1
|
Srinivasan K, Nampoothiri M, Khandibharad S, Singh S, Nayak AG, Hariharapura RC. Proteomic diversity of Russell's viper venom: exploring PLA2 isoforms, pharmacological effects, and inhibitory approaches. Arch Toxicol 2024:10.1007/s00204-024-03849-5. [PMID: 39181947 DOI: 10.1007/s00204-024-03849-5] [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: 06/28/2024] [Accepted: 08/19/2024] [Indexed: 08/27/2024]
Abstract
Snakebite envenomation is a serious health concern in tropical regions, resulting in high mortality. The World Health Organization (WHO) has declared it a neglected tropical disease and is working on strategies to reduce mortality. Russell's viper (Daboia russelii) is one of the most abundant venomous snakes found across Southeast Asia. Proteomic analysis of Russell's viper venom has demonstrated variation, with phospholipase A2 (PLA2) being the most abundant toxin across geographic boundaries. PLA2, a major constituent of the low-molecular-weight fraction of snake venom, hydrolyses phospholipids at the sn-2 position, releasing arachidonic acid and lysophospholipids. They are reported to cause various pharmacological effects, including hemolysis, anticoagulation, neurotoxicity, myotoxicity, and oedema. Though administration of antivenoms (ASV) is the primary treatment for envenomation, it has many drawbacks. Besides causing hypersensitivity reactions and life-threatening anaphylaxis, treatment with ASV is further complicated due to its inability to neutralize low-molecular-weight toxins. Thus, there is a greater need to produce next-generation antivenoms that can target specific toxins in the venom. In this review, we explored the classification of Russell's viper and the variation in its proteomic profile across Southeast Asia to date. In addition, we have also summarized the mechanism of action of PLA2 and discussed various isoforms of PLA2 found across different regions with their respective pharmacological effects. Finally, the drawbacks of commercially available antivenoms and the molecules investigated for inhibiting the low-molecular-weight toxin, PLA2 are discussed.
Collapse
Affiliation(s)
- Kishore Srinivasan
- Department of Pharmaceutical Biotechnology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Madhavan Nampoothiri
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Shweta Khandibharad
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Ganeshkhind, Pune, Maharashtra, India
| | - Shailza Singh
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Ganeshkhind, Pune, Maharashtra, India
| | - Akshatha Ganesh Nayak
- Division of Biochemistry, Department of Basic Medical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Raghu Chandrashekar Hariharapura
- Department of Pharmaceutical Biotechnology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India.
| |
Collapse
|
2
|
Lagunas-Rangel FA. Prediction of resveratrol target proteins: a bioinformatics analysis. J Biomol Struct Dyn 2024; 42:1088-1097. [PMID: 37011009 DOI: 10.1080/07391102.2023.2196698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/22/2023] [Indexed: 04/04/2023]
Abstract
Resveratrol is a natural compound with a wide range of biological functions that generate health benefits under normal conditions and in multiple diseases. This has attracted the attention of the scientific community, which has revealed that this compound exerts these effects through its action on different proteins. Despite the great efforts made, due to the challenges involved, not all the proteins with which resveratrol interacts have yet been identified. In this work, using protein target prediction bioinformatics systems, RNA sequencing analysis and protein-protein interaction networks, 16 proteins were identified as potential targets of resveratrol. Due to its biological relevance, the interaction of resveratrol with the predicted target CDK5 was further investigated. A docking analysis found that resveratrol can interact with CDK5 and be positioned in its ATP-binding pocket. Resveratrol forms hydrogen bonds between its three hydroxyl groups (-OH) and CDK5 residues C83, D86, K89 and D144. Molecular dynamics analysis showed that these bonds allow resveratrol to remain in the pocket and suggest inhibition of CDK5 activity. All this allows us to better understand how resveratrol acts and to consider CDK5 inhibition within its biological actions, mainly in neurodegenerative diseases where this protein has been shown to be relevant.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Francisco Alejandro Lagunas-Rangel
- Department of Genetics and Molecular Biology, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| |
Collapse
|
3
|
Ali SI, Salama A. Natural Immunomodulatory Agents as a Complementary Therapy for Poxviruses. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1451:337-354. [PMID: 38801589 DOI: 10.1007/978-3-031-57165-7_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Poxviruses target innate immunity mediators such as tumor necrosis factors, interleukins, interferons, complement, and chemokines. It also targets adaptive immunity such as CD4+ T cells, CD4+ T cells, and B cells. Emerging of the recent epidemic of monkeypox virus (MPXV), a zoonotic disease native to Central and Western Africa, besides the lack of permitted treatments for poxviruses infections, encouraged researchers to identify effective inhibitors to help in preventing and treating poxviruses infections. Natural bioactive components, particularly polyphenolics, are promising for creating powerful antioxidants, anti-inflammatory, immune-stimulating, and antiviral agents. As a result, they are potentially effective therapies for preventing and treating viral diseases, such as infections caused by poxviruses including the recent pandemic MPXV. Polyphenolics: rosmarinic acid, caffeic acid, resveratrol, quercitrin, myricitrin, gingerol, gallotannin, and propolis-benzofuran A, as well as isoquinoline alkaloids: galanthamine and thalimonine represent prospective antiviral agents against MPXV, they can inhibit MPXV and other poxviruses via targeting different viral elements including DNA Topoisomerase I (TOP1), Thymidine Kinase (TK), serine/threonine protein kinase (Ser/Thr kinase), and protein A48R. The bioactive extracts of different traditional plants including Guiera senegalensis, Larrea tridentata, Sarracenia purpurea, Kalanchoe pinnata (Lam.) Pers., Zingiber officinale Roscoe, Quercus infectoria, Rhus chinensis, Prunella vulgaris L., Salvia rosmarinus, and Origanum vulgare also can inhibit the growth of different poxviruses including MPXV, vaccinia virus (VACV), variola virus, buffalopox virus, fowlpox virus, and cowpox virus. There is an urgent need for additional molecular studies to identify and confirm the anti-poxviruses properties of various natural bioactive components, especially those that showed potent antiviral activity against other viruses.
Collapse
Affiliation(s)
- Sami I Ali
- Plant Biochemistry Department, National Research Centre (NRC), 33 El Buhouth St. (Former El-Tahrir St.), Dokki, Cairo, 12622, Egypt.
| | - Abeer Salama
- Pharmacology Department, National Research Centre (NRC), 33 El Buhouth St. (Former El-Tahrir St.), Dokki, Cairo, 12622, Egypt
| |
Collapse
|
4
|
Manson A, Winter T, Aukema HM. Phospholipase A 2 enzymes differently impact PUFA release and oxylipin formation ex vivo in rat hearts. Prostaglandins Leukot Essent Fatty Acids 2023; 191:102555. [PMID: 36878084 DOI: 10.1016/j.plefa.2023.102555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 02/16/2023] [Accepted: 02/23/2023] [Indexed: 03/04/2023]
Abstract
Phospholipase A2 (PLA2) enzymes cleave cell membrane phospholipids and release polyunsaturated fatty acids (PUFA), which can be converted into oxylipins. However, little is known about PLA2 preference for PUFA, and even less is known about how this further impacts oxylipin formation. Therefore, we investigated the role of different PLA2 groups in PUFA release and oxylipin formation in rat hearts. Sprague-Dawley rat heart homogenates were incubated without or with varespladib (VAR), methyl arachidonyl fluorophosphonate (MAFP) or EDTA. Free PUFA and oxylipins were determined by HPLC-MS/MS, and isoform expressions by RT-qPCR. Inhibition of sPLA2 IIA and/or V by VAR reduced the release of ARA and DHA, but only DHA oxylipins were inhibited. MAFP reduced the release of ARA, DHA, ALA, and EPA, and the formation of ARA, LA, DGLA, DHA, ALA, and EPA oxylipins. Interestingly, cyclooxygenase and 12-lipoxygenase oxylipins were not inhibited. mRNA expression levels of sPLA2 and iPLA2 isoforms were highest whereas levels of cPLA2 were low, consistent with activity. In conclusion, sPLA2 enzymes lead to the formation of DHA oxylipins, while iPLA2 is likely responsible for the formation of most other oxylipins in healthy rat hearts. Oxylipin formation cannot be implied from PUFA release, thus, both should be evaluated in PLA2 activity studies.
Collapse
Affiliation(s)
- Anne Manson
- Food and Human Nutritional Sciences, University of Manitoba, Winnipeg MB, Canada; Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Winnipeg MB, Canada
| | - Tanja Winter
- Food and Human Nutritional Sciences, University of Manitoba, Winnipeg MB, Canada; Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Winnipeg MB, Canada
| | - Harold M Aukema
- Food and Human Nutritional Sciences, University of Manitoba, Winnipeg MB, Canada; Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Winnipeg MB, Canada.
| |
Collapse
|
5
|
Adrião AAX, dos Santos AO, de Lima EJSP, Maciel JB, Paz WHP, da Silva FMA, Pucca MB, Moura-da-Silva AM, Monteiro WM, Sartim MA, Koolen HHF. Plant-Derived Toxin Inhibitors as Potential Candidates to Complement Antivenom Treatment in Snakebite Envenomations. Front Immunol 2022; 13:842576. [PMID: 35615352 PMCID: PMC9126284 DOI: 10.3389/fimmu.2022.842576] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
Snakebite envenomations (SBEs) are a neglected medical condition of global importance that mainly affect the tropical and subtropical regions. Clinical manifestations include pain, edema, hemorrhage, tissue necrosis, and neurotoxic signs, and may evolve to functional loss of the affected limb, acute renal and/or respiratory failure, and even death. The standard treatment for snake envenomations is antivenom, which is produced from the hyperimmunization of animals with snake toxins. The inhibition of the effects of SBEs using natural or synthetic compounds has been suggested as a complementary treatment particularly before admission to hospital for antivenom treatment, since these alternative molecules are also able to inhibit toxins. Biodiversity-derived molecules, namely those extracted from medicinal plants, are promising sources of toxin inhibitors that can minimize the deleterious consequences of SBEs. In this review, we systematically synthesize the literature on plant metabolites that can be used as toxin-inhibiting agents, as well as present the potential mechanisms of action of molecules derived from natural sources. These findings aim to further our understanding of the potential of natural products and provide new lead compounds as auxiliary therapies for SBEs.
Collapse
Affiliation(s)
- Asenate A. X. Adrião
- Post Graduate Program in Biodiversity and Biotechnology BIONORTE, Superior School of Health Sciences, Amazonas State University, Manaus, Brazil
| | - Aline O. dos Santos
- Post Graduate Program in Biodiversity and Biotechnology BIONORTE, Superior School of Health Sciences, Amazonas State University, Manaus, Brazil
| | - Emilly J. S. P. de Lima
- Post Graduate Program in Biodiversity and Biotechnology BIONORTE, Superior School of Health Sciences, Amazonas State University, Manaus, Brazil
| | - Jéssica B. Maciel
- Post Graduate Program in Tropical Medicine, Department of Teaching and Research, Dr. Heitor Vieira Dourado Tropical Medicine Foundation, Manaus, Brazil
| | - Weider H. P. Paz
- Post Graduate Program in Chemistry, Department of Chemistry, Federal University of Amazonas, Manaus, Brazil
| | - Felipe M. A. da Silva
- Post Graduate Program in Chemistry, Department of Chemistry, Federal University of Amazonas, Manaus, Brazil
- Multidisciplinary Support Center, Federal University of Amazonas, Manaus, Brazil
| | - Manuela B. Pucca
- Medical School, Federal University of Roraima, Boa Vista, Brazil
| | - Ana M. Moura-da-Silva
- Post Graduate Program in Tropical Medicine, Department of Teaching and Research, Dr. Heitor Vieira Dourado Tropical Medicine Foundation, Manaus, Brazil
- Laboratory of Immunopathology, Institute Butantan, São Paulo, Brazil
| | - Wuelton M. Monteiro
- Post Graduate Program in Tropical Medicine, Department of Teaching and Research, Dr. Heitor Vieira Dourado Tropical Medicine Foundation, Manaus, Brazil
| | - Marco A. Sartim
- Post Graduate Program in Biodiversity and Biotechnology BIONORTE, Superior School of Health Sciences, Amazonas State University, Manaus, Brazil
- Post Graduate Program in Tropical Medicine, Department of Teaching and Research, Dr. Heitor Vieira Dourado Tropical Medicine Foundation, Manaus, Brazil
- University Nilton Lins, Manaus, Brazil
| | - Hector H. F. Koolen
- Post Graduate Program in Biodiversity and Biotechnology BIONORTE, Superior School of Health Sciences, Amazonas State University, Manaus, Brazil
- Post Graduate Program in Tropical Medicine, Department of Teaching and Research, Dr. Heitor Vieira Dourado Tropical Medicine Foundation, Manaus, Brazil
- Post Graduate Program in Chemistry, Department of Chemistry, Federal University of Amazonas, Manaus, Brazil
| |
Collapse
|
6
|
Ferreira SDS, Silva DPD, Torres-Rêgo M, Silva-Júnior AAD, Fernandes-Pedrosa MDF. The potential of phenolic acids in therapy against snakebites: A review. Toxicon 2021; 208:1-12. [PMID: 34979199 DOI: 10.1016/j.toxicon.2021.12.019] [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: 10/19/2021] [Revised: 12/06/2021] [Accepted: 12/27/2021] [Indexed: 02/07/2023]
Abstract
Ophidism is a serious health problem worldwide and is included in the World Health Organization's (WHO's) list of Neglected Tropical Diseases. Although snakebite envenoming requires emergency treatment, currently the only treatment recommended by WHO is serotherapy, which has some disadvantages such as low access to the rural population, low effectiveness in neutralizing local effects, and high cost. In this context, new alternatives for the treatment of snakebites are required. The use of plant-derived compounds to inhibit the effects caused by snake venoms has been the object of a number of studies in recent years. This review aims to provide an up-to-date overview of the use of phenolic acids with therapeutic application against envenomation by snakes of different species. In this sense, structural analysis in silico and biological activities in vivo and in vitro were reported. The acids were subdivided into derivatives of benzoic and cinnamic acids, with derivatives of cinnamic acids being the most studied. Studies have revealed that these compounds are capable of inhibiting local and systemic effects induced by envenomation, and structural analyses indicate that the acids interact with important sites responsible for the action of toxins. Thus, it was reported that phenolic acids showed antiophidic potential, providing insights for future research to develop complementary drugs for the treatment of snakebites.
Collapse
Affiliation(s)
- Sarah de Sousa Ferreira
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), College of Pharmacy, Federal University of Rio Grande do Norte, Avenue General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal, 59012-570, Brazil.
| | - Diana Pontes da Silva
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), College of Pharmacy, Federal University of Rio Grande do Norte, Avenue General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal, 59012-570, Brazil.
| | - Manoela Torres-Rêgo
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), College of Pharmacy, Federal University of Rio Grande do Norte, Avenue General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal, 59012-570, Brazil; Graduate Program of Chemistry, Chemistry Institute, Federal University of Rio Grande do Norte, Avenue Senador Salgado Filho, 3000, Lagoa Nova, Natal, 59072-970, Brazil.
| | - Arnóbio Antônio da Silva-Júnior
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), College of Pharmacy, Federal University of Rio Grande do Norte, Avenue General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal, 59012-570, Brazil.
| | - Matheus de Freitas Fernandes-Pedrosa
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), College of Pharmacy, Federal University of Rio Grande do Norte, Avenue General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal, 59012-570, Brazil.
| |
Collapse
|
7
|
Claunch NM, Holding M, Frazier JT, Huff EM, Schonour RB, Vernasco B, Moore IT, Rokyta DR, Taylor EN. Experimental Manipulation of Corticosterone Does Not Affect Venom Composition or Functional Activity in Free-Ranging Rattlesnakes. Physiol Biochem Zool 2021; 94:286-301. [PMID: 34166170 DOI: 10.1086/714936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractVenom is an integral feeding trait in many animal species. Although venom often varies ontogenetically, little is known about the proximate physiological mediators of venom variation within individuals. The glucocorticoid hormone corticosterone (CORT) can alter the transcription and activation of proteins, including homologues of snake venom components such as snake venom metalloproteinases (SVMPs) and phospholipase A2 (PLA2). CORT is endogenously produced by snakes, varies seasonally and also in response to stress, and is a candidate endogenous mediator of changes in venom composition and functional activity. Here, we tested the hypothesis that CORT induces changes in snake venom by sampling the venom of wild adult rattlesnakes before and after they were treated with either empty (control) or CORT-filled (treatment) Silastic implants. We measured longitudinal changes in whole-venom composition, whole-venom total protein content, and enzymatic activity of SVMP and PLA2 components of venom. We also assessed the within-individual repeatability of venom components. Despite successfully elevating plasma CORT in the treatment group, we found no effect of CORT treatment or average plasma CORT level on any venom variables measured. Except for total protein content, venom components were highly repeatable within individuals ([Formula: see text]). Our results indicate that the effects of CORT, a hormone commonly associated with stress and metabolic functions, in adult rattlesnake venom are negligible. Our findings bode well for venom researchers and biomedical applications that rely on the consistency of venoms produced from potentially stressed individuals and provide an experimental framework for future studies of proximate mediators of venom variation across an individual's life span.
Collapse
|
8
|
Wang M, Xu J, Zhang Y, Yang N, Ge W, Song R. Integrated multiplatform-based metabonomics and network analysis to explore the mechanism of Polygonum cuspidatum on hyperlipidemia. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1176:122769. [PMID: 34058527 DOI: 10.1016/j.jchromb.2021.122769] [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] [Received: 09/11/2020] [Revised: 01/07/2021] [Accepted: 05/11/2021] [Indexed: 10/21/2022]
Abstract
Hyperlipidemia is a major risk factor and pathological basis for cardiovascular diseases. Polygonum cuspidatum (HZ), a famous traditional Chinese medicine, is frequently used to treat hyperlipidemia. However, little is known about its underlying mechanism. Herein, an integrated approach combining multiplatform-based metabonomics and network analysis was adopted to elucidate the ameliorative mechanism of HZ on hyperlipidemia. The global metabolomic characters of HZ on hyperlipidemia were investigated by GC-MS and LC-MS based metabonomics. Significant metabonomic alterations were observed in hyperlipidemic group, which could be restored by HZ supplementation. Furthermore, the drug-ingredients-target-metabolic pathway network was constructed, and the result indicated that HZ exhibited hypolipidemic efficacy through resveratrol, polydatin, torachrysone-8-O-β-D-(6'-oxayl)-glucoside, physciondiglucoside, (+)-catechin, β-sitosterol, quercetin, luteolin and physovenine acting on phospholipase A2, unspecific monooxygenase, arachidonate 15-lipoxygenase, aromatic-L-amino-acid decarboxylase, alcohol dehydrogenase and triacylglycerol lipase. In conclusion, this study explored potential mechanism of HZ on hyperlipidemia with the aid of the integrated approach combining multiplatform-based metabonomics and network analysis, which might provide a theoretical basis for the clinical application of HZ.
Collapse
Affiliation(s)
- Min Wang
- China Pharmaceutical University Nanjing Drum Tower Hospital, Nanjing 210000, Jiangsu Province, China
| | - Jie Xu
- China Pharmaceutical University Nanjing Drum Tower Hospital, Nanjing 210000, Jiangsu Province, China; Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210000, China
| | - Yuxin Zhang
- China Pharmaceutical University Nanjing Drum Tower Hospital, Nanjing 210000, Jiangsu Province, China
| | - Na Yang
- China Pharmaceutical University Nanjing Drum Tower Hospital, Nanjing 210000, Jiangsu Province, China
| | - Weihong Ge
- China Pharmaceutical University Nanjing Drum Tower Hospital, Nanjing 210000, Jiangsu Province, China.
| | - Rui Song
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210000, China.
| |
Collapse
|
9
|
Behl T, Mehta K, Sehgal A, Singh S, Sharma N, Ahmadi A, Arora S, Bungau S. Exploring the role of polyphenols in rheumatoid arthritis. Crit Rev Food Sci Nutr 2021; 62:5372-5393. [PMID: 33998910 DOI: 10.1080/10408398.2021.1924613] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic, inflammatory and autoimmune disorder which is mainly characterized by inflammation in joints, bone erosions and cartilaginous destruction that leads to joint dysfunction, deformation, and/or permanent functional impairment. The prevalence of RA is increasing, incurring a considerable burden on healthcare systems globally. The exact etiology of RA is unknown, with various pathways implicated in its pathophysiology. Non-steroidal anti-inflammatory drugs (NSAIDs) including celecoxib, diclofenac and ibuprofen, disease-modifying anti-rheumatic drugs (DMARD) including azathioprine, methotrexate and cyclosporine, biological agents including anakinra, infliximab, and rituximab and immunosuppressants are used for symptomatic relief in patients with RA, but these medications have severe adverse effects such as gastric ulcers, hypertension, hepatotoxicity and renal abnormalities which restrict their use in the treatment of RA; new RA treatments with minimal side-effects are urgently required. There is accumulating evidence that dietary polyphenols may show therapeutic efficacy in RA through their antioxidant, anti-inflammatory, apoptotic, and immunosuppressant activities and modulation of the tumor necrosis factor-α (TNF-α), interleukin (IL)-6, mitogen-activated protein kinase (MAPK), IL-1β, c-Jun N-terminal kinase (JNK), and nuclear factor κ light-chain-enhancer of activated B cell (NF-κB) pathways. While resveratrol, genistein, carnosol, epigallocatechin gallate, curcumin, kaempferol, and hydroxytyrosol have also been studied for the treatment of RA, the majority of data are derived from animal models. Here, we review the various pathways involved in the development of RA and the preclinical and clinical data supporting polyphenols as potential therapeutic agents in RA patients. Our review highlights that high-quality clinical studies are required to decisively establish the anti-rheumatic efficacy of polyphenolic compounds.
Collapse
Affiliation(s)
- Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Keshav Mehta
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Amirhossein Ahmadi
- Faculty of Pharmacy, Mazandaran University of Medial Sciences, Sari, Iran
| | - Sandeep Arora
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
| |
Collapse
|
10
|
Anti-5'-Nucleotidases (5'-ND) and Acetylcholinesterase (AChE) Activities of Medicinal Plants to Combat Echis carinatus Venom-Induced Toxicities. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6631042. [PMID: 33614782 PMCID: PMC7878093 DOI: 10.1155/2021/6631042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/11/2021] [Accepted: 01/23/2021] [Indexed: 11/17/2022]
Abstract
Echis carinatus is one of the highly venomous snakes of Pakistan that is responsible for numerous cases of envenomation and deaths. In Pakistan, medicinal plants are commonly used traditionally for snakebite treatment because of their low cost and easy availability in comparison with antivenom. The current research is aimed at evaluating the inhibitory activity of Pakistani medicinal plants against acetylcholinesterase and 5′-nucleotidases present in Echis carinatus venom. Acetylcholinesterase and 5′-nucleotidase enzymatic assays were performed at different venom concentrations to check the activity of these enzymes. Methanolic extracts from different parts of plants were used for in vitro determination of their inhibitory activity against 5′-nucleotidases in snake venom. Active methanolic extracts were subsequently fractioned using different solvents, and these fractions were also assessed for their anti-5′-nucleotidase activity. Results of this study exhibited that Eugenia jambolana Willd. ex O. Berg, Rubia cordifolia L., Trichodesma indicum (L.) R. Br., Calotropis procera (Wild.) R. Br., Curcuma longa L., and Fagonia arabica L. were able to significantly (p > 0.5) neutralize the 5′-nucleotidase activity by 88%, 86%, 86%, 85%, 83.7%, and 83%, respectively, compared with a standard antidote (snake venom antiserum). Thus, this study indicates that these plants possess the potential to neutralize one of the toxic enzymatic components of Echis carinatus venom and hence can help to augment the future efforts of developing alternative therapy for the management of snakebites.
Collapse
|
11
|
Yokoyama T, Suzuki R, Mizuguchi M. Crystal structure of death-associated protein kinase 1 in complex with the dietary compound resveratrol. IUCRJ 2021; 8:131-138. [PMID: 33520249 PMCID: PMC7792996 DOI: 10.1107/s2052252520015614] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/26/2020] [Indexed: 06/12/2023]
Abstract
Death-associated protein kinase 1 (DAPK1) is a large multidomain protein with an N-terminal serine/threonine protein kinase domain. DAPK1 is considered to be a promising molecular target for the treatment of Alzheimer's disease (AD). In the present study, the inhibitory potency of resveratrol (RSV), a dietary polyphenol found in red wine, against the catalytic activity of DAPK1 was investigated. Kinetic and fluorescent probe competitive binding analyses revealed that RSV directly inhibited the catalytic activity of DAPK1 by binding to the ATP-binding site. Crystallographic analysis of DAPK1 in complex with RSV revealed that the A-ring of RSV occupied the nucleobase-binding position. Determination of the binding mode provided a structural basis for the design of more potent DAPK1 inhibitors. In conclusion, the data here clearly show that RSV is an ATP-competitive inhibitor of DAPK1, encouraging speculation that RSV may be useful for the development of AD inhibitors.
Collapse
Affiliation(s)
- Takeshi Yokoyama
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, Toyama 930-0914, Japan
| | - Ryoya Suzuki
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, Toyama 930-0914, Japan
| | - Mineyuki Mizuguchi
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, Toyama 930-0914, Japan
| |
Collapse
|
12
|
Biochemical and functional characterization of a new recombinant phospholipase A 2 inhibitor from Crotalus durissus collilineatus snake serum. Int J Biol Macromol 2020; 164:1545-1553. [PMID: 32735921 DOI: 10.1016/j.ijbiomac.2020.07.221] [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: 05/02/2020] [Revised: 07/08/2020] [Accepted: 07/24/2020] [Indexed: 11/20/2022]
Abstract
Phospholipase A2 plays an important role in many diseases. Thus, the production of bioactive molecules, which can modulate PLA2 activity, became an important target for the pharmaceutical industry. Previously, we demonstrated the inhibitory and anti-angiogenic effect of γCdcPLI, the natural PLA2inhibitor from Crotalus durissus collilineatus. The aim of the present study was to recombinantly express the γCdcPLI inhibitor and analyze its biochemical and functional characteristics. Based on the amino acid sequence from the natural protein, we designed a synthetic gene for production of a non-tagged recombinant recγCdcPLI using the pHis-Parallel2 vector. To enable disulfide bond formation, protein expression was performed using E. coli Rosetta-gamiB. The protein was purified by anion and affinity chromatography with a yield of 5 mg/L. RecγCdcPLI showed similar secondary structure in CD and FTIR, revealing predominately β-strands. Analogous to the natural protein, recγCdcPLI was able to form oligomers of ~5.5 nm. The inhibitor was efficiently binding to PLA2 from honeybee (Kd = 1.48 μM) and was able to inhibit the PLA2 activity. Furthermore, it decreased the vessel formation in HUVEC cells, suggesting an anti-angiogenic potential. Heterologous production of recγCdcPLI is highly efficient and thus enables enhanced drug design for treatment of diseases triggered by PLA2 activity.
Collapse
|
13
|
Sharifpour S, Fakhraee S, Behjatmanesh-Ardakani R. Insights into the mechanism of inhibition of phospholipase A2 by resveratrol: An extensive molecular dynamics simulation and binding free energy calculation. J Mol Graph Model 2020; 100:107649. [PMID: 32739638 DOI: 10.1016/j.jmgm.2020.107649] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 10/23/2022]
Abstract
Phospholipase A2 (PLA2) is one of the enzymes involved in the development of cardiovascular diseases, vascular inflammation, risk of heart attacks, and strokes. This enzyme is responsible for catalyzing the hydrolytic cleavage of ester bonds of phospholipids in the biological pathway of inflammation. To prevent the undesired hydrolysis of phospholipids, the catalytic activity of PLA2 needs to be blocked. Resveratrol is a plant-derived polyphenol inhibitor, proven to have anti-inflammatory properties. However, there is still substantial ambiguity about its inhibitory function. The present study uncovers a detailed molecular mechanism behind the resveratrol action in inhibition of PLA2, by applying and comparing two 200-ns molecular dynamics simulations. The results of structural analyses revealed that the binding of resveratrol to PLA2 reduces the content of β-sheets and increases a 5-helix to PLA2 structure, producing more folding and stability in protein. In the active site, the resveratrol is placed between the N-terminal α-helix and the newly formed 5-helix through the hydrophobic interactions with ILE19 and LEU3 residues, as well as the hydrogen bond interactions. These interactions play the role of a network at the entrance of the enzyme active site and prevent the penetration of water molecules into the PLA2 cavity. A high occupancy hydrogen bonding has been identified between SER23 of the protein and hydroxyl group of resveratrol. Furthermore, the estimation of binding free energy verified the binding affinity of resveratrol is thermodynamically sufficient to be stably bounded to PLA2. It also proved that the van der Waals interactions, particularly hydrophobic interactions, have the most significant role in PLA2-resveratrol binding and stability. Overall, our results provide useful information on the stepwise mechanism of the inhibition of PLA2 enzyme by resveratrol, as a target for improving the pharmacological applications.
Collapse
Affiliation(s)
- Sajedeh Sharifpour
- Department of Chemistry, Payame Noor University, 19395-3697, Tehran, Iran
| | - Sara Fakhraee
- Department of Chemistry, Payame Noor University, 19395-3697, Tehran, Iran.
| | | |
Collapse
|
14
|
Bezerra-Filho CS, Barboza JN, Souza MT, Sabry P, Ismail NS, de Sousa DP. Therapeutic Potential of Vanillin and its Main Metabolites to Regulate the Inflammatory Response and Oxidative Stress. Mini Rev Med Chem 2019; 19:1681-1693. [DOI: 10.2174/1389557519666190312164355] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 12/11/2022]
Abstract
Many phenolic compounds found in foods and medicinal plants have shown interesting
therapeutic potential and have attracted the attention of the pharmaceutical industry as promising
pharmacologically active compounds in health promotion and disease prevention. Vanillin is a phenolic
aldehyde, widely used as a flavoring agent in the food, pharmaceutical, and cosmetics industries. A
variety of pharmacological activities has been attributed to this compound and its main metabolites,
vanillic acid and vanillyl alcohol, including their anti-inflammatory ability. The relationship of the anti-
inflammatory effects of vanillin, vanillic acid, and vanillyl alcohol and their actions on oxidative
stress is well established. Considering that the inflammatory process is related to several pathologies,
including new diseases with few therapeutic options, and limited efficiency, the search for effective
treatment strategies and discovery of new anti-inflammatory agents capable of modulating inflammation
becomes necessary. Therefore, in this review, we discuss the therapeutic potential of vanillin and
its main metabolites for the treatment of inflammatory diseases and their actions on redox status. In
addition, the molecular docking evaluation of vanillin, its metabolites and isoeugenol were carried out
into the phospholipase A2 binding site.
Collapse
Affiliation(s)
| | - Joice N. Barboza
- Department of Pharmaceutical Sciences, Universidade Federal da Paraiba, Joao Pessoa, Brazil
| | - Marilia T.S. Souza
- Department of Pharmacy, Universidade Federal de Sergipe, Sao Cristóvao, Brazil
| | - Peter Sabry
- National Organization for Drug Control and Research, Cairo, Egypt
| | - Nasser S.M. Ismail
- Pharmaceutical Chemistry Department, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt, Cairo, Egypt
| | - Damião P. de Sousa
- Department of Pharmaceutical Sciences, Universidade Federal da Paraiba, Joao Pessoa, Brazil
| |
Collapse
|
15
|
Gómez-Betancur I, Gogineni V, Salazar-Ospina A, León F. Perspective on the Therapeutics of Anti-Snake Venom. Molecules 2019; 24:E3276. [PMID: 31505752 PMCID: PMC6767026 DOI: 10.3390/molecules24183276] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 09/04/2019] [Accepted: 09/06/2019] [Indexed: 01/22/2023] Open
Abstract
Snakebite envenomation is a life-threatening disease that was recently re-included as a neglected tropical disease (NTD), affecting millions of people in tropical and subtropical areas of the world. Improvement in the therapeutic approaches to envenomation is required to palliate the morbidity and mortality effects of this NTD. The specific therapeutic treatment for this NTD uses snake antivenom immunoglobulins. Unfortunately, access to these vital drugs is limited, principally due to their cost. Different ethnic groups in the affected regions have achieved notable success in treatment for centuries using natural sources, especially plants, to mitigate the effects of snake envenomation. The ethnopharmacological approach is essential to identify the potential metabolites or derivatives needed to treat this important NTD. Here, the authors describe specific therapeutic snakebite envenomation treatments and conduct a review on different strategies to identify the potential agents that can mitigate the effects of the venoms. The study also covers an increased number of literature reports on the ability of natural sources, particularly plants, to treat snakebites, along with their mechanisms, drawbacks and future perspectives.
Collapse
Affiliation(s)
- Isabel Gómez-Betancur
- Ophidism-Scorpionism Program, Faculty of Pharmaceutical and Food Sciences, University of Antioquia UdeA, Medellín 1226, Colombia.
| | - Vedanjali Gogineni
- Analytical Department, Cambrex Pharmaceuticals, Charles City, IA 50616, USA.
| | - Andrea Salazar-Ospina
- Research group in Pharmacy Regency Technology, Faculty of Pharmaceutical and Food Sciences University of Antioquia UdeA, Medellín 1226, Colombia.
| | - Francisco León
- College of Pharmacy, University of Florida, Gainesville, FL 32610, USA.
| |
Collapse
|
16
|
Khan H, Sureda A, Belwal T, Çetinkaya S, Süntar İ, Tejada S, Devkota HP, Ullah H, Aschner M. Polyphenols in the treatment of autoimmune diseases. Autoimmun Rev 2019; 18:647-657. [PMID: 31059841 PMCID: PMC6588481 DOI: 10.1016/j.autrev.2019.05.001] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 01/03/2019] [Indexed: 02/06/2023]
Abstract
In addition to protecting body from infections and diseases, the immune system produces auto-antibodies that can cause complex autoimmune disorders, such as Type I diabetes, primary biliary cirrhosis, rheumatoid arthritis, and multiple sclerosis, to name a few. In such cases, the immune system fails to recognize between foreign agents and its own body cells. Different factors, such as genetic factors (CD25, STAT4), epigenetic factors (DNA methylation, histone modifications) and environmental factors (xenobiotics, drugs, hormones) trigger autoimmunity. Glucocorticoids, non-steroidal anti-inflammatory drugs (NSAIDs), immunosuppressive and biological agents are currently used to manage autoimmune diseases of different origins. However, complete cure remains elusive. Many dietary and natural products including polyphenols have been widely studied as possible alternative treatment strategies for the management of autoimmune disorders. Polyphenols possess a wide-range of pharmacological and therapeutic properties, including antioxidant and anti-inflammatory activities. As immunomodulatory agents, polyphenols are emerging pharmaceutical tools for management of various autoimmune disorders including vitiligo, ulcerative colitis and multiple sclerosis (MS). Polyphenols activate intracellular pathways such as arachidonic acid dependent pathway, nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signaling pathway, mitogen-activated protein kinases (MAPKs) pathway, phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway and epigenetic modulation, which regulate the host's immune response. This timely review discusses putative points of action of polyphenols in autoimmune diseases, characterizing their efficacy and safety as therapeutic agents in managing autoimmune disorders.
Collapse
Affiliation(s)
- Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan, 23200, KPK, Pakistan; University of Balearic Islands, E-07122 Palma de Mallorca, Spain.
| | - Antoni Sureda
- Research Group on Community Nutrition and Oxidative Stress, University of Balearic Islands & CIBEROBN (Physiopathology of Obesity and Nutrition CB12/03/30038), University of the Balearic Islands, E-07122 Palma de Mallorca, Spain
| | - Tarun Belwal
- G.B. Pant National Institute of Himalayan Environment and Sustainable Development, Kosi-Katarmal, Almora, Uttarakhand, India
| | - Sümeyra Çetinkaya
- Biotechnology Research Center of Ministry of Agriculture and Forestry, 06330, Yenimahalle, Ankara, Turkey
| | - İpek Süntar
- Department of Pharmacognosy Faculty of Pharmacy Gazi University, 06330 Etiler Ankara, Turkey
| | - Silvia Tejada
- Laboratory of neurophysiology, Biology Department & CIBEROBN (Physiopathology of Obesity and Nutrition CB12/03/30038), University of the Balearic Islands, E-07122 Palma de Mallorca, Spain
| | - Hari Prasad Devkota
- School of Pharmacy, Kumamoto University, 5-1 Oe-honmachi, Chuo ku, Kumamoto 862-0973, Japan; Program for Leading Graduate Schools, Health life science: Interdisciplinary and Glocal Oriented (HIGO) Program, Kumamoto University, Kumamoto, Japan
| | - Hammad Ullah
- Department of Pharmacy, Abdul Wali Khan University, Mardan, 23200, KPK, Pakistan
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
| |
Collapse
|
17
|
Hawken ER, Normandeau CP, Gardner Gregory J, Cécyre B, Bouchard JF, Mackie K, Dumont ÉC. A novel GPR55-mediated satiety signal in the oval Bed Nucleus of the Stria Terminalis. Neuropsychopharmacology 2019; 44:1274-1283. [PMID: 30647449 PMCID: PMC6785105 DOI: 10.1038/s41386-018-0309-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 12/04/2018] [Accepted: 12/21/2018] [Indexed: 12/26/2022]
Abstract
Nestled within feeding circuits, the oval (ov) region of the Bed Nucleus of the Stria Terminalis (BNST) may be critical for monitoring energy balance through changes in synaptic strength. Here we report that bidirectional plasticity at ovBNST GABA synapses was tightly linked to the caloric state of male rats, seesawing between long-term potentiation (iLTP, fed) and depression (iLTD, food restricted). L-α-lysophosphatidylinositol (LPI) acting on GPR55 receptors and 2-arachidonoylglycerol (2-AG) through CB1R were respectively responsible for fed (iLTP) and food restricted (iLTD) states. Thus, we have characterized a potential gating mechanism within the ovBNST that may signal metabolic state within the rat brain feeding circuitry.
Collapse
Affiliation(s)
- E. R. Hawken
- 0000 0004 1936 8331grid.410356.5Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON Canada
| | - C. P. Normandeau
- 0000 0004 1936 8331grid.410356.5Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON Canada
| | - J. Gardner Gregory
- 0000 0004 1936 8331grid.410356.5Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON Canada
| | - B. Cécyre
- 0000 0001 2292 3357grid.14848.31École d’optométrie, Université de Montréal, Montréal, QC Canada
| | - J.-F. Bouchard
- 0000 0001 2292 3357grid.14848.31École d’optométrie, Université de Montréal, Montréal, QC Canada
| | - K. Mackie
- 0000 0001 0790 959Xgrid.411377.7Gill Center for Biomolecular Science, Indiana University, Bloomington, Indiana USA
| | - É. C. Dumont
- 0000 0004 1936 8331grid.410356.5Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON Canada
| |
Collapse
|
18
|
Saqib U, Kelley TT, Panguluri SK, Liu D, Savai R, Baig MS, Schürer SC. Polypharmacology or Promiscuity? Structural Interactions of Resveratrol With Its Bandwagon of Targets. Front Pharmacol 2018; 9:1201. [PMID: 30405416 PMCID: PMC6207623 DOI: 10.3389/fphar.2018.01201] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/01/2018] [Indexed: 02/03/2023] Open
Abstract
Resveratrol (3, 4', 5-trihydroxy-trans-stilbene) is a natural phytoalexin found in grapes and has long been thought to be the answer to the "French Paradox." There is no shortage of preclinical and clinical studies investigating the broad therapeutic activity of resveratrol. However, in spite of many comprehensive reviews published on the bioactivity of resveratrol, there has yet to be a report focused on the variety and complexity of its structural binding properties, and its multi-targeted role. An improved understanding of disease mechanisms at the systems level has enabled targeted polypharmacology to mature into a rational drug discovery approach. Unlike traditional hit-to-lead campaigns that typically optimize activity and selectivity for a single target, polypharmacological drugs aim to selectively target multiple proteins, while avoiding critical off target interactions. This strategy bears promise of improved efficacy and reduced clinical attrition. This review seeks to investigate whether the bioactivity of resveratrol is due to a polypharmacological effect or promiscuity of the phenolic small molecule by examining the modes of binding with its diverse collection of protein targets. We focused on annotated targets, identified via the ChEMBL database, and matched these targets to a representative structure deposited in the Protein Data Bank (PDB), as crystal structures are most informative in understanding modes of binding at the atomic level. We discuss the structural aspects of resveratrol itself that permits binding to multiple proteins in various signaling pathways. Furthermore, we suggest that resveratrol's bioactivity is a result of scaffold promiscuity rather than polypharmacology, and the variety of binding modes across targets display little similarity in the pattern of target interaction.
Collapse
Affiliation(s)
- Uzma Saqib
- Discipline of Chemistry, Indian Institute of Technology Indore, Indore, India
| | - Tanya T. Kelley
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Siva K. Panguluri
- Department of Pharmaceutical Science, University of South Florida, Tampa, FL, United States
| | - Dongfang Liu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, United States
| | - Rajkumar Savai
- German Center for Lung Research (DZL), Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Mirza S. Baig
- Discipline of Bioscience and Biomedical Engineering, Indian Institute of Technology Indore, Indore, India
| | - Stephan C. Schürer
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, United States
- Center for Computational Science, University of Miami, Coral Gables, FL, United States
| |
Collapse
|
19
|
Lajarín-Cuesta R, Arribas RL, Nanclares C, García-Frutos EM, Gandía L, de los Ríos C. Design and synthesis of multipotent 3-aminomethylindoles and 7-azaindoles with enhanced protein phosphatase 2A-activating profile and neuroprotection. Eur J Med Chem 2018; 157:294-309. [DOI: 10.1016/j.ejmech.2018.07.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/09/2018] [Accepted: 07/11/2018] [Indexed: 02/02/2023]
|
20
|
Weiskirchen S, Weiskirchen R. Resveratrol: Is It Really Good for Liver Health? HEPATITIS MONTHLY 2017; 17. [DOI: 10.5812/hepatmon.12074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
|
21
|
Claunch NM, Holding ML, Escallón C, Vernasco B, Moore IT, Taylor EN. Good vibrations: Assessing the stability of snake venom composition after researcher-induced disturbance in the laboratory. Toxicon 2017; 133:127-135. [PMID: 28487160 DOI: 10.1016/j.toxicon.2017.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 05/04/2017] [Accepted: 05/05/2017] [Indexed: 01/13/2023]
Abstract
Phenotypic plasticity contributes to intraspecific variation in traits of many animal species. Venom is an integral trait to the success and survival of many snake species, and potential plasticity in venom composition is important to account for in the context of basic research as well as in human medicine for treating the various symptoms of snakebite and producing effective anti-venoms. Researchers may unknowingly induce changes in venom variation by subjecting snakes to novel disturbances and potential stressors. We explored phenotypic plasticity in snake venom composition over time in captive Pacific rattlesnakes (Crotalus oreganus) exposed to vibration treatment, compared to an undisturbed control group. Venom composition did not change significantly in response to vibration, nor was there a detectable effect of overall time in captivity, even though snakes re-synthesized venom stores while subjected to novel disturbance in the laboratory. This result indicates that venom composition is a highly repeatable phenotype over short time spans and that the composition of venom within adult individuals may be resistant to or unaffected by researcher-induced disturbance. On the other hand, the change in venom composition, measured as movement along the first principle component of venom phenotype space, was associated with baseline corticosterone (CORT) levels in the snakes. While differential forms of researcher-induced disturbance may not affect venom composition, significant changes in baseline CORT, or chronic stress, may affect the venom phenotype, and further investigations will be necessary to assess the nature of the relationship between CORT and venom protein expression.
Collapse
Affiliation(s)
- Natalie M Claunch
- Department of Biological Sciences, California Polytechnic State University, San Luis Obispo, CA 93407, USA.
| | - Matthew L Holding
- Department of Evolution, Ecology, and Evolutionary Biology, The Ohio State University, Columbus, OH 43210, USA
| | - Camilo Escallón
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA
| | - Ben Vernasco
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA
| | - Ignacio T Moore
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA
| | - Emily N Taylor
- Department of Biological Sciences, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| |
Collapse
|
22
|
Weiskirchen S, Weiskirchen R. Resveratrol: How Much Wine Do You Have to Drink to Stay Healthy? Adv Nutr 2016; 7:706-18. [PMID: 27422505 PMCID: PMC4942868 DOI: 10.3945/an.115.011627] [Citation(s) in RCA: 170] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Resveratrol is a naturally occurring stilbene endowed with multiple health-promoting effects. It is produced by certain plants including several dietary sources such as grapes, apples, raspberries, blueberries, plums, peanuts, and products derived therefrom (e.g., wine). Resveratrol can be isolated and purified from these biological sources or synthesized in a few steps with an overall high yield. This compound and its glucoside, the trans-polydatin piceid, have received worldwide attention for their beneficial effects on cardiovascular, inflammatory, neurodegenerative, metabolic, and age-related diseases. These health-promoting effects are particularly attractive given the prevalence of resveratrol-based nutraceuticals and the paradoxical epidemiologic observation that wine consumption is inversely correlated to the incidence of coronary heart disease. However, the notion of resveratrol as a "magic bullet" was recently challenged by clinical trials showing that this polyphenol does not have a substantial influence on health status and mortality risk. In the present review, we discuss the proposed therapeutic attributes and the mode of molecular actions of resveratrol. We also cover recent pharmacologic efforts to improve the poor bioavailability of resveratrol and influence the transition between body systems in humans. We conclude with some thoughts about future research directions that might be meaningful for resolving controversies surrounding resveratrol.
Collapse
Affiliation(s)
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, Rheinisch-Westfaelische Technische Hochschule University Hospital Aachen, Aachen, Germany
| |
Collapse
|