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Kuo TT, Chang HY, Chen TY, Liu BC, Chen HY, Hsiung YC, Hsia SM, Chang CJ, Huang TC. Melissa officinalis Extract Induces Apoptosis and Inhibits Migration in Human Colorectal Cancer Cells. ACS OMEGA 2020; 5:31792-31800. [PMID: 33344833 PMCID: PMC7745433 DOI: 10.1021/acsomega.0c04489] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 11/20/2020] [Indexed: 05/04/2023]
Abstract
Colorectal cancer (CRC) is one of the most frequently diagnosed cancers worldwide. Lifestyle-related factors, such as diet, are associated with the development of CRC. Cumulating evidence indicates noticeable chemopreventive effects of phytochemicals on CRC, suggesting that drinking herbal tea potentially reduces the risk of distal colon cancer via its antiproliferative and anti-angiogenic activities. We examine the antitumor effects of nine components frequently found in herbal tea and uncover the underlying molecular mechanism. Among them, the hot water extract of Melissa officinalis (MO) exhibited the highest anticancer activity on CRC cells. We revealed that MO reduced cell proliferation, induced cell cycle arrest at the G2/M phase, triggered caspase-dependent apoptotic cell death, and inhibited cell migration ability by modulating the epithelial-mesenchymal transition in HCT116 CRC cells. To examine the metabolite composition in the MO hot water extract, we applied mass spectrometry-based analysis and identified 67 compounds. Among them, the phenolic compounds, including lignans, phenylpropanoids, and polyketides, are widely found in natural products and possess various bioactivities such as anti-inflammatory, antioxidation, and anticancer effects. The results indicate that herbal tea consumption benefits CRC prevention and management.
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Affiliation(s)
- Tzu-Ting Kuo
- Ph.D.
Program for Cancer Molecular Biology and Drug Discovery, College of
Medical Science and Technology, Taipei Medical
University and Academia Sinica, Taipei 11031, Taiwan
| | - Hsin-Yi Chang
- Graduate
Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan
- Graduate
Institute of Cancer Biology and Drug Discovery, College of Medical
Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Tai-Yuan Chen
- Department
of Food Science, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Bai-Chia Liu
- Graduate
Institute of Cancer Biology and Drug Discovery, College of Medical
Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Hsin-Yi Chen
- Ph.D.
Program for Cancer Molecular Biology and Drug Discovery, College of
Medical Science and Technology, Taipei Medical
University and Academia Sinica, Taipei 11031, Taiwan
- Graduate
Institute of Cancer Biology and Drug Discovery, College of Medical
Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Yuan-Chin Hsiung
- TMU
Core Facility Center, Taipei Medical University, Taipei 11031, Taiwan
| | - Shih-Min Hsia
- School of
Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan
| | - Chun-Ju Chang
- Department
of Food Science, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Tsui-Chin Huang
- Ph.D.
Program for Cancer Molecular Biology and Drug Discovery, College of
Medical Science and Technology, Taipei Medical
University and Academia Sinica, Taipei 11031, Taiwan
- Graduate
Institute of Cancer Biology and Drug Discovery, College of Medical
Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
- TMU
Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Cancer
Center, Wan Fang Hospital, Taipei Medical
University, Taipei 11696, Taiwan
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Khallouki F, Breuer A, Akdad M, Laassri FE, Attaleb M, Elmoualij B, Mzibri M, Benbacer L, Owen RW. Cytotoxic activity of Moroccan Melissa officinalis leaf extracts and HPLC-ESI-MS analysis of its phytoconstituents. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2020. [DOI: 10.1186/s43094-020-00037-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Abstract
Background
Melissa officinalis L. is a medicinal and aromatic plant traditionally used in Morocco to treat a weave range of illness. The aim of our study was to evaluate cytotoxic activity of Moroccan Melissa officinalis leaf extracts against three human cancer cell lines, namely, MCF7, LNCAP and PC3 and to reevaluate its phytochemicals.
Results
The dichloromethane extract was found to be the most active cytotoxic extract, decreasing cell viability in a dose-dependent manner, especially against the breast MCF7 cell line. The IC50 values for the dichloromethane extract against MCF7, LNCAP, and PC3 cell lines were 30.90, 71.21, and 173.93 μg/mL respectively whereas the corresponding IC50 values for the ethanol extract were 35.52, 136.40, and 237.82 μg/mL. An update of the chemical profiles of these organic extracts was conducted by GC-MS, HPLC, and HPLC-ESI-MS, and the quantity of total polyphenolic compounds (on a dry weight basis) was 61.84 g/kg and 2.86 g/kg in the ethanol and dichloromethane extracts, respectively. The major polyphenolic compounds identified in the ethanol extract were 3,4-dihydroxyphenyl lactic acid (I), 3,4-dihydroxybenzoic acid (II), caffeic acid (III), luteolin-7-O-glucoside (IV), rosmarinic acid glucoside (V), methyl caffeate (VI), rosmarinic acid (VII), isolithospermic acid (VIII), methyl rosmarinate (IX), lithospermic acid (X), methyl isolithospermic acid (XI), and methyl lithospermic acid (XII). Of these, 3,4-dihydroxyphenyl lactic acid (I), isolithospermic acid along with its methyl ester derivative are reported in Melissa officinalis leaves extract for the first time. In addition, o-tyrosol (XIII), methyl hydroxyphenyl acetic acid (XIV), and cis-rosmarinic acid (XV) were also detected in the DCM extracts. In the n-hexane extracts LCFA (palmitic, linolenic, linoleic, and stearic acids), sterols (campesterol, β-sitosterol, and stigmasterol), and the vitamins (α- and β-tocopherol) were detected and identified.
Conclusion
These results indicated that Melissa officinalis L extracts possess a potent cytotoxic effect against human cancer cell lines and the richness of this herb in bioactive molecules justifying its use in traditional Moroccan pharmacopeia.
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Asadipour M, Malek-Hosseini S, Amirghofran Z. Anti-leukemic activity of Satureja bachtiarica occurs by apoptosis in human cells. Biotech Histochem 2020; 95:506-513. [PMID: 32180460 DOI: 10.1080/10520295.2020.1725834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Failure of apoptosis contributes to leukemia progression. We investigated extracts of a native Iranian plant, Satureja bachtiarica, for possible anti-leukemia activity by induction of apoptosis and changes to the cell cycle. Growth inhibition caused by aqueous, butanol, dichloromethane and hexane extracts of S. bachtiarica on K562 and Jurkat leukemia cells was assessed using a colorimetric assay. Extracts were analyzed for induction of apoptosis and cell cycle arrest using flow cytometry and measurement of caspase-3 activity. Dichloromethane and hexane extracts inhibited leukemia cell proliferation in a dose-dependent manner. The IC50 values of these extracts were 22-33 µg/ml. Flow cytometric determination of annexinV/propidium iodide positive cells verified a significantly increased percentage of apoptotic cells compared to negative controls. Both 50 μg/ml dichloromethane and hexane extracts induced apoptosis in 89-97% of K562 and 94-97% of Jurkat cells 48 h after treatment. The effects of extracts on the cell cycle included significantly increased numbers of K562 and Jurkat cells in the subG1 phase and decreased numbers of cells in the G1, S and G2/M phases. After 24 h, we found increased levels of caspase-3 activation in cells treated with 25 μg/ml dichloromethane and hexane extracts compared to untreated cells. Our findings indicate the anti-leukemic effects of dichloromethane and hexane extracts of S. bachtiarica due to induction of apoptosis and inhibition of cell cycle progression.
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Affiliation(s)
- Morvarid Asadipour
- Immunology Department, Shiraz University of Medical Sciences , Shiraz, Iran
| | | | - Zahra Amirghofran
- Immunology Department, Shiraz University of Medical Sciences , Shiraz, Iran.,Autoimmune Diseases Research Center and Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences , Shiraz, Iran
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Amirghofran Z, Shekofteh N, Ghafourian M, Khosravi N, Kalantar K, Malek-Hosseini S. Tumor Cell Death via Apoptosis and Improvement of Activated Lymphocyte Cytokine Secretion by Extracts from Euphorbia Hebecarpa and Euphorbia Petiolata. Asian Pac J Cancer Prev 2019; 20:1979-1988. [PMID: 31350954 PMCID: PMC6745218 DOI: 10.31557/apjcp.2019.20.7.1979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 07/22/2019] [Indexed: 11/25/2022] Open
Abstract
Background: Immunomodulatory materials from natural herbs and the characterization of their immune enhancement effects may have tremendous potential as cancer treatment. The aim of the present study was to investigate the apoptosis-inducing activities of Euphorbia hebecarpa Boiss and Euphorbia petiolata Banks & Sol. plant extracts and their effects on cytokine secretion by lymphocytes. Materials and Methods: We assessed the apoptosis-inducing effect of the plants’ hexane extracts on previously determined sensitive cell lines (HeLa for E. hebecarpa and K562 for E. petiolata) by flow cytometry and measurement of caspase 3 activation. The apoptosis-related gene expressions were examined by real-time PCR. The effects of the extracts on lymphocyte proliferation and cytokine secretion were examined. Results: Flow cytometry analysis showed that the inhibitory effect of the extracts on tumor cell growth was due to cell apoptosis. The plant extracts at the 100 μg/ml dose induced apoptosis in HeLa (98.5 ± 0.1%) and K562 (57.7 ± 1.9%) cells. The extracts increased caspase 3 activation (≈2-fold>control). Real-time PCR showed Fas and Bax gene upregulation and Bcl-2 downregulation, which resulted in an increased Bax/Bcl-2 expression ratio. The extracts increased lymphocyte proliferation and increased levels of IFN-γ production in the presence and absence of mitogen (p < 0.05). They significantly increased IL-4 and decreased IL-10 secretion by mitogen-stimulated lymphocytes. E. hebecarpa also increased IL-17 release. Conclusion: These results have shown that both extracts possess antitumor activity by inducing apoptosis, possibly through both intrinsic and extrinsic pathways. In addition, they induced secretion of different T helper subset related cytokines that are effective in the immune response against cancer.
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Affiliation(s)
- Zahra Amirghofran
- Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran
- Autoimmune Diseases Research Center, and Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Narjes Shekofteh
- Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehri Ghafourian
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Neda Khosravi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Kurosh Kalantar
- Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran
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Anticancer potential of Ferula hezarlalehzarica Y. Ajani fraction in Raji lymphoma cell line: induction of apoptosis, cell cycle arrest, and changes in mitochondrial membrane potential. ACTA ACUST UNITED AC 2018; 26:143-154. [PMID: 30411191 PMCID: PMC6279669 DOI: 10.1007/s40199-018-0219-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 09/22/2018] [Indexed: 02/07/2023]
Abstract
Background Cancer is a major cause of mortality. The present study evaluates the antitumor effects of Ferula hezarlalehzarica Y. Ajani fractions on various cancer cell lines, including the Raji Burkitt’s lymphoma cells. Methods We evaluated the cytotoxic activity of various fractions of F. hezarlalehzarica against tumor cell lines by the MTT assay. Annexin V-PE/7-AAD and cell cycle analysis were assessed by flow cytometry. Expressions of genes associated with cell death and proliferation (Bax, Bcl-2, Fas, and c-Myc) were determined using real-time PCR. Alteration in mitochondrial membrane potential (MMP) was examined by JC-1 dye staining. Results The hexane fraction of F. hezarlalehzarica showed the highest degree of cytotoxicity against Raji cells (IC50 = 31.6 μg/ml). Flow cytometry analysis showed that 200 μg/ml of the fraction induced apoptosis in >96% of Raji cells after 24 h. In cell cycle analysis, at the same concentration, the percentage of apoptotic cells in the sub G1phase increased to 95.25 ± 1.76% at 48 h of treatment. The fraction induced cell cycle arrestat the G0/G1phase. Exposure to 100 μg/ml of the fraction after 48 h increased the percentage of G0/G1 cells (76.3 ± 6.08%) compared to the negative control (<50%). Treatment with75μg/ml of fraction reduced the expressions of Bcl-2 (0.23 ± 0.008-fold) and c-Myc (0.68 ± 0.07-fold) and increased Bax (1.75 ± 0.31-fold) and Fas (5.02 ± 0.74-fold; p < 0.01). We observed a decrease in MMP (≈0.4, p < 0.05) at ≥100 μg/ml and this effect remained almost unchanged until 48 h. Conclusions The F. hezarlalehzarica hexane fraction induced apoptosis in Raji cells by changing the expression of apoptosis-related genes, cell cycle distribution, and MMP. These data suggested a potential effectiveness of F. hezarlalehzarica for inducing cell death in lymphoma cells. ᅟ ![]()
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Javadi B. Diet Therapy for Cancer Prevention and Treatment Based on Traditional Persian Medicine. Nutr Cancer 2018. [DOI: 10.1080/01635581.2018.1446095] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Behjat Javadi
- Department of Traditional Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Apoptosis-inducing Effect of the Hexane Extracts from Three Native Iranian Euphorbia Plants. INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2017. [DOI: 10.5812/ijcm.8306] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Shakeri A, Sahebkar A, Javadi B. Melissa officinalis L. - A review of its traditional uses, phytochemistry and pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2016; 188:204-28. [PMID: 27167460 DOI: 10.1016/j.jep.2016.05.010] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 05/03/2016] [Accepted: 05/04/2016] [Indexed: 05/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Melissa officinalis L. is a medicinal plant that has long been used in different ethno-medical systems especially in the European Traditional Medicine and the Iranian Traditional Medicine for the treatment of several diseases. It is also widely used as a vegetable and to add flavor to dishes AIM OF THE REVIEW This review aimed to provide a summary on the botanical characterization, traditional uses, phytochemistry, pharmacological activities, pharmacokinetics and toxicity of M. officinalis, and discusses research gaps and future opportunities for investigations on this plant. MATERIALS AND METHODS We extensively reviewed major unpublished old texts, and published and electronic literature on traditional medicines of different regions of the world to find traditional uses of M. officinalis. Electronic databases including Web of Science, PubMed, ScienceDirect, Google Scholar and Scopus were searched to find articles (published between 1956 and 2015) on pharmacology and phytochemistry of M. officinalis. RESULTS Traditional uses of M. officinalis have been recorded mostly in European countries, Mediterranean region and Middle East countries. Phytochemical investigations revealed that this plant contains volatile compounds, triterpenoids, phenolic acids and flavonoids. Crude extracts and pure compounds isolated from M. officinalis exhibited numerous pharmacological effects, from which only anxiolytic, antiviral and antispasmodic activities of this plant as well as its effects on mood, cognition and memory have been shown in clinical trials. AChE inhibitory activity, stimulation of the acetylcholine and GABAA receptors, as well as inhibition of matrix metallo proteinase-2 are the main mechanisms proposed for the widely discussed neurological effects of this plant. CONCLUSIONS Modern pharmacological studies have now validated many traditional uses of M. officinalis. The data reviewed here revealed that M. officinalis is a potential source for the treatment of a wide range of diseases especially anxiety and some other CNS disorders, though confirmatory trials are warranted to substantiate these effects in the clinical setting. Data regarding many aspects of this plant such as mechanisms of actions, pharmacokinetics, adverse effects of the extracts, potential interactions with standard-of-care medications and active compounds is still limited which call for additional studies particularly in humans.
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Affiliation(s)
- Abolfazl Shakeri
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Metabolic Research Centre, Royal Perth Hospital, School of Medicine and Pharmacology, University of Western Australia, Perth, Australia
| | - Behjat Javadi
- Department of Traditional Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Esmaeilbeig M, Kouhpayeh SA, Amirghofran Z. An Investigation of the Growth Inhibitory Capacity of Several Medicinal Plants From Iran on Tumor Cell Lines. IRANIAN JOURNAL OF CANCER PREVENTION 2015; 8:e4032. [PMID: 26634114 PMCID: PMC4667231 DOI: 10.17795/ijcp-4032] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 09/29/2015] [Indexed: 11/25/2022]
Abstract
Background: Traditional herbal medicine is a valuable resource that provides new drugs for cancer treatment. Objectives: In this study we aim to screen and investigate the in vitro anti-tumor activities of ten species of plants commonly grown in Southern Iran. Materials and Methods: We used the MTT colorimetric assay to evaluate the cytotoxic activities of the methanol extracts of these plants on various tumor cell lines. The IC50 was calculated as a scale for this evaluation. Results: Satureja bachtiarica, Satureja hortensis, Thymus vulgaris, Thymus daenensis and Mentha lonigfolia showed the inhibitoriest effects on Jurkat cells with > 80% inhibition at 200 µg/mL. Satureja hortensis (IC50: 66.7 µg/mL) was the most effective. These plants also strongly inhibited K562 cell growth; Satureja bachtiarica (IC50: 28.3 µg/mL), Satureja hortensis (IC50: 52 µg/mL) and Thymus vulgaris (IC50: 87 µg/mL) were the most effective extracts. Cichorium intybus, Rheum ribes, Alhagi pseudalhagi and Glycyrrihza glabra also showed notable effects on the leukemia cell lines. The Raji cell line was mostly inhibited by Satureja bachtiarica and Thymus vulgaris with approximately 40% inhibition at 200µg/ml. The influence of these extracts on solid tumor cell lines was not strong. Fen cells were mostly affected by Glycyrrihza glabra (IC50: 182 µg/mL) and HeLa cells by Satureja hortensis (31.6% growth inhibitory effect at 200 µg/mL). Conclusions: Leukemic cell lines were more sensitive to the extracts than the solid tumor cell lines; Satureja hortensis, Satureja bachtiarica, Thymus vulgaris, Thymus daenensis and Mentha lonigfolia showed remarkable inhibitory potential.
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Affiliation(s)
| | - Seyed Amin Kouhpayeh
- Pharmacology Department, School of Medicine, Fasa University of Medical Sciences, Fasa, IR Iran
| | - Zahra Amirghofran
- Immunology Department, Medicinal and Natural Products Chemistry Research Center and Autoimmune Disease Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
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Weidner C, Rousseau M, Plauth A, Wowro SJ, Fischer C, Abdel-Aziz H, Sauer S. Melissa officinalis extract induces apoptosis and inhibits proliferation in colon cancer cells through formation of reactive oxygen species. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:262-70. [PMID: 25765831 DOI: 10.1016/j.phymed.2014.12.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 12/15/2014] [Accepted: 12/15/2014] [Indexed: 05/02/2023]
Abstract
PURPOSE Efficient strategies for the prevention of colon cancer are extensively being explored, including dietary intervention and the development of novel phytopharmaceuticals. Safe extracts of edible plants contain structurally diverse molecules that can effectively interfere with multi-factorial diseases such as colon cancer. In this study, we describe the antiproliferative and proapoptotic effects of ethanolic lemon balm (Melissa officinalis) leaves extract in human colon carcinoma cells. We further investigated the role of extra- and intracellular reactive oxygen species (ROS). METHODS Antitumor effects of lemon balm extract (LBE) were investigated in HT-29 and T84 human colon carcinoma cells. Inhibition of proliferation was analyzed by DNA quantification. The causal cell cycle arrest was determined by flow cytometry of propidium iodide-stained cells and by immunoblotting of cell cycle regulator proteins. To investigate apoptosis, cleavage of caspases 3 and 7 was detected by immunoblotting and fluorescence microscopy. Phosphatidylserine externalization was measured by Annexin V assays. Mechanistic insights were gained by measurement of ROS using the indicator dyes CM-H2DCFDA and Cell ROX Green. RESULTS After 3 and 4 days of treatment, LBE inhibited the proliferation of HT-29 and T84 colon carcinoma cells with an inhibitory concentration (IC50) of 346 and 120 µg/ml, respectively. Antiproliferative effects were associated with a G2/M cell cycle arrest and reduced protein expression of cyclin dependent kinases (CDK) 2, 4, 6, cyclin D3, and induced expression of cyclin-dependent kinase inhibitor 2C (p18) and 1A (p21). LBE (600 µg/ml) induced cleavage of caspases 3 and 7 and phosphatidylserine externalization. LBE-induced apoptosis was further associated with formation of ROS, whereas quenching of ROS by antioxidants completely rescued the colon carcinoma cells from LBE-induced apoptosis. CONCLUSIONS Lemon balm (Melissa officinalis) extract inhibits the proliferation of colon carcinoma cells and induces apoptosis through formation of ROS. Taken together, LBE or subfractions thereof could be used for the prevention of colon cancer.
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Affiliation(s)
- C Weidner
- Otto Warburg Laboratory, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | - M Rousseau
- Otto Warburg Laboratory, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | - A Plauth
- Otto Warburg Laboratory, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | - S J Wowro
- Otto Warburg Laboratory, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | - C Fischer
- Otto Warburg Laboratory, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | - H Abdel-Aziz
- Scientific Department, Steigerwald Arzneimittelwerk GmbH, 64295 Darmstadt, Germany
| | - S Sauer
- Otto Warburg Laboratory, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany.
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