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Ndreu L, Carlsson J, Ponting DJ, Niklasson IB, Stéen EJL, McHugh L, O’Boyle NM, Luthman K, Karlberg AT, Karlsson I. Bioactivation of cinnamic alcohol in a reconstructed human epidermis model and evaluation of sensitizing potency of the identified metabolites. FRONTIERS IN TOXICOLOGY 2024; 6:1398852. [PMID: 39050368 PMCID: PMC11266153 DOI: 10.3389/ftox.2024.1398852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 06/13/2024] [Indexed: 07/27/2024] Open
Abstract
Background Cinnamic alcohol is a natural compound, widely used in fragrances, which can cause allergic contact dermatitis. Cinnamic alcohol lacks intrinsic reactivity and autoxidation or metabolic activation is necessary for it to act as a sensitizer. Methods Bioactivation of cinnamic alcohol was explored using human liver microsomes, human liver S9 and SkinEthic™ Reconstructed Human Epidermis. A targeted multiple reaction monitoring mass spectrometry method was employed to study and quantify cinnamic alcohol along with eight potential phase I or phase II metabolites. The reconstructed human epidermis model, treated with cinnamic alcohol, was also analyzed with a non-targeted high-resolution mass spectrometry method to identify metabolites not included in the targeted method. Results Two metabolites identified with the targeted method, namely, pOH-cinnamic alcohol and pOH-cinnamic aldehyde, have not previously been identified in a metabolic in vitro system. Their reactivity toward biologically relevant nucleophiles was investigated and compared to their sensitizing potency in vivo in the murine local lymph node assay (LLNA). According to the LLNA, the pOH-cinnamic alcohol is non-sensitizing and pOH-cinnamic aldehyde is a moderate sensitizer. This makes pOH-cinnamic aldehyde less sensitizing than cinnamic aldehyde, which has been found to be a strong sensitizer in the LLNA. This difference in sensitizing potency was supported by the reactivity experiments. Cinnamic sulfate, previously proposed as a potential reactive metabolite of cinnamic alcohol, was not detected in any of the incubations. In addition, experiments examining the reactivity of cinnamic sulfate toward a model peptide revealed no evidence of adduct formation. The only additional metabolite that could be identified with the non-targeted method was a dioxolan derivative. Whether or not this metabolite, or one of its precursors, could contribute to the sensitizing potency of cinnamic alcohol would need further investigation. Discussion Cinnamic alcohol is one of the most common fragrance allergens and as it is more effective to patch test with the actual sensitizer than with the prohapten itself, it is important to identify metabolites with sensitizing potency. Further, improved knowledge of metabolic transformations occurring in the skin can improve prediction models for safety assessment of skin products.
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Affiliation(s)
- Lorena Ndreu
- Department of Environmental Science, Exposure, and Effect, Stockholm University, Stockholm, Sweden
| | - Josefine Carlsson
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - David J. Ponting
- Department of Chemistry and Molecular Biology, Dermatochemistry and Skin Allergy, University of Gothenburg, Gothenburg, Sweden
| | - Ida B. Niklasson
- Department of Chemistry and Molecular Biology, Dermatochemistry and Skin Allergy, University of Gothenburg, Gothenburg, Sweden
| | - E. Johanna L. Stéen
- Department of Chemistry and Molecular Biology, Medicinal Chemistry, University of Gothenburg, Gothenburg, Sweden
| | - Lukas McHugh
- Department of Environmental Science, Exposure, and Effect, Stockholm University, Stockholm, Sweden
| | - Niamh M. O’Boyle
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Panoz Institute and Trinity Biomedical Sciences Institute, Dublin, Ireland
| | - Kristina Luthman
- Department of Chemistry and Molecular Biology, Medicinal Chemistry, University of Gothenburg, Gothenburg, Sweden
| | - Ann-Therese Karlberg
- Department of Chemistry and Molecular Biology, Dermatochemistry and Skin Allergy, University of Gothenburg, Gothenburg, Sweden
| | - Isabella Karlsson
- Department of Environmental Science, Exposure, and Effect, Stockholm University, Stockholm, Sweden
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Kageyama T, Seo J, Yan L, Fukuda J. Cinnamic acid promotes elongation of hair peg-like sprouting in hair follicle organoids via oxytocin receptor activation. Sci Rep 2024; 14:4709. [PMID: 38409197 PMCID: PMC10897452 DOI: 10.1038/s41598-024-55377-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/22/2024] [Indexed: 02/28/2024] Open
Abstract
Considerable global demand exists for the development of novel drugs for the treatment of alopecia. A recent report demonstrated that oxytocin promotes hair growth activity in human dermal papilla (DP) cells; however, its application in drugs or cosmetic products is challenging because rapid degradation and relatively large molecular weight prevent long-term topical administration on the scalp. Here, we examined cinnamic acid, a small molecule activator for oxytocin receptor (OXTR) expression. Treatment with cinnamic acid led to upregulation of OXTR and trichogenic gene expression in human DP cells. Furthermore, inhibition of OXTR with an antagonist, L-371,257, suppressed hair growth-related gene expression in DP cells. These findings suggest that cinnamic acid enhances the hair growth ability of DP cells via oxytocin signaling. Additionally, we tested the hair growth-promoting effects of cinnamic acid using hair follicle organoids in vitro and observed that cinnamic acid significantly promoted the growth of hair peg-like sprouting. These promising results may be useful for developing hair growth-promoting products targeting oxytocin.
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Affiliation(s)
- Tatsuto Kageyama
- Kanagawa Institute of Industrial Science and Technology, 3-2-1 Sakado Takatsu-ku, Kawasaki, Kanagawa, 213-0012, Japan
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
- Institute of Advanced Sciences, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Jieun Seo
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
- Institute of Advanced Sciences, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Lei Yan
- Kanagawa Institute of Industrial Science and Technology, 3-2-1 Sakado Takatsu-ku, Kawasaki, Kanagawa, 213-0012, Japan
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
- Institute of Advanced Sciences, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Junji Fukuda
- Kanagawa Institute of Industrial Science and Technology, 3-2-1 Sakado Takatsu-ku, Kawasaki, Kanagawa, 213-0012, Japan.
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan.
- Institute of Advanced Sciences, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan.
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Dai Y, Zhang X, Xu Y, Wu Y, Yang L. The Protective Effects of Cinnamyl Alcohol Against Hepatic Steatosis, Oxidative and Inflammatory Stress in Nonalcoholic Fatty Liver Disease Induced by Childhood Obesity. Immunol Invest 2023; 52:1008-1022. [PMID: 37962037 DOI: 10.1080/08820139.2023.2280248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is characterized by excessive intracellular lipid accumulation, oxidative stress, and inflammation. Cinnamyl alcohol (CA), one of the cinnamon extracts, has been shown to exhibit anti-oxidative and anti-inflammatory activities. We proposed that CA was beneficial to NAFLD. METHODS Serum cytokines and components of the lipid metabolism were determined in children with NAFLD against age-matched comparisons. A NAFLD mouse model was established by high fat and high carbohydrate (HFHC) diet in male C57BL/6 mouse pups, followed by administration of CA. The effects of CA on lipid metabolism, oxidative stress, and inflammation in hepatic tissues were assessed. RESULTS Abnormal lipid metabolism and inflammatory responses were observed in the children with NAFLD as compared with the controls. CA reduced the weight of obese mice without affecting food intake as well as alleviating liver injury caused by HFHC feeding. CA was found to mitigate dyslipidemia and reduce hepatic steatosis in HFHC-fed mice by down-regulating genes related to lipogenesis, including peroxisome proliferator-activated receptor gamma (PPARγ), sterol regulatory element-binding transcription factor-1c (SREBP-1c), and acetyl-CoA carboxylase 1 (ACC1). Additionally, CA treatment reversed HFHC-induced oxidative stress and inflammation, evidenced by the decreased liver reactive oxygen species (ROS), hepatic inflammatory cytokine levels, and F4/80-positive macrophage infiltration in HFHC diet mice. CA reduced the protein levels of pyrin domain-containing protein 3 (NLRP3), adapter protein apoptosis-associated speck-like protein (ASC), and caspase-1 in the liver tissues significantly. CONCLUSION CA alleviates HFHC-induced NAFLD in mice, which is associated with the amelioration in lipid metabolism, oxidative stress, and inflammation.
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Affiliation(s)
- Yu Dai
- Department of Pediatrics, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Department of Pediatrics, Anhui Public Health Clinical Center, Hefei, China
| | - Xuemin Zhang
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Department of Pediatrics, Anhui Public Health Clinical Center, Hefei, China
| | - Yao Xu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Department of Pediatrics, Anhui Public Health Clinical Center, Hefei, China
| | - Ya Wu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Department of Pediatrics, Anhui Public Health Clinical Center, Hefei, China
| | - Liqi Yang
- Department of Pediatrics, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
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Bukhtiyarova MV, Nuzhdin AL, Bukhtiyarova GA. Comparative Study of Batch and Continuous Flow Reactors in Selective Hydrogenation of Functional Groups in Organic Compounds: What Is More Effective? Int J Mol Sci 2023; 24:14136. [PMID: 37762440 PMCID: PMC10531935 DOI: 10.3390/ijms241814136] [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: 08/30/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Many research papers describe selective hydrogenation of functional groups, such as nitro groups, carbonyl groups, or unsaturated carbon bonds to obtain fine chemicals or precursors of pharmaceuticals. Quite often, the catalyst performance is investigated in batch or continuous flow reactors without finding advantages and disadvantages of this or that regime. At the same time, the transition from batch processes to continuous flow occurs on the industrial scale. However, the batch process can be preferable for some reactions, in spite of its drawbacks. This review article aims to identify all publications that consider selective hydrogenation of functional groups in organic compounds, both in batch and continuous flow reactors, at the same reaction conditions that allow making conclusions about the benefits of one of the regimes in a particular case.
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Zhang R, Liu WQ, Ling S, Li J. Combining Cell-Free Expression and Multifactor Optimization for Enhanced Biosynthesis of Cinnamyl Alcohol. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37216486 DOI: 10.1021/acs.jafc.3c02340] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Cell-free expression systems have emerged as a potent and promising platform for the biosynthesis of chemicals by reconstituting in vitro expressed enzymes. Here, we report cell-free biosynthesis of cinnamyl alcohol (cinOH) with enhanced productivity by using the Plackett-Burman experimental design for multifactor optimization. Initially, four enzymes were individually expressed in vitro and directly mixed to reconstitute a biosynthetic route for the synthesis of cinOH. Then, the Plackett-Burman experimental design was used to screen multiple reaction factors and found three crucial parameters (i.e., reaction temperature, reaction volume, and carboxylic acid reductase) for the cinOH production. With the optimum reaction conditions, approximately 300 μM of cinOH was synthesized after 10 h of cell-free biosynthesis. Extending the production time to 24 h also increased the production to a maximum yield of 807 μM, which is nearly 10 times higher than the initial yield without optimization. This study demonstrates that cell-free biosynthesis can be combined with other powerful optimization methodologies such as the Plackett-Burman experimental design for enhanced production of valuable chemicals.
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Affiliation(s)
- Ren Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wan-Qiu Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Shengjie Ling
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Jian Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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Synthetic Cinnamides and Cinnamates: Antimicrobial Activity, Mechanism of Action, and In Silico Study. Molecules 2023; 28:molecules28041918. [PMID: 36838906 PMCID: PMC9967511 DOI: 10.3390/molecules28041918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/19/2023] Open
Abstract
The severity of infectious diseases associated with the resistance of microorganisms to drugs highlights the importance of investigating bioactive compounds with antimicrobial potential. Therefore, nineteen synthetic cinnamides and cinnamates having a cinnamoyl nucleus were prepared and submitted for the evaluation of antimicrobial activity against pathogenic fungi and bacteria in this study. To determine the minimum inhibitory concentration (MIC) of the compounds, possible mechanisms of antifungal action, and synergistic effects, microdilution testing in broth was used. The structures of the synthesized products were characterized with FTIR spectroscopy, 1 H-NMR, 13 C-NMR, and HRMS. Derivative 6 presented the best antifungal profile, suggesting that the presence of the butyl substituent potentiates its biological response (MIC = 626.62 μM), followed by compound 4 (672.83 μM) and compound 3 (726.36 μM). All three compounds were fungicidal, with MFC/MIC ≤ 4. For mechanism of action, compounds 4 and 6 directly interacted with the ergosterol present in the fungal plasmatic membrane and with the cell wall. Compound 18 presented the best antibacterial profile (MIC = 458.15 μM), followed by compound 9 (550.96 μM) and compound 6 (626.62 μM), which suggested that the presence of an isopropyl group is important for antibacterial activity. The compounds were bactericidal, with MBC/MIC ≤ 4. Association tests were performed using the Checkerboard method to evaluate potential synergistic effects with nystatin (fungi) and amoxicillin (bacteria). Derivatives 6 and 18 presented additive effects. Molecular docking simulations suggested that the most likely targets of compound 6 in C. albicans were caHOS2 and caRPD3, while the most likely target of compound 18 in S. aureus was saFABH. Our results suggest that these compounds could be used as prototypes to obtain new antimicrobial drugs.
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Iqbal Z, Sadiq M, Sadiq S, Saeed K. Selective hydrogenation of cinnamaldehyde to cinnamyl alcohol over palladium/zirconia in microwave protocol. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wu J, Gao Y, Guo T, Luo N, Li G, An T. Insights into the Photodegradation of the Contact Allergen Fragrance Cinnamyl Alcohol: Kinetics, Mechanism, and Toxicity. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:2705-2714. [PMID: 34255880 DOI: 10.1002/etc.5156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/13/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
Fragrances can cause general health issues, and special concerns exist surrounding the issue of skin safety. Cinnamyl alcohol (CAL) is a frequent fragrance contact allergen that has various toxic effects on indiscriminate animals. In the present study, the photodegradation transformation mechanism of CAL and toxicity evolution during this process were examined. The results showed that CAL (50 μM) can be completely degraded after 90-min ultraviolet (UV) irradiation with a degradation rate of 0.086 min-1 . Increased toxicity on bioluminescent bacteria was observed during this process, with lethality increasing from 10.6% (0 min) to 50.2% (90 min) under UV light irradiation. Further, the photodegradation mechanisms of CAL were explored to find the reason behind the increased toxicity observed. Laser flash photolysis and quenching experiments showed that O2•- , 1 O2 , and • OH were mainly responsible for CAL photodegradation, together with 3 CAL* and eaq- . The 5 main photodegradation products were cinnamyl aldehyde, benzaldehyde, benzenepropanal, cinnamic acid, and toluene, as identified using gas chromatography-mass spectrometry and liquid chromatography-quadrupole-time-of-flight-mass spectrometry. Once exposed to air, CAL was found to be easily oxidized to cinnamyl aldehyde and subsequently to cinnamic acid by O2•- - or 1 O2 -mediated pathways, leading to increased toxicity. Benzaldehyde exhibited bioreactive toxicity, increasing the toxicity through • OH-mediated pathways. Theoretical prediction of skin irritation indicated that cinnamyl aldehyde (0.83), benzenepropanal (0.69), cinnamyl aldehyde (0.69), and benzaldehyde (0.70) were higher than CAL (0.63), which may cause a profound impact on an individual's health and well-being. Overall, the present study advances the understanding of the photodegradation processes and health impacts of fragrance ingredients. Environ Toxicol Chem 2021;40:2705-2714. © 2021 SETAC.
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Affiliation(s)
- Junji Wu
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China
| | - Yanpeng Gao
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, China
| | - Teng Guo
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China
| | - Na Luo
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China
| | - Guiying Li
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, China
| | - Taicheng An
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, China
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Kholkina E, Kumar N, Eränen K, Russo V, Rahkila J, Peurla M, Wärnå J, Lehtonen J, Murzin DY. Carboxymethylation of cinnamylalcohol with dimethyl carbonate over the slag-based catalysts. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-02021-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe carboxymethylation of cinnamylalcohol with dimethyl carbonate was performed using low-cost catalysts obtained from desulfurization slag. Processing of steel slag performed by different techniques was resulted in a wide range of the catalysts with different morphological and structural properties. Catalytic evaluation of the slag catalysts illustrated diversity of the obtained results strongly dependent on the surface area, crystal morphology and basicity. Catalytic materials demonstrated high variability of the conversion (8–85%) exhibiting similar selectivity to the desired product – cinnamyl methyl carbonate (ca. 80%). A significant impact of ultrasonication on catalytic activity was observed. Comparison of the synthesized samples with commercial basic materials illustrated competitive ability of the slag catalysts. Based on the results of catalytic evaluation and product analysis the reaction network was proposed and verified by thermodynamic analysis. A kinetic model was developed to describe concentration dependencies in carboxymethylation.
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Lepoittevin JP, Lafforgue C. Molecular Aspects in Allergic and Irritant Contact Dermatitis. Contact Dermatitis 2021. [DOI: 10.1007/978-3-030-36335-2_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lepoittevin JP, Lafforgue C. Molecular Aspects in Allergic and Irritant Contact Dermatitis. Contact Dermatitis 2020. [DOI: 10.1007/978-3-319-72451-5_4-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhao X, Huang L, Kang L, Jetter R, Yao L, Li Y, Xiao Y, Wang D, Xiao Q, Ni Y, Guo Y. Comparative analyses of cuticular waxes on various organs of faba bean (Vicia faba L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 139:102-112. [PMID: 30884413 DOI: 10.1016/j.plaphy.2019.03.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/08/2019] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
Cuticular waxes cover the plant surface and serve as hydrophobic layer, exhibiting various wax profiles between plant species and plant organs. This paper reports comprehensive analysis of the waxes on organs exposed to air, including leaf, stem, pod pericarp, and petals (banner, wing and keel), and on seed coat enwrapped in pod pericarp of faba bean (Vicia faba). In total 7 classes of wax compounds were identified, including fatty acids, primary alcohols, alkyl esters, aldehydes, alkanes, cinnamyl alcohol esters, and alkylresorcinols. Overall, primary alcohols dominated the waxes on leaves and the seed coat enwrapped in pod pericarp, alkanes accumulated largely in stem and petals, whereas alkylresorcinols were observed in leaf, stem and pod pericarp. Organs exposed to air had higher coverage (>1.2 μg/cm2) than those on seed coat (<0.8 μg/cm2), and keel having the highest wax coverage. Meanwhile, the wax coverage on seed coat reduced during the seed development. The variations of wax coverages, compound class distributions and chain length profiles among organs suggested that wax depositions were associated with their ecophysiological functions, and the enzymes involved in wax biosynthesis also showed organ-specific.
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Affiliation(s)
- Xiao Zhao
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China
| | - Lei Huang
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China
| | - Lin Kang
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China
| | - Reinhard Jetter
- Department of Botany, University of British Columbia, 6270 University Boulevard, Vancouver, BC V6T 1Z4, Canada
| | - Luhua Yao
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China
| | - Yang Li
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China
| | - Yu Xiao
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China
| | - Dengke Wang
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China
| | - Qianlin Xiao
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China
| | - Yu Ni
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China
| | - Yanjun Guo
- College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China.
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Panzella L, DellaGreca M, Longobardo L. A Facile Preparation of Hydroxycinnamyl Alcohols withSimultaneous Protection of Phenol Groups as Carbonate. ChemistrySelect 2018. [DOI: 10.1002/slct.201802099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lucia Panzella
- Department of Chemical Science; University of Napoli Federico II Via Cinthia 4; 80126 Napoli Italy
| | - Marina DellaGreca
- Department of Chemical Science; University of Napoli Federico II Via Cinthia 4; 80126 Napoli Italy
| | - Luigi Longobardo
- Department of Chemical Science; University of Napoli Federico II Via Cinthia 4; 80126 Napoli Italy
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Tarnowicz-Ligus S, Trzeciak AM. Heck Transformations of Biological Compounds Catalyzed by Phosphine-Free Palladium. Molecules 2018; 23:E2227. [PMID: 30200476 PMCID: PMC6225119 DOI: 10.3390/molecules23092227] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/29/2018] [Accepted: 08/29/2018] [Indexed: 11/16/2022] Open
Abstract
The development and optimization of synthetic methods leading to functionalized biologically active compounds is described. Two alternative pathways based on Heck-type reactions, employing iodobenzene or phenylboronic acid, were elaborated for the arylation of eugenol and estragole. Cinnamyl alcohol was efficiently transformed to saturated arylated aldehydes in reaction with iodobenzene using the tandem arylation/isomerization sequential process. The arylation of cinnamyl alcohol with phenylboronic acid mainly gave unsaturated alcohol, while the yield of saturated aldehyde was much lower. Catalytic reactions were carried out using simple, phosphine-free palladium precursors and water as a cosolvent, following green chemistry rules as much as possible.
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Affiliation(s)
| | - Anna M Trzeciak
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland.
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Gunia-Krzyżak A, Słoczyńska K, Popiół J, Koczurkiewicz P, Marona H, Pękala E. Cinnamic acid derivatives in cosmetics: current use and future prospects. Int J Cosmet Sci 2018; 40:356-366. [PMID: 29870052 DOI: 10.1111/ics.12471] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 06/03/2018] [Indexed: 01/11/2023]
Abstract
Cinnamic acid derivatives are widely used in cosmetics and possess various functions. This group of compounds includes both naturally occurring and synthetic substances. On the basis of the Cosmetic Ingredient Database (CosIng) and available literature, this review summarizes their functions in cosmetics, including their physicochemical and biological properties as well as reported adverse effects. A perfuming function is typical of many derivatives of cinnamaldehyde, cinnamyl alcohol, dihydrocinnamyl alcohol and cinnamic acid itself; these substances are commonly used in cosmetics all over the world. Some of them show allergic and photoallergic potential, resulting in restrictions in maximum concentrations and/or a requirement to indicate the presence of some substances in the list of ingredients when their concentrations exceed certain fixed values in a cosmetic product. Another important function of cinnamic acid derivatives in cosmetics is UV protection. Ester derivatives such as ethylhexyl methoxycinnamate (octinoxate), isoamyl p-methoxycinnamte (amiloxiate), octocrylene and cinoxate are used in cosmetics all over the world as UV filters. However, their maximum concentrations in cosmetic products are restricted due to their adverse effects, which include contact and a photocontact allergies, phototoxic contact dermatitis, contact dermatitis, estrogenic modulation and generation of reactive oxygen species. Other rarely utilized functions of cinnamic acid derivatives are as an antioxidant, in skin conditioning, hair conditioning, as a tonic and in antimicrobial activities. Moreover, some currently investigated natural and synthetic derivatives of cinnamic acid have shown skin lightening and anti-ageing properties. Some of them may become new cosmetic ingredients in the future. In particular, 4-hydroxycinnamic acid, which is currently indexed as a skin-conditioning cosmetics ingredient, has been widely tested in vitro and in vivo as a new drug candidate for the treatment of hyperpigmentation.
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Affiliation(s)
- A Gunia-Krzyżak
- Faculty of Pharmacy, Department of Bioorganic Chemistry, Chair of Organic Chemistry, Jagiellonian University Medical College, Medyczna 9, Kraków, Poland
| | - K Słoczyńska
- Faculty of Pharmacy, Department of Pharmaceutical Biochemistry, Jagiellonian University Medical College, Medyczna 9, Kraków, Poland
| | - J Popiół
- Faculty of Pharmacy, Department of Bioorganic Chemistry, Chair of Organic Chemistry, Jagiellonian University Medical College, Medyczna 9, Kraków, Poland
| | - P Koczurkiewicz
- Faculty of Pharmacy, Department of Pharmaceutical Biochemistry, Jagiellonian University Medical College, Medyczna 9, Kraków, Poland
| | - H Marona
- Faculty of Pharmacy, Department of Bioorganic Chemistry, Chair of Organic Chemistry, Jagiellonian University Medical College, Medyczna 9, Kraków, Poland
| | - E Pękala
- Faculty of Pharmacy, Department of Pharmaceutical Biochemistry, Jagiellonian University Medical College, Medyczna 9, Kraków, Poland
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Hwang DI, Won KJ, Kim DY, Kim B, Lee HM. Cinnamyl Alcohol, the Bioactive Component of Chestnut Flower Absolute, Inhibits Adipocyte Differentiation in 3T3-L1 Cells by Downregulating Adipogenic Transcription Factors. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:833-846. [PMID: 28490236 DOI: 10.1142/s0192415x17500446] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The extract of chestnut (Castanea crenata var. dulcis) flower (CCDF) has antioxidant and antimelanogenic properties, but its anti-obesity properties have not been previously examined. In this study, we tested the effect of CCDF absolute on adipocyte differentiation by using 3T3-L1 cells and determining the bioactive component of CCDF absolute in 3T3-L1 cell differentiation. CCDF absolute (0.1-100[Formula: see text][Formula: see text]g/mL) did not change 3T3-L1 cell viability. At 50[Formula: see text][Formula: see text]g/mL and 100[Formula: see text][Formula: see text]g/mL, the absolute significantly reduced the accumulation of lipid droplets in 3T3-L1 cells that were induced by culture in medium containing 3-isobutyl-1-methylxanthine/dexamethasone/insulin (MDI). GC/MS analysis showed that CCDF absolute contains 10 compounds. Among these compounds, cinnamyl alcohol (3-phenyl-2-propene-1-ol) dose-dependently inhibited the increased accumulation of lipid droplets in MDI-contained medium-cultured 3T3-L1 cells at a concentration range of 0.1[Formula: see text][Formula: see text]g/mL to 10[Formula: see text][Formula: see text]g/mL that did not cause cytotoxicity in 3T3-L1 cells. The inhibitory effect was significant at 5[Formula: see text][Formula: see text]g/mL ([Formula: see text] of response in MDI alone-treated state, [Formula: see text]) and 10[Formula: see text][Formula: see text]g/mL ([Formula: see text] of response in MDI alone-treated state, [Formula: see text]). Moreover, the enhanced expression of obesity-related proteins (PPAR[Formula: see text], C/EBP[Formula: see text], SREBP-1c, and FAS) in MDI medium-cultivated 3T3-L1 cells was significantly attenuated by the addition of cinnamyl alcohol at 5[Formula: see text][Formula: see text]g/mL and 10[Formula: see text][Formula: see text]g/mL. These findings demonstrate that cinnamyl alcohol suppresses 3T3-L1 cell differentiation by inhibiting anti-adipogenesis-related proteins, and it may be a main bioactive component of CCDF absolute, exerting antidifferentiation action in 3T3-L1 cells. Therefore, cinnamyl alcohol, as well as CCDF absolute, may be potential candidates for the prevention or treatment of obesity.
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Affiliation(s)
- Dae Il Hwang
- * Department of Cosmetic Science, College of Life and Health Sciences, Hoseo University, Asan 336-795, Korea
| | - Kyung-Jong Won
- † Department of Physiology, School of Medicine, Konkuk University, Seoul 143-701, Korea
| | - Do-Yoon Kim
- * Department of Cosmetic Science, College of Life and Health Sciences, Hoseo University, Asan 336-795, Korea
| | - Bokyung Kim
- † Department of Physiology, School of Medicine, Konkuk University, Seoul 143-701, Korea
| | - Hwan Myung Lee
- * Department of Cosmetic Science, College of Life and Health Sciences, Hoseo University, Asan 336-795, Korea
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18
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Zhou W, Bi H, Zhuang Y, He Q, Yin H, Liu T, Ma Y. Production of Cinnamyl Alcohol Glucoside from Glucose in Escherichia coli. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:2129-2135. [PMID: 28229589 DOI: 10.1021/acs.jafc.7b00076] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Rosin, a cinnamyl alcohol glucoside, is one of the important ingredients in Rhodiola rosea, which is a valuable medicinal herb used for centuries. Rosin displayed multiple biological activities. The traditional method for producing rosin and derivatives is direct extraction from R. rosea, which suffers from limited availability of natural resources and complicated purification procedure. This work achieved de novo biosynthesis of rosin in Escherichia coli. First, a biosynthetic pathway of aglycon cinnamyl alcohol from phenylalanine was constructed. Subsequently, the UGT genes from Rhodiola sachalinensis (UGT73B6) or Arabidopsis thaliana (UGT73C5) were introduced into the above recombinant E. coli strain to produce rosin. Then the phenylalanine metabolic pathway of E. coli was optimized by genetic manipulation, and the production of rosin by the engineered E. coli reached 258.5 ± 8.8 mg/L. This study lays a significant foundation for microbial production of rosin and its derivatives using glucose as the renewable carbon source.
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Affiliation(s)
- Wei Zhou
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
- Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
- University of Chinese Academy of Sciences , Beijing, China
| | - Huiping Bi
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
- Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
| | - Yibin Zhuang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
- Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
| | - Qinglin He
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
- Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
| | - Hua Yin
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
- Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
| | - Tao Liu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
- Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
| | - Yanhe Ma
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences , Tianjin 300308, China
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Moss E, Debeuckelaere C, Berl V, Elbayed K, Moussallieh FM, Namer IJ, Lepoittevin JP. In Situ Metabolism of Cinnamyl Alcohol in Reconstructed Human Epidermis: New Insights into the Activation of This Fragrance Skin Sensitizer. Chem Res Toxicol 2016; 29:1172-8. [PMID: 27281158 DOI: 10.1021/acs.chemrestox.6b00148] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Chemical modification of epidermal proteins by skin sensitizers is the molecular event which initiates the induction of contact allergy. However, not all chemical skin allergens react directly as haptens with epidermal proteins but need either a chemical (prehaptens) or metabolic (prohaptens) activation step to become reactive. Cinnamyl alcohol has been considered a model prohapten, as this skin sensitizer has no intrinsic reactivity. Therefore, the prevailing theory is that cinnamyl alcohol is enzymatically oxidized into the protein-reactive cinnamaldehyde, which is the sensitizing agent. Knowing that reconstructed human epidermis (RHE) models have been demonstrated to be quite similar to the normal human epidermis in terms of metabolic enzymes, use of RHE may be useful to investigate the in situ metabolism/activation of cinnamyl alcohol, particularly when coupled with high-resolution magic angle spinning nuclear magnetic resonance. Incubation of carbon-13 substituted cinnamyl derivatives with RHE did not result in the formation of cinnamaldehyde. The metabolites formed suggest the formation of an epoxy-alcohol and an allylic sulfate as potential electrophiles. These data suggest that cinnamyl alcohol is inducing skin sensitization through a route independent of the one involving cinnamaldehyde and should therefore be considered as a skin sensitizer on its own.
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Affiliation(s)
- Eric Moss
- Institute of Chemistry, CNRS UMR 7177 and University of Strasbourg , 4 Rue Blaise Pascal, 67081 Strasbourg, France
| | - Camille Debeuckelaere
- Institute of Chemistry, CNRS UMR 7177 and University of Strasbourg , 4 Rue Blaise Pascal, 67081 Strasbourg, France
| | - Valérie Berl
- Institute of Chemistry, CNRS UMR 7177 and University of Strasbourg , 4 Rue Blaise Pascal, 67081 Strasbourg, France
| | - Karim Elbayed
- Institute of Chemistry, CNRS UMR 7177 and University of Strasbourg , 4 Rue Blaise Pascal, 67081 Strasbourg, France.,Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), CNRS UMR 7357 and University of Strasbourg , 4 Rue Blaise Pascal, 67081 Strasbourg, France
| | - François-Marie Moussallieh
- Institute of Chemistry, CNRS UMR 7177 and University of Strasbourg , 4 Rue Blaise Pascal, 67081 Strasbourg, France.,Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), CNRS UMR 7357 and University of Strasbourg , 4 Rue Blaise Pascal, 67081 Strasbourg, France
| | - Izzie-Jacques Namer
- Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), CNRS UMR 7357 and University of Strasbourg , 4 Rue Blaise Pascal, 67081 Strasbourg, France
| | - J-P Lepoittevin
- Institute of Chemistry, CNRS UMR 7177 and University of Strasbourg , 4 Rue Blaise Pascal, 67081 Strasbourg, France
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20
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Durndell LJ, Wilson K, Lee AF. Platinum-catalysed cinnamaldehyde hydrogenation in continuous flow. RSC Adv 2015. [DOI: 10.1039/c5ra14984c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Continuous flow operation provides significantly enhanced activity, selectivity and lifetime for the Pt catalysed selective hydrogenation of cinnamaldehyde to cinnamyl alcohol.
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Affiliation(s)
- Lee J. Durndell
- European Bioenergy Research Institute
- Aston University
- Birmingham B4 7ET
- UK
| | - Karen Wilson
- European Bioenergy Research Institute
- Aston University
- Birmingham B4 7ET
- UK
| | - Adam F. Lee
- European Bioenergy Research Institute
- Aston University
- Birmingham B4 7ET
- UK
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21
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Niklasson IB, Ponting DJ, Luthman K, Karlberg AT. Bioactivation of Cinnamic Alcohol Forms Several Strong Skin Sensitizers. Chem Res Toxicol 2014; 27:568-75. [DOI: 10.1021/tx400428f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Ida B. Niklasson
- Department
of Chemistry and Molecular Biology, Dermatochemistry and Skin Allergy, University of Gothenburg, SE-412 96 Gothenburg, Sweden
| | - David J. Ponting
- Department
of Chemistry and Molecular Biology, Dermatochemistry and Skin Allergy, University of Gothenburg, SE-412 96 Gothenburg, Sweden
| | - Kristina Luthman
- Department
of Chemistry and Molecular Biology, Medicinal Chemistry, University of Gothenburg, SE-412 96 Gothenburg, Sweden
| | - Ann-Therese Karlberg
- Department
of Chemistry and Molecular Biology, Dermatochemistry and Skin Allergy, University of Gothenburg, SE-412 96 Gothenburg, Sweden
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22
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Kang YH, Yang IJ, Morgan KG, Shin HM. Cinnamyl alcohol attenuates vasoconstriction by activation of K⁺ channels via NO-cGMP-protein kinase G pathway and inhibition of Rho-kinase. Exp Mol Med 2013. [PMID: 23178275 PMCID: PMC3538982 DOI: 10.3858/emm.2012.44.12.083] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Cinnamyl alcohol (CAL) is known as an antipyretic, and a recent study showed its vasodilatory activity without explaining the mechanism. Here we demonstrate the vasodilatory effect and the mechanism of action of CAL in rat thoracic aorta. The change of tension in aortic strips treated with CAL was measured in an organ bath system. In addition, vascular strips or human umbilical vein endothelial cells (HUVECs) were used for biochemical experiments such as Western blot and nitrite and cyclic guanosine monophosphate (cGMP) measurements. CAL attenuated the vasoconstriction of phenylephrine (PE, 1 µM)-precontracted aortic strips in an endothelium-dependent manner. CAL-induced vasorelaxation was inhibited by pretreatment with NG-nitro-L-arginine methyl ester (L-NAME; 10-4 M), methylene blue (MB; 10-5 M) and 1 H-[1,2,4]-oxadiazolole-[4,3-a] quinoxalin-10one, (ODQ; 10-6 or 10-7 M) in the endothelium-intact aortic strips. Atrial natriuretic peptide (ANP; 10-8 or 10-9 M) did not affect the vasodilatory effect of CAL. The phosphorylation of endothelial nitric oxide synthase (eNOS) and generation of nitric oxide (NO) were stimulated by CAL treatment in HUVECs and inhibited by treatment with L-NAME. In addition, cGMP and PKG1 activation in aortic strips treated with CAL were also significantly inhibited by L-NAME. Furthermore, CAL relaxed Rho-kinase activator calpeptin-precontracted aortic strips, and the vasodilatory effect of CAL was inhibited by the ATP-sensitive K+ channel inhibitor glibenclamide (Gli; 10-5 M) and the voltage-dependent K+ channel inhibitor 4-aminopyridine (4-AP; 2 × 10-4 M). These results suggest that CAL induces vasorelaxation by activating K+ channels via the NO-cGMP-PKG pathway and the inhibition of Rho-kinase.
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Affiliation(s)
- Yun Hwan Kang
- Department of Physiology College of Oriental Medicine Dongguk University Gyeongju 780-714, Korea
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23
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Niklasson IB, Delaine T, Islam MN, Karlsson R, Luthman K, Karlberg AT. Cinnamyl alcohol oxidizes rapidly upon air exposure. Contact Dermatitis 2013; 68:129-38. [DOI: 10.1111/cod.12009] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ng LT, Wu SJ. Antiproliferative Activity of Cinnamomum cassia Constituents and Effects of Pifithrin-Alpha on Their Apoptotic Signaling Pathways in Hep G2 Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2011; 2011:492148. [PMID: 20038571 PMCID: PMC3135661 DOI: 10.1093/ecam/nep220] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Accepted: 11/25/2009] [Indexed: 12/14/2022]
Abstract
Cinnamaldehyde (Cin), cinnamic acid (Ca) and cinnamyl alcohol (Cal), major constituents of Cinnamomum cassia, have been shown to possess antioxidant, anti-inflammatory, anticancer and other activities. In this study, our aim was to evaluate the antiproliferative activity of these compounds in human hepatoma Hep G2 cells and examine the effects of pifithrin-alpha (PFTα; a specific p53 inhibitor) on their apoptotic signaling transduction mechanism. The antiproliferative activity was measured by XTT assay. Expression of apoptosis-related proteins was detected by western blotting. Results showed that at a concentration of 30 μM, the order of antiproliferative activity in Hep G2 cells was Cin > Ca > Cal. Cin (IC(50) 9.76 ± 0.67 μM) demonstrated an antiproliferative potency as good as 5-fluorouracil (an anti-cancer drug; IC(50) 9.57 ± 0.61 μM). Further studies on apoptotic mechanisms of Cin showed that it downregulated the expression of Bcl-(XL), upregulated CD95 (APO-1), p53 and Bax proteins, as well as cleaving the poly (ADP-ribose) polymerase (PARP) in a time-dependent pattern. PFTα pre-incubation significantly diminished the effect of Cin-induced apoptosis. It markedly upregulated the anti-apoptotic (Bcl-(XL)) expression and downregulated the pro-apoptotic (Bax) expression, as well as effectively blocking the CD95 (APO-1) and p53 expression, and PARP cleavage in Cin-treated cells. This study indicates that Cin was the most potent antiproliferative constituent of C. cassia, and its apoptotic mechanism in Hep G2 cells could be mediated through the p53 induction and CD95 (APO-1) signaling pathways.
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Affiliation(s)
- Lean-Teik Ng
- Department of Agricultural Chemistry, National Taiwan University, No.1, Roosevelt Road Section 4, Taipei 106, Taiwan
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25
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Villa C, Trucchi B, Gambaro R, Baldassari S. Green procedure for the preparation of scented alcohols from carbonyl compounds. Int J Cosmet Sci 2008; 30:139-44. [DOI: 10.1111/j.1468-2494.2008.00431.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Goossens A, Huygens S, Stoskute L, Lepoittevin JP. Primary sensitization to cinnamyl chloride in an operator of a pharmaceutical company. Contact Dermatitis 2007; 55:364-5. [PMID: 17101013 DOI: 10.1111/j.1600-0536.2006.00935.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A Goossens
- Department of Dermatology, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium.
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