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Li K, Kidawara M, Chen Q, Munemasa S, Murata Y, Nakamura T, Nakamura Y. Quercetin Attenuates Acetaldehyde-Induced Cytotoxicity via the Heme Oxygenase-1-Dependent Antioxidant Mechanism in Hepatocytes. Int J Mol Sci 2024; 25:9038. [PMID: 39201725 PMCID: PMC11354654 DOI: 10.3390/ijms25169038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 08/07/2024] [Accepted: 08/19/2024] [Indexed: 09/03/2024] Open
Abstract
It is still unclear whether or how quercetin influences the toxic events induced by acetaldehyde in hepatocytes, though quercetin has been reported to mitigate alcohol-induced mouse liver injury. In this study, we evaluated the modulating effect of quercetin on the cytotoxicity induced by acetaldehyde in mouse hepatoma Hepa1c1c7 cells, the frequently used cellular hepatocyte model. The pretreatment with quercetin significantly inhibited the cytotoxicity induced by acetaldehyde. The treatment with quercetin itself had an ability to enhance the total ALDH activity, as well as the ALDH1A1 and ALDH3A1 gene expressions. The acetaldehyde treatment significantly enhanced the intracellular reactive oxygen species (ROS) level, whereas the quercetin pretreatment dose-dependently inhibited it. Accordingly, the treatment with quercetin itself significantly up-regulated the representative intracellular antioxidant-related gene expressions, including heme oxygenase-1 (HO-1), glutamate-cysteine ligase, catalytic subunit (GCLC), and cystine/glutamate exchanger (xCT), that coincided with the enhancement of the total intracellular glutathione (GSH) level. Tin protoporphyrin IX (SNPP), a typical HO-1 inhibitor, restored the quercetin-induced reduction in the intracellular ROS level, whereas buthionine sulphoximine, a representative GSH biosynthesis inhibitor, did not. SNPP also cancelled the quercetin-induced cytoprotection against acetaldehyde. These results suggest that the low-molecular-weight antioxidants produced by the HO-1 enzymatic reaction are mainly attributable to quercetin-induced cytoprotection.
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Affiliation(s)
- Kexin Li
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (K.L.); (M.K.); (S.M.); (Y.M.); (T.N.)
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China;
| | - Minori Kidawara
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (K.L.); (M.K.); (S.M.); (Y.M.); (T.N.)
| | - Qiguang Chen
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China;
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Shintaro Munemasa
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (K.L.); (M.K.); (S.M.); (Y.M.); (T.N.)
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Yoshiyuki Murata
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (K.L.); (M.K.); (S.M.); (Y.M.); (T.N.)
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Toshiyuki Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (K.L.); (M.K.); (S.M.); (Y.M.); (T.N.)
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Yoshimasa Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (K.L.); (M.K.); (S.M.); (Y.M.); (T.N.)
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
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Xie J, Xiong S, Li Y, Xia B, Li M, Zhang Z, Shi Z, Peng Q, Li C, Lin L, Liao D. Phenolic acids from medicinal and edible homologous plants: a potential anti-inflammatory agent for inflammatory diseases. Front Immunol 2024; 15:1345002. [PMID: 38975345 PMCID: PMC11224438 DOI: 10.3389/fimmu.2024.1345002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 06/10/2024] [Indexed: 07/09/2024] Open
Abstract
Inflammation has been shown to trigger a wide range of chronic diseases, particularly inflammatory diseases. As a result, the focus of research has been on anti-inflammatory drugs and foods. In recent years, the field of medicinal and edible homology (MEH) has developed rapidly in both medical and food sciences, with 95% of MEH being associated with plants. Phenolic acids are a crucial group of natural bioactive substances found in medicinal and edible homologous plants (MEHPs). Their anti-inflammatory activity is significant as they play a vital role in treating several inflammatory diseases. These compounds possess enormous potential for developing anti-inflammatory drugs and functional foods. However, their development is far from satisfactory due to their diverse structure and intricate anti-inflammatory mechanisms. In this review, we summarize the various types, structures, and distribution of MEHP phenolic acids that have been identified as of 2023. We also analyze their anti-inflammatory activity and molecular mechanisms in inflammatory diseases through NF-κB, MAPK, NLRP3, Nrf2, TLRs, and IL-17 pathways. Additionally, we investigate their impact on regulating the composition of the gut microbiota and immune responses. This analysis lays the groundwork for further exploration of the anti-inflammatory structure-activity relationship of MEHP phenolic acids, aiming to inspire structural optimization and deepen our understanding of their mechanism, and provides valuable insights for future research and development in this field.
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Affiliation(s)
- Jingchen Xie
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Suhui Xiong
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Yamei Li
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Bohou Xia
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Minjie Li
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Zhimin Zhang
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Zhe Shi
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Qiuxian Peng
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Chun Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Limei Lin
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Duanfang Liao
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
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Pawar A, Konwar C, Jha P, Kant R, Chopra M, Chaudhry U, Saluja D. Bactericidal activity of esculetin is associated with impaired cell wall synthesis by targeting glutamate racemase of Neisseria gonorrhoeae. Mol Divers 2023:10.1007/s11030-023-10745-0. [PMID: 37880544 DOI: 10.1007/s11030-023-10745-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 10/08/2023] [Indexed: 10/27/2023]
Abstract
Neisseria gonorrhoeae (NG), the causative organism of gonorrhea, has been classified by the World Health Organization as 'Priority' two organism owing to its increased resistance to antibiotics and even failure of recommended dual therapy with ceftriaxone and azithromycin. As a result, the general and reproductive health of infected individuals is severely compromised. The imminent public health catastrophe of antimicrobial-resistant gonococci cannot be understated, as t he of severe complications and sequelae of infection are not only increasing but their treatment has also become more expensive. Tenacious attempts are underway to discover novel drug targets as well as new drugs to fight against NG. Therefore, a considerable number of phytochemicals have been tested for their remedial intercession via targeting bacterial proteins. The MurI gene encodes for an enzyme called glutamate racemase (MurI) that is primarily involved in peptidoglycan (PG) biosynthesis and is specific to the bacterial kingdom and hence can be exploited as a potential drug target for the treatment of bacterial diseases. Accordingly, diverse families of phytochemicals were screened in silico for their binding affinity with N. Gonorrhoeae MurI (NG-MurI) protein. Esculetin, one of the shortlisted compounds, was evaluated for its functional, structural, and anti-bacterial activity. Treatment with esculetin resulted in growth inhibition, cell wall damage, and altered permeability as revealed by fluorescence and electron microscopy. Furthermore, esculetin inhibited the racemization activity of recombinant, purified NG-MurI protein, one of the enzymes required for peptidoglycan biosynthesis. Our results suggest that esculetin could be further explored as a lead compound for developing new drug molecules against multidrug-resistant strains.
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Affiliation(s)
- Alka Pawar
- Dr. B. R. Ambedkar Center for Biomedical Research, Delhi School of Public Health, IoE, University of Delhi, Delhi, 110007, India
| | - Chandrika Konwar
- Dr. B. R. Ambedkar Center for Biomedical Research, Delhi School of Public Health, IoE, University of Delhi, Delhi, 110007, India
| | - Prakash Jha
- Dr. B. R. Ambedkar Center for Biomedical Research, Delhi School of Public Health, IoE, University of Delhi, Delhi, 110007, India
| | - Ravi Kant
- Dr. B. R. Ambedkar Center for Biomedical Research, Delhi School of Public Health, IoE, University of Delhi, Delhi, 110007, India
| | - Madhu Chopra
- Dr. B. R. Ambedkar Center for Biomedical Research, Delhi School of Public Health, IoE, University of Delhi, Delhi, 110007, India
| | - Uma Chaudhry
- Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi, 110075, India
| | - Daman Saluja
- Dr. B. R. Ambedkar Center for Biomedical Research, Delhi School of Public Health, IoE, University of Delhi, Delhi, 110007, India.
- Delhi School of Public Health, IoE, University of Delhi, Delhi, 110007, India.
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Pinto CJG, Ávila-Gálvez MÁ, Lian Y, Moura-Alves P, Nunes Dos Santos C. Targeting the aryl hydrocarbon receptor by gut phenolic metabolites: A strategy towards gut inflammation. Redox Biol 2023; 61:102622. [PMID: 36812782 PMCID: PMC9958510 DOI: 10.1016/j.redox.2023.102622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
The Aryl Hydrocarbon Receptor (AHR) is a ligand-dependent transcription factor able to control complex transcriptional processes in several cell types, which has been correlated with various diseases, including inflammatory bowel diseases (IBD). Numerous studies have described different compounds as ligands of this receptor, like xenobiotics, natural compounds, and several host-derived metabolites. Dietary (poly)phenols have been studied regarding their pleiotropic activities (e.g., neuroprotective and anti-inflammatory), but their AHR modulatory capabilities have also been considered. However, dietary (poly)phenols are submitted to extensive metabolism in the gut (e.g., gut microbiota). Thus, the resulting gut phenolic metabolites could be key players modulating AHR since they are the ones that reach the cells and may exert effects on the AHR throughout the gut and other organs. This review aims at a comprehensive search for the most abundant gut phenolic metabolites detected and quantified in humans to understand how many have been described as AHR modulators and what could be their impact on inflammatory gut processes. Even though several phenolic compounds have been studied regarding their anti-inflammatory capacities, only 1 gut phenolic metabolite, described as AHR modulator, has been evaluated on intestinal inflammatory models. Searching for AHR ligands could be a novel strategy against IBD.
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Affiliation(s)
- Catarina J G Pinto
- iNOVA4Health, NOVA Medical School
- Faculdade de Ciências Médicas, NMS
- FCM, Universidade Nova de Lisboa, Lisboa, Portugal; IBMC, Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal; I3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
| | - María Ángeles Ávila-Gálvez
- iNOVA4Health, NOVA Medical School
- Faculdade de Ciências Médicas, NMS
- FCM, Universidade Nova de Lisboa, Lisboa, Portugal; iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, Oeiras, Portugal
| | - Yilong Lian
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, OX3 7DQ, Oxford, United Kingdom
| | - Pedro Moura-Alves
- IBMC, Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal; I3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal; Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, OX3 7DQ, Oxford, United Kingdom.
| | - Cláudia Nunes Dos Santos
- iNOVA4Health, NOVA Medical School
- Faculdade de Ciências Médicas, NMS
- FCM, Universidade Nova de Lisboa, Lisboa, Portugal; iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, Oeiras, Portugal.
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LC-ESI-QTOF-MS/MS profiling of phenolic compounds in Australian native plums and their potential antioxidant activities. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Li K, Wu H, Kidawara M, Lin Y, Satoh A, Zhang G, Munemasa S, Murata Y, Nakamura T, Nakamura Y. The microbiota catabolites of quercetin glycosides concertedly enhance the resistance against acetaldehyde-induced oxidative stress. Free Radic Res 2022; 56:607-616. [PMID: 36576903 DOI: 10.1080/10715762.2022.2159820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
3,4-Dihydroxyphenylacetic acid (DOPAC) and 3-hydroxyphenylacetic acid (OPAC) are the predominant catabolites of quercetin glycosides, such as quercetin 4'-O-β-glucoside from the onion, produced by intestinal microbiota. Although each catabolite has been reported to protect the cells from acetaldehyde-induced cytotoxicity, the effect of their combination remains to be clarified. The purpose of this study was to determine whether the combination of DOPAC and OPAC enhances the resistance against the acetaldehyde-induced oxidative stress in the cultured hepatocytes. The pretreatment of the combination of DOPAC (5 μM) and OPAC (5 μM) showed significant protection against the acetaldehyde- and hydrogen peroxide-induced cytotoxicity, even though each compound at the same concentration did not. This combination also significantly inhibited the intracellular dichlorofluorescin diacetate-detectable reactive oxygen species (ROS) level, whereas the solo treatment did slightly, suggesting that reducing mechanisms of ROS or compounds that enhance ROS production are involved in the cytoprotective effect. The combinatory treatment significantly enhanced the gene expression of not only the aldehyde dehydrogenases (ALDHs), but also glutamate-cysteine ligase, catalytic subunit, the first rate-limiting enzyme of glutathione (GSH) synthesis. Accordingly, both the intracellular GSH level and the total ALDH activity were enhanced by DOPAC plus OPAC. Involvement of GSH in the cytoprotection as well as ALDH up-regulation by the combination was confirmed by the experiments using a GSH biosynthesis inhibitor, buthionine sulfoximine. Taken together, the present results suggested that the quercetin microbiota catabolites concertedly protect the cells from acetaldehyde through a pre-enhanced resistance against oxidative stress by the GSH-dependent up-regulation of ALDHs.
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Affiliation(s)
- Kexin Li
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.,School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Hongyan Wu
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.,School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Minori Kidawara
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yun Lin
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.,School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Ayano Satoh
- Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, Japan
| | - Gongliang Zhang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Shintaro Munemasa
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yoshiyuki Murata
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Toshiyuki Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yoshimasa Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
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Liu Y, Myojin T, Li K, Kurita A, Seto M, Motoyama A, Liu X, Satoh A, Munemasa S, Murata Y, Nakamura T, Nakamura Y. A Major Intestinal Catabolite of Quercetin Glycosides, 3-Hydroxyphenylacetic Acid, Protects the Hepatocytes from the Acetaldehyde-Induced Cytotoxicity through the Enhancement of the Total Aldehyde Dehydrogenase Activity. Int J Mol Sci 2022; 23:ijms23031762. [PMID: 35163684 PMCID: PMC8836260 DOI: 10.3390/ijms23031762] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 12/20/2022] Open
Abstract
Aldehyde dehydrogenases (ALDHs) are the major enzyme superfamily for the aldehyde metabolism. Since the ALDH polymorphism leads to the accumulation of acetaldehyde, we considered that the enhancement of the liver ALDH activity by certain food ingredients could help prevent alcohol-induced chronic diseases. Here, we evaluated the modulating effects of 3-hydroxyphenylacetic acid (OPAC), the major metabolite of quercetin glycosides, on the ALDH activity and acetaldehyde-induced cytotoxicity in the cultured cell models. OPAC significantly enhanced the total ALDH activity not only in mouse hepatoma Hepa1c1c7 cells, but also in human hepatoma HepG2 cells. OPAC significantly increased not only the nuclear level of aryl hydrocarbon receptor (AhR), but also the AhR-dependent reporter gene expression, though not the nuclear factor erythroid-2-related factor 2 (Nrf2)-dependent one. The pretreatment of OPAC at the concentration required for the ALDH upregulation completely inhibited the acetaldehyde-induced cytotoxicity. Silencing AhR impaired the resistant effect of OPAC against acetaldehyde. These results strongly suggested that OPAC protects the cells from the acetaldehyde-induced cytotoxicity, mainly through the AhR-dependent and Nrf2-independent enhancement of the total ALDH activity. Our findings suggest that OPAC has a protective potential in hepatocyte models and could offer a new preventive possibility of quercetin glycosides for targeting alcohol-induced chronic diseases.
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Affiliation(s)
- Yujia Liu
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China;
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (K.L.); (X.L.)
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Takumi Myojin
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Kexin Li
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (K.L.); (X.L.)
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Ayuki Kurita
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Masayuki Seto
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Ayano Motoyama
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Xiaoyang Liu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (K.L.); (X.L.)
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Ayano Satoh
- Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan;
| | - Shintaro Munemasa
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Yoshiyuki Murata
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Toshiyuki Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
| | - Yoshimasa Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan; (T.M.); (A.K.); (M.S.); (A.M.); (S.M.); (Y.M.); (T.N.)
- Correspondence: ; Tel.: +81-86-251-8300; Fax: +81-86-251-8388
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Kongdang P, Dukaew N, Pruksakorn D, Koonrungsesomboon N. Biochemistry of Amaranthus polyphenols and their potential benefits on gut ecosystem: A comprehensive review of the literature. JOURNAL OF ETHNOPHARMACOLOGY 2021; 281:114547. [PMID: 34425138 DOI: 10.1016/j.jep.2021.114547] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/15/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The genus Amaranthus is phytonutrients-rich plant distributed worldwide and has been recognized as having medicinal value in traditional use against several diseases and conditions. There are a large amount of research data on the polyphenol profiles of Amaranthus plants and their links with potential benefits against gastrointestinal disorders. AIM OF THE REVIEW This review article aims to provide a comprehensive review of Amaranthus phenolic compounds and their microbial metabolites, as well as the biological and/or pharmacological effects of those compounds/metabolites. METHODOLOGY The relevant information about the genus Amaranthus was collected from various sources and databases, including Google Scholar, Google Books, PubMed, Web of Science, Scopus, Science Direct, and other internet sources. The World Flora Online (2021) database was used to verify the scientific names of the plants. RESULTS Comprehensive review of identified compounds in Amaranthus plants revealed the presence of phenolic acids, flavonoids, and coumarins in each part of the plants. The biotransformation by gut microbiota enzymes prominently produces diverse bioactive metabolites that are potentially active than their precursors. Lines of the evidence support the beneficial roles of Amaranthus extracts in several gastrointestinal diseases, particularly with the polar extracts of several plant parts. Dietary fibers in Amaranthus plants also coordinate the alteration of gut microbiota-related metabolisms and may be beneficial to certain gastrointestinal disorders in particular, such as constipation. CONCLUSIONS Amaranthus plants are rich in polyphenols and dietary fibers. Several microbial metabolites are biologically active, so alteration of gut microbiota is largely linked to the metabolic feature of the plants. Based on the evidence available to date, several Amaranthus plants containing a combination of phytonutrients, particularly polyphenols and dietary fibers, may be a promising candidate that is of interest to be further developed for use in the treatment of certain gastrointestinal conditions/disorders.
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Affiliation(s)
- Patiwat Kongdang
- Musculoskeletal Science and Translational Research (MSTR) Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
| | - Nahathai Dukaew
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Dumnoensun Pruksakorn
- Musculoskeletal Science and Translational Research (MSTR) Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand; Center of Multidisciplinary Technology for Advanced Medicine (CMUTEAM), Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand; Biomedical Engineering Institute, Chiang Mai University, Chiang Mai, Thailand.
| | - Nut Koonrungsesomboon
- Musculoskeletal Science and Translational Research (MSTR) Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand; Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Non-cytochrome P450 enzymes involved in the oxidative metabolism of xenobiotics: Focus on the regulation of gene expression and enzyme activity. Pharmacol Ther 2021; 233:108020. [PMID: 34637840 DOI: 10.1016/j.pharmthera.2021.108020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/25/2021] [Accepted: 10/04/2021] [Indexed: 12/16/2022]
Abstract
Oxidative metabolism is one of the major biotransformation reactions that regulates the exposure of xenobiotics and their metabolites in the circulatory system and local tissues and organs, and influences their efficacy and toxicity. Although cytochrome (CY)P450s play critical roles in the oxidative reaction, extensive CYP450-independent oxidative metabolism also occurs in some xenobiotics, such as aldehyde oxidase, xanthine oxidoreductase, flavin-containing monooxygenase, monoamine oxidase, alcohol dehydrogenase, or aldehyde dehydrogenase-dependent oxidative metabolism. Drugs form a large portion of xenobiotics and are the primary target of this review. The common reaction mechanisms and roles of non-CYP450 enzymes in metabolism, factors affecting the expression and activity of non-CYP450 enzymes in terms of inhibition, induction, regulation, and species differences in pharmaceutical research and development have been summarized. These non-CYP450 enzymes are detoxifying enzymes, although sometimes they mediate severe toxicity. Synthetic or natural chemicals serve as inhibitors for these non-CYP450 enzymes. However, pharmacokinetic-based drug interactions through these inhibitors have rarely been reported in vivo. Although multiple mechanisms participate in the basal expression and regulation of non-CYP450 enzymes, only a limited number of inducers upregulate their expression. Therefore, these enzymes are considered non-inducible or less inducible. Overall, this review focuses on the potential xenobiotic factors that contribute to variations in gene expression levels and the activities of non-CYP450 enzymes.
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Fuloria S, Subramaniyan V, Karupiah S, Kumari U, Sathasivam K, Meenakshi DU, Wu YS, Guad RM, Udupa K, Fuloria NK. A Comprehensive Review on Source, Types, Effects, Nanotechnology, Detection, and Therapeutic Management of Reactive Carbonyl Species Associated with Various Chronic Diseases. Antioxidants (Basel) 2020; 9:E1075. [PMID: 33147856 PMCID: PMC7692604 DOI: 10.3390/antiox9111075] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 12/12/2022] Open
Abstract
Continuous oxidation of carbohydrates, lipids, and amino acids generate extremely reactive carbonyl species (RCS). Human body comprises some important RCS namely hexanal, acrolein, 4-hydroxy-2-nonenal, methylglyoxal, malondialdehyde, isolevuglandins, and 4-oxo-2- nonenal etc. These RCS damage important cellular components including proteins, nucleic acids, and lipids, which manifests cytotoxicity, mutagenicity, multitude of adducts and crosslinks that are connected to ageing and various chronic diseases like inflammatory disease, atherosclerosis, cerebral ischemia, diabetes, cancer, neurodegenerative diseases and cardiovascular disease. The constant prevalence of RCS in living cells suggests their importance in signal transduction and gene expression. Extensive knowledge of RCS properties, metabolism and relation with metabolic diseases would assist in development of effective approach to prevent numerous chronic diseases. Treatment approaches for RCS associated diseases involve endogenous RCS metabolizers, carbonyl metabolizing enzyme inducers, and RCS scavengers. Limited bioavailability and bio efficacy of RCS sequesters suggest importance of nanoparticles and nanocarriers. Identification of RCS and screening of compounds ability to sequester RCS employ several bioassays and analytical techniques. Present review describes in-depth study of RCS sources, types, properties, identification techniques, therapeutic approaches, nanocarriers, and their role in various diseases. This study will give an idea for therapeutic development to combat the RCS associated chronic diseases.
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Affiliation(s)
- Shivkanya Fuloria
- Faculty of Pharmacy, AIMST University, Kedah, Bedong 08100, Malaysia;
| | - Vetriselvan Subramaniyan
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Kuala Lumpur 42610, Malaysia; (V.S.); (Y.S.W.)
| | - Sundram Karupiah
- Faculty of Pharmacy, AIMST University, Kedah, Bedong 08100, Malaysia;
| | - Usha Kumari
- Faculty of Medicine, AIMST University, Kedah, Bedong 08100, Malaysia;
| | | | | | - Yuan Seng Wu
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Kuala Lumpur 42610, Malaysia; (V.S.); (Y.S.W.)
| | - Rhanye Mac Guad
- Faculty of Medicine and Health Science, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia;
| | - Kaviraja Udupa
- Department of Neurophysiology, NIMHANS, Bangalore 560029, India;
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11
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Koudoufio M, Desjardins Y, Feldman F, Spahis S, Delvin E, Levy E. Insight into Polyphenol and Gut Microbiota Crosstalk: Are Their Metabolites the Key to Understand Protective Effects against Metabolic Disorders? Antioxidants (Basel) 2020; 9:E982. [PMID: 33066106 PMCID: PMC7601951 DOI: 10.3390/antiox9100982] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 09/30/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022] Open
Abstract
Lifestyle factors, especially diet and nutrition, are currently regarded as essential avenues to decrease modern-day cardiometabolic disorders (CMD), including obesity, metabolic syndrome, type 2 diabetes, and atherosclerosis. Many groups around the world attribute these trends, at least partially, to bioactive plant polyphenols given their anti-oxidant and anti-inflammatory actions. In fact, polyphenols can prevent or reverse the progression of disease processes through many distinct mechanisms. In particular, the crosstalk between polyphenols and gut microbiota, recently unveiled thanks to DNA-based tools and next generation sequencing, unravelled the central regulatory role of dietary polyphenols and their intestinal micro-ecology metabolites on the host energy metabolism and related illnesses. The objectives of this review are to: (1) provide an understanding of classification, structure, and bioavailability of dietary polyphenols; (2) underline their metabolism by gut microbiota; (3) highlight their prebiotic effects on microflora; (4) discuss the multifaceted roles of their metabolites in CMD while shedding light on the mechanisms of action; and (5) underscore their ability to initiate host epigenetic regulation. In sum, the review clearly documents whether dietary polyphenols and micro-ecology favorably interact to promote multiple physiological functions on human organism.
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Affiliation(s)
- Mireille Koudoufio
- Research Centre, Sainte-Justine University Health Center, Montreal, QC H3T 1C5, Canada; (M.K.); (F.F.); (S.S.); (E.D.)
- Department of Nutrition, Université de Montréal, Montreal, QC H3T 1J4, Canada
- Institute of Nutrition and Functional Foods, Laval University, Quebec City, QC G1V 0A6, Canada;
| | - Yves Desjardins
- Institute of Nutrition and Functional Foods, Laval University, Quebec City, QC G1V 0A6, Canada;
| | - Francis Feldman
- Research Centre, Sainte-Justine University Health Center, Montreal, QC H3T 1C5, Canada; (M.K.); (F.F.); (S.S.); (E.D.)
- Department of Nutrition, Université de Montréal, Montreal, QC H3T 1J4, Canada
- Institute of Nutrition and Functional Foods, Laval University, Quebec City, QC G1V 0A6, Canada;
| | - Schohraya Spahis
- Research Centre, Sainte-Justine University Health Center, Montreal, QC H3T 1C5, Canada; (M.K.); (F.F.); (S.S.); (E.D.)
- Department of Nutrition, Université de Montréal, Montreal, QC H3T 1J4, Canada
- Institute of Nutrition and Functional Foods, Laval University, Quebec City, QC G1V 0A6, Canada;
| | - Edgard Delvin
- Research Centre, Sainte-Justine University Health Center, Montreal, QC H3T 1C5, Canada; (M.K.); (F.F.); (S.S.); (E.D.)
- Department of Biochemistry, Université de Montréal, Montreal, QC H3T 1J4, Canada
| | - Emile Levy
- Research Centre, Sainte-Justine University Health Center, Montreal, QC H3T 1C5, Canada; (M.K.); (F.F.); (S.S.); (E.D.)
- Department of Nutrition, Université de Montréal, Montreal, QC H3T 1J4, Canada
- Institute of Nutrition and Functional Foods, Laval University, Quebec City, QC G1V 0A6, Canada;
- Department of Pediatrics, Université de Montréal, Montreal, QC H3T 1J4, Canada
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12
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Catalán M, Ferreira J, Carrasco-Pozo C. The Microbiota-Derived Metabolite of Quercetin, 3,4-Dihydroxyphenylacetic Acid Prevents Malignant Transformation and Mitochondrial Dysfunction Induced by Hemin in Colon Cancer and Normal Colon Epithelia Cell Lines. Molecules 2020; 25:E4138. [PMID: 32927689 PMCID: PMC7571211 DOI: 10.3390/molecules25184138] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/26/2020] [Accepted: 09/04/2020] [Indexed: 12/30/2022] Open
Abstract
Meat diet plays a pivotal role in colorectal cancer (CRC). Hemin, a metabolite of myoglobin, produced after meat intake, has been involved in CRC initiation. The compound, 3,4-dihydroxyphenylacetic acid (3,4HPAA) is a scarcely studied microbiota-derived metabolite of the flavonoid quercetin (QUE), which exert antioxidant properties. The aim of this study was to determine the protective effect of 3,4HPAA against malignant transformation (increased cell proliferation, decreased apoptosis, DNA oxidative damage and augmented reactive oxidative species (ROS) levels) and mitochondrial dysfunction induced by hemin in normal colon epithelial cells and colon cancer cells. The effect of 3,4HPAA was assessed in comparison to its precursor, QUE and to a known CRC protective agent, sulforaphane (SFN). The results showed that both, tumor and normal cells, exposed to hemin, presented increased cell proliferation, decreased caspase 3 activity and cytochrome c release, as well as augmented production of intracellular and mitochondrial ROS. In addition, hemin decreased the mitochondrial membrane potential (MMP) and the activity of complexes I and II of the electron transport chain. These effects of hemin were prevented by the action of 3,4HPAA. The metabolite showed to be more active than QUE and slightly less active than SFN. In conclusion, 3,4HPAA administration could represent a promising strategy for preventing malignant transformation and mitochondrial dysfunction in colon epithelia induced by hemin.
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Affiliation(s)
- Mabel Catalán
- Programa de Farmacología Moleculary Clínica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 7500000, Chile; (M.C.); (J.F.)
| | - Jorge Ferreira
- Programa de Farmacología Moleculary Clínica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 7500000, Chile; (M.C.); (J.F.)
| | - Catalina Carrasco-Pozo
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan 4111, Queensland, Australia
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Fernández-Palanca P, Fondevila F, Méndez-Blanco C, Tuñón MJ, González-Gallego J, Mauriz JL. Antitumor Effects of Quercetin in Hepatocarcinoma In Vitro and In Vivo Models: A Systematic Review. Nutrients 2019; 11:nu11122875. [PMID: 31775362 PMCID: PMC6950472 DOI: 10.3390/nu11122875] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/14/2019] [Accepted: 11/21/2019] [Indexed: 12/13/2022] Open
Abstract
Quercetin is a flavonoid present in fruits, vegetables and plants with antioxidant, anti-inflammatory and anticancer properties. Its beneficial activities have been demonstrated in different human pathologies, including hepatoprotective effects against liver disorders. High mortality and late diagnosis of the primary liver tumor hepatocarcinoma (HCC) makes this cancer an interesting target for the study of quercetin effects. Our aim was to systematically review antitumor activities of quercetin in HCC preclinical studies employing single, encapsulated, combined or derived quercetin forms. Literature search was conducted in PubMed, Scopus and Web of Science (WOS), and 39 studies were finally included. We found that 17 articles evaluated quercetin effects alone, six used encapsulated strategy, 10 combined this flavonoid, two decided to co-encapsulate it and only four studied effects of quercetin derivatives, highlighting that only nine included in vivo models. Results evidence the quercetin antiproliferative and proapoptotic properties against HCC either alone and with the mentioned strategies; nevertheless, few investigations assessed specific activities on different processes related with cancer progression. Overall, further studies including animal models are needed to deeper investigate the precise mechanisms of action of quercetin as antitumor agent, as well as the potential of novel strategies aimed to improve quercetin effects in HCC.
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Affiliation(s)
- Paula Fernández-Palanca
- Institute of Biomedicine, University of León, 24071 León, Spain; (P.F.-P.); (F.F.); (C.M.-B.); (M.J.T.); (J.G.-G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
| | - Flavia Fondevila
- Institute of Biomedicine, University of León, 24071 León, Spain; (P.F.-P.); (F.F.); (C.M.-B.); (M.J.T.); (J.G.-G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
| | - Carolina Méndez-Blanco
- Institute of Biomedicine, University of León, 24071 León, Spain; (P.F.-P.); (F.F.); (C.M.-B.); (M.J.T.); (J.G.-G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
| | - María J. Tuñón
- Institute of Biomedicine, University of León, 24071 León, Spain; (P.F.-P.); (F.F.); (C.M.-B.); (M.J.T.); (J.G.-G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
| | - Javier González-Gallego
- Institute of Biomedicine, University of León, 24071 León, Spain; (P.F.-P.); (F.F.); (C.M.-B.); (M.J.T.); (J.G.-G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
| | - José L. Mauriz
- Institute of Biomedicine, University of León, 24071 León, Spain; (P.F.-P.); (F.F.); (C.M.-B.); (M.J.T.); (J.G.-G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
- Correspondence:
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14
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Márquez Campos E, Stehle P, Simon MC. Microbial Metabolites of Flavan-3-Ols and Their Biological Activity. Nutrients 2019; 11:nu11102260. [PMID: 31546992 PMCID: PMC6836129 DOI: 10.3390/nu11102260] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/13/2019] [Accepted: 09/17/2019] [Indexed: 12/19/2022] Open
Abstract
Flavan-3-ols are the main contributors to polyphenol intake. Many varying beneficial health effects in humans have been attributed to them, including the prevention of cardiovascular disease and cancer. Nevertheless, the mechanisms by which these flavonoids could exert beneficial functions are not entirely known. Several in vitro studies and in vivo animal models have tried to elucidate the role of the specific colonic metabolites on the health properties that are attributed to the parent compounds since a larger number of ingested flavan-3-ols reach the colon and undergo there microbial metabolism. Many new studies about this topic have been performed over the last few years and, to the best of our knowledge, no scientific literature review regarding the bioactivity of all identified microbial metabolites of flavan-3-ols has been recently published. Therefore, the aim of this review is to present the current status of knowledge on the potential health benefits of flavan-3-ol microbial metabolites in humans while using the latest evidence on their biological activity.
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Affiliation(s)
- Estefanía Márquez Campos
- Department of Nutrition and Food Sciences, Nutrition and Microbiota, University of Bonn, 53115 Bonn, Germany.
- Department of Nutrition and Food Sciences, Nutritional Physiology, University of Bonn, 53115 Bonn, Germany.
| | - Peter Stehle
- Department of Nutrition and Food Sciences, Nutritional Physiology, University of Bonn, 53115 Bonn, Germany.
| | - Marie-Christine Simon
- Department of Nutrition and Food Sciences, Nutrition and Microbiota, University of Bonn, 53115 Bonn, Germany.
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15
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Xu W, Saiki S, Myojin T, Liu Y, Zhu B, Murata Y, Ashida H, Tsunenaga M, Nakamura Y. Lycii fructus extract ameliorates hydrogen peroxide-induced cytotoxicity through indirect antioxidant action. Biosci Biotechnol Biochem 2018; 82:1812-1820. [DOI: 10.1080/09168451.2018.1487274] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
ABSTRACT
Lycii Fructus is the dried ripe fruits of Lycium chinense and L. barbarum, which has long been used as a traditional food material in East Asia. The purpose of this study was to investigate the role of the indirect antioxidative action in the Lycii fructus extract (LFE)-induced cytoprotective effect in vitro. LFE significantly enhanced the expression of the drug-metabolizing enzyme genes and intracellular glutathione level in mouse hepatoma Hepa1c1c7 cells. LFE stimulated the nuclear translocation of aryl hydrocarbon receptor as well as nuclear factor (erythroid-derived 2)-like 2. The pretreatment of LFE for 24 h, but not for 30 min, completely inhibited the cytotoxic effect of hydrogen peroxide. Furthermore, chlorogenic acid, one of the main constituents of LFE, showed cytoprotection against hydrogen peroxide with the enhanced phase 2 enzyme gene expression. These results suggested that LFE exhibits a cytoprotective effect, possibly through the enhancement of the antioxidant gene expression.
abbreviations: LFE: Lycii Fructus extract; GSH: glutathione; NQO1: NAD(P)H:quinone oxidoreductase 1; HO-1: heme oxygenase-1; GCLC: glutamate-cysteine ligase, catalytic subunit; xCT: a component of cysteine/glutamate antiporter (cystine/glutamate exchanger); CYP1A1: cytochrome P450 1A1; GSH: glutathione; AhR: aryl hydrocarbon receptor; Nrf2: nuclear factor (erythroid-derived 2)-like 2; CGA: chlorogenic acid; RT-PCR: reverse transcription-polymerase chain reaction; DTT: dithiothreitol; PMSF: phenylmethylsulfonyl fluoride; ARE: antioxidant response element; XRE: xenobiotic responsive element.
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Affiliation(s)
- Wensi Xu
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Shunya Saiki
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Takumi Myojin
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yujia Liu
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Beiwei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Yoshiyuki Murata
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Hitoshi Ashida
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | | | - Yoshimasa Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
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16
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Murota K, Nakamura Y, Uehara M. Flavonoid metabolism: the interaction of metabolites and gut microbiota. Biosci Biotechnol Biochem 2018; 82:600-610. [DOI: 10.1080/09168451.2018.1444467] [Citation(s) in RCA: 161] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Abstract
Several dietary flavonoids exhibit anti-oxidative, anti-inflammatory, and anti-osteoporotic activities relevant to prevention of chronic diseases, including lifestyle-related diseases. Dietary flavonoids (glycoside forms) are enzymatically hydrolyzed and absorbed in the intestine, and are conjugated to their glucuronide/sulfate forms by phase II enzymes in epithelial cells and the liver. The intestinal microbiota plays an important role in the metabolism of flavonoids found in foods. Some specific products of bacterial transformation, such as ring-fission products and reduced metabolites, exhibit enhanced properties. Studies on the metabolism of flavonoids by the intestinal microbiota are crucial for understanding the role of these compounds and their impact on our health. This review focused on the metabolic pathways, bioavailability, and physiological role of flavonoids, especially metabolites of quercetin and isoflavone produced by the intestinal microbiota.
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Affiliation(s)
- Kaeko Murota
- Faculty of Science and Technology, Department of Life Science, Kindai University, Osaka, Japan
| | - Yoshimasa Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Mariko Uehara
- Faculty of Applied Bioscience, Department of Nutritional Science and Food Safety, Tokyo University of Agriculture, Tokyo, Japan
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17
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Currò D. The role of gut microbiota in the modulation of drug action: a focus on some clinically significant issues. Expert Rev Clin Pharmacol 2017; 11:171-183. [PMID: 29210311 DOI: 10.1080/17512433.2018.1414598] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION A healthy gut microbiota is necessary for the normal operation of several body functions, including gastrointestinal sensitivity and motility, lipid and glucid metabolism, immune surveillance, and host behavior. In addition, intestinal bacteria contribute to determining the pharmacological properties of several drugs by producing different drug metabolizing enzymes. Areas covered: Four enzymatic processes are discussed: prodrug activation; drug inactivation; drug deconjugation; and hydrolysis of natural glycosides with further metabolism of released aglycones. For each of these processes, a literature search has been undertaken on certain paradigmatic examples that have significant clinical implications: aminosalicylates and anthranoid laxatives; digoxin; irinotecan and non-steroidal anti-inflammatory drugs (NSAIDs); rutin, diosmin, and baicalin. Expert commentary: The modulation of certain reactions catalyzed by gut bacterial enzymes may offer new opportunities to improve the clinical efficacy of drugs such as aminosalicylates, and natural glycosides by increasing their metabolic transformation, and of digoxin by reducing its inactivation, or to decrease the lower intestinal toxicity of irinotecan, and NSAIDs by inhibiting the hydrolytic cleavage of their conjugates. Randomized clinical trials are awaited to clarify whether new intervention strategies may modulate these processes and provide clinical benefits such as improved therapeutic outcomes and drug safety profiles.
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Affiliation(s)
- Diego Currò
- a Istituto di Farmacologia , Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli , Roma , Italia
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