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Rashi T. Jewish Ethics of Inmate Vaccines Against COVID-19. JOURNAL OF BIOETHICAL INQUIRY 2024; 21:57-66. [PMID: 38427178 PMCID: PMC11052822 DOI: 10.1007/s11673-023-10331-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 03/10/2023] [Indexed: 03/02/2024]
Abstract
PURPOSE The COVID-19 pandemic broke out at the end of 2019, and throughout 2020 there were intensive international efforts to find a vaccine for the disease, which had already led to the deaths of some five million people. In December 2020, several pharmaceutical companies announced that they had succeeded in producing an effective vaccine, and after approval by the various regulatory bodies, countries started to vaccinate their citizens. With the start of the global campaign to vaccinate the world's population against COVID-19, debates over the prioritization of different sections of the population began around the world, but the prison population has generally been absent from these discussions. APPROACH AND FINDINGS This article presents the approach of Jewish ethics regarding this issue, that is, that there is a religious and a moral obligation to heal the other and to take care of his or her medical well-being and that this holds true even for a prisoner who has committed a serious crime. Hence, prisoners should be vaccinated according to the same priorities that govern the administration of the vaccine among the general public. ORIGINALITY The originality of the article is in a comprehensive and comparative reference between general ethics and Jewish ethics on a subject that has not yet received the proper attention.
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Affiliation(s)
- Tsuriel Rashi
- School of Communication, Ariel University, 65 Ramat HaGolan St., Ariel, Israel.
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2
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Uvais NA, Moideen S, Ashfaq U Rahman AM, Hanana F. Boswellia Resin (Frankincense)-Associated Mania. Am J Ther 2023; 30:e575-e576. [PMID: 35426834 DOI: 10.1097/mjt.0000000000001509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- N A Uvais
- Department of Psychiatry, Iqraa International Hospital and Research Centre, Calicut, Kerala, India
| | - Shamsudeen Moideen
- Department of Internal Medicine, Iqraa International Hospital and Research Centre, Calicut, Kerala, India
| | | | - Fathima Hanana
- Duty Medical Officer, Starcare Hospital, Calicut, Kerala, India
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3
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Kalinovskii AP, Utkina LL, Korolkova YV, Andreev YA. TRPV3 Ion Channel: From Gene to Pharmacology. Int J Mol Sci 2023; 24:ijms24108601. [PMID: 37239947 DOI: 10.3390/ijms24108601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/07/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Transient receptor potential vanilloid subtype 3 (TRPV3) is an ion channel with a sensory function that is most abundantly expressed in keratinocytes and peripheral neurons. TRPV3 plays a role in Ca2+ homeostasis due to non-selective ionic conductivity and participates in signaling pathways associated with itch, dermatitis, hair growth, and skin regeneration. TRPV3 is a marker of pathological dysfunctions, and its expression is increased in conditions of injury and inflammation. There are also pathogenic mutant forms of the channel associated with genetic diseases. TRPV3 is considered as a potential therapeutic target of pain and itch, but there is a rather limited range of natural and synthetic ligands for this channel, most of which do not have high affinity and selectivity. In this review, we discuss the progress in the understanding of the evolution, structure, and pharmacology of TRPV3 in the context of the channel's function in normal and pathological states.
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Affiliation(s)
- Aleksandr P Kalinovskii
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (IBCh RAS), 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia
| | - Lyubov L Utkina
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trbetskaya Str. 8, Bld. 2, 119991 Moscow, Russia
| | - Yuliya V Korolkova
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (IBCh RAS), 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia
| | - Yaroslav A Andreev
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (IBCh RAS), 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trbetskaya Str. 8, Bld. 2, 119991 Moscow, Russia
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4
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Mechoulam R. A Delightful Trip Along the Pathway of Cannabinoid and Endocannabinoid Chemistry and Pharmacology. Annu Rev Pharmacol Toxicol 2023; 63:1-13. [PMID: 35850522 DOI: 10.1146/annurev-pharmtox-051921-083709] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
After a traumatic childhood in Europe during the Second World War, I found that scientific research in Israel was a pleasure beyond my expectations. Over the last 65 year, I have worked on the chemistry and pharmacology of natural products. During the last few decades, most of my research has been on plant cannabinoids, the endogenous cannabinoids arachidonoyl ethanolamide (anandamide) and 2-arachidonoyl glycerol, and endogenous anandamide-like compounds, all of which are involved in a wide spectrum of physiological reactions. Two plant cannabinoids, Δ9-tetrahydrocannabinol and cannabidiol, are approved drugs. However, the endogenous cannabinoids and the anandamide-like constituents have not yet been well investigated in humans. For me, intellectual freedom-the ability to do research based on my own scientific interests-has been the most satisfying part of my working life. Looking back over the 91 years of my long life, I conclude that I have been lucky, very lucky, both personally and scientifically.
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Affiliation(s)
- Raphael Mechoulam
- Institute of Drug Research, Medical Faculty, Hebrew University of Jerusalem, Jerusalem, Israel;
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5
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TRPV3: Structure, Diseases and Modulators. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020774. [PMID: 36677834 PMCID: PMC9865980 DOI: 10.3390/molecules28020774] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 01/04/2023] [Accepted: 01/08/2023] [Indexed: 01/15/2023]
Abstract
Transient receptor potential vanillin 3 (TRPV3) is a member of the transient receptor potential (TRP) superfamily. As a Ca2+-permeable nonselective cation channel, TRPV3 can recognize thermal stimulation (31-39 °C), and it plays an important regulatory role in temperature perception, pain transduction, skin physiology, inflammation, cancer and other diseases. TRPV3 is not only activated by the changes in the temperature, but it also can be activated by a variety of chemical and physical stimuli. Selective TRPV3 agonists and antagonists with regulatory effects and the physiological functions for clinical application are highly demanded. In recent years, significant progress has been made in the study of TRPV3, but there is still a lack of modulators with a strong affinity and excellent selectivity. This paper reviews the functional characteristics of TRPV3 in terms of the structure, diseases and the research on TRPV3 modulators.
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Karbalaiee M, Daneshpajooh A, Khanjani N, Sohbati S, Mehrabani M, Mehrbani M, Mehrabani M. Efficacy of frankincense‐based herbal product in urinary incontinence: A randomized, double‐blind, placebo‐ and active‐controlled clinical trial. Phytother Res 2022; 37:1754-1770. [PMID: 36442480 DOI: 10.1002/ptr.7691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 10/11/2022] [Accepted: 10/16/2022] [Indexed: 11/30/2022]
Abstract
Urinary incontinence is a silent epidemic that has a serious impact on a person's quality of life (QOL). This study aimed to evaluate the efficacy of frankincense-based herbal product (FHP) in urinary incontinence compared with placebo and solifenacin. In this randomized, double-blind clinical trial, 120 postmenopausal women with mixed urinary incontinence were randomized to one of the three groups of FHP, placebo, and standard treatment (solifenacin). Frequency, amount of leakage, and score of urinary incontinence as well as the QOL were measured at the end of the second and fourth weeks and 2 weeks after the interruption of the treatment. The ICIQ-UI SF and I-QOL questionnaires were used for the measurements. Mean frequency of urinary incontinence and amount of leakage significantly decreased in the FHP and solifenacin groups in the fourth week compared to the placebo group. In addition, 2 weeks after treatment completion, the effects of the FHP were significant compared to the solifenacin group. Due to the effect of FHP on improving the QOL and also the prolonged effect of this drug, the use of FHP in urinary incontinence, as a complementary treatment could be suggested.
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Affiliation(s)
- Mahbubeh Karbalaiee
- Physiology Research Center, Institute of Neuropharmacology Kerman University of Medical Sciences Kerman Iran
- Department of Traditional Medicine, Faculty of Persian Medicine Kerman University of Medical Sciences Kerman Iran
| | - Azar Daneshpajooh
- Department of Urology, Shahid Bahonar Hospital Kerman University of Medical Sciences Kerman Iran
| | - Narges Khanjani
- Neurology Research Center Kerman University of Medical Sciences Kerman Iran
| | - Samira Sohbati
- Department of Obstetrics and Gynecology, Clinical Research Development Unit, Afzalipour Hospital Kerman University of Medical Sciences Kerman Iran
| | - Mehrnaz Mehrabani
- Physiology Research Center, Institute of Neuropharmacology Kerman University of Medical Sciences Kerman Iran
| | - Mehrzad Mehrbani
- Herbal and Traditional Medicines Research Center Kerman University of Medical Sciences Kerman Iran
| | - Mitra Mehrabani
- Herbal and Traditional Medicines Research Center Kerman University of Medical Sciences Kerman Iran
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Ur Rehman N, Al-Shidhani S, Karim N, Khan A, Khan I, Ahsan Halim S, Khan Sadozai S, Kumar Avula S, Csuk R, Al-Harrasi A. Incensole derivatives from frankincense: Isolation, enhancement, synthetic modification, and a plausible mechanism of their anti-depression activity. Bioorg Chem 2022; 126:105900. [DOI: 10.1016/j.bioorg.2022.105900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 11/02/2022]
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8
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Buch RM, Carlson RE, von Fraunhofer JA. Frankincense: an ancient oil in the modern world. JOURNAL OF ESSENTIAL OIL RESEARCH 2022. [DOI: 10.1080/10412905.2022.2066210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Richard E. Carlson
- Research and Analytical Sciences, D. Gary Young Research Institute, Lehi, Utah, USA
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9
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Chen X, Zhang J, Wang K. Inhibition of intracellular proton-sensitive Ca 2+-permeable TRPV3 channels protects against ischemic brain injury. Acta Pharm Sin B 2022; 12:2330-2347. [PMID: 35646518 PMCID: PMC9136580 DOI: 10.1016/j.apsb.2022.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/18/2021] [Accepted: 12/02/2021] [Indexed: 11/24/2022] Open
Abstract
Ischemic brain stroke is pathologically characterized by tissue acidosis, sustained calcium entry and progressive cell death. Previous studies focusing on antagonizing N-methyl-d-aspartate (NMDA) receptors have failed to translate any clinical benefits, suggesting a non-NMDA mechanism involved in the sustained injury after stroke. Here, we report that inhibition of intracellular proton-sensitive Ca2+-permeable transient receptor potential vanilloid 3 (TRPV3) channel protects against cerebral ischemia/reperfusion (I/R) injury. TRPV3 expression is upregulated in mice subjected to cerebral I/R injury. Silencing of TRPV3 reduces intrinsic neuronal excitability, excitatory synaptic transmissions, and also attenuates cerebral I/R injury in mouse model of transient middle cerebral artery occlusion (tMCAO). Conversely, overexpressing or re-expressing TRPV3 increases neuronal excitability, excitatory synaptic transmissions and aggravates cerebral I/R injury. Furthermore, specific inhibition of TRPV3 by natural forsythoside B decreases neural excitability and attenuates cerebral I/R injury. Taken together, our findings for the first time reveal a causative role of neuronal TRPV3 channel in progressive cell death after stroke, and blocking overactive TRPV3 channel may provide therapeutic potential for ischemic brain injury.
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Influence of Dietary Supplementation with Boswellia serrata and Salix alba on Performance and Blood Biochemistry in Free-Range Leghorn Laying Hens. Vet Sci 2022; 9:vetsci9040182. [PMID: 35448679 PMCID: PMC9030870 DOI: 10.3390/vetsci9040182] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 01/27/2023] Open
Abstract
This study was conducted to evaluate the safety and the beneficial effects of dietary supplementation with Boswellia serrata (Bs) and Salix alba (Sa) in Leghorn hens during the critical pre-laying and laying phases. A total of 120 pullets, 17 weeks of age, were assigned to two groups (Control—C; Treated—T, n = 60 each). For 12 weeks, the T group received a diet supplemented with 0.3% of dry extracts of Bs (5%) and Sa (5%). The study lasted 19 weeks. Productive performance, serum analytes, H/L ratio, IgA and anti-IBV antibodies were investigated. Water intake was significantly higher, while body and egg weight was significantly lower for the T group (p < 0.05). No other differences were detected in performance parameters, serum analytes, IgA and H/L ratio excluding t0, with a significantly (p < 0.05) higher H/R ratio and higher titers of anti-IBV antibody for the T group. Overall, the data obtained in this study show that the supplementation with Bs and Sa was safe and resulted in an increase in water consumption, a decrease in egg weight, and a sedative effect in the hens. In the future, it would be interesting to test this supplement in hens reared on intensive farms.
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11
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Hussain H, Rashan L, Hassan U, Abbas M, Hakkim FL, Green IR. Frankincense diterpenes as a bio-source for drug discovery. Expert Opin Drug Discov 2022; 17:513-529. [PMID: 35243948 DOI: 10.1080/17460441.2022.2044782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Frankincense (Boswellia sp.) gum resins have been employed as an incense in cultural and religious ceremonies for many years. Frankincense resin has over the years been employed to treat depression, inflammation, and cancer in traditional medicines. AREAS COVERED This inclusive review focuses on the significance of frankincense diterpenoids, and in particular, incensole derivatives for establishment future treatments of depression, neurological disorders, and cancer. The authors survey the available literature and furnish an overview of future perspectives of these intriguing molecules. EXPERT OPINION Numerous diterpenoids including cembrane, prenylaromadendrane, and the verticillane-type have been isolated from various Boswellia resins. Cembrane-type diterpenoids occupy a crucial position in pharmaceutical chemistry and related industries because of their intriguing biological and encouraging pharmacological potentials. Several cembranes have been reported to possess anti-Alzheimer, anti-inflammatory, hepatoprotective, and antimalarial effects along with a good possibility to treat anxiety and depression. Although some slight drawbacks of these compounds have been noted, including the selectivity of these diterpenoids, there is a great need to address these in future research endeavors. Moreover, it is vitally important for medicinal chemists to prepare libraries of incensole-heterocyclic analogs as well as hybrid compounds between incensole or its acetate and anti-depressant or anti-inflammatory drugs.
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Affiliation(s)
- Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle, Germany
| | - Luay Rashan
- Medicinal Plants Division, Research Center, Dhofar University, Salalah, Oman
| | - Uzma Hassan
- Institute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan
| | - Muzaffar Abbas
- Faculty of Pharmacy, Capital University of Science & Technology, Islamabad, Pakistan
| | | | - Ivan R Green
- Department of Chemistry and Polymer Science, University of Stellenbosch, Stellenbosch, South Africa
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12
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Huang K, Chen Y, Liang K, Xu X, Jiang J, Liu M, Zhou F. Review of the Chemical Composition, Pharmacological Effects, Pharmacokinetics, and Quality Control of Boswellia carterii. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:6627104. [PMID: 35069765 PMCID: PMC8776457 DOI: 10.1155/2022/6627104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 11/30/2021] [Indexed: 12/28/2022]
Abstract
OBJECTIVE This review aimed to systematically summarize studies that investigated the bioactivities of compounds and extracts from Boswellia. METHODS A literature review on the pharmacological properties and phytochemicals of B. carterii was performed. The information was retrieved from secondary databases such as PubMed, Chemical Abstracts Services (SciFinder), Google Scholar, and ScienceDirect. RESULTS The various Boswellia extracts and compounds demonstrated pharmacological properties, such as anti-inflammatory, antitumour, and antioxidant activities. B. carterii exhibited a positive effect on the treatment and prevention of many ageing diseases, such as diabetes, cancer, cardiovascular disease, and neurodegenerative diseases. CONCLUSION Here, we highlight the pharmacological properties and phytochemicals of B. carterii and propose further evidence-based research on plant-derived remedies and compounds.
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Affiliation(s)
- Kai Huang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Yanrong Chen
- First Clinical Medical College, Southern Medical University, Guangzhou 510515, China
| | - Kaiyong Liang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Xiaoyan Xu
- Second Clinical Medical College, Southern Medical University, Guangzhou 510515, China
| | - Jing Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Menghua Liu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Fenghua Zhou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
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Al-Harrasi A, Avula SK, Csuk R, Das B. Cembranoids from Boswellia species. PHYTOCHEMISTRY 2021; 191:112897. [PMID: 34412004 DOI: 10.1016/j.phytochem.2021.112897] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/24/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Frankincense of Boswellia species has long been used in traditional medicines, mainly for its interesting anti-inflammatory and anti-depressant properties of its di- and triterpenes. Boswellic acids (triterpenes) and cembranoids (diterpenes) are the major constituents of frankincense from all reported species which are responsible for the overall biological activity of frankincense. Boswellic acids have been thoroughly investigated for decades but cembranoids have attracted considerable attention only recently, and a good number of publications have highlighted the important role of these 14-membered rings in contributing to the superior anti-inflammatory activity of the sacred resin. Partial and total syntheses of some cembranoids from frankincense have been reported. Their therapeutic potential is not limited to the well proven anti-inflammatory activity but also to their recently reported anti-depressant properties. There is a considerable number of publications in the field of cembranoids of Boswellia species where we feel a review in this topic will be of interest to the readership of Phytochemistry. In this article we have discussed the chemistry (isolation and chemical structures as well as synthetic studies), biogenesis and bioactivity of the reported cembranoids of Boswellia species. The structural discrepancies due to wrongly assigned structures of some cembranoids have been highlighted and corrected. We have covered the related literature up to the end of 2020.
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Affiliation(s)
- Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Postal Code 616, Birkat Al Mauz, Nizwa, Oman.
| | - Satya Kumar Avula
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Postal Code 616, Birkat Al Mauz, Nizwa, Oman
| | - René Csuk
- Organic Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120, Halle (Saale), Germany
| | - Biswanath Das
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Postal Code 616, Birkat Al Mauz, Nizwa, Oman
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Sadgrove NJ, Padilla-González GF, Leuner O, Melnikovova I, Fernandez-Cusimamani E. Pharmacology of Natural Volatiles and Essential Oils in Food, Therapy, and Disease Prophylaxis. Front Pharmacol 2021; 12:740302. [PMID: 34744723 PMCID: PMC8566702 DOI: 10.3389/fphar.2021.740302] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/04/2021] [Indexed: 12/19/2022] Open
Abstract
This commentary critically examines the modern paradigm of natural volatiles in 'medical aromatherapy', first by explaining the semantics of natural volatiles in health, then by addressing chemophenetic challenges to authenticity or reproducibility, and finally by elaborating on pharmacokinetic and pharmacodynamic processes in food, therapy, and disease prophylaxis. Research over the last 50 years has generated substantial knowledge of the chemical diversity of volatiles, and their strengths and weaknesses as antimicrobial agents. However, due to modest in vitro outcomes, the emphasis has shifted toward the ability to synergise or potentiate non-volatile natural or pharmaceutical drugs, and to modulate gene expression by binding to the lipophilic domain of mammalian cell receptors. Because essential oils and natural volatiles are small and lipophilic, they demonstrate high skin penetrating abilities when suitably encapsulated, or if derived from a dietary item they bioaccumulate in fatty tissues in the body. In the skin or body, they may synergise or drive de novo therapeutic outcomes that range from anti-inflammatory effects through to insulin sensitisation, dermal rejuvenation, keratinocyte migration, upregulation of hair follicle bulb stem cells or complementation of anti-cancer therapies. Taking all this into consideration, volatile organic compounds should be examined as candidates for prophylaxis of cardiovascular disease. Considering the modern understanding of biology, the science of natural volatiles may need to be revisited in the context of health and nutrition.
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Affiliation(s)
| | | | - Olga Leuner
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Ingrid Melnikovova
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Eloy Fernandez-Cusimamani
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague, Czech Republic
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15
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Dimmito MP, Stefanucci A, Della Valle A, Scioli G, Cichelli A, Mollica A. An overview on plants cannabinoids endorsed with cardiovascular effects. Biomed Pharmacother 2021; 142:111963. [PMID: 34332376 DOI: 10.1016/j.biopha.2021.111963] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/14/2021] [Accepted: 07/22/2021] [Indexed: 12/01/2022] Open
Abstract
Nowadays cardiovascular diseases (CVDs) are the major causes for the reduction of the quality of life. The endocannabinoid system is an attractive therapeutic target for the treatment of cardiovascular disorders due to its involvement in vasomotor control, cardiac contractility, blood pressure and vascular inflammation. Alteration in cannabinoid signalling can be often related to cardiotoxicity, circulatory shock, hypertension, and atherosclerosis. Plants have been the major sources of medicines until modern eras in which researchers are experiencing a rediscovery of natural compounds as novel therapeutics. One of the most versatile plant is Cannabis sativa L., containing phytocannabinoids that may play a role in the treatment of CVDs. The aim of this review is to collect and investigate several less studied plants rich in cannabinoid-like active compounds able to interact with cannabinoid system; these plants may play a pivotal role in the treatment of disorders related to the cardiovascular system.
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Affiliation(s)
- Marilisa Pia Dimmito
- Department of Pharmacy, G. d'Annunzio University of Chieti-Pescara, 66100 Chieti, Italy
| | - Azzurra Stefanucci
- Department of Pharmacy, G. d'Annunzio University of Chieti-Pescara, 66100 Chieti, Italy.
| | - Alice Della Valle
- Department of Pharmacy, G. d'Annunzio University of Chieti-Pescara, 66100 Chieti, Italy
| | - Giuseppe Scioli
- Department of Pharmacy, G. d'Annunzio University of Chieti-Pescara, 66100 Chieti, Italy
| | - Angelo Cichelli
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
| | - Adriano Mollica
- Department of Pharmacy, G. d'Annunzio University of Chieti-Pescara, 66100 Chieti, Italy
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Horishita R, Ogata Y, Fukui R, Yamazaki R, Moriwaki K, Ueno S, Yanagihara N, Uezono Y, Yokoyama Y, Minami K, Horishita T. Local Anesthetics Inhibit Transient Receptor Potential Vanilloid Subtype 3 Channel Function in Xenopus Oocytes. Anesth Analg 2021; 132:1756-1767. [PMID: 33857022 DOI: 10.1213/ane.0000000000005546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND The transient receptor potential vanilloid subtype 3 (TRPV3) channel is activated by innocuous temperature and several chemical stimuli. It is proposed to be involved in pathological pain development and is therefore considered a potential target for treating pain. Local anesthetics have been used for patients with both acute and chronic pain. Although blockage of the voltage-gated sodium channel is the primary mechanism by which local anesthetics exert their effects, they cannot be explained by this mechanism alone, especially in pathologic states such as chronic pain. Indeed, the effects of local anesthetics on multiple targets involved in the pain pathway have been reported. It has also been suggested that modulating the function of transient receptor potential (TRP) channels (eg, TRPV1 and transient receptor potential ankyrin 1 [TRPA1]) is one of the mechanisms of action of local anesthetics. However, the effects of local anesthetics on TRPV3 have not been reported. METHODS We expressed TRPV3 in Xenopus oocytes and investigated the effects of local anesthetics on 2-aminoethoxydiphenyl borate (2APB)-induced currents using 2-electrode voltage-clamp techniques. RESULTS Clinically used local anesthetics inhibited the 2APB-activated currents from the TRPV3 channel in a concentration-dependent manner at pharmacologically relevant concentrations with half maximal inhibitory concentration (IC50) values of 2.5 (lidocaine), 1.4 (mepivacaine), 0.28 (ropivacaine), and 0.17 (bupivacaine) mmol/L, respectively. Conversely, these local anesthetics also directly induced currents at higher concentrations, although these currents were quite small compared to the 2APB-induced currents. We found that the inhibition of TRPV3 by lidocaine is noncompetitive and independent of intracellular signaling cascades. 2APB-induced TRPV3 currents were reduced by extracellular N-(2,6-dimethylphenylcarbamoylmethyl) triethylammonium bromide (QX-314) but not by intracellular QX-314 nor benzocaine. Moreover, lidocaine showed a use-dependent block in TRPV3 inhibition. Finally, QX-314 appeared to slightly permeate the activated TRPV3 channel pore based on examination of oocytes coexpressing TRPV3 and a sodium channel. These results suggest that local anesthetics could inhibit TRPV3 channel function by extracellular interactions of their charged forms with the channel pore. CONCLUSIONS Local anesthetics inhibited TRPV3 2APB-induced currents at pharmacologically relevant concentrations when TRPV3 was expressed in Xenopus oocytes. These effects seem to occur via an extracellular interaction between the charged form of the anesthetic with the TRPV3 channel pore. These results help to elucidate the mechanisms of action of local anesthetics.
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Affiliation(s)
- Reiko Horishita
- From the Department of Anesthesiology, School of Medicine and
| | - Yuichi Ogata
- From the Department of Anesthesiology, School of Medicine and
| | - Ryo Fukui
- From the Department of Anesthesiology, School of Medicine and
| | - Ryo Yamazaki
- From the Department of Anesthesiology, School of Medicine and
| | | | - Susumu Ueno
- Department of Occupational Toxicology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Nobuyuki Yanagihara
- Laboratory of Pharmacology, Faculty of Food and Nutrition, Kyushu Nutrition Welfare University
| | - Yasuhito Uezono
- Department of Pain Control Research, The Jikei University School of Medicine.,Division of Supportive and Palliative Research Support, Cancer Center Hospital East
| | - Yuka Yokoyama
- Department of Molecular Pathology & Metabolic Disease, Faculty of Pharmaceutical Sciences, Tokyo University of Science
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Neuberger A, Nadezhdin KD, Sobolevsky AI. TRPV3 expression and purification for structure determination by Cryo-EM. Methods Enzymol 2021; 652:31-48. [PMID: 34059288 DOI: 10.1016/bs.mie.2021.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The transient receptor potential vanilloid-superfamily member 3 (TRPV3) channel is implicated in a variety of physiological processes, including temperature sensing, nociception and itch, maintenance of the skin barrier, wound healing, hair growth, and embryonic development. TRPV3 is also associated with various skin diseases, including Olmsted syndrome, atopic dermatitis, and rosacea. Studies of TRPV3 are of fundamental importance for structural pharmacology aimed at the design of drugs targeting this channel and for understanding the molecular basis of temperature sensing. Here we describe a detailed protocol for expression and purification of chemically pure and stable TRPV3 protein that is suitable for structural and functional characterization of this channel, in particular for cryo-EM sample preparation and high-resolution 3D reconstruction.
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Affiliation(s)
- Arthur Neuberger
- Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, United States
| | - Kirill D Nadezhdin
- Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, United States
| | - Alexander I Sobolevsky
- Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, United States.
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Wu J, Liu D, Li J, Sun J, Huang Y, Zhang S, Gao S, Mei W. Central Neural Circuits Orchestrating Thermogenesis, Sleep-Wakefulness States and General Anesthesia States. Curr Neuropharmacol 2021; 20:223-253. [PMID: 33632102 PMCID: PMC9199556 DOI: 10.2174/1570159x19666210225152728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 02/01/2021] [Accepted: 02/24/2021] [Indexed: 11/22/2022] Open
Abstract
Great progress has been made in specifically identifying the central neural circuits (CNCs) of the core body temperature (Tcore), sleep-wakefulness states (SWs), and general anesthesia states (GAs), mainly utilizing optogenetic or chemogenetic manipulations. We summarize the neuronal populations and neural pathways of these three CNCs, which gives evidence for the orchestration within these three CNCs, and the integrative regulation of these three CNCs by different environmental light signals. We also outline some transient receptor potential (TRP) channels that function in the CNCs-Tcore and are modulated by some general anesthetics, which makes TRP channels possible targets for addressing the general-anesthetics-induced-hypothermia (GAIH). We suggest this review will provide new orientations for further consummating these CNCs and elucidating the central mechanisms of GAIH.
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Affiliation(s)
- Jiayi Wu
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030. China
| | - Daiqiang Liu
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030. China
| | - Jiayan Li
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030. China
| | - Jia Sun
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030. China
| | - Yujie Huang
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030. China
| | - Shuang Zhang
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030. China
| | - Shaojie Gao
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030. China
| | - Wei Mei
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave 1095, Wuhan 430030. China
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Schmiech M, Ulrich J, Lang SJ, Büchele B, Paetz C, St-Gelais A, Syrovets T, Simmet T. 11-Keto-α-Boswellic Acid, a Novel Triterpenoid from Boswellia spp. with Chemotaxonomic Potential and Antitumor Activity against Triple-Negative Breast Cancer Cells. Molecules 2021; 26:molecules26020366. [PMID: 33445710 PMCID: PMC7828217 DOI: 10.3390/molecules26020366] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/01/2021] [Accepted: 01/05/2021] [Indexed: 12/16/2022] Open
Abstract
Boswellic acids, and particularly 11-keto-boswellic acids, triterpenoids derived from the genus Boswellia (Burseraceae), are known for their anti-inflammatory and potential antitumor efficacy. Although boswellic acids generally occur as α-isomers (oleanane type) and β-isomers (ursane type), 11-keto-boswellic acid (KBA) was found only as the β-isomer, β-KBA. Here, the existence and natural occurrence of the respective α-isomer, 11-keto-α-boswellic acid (α-KBA), is demonstrated for the first time. Initially, α-KBA was synthesized and characterized by high-resolution mass spectrometry (HR-MS) and nuclear magnetic resonance (NMR) spectroscopy, and a highly selective, sensitive, and accurate high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS) method was developed by Design of Experiments (DoE) using a pentafluorophenyl stationary phase. This method allowed the selective quantification of individual 11-keto-boswellic acids and provided evidence for α-KBA in Boswellia spp. oleogum resins. The contents of α-KBA as well as further boswellic acids and the composition of essential oils were used to chemotaxonomically classify 41 Boswellia oleogum resins from 9 different species. Moreover, α-KBA exhibited cytotoxicity against three treatment-resistant triple-negative breast cancer (TNBC) cell lines in vitro and also induced apoptosis in MDA-MB-231 xenografts in vivo. The respective β-isomer and the acetylated form demonstrate higher cytotoxic efficacies against TNBC cells. This provides further insights into the structure-activity relationship of boswellic acids and could support future developments of potential anti-inflammatory and antitumor drugs.
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Affiliation(s)
- Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
| | - Judith Ulrich
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
| | - Sophia Johanna Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
| | - Berthold Büchele
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
| | - Christian Paetz
- Max Planck Institute for Chemical Ecology, 07745 Jena, Germany;
| | | | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
- Correspondence: (T.S.); (T.S.); Tel.: +49-731-500-65604 (T.S.); +49-731-500-65600 (T.S.)
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
- Correspondence: (T.S.); (T.S.); Tel.: +49-731-500-65604 (T.S.); +49-731-500-65600 (T.S.)
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Moon SA, Bae J, Kim K, Cho SY, Kwon G, Lee R, Ko SH, Lim S, Moon C. EEG Revealed That Fragrances Positively Affect Menopausal Symptoms in Mid-life Women. Exp Neurobiol 2020; 29:389-401. [PMID: 33154200 PMCID: PMC7649086 DOI: 10.5607/en20036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/18/2020] [Accepted: 09/28/2020] [Indexed: 11/19/2022] Open
Abstract
During mid-life, women experienced not only physical but also neurological transition. Because of this, many women suffer from physiological and/or psychological menopausal symptoms. Although hormone therapy (HT) was broadly used to alleviate menopausal symptoms, HT showed inconsistent effects in case of psychological symptoms. Moreover, mid-life women’s brains have distinct characteristics than in other periods of life, it is needed to study psychological symptoms in shifted brain network of mid-life women. As an alternative, inhalation of fragrances may alleviate psychological menopausal symptoms. To characterize the alleviation mechanism by fragrances, we tested the effect of fragrances on menopausal symptoms using electroencephalographic (EEG) methods. We hypothesized that fragrance could restore mid-life women’s brain response to stressful situations. We tested six fragrance conditions, including no-odor condition (solvent only) in twenty-eight mid-life women (49.75 years±3.49). Our results showed that fragrances increased alpha power and decreased β/α ratio depending on the severity of menopausal symptoms in a stressful situation. Our study would be helpful in psychological menopausal symptom alleviation as well as fragrance screening for well-being in mid-life.
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Affiliation(s)
- Sun Ae Moon
- Department of Brain and Cognitive Sciences, Graduate School, Daegu Gyeungbuk Institute of Science and Technology, Daegu 42988, Korea
| | - Jisub Bae
- Department of Brain and Cognitive Sciences, Graduate School, Daegu Gyeungbuk Institute of Science and Technology, Daegu 42988, Korea
| | - Kwangsu Kim
- Department of Brain and Cognitive Sciences, Graduate School, Daegu Gyeungbuk Institute of Science and Technology, Daegu 42988, Korea
| | | | - Gusang Kwon
- AMOREPACIFIC R&D Center, Yongin 17074, Korea
| | - Ran Lee
- AMOREPACIFIC R&D Center, Yongin 17074, Korea
| | - Seung Ho Ko
- AMOREPACIFIC R&D Center, Yongin 17074, Korea
| | - Soyeon Lim
- AMOREPACIFIC R&D Center, Yongin 17074, Korea
| | - Cheil Moon
- Department of Brain and Cognitive Sciences, Graduate School, Daegu Gyeungbuk Institute of Science and Technology, Daegu 42988, Korea.,Convergence Research Advanced Centre for Olfaction, Daegu Gyeungbuk Institute of Science and Technology, Daegu 42988, Korea.,Convergence Brain Research Department, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
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21
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Sadgrove NJ. Southern Africa as a ‘cradle of incense’ in wider African aromatherapy. SCIENTIFIC AFRICAN 2020. [DOI: 10.1016/j.sciaf.2020.e00502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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22
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Önder A, Nahar L, Nath S, Sarker SD. Phytochemistry, Traditional Uses and Pharmacological Properties of the Genus Opopanax W. D. J. Koch: A Mini-Review. PHARMACEUTICAL SCIENCES 2020. [DOI: 10.34172/ps.2020.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The genus Opopanax W.D.J. Koch is a member of the Apiaceae family, distributed throughout the Mediterranean region and comprises only three recognized and well-defined species, O. chironium (L.) W.D.J. Koch, O. hispidus (Friv.) Griseb. and O. persicus Boiss. The species of this genus with yellow flowers are well-known in traditional medicine and consumed as food. This review critically appraises published literature on the phytochemistry, traditional usages, and pharmacological activities of the genus Opopanax. In addition, it provides evidence to suggest that the plants from this genus have potential phytotherapeutic applications. Previous phytochemical and bioactivity studies revealed that the genus Opopanax predominantly produces coumarins, diterpenes, phenolics, and phthalides, and possesses various biological and pharmacological properties, including anticancer, antioxidant and antimicrobial activities. The phytochemical profile and pharmacological activities of the genus Opopanax could be useful for further study and might find additional medicinal applications in evidence-based phytotherapy
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Affiliation(s)
- Alev Önder
- Department of Pharmacognosy, Faculty of Pharmacy, Ankara University, 06100 Tandogan Ankara, Turkey
- Department of Pharmacognosy, Faculty of Pharmacy, Ankara University, 06100 Tandogan Ankara, Turkey
| | - Lutfun Nahar
- Laboratory of Growth Regulators, Institute of Experimental Botany ASCR & Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Sushmita Nath
- Department of Pharmacognosy, Faculty of Pharmacy, Ankara University, 06100 Tandogan Ankara, Turkey
| | - Satyajit D. Sarker
- Department of Pharmacognosy, Faculty of Pharmacy, Ankara University, 06100 Tandogan Ankara, Turkey
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Neuropsychiatric implications of transient receptor potential vanilloid (TRPV) channels in the reward system. Neurochem Int 2019; 131:104545. [PMID: 31494132 DOI: 10.1016/j.neuint.2019.104545] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/03/2019] [Accepted: 09/05/2019] [Indexed: 11/22/2022]
Abstract
Neuropsychiatric disorders (NPDs) exert a devastating impact on an individual's personal and social well-being, encompassing various conditions and brain anomalies that influence affect, cognition, and behavior. Because the pathophysiology of NPDs is multifactorial, the precise mechanisms underlying the development of such disorders remain unclear, representing a unique challenge in current neuropsychopharmacotherapy. Transient receptor potential vanilloid (TRPV) type channels are a family of ligand-gated ion channels that mainly include sensory receptors that respond to thermal, mechanical and chemical stimuli. TRPV channels are abundantly present in dopaminergic neurons, thus playing a pivotal role in the modulation of the reward system and in pathophysiology of diseases such as stress, anxiety, depression, schizophrenia, neurodegenerative disorders and substance abuse/addiction. Recent evidence has highlighted TRPV channels as potential targets for understanding modulation of the reward system and various forms of addiction (opioids, cocaine, amphetamines, alcohol, nicotine, cannabis). In this review, we discuss the distribution, physiological roles, ligands and therapeutic importance of TRPV channels with regard to NPDs and addiction biology.
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Somade OT, Ajayi BO, Tajudeen NO, Atunlute EM, James AS, Kehinde SA. Camphor elicits up-regulation of hepatic and pulmonary pro-inflammatory cytokines and chemokines via activation of NF-kB in rats. PATHOPHYSIOLOGY 2019; 26:305-313. [DOI: 10.1016/j.pathophys.2019.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/08/2019] [Accepted: 07/28/2019] [Indexed: 11/25/2022] Open
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25
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Ottolini M, Hong K, Sonkusare SK. Calcium signals that determine vascular resistance. WILEY INTERDISCIPLINARY REVIEWS. SYSTEMS BIOLOGY AND MEDICINE 2019; 11:e1448. [PMID: 30884210 PMCID: PMC6688910 DOI: 10.1002/wsbm.1448] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 02/07/2019] [Accepted: 02/14/2019] [Indexed: 12/19/2022]
Abstract
Small arteries in the body control vascular resistance, and therefore, blood pressure and blood flow. Endothelial and smooth muscle cells in the arterial walls respond to various stimuli by altering the vascular resistance on a moment to moment basis. Smooth muscle cells can directly influence arterial diameter by contracting or relaxing, whereas endothelial cells that line the inner walls of the arteries modulate the contractile state of surrounding smooth muscle cells. Cytosolic calcium is a key driver of endothelial and smooth muscle cell functions. Cytosolic calcium can be increased either by calcium release from intracellular stores through IP3 or ryanodine receptors, or the influx of extracellular calcium through ion channels at the cell membrane. Depending on the cell type, spatial localization, source of a calcium signal, and the calcium-sensitive target activated, a particular calcium signal can dilate or constrict the arteries. Calcium signals in the vasculature can be classified into several types based on their source, kinetics, and spatial and temporal properties. The calcium signaling mechanisms in smooth muscle and endothelial cells have been extensively studied in the native or freshly isolated cells, therefore, this review is limited to the discussions of studies in native or freshly isolated cells. This article is categorized under: Biological Mechanisms > Cell Signaling Laboratory Methods and Technologies > Imaging Models of Systems Properties and Processes > Mechanistic Models.
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Affiliation(s)
- Matteo Ottolini
- Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA
- Department of Pharmacology, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA
| | - Kwangseok Hong
- Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA
- Department of Physical Education, Chung-Ang University, Seoul, 06974, South Korea
| | - Swapnil K. Sonkusare
- Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA
- Department of Pharmacology, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA
- Department of Molecular Physiology and Biological Physics, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA
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Al-Harrasi A, Khan A, Rehman NU, Al-Shidhani S, Karim N, Khan I, Halim SA, Al-Rawahi A, Hussain J, Csuk R. Evidence for the involvement of a GABAergic mechanism in the effectiveness of natural and synthetically modified incensole derivatives in neuropharmacological disorders: A computational and pharmacological approach. PHYTOCHEMISTRY 2019; 163:58-74. [PMID: 31015070 DOI: 10.1016/j.phytochem.2019.04.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 03/19/2019] [Accepted: 04/14/2019] [Indexed: 06/09/2023]
Abstract
In the course of our continuing exploration for novel bioactive lead compounds (s) from the species Boswellia, we have recently reported incensole derivatives isolated from Boswellia papyrifera Hochst. Given the known antidepressant-like effects of incensole and incensole acetate, we herein present that the low dose intraperitoneal administration of incensole derivatives, namely, incensfuran and incensone, showed significant antidepressant-like effects in the forced swim test (FST) and tail suspension test (TST). Furthermore, these compounds were evaluated for their anxiolytic potential in the elevated plus maze (EPM) and light dark box (LDB) tests and anticonvulsant effects in pentylenetetrazole (PTZ)-induced seizure tests. In the EPM test, administration of these compounds led to dose-dependent increases in open arm entries and in the time spent in EPM open arms. Similar results were obtained in the LDB test, wherein compounds these caused significant increases in the number of transitions between lit and dark compartments and the time spent in the lit compartment. The anxiolytic-like effects in the EPM were not reversed by pretreatment with flumazenil, whereas PTZ and bicuculline (BIC) completely abolished the anxiolytic effects, showing the involvement of the non-benzodiazepine binding sites of GABAA receptors. All four compounds induced significantly elevated brain GABA levels, indicating the involvement of a GABAergic mechanism. Additionally, molecular docking was conducted to elucidate the mode of action for the anxiolytic and anticonvulsant effects of these derivatives. Moreover, these compounds also possess drug-like properties and excellent ADMET profiles.
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Affiliation(s)
- Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, 616 Birkat Al Mauz, Nizwa, Oman.
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, 616 Birkat Al Mauz, Nizwa, Oman
| | - Najeeb Ur Rehman
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, 616 Birkat Al Mauz, Nizwa, Oman
| | - Sulaiman Al-Shidhani
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, 616 Birkat Al Mauz, Nizwa, Oman
| | - Nasiara Karim
- Department of Pharmacy, University of Malakand, Chakdara, Dir (Lower), KPK, Pakistan
| | - Imran Khan
- Department of Pharmacy, University of Swabi, KPK, Pakistan; Department of Biochemistry, Kinnaird College for Women, 93-Jail Road, Lahore, 53700, Pakistan
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, 616 Birkat Al Mauz, Nizwa, Oman
| | - Ahmed Al-Rawahi
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, 616 Birkat Al Mauz, Nizwa, Oman
| | - Javid Hussain
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, 616 Birkat Al Mauz, Nizwa, Oman
| | - Rene Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale) Germany
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Singh J, Hussain Y, Luqman S, Meena A. Targeting Ca 2+ signalling through phytomolecules to combat cancer. Pharmacol Res 2019; 146:104282. [PMID: 31129179 DOI: 10.1016/j.phrs.2019.104282] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 05/10/2019] [Accepted: 05/21/2019] [Indexed: 12/12/2022]
Abstract
Cancer is amongst the life-threatening public health issue worldwide, hence responsible for millions of death every year. It is affecting human health regardless of their gender, age, eating habits, and ecological location. Many drugs and therapies are available for its cure still the need for effective targeted drugs and therapies are of paramount importance. In the recent past, Ca2+ signalling (including channels/transporters/pumps) are being studied as a plausible target for combating the cancer menace. Many evidence has shown that the intracellular Ca2+ homeostasis is altered in cancer cells and the remodelling is linked with tumor instigation, angiogenesis, progression, and metastasis. Focusing on these altered Ca2+ signalling tool kit for cancer treatment is a cross-cutting and emerging area of research. In addition, there are numerous phytomolecules which can be exploited as a potential Ca2+ (channels/transporters/ pumps) modulators in the context of targeting Ca2+ signalling in the cancer cell. In the present review, a list of plant-based potential Ca2+ (channel/transporters/pumps) modulators has been reported which could have application in the framework of repurposing the potential drugs to target Ca2+ signalling pathways in cancer cells. This review also aims to gain attention in and support for prospective research in this field.
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Affiliation(s)
- Jyoti Singh
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, Uttar Pradesh, India; Jawaharlal Nehru University, New Delhi, 110067, India
| | - Yusuf Hussain
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Suaib Luqman
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Abha Meena
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India.
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Al-Harrasi A, Csuk R, Khan A, Hussain J. Distribution of the anti-inflammatory and anti-depressant compounds: Incensole and incensole acetate in genus Boswellia. PHYTOCHEMISTRY 2019; 161:28-40. [PMID: 30802641 DOI: 10.1016/j.phytochem.2019.01.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 01/05/2019] [Accepted: 01/13/2019] [Indexed: 06/09/2023]
Abstract
Incensole and its acetate have shown anti-inflammatory and anti-depression activities due to their ability to activate ion channels in the brain to alleviate anxiety or depression. The natural occurrence of these two structurally and medicinally fascinating 14-membered diterpenoids was reported mainly from the genus Boswellia. Incensole and incensole acetate were detected in and isolated from both essential oils and resins of frankincense. One total synthesis was reported for incensole. Both incensole and its acetate served as precursors for several synthetic transformations. Given the fact that no specific enzymes were isolated from Boswellia trees, the major sources for incensole and incensole acetate, the biosynthetic pathway of these two compounds was only speculated. Recent studies on incensole and incensole acetate including ours have revealed another secret of the ancient drug. Understanding their mode of action will open a door in modern neurobiology and provides new insights on the mysterious diseases of the nervous system. This review interpretatively discusses the natural existence of incensole and incensole acetate, the variation of their percentages in different Boswellia species and other sources, their synthetic modifications, their biosynthesis and their therapeutic potential.
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Affiliation(s)
- Ahmed Al-Harrasi
- Natural and Medical Sciences Center, University of Nizwa, P. O. Box 33, Birkat Al Mauz, Nizwa 616, Oman.
| | - Rene Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale) Germany
| | - Ajmal Khan
- Natural and Medical Sciences Center, University of Nizwa, P. O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
| | - Javid Hussain
- Natural and Medical Sciences Center, University of Nizwa, P. O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
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Nemu D. Getting high with the most high: Entheogens in the Old Testament. JOURNAL OF PSYCHEDELIC STUDIES 2019. [DOI: 10.1556/2054.2019.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This article collects evidence from psychopharmacology, scripture, and archeology to explore several preparations for consumption described in the Old Testament: Manna, Showbread, the Holy Ointment, and the Tabernacle Incense. The Ointment and the Incense are herbal preparations used by the priestly caste to facilitate a direct experience of the Israelite God. A wide variety of psychoactive components are found in these preparations, including GABA-receptor agonists and modulators, opioid receptor agonists, and other agents. They are normally broken down by the body’s enzymes, and therefore orally inactive, but the Holy Ointment also contains inhibitors specific to the enzymes in question. The preparations indicate that the ancient Israelites had a profound understanding of synergism, and the way they are consumed and the taboos around them are highly suggestive of their use as psychoactive agents.
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Affiliation(s)
- Danny Nemu
- 1 Independent Researcher, Psychedelic Press, UK
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Pollastro F, De Petrocellis L, Schiano-Moriello A, Chianese G, Heyman H, Appendino G, Taglialatela-Scafati O. Reprint of: Amorfrutin-type phytocannabinoids from Helichrysum umbraculigerum. Fitoterapia 2018; 126:35-39. [PMID: 29655820 DOI: 10.1016/j.fitote.2018.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 09/14/2017] [Accepted: 09/19/2017] [Indexed: 01/30/2023]
Affiliation(s)
- Federica Pollastro
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Via Bovio 6, 28100 Novara, Italy
| | - Luciano De Petrocellis
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Aniello Schiano-Moriello
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Giuseppina Chianese
- Dipartimento di Farmacia, Università di Napoli Federico II, Via Montesano 49, 80131 Napoli, Italy
| | - Heino Heyman
- Department of Plant Science, University of Pretoria, Pretoria 0002, South Africa
| | - Giovanni Appendino
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Via Bovio 6, 28100 Novara, Italy.
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Pluskal T, Weng JK. Natural product modulators of human sensations and mood: molecular mechanisms and therapeutic potential. Chem Soc Rev 2018; 47:1592-1637. [PMID: 28933478 DOI: 10.1039/c7cs00411g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Humans perceive physical information about the surrounding environment through their senses. This physical information is registered by a collection of highly evolved and finely tuned molecular sensory receptors. A multitude of bioactive, structurally diverse ligands have evolved in nature that bind these molecular receptors. The complex, dynamic interactions between the ligands and the receptors lead to changes in our sensory perception or mood. Here, we review our current knowledge of natural products and their derived analogues that interact specifically with human G protein-coupled receptors, ion channels, and nuclear hormone receptors to modulate the sensations of taste, smell, temperature, pain, and itch, as well as mood and its associated behaviour. We discuss the molecular and structural mechanisms underlying such interactions and highlight cases where subtle differences in natural product chemistry produce drastic changes in functional outcome. We also discuss cases where a single compound triggers complex sensory or behavioural changes in humans through multiple mechanistic targets. Finally, we comment on the therapeutic potential of the reviewed area of research and draw attention to recent technological developments in genomics, metabolomics, and metabolic engineering that allow us to tap the medicinal properties of natural product chemistry without taxing nature.
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Affiliation(s)
- Tomáš Pluskal
- Whitehead Institute for Biomedical Research, 455 Main Street, Cambridge, MA 02142, USA.
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Pollastro F, De Petrocellis L, Schiano-Moriello A, Chianese G, Heyman H, Appendino G, Taglialatela-Scafati O. Amorfrutin-type phytocannabinoids from Helichrysum umbraculigerum. Fitoterapia 2017; 123:13-17. [DOI: 10.1016/j.fitote.2017.09.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 09/14/2017] [Accepted: 09/19/2017] [Indexed: 11/29/2022]
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Assimakopoulou M, Pagoulatos D, Nterma P, Pharmakakis N. Immunolocalization of cannabinoid receptor type 1 and CB2 cannabinoid receptors, and transient receptor potential vanilloid channels in pterygium. Mol Med Rep 2017; 16:5285-5293. [PMID: 28849159 PMCID: PMC5647061 DOI: 10.3892/mmr.2017.7246] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 01/19/2017] [Indexed: 12/17/2022] Open
Abstract
Cannabinoids, as multi-target mediators, activate cannabinoid receptors and transient receptor potential vanilloid (TRPV) channels. There is evidence to support a functional interaction of cannabinoid receptors and TRPV channels when they are coexpressed. Human conjunctiva demonstrates widespread cannabinoid receptor type 1 (CB1), CB2 and TRPV channel localization. The aim of the present study was to investigate the expression profile for cannabinoid receptors (CB1 and CB2) and TRPV channels in pterygium, an ocular surface lesion originating from the conjunctiva. Semi-serial paraffin-embedded sections from primary and recurrent pterygium samples were immunohistochemically examined with the use of specific antibodies. All of the epithelial layers in 94, 78, 96, 73 and 80% of pterygia cases, exhibited CB1, CB2, TRPV1, TRPV2 and TRPV3 cytoplasmic immunoreactivity, respectively. The epithelium of all pterygia cases (100%) showed strong, mainly nuclear, TRPV4 immunolocalization. In the pterygium stroma, scattered cells demonstrated intense CB2 immunoreactivity, whereas vascular endothelial cells were immunopositive for the cannabinoid receptors and all TRPV channels. Quantitative analyses of the immunohistochemical findings in epithelial cells demonstrated a significantly higher expression level in conjunctiva compared with primary pterygia (P=0.04) for CB1, but not for CB2 (P>0.05). Additionally, CB1 and CB2 were significantly highly expressed in primary pterygia (P=0.01), compared with recurrent pterygia. Furthermore, CB1 expression levels were significantly correlated with CB2 expression levels in primary pterygia (P=0.005), but not in recurrent pterygia (P>0.05). No significant difference was detected for all TRPV channel expression levels between pterygium (primary or recurrent) and conjunctival tissues (P>0.05). A significant correlation between the TRPV1 and TRPV3 expression levels (P<0.001) was detected independently of pterygium recurrence. Finally, TRPV channel expression was identified to be significantly higher than the expression level of cannabinoid receptors in the pterygium samples (P<0.001). The differentiated expression of cannabinoid receptors in combination with the presence of TRPV channels, in primary and recurrent pterygia, imply a potential role of these cannabinoid targets in the underlying mechanisms of pterygium.
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Affiliation(s)
- Martha Assimakopoulou
- Department of Anatomy, Histology and Embryology, School of Medicine, University of Patras, GR‑26504 Rio, Greece
| | - Dionysios Pagoulatos
- Department of Anatomy, Histology and Embryology, School of Medicine, University of Patras, GR‑26504 Rio, Greece
| | - Pinelopi Nterma
- Department of Anatomy, Histology and Embryology, School of Medicine, University of Patras, GR‑26504 Rio, Greece
| | - Nikolaos Pharmakakis
- Department of Ophthalmology, School of Medicine, University of Patras, GR‑26504 Rio, Greece
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McGaraughty S, Chu KL, Xu J, Leys L, Radek RJ, Dart MJ, Gomtsyan A, Schmidt RG, Kym PR, Brederson JD. TRPV3 modulates nociceptive signaling through peripheral and supraspinal sites in rats. J Neurophysiol 2017; 118:904-916. [PMID: 28468993 DOI: 10.1152/jn.00104.2017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/14/2017] [Accepted: 04/26/2017] [Indexed: 11/22/2022] Open
Abstract
TRPV3 is a nonselective cation channel activated by temperatures above 33°C and is reported to be localized in keratinocytes and nervous tissue. To investigate a role for TRPV3 in pain modulation, we conducted a series of in vivo electrophysiological studies on spinal and brain nociceptive neurons. Structurally diverse TRPV3 receptor antagonists reduced responses of spinal wide dynamic range (WDR) neurons to low-intensity mechanical stimulation in neuropathic rats, but only CNS-penetrant antagonists decreased elevated spontaneous firing. Injections of an antagonist into the neuronal receptive field, into the L5 dorsal root ganglion, or intracerebroventricularly (ICV) attenuated the evoked firing, but only ICV injections reduced spontaneous activity. Intraspinal injections did not affect either. Spinal transection blocked the effect on spontaneous but not evoked firing after systemic delivery of a TRPV3 antagonist. Systemic administration of an antagonist to neuropathic rats also impacted the firing of On- and Off-cells in the rostral ventromedial medulla in a manner consistent with dampening nociceptive signaling. An assessment of nonevoked "pain," an EEG-measured pain-induced sleep disturbance induced by hind paw injections of CFA, was also improved with CNS-penetrant TRPV3 antagonists but not by an antagonist with poor CNS penetration. Antagonism of TRPV3 receptors modulates activity of key classes of neurons in the pain pathway in a manner consistent with limiting pathological nociceptive signaling and was mediated by receptors in the periphery and brain. Blockade of TRPV3 receptors is likely an effective means to alleviate mechanical allodynia and nonevoked pain. However, the latter will only be obtained by blocking supraspinal TRPV3 receptors.NEW & NOTEWORTHY Recent studies have linked TRPV3 to pain modulation, and much of this work has focused on its role in the skin-primary afferent interface. In this electrophysiological study, we demonstrate that receptor antagonists modulate evoked signals through peripheral mechanisms but blockade of supraspinal TRPV3 receptors contributes to dampening both evoked and nonevoked "pain" through descending modulation. Thus, the full therapeutic potential of TRPV3 antagonists may only be realized with the ability to access receptors in the brain.
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Affiliation(s)
| | | | - Jun Xu
- Neuroscience Research, AbbVie, North Chicago, Illinois
| | - Laura Leys
- Neuroscience Research, AbbVie, North Chicago, Illinois
| | | | | | | | | | - Philip R Kym
- Neuroscience Research, AbbVie, North Chicago, Illinois
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Wang G, Wang K. The Ca2+-Permeable Cation Transient Receptor Potential TRPV3 Channel: An Emerging Pivotal Target for Itch and Skin Diseases. Mol Pharmacol 2017; 92:193-200. [DOI: 10.1124/mol.116.107946] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 03/31/2017] [Indexed: 12/15/2022] Open
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Broad LM, Mogg AJ, Eberle E, Tolley M, Li DL, Knopp KL. TRPV3 in Drug Development. Pharmaceuticals (Basel) 2016; 9:E55. [PMID: 27618069 PMCID: PMC5039508 DOI: 10.3390/ph9030055] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/19/2016] [Accepted: 08/31/2016] [Indexed: 02/01/2023] Open
Abstract
Transient receptor potential vanilloid 3 (TRPV3) is a member of the TRP (Transient Receptor Potential) super-family. It is a relatively underexplored member of the thermo-TRP sub-family (Figure 1), however, genetic mutations and use of gene knock-outs and selective pharmacological tools are helping to provide insights into its role and therapeutic potential. TRPV3 is highly expressed in skin, where it is implicated in skin physiology and pathophysiology, thermo-sensing and nociception. Gain of function TRPV3 mutations in rodent and man have enabled the role of TRPV3 in skin health and disease to be particularly well defined. Pre-clinical studies provide some rationale to support development of TRPV3 antagonists for therapeutic application for the treatment of inflammatory skin conditions, itch and pain. However, to date, only one compound directed towards block of the TRPV3 receptor (GRC15300) has progressed into clinical trials. Currently, there are no known clinical trials in progress employing a TRPV3 antagonist.
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Affiliation(s)
- Lisa M Broad
- Lilly Research Centre, Eli Lilly and Company Ltd., Erl Wood Manor, Windlesham, Surrey GU20 6PH, UK.
| | - Adrian J Mogg
- Lilly Research Centre, Eli Lilly and Company Ltd., Erl Wood Manor, Windlesham, Surrey GU20 6PH, UK.
| | - Elizabeth Eberle
- Covance Greenfield Laboratories, Greenfield, Indianapolis, IN 46140, USA.
| | - Marcia Tolley
- Covance Greenfield Laboratories, Greenfield, Indianapolis, IN 46140, USA.
| | - Dominic L Li
- Lilly Research Laboratories, Eli Lilly and Company Inc., Indianapolis, IN 46285, USA.
| | - Kelly L Knopp
- Lilly Research Laboratories, Eli Lilly and Company Inc., Indianapolis, IN 46285, USA.
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Majdinasab N, Siahpush A, Mousavinejad SK, Malayeri A, Sajedi SA, Bizhanzadeh P. Effect of Boswellia serrata on cognitive impairment in multiple sclerosis patients. J Herb Med 2016. [DOI: 10.1016/j.hermed.2016.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Pollastro F, Golin S, Chianese G, Putra MY, Schiano Moriello A, De Petrocellis L, García V, Munoz E, Taglialatela-Scafati O, Appendino G. Neuroactive and Anti-inflammatory Frankincense Cembranes: A Structure-Activity Study. JOURNAL OF NATURAL PRODUCTS 2016; 79:1762-1768. [PMID: 27352042 DOI: 10.1021/acs.jnatprod.6b00141] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An expeditious isolation method for the cembrane diterpene alcohols incensol (1a) and serratol (2) has been developed from respectively African and Indian frankincense. The two native alcohols and a series of semisynthetic derivatives of incensol were evaluated for transient receptor potential vanilloid 3 (TRPV3) activation and the inhibition of NF-κB, the putative molecular targets underlying the psychotropic and anti-inflammatory activities of incensol acetate (IA, 1b). Serratol (2) was the most potent TRPV3 activator, outperforming by 2 orders of magnitude the reference agonist thymol and by 1 order of magnitude incensol acetate (1b). Acylation, epimerization, and oxidation did not significantly improve the affinity of incensol for TRPV3, while NF-κB inhibition, marginal for both natural alcohols, could be improved by esterification of incensol (1a) with lipophilic acids. Interestingly, incensol (1a) but not IA (1b) was a potent inhibitor of STAT3, raising the possibility that hydrolysis to incensol (1a) might be involved in the in vivo biological activity of IA (1b). Serratol was not amenable to chemical modification, but some marine cembranoids related to the frankincense diterpenoids showed a certain degree of TRPV3-activating properties, qualifying the aliphatic macrocyclic cembrane skeleton as a selective chemotype to explore the pharmacology of TRPV3, a thermo-TRP otherwise resistant to modulation by small molecules.
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Affiliation(s)
- Federica Pollastro
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale , Largo Donegani 2, 28100 Novara, Italy
| | - Samantha Golin
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale , Largo Donegani 2, 28100 Novara, Italy
| | - Giuseppina Chianese
- Dipartimento di Farmacia, Università di Napoli Federico II , Via Montesano 49, 80131 Napoli, Italy
| | - Masteria Yunovilsa Putra
- Dipartimento di Farmacia, Università di Napoli Federico II , Via Montesano 49, 80131 Napoli, Italy
| | - Aniello Schiano Moriello
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, CNR , Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Luciano De Petrocellis
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, CNR , Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Victor García
- Maimonides Biomedical Research Institute of Córdoba, Reina Sofía University Hospital, Department of Cell Biology, Physiology and Immunology, University of Córdoba , Avenida Menéndez Pidal s/n, 14004 Córdoba, Spain
| | - Eduardo Munoz
- Maimonides Biomedical Research Institute of Córdoba, Reina Sofía University Hospital, Department of Cell Biology, Physiology and Immunology, University of Córdoba , Avenida Menéndez Pidal s/n, 14004 Córdoba, Spain
| | | | - Giovanni Appendino
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale , Largo Donegani 2, 28100 Novara, Italy
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Beyond Cannabis: Plants and the Endocannabinoid System. Trends Pharmacol Sci 2016; 37:594-605. [DOI: 10.1016/j.tips.2016.04.005] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/11/2016] [Accepted: 04/11/2016] [Indexed: 12/21/2022]
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Niebler J, Buettner A. Frankincense Revisited, Part I: Comparative Analysis of Volatiles in Commercially RelevantBoswelliaSpecies. Chem Biodivers 2016; 13:613-29. [DOI: 10.1002/cbdv.201500329] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 11/06/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Johannes Niebler
- Department of Chemistry and Pharmacy, Food Chemistry; Emil Fischer Center; Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Henkestrasse 9 DE-91054 Erlangen
| | - Andrea Buettner
- Department of Chemistry and Pharmacy, Food Chemistry; Emil Fischer Center; Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Henkestrasse 9 DE-91054 Erlangen
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Hosseini-Sharifabad M, Kamali-Ardakani R, Hosseini-Sharifabad A. Beneficial effect of Boswellia serrata gum resin on spatial learning and the dendritic tree of dentate gyrus granule cells in aged rats. AVICENNA JOURNAL OF PHYTOMEDICINE 2016; 6:189-97. [PMID: 27222832 PMCID: PMC4877965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The hippocampal formation, particularly the dentate gyrus (DG), shows age-related morphological changes that could cause memory decline. It is indicated that Boswellia resins attenuates memory deficits and the major component of Boswellia serrata (Bs) gum resin, beta boswellic acid increased neurite outgrowth and branching in hippocampal neurons. This study was designed to investigate the effect of Boswellia treatment on spatial learning performance and the morphology of dentate granule cells in aged rats. MATERIALS AND METHODS Sixteen male Wistar rats (24 months old) were divided into experimental and control groups. Experimental group was intragastrically administered with the aqueous extract of Bs (100 mg/kg/d for 8 weeks) and control group received a similar volume of water. Spatial learning performance of rats was tested using Morris water maze task. At the end of experiment, the brain was removed and the right hippocampus was serially sectioned for morphometric analysis. The Cavalieri principle was employed to estimate the volume of the DG. A quantitative Golgi study was used to analyze the dendritic trees of dentate granule cells. RESULTS Chronic treatment with Bs improved spatial learning capability during the three acquisition days. Comparisons also revealed that Bs-treated aged rat had greater DG with increased dendritic complexity in the dentate granule cells than control rats. Hippocampal granule cells of Bs-treated aged rats had more dendritic segments, larger arbors, more numerical branching density and more dendritic spines in comparison to control animals. CONCLUSION This study provided a neuro-anatomical basis for memory improvement due to chronic treatment with Bs.
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Ibeas Bih C, Chen T, Nunn AVW, Bazelot M, Dallas M, Whalley BJ. Molecular Targets of Cannabidiol in Neurological Disorders. Neurotherapeutics 2015; 12:699-730. [PMID: 26264914 PMCID: PMC4604182 DOI: 10.1007/s13311-015-0377-3] [Citation(s) in RCA: 349] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Cannabis has a long history of anecdotal medicinal use and limited licensed medicinal use. Until recently, alleged clinical effects from anecdotal reports and the use of licensed cannabinoid medicines are most likely mediated by tetrahydrocannabinol by virtue of: 1) this cannabinoid being present in the most significant quantities in these preparations; and b) the proportion:potency relationship between tetrahydrocannabinol and other plant cannabinoids derived from cannabis. However, there has recently been considerable interest in the therapeutic potential for the plant cannabinoid, cannabidiol (CBD), in neurological disorders but the current evidence suggests that CBD does not directly interact with the endocannabinoid system except in vitro at supraphysiological concentrations. Thus, as further evidence for CBD's beneficial effects in neurological disease emerges, there remains an urgent need to establish the molecular targets through which it exerts its therapeutic effects. Here, we conducted a systematic search of the extant literature for original articles describing the molecular pharmacology of CBD. We critically appraised the results for the validity of the molecular targets proposed. Thereafter, we considered whether the molecular targets of CBD identified hold therapeutic potential in relevant neurological diseases. The molecular targets identified include numerous classical ion channels, receptors, transporters, and enzymes. Some CBD effects at these targets in in vitro assays only manifest at high concentrations, which may be difficult to achieve in vivo, particularly given CBD's relatively poor bioavailability. Moreover, several targets were asserted through experimental designs that demonstrate only correlation with a given target rather than a causal proof. When the molecular targets of CBD that were physiologically plausible were considered for their potential for exploitation in neurological therapeutics, the results were variable. In some cases, the targets identified had little or no established link to the diseases considered. In others, molecular targets of CBD were entirely consistent with those already actively exploited in relevant, clinically used, neurological treatments. Finally, CBD was found to act upon a number of targets that are linked to neurological therapeutics but that its actions were not consistent withmodulation of such targets that would derive a therapeutically beneficial outcome. Overall, we find that while >65 discrete molecular targets have been reported in the literature for CBD, a relatively limited number represent plausible targets for the drug's action in neurological disorders when judged by the criteria we set. We conclude that CBD is very unlikely to exert effects in neurological diseases through modulation of the endocannabinoid system. Moreover, a number of other molecular targets of CBD reported in the literature are unlikely to be of relevance owing to effects only being observed at supraphysiological concentrations. Of interest and after excluding unlikely and implausible targets, the remaining molecular targets of CBD with plausible evidence for involvement in therapeutic effects in neurological disorders (e.g., voltage-dependent anion channel 1, G protein-coupled receptor 55, CaV3.x, etc.) are associated with either the regulation of, or responses to changes in, intracellular calcium levels. While no causal proof yet exists for CBD's effects at these targets, they represent the most probable for such investigations and should be prioritized in further studies of CBD's therapeutic mechanism of action.
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Affiliation(s)
- Clementino Ibeas Bih
- School of Chemistry, Food and Nutritional Sciences, and Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AP, UK
| | - Tong Chen
- School of Chemistry, Food and Nutritional Sciences, and Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AP, UK
| | | | - Michaël Bazelot
- School of Chemistry, Food and Nutritional Sciences, and Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AP, UK
- GW Pharmaceuticals Ltd, Sovereign House, Vision Park, Chivers Way, Histon, Cambridge, CB24 9BZ, UK
| | - Mark Dallas
- School of Chemistry, Food and Nutritional Sciences, and Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AP, UK
| | - Benjamin J Whalley
- School of Chemistry, Food and Nutritional Sciences, and Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AP, UK.
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Earley S, Brayden JE. Transient receptor potential channels in the vasculature. Physiol Rev 2015; 95:645-90. [PMID: 25834234 DOI: 10.1152/physrev.00026.2014] [Citation(s) in RCA: 291] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The mammalian genome encodes 28 distinct members of the transient receptor potential (TRP) superfamily of cation channels, which exhibit varying degrees of selectivity for different ionic species. Multiple TRP channels are present in all cells and are involved in diverse aspects of cellular function, including sensory perception and signal transduction. Notably, TRP channels are involved in regulating vascular function and pathophysiology, the focus of this review. TRP channels in vascular smooth muscle cells participate in regulating contractility and proliferation, whereas endothelial TRP channel activity is an important contributor to endothelium-dependent vasodilation, vascular wall permeability, and angiogenesis. TRP channels are also present in perivascular sensory neurons and astrocytic endfeet proximal to cerebral arterioles, where they participate in the regulation of vascular tone. Almost all of these functions are mediated by changes in global intracellular Ca(2+) levels or subcellular Ca(2+) signaling events. In addition to directly mediating Ca(2+) entry, TRP channels influence intracellular Ca(2+) dynamics through membrane depolarization associated with the influx of cations or through receptor- or store-operated mechanisms. Dysregulation of TRP channels is associated with vascular-related pathologies, including hypertension, neointimal injury, ischemia-reperfusion injury, pulmonary edema, and neurogenic inflammation. In this review, we briefly consider general aspects of TRP channel biology and provide an in-depth discussion of the functions of TRP channels in vascular smooth muscle cells, endothelial cells, and perivascular cells under normal and pathophysiological conditions.
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Affiliation(s)
- Scott Earley
- Department of Pharmacology, University of Nevada School of Medicine, Reno, Nevada; and Department of Pharmacology, University of Vermont College of Medicine, Burlington, Vermont
| | - Joseph E Brayden
- Department of Pharmacology, University of Nevada School of Medicine, Reno, Nevada; and Department of Pharmacology, University of Vermont College of Medicine, Burlington, Vermont
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Billen B, Brams M, Debaveye S, Remeeva A, Alpizar YA, Waelkens E, Kreir M, Brüggemann A, Talavera K, Nilius B, Voets T, Ulens C. Different ligands of the TRPV3 cation channel cause distinct conformational changes as revealed by intrinsic tryptophan fluorescence quenching. J Biol Chem 2015; 290:12964-74. [PMID: 25829496 PMCID: PMC4432310 DOI: 10.1074/jbc.m114.628925] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Indexed: 11/26/2022] Open
Abstract
TRPV3 is a thermosensitive ion channel primarily expressed in epithelial tissues of the skin, nose, and tongue. The channel has been implicated in environmental thermosensation, hyperalgesia in inflamed tissues, skin sensitization, and hair growth. Although transient receptor potential (TRP) channel research has vastly increased our understanding of the physiological mechanisms of nociception and thermosensation, the molecular mechanics of these ion channels are still largely elusive. In order to better comprehend the functional properties and the mechanism of action in TRP channels, high-resolution three-dimensional structures are indispensable, because they will yield the necessary insights into architectural intimacies at the atomic level. However, structural studies of membrane proteins are currently hampered by difficulties in protein purification and in establishing suitable crystallization conditions. In this report, we present a novel protocol for the purification of membrane proteins, which takes advantage of a C-terminal GFP fusion. Using this protocol, we purified human TRPV3. We show that the purified protein is a fully functional ion channel with properties akin to the native channel using planar patch clamp on reconstituted channels and intrinsic tryptophan fluorescence spectroscopy. Using intrinsic tryptophan fluorescence spectroscopy, we reveal clear distinctions in the molecular interaction of different ligands with the channel. Altogether, this study provides powerful tools to broaden our understanding of ligand interaction with TRPV channels, and the availability of purified human TRPV3 opens up perspectives for further structural and functional studies.
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Affiliation(s)
- Bert Billen
- From the Laboratory of Structural Neurobiology and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 601, 3000 Leuven, Belgium,
| | - Marijke Brams
- From the Laboratory of Structural Neurobiology and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 601, 3000 Leuven, Belgium
| | - Sarah Debaveye
- From the Laboratory of Structural Neurobiology and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 601, 3000 Leuven, Belgium
| | - Alina Remeeva
- From the Laboratory of Structural Neurobiology and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 601, 3000 Leuven, Belgium
| | - Yeranddy A Alpizar
- the Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 802, 3000 Leuven, Belgium
| | - Etienne Waelkens
- the Laboratory of Protein Phosphorylation and Proteomics, Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 901, 3000 Leuven, Belgium, and
| | - Mohamed Kreir
- Nanion Technologies GmbH, Gabrielenstrasse 9, D-80636 Munich, Germany
| | - Andrea Brüggemann
- Nanion Technologies GmbH, Gabrielenstrasse 9, D-80636 Munich, Germany
| | - Karel Talavera
- the Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 802, 3000 Leuven, Belgium
| | - Bernd Nilius
- the Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 802, 3000 Leuven, Belgium
| | - Thomas Voets
- the Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 802, 3000 Leuven, Belgium
| | - Chris Ulens
- From the Laboratory of Structural Neurobiology and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Herestraat 49 Box 601, 3000 Leuven, Belgium
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Raison CL, Hale MW, Williams LE, Wager TD, Lowry CA. Somatic influences on subjective well-being and affective disorders: the convergence of thermosensory and central serotonergic systems. Front Psychol 2015; 5:1580. [PMID: 25628593 PMCID: PMC4292224 DOI: 10.3389/fpsyg.2014.01580] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 12/21/2014] [Indexed: 12/20/2022] Open
Abstract
Current theories suggest that the brain is the sole source of mental illness. However, affective disorders, and major depressive disorder (MDD) in particular, may be better conceptualized as brain-body disorders that involve peripheral systems as well. This perspective emphasizes the embodied, multifaceted physiology of well-being, and suggests that afferent signals from the body may contribute to cognitive and emotional states. In this review, we focus on evidence from preclinical and clinical studies suggesting that afferent thermosensory signals contribute to well-being and depression. Although thermoregulatory systems have traditionally been conceptualized as serving primarily homeostatic functions, increasing evidence suggests neural pathways responsible for regulating body temperature may be linked more closely with emotional states than previously recognized, an affective warmth hypothesis. Human studies indicate that increasing physical warmth activates brain circuits associated with cognitive and affective functions, promotes interpersonal warmth and prosocial behavior, and has antidepressant effects. Consistent with these effects, preclinical studies in rodents demonstrate that physical warmth activates brain serotonergic neurons implicated in antidepressant-like effects. Together, these studies suggest that (1) thermosensory pathways interact with brain systems that control affective function, (2) these pathways are dysregulated in affective disorders, and (3) activating warm thermosensory pathways promotes a sense of well-being and has therapeutic potential in the treatment of affective disorders.
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Affiliation(s)
- Charles L. Raison
- Department of Psychiatry, Norton School of Family and Consumer Sciences, College of Medicine, College of Agriculture and Life Sciences, University of ArizonaTucson, AZ, USA
| | - Matthew W. Hale
- Department of Psychology, School of Psychological Science, La Trobe UniversityBundoora, Australia
| | - Lawrence E. Williams
- Marketing Division, Leeds School of Business, University of Colorado BoulderBoulder, CO, USA
| | - Tor D. Wager
- Department of Psychology and Neuroscience, University of Colorado BoulderBoulder, CO, USA
| | - Christopher A. Lowry
- Department of Integrative Physiology, University of Colorado BoulderBoulder, CO, USA
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Zhang E, Liao P. Brain transient receptor potential channels and stroke. J Neurosci Res 2014; 93:1165-83. [PMID: 25502473 DOI: 10.1002/jnr.23529] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/10/2014] [Accepted: 11/04/2014] [Indexed: 02/06/2023]
Abstract
Transient receptor potential (TRP) channels have been increasingly implicated in the pathological mechanisms of CNS disorders. TRP expression has been detected in neurons, astrocytes, oligodendrocytes, microglia, and ependymal cells as well as in the cerebral vascular endothelium and smooth muscle. In stroke, TRPC3/4/6, TRPM2/4/7, and TRPV1/3/4 channels have been found to participate in ischemia-induced cell death, whereas other TRP channels, in particular those expressed in nonneuronal cells, have been less well studied. This review summarizes the current knowledge on the expression and functions of the TRP channels in various cell types in the brain and our current understanding of TRP channels in stroke pathophysiology. In an aging society, the occurrence of stroke is expected to increase steadily, and there is an urgent requirement to improve the current stroke management strategy. Therefore, elucidating the roles of TRP channels in stroke could shed light on the development of novel therapeutic strategies and ultimately improve stroke outcome.
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Affiliation(s)
- Eric Zhang
- Calcium Signalling Laboratory, National Neuroscience Institute, Singapore
| | - Ping Liao
- Calcium Signalling Laboratory, National Neuroscience Institute, Singapore.,Duke-NUS Graduate Medical School Singapore, Singapore
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Caterina MJ. TRP channel cannabinoid receptors in skin sensation, homeostasis, and inflammation. ACS Chem Neurosci 2014; 5:1107-16. [PMID: 24915599 PMCID: PMC4240254 DOI: 10.1021/cn5000919] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
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In
the skin, cannabinoid lipids, whether of endogenous or exogenous
origin, are capable of regulating numerous sensory, homeostatic, and
inflammatory events. Although many of these effects are mediated by
metabotropic cannabinoid receptors, a growing body of evidence has
revealed that multiple members of the transient receptor potential
(TRP) ion channel family can act as “ionotropic cannabinoid
receptors”. Furthermore, many of these same TRP channels are
intimately involved in cutaneous processes that include the initiation
of pain, temperature, and itch perception, the maintenance of epidermal
homeostasis, the regulation of hair follicles and sebaceous glands,
and the modulation of dermatitis. Ionotropic cannabinoid receptors
therefore represent potentially attractive targets for the therapeutic
use of cannabinoids to treat sensory and dermatological diseases.
Furthermore, the interactions between neurons and other cell types
that are mediated by cutaneous ionotropic cannabinoid receptors are
likely to be recapitulated during physiological and pathophysiological
processes in the central nervous system and elsewhere, making the
skin an ideal setting in which to dissect general complexities of
cannabinoid signaling.
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Affiliation(s)
- Michael J. Caterina
- Departments of Neurosurgery,
Biological Chemistry, and Neuroscience, Neurosurgery Pain Research
Institute, Center for Sensory Biology, Johns Hopkins School of Medicine, 725 N. Wolfe St., Baltimore, Maryland 21205, United States
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Abstract
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To
date, 28 mammalian transient receptor potential (TRP) channels
have been cloned and characterized. They are grouped into six subfamilies
on the basis of their amino acid sequence homology: TRP Ankyrin (TRPA),
TRP Canonical (TRPC), TRP Melastatin (TRPM), TRP Mucolipin (TRPML),
TRP Polycystin (TRPP), and TRP Vanilloid (TRPV). Most of the TRP channels
are nonselective cation channels expressed on the cell membrane and
exhibit variable permeability ratios for Ca2+ versus Na+. They mediate sensory functions (such as vision, nociception,
taste transduction, temperature sensation, and pheromone signaling)
and homeostatic functions (such as divalent cation flux, hormone release,
and osmoregulation). Significant progress has been made in our understanding
of the specific roles of these TRP channels and their activation mechanisms.
In this Review, the emphasis will be on the activation of TRP channels
by phytochemicals that are claimed to exert health benefits. Recent
findings complement the anecdotal evidence that some of these phytochemicals
have specific receptors and the activation of which is responsible
for the physiological effects. Now, the targets for these phytochemicals
are being unveiled; a specific hypothesis can be proposed and tested
experimentally to infer a scientific validity of the claims of the
health benefits. The broader and pressing issues that have to be addressed
are related to the quantities of the active ingredients in a given
preparation, their bioavailability, metabolism, adverse effects, excretion,
and systemic versus local effects.
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Affiliation(s)
- Louis S. Premkumar
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois 62702, United States
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Abstract
TRP channels are expressed in taste buds, nerve fibers, and keratinocytes in the oronasal cavity. These channels play integral roles in transducing chemical stimuli, giving rise to sensations of taste, irritation, warmth, coolness, and pungency. Specifically, TRPM5 acts downstream of taste receptors in the taste transduction pathway. TRPM5 channels convert taste-evoked intracellular Ca(2+) release into membrane depolarization to trigger taste transmitter secretion. PKD2L1 is expressed in acid-sensitive (sour) taste bud cells but is unlikely to be the transducer for sour taste. TRPV1 is a receptor for pungent chemical stimuli such as capsaicin and for several irritants (chemesthesis). It is controversial whether TRPV1 is present in the taste buds and plays a direct role in taste. Instead, TRPV1 is expressed in non-gustatory sensory afferent fibers and in keratinocytes of the oronasal cavity. In many sensory fibers and epithelial cells lining the oronasal cavity, TRPA1 is also co-expressed with TRPV1. As with TRPV1, TRPA1 transduces a wide variety of irritants and, in combination with TRPV1, assures that there is a broad response to noxious chemical stimuli. Other TRP channels, including TRPM8, TRPV3, and TRPV4, play less prominent roles in chemesthesis and no known role in taste, per se. The pungency of foods and beverages is likely highly influenced by the temperature at which they are consumed, their acidity, and, for beverages, their carbonation. All these factors modulate the activity of TRP channels in taste buds and in the oronasal mucosa.
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Affiliation(s)
- Stephen D Roper
- Department of Physiology and Biophysics, Miller School of Medicine, University of Miami, 1600 NW 10th Ave., Miami, FL, 33136, USA,
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