1
|
Wu X, Hu S, Jia N, Zhang C, Liu C, Song J, Kuai L, Jiang W, Li B, Chen Q. Accurate network pharmacology and novel ingredients formula of herbal targeting estrogen signaling for psoriasis intervention. JOURNAL OF ETHNOPHARMACOLOGY 2024; 329:118099. [PMID: 38554853 DOI: 10.1016/j.jep.2024.118099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/13/2024] [Accepted: 03/21/2024] [Indexed: 04/02/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE As a common chronic inflammatory skin disease, psoriasis is incompletely understood and brings a lot of distress to patients. The estrogen signaling pathway has been implicated in its pathogenesis, making it a potential therapeutic target. Si Cao Formula (SCF) has demonstrated promise in treating psoriasis clinically. However, its molecular mechanisms concerning psoriasis remain largely unexplored. AIM OF THE STUDY To elucidate the underlying mechanisms of the action of SCF on psoriasis. MATERIALS AND METHODS Active ingredients were identified by LC-MS/MS. After the treatment with SCF, the exploration of differentially expressed proteins (DEPs) were conducted using tandem mass tag (TMT)-based quantitative proteomics analysis. By GO/KEGG, WikiPathways and network pharmacology, core signaling pathway and protein targets were explored. Consequently, major signaling pathway and protein targets were validated by RT-qPCR, immunoblotting and immunofluorescence. Based on Lipinski's Rule of Five rules and molecular docking, 8 active compounds were identified that acted on the core targets. RESULTS 41 compounds of SCF and 848 specific targets of these compounds were identified. There were 570 DEPs between IMQ (Imiquimod) and IMQ + SCF group, including 279 up-regulated and 304 down-regulated proteins. GO/KEGG, WikiPathways and network pharmacology revealed estrogen signaling pathway as the paramount pathways, through which SCF functioned on psoriasis. We further show novel ingredients formula of SCF contributes to estrogen signaling intervention, including liquiritin, parvisoflavone B, glycycoumarin, 8-prenylluteone, licochalcone A, licochalcone B, oxymatrine, and 13-Hydroxylupanine, where targeting MAP2K1, ILK, HDAC1 and PRKACA, respectively. Molecular docking proves that they have good binding properties. CONCLUSION Our results provide an in-depth view of psoriasis pathogenesis and herbal intervention, which expands our understanding of the systemic pharmacology to reveal the multiple ingredients and multiple targets of SCF and focus on one pathway (estrogen signaling pathway) may be a novel therapeutic strategy for psoriasis treatment of herbal medicine.
Collapse
Affiliation(s)
- Xinxin Wu
- Central Laboratory, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Sheng Hu
- Central Laboratory, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Ning Jia
- Central Laboratory, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Caiyun Zhang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Changya Liu
- Central Laboratory, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Jiankun Song
- Central Laboratory, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Le Kuai
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Wencheng Jiang
- Central Laboratory, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China.
| | - Bin Li
- Central Laboratory, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China.
| | - Qilong Chen
- Central Laboratory, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China.
| |
Collapse
|
2
|
Susilawati E, Levita J, Susilawati Y, Sumiwi SA. Pharmacology activity, toxicity, and clinical trials of Erythrina genus plants (Fabaceae): an evidence-based review. Front Pharmacol 2023; 14:1281150. [PMID: 38044940 PMCID: PMC10690608 DOI: 10.3389/fphar.2023.1281150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/31/2023] [Indexed: 12/05/2023] Open
Abstract
The concept of using plants to alleviate diseases is always challenging. In West Java, Indonesia, a local plant, named dadap serep has been traditionally used to reduce blood glucose, fever, and edema, by pounding the leaves and applying them on the inflamed skin, or boiled and consumed as herbal tea. This plant belongs to the Erythrina genus, which covers approximately 120 species. The scope of this review (1943-2023) is related to the Global Development Goals, in particular Goal 3: Good Health and Wellbeing, by focusing on the pharmacology activity, toxicity, and clinical trials of Erythrina genus plants and their metabolites, e.g., pterocarpans, alkaloids, and flavonoids. Articles were searched on PubMed and ScienceDirect databases, using "Erythrina" AND "pharmacology activity" keywords, and only original articles written in English and open access were included. In vitro and in vivo studies reveal promising results, particularly for antibacterial and anticancer activities. The toxicity and clinical studies of Erythrina genus plants are limitedly reported. Considering that extensive caution should be taken when prescribing botanical drugs for patients parallelly taking a narrow therapeutic window drug, it is confirmed that no interactions of the Erythrina genus were recorded, indicating the safety of the studied plants. We, therefore, concluded that Erythrina genus plants are promising to be further explored for their effects in various signaling pathways as future plant-based drug candidates.
Collapse
Affiliation(s)
- Elis Susilawati
- Doctoral Program in Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, Indonesia
- Faculty of Pharmacy, Bhakti Kencana University, Bandung, Indonesia
| | - Jutti Levita
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, Indonesia
| | - Yasmiwar Susilawati
- Department of Biology Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, Indonesia
| | - Sri Adi Sumiwi
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, Indonesia
| |
Collapse
|
3
|
Liu CY, Deng P, Wang B, Liu AH, Wang MG, Li SW, Chen LL, Mao SC. Coumaronochromones, flavanones, and isoflavones from the twigs and leaves of Erythrina subumbrans inhibit PTP1B and nitric oxide production. PHYTOCHEMISTRY 2023; 206:113550. [PMID: 36481312 DOI: 10.1016/j.phytochem.2022.113550] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/26/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
A chemical investigation of the twigs and leaves of Erythrina subumbrans led to the isolation and structural elucidation of three coumaronochromones, erythrinasubumbrin A and (±)-erythrinasubumbrin B, five prenylated flavanones, (±)-erythrinasubumbrin C and erythrinasubumbrins D-F, and two prenylated isoflavones, (±)-5,4'-dihydroxy-[4,5-cis-4-ethoxy-5-hydroxy-6,6-dimethyl-4,5-dihydropyrano (2,3:7,6)]-isoflavone, in addition to 18 known analogues. Two extra cinnamylphenols previously only known as commercial synthetic products were also isolated and elucidated from a natural source for the first time, and assigned the trivial names erythrinasubumbrins G and H. Their structures were characterized by detailed analysis of spectroscopic data, including HRESIMS and 2D NMR. The absolute configurations of the previously undescribed isolates and the known coumaronochromone lupinol C were determined by specific rotation and electronic circular dichroism (ECD) data. All the isolates were evaluated for their inhibitory activities on protein tyrosine phosphatase 1 B (PTP1B) and nitric oxide (NO) production in lipopolysaccharide (LPS)-induced BV-2 microglial cells as well as their cytotoxicity against the HCT116 cell line. The pair of enantiomers, (+)-5,4'-dihydroxy-[4,5-cis-4-ethoxy-5-hydroxy-6,6-dimethyl-4,5-dihydropyrano (2,3:7,6)]-isoflavone and (-)-5,4'-dihydroxy-[4,5-cis-4-ethoxy-5-hydroxy-6,6-dimethyl-4,5-dihydropyrano (2,3:7,6)]-isoflavone, and the known compounds lupinol C, 4'-O-methyl-8-prenylnaringenin, glepidotin B, shuterin, parvisoflavones A, luteone, lupiwighteone, 2,3-dehydrokievitone, 6,8-diprenylgenistein, angustone A, and 2'-O-demethylbidwillol B exhibited different levels of PTP1B inhibitory activities with IC50 values ranging from 3.21 to 19.17 μM, while erythrinasubumbrin A, (-)-erythrinasubumbrin B, (+)-5,4'-dihydroxy-[4,5-cis-4-ethoxy-5-hydroxy-6,6-dimethyl-4,5-dihydropyrano (2,3:7,6)]-isoflavone, (-)-5,4'-dihydroxy-[4,5-cis-4-ethoxy-5-hydroxy-6,6-dimethyl-4,5-dihydropyrano (2,3:7,6)]-isoflavone, and the known compounds lupinol C, 8-prenylnaringenin, macatrichocarpin A, alpinumisoflavone, and 2'-O-demethylbidwillol B substantially inhibited NO production in BV-2 microglial cells. In addition, 8-prenylnaringenin showed weak cytotoxicity with an IC50 value of 9.13 μM. This is the first report of PTP1B inhibitory activity for a coumaronochromone.
Collapse
Affiliation(s)
- Cai-Ying Liu
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang, 330006, People's Republic of China
| | - Pan Deng
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang, 330006, People's Republic of China
| | - Bin Wang
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang, 330006, People's Republic of China
| | - Ai-Hong Liu
- Center of Analysis and Testing, Nanchang University, Nanchang, 330047, People's Republic of China
| | - Meng-Ge Wang
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Song-Wei Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Li-Li Chen
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Shui-Chun Mao
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang, 330006, People's Republic of China.
| |
Collapse
|
4
|
Rahmawati R, Hartati YW, Latip JB, Herlina T. An overview of techniques and strategies for isolation of flavonoids from the genus Erythrina. J Sep Sci 2023:e2200800. [PMID: 36715692 DOI: 10.1002/jssc.202200800] [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: 10/05/2022] [Revised: 01/11/2023] [Accepted: 01/20/2023] [Indexed: 01/31/2023]
Abstract
Plants in the genus Erythrina is a potential source of chemical constituents, one of which is flavonoids, which have diverse bioactivities. To date, literature on the flavonoids from the genus Erythrina has only highlighted the phytochemical aspects, so this review article will discuss isolation techniques and strategies for the first time. More than 420 flavonoids have been reported in the Erythrina genus, which are grouped into 17 categories. These flavonoid compounds were obtained through isolation techniques and strategies using polar, semi-polar, and non-polar solvents. Various chromatographic techniques have been developed to isolate flavonoids using column flash chromatography, quick column chromatography, centrifugally accelerated thin-layer chromatography, radial chromatography, medium-pressure column chromatography, semi-preparative high-performance liquid chromatography, and preparative high-performance liquid chromatography. Chromatographic processes for isolating flavonoids can be optimized using multivariate statistical applications such as response surface methodology with central composite design, Box-Behnken design, Doehlert design, and mixture design.
Collapse
Affiliation(s)
- Rahmawati Rahmawati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Padjadjaran University, Jatinangor, Indonesia.,Central Laboratory of the Directorate of Research and Community Service, Padjadjaran University, Jatinangor, Indonesia
| | - Yeni Wahyuni Hartati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Padjadjaran University, Jatinangor, Indonesia
| | - Jalifah Binti Latip
- Department of Chemical Sciences, Faculty of Science & Technology, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor, Malaysia
| | - Tati Herlina
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Padjadjaran University, Jatinangor, Indonesia
| |
Collapse
|
5
|
Rath P, Ranjan A, Ghosh A, Chauhan A, Gurnani M, Tuli HS, Habeeballah H, Alkhanani MF, Haque S, Dhama K, Verma NK, Jindal T. Potential Therapeutic Target Protein Tyrosine Phosphatase-1B for Modulation of Insulin Resistance with Polyphenols and Its Quantitative Structure–Activity Relationship. Molecules 2022; 27:molecules27072212. [PMID: 35408611 PMCID: PMC9000704 DOI: 10.3390/molecules27072212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/10/2022] [Accepted: 03/17/2022] [Indexed: 11/17/2022] Open
Abstract
The increase in the number of cases of type 2 diabetes mellitus (T2DM) and the complications associated with the side effects of chemical/synthetic drugs have raised concerns about the safety of the drugs. Hence, there is an urgent need to explore and identify natural bioactive compounds as alternative drugs. Protein tyrosine phosphatase 1B (PTP1B) functions as a negative regulator and is therefore considered as one of the key protein targets modulating insulin signaling and insulin resistance. This article deals with the screening of a database of polyphenols against PTP1B activity for the identification of a potential inhibitor. The research plan had two clear objectives. Under first objective, we conducted a quantitative structure–activity relationship analysis of flavonoids with PTP1B that revealed the strongest correlation (R2 = 93.25%) between the number of aromatic bonds (naro) and inhibitory concentrations (IC50) of PTP1B. The second objective emphasized the binding potential of the selected polyphenols against the activity of PTP1B using molecular docking, molecular dynamic (MD) simulation and free energy estimation. Among all the polyphenols, silydianin, a flavonolignan, was identified as a lead compound that possesses drug-likeness properties, has a higher negative binding energy of −7.235 kcal/mol and a pKd value of 5.2. The free energy-based binding affinity (ΔG) was estimated to be −7.02 kcal/mol. MD simulation revealed the stability of interacting residues (Gly183, Arg221, Thr263 and Asp265). The results demonstrated that the identified polyphenol, silydianin, could act as a promising natural PTP1B inhibitor that can modulate the insulin resistance.
Collapse
Affiliation(s)
- Prangya Rath
- Amity Institute of Environmental Sciences, Amity University, Noida 201303, India; (P.R.); (M.G.)
| | - Anuj Ranjan
- Academy of Biology and Biotechnology, Southern Federal University, 344006 Rostov-on-Don, Russia
- Correspondence: (A.R.); (A.G.); Tel.: +91-999-090-7571 (A.R.); +91-967-862-9146 (A.G.)
| | - Arabinda Ghosh
- Microbiology Division, Department of Botany, Gauhati University, Guwahati 781014, India
- Correspondence: (A.R.); (A.G.); Tel.: +91-999-090-7571 (A.R.); +91-967-862-9146 (A.G.)
| | - Abhishek Chauhan
- Amity Institute of Environmental Toxicology Safety and Management, Amity University, Noida 201303, India; (A.C.); (T.J.)
| | - Manisha Gurnani
- Amity Institute of Environmental Sciences, Amity University, Noida 201303, India; (P.R.); (M.G.)
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, India;
| | - Hamza Habeeballah
- Faculty of Applied Medical Sciences, King Abdulaziz University, Rabigh Branch, Rabigh 25732, Saudi Arabia;
| | - Mustfa F. Alkhanani
- Emergency Service Department, College of Applied Sciences, AlMaarefa University, Riyadh 11597, Saudi Arabia;
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia;
- Faculty of Medicine, Bursa Uludağ University Görükle Campus, Nilüfer 16059, Turkey
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, India;
| | - Naval Kumar Verma
- Homeopathy, Ministry of Ayush, Ayush Bhawan, B Block, GPO Complex INA, New Delhi 110023, India;
| | - Tanu Jindal
- Amity Institute of Environmental Toxicology Safety and Management, Amity University, Noida 201303, India; (A.C.); (T.J.)
| |
Collapse
|
6
|
Recent Updates on Development of Protein-Tyrosine Phosphatase 1B Inhibitors for Treatment of Diabetes, Obesity and Related Disorders. Bioorg Chem 2022; 121:105626. [DOI: 10.1016/j.bioorg.2022.105626] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/19/2021] [Accepted: 01/13/2022] [Indexed: 01/30/2023]
|
7
|
Proença C, Ribeiro D, Freitas M, Carvalho F, Fernandes E. A comprehensive review on the antidiabetic activity of flavonoids targeting PTP1B and DPP-4: a structure-activity relationship analysis. Crit Rev Food Sci Nutr 2021; 62:4095-4151. [PMID: 33554619 DOI: 10.1080/10408398.2021.1872483] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Type 2 diabetes (T2D) is an expanding global health problem, resulting from defects in insulin secretion and/or insulin resistance. In the past few years, both protein tyrosine phosphatase 1B (PTP1B) and dipeptidyl peptidase-4 (DPP-4), as well as their role in T2D, have attracted the attention of the scientific community. PTP1B plays an important role in insulin resistance and is currently one of the most promising targets for the treatment of T2D, since no available PTP1B inhibitors were still approved. DPP-4 inhibitors are among the most recent agents used in the treatment of T2D (although its use has been associated with possible cardiovascular adverse events). The antidiabetic properties of flavonoids are well-recognized, and include inhibitory effects on the above enzymes, although hitherto not therapeutically explored. In the present study, a comprehensive review of the literature of both synthetic and natural isolated flavonoids as inhibitors of PTP1B and DPP-4 activities is made, including their type of inhibition and experimental conditions, and structure-activity relationship, covering a total of 351 compounds. We intend to provide the most favorable chemical features of flavonoids for the inhibition of PTP1B and DPP-4, gathering information for the future development of compounds with improved potential as T2D therapeutic agents.
Collapse
Affiliation(s)
- Carina Proença
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Daniela Ribeiro
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Marisa Freitas
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Félix Carvalho
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Eduarda Fernandes
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| |
Collapse
|
8
|
Jiménez-Cabrera T, Bautista M, Velázquez-González C, Jaramillo-Morales OA, Guerrero-Solano JA, Urrutia-Hernández TA, De la O-Arciniega M. Promising Antioxidant Activity of Erythrina Genus: An Alternative Treatment for Inflammatory Pain? Int J Mol Sci 2020; 22:E248. [PMID: 33383701 PMCID: PMC7796408 DOI: 10.3390/ijms22010248] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 11/17/2022] Open
Abstract
The negative impact that oxidative stress has on health is currently known. The complex mechanism of free radicals initiates a series of chain reactions that contribute to the evolution or development of different degenerative disorders. Likewise, these disorders are usually accompanied by inflammatory processes and, therefore, pain. In this sense, reactive oxygen species (ROS) have been shown to promote the nociceptive process, but effective treatment of pain and inflammation still represents a challenge. Over time, it has been learned that there is no single way to relieve pain, and as long as there are no other alternatives, the trend will continue to apply multidisciplinary management, such as promote the traditional use of the Erythrina genus to manage pain and inflammation. In this sense, the Erythrina genus produces a wide range of secondary metabolites, including flavanones, isoflavones, isoflavones, and pterocarpans; these compounds are characterized by their antioxidant activity. Phenolic compounds have demonstrated their ability to suppress pro-oxidants and inhibit inflammatory signaling pathways such as MAPK, AP1, and NFκB. Although there is preclinical evidence supporting its use, the pharmacological effect mechanisms are not entirely clear. Nowadays, there is a fast advancement in knowledge of the disciplines related to drug discovery, but most of nature's medicinal potential has not yet been harnessed. This review analyzes the decisive role that the Erythrina genus could play in managing inflammatory pain mediated by its compounds and its uses as an antioxidant.
Collapse
Affiliation(s)
- Tania Jiménez-Cabrera
- Institute of Health Sciences, Autonomous University of the State of Hidalgo, San Agustin Tlaxiaca 55679, Hidalgo, Mexico; (T.J.-C.); (C.V.-G.); (J.A.G.-S.); (T.A.U.-H.)
| | - Mirandeli Bautista
- Institute of Health Sciences, Autonomous University of the State of Hidalgo, San Agustin Tlaxiaca 55679, Hidalgo, Mexico; (T.J.-C.); (C.V.-G.); (J.A.G.-S.); (T.A.U.-H.)
| | - Claudia Velázquez-González
- Institute of Health Sciences, Autonomous University of the State of Hidalgo, San Agustin Tlaxiaca 55679, Hidalgo, Mexico; (T.J.-C.); (C.V.-G.); (J.A.G.-S.); (T.A.U.-H.)
| | - Osmar Antonio Jaramillo-Morales
- Nursing and Obstetrics Department, Life Sciences Division, Campus Irapuato-Salamanca, Ex Hacienda El Copal, Km. 9 Carretera Irapuato-Silao, A.P 311, Irapuato 36500, Guanajuato, Mexico;
| | - José Antonio Guerrero-Solano
- Institute of Health Sciences, Autonomous University of the State of Hidalgo, San Agustin Tlaxiaca 55679, Hidalgo, Mexico; (T.J.-C.); (C.V.-G.); (J.A.G.-S.); (T.A.U.-H.)
| | - Thania Alejandra Urrutia-Hernández
- Institute of Health Sciences, Autonomous University of the State of Hidalgo, San Agustin Tlaxiaca 55679, Hidalgo, Mexico; (T.J.-C.); (C.V.-G.); (J.A.G.-S.); (T.A.U.-H.)
| | - Minarda De la O-Arciniega
- Institute of Health Sciences, Autonomous University of the State of Hidalgo, San Agustin Tlaxiaca 55679, Hidalgo, Mexico; (T.J.-C.); (C.V.-G.); (J.A.G.-S.); (T.A.U.-H.)
| |
Collapse
|
9
|
Son NT, Elshamy AI. Flavonoids and other Non-alkaloidal Constituents of Genus Erythrina: Phytochemical Review. Comb Chem High Throughput Screen 2020; 24:20-58. [PMID: 32516097 DOI: 10.2174/1386207323666200609141517] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 03/19/2020] [Accepted: 04/07/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Genus Erythrina belongs to family Fabaceae, which is widely distributed in tropical and subtropical areas. It has been used in both traditional herbal medicines and pharmacological applications. Original research articles and publications on the overview of alkaloids related to this genus are available, but a supportive systematic review account which highlighted phytochemical aspects of other types of secondary metabolites is currently insufficient. OBJECTIVE With the utilization of data and information from SCI-Finder, Google Scholar, the Web of Science, Scopus, Science Direct, PubMed, Chemical Abstracts, ACS journals, Springer, Taylor Francis, Bentham Science and IOP Science, the reliable material sources of this systematic review paper were obtained from the literature published from the 1980s to now. CONCLUSION A vast amount of data showed that the non-alkaloidal secondary metabolites were obtained from genus Erythrina with various classes of chemical structures. Herein, approximately five hundred constituents were isolated, comprising flavonoids, terpenoids, saponins, phytosterols, phenols, arylbenzofurans, coumarins, alcohols, ceramides, mono-sugars and fatty acid derivatives. In agreement with the previous phytochemical reports on the plants of the family Fabaceae, flavonoids reached a high amount in the plants of genus Erythrina. Numerous biological activity investigations such as anti-bacteria, anti-cancer, anti-virus using isolated compounds from Erythrina species suggested that secondary metabolites of Erythrina plants are now becoming the promising agents for drug developments.
Collapse
Affiliation(s)
- Ninh T Son
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau giay, Hanoi, Vietnam
| | - Abdelsamed I Elshamy
- Department of Natural Compounds Chemistry, National Research Centre, 33 El-Bohouth St., Dokki, Giza, 12622, Egypt
| |
Collapse
|
10
|
Jash SK, Gorai D, Mandal LC, Roy R. Nuclear Magnetic Resonance Spectroscopic Behaviour of Some Selective Natural Flavonoids: A Look Through. MINI-REV ORG CHEM 2020. [DOI: 10.2174/1570193x16666181224110603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Flavonoids are considered as a significant class of compounds among the natural products,
exhibiting a variety of structural skeletons as well as multidirectional biological potentials. In structural
elucidations of natural products, Nuclear Magnetic Resonance (NMR) spectroscopy has been
playing a vital role; the technique is one of the sharpest tools in the hands of natural products chemists.
The present resume deals with hard-core applications of such spectral technique, particularly in
structural elucidation of flavonoids; different NMR techniques including 1H-NMR, 13C-NMR, and
2D-NMR [viz. 1H-1H COSY, COLOC, HMBC, HMQC] are described in detail.
Collapse
Affiliation(s)
- Shyamal K. Jash
- Department of Chemistry, Krishna Chandra College, Hetampur, Birbum-731124, West Bengal, India
| | - Dilip Gorai
- Department of Chemistry, Bolpur College, Bolpur, Birbhum-731204, West Bengal, India
| | - Lalan C. Mandal
- Department of Chemistry, Krishna Chandra College, Hetampur, Birbum-731124, West Bengal, India
| | - Rajiv Roy
- Independent Researcher, Bhatgonna (Dignagar), Burdwan-713128, West Bengal, India
| |
Collapse
|
11
|
Osteoarthritis Is a Low-Grade Inflammatory Disease: Obesity's Involvement and Herbal Treatment. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:2037484. [PMID: 31781260 PMCID: PMC6874989 DOI: 10.1155/2019/2037484] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/30/2019] [Accepted: 10/03/2019] [Indexed: 12/26/2022]
Abstract
Osteoarthritis (OA) is considered a major cause of disability around the globe. This handicapping disease causes important cartilage and bone alteration that is associated with serious pains and loss of joint function. Despite its frequent association with obesity, the aetiology of OA is not fully understood. In this review, the different aspects of OA and its correlation with obesity were analysed. Through examining different mechanisms by which obesity may trigger and/or exacerbate OA, we point out some relevant signalling pathways that may evolve as candidates for pharmacological drug development. As such, we also suggest a review of different herbal medicines (HMs) and their main compounds, which specifically interfere with the identified pathways. We have shown that obesity's involvement in OA is not only limited to the mechanical weight exerted on the joints (mechanical hypothesis), but also induces an inflammatory state by different mechanisms, including increased leptin expression, compromised gut mucosa, and/or gut microbiota disruption. The main signalling pathways involved in OA inflammation, which are associated with obesity, are protein tyrosine phosphatase 1B (PTP1B) and TLR4 or DAP12. Moreover, we also underline the contamination of plant extracts with LPS as an important factor to consider when studying HM's effects on articular cells. By summarizing recent publications, this review aims at highlighting newly established aspects of obesity involvement in OA other than the mechanical one.
Collapse
|
12
|
Paudel P, Seong SH, Zhou Y, Ha MT, Min BS, Jung HA, Choi JS. Arylbenzofurans from the Root Bark of Morus alba as Triple Inhibitors of Cholinesterase, β-Site Amyloid Precursor Protein Cleaving Enzyme 1, and Glycogen Synthase Kinase-3β: Relevance to Alzheimer's Disease. ACS OMEGA 2019; 4:6283-6294. [PMID: 31459768 PMCID: PMC6649263 DOI: 10.1021/acsomega.9b00198] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 03/25/2019] [Indexed: 05/07/2023]
Abstract
Cholinesterase, β-site amyloid precursor protein cleaving enzyme 1 (BACE1), and glycogen synthase kinase-3β (GSK-3β) are the three main enzymes responsible for the early onset of Alzheimer's disease (AD). The main aim of the present study was to delineate and accentuate the triple-inhibitory potential of arylbenzofurans from Morus alba against these enzymes. Overall, the enzyme inhibition assays demonstrated the prominence of mulberrofuran D2 as an inhibitor of AChE, BChE, BACE1, and GSK-3β enzymes with IC50 values of 4.61, 1.51, 0.73, and 6.36 μM, respectively. Enzyme kinetics revealed different modes of inhibition, and in silico modeling suggested that mulberrofuran D2 inhibited these enzymes with low binding energy through hydrophilic, hydrophobic, and π-cation interactions in the active site cavities. Similarly, in Aβ-aggregation assays, mulberrofuran D2 inhibited self-induced and AChE-induced Aβ aggregation in a concentration-dependent manner that was superior to reference drugs. These results suggest that arylbenzofurans from M. alba, especially mulberrofuran D2, are triple inhibitors of cholinesterase, BACE1, and GSK-3β and may represent a novel class of anti-AD drugs.
Collapse
Affiliation(s)
- Pradeep Paudel
- Department
of Food and Life Science, Pukyong National
University, Busan 48513, Republic of Korea
| | - Su Hui Seong
- Department
of Food and Life Science, Pukyong National
University, Busan 48513, Republic of Korea
| | - Yajuan Zhou
- Department
of Food and Life Science, Pukyong National
University, Busan 48513, Republic of Korea
| | - Manh Tuan Ha
- College
of Pharmacy, Drug Research and Development Center, Catholic University of Daegu, Gyeongbuk 38430, Republic of Korea
| | - Byung Sun Min
- College
of Pharmacy, Drug Research and Development Center, Catholic University of Daegu, Gyeongbuk 38430, Republic of Korea
| | - Hyun Ah Jung
- Department
of Food Science and Human Nutrition, Chonbuk
National University, Jeonju 54896, Republic of Korea
- E-mail: . Tel: +82-63-270-4882 (H.A.J.)
| | - Jae Sue Choi
- Department
of Food and Life Science, Pukyong National
University, Busan 48513, Republic of Korea
- E-mail: . Tel: +82-51-629-5845 (J.S.C.)
| |
Collapse
|
13
|
Eleftheriou P, Geronikaki A, Petrou A. PTP1b Inhibition, A Promising Approach for the Treatment of Diabetes Type II. Curr Top Med Chem 2019; 19:246-263. [PMID: 30714526 DOI: 10.2174/1568026619666190201152153] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/18/2018] [Accepted: 01/07/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND Diabetes Mellitus (DM), is a metabolic disorder characterized by high blood glucose levels. The main types of diabetes mellitus are Diabetes mellitus type I, Diabetes mellitus type II, gestational diabetes and Diabetes of other etiology. Diabetes type II, the Non Insulin Dependent Type (NIDDM) is the most common type, characterized by the impairment in activation of the intracellular mechanism leading to the insertion and usage of glucose after interaction of insulin with its receptor, known as insulin resistance. Although, a number of drugs have been developed for the treatment of diabetes type II, their ability to reduce blood glucose levels is limited, while several side effects are also observed. Furthermore, none of the market drugs targets the enhancement of the action of the intracellular part of insulin receptor or recuperation of the glucose transport mechanism in GLUT4 dependent cells. The Protein Tyrosine Phosphatase (PTP1b) is the main enzyme involved in insulin receptor desensitization and has become a drug target for the treatment of Diabetes type II. Several PTP1b inhibitors have already been found, interacting with the binding site of the enzyme, surrounding the catalytic amino acid Cys215 and the neighboring area or with the allosteric site of the enzyme, placed at a distance of 20 Å from the active site, around Phe280. However, the research continues for finding more potent inhibitors with increased cell permeability and specificity. OBJECTIVE The aim of this review is to show the attempts made in developing of Protein Tyrosine Phosphatase (PTP1b) inhibitors with high potency, selectivity and bioavailability and to sum up the indications for favorable structural characteristics of effective PTP1b inhibitors. METHODS The methods used include a literature survey and the use of Protein Structure Databanks such as PuBMed Structure and RCSB and the tools they provide. CONCLUSION The research for finding PTP1b inhibitors started with the design of molecules mimicking the Tyrosine substrate of the enzyme. The study revealed that an aromatic ring connected to a polar group, which preferably enables hydrogen bond formation, is the minimum requirement for small inhibitors binding to the active site surrounding Cys215. Molecules bearing two hydrogen bond donor/acceptor (Hb d/a) groups at a distance of 8.5-11.5 Å may form more stable complexes, interacting simultaneously with a secondary area A2. Longer molecules with two Hb d/a groups at a distance of 17 Å or 19 Å may enable additional interactions with secondary sites (B and C) that confer stability as well as specificity. An aromatic ring linked to polar or Hb d/a moieties is also required for allosteric inhibitors. A lower distance between Hb d/a moieties, around 7.5 Å may favor allosteric interaction. Permanent inhibition of the enzyme by oxidation of the catalytic Cys215 has also been referred. Moreover, covalent modification of Cys121, placed near but not inside the catalytic pocket has been associated with permanent inhibition of the enzyme.
Collapse
Affiliation(s)
- Phaedra Eleftheriou
- Department of Medical Laboratory Studies, School of Health and Medical Care, Alexander Technological Educational Institute of Thessaloniki, Thessaloniki 57400, Greece
| | - Athina Geronikaki
- Department of Pharmacy, School of Health, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece
| | - Anthi Petrou
- Department of Pharmacy, School of Health, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece
| |
Collapse
|
14
|
Eleftheriou P, Therianou E, Lazari D, Dirnali S, Micha A. Docking Assisted Prediction and Biological Evaluation of Sideritis L. Components with PTP1b Inhibitory Action and Probable Anti-Diabetic Properties. Curr Top Med Chem 2019; 19:383-392. [DOI: 10.2174/1568026619666190219104430] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 02/09/2019] [Accepted: 02/11/2019] [Indexed: 12/13/2022]
Abstract
Background:
The main characteristic of Diabetes type II is the impaired activation of intracellular
mechanisms triggered by the action of insulin. PTP1b is a Protein Tyrosine Phosphatase that
dephosphorylates insulin receptor causing its desensitization. Since inhibition of PTP1b may prolong
insulin receptor activity, PTP1b has become a drug target for the treatment of Diabetes II. Although a
number of inhibitors have been synthesized during the last decades, the research still continues for the
development of more effective and selective compounds. Moreover, several constituents of plants and
edible algae with PTP1b inhibitory action have been found, adding this extra activity at the pallet of
properties of the specific natural products.
Objective:
Sideritis L. (Lamiaceae) is a herbal plant growing around the Mediterranean sea which is included
in the Mediterranean diet for centuries. The present study is the continuation of a previous work
where the antioxidant and anti-inflammatory activities of the components of Sideritis L. were evaluated
and aimed to investigate the potential of some sideritis’s components to act as PTP1b inhibitors, thus
exhibiting the beneficial effect in the treatment of diabetes II.
Methods:
Docking analysis was done to predict PTP1b inhibitory action. Human recombinant PTP1b
enzyme was used for the evaluation of the PTP1b inhibitory action, while inhibition of the human LAR
and human T-cell PTP was tested for the estimation of the selectivity of the compounds.
Conclusion:
Docking analysis effectively predicted inhibition and mode of inhibitory action. According
to the experimental results, four of the components exhibited PTP1b inhibitory action. The most active
ones were acetoside, which acted as a competitive inhibitor, with an IC50 of 4 µM and lavandufolioside,
which acted as an uncompetitive inhibitor, with an IC50 of 9.3 µM. All four compounds exhibited increased
selectivity against PTP1b.
Collapse
Affiliation(s)
- Phaedra Eleftheriou
- Department of Medical Laboratory Studies, School of Health and Medical Care, Alexander Technological Educational Institute of Thessaloniki, ATEITH Campus, Sindos, 57400, Thessaloniki, Greece
| | - Ekaterini Therianou
- Department of Medical Laboratory Studies, School of Health and Medical Care, Alexander Technological Educational Institute of Thessaloniki, ATEITH Campus, Sindos, 57400, Thessaloniki, Greece
| | - Diamanto Lazari
- Laboratory of Pharmacognosy, Division of Pharmacognosy-Pharmacology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Stavroula Dirnali
- Department of Medical Laboratory Studies, School of Health and Medical Care, Alexander Technological Educational Institute of Thessaloniki, ATEITH Campus, Sindos, 57400, Thessaloniki, Greece
| | - Anna Micha
- Department of Medical Laboratory Studies, School of Health and Medical Care, Alexander Technological Educational Institute of Thessaloniki, ATEITH Campus, Sindos, 57400, Thessaloniki, Greece
| |
Collapse
|
15
|
Keßberg A, Lübken T, Metz P. Enantioselective Total Synthesis of Natural Isoflavans: Asymmetric Transfer Hydrogenation/Deoxygenation of Isoflavanones with Dynamic Kinetic Resolution. Org Lett 2018; 20:3006-3009. [PMID: 29718674 DOI: 10.1021/acs.orglett.8b01034] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A concise and highly enantioselective synthesis of structurally diverse isoflavans from a single chromone is described. The key transformation is a single-step conversion of racemic isoflavanones into virtually enantiopure isoflavans by domino asymmetric transfer hydrogenation/deoxygenation with dynamic kinetic resolution.
Collapse
Affiliation(s)
- Anton Keßberg
- Fakultät Chemie und Lebensmittelchemie, Organische Chemie I , Technische Universität Dresden , Bergstrasse 66 , 01069 Dresden , Germany
| | - Tilo Lübken
- Fakultät Chemie und Lebensmittelchemie, Organische Chemie I , Technische Universität Dresden , Bergstrasse 66 , 01069 Dresden , Germany
| | - Peter Metz
- Fakultät Chemie und Lebensmittelchemie, Organische Chemie I , Technische Universität Dresden , Bergstrasse 66 , 01069 Dresden , Germany
| |
Collapse
|
16
|
Feng MT, Wang T, Liu AH, Li J, Yao LG, Wang B, Guo YW, Mao SC. PTP1B inhibitory and cytotoxic C-24 epimers of Δ 28-24-hydroxy stigmastane-type steroids from the brown alga Dictyopteris undulata Holmes. PHYTOCHEMISTRY 2018; 146:25-35. [PMID: 29207320 DOI: 10.1016/j.phytochem.2017.11.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 11/07/2017] [Accepted: 11/28/2017] [Indexed: 06/07/2023]
Abstract
Ten stigmastane-type steroids bearing unusual Δ28-24-hydroxy side chains, dictyopterisins A-J, including three pairs of C-24 epimers, dictyopterisins B/C, F/G, and I/J, were isolated from the brown alga Dictyopteris undulata Holmes, together with two previously reported analogues, (24S)- and (24R)-saringosterol. Their structures were elucidated on the basis of extensive spectroscopic analysis, with their absolute configurations at the stereogenic center C-24 of the side chain being assigned by a direct comparison of 1H NMR data with those of related known compounds. The absolute configurations of the steroidal nuclei of dictyopterisins A, B, and H were determined using the modified Mosher's method. The mixture of dictyopterisins D and E and dictyopterisin I exhibited promising PTP1B inhibitory activities with IC50 values of 1.88 and 3.47 μM, respectively, comparable to the positive control oleanolic acid (IC50, 2.78 μM). In addition, the mixture of dictyopterisins D and E and dictyopterisins F-J displayed significant cytotoxicities against the human cancer cell lines HL-60 (IC50 from 1.02 to 2.70 μM) and A-549 (IC50 from 1.35 to 2.85 μM).
Collapse
Affiliation(s)
- Mei-Tang Feng
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China
| | - Ting Wang
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China
| | - Ai-Hong Liu
- Center of Analysis and Testing, Nanchang University, Nanchang 330047, People's Repulic of China
| | - Jia Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Repulic of China
| | - Li-Gong Yao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Repulic of China
| | - Bin Wang
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Repulic of China
| | - Shui-Chun Mao
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China.
| |
Collapse
|
17
|
Nyandoro SS, Munissi JJE, Kombo M, Mgina CA, Pan F, Gruhonjic A, Fitzpatrick P, Lu Y, Wang B, Rissanen K, Erdélyi M. Flavonoids from Erythrina schliebenii. JOURNAL OF NATURAL PRODUCTS 2017; 80:377-383. [PMID: 28112509 DOI: 10.1021/acs.jnatprod.6b00839] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Prenylated and O-methylflavonoids including one new pterocarpan (1), three new isoflavones (2-4), and nineteen known natural products (5-23) were isolated and identified from the root, stem bark, and leaf extracts of Erythrina schliebenii. The crude extracts and their constituents were evaluated for antitubercular activity against Mycobacterium tuberculosis (H37Rv strain), showing MICs of 32-64 μg mL-1 and 36.9-101.8 μM, respectively. Evaluation of their toxicity against the aggressive human breast cancer cell line MDA-MB-231 indicated EC50 values of 13.0-290.6 μM (pure compounds) and 38.3 to >100 μg mL-1 (crude extracts).
Collapse
Affiliation(s)
- Stephen S Nyandoro
- Chemistry Department, College of Natural and Applied Sciences, University of Dar es Salaam , P.O. Box 35061, Dar es Salaam, Tanzania
- Department of Chemistry and Molecular Biology, University of Gothenburg , Gothenburg SE-412 96, Sweden
| | - Joan J E Munissi
- Chemistry Department, College of Natural and Applied Sciences, University of Dar es Salaam , P.O. Box 35061, Dar es Salaam, Tanzania
- Department of Chemistry and Molecular Biology, University of Gothenburg , Gothenburg SE-412 96, Sweden
| | - Msim Kombo
- Chemistry Department, College of Natural and Applied Sciences, University of Dar es Salaam , P.O. Box 35061, Dar es Salaam, Tanzania
| | - Clarence A Mgina
- Chemistry Department, College of Natural and Applied Sciences, University of Dar es Salaam , P.O. Box 35061, Dar es Salaam, Tanzania
| | - Fangfang Pan
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla , P.O. Box. 35, FI-40014 University of Jyvaskyla, Finland
| | - Amra Gruhonjic
- Sahlgrenska Cancer Centre, University of Gothenburg , Gothenburg SE-405 30, Sweden
| | - Paul Fitzpatrick
- Sahlgrenska Cancer Centre, University of Gothenburg , Gothenburg SE-405 30, Sweden
| | - Yu Lu
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumour Research Institute , Beijing 101149, People's Republic of China
| | - Bin Wang
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumour Research Institute , Beijing 101149, People's Republic of China
| | - Kari Rissanen
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla , P.O. Box. 35, FI-40014 University of Jyvaskyla, Finland
| | - Máté Erdélyi
- Department of Chemistry and Molecular Biology, University of Gothenburg , Gothenburg SE-412 96, Sweden
- Swedish NMR Centre, University of Gothenburg , Gothenburg SE-405 30, Sweden
| |
Collapse
|
18
|
Sun P, Jiang CS, Zhang Y, Liu AH, Liang TJ, Li J, Guo YW, Jiang JM, Mao SC, Wang B. Aglaiabbrevins A–D, New Prenylated Bibenzyls from the Leaves of Aglaia abbreviata with Potent PTP1B Inhibitory Activity. Chem Pharm Bull (Tokyo) 2017; 65:295-299. [DOI: 10.1248/cpb.c16-00868] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Pan Sun
- School of Pharmacy, Nanchang University
| | | | - Yi Zhang
- School of Pharmacy, Nanchang University
| | - Ai-Hong Liu
- Center of Analysis and Testing, Nanchang University
| | - Tong-Jun Liang
- Lushan Botanical Garden, Jiangxi Province & The Chinese Academy of Sciences
| | - Jia Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences
| | | | | | - Bin Wang
- School of Pharmacy, Nanchang University
| |
Collapse
|
19
|
Polyphenols from Erythrina crista-galli: Structures, Molecular Docking and Phytoestrogenic Activity. Molecules 2016; 21:molecules21060726. [PMID: 27271580 PMCID: PMC6274393 DOI: 10.3390/molecules21060726] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/21/2016] [Accepted: 05/27/2016] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES The current study aimed at exploring the secondary metabolites content of Erythrina crista-galli aqueous methanol extract and assessing its phytoestrogenic and cytoprotective activities. METHODS Isolation of the compounds was carried out using conventional chromatographic techniques. The structures of the isolated compounds were elucidated based on the UV, NMR spectral data along with their mass-spectrometric analyses. The phytoestrogenic activity was evaluated in-silico and in vitro using the Arabidopsis thaliana pER8: GUS reporter assay and the proliferation-enhancing activity of MCF-7 cells. KEY FINDINGS Phytochemical investigation of E. crista-galli aqueous methanol extract resulted in the isolation and identification of five flavonoids. The plant extract and its fractions showed significant estrogenic activities compared to controls. CONCLUSION Five flavonoids were identified from E. crista-galli aqueous methanol extract. To the best of our knowledge, among these flavonoids, apigenin-7-O-rhamnosyl-6-C-glucoside was isolated for the first time from nature. Moreover, luteolin-6-C-glucoside was isolated for the first time from this plant. The plant revealed promising phytoestrogenic activities. This gives rationale to some of its pharmacological properties and suggests additional phytoestrogenic effects, which have not been reported yet.
Collapse
|
20
|
Zhao BT, Le DD, Nguyen PH, Ali MY, Choi JS, Min BS, Shin HM, Rhee HI, Woo MH. PTP1B, α-glucosidase, and DPP-IV inhibitory effects for chromene derivatives from the leaves of Smilax china L. Chem Biol Interact 2016; 253:27-37. [PMID: 27060210 DOI: 10.1016/j.cbi.2016.04.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 03/16/2016] [Accepted: 04/05/2016] [Indexed: 12/29/2022]
Abstract
Two new flavonoids, bismilachinone (11) and smilachinin (14), were isolated from the leaves of Smilax china L. together with 14 known compounds. Their structures were elucidated using spectroscopic methods. The PTP1B, α-glucosidase, and DPP-IV inhibitory activities of compounds 1-16 were evaluated at the molecular level. Among them, compounds 4, 7, and 10 showed moderate DPP-IV inhibitory activities with IC50 values of 20.81, 33.12, and 32.93 μM, respectively. Compounds 3, 4, 6, 11, 12, and 16 showed strong PTP1B inhibitory activities, with respective IC50 values of 7.62, 10.80, 0.92, 2.68, 9.77, and 24.17 μM compared with the IC50 value for the positive control (ursolic acid: IC50 = 1.21 μM). Compounds 2-7, 11, 12, 15, and 16 showed potent α-glucosidase inhibitory activities, with respective IC50 values of 8.70, 81.66, 35.11, 35.92, 7.99, 26.28, 11.28, 62.68, 44.32, and 70.12 μM. The positive control, acarbose, displayed an IC50 value of 175.84 μM. In the kinetic study for the PTP1B enzyme, compounds 6, 11, and 12 displayed competitive inhibition with Ki values of 3.20, 8.56, and 5.86 μM, respectively. Compounds 3, 4, and 16 showed noncompetitive inhibition with Ki values of 18.75, 5.95, and 22.86 μM, respectively. Molecular docking study for the competitive inhibitors (6, 11, and 12) radically corroborates the binding affinities and inhibition of PTP1B enzymes. These results indicated that the leaves of Smilax china L. may contain compounds with anti-diabetic activity.
Collapse
Affiliation(s)
- Bing Tian Zhao
- College of Pharmacy, Catholic University of Daegu, Gyeongsan 38430, Republic of Korea
| | - Duc Dat Le
- College of Pharmacy, Catholic University of Daegu, Gyeongsan 38430, Republic of Korea
| | - Phi Hung Nguyen
- College of Pharmacy, Catholic University of Daegu, Gyeongsan 38430, Republic of Korea; Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Hanoi, Vietnam
| | - Md Yousof Ali
- Department of Food Science & Nutrition, Pukyong National University, Busan 48513, Republic of Korea
| | - Jae-Sue Choi
- Department of Food Science & Nutrition, Pukyong National University, Busan 48513, Republic of Korea
| | - Byung Sun Min
- College of Pharmacy, Catholic University of Daegu, Gyeongsan 38430, Republic of Korea
| | - Heung Mook Shin
- Department of Physiology, College of Oriental Medicine, Dongguk University, Seoul 04620, Republic of Korea
| | - Hae Ik Rhee
- Department of Biotechnology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Mi Hee Woo
- College of Pharmacy, Catholic University of Daegu, Gyeongsan 38430, Republic of Korea.
| |
Collapse
|
21
|
Passreiter CM, Suckow-Schnitker AK, Kulawik A, Addae-Kyereme J, Wright CW, Wätjen W. Prenylated flavanone derivatives isolated from Erythrina addisoniae are potent inducers of apoptotic cell death. PHYTOCHEMISTRY 2015; 117:237-244. [PMID: 26101145 DOI: 10.1016/j.phytochem.2015.04.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 03/24/2015] [Accepted: 04/07/2015] [Indexed: 06/04/2023]
Abstract
Extracts of Erythrina addisoniae are frequently used in the traditional medicine of Western Africa, but insufficient information about active compounds is available. From the stem bark of E. addisoniae, three (1, 2, 4) and three known (3, 5, 6) flavanones were isolated: addisoniaflavanones I and II, containing either a 2″,3″-epoxyprenyl moiety (1) or a 2″,3″-dihydroxyprenyl moiety (2) were shown to be highly toxic (MTT assay: EC50 values of 5.25±0.7 and 8.5±1.3 μM, respectively) to H4IIE hepatoma cells. The cytotoxic potential of the other isolated flavanones was weaker (range of EC50 values between 15 and >100 μM). Toxic effects of addisoniaflavanone I and II were detectable after 3h (MTT assay). Both compounds induced an apoptotic cell death (caspase-3/7 activation, nuclear fragmentation) in the hepatoma cells and, at high concentrations, also necrosis (membrane disruption: ethidium bromide staining). Formation of DNA strand breaks was not detectable after incubation with these compounds (comet assay). In conclusion, the prenylated flavanones addisoniaflavanones I and II may be of interest for pharmacological purposes due to their high cytotoxic and pro-apoptotic potential against hepatoma cells.
Collapse
Affiliation(s)
- Claus M Passreiter
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Anke-Katrin Suckow-Schnitker
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Andreas Kulawik
- Institute of Toxicology, Heinrich-Heine-University, P.O. Box 101007, 40001 Düsseldorf, Germany
| | - Jonathan Addae-Kyereme
- Bradford School of Pharmacy, University of Bradford, Richmond Road, West Yorkshire BD 7 1 DP, UK
| | - Colin W Wright
- Bradford School of Pharmacy, University of Bradford, Richmond Road, West Yorkshire BD 7 1 DP, UK
| | - Wim Wätjen
- Institute of Toxicology, Heinrich-Heine-University, P.O. Box 101007, 40001 Düsseldorf, Germany; Institute of Agricultural and Nutritional Sciences, Biofunctionality of Secondary Plant Compounds, Martin Luther University Halle-Wittenberg, Weinbergweg 22 (Biozentrum), 06120 Halle/Saale, Germany.
| |
Collapse
|
22
|
Kumar S, Pathania AS, Nalli YK, Malik FA, Vishwakarma RA, Ali A. Synthesis of new O-alkyl and alkyne–azide cycloaddition derivatives of 4′-methoxy licoflavanone: a distinct prenylated flavonoids depicting potent cytotoxic activity. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1177-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
23
|
Chen X, Mukwaya E, Wong MS, Zhang Y. A systematic review on biological activities of prenylated flavonoids. PHARMACEUTICAL BIOLOGY 2014; 52:655-60. [PMID: 24256182 DOI: 10.3109/13880209.2013.853809] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
CONTEXT Prenylated flavonoids are a unique class of naturally occurring flavonoids that exist especially for the plant's self-defensive strategy. This special class of flavonoids increases the bioactivities of their backbone flavonoids with non-prenylation; therefore, prenylated flavonoids have more potential to be developed and utilized. OBJECTIVE The number, position and type of the prenyl group on the flavonoids backbone structure may have close relationships with the bioactivities of flavonoids. METHODS PubMed and WEB OF KNOWLEDGE® were used to search articles published in English between 1 January 2002 and 31 December 2012, which discuss the structure-activity relationship between prenylated flavonoids and their bioactivities. RESULTS It is proposed that the prenyl-moiety makes the backbone compound more lipophilic, which leads to its high affinity with cell membranes. The prenylation brings the flavonoids with enhancement of antibacterial, anti-inflammatory, antioxidant, cytotoxicity, larvicidal as well as estrogenic activities. However, it is reported that the prenyl-moiety decreases the bioavailability and plasma absorption of prenylated flavonoids. CONCLUSION The prenyl group affects the bioactivities of flavonoids in certain ways, while the action mechanisms and the structure-activity relationship as well as more in vivo studies even clinical validation trials need to be further investigated.
Collapse
Affiliation(s)
- Xi Chen
- School of Medical Instrument and Food Engineering, Center for Systems Biomedical Sciences, University of Shanghai for Science and Technology , Shanghai 200093 , People's Republic of China
| | | | | | | |
Collapse
|
24
|
Kumar S, Pathania AS, Saxena AK, Vishwakarma RA, Ali A, Bhushan S. The anticancer potential of flavonoids isolated from the stem bark of Erythrina suberosa through induction of apoptosis and inhibition of STAT signaling pathway in human leukemia HL-60 cells. Chem Biol Interact 2013; 205:128-37. [PMID: 23850732 DOI: 10.1016/j.cbi.2013.06.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 06/15/2013] [Accepted: 06/26/2013] [Indexed: 12/14/2022]
Abstract
Erythrina suberosa is an ornamental tall tree found in India, Pakistan, Nepal, Bhutan, Burma, Thailand and Vietnam. We have isolated four known distinct metabolites designated as α-Hydroxyerysotrine, 4'-Methoxy licoflavanone (MLF), Alpinumisoflavone (AIF) and Wighteone. Among the four isolated metabolites the two flavonoids, MLF and AIF were found to be the most potent cytotoxic agent with IC50 of ∼20μM in human leukemia HL-60 cells. We are reporting first time the anticancer and apoptotic potential of MLF and AIF in HL-60 cells. Both MLF and AIF inhibited HL-60 cell proliferation and induce apoptosis as measured by several biological endpoints. MLF and AIF induce apoptosis bodies formation, enhanced annexinV-FITC binding of the cells, increased sub-G0 cell fraction, loss of mitochondrial membrane potential (Δψm), release of cytochrome c, Bax, activation of caspase-9, caspase-3 and PARP (poly ADP Ribose polymers) cleavage in HL-60 cells. MLF and AIF also increase the expression of apical death receptor, Fas, with inhibition of anti-apoptotic protein Bid. All the above parameters revealed that these two flavonoids induce apoptosis through both extrinsic and intrinsic apoptotic pathways in HL-60 cells. In spite of apoptosis, these two flavonoids significantly inhibit nuclear transcription factor NF-κB and STAT (Signal Transducer and Activator of Transcription) signaling pathway, which are highly expressed in leukemia. The present study provide an insight of molecular mechanism of cell death induced by MLF and AIF in HL-60 cells which may be useful in managing and treating leukemia.
Collapse
Affiliation(s)
- Sunil Kumar
- Division of Natural Product Chemistry, Indian Institute of Integrative Medicine, CSIR, Canal Road, Jammu 180001, India
| | | | | | | | | | | |
Collapse
|
25
|
|
26
|
Jiang CS, Liang LF, Guo YW. Natural products possessing protein tyrosine phosphatase 1B (PTP1B) inhibitory activity found in the last decades. Acta Pharmacol Sin 2012; 33:1217-45. [PMID: 22941286 PMCID: PMC4002712 DOI: 10.1038/aps.2012.90] [Citation(s) in RCA: 153] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 06/08/2012] [Indexed: 12/19/2022] Open
Abstract
This article provides an overview of approximately 300 secondary metabolites with inhibitory activity against protein tyrosine phosphatase 1B (PTP1B), which were isolated from various natural sources or derived from synthetic process in the last decades. The structure-activity relationship and the selectivity of some compounds against other protein phosphatases were also discussed. Potential pharmaceutical applications of several PTP1B inhibitors were presented.
Collapse
Affiliation(s)
- Cheng-shi Jiang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Lin-fu Liang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yue-wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| |
Collapse
|
27
|
Sasaki T, Li W, Morimura H, Li S, Li Q, Asada Y, Koike K. Chemical constituents from Sambucus adnata and their protein-tyrosine phosphatase 1B inhibitory activities. Chem Pharm Bull (Tokyo) 2012; 59:1396-9. [PMID: 22041077 DOI: 10.1248/cpb.59.1396] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The MeOH extract from the whole plants of Sambucus adnata has shown significant protein-tyrosine phosphatase 1B (PTP1B) inhibitory activity. Chemical study on the extract resulted in the isolation of thirteen compounds, including a novel triterpene (1). The structure of 1 was determined to be 1α,3β-dihydroxy-urs-12-en-11-one-3-yl palmitate on the basis of extensive spectroscopic analyses. Among the isolated compounds, ursolic acid, oleanolic acid and (±)-boehmenan showed the most potent PTP1B inhibitory activity in vitro with the IC(50) values of 4.1, 14.4 and 43.5 µm, respectively. The kinetic analysis indicated that (±)-boehmenan inhibits PTP1B activity in a competitive manner.
Collapse
Affiliation(s)
- Tatsunori Sasaki
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba 274–8510, Japan
| | | | | | | | | | | | | |
Collapse
|
28
|
In vitro synergistic interaction of 5-O-methylglovanon and ampicillin against ampicillin resistant Staphylococcus aureus and Staphylococcus epidermidis isolates. Arch Pharm Res 2011; 34:1751-7. [PMID: 22076775 DOI: 10.1007/s12272-011-1019-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2011] [Revised: 05/06/2011] [Accepted: 06/09/2011] [Indexed: 10/15/2022]
Abstract
5-O-methylglovanon (5-O-MG) is a bioactive compound that was first isolated and characterized from Glycosmis plants. In this study, we found that chemically synthesized 5-O-MG has antimicrobial ability against eleven clinical ampicillin resistant Staphylococcus aureus and S. epidermidis isolates. The MICs of 5-O-MG against the S. aureus and S. epidermidis isolates were 12.5-50 μg/mL and 25-50 μg/mL, respectively. In combination with ampicillin, a synergistic interaction between 5-O-MG and ampicillin against the eleven resistant Staphylococcus isolates was observed, with fractional inhibitory concentration indices of 0.03-0125. Moreover, the anti-staphylococcal activity of 5-O-MG in combination with ampicillin was comparable with that of clavulanic acid in combination with ampicillin. The drug combination had no antagonistic effects when tested against any of the strains. Time-killing assays confirmed the synergy between 5-O-MG and ampicillin (p < 0.01). The combination of these two agents yielded greater than a 2 log(10) cfu/mL decrease in comparison with 5-O-MG or ampicillin alone. These findings suggest that 5-O-MG is a promising compound with the potential for future anti-staphylococcal drug development.
Collapse
|
29
|
Affiliation(s)
- Nigel C Veitch
- Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW93AB, UK.
| | | |
Collapse
|
30
|
3,6-Dihydroxyflavone induces apoptosis in leukemia HL-60 cell via reactive oxygen species-mediated p38 MAPK/JNK pathway. Eur J Pharmacol 2010; 648:31-8. [DOI: 10.1016/j.ejphar.2010.08.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2010] [Revised: 07/05/2010] [Accepted: 08/21/2010] [Indexed: 01/14/2023]
|
31
|
Dao TT, Nguyen PH, Thuong PT, Kang KW, Na M, Ndinteh DT, Mbafor JT, Oh WK. Pterocarpans with inhibitory effects on protein tyrosine phosphatase 1B from Erythrina lysistemon Hutch. PHYTOCHEMISTRY 2009; 70:2053-2057. [PMID: 19833362 DOI: 10.1016/j.phytochem.2009.09.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Revised: 05/22/2009] [Accepted: 09/13/2009] [Indexed: 05/28/2023]
Abstract
Bioassay-guided fractionation of the MeOH extract of the stem bark of Erythrina lysistemon Hutch. resulted in isolation of pterocarpans (1-3), named erylysins A-C, along with nine known pterocarpans (4-12). Their structures were determined to be 3''-hydroxy-2',2'-dimethylpyrano[6',5':3,4]-2'',2''-dimethyldihydropyrano[6'',5'':9,10]pterocarpan (1), furano[5',4':3,4]-9-hydroxy-10-prenylpterocarpan (2), and 8-formyl-3,9-dihydroxy-4,10-diprenylpterocarpan (3), based on spectroscopic analyses. All the isolates, with the exception of 3, 6, and 11, strongly inhibited protein tyrosine phosphatase 1B (PTP1B) activity in an in vitro assay, with IC(50) values ranging from 1.01+/-0.3 to 18.1+/-0.9 microg/mL. This is the first report showing the potential of prenylated pterocarpans as a class of natural PTP1B inhibitors.
Collapse
Affiliation(s)
- Trong Tuan Dao
- College of Pharmacy, Chosun University, 375 Seosuk-dong, Gwangju 501-759, Republic of Korea
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Tchokouaha RF, Alexi X, Chosson E, Besson T, Skaltsounis AL, Seguin E, Alexis MN, Wandji J. Erymildbraedin A and B, two novel cytotoxic dimethylpyrano-isoflavones from the stem bark of Erythrina mildbraedii: evaluation of their activity toward endocrine cancer cells. J Enzyme Inhib Med Chem 2009; 25:228-33. [DOI: 10.3109/14756360903169972] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ruben F. Tchokouaha
- UMR CNRS 6014 – C.O.B.R.A.-IRCOF, UFR Médecine-Pharmacie, Université de Rouen, Rouen, France
| | - Xanthippi Alexi
- Institute of Biological Research and Biotechnology, National Hellenic Research Foundation, Athens, Greece
| | - Elizabeth Chosson
- UMR CNRS 6014 – C.O.B.R.A.-IRCOF, UFR Médecine-Pharmacie, Université de Rouen, Rouen, France
| | - Thierry Besson
- UMR CNRS 6014 – C.O.B.R.A.-IRCOF, UFR Médecine-Pharmacie, Université de Rouen, Rouen, France
| | - Alexios-Leandros Skaltsounis
- Division of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Athens, Greece
| | - Elisabeth Seguin
- UMR CNRS 6014 – C.O.B.R.A.-IRCOF, UFR Médecine-Pharmacie, Université de Rouen, Rouen, France
| | - Michael N. Alexis
- Institute of Biological Research and Biotechnology, National Hellenic Research Foundation, Athens, Greece
| | - Jean Wandji
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| |
Collapse
|
33
|
Yoon G, Lee W, Kim SN, Cheon SH. Inhibitory effect of chalcones and their derivatives from Glycyrrhiza inflata on protein tyrosine phosphatase 1B. Bioorg Med Chem Lett 2009; 19:5155-7. [DOI: 10.1016/j.bmcl.2009.07.054] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2009] [Revised: 07/02/2009] [Accepted: 07/03/2009] [Indexed: 11/30/2022]
|