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Goal A, Raj K, Singh S, Arora R. Protective effects of Embelin in Benzo[α]pyrene induced cognitive and memory impairment in experimental model of mice. CURRENT RESEARCH IN NEUROBIOLOGY 2024; 6:100122. [PMID: 38616958 PMCID: PMC11015058 DOI: 10.1016/j.crneur.2023.100122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 04/16/2024] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease that affects the neurons in the hippocampus, resulting in cognitive and memory impairment. The most prominent clinical characteristics of AD are the production of amyloid-beta (Aβ) plaques, neurofibrillary tangles, and neuroinflammation in neurons. It has been proven that embelin (Emb) possesses antioxidant, anti-inflammatory, and neuroprotective properties. Therefore, we assessed the therapeutic potential of Emb in Benzo [α]pyrene (BaP)-induced cognitive impairment in experimental mice. BaP (5 mg/kg, i. p) was given to mice daily for 28 days, and Emb (2.5, 5, and 10 mg/kg, i. p) was given from 14 to 28 days of a protocol. In addition, locomotor activity was evaluated using open-field and spatial working, and non-spatial memory was evaluated using novel object recognition tasks (NORT), Morris water maze (MWM), and Y- maze. At the end of the study, the animal tissue homogenate was used to check biochemicals, neuroinflammation, and neurotransmitter changes. BaP-treated mice showed a significant decline in locomotor activity, learning and memory deficits and augmented oxidative stress (lipid peroxidation, nitrite, and GSH). Further, BaP promoted the release of inflammatory tissue markers, decreased acetylcholine, dopamine, GABA, serotonin, and norepinephrine, and increased glutamate concentration. However, treatment with Emb at dose-dependently prevented biochemical changes, improved antioxidant levels, reduced neuroinflammation, restored neurotransmitter concentration, and inhibited the NF-κB pathway. The current study's finding suggested that Emb improved cognitive functions through antioxidant, anti-inflammatory, and neuroprotective mechanisms and inhibition of acetylcholinesterase (AChE) enzyme activities and Aβ-42 accumulation.
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Affiliation(s)
- Akansh Goal
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India, 142001
| | - Khadga Raj
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India, 142001
| | - Shamsher Singh
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India, 142001
| | - Rimpi Arora
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India, 142001
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Kamath AJ, Chandy AS, Joseph AA, Gorantla JN, Donadkar AD, Nath LR, Sharifi-Rad J, Calina D. Embelin: A multifaceted anticancer agent with translational potential in targeting tumor progression and metastasis. EXCLI JOURNAL 2023; 22:1311-1329. [PMID: 38234968 PMCID: PMC10792175 DOI: 10.17179/excli2023-6590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/23/2023] [Indexed: 01/19/2024]
Abstract
Embelin, a natural para-benzoquinone product, is derived from plants of the Embelia genus, particularly Embelia ribes Burm.f. A staple in traditional medicinal formulations for centuries, Embelin's pharmacological actions are attributed to the hydroxyl benzoquinone present in its structure. Its therapeutic potential is bolstered by unique physical and chemical properties. Recently, Embelin, recognized as a non-peptidic, cell-permeable small inhibitor of the X-linked inhibitor of apoptosis protein (XIAP), has garnered significant attention for its anticancer activity. It demonstrates various anticancer mechanisms, such as apoptosis induction, cell cycle arrest, and autophagy, in different cancer types. Additionally, Embelin modulates several signal transduction pathways, including NF-κB, PI3Kinase/AKT, and STAT3, effectively inhibiting the proliferation of diverse cancer cell lines. This literature review illuminates the anticancer potential of Embelin, detailing its mechanisms of action and prospective clinical applications, based on relevant scientific literature from the past decade sourced from various electronic databases. See also the Graphical abstract(Fig. 1).
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Affiliation(s)
- Adithya Jayaprakash Kamath
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi-682 041, India
- Department of Pharmaceutics, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi-682 041, India
| | - Alda Sara Chandy
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi-682 041, India
| | - Aina Ann Joseph
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi-682 041, India
| | - Jaggiah N. Gorantla
- Department of Chemistry, Wayne State University, Detroit-48202, Michigan, USA
| | - Asawari Dilip Donadkar
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi-682 041, India
- Department of Pharmaceutics, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi-682 041, India
| | - Lekshmi R. Nath
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi-682 041, India
| | | | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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Tang Q, Tang Y, Yang Q, Chen R, Zhang H, Luo H, Xiao Q, Liu K, Huang L, Chen J, Wang L, Song X, Chen S, Li G, Wang L, Li Y. Embelin attenuates lipopolysaccharide-induced acute kidney injury through the inhibition of M1 macrophage activation and NF-κB signaling in mice. Heliyon 2023; 9:e14006. [PMID: 36938407 PMCID: PMC10018479 DOI: 10.1016/j.heliyon.2023.e14006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 01/27/2023] [Accepted: 02/17/2023] [Indexed: 02/27/2023] Open
Abstract
Septic acute kidney injury (AKI) is commonly associated with renal dysfunction and high mortality in patients. Owing to the rapid and violent occurrence of septic AKI with inflammation, there are no effective therapies to clinically treat it. Embelin, a natural product, has a potential regulatory role in immunocytes. However, the role and mechanism of embelin in septic AKI remains unknown. This study aimed to elucidate the role of embelin in macrophage regulation in lipopolysaccharide (LPS)-induced septic AKI. Embelin was intraperitoneally administered to mice after LPS injection. And bone marrow-derived macrophages (BMDMs) were subsequently isolated from the mice to explore the immunomodulatory role of embelin in macrophages. We found that embelin attenuated renal dysfunction and pathological renal damage in the LPS-induced sepsis mouse model. Molecular docking predicted that embelin could bind to phosphorylated NF-κB p65 at the ser536 site. Embelin inhibited the translocation of NF-κB p65 via phosphorylation at ser536 in LPS-induced AKI. It also reduced the secretion of IL-1β and IL-6 and increased the secretion of IL-10 and Arg-1 of BMDMs and mice after LPS stimulation, indicating that embelin suppressed macrophage M1 activation in LPS-induced AKI. Therefore, embelin attenuated LPS-induced septic AKI by suppressing NF-κB p65 at ser536 in activated macrophages. This study preclinically suggests a therapeutic role of embelin in septic AKI.
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Key Words
- AKI, acute kidney injury
- BMDMs, bone marrow-derived macrophages
- BUN, blood urea nitrogen
- DMEM, Dulbecco's modified eagle's medium
- Embelin
- FBS, fetal bovine serum
- HE, hematoxylin & eosin
- ICU, intensive care unit
- IHC, immunohistochemistry
- Inflammation
- LPS, lipopolysaccharide
- Macrophage
- PAS, periodic-acid Schiff
- Phosphorylated NF-κB p65 translocation
- Scr, serum creatinine
- Septic acute kidney injury
- mIF, multiplex immunofluorescent
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Affiliation(s)
- Qiao Tang
- North Sichuan Medical College, Nanchong, 637000, Sichuan, China
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Yun Tang
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, Sichuan, China
| | - Qun Yang
- Department of Pathology, School of Medicine, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Rong Chen
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Hong Zhang
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
- Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Haojun Luo
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Qiong Xiao
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Kaixiang Liu
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Liming Huang
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Jie Chen
- Central Laboratory, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Lin Wang
- Institute of Laboratory Animal Sciences, School of Medicine, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Xinrou Song
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Sipei Chen
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Guisen Li
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, Sichuan, China
| | - Li Wang
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, Sichuan, China
| | - Yi Li
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, 610072, Sichuan, China
- Corresponding author. Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China.
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Martín-Acosta P, Cuadrado I, González-Cofrade L, Pestano R, Hortelano S, de las Heras B, Estévez-Braun A. Synthesis of Quinoline and Dihydroquinoline Embelin Derivatives as Cardioprotective Agents. JOURNAL OF NATURAL PRODUCTS 2023; 86:317-329. [PMID: 36749898 PMCID: PMC9972480 DOI: 10.1021/acs.jnatprod.2c00924] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Indexed: 06/18/2023]
Abstract
A set of new dihydroquinoline embelin derivatives was obtained from the reaction of the natural benzoquinone embelin (1) with anilines and aromatic aldehydes in the presence of AgOTf. The synthesis of these compounds involves the formation of a Knoevenagel adduct, followed by nucleophilic addition of aniline and subsequent electrocyclic ring closure. The scope of the reaction regarding the aldehydes and anilines was determined. Quinoline derivatives were also obtained from the corresponding dihydroquinolines under oxidation with DDQ. The cardioprotective activity of the synthesized compounds was screened using a doxorubicin-induced cardiotoxicity model in H9c2 cardiomyocytes. Some structure-activity relationships were outlined, and the best activities were achieved with quinoline-embelin derivatives having a 4-nitrophenyl group attached at the pyridine ring. The obtained results indicated that embelin derivatives 4i, 6a, 6d, 6k, and 6m could have potential as cardioprotective agents, as they attenuated a DOX-induced cardiotoxicity effect acting on oxidative stress and apoptosis.
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Affiliation(s)
- Pedro Martín-Acosta
- Instituto
Universitario de Bio-Orgánica Antonio González, Departamento
de Química Orgánica, Universidad
de La Laguna, Avenida Astrofísico Francisco Sánchez N° 2, 38206, La Laguna, Tenerife, Spain
| | - Irene Cuadrado
- Departamento
de Farmacología, Farmacognosia y Botánica, Facultad
de Farmacia, Universidad Complutense de
Madrid (UCM), Plaza Ramón y Cajal s/n, 28040, Madrid, Spain
| | - Laura González-Cofrade
- Departamento
de Farmacología, Farmacognosia y Botánica, Facultad
de Farmacia, Universidad Complutense de
Madrid (UCM), Plaza Ramón y Cajal s/n, 28040, Madrid, Spain
| | - Roberto Pestano
- Instituto
Universitario de Bio-Orgánica Antonio González, Departamento
de Química Orgánica, Universidad
de La Laguna, Avenida Astrofísico Francisco Sánchez N° 2, 38206, La Laguna, Tenerife, Spain
| | - Sonsoles Hortelano
- Unidad
de Terapias Farmacológicas, Área de Genética
Humana, Instituto de Investigación
de Enfermedades Raras (IIER), Instituto de Salud Carlos III, Carretera de Majadahonda-Pozuelo
Km 2, 28220, Madrid, Spain
| | - Beatriz de las Heras
- Departamento
de Farmacología, Farmacognosia y Botánica, Facultad
de Farmacia, Universidad Complutense de
Madrid (UCM), Plaza Ramón y Cajal s/n, 28040, Madrid, Spain
| | - Ana Estévez-Braun
- Instituto
Universitario de Bio-Orgánica Antonio González, Departamento
de Química Orgánica, Universidad
de La Laguna, Avenida Astrofísico Francisco Sánchez N° 2, 38206, La Laguna, Tenerife, Spain
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Lipopolysaccharide Promotes the Proliferation and Differentiation of Goose Embryonic Myoblasts by Promoting Cytokine Expression and Appropriate Apoptosis Processes. Vet Sci 2022; 9:vetsci9110615. [PMID: 36356092 PMCID: PMC9692480 DOI: 10.3390/vetsci9110615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/21/2022] [Accepted: 10/27/2022] [Indexed: 11/09/2022] Open
Abstract
Lipopolysaccharide (LPS) can trigger a series of immune reactions, leading to the occurrence of disease and a decrease in the growth performance of geese. However, the mechanisms of LPS in geese muscle development have not been reported. This study aimed to investigate the effects and mechanisms of LPS on proliferation and differentiation of goose embryonic myoblasts. Embelin and belnacasan combined with LPS were used to explore these effects. Our results demonstrated that LPS significantly induced inflammatory cytokine production in both proliferation and differentiation stages. LPS and embelin treatment significantly improved the proliferation ability (p < 0.05), while LPS reduced the differentiation ability of goose embryonic myoblasts. By adding embelin, the differentiation ability of myoblasts was enhanced, while by adding belnacasan, LPS treatment led to a lower differentiation ability. Combined with the correlation of the expression levels of myogenic, cell cycle, and inflammatory-related genes and proteins, it is speculated that one of the reason for the decrease of differentiation ability of goose embryo myoblasts induced by LPS is the increase of the expression levels of pro-inflammatory factors. Moreover, LPS, embelin and belnacasan, and LPS treatments could significantly increase the apoptosis rate of goose embryonic myoblasts. Taken together, these findings suggest that LPS promotes the proliferation and differentiation of goose embryonic myoblasts by promoting cytokine expression and appropriate apoptosis processes. These findings lay a foundation for the study of the mechanisms of LPS in goose muscle development.
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Embelin and Its Derivatives: Design, Synthesis, and Potential Delivery Systems for Cancer Therapy. Pharmaceuticals (Basel) 2022; 15:ph15091131. [PMID: 36145352 PMCID: PMC9505931 DOI: 10.3390/ph15091131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022] Open
Abstract
Embelin is a naturally occurring benzoquinone that inhibits the growth of cancer cells, making it a potent anticancer drug. However, the low water solubility of embelin restricts its clinical applicability. This review provides a concise summary and in-depth analysis of the published literature on the design and synthesis of embelin derivatives possessing increased aqueous solubility and superior therapeutic efficacy. In addition, the potential of drug delivery systems to improve the anticancer capabilities of embelin and its derivatives is discussed.
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Das R, Mehta DK, Dhanawat M. Medicinal Plants in Cancer Treatment: Contribution of Nuclear Factor-Kappa B (NF-kB) Inhibitors. Mini Rev Med Chem 2022; 22:1938-1962. [PMID: 35260052 DOI: 10.2174/1389557522666220307170126] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/23/2021] [Accepted: 12/14/2021] [Indexed: 01/17/2023]
Abstract
Nuclear factor-kappa B (NF-κB) is one of the principal inducible proteins that is a predominant transcription factor known to control the gene expression in mammals and plays a pivotal role in regulating cell signalling in the body under certain physiological and pathological conditions. In cancer cells, such as colon, breast, pancreatic, ovarian, melanoma, and lymphoma, the NF-κB pathway has been reported to be active. In cellular proliferation, promoting angiogenesis, invasion, metastasis of tumour cells and blocking apoptosis, the constitutive activity of NF-κB signalling has been reported. Therefore, immense attention has been given to developing drugs targeting NF-κB signalling pathways to treat many types of tumours. They are a desirable therapeutic target for drugs, and many studies concentrated on recognizing compounds. They may be able to reverse or standstill the growth and spread of tumours that selectively interfere with this pathway. Recently, numerous substances derived from plants have been evaluated as possible inhibitors of the NF-κB pathway. These include various compounds, such as flavonoids, lignans, diterpenes, sesquiterpenes, polyphenols, etc. A study supported by folk medicine demonstrated that plant-derived compounds could suppress NF-κB signalling. Taking this into account, the present review revealed the anticancer potential of naturally occurring compounds which have been verified both by inhibiting the NF-κB signalling and suppressing growth and spread of cancer and highlighting their mechanism of NF-κB inhibition.
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Affiliation(s)
- Rina Das
- M.M.College of Pharmacy, Maharishi Markandeshwar (Deemed to be) University, Mullana, Ambala, HR, India
| | - Dinesh Kumar Mehta
- M.M.College of Pharmacy, Maharishi Markandeshwar (Deemed to be) University, Mullana, Ambala, HR, India
| | - Meenakshi Dhanawat
- M.M.College of Pharmacy, Maharishi Markandeshwar (Deemed to be) University, Mullana, Ambala, HR, India
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Qin Y, Chen JP, Li CY, Zhu LJ, Zhang X, Wang JH, Yao XS. Flavonoid glycosides from the fruits of Embelia ribes and their anti-oxidant and α-glucosidase inhibitory activities. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2021; 23:724-730. [PMID: 34253100 DOI: 10.1080/10286020.2020.1776266] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 06/13/2023]
Abstract
Three new flavonoid glycosides, embeliaflavosides A-C (1-3), together with eight known flavonoid glycosides (4-11), were isolated from the fruits of Embelia ribes. Their structures were established based on the analyses of spectroscopic data. Compounds 1-11 were evaluated for antioxidant and α-glucosidase inhibitory activities. The results revealed that compounds 1-11 owned significant ABTS radical scavenging activity with IC50 values of 2.52-9.78 µM, and DPPH scavenging activity with IC50 values of 7.56-26.47 µM, respectively. However, α-glucosidase inhibition assay indicated that all the isolates were inactive.[Formula: see text].
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Affiliation(s)
- Yu Qin
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jin-Peng Chen
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
- Tianjin Key Laboratory of TCM Quality Markers, Tianjin Institute of Pharmaceutical Research, Tianjin 300193, China
| | - Chun-Yu Li
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ling-Juan Zhu
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xue Zhang
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jin-Hui Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin 150081, China
| | - Xin-Sheng Yao
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
- Institute of Traditional Chinese Medicine & Natural Products, Jinan University, Guangzhou 510632, China
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Khare T, Mahalunkar S, Shriram V, Gosavi S, Kumar V. Embelin-loaded chitosan gold nanoparticles interact synergistically with ciprofloxacin by inhibiting efflux pumps in multidrug-resistant Pseudomonas aeruginosa and Escherichia coli. ENVIRONMENTAL RESEARCH 2021; 199:111321. [PMID: 33989619 DOI: 10.1016/j.envres.2021.111321] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/30/2021] [Accepted: 05/08/2021] [Indexed: 05/20/2023]
Abstract
A global upsurge in emergence and spread of antibiotic resistance (ABR) in bacterial populations is a serious threat for human health. Unfortunately, ABR is no longer confined to nosocomial environments and is frequently reported from community microbes as well. The ABR is resulting in shrinking potent antibiotics pool and thus necessitating novel and alternative therapies and therapeutics. Current investigation was aimed to assess the synergistic potential of a synthesized, phytomolecule-loaded, polysaccharide-stabilized metallic nanoparticles (NPs) against Pseudomonas aeruginosa (PA) and Escherichia coli (EC) isolated from river waters. ABR profiling of these strains characterized them as multidrug resistant (MDR). Synthesized embelin (Emb, isolated from Embelia tsjeriam-cottam)-loaded, chitosan-gold (Emb-Chi-Au) NPs were assessed for their potential synergistic activity with ciprofloxacin (CIP) via checker-board assay and time-kill curve analysis. The NPs reduced the minimal inhibitory concentration (MIC) of CIP by 16- and 4-fold against MDR PA (PA-r) and EC (EC-r) strains, respectively. Fractional inhibitory concentration (FIC) indices with ≤0.5 values confirmed the synergy between the Emb-Chi-Au NPs and CIP, which was further confirmed at ½ MICs in both PA-r and EC-r via time-kill curve analysis. In order to decipher the mode of action, efflux pump inhibitory effects of Emb-Chi-Au NPs were evaluated in terms of the increase in the EtBr mediated fluorescence in control versus NP-treated MDR strains. Molecular docking based in silico simulations were used to predict the interactions between Emb and the active sites of the efflux pump related proteins in PA-r (MexA, MexB and OprM) and EC-r (AcrA, AcrB and TolC), which revealed the probable bond formation between Emb and respective amino acid residues.
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Affiliation(s)
- Tushar Khare
- Department of Biotechnology, Modern College of Arts, Science and Commerce (Savitribai Phule Pune University), Ganeshkhind, Pune, 411016, India; Department of Environmental Science, Savitribai Phule Pune University, Pune, 411007, India
| | - Sneha Mahalunkar
- School of Basic Medical Science, Savitribai Phule Pune University, Pune, 411007, India
| | - Varsha Shriram
- Department of Botany, Prof. Ramkrishna More Arts, Commerce and Science College (Savitribai Phule Pune University), Pune, 411044, India
| | - Suresh Gosavi
- School of Basic Medical Science, Savitribai Phule Pune University, Pune, 411007, India; Department of Physics, Savitribai Phule Pune University, Pune, 411007, India.
| | - Vinay Kumar
- Department of Biotechnology, Modern College of Arts, Science and Commerce (Savitribai Phule Pune University), Ganeshkhind, Pune, 411016, India; Department of Environmental Science, Savitribai Phule Pune University, Pune, 411007, India.
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Basha NJ, Basavarajaiah SM, Baskaran S, Kumar P. A comprehensive insight on the biological potential of embelin and its derivatives. Nat Prod Res 2021; 36:3054-3068. [PMID: 34304655 DOI: 10.1080/14786419.2021.1955361] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Naturally occurring bioactive molecules are known for their diverse biological applications such as antimicrobial, anticancer, anti-inflammatory, and analgesic activities. Also, some of the natural products act as medicinal drugs. Further, bioactive cell-permeable molecule embelin has been reported for its diverse biological activities such as antimalarial, anticancer, and anti-inflammatory in the literature. With the continuation of our research work on biologically active molecules, based on structural activity relationship and docking studies of embelin and its derivatives, we have reported target-specific anticancer and antimalarial activities of embelin and its analogs. Also, it has been reported in many recent research articles that embelin and its derivatives are known to possess medicinal properties. This review mainly highlights recent reports on broad-spectrum biological activities of the embelin and its analogs to date.
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Affiliation(s)
- N Jeelan Basha
- Department of Chemistry, Indian Academy Degree College-Autonomous, Bangalore, India
| | | | - Swathi Baskaran
- Department of Chemistry, Indian Academy Degree College-Autonomous, Bangalore, India
| | - Prasanna Kumar
- Department of Chemistry, Indian Academy Degree College-Autonomous, Bangalore, India
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Opata MR, Dreuw A. Embelin's Versatile Photochemistry Makes It a Potent Photosensitizer for Photodynamic Therapy. J Phys Chem B 2021; 125:3527-3537. [PMID: 33821648 DOI: 10.1021/acs.jpcb.1c00330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Embelin, a natural product isolated from Embelia ribes, is a promising small-molecular drug for photodynamic anticancer therapy. Using modern quantum chemical methodology, embelin is shown to possess a versatile photochemistry comprising the capability of singlet oxygen generation, excited-state proton transfer, and oxidation. In particular, the detailed molecular mechanisms of singlet oxygen generation and proton transfer upon excitation are studied in great detail. While excited-state proton transfer can damage the protein itself, it also mediates intersystem crossing along its reaction pathway, thus facilitating singlet oxygen generation. When embelin is bound to proteins, all these processes can lead to protein damage and the desired phototoxicity.
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Affiliation(s)
- Michael Rogo Opata
- Interdisciplinary Center for Scientific Computing, Heidelberg University, Im Neuenheimer Feld 205, D-69120 Heidelberg, Germany
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing, Heidelberg University, Im Neuenheimer Feld 205, D-69120 Heidelberg, Germany
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Elias T, Lee LH, Rossi M, Caruso F, Adams SD. In Vitro Analysis of the Antioxidant and Antiviral Activity of Embelin against Herpes Simplex Virus-1. Microorganisms 2021; 9:434. [PMID: 33669814 PMCID: PMC7922599 DOI: 10.3390/microorganisms9020434] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 12/16/2022] Open
Abstract
Herpes simplex virus-1 (HSV-1) causes a wide range of infections from mild to life-threatening in the human population. There are effective treatments for HSV-1 infections that are limited due HSV-1 latency and development of resistance to current therapeutics. The goal of this study was to investigate the antioxidant and antiviral effects of embelin on HSV-1 in cultured Vero cells. Oxidative stress was verified by an extensive production of a reactive oxygen species (ROS) H2O2. Vero cells were infected with a recombinant strain of HSV-1 and antiviral assays, time course attachment, penetration, and post penetration assays, confocal microscopy, qPCR, and antioxidant assays were conducted. Our results lead to the conclusion that embelin is noncytotoxic at concentrations tested ranging from 20 to 70 µM. Treatment of HSV-1 virions with embelin resulted in 98.7-100% inhibition and affected the early stage of HSV-1 infection of Vero cells, by inhibiting the attachment and penetration of HSV-1 virions to host cells. Treatment of virions with concentrations of embelin ranging from 35 to 60 µM significantly reduced the production of H2O2. In conclusion, embelin reduces oxidative damage caused by HSV-1 infection and is an effective antiviral to reduce the infection of HSV-1 in cultured Vero cells. Further studies are needed to explore the possibility of embelin as a medicinal agent.
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Affiliation(s)
- Tony Elias
- Department of Biology, Montclair State University, Montclair, NJ 07043, USA; (T.E.); (L.H.L.)
| | - Lee H. Lee
- Department of Biology, Montclair State University, Montclair, NJ 07043, USA; (T.E.); (L.H.L.)
| | - Miriam Rossi
- Department of Chemistry, Vassar College, Poughkeepsie, NY 12604, USA; (M.R.); (F.C.)
| | - Francesco Caruso
- Department of Chemistry, Vassar College, Poughkeepsie, NY 12604, USA; (M.R.); (F.C.)
| | - Sandra D. Adams
- Department of Biology, Montclair State University, Montclair, NJ 07043, USA; (T.E.); (L.H.L.)
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13
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An Updated Review of Smac Mimetics, LCL161, Birinapant, and GDC-0152 in Cancer Treatment. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app11010335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Inhibitor of apoptosis proteins (IAPs) are suggested as therapeutic targets for cancer treatment. Smac/DIABLO is a natural IAP antagonist in cells; therefore, Smac mimetics have been developed for cancer treatment in the past decade. In this article, we review the anti-cancer potency and novel molecular targets of LCL161, birinapant, and GDC-0152. Preclinical studies demonstrated that Smac mimetics not only induce apoptosis but also arrest cell cycle, induce necroptosis, and induce immune storm in vitro and in vivo. The safety and tolerance of Smac mimetics are evaluated in phase 1 and phase 2 clinical trials. In addition, the combination of Smac mimetics and chemotherapeutic compounds was reported to improve anti-cancer effects. Interestingly, the novel anti-cancer molecular mechanism of action of Smac mimetics was reported in recent studies, suggesting that many unknown functions of Smac mimetics still need to be revealed. Exploring these currently unknown signaling pathways is important to provide hints for the modification and combination therapy of further compounds.
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14
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Caruso F, Rossi M, Pedersen JZ, Incerpi S. Computational studies reveal mechanism by which quinone derivatives can inhibit SARS-CoV-2. Study of embelin and two therapeutic compounds of interest, methyl prednisolone and dexamethasone. J Infect Public Health 2020; 13:1868-1877. [PMID: 33109497 PMCID: PMC7556809 DOI: 10.1016/j.jiph.2020.09.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/14/2020] [Accepted: 09/27/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Quinones are reactive to proteins containing cysteine residues and the main protease in Covid-19 contains an active site that includes Cys145. Embelin, a quinone natural product, is known to have antiviral activity against influenza and hepatitis B. Preliminary studies by our group also indicate its ability to inhibit HSV-1 in cultured cells. METHODS Docking and DFT methods applied to the protease target. RESULTS a mechanism for this inhibition of the SARS-CoV-2 Mpro protease is described, specifically due to formation of a covalent bond between S(Cys145) and an embelin C(carbonyl). This is assisted by two protein amino acids (1) N(imidazole-His41) which is able to capture H[S(Cys145)] and (2) HN(His163), which donates a proton to embelin O(carbonyl) forming an OH moiety that results in inhibition of the viral protease. A similar process is also seen with the anti-inflammatory drugs methyl prednisolone and dexamethasone, used for Covid-19 patients. Methyl prednisolone and dexamethasone are methide quinones, and possess only one carbonyl moiety, instead of two for embelin. Additional consideration was given to another natural product, emodin, recently patented against Covid-19, as well as some therapeutic quinones, vitamin K, suspected to be involved in Covid-19 action, and coenzyme Q10. All show structural similarities with embelin, dexamethasone and methyl prednisolone results. CONCLUSIONS Our data on embelin and related quinones indicate that these natural compounds may represent a feasible, strategic tool against Covid-19.
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Affiliation(s)
- Francesco Caruso
- Vassar College, Department of Chemistry, Poughkeepsie NY 12604, USA.
| | - Miriam Rossi
- Vassar College, Department of Chemistry, Poughkeepsie NY 12604, USA
| | - Jens Z Pedersen
- Department of Biology, University Tor Vergata, 00133 Rome, Italy
| | - Sandra Incerpi
- Department of Sciences, University Roma Tre, 00146 Rome, Italy
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15
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NF-κB inhibitors in treatment and prevention of lung cancer. Biomed Pharmacother 2020; 130:110569. [PMID: 32750649 DOI: 10.1016/j.biopha.2020.110569] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/12/2020] [Accepted: 07/26/2020] [Indexed: 12/27/2022] Open
Abstract
Intracellular signalling pathways have provided excellent resource for drug development particularly in the development of cancer therapeutics. A wide variety of malignancies common in human exhibit aberrant NF-κB constitutive expression which results in tumorigenic processes and cancer survival in a variety of solid tumour, including pancreatic cancer, lung, cervical, prostate, breast and gastric carcinoma. Numerous evidences indicate that NF-κB signalling mechanism is mainly involved in the progression of several cancers which may intensify an enhanced knowledge on its role in disease particularly lung tumorigenesis. This has led to tremendous research in designing a variety of NF-κB antagonists with enhanced clinical applications through different approaches the most common being suppression of IκB kinase (IKK) beta activity. Many NF-κB inhibitors for lung cancer are now under clinical trials. Preliminary results of clinical trials for several of these agents include small-molecule inhibitors and monoclonal antibodies. A few combinatorial treatment therapies are currently under investigation in the clinics and have shown promise, particularly NF-κB inhibition associated with lung cancer.
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Wang Z, Chen J, Little N, Lu J. Self-assembling prodrug nanotherapeutics for synergistic tumor targeted drug delivery. Acta Biomater 2020; 111:20-28. [PMID: 32454086 PMCID: PMC7245299 DOI: 10.1016/j.actbio.2020.05.026] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/27/2020] [Accepted: 05/18/2020] [Indexed: 01/08/2023]
Abstract
Self-assembling prodrugs represents a robust and effective nanotherapeutic approach for delivering poorly soluble anticancer drugs. With numerous intrinsic advantages, self-assembling prodrugs possess the maximum drug loading capacity, controlled drug release kinetics, prolonged blood circulation, and preferential tumor accumulation based on the enhanced permeability and retention (EPR) effect. These prodrug conjugates allow for efficient self-assembly into nanodrugs with the potential of encapsulating other therapeutic agents that have different molecular targets, enabling simultaneous temporal-spatial release of drugs for synergistic antitumor efficacy with reduced systemic side effects. The aim of this review is to summarize the recent progress of self-assembling prodrug cancer nanotherapeutics that are made through conjugating therapeutically active agents to Polyethylene glycol, Vitamin E, or drugs with different physicochemical properties via rational design, for synergistic tumor targeted drug delivery. Statement of Significance All current FDA-approved nanomedicines use inert biomaterials as drug delivery carriers. These biomaterials lack any therapeutic potential, contributing not only to the cost, but may also elicit severe unfavorable adverse effects. Despite the reduction in toxicity associated with the payload, these nanotherapeutics have been met with limited clinical success, likely due to the monotherapy regimen. The self-assembling prodrug (SAP) has been emerging as a powerful platform for enhancing efficacy through co-delivering other therapeutic modalities with distinct molecular targets. Herein, we opportunely present a comprehensive review article summarizing three unique approaches of making SAP for synergistic drug delivery: pegylation, vitamin E-derivatization, and drug-drug conjugation. These SAPs may inevitably pave the way for developing more efficacious, clinically translatable, combination cancer nanotherapies.
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17
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Wróbel-Biedrawa D, Grabowska K, Galanty A, Sobolewska D, Żmudzki P, Podolak I. Anti-melanoma potential of two benzoquinone homologues embelin and rapanone - a comparative in vitro study. Toxicol In Vitro 2020; 65:104826. [PMID: 32169436 DOI: 10.1016/j.tiv.2020.104826] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/29/2020] [Accepted: 03/09/2020] [Indexed: 11/30/2022]
Abstract
Rapanone and embelin are simple alkyl benzoquinone derivatives, mainly distributed in the Primulaceae. They have an interesting scope of biological activities including cytotoxicity. As melanoma is one of the most common types of cancer, in many cases resistant to current treatment regimens, the aim of this study was to assess and compare anti-melanoma activity of the two benzoquinones. Cytotoxicity of both compounds towards different melanoma cell lines (A375, HTB140, WM793) and selectivity with respect to normal keratinocytes (HaCaT) were investigated. Furthermore, interactions with a reference chemotherapeutic, doxorubicine, were assessed. Finally, analysis of anti-inflammatory, antioxidant and anti-tyrosinase activities of both benzoquinones was conducted as well. Rapanone showed selective and higher than doxorubicine cytotoxic potential against primary melanoma cell line, WM793. Although embelin was also highly cytotoxic, its selectivity was much poorer. Interestingly, in case of HTB140 and HaCaT cell lines a combination of each benzoquinone with doxorubicine potentiated the cytotoxic potential in a synergistic manner. Embelin revealed higher albumin anti-denaturation potential than rapanone but lower than diclofenac sodium. Anti-hyaluronidase effect of both benzoquinones was higher than quercetin. Both compounds showed antioxidant potential although significantly lower as compared to vitamin C. Finally, neither embelin nor rapanone had any inhibitory effect on tyrosinase.
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Affiliation(s)
- Dagmara Wróbel-Biedrawa
- Department of Pharmacognosy, Pharmaceutical Faculty, Medical College, Jagiellonian University, Medyczna 9, 30-688 Cracow, Poland.
| | - Karolina Grabowska
- Department of Pharmacognosy, Pharmaceutical Faculty, Medical College, Jagiellonian University, Medyczna 9, 30-688 Cracow, Poland.
| | - Agnieszka Galanty
- Department of Pharmacognosy, Pharmaceutical Faculty, Medical College, Jagiellonian University, Medyczna 9, 30-688 Cracow, Poland.
| | - Danuta Sobolewska
- Department of Pharmacognosy, Pharmaceutical Faculty, Medical College, Jagiellonian University, Medyczna 9, 30-688 Cracow, Poland.
| | - Paweł Żmudzki
- Department of Medicinal Chemistry, Pharmaceutical Faculty, Medical College, Jagiellonian University, Medyczna 9, 30-688 Cracow, Poland.
| | - Irma Podolak
- Department of Pharmacognosy, Pharmaceutical Faculty, Medical College, Jagiellonian University, Medyczna 9, 30-688 Cracow, Poland.
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18
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Ramakrishnan P, Loh WM, Gopinath SC, Bonam SR, Fareez IM, Mac Guad R, Sim MS, Wu YS. Selective phytochemicals targeting pancreatic stellate cells as new anti-fibrotic agents for chronic pancreatitis and pancreatic cancer. Acta Pharm Sin B 2020; 10:399-413. [PMID: 32140388 PMCID: PMC7049637 DOI: 10.1016/j.apsb.2019.11.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 09/23/2019] [Accepted: 10/29/2019] [Indexed: 12/15/2022] Open
Abstract
Activated pancreatic stellate cells (PSCs) have been widely accepted as a key precursor of excessive pancreatic fibrosis, which is a crucial hallmark of chronic pancreatitis (CP) and its formidable associated disease, pancreatic cancer (PC). Hence, anti-fibrotic therapy has been identified as a novel therapeutic strategy for treating CP and PC by targeting PSCs. Most of the anti-fibrotic agents have been limited to phase I/II clinical trials involving vitamin analogs, which are abundant in medicinal plants and have proved to be promising for clinical application. The use of phytomedicines, as new anti-fibrotic agents, has been applied to a variety of complementary and alternative approaches. The aim of this review was to present a focused update on the selective new potential anti-fibrotic agents, including curcumin, resveratrol, rhein, emodin, green tea catechin derivatives, metformin, eruberin A, and ellagic acid, in combating PSC in CP and PC models. It aimed to describe the mechanism(s) of the phytochemicals used, either alone or in combination, and the associated molecular targets. Most of them were tested in PC models with similar mechanism of actions, and curcumin was tested intensively. Future research may explore the issues of bioavailability, drug design, and nano-formulation, in order to achieve successful clinical outcomes with promising activity and tolerability.
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Affiliation(s)
- Puvanesswaray Ramakrishnan
- Ageing and Age-Associated Disorders Research Group, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Wei Mee Loh
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Subash C.B. Gopinath
- School of Bioprocess Engineering, Universiti Malaysia Perlis, Arau 02600, Malaysia
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia
| | - Srinivasa Reddy Bonam
- UMR 7242, CNRS-University of Strasbourg, Biotechnology and Cell Signaling/Laboratory of Excellence Medalis, Illkirch 67400, France
| | - Ismail M. Fareez
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, MAHSA University, Selangor 42610, Malaysia
| | - Rhanye Mac Guad
- Department of Biomedical Science and Therapeutics, Faculty of Medicine and Health Science, Universiti Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Maw Shin Sim
- Department of Pharmaceutical Life Sciences, Faculty of Pharmacy, University of Malaya, Kuala Lumpur 50603, Malaysia
- Corresponding authors. Tel./fax: +60 3 51022709 (Yuan Seng Wu); +60 3 79675749 (Maw Shin Sim).
| | - Yuan Seng Wu
- Department of Biochemistry, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Selangor 42610, Malaysia
- Corresponding authors. Tel./fax: +60 3 51022709 (Yuan Seng Wu); +60 3 79675749 (Maw Shin Sim).
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19
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Ondee S, Sithisarn P, Mangmool S, Rojsanga P. Chemical Standardization and Anti-Proliferative Activity of Ardisia elliptica Fruit against the HCT116 Human Colon Cancer Cell Line. Molecules 2020; 25:molecules25051023. [PMID: 32106546 PMCID: PMC7179138 DOI: 10.3390/molecules25051023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/02/2020] [Accepted: 02/21/2020] [Indexed: 12/17/2022] Open
Abstract
The present study is intended to carry out the chemical standardization and evaluation of the anti-proliferative activity of A. elliptica fruit extract. A. elliptica fruit powder was extracted with ethanol. The obtained extract was assessed for total phenolic content using the Folin-Ciocalteu method. Moreover, a simple, accurate, and precise reversed phase high-performance liquid chromatographic method was developed and validated to determine the embelin content of A. elliptica fruit extract. Then, the extract and embelin were investigated for their anti-proliferative effect against HCT-116 cells. Finally, the mechanisms of inhibition of the extract and embelin on the mRNA expression of pro-apoptotic genes Bad, Bax, and Caspase-8 and anti-apoptotic genes c-IAP1, Mcl-1, and XIAP were determined by real-time qRT-PCR. The phenolic content and embelin content of the extract were 5.20 ± 0.01 g of gallic acid equivalent per 100 g of dried fruit (g% GAE) and 5.57 ± 0.56 mg/g of extract, respectively. The extract and embelin showed strong anti-proliferative effects on HCT-116 cells with 50% inhibition concentration (IC50) values of 19.16 ± 1.09 µg/mL and 25.93 ± 1.75 µg/mL, respectively. The A. elliptica extract exhibited a significant increase in the mRNA level of Bad, Bax, and Caspase-8 and a significant decrease in c-IAP1, Mcl-1, and XIAP. Embelin showed a significant decrease in Mcl-1 and XIAP.
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Affiliation(s)
- Suchanuch Ondee
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand;
| | - Pongtip Sithisarn
- Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand;
| | - Supachoke Mangmool
- Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
| | - Piyanuch Rojsanga
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand;
- Correspondence: ; Tel.: +668-9206-2499
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20
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Li JY, Chen RJ, Huang LT, Lee TY, Lu WJ, Lin KH. Embelin as a Novel Inhibitor of PKC in the Prevention of Platelet Activation and Thrombus Formation. J Clin Med 2019; 8:jcm8101724. [PMID: 31635287 PMCID: PMC6832570 DOI: 10.3390/jcm8101724] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/09/2019] [Accepted: 10/16/2019] [Indexed: 12/25/2022] Open
Abstract
Embelin is a quinone derivative and found in the fruits of Embelia ribes Burm.f. Embelin has been identified as a small molecular inhibitor of X-chromosome-linked inhibitor of apoptosis proteins, and has multiple biological activities, including antioxidation, anti-inflammation, and antitumor effects. However, the effect of embelin in platelets remains unclear. Thus, this study investigated the antiplatelet mechanism of embelin. Our data revealed that embelin could inhibit platelet aggregation induced by various agonists, including the protein kinase C (PKC) activator phorbol 12,13-dibutyrate (PDBu). Embelin, as well as the PKC inhibitor Ro 31-8220, markedly reduced PDBu-mediated phosphorylation of the PKC substrate, suggesting that embelin may be a PKC inhibitor for platelets. Embelin could block PKC downstream signaling and events, including the inhibition of protein kinase B and mitogen-activated protein kinase activation, granule release, and glycoprotein IIbIIIa activation. Moreover, embelin could delay thrombus formation in the mesenteric microvessels of mice, but did not significantly affect the tail bleeding time. In conclusion, we demonstrated that embelin is a PKC inhibitor and possesses antiplatelet and antithrombotic effects. The further analysis is necessary to more accurately determine clinical therapeutic potential of embelin in all clinical thromboembolic events with disturbance of thrombocyte function.
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Affiliation(s)
- Jiun Yi Li
- Department of Medicine, Mackay Medical College, New Taipei City 252, Taiwan.
- Department of Surgery, MacKay Memorial Hospital, Taipei 104, Taiwan.
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Ray Jade Chen
- Division of General Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei 110, Taiwan.
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Li Ting Huang
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Tzu Yin Lee
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Wan Jung Lu
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
- Department of Medical Research, Taipei Medical University Hospital, Taipei 110, Taiwan.
- Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei 110, Taiwan.
| | - Kuan Hung Lin
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City 252, Taiwan.
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21
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Fangchinoline, a Bisbenzylisoquinoline Alkaloid can Modulate Cytokine-Impelled Apoptosis via the Dual Regulation of NF-κB and AP-1 Pathways. Molecules 2019; 24:molecules24173127. [PMID: 31466313 PMCID: PMC6749215 DOI: 10.3390/molecules24173127] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 08/24/2019] [Accepted: 08/27/2019] [Indexed: 12/25/2022] Open
Abstract
Fangchinoline (FCN) derived from Stephaniae tetrandrine S. Moore can be employed to treat fever, inflammation, rheumatism arthralgia, edema, dysuria, athlete’s foot, and swollen wet sores. FCN can exhibit a plethora of anti-neoplastic effects although its precise mode of action still remains to be deciphered. Nuclear factor-κB (NF-κB) and activator protein-1 (AP-1) can closely regulate carcinogenesis and thus we analyzed the possible action of FCN may have on these two signaling cascades in tumor cells. The effect of FCN on NF-κB and AP-1 signaling cascades and its downstream functions was deciphered using diverse assays in both human chronic myeloid leukemia (KBM5) and multiple myeloma (U266). FCN attenuated growth of both leukemic and multiple myeloma cells and repressed NF-κB, and AP-1 activation through diverse mechanisms, including attenuation of phosphorylation of IκB kinase (IKK) and p65. Furthermore, FCN could also cause significant enhancement in TNFα-driven apoptosis as studied by various molecular techniques. Thus, FCN may exhibit potent anti-neoplastic effects by affecting diverse oncogenic pathways and may be employed as pro-apoptotic agent against various malignancies.
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22
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New alkylresorcinols from the fruits of Embelia ribes. Fitoterapia 2018; 128:66-72. [DOI: 10.1016/j.fitote.2018.04.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/20/2018] [Accepted: 04/27/2018] [Indexed: 01/16/2023]
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23
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Avisetti DR, Amireddy N, Kalivendi SV. The mitochondrial effects of embelin are independent of its MAP kinase regulation: Role of p53 in conferring selectivity towards cancer cells. Mitochondrion 2018; 46:158-163. [PMID: 29715507 DOI: 10.1016/j.mito.2018.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 04/11/2018] [Accepted: 04/26/2018] [Indexed: 10/17/2022]
Abstract
Amongst various therapeutic properties of the natural product embelin, its anti-cancer effects are being extensively studied. We observed that, embelin induced apoptosis in A549 cells lacking functional mitochondria (ρ0 cells) indicating that its mitochondrial effects are not primarily responsible for its anti-cancer activity. However, p38 mediated activation of p53 was found to play a pivotal role in governing the apoptotic activity of embelin due to the following observations: a time-dependent activation of p53 and apoptosis by embelin; selective inhibition of p38 inhibited embelin-induced p53 levels. Overall, therapeutic strategies involving embelin and activators of p38 MAP kinase may improve the selective targeting of cancer cells.
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Affiliation(s)
- Deepa R Avisetti
- Biochemistry Laboratory, Department of Applied Biology and Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology, , Uppal Road, Hyderabad 500007, T.S., India
| | - Niharika Amireddy
- Biochemistry Laboratory, Department of Applied Biology and Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology, , Uppal Road, Hyderabad 500007, T.S., India
| | - Shasi V Kalivendi
- Biochemistry Laboratory, Department of Applied Biology and Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology, , Uppal Road, Hyderabad 500007, T.S., India.
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24
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Sharma A, Kaur N, Sharma S, Sharma A, Rathore MS, Ajay K, Mishra N. Embelin-loaded guar gum microparticles for the management of ulcerative colitis. J Microencapsul 2018; 35:181-191. [DOI: 10.1080/02652048.2018.1452991] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Ankita Sharma
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, India
| | - Navneet Kaur
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, India
| | - Saurabh Sharma
- Department of Pharmacology, School of Pharmaceutical Sciences, CT University, Ludhiana, Punjab, India
| | - Amit Sharma
- Department of Pharmacy Practice, ISF College of Pharmacy, Moga, Punjab, India
| | - M. S. Rathore
- Department of Pharmacy Practice, ISF College of Pharmacy, Moga, Punjab, India
| | - Kumar Ajay
- Government Pharmacy Institute, Agamkuan, Patna, India
| | - Neeraj Mishra
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, India
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25
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Hossan MS, Fatima A, Rahmatullah M, Khoo TJ, Nissapatorn V, Galochkina AV, Slita AV, Shtro AA, Nikolaeva Y, Zarubaev VV, Wiart C. Antiviral activity of Embelia ribes Burm. f. against influenza virus in vitro. Arch Virol 2018; 163:2121-2131. [PMID: 29633078 DOI: 10.1007/s00705-018-3842-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 03/31/2018] [Indexed: 11/28/2022]
Abstract
Viral respiratory infections are raising serious concern globally. Asian medicinal plants could be useful in improving the current treatment strategies for influenza. The present study examines the activity of five plants from Bangladesh against influenza virus. MDCK cells infected with influenza virus A/Puerto Rico/8/34 (H1N1) were treated with increasing concentrations of ethyl acetate extracts, and their cytotoxicity (CC50), virus-inhibiting activity (IC50), and selectivity index (SI) were calculated. The ethyl acetate extract of fruits of Embelia ribes Burm. f. (Myrsinaceae) had the highest antiviral activity, with an IC50 of 0.2 µg/mL and a SI of 32. Its major constituent, embelin, was further isolated and tested against the same virus. Embelin demonstrated antiviral activity, with an IC50 of 0.3 µM and an SI of 10. Time-of-addition experiments revealed that embelin was most effective when added at early stages of the viral life cycle (0-1 h postinfection). Embelin was further evaluated against a panel of influenza viruses including influenza A and B viruses that were susceptible or resistant to rimantadine and oseltamivir. Among the viruses tested, avian influenza virus A/mallard/Pennsylvania/10218/84 (H5N2) was the most susceptible to embelin (SI = 31), while A/Aichi/2/68 (H3N2) virus was the most resistant (SI = 5). In silico molecular docking showed that the binding site for embelin is located in the receptor-binding domain of the viral hemagglutinin. The results of this study provide evidence that E. ribes can be used for development of a novel alternative anti-influenza plant-based agent.
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Affiliation(s)
- Md Shahadat Hossan
- School of Pharmacy, University of Nottingham, Malaysia Campus, 43500, Semenyih, Malaysia
| | - Ayesha Fatima
- Faculty of Pharmacy, Quest International University, 30250, Ipoh, Malaysia
| | - Mohammed Rahmatullah
- Department of Pharmacy, Faculty of Life Science, University of Development Alternative (UODA), Dhaka, 1207, Bangladesh
| | - Teng Jin Khoo
- School of Pharmacy, University of Nottingham, Malaysia Campus, 43500, Semenyih, Malaysia
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, 80161, Thailand
| | - Anastasia V Galochkina
- Pasteur Institute of Epidemiology and Microbiology, 14 Mira str, 197101, St. Petersburg, Russia
| | - Alexander V Slita
- Pasteur Institute of Epidemiology and Microbiology, 14 Mira str, 197101, St. Petersburg, Russia
| | - Anna A Shtro
- Influenza Research Institute, 15/17 prof. Popova str, 197376, St. Petersburg, Russia
| | - Yulia Nikolaeva
- Influenza Research Institute, 15/17 prof. Popova str, 197376, St. Petersburg, Russia
| | - Vladimir V Zarubaev
- Pasteur Institute of Epidemiology and Microbiology, 14 Mira str, 197101, St. Petersburg, Russia.
| | - Christophe Wiart
- School of Pharmacy, University of Nottingham, Malaysia Campus, 43500, Semenyih, Malaysia.
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Prabhu KS, Achkar IW, Kuttikrishnan S, Akhtar S, Khan AQ, Siveen KS, Uddin S. Embelin: a benzoquinone possesses therapeutic potential for the treatment of human cancer. Future Med Chem 2018; 10:961-976. [PMID: 29620447 DOI: 10.4155/fmc-2017-0198] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2023] Open
Abstract
Natural products have been gaining recognition and are becoming a significant part of research in the area of drug development and discovery. Phytochemicals derived from these sources have been comprehensively studied and have displayed a wide range of activities against many fatal diseases including cancer. One such product that has gained recognition from its pharmacological properties and nontoxic nature is embelin, obtained from Embelia ribes. Amid all the vivid pharmacological activities, embelin has gained its prominence in the area of cancer research. Embelin binds to the BIR3 domain of XIAP, preventing the association of XIAP and caspase-9 resulting in the suppression of cell growth, proliferation and migration of various types of cancer cells. Furthermore, embelin modulates anti-apoptotic pathways by suppressing the activity of NF-κB, PI3-kinase/AKT, JAK/STAT pathway - among others. The present review summarizes the various reported effects of embelin on different types of cancer cells and highlights the cellular mechanisms of action.
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Affiliation(s)
- Kirti S Prabhu
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Iman W Achkar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Shilpa Kuttikrishnan
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Sabah Akhtar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Abdul Q Khan
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Kodapully S Siveen
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Shahab Uddin
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
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Ko JH, Lee SG, Yang WM, Um JY, Sethi G, Mishra S, Shanmugam MK, Ahn KS. The Application of Embelin for Cancer Prevention and Therapy. Molecules 2018. [PMID: 29522451 PMCID: PMC6017120 DOI: 10.3390/molecules23030621] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Embelin is a naturally-occurring benzoquinone compound that has been shown to possess many biological properties relevant to human cancer prevention and treatment, and increasing evidence indicates that embelin may modulate various characteristic hallmarks of tumor cells. This review summarizes the information related to the various oncogenic pathways that mediate embelin-induced cell death in multiple cancer cells. The mechanisms of the action of embelin are numerous, and most of them induce apoptotic cell death that may be intrinsic or extrinsic, and modulate the NF-κB, p53, PI3K/AKT, and STAT3 signaling pathways. Embelin also induces autophagy in cancer cells; however, these autophagic cell-death mechanisms of embelin have been less reported than the apoptotic ones. Recently, several autophagy-inducing agents have been used in the treatment of different human cancers, although they require further exploration before being transferred from the bench to the clinic. Therefore, embelin could be used as a potential agent for cancer therapy.
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Affiliation(s)
- Jeong-Hyeon Ko
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Seok-Geun Lee
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Woong Mo Yang
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Jae-Young Um
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Gautam Sethi
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam.
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam.
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore.
| | - Srishti Mishra
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore.
| | - Muthu K Shanmugam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore.
| | - Kwang Seok Ahn
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
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Subramanian L, Leema M, Pradeep NS, Joy B, Pillai ZS. Synthesis and Antibacterial Screening of Novel Derivatives of Embelin. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1757-899x/310/1/012115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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NF-κB/twist mediated regulation of colonic inflammation by lupeol in abating dextran sodium sulfate induced colitis in mice. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.12.048] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Ning NZ, Liu X, Chen F, Zhou P, Hu L, Huang J, Li Z, Huang J, Li T, Wang H. Embelin Restores Carbapenem Efficacy against NDM-1-Positive Pathogens. Front Microbiol 2018; 9:71. [PMID: 29422890 PMCID: PMC5789148 DOI: 10.3389/fmicb.2018.00071] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 01/11/2018] [Indexed: 01/21/2023] Open
Abstract
The emergence and spread of carbapenemase in Gram-negative pathogens poses an enormous threat to global public health. New Delhi metallo-β-lactamase-1 (NDM-1) inactivates nearly every class of β-lactam antibiotics, including carbapenem; however, there is no clinically useful NDM-1 inhibitor. Embelin, an important ingredient in traditional herbal medicine, has anti-tumor effects. The current study is the first to discover and examine the inhibitory activity of embelin against β-lactamase NDM-1. The IC50 of embelin was 2.1 ± 0.2 μM when tested against NDM-1 carbapenemase. Most regions of the embelin molecule were buried within NDM-1’s active site, and the hydroxyl group of embelin interacted directly with the metal ion Zn2+, as shown by molecular dynamic simulation. Systematic analysis of the antibacterial activities of embelin and antibiotics demonstrated that embelin restored meropenem activity against a panel of NDM-positive pathogens, such as Escherichia coli, Klebsiella pneumoniae, and Acinetobacter baumannii. Based on these results, embelin could be a promising carbapenem adjuvant candidate against NDM-1-producing bacterial strains.
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Affiliation(s)
- Nian-Zhi Ning
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xiong Liu
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Fanghong Chen
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Peng Zhou
- Key Laboratory for NeuroInformation of Ministry of Education, University of Electronic Science and Technology of China, Chengdu, China.,Center for Information in Biomedicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Lihong Hu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Jian Huang
- Key Laboratory for NeuroInformation of Ministry of Education, University of Electronic Science and Technology of China, Chengdu, China.,Center for Information in Biomedicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhan Li
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Jie Huang
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Tao Li
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Hui Wang
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
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Lee Y, Park B, Park H, Yu S, Kang H, Kim I. XIAP inhibitor embelin induces autophagic and apoptotic cell death in human oral squamous cell carcinoma cells. ENVIRONMENTAL TOXICOLOGY 2017; 32:2371-2378. [PMID: 28722333 PMCID: PMC6472881 DOI: 10.1002/tox.22450] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 06/29/2017] [Accepted: 07/02/2017] [Indexed: 05/31/2023]
Abstract
Embelin is an active ingredient of traditional herbal remedies for cancer and other diseases. Recently, it has been suggested that autophagy may play an important role in cancer therapy. However, little data are available regarding the role of autophagy in oral cancers. Therefore, we conducted this study to examine whether Embelin modulates autophagy in Ca9-22. Our results showed that Embelin had anticancer activity against the Ca9-22 human tongue squamous cell, and we observed that autophagic vacuoles were formed by MDC and AO. We also analyzed Embelin-treated Ca9-22 cells for the presence of biochemical markers and found that it directly affected the conversion of LC3-II, the degradation of p62/SQSTM1, full-length cleavage formation of ATG5-ATG12 complex and Beline-1, and caspase activation. Rescue experiments using an autophagy inhibitor showed Embelin-induced cell death in Ca9-22, confirming that autophagy acts as a pro-death signal. Furthermore, Embelin exhibited anticancer activity against Ca9-22 via both autophagy and apoptosis. These findings suggest that Embelin may potentially contribute to oral cancer treatment and provide useful information for the development of a new therapeutic agent.
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Affiliation(s)
- You‐Jin Lee
- Department of Oral
AnatomySchool of Dentistry, Pusan National University, Busandaehak‐ro, 49,
Mulguem‐eupYangsan‐siGyeongsangnam‐do50612South Korea
| | - Bong‐Soo Park
- Department of Oral
AnatomySchool of Dentistry, Pusan National University, Busandaehak‐ro, 49,
Mulguem‐eupYangsan‐siGyeongsangnam‐do50612South Korea
| | - Hae‐Ryoun Park
- Department of Oral
PathologySchool of Dentistry, Pusan National University, Busandaehak‐ro, 49,
Mulguem‐eupYangsan‐siGyeongsangnam‐do50612South Korea
| | - Su‐Bin Yu
- Department of Oral
AnatomySchool of Dentistry, Pusan National University, Busandaehak‐ro, 49,
Mulguem‐eupYangsan‐siGyeongsangnam‐do50612South Korea
- BK21 PLUS Project, School of
DentistryPusan National University, Busandaehak‐ro, 49, Mulguem‐eupYangsan‐siGyeongsangnam‐do50612South Korea
| | - Hae‐Mi Kang
- Department of Oral
AnatomySchool of Dentistry, Pusan National University, Busandaehak‐ro, 49,
Mulguem‐eupYangsan‐siGyeongsangnam‐do50612South Korea
- BK21 PLUS Project, School of
DentistryPusan National University, Busandaehak‐ro, 49, Mulguem‐eupYangsan‐siGyeongsangnam‐do50612South Korea
| | - In‐Ryoung Kim
- Department of Oral
AnatomySchool of Dentistry, Pusan National University, Busandaehak‐ro, 49,
Mulguem‐eupYangsan‐siGyeongsangnam‐do50612South Korea
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32
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Prabhu KS, Siveen KS, Kuttikrishnan S, Iskandarani A, Tsakou M, Achkar IW, Therachiyil L, Krishnankutty R, Parray A, Kulinski M, Merhi M, Dermime S, Mohammad RM, Uddin S. Targeting of X-linked inhibitor of apoptosis protein and PI3-kinase/AKT signaling by embelin suppresses growth of leukemic cells. PLoS One 2017; 12:e0180895. [PMID: 28704451 PMCID: PMC5509148 DOI: 10.1371/journal.pone.0180895] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 06/22/2017] [Indexed: 12/15/2022] Open
Abstract
The X-linked inhibitor of apoptosis (XIAP) is a viable molecular target for anticancer drugs that overcome apoptosis-resistance of malignant cells. XIAP is an inhibitor of apoptosis, mediating through its association with BIR3 domain of caspase 9. Embelin, a quinone derivative isolated from the Embelia ribes plant, has been shown to exhibit chemopreventive, anti-inflammatory, and apoptotic activities via inhibiting XIAP activity. In this study, we found that embelin causes a dose-dependent suppression of proliferation in leukemic cell lines K562 and U937. Embelin mediated inhibition of proliferation correlates with induction of apoptosis. Furthermore, embelin treatment causes loss of mitochondrial membrane potential and release of cytochrome c, resulting in subsequent activation of caspase-3 followed by polyadenosin-5’-diphosphate-ribose polymerase (PARP) cleavage. In addition, embelin treatment of leukemic cells results in a decrease of constitutive phosphorylations/activation level of AKT and downregulation of XIAP. Gene silencing of XIAP and AKT expression showed a link between XIAP expression and activated AKT in leukemic cells. Interestingly, targeting of XIAP and PI3-kinase/AKT signaling augmented inhibition of proliferation and induction of apoptosis in leukemic cells. Altogether these findings raise the possibility that embelin alone or in combination with inhibitors of PI3-kinase/AKT pathway may have therapeutic usage in leukemia and possibly other malignancies with up-regulated XIAP pathway.
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Affiliation(s)
- Kirti S. Prabhu
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Kodappully S. Siveen
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Shilpa Kuttikrishnan
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Ahmad Iskandarani
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Magdalini Tsakou
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Iman W. Achkar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Lubna Therachiyil
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Roopesh Krishnankutty
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Aijaz Parray
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Michal Kulinski
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Maysaloun Merhi
- Translational Cancer Research Facility, National Center for Cancer Care and Research (NCCCR), Hamad Medical Corporation, Doha, State of Qatar
| | - Said Dermime
- Translational Cancer Research Facility, National Center for Cancer Care and Research (NCCCR), Hamad Medical Corporation, Doha, State of Qatar
| | - Ramzi M. Mohammad
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
| | - Shahab Uddin
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, State of Qatar
- * E-mail:
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Cortez Tornello PR, Feresin GE, Tapia A, Dzieciuch M, Cuadrado TR, Abraham GA. Effect of processing techniques on new poly(ε-caprolactone)-embelin microparticles of biomedical interest. ADVANCES IN POLYMER TECHNOLOGY 2017. [DOI: 10.1002/adv.21814] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pablo R. Cortez Tornello
- Research Institute of Materials Science and Technology; INTEMA (UNMdP-CONICET); Mar del Plata Argentina
| | - Gabriela E. Feresin
- Instituto de Biotecnología; Facultad de Ingeniería; Universidad Nacional de San Juan; San Juan Argentina
| | - Alejandro Tapia
- Instituto de Biotecnología; Facultad de Ingeniería; Universidad Nacional de San Juan; San Juan Argentina
| | - Monika Dzieciuch
- Nanotechnology of Polymers and Biomaterials Team; Department of Chemistry; Jagiellonian University; Cracow Poland
| | - Teresita R. Cuadrado
- Research Institute of Materials Science and Technology; INTEMA (UNMdP-CONICET); Mar del Plata Argentina
| | - Gustavo A. Abraham
- Research Institute of Materials Science and Technology; INTEMA (UNMdP-CONICET); Mar del Plata Argentina
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Kundap UP, Bhuvanendran S, Kumari Y, Othman I, Shaikh MF. Plant Derived Phytocompound, Embelin in CNS Disorders: A Systematic Review. Front Pharmacol 2017; 8:76. [PMID: 28289385 PMCID: PMC5326771 DOI: 10.3389/fphar.2017.00076] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 02/07/2017] [Indexed: 01/02/2023] Open
Abstract
A Central nervous system (CNS) disease is the one which affects either the spinal cord or brain and causing neurological or psychiatric complications. During the nineteenth century, modern medicines have occupied the therapy for many ailments and are widely used these days. Herbal medicines have often maintained popularity for historical and cultural reasons and also considered safer as they originate from natural sources. Embelin is a plant-based benzoquinone which is the major active constituent of the fruits of Embelia ribes Burm. It is an Indo-Malaysian species, extensively used in various traditional medicine systems for treating various diseases. Several natural products including quinone derivatives, which are considered to possess better safety and efficacy profile, are known for their CNS related activity. The bright orange hydroxybenzoquinone embelin-rich fruits of E. ribes have become popular in ethnomedicine. The present systematic review summarizes the effects of embelin on central nervous system and related diseases. A PRISMA model for systematic review was utilized for search. Various electronic databases such as Pubmed, Springer, Scopus, ScienceDirect, and Google Scholar were searched between January 2000 and February 2016. Based on the search criteria for the literature, 13 qualified articles were selected and discussed in this review. The results of the report showed that there is a lack of translational research and not a single study was found in human. This report gives embelin a further way to be explored in clinical trials for its safety and efficacy.
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Affiliation(s)
- Uday P Kundap
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia Selangor, Malaysia
| | - Saatheeyavaane Bhuvanendran
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia Selangor, Malaysia
| | - Yatinesh Kumari
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia Selangor, Malaysia
| | - Iekhsan Othman
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia Selangor, Malaysia
| | - Mohd Farooq Shaikh
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia Selangor, Malaysia
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Bharathy N, Suriyamurthy S, Rao VK, Ow JR, Lim HJ, Chakraborty P, Vasudevan M, Dhamne CA, Chang KTE, Min VLK, Kundu TK, Taneja R. P/CAF mediates PAX3-FOXO1-dependent oncogenesis in alveolar rhabdomyosarcoma. J Pathol 2016; 240:269-281. [PMID: 27453350 DOI: 10.1002/path.4773] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 07/19/2016] [Accepted: 07/21/2016] [Indexed: 12/29/2022]
Abstract
Alveolar rhabdomyosarcoma (ARMS) is an aggressive paediatric cancer of skeletal muscle with poor prognosis. A PAX3-FOXO1 fusion protein acts as a driver of malignancy in ARMS by disrupting tightly coupled but mutually exclusive pathways of proliferation and differentiation. While PAX3-FOXO1 is an attractive therapeutic target, no current treatments are designed to block its oncogenic activity. The present work shows that the histone acetyltransferase P/CAF (KAT2B) is overexpressed in primary tumours from ARMS patients. Interestingly, in fusion-positive ARMS cell lines, P/CAF acetylates and stabilizes PAX3-FOXO1 rather than MyoD, a master regulator of muscle differentiation. Silencing P/CAF, or pharmacological inhibition of its acetyltransferase activity, down-regulates PAX3-FOXO1 levels concomitant with reduced proliferation and tumour burden in xenograft mouse models. Our studies identify a P/CAF-PAX3-FOXO1 signalling node that promotes oncogenesis and may contribute to MyoD dysfunction in ARMS. This work exemplifies the therapeutic potential of targeting chromatin-modifying enzymes to inhibit fusion oncoproteins that are a frequent event in sarcomas. Copyright © 2016 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Narendra Bharathy
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Sudha Suriyamurthy
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Vinay Kumar Rao
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jin Rong Ow
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Huey Jin Lim
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Payal Chakraborty
- Bionivid Technology Pvt Ltd, 401-4 AB Cross, 1st Main, Kasturi Nagar, Bangalore, India
| | - Madavan Vasudevan
- Bionivid Technology Pvt Ltd, 401-4 AB Cross, 1st Main, Kasturi Nagar, Bangalore, India
| | | | | | - Victor Lee Kwan Min
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tapas K Kundu
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India
| | - Reshma Taneja
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Nidhi, Dadwal A, Hallan SS, Sharma S, Mishra N. Development of enteric-coated microspheres of embelin for their beneficial pharmacological potential in ulcerative colitis. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:1-9. [PMID: 27388946 DOI: 10.1080/21691401.2016.1202258] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The aim of the present study is to develop embelin-loaded enteric-coated microspheres and investigate their pharmacological potential in acetic acid induced ulcerative colitis. The optimized formulation of embelin-loaded microspheres has shown significant sustained release of embelin. Further this formulation significantly reduced the ulcer activity score and oxidative stress, and attenuated the inflammatory changes. Thus it may be concluded that embelin-loaded enteric-coated microspheres have shown delayed release capacity than plain embelin and exerts colon ulcer protective effect in rats.
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Affiliation(s)
- Nidhi
- a Department of Pharmaceutics , I.S.F. College of Pharmacy , Moga , Punjab , India
| | - Ankita Dadwal
- a Department of Pharmaceutics , I.S.F. College of Pharmacy , Moga , Punjab , India
| | | | - Saurabh Sharma
- b Department of Pharmacology , I.S.F. College of Pharmacy , Moga , Punjab , India
| | - Neeraj Mishra
- a Department of Pharmaceutics , I.S.F. College of Pharmacy , Moga , Punjab , India
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37
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Milligan G, Shimpukade B, Ulven T, Hudson BD. Complex Pharmacology of Free Fatty Acid Receptors. Chem Rev 2016; 117:67-110. [PMID: 27299848 DOI: 10.1021/acs.chemrev.6b00056] [Citation(s) in RCA: 185] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
G protein-coupled receptors (GPCRs) are historically the most successful family of drug targets. In recent times it has become clear that the pharmacology of these receptors is far more complex than previously imagined. Understanding of the pharmacological regulation of GPCRs now extends beyond simple competitive agonism or antagonism by ligands interacting with the orthosteric binding site of the receptor to incorporate concepts of allosteric agonism, allosteric modulation, signaling bias, constitutive activity, and inverse agonism. Herein, we consider how evolving concepts of GPCR pharmacology have shaped understanding of the complex pharmacology of receptors that recognize and are activated by nonesterified or "free" fatty acids (FFAs). The FFA family of receptors is a recently deorphanized set of GPCRs, the members of which are now receiving substantial interest as novel targets for the treatment of metabolic and inflammatory diseases. Further understanding of the complex pharmacology of these receptors will be critical to unlocking their ultimate therapeutic potential.
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Affiliation(s)
- Graeme Milligan
- Centre for Translational Pharmacology, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow , Glasgow G12 8QQ, Scotland, United Kingdom
| | - Bharat Shimpukade
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense M, Denmark
| | - Trond Ulven
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense M, Denmark
| | - Brian D Hudson
- Centre for Translational Pharmacology, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow , Glasgow G12 8QQ, Scotland, United Kingdom
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XU CHANGLONG, ZHENG BO, PEI JIHUA, SHEN SUJIAN, WANG JIANZHANG. Embelin induces apoptosis of human gastric carcinoma through inhibition of p38 MAPK and NF-κB signaling pathways. Mol Med Rep 2016; 14:307-12. [DOI: 10.3892/mmr.2016.5232] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 03/11/2016] [Indexed: 11/05/2022] Open
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Zhou XL, Huang L, Cao J. Embelin Reduces Systemic Inflammation and Ameliorates Organ Injuries in Septic Rats Through Downregulating STAT3 and NF-κB Pathways. Inflammation 2016; 38:1556-62. [PMID: 25682469 DOI: 10.1007/s10753-015-0130-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Current evidence shows that the majority of the damage induced during sepsis is pursuant to induction and overproduction of endogenous cytokines. Embelin has been reported to suppress cytokine expressions in inflammatory disorders. The present study was designed to investigate the effects of embelin on cecal and ligation and puncture (CLP)-induced rat sepsis. Single-dose administration of embelin 1 h after surgery significantly improved survival of rats with CLP-induced sepsis. In addition, embelin treatment reduced the serum levels of pro-inflammatory cytokines including tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 and decreased organ inflammation and injuries. Moreover, embelin suppressed the activation of p65 subunit of nuclear factor-kappa B (NF-κB) and signal transducers and activators of transcription 3 (STAT3). Collectively, these results indicated that embelin ameliorates sepsis in rats through suppressing STAT3 and NF-κB pathways.
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Affiliation(s)
- Xian-Long Zhou
- Emergency Center, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, 430071, Hubei, China
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Lee H, Ko JH, Baek SH, Nam D, Lee SG, Lee J, Yang WM, Um JY, Kim SH, Shim BS, Ahn KS. Embelin Inhibits Invasion and Migration of MDA-MB-231 Breast Cancer Cells by Suppression of CXC Chemokine Receptor 4, Matrix Metalloproteinases-9/2, and Epithelial-Mesenchymal Transition. Phytother Res 2016; 30:1021-32. [DOI: 10.1002/ptr.5612] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/18/2016] [Accepted: 02/29/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Hanwool Lee
- Department of Cancer Preventive Material Development, Graduate School; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Jeong-Hyeon Ko
- Department of Cancer Preventive Material Development, Graduate School; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Seung Ho Baek
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Dongwoo Nam
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Seok Geun Lee
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Junhee Lee
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Woong Mo Yang
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Jae-Young Um
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Sung-Hoon Kim
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Bum Sang Shim
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Kwang Seok Ahn
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
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Shaikh A, Dhadde SB, Durg S, Veerapur VP, Badami S, Thippeswamy BS, Patil JS. Effect of Embelin Against Lipopolysaccharide-induced Sickness Behaviour in Mice. Phytother Res 2016; 30:815-22. [PMID: 26890475 DOI: 10.1002/ptr.5585] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 01/14/2016] [Accepted: 01/17/2016] [Indexed: 01/21/2023]
Affiliation(s)
- Ashique Shaikh
- Sree Siddaganga College of Pharmacy; Tumkur 572 102 India
| | - Shivsharan B. Dhadde
- Sree Siddaganga College of Pharmacy; Tumkur 572 102 India
- VT's Shivajirao S. Jondhle College of Pharmacy; Asangaon 421 601 India
| | | | - V. P. Veerapur
- Sree Siddaganga College of Pharmacy; Tumkur 572 102 India
| | - S. Badami
- Sree Siddaganga College of Pharmacy; Tumkur 572 102 India
| | - B. S. Thippeswamy
- Sree Siddaganga College of Pharmacy; Tumkur 572 102 India
- Department of Biomedical Science, College of Pharmacy; Shaqra University Al-Dawadmi; Kingdom of Saudi Arabia
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Shah P, Djisam R, Damulira H, Aganze A, Danquah M. Embelin inhibits proliferation, induces apoptosis and alters gene expression profiles in breast cancer cells. Pharmacol Rep 2016; 68:638-44. [PMID: 27031050 DOI: 10.1016/j.pharep.2016.01.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 01/04/2016] [Accepted: 01/05/2016] [Indexed: 01/21/2023]
Abstract
PURPOSE To investigate effect of embelin on proliferation, apoptosis and gene expression profile changes in breast cancer cells. METHODS Cell viability was determined by MTT assay and apoptosis assayed using flow cytometry. Differential expression of 84 genes commonly involved in breast cancer carcinogenesis was assessed by real-time PCR using the Human Breast Cancer RT(2) Profiler PCR Array. RESULTS MCF-7 and MDA-MB-231 cells were treated with embelin (0-25μM) for 24 and 96h. Embelin exhibited time and dose dependence in both cell lines and was more potent in inhibiting MDA-MB-231 cell proliferation compared to MCF-7 cells. IC50 for embelin in MDA-MB-231 cells was ∼4.45μM and 3.28μM at 24h and 96h, respectively. In contrast, IC50 for embelin in MCF-7 cells was ∼6.04μM and 4.51μM at 24h and 96h, respectively. Embelin (50μM) induced apoptosis and activated caspase 3 activity in both cell lines when exposed for 72h. Treatment of MDA-MB-231 cells with embelin (10μM) for 24h resulted in significant differential expression of 27 genes commonly involved in breast cancer carcinogenesis. CONCLUSIONS Our findings show that embelin inhibits cell proliferation, induces apoptosis and alters expression of breast cancer focused genes in MCF-7 and MDA-MB-231 cells. Based on RT(2)-PCR array analysis, embelin down-regulated expression of pivotal oncogenes. This knowledge could be beneficial in the development of effective embelin-based therapies for treating breast cancer.
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Affiliation(s)
- Priyank Shah
- Department of Pharmaceutical Sciences, Chicago State University, Chicago, USA
| | - Ransford Djisam
- Department of Pharmaceutical Sciences, Chicago State University, Chicago, USA
| | - Hamidah Damulira
- Department of Pharmaceutical Sciences, Chicago State University, Chicago, USA
| | - Alice Aganze
- Department of Pharmaceutical Sciences, Chicago State University, Chicago, USA
| | - Michael Danquah
- Department of Pharmaceutical Sciences, Chicago State University, Chicago, USA.
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Lu H, Wang J, Wang Y, Qiao L, Zhou Y. Embelin and Its Role in Chronic Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 928:397-418. [DOI: 10.1007/978-3-319-41334-1_16] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Targeting Mortalin by Embelin Causes Activation of Tumor Suppressor p53 and Deactivation of Metastatic Signaling in Human Breast Cancer Cells. PLoS One 2015; 10:e0138192. [PMID: 26376435 PMCID: PMC4574062 DOI: 10.1371/journal.pone.0138192] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 08/27/2015] [Indexed: 12/27/2022] Open
Abstract
Embelin, a natural quinone found in the fruits of Embelia ribes, is commonly used in Ayurvedic home medicine for a variety of therapeutic potentials including anti-inflammation, anti-fever, anti-bacteria and anti-cancer. Molecular mechanisms of these activities and cellular targets have not been clarified to-date. We demonstrate that the embelin inhibits mortalin-p53 interactions, and activates p53 protein in tumor cells. We provide bioinformatics, molecular docking and experimental evidence to the binding affinity of embelin with mortalin and p53. Binding of embelin with mortalin/p53 abrogates their complex resulted in nuclear translocation and transcriptional activation function of p53 causing growth arrest in cancer cells. Furthermore, analyses of growth factors and metastatic signaling using antibody membrane array revealed their downregulation in embelin-treated cells. We also found that the embelin causes transcriptional attenuation of mortalin and several other proteins involved in metastatic signaling in cancer cells. Based on these molecular dynamics and experimental data, it is concluded that the anticancer activity of embelin involves targeting of mortalin, activation of p53 and inactivation of metastatic signaling.
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Embelin-Induced Apoptosis of Human Prostate Cancer Cells Is Mediated through Modulation of Akt and β-Catenin Signaling. PLoS One 2015; 10:e0134760. [PMID: 26252009 PMCID: PMC4529160 DOI: 10.1371/journal.pone.0134760] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 07/13/2015] [Indexed: 12/11/2022] Open
Abstract
There is increasing evidence that embelin, an active component of Embelia ribes, induces apoptosis in human cancer cells, but the detailed mechanisms are still unclear. Here, we have investigated the effect of embelin on the growth of human prostate cancer cells. Embelin strongly inhibited cell growth especially in human prostate cancer cell lines, including PC3, DU145, LNCaP-LN3 and normal prostate epithelial cell, RWPE-1 compared to breast cancer (MDA-MB-231, MCF-7, and T47D), hepatoma (HepG2, Hep3B, and HuH-7), or choriocarcinoma (JEG-3). We observed that embelin induced apoptosis of PC3 cells in a time-dependent manner correlated with decreased expression of Bcl-2, Bcl-xL, and Mcl-1, increased translocation of Bax into mitochondria, and a reduction in the mitochondrial membrane potential. Furthermore, embelin induced voltage-dependent anion channel (VDAC) 1 expression and oligomerization, which may promote cytochrome c and AIF release. Because embelin was able to inhibit Akt activation and cyclooxygenase-2 expression, the effects on Wnt/ β-catenin signaling were determined. Embelin activated glycogen synthase kinase (GSK)-3β by preventing phosphorylation and suppressed β-catenin expression. Attenuation of β-catenin-mediated TCF transcriptional activity and gene transcription, such as cyclin D1, c-myc, and matrix metalloproteinase (MMP)-7, were shown in embelin-treated cells. The changes in β-catenin levels in response to embelin were blocked by lithium chloride, a GSK-3 inhibitor, indicating that embelin may decrease β-catenin expression via GSK-3β activation. Furthermore, exposure of PC3 cells to embelin resulted in a significant decrease in cell migration and invasion. In conclusion, these findings suggest that inhibition of Akt signaling and activation of GSK-3β partially contributes to the pro-apoptotic effect of embelin in prostate cancer cells.
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Yang Y, Hu R, Zhu K, Li Y, Li J, Miao M, Wang H, Yao K, Liu Z. [Involvement of oxidative stress in embelin-induced cell death in leukemia HL-60 cells]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2015; 36:465-8. [PMID: 26134009 PMCID: PMC7343066 DOI: 10.3760/cma.j.issn.0253-2727.2015.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To evaluate the effects of Embelin on HL-60 cells by the impact of oxidative stress on DNA double-strain breaks (DSBs). METHODS HL-60 cells were treated with Embelin in different concentration (3, 10, 30, 100, and 300 μg/ml) for 24 h, and inhibitory effects was examined by CCK-8 assay. Reactive oxygen species (ROS) levels were evaluated by flow cytometry using DCFH-DA. Comet assay was used to detect the extent of DSBs. RESULTS Embelin inhibited proliferation of HL-60 cells in a dose-dependent manner. At the concentration of 10, 30, 100, and 300 μg/ml, the inhibition rate was (12.74 ± 2.27)%, (23.49 ± 1.96)%, (30.30±1.89)%, and (57.55 ± 3.59)% (P<0.05). Embelin also lead to high level of intracellular ROS and deterioration of DNA damage (P<0.05). When HL-60 cells were pretreated with ROS scavenger N-acetyl-l-cysteine (NAC) for 2 h and then treated with 300 μg/ml Embelin for 24 h, the intracellular ROS level declined and DSBs relieved (P<0.05). Meanwhile, embelin-induced cell viability significantly declined to (32.75 ± 2.70)% (P<0.05). CONCLUSION Embelin induced the death of HL-60 cells by increasing the generation of intracellular oxidation and the oxidative stress, which drived the damage of DNA double-strand.
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Affiliation(s)
- Ying Yang
- Hematological Department of Shengjing Hospital Affiliated to China Medical University, Shenyang 110023, China
| | - Rong Hu
- Hematological Department of Shengjing Hospital Affiliated to China Medical University, Shenyang 110023, China
| | - Ke Zhu
- Hematological Department of Shengjing Hospital Affiliated to China Medical University, Shenyang 110023, China
| | - Yingchun Li
- Hematological Department of Shengjing Hospital Affiliated to China Medical University, Shenyang 110023, China
| | - Jia Li
- Hematological Department of Shengjing Hospital Affiliated to China Medical University, Shenyang 110023, China
| | - Miao Miao
- Hematological Department of Shengjing Hospital Affiliated to China Medical University, Shenyang 110023, China
| | - Hongtao Wang
- Hematological Department of Shengjing Hospital Affiliated to China Medical University, Shenyang 110023, China
| | - Kun Yao
- Hematological Department of Shengjing Hospital Affiliated to China Medical University, Shenyang 110023, China
| | - Zhuogang Liu
- Hematological Department of Shengjing Hospital Affiliated to China Medical University, Shenyang 110023, China
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Lin F, Ghislat G, Luo S, Renna M, Siddiqi F, Rubinsztein DC. XIAP and cIAP1 amplifications induce Beclin 1-dependent autophagy through NFκB activation. Hum Mol Genet 2015; 24:2899-913. [PMID: 25669656 PMCID: PMC4406300 DOI: 10.1093/hmg/ddv052] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 02/06/2015] [Indexed: 12/31/2022] Open
Abstract
Perturbations in autophagy and apoptosis are associated with cancer development. XIAP and cIAP1 are two members of the inhibitors of apoptosis protein family whose expression is elevated in different cancers. Here we report that XIAP and cIAP1 induce autophagy by upregulating the transcription of Beclin 1, an essential autophagy gene. The E3 ubiquitin ligase activity of both proteins activates NFκB signalling, leading to the direct binding of p65 to the promoter of Beclin 1 and to its transcriptional activation. This mechanism may be relevant in cancer cells, since we found increased levels of autophagy in different B-cell lymphoma-derived cell lines where XIAP is overexpressed and pharmacological inhibition of XIAP in these cell lines reduced autophagosome biogenesis. Thus, the chemotherapy resistance associated with XIAP and cIAP1 overexpression observed in several human cancers may be, at least in part, due to the Beclin 1-dependent autophagy activation by IAPs described in this study. In this context, the disruption of this increased autophagy might represent a valuable pharmacological tool to be included in combined anti-neoplastic therapies.
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Affiliation(s)
- Fang Lin
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge, Wellcome/MRC Building, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0XY, UK
| | - Ghita Ghislat
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge, Wellcome/MRC Building, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0XY, UK
| | - Shouqing Luo
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge, Wellcome/MRC Building, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0XY, UK
| | - Maurizio Renna
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge, Wellcome/MRC Building, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0XY, UK
| | - Farah Siddiqi
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge, Wellcome/MRC Building, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0XY, UK
| | - David C Rubinsztein
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge, Wellcome/MRC Building, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0XY, UK
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Coutelle O, Hornig-Do HT, Witt A, Andree M, Schiffmann LM, Piekarek M, Brinkmann K, Seeger JM, Liwschitz M, Miwa S, Hallek M, Krönke M, Trifunovic A, Eming SA, Wiesner RJ, Hacker UT, Kashkar H. Embelin inhibits endothelial mitochondrial respiration and impairs neoangiogenesis during tumor growth and wound healing. EMBO Mol Med 2014; 6:624-39. [PMID: 24648500 PMCID: PMC4023885 DOI: 10.1002/emmm.201303016] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
In the normal quiescent vasculature, only 0.01% of endothelial cells (ECs) are proliferating. However, this proportion increases dramatically following the angiogenic switch during tumor growth or wound healing. Recent evidence suggests that this angiogenic switch is accompanied by a metabolic switch. Here, we show that proliferating ECs increasingly depend on mitochondrial oxidative phosphorylation (OxPhos) for their increased energy demand. Under growth conditions, ECs consume three times more oxygen than quiescent ECs and work close to their respiratory limit. The increased utilization of the proton motif force leads to a reduced mitochondrial membrane potential in proliferating ECs and sensitizes to mitochondrial uncoupling. The benzoquinone embelin is a weak mitochondrial uncoupler that prevents neoangiogenesis during tumor growth and wound healing by exhausting the low respiratory reserve of proliferating ECs without adversely affecting quiescent ECs. We demonstrate that this can be exploited therapeutically by attenuating tumor growth in syngenic and xenograft mouse models. This novel metabolic targeting approach might be clinically valuable in controlling pathological neoangiogenesis while sparing normal vasculature and complementing cytostatic drugs in cancer treatment.
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Affiliation(s)
- Oliver Coutelle
- Department I for Internal Medicine, University of Cologne, Cologne, Germany
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Dhanjal JK, Nigam N, Sharma S, Chaudhary A, Kaul SC, Grover A, Wadhwa R. Embelin inhibits TNF-α converting enzyme and cancer cell metastasis: molecular dynamics and experimental evidence. BMC Cancer 2014; 14:775. [PMID: 25336399 PMCID: PMC4210574 DOI: 10.1186/1471-2407-14-775] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 10/07/2014] [Indexed: 12/22/2022] Open
Abstract
Background Embelin, a quinone derivative, is found in the fruits of Embelia ribes Burm (Myrsinaceae). It has been shown to have a variety of therapeutic potentials including anthelmintic, anti-tumor, anti-diabetic, anti-bacterial and anti-inflammation. Inflammation is an immunological response to external harmful stimuli and is regulated by an endogenous pyrogen and pleiotropic pro-inflammatory cytokine, tumor necrosis factor alpha (TNF-α). TNF-α production has been implicated in a variety of other human pathologies including neurodegeneration and cancer. Several studies have shown that the anti-inflammatory activity of embelin is mediated by reduction in TNF-α. The latter is synthesized as a membrane anchored protein (pro-TNF-α); the soluble component of pro-TNF-α is then released into the extracellular space by the action of a protease called TNF-α converting enzyme (TACE). TACE, hence, has been proposed as a therapeutic target for inflammation and cancer. Methods We used molecular docking and experimental approaches to investigate the docking potential and molecular effects of embelin to TACE and human cancer cell characteristics, respectively. Results We demonstrate that embelin is a potential inhibitor of TACE. Furthermore, in vitro studies revealed that it inhibits malignant properties of cancer cells through inactivation of metastatic signaling molecules including MMPs, VEGF and hnRNP-K in breast cancer cells. Conclusion Based on the molecular dynamics and experimental data, embelin is proposed as a natural anti-inflammatory and anticancer drug.
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Affiliation(s)
| | | | | | | | | | - Abhinav Grover
- School of Biotechnology, Jawaharlal Nehru University, New Delhi 110 067, India.
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The XIAP inhibitor Embelin enhances TRAIL-induced apoptosis in human leukemia cells by DR4 and DR5 upregulation. Tumour Biol 2014; 36:769-77. [PMID: 25293521 DOI: 10.1007/s13277-014-2702-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Accepted: 10/01/2014] [Indexed: 10/24/2022] Open
Abstract
The present study was designed to explore the effects of low-toxicity Embelin on TRAIL-induced apoptosis and its possible mechanism in human leukemia cells. Our study showed that low-toxicity Embelin enhanced TRAIL-induced apoptosis through DR4 and DR5 upregulation and caspase activation in HL-60 cells. Pan-caspase inhibitor Z-VAD-FMK inhibited cell apoptosis induced by TRAIL alone or combined with low-toxicity Embelin, which indicated the cytotoxic effect is mediated by caspase-dependent apoptosis. Although Embelin is an X chromosome-linked inhibitor-of-apoptosis protein (XIAP) inhibitor, an XIAP independent effect on cell death was detected in HL-60 cells exposed to low-toxicity Embelin and TRAIL. Low-toxicity Embelin upregulated DR4 and DR5 expression to enhance TRAIL-induced apoptosis. The sensitizing effects of Embelin on TRAIL-induced apoptosis were markedly attenuated when DR4/DR5 was knocked down. These data suggested that low-toxicity Embelin enhanced TRAIL-induced cell apoptosis through DR4 and DR5 upregulation, indicating that combination of low-toxicity Embelin and TRAIL may become as a potential antileukemia strategy.
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