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Kowalczyk E, Kniotek M, Korczak-Kowalska G, Borysowski J. Progesterone-induced blocking factor and interleukin 4 as novel therapeutics in the treatment of recurrent pregnancy loss. Med Hypotheses 2022. [DOI: 10.1016/j.mehy.2022.110968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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2
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Czigle S, Bittner Fialová S, Tóth J, Mučaji P, Nagy M. Treatment of Gastrointestinal Disorders-Plants and Potential Mechanisms of Action of Their Constituents. Molecules 2022; 27:2881. [PMID: 35566230 PMCID: PMC9105531 DOI: 10.3390/molecules27092881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/19/2022] [Accepted: 04/26/2022] [Indexed: 11/16/2022] Open
Abstract
The worldwide prevalence of gastrointestinal diseases is about 40%, with standard pharmacotherapy being long-lasting and economically challenging. Of the dozens of diseases listed by the Rome IV Foundation criteria, for five of them (heartburn, dyspepsia, nausea and vomiting disorder, constipation, and diarrhoea), treatment with herbals is an official alternative, legislatively supported by the European Medicines Agency (EMA). However, for most plants, the Directive does not require a description of the mechanisms of action, which should be related to the therapeutic effect of the European plant in question. This review article, therefore, summarizes the basic pharmacological knowledge of synthetic drugs used in selected functional gastrointestinal disorders (FGIDs) and correlates them with the constituents of medicinal plants. Therefore, the information presented here is intended as a starting point to support the claim that both empirical folk medicine and current and decades-old treatments with official herbal remedies have a rational basis in modern pharmacology.
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Affiliation(s)
- Szilvia Czigle
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University Bratislava, Odbojárov 10, SK-832 32 Bratislava, Slovakia; (S.B.F.); (J.T.); (P.M.); (M.N.)
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3
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Qiao Z, Luo J, Tang YQ, Zhou Q, Qi H, Yin Z, Tang X, Zhu W, Zhang Y, Wei N, Wang K. Photosensitive and Photoswitchable TRPA1 Agonists Optically Control Pain through Channel Desensitization. J Med Chem 2021; 64:16282-16292. [PMID: 34662118 DOI: 10.1021/acs.jmedchem.1c01579] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Transient receptor potential ankyrin 1 (TRPA1) channel, as a nonselective ligand-gated cation channel robustly in dorsal root ganglion sensory neurons, is implicated in sensing noxious stimuli and nociceptive signaling. However, small-molecule tools targeting TRPA1 lack temporal and spatial resolution, limiting their use for validation of TRPA1 as a therapeutic target for pain. In our previous work, we found that 4,4'-(diazene-1,2-diyl)dianiline (AB1) is a photoswitchable TRPA1 agonist, but the poor water solubility and activity hinder its further development. Here, we report a series of specific and potent azobenzene-derived photoswitchable TRPA1 agonists (series 1 and 2) that enable optical control of the TRPA1 channel. Two representative compounds 1g and 2c can alleviate capsaicin-induced pain in the cheek model of mice through channel desensitization but not in TRPA1 knockout mice. Taken together, our findings demonstrate that photoswitchable TRPA1 agonists can be used as pharmacological tools for study of pain signaling.
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Affiliation(s)
- Zhen Qiao
- Departments of Pharmacology and Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Jiajie Luo
- Departments of Pharmacology and Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Yi-Quan Tang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Qiqi Zhou
- Department of Pharmacology, Qilu Medical University School of Pharmacy, Zibo 255300, China
| | - Hang Qi
- Departments of Pharmacology and Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Zhengji Yin
- Departments of Pharmacology and Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Xiaowen Tang
- Departments of Pharmacology and Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Wei Zhu
- Departments of Pharmacology and Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Yanru Zhang
- Departments of Pharmacology and Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China.,Institute of Innovative Drug, Qingdao University, Qingdao 266021, China
| | - Ningning Wei
- Departments of Pharmacology and Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China.,Institute of Innovative Drug, Qingdao University, Qingdao 266021, China
| | - KeWei Wang
- Departments of Pharmacology and Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China.,Institute of Innovative Drug, Qingdao University, Qingdao 266021, China
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Usnic Acid Potassium Salt: Evaluation of the Acute Toxicity and Antinociceptive Effect in Murine Model. Molecules 2019; 24:molecules24112042. [PMID: 31142045 PMCID: PMC6600509 DOI: 10.3390/molecules24112042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 05/21/2019] [Accepted: 05/23/2019] [Indexed: 01/22/2023] Open
Abstract
To obtain usnic acid potassium salt (PS-UA), the usnic acid (UA) was extracted and purified from the lichen Cladonia substellata, and modified to produce PS-UA. The structure was determined by 1H-NMR, IR and elemental analysis, ratified through computational models, as well as identification the site of K+ insertion in the molecule. Antinociceptive activity was detected through contortions in mice induced by acetic acid and formalin (phases I and II) after treatments with 10 and 20 mg/kg of PS-UA, indicating interference in both non-inflammatory and inflammatory pain. After oral administration at doses of 500, 1000 and 2000 mg/kg, no deaths of mice with treatments below 2000 mg/kg were observed. Except for body weight gain, food and water consumption decreased with treatments of 1000 and 2000 mg/kg, and the number of segmented leukocytes was higher for both treatments. Regarding serum levels, cholesterol and triglycerides decreased, however, there was an increase in hepatic transaminases with both treatments. Liver and kidney histological changes were detected in treatments of 2000 mg/kg, while the spleen was preserved. The PS-UA demonstrated antinociceptive activity while the acute toxicity at the concentration of 2000 mg/kg was the only dose that presented morphological changes in the liver and kidney.
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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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Memon T, Yarishkin O, Reilly CA, Križaj D, Olivera BM, Teichert RW. trans-Anethole of Fennel Oil is a Selective and Nonelectrophilic Agonist of the TRPA1 Ion Channel. Mol Pharmacol 2019; 95:433-441. [PMID: 30679204 DOI: 10.1124/mol.118.114561] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 01/18/2019] [Indexed: 11/22/2022] Open
Abstract
Transient receptor potential (TRP) cation channels are molecular targets of various natural products. TRPA1, a member of TRP channel family, is specifically activated by natural products such as allyl isothiocyanate (mustard oil), cinnamaldehyde (cinnamon), and allicin (garlic). In this study, we demonstrated that TRPA1 is also a target of trans-anethole in fennel oil (FO) and fennel seed extract. Similar to FO, trans-anethole selectively elicited calcium influx in TRPA1-expressing mouse sensory neurons of the dorsal root and trigeminal ganglia. These FO- and anethole-induced calcium responses were blocked by a selective TRPA1 channel antagonist, HC-030031. Moreover, both FO and trans-anethole induced calcium influx and transmembrane currents in HEK293 cells stably overexpressing human TRPA1 channels, but not in regular HEK293 cells. Mutation of the amino acids S873 and T874 binding site of human TRPA1 significantly attenuated channel activation by trans-anethole, whereas pretreating with glutathione, a nucleophile, did not. Conversely, activation of TRPA1 by the electrophile allyl isothiocyanate was abolished by glutathione, but was ostensibly unaffected by mutation of the ST binding site. Finally, it was found that trans-anethole was capable of desensitizing TRPA1, and unlike allyl isothiocyanate, it failed to induce nocifensive behaviors in mice. We conclude that trans-anethole is a selective, nonelectrophilic, and seemingly less-irritating agonist of TRPA1.
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Affiliation(s)
- Tosifa Memon
- Departments of Biology (T.M., B.M.O., R.W.T.), Pharmacology and Toxicology (T.M., C.A.R.), and Ophthalmology and Visual Sciences (O.Y., D.K.), University of Utah, Salt Lake City, Utah
| | - Oleg Yarishkin
- Departments of Biology (T.M., B.M.O., R.W.T.), Pharmacology and Toxicology (T.M., C.A.R.), and Ophthalmology and Visual Sciences (O.Y., D.K.), University of Utah, Salt Lake City, Utah
| | - Christopher A Reilly
- Departments of Biology (T.M., B.M.O., R.W.T.), Pharmacology and Toxicology (T.M., C.A.R.), and Ophthalmology and Visual Sciences (O.Y., D.K.), University of Utah, Salt Lake City, Utah
| | - David Križaj
- Departments of Biology (T.M., B.M.O., R.W.T.), Pharmacology and Toxicology (T.M., C.A.R.), and Ophthalmology and Visual Sciences (O.Y., D.K.), University of Utah, Salt Lake City, Utah
| | - Baldomero M Olivera
- Departments of Biology (T.M., B.M.O., R.W.T.), Pharmacology and Toxicology (T.M., C.A.R.), and Ophthalmology and Visual Sciences (O.Y., D.K.), University of Utah, Salt Lake City, Utah
| | - Russell W Teichert
- Departments of Biology (T.M., B.M.O., R.W.T.), Pharmacology and Toxicology (T.M., C.A.R.), and Ophthalmology and Visual Sciences (O.Y., D.K.), University of Utah, Salt Lake City, Utah
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7
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Xie Y, Dahlin JL, Oakley AJ, Casarotto MG, Board PG, Baell JB. Reviewing Hit Discovery Literature for Difficult Targets: Glutathione Transferase Omega-1 as an Example. J Med Chem 2018; 61:7448-7470. [PMID: 29652143 DOI: 10.1021/acs.jmedchem.8b00318] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Early stage drug discovery reporting on relatively new or difficult targets is often associated with insufficient hit triage. Literature reviews of such targets seldom delve into the detail required to critically analyze the associated screening hits reported. Here we take the enzyme glutathione transferase omega-1 (GSTO1-1) as an example of a relatively difficult target and review the associated literature involving small-molecule inhibitors. As part of this process we deliberately pay closer-than-usual attention to assay interference and hit quality aspects. We believe this Perspective will be a useful guide for future development of GSTO1-1 inhibitors, as well serving as a template for future review formats of new or difficult targets.
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Affiliation(s)
- Yiyue Xie
- Monash Institute of Pharmaceutical Sciences , Monash University , Parkville , Victoria 3052 , Australia
| | - Jayme L Dahlin
- Department of Pathology , Brigham and Women's Hospital , Boston , Massachusetts 02135 , United States
| | - Aaron J Oakley
- School of Chemistry , University of Wollongong , Wollongong , NSW 2522 , Australia
| | - Marco G Casarotto
- John Curtin School of Medical Research , Australian National University , Canberra , ACT 2600 , Australia
| | - Philip G Board
- John Curtin School of Medical Research , Australian National University , Canberra , ACT 2600 , Australia
| | - Jonathan B Baell
- Monash Institute of Pharmaceutical Sciences , Monash University , Parkville , Victoria 3052 , Australia.,School of Pharmaceutical Sciences , Nanjing Tech University , Nanjing , 211816 , People's Republic of China
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Giorgi A, Bassoli A, Borgonovo G, Panseri S, Manzo A, Pentimalli D, Schiano Moriello A, De Petrocellis L. Extracts and compounds active on TRP ion channels from Waldheimia glabra, a ritual medicinal plant from Himalaya. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2017; 32:80-87. [PMID: 28732812 DOI: 10.1016/j.phymed.2017.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 04/06/2017] [Accepted: 04/30/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Waldheimia glabra (Decne.) Regel is a wild plant from the Himalayan Mountains, commonly known as Smooth Ground Daisy. This plant is traditionally used by local populations in religious rituals (incense) or in traditional herbal medicine to treat skin diseases, headache, joint pain and fever. In literature few data are available on the investigation of this aromatic plant. PURPOSE The present work aims at deepening knowledge about the chemical composition of W. glabra extracts and incense, as well as its activity on TRP ion channels. METHODS Extracts and incense of W. glabra were analyzed by using HS-SPME GC/MS, GC/MS and NMR analysis. Tests on the activity of W. glabra extracts and isolated compounds (+)-ludartin 1 and B-ring-homo-tonghaosu 2 on TRP channels were also performed. RESULTS Some extracts and pure compounds from W. glabra showed an interesting activity in terms of efficacy and potency on rat TRPA1, an ion channel involved in several sensory mechanisms, including pungency, environmental irritation and pain perception. Activity is discussed and compared with that of other known TRPA1 natural agonists with different chemical structures. All compounds showed only a negligible inhibition activity on rat TRPM8 ion channel. CONCLUSIONS Our findings demonstrate that W. glabra is involved in the receptor activation mechanism and therefore represents a new natural product potentially useful in pharmaceutical and agrifood research.
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Affiliation(s)
- Annamaria Giorgi
- Centre of Applied Studies for the Sustainable Management and Protection of Mountain Areas (Ge.S.Di.Mont.), University of Milan, Via Morino 8, 25048 Edolo, Brescia, Italy.
| | - Angela Bassoli
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Via Celoria 2, 20133 Milan, Italy.
| | - Gigliola Borgonovo
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Via Celoria 2, 20133 Milan, Italy.
| | - Sara Panseri
- Department of Health, Animal Science and Food Safety (VESPA), University of Milan, Via Celoria 10, 20133 Milan, Italy.
| | - Alessandra Manzo
- Centre of Applied Studies for the Sustainable Management and Protection of Mountain Areas (Ge.S.Di.Mont.), University of Milan, Via Morino 8, 25048 Edolo, Brescia, Italy.
| | - Daniela Pentimalli
- Centre of Applied Studies for the Sustainable Management and Protection of Mountain Areas (Ge.S.Di.Mont.), University of Milan, Via Morino 8, 25048 Edolo, Brescia, Italy.
| | - Aniello Schiano Moriello
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, CNR, Pozzuoli, Napoli, Italy.
| | - Luciano De Petrocellis
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, CNR, Pozzuoli, Napoli, Italy.
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Yang Q, Zhao C, Zhao J, Ye Y. Photoresponsive nanocapsulation of cobra neurotoxin and enhancement of its central analgesic effects under red light. Int J Nanomedicine 2017; 12:3463-3470. [PMID: 28496322 PMCID: PMC5422569 DOI: 10.2147/ijn.s132510] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Cobra neurotoxin (CNT), a peptide isolated from snake venom of Naja naja atra, shows central analgesic effects in our previous research. In order to help CNT pass through blood–brain barrier (BBB) and improve its central analgesic effects, a new kind of CNT nanocapsules were prepared by double emulsification with soybean lecithin and cholesterol as the shell, and pheophorbide as the photosensitizer added to make it photoresponsive. The analgesic effects were evaluated by hot plate test and acetic acid-induced writhing in mice. The CNT nanocapsules had an average particle size of 229.55 nm, zeta potential of −53.00 mV, encapsulation efficiency of 84.81% and drug loading of 2.98%, when the pheophorbide content was 1% of lecithin weight. Pheophorbide was mainly distributed in outer layer of the CNT nanocapsules and increased the release of the CNT nanocapsules after 650 nm illumination. The central analgesic effects were improved after intraperitoneal injection of CNT at 25 and 50 µg·kg−1 under 650 nm irradiation for 30 min in the nasal cavity. Activation of pheophorbide by red light generated reactive oxygen species which opened the nanocapsules and BBB and helped the CNT enter the brain. This research provides a new drug delivery for treatment of central pain.
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Affiliation(s)
- Qian Yang
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, People's Republic of China
| | - Chuang Zhao
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, People's Republic of China
| | - Jun Zhao
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, People's Republic of China
| | - Yong Ye
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, People's Republic of China
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Kashyap D, Kumar G, Sharma A, Sak K, Tuli HS, Mukherjee TK. Mechanistic insight into carnosol-mediated pharmacological effects: Recent trends and advancements. Life Sci 2016; 169:27-36. [PMID: 27871947 DOI: 10.1016/j.lfs.2016.11.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 11/16/2016] [Accepted: 11/17/2016] [Indexed: 11/30/2022]
Abstract
For several decades, bioactive phytochemicals have been appreciated to prevent and cure various lethal diseases. Many studies have proven the ability of dietary phytochemicals to avoid and retard tumor initiation and progression. Among the pharmacologically active moieties, terpenoids are considered one of the most important classes. Carnosol, is also a kind of diterpenoid, which known to possess a range of therapeutic effects such as anti-cancer, anti-inflammatory, and anti-oxidant activities. All these effects are mediated via modulating different signaling cascades, including apoptosis regulating molecules (Bax/Bcl2), prosurvival-proproliferative molecules (Akt/mTOR, MAPK), transcription factors like NF-kappaB, STAT3-6, and steroid receptors, such as androgen and estrogen receptors. The present review highlights the recent trends and advancements have been done in the field of research by using carnosol.
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Affiliation(s)
- Dharambir Kashyap
- Department of Histopathology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, Punjab 160012, India
| | - Gaurav Kumar
- School of Biochemistry, University of Delhi, South Campus, New Delhi, India
| | - Ajay Sharma
- Department of Chemistry, Career Point University, Tikker-Kharwarian, Hamirpur, Himachal Pradesh 17604, India
| | - Katrin Sak
- Department of Hematology and Oncology, Institute of Clinical Medicine, University of Tartu, Estonia
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar University, Mullana, Ambala, Haryana 133207, India.
| | - Tapan K Mukherjee
- Department of Biotechnology, Maharishi Markandeshwar University, Mullana, Ambala, Haryana 133207, India
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Wang S, Zhai C, Zhang Y, Yu Y, Zhang Y, Ma L, Li S, Qiao Y. Cardamonin, a Novel Antagonist of hTRPA1 Cation Channel, Reveals Therapeutic Mechanism of Pathological Pain. Molecules 2016; 21:molecules21091145. [PMID: 27589700 PMCID: PMC6274095 DOI: 10.3390/molecules21091145] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/25/2016] [Accepted: 08/25/2016] [Indexed: 12/04/2022] Open
Abstract
The increasing demand for safe and effective treatments of chronic pain has promoted the investigation of novel analgesic drugs. Some herbals have been known to be able to relieve pain, while the chemical basis and target involved in this process remained to be clarified. The current study aimed to find anti-nociceptive candidates targeting transient receptor potential ankyrin 1 (TRPA1), a receptor that implicates in hyperalgesia and neurogenic inflammation. In the current study, 156 chemicals were tested for blocking HEK293/TRPA1 ion channel by calcium-influx assay. Docking study was conducted to predict the binding modes of hit compound with TRPA1 using Discovery Studio. Cytotoxicity in HEK293 was conducted by Cell Titer-Glo assay. Additionally, cardiotoxicity was assessed via xCELLigence RTCA system. We uncovered that cardamonin selectively blocked TRPA1 activation while did not interact with TRPV1 nor TRPV4 channel. A concentration-dependent inhibitory effect was observed with IC50 of 454 nM. Docking analysis of cardamonin demonstrated a compatible interaction with A-967079-binding site of TRPA1. Meanwhile, cardamonin did not significantly reduce HEK293 cell viability, nor did it impair cardiomyocyte constriction. Our data suggest that cardamonin is a selective TRPA1 antagonist, providing novel insight into the target of its anti-nociceptive activity.
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Affiliation(s)
- Shifeng Wang
- Key Laboratory of TCM-Information Engineer of State Administration of TCM, School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
| | - Chenxi Zhai
- Key Laboratory of TCM-Information Engineer of State Administration of TCM, School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
| | - Yanling Zhang
- Key Laboratory of TCM-Information Engineer of State Administration of TCM, School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
| | - Yangyang Yu
- Key Laboratory of TCM-Information Engineer of State Administration of TCM, School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
| | - Yuxin Zhang
- Key Laboratory of TCM-Information Engineer of State Administration of TCM, School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
| | - Lianghui Ma
- HD Biosciences, Co., Ltd., 590 Ruiqing Road, Zhangjiang Hi-Tech Park East Campus, Pudong New Area, Shanghai 201201, China.
| | - Shiyou Li
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, China.
| | - Yanjiang Qiao
- Key Laboratory of TCM-Information Engineer of State Administration of TCM, School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
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12
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McEntire DM, Kirkpatrick DR, Dueck NP, Kerfeld MJ, Smith TA, Nelson TJ, Reisbig MD, Agrawal DK. Pain transduction: a pharmacologic perspective. Expert Rev Clin Pharmacol 2016; 9:1069-80. [PMID: 27137678 DOI: 10.1080/17512433.2016.1183481] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Pain represents a necessary physiological function yet remains a significant pathological process in humans across the world. The transduction of a nociceptive stimulus refers to the processes that turn a noxious stimulus into a transmissible neurological signal. This involves a number of ion channels that facilitate the conversion of nociceptive stimulus into and electrical signal. AREAS COVERED An understanding of nociceptive physiology complements a discussion of analgesic pharmacology. Therefore, the two are presented together. In this review article, a critical evaluation is provided on research findings relating to both the physiology and pharmacology of relevant acid-sensing ion channels (ASICs), transient receptor potential (TRP) cation channels, and voltage-gated sodium (Nav) channels. Expert commentary: Despite significant steps toward identifying new and more effective modalities to treat pain, there remain many avenues of inquiry related to pain transduction. The activity of ASICs in nociception has been demonstrated but the physiology is not fully understood. A number of medications appear to interact with ASICs but no research has demonstrated pain-relieving clinical utility. Direct antagonism of TRPV1 channels is not in practice due to concerning side effects. However, work in this area is ongoing. Additional research in the of TRPA1, TRPV3, and TRPM8 may yield useful results. Local anesthetics are widely used. However, the risk for systemic effects limits the maximal safe dosage. Selective Nav antagonists have been identified that lack systemic effects.
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Affiliation(s)
- Dan M McEntire
- a Department of Clinical and Translational Science and Department of Anesthesiology , Creighton University School of Medicine , Omaha , NE , USA
| | - Daniel R Kirkpatrick
- a Department of Clinical and Translational Science and Department of Anesthesiology , Creighton University School of Medicine , Omaha , NE , USA
| | - Nicholas P Dueck
- a Department of Clinical and Translational Science and Department of Anesthesiology , Creighton University School of Medicine , Omaha , NE , USA
| | - Mitchell J Kerfeld
- a Department of Clinical and Translational Science and Department of Anesthesiology , Creighton University School of Medicine , Omaha , NE , USA
| | - Tyler A Smith
- a Department of Clinical and Translational Science and Department of Anesthesiology , Creighton University School of Medicine , Omaha , NE , USA
| | - Taylor J Nelson
- a Department of Clinical and Translational Science and Department of Anesthesiology , Creighton University School of Medicine , Omaha , NE , USA
| | - Mark D Reisbig
- a Department of Clinical and Translational Science and Department of Anesthesiology , Creighton University School of Medicine , Omaha , NE , USA
| | - Devendra K Agrawal
- a Department of Clinical and Translational Science and Department of Anesthesiology , Creighton University School of Medicine , Omaha , NE , USA
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Yamahara M, Sugimura K, Kumagai A, Fuchino H, Kuroi A, Kagawa M, Itoh Y, Kawahara H, Nagaoka Y, Iida O, Kawahara N, Takemori H, Watanabe H. Callicarpa longissima extract, carnosol-rich, potently inhibits melanogenesis in B16F10 melanoma cells. J Nat Med 2015; 70:28-35. [DOI: 10.1007/s11418-015-0933-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 08/02/2015] [Indexed: 12/14/2022]
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