1
|
Muema FW, Liu Y, Zhang Y, Chen G, Guo M. Flavonoids from Selaginella doederleinii Hieron and Their Antioxidant and Antiproliferative Activities. Antioxidants (Basel) 2022; 11:antiox11061189. [PMID: 35740086 PMCID: PMC9229023 DOI: 10.3390/antiox11061189] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/02/2022] [Accepted: 06/09/2022] [Indexed: 01/13/2023] Open
Abstract
Selaginella doederleinii Hieron. (S. doederleinii) is a traditional herb that is widely used in China to treat several ailments, but mainly cancer. Studies have been carried out to determine the phytochemicals ascribed to its pharmacological activity. However, both phytochemical and pharmacological profiles have not been fully explored as few compounds have been reported. This study evaluated the flavonoid content of the ethanol extract and its four fractions (petroleum ether, dichloromethane, ethyl acetate, and n-butanol) together with their antioxidant activity (DPPH and FRAP assays). Further, the antiproliferative activity was evaluated. Two new secondary metabolites (1 and 3) were isolated from S. doederleinii, which comprised of an apigenin skeleton with a phenyl attached at C-8 of ring A and an acetyl group. Additionally, other known metabolites 2 and 4–16 were isolated, whereby compounds 2, 4, 5, 8, 12, 15, and 16 were reported for the first time in this species. These compounds were evaluated for their antioxidative potentials by both DPPH and FRAP assays, and for their antiproliferative activities by the MTT assay on three human cancer cell lines: colon cancer (HT-29), cervical cancer (HeLa), and lung cancer (A549). Compound 7 exhibited the best activity on the three cancer cell lines (HT-29, HeLa, A549) by inhibiting the rate of growth of the cancer cells in a dose-dependent manner with IC50 values of 27.97, 35.47, and 20.71 µM, respectively. The structure–activity relationship of the pure compounds was highlighted in this study. Hence, the study enriched both the phytochemical and pharmacological profiles of S. doederleinii.
Collapse
Affiliation(s)
- Felix Wambua Muema
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (F.W.M.); (Y.L.); (Y.Z.); (G.C.)
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
- Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ye Liu
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (F.W.M.); (Y.L.); (Y.Z.); (G.C.)
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
- Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yongli Zhang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (F.W.M.); (Y.L.); (Y.Z.); (G.C.)
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
- Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai 201203, China
| | - Guilin Chen
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (F.W.M.); (Y.L.); (Y.Z.); (G.C.)
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
- Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai 201203, China
| | - Mingquan Guo
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (F.W.M.); (Y.L.); (Y.Z.); (G.C.)
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
- Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence: ; Tel.: +86-027-8770-0850
| |
Collapse
|
2
|
Banik K, Khatoon E, Harsha C, Rana V, Parama D, Thakur KK, Bishayee A, Kunnumakkara AB. Wogonin and its analogs for the prevention and treatment of cancer: A systematic review. Phytother Res 2022; 36:1854-1883. [DOI: 10.1002/ptr.7386] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 12/18/2021] [Accepted: 01/08/2022] [Indexed: 12/24/2022]
Affiliation(s)
- Kishore Banik
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering Indian Institute of Technology‐Guwahati Guwahati India
- DBT‐AIST International Center for Translational and Environmental Research Indian Institute of Technology‐Guwahati Guwahati India
| | - Elina Khatoon
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering Indian Institute of Technology‐Guwahati Guwahati India
- DBT‐AIST International Center for Translational and Environmental Research Indian Institute of Technology‐Guwahati Guwahati India
| | - Choudhary Harsha
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering Indian Institute of Technology‐Guwahati Guwahati India
- DBT‐AIST International Center for Translational and Environmental Research Indian Institute of Technology‐Guwahati Guwahati India
| | - Varsha Rana
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering Indian Institute of Technology‐Guwahati Guwahati India
- DBT‐AIST International Center for Translational and Environmental Research Indian Institute of Technology‐Guwahati Guwahati India
| | - Dey Parama
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering Indian Institute of Technology‐Guwahati Guwahati India
- DBT‐AIST International Center for Translational and Environmental Research Indian Institute of Technology‐Guwahati Guwahati India
| | - Krishan Kumar Thakur
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering Indian Institute of Technology‐Guwahati Guwahati India
- DBT‐AIST International Center for Translational and Environmental Research Indian Institute of Technology‐Guwahati Guwahati India
| | - Anupam Bishayee
- College of Osteopathic medicine Lake Erie College of Osteopathic Medicine Bradenton Florida USA
| | - Ajaikumar B. Kunnumakkara
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering Indian Institute of Technology‐Guwahati Guwahati India
- DBT‐AIST International Center for Translational and Environmental Research Indian Institute of Technology‐Guwahati Guwahati India
| |
Collapse
|
3
|
Natural green deep eutectic solvents-based eco-friendly and efficient extraction of flavonoids from Selaginella moellendorffii: Process optimization, composition identification and biological activity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120203] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
4
|
De Grano RVR, Vashchenko EV, Nisar M, Sung HHY, Vashchenko VV, Williams ID. Crystal structures of the flavonoid Oroxylin A and the regioisomers Negletein and Wogonin. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2020; 76:490-499. [PMID: 32367831 DOI: 10.1107/s2053229620005550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/20/2020] [Indexed: 02/06/2023]
Abstract
The flavonoid Oroxylin A (6-methoxychrysin or 5,7-dihydroxy-6-methoxy-2-phenyl-4H-chromen-4-one, C16H12O5) and its regioisomers are of increasing interest for a variety of bioactive functions and their pharmaceutical formulation is of importance. Previous difficulties in the separation and misidentification of Oroxylin A from its regioisomers Wogonin (8-methoxychrysin or 5,7-dihydroxy-8-methoxy-2-phenyl-4H-chromen-4-one) and Negletein (5,6-dihydroxy-7-methoxyflavone or 5,6-dihydroxy-7-methoxy-2-phenyl-4H-chromen-4-one) render its full structural and powder X-ray characterization highly desirable. The low-temperature (100 K) crystal structures of Oroxylin A, Negletein and Wogonin sesquihydrate are reported for the first time. Wogonin crystallizes in two related but distinct hydrated forms. These have very similar powder diffractograms, indicating that such issues need to be addressed for its pharmaceutical formulation.
Collapse
Affiliation(s)
- Ruel Valerio Robles De Grano
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, People's Republic of China
| | - Elena V Vashchenko
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, People's Republic of China
| | - Madiha Nisar
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, People's Republic of China
| | - Herman H Y Sung
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, People's Republic of China
| | - Valerii V Vashchenko
- Department of Electrical and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, People's Republic of China
| | - Ian D Williams
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, People's Republic of China
| |
Collapse
|
5
|
Hemantha HP, Ramanujam R, Majeed M, Nagabhushanam K. An unambiguous and practical synthesis of Oroxylin A: a commonly misidentified flavone. Nat Prod Res 2019; 35:1413-1420. [PMID: 31402703 DOI: 10.1080/14786419.2019.1650359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Oroxylin A, a major flavonoid in the extracts of Oroxylum indicum as well as Scutellaria baicalensis possesses useful medicinal properties. Many of the published routes claiming the synthesis of Oroxylin A (1) have in fact led to a regioisomer Negletein that was misinterpreted as Oroxylin A. In the present work, we describe a novel, straight-forward and scalable semi-synthetic approach for rapid access to the title compound, the structure of which is unambiguously secured by NMR and X-ray crystallographic analysis of a derivative. This work also encompasses the synthesis of a glycosylated derivative of Oroxylin A viz OAGME (2), which has marked pharmacological importance.
Collapse
Affiliation(s)
| | | | - Muhammed Majeed
- Sami Labs Ltd, Bangalore, India.,Sabinsa Corporation, East Windsor, New Jersey, USA
| | | |
Collapse
|
6
|
Farhadi F, Khameneh B, Iranshahi M, Iranshahy M. Antibacterial activity of flavonoids and their structure-activity relationship: An update review. Phytother Res 2018; 33:13-40. [PMID: 30346068 DOI: 10.1002/ptr.6208] [Citation(s) in RCA: 263] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 08/05/2018] [Accepted: 09/12/2018] [Indexed: 12/13/2022]
Abstract
Based on World Health Organization reports, resistance of bacteria to well-known antibiotics is a major global health challenge now and in the future. Different strategies have been proposed to tackle this problem including inhibition of multidrug resistance pumps and biofilm formation in bacteria and development of new antibiotics with novel mechanism of action. Flavonoids are a large class of natural compounds, have been extensively studied for their antibacterial activity, and more than 150 articles have been published on this topic since 2005. Over the past decade, some promising results were obtained with the antibacterial activity of flavonoids. In some cases, flavonoids (especially chalcones) showed up to sixfold stronger antibacterial activities than standard drugs in the market. Some synthetic derivatives of flavonoids also exhibited remarkable antibacterial activities with 20- to 80-fold more potent activity than the standard drug against multidrug-resistant Gram-negative and Gram-positive bacteria (including Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus). This review summarizes the ever changing information on antibacterial activity of flavonoids since 2005, with a special focus on the structure-activity relationship and mechanisms of actions of this broad class of natural compounds.
Collapse
Affiliation(s)
- Faegheh Farhadi
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bahman Khameneh
- Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehrdad Iranshahi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Milad Iranshahy
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
7
|
Trinh H, Yoo Y, Won KH, Ngo HTT, Yang JE, Cho JG, Lee SW, Kim KY, Yi TH. Evaluation of in-vitro antimicrobial activity of Artemisia apiacea H. and Scutellaria baicalensis G. extracts. J Med Microbiol 2018; 67:489-495. [DOI: 10.1099/jmm.0.000709] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Huan Trinh
- College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Youngchul Yoo
- College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Kyung-Hwa Won
- SD Biotechnologies Co., Ltd., Seoul Hightech Venture Center, 29, Gonghang-daero 61-gil, Gangseo-gu, Seoul 07563, Republic of Korea
| | - Hien T. T. Ngo
- College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Jung-Eun Yang
- SD Biotechnologies Co., Ltd., Seoul Hightech Venture Center, 29, Gonghang-daero 61-gil, Gangseo-gu, Seoul 07563, Republic of Korea
| | - Jin-Gyeong Cho
- College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Sang-Won Lee
- College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Ki-Young Kim
- College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Tae-Hoo Yi
- College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| |
Collapse
|
8
|
|
9
|
Matsumoto T, Kaneko A, Koseki J, Matsubara Y, Aiba S, Yamasaki K. Pharmacokinetic Study of Bioactive Flavonoids in the Traditional Japanese Medicine Keigairengyoto Exerting Antibacterial Effects against Staphylococcus aureus. Int J Mol Sci 2018; 19:ijms19020328. [PMID: 29360768 PMCID: PMC5855550 DOI: 10.3390/ijms19020328] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/12/2018] [Accepted: 01/22/2018] [Indexed: 12/23/2022] Open
Abstract
Recent studies have demonstrated that flavonoid glucuronides can be deconjugated to the active form aglycone by β-glucuronidase-expressing macrophages. Keigairengyoto (KRT) is a flavonoid-rich traditional Japanese medicine reported to enhance bacterial clearance through immune modulation. Our aims are to examine the pharmacokinetics of KRT flavonoids and to identify active flavonoids contributing to the adjuvant effects of KRT. KRT was evaluated at pharmacokinetic analysis to quantify absorbed flavonoids, and cutaneous infection assay induced in mice by inoculation of Staphylococcus aureus. Preventive or therapeutic KRT administration reduced the number of bacteria in the infection site as well as macroscopic and microscopic lesion scores with efficacies similar to antibiotics. Pharmacokinetic study revealed low plasma levels of flavonoid aglycones after KRT administration; however, plasma concentrations were enhanced markedly by β-glucuronidase treatment, with baicalein the most abundant (Cmax, 1.32 µg/mL). In random screening assays, flavonoids such as bacalein, genistein, and apigenin enhanced bacteria phagocytosis by macrophages. Glucuronide bacalin was converted to aglycone baicalein by incubation with living macrophages, macrophage lysate, or skin homogenate. Taken together, the adjuvant effect of KRT may be due to some blood-absorbed flavonoids which enhance macrophage functions in host defense. Flavonoid-rich KRT may be a beneficial treatment for infectious skin inflammation.
Collapse
Affiliation(s)
- Takashi Matsumoto
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., Ibaraki 300-1192, Japan.
| | - Atsushi Kaneko
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., Ibaraki 300-1192, Japan.
| | - Junichi Koseki
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., Ibaraki 300-1192, Japan.
| | - Yosuke Matsubara
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., Ibaraki 300-1192, Japan.
| | - Setsuya Aiba
- Department of Dermatology, Tohoku University Graduate School of Medicine, Miyagi 980-8574, Japan.
| | - Kenshi Yamasaki
- Department of Dermatology, Tohoku University Graduate School of Medicine, Miyagi 980-8574, Japan.
| |
Collapse
|
10
|
Hariri BM, McMahon DB, Chen B, Adappa ND, Palmer JN, Kennedy DW, Lee RJ. Plant flavones enhance antimicrobial activity of respiratory epithelial cell secretions against Pseudomonas aeruginosa. PLoS One 2017; 12:e0185203. [PMID: 28931063 PMCID: PMC5607194 DOI: 10.1371/journal.pone.0185203] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 09/07/2017] [Indexed: 12/27/2022] Open
Abstract
Flavones are a class of natural plant secondary metabolites that have anti-inflammatory and anti-bacterial effects. Some flavones also activate the T2R14 bitter taste receptor, which is expressed in motile cilia of the sinonasal epithelium and activates innate immune nitric oxide (NO) production. Flavones may thus be potential therapeutics for respiratory infections. Our objective was to examine the anti-microbial effects of flavones on the common sinonasal pathogens Candida albicans, Staphylococcus aureus, and Pseudomonas aeruginosa, evaluating both planktonic and biofilm growth. Flavones had only very low-level antibacterial activity alone. They did not reduce biofilm formation, but did reduce production of the important P. aeruginosa inflammatory mediator and ciliotoxin pyocyanin. However, flavones exhibited synergy against P. aeruginosa in the presence of antibiotics or recombinant human lysozyme. They also enhanced the efficacy of antimicrobials secreted by cultured and primary human airway cells grown at air-liquid interface. This suggests that flavones may have anti-gram-negative potential as topical therapeutics when combined with antibiotics or in the context of innate antimicrobials secreted by the respiratory or other epithelia. This may have an additive effect when combined with T2R14-activated NO production. Additional studies are necessary to understand which flavone compounds or mixtures are the most efficacious.
Collapse
Affiliation(s)
- Benjamin M. Hariri
- Department of Otorhinolaryngology—Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Derek B. McMahon
- Department of Otorhinolaryngology—Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Bei Chen
- Department of Otorhinolaryngology—Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Nithin D. Adappa
- Department of Otorhinolaryngology—Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - James N. Palmer
- Department of Otorhinolaryngology—Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - David W. Kennedy
- Department of Otorhinolaryngology—Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Robert J. Lee
- Department of Otorhinolaryngology—Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
- Department of Physiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
- * E-mail:
| |
Collapse
|