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Taank Y, Randhawa V, Agnihotri N. Ergosterol and its metabolites as agonists of Liver X receptor and their anticancer potential in colorectal cancer. J Steroid Biochem Mol Biol 2024; 243:106572. [PMID: 38908720 DOI: 10.1016/j.jsbmb.2024.106572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/10/2024] [Accepted: 06/20/2024] [Indexed: 06/24/2024]
Abstract
Aberrant cholesterol homeostasis is a well-recognized hallmark of cancer and is implicated in metastasis as well as chemotherapeutic resistance, the two major causes of cancer associated mortality. Liver X receptors (LXRs) are the key transcription factors that induce cholesterol efflux via enhancing the expression of ABCA1 and ABCG1. Therefore, a comprehensive analysis of several novel sterols namely ergosta-7,22,24(28)-trien-3β-ol (Erg1), ergosta-5,22,25-trien-3-ol (Erg2), ergosta-5,7,22,24(28)-tetraen-3β-ol (Erg3), and ergosta-7,22-dien-3β-ol (Erg4) as LXR agonists has been performed. Molecular docking studies have shown that these sterols possess higher binding affinities for LXRs as compared to the reference ligands (GW3965 and TO901317) and also formed critical activating interactions. Molecular dynamic (MD) simulations further confirmed that docking complexes made of these sterols possess significant stability. To assess the extent of LXR activation, ABCA1 promoter was cloned into luciferase reporter plasmid and transfected into HCT116 cells. It was observed that treatment with Erg, Erg2 and Erg4 led to a significant LXR activation with an EC50 of 5.64 µM, 4.83 and 3.03 µM respectively. Furthermore, a significant increase in mRNA expression of NR1H2 and LXR target genes i.e. ABCA1, ABCG1 and ApoE was observed upon Erg treatment. Flow cytometric analysis have revealed a significant increase in the accumulation of ABCA1 upon Erg treatment. Cytotoxicity studies conducted on colorectal cancer cell and normal epithelial cell line showed that these sterols are selectively toxic towards cancer cells. Taken together, our findings suggests that ergosterol activates LXRs, have significant anticancer activity and could be a likely candidate to manage aberrant cholesterol homeostasis.
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Affiliation(s)
- Yogain Taank
- Department of Biochemistry (Sector 25), Panjab University, Chandigarh 160014, India
| | - Vinay Randhawa
- Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Navneet Agnihotri
- Department of Biochemistry (Sector 25), Panjab University, Chandigarh 160014, India.
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2
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Kanneganti J, Mina U, Singh A, Gautam A, Somvanshi P. Anti Mtb Medicinal Plants Database (AMMPDB): A curated database of Indian anti-tubercular medicinal plants. J Ayurveda Integr Med 2023; 14:100712. [PMID: 37120901 PMCID: PMC10172712 DOI: 10.1016/j.jaim.2023.100712] [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: 01/24/2023] [Revised: 02/04/2023] [Accepted: 03/17/2023] [Indexed: 05/02/2023] Open
Abstract
The utilization of medicinal plants for their therapeutic properties has long been a key component of Indian culture. Unique medicinal characteristics can be found in the phytochemicals that are extracted from these plants. Globally, tuberculosis (TB) burden and management are challenged due to the emergence of new resistant strains of Mycobacterium tuberculosis (Mtb). This highlights the importance of new drug molecules from diverse sources as well as their innovative management options. In this context, the present study formulated an Anti Mtb medicinal plant database (AMMPDB Ver. 1.1), a manually curated database of native Indian medicinal plants that reported anti-tubercular (anti-TB) activities and their potential therapeutic phytochemicals. This is the first-ever freely accessible digital repository. The current version of the database provides users, with information regarding 118 native Indian anti-tubercular medicinal plants and their 3374 phytochemicals. The database provides the following information: Taxonomical ID, botanical description, vernacular names, conservation status, geographical distribution maps, IC-50 value, phytochemical details which include - name, Compound ID, Synonyms, location in plant part, 2D, 3D structures (as per the availability), and their medicinal uses reported in the literature. The tools section of the database is equipped with sequentially catalogued and hyperlinked open-access tools utilized for computational drug designing. A case study has been incorporated under the contributors section to validate the tools section and the phytochemicals of the database. AMMPDB Ver 1.1 will be serviceable to research in computational drug designing and discovery with effectiveness and ease. Database URL: https://www.ammpdb.com/.
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Affiliation(s)
| | - Usha Mina
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India.
| | - Ankita Singh
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Anuradha Gautam
- Advanced Instrumentation Research Facility, Jawaharlal Nehru University, New Delhi, India
| | - Pallavi Somvanshi
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
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Randhawa V, Pathania S, Kumar M. Computational Identification of Potential Multitarget Inhibitors of Nipah Virus by Molecular Docking and Molecular Dynamics. Microorganisms 2022; 10:microorganisms10061181. [PMID: 35744699 PMCID: PMC9227315 DOI: 10.3390/microorganisms10061181] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/28/2022] [Accepted: 05/11/2022] [Indexed: 02/04/2023] Open
Abstract
Nipah virus (NiV) is a recently emerged paramyxovirus that causes severe encephalitis and respiratory diseases in humans. Despite the severe pathogenicity of this virus and its pandemic potential, not even a single type of molecular therapeutics has been approved for human use. Considering the role of NiV attachment glycoprotein G (NiV-G), fusion glycoprotein (NiV-F), and nucleoprotein (NiV-N) in virus replication and spread, these are the most attractive targets for anti-NiV drug discovery. Therefore, to prospect for potential multitarget chemical/phytochemical inhibitor(s) against NiV, a sequential molecular docking and molecular-dynamics-based approach was implemented by simultaneously targeting NiV-G, NiV-F, and NiV-N. Information on potential NiV inhibitors was compiled from the literature, and their 3D structures were drawn manually, while the information and 3D structures of phytochemicals were retrieved from the established structural databases. Molecules were docked against NiV-G (PDB ID:2VSM), NiV-F (PDB ID:5EVM), and NiV-N (PDB ID:4CO6) and then prioritized based on (1) strong protein-binding affinity, (2) interactions with critically important binding-site residues, (3) ADME and pharmacokinetic properties, and (4) structural stability within the binding site. The molecules that bind to all the three viral proteins (NiV-G ∩ NiV-F ∩ NiV-N) were considered multitarget inhibitors. This study identified phytochemical molecules RASE0125 (17-O-Acetyl-nortetraphyllicine) and CARS0358 (NA) as distinct multitarget inhibitors of all three viral proteins, and chemical molecule ND_nw_193 (RSV604) as an inhibitor of NiV-G and NiV-N. We expect the identified compounds to be potential candidates for in vitro and in vivo antiviral studies, followed by clinical treatment of NiV.
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Affiliation(s)
- Vinay Randhawa
- Virology Discovery Unit and Bioinformatics Centre, CSIR-Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India; (V.R.); (S.P.)
| | - Shivalika Pathania
- Virology Discovery Unit and Bioinformatics Centre, CSIR-Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India; (V.R.); (S.P.)
| | - Manoj Kumar
- Virology Discovery Unit and Bioinformatics Centre, CSIR-Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India; (V.R.); (S.P.)
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Correspondence: ; Tel.: +91-172-6665453
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Hu W, Yan G, Ding Q, Cai J, Zhang Z, Zhao Z, Lei H, Zhu YZ. Update of Indoles: Promising molecules for ameliorating metabolic diseases. Biomed Pharmacother 2022; 150:112957. [PMID: 35462330 DOI: 10.1016/j.biopha.2022.112957] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/30/2022] [Accepted: 04/11/2022] [Indexed: 11/15/2022] Open
Abstract
Obesity and metabolic disorders have gradually become public health-threatening problems. The metabolic disorder is a cluster of complex metabolic abnormalities which are featured by dysfunction in glucose and lipid metabolism, and results from the increasing prevalence of visceral obesity. With the core driving factor of insulin resistance, metabolic disorder mainly includes type 2 diabetes mellitus (T2DM), micro and macro-vascular diseases, non-alcoholic fatty liver disease (NAFLD), dyslipidemia, and the dysfunction of gut microbiota. Strategies and therapeutic attention are demanded to decrease the high risk of metabolic diseases, from lifestyle changes to drug treatment, especially herbal medicines. Indole is a parent substance of numerous bioactive compounds, and itself can be produced by tryptophan catabolism to stimulate glucagon-like peptide-1 (GLP-1) secretion and inhibit the development of obesity. In addition, in heterocycles drug discovery, the indole scaffold is primarily found in natural compounds with versatile biological activity and plays a prominent role in drug molecules synthesis. In recent decades, plenty of natural or synthesized indole deriviatives have been investigated and elucidated to exert effects on regulating glucose hemeostasis and lipd metabolism. The aim of this review is to trace and emphasize the compounds containing indole scaffold that possess immense potency on preventing metabolic disorders, particularly T2DM, obesity and NAFLD, along with the underlying molecular mechanisms, therefore facilitate a better comprehension of their druggability and application in metabolic diseases.
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Affiliation(s)
- Wei Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Guanyu Yan
- Department of Allergy and Clinical Immunology, National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou, China
| | - Qian Ding
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Jianghong Cai
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Zhongyi Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Ziming Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Heping Lei
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Yi Zhun Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macau, China; Shanghai Key Laboratory of Bioactive Small Molecules, School of Pharmacy, Fudan University, Shanghai, China.
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Grewal AS, Thapa K, Kanojia N, Sharma N, Singh S. Natural Compounds as Source of Aldose Reductase (AR) Inhibitors for the Treatment of Diabetic Complications: A Mini Review. Curr Drug Metab 2021; 21:1091-1116. [PMID: 33069193 DOI: 10.2174/1389200221666201016124125] [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: 05/10/2020] [Revised: 07/07/2020] [Accepted: 07/18/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Aldol reductase (AR) is the polyol pathway's main enzyme that portrays a crucial part in developing 'complications of diabetes' involving cataract, retinopathy, nephropathy, and neuropathy. These diabetic abnormalities are triggered tremendously via aggregation of sorbitol formation (catalyzed by AR) in the polyol pathway. Consequently, it represents an admirable therapeutic target and vast research was done for the discovery of novel molecules as potential AR inhibitors for diabetic complications. OBJECTIVE This review article has been planned to discuss an outline of diabetic complications, AR and its role in diabetic complications, natural compounds reported as AR inhibitors, and benefits of natural/plant derived AR inhibitors for the management of diabetic abnormalities. RESULTS The goal of AR inhibition remedy is to stabilize the increased flux of blood glucose and sorbitol via the 'polyol pathway' in the affected tissues. A variety of synthetic inhibitors of AR have been established such as tolrestat and sorbinil, but both of these face limitations including low permeability and health problems. Pharmaceutical industries and other scientists were also undertaking work to develop newer, active, and 'safe' AR inhibitors from natural sources. Therefore, several naturally found molecules were documented to possess a potent inhibitory action on AR activity. CONCLUSION Natural inhibitors of AR appeared as harmless pharmacological agents for controlling diabetic complications. The detailed literature throughout this article shows the significance of herbal extracts and phytochemicals as prospective useful AR inhibitors in treating diabetic complications.
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Affiliation(s)
- Ajmer Singh Grewal
- Chitkara School of Basic Sciences, Chitkara University, Himachal Pradesh, India
| | - Komal Thapa
- Chitkara School of Basic Sciences, Chitkara University, Himachal Pradesh, India
| | - Neha Kanojia
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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Mei L, Moutet J, Stull SM, Gianetti TL. Synthesis of CF 3-Containing Spirocyclic Indolines via a Red-Light-Mediated Trifluoromethylation/Dearomatization Cascade. J Org Chem 2021; 86:10640-10653. [PMID: 34255497 DOI: 10.1021/acs.joc.1c01313] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A red-light-mediated nPr-DMQA+-catalyzed cascade intramolecular trifluoromethylation and dearomatization of indole derivatives with Umemoto's reagent has been developed. This protocol provides a facile and efficient approach for the construction of functionalized and potentially biologically important CF3-containing 3,3-spirocyclic indolines with moderate to high yields and excellent diastereoselectivities under mild conditions. The success of multiple gram-scale (1 and 10 g) experiments further highlights the robustness and practicality of this protocol and the merit of the employment of red light. Mechanistic studies support the formation of a crucial CF3 radical species and a dearomatized benzyl carbocation intermediate.
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Affiliation(s)
- Liangyong Mei
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Jules Moutet
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Savannah M Stull
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Thomas L Gianetti
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
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Azmi MB, Sultana S, Naeem S, Qureshi SA. In silico investigation on alkaloids of Rauwolfia serpentina as potential inhibitors of 3-hydroxy-3-methyl-glutaryl-CoA reductase. Saudi J Biol Sci 2021; 28:731-737. [PMID: 33424361 PMCID: PMC7783793 DOI: 10.1016/j.sjbs.2020.10.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/20/2020] [Accepted: 10/29/2020] [Indexed: 11/26/2022] Open
Abstract
Present work aimed to investigate the in silico activity of the alkaloids of roots of Rauwolfia serpentina as inhibitors of 3-hydroxy-3-methyl-glutaryl-CoA reductase (HMGCR). For this purpose, the three-dimensional (3D) structure of the protein HMGCR (PDB ID: 1HW9) was downloaded from Protein Data Bank (PDB) database, as a target enzyme. The structures of twelve alkaloids from the roots of R. serpentina were selected as ligands and docked with the selected HMGCR enzyme using Molegro Virtual Docker (MVD) software. The software ‘MVD’ computes the binding (atom) energies of selected protein (enzyme) and each ligand at minimum energetic conformation state by using the PLP (Piecewise Linear Potential) scoring mechanism. Docking results of twelve tested alkaloids showed that five alkaloids including compound 1 (ajmalicine), 2 (reserpine), 3 (indobinine), 4 (yohimbine), and 5 (indobine) have displayed the highest MolDock scores and best fit within the prominent active site residues (positioned between 684 and 692 of cis-loop) of HMGCR. According to the lowest MolDock energies obtained through non-covalent interactions of alkaloids with HMGCR, these are characterized to be the potential inhibitors of HMGCR. Therefore, the alkaloids from R. serpentina can effectively suppress the cholesterol biosynthesis pathway through inhibition of HMGCR and can serve as potential lead compounds for the development of new drugs for the treatment of hyperlipidaemia.
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Affiliation(s)
- Muhammad Bilal Azmi
- Department of Biochemistry, Dow Medical College, Dow University of Health Sciences, Karachi 74200, Pakistan
- Corresponding author.
| | - Saleha Sultana
- Department of Biochemistry, University of Karachi, Karachi 75270, Pakistan
| | - Sadaf Naeem
- Department of Biochemistry, University of Karachi, Karachi 75270, Pakistan
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Finn PW. Cheminformatics in the Identification of Drug Classes for the Treatment of Type 2 Diabetes. Methods Mol Biol 2020; 2076:71-84. [PMID: 31586322 DOI: 10.1007/978-1-4939-9882-1_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Computer-Aided Drug Design has developed into a powerful suite of methods that complement experimental approaches to the identification of new pharmacologically active compounds. In particular, virtual screening has become a standard tool for lead identification. Diverse examples of the application of virtual screening applied to T2DM target proteins have been reported. While several of these indicate successful identification of new lead compounds from synthetic chemical and natural product databases, many of them have been performed on a small scale and with limited validation. Careful study design and collaboration with cheminformaticians and computational chemists will enable these approaches to fulfil their potential for T2DM.
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Affiliation(s)
- Paul W Finn
- School of Computing, University of Buckingham, Buckingham, UK.
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9
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Pathania S, Randhawa V, Kumar M. Identifying potential entry inhibitors for emerging Nipah virus by molecular docking and chemical-protein interaction network. J Biomol Struct Dyn 2019; 38:5108-5125. [DOI: 10.1080/07391102.2019.1696705] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shivalika Pathania
- Virology Unit and Bioinformatics Centre, Institute of Microbial Technology, Council of Scientific & Industrial Research, Chandigarh, India
| | - Vinay Randhawa
- Virology Unit and Bioinformatics Centre, Institute of Microbial Technology, Council of Scientific & Industrial Research, Chandigarh, India
| | - Manoj Kumar
- Virology Unit and Bioinformatics Centre, Institute of Microbial Technology, Council of Scientific & Industrial Research, Chandigarh, India
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Grugel CP, Breit B. Rhodium-Catalyzed Diastereo- and Enantioselective Tandem Spirocyclization/Reduction of 3-Allenylindoles: Access to Functionalized Vinylic Spiroindolines. Org Lett 2019; 21:9672-9676. [PMID: 31769696 DOI: 10.1021/acs.orglett.9b03835] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A highly selective rhodium-catalyzed tandem spirocyclization/reduction of 3-allenylindoles is reported. By employing a Hantzsch ester as reductant, vinylic spiroindolines are obtained in excellent yields as well as diastereo- and enantioselectivity. In addition, the reaction's synthetic utility is highlighted by broad functional group compatibility and exemplified by a gram scale reaction with subsequent assorted transformations.
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Affiliation(s)
- Christian P Grugel
- Institut für Organische Chemie , Albert-Ludwigs-Universität Freiburg , Albertrstr. 21 , 79104 Freiburg , Germany
| | - Bernhard Breit
- Institut für Organische Chemie , Albert-Ludwigs-Universität Freiburg , Albertrstr. 21 , 79104 Freiburg , Germany
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Abdallah F, Lecellier G, Raharivelomanana P, Pichon C. R. nukuhivensis acts by reinforcing skin barrier function, boosting skin immunity and by inhibiting IL-22 induced keratinocyte hyperproliferation. Sci Rep 2019; 9:4132. [PMID: 30858525 PMCID: PMC6411885 DOI: 10.1038/s41598-019-39831-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 01/31/2019] [Indexed: 12/27/2022] Open
Abstract
Rauvolfia nukuhivensis is a well-known plant used for its wide range of beneficial effects in Marquesas islands. It is made up of diverse indole alkaloids and is used as traditional medicine for skin application. The actual mechanism behind the virtue of this plant is still unknown. Hence, in this study we aimed at deciphering the impact of R. nukuhivensis on skin immune system in context of (1) homeostasis, (2) pathogen infection and (3) inflammation. Here we show that R. nukuhivensis enhances cellular metabolic activity and wound healing without inducing cellular stress or disturbing cellular homeostasis. It reinforces the epithelial barrier by up-regulating hBD-1. Nevertheless, in pathogenic stress, R. nukuhivensis acts by preparing the immune system to be reactive and effective directly. Indeed, it enhances the innate immune response by increasing pathogens sensors such as TLR5. Finally, R. nukuhivensis blocks IL-22 induced hyperproliferation via PTEN and Filaggrin up-regulation as well as BCL-2 downregulation. In conclusion, this study provides evidence on the several cutaneous application potentials of R. nukuhivensis such as boosting the immune response or in restoring the integrity of the epithelial barrier.
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Affiliation(s)
- Florence Abdallah
- Centre de Biophysique Moléculaire, CNRS-UPR4301, 45071, Orléans, France
| | - Gaël Lecellier
- Université de Paris-Saclay UVSQ, 55 Avenue de Paris, 78000, Versailles, France
| | - Phila Raharivelomanana
- Université de la Polynésie Française, UMR 241 EIO, 6570 - 98702, Faa'a, Tahiti, Polynésie Française
| | - Chantal Pichon
- Centre de Biophysique Moléculaire, CNRS-UPR4301, 45071, Orléans, France.
- Université d'Orléans, Collegium Sciences et Techniques, 45100, Orléans, France.
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Smeriglio A, Giofrè SV, Galati EM, Monforte MT, Cicero N, D'Angelo V, Grassi G, Circosta C. Inhibition of aldose reductase activity by chemotypes extracts with high content of cannabidiol or cannabigerol. Fitoterapia 2018; 127:101-108. [DOI: 10.1016/j.fitote.2018.02.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/22/2018] [Accepted: 02/03/2018] [Indexed: 11/29/2022]
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13
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Mohammed A, Islam MS. Antioxidant potential of Xylopia aethiopica fruit acetone fraction in a type 2 diabetes model of rats. Biomed Pharmacother 2017; 96:30-36. [DOI: 10.1016/j.biopha.2017.09.116] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 09/08/2017] [Accepted: 09/23/2017] [Indexed: 12/16/2022] Open
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Patil KK, Gacche RN. Inhibition of glycation and aldose reductase activity using dietary flavonoids: A lens organ culture studies. Int J Biol Macromol 2017; 98:730-738. [DOI: 10.1016/j.ijbiomac.2017.01.129] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 01/16/2017] [Accepted: 01/30/2017] [Indexed: 12/01/2022]
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15
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Aristatile B, Alshammari GM. In vitro biocompatibility and proliferative effects of polar and non-polar extracts of cucurbita ficifolia on human mesenchymal stem cells. Biomed Pharmacother 2017; 89:215-220. [PMID: 28231542 DOI: 10.1016/j.biopha.2017.02.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/06/2017] [Accepted: 02/08/2017] [Indexed: 11/19/2022] Open
Abstract
Cucurbita ficifolia (C. ficifolia) has been traditionally known for its medicinal properties as an antioxidant, anti-diabetic and anti-inflammatory agent. However, there has been an enduring attention towards the identification of unique method, to isolate the natural components for therapeutic applications. Our study focuses on different polar and non-polar solvents (methanol, hexane and chloroform) to extract the bioactive components from C. ficifolia (pumpkin) and to study the biocompatibility and cytotoxicity effects on human bone marrow-mesenchymal stem cells (hBM-MSCs). The extracts were screened for their effects on cytotoxicity, cell proliferation and cell cycle on the hBM-MSCs cell line. The assays demonstrated that the chloroform extract was highly biocompatible, with less cytotoxic effect, and enhanced the cell proliferation. The methanol extract did not exhibit significant cytotoxicity when compare to the control. Concordantly, the cell cycle analysis confirmed that chloroform extract enhances the proliferation at lower concentrations. On the other hand, hexane extract showed high level of cytotoxicity with apoptotic and necrotic changes in hBM-MSCs. Collectively, our data revealed that chloroform is a good candidate to extract the bioactive components from C. ficifolia. Furthermore, our results suggest that specific gravity and density of the solvent might play a crucial role in the extraction process, which warrants further investigations.
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Affiliation(s)
- Balakrishnan Aristatile
- Department of Food Science and Nutrition, College of Food and Agricultural Science, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Ghedeir M Alshammari
- Department of Food Science and Nutrition, College of Food and Agricultural Science, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia.
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16
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Amin MM, Arbid MS. Estimation of ellagic acid and/or repaglinide effects on insulin signaling, oxidative stress, and inflammatory mediators of liver, pancreas, adipose tissue, and brain in insulin resistant/type 2 diabetic rats. Appl Physiol Nutr Metab 2017; 42:181-192. [DOI: 10.1139/apnm-2016-0429] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Even though ellagic acid has previously been valued in many models of cancer, so far its full mechanistic effect as a natural antiapoptotic agent in the prevention of type 2 diabetes complications has not been completely elucidated, which was the goal of this study. We fed albino rats a high-fat fructose diet (HFFD) for 2 months to induce insulin resistance/type 2 diabetes and then treated the rats with ellagic acid (10 mg/kg body weight, orally) and/or repaglinide (0.5 mg/kg body weight, orally) for 2 weeks. At the serum level, ellagic acid challenged the consequences of HFFD, significantly improving the glucose/insulin balance, liver enzymes, lipid profile, inflammatory cytokines, redox level, adipokines, ammonia, and manganese. At the tissue level (liver, pancreas, adipose tissue, and brain), ellagic acid significantly enhanced insulin signaling, autophosphorylation, adiponectin receptors, glucose transporters, inflammatory mediators, and apoptotic markers. Remarkably, combined treatment with both ellagic acid and repaglinide had a more pronounced effect than treatment with either alone. These outcomes give new insight into the promising molecular mechanisms by which ellagic acid modulates numerous factors induced in the progression of diabetes.
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Affiliation(s)
- Mohamed M. Amin
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
| | - Mahmoud S. Arbid
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
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Kumari I, Ahmed M, Akhter Y. Deciphering the protein translation inhibition and coping mechanism of trichothecene toxin in resistant fungi. Int J Biochem Cell Biol 2016; 78:370-376. [DOI: 10.1016/j.biocel.2016.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 07/29/2016] [Accepted: 08/02/2016] [Indexed: 01/16/2023]
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Scale-Up of Agrobacterium rhizogenes-Mediated Hairy Root Cultures of Rauwolfia serpentina: A Persuasive Approach for Stable Reserpine Production. Methods Mol Biol 2016. [PMID: 27108322 DOI: 10.1007/978-1-4939-3332-7_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Roots of Rauwolfia serpentina, also known as "Sarpagandha" possess high pharmaceutical value due to the presence of reserpine and other medicinally important terpene indole alkaloids. Ever increasing commercial demand of R. serpentina roots is the major reason behind the unsystematic harvesting and fast decline of the species from its natural environment. Considering Agrobacterium rhizogenes-mediated hairy root cultures as an alternative source for the production of plant-based secondary metabolites, the present optimized protocol offers a commercially feasible method for the production of reserpine, the most potent alkaloid from R. serpentina roots. This end-to-end protocol presents the establishment of hairy root culture from the leaf explants of R. serpentina through the infection of A. rhizogenes strain A4 in liquid B5 culture medium and its up-scaling in a 5 L bench top, mechanically agitated bioreactor. The transformed nature of roots was confirmed through PCR-based rol A gene amplification in genomic DNA of putative hairy roots. The extraction and quantification of reserpine in bioreactor grown roots has been done using monolithic reverse phase high-performance liquid chromatography (HPLC).
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Mossoba ME, Flynn TJ, Vohra S, Wiesenfeld PL, Sprando RL. Human kidney proximal tubule cells are vulnerable to the effects of Rauwolfia serpentina. Cell Biol Toxicol 2016; 31:285-93. [PMID: 26838987 DOI: 10.1007/s10565-016-9311-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 01/15/2016] [Indexed: 11/25/2022]
Abstract
Rauwolfia serpentina (or Snake root plant) is a botanical dietary supplement marketed in the USA for maintaining blood pressure. Very few studies have addressed the safety of this herb, despite its wide availability to consumers. Its reported pleiotropic effects underscore the necessity for evaluating its safety. We used a human kidney cell line to investigate the possible negative effects of R. serpentina on the renal system in vitro, with a specific focus on the renal proximal tubules. We evaluated cellular and mitochondrial toxicity, along with a variety of other kidney-specific toxicology biomarkers. We found that R. serpentina was capable of producing highly detrimental effects in our in vitro renal cell system. These results suggest more studies are needed to investigate the safety of this dietary supplement in both kidney and other target organ systems.
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Affiliation(s)
- Miriam E Mossoba
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA.
- MOD-1 Laboratories, US FDA, 8301 Muirkirk Rd., HFS-025, Lab 1406, Laurel, MD, 20708, USA.
| | - Thomas J Flynn
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA
| | - Sanah Vohra
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA
| | - Paddy L Wiesenfeld
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA
| | - Robert L Sprando
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA
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20
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Pathania S, Bagler G, Ahuja PS. Differential Network Analysis Reveals Evolutionary Complexity in Secondary Metabolism of Rauvolfia serpentina over Catharanthus roseus. FRONTIERS IN PLANT SCIENCE 2016; 7:1229. [PMID: 27588023 PMCID: PMC4988974 DOI: 10.3389/fpls.2016.01229] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 08/02/2016] [Indexed: 05/07/2023]
Abstract
Comparative co-expression analysis of multiple species using high-throughput data is an integrative approach to determine the uniformity as well as diversification in biological processes. Rauvolfia serpentina and Catharanthus roseus, both members of Apocyanacae family, are reported to have remedial properties against multiple diseases. Despite of sharing upstream of terpenoid indole alkaloid pathway, there is significant diversity in tissue-specific synthesis and accumulation of specialized metabolites in these plants. This led us to implement comparative co-expression network analysis to investigate the modules and genes responsible for differential tissue-specific expression as well as species-specific synthesis of metabolites. Toward these goals differential network analysis was implemented to identify candidate genes responsible for diversification of metabolites profile. Three genes were identified with significant difference in connectivity leading to differential regulatory behavior between these plants. These genes may be responsible for diversification of secondary metabolism, and thereby for species-specific metabolite synthesis. The network robustness of R. serpentina, determined based on topological properties, was also complemented by comparison of gene-metabolite networks of both plants, and may have evolved to have complex metabolic mechanisms as compared to C. roseus under the influence of various stimuli. This study reveals evolution of complexity in secondary metabolism of R. serpentina, and key genes that contribute toward diversification of specific metabolites.
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Affiliation(s)
- Shivalika Pathania
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Council of Scientific and Industrial ResearchPalampur, India
- *Correspondence: Shivalika Pathania
| | - Ganesh Bagler
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Council of Scientific and Industrial ResearchPalampur, India
- Center for Computational Biology, Indraprastha Institute of Information Technology Delhi (IIIT-Delhi)New Delhi, India
- Centre for Biologically Inspired System Science, Indian Institute of Technology JodhpurJodhpur, India
- Dhirubhai Ambani Institute of Information and Communication TechnologyGandhinagar, India
- Ganesh Bagler
| | - Paramvir S. Ahuja
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Council of Scientific and Industrial ResearchPalampur, India
- Indian Institute of Science Education and Research (IISER) MohaliMohali, India
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Wu F, Kerčmar P, Zhang C, Stöckigt J. Sarpagan-Ajmalan-Type Indoles: Biosynthesis, Structural Biology, and Chemo-Enzymatic Significance. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2015; 76:1-61. [PMID: 26827882 DOI: 10.1016/bs.alkal.2015.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The biosynthetic pathway of the monoterpenoid indole alkaloid ajmaline in the genus Rauvolfia, in particular Rauvolfia serpentina Benth. ex Kurz, is one of the few pathways that have been comprehensively uncovered. Every step in the progress of plant alkaloid biosynthesis research is due to the endeavors of several generations of scientists and the advancement of technologies. The tissue and cell suspension cultures developed in the 1970s by M.H. Zenk enabled the extraction of alkaloids and crude enzymes for use as experimental materials, thus establishing the foundation for further research on enzymatic reaction networks. In vivo NMR technology was first used in biosynthetic investigations in the 1990s following the invention of high-field cryo-NMR, which allowed the rapid and reliable detection of bioconversion processes within living plant cells. Shortly before, in 1988, a milestone was reached with the heterologous expression of the strictosidine synthase cDNA, which paved the way for the application of "reverse genetics" and "macromolecular crystallography." Both methods allowed the structural analysis of several Rauvolfia enzymes involved in ajmaline biosynthesis and expanded our knowledge of the enzyme mechanisms, substrate specificities, and structure-activity relationships. It also opened the door for rational enzyme engineering and metabolic steering. Today, the research focus of ajmaline biosynthesis is shifting from "delineation" to "utilization." The Pictet-Spenglerase strictosidine synthase, strictosidine glucosidase, together with raucaffricine glucosidase, as pioneers in this area, have become useful tools to generate "privileged structures" and "diversity oriented" syntheses, which may help to construct novel scaffolds and to set up libraries of sarpagan-ajmalan-type alkaloids in chemo-enzymatic approaches.
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Affiliation(s)
- Fangrui Wu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, P.R. China; Department of Pharmacology, Baylor College of Medicine, Houston, TX, USA
| | | | - Chenggui Zhang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, P.R. China
| | - Joachim Stöckigt
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, P.R. China; College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China
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Wu J, Lu C, Li X, Fang H, Wan W, Yang Q, Sun X, Wang M, Hu X, Chen CYO, Wei X. Synthesis and Biological Evaluation of Novel Gigantol Derivatives as Potential Agents in Prevention of Diabetic Cataract. PLoS One 2015; 10:e0141092. [PMID: 26517726 PMCID: PMC4627826 DOI: 10.1371/journal.pone.0141092] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 10/05/2015] [Indexed: 11/25/2022] Open
Abstract
As a continuation of our efforts directed towards the development of natural anti-diabetic cataract agents, gigantol was isolated from Herba dendrobii and was found to inhibit both aldose reductase (AR) and inducible nitric oxide synthase (iNOS) activity, which play a significant role in the development and progression of diabetic cataracts. To improve its bioefficacy and facilitate use as a therapeutic agent, gigantol (compound 14f) and a series of novel analogs were designed and synthesized. Analogs were formulated to have different substituents on the phenyl ring (compounds 4, 5, 8, 14a-e), substitute the phenyl ring with a larger steric hindrance ring (compounds 10, 17c) or modify the carbon chain (compounds 17a, 17b, 21, 23, 25). All of the analogs were tested for their effect on AR and iNOS activities and on D-galactose-induced apoptosis in cultured human lens epithelial cells. Compounds 5, 10, 14a, 14b, 14d, 14e, 14f, 17b, 17c, 23, and 25 inhibited AR activity, with IC50 values ranging from 5.02 to 288.8 μM. Compounds 5, 10, 14b, and 14f inhibited iNOS activity with IC50 ranging from 432.6 to 1188.7 μM. Compounds 5, 8, 10, 14b, 14f, and 17c protected the cells from D-galactose induced apoptosis with viability ranging from 55.2 to 76.26%. Of gigantol and its analogs, compound 10 showed the greatest bioefficacy and is warranted to be developed as a therapeutic agent for diabetic cataracts.
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Affiliation(s)
- Jie Wu
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Chuanjun Lu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
- Institute of Drug Synthesis and Pharmaceutical Processing, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xue Li
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Hua Fang
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Wencheng Wan
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Qiaohong Yang
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Xiaosheng Sun
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Meiling Wang
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Xiaohong Hu
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - C.-Y. Oliver Chen
- Antioxidants Research Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, 02111, United States of America
| | - Xiaoyong Wei
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
- Antioxidants Research Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, 02111, United States of America
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Pathania S, Ramakrishnan SM, Bagler G. Phytochemica: a platform to explore phytochemicals of medicinal plants. DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION 2015; 2015:bav075. [PMID: 26255307 PMCID: PMC4529746 DOI: 10.1093/database/bav075] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 07/07/2015] [Indexed: 11/18/2022]
Abstract
Plant-derived molecules (PDMs) are known to be a rich source of diverse scaffolds that could serve as the basis for rational drug design. Structured compilation of phytochemicals from traditional medicinal plants can facilitate prospection for novel PDMs and their analogs as therapeutic agents. Atropa belladonna, Catharanthus roseus, Heliotropium indicum, Picrorhiza kurroa and Podophyllum hexandrum are important Himalayan medicinal plants, reported to have immense therapeutic properties against various diseases. We present Phytochemica, a structured compilation of 963 PDMs from these plants, inclusive of their plant part source, chemical classification, IUPAC names, SMILES notations, physicochemical properties and 3-dimensional structures with associated references. Phytochemica is an exhaustive resource of natural molecules facilitating prospection for therapeutic molecules from medicinally important plants. It also offers refined search option to explore the neighbourhood of chemical space against ZINC database to identify analogs of natural molecules at user-defined cut-off. Availability of phytochemical structured dataset may enable their direct use in in silico drug discovery which will hasten the process of lead identification from natural products under proposed hypothesis, and may overcome urgent need for phytomedicines. Compilation and accessibility of indigenous phytochemicals and their derivatives can be a source of considerable advantage to research institutes as well as industries. Database URL: home.iitj.ac.in/∼bagler/webservers/Phytochemica
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Affiliation(s)
- Shivalika Pathania
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Council of Scientific and Industrial Research, Palampur, Himachal Pradesh, India
| | - Sai Mukund Ramakrishnan
- Centre for Biologically Inspired Systems Science, Indian Institute of Technology Jodhpur, India and
| | - Ganesh Bagler
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Council of Scientific and Industrial Research, Palampur, Himachal Pradesh, India, Centre for Biologically Inspired Systems Science, Indian Institute of Technology Jodhpur, India and Academy of Scientific & Innovative Research (AcSIR), New Delhi, India
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24
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Pathania S, Ramakrishnan SM, Randhawa V, Bagler G. SerpentinaDB: a database of plant-derived molecules of Rauvolfia serpentina. Altern Ther Health Med 2015; 15:262. [PMID: 26238452 PMCID: PMC4523024 DOI: 10.1186/s12906-015-0683-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 05/20/2015] [Indexed: 11/10/2022]
Abstract
BACKGROUND Plant-derived molecules (PDMs) are known to be a rich source of diverse scaffolds that could serve as a basis for rational drug design. Structured compilation of phytochemicals from traditional medicinal plants can facilitate prospection for novel PDMs and their analogs as therapeutic agents. Rauvolfia serpentina is an important medicinal plant, endemic to Himalayan mountain ranges of Indian subcontinent, reported to be of immense therapeutic value against various diseases. DESCRIPTION We present SerpentinaDB, a structured compilation of 147 R. serpentina PDMs, inclusive of their plant part source, chemical classification, IUPAC, SMILES, physicochemical properties, and 3D chemical structures with associated references. It also provides refined search option for identification of analogs of natural molecules against ZINC database at user-defined cut-off. CONCLUSION SerpentinaDB is an exhaustive resource of R. serpentina molecules facilitating prospection for therapeutic molecules from a medicinally important source of natural products. It also provides refined search option to explore the neighborhood of chemical space against ZINC database to identify analogs of natural molecules obtained as leads. In a previous study, we have demonstrated the utility of this resource by identifying novel aldose reductase inhibitors towards intervention of complications of diabetes.
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Giménez-Dejoz J, Kolář MH, Ruiz FX, Crespo I, Cousido-Siah A, Podjarny A, Barski OA, Fanfrlík J, Parés X, Farrés J, Porté S. Substrate Specificity, Inhibitor Selectivity and Structure-Function Relationships of Aldo-Keto Reductase 1B15: A Novel Human Retinaldehyde Reductase. PLoS One 2015; 10:e0134506. [PMID: 26222439 PMCID: PMC4519324 DOI: 10.1371/journal.pone.0134506] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 07/09/2015] [Indexed: 02/02/2023] Open
Abstract
Human aldo-keto reductase 1B15 (AKR1B15) is a newly discovered enzyme which shares 92% amino acid sequence identity with AKR1B10. While AKR1B10 is a well characterized enzyme with high retinaldehyde reductase activity, involved in the development of several cancer types, the enzymatic activity and physiological role of AKR1B15 are still poorly known. Here, the purified recombinant enzyme has been subjected to substrate specificity characterization, kinetic analysis and inhibitor screening, combined with structural modeling. AKR1B15 is active towards a variety of carbonyl substrates, including retinoids, with lower kcat and Km values than AKR1B10. In contrast to AKR1B10, which strongly prefers all-trans-retinaldehyde, AKR1B15 exhibits superior catalytic efficiency with 9-cis-retinaldehyde, the best substrate found for this enzyme. With ketone and dicarbonyl substrates, AKR1B15 also shows higher catalytic activity than AKR1B10. Several typical AKR inhibitors do not significantly affect AKR1B15 activity. Amino acid substitutions clustered in loops A and C result in a smaller, more hydrophobic and more rigid active site in AKR1B15 compared with the AKR1B10 pocket, consistent with distinct substrate specificity and narrower inhibitor selectivity for AKR1B15.
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Affiliation(s)
- Joan Giménez-Dejoz
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Michal H. Kolář
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
- Institute of Neuroscience and Medicine (INM-9) and Institute for Advanced Simulation (IAS-5), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Francesc X. Ruiz
- Department of Integrative Structural Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire-Centre de Biologie Intégrative, CNRS, INSERM, UdS, Illkirch CEDEX, France
| | - Isidro Crespo
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Alexandra Cousido-Siah
- Department of Integrative Structural Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire-Centre de Biologie Intégrative, CNRS, INSERM, UdS, Illkirch CEDEX, France
| | - Alberto Podjarny
- Department of Integrative Structural Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire-Centre de Biologie Intégrative, CNRS, INSERM, UdS, Illkirch CEDEX, France
| | - Oleg A. Barski
- Diabetes and Obesity Center, School of Medicine, University of Louisville, Louisville, Kentucky, United States of America
| | - Jindřich Fanfrlík
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Xavier Parés
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Jaume Farrés
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Sergio Porté
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
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Martin NJ, Ferreiro SF, Barbault F, Nicolas M, Lecellier G, Paetz C, Gaysinski M, Alonso E, Thomas OP, Botana LM, Raharivelomanana P. Indole alkaloids from the Marquesan plant Rauvolfia nukuhivensis and their effects on ion channels. PHYTOCHEMISTRY 2015; 109:84-95. [PMID: 25468537 DOI: 10.1016/j.phytochem.2014.10.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 10/12/2014] [Accepted: 10/20/2014] [Indexed: 06/04/2023]
Abstract
In addition to the already reported nukuhivensiums 1 and 2, 11 indole alkaloids were isolated from the bark of the plant Rauvolfia nukuhivensis, growing in the Marquesas archipelago. The known sandwicine (3), isosandwicine (4), spegatrine (8), lochneram (9), flavopereirine (13) have been found in this plant together with the norsandwicine (5), isonorsandwicine (6), Nb-methylisosandwicine (7), 10-methoxypanarine (10), nortueiaoine (11), tueiaoine (12). The structure elucidation was performed on the basis of a deep exploration of the NMR and HRESIMS data as well as comparison with literature data for similar compounds. Norsandwicine, 10-methoxypanarine, tueiaoine, and more importantly nukuhivensiums, were shown to significantly induce a reduction of IKr amplitude (HERG current). Molecular modelling through docking was performed in order to illustrate this result.
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Affiliation(s)
- Nicolas J Martin
- Laboratoire EIMS UMR 241 EIO, Université de la Polynésie française, BP 6570, 98702 Faa'a, Tahiti, French Polynesia.
| | - Sara F Ferreiro
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain.
| | - Florent Barbault
- Laboratoire ITODYS UMR CNRS 7086, Université Paris Diderot, Sorbonne Paris Cité, 15 rue J.-A. de Baïf, 75013 Paris, France.
| | - Mael Nicolas
- Laboratoire EIMS UMR 241 EIO, Université de la Polynésie française, BP 6570, 98702 Faa'a, Tahiti, French Polynesia.
| | - Gaël Lecellier
- Université de Versailles Saint Quentin en Yvelines, 55 Avenue des Etats-Unis, 78035 Versailles Cedex, France; Laboratoire d'Excellence "CORAIL" - Centre de Recherches Insulaires et Observatoire de l'Environnement (CRIOBE), BP 1013 - 98729, Papetoai, Moorea, French Polynesia.
| | - Christian Paetz
- MPI for Chemical Ecology, Hans-Knöll-Strasse 8, 07745 Jena, Germany.
| | - Marc Gaysinski
- Institut de Chimie de Nice-PCRE, UMR 7272 CNRS, Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice, France.
| | - Eva Alonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain.
| | - Olivier P Thomas
- Institut de Chimie de Nice-PCRE, UMR 7272 CNRS, Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice, France; Institut Méditerranéen de Biodiversité et d́Ecologie marine et continentale, UMR 7263 CNRS - IRD - Aix-Marseille Université - UAPV, Station Marine d́Endoume, Rue de la Batterie des Lions, 13007 Marseille, France.
| | - Luis M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain.
| | - Phila Raharivelomanana
- Laboratoire EIMS UMR 241 EIO, Université de la Polynésie française, BP 6570, 98702 Faa'a, Tahiti, French Polynesia.
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Randhawa V, Kumar Singh A, Acharya V. A systematic approach to prioritize drug targets using machine learning, a molecular descriptor-based classification model, and high-throughput screening of plant derived molecules: a case study in oral cancer. MOLECULAR BIOSYSTEMS 2015; 11:3362-77. [DOI: 10.1039/c5mb00468c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Network-based and cheminformatics approaches identify novel lead molecules forCXCR4, a key gene prioritized in oral cancer.
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Affiliation(s)
- Vinay Randhawa
- Functional Genomics and Complex Systems Laboratory
- Biotechnology Division
- CSIR-Institute of Himalayan Bioresource Technology
- Council of Scientific and Industrial Research
- Palampur
| | - Anil Kumar Singh
- Biotechnology Division
- CSIR-Institute of Himalayan Bioresource Technology
- Council of Scientific and Industrial Research
- Palampur
- India
| | - Vishal Acharya
- Functional Genomics and Complex Systems Laboratory
- Biotechnology Division
- CSIR-Institute of Himalayan Bioresource Technology
- Council of Scientific and Industrial Research
- Palampur
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28
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Mehrotra S, Goel MK, Srivastava V, Rahman LU. Hairy root biotechnology of Rauwolfia serpentina: a potent approach for the production of pharmaceutically important terpenoid indole alkaloids. Biotechnol Lett 2014; 37:253-63. [DOI: 10.1007/s10529-014-1695-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Accepted: 10/03/2014] [Indexed: 12/19/2022]
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Quan H, Gao Y, Zhang H, Fang T, Chen D, Lv Z, Chen Y. Exenatide enhances INS-1 rat pancreatic β‑cell mass by increasing the protein levels of adiponectin and reducing the levels of C-reactive protein. Mol Med Rep 2014; 10:2447-52. [PMID: 25190495 DOI: 10.3892/mmr.2014.2538] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 05/16/2014] [Indexed: 11/06/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a complex and heterogeneous disorder affecting >220 million individuals worldwide; this is projected to reach 366 million by 2030. Exenatide, a long‑acting glucagon‑like peptide 1 receptor agonist, exhibits potential in the treatment of T2MD due to its ability to increase β‑cell mass. However, the molecular mechanism by which exenatide increases β‑cell mass is yet to be elucidated. Exenatide function was explored in the INS‑1 rat pancreatic β‑cell line. Exenatide was found to increase adiponectin protein levels by 20% (P<0.05 versus the control group) and reduce the level of C‑reactive protein (CRP) by 50% (P<0.01 versus the control group) in INS‑1 cells, resulting in an increase in the INS‑1 rat pancreatic β‑cell mass by 20% (P<0.01 versus the control group). These findings suggest that exenatide may ameliorate T2DM by increasing adiponectin protein levels and reducing the level of CRP.
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Affiliation(s)
- Huibiao Quan
- Department of Endocrinology, People's Hospital of Hainan Province, Haikou, Hainan 570311, P.R. China
| | - Yongyi Gao
- Department of Endocrinology, People's Hospital of Hainan Province, Haikou, Hainan 570311, P.R. China
| | - Huachuan Zhang
- Department of Endocrinology, People's Hospital of Hainan Province, Haikou, Hainan 570311, P.R. China
| | - Tuanyu Fang
- Department of Endocrinology, People's Hospital of Hainan Province, Haikou, Hainan 570311, P.R. China
| | - Daoxiong Chen
- Department of Endocrinology, People's Hospital of Hainan Province, Haikou, Hainan 570311, P.R. China
| | - Zhaohui Lv
- Department of Endocrinology, People's Hospital of Hainan Province, Haikou, Hainan 570311, P.R. China
| | - Yanming Chen
- Department of Endocrinology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510630, P.R. China
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Janero DR. Relieving the cardiometabolic disease burden: a perspective on phytometabolite functional and chemical annotation for diabetes management. Expert Opin Pharmacother 2013; 15:5-10. [PMID: 24156826 DOI: 10.1517/14656566.2014.852538] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Type 2 diabetes (T2D) is both a complex, multifactorial disease state and an unsolved, intensifying public-health problem. To help reduce disease burden, some T2D patients have embraced plant-derived substances for use with - if not in place of - prescription medicines, a trend based mainly upon historical precedent and anecdotal observations of human health benefit. Preclinical research has emphasized phytometabolite interactions with purported T2D pathogenic targets and the effects of botanical preparations on experimental T2D symptomology as induced in laboratory animals. More holistic, systems-oriented profiling of phytochemicals with functional-biology, omics, and chemical-fingerprinting tools now appears necessary to increase our appreciation of phytometabolite actions potentially beneficial to the T2D patient. The resultant, multidimensional view of phytometabolite pharmacology should help provide a more rational basis for evaluating the potential of natural plant products as T2D pharmacotherapy. Such information may also help substantiate and legitimize (pre)clinical demonstrations of phytochemical health benefits, advance our understanding of T2D pathogenesis, and offer scope for better T2D medicines. Public-private partnerships are invoked for conducting this research with the ultimate aim of improving the global cardiometabolic profile.
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Affiliation(s)
- David R Janero
- Northeastern University, Bouvé College of Health Sciences, Center for Drug Discovery, Department of Pharmaceutical Sciences, Health Sciences Entrepreneurs , 360 Huntington Avenue, 116 Mugar Life Sciences Hall, Boston, MA 02115-5000 , USA +1 617 373 2208 ; +1 617 373 7493 ;
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