoV-2, a member of beta coronaviruses, is a single-stranded, positive-sense RNA virus responsible for the COVID-19 pandemic. With global fatalities of the pandemic exceeding 4.57 million, it becomes crucial to identify effective therapeutics against the virus. A protease, 3CLpro, is responsible for the proteolysis of viral polypeptides into functional proteins, which is essential for viral pathogenesis. This indispensable activity of 3CLpro makes it an attractive target for inhibition studies. The current study aimed to identify potential lead molecules against 3CLpro of SARS-CoV-2 using a manually curated in-house library of antiviral compounds from mangrove plants. This study employed the structure-based virtual screening technique to evaluate an in-house library of antiviral compounds against 3CLpro of SARS-CoV-2. The library was comprised of thirty-three experimentally proven antiviral molecules extracted from different species of tropical mangrove plants. The molecules in the library were virtually screened using AutoDock Vina, and subsequently, the top five promising 3CLpro-ligand complexes along with 3CLpro-N3 (control molecule) complex were subjected to MD simulations to comprehend their dynamic behaviour and structural stabilities. Finally, the MM/PBSA approach was used to calculate the binding free energies of 3CLpro complexes. Among all the studied compounds, Catechin achieved the most significant binding free energy (-40.3 ± 3.1 kcal/mol), and was closest to the control molecule (-42.8 ± 5.1 kcal/mol), and its complex with 3CLpro exhibited the highest structural stability. Through extensive computational investigations, we propose Catechin as a potential therapeutic agent against SARS-CoV-2. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Rajat Kumar Jha
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, U.P., India
| | - Rameez Jabeer Khan
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, U.P., India
| | - A Parthiban
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Government of India, Anna University Campus, Chennai, Tamil Nadu, India.,Department of Chemistry, School of Arts and Sciences, Vinayaka Mission's Research Foundation, AVIT campus, Chennai, India
| | - Ekampreet Singh
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, U.P., India
| | - Monika Jain
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, U.P., India
| | - Gizachew Muluneh Amera
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, U.P., India.,Department of Biotechnology, College of Natural and Computational Sciences, Wollo University, Dessie, Ethiopia
| | - Rashmi Prabha Singh
- Department of Biotechnology, IILM College of Engineering & Technology, Greater Noida, U.P, India
| | - Purvaja Ramachandran
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Government of India, Anna University Campus, Chennai, Tamil Nadu, India
| | - Ramesh Ramachandran
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Government of India, Anna University Campus, Chennai, Tamil Nadu, India
| | - V Sachithanandam
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Government of India, Anna University Campus, Chennai, Tamil Nadu, India
| | - Jayaraman Muthukumaran
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, U.P., India
| | - Amit Kumar Singh
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, U.P., India
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4
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Wongkularb S, Limboonreung T, Tuchinda P, Chongthammakun S. Suppression of PI3K/Akt/mTOR pathway in chrysoeriol-induced apoptosis of rat C6 glioma cells. In Vitro Cell Dev Biol Anim 2022; 58:29-36. [PMID: 34907494 DOI: 10.1007/s11626-021-00634-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 11/04/2021] [Indexed: 12/30/2022]
Abstract
Chrysoeriol, a dietary methoxyflavonoid which is found in tropical medicinal plants, has been shown to have antioxidant, anti-inflammatory, and antineoplastic properties. The present study aimed to investigate the effects of chrysoeriol and its related mechanisms in rat C6 glioma cells. Cell viability in rat C6 glioma cells were measured by MTT assay. The protein expression levels of cleaved caspase-3, caspase-3, pro-apoptotic (Bax), anti-apoptotic protein (Bcl-2), and Annexin V were detected by Western blot analysis and immunocytochemical staining. Results showed that chrysoeriol significantly decreased cell viability and induced apoptosis in rat C6 glioma cells. Chrysoeriol significantly increased the levels of Bax/Bcl-2 ratio and cleaved caspase-3/caspase-3 ratio. Moreover, treatment with chrysoeriol significantly reduced the phosphorylation of PI3K, Akt, and mTOR expression in ratios. These results suggest that chrysoeriol promote apoptosis in rat C6 glioma cells via suppression of the PI3K/Akt/mTOR signaling pathway, thereby demonstrating the potential antineoplastic effects of chrysoeriol on glioma cells.
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Affiliation(s)
- Suppanut Wongkularb
- Molecular Medicine Graduate Program, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
| | - Tanapol Limboonreung
- Department of Oral Biology, Faculty of Dentistry, King Mongkut's Institute of Technology Ladkrabang, Ladkrabang, Bangkok, 10520, Thailand
| | - Patoomratana Tuchinda
- Department of Chemistry, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
| | - Sukumal Chongthammakun
- Department of Anatomy and Center of Neuroscience, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand.
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5
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Starek-Świechowicz B, Budziszewska B, Starek A. Endogenous estrogens-breast cancer and chemoprevention. Pharmacol Rep 2021; 73:1497-1512. [PMID: 34462889 PMCID: PMC8599256 DOI: 10.1007/s43440-021-00317-0] [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: 05/11/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 02/08/2023]
Abstract
Breast cancer is the most common female malignancy and the second leading cause of cancer related deaths. It is estimated that about 40% of all cancer in women is hormonally mediated. Both estrogens and androgens play critical roles in the initiation and development of breast cancer. Estrogens influence normal physiological growth, proliferation, and differentiation of breast tissues, as well as the development and progression of breast malignancy. Breast cancer is caused by numerous endo- and exogenous risk factors. The paper presents estrogen metabolism, in particular 17β-estradiol and related hormones. The mechanisms of estrogen carcinogenesis include the participation of estrogen receptors, the genotoxic effect of the estrogen metabolites, and epigenetic processes that are also presented. The role of reactive oxygen species in breast cancer has been described. It called attention to a role of numerous signaling pathways in neoplastic transformation. Chemoprotective agents, besides other phytoestrogens, classical antioxidants, synthetic compounds, and their mechanisms of action have been shown.
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Affiliation(s)
- Beata Starek-Świechowicz
- Department of Biochemical Toxicology, Chair of Toxicology, Medical College, Jagiellonian University, Medyczna 9, 30-688, Kraków, Poland.
| | - Bogusława Budziszewska
- Department of Biochemical Toxicology, Chair of Toxicology, Medical College, Jagiellonian University, Medyczna 9, 30-688, Kraków, Poland.,Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343, Kraków, Poland
| | - Andrzej Starek
- Department of Biochemical Toxicology, Chair of Toxicology, Medical College, Jagiellonian University, Medyczna 9, 30-688, Kraków, Poland
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6
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Li GH, Fang KL, Yang K, Cheng XP, Wang XN, Shen T, Lou HX. Thesium chinense Turcz.: An ethnomedical, phytochemical and pharmacological review. JOURNAL OF ETHNOPHARMACOLOGY 2021; 273:113950. [PMID: 33610713 DOI: 10.1016/j.jep.2021.113950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 01/30/2021] [Accepted: 02/14/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Thesium chinense Turcz. has been used to treat mastitis, pulmonitis, tonsillitis, iaryngopharyngitis and upper respiratory tract infections in the indigenous medicine of China for a long history. Presently, several pharmaceutics prepared by this medical herb have been clinically used for the therapy of infectious diseases. AIM OF THE REVIEW This review aims to comprehensively summarize the current researches on the ethnomedical, phytochemical and pharmacological aspects of T. chinense, and discuss their possible opportunities for the future research. MATERIALS AND METHODS Extensive database searches, including Web of Science, SciFinder, Google Scholar and China Knowledge Resource Integrated, were performed using keywords such as 'Thesium chinense', 'Bai Rui Cao', and their chemical constituents. In addition, local classic herbal literature on ethnopharmacology and relevant textbooks were consulted to provide a comprehensive survey of this ethnomedicine. RESULTS Thirty four chemical constituents, including flavonoids, alkaloids, and terpenoids, have been identified from T. chinense. Of which, flavonoids are the predominant and characteristic constituents. The crude extracts, the purified constituents, and commercial available pharmaceutics have displayed diverse in vitro and in vivo pharmacological functions (e.g. anti-inflammation, antimicrobial activity, analgesic effect, hepaprotection), and are particularly useful as a potential therapeutic agent against inflammation-related diseases. CONCLUSIONS T. chinense is an important ethnomedical medicine and possesses a satisfying effect for treating inflammation, microbial infection, and upper respiratory diseases. It has received plenty of researches on its phytochemical and pharmacological aspects since 1970s. These findings definitely establish the link between chemical composition and pharmacological application, and support the ethnomedical use of T. chinense in the indigenous medicine of China. However, chemical composition of this plant and the molecular mechanisms of purified constituents have not been comprehensively investigated, and thus the trace constituents and the therapeutic targets of bioactive constituents deserve a further exploration. Collectively, the researchers should pay more attention to a better understanding and application of this ethnomedical plant.
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Affiliation(s)
- Guo-Hui Li
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China; Department of Pharmacy, Jinan Maternity and Child Care Hospital, Jinan, People's Republic of China
| | - Kai-Li Fang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Kang Yang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Xin-Ping Cheng
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Xiao-Ning Wang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Tao Shen
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China.
| | - Hong-Xiang Lou
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China.
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7
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Lee HS, Lee IH, Kang K, Park SI, Moon SJ, Lee CH, Lee DY. A Network Pharmacology Study on the Molecular Mechanisms of FDY003 for Breast Cancer Treatment. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:3919143. [PMID: 33628298 PMCID: PMC7881938 DOI: 10.1155/2021/3919143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 01/25/2021] [Accepted: 01/29/2021] [Indexed: 02/07/2023]
Abstract
Herbal medicines have drawn considerable attention with regard to their potential applications in breast cancer (BC) treatment, a frequently diagnosed malignant disease, considering their anticancer efficacy with relatively less adverse effects. However, their mechanisms of systemic action have not been understood comprehensively. Based on network pharmacology approaches, we attempted to unveil the mechanisms of FDY003, an herbal drug comprised of Lonicera japonica Thunberg, Artemisia capillaris Thunberg, and Cordyceps militaris, against BC at a systemic level. We found that FDY003 exhibited pharmacological effects on human BC cells. Subsequently, detailed data regarding the biochemical components contained in FDY003 were obtained from comprehensive herbal medicine-related databases, including TCMSP and CancerHSP. By evaluating their pharmacokinetic properties, 18 chemical compounds in FDY003 were shown to be potentially active constituents interacting with 140 BC-associated therapeutic targets to produce the pharmacological activity. Gene ontology enrichment analysis using g:Profiler indicated that the FDY003 targets were involved in the modulation of cellular processes, involving the cell proliferation, cell cycle process, and cell apoptosis. Based on a KEGG pathway enrichment analysis, we further revealed that a variety of oncogenic pathways that play key roles in the pathology of BC were significantly enriched with the therapeutic targets of FDY003; these included PI3K-Akt, MAPK, focal adhesion, FoxO, TNF, and estrogen signaling pathways. Here, we present a network-perspective of the molecular mechanisms via which herbal drugs treat BC.
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Affiliation(s)
- Ho-Sung Lee
- The Fore, 87 Ogeum-ro, Songpa-gu, Seoul 05542, Republic of Korea
- Forest Hospital, 129 Ogeum-ro, Songpa-gu, Seoul 05549, Republic of Korea
| | - In-Hee Lee
- The Fore, 87 Ogeum-ro, Songpa-gu, Seoul 05542, Republic of Korea
| | - Kyungrae Kang
- Forest Hospital, 129 Ogeum-ro, Songpa-gu, Seoul 05549, Republic of Korea
| | - Sang-In Park
- Forestheal Hospital, 173 Ogeum-ro, Songpa-gu, Seoul 05641, Republic of Korea
| | - Seung-Joon Moon
- Forest Hospital, 129 Ogeum-ro, Songpa-gu, Seoul 05549, Republic of Korea
| | - Chol Hee Lee
- Forest Hospital, 129 Ogeum-ro, Songpa-gu, Seoul 05549, Republic of Korea
| | - Dae-Yeon Lee
- The Fore, 87 Ogeum-ro, Songpa-gu, Seoul 05542, Republic of Korea
- Forest Hospital, 129 Ogeum-ro, Songpa-gu, Seoul 05549, Republic of Korea
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8
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Li Y, Cui J, Jia J. The Activation of Procarcinogens by CYP1A1/1B1 and Related Chemo-Preventive Agents: A Review. Curr Cancer Drug Targets 2021; 21:21-54. [PMID: 33023449 DOI: 10.2174/1568009620666201006143419] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 08/08/2020] [Accepted: 08/20/2020] [Indexed: 02/06/2023]
Abstract
CYP1A1 and CYP1B1 are extrahepatic P450 family members involved in the metabolism of procarcinogens, such as PAHs, heterocyclic amines and halogen-containing organic compounds. CYP1A1/1B1 also participate in the metabolism of endogenous 17-β-estradiol, producing estradiol hydroquinones, which are the intermediates of carcinogenic semiquinones and quinones. CYP1A1 and CYP1B1 proteins share approximately half amino acid sequence identity but differ in crystal structures. As a result, CYP1A1 and CYP1B1 have different substrate specificity to chemical procarcinogens. This review will introduce the general molecular biology knowledge of CYP1A1/1B1 and the metabolic processes of procarcinogens regulated by these two enzymes. Over the last four decades, a variety of natural products and synthetic compounds which interact with CYP1A1/1B1 have been identified as effective chemo-preventive agents against chemical carcinogenesis. These compounds are mainly classified as indirect or direct CYP1A1/1B1 inhibitors based on their distinct mechanisms. Indirect CYP1A1/1B1 inhibitors generally impede the transcription and translation of CYP1A1/1B1 genes or interfere with the translocation of aryl hydrocarbon receptor (AHR) from the cytosolic domain to the nucleus. On the other hand, direct inhibitors inhibit the catalytic activities of CYP1A1/1B1. Based on the structural features, the indirect inhibitors can be categorized into the following groups: flavonoids, alkaloids and synthetic aromatics, whereas the direct inhibitors can be categorized into flavonoids, coumarins, stilbenes, sulfur containing isothiocyanates and synthetic aromatics. This review will summarize the in vitro and in vivo activities of these chemo-preventive agents, their working mechanisms, and related SARs. This will provide a better understanding of the molecular mechanism of CYP1 mediated carcinogenesis and will also give great implications for the discovery of novel chemo-preventive agents in the near future.
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Affiliation(s)
- Yubei Li
- China-UK Low Carbon College, Shanghai Jiaotong University, Shanghai, China
| | - Jiahua Cui
- School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai, China
| | - Jinping Jia
- School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai, China
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9
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Chrysoeriol Prevents TNFα-Induced CYP19 Gene Expression via EGR-1 Downregulation in MCF7 Breast Cancer Cells. Int J Mol Sci 2020; 21:ijms21207523. [PMID: 33053908 PMCID: PMC7588959 DOI: 10.3390/ijms21207523] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 01/06/2023] Open
Abstract
Estrogen overproduction is closely associated with the development of estrogen receptor-positive breast cancer. Aromatase, encoded by the cytochrome P450 19 (CYP19) gene, regulates estrogen biosynthesis. This study aimed to identify active flavones that inhibit CYP19 expression and to explore the underlying mechanisms. CYP19 expression was evaluated using reverse transcription PCR, quantitative real-time PCR, and immunoblot analysis. The role of transcription factor early growth response gene 1 (EGR-1) in CYP19 expression was assessed using the short-hairpin RNA (shRNA)-mediated knockdown of EGR-1 expression in estrogen receptor-positive MCF-7 breast cancer cells. We screened 39 flavonoids containing 26 flavones and 13 flavanones using the EGR1 promoter reporter activity assay and observed that chrysoeriol exerted the highest inhibitory activity on tumor necrosis factor alpha (TNFα)-induced EGR-1 expression. We further characterized and demonstrated that chrysoeriol inhibits TNFα-induced CYP19 expression through inhibition of extracellular signal-regulated kinase 1/2 (ERK1/2)-mediated EGR-1 expression. Chrysoeriol may be beneficial as a dietary supplement for the prevention of estrogen receptor-positive breast cancer, or as a chemotherapeutic adjuvant in the treatment of this condition.
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10
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Tang Q, Vianney YM, Weisz K, Grathwol CW, Link A, Bornscheuer UT, Pavlidis IV. Influence of Substrate Binding Residues on the Substrate Scope and Regioselectivity of a Plant
O
‐Methyltransferase against Flavonoids. ChemCatChem 2020. [DOI: 10.1002/cctc.202000471] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Qingyun Tang
- Institute of BiochemistryUniversity of Greifswald Felix-Hausdorff-Str. 4 17489 Greifswald Germany
| | - Yoanes M. Vianney
- Institute of BiochemistryUniversity of Greifswald Felix-Hausdorff-Str. 4 17489 Greifswald Germany
| | - Klaus Weisz
- Institute of BiochemistryUniversity of Greifswald Felix-Hausdorff-Str. 4 17489 Greifswald Germany
| | - Christoph W. Grathwol
- Institute of PharmacyUniversity of Greifswald Friedrich-Ludwig-Jahn-Str. 17 17489 Greifswald Germany
| | - Andreas Link
- Institute of PharmacyUniversity of Greifswald Friedrich-Ludwig-Jahn-Str. 17 17489 Greifswald Germany
| | - Uwe T. Bornscheuer
- Institute of BiochemistryUniversity of Greifswald Felix-Hausdorff-Str. 4 17489 Greifswald Germany
| | - Ioannis V. Pavlidis
- Dept. of ChemistryUniversity of Crete Voutes University Campus 70013 Heraklion Greece
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11
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Barreca D, Mandalari G, Calderaro A, Smeriglio A, Trombetta D, Felice MR, Gattuso G. Citrus Flavones: An Update on Sources, Biological Functions, and Health Promoting Properties. PLANTS 2020; 9:plants9030288. [PMID: 32110931 PMCID: PMC7154817 DOI: 10.3390/plants9030288] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/17/2020] [Accepted: 02/24/2020] [Indexed: 12/12/2022]
Abstract
Citrus spp. are among the most widespread plants cultivated worldwide and every year millions of tons of fruit, juices, or processed compounds are produced and consumed, representing one of the main sources of nutrients in human diet. Among these, the flavonoids play a key role in providing a wide range of health beneficial effects. Apigenin, diosmetin, luteolin, acacetin, chrysoeriol, and their respective glycosides, that occur in concentrations up to 60 mg/L, are the most common flavones found in Citrus fruits and juices. The unique characteristics of their basic skeleton and the nature and position of the substituents have attracted and stimulated vigorous investigations as a consequence of an enormous biological potential, that manifests itself as (among other properties) antioxidant, anti-inflammatory, antiviral, antimicrobial, and anticancer activities. This review analyzes the biochemical, pharmacological, and biological properties of Citrus flavones, emphasizing their occurrence in Citrus spp. fruits and juices, on their bioavailability, and their ability to modulate signal cascades and key metabolic enzymes both in vitro and in vivo. Electronic databases including PubMed, Scopus, Web of Science, and SciFinder were used to investigate recent published articles on Citrus spp. in terms of components and bioactivity potentials.
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Affiliation(s)
- Davide Barreca
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.M.); (A.S.); (D.T.); (M.R.F.); (G.G.)
- Correspondence: ; Tel.: +39-0906765187; Fax: +39-0906765186
| | - Giuseppina Mandalari
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.M.); (A.S.); (D.T.); (M.R.F.); (G.G.)
| | - Antonella Calderaro
- Department of Agricultural Science, Università degli Studi Mediterranea, Feo di Vito, IT-89124 Reggio Calabria, Italy;
| | - Antonella Smeriglio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.M.); (A.S.); (D.T.); (M.R.F.); (G.G.)
| | - Domenico Trombetta
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.M.); (A.S.); (D.T.); (M.R.F.); (G.G.)
| | - Maria Rosa Felice
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.M.); (A.S.); (D.T.); (M.R.F.); (G.G.)
| | - Giuseppe Gattuso
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.M.); (A.S.); (D.T.); (M.R.F.); (G.G.)
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Mao X, Wang J, Wang Q, Yang L, Li Y, Lin H, Peng Y, Zheng J. Nitidine Chloride–Induced CYP1 Enzyme Inhibition and Alteration of Estradiol Metabolism. Drug Metab Dispos 2019; 47:919-927. [DOI: 10.1124/dmd.119.086892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/24/2019] [Indexed: 01/05/2023] Open
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13
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An D, Song Z, Yi Y, Zhang Q, Liu J, Zhang Y, Zhou J, Zhao G, Cong D, Li N, Lu Y, Chen X, Zhao D. Oroxylin A, a methylated metabolite of baicalein, exhibits a stronger inhibitory effect than baicalein on the CYP1B1-mediated carcinogenic estradiol metabolite formation. Phytother Res 2019; 33:1033-1043. [PMID: 30680817 DOI: 10.1002/ptr.6297] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 01/02/2019] [Accepted: 01/03/2019] [Indexed: 12/16/2022]
Abstract
Human cytochrome P450 1B1 (CYP1B1)-mediated formation of 4-hydroxyestradiol (4-OHE2) from 17β-estradiol plays an important role in the progression of human breast cancer, while the biotransformation of 17β-estradiol to 2-hydroxyestradiol mediated by cytochrome P450 1A1 (CYP1A1) is considered as a less harmful pathway. In this study, inhibitory effects of flavonoids baicalein and oroxylin A, a metabolite of baicalein in human body, on CYP1A1 and 1B1 activities were investigated in vitro. The inhibition intensities of baicalein and oroxylin A towards CYP1B1 were greater than towards CYP1A1 with a mixed mechanism. In addition, oroxylin A showed a stronger inhibitory effect than baicalein towards the CYP1B1-mediated 17β-estradiol 4-hydroxylation, with the IC50 values of 0.0146 and 2.27 μM, respectively. Docking studies elucidated that oroxylin A had a stronger binding affinity than baicalein for CYP1B1. In MCF-7 cells, compared with baicalein-treated groups, oroxylin A with lower doses decreased and increased the formation of 4-OHE2 and 2-hydroxyestradiol, respectively, with a preferential induction of mRNA of CYP1A1 over CYP1B1. In conclusion, this study demonstrated that oroxylin A showed a stronger inhibitory effect than baicalein on CYP1B1-mediated 4-OHE2 formation in MCF-7 cells, providing crucial implications for their possibly preventive/therapeutic potential against breast cancer via inhibition of CYP1B1, particularly of oroxylin A.
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Affiliation(s)
- Dongchen An
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Zhongjin Song
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Yingyue Yi
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Qing Zhang
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Jinfeng Liu
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Yongjie Zhang
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Jing Zhou
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Guanghui Zhao
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Danhua Cong
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Ning Li
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Yang Lu
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Xijing Chen
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
| | - Di Zhao
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, China
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Pharmacokinetics, tissue distribution and excretion of luteolin and its major metabolites in rats: Metabolites predominate in blood, tissues and are mainly excreted via bile. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.05.056] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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15
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Dutour R, Poirier D. Inhibitors of cytochrome P450 (CYP) 1B1. Eur J Med Chem 2017; 135:296-306. [DOI: 10.1016/j.ejmech.2017.04.042] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/13/2017] [Accepted: 04/17/2017] [Indexed: 12/16/2022]
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Korobkova EA. Effect of Natural Polyphenols on CYP Metabolism: Implications for Diseases. Chem Res Toxicol 2015; 28:1359-90. [PMID: 26042469 DOI: 10.1021/acs.chemrestox.5b00121] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cytochromes P450 (CYPs) are a large group of hemeproteins located on mitochondrial membranes or the endoplasmic reticulum. They play a crucial role in the metabolism of endogenous and exogenous molecules. The activity of CYP is associated with a number of factors including redox potential, protein conformation, the accessibility of the active site by substrates, and others. This activity may be potentially modulated by a variety of small molecules. Extensive experimental data collected over the past decade point at the active role of natural polyphenols in modulating the catalytic activity of CYP. Polyphenols are widespread micronutrients present in human diets of plant origin and in medicinal herbs. These compounds may alter the activity of CYP either via direct interactions with the enzymes or by affecting CYP gene expression. The polyphenol-CYP interactions may significantly alter the pharmacokinetics of drugs and thus influence the effectiveness of chemical therapies used in the treatment of different types of cancers, diabetes, obesity, and cardiovascular diseases (CVD). CYPs are involved in the oxidation and activation of external carcinogenic agents, in which case the inhibition of the CYP activity is beneficial for health. CYPs also support detoxification processes. In this case, it is the upregulation of CYP genes that would be favorable for the organism. A CYP enzyme aromatase catalyzes the formation of estrone and estradiol from their precursors. CYPs also catalyze multiple reactions leading to the oxidation of estrogen. Estrogen signaling and oxidative metabolism of estrogen are associated with the development of cancer. Thus, polyphenol-mediated modulation of the CYP's activity also plays a vital role in estrogen carcinogenesis. The aim of the present review is to summarize the data collected over the last five to six years on the following topics: (1) the mechanisms of the interactions of CYP with food constituents that occur via the direct binding of polyphenols to the enzymes and (2) the mechanisms of the regulation of CYP gene expression mediated by polyphenols. The structure-activity relationship relevant to the ability of polyphenols to affect the activity of CYP is analyzed. The application of polyphenol-CYP interactions to diseases is discussed.
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Affiliation(s)
- Ekaterina A Korobkova
- John Jay College of Criminal Justice, The Department of Sciences, City University of New York, 524 W 59th Street, New York, New York 10019, United States
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Zarshenas MM, Krenn L. Phytochemical and Pharmacological Aspects of Salvia mirzayanii Rech. f. & Esfand. J Evid Based Complementary Altern Med 2014; 20:65-72. [DOI: 10.1177/2156587214553938] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Salvia mirzayanii Rech. f. & Esfand is an endemic herbaceous plant belonging to the Lamiaceae family. The plant grows in the center and south of Iran and is broadly used in folk medicine. This review focuses on phytochemical and pharmacological data of S mirzayanii. Databases such as PubMed, Scopus, Web of Science, Scientific Information Database (Iranian database involving English and Persian articles), and Google Scholar were searched for terms “ Salvia mirzayanii,” “Iranian sage,” “ Marv-e-Talkh,” and “ Moor-e-Talkh” in both Persian and English up to December 10, 2013. In line with the ethnopharmacological uses, antioxidant, immunomodulatory, anti-inflammatory, antimicrobial, and insecticidal activities of different preparations of S mirzayanii have been shown in recent studies. The antimicrobial activity against human pathogenic strains has mainly been attributed to the essential oil of S mirzayanii, which in numerous analyses has been investigated either in plants of different origin or prepared by differing extraction methods. Despite the studies on antioxidant or antimicrobial activities, profound research on the toxicity or clinical properties of the herb is missing.
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Affiliation(s)
- Mohammad M. Zarshenas
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Liselotte Krenn
- Department of Pharmacognosy, University of Vienna, Vienna, Austria
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Yamazaki S, Sakakibara H, Takemura H, Yasuda M, Shimoi K. Quercetin-3-O-glucronide inhibits noradrenaline binding to α2-adrenergic receptor, thus suppressing DNA damage induced by treatment with 4-hydroxyestradiol and noradrenaline in MCF-10A cells. J Steroid Biochem Mol Biol 2014; 143:122-9. [PMID: 24607809 DOI: 10.1016/j.jsbmb.2014.02.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 02/20/2014] [Accepted: 02/24/2014] [Indexed: 10/25/2022]
Abstract
Risk factors for breast cancer include estrogens such as 17β-estradiol (E2) and high stress levels. 4-Hydroxyestradiol (4-OHE2), a metabolite of E2 formed preferentially by cytochrome P450 1B1, is oxidized to E2-3,4-quinone, which reacts with DNA to form depurinating adducts that exert genotoxicity and carcinogenicity. Endogenous catecholamines such as adrenaline (A) and noradrenaline (NA) are released from the adrenal gland and sympathetic nervous system during exposure to stress. Here, we found that treatment with 4-OHE2 (3 μM) and NA (3 nM) significantly induced the phosphorylation of histone H2AX (γ-H2AX), one of the earliest indicators of DNA damage, and apurinic (AP) sites via the α2-adrenergic receptor (α2-AR) in human mammary epithelial MCF-10A cells. As an inverse association between a higher intake of flavonoids and breast cancer risk has previously been suggested from epidemiological studies, we investigated the effects of quercetin-3-O-glucuronide (Q3G), a circulating metabolite of quercetin in the blood, on 4-OHE2- and NA-induced γ-H2AX and AP sites. Q3G (0.1 μM) suppressed their induction and inhibited the binding of [(3)H]-NA to α2-AR. These results suggest that Q3G acts as an α2-AR antagonist and that it could be used as a chemopreventive agent for stress-promoted breast cancer.
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Affiliation(s)
- Shunsuke Yamazaki
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiroyuki Sakakibara
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai-nishi, Miyazaki 889-2192, Japan
| | - Hitomi Takemura
- Faculty of Home Economics, Aichi Gakusen University, 28 Hegoshi-cho Kawakaminari, Okazaki 444-8520, Japan
| | - Michiko Yasuda
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kayoko Shimoi
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan; Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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Nam KS, Ha BG, Shon YH. Chemopreventive activity of Cnidii Rhizoma for breast cancer. BIOTECHNOL BIOPROC E 2014. [DOI: 10.1007/s12257-014-0017-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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In Vitro Antiproliferative Effect of Arthrocnemum indicum Extracts on Caco-2 Cancer Cells through Cell Cycle Control and Related Phenol LC-TOF-MS Identification. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:529375. [PMID: 24348703 PMCID: PMC3856152 DOI: 10.1155/2013/529375] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 07/17/2013] [Accepted: 08/16/2013] [Indexed: 12/11/2022]
Abstract
This study aimed to determinate phenolic contents and antioxidant activities of the halophyte Arthrocnemum indicum shoot extracts. Moreover, the anticancer effect of this plant on human colon cancer cells and the likely underlying mechanisms were also investigated, and the major phenols were identified by LC-ESI-TOF-MS. Results showed that shoot extracts had an antiproliferative effect of about 55% as compared to the control and were characterised by substantial total polyphenol content (19 mg GAE/g DW) and high antioxidant activity (IC50 = 40 μ g/mL for DPPH test). DAPI staining revealed that these extracts decrease DNA synthesis and reduce the proliferation of Caco-2 cells which were stopped at the G2/M phase. The changes in the cell-cycle-associated proteins (cyclin B1, p38, Erk1/2, Chk1, and Chk2) correlate with the changes in cell cycle distribution. Eight phenolic compounds were also identified. In conclusion, A. indicum showed interesting antioxidant capacities associated with a significant antiproliferative effect explained by a cell cycle blocking at the G2/M phase. Taken together, these data suggest that A. indicum could be a promising candidate species as a source of anticancer molecules.
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Zhao XH, Han F, Li YL, Zhou GY, Yue HL. SEMI-PREPARATIVE SEPARATION AND PURIFICATION OF THREE FLAVONOIDS FROM PEDICULARIS LONGIFLORA VAR. TUBIFORMIS (KLOTZSCH) P. C. TSOONG BY HSCCC. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.698677] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Xiao-Hui Zhao
- a Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences , Xining , China
- b Graduate University of the Chinese Academy of Sciences , Beijing , China
| | - Fa Han
- a Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences , Xining , China
| | - Yu-Lin Li
- a Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences , Xining , China
| | - Guo-Ying Zhou
- a Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences , Xining , China
| | - Hui-Lan Yue
- a Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences , Xining , China
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Androutsopoulos VP, Papakyriakou A, Vourloumis D, Spandidos DA. Comparative CYP1A1 and CYP1B1 substrate and inhibitor profile of dietary flavonoids. Bioorg Med Chem 2011; 19:2842-9. [DOI: 10.1016/j.bmc.2011.03.042] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 03/10/2011] [Accepted: 03/18/2011] [Indexed: 11/17/2022]
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Discovery of chrysoeriol, a PI3K-AKT-mTOR pathway inhibitor with potent antitumor activity against human multiple myeloma cells in vitro. ACTA ACUST UNITED AC 2010; 30:734-40. [PMID: 21181363 DOI: 10.1007/s11596-010-0649-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Indexed: 01/08/2023]
Abstract
This study was designed to determine the impact of chrysoeriol on proliferation and cell cycle progression in the human multiple myeloma cell lines RPMI 8226 and KM3, and its related molecular mechanisms. Chryseoriol was identified by using the phosphorylated AKT-specific cytoblot high throughput assay. CCK-8 assay was employed to examine the growth inhibition rate and IC(50) (48 h) in peripheral blood mononuclear cells (PBMNCs), RPMI 8226 and KM3 cells treated with chrysoeriol at various concentrations. Cells were labeled with 5-6-carboxyfluorescein diacetate succinimidyl ester (CFSE), and the proliferation dynamics was detected by flow cytometry and analyzed with ModFit software. The cell cycles of RPMI 8226 and KM3 cells were measured by flow cytometry when the IC(50) concentration of chrysoeriol was adopted. The alterations in cell-cycle related proteins (Cyclin B1, Cyclin D1, p21) and proteins in PI3K-AKT-mTOR pathway were determined by Western blot analysis. The results showed the proliferation of multiple myeloma cells was significantly inhibited by chrysoeriol, resulting in cell cycle arrest in G(2)/M phase. Chrysoeriol could significantly reduce the expression of p-AKT (s473) and p-4eBP1 (t37/46) protein, meanwhile enhanced Cyclin B1 and p21 protein expression. Similar effects were not observed in PBMNCs from normal donors. It was concluded that chrysoeriol was a selective PI3K-AKT-mTOR pathway inhibitor. It restrained the proliferation of human multiple myeloma cells, but didn't affect proliferation of PBMNCs from normal donors. It might exhibit the cell cycle regulatory effect via the inhibition of PI3K-AKT-mTOR signal pathway.
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Selective inhibition of methoxyflavonoids on human CYP1B1 activity. Bioorg Med Chem 2010; 18:6310-5. [DOI: 10.1016/j.bmc.2010.07.020] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2010] [Revised: 07/08/2010] [Accepted: 07/09/2010] [Indexed: 11/18/2022]
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Takemura H, Nagayoshi H, Matsuda T, Sakakibara H, Morita M, Matsui A, Ohura T, Shimoi K. Inhibitory effects of chrysoeriol on DNA adduct formation with benzo[a]pyrene in MCF-7 breast cancer cells. Toxicology 2010; 274:42-8. [DOI: 10.1016/j.tox.2010.05.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 05/19/2010] [Accepted: 05/19/2010] [Indexed: 10/19/2022]
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