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Zhang T, Ma X, Zhou Y, Yang H, Wang Y, Chen T, Chen Q, Deng Y. Metabolite Profiling of External and Internal Petals in Three Different Colors of Tea Flowers ( Camellia sinensis) Using Widely Targeted Metabolomics. Metabolites 2023; 13:784. [PMID: 37512491 PMCID: PMC10386189 DOI: 10.3390/metabo13070784] [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: 05/09/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
The flower is the reproductive organ of the tea plant, while it is also processed into different kinds of products and thus of great significance to be utilized. In this study, the non-volatile secondary metabolites in the internal and external petals of white, white and pink, and pink tea flowers were studied using a widely targeted metabolomics method with ultra-high liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). A total of 429 metabolites were identified, including 195 flavonoids, 121 phenolic acids, 40 alkaloids, 29 lignans and coumarins, 19 tannins, 17 terpenoids, and 8 other metabolites. The metabolites in the internal and external petals of different colored flowers showed great changes in flavonoids. Most flavonoids and all tannins in the internal petals were higher compared with the external petals. Some phenolic acids were more accumulated in the external petals, while others showed opposite trends. The pink tea flower contained more flavonoids, alkaloids, lignans, coumarins, terpenoids, and tannins compared with white tea flowers. In addition, cyanidin-3-O-glucoside was more accumulated in the external petals of the pink flower, indicating that anthocyanin may be the main reason for the color difference between the pink and white tea flower. The enriched metabolic pathways of different colored flowers were involved in flavonoid biosynthesis, glycine, serine and threonine metabolism, glycerophospholipid metabolism, and phenylpropanoid biosynthesis. The findings of this study broaden the current understanding of non-volatile compound changes in tea plants. It is also helpful to lay a theoretical foundation for integrated applications of tea flowers.
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Affiliation(s)
- Tao Zhang
- College of Tea, Guizhou University, Jiaxiu South Road, Huaxi District, Guiyang 550025, China; (T.Z.); (H.Y.); (Y.W.); (T.C.)
| | - Xue Ma
- College of Agriculture, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Qingshan Lake District, Nanchang 330045, China; (X.M.); (Y.Z.)
| | - Yuanyuan Zhou
- College of Agriculture, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Qingshan Lake District, Nanchang 330045, China; (X.M.); (Y.Z.)
| | - Hui Yang
- College of Tea, Guizhou University, Jiaxiu South Road, Huaxi District, Guiyang 550025, China; (T.Z.); (H.Y.); (Y.W.); (T.C.)
| | - Yuxin Wang
- College of Tea, Guizhou University, Jiaxiu South Road, Huaxi District, Guiyang 550025, China; (T.Z.); (H.Y.); (Y.W.); (T.C.)
| | - Taolin Chen
- College of Tea, Guizhou University, Jiaxiu South Road, Huaxi District, Guiyang 550025, China; (T.Z.); (H.Y.); (Y.W.); (T.C.)
| | - Qincao Chen
- College of Agriculture, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Qingshan Lake District, Nanchang 330045, China; (X.M.); (Y.Z.)
| | - Yanli Deng
- College of Tea, Guizhou University, Jiaxiu South Road, Huaxi District, Guiyang 550025, China; (T.Z.); (H.Y.); (Y.W.); (T.C.)
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Medina-Barandica J, Contreras-Puentes N, Tarón-Dunoyer A, Durán-Lengua M, Alviz-Amador A. In-silico study for the identification of potential destabilizers between the spike protein of SARS-CoV-2 and human ACE-2. INFORMATICS IN MEDICINE UNLOCKED 2023; 40:101278. [PMID: 37305192 PMCID: PMC10241490 DOI: 10.1016/j.imu.2023.101278] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/16/2023] [Accepted: 05/16/2023] [Indexed: 06/13/2023] Open
Abstract
The emergence of the new SARS-CoV-2 virus, which causes the disease known as COVID-19, has generated a pandemic that has plunged the world into a health crisis. The infection process is triggered by the direct binding of the receptor-binding domain (RBD) of the spike (S) protein of SARS-CoV-2 to the angiotensin-converting enzyme 2 (ACE2) of the host cell. In the present study, virtual screening techniques such as molecular docking, molecular dynamics, calculation of free energy using the GBSA method, prediction of drug similarity, pharmacokinetic, and toxicological properties of various ligands interacting with the RBD-ACE2 complex were applied. The ligands radotinib, hinokiflavone, and ginkgetin were identified as potential destabilizers of the RBD-ACE2 interaction, which could produce their pharmacological effect by interacting at an allosteric site of ACE2, with affinity energy values of -10.2 ± 0.1, -9.8 ± 0.0, and -9.4 ± 0.0 kcal/mol, indicating strong receptor affinity. The complex with hinokiflavone showed the highest conformational stability and rigidity of the dynamic simulation and also obtained the best binding free energy of the three molecules, with an energy of -215.86 kcal/mol.
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Affiliation(s)
- Jeffry Medina-Barandica
- Pharmacology and Therapeutic Research Group, Faculty of Pharmaceutical Sciences, University of Cartagena, Cartagena, D.T. y C, Colombia
| | - Neyder Contreras-Puentes
- Pharmacology and Therapeutic Research Group, Faculty of Pharmaceutical Sciences, University of Cartagena, Cartagena, D.T. y C, Colombia
- GINUMED, Faculty of Health Sciences, Rafael Nuñez University Corporation, Cartagena D.T. y C., Colombia
| | - Arnulfo Tarón-Dunoyer
- GIBAE Research Group, Faculty of Engineering, University of Cartagena, Cartagena, D.T. y C, Colombia
| | - Marlene Durán-Lengua
- FARMABAC Research Group, Faculty of Medicine, University of Cartagena, Cartagena, D.T. y C, Colombia
| | - Antistio Alviz-Amador
- Pharmacology and Therapeutic Research Group, Faculty of Pharmaceutical Sciences, University of Cartagena, Cartagena, D.T. y C, Colombia
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Barreira CFT, de Oliveira VS, Chávez DWH, Gamallo OD, Castro RN, Júnior PCD, Sawaya ACHF, da Silva Ferreira M, Sampaio GR, Torres EAFDS, Saldanha T. The impacts of pink pepper (Schinus terebinthifolius Raddi) on fatty acids and cholesterol oxides formation in canned sardines during thermal processing. Food Chem 2023; 403:134347. [DOI: 10.1016/j.foodchem.2022.134347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 09/08/2022] [Accepted: 09/17/2022] [Indexed: 12/01/2022]
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Zhang S, Sun Y, Yao F, Li H, Yang Y, Li X, Bai Z, Hu Y, Wang P, Xu X. Ginkgo Biflavones Cause p53 Wild-Type Dependent Cell Death in a Transcription-Independent Manner of p53. JOURNAL OF NATURAL PRODUCTS 2023; 86:346-356. [PMID: 36700552 DOI: 10.1021/acs.jnatprod.2c00959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Ginkgo biloba, as a medicinal plant in both traditional and western medicine, emerged as a potential therapeutic agent for the management of a variety of diseases, but ginkgo biflavones (bilobetin, isoginkgetin, and ginkgetin) application in cancer therapy and underlying mechanisms of action remained elusive. In the present study, we identified ginkgo biflavones as potential p53 activators that could enhance p53 protein expression level by inhibiting MDM2 protein expression. At the same time, they induced cell death independent of p53 transcriptional activity. Moreover, ginkgetin was a standout among ginkgo biflavones that reduced the survival of HCT-116 cells by induction of apoptosis and G2/M phase arrest. Furthermore, ginkgo biflavones induced ROS generation significantly, which resulted in ferroptosis. Finally, we provide evidence that ginkgetin strengthened the antitumor effect of fluorouracil (5-FU) in the HCT-116 colon cancer xenograft model. To sum up, ginkgo biflavones represent a new class of p53 activator that depends on the p53 wild-type status and warrants further exploration as potential anticancer agents.
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Affiliation(s)
- Siyu Zhang
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, P. R. China
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
| | - Yujie Sun
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Fengli Yao
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266071, P. R. China
| | - Hongju Li
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266071, P. R. China
| | - Yacong Yang
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Xionghao Li
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Zhongyue Bai
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Yu Hu
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Peng Wang
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266071, P. R. China
| | - Ximing Xu
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
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Structural Insights into Plasticity and Discovery of Flavonoid Allosteric Inhibitors of Flavivirus NS2B–NS3 Protease. BIOPHYSICA 2023. [DOI: 10.3390/biophysica3010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Flaviviruses are among the most critical pathogens in tropical regions; they cause various severe diseases in developing countries but are not restricted to these countries. The development of antiviral therapeutics is crucial for managing flavivirus outbreaks. Ten proteins are encoded in the flavivirus RNA. The N2B–NS3pro protein complex plays a fundamental role in flavivirus replication and is a promising drug target; however, no flavivirus protease inhibitors have progressed to the preclinical stage. This study analyzed the structural models and plasticity of the NS2B–NS3pro protein complex of five medically important non-dengue flaviviruses (West Nile, Rocio, Ilhéus, yellow fever, and Saint Louis encephalitis). The flavonoids amentoflavone, tetrahydrorobustaflavone, and quercetin were selected for their exceptional binding energies as potential inhibitors of the NS2B–NS3pro protein complex. AutoDock Vina results ranged from −7.0 kcal/mol to −11.5 kcal/mol and the compounds preferentially acted non-competitively. Additionally, the first structural model for the NS2B–NS3pro protein complex was proposed for Ilhéus and Rocio viruses. The NS2B–NS3pro protease is an attractive molecular target for drug development. The three identified natural flavonoids showed great inhibitory potential against the viral species. Nevertheless, further in silico and in vitro studies are required to obtain more information regarding NS2B–NS3pro inhibition by these flavonoids and their therapeutic potential.
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Xu Z, Eichler B, Klausner EA, Duffy-Matzner J, Zheng W. Lead/Drug Discovery from Natural Resources. Molecules 2022; 27:molecules27238280. [PMID: 36500375 PMCID: PMC9736696 DOI: 10.3390/molecules27238280] [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: 10/03/2022] [Revised: 11/18/2022] [Accepted: 11/18/2022] [Indexed: 11/29/2022] Open
Abstract
Natural products and their derivatives have been shown to be effective drug candidates against various diseases for many years. Over a long period of time, nature has produced an abundant and prosperous source pool for novel therapeutic agents with distinctive structures. Major natural-product-based drugs approved for clinical use include anti-infectives and anticancer agents. This paper will review some natural-product-related potent anticancer, anti-HIV, antibacterial and antimalarial drugs or lead compounds mainly discovered from 2016 to 2022. Structurally typical marine bioactive products are also included. Molecular modeling, machine learning, bioinformatics and other computer-assisted techniques that are very important in narrowing down bioactive core structural scaffolds and helping to design new structures to fight against key disease-associated molecular targets based on available natural products are considered and briefly reviewed.
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Affiliation(s)
- Zhihong Xu
- Department of Chemistry and Biochemistry, Augustana University, 2001 S Summit Ave., Sioux Falls, SD 57197, USA
- Institute of Interventional & Vascular Surgery, Tongji University, Shanghai 200072, China
- Department of Pharmaceutical Sciences, South College School of Pharmacy, 400 Goody’s Lane, Knoxville, TN 37922, USA
- Correspondence: ; Tel.: +1-(605)-274-5008
| | - Barrett Eichler
- Department of Chemistry and Biochemistry, Augustana University, 2001 S Summit Ave., Sioux Falls, SD 57197, USA
| | - Eytan A. Klausner
- Department of Pharmaceutical Sciences, South College School of Pharmacy, 400 Goody’s Lane, Knoxville, TN 37922, USA
| | - Jetty Duffy-Matzner
- Department of Chemistry and Biochemistry, Augustana University, 2001 S Summit Ave., Sioux Falls, SD 57197, USA
| | - Weifan Zheng
- Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, 1801 Fayetteville St., Durham, NC 27707, USA
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Hu Q, Xiong Y, Zhu GH, Zhang YN, Zhang YW, Huang P, Ge GB. The SARS-CoV-2 main protease (M pro): Structure, function, and emerging therapies for COVID-19. MedComm (Beijing) 2022; 3:e151. [PMID: 35845352 PMCID: PMC9283855 DOI: 10.1002/mco2.151] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/06/2022] [Accepted: 06/06/2022] [Indexed: 12/21/2022] Open
Abstract
The main proteases (Mpro), also termed 3‐chymotrypsin‐like proteases (3CLpro), are a class of highly conserved cysteine hydrolases in β‐coronaviruses. Increasing evidence has demonstrated that 3CLpros play an indispensable role in viral replication and have been recognized as key targets for preventing and treating coronavirus‐caused infectious diseases, including COVID‐19. This review is focused on the structural features and biological function of the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) main protease Mpro (also known as 3CLpro), as well as recent advances in discovering and developing SARS‐CoV‐2 3CLpro inhibitors. To better understand the characteristics of SARS‐CoV‐2 3CLpro inhibitors, the inhibition activities, inhibitory mechanisms, and key structural features of various 3CLpro inhibitors (including marketed drugs, peptidomimetic, and non‐peptidomimetic synthetic compounds, as well as natural compounds and their derivatives) are summarized comprehensively. Meanwhile, the challenges in this field are highlighted, while future directions for designing and developing efficacious 3CLpro inhibitors as novel anti‐coronavirus therapies are also proposed. Collectively, all information and knowledge presented here are very helpful for understanding the structural features and inhibitory mechanisms of SARS‐CoV‐2 3CLpro inhibitors, which offers new insights or inspiration to medicinal chemists for designing and developing more efficacious 3CLpro inhibitors as novel anti‐coronavirus agents.
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Affiliation(s)
- Qing Hu
- Shanghai Frontiers Science Center of TCM Chemical Biology Institute of Interdisciplinary Integrative Medicine Research Shanghai University of Traditional Chinese Medicine Shanghai China.,Clinical Pharmacy Center Cancer Center Department of Pharmacy Zhejiang Provincial People's Hospital Affiliated People's Hospital Hangzhou Medical College, Hangzhou Zhejiang China
| | - Yuan Xiong
- Shanghai Frontiers Science Center of TCM Chemical Biology Institute of Interdisciplinary Integrative Medicine Research Shanghai University of Traditional Chinese Medicine Shanghai China
| | - Guang-Hao Zhu
- Shanghai Frontiers Science Center of TCM Chemical Biology Institute of Interdisciplinary Integrative Medicine Research Shanghai University of Traditional Chinese Medicine Shanghai China
| | - Ya-Ni Zhang
- Shanghai Frontiers Science Center of TCM Chemical Biology Institute of Interdisciplinary Integrative Medicine Research Shanghai University of Traditional Chinese Medicine Shanghai China
| | - Yi-Wen Zhang
- Clinical Pharmacy Center Cancer Center Department of Pharmacy Zhejiang Provincial People's Hospital Affiliated People's Hospital Hangzhou Medical College, Hangzhou Zhejiang China
| | - Ping Huang
- Clinical Pharmacy Center Cancer Center Department of Pharmacy Zhejiang Provincial People's Hospital Affiliated People's Hospital Hangzhou Medical College, Hangzhou Zhejiang China
| | - Guang-Bo Ge
- Shanghai Frontiers Science Center of TCM Chemical Biology Institute of Interdisciplinary Integrative Medicine Research Shanghai University of Traditional Chinese Medicine Shanghai China
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Hinokiflavone Attenuates the Virulence of Methicillin-Resistant Staphylococcus aureus by Targeting Caseinolytic Protease P. Antimicrob Agents Chemother 2022; 66:e0024022. [PMID: 35862746 PMCID: PMC9380526 DOI: 10.1128/aac.00240-22] [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: 01/13/2023] Open
Abstract
Drug-resistant bacteria was the third leading cause of death worldwide in 2019, which sounds like a cautionary note for global public health. Therefore, developing novel strategies to combat Methicillin-resistant Staphylococcus aureus (MRSA) infections is the need of the hour. Caseinolytic protease P (ClpP) represents pivotal microbial degradation machinery in MRSA involved in bacterial homeostasis and pathogenicity, considered an ideal target for combating S. aureus infections. Herein, we identified a natural compound, hinokiflavone, that inhibited the activity of ClpP of MRSA strain USA300 with an IC50 of 34.36 μg/mL. Further assays showed that hinokiflavone reduced the virulence of S. aureus by inhibiting multiple virulence factors expression. Results obtained from cellular thermal transfer assay (CETSA), thermal shift assay (TSA), local surface plasmon resonance (LSPR) and molecular docking (MD) assay enunciated that hinokiflavone directly bonded to ClpP with confirmed docking sites, including SER-22, LYS-26 and ARG-28. In vivo, the evaluation of anti-infective activity showed that hinokiflavone in combination with vancomycin effectively protected mice from MRSA-induced fatal pneumonia, which was more potent than vancomycin alone. As mentioned above, hinokiflavone, as an inhibitor of ClpP, could be further developed into a promising adjuvant against S. aureus infections.
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Abdizadeh R, Hadizadeh F, Abdizadeh T. Evaluation of apigenin-based biflavonoid derivatives as potential therapeutic agents against viral protease (3CLpro) of SARS-CoV-2 via molecular docking, molecular dynamics and quantum mechanics studies. J Biomol Struct Dyn 2022:1-31. [PMID: 35848354 DOI: 10.1080/07391102.2022.2098821] [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: 10/17/2022]
Abstract
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is the causative agent of the pandemic COVID-19 disease that affects human respiratory function. Despite the scientific progression made in the development of the vaccine, there is an urgent need for the discovery of antiviral drugs for better performance at different stages of SARS-CoV-2 reproduction. The main protease (Mpro or 3CLpro) plays a pivotal role in the life cycle of the virus, making it an attractive target for the development of antiviral agents effective against the new strains of coronaviruses (CoVs). In this study, a series of apigenin-based natural biflavonoid derivatives as potential inhibitors of coronaviruses 3CLpro was investigated by in silico approaches. For this purpose, the molecular docking was performed to analyze the interaction of the natural biflavonoids with SARS-Cov-2 main protease and for further investigation, docking to the 3CLpro of SARS-CoV and MERS-CoV. Based on docking scores and comparison with the reference inhibitors (ritonavir and lopinavir), more than half of the biflavonoids had strong interactions with the residues of the binding pocket of the coronaviruses 3CLpro and exhibited better binding affinities toward the main protease than ritonavir and lopinavir. The top biflavonoids were further explored through molecular dynamics simulation, binding free energy calculation and residual energy contributions estimated by the MM-PBSA. Also, drug likeness property investigation by Swiss ADME tools and density functional theory (DFT) calculations were performed. The results confirmed that the 3CLpro-amentoflavone, 3CLpro-bilobetin, 3CLpro-ginkgetin, and 3CLpro-sotetsuflavone complexes possess a large amount of dynamic properties such as high stability, significant binding energy and fewer conformation fluctuations. Also, the pharmacokinetics and drug-likeness studies and HOMO-LUMO and DFT descriptor values indicated a promising result of the selected natural biflavonoids. Overall findings indicate that the apigenin-based biflavonoids may inhibit COVID-19 by significant interactions in the binding pocket and those results can pave the way in drug discovery although the effectiveness of these bioactive compounds should be further validated by in-vitro and in-vivo investigations. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Rahman Abdizadeh
- Department of Medical Parasitology and Mycology, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Farzin Hadizadeh
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Tooba Abdizadeh
- Clinical Biochemistry Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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10
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Qin X, Chen X, Guo L, Liu J, Yang Y, Zeng Y, Li C, Liu W, Ma W. Hinokiflavone induces apoptosis, cell cycle arrest and autophagy in chronic myeloid leukemia cells through MAPK/NF-κB signaling pathway. BMC Complement Med Ther 2022; 22:100. [PMID: 35387632 PMCID: PMC8988348 DOI: 10.1186/s12906-022-03580-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
Background Chronic myeloid leukemia (CML) is a myeloproliferative tumor originating from hematopoietic stem cells, and resistance to tyrosine kinase inhibitors (TKI) has become a major cause of treatment failure. Alternative drug therapy is one of the important ways to overcome TKI resistance. Hinokiflavone (HF) is a C-O-C type biflavonoid with low toxicity and antitumor activity. This study investigated the antitumor effect and possible mechanisms of HF in CML cells. Methods Cell viability was measured by CCK-8 assay. Cell apoptosis and cell cycle distribution were analyzed by flow cytometry. Western blotting was used to assess protein expression levels. Results Our results showed that HF significantly inhibited the viability of K562 cells in a concentration- and time-dependent manner and induced G2/M phase arrest by up-regulating p21 and down-regulating Cdc2 protein. Furthermore, HF induced caspase-dependent apoptosis by activating JNK/p38 MAPK signaling pathway and inhibiting NF-κB activity. In addition, HF induced autophagy by increasing LC3-II expression and p62 degradation. Pretreatment with CQ, a late autophagy inhibitor, significantly increased the levels of LC3-II and p62 proteins and promoted cell survival. Conclusion HF shows a good anti-leukemia effect and is expected to become a potential therapeutic drug for CML. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-022-03580-7.
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Affiliation(s)
- Xiang Qin
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, 999078, Macau, China.,Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Children Hematological Oncology and Birth Defects Laboratory, Sichuan Clinical Research Center for Birth Defects, No. 25, Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Xi Chen
- Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Children Hematological Oncology and Birth Defects Laboratory, Sichuan Clinical Research Center for Birth Defects, No. 25, Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Ling Guo
- Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Children Hematological Oncology and Birth Defects Laboratory, Sichuan Clinical Research Center for Birth Defects, No. 25, Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Jing Liu
- Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Children Hematological Oncology and Birth Defects Laboratory, Sichuan Clinical Research Center for Birth Defects, No. 25, Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - You Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, 999078, Macau, China.,Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Children Hematological Oncology and Birth Defects Laboratory, Sichuan Clinical Research Center for Birth Defects, No. 25, Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Yan Zeng
- Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Children Hematological Oncology and Birth Defects Laboratory, Sichuan Clinical Research Center for Birth Defects, No. 25, Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Cheng Li
- Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Children Hematological Oncology and Birth Defects Laboratory, Sichuan Clinical Research Center for Birth Defects, No. 25, Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Wenjun Liu
- Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Children Hematological Oncology and Birth Defects Laboratory, Sichuan Clinical Research Center for Birth Defects, No. 25, Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China.
| | - Wenzhe Ma
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, 999078, Macau, China.
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Zhang S, Wang Y, Sun Y, Zhao G, Wang J, Liu L, Liu F, Wang P, Yang J, Xu X. Hinokiflavone, as a MDM2 inhibitor, activates p53 signaling pathway to induce apoptosis in human colon cancer HCT116 cells. Biochem Biophys Res Commun 2022; 594:93-100. [PMID: 35078113 DOI: 10.1016/j.bbrc.2022.01.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/03/2022] [Accepted: 01/10/2022] [Indexed: 11/28/2022]
Abstract
Hinokiflavone (HF), a natural biflavonoid that possesses various biological activities, has reported that HF could be a pre-mRNA splicing modulator, whereas its underlying mechanisms remain elusive. In the present study, we identified HF as a potential MDM2 inhibitor. What's more, we found that HF suppressed mdm2 mRNA synthesis at the transcriptional level. Then, this MDM2 inhibition led in turn to increase p53 protein expression and activate p53 pathway, which could decrease the survival of HCT116 colon cells by G2/M phase arrest and apoptosis induction. Then, bioinformatics suggested that ESR1 was a predicted and potential target of HF. Finally, we used molecular docking and molecular dynamics simulation to demonstrate the binding patterns of HF and ESR1. To sum up, our study unearthed that HF was a feasible agent for MDM2 inhibitor through down-regulating mdm2 RNA level and activating p53 signaling pathway.
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Affiliation(s)
- Siyu Zhang
- School of Life Science, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Yifan Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266071, China
| | - Yujie Sun
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, Shandong, China
| | - Guangjian Zhao
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, Shandong, China
| | - Juan Wang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, Shandong, China
| | - Lu Liu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, Shandong, China
| | - Fang Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Peng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266071, China
| | - Jinbo Yang
- School of Life Science, Lanzhou University, Lanzhou, 730000, Gansu, China; Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China; School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, Shandong, China; Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, China
| | - Ximing Xu
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China; School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, Shandong, China; Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, China.
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Xu J, Wang Y, Zheng T, Huo Y, Du W. Biflavones inhibit the fibrillation and cytotoxicity of human islet amyloid polypeptide. J Mater Chem B 2022; 10:4650-4661. [DOI: 10.1039/d2tb00230b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biflavones are a kind of natural compounds with a variety of biological activities, which have the effects of reversing diabetes and neurodegenerative diseases. Human islet amyloid polypeptide (hIAPP) is closely...
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Semysinthetic biflavonoid Morelloflavone-7,4',7″,3‴,4‴-penta-O-butanoyl is a more potent inhibitor of Proprotein Convertases Subtilisin/Kexin PC1/3 than Kex2 and Furin. Biochim Biophys Acta Gen Subj 2021; 1865:130016. [PMID: 34560176 DOI: 10.1016/j.bbagen.2021.130016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 08/11/2021] [Accepted: 09/17/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND Garcinia brasiliensis is a species native to the Amazon forest. The white mucilaginous pulp is used in folk medicine as a wound healing agent and for peptic ulcer, urinary, and tumor disease treatments. The activity of the proprotein convertases (PCs) Subtilisin/Kex is associated with the development of viral, bacterial and fungal infections, osteoporosis, hyperglycemia, atherosclerosis, cardiovascular, neurodegenerative and neoplastic diseases. METHODS Morelloflavone (BF1) and semisynthetic biflavonoid (BF2, 3 and 4) from Garcinia brasiliensis were tested as inhibitor of PCs Kex2, PC1/3 and Furin, and determined IC50, Ki, human proinflammatory cytokines secretion in Caco-2 cells, mechanism of inhibition, and performed molecular docking studies. RESULTS Biflavonoids were more effective in the inhibition of neuroendocrine PC1/3 than mammalian Furin and fungal Kex2. BF1 presented a mixed inhibition mechanism for Kex2 and PC1, and competitive inhibition for Furin. BF4 has no good interaction with Kex2 and Furin since carboxypropyl groups results in steric hindrance to ligand-protein interactions. Carboxypropyl groups of BF4 promote steric hindrance with Kex2 and Furin, but effective in the affinity of PC1/3. BF4 was more efficient at inhibiting PCl/3 (IC50 = 1.13 μM and Ki = 0,59 μM, simple linear competitive mechanism of inhibition) than Kex2, Furin. Also, our results strongly suggested that BF4 also inhibits the endogenous cellular PC1/3 activity in Caco-2 cells, since PC1/3 inhibition by BF4 causes a large increase in IL-8 and IL-1β secretion in Caco-2 cells. CONCLUSIONS BF4 is a potent and selective inhibitor of PC1/3. GENERAL SIGNIFICANCE BF4 is the best candidate for further clinical studies on inhibition of PC1/3.
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Lou H, Hu L, Lu H, Wei T, Chen Q. Metabolic Engineering of Microbial Cell Factories for Biosynthesis of Flavonoids: A Review. Molecules 2021; 26:4522. [PMID: 34361675 PMCID: PMC8348848 DOI: 10.3390/molecules26154522] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/15/2021] [Accepted: 07/25/2021] [Indexed: 12/17/2022] Open
Abstract
Flavonoids belong to a class of plant secondary metabolites that have a polyphenol structure. Flavonoids show extensive biological activity, such as antioxidative, anti-inflammatory, anti-mutagenic, anti-cancer, and antibacterial properties, so they are widely used in the food, pharmaceutical, and nutraceutical industries. However, traditional sources of flavonoids are no longer sufficient to meet current demands. In recent years, with the clarification of the biosynthetic pathway of flavonoids and the development of synthetic biology, it has become possible to use synthetic metabolic engineering methods with microorganisms as hosts to produce flavonoids. This article mainly reviews the biosynthetic pathways of flavonoids and the development of microbial expression systems for the production of flavonoids in order to provide a useful reference for further research on synthetic metabolic engineering of flavonoids. Meanwhile, the application of co-culture systems in the biosynthesis of flavonoids is emphasized in this review.
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Affiliation(s)
- Hanghang Lou
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China; (H.L.); (H.L.); (T.W.)
| | - Lifei Hu
- Hubei Key Lab of Quality and Safety of Traditional Chinese Medicine & Health Food, Huangshi 435100, China;
| | - Hongyun Lu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China; (H.L.); (H.L.); (T.W.)
| | - Tianyu Wei
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China; (H.L.); (H.L.); (T.W.)
| | - Qihe Chen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China; (H.L.); (H.L.); (T.W.)
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15
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de Leon VNO, Manzano JAH, Pilapil DYH, Fernandez RAT, Ching JKAR, Quimque MTJ, Agbay JCM, Notarte KIR, Macabeo APG. Anti-HIV reverse transcriptase plant polyphenolic natural products with in silico inhibitory properties on seven non-structural proteins vital in SARS-CoV-2 pathogenesis. J Genet Eng Biotechnol 2021; 19:104. [PMID: 34272647 PMCID: PMC8284420 DOI: 10.1186/s43141-021-00206-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/06/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Accessing COVID-19 vaccines is a challenge despite successful clinical trials. This burdens the COVID-19 treatment gap, thereby requiring accelerated discovery of anti-SARS-CoV-2 agents. This study explored the potential of anti-HIV reverse transcriptase (RT) phytochemicals as inhibitors of SARS-CoV-2 non-structural proteins (nsps) by targeting in silico key sites in the structures of SARS-CoV-2 nsps. One hundred four anti-HIV phytochemicals were subjected to molecular docking with nsp3, 5, 10, 12, 13, 15, and 16. Top compounds in complex with the nsps were investigated further through molecular dynamics. The drug-likeness and ADME (absorption, distribution, metabolism, and excretion) properties of the top compounds were also predicted using SwissADME. Their toxicity was likewise determined using OSIRIS Property Explorer. RESULTS Among the top-scoring compounds, the polyphenolic functionalized natural products comprised of biflavones 1, 4, 11, 13, 14, 15; ellagitannin 9; and bisisoquinoline alkaloid 19 were multi-targeting and exhibited strongest binding affinities to at least two nsps (binding energy = - 7.7 to - 10.8 kcal/mol). The top ligands were stable in complex with their target nsps as determined by molecular dynamics. Several top-binding compounds were computationally druggable, showed good gastrointestinal absorptive property, and were also predicted to be non-toxic. CONCLUSIONS Twenty anti-HIV RT phytochemicals showed multi-targeting inhibitory potential against SARS-CoV-2 non-structural proteins 3, 5, 10, 12, 13, 15, and 16. Our results highlight the importance of polyhydroxylated aromatic substructures for effective attachment in the binding/catalytic sites of nsps involved in post-translational mechanism pathways. As such with the nsps playing vital roles in viral pathogenesis, our findings provide inspiration for the design and discovery of novel anti-COVID-19 drug prototypes.
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Affiliation(s)
- Von Novi O de Leon
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
- Department of Biological Sciences, College of Science, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
| | - Joe Anthony H Manzano
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
- Department of Biological Sciences, College of Science, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
| | - Delfin Yñigo H Pilapil
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
- Department of Biological Sciences, College of Science, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
| | - Rey Arturo T Fernandez
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
| | - James Kyle Anthony R Ching
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
- Department of Chemistry, College of Science, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
| | - Mark Tristan J Quimque
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
- The Graduate School, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
- Chemistry Department, College of Science and Mathematics, Mindanao State University - Iligan Institute of Technology, Tibanga, 9200, Iligan City, Philippines
| | - Jay Carl M Agbay
- Chemistry Department, College of Science and Mathematics, Mindanao State University - Iligan Institute of Technology, Tibanga, 9200, Iligan City, Philippines
- Philippine Science High School - Central Mindanao Campus, 9217 Balo-I, Lanao del Norte, Philippines
| | - Kin Israel R Notarte
- Faculty of Medicine and Surgery, University of Santo Tomas, España Blvd., 1015, Manila, Philippines
| | - Allan Patrick G Macabeo
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., 1015, Manila, Philippines.
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Donadio G, Mensitieri F, Santoro V, Parisi V, Bellone ML, De Tommasi N, Izzo V, Dal Piaz F. Interactions with Microbial Proteins Driving the Antibacterial Activity of Flavonoids. Pharmaceutics 2021; 13:660. [PMID: 34062983 PMCID: PMC8147964 DOI: 10.3390/pharmaceutics13050660] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 04/29/2021] [Accepted: 05/01/2021] [Indexed: 12/14/2022] Open
Abstract
Flavonoids are among the most abundant natural bioactive compounds produced by plants. Many different activities have been reported for these secondary metabolites against numerous cells and systems. One of the most interesting is certainly the antimicrobial, which is stimulated through various molecular mechanisms. In fact, flavonoids are effective both in directly damaging the envelope of Gram-negative and Gram-positive bacteria but also by acting toward specific molecular targets essential for the survival of these microorganisms. The purpose of this paper is to present an overview of the most interesting results obtained in the research focused on the study of the interactions between flavonoids and bacterial proteins. Despite the great structural heterogeneity of these plant metabolites, it is interesting to observe that many flavonoids affect the same cellular pathways. Furthermore, it is evident that some of these compounds interact with more than one target, producing multiple effects. Taken together, the reported data demonstrate the great potential of flavonoids in developing innovative systems, which can help address the increasingly serious problem of antibiotic resistance.
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Affiliation(s)
- Giuliana Donadio
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (G.D.); (V.S.); (V.P.); (M.L.B.); (N.D.T.)
| | - Francesca Mensitieri
- Department of Medicine and Surgery, University of Salerno, 84082 Baronissi, Italy; (F.M.); (V.I.)
| | - Valentina Santoro
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (G.D.); (V.S.); (V.P.); (M.L.B.); (N.D.T.)
| | - Valentina Parisi
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (G.D.); (V.S.); (V.P.); (M.L.B.); (N.D.T.)
- PhD Program in Drug Discovery and Development, Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
| | - Maria Laura Bellone
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (G.D.); (V.S.); (V.P.); (M.L.B.); (N.D.T.)
- PhD Program in Drug Discovery and Development, Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
| | - Nunziatina De Tommasi
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (G.D.); (V.S.); (V.P.); (M.L.B.); (N.D.T.)
| | - Viviana Izzo
- Department of Medicine and Surgery, University of Salerno, 84082 Baronissi, Italy; (F.M.); (V.I.)
| | - Fabrizio Dal Piaz
- Department of Medicine and Surgery, University of Salerno, 84082 Baronissi, Italy; (F.M.); (V.I.)
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Menezes JCJMDS, Diederich MF. Bioactivity of natural biflavonoids in metabolism-related disease and cancer therapies. Pharmacol Res 2021; 167:105525. [PMID: 33667686 DOI: 10.1016/j.phrs.2021.105525] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/06/2021] [Accepted: 02/27/2021] [Indexed: 12/17/2022]
Abstract
Natural biflavonoids, such as amentoflavone, bilobetin, ginkgetin, isoginkgetin, taiwaniaflavone, morelloflavone, delicaflavone, hinokiflavone, and other derivatives (~ 40 biflavonoids), are isolated from Selaginella sp., Ginkgo biloba, Garcinia sp., and several other species of plants. They are able to exert therapeutic benefits by regulating several proteins/enzymes (PPAR-γ, CCAAT/enhancer-binding protein α [C/EBPα], STAT5, pancreatic lipase, PTP1B, fatty acid synthase, α-glucosidase [AG]) and insulin signaling pathways (via PI3K-AKT), which are linked to metabolism, cell growth, and cell survival mechanisms. Deregulated insulin signaling can cause complications of obesity and diabetes, which can lead to cognitive disorders such as Alzheimer's, Parkinson's, and dementia; therefore, the therapeutic benefits of these biflavones in these areas are highlighted. Since biflavonoids have shown potential to regulate metabolism, growth- and survival-related protein/enzymes, their relation to tumor growth and metastasis of cancer associated with angiogenesis are highlighted. The translational role of biflavones in cancer with respect to the inhibition of metabolism-related processes/pathways, enzymes, or proteins, such as STAT3/SHP-1/PTEN, kinesins, tissue kallikreins, aromatase, estrogen, protein modifiers, antioxidant, autophagy, and apoptosis induction mechanisms, are discussed. Finally, considering their observed bioactivity potential, oral bioavailability studies of biflavones and related clinical trials are outlined.
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Affiliation(s)
- José C J M D S Menezes
- Faculty of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan
| | - Marc F Diederich
- Department of Pharmacy, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea.
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