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Wang S, He G, Liu Y, Wang Y, Ma Y, Fu C, Xu H, Hu R, Li S. A P1-like MYB transcription factor boosts biosynthesis and transport of C-glycosylated flavones in duckweed. Int J Biol Macromol 2024; 277:134138. [PMID: 39067732 DOI: 10.1016/j.ijbiomac.2024.134138] [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: 04/27/2024] [Revised: 07/21/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
C-glycosylated flavones (CGFs) are the main flavonoids in duckweed (Lemna turionifera), known for their diverse pharmacological activities and nutritional values. However, the molecular mechanisms underlying flavonoid metabolism in duckweed remain poorly understood. This study identified a P1-Like R2R3-MYB transcription factor, LtP1L, as a crucial regulator of CGF biosynthesis and transport in L. turionifera. Over-expression of LtP1L led to a six-fold increase in CGF levels, whereas the CRISPR-mediated knockdown of LtP1L caused a drastic 74.3 % decrease in CGF contents compared with the wild type. LtP1L specifically activated the expression of genes encoding key enzymes involved in the biosynthesis of CGFs, including flavanone 3'-hydroxylases (F3'H), flavanone 2-hydroxylases (F2H), and C-glycosyltransferase (CGT). Meanwhile, LtP1L activated genes associated with phenylalanine and phenylpropanoid biosynthesis pathways, such as 3-deoxy-7-phosphoheptulonate synthase (DHS), phenylalanine ammonia-lyase (PAL), cinnamate 4-hydroxylase (C4H), and 4-coumarate: CoA ligase (4CL), redirecting carbon metabolic flux towards flavonoid pathway at the early stages of phenylalanine synthesis. In addition, LtP1L directly bound to a novel AC-like cis-element in the promoter of a tonoplast-localized ATP-binding cassette (ABC) transporter LtABCC4 and activated its expression. Furthermore, the preference of LtABCC4 for isoorientin over orientin during vacuolar transport was evidenced by the significant reduction of isoorientin compared to orientin in the Ltabcc4crispr lines. Altogether, LtP1L acts as a crucial transcriptional orchestrator in coordinating the biosynthesis and intracellular transport of CGFs in duckweed.
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Affiliation(s)
- Shumin Wang
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guo He
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuchen Liu
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Yu Wang
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Yubin Ma
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Chunxiang Fu
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Hua Xu
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China.
| | - Ruibo Hu
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China.
| | - Shengjun Li
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China.
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Rajesh R U, Sangeetha D. Therapeutic potentials and targeting strategies of quercetin on cancer cells: Challenges and future prospects. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 133:155902. [PMID: 39059266 DOI: 10.1016/j.phymed.2024.155902] [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: 03/07/2024] [Revised: 07/08/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024]
Abstract
BACKGROUND Every cell in the human body is vital because it maintains equilibrium and carries out a variety of tasks, including growth and development. These activities are carried out by a set of instructions carried by many different genes and organized into DNA. It is well recognized that some lifestyle decisions, like using tobacco, alcohol, UV, or multiple sexual partners, might increase one's risk of developing cancer. The advantages of natural products for any health issue are well known, and researchers are making attempts to separate flavonoid-containing substances from plants. Various parts of plants contain a phenolic compound called flavonoid. Quercetin, which belongs to the class of compounds known as flavones with chromone skeletal structure, has anti-cancer activity. PURPOSE The study was aimed at investigating the therapeutic action of the flavonoid quercetin on various cancer cells. METHODS The phrases quercetin, anti-cancer, nanoparticles, and cell line were used to search the data using online resources such as PubMed, and Google Scholar. Several critical previous studies have been included. RESULTS Quercetin inhibits various dysregulated signaling pathways that cause cancer cells to undergo apoptosis to exercise its anticancer effects. Numerous signaling pathways are impacted by quercetin, such as the Hedgehog system, Akt, NF-κB pathway, downregulated mutant p53, JAK/STAT, G1 phase arrest, Wnt/β-Catenin, and MAPK. There are downsides to quercetin, like hydrophobicity, first-pass effect, instability in the gastrointestinal tract, etc., because of which it is not well-established in the pharmaceutical industry. The solution to these drawbacks in the future is using bio-nanomaterials like chitosan, PLGA, liposomes, and silk fibroin as carriers, which can enhance the target specificity of quercetin. The first section of this review covers the specifics of flavonoids and quercetin; the second section covers the anti-cancer activity of quercetin; and the third section explains the drawbacks and conjugation of quercetin with nanoparticles for drug delivery by overcoming quercetin's drawback. CONCLUSIONS Overall, this review presented details about quercetin, which is a plant derivative with a promising molecular mechanism of action. They inhibit cancer by various mechanisms with little or no side effects. It is anticipated that plant-based materials will become increasingly relevant in the treatment of cancer.
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Affiliation(s)
- Udaya Rajesh R
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Vellore, 632014 Tamil Nadu, India
| | - Dhanaraj Sangeetha
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Vellore, 632014 Tamil Nadu, India.
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El Hage R, Carvalho Martins R, Brendlé C, Lafon-Pham D, Sonnier R. Enhancing Insight into Photochemical Weathering of Flax and Miscanthus: Exploring Diverse Chemical Compositions and Composite Materials. Molecules 2024; 29:3945. [PMID: 39203023 PMCID: PMC11357340 DOI: 10.3390/molecules29163945] [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: 07/11/2024] [Revised: 08/16/2024] [Accepted: 08/19/2024] [Indexed: 09/03/2024] Open
Abstract
The accelerated weathering of flax and miscanthus fibers possessing distinct chemical compositions was investigated. The chosen fibers included raw, extractive-free (EF) and delignified samples (x3), alone and used as fillers in a stabilized polypropylene blue matrix (PP). Modifications in both color and the chemical composition of the fibers throughout the weathering process under ultraviolet (UV) light were meticulously tracked and analyzed by spectrophotometry and attenuated total reflectance with Fourier-transform infrared spectroscopy (ATR-FTIR). The inherent nature and composition of the selected fibers led to varied color-change tendencies. Raw and EF flax fibers exhibited lightening effects, while raw and EF miscanthus fibers demonstrated darkening effects. Extractives exhibited negligible influence on the color alteration of both flax and miscanthus fibers. This disparity between the fibers correlates with their respective lignin content and type, and the significant formation of carbonyl (C=O) groups in miscanthus. Better stability was noted for delignified flax fibers. A comparative study was achieved by weathering the PP matrix containing these various fibers. Contrary to the weathering observations on individual fibers, it was noted that composites containing raw and EF flax fibers exhibited significant color degradation. The other fiber-containing formulations showed enhanced color stability when compared to the pure PP matrix. The study highlights that the UV stability of composites depends on their thermal history. As confirmed by thermogravimetric analysis (TGA), fiber degradation during extrusion may affect UV stability, a factor that is not apparent when fibers alone are subjected to UV aging.
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Affiliation(s)
- Roland El Hage
- PCH, IMT Mines Alès, 6 Avenue de Clavières, 30100 Alès, France; (R.C.M.); (C.B.); (R.S.)
| | | | - Clément Brendlé
- PCH, IMT Mines Alès, 6 Avenue de Clavières, 30100 Alès, France; (R.C.M.); (C.B.); (R.S.)
| | - Dominique Lafon-Pham
- EuroMov Digital Health in Motion, University Montpellier, IMT Mines Ales, 6 Avenue de Clavières, CEDEX, 30319 Alès, France;
| | - Rodolphe Sonnier
- PCH, IMT Mines Alès, 6 Avenue de Clavières, 30100 Alès, France; (R.C.M.); (C.B.); (R.S.)
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Naponelli V, Rocchetti MT, Mangieri D. Apigenin: Molecular Mechanisms and Therapeutic Potential against Cancer Spreading. Int J Mol Sci 2024; 25:5569. [PMID: 38791608 PMCID: PMC11122459 DOI: 10.3390/ijms25105569] [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: 04/18/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
Due to its propensity to metastasize, cancer remains one of the leading causes of death worldwide. Thanks in part to their intrinsic low cytotoxicity, the effects of the flavonoid family in the prevention and treatment of various human cancers, both in vitro and in vivo, have received increasing attention in recent years. It is well documented that Apigenin (4',5,7-trihydroxyflavone), among other flavonoids, is able to modulate key signaling molecules involved in the initiation of cancer cell proliferation, invasion, and metastasis, including JAK/STAT, PI3K/Akt/mTOR, MAPK/ERK, NF-κB, and Wnt/β-catenin pathways, as well as the oncogenic non-coding RNA network. Based on these premises, the aim of this review is to emphasize some of the key events through which Apigenin suppresses cancer proliferation, focusing specifically on its ability to target key molecular pathways involved in angiogenesis, epithelial-to-mesenchymal transition (EMT), maintenance of cancer stem cells (CSCs), cell cycle arrest, and cancer cell death.
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Affiliation(s)
- Valeria Naponelli
- Department of Medicine and Surgery, University of Parma, Plesso Biotecnologico Integrato, Via Volturno 39, 43126 Parma, Italy
| | - Maria Teresa Rocchetti
- Department of Clinical and Experimental Medicine, University of Foggia, Via Pinto 1, 71122 Foggia, Italy;
| | - Domenica Mangieri
- Department of Clinical and Experimental Medicine, University of Foggia, Via Pinto 1, 71122 Foggia, Italy;
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Mustapha M, Mat Taib CN. Beneficial Role of Vitexin in Parkinson's Disease. Malays J Med Sci 2023; 30:8-25. [PMID: 37102042 PMCID: PMC10125247 DOI: 10.21315/mjms2023.30.2.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 11/05/2021] [Indexed: 04/28/2023] Open
Abstract
Today, Parkinson's disease (PD) is the foremost neurological disorder all across the globe. In the quest for a novel therapeutic agent for PD with a multimodal mechanism of action and relatively better safety profile, natural flavonoids are now receiving greater attention as a potential source of neuroprotection. Vitexin have been shown to exhibit diverse biological benefits in various disease conditions, including PD. It exerts its anti-oxidative property in PD patients by either directly scavenging reactive oxygen species (ROS) or by upregulating the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and enhancing the activities of antioxidant enzymes. Also, vitexin activates the ERK1/1 and phosphatidyl inositol-3 kinase/Akt (PI3K/Akt) pro-survival signalling pathway, which upregulates the release of anti-apoptotic proteins and downregulates the expression of pro-apoptotic proteins. It could be antagonistic to protein misfolding and aggregation. Studies have shown that it can also act as an inhibitor of monoamine oxidase B (MAO-B) enzyme, thereby increasing striatal dopamine levels, and hence, restoring the behavioural deficit in experimental PD models. Such promising pharmacological potential of vitexin could be a game-changer in devising novel therapeutic strategies against PD. This review discusses the chemistry, properties, sources, bioavailability and safety profile of vitexin. The possible molecular mechanisms underlying the neuroprotective action of vitexin in the pathogenesis of PD alongside its therapeutic potential is also discussed.
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Affiliation(s)
- Musa Mustapha
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
- Department of Human Anatomy, Faculty of Basic Medical Sciences, College of Medical Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Che Norma Mat Taib
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
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Mierziak J, Wojtasik W, Kulma A, Żuk M, Grajzer M, Boba A, Dymińska L, Hanuza J, Szperlik J, Szopa J. Overexpression of Bacterial Beta-Ketothiolase Improves Flax (Linum usitatissimum L.) Retting and Changes the Fibre Properties. Metabolites 2023; 13:metabo13030437. [PMID: 36984877 PMCID: PMC10052753 DOI: 10.3390/metabo13030437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/07/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023] Open
Abstract
Beta-ketothiolases are involved in the beta-oxidation of fatty acids and the metabolism of hormones, benzenoids, and hydroxybutyrate. The expression of bacterial beta-ketothiolase in flax (Linum usitatissimum L.) results in an increase in endogenous beta-ketothiolase mRNA levels and beta-hydroxybutyrate content. In the present work, the effect of overexpression of beta-ketothiolase on retting and stem and fibre composition of flax plants is presented. The content of the components was evaluated by high-performance liquid chromatography, gas chromatography–mass spectrometry, Fourier-transform infrared spectroscopy, and biochemical methods. Changes in the stem cell walls, especially in the lower lignin and pectin content, resulted in more efficient retting. The overexpression of beta-ketothiolase reduced the fatty acid and carotenoid contents in flax and affected the distribution of phenolic compounds between free and cell wall-bound components. The obtained fibres were characterized by a slightly lower content of phenolic compounds and changes in the composition of the cell wall. Based on the IR analysis, we concluded that the production of hydroxybutyrate reduced the cellulose crystallinity and led to the formation of shorter but more flexible cellulose chains, while not changing the content of the cell wall components. We speculate that the changes in chemical composition of the stems and fibres are the result of the regulatory properties of hydroxybutyrate. This provides us with a novel way to influence metabolic composition in agriculturally important crops.
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Affiliation(s)
- Justyna Mierziak
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Przybyszewskiego Str. 63, 51-148 Wroclaw, Poland
| | - Wioleta Wojtasik
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Przybyszewskiego Str. 63, 51-148 Wroclaw, Poland
- Correspondence:
| | - Anna Kulma
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Przybyszewskiego Str. 63, 51-148 Wroclaw, Poland
| | - Magdalena Żuk
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Przybyszewskiego Str. 63, 51-148 Wroclaw, Poland
| | - Magdalena Grajzer
- Department of Dietetics and Bromatology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland
| | - Aleksandra Boba
- Department of Genetics, Plant Breeding and Seed Science, Wroclaw University of Environmental and Life Sciences, Grunwaldzki Sq. 24A, 50-363 Wroclaw, Poland
| | - Lucyna Dymińska
- Department of Bioorganic Chemistry, Wroclaw University of Economics and Business, Komandorska 118/120, 53-345 Wroclaw, Poland
| | - Jerzy Hanuza
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wroclaw, Poland
| | - Jakub Szperlik
- Laboratory of Tissue Culture, Botanical Garden, Faculty of Biological Sciences, University of Wroclaw, Sienkiewicza 23, 50-525 Wroclaw, Poland
| | - Jan Szopa
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Przybyszewskiego Str. 63, 51-148 Wroclaw, Poland
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Gai F, Janiak MA, Sulewska K, Peiretti PG, Karamać M. Phenolic Compound Profile and Antioxidant Capacity of Flax ( Linum usitatissimum L.) Harvested at Different Growth Stages. Molecules 2023; 28:molecules28041807. [PMID: 36838795 PMCID: PMC9960924 DOI: 10.3390/molecules28041807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
The profile of phenolic compounds changes during the growth of a plant and this change affects its antioxidant potential. The aim of this research has been to find the growth stage of flax with the highest antioxidant capacity, and to determine the phenolic compounds responsible for such a capacity. Flax was harvested in six growth stages: from stem extension to mature seeds. The phenolic compounds were identified using LC-TOF-MS and quantified in an extract and in the fresh matter (FM) of each growth stage. The radical scavenging activity against ABTS•+ and DPPH•, the ferric-reducing antioxidant power (FRAP), and the antioxidant activity in the β-carotene-linoleic acid emulsion system were determined. Mono- and di-C-glycosyl flavones were found to be the most abundant phenolics of the aerial parts of flax, which also showed the highest content of isoorientin (210-538 µg/g FM). Coniferin, its derivative, and hydroxycinnamic acid derivatives were also detected. The plant was richer in flavone C-glycosides from stem extension to seed ripening (1105-1413 µg/g FM) than at the mature seed stage (557 µg/g FM). Most of the individual flavone C-glycoside contents in the extracts decreased when increasingly older plants were considered; however, the isoorientin content did not change significantly from the steam extension to the seed ripening stages. The antiradical activity against ABTS•+ and FRAP was higher for the aerial parts of the flax harvested at the flowering, brown capsule, and seed ripening stages, mainly due to the presence of flavone C-glycosides. The oxidation of β-carotene-linoleic acid emulsion was instead inhibited more effectively by the extracts from plants at the brown capsule and mature seed stages. Coniferin and its derivative were significantly involved in this activity. The extracts from the aerial parts of the flax harvested from flowering to seed ripening could be a valuable source of flavone C-glycosides for use as nutraceuticals and components of functional foods.
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Affiliation(s)
- Francesco Gai
- Institute of Sciences of Food Production, National Research Council, Largo Paolo Braccini 2, 10095 Grugliasco, Italy
| | - Michał A. Janiak
- Department of Chemical and Physical Properties of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Katarzyna Sulewska
- Department of Chemical and Physical Properties of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Pier Giorgio Peiretti
- Institute of Sciences of Food Production, National Research Council, Largo Paolo Braccini 2, 10095 Grugliasco, Italy
| | - Magdalena Karamać
- Department of Chemical and Physical Properties of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
- Correspondence:
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Allophylus africanus Stem Bark Extract Modulates the Mitochondrial Apoptotic Pathway in Human Stomach Cancer Cells. Life (Basel) 2023; 13:life13020406. [PMID: 36836763 PMCID: PMC9964695 DOI: 10.3390/life13020406] [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: 12/13/2022] [Revised: 01/04/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
The present work aimed to detail the mechanisms elicited by Allophylus africanus P. Beauv. stem bark extract in human stomach cancer cells and to identify the bioactives underlying the cytotoxicity. MTT reduction and LDH leakage assays allowed characterizing the cytotoxic effects in AGS cells, which were further detailed by morphological analysis using phalloidin and Hoechst 33258. Proapoptotic mechanisms were elucidated through a mitochondrial membrane potential assay and by assessing the impact upon the activity of caspase-9 and -3. The extract displayed selective cytotoxicity against AGS cells. The absence of plasma membrane permeabilization, along with apoptotic body formation, suggested that pro-apoptotic effects triggered cell death. Intrinsic apoptosis pathway activation was verified, as mitochondrial membrane potential decrease and activation of caspase-9 and -3 were observed. HPLC-DAD profiling enabled the identification of two apigenin-di-C-glycosides, vicenin-2 (1) and apigenin-6-C-hexoside-8-C-pentoside (3), as well as three mono-C-glycosides-O-glycosylated derivatives, apigenin-7-O-hexoside-8-C-hexoside (2), apigenin-8-C-(2-rhamnosyl)hexoside (4) and apigenin-6-C-(2-rhamnosyl)hexoside (5). Isovitexin-2″-O-rhamnoside (5) is the main constituent, accounting for nearly 40% of the total quantifiable flavonoid content. Our results allowed us to establish the relationship between the presence of vicenin-2 and other apigenin derivatives with the contribution to the cytotoxic effects on the presented AGS cells. Our findings attest the anticancer potential of A. africanus stem bark against gastric adenocarcinoma, calling for studies to develop herbal-based products and/or the use of apigenin derivatives in chemotherapeutic drug development.
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A Mechanism of Isoorientin-Induced Apoptosis and Migration Inhibition in Gastric Cancer AGS Cells. Pharmaceuticals (Basel) 2022; 15:ph15121541. [PMID: 36558992 PMCID: PMC9788167 DOI: 10.3390/ph15121541] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022] Open
Abstract
Isoorientin (ISO) is a flavonoid compound containing a luteolin structure, which can induce autophagy in some tumor cells. This study investigated the impact of ISO in gastric cancer AGS cells, and performed an experimental analysis on the main signaling pathways and transduction pathways it regulates. CCK-8 assay results showed that ISO reduced the survival rate of gastric cancer AGS cells, but the toxicity to normal cells was minimal. Hoechst 33342/PI double staining assay results showed that ISO induced apoptosis in gastric cancer AGS cells. Further analysis by flow cytometry and Western blot showed that ISO induced apoptosis via a mitochondria-dependent pathway. In addition, the level of reactive oxygen species (ROS) in gastric cancer AGS cells also increased with the extension of the ISO treatment time. However, cell apoptosis was inhibited by preconditioning cells with N-acetylcysteine (NAC). Moreover, ISO arrested the cell cycle at the G2/M phase by increasing intracellular ROS levels. Cell migration assay results showed that ISO inhibited cell migration by inhibiting the expression of p-AKT, p-GSK-3β, and β-catenin and was also related to the accumulation of ROS. These results suggest that ISO-induced cell apoptosis by ROS-mediated MAPK/STAT3/NF-κB signaling pathways inhibited cell migration by regulating the AKT/GSK-3β/β-catenin signaling pathway in gastric cancer AGS cells.
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Mesmar J, Abdallah R, Hamade K, Baydoun S, Al-Thani N, Shaito A, Maresca M, Badran A, Baydoun E. Ethanolic extract of Origanum syriacum L. leaves exhibits potent anti-breast cancer potential and robust antioxidant properties. Front Pharmacol 2022; 13:994025. [PMID: 36299882 PMCID: PMC9589507 DOI: 10.3389/fphar.2022.994025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/12/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Breast cancer (BC) is the second most common cancer overall. In women, BC is the most prevalent cancer and the leading cause of cancer-related mortality. Triple-negative BC (TNBC) is the most aggressive BC, being resistant to hormonal and targeted therapies. Hypothesis/Purpose: The medicinal plant Origanum syriacum L. is a shrubby plant rich in bioactive compounds and widely used in traditional medicine to treat various diseases. However, its therapeutic potential against BC remains poorly investigated. In the present study, we screened the phytochemical content of an ethanolic extract of O. syriacum (OSEE) and investigated its anticancer effects and possible underlying mechanisms of action against the aggressive and highly metastatic human TNBC cell line MDA-MB-231. Methods: MTT, trans-well migration, and scratch assays were used to assess cell viability, invasion, or migration, respectively. Antioxidant potential was evaluated in vitro using the DPPH radical-scavenging assay and levels of reactive oxygen species (ROS) were assessed in cells in culture using DHE staining. Aggregation assays were used to determine cell-cell adhesion. Flow cytometry was used to analyze cell cycle progression. Protein levels of markers of apoptosis (BCL-2, pro-Caspase3, p53), proliferation (p21, Ki67), cell migration, invasion, or adhesion (FAK, E-cadherin), angiogenesis (iNOS), and cell signaling (STAT3, p38) were determined by immunoblotting. A chorioallantoic Membrane (CAM) assay evaluated in ovo angiogenesis. Results: We demonstrated that OSEE had potent radical scavenging activity in vitro and induced the generation of ROS in MDA-MB-231 cells, especially at higher OSEE concentrations. Non-cytotoxic concentrations of OSEE attenuated cell proliferation and induced G0/G1 cell cycle arrest, which was associated with phosphorylation of p38 MAPK, an increase in the levels of tumor suppressor protein p21, and a decrease of proliferation marker protein Ki67. Additionally, only higher concentrations of OSEE were able to attenuate inhibition of proliferation induced by the ROS scavenger N-acetyl cysteine (NAC), indicating that the anti-proliferative effects of OSEE could be ROS-dependent. OSEE stimulated apoptosis and its effector Caspase-3 in MDA-MB-231 cells, in correlation with activation of the STAT3/p53 pathway. Furthermore, the extract reduced the migration and invasive properties of MDA-MB-231 cells through the deactivation of focal adhesion kinase (FAK). OSEE also reduced the production of inducible nitric oxide synthase (iNOS) and inhibited in ovo angiogenesis. Conclusion: Our findings reveal that OSEE is a rich source of phytochemicals and has robust anti-breast cancer properties that significantly attenuate the malignant phenotype of MD-MB-231 cells, suggesting that O. syriacum may not only act as a rich source of potential TNBC therapeutics but may also provide new avenues for the design of novel TNBC drugs.
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Affiliation(s)
- Joelle Mesmar
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Rola Abdallah
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Kamar Hamade
- UMRT INRE 1158 BioEcoAgro, Laboratorie BIOPI, University of Picardie Jules Verne, Amiens, France
| | - Serine Baydoun
- Breast Imaging Section, Imaging Institute, Cleveland Clinic Foundation, Cleveland, OH, United States
| | - Najlaa Al-Thani
- Research and Development Department, Barzan Holdings, Doha, Qatar
| | - Abdullah Shaito
- Biomedical Research Center, College of Medicine, and Department of Biomedical Sciences at College of Health Sciences, Qatar University, Doha, Qatar
- *Correspondence: Abdullah Shaito, ; Marc Maresca, ; Elias Baydoun,
| | - Marc Maresca
- Aix-Marseille University, CNRS, Centrale Marseille, iSm2, Marseille, France
- *Correspondence: Abdullah Shaito, ; Marc Maresca, ; Elias Baydoun,
| | - Adnan Badran
- Department of Nutrition, University of Petra, Amman, Jordan
| | - Elias Baydoun
- Department of Biology, American University of Beirut, Beirut, Lebanon
- *Correspondence: Abdullah Shaito, ; Marc Maresca, ; Elias Baydoun,
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Liu Y, Li C, Yan R, Yu R, Ji M, Chen F, Fan S, Meng J, Liu F, Zhou G, Tang X. Metabolome and transcriptome analyses of the flavonoid biosynthetic pathway for the efficient accumulation of anthocyanins and other flavonoids in a new duckweed variety (68-red). JOURNAL OF PLANT PHYSIOLOGY 2022; 275:153753. [PMID: 35760019 DOI: 10.1016/j.jplph.2022.153753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/04/2022] [Accepted: 06/08/2022] [Indexed: 05/21/2023]
Abstract
Duckweed is a kind of aquatic plant with the characteristics of high nutritional value and medicinal benefits. However, most researches focused on the natural germplasms. The underlying metabolic pathway remains to be systematically elaborated in duckweed. In our laboratory, one reddish-purple mutant with high-flavonoids was screened from a mutant library of Spirodela polyrhiza 6068, named 68-red. The content of anthocyanins and proanthocyanidins in 68-red mutant increased by 563.47% and 231.19%, respectively, compared to wild type. It is interesting that cynaroside and orientin content were significantly increased, in contrast, apigetrin and vitexin were decreased in 68-red mutant. Considering this, metabolome and transcriptome were employed to explore the flavonoids biosynthetic pathway. Here, a total of 734 metabolites were identified in the wild type and 68-red mutant. Among which, cyanidin-3-O-glucoside, cyanidin-3-O-galactoside, pelargonidin-3-O-glucoside and pelargonidin-3-O-(6″-O-malonyl)glucoside were significantly accumulated, which were positively correlated with deep reddish-purple of 68-red mutant. In addition, proanthocyanidins (B1, B2, B3, B4, C1, C2), flavonoid and its glycosides (11 luteolin and its glycosides, 14 quercetin and its glycosides, 14 kaempferol and its glycosides, 2 apigenin glycosides) were significantly accumulated, 2 apigenin glycosides were down-regulated in 68-red mutant. The transcriptome data and qRT-PCR indicated that 16 enzyme genes in flavonoids biosynthetic pathway (PAL, C4H, CHSs, F3H, ANS, ANR, F3'Hs, DFRs, LAR, GT1, BZ1) were significantly up-regulated in 68-red mutant. Correlation analysis found that three copies of F3'H gene play important roles in the synthesis of anthocyanins, luteolin and apigenin glycosides. In conclusion, the 68-red mutant is a high quality germplasm resources for food and medical industry. Metabolome and transcriptome provide new insight for exploring the enzyme genes and functional metabolites in duckweed.
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Affiliation(s)
- Yu Liu
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
| | - Chuantong Li
- College of Resources and Environment, Qingdao Agricultural University, Qingdao, China
| | - Ruiting Yan
- College of Resources and Environment, Qingdao Agricultural University, Qingdao, China
| | - Ruikang Yu
- College of Resources and Environment, Qingdao Agricultural University, Qingdao, China
| | - Meijing Ji
- College of Resources and Environment, Qingdao Agricultural University, Qingdao, China
| | - Fei Chen
- College of Resources and Environment, Qingdao Agricultural University, Qingdao, China
| | - Shusheng Fan
- College of Resources and Environment, Qingdao Agricultural University, Qingdao, China
| | - Jie Meng
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
| | - Fumei Liu
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
| | - Gongke Zhou
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong, 266109, China.
| | - Xianfeng Tang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.
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Antioxidant Activity and Inhibitory Effects of Black Rice Leaf on the Proliferation of Human Carcinoma Cells. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7270782. [PMID: 35726317 PMCID: PMC9206558 DOI: 10.1155/2022/7270782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/27/2022] [Indexed: 01/23/2023]
Abstract
The leaves of black rice, well-known as postharvest agricultural waste, contain a rich source of antioxidants with multiple benefits for human health. In the present study, the ethyl acetate fraction obtained from black rice leaf was separated into five subfractions using Sephadex LH-20 column chromatography, and their antioxidant and anticancer activities were investigated. The results revealed that among all the subfractions, subfraction 5 (Sub5) showed the highest total phenolic and flavonoid values. The antioxidant activity was also superior in Sub5 (the IC50 values are 3.23, 31.95, and 72.74 μg/mL, in the DPPH, ABTS, and reducing power assays, respectively) compared to the other subfractions. All subfractions, in a time-dependent manner, inhibited the proliferation of hepatoma (HepG2), breast (MCF-7), and colorectal (Caco-2) cancer cells, especially the Sub5. Thus, Sub5 was employed to conduct the cell cycle and cell apoptosis by flow cytometry. Sub5 significantly increased the accumulation of cells at the Sub-G1 phase in HepG2 cells (44.5%, at 48 h). Furthermore, it could trigger annexin V-detected apoptosis through mitochondrial and death receptor pathways accompanied by the suppression of PI3K/Akt and Erk signaling pathways. In addition, HPLC-DAD-MS/MS was conducted to characterize the bioactive constituents in the most potent antioxidant, cytotoxic, and apoptosis-inducing subfraction. Conclusively, Sub5 may have high potential as functional dietary supplements to inhibit the development of HepG2 liver cancer.
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Khalil HE, Ibrahim HIM, Ahmed EA, Emeka PM, Alhaider IA. Orientin, a Bio-Flavonoid from Trigonella hamosa L., Regulates COX-2/PGE-2 in A549 Cell Lines via miR-26b and miR-146a. Pharmaceuticals (Basel) 2022; 15:ph15020154. [PMID: 35215267 PMCID: PMC8876523 DOI: 10.3390/ph15020154] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/16/2022] [Accepted: 01/23/2022] [Indexed: 12/11/2022] Open
Abstract
Cancer is a severe health condition and considered one of the major healthcare issues and is in need of innovative strategy for a cure. The current study aimed to investigate the chemical profile of Trigonella hamosa L. and a potential molecular approach to explain its regulation in cancer progression through an inflammatory mediator (COX-2) in A549 non-small lung cancer cell lines via in silico, mechanistic and molecular aspects. T. hamosa was extracted and then subjected to a CCK-8 cell viability assay in different cancer cell lines including MDA-MB-231, A549 and HCT-116. Total extract was subjected to several chromatographic techniques to yield orientin (OT); the structure was elucidated by inspection of NMR spectroscopic data. To achieve anticancer effects of OT, a cell viability assay using a CCK-8 kit, immunoprecipitation by Western blot, cell migration using a wound healing assay, cell invasion using a Matrigel-Transwell assay, apoptosis by AO/EB dual staining, flow cytometric analysis and DAPI staining, a silenced COX-2 model to determine PGE-2 production and real-time PCR and Western blot of BCL-2, CYP-1A1, iNOS and COX-2 markers were carried out. The results demonstrated that OT decreased the cell proliferation and controlled cell migration and invasive properties. OT destabilized the COX-2 mRNA and downregulated its expression in A549 cell lines. Virtual binding showed interaction (binding energy −10.43) between OT and COX-2 protein compared to the selective COX-2 inhibitor celecoxib (CLX) (binding energy −9.4). The OT-CLX combination showed a superior anticancer effect. The synergistic effect of OT-CLX combination was noticed in controlling the migration and invasion of A549 cell lines. OT-CLX downregulated the expression of BCL-2, iNOS and COX-2 and activated the proapoptotic gene CYP-1A1. OT mitigated the COX-2 expression via upregulation of miR-26b and miR-146a. Interestingly, COX-2-silenced transfected A549 cells exhibited reduced expression of miR-26b and miR-146a. The findings confirmed the direct interaction of OT with COX-2 protein. PGE-2 expression was quantified in both naïve and COX-2-silenced A549 cells. OT downregulated the release of PGE-2 in both tested conditions. These results confirmed the regulatory effect of OT on A549 cell growth in a COX-2-dependent manner. OT activated apoptosis via activation of CYP-1A1 expression in an independent manner. These results revealed that the OT-CLX combination could serve as a potential synergistic treatment for effective inflammatory-mediated anticancer strategies.
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Affiliation(s)
- Hany Ezzat Khalil
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (P.M.E.); (I.A.A.)
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
- Correspondence:
| | - Hairul-Islam Mohamed Ibrahim
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.-I.M.I.); (E.A.A.)
- Department of System Biology, Pondicherry Center for Biological Science and Educational Trust, Kottakuppam 605104, India
| | - Emad A. Ahmed
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.-I.M.I.); (E.A.A.)
- Lab of Molecular Physiology, Department of Zoology, Faculty of Science, Assiut University, Assiut 71515, Egypt
| | - Promise Madu Emeka
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (P.M.E.); (I.A.A.)
| | - Ibrahim A. Alhaider
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (P.M.E.); (I.A.A.)
- Research and Development, Saudi Food and Drug Authority, Riyadh 13312, Saudi Arabia
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Komorowska D, Gajewska A, Hikisz P, Bartosz G, Rodacka A. Comparison of the Effects of Resveratrol and Its Derivatives on the Radiation Response of MCF-7 Breast Cancer Cells. Int J Mol Sci 2021; 22:ijms22179511. [PMID: 34502426 PMCID: PMC8431402 DOI: 10.3390/ijms22179511] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/27/2021] [Accepted: 08/28/2021] [Indexed: 12/28/2022] Open
Abstract
Radiotherapy is among the most important methods for breast cancer treatment. However, this method's effectiveness is limited by radioresistance. The aim of this study was to investigate whether the stilbene derivatives piceid, resveratrol, and piceatannol have a radiosensitising effect on breast cancer cells (MCF-7). The conducted research enabled us to determine which of the tested compounds has the greatest potential in sensitising cells to ionising radiation (IR). Among the stilbene derivatives, resveratrol significantly increased the effect of IR. Resveratrol and IR used in combination had a higher cytotoxic effect on MCF-7 cells than using piceatannol, piceid, or radiation alone. This was due to a significant decrease in the activity of antioxidant enzymes, which resulted in the accumulation of formed reactive oxygen species (ROS). The effect of resveratrol and IR enhanced the expression of apoptotic genes, such as Bax, p53, and caspase 8, leading to apoptosis.
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Affiliation(s)
- Dominika Komorowska
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (D.K.); (A.G.); (P.H.)
| | - Agnieszka Gajewska
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (D.K.); (A.G.); (P.H.)
| | - Paweł Hikisz
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (D.K.); (A.G.); (P.H.)
| | - Grzegorz Bartosz
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 4 Zelwerowicza St., 35-601 Rzeszow, Poland;
| | - Aleksandra Rodacka
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (D.K.); (A.G.); (P.H.)
- Correspondence: ; Fax: +48-426354473
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15
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Jamali T, Kavoosi G, Jamali Y, Mortezazadeh S, Ardestani SK. In-vitro, in-vivo, and in-silico assessment of radical scavenging and cytotoxic activities of Oliveria decumbens essential oil and its main components. Sci Rep 2021; 11:14281. [PMID: 34253776 PMCID: PMC8275595 DOI: 10.1038/s41598-021-93535-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 06/24/2021] [Indexed: 02/05/2023] Open
Abstract
We aimed to explore and compare new insights on the pharmacological potential of Oliveria decumbence essential oil (OEO) and its main components highlighting their antioxidant activity in-vitro, in-vivo, and in-silico and also cytotoxic effects of OEO against A549 lung cancer cells. At first, based on GC-MS analysis, thymol, carvacrol, p-cymene, and γ-terpinene were introduced as basic ingredients of OEO and their in-vitro antioxidant capacity was considered by standard methods. Collectively, OEO exhibited strong antioxidant properties even more than its components. In LPS-stimulated macrophages treated with OEO, the reduction of ROS (Reactive-oxygen-species) and NO (nitric-oxide) and down-regulation of iNOS (inducible nitric-oxide-synthase) and NOX (NADPH-oxidase) mRNA expression was observed and compared with that of OEO components. According to the results, OEO, thymol, and carvacrol exhibited the highest radical scavenging potency compared to p-cymene, and γ-terpinene. In-silico Molecular-Docking and Molecular-Dynamics simulation indicated that thymol and carvacrol but no p-cymene and γ-terpinene may establish coordinative bonds in iNOS active site and thereby inhibit iNOS. However, they did not show any evidence for NOX inhibition. In the following, MTT assay showed that OEO induces cytotoxicity in A549 cancer cells despite having a limited effect on L929 normal cells. Apoptotic death and its dependence on caspase-3 activity and Bax/Bcl2 ratio in OEO-treated cells were established by fluorescence microscopy, flow cytometry, colorimetric assay, and western blot analysis. Additionally, flow cytometry studies demonstrated increased levels of ROS in OEO-treated cells. Therefore, OEO, despite showing antioxidant properties, induces apoptosis in cancer cells by increasing ROS levels. Collectively, our results provided new insight into the usage of OEO and main components, thymol, and carvacrol, into the development of novel antioxidant and anti-cancer agents.
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Affiliation(s)
- Tahereh Jamali
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
- Immunoregulation Research Center, Shahed University, Tehran, Iran
| | | | - Yousef Jamali
- Biomathematics Laboratory, Department of Applied Mathematics, School of Mathematical Science, Tarbiat Modares University, Tehran, Iran
| | | | - Susan K Ardestani
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
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Nam B, Jang HJ, Han AR, Kim YR, Jin CH, Jung CH, Kang KB, Kim SH, Hong MJ, Kim JB, Ryu HW. Chemical and Biological Profiles of Dendrobium in Two Different Species, Their Hybrid, and Gamma-Irradiated Mutant Lines of the Hybrid Based on LC-QToF MS and Cytotoxicity Analysis. PLANTS 2021; 10:plants10071376. [PMID: 34371579 PMCID: PMC8309310 DOI: 10.3390/plants10071376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022]
Abstract
The Dendrobium species (Orchidaceae) has been cultivated as an ornamental plant as well as used in traditional medicines. In this study, the chemical profiles of Dendrobii Herba, used as herbal medicine, Dendrobium in two different species, their hybrid, and the gamma-irradiated mutant lines of the hybrid, were systematically investigated via ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-QToF MS). Among the numerous peaks detected, 17 peaks were unambiguously identified. Gigantol (1), (1R,2R)-1,7-hydroxy-2,8-methoxy-2,3-dihydrophenanthrene-4(1H)-one (2), tristin (3), (−)-syringaresinol (4), lusianthridin (5), 2,7-dihydroxy-phenanthrene-1,4-dione (6), densiflorol B (7), denthyrsinin (8), moscatilin (9), lusianthridin dimer (10), batatasin III (11), ephemeranthol A (12), thunalbene (13), dehydroorchinol (14), dendrobine (15), shihunine (16), and 1,5,7-trimethoxy-2-phenanthrenol (17), were detected in Dendrobii Herba, while 1, 2, and 16 were detected in D. candidum, 1, 11, and 16 in D. nobile, and 1, 2, and 16 in the hybrid, D. nobile × candidum. The methanol extract taken of them was also examined for cytotoxicity against FaDu human hypopharynx squamous carcinoma cells, where Dendrobii Herba showed the greatest cytotoxicity. In the untargeted metabolite analysis of 436 mutant lines of the hybrid, using UPLC-QToF MS and cytotoxicity measurements combined with multivariate analysis, two tentative flavonoids (M1 and M2) were evaluated as key markers among the analyzed metabolites, contributing to the distinction between active and inactive mutant lines.
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Affiliation(s)
- Bomi Nam
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
- Institute of Natural Cosmetic Industry for Namwon, Namwon-si 55801, Jeollabuk-do, Korea
| | - Hyun-Jae Jang
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Cheongju-si 28116, Chungbuk-do, Korea;
| | - Ah-Reum Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Ye-Ram Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Chang-Hyun Jin
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Chan-Hun Jung
- Jeonju AgroBio-Materials Institute, Jeonju-si 54810, Jeollabuk-do, Korea;
| | - Kyo-Bin Kang
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women’s University, Seoul 04310, Korea;
| | - Sang-Hoon Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Min-Jeong Hong
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Jin-Baek Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Hyung-Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Cheongju-si 28116, Chungbuk-do, Korea;
- Correspondence: ; Tel.: +82-43-240-6117
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Li Y, Sun Q, Li H, Yang B, Wang M. Vitexin suppresses renal cell carcinoma by regulating mTOR pathways. Transl Androl Urol 2020; 9:1700-1711. [PMID: 32944531 PMCID: PMC7475661 DOI: 10.21037/tau-20-1094] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Background Renal cell carcinoma (RCC) is one of the most common malignant tumors in the world. Vitexin (apigenin-8-C-D-glucopyranoside), a bioactive compound isolated from a variety of plants, has multiple protective effects on human health. The purpose of this study was to investigate the role of vitexin in RC and the related molecular mechanism. Methods Proliferation was tested with Cell Counting Kit-8 and Edu staining. Apoptosis was studied with flow cytometry. Immunofluorescent was applied to show LC3 spots. BALB/c nude mice bearing ACHN cells were established and immunohistochemical staining was applied to validate the in vivo effects of vitexin. All the effects and possible signaling pathways involved were validated with western blotting. Results Seventy micromole of vitexin started to show significant effect on the growth of normal renal tubular epithelial cells (HK-2), so 0, 10, 20 and 40 µM of vitexin were used in later experiments. Vitexin inhibited growth and induced apoptosis of ACHN and OS-RC-2 cells in a dose-dependent manner, and promoted excessive autophagy by reducing p62 levels and increasing Beclin1 and LC3II levels. Western blotting revealed that vitexin significantly increased the phosphorylation levels of Adenosine Monophosphate Activated Protein Kinase (AMPK) and c-Jun N-terminal kinase (JNK) in ACHN and OS-RC-2 cells, while decreasing the phosphorylation levels of phosphatidylinositol 3-kinase/activates protein kinase/mammalian target of rapamycin (PI3K/AKT/mTOR). In BALB/c nude mice bearing ACHN cells, vitexin inhibited tumor growth, reduced Ki67 and increased caspase-3 levels in the tumor tissues. Conclusions The results indicated that the tumor suppressive role of vitexin in ACHN and OS-RC-2 cells involved AMPK/mTOR, PI3K/AKT/mTOR, and JNK pathways. Therefore, vitexin may be a promising drug for the treatment of RCC.
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Affiliation(s)
- Yuhong Li
- Department of Pharmacy, The First People's Hospital of Jingmen, Jingmen, China
| | - Qinghai Sun
- Clinical Medicine Discipline, Weifang Traditional Chinese Hospital, Weifang, China
| | - Hui Li
- Department of Medicine, Jining No. 1 People's Hospital, Jining, China
| | - Bin Yang
- Department of Vascular Surgery, Jining No. 1 People's Hospital, Jining, China
| | - Meng Wang
- Department of Medicine, Jining No. 1 People's Hospital, Jining, China
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Xu WT, Shen GN, Li TZ, Zhang Y, Zhang T, Xue H, Zuo WB, Li YN, Zhang DJ, Jin CH. Isoorientin induces the apoptosis and cell cycle arrest of A549 human lung cancer cells via the ROS‑regulated MAPK, STAT3 and NF‑κB signaling pathways. Int J Oncol 2020; 57:550-561. [PMID: 32626938 DOI: 10.3892/ijo.2020.5079] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 05/05/2020] [Indexed: 12/24/2022] Open
Abstract
Isoorientin (ISO) is a naturally occurring C‑glycosyl flavone that has various pharmacological properties, such as anti‑bacterial and anti‑inflammatory effects. However, its underlying molecular mechanisms in human lung cancer cells remain unknown. In the present study, the effects of ISO on the induction of apoptosis and relative molecular mechanisms in A549 human lung cancer cells were investigated. The results of Cell Counting Kit‑8 assay (CCK‑8) indicated that ISO exerted significant cytotoxic effects on 3 lung cancer cell lines, but had no obvious side‑effects on normal cells. Moreover, flow cytometry and western blot analysis revealed that ISO induced mitochondrial‑dependent apoptosis by reducing mitochondrial membrane potential. ISO also increased the expression levels of Bax, cleaved‑caspase‑3 (cle‑cas‑3) and poly(ADP‑ribose) polymerase (PARP; cle‑PARP), and decreased the expression levels of Bcl‑2 in A549 cells. Furthermore, ISO induced G2/M cell cycle arrest by decreasing the expression levels of cyclin B1 and CDK1/2, and increasing the expression levels of p21 and p27 in A549 cells. As the duration of ISO treatment increased, intracellular reactive oxygen species (ROS) levels in A549 cells also increased. However, pre‑treatment of the cells with the ROS scavenger, N‑acetylcysteine (NAC), inhibited ISO‑induced apoptosis. In addition, ISO increased the expression levels of p‑p38, p‑JNK and IκB‑α; and decreased the expression levels of p‑extracellular signal‑regulated kinase (ERK), p‑signal transducer and activator of transcription (STAT)3, p‑nuclear factor (NF)‑κB, NF‑κB and p‑IκB; these effects were induced by mitogen‑activated protein kinase (MAPK) inhibitors and blocked by NAC. Taken together, the results of the present study indicate that ISO induces the apoptosis of A549 lung cancer cells via the ROS‑mediated MAPK/STAT3/NF‑κB signaling pathway, and thus may be a potential drug for use in the treatment of lung cancer.
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Affiliation(s)
- Wan-Ting Xu
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Gui-Nan Shen
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Tian-Zhu Li
- Molecular Medicine Research Center, School of Basic Medical Science, Chifeng University, Chifeng, Inner Mongolia Autonomous Region 024000, P.R. China
| | - Yu Zhang
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Tong Zhang
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Hui Xue
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Wen-Bo Zuo
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Yan-Nan Li
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Dong-Jie Zhang
- Department of Food Science and Engineering, College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Cheng-Hao Jin
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
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Pontarin N, Molinié R, Mathiron D, Tchoumtchoua J, Bassard S, Gagneul D, Thiombiano B, Demailly H, Fontaine JX, Guillot X, Sarazin V, Quéro A, Mesnard F. Age-Dependent Metabolic Profiles Unravel the Metabolic Relationships Within and Between Flax Leaves ( Linum usitatissimum). Metabolites 2020; 10:E218. [PMID: 32466546 PMCID: PMC7345097 DOI: 10.3390/metabo10060218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 01/12/2023] Open
Abstract
Flax for oil seed is a crop of increasing popularity, but its cultivation needs technical improvement. Important agronomic traits such as productivity and resistance to stresses are to be regarded as the result of the combined responses of individual organs and their inter-communication. Ultimately, these responses directly reflect the metabolic profile at the cellular level. Above ground, the complexity of the plant phenotype is governed by leaves at different developmental stages, and their ability to synthesise and exchange metabolites. In this study, the metabolic profile of differently-developed leaves was used firstly to discriminate flax leaf developmental stages, and secondly to analyse the allocation of the metabolites within and between leaves. For this purpose, the concentration of 52 metabolites, both primary and specialized, was followed by gas chromatography (GC-) and liquid chromatography coupled to mass spectrometry (LC-MS) in alternate pairs of flax leaves. On the basis of their metabolic content, three populations of leaves in different growth stages could be distinguished. Primary and specialized metabolites showed characteristic distribution patterns, and compounds similarly evolving with leaf age could be grouped by the aid of the Kohonen self-organising map (SOM) algorithm. Ultimately, visualisation of the correlations between metabolites via hierarchical cluster analysis (HCA) allowed the assessment of the metabolic fluxes characterising different leaf developmental stages, and the investigation of the relationships between primary and specialized metabolites.
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Affiliation(s)
- Nicole Pontarin
- UMR 1158 Transfontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Faculté de Pharmacie, 1 rue des Louvels, 80025 Amiens CEDEX, France; (N.P.); (R.M.); (J.T.); (S.B.); (J.-X.F.)
| | - Roland Molinié
- UMR 1158 Transfontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Faculté de Pharmacie, 1 rue des Louvels, 80025 Amiens CEDEX, France; (N.P.); (R.M.); (J.T.); (S.B.); (J.-X.F.)
| | | | - Job Tchoumtchoua
- UMR 1158 Transfontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Faculté de Pharmacie, 1 rue des Louvels, 80025 Amiens CEDEX, France; (N.P.); (R.M.); (J.T.); (S.B.); (J.-X.F.)
- Biomass Valorization Platform—Extraction Department, CELABOR, Avenue du Parc 38, 4650 Herve, Belgium
| | - Solène Bassard
- UMR 1158 Transfontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Faculté de Pharmacie, 1 rue des Louvels, 80025 Amiens CEDEX, France; (N.P.); (R.M.); (J.T.); (S.B.); (J.-X.F.)
| | - David Gagneul
- UMR 1158 Transfontalière BioEcoAgro, Institut Charles Viollette (ICV), Université de Lille, Cité Scientifique, 59655 Villeneuve d’Ascq, France;
| | - Benjamin Thiombiano
- Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands;
| | | | - Jean-Xavier Fontaine
- UMR 1158 Transfontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Faculté de Pharmacie, 1 rue des Louvels, 80025 Amiens CEDEX, France; (N.P.); (R.M.); (J.T.); (S.B.); (J.-X.F.)
| | - Xavier Guillot
- Laboulet Semences, 6 rue du Capitaine N’Tchorere, 80270 Airaines, France;
| | - Vivien Sarazin
- SADEF-AgroStation, 30 rue de la Station, 68700 Aspach-Le-Bas, France;
| | - Anthony Quéro
- UMR 1158 Transfontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Faculté de Pharmacie, 1 rue des Louvels, 80025 Amiens CEDEX, France; (N.P.); (R.M.); (J.T.); (S.B.); (J.-X.F.)
| | - François Mesnard
- UMR 1158 Transfontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Faculté de Pharmacie, 1 rue des Louvels, 80025 Amiens CEDEX, France; (N.P.); (R.M.); (J.T.); (S.B.); (J.-X.F.)
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20
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Absorption, metabolism, and bioactivity of vitexin: recent advances in understanding the efficacy of an important nutraceutical. Crit Rev Food Sci Nutr 2020; 61:1049-1064. [PMID: 32292045 DOI: 10.1080/10408398.2020.1753165] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
vitexin, an apigenin-8-C-glucoside, is widely present in numerous edible and medicinal plants. vitexin possesses a variety of bioactive properties, including antioxidation, anti-inflammation, anti-cancer, neuron-protection, and cardio-protection. Other beneficial health effects, such as fat reduction, glucose metabolism, and hepatoprotection, have also been reported in recent studies. This review briefly discusses the absorption and metabolism of vitexin, as well as its influence on gut microbiota. Recent advances in understanding the pharmacological and biological effects of vitexin are then reviewed. Improved knowledge of the absorption, metabolism, bioactivity, and molecular targets of vitexin is crucial for the better utilization of this emerging nutraceutical as a chemopreventive and chemotherapeutic agent.
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21
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Yang Y, Song Z, Wu W, Xu A, Lv S, Ji S. ZnO Quantum Dots Induced Oxidative Stress and Apoptosis in HeLa and HEK-293T Cell Lines. Front Pharmacol 2020; 11:131. [PMID: 32180717 PMCID: PMC7057716 DOI: 10.3389/fphar.2020.00131] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 01/30/2020] [Indexed: 12/17/2022] Open
Abstract
Zinc oxide (ZnO) quantum dot (QD) is a promising inexpensive inorganic nanomaterials, of which potential toxic effects on biological systems and human health should be evaluated before biomedical application. In this study, the cytotoxicity of ZnO QDs was assessed using HeLa cervical cancer cell and HEK-293T human embryonic kidney cell lines. Cell viability was significantly decreased by treatment with 50 µg/ml ZnO QDs after only 6 h, and the cytotoxicity of ZnO QDs was higher in HEK-293T than in HeLa cells. ZnO QDs increased the level of reactive oxygen species and decreased the mitochondria membrane potential in a dose-dependent manner. Several gene expression involved in apoptosis was regulated by ZnO QDs, including bcl-2 gene and caspase. In HeLa cells, ZnO QDs significantly increased early and late apoptosis, but only late apoptosis was affected in HEK-293T cells. These findings will be helpful for future research and application of ZnO QDs in biomedicine.
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Affiliation(s)
- Yanjie Yang
- Provincial Engineering Centre for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Zhenhua Song
- Provincial Engineering Centre for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Weixia Wu
- Provincial Engineering Centre for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Ao Xu
- Provincial Engineering Centre for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Shuangyu Lv
- Provincial Engineering Centre for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Shaoping Ji
- Provincial Engineering Centre for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng, China
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Tian F, Tong M, Li Z, Huang W, Jin Y, Cao Q, Zhou X, Tong G. The Effects of Orientin on Proliferation and Apoptosis of T24 Human Bladder Carcinoma Cells Occurs Through the Inhibition of Nuclear Factor-kappaB and the Hedgehog Signaling Pathway. Med Sci Monit 2019; 25:9547-9554. [PMID: 31837261 PMCID: PMC6929549 DOI: 10.12659/msm.919203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 08/26/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Orientin is a flavone isolated from medicinal plants used in traditional Chinese medicine (TCM), which suppresses the growth of cancer cells in vitro. The effects of orientin in bladder cancer cells remains unknown. This study aimed to investigate the effect of orientin on proliferation and apoptosis of T24 human transitional cell bladder carcinoma cells in vitro in the presence of an agonist and an inhibitor of nuclear factor-kappaB (NF-kappaB). MATERIAL AND METHODS T24 cells were cultured and divided into four study groups: an untreated control group; a group treated with 100 μM orientin; a group treated with 100 μM orientin with NF-kappaB agonist, phorbol 12-myristate 13-acetate (PMA); and a group treated with 100 μM orientin and the NF-kappaB inhibitor, IkappaBalpha. The MTT assay was performed to assess cell viability, and flow cytometry evaluated the cell cycle. The expression of proteins in the Hedgehog signaling pathway and inflammatory cytokines were determined by Western blot and enzyme-linked immunosorbent assay (ELISA). RESULTS Orientin inhibited the proliferation of T24 cells, caused cell cycle arrest, reduced cell viability, and inhibited the expression of inflammatory mediators. Treatment of T24 cells with orientin inhibited the expression of NF-kappaB and components of the Hedgehog signaling pathway, and the NF-kappaB agonist, PMA, reversed these effects. CONCLUSIONS Treatment of T24 human bladder carcinoma cells in vitro with orientin inhibited cell proliferation and promoted cell apoptosis by suppressing the Hedgehog signaling pathway and NF-kappaB.
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Affiliation(s)
- Fenghao Tian
- Jinzhou Medical University, Jinzhou, Liaoning, P.R. China
| | - Ming Tong
- Department of Urological Surgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, P.R. China
| | - Zizhi Li
- Department of Urological Surgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, P.R. China
| | - Weichao Huang
- Department of Urological Surgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, P.R. China
| | - Yanyang Jin
- Department of Urological Surgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, P.R. China
| | - Qingfei Cao
- Department of Urological Surgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, P.R. China
| | - Xiaoli Zhou
- Jinzhou Medical University, Jinzhou, Liaoning, P.R. China
| | - Guangquan Tong
- Department of Urological Surgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, P.R. China
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Thangaraj K, Balasubramanian B, Park S, Natesan K, Liu W, Manju V. Orientin Induces G0/G1 Cell Cycle Arrest and Mitochondria Mediated Intrinsic Apoptosis in Human Colorectal Carcinoma HT29 Cells. Biomolecules 2019; 9:biom9090418. [PMID: 31461995 PMCID: PMC6770649 DOI: 10.3390/biom9090418] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 08/21/2019] [Accepted: 08/26/2019] [Indexed: 02/07/2023] Open
Abstract
Colorectal carcinoma is one of the utmost diagnosed cancer with a steep increase in mortality rate. The incidence has been increasing in developing countries like India due to a westernization life style. Flavonoids have been explored widely for its various pharmacological activity including antitumor activity. Orientin, an analogue of luteolin (citrus flavonoid) isolated from rooibos and tulsi leaves is also expected to deliver significant antitumor activity similar to that of luteolin. The present study anticipates exploring the antitumor activity of orientin against colorectal carcinoma cells (HT29). Orientin exhibited remarkable cytotoxicity and antiproliferative activity against HT29 cells, which is clearly evident from tetrazolium based cytotoxicity and lactate dehydrogenase release assays. Orientin induce G0/G1 cell cycle arrest and regulates cyclin and cyclin-dependent protein kinases in order to prevent the entry of the cell cycle to the S phase. Annexin V-FITC (V-Fluorescein Isothiocyanate) dual staining reveals the apoptotic induction ability of orientin. The Bcl-2 family proteins along with the inhibitor of apoptotic proteins were regulated and the tumor suppressor p-53 expression have been decreased. In conclusion, our results proposed that orientin could be a potent chemotherapeutic agent against colorectal cancer after ascertaining their molecular mechanisms.
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Affiliation(s)
- Kalaiyarasu Thangaraj
- Department of Microbiology and Biotechnology, Bharath Institute of Higher Education and Research, Tamilnadu 600045, India
- Molecular Oncology Lab, Department of Biochemistry, Periyar University, Tamilnadu 636011, India
| | | | - Sungkwon Park
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Korea
| | - Karthi Natesan
- Molecular Oncology Lab, Department of Biochemistry, Periyar University, Tamilnadu 636011, India
- Genomic Division, National Academy of Agricultural Science, RDA, Jeollabuk 560500, Korea
| | - Wenchao Liu
- Department of Animal Science, College of Agriculture, Guangdong Ocean University, Guangdong 524088, China
| | - Vaiyapuri Manju
- Molecular Oncology Lab, Department of Biochemistry, Periyar University, Tamilnadu 636011, India.
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Transgenerational Perpetuation of CHS Gene Expression and DNA Methylation Status Induced by Short Oligodeoxynucleotides in Flax ( Linum usitatissimum). Int J Mol Sci 2019; 20:ijms20163983. [PMID: 31426274 PMCID: PMC6719086 DOI: 10.3390/ijms20163983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/06/2019] [Accepted: 08/14/2019] [Indexed: 11/16/2022] Open
Abstract
Over two decades ago, short oligodeoxynucleotides (ODNs) were proven to be an effective and rapid technique for analysis of gene function without interference in the plant genome. Our previous research has shown the successful regulation of chalcone synthase (CHS) gene expression in flax by ODN technology. The CHS gene encodes a pivotal enzyme in flavonoid biosynthesis. The manipulation of its transcript level was the result of the specific methylation status developed after treatment with ODNs. In further analysis of the application of oligodeoxynucleotides in plants, we will focus on maintaining the methylation status induced originally by ODNs homologous to the regulatory regions of the CHS gene in flax. This article reports the latest investigation applied to stabilization and inheritance of the epigenetic marks induced by plants' treatment with ODNs. The methylation status was analyzed in the particular CCGG motifs located in the CHS gene sequence. Individual plants were able to maintain alterations induced by ODNs. In order to confirm the impact of methylation marks on the nucleosome rearrangement, chromatin accessibility assay was performed. The perpetuation of targeted plant modulation induced by ODNs exhibits strong potential for improving crops and intensified application for medicine, nutrition and industry.
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25
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Gundogdu G, Dodurga Y, Elmas L, Tasci SY, Karaoglan ES. Investigation of the Anticancer Mechanism of Isoorientin Isolated from Eremurus Spectabilis Leaves via Cell Cycle Pathways in HT-29 Human Colorectal Adenocarcinoma Cells. Eurasian J Med 2018; 50:168-172. [PMID: 30515037 DOI: 10.5152/eurasianjmed.2018.17403] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective Isoorientin (ISO) is a flavonoid compound extracted from plant species. The goal of this study was to determine the potential antiproliferative effects of ISO in HT-29 human colorectal adenocarcinoma cell line in vitro, specifically on cell viability, apoptosis, and cell cycle pathways. Materials and Methods The cytotoxic effect of ISO isolated from E. spectabilis was measured using 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (XTT) assay in HT-29 cell lines. Total RNA was isolated using Tri-Reagent protocol. The effects of ISO on apoptosis-related gene were detected using real-time polymerase chain reaction (RT-PCR). The findings were analyzed using "Delta-Delta CT" ΔΔCT method and evaluated using a computer program. Volcano plot analysis was used for comparing groups and the data obtained were statistically analyzed using Student t test. Results According to XTT result analysis, the 50% inhibitory concentration (IC50) value of ISO was 125 μM at the 48th h in HT-29 cells. The RT-PCR analysis in HT-29 cells showed that Cyclin D1 (CCND1 ), Cyclin-dependent kinase 6 (CDK6), BAX, BCL-2, Checkpoint kinase 1-2 (CHEK1, CHEK2) and Excision repair cross-complementing 1 (ERCC1) expressions were reduced in ISO-treated cells compared with those in the control group of cells. P53, P21, Caspase-3 (CASP-3), Caspase-8 (CASP-8), and Caspase-9 (CASP-9) gene expressions were increased Ataxia Telengiectasia and Rad-3 related (ATR) was activated in the ISO-treated group of cells compared with those in the control group of cells (p<0.05). Conclusion ISO affected the proliferation of colorectal cancer (CRC) cells via cell cycle pathways. It also altered apoptosis gene expression. These results demonstrated that ISO can be a therapeutic agent for CRC treatment; however, more studies are needed to investigate its mechanism of actions.
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Affiliation(s)
- Gulsah Gundogdu
- Department of Physiology, Atatürk University School of Medicine, Erzurum, Turkey
| | - Yavuz Dodurga
- Department of Medical Biology, Pamukkale University School of Medicine, Denizli, Turkey
| | - Levent Elmas
- Department of Medical Biology, Pamukkale University School of Medicine, Denizli, Turkey
| | | | - Esen Sezen Karaoglan
- Department of Pharmaceutical Botany, Atatürk University School of Pharmacy, Erzurum, Turkey
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Jamali T, Kavoosi G, Safavi M, Ardestani SK. In-vitro evaluation of apoptotic effect of OEO and thymol in 2D and 3D cell cultures and the study of their interaction mode with DNA. Sci Rep 2018; 8:15787. [PMID: 30361692 PMCID: PMC6202332 DOI: 10.1038/s41598-018-34055-w] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 09/10/2018] [Indexed: 12/22/2022] Open
Abstract
Oliveria decumbens is an Iranian endemic plant used extensively in traditional medicine. Recently, some studies have been performed on biological effects of Oliveria essential oil (OEO). However, to our knowledge, the anticancer activity of OEO has not been reported. Based on our GC/MS analysis, the basic ingredients of OEO are thymol, carvacrol, p-cymene and γ-terpinene. Therefore, we used OEO and its main component, thymol, to explore their effects on cell growth inhibition and anticancer activity. Despite having a limited effect on L929 normal cells, OEO/thymol induced cytotoxicity in MDA-MB231 breast cancer monolayers (2D) and to a lesser extent in MDA-MB231 spheroids (3D). Flow cytometry, caspase-3 activity assay in treated monolayers/spheroids and also fluorescence staining and DNA fragmentation in treated monolayers demonstrated apoptotic death mode. Indeed, OEO/thymol increased the Reactive Oxygen Species (ROS) level leading to mitochondrial membrane potential (MMP, ΔΨm) loss, caspase-3 activation and DNA damage caused S-phase cell cycle arrest. Furthermore, immunoblotting studies revealed the activation of intrinsic and maybe extrinsic apoptosis pathways by OEO/thymol. Additionally, in-vitro experiments, indicated that OEO/thymol interacts with DNA via minor grooves confirmed by docking method. Altogether, our reports underlined the potential of OEO to be considered as a new candidate for cancer therapy.
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Affiliation(s)
- Tahereh Jamali
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | | | - Maliheh Safavi
- Department of Biotechnology, Iranian Research Organization for Science and Technology, Tehran, Iran
| | - Susan K Ardestani
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
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Orientin, a flavanoid, mitigates 1, 2 dimethylhydrazine-induced colorectal lesions in Wistar rats fed a high-fat diet. Toxicol Rep 2018; 5:977-987. [PMID: 30319939 PMCID: PMC6180431 DOI: 10.1016/j.toxrep.2018.09.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 09/14/2018] [Accepted: 09/20/2018] [Indexed: 02/01/2023] Open
Abstract
DMH induced preneoplastic lesions in colonic mucosa. Orientin treatment reduced DMH induction of cytochrome P450. Orientin attenuates DMH induced aberrant crypt formation. Orientin suppresses colonic tumor cell proliferation.
Orientin, a c- glycosyl flavonoid found copiously in roobios tea and various medicinal plants is well known for its antioxidant, anti-inflammatory, and antitumor effects. The present study aims to investigate the anti-cancer efficacy of orientin on 1,2 dimethyl hydrazine induced colonic aberrant crypt foci (ACF) and cell proliferation in Wistar rats. Rats were randomly divided into six groups and fed with high fat diet. Group 1 left as untreated control. Group 2 administered with DMH (20 mg/kg body weight) for initial 4 weeks and left untreated. Group 3 received orientin (10 mg/kg body weight) alone for the entire period. Group 4 received orientin along with DMH for initial 4 weeks and left untreated; Group 5 administered DMH for initial 4 weeks and treated with orientin for remaining 12 weeks; Group 6 administered DMH and treated with orientin throughout the entire period. Our preclinical findings suggest that the administration of orientin decreases the occurrence of DMH induced colonic polyps and aberrant crypt foci, augments antioxidant defense and altered the activities of drug metabolizing phase I and phase II enzymes in colonic and hepatic tissues and thereby ensuring the detoxification of carcinogen. Furthermore, orientin attenuates the aberrant crypt foci formation and reinstates the DMH induced cell proliferation, as evident from the AgNORs staining of colonic tissues of experimental rats. Thus, our study emphasizes that orientin may prevent DMH induced precancerous lesions and proven to be a potent antioxidant and antiproliferative agent.
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Vanegas KG, Larsen AB, Eichenberger M, Fischer D, Mortensen UH, Naesby M. Indirect and direct routes to C-glycosylated flavones in Saccharomyces cerevisiae. Microb Cell Fact 2018; 17:107. [PMID: 29986709 PMCID: PMC6036675 DOI: 10.1186/s12934-018-0952-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 06/28/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND C-glycosylated flavones have recently attracted increased attention due to their possible benefits in human health. These biologically active compounds are part of the human diet, and the C-linkage makes them more resistant to hydrolysis and degradation than O-glycosides. In contrast to O-glycosyltransferases, few C-glycosyltransferases (CGTs) have so far been characterized. Two different biosynthetic routes for C-glycosylated flavones have been identified in plants. Depending on the type of C-glycosyltransferase, flavones can be glycosylated either directly or indirectly via C-glycosylation of a 2-hydroxyflavanone intermediate formed by a flavanone 2-hydroxylase (F2H). RESULTS In this study, we reconstructed the pathways in the yeast Saccharomyces cerevisiae, to produce some relevant CGT substrates, either the flavanones naringenin and eriodictyol or the flavones apigenin and luteolin. We then demonstrated two-step indirect glycosylation using combinations of F2H and CGT, to convert 2-hydroxyflavanone intermediates into the 6C-glucoside flavones isovitexin and isoorientin, and the 8C-glucoside flavones vitexin and orientin. Furthermore, we established direct glycosylation of flavones using the recently identified GtUF6CGT1 from Gentiana triflora. The ratio between 6C and 8C glycosylation depended on the CGT used. The indirect route resulted in mixtures, similar to what has been reported for in vitro experiments. In this case, hydroxylation at the flavonoid 3'-position shifted the ratio towards the 8C-glucosylated orientin. The direct flavone glycosylation by GtUF6CGT1, on the other hand, resulted exclusively in 6C-glucosides. CONCLUSIONS The current study features yeast as a promising host for production of flavone C-glycosides, and it provides a set of tools and strains for identifying and studying CGTs and their mechanisms of C-glycosylation.
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Affiliation(s)
- Katherina Garcia Vanegas
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 223, 2800 Kgs, Lyngby, Copenhagen, Denmark
| | | | | | - David Fischer
- Evolva SA, Duggingerstrasse 23, 4153, Reinach, Switzerland
| | - Uffe Hasbro Mortensen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 223, 2800 Kgs, Lyngby, Copenhagen, Denmark
| | - Michael Naesby
- Evolva SA, Duggingerstrasse 23, 4153, Reinach, Switzerland.
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Huang D, jin L, Li Z, Wu J, Zhang N, Zhou D, Ni X, Hou T. Isoorientin triggers apoptosis of hepatoblastoma by inducing DNA double-strand breaks and suppressing homologous recombination repair. Biomed Pharmacother 2018. [DOI: 10.1016/j.biopha.2018.02.142] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Wang R, Yang L, Li S, Ye D, Yang L, Liu Q, Zhao Z, Cai Q, Tan J, Li X. Quercetin Inhibits Breast Cancer Stem Cells via Downregulation of Aldehyde Dehydrogenase 1A1 (ALDH1A1), Chemokine Receptor Type 4 (CXCR4), Mucin 1 (MUC1), and Epithelial Cell Adhesion Molecule (EpCAM). Med Sci Monit 2018; 24:412-420. [PMID: 29353288 PMCID: PMC5788241 DOI: 10.12659/msm.908022] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Background Quercetin, nature’s most common flavonoid, possesses anticarcinogenic properties against various forms of cancer. The aim of this study was to investigate the effect of quercetin on breast cancer stem cells in the MDA-MB-231 cell line, and to elucidate the possible mechanisms for those effects. Material/Methods We evaluated breast cancer stem cell proliferation, clone generation, and mammosphere formation to determine the effect of quercetin treatment on breast cancer stem cells. Results In our study, quercetin suppressed breast cancer stem cell proliferation, self-renewal, and invasiveness. It also lowered the expression levels of proteins related to tumorigenesis and cancer progression, such as aldehyde dehydrogenase 1A1, C-X-C chemokine receptor type 4, mucin 1, and epithelial cell adhesion molecules. Conclusions These results indicate that quercetin targets and destroys breast cancer stem cells, making it a potential novel drug in the fight against cancer.
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Affiliation(s)
- Rong Wang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Department of Pharmacy, College of Marine Science, Hainan University, Haikou, Hainan, China (mainland)
| | - Laixiu Yang
- Department of Pharmacognosy, College of Pharmacy, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China (mainland)
| | - Shen Li
- Affiliated Hospital of Chifeng University, Chifeng, Inner Mongolia, China (mainland)
| | - Dongmei Ye
- Medical College of Chifeng University, Chifeng, Inner Mongolia, China (mainland)
| | - Lihong Yang
- Medical College of Chifeng University, Chifeng, Inner Mongolia, China (mainland)
| | - Qingyan Liu
- Medical College of Chifeng University, , China (mainland)
| | - Zibo Zhao
- Medical College of Chifeng University, Chifeng, Inner Mongolia, China (mainland)
| | - Qing Cai
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China (mainland)
| | - Junzhen Tan
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China (mainland)
| | - Xiuli Li
- Key Laboratory of Pharmacology, Chifeng University, Chifeng, Inner Mongolia, China (mainland)
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Bai HH, Wang NN, Mi J, Yang T, Fang DM, Wu LW, Zhao H, Li GY. Hydroxycinnamoylmalated flavone C -glycosides from Lemna japonica. Fitoterapia 2018; 124:211-216. [DOI: 10.1016/j.fitote.2017.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/09/2017] [Accepted: 11/13/2017] [Indexed: 01/20/2023]
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Thangaraj K, Vaiyapuri M. Orientin, a C-glycosyl dietary flavone, suppresses colonic cell proliferation and mitigates NF-κB mediated inflammatory response in 1,2-dimethylhydrazine induced colorectal carcinogenesis. Biomed Pharmacother 2017; 96:1253-1266. [PMID: 29198745 DOI: 10.1016/j.biopha.2017.11.088] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 11/04/2017] [Accepted: 11/17/2017] [Indexed: 02/07/2023] Open
Abstract
Orientin, a C-glycosyl dietary flavone profusely found in rooibos tea and passion fruit have gained much attention owing to their multiple pharmacological potentials. The present study intends to investigate the anti-proliferative and anti-inflammatory efficacy of Orientin in 1,2-dimethyl hydrazine (DMH) induced colorectal cancer (CRC) in rats. Animals were arbitrarily segmented into six groups and fed with high-fat diet. Group 1 served as control. Group 2 received weekly subcutaneous injections of DMH (20 mg/kg b.w.), for first 15 weeks. Group 3 administered with Orientin (10 mg/kg b.w., i.p.) whereas Groups 4-6 treated with Orientin in three phases, namely initiation (along with DMH), post-initiation (post-DMH injection) and entire period. Orientin ameliorates tumor marker levels significantly (p < 0.05) and reinstates the histological changes induced by DMH. The proliferative markers (PCNA and Ki67) were observed to be suppressed significantly (p < 0.05) in Orientin treated rats. Orientin abrogates (p < 0.05) the inflammatory mast cells and diminishes the expression of pro-inflammatory NF-κB and cytokines (TNF-α and IL-6). It also down-regulates over expression of inflammatory inducible enzymes (iNOS and COX-2) significantly (p < 0.05) and further substantiated by GLIDE XP and QPLD studies. Overall results promptly elucidate the anti-proliferative and anti-inflammatory efficacy of Orientin against CRC. Orientin can be developed as a promising chemotherapeutic agent, on further validation of other molecular mechanisms.
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Affiliation(s)
- Kalaiyarasu Thangaraj
- Molecular Oncology Lab, Department of Biochemistry, Periyar University, Salem, Tamil Nadu, 636 011, India
| | - Manju Vaiyapuri
- Molecular Oncology Lab, Department of Biochemistry, Periyar University, Salem, Tamil Nadu, 636 011, India.
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Optimization of Phenolic Compounds Extraction from Flax Shives and Their Effect on Human Fibroblasts. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:3526392. [PMID: 29292398 PMCID: PMC5674500 DOI: 10.1155/2017/3526392] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/18/2017] [Accepted: 09/05/2017] [Indexed: 11/17/2022]
Abstract
The goal of this study was to evaluate the most effective technique for extraction of phenolics present in flax shives and to assess their effect on human fibroblasts. Flax shives are by-products of fibre separation, but they were found to be a rich source of phenolic compounds and thus might have application potential. It was found that the optimal procedure for extraction of phenolics was hydrolysis enhanced by the ultrasound with NaOH for 24 h at 65°C and subsequent extraction with ethyl acetate. The influence of the flax shives extract on fibroblast growth and viability was assessed using the MTT and SRB tests. Moreover, the influence of flax shives extract on the extracellular matrix remodelling process was verified. The 20% increase of the viability was observed upon flax shives extract treatment and the decrease of mRNA collagen genes, an increase of matrix metalloproteinase gene expression, and reduction in levels of interleukin 6, interleukin 10, and suppressor of cytokinin signaling 1 mRNA were observed. Alterations in MCP-1 mRNA levels were dependent on flax shives extract concentration. Thus, we suggested the possible application of flax shives extract in the wound healing process.
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Ganesan K, Xu B. Molecular targets of vitexin and isovitexin in cancer therapy: a critical review. Ann N Y Acad Sci 2017; 1401:102-113. [DOI: 10.1111/nyas.13446] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 06/30/2017] [Accepted: 07/14/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Kumar Ganesan
- Food Science and Technology Program; Beijing Normal University-Hong Kong Baptist University United International College; Zhuhai Guangdong China
| | - Baojun Xu
- Food Science and Technology Program; Beijing Normal University-Hong Kong Baptist University United International College; Zhuhai Guangdong China
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Cudraflavone C Induces Apoptosis of A375.S2 Melanoma Cells through Mitochondrial ROS Production and MAPK Activation. Int J Mol Sci 2017; 18:ijms18071508. [PMID: 28703746 PMCID: PMC5535998 DOI: 10.3390/ijms18071508] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 07/04/2017] [Accepted: 07/06/2017] [Indexed: 11/19/2022] Open
Abstract
Melanoma is the most malignant form of skin cancer and is associated with a very poor prognosis. The aim of this study was to evaluate the apoptotic effects of cudraflavone C on A375.S2 melanoma cells and to determine the underlying mechanisms involved in apoptosis. Cell viability was determined using the MTT and real-time cytotoxicity assays. Flow cytometric evaluation of apoptosis was performed after staining the cells with Annexin V-FITC and propidium iodide. The mitochondrial membrane potential was evaluated using the JC-1 assay. Cellular ROS production was measured using the CellROX assay, while mitochondrial ROS production was evaluated using the MitoSOX assay. It was observed that cudraflavone C inhibited growth in A375.S2 melanoma cells, and promoted apoptosis via the mitochondrial pathway mediated by increased mitochondrial ROS production. In addition, cudraflavone C induced phosphorylation of MAPKs (p38, ERK, and JNK) and up-regulated the expression of apoptotic proteins (Puma, Bax, Bad, Bid, Apaf-1, cytochrome C, caspase-9, and caspase-3/7) in A375.S2 cells. Pretreatment of A375.S2 cells with MitoTEMPOL (a mitochondria-targeted antioxidant) attenuated the phosphorylation of MAPKs, expression of apoptotic proteins, and the overall progression of apoptosis. In summary, cudraflavone C induced apoptosis in A375.S2 melanoma cells by increasing mitochondrial ROS production; thus, activating p38, ERK, and JNK; and increasing the expression of apoptotic proteins. Therefore, cudraflavone C may be regarded as a potential form of treatment for malignant melanoma.
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Zhang F, Shi JJ, Thakur K, Hu F, Zhang JG, Wei ZJ. Anti-Cancerous Potential of Polysaccharide Fractions Extracted from Peony Seed Dreg on Various Human Cancer Cell Lines Via Cell Cycle Arrest and Apoptosis. Front Pharmacol 2017; 8:102. [PMID: 28316571 PMCID: PMC5334287 DOI: 10.3389/fphar.2017.00102] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 02/20/2017] [Indexed: 12/24/2022] Open
Abstract
In this study, four homo/heterogenous polysaccharides (HBSS, CHSS, DASS, and CASS) extracted from peony seed dreg with respective molecular weights of 3467, 4677, 229, and 56 kDa were evaluated for anti-cancerous attributes in prostate cancer cells (Pc-3), colon cancer cells (HCT-116), human breast cancer cells (MCF-7), cervical cancer (Hela cells) and human embryonic kidney 293 (HEK 293) cells as control. Among them, CASS and DASS extracted by alkali, consisted of 34.43% Gal, 26.39% Ara, 21.80% Glc and 35.77% Ara, 19.35% Gal, 17.77% Man, respectively. CASS fraction had the most significant inhibitory effects on all the cell lines used whereas HBSS had least effect. The CASS shown remarkable inhibition and cytotoxic effects in Hela cells followed by other cell lines as compared to 5-fluorouracil (5-FU). CASS arrested cell cycle in G0/G1 phase except MCF-7 cells and increased apoptotic cells percentage varied in different treated cells. CASS down regulated the expression of Cyclin A/B1/D1/E1, CDK-1/2/4/6 and p15/16/21/27 excluding p53. The notable change in expression of proteins (Cytochrome C, Bax, Bcl-2, p-Caspase-3, -8, -9, and PARP) was observed followed by Apaf-1 and Survivin. These findings indicated that CASS has an anti-cancerous potential in the treatment of human cancers which make it a potent candidate in functional foods.
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Affiliation(s)
| | | | | | | | | | - Zhao-Jun Wei
- School of Food Science and Engineering, Hefei University of TechnologyHefei, China
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