1
|
Petry J, Weiser T, Griesbaum L, Schröder K, Hoch CC, Bashiri Dezfouli A, Shoykhet M, Wollenberg B. 1.8-cineole prevents platelet activation and aggregation by activating the cAMP pathway via the adenosine A 2A receptor. Life Sci 2024; 350:122746. [PMID: 38810792 DOI: 10.1016/j.lfs.2024.122746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
AIMS Dysregulated platelet aggregation is a fatal condition in many bacterial- and virus-induced diseases. However, classical antithrombotics cannot completely prevent immunothrombosis, due to the unaddressed mechanisms towards inflammation. Thus, targeting platelet hyperactivation together with inflammation might provide new treatment options in diseases, characterized by immunothrombosis, such as COVID-19 and sepsis. The aim of this study was to investigate the antiaggregatory effect and mode of action of 1.8-cineole, a monoterpene derived from the essential oil of eucalyptus leaves, known for its anti-inflammatory proprieties. MAIN METHODS Platelet activity was monitored by measuring the expression and release of platelet activation markers, i.e., P-selectin, CD63 and CCL5, as well as platelet aggregation, upon treatment with 1.8-cineole and stimulation with several classical stimuli and bacteria. A kinase activity assay was used to elucidate the mode of action, followed by a detailed analysis of the involvement of the adenylyl-cyclase (AC)-cyclic adenosine monophosphate (cAMP)-protein kinase A (PKA) pathway by Western blot and ELISA. KEY FINDINGS 1.8-cineole prevented the expression and release of platelet activation markers, as well as platelet aggregation, upon induction of aggregation with classical stimuli and immunological agonists. Mechanistically, 1.8- cineole influences the activation of the AC-cAMP-PKA pathway, leading to higher cAMP levels and vasodilator-stimulated phosphoprotein (VASP) phosphorylation. Finally, blocking the adenosine A2A receptor reversed the antithrombotic effect of 1.8-cineole. SIGNIFICANCE Given the recognized anti-inflammatory attributes of 1.8-cineole, coupled with our findings, 1.8-cineole might emerge as a promising candidate for treating conditions marked by platelet activation and abnormal inflammation.
Collapse
Affiliation(s)
- Julie Petry
- Department of Otolaryngology, Head and Neck Surgery, Technical University of Munich and Klinikum Rechts der Isar, Munich, Germany
| | - Tobias Weiser
- Department of Otolaryngology, Head and Neck Surgery, Technical University of Munich and Klinikum Rechts der Isar, Munich, Germany
| | - Lena Griesbaum
- Department of Otolaryngology, Head and Neck Surgery, Technical University of Munich and Klinikum Rechts der Isar, Munich, Germany
| | - Kathrin Schröder
- Institute for Medical Microbiology, Immunology and Hygiene, School of Medicine, Technical University of Munich, Munich, Germany
| | - Cosima C Hoch
- Department of Otolaryngology, Head and Neck Surgery, Technical University of Munich and Klinikum Rechts der Isar, Munich, Germany
| | - Ali Bashiri Dezfouli
- Department of Otolaryngology, Head and Neck Surgery, Technical University of Munich and Klinikum Rechts der Isar, Munich, Germany; Central Institute for Translational Cancer Research, Technical University of Munich (TranslaTUM), Department of Radiation Oncology, Klinikum Rechts der Isar, Munich, Germany
| | - Maria Shoykhet
- Department of Otolaryngology, Head and Neck Surgery, Technical University of Munich and Klinikum Rechts der Isar, Munich, Germany
| | - Barbara Wollenberg
- Department of Otolaryngology, Head and Neck Surgery, Technical University of Munich and Klinikum Rechts der Isar, Munich, Germany.
| |
Collapse
|
2
|
Pries R, Jeschke S, Leichtle A, Bruchhage KL. Modes of Action of 1,8-Cineol in Infections and Inflammation. Metabolites 2023; 13:751. [PMID: 37367909 DOI: 10.3390/metabo13060751] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/06/2023] [Accepted: 06/12/2023] [Indexed: 06/28/2023] Open
Abstract
The monoterpene 1,8-Cineol is a natural plant-based therapeutic agent that is commonly applied to treat different inflammatory diseases due to its mucolytic, anti-microbial and anti-inflammatory properties. It has become increasingly clear in the recent years that 1,8-Cineol spreads almost everywhere in the human body after its oral administration, from the gut to the blood to the brain. Its anti-microbial potential and even its anti-viral effects have been observed to include numerous bacteria and fungi species. Many recent studies help to better understand the cellular and molecular immunological consequences of 1,8-Cineol treatment in inflammatory diseases and further provide information concerning the mechanistic modes of action in the regulation of distinct inflammatory biosynthetic pathways. This review aims to present a holistic and understandable overview of the different aspects of 1,8-Cineol in infections and inflammation.
Collapse
Affiliation(s)
- Ralph Pries
- Department of Otorhinolaryngology, University of Luebeck, 23538 Luebeck, Germany
| | - Stephanie Jeschke
- Department of Otorhinolaryngology, University of Luebeck, 23538 Luebeck, Germany
| | - Anke Leichtle
- Department of Otorhinolaryngology, University of Luebeck, 23538 Luebeck, Germany
| | | |
Collapse
|
3
|
Cai ZM, Peng JQ, Chen Y, Tao L, Zhang YY, Fu LY, Long QD, Shen XC. 1,8-Cineole: a review of source, biological activities, and application. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2021; 23:938-954. [PMID: 33111547 DOI: 10.1080/10286020.2020.1839432] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
1,8-Cineole (also known as eucalyptol) is mostly extracted from the essential oils of plants, which showed extensively pharmacological properties including anti-inflammatory and antioxidant mainly via the regulation on NF-κB and Nrf2, and was used for the treatment of respiratory diseases and cardiovascular, etc. Although various administration routes have been used in the application of 1.8-cineole, few formulations have been developed to improve its stability and bioavailability. This review retrospects the researches on the source, biological activities, mechanisms, and application of 1,8-cineole since 2000, which provides a view for the further studies on the application and formulations of 1,8-cineole.
Collapse
Affiliation(s)
- Zi-Min Cai
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550014, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
- The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Jian-Qing Peng
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550014, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
- The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Yi Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550014, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
- The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Ling Tao
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550014, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
- The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Yan-Yan Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550014, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
- The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Ling-Yun Fu
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550014, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
- The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Qing-De Long
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550014, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
- The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Xiang-Chun Shen
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550014, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
- The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| |
Collapse
|
4
|
Fan K, Huang W, Qi H, Song C, He C, Liu Y, Zhang Q, Wang L, Sun H. The Egr-1/miR-15a-5p/GPX4 axis regulates ferroptosis in acute myocardial infarction. Eur J Pharmacol 2021; 909:174403. [PMID: 34339707 DOI: 10.1016/j.ejphar.2021.174403] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 07/30/2021] [Accepted: 07/30/2021] [Indexed: 01/18/2023]
Abstract
Acute myocardial infarction (AMI) is a type of cardiovascular diseases that severely threatens human being, but the mechanisms have not been thoroughly clarified. Here, we detected that microRNA-15a-5p (miR-15a-5p) was up-regulated in AMI. Knockdown of miR-15a-5p reduced cell mortality in hypoxic-treated myocardial cells. In addition, we determined that glutathione peroxidase4 (GPX4) was the direct target of miR-15a-5p by luciferase reporter assay. Over-expression of miR-15a-5p strengthened ferroptosis, then aggravated myocardial cell hypoxia injury. Mechanistically, silencing transcription factor early growth response-1 (Egr-1) inhibited the level of miR-15a-5p, increased the protein expression of GPX4, accompanied by reduced ferroptosis and alleviated myocardial injury. In summary, these results provide a novel signaling pathway during the progression of acute myocardial infarction, namely Egr-1/miR-15a-5p/GPX4/ferroptosis.
Collapse
Affiliation(s)
- Kai Fan
- Department of Pathophysiology, Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China
| | - Wei Huang
- Department of Pharmacology, Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China
| | - Hanping Qi
- Department of Pharmacology, Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China
| | - Chao Song
- Department of Pharmacology, Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China
| | - Cong He
- Department of Pharmacology, Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China
| | - Yongsheng Liu
- Department of Pharmacology, Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China
| | - Qianlong Zhang
- Department of Physiology, Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China
| | - Lixin Wang
- Department of Pharmacology, Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China
| | - Hongli Sun
- Department of Pharmacology, Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China.
| |
Collapse
|
5
|
Bibi S, Sarfraz A, Mustafa G, Ahmad Z, Zeb MA, Wang YB, Khan T, Khan MS, Kamal MA, Yu H. Impact of Traditional Plants and their Secondary Metabolites in the Discovery of COVID-19 Treatment. Curr Pharm Des 2021; 27:1123-1143. [PMID: 33213320 DOI: 10.2174/1381612826666201118103416] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/12/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Coronavirus Disease-2019 belongs to the family of viruses which cause serious pneumonia along with fever, breathing issues and infection of lungs, and was first reported in China and later spread worldwide. OBJECTIVE Several studies and clinical trials have been conducted to identify potential drugs and vaccines for Coronavirus Disease-2019. The present study listed natural secondary metabolites identified from plant sources with antiviral properties and could be a safer and tolerable treatment for Coronavirus Disease-2019. METHODS A comprehensive search on the reported studies was conducted using different search engines such as Google Scholar, SciFinder, Sciencedirect, Medline PubMed, and Scopus for the collection of research articles based on plant-derived secondary metabolites, herbal extracts, and traditional medicine for coronavirus infections. RESULTS Status of COVID-19 worldwide and information of important molecular targets involved in COVID- 19 are described, and through literature search, it is highlighted that numerous plant species and their extracts possess antiviral properties and are studied with respect to coronavirus treatments. Chemical information, plant source, test system type with a mechanism of action for each secondary metabolite are also mentioned in this review paper. CONCLUSION The present review has listed plants that have presented antiviral potential in the previous coronavirus pandemics and their secondary metabolites, which could be significant for the development of novel and a safer drug which could prevent and cure coronavirus infection worldwide.
Collapse
Affiliation(s)
- Shabana Bibi
- Yunnan Herbal Laboratory, College of Ecology and Environment, Institute of Herbal Biotic Resource, Yunnan University, Kunming 650504, Yunnan, China
| | - Ayesha Sarfraz
- Department of Biosciences, Faculty of Sciences, COMSATS University Islamabad, Sahiwal, Pakistan
| | - Ghazala Mustafa
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Zeeshan Ahmad
- Kohsar Homeopathic Medical College, Rawalpindi, Pakistan
| | - Muhammad A Zeb
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Yuan-Bing Wang
- Yunnan Herbal Laboratory, College of Ecology and Environment, Institute of Herbal Biotic Resource, Yunnan University, Kunming 650504, Yunnan, China
| | - Tahir Khan
- Yunnan Herbal Laboratory, College of Ecology and Environment, Institute of Herbal Biotic Resource, Yunnan University, Kunming 650504, Yunnan, China
| | - Muhammad S Khan
- Department of Biosciences, Faculty of Sciences, COMSATS University Islamabad, Sahiwal, Pakistan
| | - Mohammad A Kamal
- West China School of Nursing / Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Hong Yu
- Yunnan Herbal Laboratory, College of Ecology and Environment, Institute of Herbal Biotic Resource, Yunnan University, Kunming 650504, Yunnan, China
| |
Collapse
|
6
|
Immunomodulatory Activities of Selected Essential Oils. Biomolecules 2020; 10:biom10081139. [PMID: 32756359 PMCID: PMC7464830 DOI: 10.3390/biom10081139] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/14/2020] [Accepted: 07/31/2020] [Indexed: 12/14/2022] Open
Abstract
Recently, the application of herbal medicine for the prevention and treatment of diseases has gained increasing attention. Essential oils (EOs) are generally known to exert various pharmacological effects, such as antiallergic, anticancer, anti-inflammatory, and immunomodulatory effects. Current literature involving in vitro and in vivo studies indicates the potential of various herbal essential oils as suitable immunomodulators for the alternative treatment of infectious or immune diseases. This review highlights the cellular effects induced by EOs, as well as the molecular impacts of EOs on cytokines, immunoglobulins, or regulatory pathways. The results reviewed in this article revealed a significant reduction in relevant proinflammatory cytokines, as well as induction of anti-inflammatory markers. Remarkably, very little clinical study data involving the immunomodulatory effects of EOs are available. Furthermore, several studies led to contradictory results, emphasizing the need for a multiapproach system to better characterize EOs. While immunomodulatory effects were reported, the toxic potential of EOs must be clearly considered in order to secure future applications.
Collapse
|
7
|
Guo Y, Zhang T, Zhong J, Ba T, Xu T, Zhang Q, Sun M. Identification of the Volatile Compounds and Observation of the Glandular Trichomes in Opisthopappus taihangensis and Four Species of Chrysanthemum. PLANTS 2020; 9:plants9070855. [PMID: 32640748 PMCID: PMC7412243 DOI: 10.3390/plants9070855] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 06/30/2020] [Accepted: 07/03/2020] [Indexed: 11/23/2022]
Abstract
Opisthopappus taihangensis (Ling) Shih, a wild relative germplasm of chrysanthemum, releases a completely different fragrance from chrysanthemum species. We aimed to identify the volatile compounds of the leaves of O. taihangensis and four other Chrysanthemum species using headspace solid-phase micro-extraction combined with gas chromatography-mass spectrometry (HS-SPME-GC/MS). In total, 70 compounds were detected, and terpenoids accounted for the largest percentage in these five species. Many specific compounds were only emitted from O. taihangensis and not from the other four species. In particular, 1,8-cineole could be responsible for the special leaf fragrance of O. taihangensis as it accounted for the largest proportion of the compounds in O. taihangensis but a small or no proportion at all in other species. The glandular trichomes (GTs) in the leaves are the main organs responsible for the emission of volatiles. To explore the relationship between the emissions and the density of the GTs on the leaf epidermis, the shape and density of the GTs were observed and calculated, respectively. The results showed that the trichomes have two shapes in these leaves: T-shaped non-glandular trichomes and capitate trichomes. Histochemical staining analyses indicated that terpenoids are mainly emitted from capitate glandular trichomes. Correlation analysis showed that the volatile amount of terpenoids is highly related to the density of capitate trichomes. In O. taihangensis, the terpenoids content and density of capitate trichomes are the highest. We identified the diversity of leaf volatiles from O. taihangensis and four other Chrysanthemum species and found a possible relationship between the content of volatile compounds and the density of capitate trichomes, which explained the cause of the fragrance of O. taihangensis leaves.
Collapse
Affiliation(s)
- Yanhong Guo
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (Y.G.); (T.Z.); (J.Z.); (T.B.); (T.X.); (Q.Z.)
| | - Tengxun Zhang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (Y.G.); (T.Z.); (J.Z.); (T.B.); (T.X.); (Q.Z.)
| | - Jian Zhong
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (Y.G.); (T.Z.); (J.Z.); (T.B.); (T.X.); (Q.Z.)
| | - Tingting Ba
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (Y.G.); (T.Z.); (J.Z.); (T.B.); (T.X.); (Q.Z.)
| | - Ting Xu
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (Y.G.); (T.Z.); (J.Z.); (T.B.); (T.X.); (Q.Z.)
| | - Qixiang Zhang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (Y.G.); (T.Z.); (J.Z.); (T.B.); (T.X.); (Q.Z.)
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China
| | - Ming Sun
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (Y.G.); (T.Z.); (J.Z.); (T.B.); (T.X.); (Q.Z.)
- Correspondence:
| |
Collapse
|
8
|
Gondim FDL, Serra DS, Cavalcante FSÁ. Effects of Eucalyptol in respiratory system mechanics on acute lung injury after exposure to short-term cigarette smoke. Respir Physiol Neurobiol 2019; 266:33-38. [DOI: 10.1016/j.resp.2019.04.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/09/2019] [Accepted: 04/18/2019] [Indexed: 11/25/2022]
|
9
|
Bruchhage KL, Koennecke M, Drenckhan M, Plötze-Martin K, Pries R, Wollenberg B. 1,8-cineol inhibits the Wnt/β-catenin signaling pathway through GSK-3 dephosphorylation in nasal polyps of chronic rhinosinusitis patients. Eur J Pharmacol 2018; 835:140-146. [PMID: 30081034 DOI: 10.1016/j.ejphar.2018.07.060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/25/2018] [Accepted: 07/31/2018] [Indexed: 12/17/2022]
Abstract
Chronic rhinosinusitis with nasal polyps (CRSwNP) represents a benign neoplasm of the nasal mucosa, which leads to a decreased breathing capacity and reduced olfaction. The pathogenesis and the molecular mechanisms driving nasal polyps are not very well known. GSK-3 is involved in the regulation of various biosynthetic pathways and various kinases are able to regulate the GSK-3. Therefore, we investigated the effect of the monoterpene oxide 1,8-cineol on the regulation of the Wnt/β-catenin signaling pathway with its central regulator protein GSK-3 in vitro. We determined GSK-3 expression and phosphorylation as well as the expression of negative regulators (Akt and SGK) and downstream activation of β-catenin in nasal polyps of patients with CRSwNP by immunohistochemistry and Western blot experiments. In this study we demonstrated for the first time, that 1,8-cineol acts as a potential inhibitor of the Wnt/β-catenin signaling pathway, by affecting the inhibitory phosphorylation of GSK-3, which is the key regulator of the β-catenin activity. Our data provide novel insights in the regulatory networks responsible for the progression of CRSwNP and furthermore represent a new mechanism of 1,8-cineol activity, which may lead to novel treatment approaches to this natural drug.
Collapse
Affiliation(s)
- Karl-Ludwig Bruchhage
- Department of Otorhinolaryngology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Michael Koennecke
- Department of Otorhinolaryngology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Maren Drenckhan
- Department of Otorhinolaryngology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Kirstin Plötze-Martin
- Department of Otorhinolaryngology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Ralph Pries
- Department of Otorhinolaryngology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Barbara Wollenberg
- Department of Otorhinolaryngology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany.
| |
Collapse
|
10
|
1,8-cineole prevents UVB-induced skin carcinogenesis by targeting the aryl hydrocarbon receptor. Oncotarget 2017; 8:105995-106008. [PMID: 29285309 PMCID: PMC5739696 DOI: 10.18632/oncotarget.22519] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 10/30/2017] [Indexed: 12/22/2022] Open
Abstract
1,8-cineole is a natural monoterpene cyclic ether present in Eucalyptus, and has been reported to exhibit anti-inflammatory and antioxidant effects. However, the preventive effect of 1,8-cineole on skin carcinogenesis and the molecular mechanism of action responsible remains unknown. In the present study, we investigated the effect of 1,8-cineole on UVB-induced skin carcinogenesis. 1,8-cineole inhibited UVB-induced cyclooxygenase-2 (COX-2) protein and mRNA expression and prostaglandin E2 (PGE2) generation in HaCaT cells. 1,8-cineole also inhibited phosphorylation of extracellular signal-regulated kinase (ERK) 1/2, and phosphorylation of its upstream kinases, c-Src and epidermal growth factor receptor (EGFR). Quantitative real-time RT-PCR (qRT-PCR) and drug affinity responsive target stability (DARTS) assay results showed that 1,8-cineole suppressed UVB-induced expression of a target gene of the aryl hydrocarbon receptor (AhR), cyp1a1, and directly binds to AhR. Knockdown of AhR suppressed COX-2 expression as well as phosphorylation of ERK1/2 in HaCaT cells. Furthermore, topical treatment of 1,8-cineole on mouse skin delayed tumor incidence and reduced tumor numbers, while inhibiting COX-2 expression in vivo. Taken together, these results suggest that 1,8-cineole is a potent chemopreventive agent that inhibits UVB-induced COX-2 expression by targeting AhR to suppress UVB-induced skin carcinogenesis.
Collapse
|
11
|
Caceres AI, Liu B, Jabba SV, Achanta S, Morris JB, Jordt SE. Transient Receptor Potential Cation Channel Subfamily M Member 8 channels mediate the anti-inflammatory effects of eucalyptol. Br J Pharmacol 2017; 174:867-879. [PMID: 28240768 DOI: 10.1111/bph.13760] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 02/11/2017] [Accepted: 02/16/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND AND PURPOSE Eucalyptol (1,8-cineol), the major ingredient in the essential oil of eucalyptus leaves and other medicinal plants, has long been known for its anti-inflammatory properties. Eucalyptol interacts with the TRP cation channels among other targets, but it is unclear which of these mediates its anti-inflammatory effects. EXPERIMENTAL APPROACH Effects of eucalyptol were compared in wild-type and TRPM8 channel-deficient mice in two different models: footpad inflammation elicited by complete Freund's adjuvant (CFA) and pulmonary inflammation following administration of LPS. Oedema formation, behavioural inflammatory pain responses, leukocyte infiltration, enzyme activities and cytokine and chemokine levels were measured. KEY RESULTS In the CFA model, eucalyptol strongly attenuated oedema and mechanical allodynia and reduced levels of inflammatory cytokines (IL-1β, TNF-α and IL-6), effects comparable with those of ibuprofen. In the LPS model of pulmonary inflammation, eucalyptol treatment diminished leukocyte infiltration, myeloperoxidase activity and production of TNF-α, IL-1β, IFN-γ and IL-6. Genetic deletion of TRPM8 channels abolished the anti-inflammatory effects of eucalyptol in both models. Eucalyptol was at least sixfold more potent on human, than on mouse TRPM8 channels. A metabolite of eucalyptol, 2-hydroxy-1,8-cineol, also activated human TRPM8 channels. CONCLUSION AND IMPLICATIONS Among the pharmacological targets of eucalyptol, TRPM8 channels were essential for its anti-inflammatory effects in mice. Human TRPM8 channels are more sensitive to eucalyptol than rodent TRPM8 channels explaining the higher potency of eucalyptol in humans. Metabolites of eucalyptol could contribute to its anti-inflammatory effects. The development of more potent and selective TRPM8 agonists may yield novel anti-inflammatory agents.
Collapse
Affiliation(s)
- Ana I Caceres
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC, USA
| | - Boyi Liu
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC, USA
- Department of Neurobiology and Acupuncture Research, The 3rd Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Sairam V Jabba
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC, USA
| | | | - John B Morris
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT, USA
| | - Sven-Eric Jordt
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC, USA
- Yale Tobacco Center of Regulatory Science (TCORS), Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| |
Collapse
|
12
|
Lai YN, Li Y, Fu LC, Zhao F, Liu N, Zhang FX, Xu PP. Combinations of 1,8-cineol and oseltamivir for the treatment of influenza virus A (H3N2) infection in mice. J Med Virol 2017; 89:1158-1167. [DOI: 10.1002/jmv.24755] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 11/15/2016] [Accepted: 12/07/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Yan-ni Lai
- Institute of Tropical Medicine; Guangzhou University of Chinese Medicine; Guangzhou China
| | - Yun Li
- Institute of Tropical Medicine; Guangzhou University of Chinese Medicine; Guangzhou China
| | - Lin-chun Fu
- Institute of Tropical Medicine; Guangzhou University of Chinese Medicine; Guangzhou China
| | - Fang Zhao
- Institute of Tropical Medicine; Guangzhou University of Chinese Medicine; Guangzhou China
| | - Ni Liu
- Institute of Tropical Medicine; Guangzhou University of Chinese Medicine; Guangzhou China
| | - Feng-xue Zhang
- Institute of Tropical Medicine; Guangzhou University of Chinese Medicine; Guangzhou China
| | - Pei-ping Xu
- Institute of Tropical Medicine; Guangzhou University of Chinese Medicine; Guangzhou China
| |
Collapse
|
13
|
Li Y, Lai Y, Wang Y, Liu N, Zhang F, Xu P. 1, 8-Cineol Protect Against Influenza-Virus-Induced Pneumonia in Mice. Inflammation 2016; 39:1582-93. [PMID: 27351430 DOI: 10.1007/s10753-016-0394-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
1,8-Cineol is a major monoterpene principally from eucalyptus essential oils and has been shown to exert anti-inflammatory, antiviral, and inhibitory of nuclear factor (NF)-kB effect. In the present study, we evaluated the effect of 1,8-cineol on mice infected with influenza A virus. We found that 1,8-cineol protects against influenza viral infection in mice. Moreover, 1,8-cineol efficiently decreased the level of IL-4, IL-5, IL-10, and MCP-1 in nasal lavage fluids and the level of IL-1β, IL-6, TNF-α, and IFN-γ in lung tissues of mice infected with influenza virus. The results also showed that 1,8-cineol reduced the expression of NF-kB p65, intercellular adhesion molecule (ICAM)-1, and vascular cell adhesion molecule (VCAM)-1 in lung tissues. Thus, 1,8-cineol appears to be able to augment protection against IFV infection in mice via attenuation of pulmonary inflammatory responses.
Collapse
Affiliation(s)
- Yun Li
- Institute of Tropical Medicine, Guangzhou University of Chinese Medicine, 12 Jichang Rd., San Yuanli St., Bai Yun Dist., Guangzhou, Guangdong, 510405, People's Republic of China
| | - Yanni Lai
- Institute of Tropical Medicine, Guangzhou University of Chinese Medicine, 12 Jichang Rd., San Yuanli St., Bai Yun Dist., Guangzhou, Guangdong, 510405, People's Republic of China
| | - Yao Wang
- Institute of Tropical Medicine, Guangzhou University of Chinese Medicine, 12 Jichang Rd., San Yuanli St., Bai Yun Dist., Guangzhou, Guangdong, 510405, People's Republic of China
| | - Ni Liu
- Institute of Tropical Medicine, Guangzhou University of Chinese Medicine, 12 Jichang Rd., San Yuanli St., Bai Yun Dist., Guangzhou, Guangdong, 510405, People's Republic of China
| | - Fengxue Zhang
- Institute of Tropical Medicine, Guangzhou University of Chinese Medicine, 12 Jichang Rd., San Yuanli St., Bai Yun Dist., Guangzhou, Guangdong, 510405, People's Republic of China
| | - Peiping Xu
- Institute of Tropical Medicine, Guangzhou University of Chinese Medicine, 12 Jichang Rd., San Yuanli St., Bai Yun Dist., Guangzhou, Guangdong, 510405, People's Republic of China.
| |
Collapse
|
14
|
Seol GH, Kim KY. Eucalyptol and Its Role in Chronic Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 929:389-398. [PMID: 27771935 DOI: 10.1007/978-3-319-41342-6_18] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Patients with chronic diseases such as cardiovascular diseases, chronic respiratory diseases, and neurological diseases have been shown to benefit from treatments such as aromatherapy in addition to medication. Most chronic diseases are caused by chronic inflammation and oxidative stress as well as harmful factors. Eucalyptol (1,8-cineole), a terpenoid oxide isolated from Eucalyptus species, is a promising compound for treating such conditions as it has been shown to have anti-inflammatory and antioxidant effects in various diseases, including respiratory disease, pancreatitis, colon damage, and cardiovascular and neurodegenerative diseases. Eucalyptol suppresses lipopolysaccharide (LPS)-induced proinflammatory cytokine production through the action of NF-κB, TNF-α, IL-1β, and IL-6 and the extracellular signal-regulated kinase (ERK) pathway, and reduces oxidative stress through the regulation of signaling pathways and radical scavenging. The effects of eucalyptol have been studied in several cell and animal models as well as in patients with chronic diseases. Furthermore, eucalyptol can pass the blood-brain barrier and hence can be used as a carrier to deliver drugs to the brain via a microemulsion system. In summary, the various biological activities of eucalyptol such as its anti-inflammatory and antioxidant properties, as well as its physicochemical characteristics, make this compound a potentially important drug for the treatment of chronic diseases.
Collapse
Affiliation(s)
- Geun Hee Seol
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, 02841, Republic of Korea.
| | - Ka Young Kim
- Department of Nursing Science, School of Nursing, Gachon University, Incheon, 21936, Republic of Korea
| |
Collapse
|
15
|
Kim KY, Lee HS, Seol GH. Eucalyptol suppresses matrix metalloproteinase-9 expression through an extracellular signal-regulated kinase-dependent nuclear factor-kappa B pathway to exert anti-inflammatory effects in an acute lung inflammation model. J Pharm Pharmacol 2015; 67:1066-74. [DOI: 10.1111/jphp.12407] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 01/07/2015] [Indexed: 01/20/2023]
Abstract
Abstract
Objectives
The acute lung injury (ALI) model is characterised by a severe acute inflammatory response in the lungs that represents the pathogenesis of acute respiratory distress syndrome (ARDS). In this study, we sought to elucidate the anti-inflammatory mechanism of eucalyptol in relation to tissue remodelling in acute lung inflammation.
Methods
BALB/C mice were intraperitoneally injected with eucalyptol (100, 200 or 400 mg/kg) or dexamethasone (1 mg/kg) 1 h before intratracheal challenge with lipopolysaccharide (LPS; 1.5 mg/kg) and sacrificed after 4 h. The anti-inflammatory effects of eucalyptol were assessed by determining cell counts, measuring cytokine and nitric oxide production and performing Western blotting and histological analyses.
Key findings
Eucalyptol attenuated inflammation-associated increases in cell numbers, matrix metalloproteinase-9 (MMP-9) expression, production of cytokines (tumour necrosis factor-α and interleukin-6) and nitric oxide, and nuclear factor-kappa B (NF-κB) and phosphorylated extracellular signal-regulated kinase protein levels induced by LPS in bronchoalveolar lavage fluid from ALI mice. Furthermore, pretreatment with 400 mg/kg eucalyptol prevented LPS-induced histopathological changes. Collectively, these results indicate that eucalyptol acts through a mechanism involving decreased MMP-9 expression and an extracellular signal-regulated kinase-dependent NF-κB pathway to exert anti-inflammatory actions in acute lung inflammation.
Conclusions
Thus, eucalyptol may be a potentially important agent in the treatment of pulmonary inflammation.
Collapse
Affiliation(s)
- Ka Young Kim
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
| | - Hui Su Lee
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
| | - Geun Hee Seol
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
| |
Collapse
|
16
|
The eucalyptus oil ingredient 1,8-cineol induces oxidative DNA damage. Arch Toxicol 2014; 89:797-805. [PMID: 24912782 DOI: 10.1007/s00204-014-1281-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 05/20/2014] [Indexed: 10/25/2022]
Abstract
The natural compound 1,8-cineol, also known as eucalyptol, is a major constituent of eucalyptus oil. This epoxy-monoterpene is used as flavor and fragrance in consumer goods as well as medical therapies. Due to its anti-inflammatory properties, 1,8-cineol is also applied to treat upper and lower airway diseases. Despite its widespread use, only little is known about the genotoxicity of 1,8-cineol in mammalian cells. This study investigates the genotoxicity and cytotoxicity of 1,8-cineol in human and hamster cells. First, we observed a significant and concentration-dependent increase in oxidative DNA damage in human colon cancer cells, as detected by the Formamidopyrimidine-DNA glycosylase (Fpg)-modified alkaline comet assay. Pre-treatment of cells with the antioxidant N-acetylcysteine prevented the formation of Fpg-sensitive sites after 1,8-cineol treatment, supporting the notion that 1,8-cineol induces oxidative DNA damage. In the dose range of DNA damage induction, 1,8-cineol did neither reduce the viability of colon cancer cells nor affected their cell cycle distribution, suggesting that cells tolerate 1,8-cineol-induced oxidative DNA damage by engaging DNA repair. To test this hypothesis, hamster cell lines with defects in BRCA2 and Rad51, which are essentials players of homologous recombination (HR)-mediated repair, were treated with 1,8-cineol. The monoterpene induced oxidative DNA damage and subsequent DNA double-strand breaks in the hamster cell lines tested. Intriguingly, we detected a significant concentration-dependent decrease in viability of the HR-defective cells, whereas the corresponding wild-type cell lines with functional HR were not affected. Based on these findings, we conclude that 1,8-cineol is weakly genotoxic, inducing primarily oxidative DNA damage, which is most likely tolerated in DNA repair proficient cells without resulting in cell cycle arrest and cell death. However, cells with deficiency in HR were compromised after 1,8-cineol treatment, suggesting a protective role of HR in response to high doses of 1,8-cineol.
Collapse
|
17
|
|
18
|
Yamada AN, Grespan R, Yamada ÁT, Silva EL, Silva-Filho SE, Damião MJ, de Oliveira Dalalio MM, Bersani-Amado CA, Cuman RKN. Anti-inflammatory Activity of Ocimum americanum L. Essential Oil in Experimental Model of Zymosan-Induced Arthritis. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2013; 41:913-26. [DOI: 10.1142/s0192415x13500614] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Essential oils are potential sources of novel components for medicinal use. The present study was performed to investigate the composition and anti-inflammatory activity of Ocimum americanum L. essential oil (OEO) and its components in an experimental model of zymosan-induced arthritis and paw edema. The essential oil was obtained by hydro-distillation and analyzed by gas chromatography-mass spectrometry. Twenty-six components, representing 98.9% of the total oil, were characterized, with linalool (19.63%) and 1,8-cineole (17.27%) as the main components. The OEO and its two constituents inhibited leukocyte influx into the synovial space and reduced paw edema induced by zymosan. The OEO also inhibited interferon-γ levels but did not reduce transforming growth factor-β levels. Additionally, the OEO protected against leukocyte influx into the synovial membrane and cartilage destruction in knee joints in arthritic mice. These findings indicate that the essential oil of Ocimum americanum L. exerted significant anti-inflammatory effects, likely related to its main compounds.
Collapse
Affiliation(s)
- Alciléia Nunes Yamada
- Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, Paraná, Brazil
| | - Renata Grespan
- Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, Paraná, Brazil
| | - Áureo Tatsumi Yamada
- Department of Chemistry, State University of Maringá, Maringá, Paraná, Brazil
- Laboratory of Histochemistry and Cytochemistry, Institute for Biology, UNICAMP, Campinas, Brazil
| | | | | | - Marcio José Damião
- Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, Paraná, Brazil
| | | | | | | |
Collapse
|
19
|
1,8-Cineol inhibits nuclear translocation of NF-κB p65 and NF-κB-dependent transcriptional activity. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:2866-2878. [PMID: 23872422 DOI: 10.1016/j.bbamcr.2013.07.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 07/08/2013] [Indexed: 01/07/2023]
Abstract
Natural plant-derived products are commonly applied to treat a broad range of human diseases, including cancer as well as chronic and acute airway inflammation. In this regard, the monoterpene oxide 1,8-cineol, the active ingredient of the clinically approved drug Soledum®, is well-established for the therapy of airway diseases, such as chronic sinusitis and bronchitis, chronic obstructive pulmonary disease and bronchial asthma. Although clinical trials underline the beneficial effects of 1,8-cineol in treating inflammatory diseases, the molecular mode of action still remains unclear. Here, we demonstrate for the first time a 1,8-cineol-depending reduction of NF-κB-activity in human cell lines U373 and HeLa upon stimulation using lipopolysaccharides (LPS). Immunocytochemistry further revealed a reduced nuclear translocation of NF-κB p65, while qPCR and western blot analyses showed strongly attenuated expression of NF-κB target genes. Treatment with 1,8-cineol further led to increased protein levels of IκBα in an IKK-independent matter, while FRET-analyses showed restoring of LPS-associated loss of interaction between NF-κB p65 and IκBα. We likewise observed reduced amounts of phosphorylated c-Jun N-terminal kinase 1/2 protein in U373 cells after exposure to 1,8-cineol. In addition, 1,8-cineol led to decreased amount of nuclear NF-κB p65 and reduction of its target gene IκBα at protein level in human peripheral blood mononuclear cells. Our findings suggest a novel mode of action of 1,8-cineol through inhibition of nuclear NF-κB p65 translocation via IκBα resulting in decreased levels of proinflammatory NF-κB target genes and may therefore broaden the field of clinical application of this natural drug for treating inflammatory diseases.
Collapse
|
20
|
Chang KM, Kim GH. Volatile aroma constituents of gukhwa (Chrysanthemum morifolium R.). Food Sci Biotechnol 2013. [DOI: 10.1007/s10068-013-0128-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
21
|
Guimarães AG, Quintans JSS, Quintans-Júnior LJ. Monoterpenes with Analgesic Activity-A Systematic Review. Phytother Res 2012; 27:1-15. [DOI: 10.1002/ptr.4686] [Citation(s) in RCA: 192] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 03/03/2012] [Accepted: 03/07/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Adriana G. Guimarães
- Departamento de Fisiologia; Universidade Federal de Sergipe (DFS/UFS); São Cristóvão SE Brazil
| | - Jullyana S. S. Quintans
- Departamento de Fisiologia; Universidade Federal de Sergipe (DFS/UFS); São Cristóvão SE Brazil
| | | |
Collapse
|
22
|
Miguel MG. Antioxidant and anti-inflammatory activities of essential oils: a short review. Molecules 2010; 15:9252-87. [PMID: 21160452 PMCID: PMC6259136 DOI: 10.3390/molecules15129252] [Citation(s) in RCA: 412] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 12/09/2010] [Accepted: 12/13/2010] [Indexed: 11/17/2022] Open
Abstract
Essential oils are complex mixtures isolated from aromatic plants which may possess antioxidant and anti-inflammatory activities of interest in thye food and cosmetic industries as well as in the human health field. In this work, a review was done on the most recent publications concerning their antioxidant and anti-inflammatory activities. At the same time a survey of the methods generally used for the evaluation of antioxidant activity and some of the mechanisms involved in the anti-inflammatory activities of essential oils are also reported.
Collapse
Affiliation(s)
- Maria Graça Miguel
- Faculdade de Ciências e Tecnologia, Universidade do Algarve, IBB, Centro de Biotecnologia Vegetal, Ed. 8, Campus de Gambelas, 8005-139 Faro, Portugal.
| |
Collapse
|
23
|
Involvement of mannose receptor in the preventive effects of mannose in lipopolysaccharide-induced acute lung injury. Eur J Pharmacol 2010; 641:229-37. [DOI: 10.1016/j.ejphar.2010.05.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2009] [Revised: 04/22/2010] [Accepted: 05/23/2010] [Indexed: 11/23/2022]
|
24
|
Bastos VPD, Gomes AS, Lima FJB, Brito TS, Soares PMG, Pinho JPM, Silva CS, Santos AA, Souza MHLP, Magalhães PJC. Inhaled 1,8-cineole reduces inflammatory parameters in airways of ovalbumin-challenged Guinea pigs. Basic Clin Pharmacol Toxicol 2010; 108:34-9. [PMID: 20722639 DOI: 10.1111/j.1742-7843.2010.00622.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Eucalyptol, also known as 1,8-cineole, is a monoterpene traditionally used to treat respiratory disorders due to its secretolytic properties. In addition to its myorelaxant effects, it also has anti-inflammatory actions in vitro. In this study, we aimed to evaluate the efficacy of acute treatment with 1,8-cineole on reducing airway inflammatory parameters. Ovalbumin (OVA)-sensitized guinea pigs were submitted to antigenic challenge (OVA) with or without pre-treatment with a single dose of 1,8-cineole administered by inhalation. Airway inflammatory parameters were reduced or absent in 1,8-cineole-treated animals as compared with untreated guinea pigs. Acute treatment with 1,8-cineole impaired the development of airway hyperresponsiveness to carbachol in isolated tracheal rings. Levels of the pro-inflammatory cytokines TNFα and IL-1β was lower in bronchoalveolar lavage fluid (BALF) of 1,8-cineol-treated guinea pigs than in untreated animals. 1,8-Cineole impaired the OVA-induced increase of the myeloperoxidase activity in BALF. 1,8-Cineole also prevented the reduction of the mucociliary clearance induced by the antigen presentation. The present investigation provides evidence that inhaled 1,8-cineole prevents hyperresponsiveness and inhibits inflammation in airways of ovalbumin-challenged guinea pigs.
Collapse
Affiliation(s)
- Vasco P D Bastos
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Chang KM, Kim GH. Volatile Aroma Composition of Chrysanthemum indicum L. Flower Oil. Prev Nutr Food Sci 2008. [DOI: 10.3746/jfn.2008.13.2.122] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|
26
|
Sun Y, Shu R, Zhang MZ, Wu AP. Toll-like receptor 4 signaling plays a role in triggering periodontal infection. ACTA ACUST UNITED AC 2008; 52:362-9. [DOI: 10.1111/j.1574-695x.2008.00386.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|