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Hoang LTTT, Phan HVT, Nguyen-Si HV, Tran TN, Vo TPG, Le HTT, Dao NVT, Huynh TMS, Mai DT, Dong PSN, Nguyen VK. Tinctoric acid A-B, two new hopan-type triterpenoids from the Vietnamese lichen, Parmotrema tinctorum (Despr. ex Nyl.) hale with α-glucosidase inhibitory activity. Nat Prod Res 2024:1-8. [PMID: 38258412 DOI: 10.1080/14786419.2024.2305659] [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: 12/09/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024]
Abstract
Two new hopan-type triterpenoids, namely tinctoric acid A-B (1-2), were isolated from the lichen Parmotrema tinctorum (Despr. ex Nyl.) Hale. Their structures were elucidated by extensive spectroscopic analyses (1D and 2D NMR). The absolute configuration at C-22 of 1 was established through DP4 probability. Compounds 1-2 were evaluated for their inhibitory activity against α-glucosidase and found to be more potent than those of positive control (acarbose, IC50 168 µM) with values IC50 74.7 and 98.2 µM, respectively. Both of these compounds interacted well with enzyme α-glucosidase MAL32 through H-bonds and hydrophobic interaction.
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Affiliation(s)
- Le-Thuy-Thuy-Trang Hoang
- Laboratory of Advanced Materials Chemistry, Institute for Advanced Study in Technology, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Hoang-Vinh-Truong Phan
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Vietnam
| | - Hoai-Vu Nguyen-Si
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Vietnam
| | - Thanh-Nha Tran
- Department of Environmental Engineering, Thu Dau Mot University, Binh Duong, Vietnam
| | - Thi-Phi-Giao Vo
- Department of Ecology-Evolutionary Biology, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Thu Duc City, Vietnam
| | - Huong Thi Thu Le
- Department of Chemistry, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam
| | - Ngoc-Van-Trang Dao
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Vietnam
| | - Thi-Minh-Suong Huynh
- University of Natural Resources and Environment Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Dinh-Tri Mai
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
- Institute of Chemical Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Phan-Si-Nguyen Dong
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Vietnam
| | - Van-Kieu Nguyen
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Vietnam
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Chellappan DK, Chellian J, Rahmah NSN, Gan WJ, Banerjee P, Sanyal S, Banerjee P, Ghosh N, Guith T, Das A, Gupta G, Singh SK, Dua K, Kunnath AP, Norhashim NA, Ong KH, Palaniveloo K. Hypoglycaemic Molecules for the Management of Diabetes Mellitus from Marine Sources. Diabetes Metab Syndr Obes 2023; 16:2187-2223. [PMID: 37521747 PMCID: PMC10386840 DOI: 10.2147/dmso.s390741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 07/12/2023] [Indexed: 08/01/2023] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disorder recognized as a major health problem globally. A defective insulin activity contributes to the prevalence and expansion of DM. Treatment of DM is often hampered by limited options of conventional therapies and adverse effects associated with existing procedures. This has led to a spike in the exploration for potential therapeutic agents from various natural resources for clinical applications. The marine environment is a huge store of unexplored diversity of chemicals produced by a multitude of organisms. To date, marine microorganisms, microalgae, macroalgae, corals, sponges, and fishes have been evaluated for their anti-diabetic properties. The structural diversity of bioactive metabolites discovered has shown promising hypoglycaemic potential through in vitro and in vivo screenings via various mechanisms of action, such as PTP1B, α-glucosidase, α-amylase, β-glucosidase, and aldose reductase inhibition as well as PPAR alpha/gamma dual agonists activities. On the other hand, hypoglycaemic effect is also shown to be exerted through the balance of antioxidants and free radicals. This review highlights marine-derived chemicals with hypoglycaemic effects and their respective mechanisms of action in the management of DM in humans.
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Affiliation(s)
- Dinesh Kumar Chellappan
- Department of Life Sciences, International Medical University, Kuala Lumpur, 57000, Malaysia
| | - Jestin Chellian
- Department of Life Sciences, International Medical University, Kuala Lumpur, 57000, Malaysia
| | | | - Wee Jin Gan
- School of Pharmacy, International Medical University, Kuala Lumpur, 57000, Malaysia
| | - Priyanka Banerjee
- Department of Pharmaceutical Technology, School of Medical Sciences, Adamas University, Kolkata, West Bengal, India
| | - Saptarshi Sanyal
- Department of Pharmaceutical Technology, School of Medical Sciences, Adamas University, Kolkata, West Bengal, India
| | | | - Nandini Ghosh
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tanner Guith
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Amitava Das
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jaipur, Rajasthan, 302017, India
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, Uttarakhand, 248007, India
- Center for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Science, Chennai, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Anil Philip Kunnath
- Division of Applied Biomedical Science and Biotechnology, School of Health Sciences, International Medical University, Kuala Lumpur, 57000, Malaysia
| | - Nur Azeyanti Norhashim
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, Core Technology Facility, The University of Manchester, Manchester, M13 9NT, UK
- Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Kuan Hung Ong
- Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Kishneth Palaniveloo
- Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur, 50603, Malaysia
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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.
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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.)
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Vu TH, Delalande O, Lalli C, Reider S, Ferron S, Boustie J, Waltenberger B, Lohézic-Le Dévéhat F. Inhibitory Effects of Secondary Metabolites from the Lichen Stereocaulon evolutum on Protein Tyrosine Phosphatase 1B. PLANTA MEDICA 2021; 87:701-708. [PMID: 33618379 DOI: 10.1055/a-1334-4480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Protein tyrosine phosphatase 1B plays a significant role in type 2 diabetes mellitus and other diseases and is therefore considered a new drug target. Within this study, an acetone extract from the lichen Stereocaulon evolutum was identified to possess strong protein tyrosine phosphatase 1B inhibition in a cell-free assay (IC50 of 11.8 µg/mL). Fractionation of this bioactive extract led to the isolation of seven known molecules belonging to the depsidones and the related diphenylethers and one new natural product, i.e., 3-butyl-3,7-dihydroxy-5-methoxy-1(3H)-isobenzofurane. The isolated compounds were evaluated for their inhibition of protein tyrosine phosphatase 1B. Two depsidones, lobaric acid and norlobaric acid, and the diphenylether anhydrosakisacaulon A potently inhibited protein tyrosine phosphatase 1B with IC50 values of 12.9, 15.1, and 16.1 µM, respectively, which is in the range of the protein tyrosine phosphatase 1B inhibitory activity of the positive control ursolic acid (IC50 of 14.4 µM). Molecular simulations performed on the eight compounds showed that i) a contact between the molecule and the four main regions of the protein is required for inhibitory activity, ii) the relative rigidity of the depsidones lobaric acid and norlobaric acid and the reactivity related to hydrogen bond donors or acceptors, which interact with protein tyrosine phosphatase 1B key amino acids, are involved in the bioactivity on protein tyrosine phosphatase 1B, iii) the cycle opening observed for diphenylethers decreased the inhibition, except for anhydrosakisacaulon A where its double bond on C-8 offsets this loss of activity, iv) the function present at C-8 is a determinant for the inhibitory effect on protein tyrosine phosphatase 1B, and v) the more hydrogen bonds with Arg221 there are, the more anchorage is favored.
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Affiliation(s)
- Thi Huyen Vu
- University of Rennes, CNRS, ISCR - UMR 6226, Rennes, France
| | | | - Claudia Lalli
- University of Rennes, CNRS, ISCR - UMR 6226, Rennes, France
| | - Stefanie Reider
- Institute of Pharmacy/Pharmacognosy, University of Innsbruck and Center for Molecular Biosciences Innsbruck (CMBI), Innsbruck, Austria
| | - Solenn Ferron
- University of Rennes, CNRS, ISCR - UMR 6226, Rennes, France
| | - Joel Boustie
- University of Rennes, CNRS, ISCR - UMR 6226, Rennes, France
| | - Birgit Waltenberger
- Institute of Pharmacy/Pharmacognosy, University of Innsbruck and Center for Molecular Biosciences Innsbruck (CMBI), Innsbruck, Austria
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Rao MMV, Hariprasad TPN. In silico analysis of a potential antidiabetic phytochemical erythrin against therapeutic targets of diabetes. In Silico Pharmacol 2021; 9:5. [PMID: 33442532 DOI: 10.1007/s40203-020-00065-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 12/05/2020] [Indexed: 12/16/2022] Open
Abstract
Diabetes mellitus is a multifactorial disorder characterized by a chronic elevation in blood glucose levels. Currently, antidiabetic drugs are available to counteract the associated pathologies. Their concomitant effects necessitate the investigation for an effective and safe drug aimed to diminish blood glucose levels with fewer side effects. Several researchers are taking new initiatives to explore plant sources as they are known to contain a wide variety of active agents. Hence, the present study was undertaken to study the role of natural products using in silico interaction studies. Erythrin a compound present in lichens was selected as a potential anti-diabetic agent. Molecular docking studies were carried out with 14 target proteins to evaluate its antidiabetic potential. Molecular docking analysis resulted in favourable binding energy of interaction ranging as low as - 119.676 to - 92.9545 kcal/mol for erythrin, Analogue showed the highest interactions with 3C45 (- 119.676 kcal/mol) followed by 2Q5S (- 118.398 kcal/mol), 1XU7 (- 117.341 kcal/mol), 3K35 (- 114.267 kcal/mol). Erythrin was found to fare better than the three clinically used antidiabetic compounds, metformin, repaglinide and sitagliptin. Further, the molecular interactions between erythrin and the diabetes related target proteins was established by analysing the interactions with associated amino acids. In silico pharmacokinetics and toxicity profile of erythrin using admetSAR software predicted erythrin as non-carcinogenic and non-mutagenic. The drug-likeliness was calculated using molsoft software respecting Lipinski's rule of five. The compound was found to comply with Lipinksi rules violating only one filter criterion. The study suggested that erythrin could be a potential anti-diabetic agent.
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Affiliation(s)
- Madhushree M V Rao
- Department of Biotechnology, Dayananda Sagar College of Engineering, Bangalore, 560078 India
| | - T P N Hariprasad
- Department of Life Science, JnanaBharathi, Bangalore University, Bangalore, 560056 India
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6
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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.
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Rama Krishna B, Ramakrishna S, Rajendra S, Madhusudana K, Mallavadhani UV. Synthesis of some novel orsellinates and lecanoric acid related depsides as α-glucosidase inhibitors. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2019; 21:1013-1027. [PMID: 29968482 DOI: 10.1080/10286020.2018.1490274] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 06/14/2018] [Indexed: 06/08/2023]
Abstract
Sixteen novel orsellinic esters (6a-l, 7a-d) along with four lecanoric acid related depsides (3a-c, 4) were synthesized and confirmed their structures by spectroscopic data (1H, 13C & HRMS). The synthesized compounds were evaluated for their in vitro α-glucosidase (Saccharomyces cerevisiae) inhibitory potential. Among the tested compounds, 3c (IC50: 140.9 μM) and 6c (IC50: 203.9 μM) displayed potent α-glucosidase inhibitory activity and found more active than the standard drug acarbose (IC50: 686.6 μM). Both the test compounds were subjected to in vivo antihyperglycemic activity using sucrose loaded model in Wistar rats and found compound 3c exhibited significant reduction in glucose levels.
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Affiliation(s)
- Boddu Rama Krishna
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Sistla Ramakrishna
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Department of Pharmacology & Toxicology, CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Sangaraju Rajendra
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Department of Pharmacology & Toxicology, CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Kuncha Madhusudana
- Department of Pharmacology & Toxicology, CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Uppuluri Venkata Mallavadhani
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
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8
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Ezzat SM, Bishbishy MHE, Habtemariam S, Salehi B, Sharifi-Rad M, Martins N, Sharifi-Rad J. Looking at Marine-Derived Bioactive Molecules as Upcoming Anti-Diabetic Agents: A Special Emphasis on PTP1B Inhibitors. Molecules 2018; 23:E3334. [PMID: 30558294 PMCID: PMC6321226 DOI: 10.3390/molecules23123334] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/10/2018] [Accepted: 12/13/2018] [Indexed: 12/03/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disease with high morbimortality rates. DM has two types: type 1, which is often associated with a total destruction of pancreatic beta cells, and non-insulin-dependent or type 2 diabetes mellitus (T2DM), more closely associated with obesity and old age. The main causes of T2DM are insulin resistance and/or inadequate insulin secretion. Protein-tyrosine phosphatase 1B (PTP1B) negatively regulates insulin signaling pathways and plays an important role in T2DM, as its overexpression may induce insulin resistance. Thus, since PTP1B may be a therapeutic target for both T2DM and obesity, the search for novel and promising natural inhibitors has gained much attention. Hence, several marine organisms, including macro and microalgae, sponges, marine invertebrates, sea urchins, seaweeds, soft corals, lichens, and sea grasses, have been recently evaluated as potential drug sources. This review provides an overview of the role of PTP1B in T2DM insulin signaling and treatment, and highlights the recent findings of several compounds and extracts derived from marine organisms and their relevance as upcoming PTP1B inhibitors. In this systematic literature review, more than 60 marine-derived metabolites exhibiting PTP1B inhibitory activity are listed. Their chemical classes, structural features, relative PTP1B inhibitory potency (assessed by IC50 values), and structure⁻activity relationships (SARs) that could be drawn from the available data are discussed. The upcoming challenge in the field of marine research-metabolomics-is also addressed.
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Affiliation(s)
- Shahira M Ezzat
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo 11562, Egypt.
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Science and Arts (MSA), Cairo 12566, Egypt.
| | - Mahitab H El Bishbishy
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Science and Arts (MSA), Cairo 12566, Egypt.
| | - Solomon Habtemariam
- Herbal Analysis Services UK & Pharmacognosy Research Laboratories, University of Greenwich, Central Avenue, Chatham-Maritime, Kent ME4 4TB, UK.
| | - Bahare Salehi
- Student Research Committee, Bam University of Medical Sciences, Bam 44340847, Iran.
| | - Mehdi Sharifi-Rad
- Department of Medical Parasitology, Zabol University of Medical Sciences, Zabol 61663-335, Iran.
| | - Natália Martins
- Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal.
- Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal.
| | - Javad Sharifi-Rad
- Zabol Medicinal Plants Research Center, Zabol University of Medical Sciences, Zabol 61615-585, Iran.
- Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, 599 Portage Avenue, Winnipeg, MB R3B 2G3, Canada.
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Three new species and one new combination of Gypsoplaca (lichenized Ascomycota) from the Hengduan Mountains in China. Mycol Prog 2018. [DOI: 10.1007/s11557-018-1396-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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10
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Protein tyrosine phosphatase 1B inhibitors from natural sources. Arch Pharm Res 2017; 41:130-161. [PMID: 29214599 DOI: 10.1007/s12272-017-0997-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 11/26/2017] [Indexed: 01/25/2023]
Abstract
Since PTP1B enzyme was discovered in 1988, it has captured the research community's attention. This landmark discovery has stimulated numerous research studies on a variety of human diseases, including cancer, inflammation, and diabetes. Tremendous progress has been made in finding PTP1B inhibitors and exploring PTP1B regulatory mechanisms. This review investigates for the natural PTP1B inhibitors, and focuses on the common characteristics of the discovered structures and structure-activity relationships. To facilitate understanding, all the natural compounds are here divided into five different classes (fatty acids, phenolics, terpenoids, steroids, and alkaloids), according to their skeletons. These PTP1B inhibitors of scaffold structures could serve as a theoretical basis for new concept drug discovery and design.
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Zhou YF, Shi HX, Hu K, Tang JW, Li XR, Du X, Sun HD, Wang LS, Pu JX. Gypmacrophin A, a Rare Pentacyclic Sesterterpenoid, Together with Three Depsides, Functioned as New Chemical Evidence for Gypsoplaca macrophylla (Zahlbr.) Timdal Identification. Molecules 2017; 22:molecules22101675. [PMID: 28991198 PMCID: PMC6151673 DOI: 10.3390/molecules22101675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 09/30/2017] [Accepted: 10/03/2017] [Indexed: 12/18/2022] Open
Abstract
The phytochemical investigation on 1 g of materials from Gypsoplaca macrophylla (Zahlbr.) Timdal resulted in the discovery of gypmacrophin A, a rare pentacyclic sesterterpenoid; brialmontin III, a new polysubstituted depside and two known ones, brialmontins I and II. The structure and absolute configurations of gypmacrophin A were elucidated by spectroscopic analyses and computational methods. Gypmacrophin A showed weak inhibition of AchE with an IC50 value of 32.03 μM. The four compounds provided new chemical evidence for G. macrophylla identification.
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Affiliation(s)
- Yuan-Fei Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
- Kunming College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, China.
| | - Hai-Xia Shi
- Key Laboratory for Plant Biodiversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Kun Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
- Kunming College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, China.
| | - Jian-Wei Tang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
- Kunming College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, China.
| | - Xing-Ren Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
- Kunming College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, China.
| | - Xue Du
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Li-Song Wang
- Key Laboratory for Plant Biodiversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Jian-Xin Pu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
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Potential of Lichen Compounds as Antidiabetic Agents with Antioxidative Properties: A Review. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:2079697. [PMID: 28491237 PMCID: PMC5405387 DOI: 10.1155/2017/2079697] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/31/2017] [Accepted: 02/20/2017] [Indexed: 11/22/2022]
Abstract
The advancement in the knowledge of potent antioxidants has uncovered the way for greater insight in the treatment of diabetic complications. Lichens are a rich resource of novel bioactive compounds and their antioxidant potential is well documented. Herein we review the antidiabetic potential of lichens which have received considerable attention, in the recent past. We have correlated the antidiabetic and the antioxidant potential of lichen compounds. The study shows a good accordance between antioxidant and antidiabetic activity of lichens and points out the need to look into gathering the scarce and scattered data on biological activities for effective utilization. The review establishes that the lichen extracts, especially of Parmotrema sp. and Ramalina sp. have shown promising potential in both antidiabetic and antioxidant assays. Ubiquitous compounds, namely, zeorin, methylorsellinate, methyl-β-orcinol carboxylate, methyl haematommate, lecanoric acid, salazinic acid, sekikaic acid, usnic acid, gyrophoric acid, and lobaric acid have shown promising potential in both antidiabetic as well as antioxidant assays highlighting their potential for effective treatment of diabetic mellitus and its associated complications. The available compilation of this data provides the future perspectives and highlight the need for further studies of this potent herbal source to harvest more beneficial therapeutic antidiabetic drugs.
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Nazaruk J, Borzym-Kluczyk M. The role of triterpenes in the management of diabetes mellitus and its complications. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2014; 14:675-690. [PMID: 26213526 PMCID: PMC4513225 DOI: 10.1007/s11101-014-9369-x] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 06/13/2014] [Indexed: 05/23/2023]
Abstract
Diabetes mellitus is a chronic metabolic disease which is a serious global problem. In 2010 an estimated 285 million people had diabetes and within the next 20 years this value is expected to almost double. Many antidiabetic therapies focus on improving insulin sensitivity, increasing insulin production, and/or decreasing the level of blood glucose. Although a number of synthetic medicines are available, drugs of natural origin have aroused great interest. Triterpenes seem to demonstrate adequate properties. Many experiments have shown that these compounds have several antidiabetic mechanisms. They can inhibit enzymes involved in glucose metabolism, prevent the development of insulin resistance and normalize plasma glucose and insulin levels. These natural compounds, in contrast to synthetic drugs, apart from producing a hypoglycemic effect have also been found to manifest hypolipidemic and anti-obesity activity. Triterpenes are also promising agents in the prevention of diabetic complications. They have strong antioxidant activity and inhibit the formation of advanced glycation end products, implicated in the pathogenesis of diabetic nephropathy, embryopathy, neuropathy or impaired wound healing. Until now very few clinical studies have been concerned with the application of triterpenes in treating diabetes. However, due to their great therapeutic potential, these compounds deserve special attention.
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Affiliation(s)
- J. Nazaruk
- Department of Pharmacognosy, Medical University of Białystok, Mickiewicza 2a Str., 15-089 Białystok, Poland
| | - M. Borzym-Kluczyk
- Department of Pharmaceutical Biochemistry, Medical University of Białystok, Mickiewicza 2a Str., 15-089 Białystok, Poland
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14
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New diterpene furanoids from the Antarctic lichen Huea sp. Bioorg Med Chem Lett 2012; 22:7393-6. [DOI: 10.1016/j.bmcl.2012.10.063] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 10/12/2012] [Accepted: 10/15/2012] [Indexed: 11/21/2022]
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15
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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.
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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
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