Ethyl p-methoxycinnamate
(Synonyms: 对甲氧基肉桂酸乙酯) 目录号 : GC43635A natural product with diverse actions
Cas No.:24393-56-4
Sample solution is provided at 25 µL, 10mM.
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- Purity: >97.00%
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Ethyl p-methoxycinnamate (EPMC) is a natural product found in K. galanga and C. zedoaria extracts with anti-inflammatory, antiangiogenic, antifungal, larvicidal, and analgesic activities. It inhibits COX-1 and COX-2 in vitro (IC50s = 1.12 and 0.83 μM, respectively) and reduces IL-1 and TNF-α production in vivo. EPMC inhibits granuloma tissue formation and acts as an analgesic, delaying tail flick time, in a dose-dependent manner in rats. It inhibits blood vessel growth in rat aortic explants (IC50 = 91.9 μg/ml). EPMC (T. rubrum, A. niger, S. cerevisiae, and E. floccosum and is larvicidal (LC50 = 53.64 ppm) against Ae. aegypti.
Cas No. | 24393-56-4 | SDF | |
别名 | 对甲氧基肉桂酸乙酯 | ||
Canonical SMILES | O=C(OCC)/C=C/C1=CC=C(OC)C=C1 | ||
分子式 | C12H14O3 | 分子量 | 206.2 |
溶解度 | DMF: 30 mg/ml,DMSO: 30 mg/ml,Ethanol: 10 mg/ml | 储存条件 | Store at -20°C |
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1 mg | 5 mg | 10 mg | |
1 mM | 4.8497 mL | 24.2483 mL | 48.4966 mL |
5 mM | 0.9699 mL | 4.8497 mL | 9.6993 mL |
10 mM | 0.485 mL | 2.4248 mL | 4.8497 mL |
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Ethyl p-methoxycinnamate: An Active Anti-Metastasis Agent and Chemosensitizer Targeting NFκB from Kaempferia galanga for Melanoma Cells
Life (Basel) 2022 Feb 24;12(3):337.PMID:35330088DOI:10.3390/life12030337.
The most common type of skin cancer is melanoma. While significant advances in chemotherapy have occurred in a few instances, only marginal progress has been made in treating metastatic melanoma. Natural medicine has traditionally been used to treat various illnesses, including cancer. The purpose of this study was to identify the active compound in Kaempferia galanga, which could be used to treat melanoma as an anti-metastasis and chemosensitizer agent. The active compound in K. galanga was isolated and identified using chromatography and spectroscopy techniques, and given six compounds. Inhibitory activity on NFκB activation and cell viability was determined using reporter assay methods. Among the isolated compounds, Ethyl p-methoxycinnamate (EPMC) demonstrated potent NFκB inhibitory activity against melanoma cell B16F10- NFκB Luc2 with an IC50 of 88.7 μM. Further investigation was conducted by evaluating the anti-metastasis effect of EPMC in vitro by using wound-healing assays, invasion tests, and molecular mechanism assays using Western blotting. NFκB has been implicated in tumorigenesis through the PI3K/Akt/NFκB pathway. The results of this study indicated that EPMCs act as inhibitors of p38 and thereby Akt phosphorylation inhibitors at serine 473, inhibiting NFκB-dependent transcription. Further analysis with paclitaxel demonstrated that the combinations could sensitize to apoptosis in response to well-known chemotherapy agents. Additional studies were conducted using the human melanoma cancer cell line SK-Mel 28. Along with the induction of apoptosis, we observed an increase in p-γH2AX expression (a molecular marker for double strand breaks in DNA damage) in response to treatment with paclitaxel and EPMC. The result showed EPMC to be a potential, viable adjuvant for improving the clinical efficacy of anti-metastatic and cancer chemotherapy.
Hypopigmentary effects of Ethyl p-methoxycinnamate isolated from Kaempferia galanga
Phytother Res 2014 Feb;28(2):274-9.PMID:23610003DOI:10.1002/ptr.4995.
We isolated crystals from the chloroform fraction of an ethanol extract of Kaempferia galanga and identified it as Ethyl p-methoxycinnamate through nuclear magnetic resonance analysis. In the present study, we found that Ethyl p-methoxycinnamate significantly decreased melanin synthesis in B16F10 murine melanoma cells stimulated with α-melanocyte stimulating hormone (α-MSH). In a cell-free system, however, Ethyl p-methoxycinnamate did not directly inhibit tyrosinase, the rate-limiting enzyme of melanogenesis. Instead, it inhibited tyrosinase activity in B16F10 cells in a dose-dependent manner. Furthermore, Western blot analysis showed that Ethyl p-methoxycinnamate decreased microphthalmia-associated transcription factor and tyrosinase levels in α-MSH-stimulated B16F10 cells. These results indicate that the pigment-inhibitory effect of Ethyl p-methoxycinnamate results from downregulation of tyrosinase. Ethyl p-methoxycinnamate isolated from K. galanga could be developed as a skin whitening agent to treat hyperpigmentary disorders.
Standardization of Kaempferia galanga L. rhizome and vasorelaxation effect of its key metabolite Ethyl p-methoxycinnamate
J Ethnopharmacol 2021 May 10;271:113911.PMID:33571614DOI:10.1016/j.jep.2021.113911.
Ethnopharmacological relevance: Kaempferia galanga L. rhizome (KGR) is part of more than sixty-one Ayurvedic formulations and commonly known as 'Chandramula'. KGR is widely used in traditional Indian medicines to treat fever (jwar), rheumatism (Amavata), respiratory (Shwasa), hypertension (Vyanabala vaishamya) and cardiovascular disorders (Vyanavayu Dushtijanya Hrudrog). Although ethnomedicinal properties have extensively been demonstrated in traditional medicines of south-east countries i.e. China, India, Indonesia, and Malaysia, the chemico-biological validation are still lacking. Aim of the study: Chemico-biological standardization with respect to its vasorelaxation potential is the main objective of the present study. To investigate the vasorelaxation potential of key phytochemical of KGR, i.e., ethyl-p-methoxycinnamate (EPMC) and to study it's the mechanism of action. Materials and methods: A HPLC method was developed and validated for the quality assessment of KGR using its two major phytochemicals i.e. ethyl-p-methoxycinnamate (EPMC) and ethyl cinnamate (EC) in KGR. The vasorelaxation effect of major phytochemicals of KGR was evaluated on the main mesenteric arteries isolated from male Wistar rats. Specific BKca channel blocker tetraethylammonium (TEA), receptor antagonist, nitric oxide scavenging capacity, and antioxidant potential were also evaluated for its plausible mechanism. Results: Present validated HPLC method facilitates simultaneous quantitation of EPMC and EC faster than classical GC techniques. EPMC has shown a dose-dependent relaxation in rat main mesenteric arteries (MMA) contracted by U46619 with an Emax of 58.68 ± 3.31%. Similarly, in endothelium-denuded MMA rings, relaxation was also observed (Emax of 61.83 ± 3.38%). Moreover, relaxation response to EPMC has strongly inhibited (Emax 14.76 ± 2.29%) when the tissue exposed to depolarizing high K+ containing buffer for the contraction. The point correlation dimension (pD2) values were also significantly decreased in high K+ treated arterial rings compared to control. Interestingly, when MMA rings incubated with a specific BKca channel blocker (TEA, 1 mM), the relaxation response to EPMC was also significantly blocked. Conclusions: The first time this study demonstrated the chemical standardization of K. galanga rhizome and EPMC is responsible for its vasorelaxation potential as demonstrated by the endothelium-independent response mediated by Ca2+ dependent potassium channels.
Supercritical carbon dioxide extraction of Ethyl p-methoxycinnamate from Kaempferia galanga L. rhizome and its apoptotic induction in human HepG2 cells
Nat Prod Res 2010 Dec;24(20):1927-32.PMID:21108119DOI:10.1080/14786419.2010.490913.
In this study, supercritical carbon dioxide extraction of Ethyl p-methoxycinnamate from Kaempferia galanga L. rhizome and its apoptotic induction in human HepG2 cells are reported for the first time. By using supercritical carbon dioxide extraction, the yield of Ethyl p-methoxycinnamate identified by gas chromatography mass spectrometry (GC-MS) was as high as 2.5% with respect to the raw materials. In the anticancer assay, it was found that Ethyl p-methoxycinnamate could inhibit the proliferation of the human hepatocellular liver carcinoma HepG2 cell line in a dose-dependent manner and induce the significant increase of the subG0 cell population. After treatment with Ethyl p-methoxycinnamate, phosphatidylserine of HepG2 cells could significantly translocate to the surface of the membrane. The increase of an early apoptotic population was observed by both annexin-fluorescein isothiocyanate (FITC) and propidium iodide (PI) staining. It was concluded that Ethyl p-methoxycinnamate not only induced cells to enter into apoptosis, but also affected the progress of the cell cycle.
Ethyl p-methoxycinnamate isolated from a traditional anti-tuberculosis medicinal herb inhibits drug resistant strains of Mycobacterium tuberculosis in vitro
Fitoterapia 2011 Jul;82(5):757-61.PMID:21459133DOI:10.1016/j.fitote.2011.03.006.
Many plants are used in Ayurveda for the treatment of tuberculosis. Our aim was to examine if these plants possess any specific molecule that inhibits Mycobacterium tuberculosis. One of them, Kaempferia galanga, yielded an anti-TB molecule, Ethyl p-methoxycinnamate (EPMC). By resazurin microtitre assay (REMA), EPMC was shown to inhibit M. tuberculosis H37Ra, H37Rv, drug susceptible and multidrug resistant (MDR) clinical isolates (MIC 0.242-0.485mM). No cross resistance was observed to any standard anti-TB drugs in the MDR strains. The compound did not inhibit any prototype bacteria tested. EPMC seems to be a potential anti-TB lead molecule.