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Kalaiarasi C, Sivanandam M, Suganya S, Christy G, Gonnade RG, Hathwar VR, Kumaradhas P. Investigation of bond topological and electrostatic properties of plumbagin molecule: An experimental and theoretical charge density study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhang R, Wang Z, You W, Zhou F, Guo Z, Qian K, Xiao Y, Wang X. Suppressive effects of plumbagin on the growth of human bladder cancer cells via PI3K/AKT/mTOR signaling pathways and EMT. Cancer Cell Int 2020; 20:520. [PMID: 33117085 PMCID: PMC7590591 DOI: 10.1186/s12935-020-01607-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023] Open
Abstract
Background Novel chemotherapeutic drugs with good anti-tumor activity are of pressing need for bladder cancer treatment. In this study, plumbagin (PL), a natural plant-derived drug extracted from Chinese herbals, was identified as a promising candidate for human bladder cancer (BCa) chemotherapy. Methods The anti-tumor activity of PL was evaluated using a series of in vitro experiments, such as MTT, transwell assay, flow cytometry, quantitative real-time PCR (qRT-PCR) and western blotting. We established xenograft tumors in nude mice by subcutaneous injection with the human bladder cancer T24 cells. Results The results showed that PL could inhibit the proliferation, migration and survival of BCa cells (T24 and UMUC3 cells) in a time- and dose-dependent way. We found PL promotes the cell cycle arrest and apoptosis by inhibiting PI3K/AKT/mTOR signaling pathway, which inhibits cell proliferation. In vivo, anti-tumor activity of PL was further investigated using a BCa cell xenograft mice model. To simulate clinical chemotherapy, the PL were intravenously injected with a dose of 10 mg/kg for 10 times. Compared with the blank control, the tumor weight in PL treated group decreased significantly from 0.57 ± 0.04 g to 0.21 ± 0.06 g (P < 0.001). Conclusions In our study. We found PL inhibits the proliferation of T24 and UMUC3 cells in vivo and in vitro, which may play a role through several downstream effectors of PI3K/AKT/mTOR signaling pathway to promote the cell cycle arrest and apoptosis. Meanwhile, we consider that PL may inhibit the migration of bladder cancer cells via EMT suppression and induce ROS generation to make cell apoptosis. This work screened out a novel chemotherapeutic drug (plumbagin) with relatively good anti-tumor activity, which possessed great potential in BCa chemotherapy.
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Affiliation(s)
- Renjie Zhang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Cancer Precision Diagnosis and Treatment and Translational Medicine, Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China
| | - Zijian Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Department of Biomedical Engineering, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071 People's Republic of China
| | - Wenjie You
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China
| | - Fengfang Zhou
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China
| | - Zicheng Guo
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, 445000 People's Republic of China
| | - Kaiyu Qian
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Research Center of Wuhan for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, 430071 People's Republic of China
| | - Yu Xiao
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Cancer Precision Diagnosis and Treatment and Translational Medicine, Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Research Center of Wuhan for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, 430071 People's Republic of China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Cancer Precision Diagnosis and Treatment and Translational Medicine, Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071 People's Republic of China.,Research Center of Wuhan for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, 430071 People's Republic of China
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Xin Y, Li S, Jiang Q, Hu F, He Y, Zhang J. Establishment of a Jaw Fibrosarcoma Patient-Derived Xenograft and Evaluation of the Tumor Suppression Efficacy of Plumbagin Against Jaw Fibrosarcoma. Front Oncol 2020; 10:1479. [PMID: 32974176 PMCID: PMC7481444 DOI: 10.3389/fonc.2020.01479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 07/10/2020] [Indexed: 11/17/2022] Open
Abstract
Background: Head and neck fibrosarcoma is a rare malignant tumor, accounting for about 1% of all head and neck tumors. It can also occur in the jaw bone, for which surgical resection is the main treatment but the recurrence rate is high and the prognosis is usually poor. Due to the lack of models mimicking the biological characteristics of the tumor, there is little progress in the research of the pathogenesis and treatment of fibrosarcoma. Therefore, there is an urgent need to explore a high-fidelity model that can reflect the biological characteristics of fibrosarcoma for the sake of improving the therapeutic outcome and prognosis, and preventing recurrence. Patient-derived xenografts (PDX) may more accurately reflect the human disease, and is an attractive platform to study disease biology and develop treatments and biomarkers. In this study we describe the establishment of jaw fibrosarcoma PDX models and compare PDX tumors to those of human origin. Methods: Tumor biopsies from a patient with jaw fibrosarcoma were implanted in immunodeficient mice. Primary and PDX tumors were characterized extensively by histology, immunohistochemistry and humanized identification. Based on the finding of our previous preliminary research that plumbagin had an anti-tumor effect against head and neck cancer, we used this model in the present study to evaluate the anti-tumor effect of plumbagin on jaw fibrosarcoma. Results: The established PDX model maintained the histological and immunohistochemical characteristics of the primary tumor. Plumbagin significantly inhibited the tumor growth in the jaw fibrosarcoma PDX model. Conclusion: We successfully established a PDX model of jaw fibrosarcoma and demonstrated that this PDX model preserved the important molecular characteristics of the human primary tumor, thus providing a powerful tool for treatment research and new drug development of jaw fibrosarcoma. In addition, plumbagin was found to have an inhibitory effect on the growth of PDX modeled jaw fibrosarcoma, which provides a preliminary research basis for its clinical application.
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Affiliation(s)
- Yuqi Xin
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Medical College, Nanchang University, Nanchang, China
| | - Shiya Li
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Medical College, Nanchang University, Nanchang, China
| | - Qingkun Jiang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Medical College, Nanchang University, Nanchang, China
| | - Fangling Hu
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yuanqiao He
- Laboratory Animal Science Center of Nanchang University, Nanchang, China.,Key Laboratory of Experimental Animals of Jiangxi, Nanchang, China.,Nanchang Royo Biotechnology, Nanchang, China
| | - Jie Zhang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
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Chen X, Yin L, Peng L, Liang Y, Lv H, Ma T. Synergistic Effect and Mechanism of Plumbagin with Gentamicin Against Carbapenem-Resistant Klebsiella pneumoniae. Infect Drug Resist 2020; 13:2751-2759. [PMID: 32884304 PMCID: PMC7432958 DOI: 10.2147/idr.s265753] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/24/2020] [Indexed: 11/30/2022] Open
Abstract
Background Aminoglycosides are one of a few susceptible antimicrobials available for carbapenem-resistant Enterobacteriaceae (CRE). However, the altered pharmacokinetics and increasing drug resistance of aminoglycosides will make them hardly effective if used in monotherapy. The purpose of this study was to identify herbal compounds that potentiate the antibacterial effect of gentamicin against carbapenem-resistant Klebsiella pneumoniae (CRKp) with gentamicin resistance and explore the action mechanisms. Methods A collection of 280 Chinese herbal compounds was screened for synergistic effect with gentamicin against CRKp by broth microdilution method according to the standard of the Clinical and Laboratory Standards Institute (CLSI). Intracellular gentamicin was measured by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The membrane potential was evaluated by BacLightTM Bacterial Membrane Potential Kit. Plumbagin-induced metabolite changes of vital metabolic pathways were measured by an optimized untargeted metabolomics method based on gas chromatography-mass spectrometer (GC/MS). Intracellular nicotinamide adenine dinucleotide (NADH) was detected via EnzyChrom NAD/NADH assay kit. Results We identified plumbagin to remarkably potentiate the antimicrobial activity of gentamicin against the CRKp with gentamicin resistance. Plumbagin at 100 μM could bring the MIC of gentamicin from >16 μg/mL to ~4 μg/mL despite its minimal inhibitory effect on the CRKp. A similar synergistic effect with gentamicin was also observed in an antibiotics-susceptible strain of Klebsiella pneumoniae. Compared with gentamicin monotreatment, the combination group showed a higher intracellular concentration of gentamicin and increased membrane potential in CRKp. Metabolomics analysis indicated remarkable increases of malate and α-ketoglutarate in the tricarboxylic acid (TCA) cycle in the CRKp upon plumbagin treatment. Further analysis revealed higher intracellular NADH concentration in plumbagin-treated CRKp, supporting increased proton-motive force (PMF) that facilitates aminoglycosides uptake. Conclusion Herbal compound plumbagin was identified to stimulate gentamicin uptake by CRKp via enhancing TCA efflux and PMF to achieve a synergistic antibacterial effect. Plumbagin may be used in combination with aminoglycosides for severe CRKp infection by potentiating their therapeutic efficacy and lowering dosage.
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Affiliation(s)
- Xiuli Chen
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, People's Republic of China
| | - Liyuan Yin
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, People's Republic of China
| | - Linxiu Peng
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, People's Republic of China
| | - Yanshan Liang
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, People's Republic of China
| | - Hang Lv
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, People's Republic of China
| | - Tonghui Ma
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, People's Republic of China
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Abstract
Significance: The primary function of NADPH oxidases (NOX1-5 and dual oxidases DUOX1/2) is to produce reactive oxygen species (ROS). If inadequately regulated, NOX-associated ROS can promote oxidative stress, aberrant signaling, and genomic instability. Correspondingly, NOX isoforms are known to be overexpressed in multiple malignancies, thus constituting potential therapeutic targets in cancer. Recent Advances: Multiple genetic studies aimed at suppressing the expression of NOX proteins in cellular and animal models of cancer have provided support for the notion that NOXs play a pro-tumorigenic role. Further, large drug screens and rational design efforts have yielded inhibitor compounds, such as the diphenylene iodonium (DPI) analog series developed by our group, with increased selectivity and potency over "first generation" NOX inhibitors such as apocynin and DPI. Critical Issues: The precise role of NOX enzymes in tumor biology remains poorly defined. The tumorigenic properties of NOXs vary with cancer type, and precise tools, such as selective inhibitors, are needed to deconvolute NOX contribution to cancer development. Most NOX inhibitors developed to date are unspecific, and/or their mechanistic and pharmacological characteristics are not well defined. A lack of high-resolution crystal structures for NOX functional domains has hindered the development of potent and selective inhibitors. Future Directions: In-depth studies of NOX interactions with the tumor microenvironment (e.g., cytokines, cell-surface antigens) will help identify new approaches for NOX inhibition in cancer.
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Affiliation(s)
- Mariam M Konaté
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Smitha Antony
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - James H Doroshow
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Bethesda, Maryland, USA.,Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
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Rauf A, Abu-Izneid T, Alhumaydhi FA, Muhammad N, Aljohani ASM, Naz S, Bawazeer S, Wadood A, Mubarak MS. In vivo analgesic, anti-inflammatory, and sedative activity and a molecular docking study of dinaphthodiospyrol G isolated from Diospyros lotus. BMC Complement Med Ther 2020; 20:237. [PMID: 32711536 PMCID: PMC7382863 DOI: 10.1186/s12906-020-03030-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/16/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Analgesic, anti-inflammatory, and sedative drugs are available with potential side effects such as peptic ulcer and addiction among other things. In this regard, research is underway to find safe, effective, and economical drugs free of these side effects. In this study, an isolated natural product from Diospyros lotus, was tested for the aforementioned bioactivities. OBJECTIVES To evaluate analgesic, anti-inflammatory, and sedative potential of D. lotus extracts in animal paradigms using BALB/c mice as experimental model. METHODS Analgesic, anti-inflammatory and sedative activities of dinaphthodiospyrol G (1) isolated from the chloroform fraction of D. lotus were evaluated using different experimental procedures. Anti-inflammatory effect was evaluated using the carrageenan and histamine-induced paw edema, whereas the antinociceptive effect was quantified by means of the hot plate analgesiometer. On the other hand, the sedative effect was determined using animal assay for screening the locomotors effects of compound 1. Compound 1 was also subjected to molecular modeling studies against cyclooxygenase enzymes. RESULTS Results from this investigation showed that the extract is devoid of anti-inflammatory and antinociceptive potentials but has a significant sedative effect, whereas the tested compound exhibited 55.23 and 78.34% attenuation in paw edema by carrageenan and histamine assays, respectively. A significant (p < 0.001) and dose-dependent antinociceptive and sedative effects were demonstrated by the isolated compound. Molecular docking and dynamics simulation studies of the isolated compound against cyclooxygenase enzyme indicated that compound 1 forms specific interactions with key residues in the active site of the target receptor, which validates the potential use of the isolated compound as cyclooxygenase inhibitor. CONCLUSIONS Compound 1 exhibited remarkable analgesic, anti-inflammatory, and sedative activities. These findings strongly justify the traditional use of D. lotus in the treatment of inflammation, pain, and insomnia.
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Affiliation(s)
- Abdur Rauf
- Department of Chemistry, University of Swabi Anbar KPK, Swabi, Pakistan.
| | - Tareq Abu-Izneid
- Department of Pharmaceutical Sciences, College of Pharmacy, Al Ain University, Al Ain, UAE
| | - Fahad A Alhumaydhi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Naveed Muhammad
- Department of Pharmacy, Abdul Wali Khan University Mardan, KPK, Mardan, Pakistan
| | - Abdullah S M Aljohani
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Saima Naz
- Department of Woman University, Mardan, Mardan KPK, Mardan, Pakistan
| | - Saud Bawazeer
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Umm Al-Qura University, P.O. Box 42, Makkah, Saudi Arabia
| | - Abdul Wadood
- Department of Chemistry, Abdul Wali Khan University Mardan KPK, Mardan, Pakistan
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Chrastina A, Welsh J, Rondeau G, Abedinpour P, Borgström P, Baron VT. Plumbagin‐Serum Albumin Interaction: Spectral, Electrochemical, Structure‐Binding Analysis, Antiproliferative and Cell Signaling Aspects with Implications for Anticancer Therapy. ChemMedChem 2020; 15:1338-1347. [DOI: 10.1002/cmdc.202000157] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Adrian Chrastina
- Proteogenomics Research Institute for Systems Medicine (PRISM) 505 Coast Blvd. South La Jolla CA 92037 USA
| | - John Welsh
- Vaccine Research Institute of San Diego (VRISD) 3030 Bunker Hill Street San Diego CA 92109 USA
| | - Gaelle Rondeau
- Vaccine Research Institute of San Diego (VRISD) 3030 Bunker Hill Street San Diego CA 92109 USA
| | - Parisa Abedinpour
- Proteogenomics Research Institute for Systems Medicine (PRISM) 505 Coast Blvd. South La Jolla CA 92037 USA
| | - Per Borgström
- Vaccine Research Institute of San Diego (VRISD) 3030 Bunker Hill Street San Diego CA 92109 USA
| | - Véronique T. Baron
- Vaccine Research Institute of San Diego (VRISD) 3030 Bunker Hill Street San Diego CA 92109 USA
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The battle against biofilm infections: juglone loaded nanoparticles as an anticandidal agent. J Biotechnol 2020; 316:17-26. [PMID: 32315688 DOI: 10.1016/j.jbiotec.2020.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 01/22/2020] [Accepted: 04/14/2020] [Indexed: 10/24/2022]
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Anti-inflammatory, Antibacterial, Toxicological Profile, and In Silico Studies of Dimeric Naphthoquinones from Diospyros lotus. BIOMED RESEARCH INTERNATIONAL 2020. [DOI: 10.1155/2020/7942549] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Diospyros lotus, also known as date-plum, belongs to the Ebenaceae family and is mostly recognized as a rootstock for D. kaki. Similar classes of naphthoquinones in D. lotus are investigated against cancer and inflammation and have antimicrobial, sedative, and analgesic properties. Six chemical constituents (1-6) were isolated from Diospyros lotus and tested for anti-inflammatory effects at the dose of 2.5 and 5 mg/kg, i.p., using carrageenan (1%, 0.05 ml)-induced paw edema. The maximum protection against carrageenan-induced edema was observed for compounds 1 and 2. Both studied compounds demonstrated significant anti-inflammatory effect after the 3rd hour of posttreatment. The maximum anti-inflammatory effect of compound 1 was 85.96%, while that of compound 2 was 81.44%, followed by compounds 5 and 6, which exhibited 80.11% and 82.45% effect, respectively. Similarly, histamine-induced inflammation was significantly antagonized by 1, 2, 5, and 6 with 87.99%, 82.18±1.8, 80.40±1.59, and 77.44% effects, respectively, at 5 mg/kg after the 2nd hour of posttreatment. The rest of the tested compounds did not show any significant effect as compared to the negative control. Interestingly, no toxicity was observed at higher doses. Moreover, the extracted compounds showed remarkable antibacterial activity against the Gram-positive bacteria and no effect against the Gram-negative bacteria. Docking studies on target cyclooxygenases showed that all the compounds established interactions with the key amino acid residues present in the additional pocket of COX-2. Hence, these compounds may act as selective COX-2 inhibitors. In conclusion, the findings of the current study suggest that the roots of Diospyros lotus may contain some anti-inflammatory and antibacterial agents with minimal toxicological effects and accordingly this plant product is recommended for further investigations.
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Swain SS, Paidesetty SK, Padhy RN, Hussain T. Isoniazid-phytochemical conjugation: A new approach for potent and less toxic anti-TB drug development. Chem Biol Drug Des 2020; 96:714-730. [PMID: 32237023 DOI: 10.1111/cbdd.13685] [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: 01/17/2020] [Revised: 03/12/2020] [Accepted: 03/14/2020] [Indexed: 12/13/2022]
Abstract
Mycobacterium tuberculosis (Mtb) causes one of the most grievous pandemic infectious diseases, tuberculosis (TB), with long-term morbidity and high mortality. The emergence of drug-resistant Mtb strains, and the co-infection with human immunodeficiency virus, challenges the current WHO-TB stewardship programs. The first-line anti-TB drugs, isoniazid (INH) and rifampicin (RIF), have become extensively obsolete in TB control from chromosomal mutations during the last decades. However, based on clinical trial statistics, the production of well-tolerated anti-TB drug(s) is miserably low. Alternately, semi-synthesis or structural modifications of first-line obsolete antitubercular drugs remain as the versatile approach for getting some potential medicines. The use of any suitable phytochemicals with INH in a hybrid formulation could be an ideal approach for the development of potent anti-TB drug(s). The primary objective of this review was to highlight and analyze available INH-phytochemical hybrid research works. The utilization of phytochemicals through chemical conjugation is a new trend toward the development of safer/non-toxic anti-TB drugs.
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Affiliation(s)
- Shasank S Swain
- Division of Microbiology and NCDs, ICMR-Regional Medical Research Centre, Bhubaneswar, India.,Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, India
| | - Sudhir K Paidesetty
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, India
| | - Rabindra N Padhy
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, India
| | - Tahziba Hussain
- Division of Microbiology and NCDs, ICMR-Regional Medical Research Centre, Bhubaneswar, India
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Makowski W, Tokarz KM, Tokarz B, Banasiuk R, Witek K, Królicka A. Elicitation-Based Method for Increasing the Production of Antioxidant and Bactericidal Phenolic Compounds in Dionaea muscipula J. Ellis Tissue. Molecules 2020; 25:E1794. [PMID: 32295191 PMCID: PMC7221713 DOI: 10.3390/molecules25081794] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/08/2020] [Accepted: 04/12/2020] [Indexed: 12/17/2022] Open
Abstract
The carnivorous plant Dionaea muscipula J. Ellis (Venus flytrap) is a widely known medical herb, capable of producing various phenolic compounds known for their strong antioxidant and antibacterial properties. In the pharmaceutical industry, Venus flytrap is grown in tissue cultures, as the natural population of D. muscipula is very limited. Here, we describe an improved method to increase the quantity and quality of phenolic compounds produced in D. muscipula. This is achieved by combining biotic elicitation (using Cronobacter sakazakii bacteria lysate) of D. muscipula cultured with rotary shaking (hydromechanical stress), which we describe here for the first time. The antibacterial activity and the antioxidant properties of the obtained compounds were studied on two antibiotic-resistant human pathogenic bacteria. The proposed plant culture conditions resulted in an increase in fresh weight, as well as a higher total phenolic content, in comparison to traditional tissue cultures on agar-solidified medium. With the use of high-performance liquid chromatography, we demonstrated that the described elicitation strategy leads to an increased synthesis of myricetin, caffeic acid, ellagic acid and plumbagin in D. muscipula tissue. We also found that a higher level of antioxidant activity, exhibited by the plant extract, corresponded with its higher phenylpropanoid content. The bactericidal activity of the extract against Staphylococcus aureus was dependent on the duration of plant culture under described elicitation conditions, whereas neither elicitation condition (duration or elicitor concentration) seemed relevant for the bactericidal activity of the extract towards Escherichia coli. This suggest that Gram-negative bacteria are less sensitive to compounds derived from Venus flytrap tissue.
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Affiliation(s)
- Wojciech Makowski
- Department of Botany, Physiology and Plant Protection, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, 29 Listopada 54, 31-425, Krakow, Poland; (K.M.T.); (B.T.); (K.W.)
| | - Krzysztof Michał Tokarz
- Department of Botany, Physiology and Plant Protection, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, 29 Listopada 54, 31-425, Krakow, Poland; (K.M.T.); (B.T.); (K.W.)
| | - Barbara Tokarz
- Department of Botany, Physiology and Plant Protection, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, 29 Listopada 54, 31-425, Krakow, Poland; (K.M.T.); (B.T.); (K.W.)
| | - Rafał Banasiuk
- Institute of Biotechnology and Molecular Medicine, Trzy Lipy 3, 80-172 Gdansk, Poland;
| | - Karolina Witek
- Department of Botany, Physiology and Plant Protection, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, 29 Listopada 54, 31-425, Krakow, Poland; (K.M.T.); (B.T.); (K.W.)
| | - Aleksandra Królicka
- Intercollegiate Faculty of Biotechnology UG and MUG, Laboratory of Biologically Active Compounds, University of Gdansk, Abrahama 58, 80-307 Gdansk, Poland
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Yamada N, Miki K, Yamaguchi Y, Takauji Y, Yamakami Y, Hossain MN, Ayusawa D, Fujii M. Extract of Plumbago zeylanica enhances the growth of hair follicle dermal papilla cells with down-regulation of 5α-reductase type II. J Cosmet Dermatol 2020; 19:3083-3090. [PMID: 32125089 DOI: 10.1111/jocd.13355] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 01/14/2023]
Abstract
BACKGROUND Cellular senescence, a phenomenon of irreversible growth arrest of mammalian cells, is involved in various age-related phenomena in organisms. Hair follicle dermal papilla (DP) cells play important roles in the regulation of hair growth and loss. AIMS We examined the implication of cellular senescence of DP cells in androgenetic alopecia (AGA), the most common form of male hair loss, and searched for the compounds that have a beneficial effect on the prevention of AGA. PATIENTS/METHODS Expression of the 5α-reductase type II (SRD5A2) gene, which plays a key role in the development of AGA, was examined by quantitative RT-PCR and Western blotting analysis in DP cells. Besides, DP cells were cultured with the extracts of herbs used in traditional Ayurvedic medicine to search for the compounds that have a beneficial effect on the growth of DP cells. RESULTS We found that expression of the SRD5A2 was up-regulated in senescent DP cells. We also found that the herbal extract of Plumbago zeylanica (root) enhanced the growth of DP cells and down-regulated the expression of SRD5A2 in DP cells. Further, plumbagin, an ingredient of P zeylanica, would be responsible for the above effects of P zeylanica. CONCLUSION These results suggested the possibility that senescent DP cells may have a role in the development of AGA through up-regulating SRD5A2 expression, and the P zeylanica extract and plumbagin may suppress its development through enhancing the growth of DP cells and down-regulating SRD5A2 expression in DP cells.
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Affiliation(s)
- Natsuki Yamada
- Graduate school of Nanobioscience, Yokohama City University, Yokohama, Japan
| | - Kensuke Miki
- Graduate school of Nanobioscience, Yokohama City University, Yokohama, Japan.,Ichiban Life Corporation, Yokohama, Japan
| | - Yoko Yamaguchi
- Graduate school of Nanobioscience, Yokohama City University, Yokohama, Japan
| | - Yuki Takauji
- Graduate school of Nanobioscience, Yokohama City University, Yokohama, Japan.,Ichiban Life Corporation, Yokohama, Japan
| | - Yoshimi Yamakami
- Graduate school of Nanobioscience, Yokohama City University, Yokohama, Japan
| | - Mohammad Nazir Hossain
- Department of Genetic Engineering and Biotechnology, Bangabandhu Sheikh Mujibur Rahman Maritime University, Dhaka, Bangladesh
| | - Dai Ayusawa
- Graduate school of Nanobioscience, Yokohama City University, Yokohama, Japan.,Ichiban Life Corporation, Yokohama, Japan
| | - Michihiko Fujii
- Graduate school of Nanobioscience, Yokohama City University, Yokohama, Japan
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Pandey K, Tripathi SK, Panda M, Biswal BK. Prooxidative activity of plumbagin induces apoptosis in human pancreatic ductal adenocarcinoma cells via intrinsic apoptotic pathway. Toxicol In Vitro 2020; 65:104788. [PMID: 32027944 DOI: 10.1016/j.tiv.2020.104788] [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: 11/08/2019] [Revised: 01/20/2020] [Accepted: 02/02/2020] [Indexed: 01/19/2023]
Abstract
Prognosis of pancreatic cancer patients remains extremely poor thus, the need for the development of new therapeutic options is crucial. Plumbagin, a naphthoquinone derivative from Plumbago indica has been found to possess various pharmacological properties including anticancer activity. The present study was designed to investigate the inhibitory potential of plumbagin and associated mechanisms in pancreatic cancer cells. Fluorescence and flow cytometric analysis exhibited an increased percentage of apoptotic cells in both monolayer culture and 3D tumor spheroids. Upon plumbagin treatment, reactive oxygen species content of the cancer cells escalated and prompted alleviation of the mitochondrial membrane potential, which triggers caspase-dependent apoptosis. Interestingly, N-acetylcysteine inhibited the plumbagin induced apoptosis. We also found that the expression of Bcl-2 protein decreased and the expression of Bax protein increased. Moreover, plumbagin treatment led to upregulation of cleaved caspase-3 and caspase-9. These results support the views that plumbagin induced stress signals by damaging mitochondria and induce ROS mediated apoptosis via intrinsic apoptotic signaling in pancreatic cancer cells. To summarize, our study suggests that plumbagin may be utilized as a future anti-cancer therapy agent against pancreatic cancer, which is a major threat owing to its stubborn intransigence towards current treatment regimens.
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Affiliation(s)
- Kamal Pandey
- Cancer Drug Resistance Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha 769008, India
| | - Surya Kant Tripathi
- Cancer Drug Resistance Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha 769008, India
| | - Munmun Panda
- Cancer Drug Resistance Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha 769008, India
| | - Bijesh K Biswal
- Cancer Drug Resistance Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha 769008, India.
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Dandawate P, Subramaniam D, Panovich P, Standing D, Krishnamachary B, Kaushik G, Thomas SM, Dhar A, Weir SJ, Jensen RA, Anant S. Cucurbitacin B and I inhibits colon cancer growth by targeting the Notch signaling pathway. Sci Rep 2020; 10:1290. [PMID: 31992775 PMCID: PMC6987129 DOI: 10.1038/s41598-020-57940-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/02/2020] [Indexed: 02/08/2023] Open
Abstract
Cancer stem cells (CSCs) have the ability to self-renew and induce drug resistance and recurrence in colorectal cancer (CRC). As current chemotherapy doesn’t eliminate CSCs completely, there is a need to identify novel agents to target them. We investigated the effects of cucurbitacin B (C-B) or I (C-I), a natural compound that exists in edible plants (bitter melons, cucumbers, pumpkins and zucchini), against CRC. C-B or C-I inhibited proliferation, clonogenicity, induced G2/M cell-cycle arrest and caspase-mediated-apoptosis of CRC cells. C-B or C-I suppressed colonosphere formation and inhibited expression of CD44, DCLK1 and LGR5. These compounds inhibited notch signaling by reducing the expression of Notch 1–4 receptors, their ligands (Jagged 1-2, DLL1,3,4), γ-secretase complex proteins (Presenilin 1, Nicastrin), and downstream target Hes-1. Molecular docking showed that C-B or C-I binds to the ankyrin domain of Notch receptor, which was confirmed using the cellular thermal shift assay. Finally, C-B or C-I inhibited tumor xenograft growth in nude mice and decreased the expression of CSC-markers and notch signaling proteins in tumor tissues. Together, our study suggests that C-B and C-I inhibit colon cancer growth by inhibiting Notch signaling pathway.
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Affiliation(s)
- Prasad Dandawate
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | | | - Peyton Panovich
- Shawnee Mission School District Center for Academic Achievement, Kansas City, KS, 66204, USA
| | - David Standing
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Balaji Krishnamachary
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Gaurav Kaushik
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Sufi Mary Thomas
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA.,Department of Surgery, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Animesh Dhar
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Scott J Weir
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA.,Institute for Advancing Medical Innovation, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Roy A Jensen
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Shrikant Anant
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA.
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65
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The emerging role of paraptosis in tumor cell biology: Perspectives for cancer prevention and therapy with natural compounds. Biochim Biophys Acta Rev Cancer 2020; 1873:188338. [PMID: 31904399 DOI: 10.1016/j.bbcan.2020.188338] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/06/2019] [Accepted: 01/02/2020] [Indexed: 12/20/2022]
Abstract
Standard anti-cancer therapies promote tumor growth suppression mainly via induction of apoptosis. However, in most cases cancer cells acquire the ability to escape apoptotic cell death, thus becoming resistant to current treatments. In this setting, the interest in alternative cell death modes has recently increased. Paraptosis is a new form of programmed cell death displaying endoplasmic reticulum (ER) and/or mitochondria dilation, generally due to proteostasis disruption or redox and ion homeostasis alteration. Recent studies have highlighted that several natural compounds can trigger paraptosis in different tumor cell lines. Here, we review the molecular mechanisms underlying paraptotic cell death, as well as the natural products inducing this kind of cell death program. A better understanding of paraptosis should facilitate the development of new therapeutic strategies for cancer prevention and treatment.
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Pradubyat N, Sakunrangsit N, Mutirangura A, Ketchart W. NADPH: Quinone oxidoreductase 1 (NQO1) mediated anti-cancer effects of plumbagin in endocrine resistant MCF7 breast cancer cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 66:153133. [PMID: 31790893 DOI: 10.1016/j.phymed.2019.153133] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 10/31/2019] [Accepted: 11/07/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND PLB is a natural naphthoquinone compound isolated from the roots of Plumbago indica plant. Our previous study reported the inhibitory effect of Plumbagin (PLB) on human endocrine resistant breast cancer cell growth and cell invasion. HYPOTHESIS/PURPOSE Since PLB is a naphthoquinone compound, it can be reduced by the cytosolic NADPH: quinone oxidoreductase 1 (NQO1) enzyme. NQO1 expression is upregulated in various types of aggressive cancer including breast cancer. This study investigated the impact of NQO1 on anti-cancer effects of PLB in endocrine-resistant breast cancer cells. STUDY DESIGN This study was an in vitro study using ER-positive cell line (MCF7) and endocrine-resistant cell lines (MCF7/LCC2 and MCF7/LCC9 cells). METHODS The roles of NQO1 in anti-cancer activity of PLB were investigated by using NQO1 knockdown cells, NQO1 inhibitor and NQO1 overexpressed cells. To study the impact of NQO1 on the effects of PLB on cell viability, apoptosis, invasion and generation of ROS, the following assays were used: MTT assays, annexin V-PE/7-ADD staining flow cytometry, matrigel invasion assays and DCFHDA assays. To study the mechanism of how NQO1 mediated PLB effects in tamoxifen response and apoptosis, we assessed the levels of mRNA expression by using qRT-PCR. RESULTS 1. In this study, NQO1 was upregulated in endocrine-resistant cells. 2. PLB did not change the expression of NQO1 but it was able to increase NQO1 activity. 3. The inhibitory effects of PLB on cell proliferation, cell invasion and expression of tamoxifen resistant gene were attenuated in NQO1 knockdown cells or in the presence of NQO1 inhibitor. 4. The effects of PLB to induce apoptosis and generate ROS were also decreased when NQO1 activity was inhibited or when the NQO1 expression was reduced. 5. The anti-cancer effects of PLB increased when NQO1 was upregulated. CONCLUSION The effects of PLB in endocrine-resistant breast cancer cells is dependent on NQO1's activity.
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Affiliation(s)
- Nalinee Pradubyat
- Overcoming cancer drug resistance research unit, Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nithidol Sakunrangsit
- Overcoming cancer drug resistance research unit, Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Apiwat Mutirangura
- Center for Excellence in Molecular Genetics of Cancer and Human Diseases, Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Wannarasmi Ketchart
- Overcoming cancer drug resistance research unit, Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand.
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Han Y, Shi D, Li J. Inhibition of Nasopharyngeal Carcinoma by Beta-Lapachone Occurs by Targeting the Mammalian Target of Rapamycin (mTOR)/PI3K/AKT Pathway, Reactive Oxygen Species (ROS) Production, and Autophagy Induction. Med Sci Monit 2019; 25:8995-9002. [PMID: 31770363 PMCID: PMC6896749 DOI: 10.12659/msm.915463] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Beta-lapachone has been shown to exhibit potent anti-cancer effects against various cell lines. In the present study, we examined the anti-cancer effects of beta-lapachone, a quinone, against human HNE1 nasopharyngeal carcinoma cells, and also assessed its effects on cellular migration and invasion, autophagy, mTOR/PI3K/AKT signalling pathway, and ROS production. MATERIAL AND METHODS CCK-8 cell counting assay was used to assess cell viability effects after lapachone treatment. Its effects on the mTOR/PI3K/AKT biochemical pathway were examined by Western blot analysis. Transmission electron microscopy was used to study autophagy induced by beta-lapachone. Effects on cell invasion and cell migration were evaluated by Transwell method. RESULTS The results revealed that beta-lapachone suppresses the proliferation of HNE1 cells, with an IC₅₀ of 30 µM. These growth-inhibitory effects of beta-lapachone were found to be dose-dependent. The investigation of the effects of beta-lapachone on the mTOR/PI3KAKT signalling pathway showed that beta-lapachone blocked this pathway in a concentration-dependent manner. Beta-lapachone also inhibited the migration and invasion of HNE1 nasopharyngeal cancer cells, as shown by Transwell assay. The fluorescence microscopy analysis showed that beta-lapachone increased production of reactive oxygen species (ROS), which is also linked with a concentration-dependent decrease in mitochondrial membrane potential (MMP) levels. Electron microscopy analysis showed that beta-lapachone caused the development of the autophagosomes, and the frequency of the autophagosomes increased with increased dosage of beta-lapachone. The beta-lapachone-triggered autophagy was also associated with increased protein levels of LC3 II and decreased levels of p62. CONCLUSIONS The findings of this study suggest that beta-lapachone inhibits the growth of nasopharyngeal cancer cells by promoting autophagy, and it may be useful in cancer drug discovery paradigms.
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Affiliation(s)
- Yongqing Han
- Department of Oncology, Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Dayou Shi
- Department of Oncology, Jiujiang First People's Hospital, Jiujiang, Jiangxi, China (mainland)
| | - Jingao Li
- Department of Radiotherapy, Jiangxi Tumor Hospital, Nanchang, Jiangxi, China (mainland)
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68
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Sakunrangsit N, Ketchart W. Plumbagin inhibits cancer stem-like cells, angiogenesis and suppresses cell proliferation and invasion by targeting Wnt/β-catenin pathway in endocrine resistant breast cancer. Pharmacol Res 2019; 150:104517. [PMID: 31693936 DOI: 10.1016/j.phrs.2019.104517] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 10/02/2019] [Accepted: 10/29/2019] [Indexed: 12/13/2022]
Abstract
Fifty percent of advanced stage ER-positive breast cancer patients develop endocrine resistance. Aberrant activation of Wnt/β-catenin is associated with stem-like phenotypes and epithelial-mesenchymal transition (EMT) process which confers resistance to endocrine therapy. Cancer stem-like cells (CSLCs) can be a vital source of proangiogenic factors including fibroblast growth factor 2 (FGF2) which drives angiogenesis and leads to tumor growth and metastasis. Therefore, targeting Wnt and FGF2 may provide effective treatment for endocrine resistant breast cancer. Our previous in vitro study reported that plumbagin (PLB) was a potent anticancer agent and was able to inhibit EMT in endocrine-resistant cells. This study aimed to further investigate the inhibitory effects of PLB on cancer stem-like phenotypes, tumorigenicity and angiogenesis. The results demonstrated Wnt/β-catenin signaling was activated and was able to form mammospheres with increased cancer stem cell markers (ALDH1, NANOG, and OCT4) in endocrine-resistant cells. PLB significantly inhibited colony-forming, mammosphere formation and decreased cancer stem cell markers. The inhibitory effects of PLB on cell proliferation and invasion were mediated by Wnt signaling pathway. PLB also significantly reduced Wnt responsive genes and β-catenin. Moreover, PLB treatment at doses of 2 and 4 mg/kg/day inhibited tumor growth, angiogenesis and metastasis without any adverse effects on body weight and blood coagulation in orthotopic xenograft nude mice. In conclusion, PLB exerted anti-cancer activity and eliminated stem-like properties by attenuating Wnt/β-catenin signaling and FGF2 expression. These findings suggest that PLB could be a promising agent to treat endocrine resistant breast cancer.
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Affiliation(s)
- Nithidol Sakunrangsit
- Overcoming Cancer Drug Resistance Research Unit, Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Wannarasmi Ketchart
- Overcoming Cancer Drug Resistance Research Unit, Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand.
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69
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Checker R, Pal D, Patwardhan RS, Basu B, Sharma D, Sandur SK. Modulation of Caspase-3 activity using a redox active vitamin K3 analogue, plumbagin, as a novel strategy for radioprotection. Free Radic Biol Med 2019; 143:560-572. [PMID: 31493505 DOI: 10.1016/j.freeradbiomed.2019.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/30/2019] [Accepted: 09/01/2019] [Indexed: 12/15/2022]
Abstract
Radiation induced damage to normal cells is a major shortcoming of conventional radiotherapy, which necessitates the development of novel radio-protective drugs. An ideal radio-modulator would protect normal cells while having cytotoxic effects on cancer cells. Plumbagin is a potent anti-tumour agent and has been shown to sensitize tumour cells to radiation-induced damage. In the present study, we have evaluated the radio-protective potential of plumbagin and found that it protected normal lymphocytes against radiation-induced apoptosis, but did not protect cancer cells against radiation. Plumbagin offered radioprotection even when it was added to cells after irradiation. The ability of only thiol based antioxidants to abrogate the radio-protective effects of plumbagin suggested a pivotal role of thiol groups in the radio-protective activity of plumbagin. Further, protein interaction network (PIN) analysis was used to predict the molecular targets of plumbagin. Based on the inputs from plumbagin's PIN and in light of its well-documented ability to modulate thiol groups, we proposed that plumbagin may act via modulation of caspase enzyme which harbours a critical catalytic cysteine. Indeed, plumbagin suppressed radiation-induced increase in homogenous caspase and caspase-3 activity in lymphocytes. Plumbagin also inhibited the activity of recombinant caspase-3 and mass spectrometric analysis revealed that plumbagin covalently interacts with caspase-3. Further, the in vivo radioprotective efficacy of plumbagin (single dose of 2mg/kg body weight) was demonstrated by its ability to rescue mice against radiation (7.5 Gy; Whole Body Irradiation) induced mortality. These results indicate that plumbagin prevents radiation induced apoptosis specifically in normal cells by inhibition of caspase-3 activity.
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Affiliation(s)
- Rahul Checker
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Debojyoti Pal
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Raghavendra S Patwardhan
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Bhakti Basu
- Molecular Biology Division, Bio-science Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Deepak Sharma
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India.
| | - Santosh K Sandur
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India.
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Marrazzo P, Angeloni C, Hrelia S. Combined Treatment with Three Natural Antioxidants Enhances Neuroprotection in a SH-SY5Y 3D Culture Model. Antioxidants (Basel) 2019; 8:antiox8100420. [PMID: 31547034 PMCID: PMC6827135 DOI: 10.3390/antiox8100420] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/11/2019] [Accepted: 09/18/2019] [Indexed: 12/12/2022] Open
Abstract
Currently, the majority of cell-based studies on neurodegeneration are carried out on two-dimensional cultured cells that do not represent the cells residing in the complex microenvironment of the brain. Recent evidence has suggested that three-dimensional (3D) in vitro microenvironments may better model key features of brain tissues in order to study molecular mechanisms at the base of neurodegeneration. So far, no drugs have been discovered to prevent or halt the progression of neurodegenerative disorders. New therapeutic interventions can come from phytochemicals that have a broad spectrum of biological activities. On this basis, we evaluated the neuroprotective effect of three phytochemicals (sulforaphane, epigallocatechin gallate, and plumbagin) alone or in combination, focusing on their ability to counteract oxidative stress. The combined treatment was found to be more effective than the single treatments. In particular, the combined treatment increased cell viability and reduced glutathione (GSH) levels, upregulated antioxidant enzymes and insulin-degrading enzymes, and downregulated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 1 and 2 in respect to peroxide-treated cells. Our data suggest that a combination of different phytochemicals could be more effective than a single compound in counteracting neurodegeneration, probably thanks to a pleiotropic mechanism of action.
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Affiliation(s)
- Pasquale Marrazzo
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47921 Rimini, Italy.
| | | | - Silvana Hrelia
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy.
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Boonsnongcheep P, Sae-Foo W, Banpakoat K, Channarong S, Chitsaithan S, Uafua P, Putha W, Kerdsiri K, Putalun W. Artificial color light sources and precursor feeding enhance plumbagin production of the carnivorous plants Drosera burmannii and Drosera indica. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 199:111628. [PMID: 31610432 DOI: 10.1016/j.jphotobiol.2019.111628] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/22/2019] [Accepted: 09/11/2019] [Indexed: 01/10/2023]
Abstract
Plumbagin is the main pharmacologically active compound of carnivorous plants in the genera Drosera. It possesses various pharmacological activities, including anticancer and antimalarial activities, and is used in traditional medicine. In this study, we reported a sustainable production system of plumbagin by adding sodium acetate and L-alanine as precursors to in vitro cultures of Drosera burmannii Vahl and Drosera indica L. In addition, plumbagin production was reported in the cultures subjected to different color LED lights. The highest plumbagin level (aerial part 14.625 ± 1.007 mg·g-1 DW and root part 1.806 ± 0.258 mg·g-1 DW) was observed in D. indica cultured under blue LED light for 14 days, and further culturing did not increase plumbagin production. In addition, plumbagin enhancement by precursor feeding (9.850 ± 0.250 mg·g-1 DW, 1.2-fold) was observed in the aerial part of D. indica treated with 50 mg·L-1 sodium acetate for 3 days. Comparing both plants, up to 700-fold higher plumbagin was observed in D. indica than in D. burmannii. Moreover, in both plants, the aerial part accumulated higher plumbagin (up to 10-fold) than the roots. This is the first report on the effect of artificial LED lights on the plumbagin level of Dorsera plants. The culturing of D. indica under blue LED light showed enhanced plumbagin levels and suggests a fast and simple system for the in vitro production of plumbagin.
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Affiliation(s)
- Panitch Boonsnongcheep
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Worapol Sae-Foo
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Kanpawee Banpakoat
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Suwaphat Channarong
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Sukanda Chitsaithan
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Pornpimon Uafua
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Wattika Putha
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Kanchanok Kerdsiri
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University, Khon Kaen University, Khon Kaen 40002, Thailand.
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Andhale NB, Shahnawaz M, Ade AB. Fungal endophytes of Plumbago zeylanica L. enhances plumbagin content. BOTANICAL STUDIES 2019; 60:21. [PMID: 31494810 PMCID: PMC6732136 DOI: 10.1186/s40529-019-0270-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 08/22/2019] [Indexed: 05/02/2023]
Abstract
BACKGROUND Plumbagin is one of the pharmaceutically important biomolecule with anticancer potential. Among the plants reported to produce plumbagin, P. zeylanica topped the list. The plumbagin production is very slow with low yield and maximum 0.5% (of dry weight) was reported in P. zeylanica. To meet the increasing demand of the plumbagin at global level, the P. zeylanica are exploited at commercial level, which may pose serious threat on the germplasm of the plant populations. So, it is needed to enhance the contents of plumbagin in P. zeylanica using biotechnological approaches. Among the various methods used to enhance the contents of plumbagin in P. zeylanica, utilization of fungal endophytes to enhance the plumbagin contents is a widely accepted approach. As fungal endophytes have the potential to synthesize various secondary metabolites and also reported to influence the synthesis of the secondary metabolites in plants. In the present study, an attempt was made to assess the effect of fungal endophytes of the Plumbago zeylanica L. on enhancement of plumbagin contents at in vivo level. RESULTS Total 3 fungal endophytes were recorded from the roots of P. zeylanica collected from Khadki, Pune. The fungal endophytes were identified at morphological and molecular level. After 1 year of the treatment with fungal endophytes, significant enhancement of plumbagin was recorded in the roots of the P. zeylanica. Plumbagin contents in each were quantified against the standard plumbagin by employing LCMS-MS technique. Among the three fungal endophytes, the maximum enhancement of plumbagin content (122.67%) was reported with the treatment of Alternaria sp. (Isolate-3) in the roots of the P. zeylanica compared to control. CONCLUSION Among the three fungal endophytes, the maximum enhancement of plumbagin content (122.67%) was reported with Alternaria sp. (Isolate 3) in the roots of the pot-grown plants of P. zeylanica at in vivo level.
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Affiliation(s)
- Namdeo B Andhale
- Department of Botany, Savitribai Phule Pune University, Ganeshkhind, Pune, Maharashtra, 411007, India
- Department of Biology, Fergusson College, FC Road, Shivajinagar, Pune, MS, 411004, India
| | - Mohd Shahnawaz
- Department of Botany, Savitribai Phule Pune University, Ganeshkhind, Pune, Maharashtra, 411007, India.
- Plant Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road Jammu, Jammu, J&K, 180001, India.
| | - Avinash B Ade
- Department of Botany, Savitribai Phule Pune University, Ganeshkhind, Pune, Maharashtra, 411007, India.
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Avila-Carrasco L, Majano P, Sánchez-Toméro JA, Selgas R, López-Cabrera M, Aguilera A, González Mateo G. Natural Plants Compounds as Modulators of Epithelial-to-Mesenchymal Transition. Front Pharmacol 2019; 10:715. [PMID: 31417401 PMCID: PMC6682706 DOI: 10.3389/fphar.2019.00715] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 06/05/2019] [Indexed: 12/13/2022] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is a self-regulated physiological process required for tissue repair that, in non-controled conditions may lead to fibrosis, angiogenesis, loss of normal organ function or cancer. Although several molecular pathways involved in EMT regulation have been described, this process does not have any specific treatment. This article introduces a systematic review of effective natural plant compounds and their extract that modulates the pathological EMT or its deleterious effects, through acting on different cellular signal transduction pathways both in vivo and in vitro. Thereby, cryptotanshinone, resveratrol, oxymatrine, ligustrazine, osthole, codonolactone, betanin, tannic acid, gentiopicroside, curcumin, genistein, paeoniflorin, gambogic acid and Cinnamomum cassia extracts inhibit EMT acting on transforming growth factor-β (TGF-β)/Smads signaling pathways. Gedunin, carnosol, celastrol, black rice anthocyanins, Duchesnea indica, cordycepin and Celastrus orbiculatus extract downregulate vimectin, fibronectin and N-cadherin. Sulforaphane, luteolin, celastrol, curcumin, arctigenin inhibit β-catenin signaling pathways. Salvianolic acid-A and plumbagin block oxidative stress, while honokiol, gallic acid, piperlongumine, brusatol and paeoniflorin inhibit EMT transcription factors such as SNAIL, TWIST and ZEB. Plectranthoic acid, resveratrol, genistein, baicalin, polyphyllin I, cairicoside E, luteolin, berberine, nimbolide, curcumin, withaferin-A, jatrophone, ginsenoside-Rb1, honokiol, parthenolide, phoyunnanin-E, epicatechin-3-gallate, gigantol, eupatolide, baicalin and baicalein and nitidine chloride inhibit EMT acting on other signaling pathways (SIRT1, p38 MAPK, NFAT1, SMAD, IL-6, STAT3, AQP5, notch 1, PI3K/Akt, Wnt/β-catenin, NF-κB, FAK/AKT, Hh). Despite the huge amount of preclinical data regarding EMT modulation by the natural compounds of plant, clinical translation is poor. Additionally, this review highlights some relevant examples of clinical trials using natural plant compounds to modulate EMT and its deleterious effects. Overall, this opens up new therapeutic alternatives in cancer, inflammatory and fibrosing diseases through the control of EMT process.
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Affiliation(s)
- Lorena Avila-Carrasco
- Therapeutic and Pharmacology Department, Health and Human Science Research, Academic Unit of Human Medicine and Health Sciences, Autonomous University of Zacatecas, Zacatecas, Mexico
| | - Pedro Majano
- Molecular Biology Unit, Research Institute of University Hospital La Princesa (IP), Madrid, Spain
| | - José Antonio Sánchez-Toméro
- Department and Nephrology, Research Institute of University Hospital La Princesa (IP), Madrid, Spain.,Renal research network REDINREN, Madrid, Spain
| | - Rafael Selgas
- Research Institute of La Paz (IdiPAZ), University Hospital La Paz, Madrid, Spain.,Renal research network REDINREN, Madrid, Spain
| | - Manuel López-Cabrera
- Renal research network REDINREN, Madrid, Spain.,Molecular Biology Research Centre Severo Ochoa, Spanish Council for Scientific Research (CSIC), Madrid, Spain
| | - Abelardo Aguilera
- Molecular Biology Unit, Research Institute of University Hospital La Princesa (IP), Madrid, Spain.,Renal research network REDINREN, Madrid, Spain
| | - Guadalupe González Mateo
- Research Institute of La Paz (IdiPAZ), University Hospital La Paz, Madrid, Spain.,Renal research network REDINREN, Madrid, Spain.,Molecular Biology Research Centre Severo Ochoa, Spanish Council for Scientific Research (CSIC), Madrid, Spain
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74
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Suchaichit N, Suchaichit NP, Kanokmedhakul K, Boottanun P, Sermswan RW, Moosophon P, Kanokmedhakul S. A new cytotoxic plumbagin derivative from roots of Diospyros undulata. Nat Prod Res 2019; 35:1605-1612. [PMID: 31203668 DOI: 10.1080/14786419.2019.1630120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A new plumbagin derivative, 3-(5-oxohexyl)plumbagin (1), together with six known benzoquinone derivatives (2-7), four known triterpenoids (8-11) and coniferyl aldehyde (12) were isolated from Diospyros undulata roots. Their structures were elucidated by intensive spectroscopy including 1 D and 2 D NMR, UV, IR and MS spectrometric analysis. Compound 1 exhibited strong cytotoxicity against three cancer cell lines as lung cancer (NCI-H187), breast cancer (MCF-7), and oral cancer (KB) with IC50 values of 7.16, 12.85 and 28.67 µM, respectively. Moreover, it did not showed cytotoxicity to Vero cells. In addition, the antimicrobial activity of compound 1 was moderate that kill only S. aureus with MBC of 250 µg/mL while other compounds especially compound 4 showed a broader activity that kill all tested bacteria.
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Affiliation(s)
- Nattawut Suchaichit
- Department of Applied Chemistry, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
| | - Natcha P Suchaichit
- Department of Applied Chemistry, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
| | - Kwanjai Kanokmedhakul
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Patcharaporn Boottanun
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.,Melioidosis Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Rasana W Sermswan
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.,Melioidosis Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Panawan Moosophon
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Somdej Kanokmedhakul
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
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75
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Crystal structures and biological activity of homologated (N)-n-alkylammonium salts of 2-bromo-3-oxido-1,4-naphthoquinone. Struct Chem 2019. [DOI: 10.1007/s11224-019-01343-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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76
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Periasamy H, Iswarya S, Pavithra N, Senthilnathan S, Gnanamani A. In vitro antibacterial activity of plumbagin isolated from Plumbago zeylanica L. against methicillin-resistant Staphylococcus aureus. Lett Appl Microbiol 2019; 69:41-49. [PMID: 31044446 DOI: 10.1111/lam.13160] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 04/03/2019] [Accepted: 04/03/2019] [Indexed: 12/13/2022]
Abstract
Plumbagin (5-hydroxy-2-methyl-1,4-napthoquinone) is a bicyclic naphthoquinone, found in three major plant families viz. Plumbaginaceae, Ebenceae and Droseraceae. The phytochemical is reported to exhibit various pharmacological properties. In this study, plumbagin isolated from Plumbago zeylanica L. was investigated for its in vitro activity against methicillin-resistant Staphylococcus aureus (MRSA). Against 100 MRSA isolates that included multi-drug-resistant phenotypes, plumbagin showed consistent activity with a narrow minimum inhibitory concentration (MIC) range of 4-8 μg ml-1 . The time-kill study revealed 99% kill of a reference MRSA strain, 8 h after exposure to plumbagin. In the combination MIC study using the reference MRSA strain, plumbagin showed synergistic effect with ciprofloxacin and piperacillin while additive or indifference effect with other commonly used antibiotics. The transmission electron micrograph of the reference MRSA strain treated with plumbagin confirmed cell wall and cytoplasmic changes. Our results demonstrated potent anti-MRSA activity of plumbagin which was not impacted by multi-drug resistance. This is a first ever study that evaluated in vitro anti-MRSA activity of plumbagin employing large number of MRSA isolates. The findings of this study support the need for the further investigation on this phytochemical agent for therapeutic application. SIGNIFICANCE AND IMPACT OF THE STUDY: This study revealed phytochemical plumbagin's potent and consistent in vitro antibacterial activity against clinically problematic methicillin-resistant Staphylococcus aureus (MRSA) including multi-drug-resistant (MDR) phenotypes. The study results support further research to assess the clinical scope of plumbagin.
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Affiliation(s)
- H Periasamy
- CSIR-Central Leather Research Institute, Chennai, India
| | - S Iswarya
- CSIR-Central Leather Research Institute, Chennai, India
| | - N Pavithra
- CSIR-Central Leather Research Institute, Chennai, India
| | - S Senthilnathan
- CSIR-Central Leather Research Institute, Chennai, India.,The CHILDS Trust Medical Research Foundation, Chennai, India
| | - A Gnanamani
- CSIR-Central Leather Research Institute, Chennai, India
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77
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Yamada K, Yoshida K. Mechanical insights into the regulation of programmed cell death by p53 via mitochondria. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:839-848. [DOI: 10.1016/j.bbamcr.2019.02.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 02/13/2019] [Accepted: 02/13/2019] [Indexed: 02/08/2023]
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78
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Dandawate P, Padhye S, Schobert R, Biersack B. Discovery of natural products with metal-binding properties as promising antibacterial agents. Expert Opin Drug Discov 2019; 14:563-576. [PMID: 30905202 DOI: 10.1080/17460441.2019.1593367] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION More than 50% of the clinically established antibiotics are either genuine natural products or derivatives thereof, featuring a mode of action decisively depending on their metal affinity and suitability as metal complex ligands. As their structural diversity and harvest from renewable sources is well-nigh inexhaustible, any future quest for affordable new antibiotics will have to concentrate on natural drugs with obvious metal ligating properties. Areas covered: The authors provide an overview of the promising developments in the field of antibiotic natural products with metal-binding properties with a specific focus on metal binders such as polyphenols, quinones, 3-acyltetramic and -tetronic acids. Works published by the authors are discussed in this manuscript as well as articles derived from PubMed and Scifinder. Expert opinion: Natural products with metal-binding properties possess a great potential for the development of drugs against various bacteria. There are many derivatives with great potential against multidrug-resistant bacteria as well. Synthetic approaches to structurally complex and/or rare natural products have added significantly to the cracking of synthetic problems. Thus, this field of scientific research appears attractive both to chemists and to clinicians.
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Affiliation(s)
- Prasad Dandawate
- a Postdoctoral Researcher, Department of Cancer Biology, School of Medicine , Kansas University Medical Center , Kansas , USA
| | - Subhash Padhye
- b University of Pune , Interdisciplinary Science and Technology Research Academy (ISTRA) , Pune , India
| | - Rainer Schobert
- c Organic Chemistry Laboratory , University of Bayreuth , Bayreuth , Germany
| | - Bernhard Biersack
- c Organic Chemistry Laboratory , University of Bayreuth , Bayreuth , Germany
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79
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Roy R, Pal D, Sur S, Mandal S, Saha P, Panda CK. Pongapin and Karanjin, furanoflavanoids of
Pongamia pinnata
, induce G2/M arrest and apoptosis in cervical cancer cells by differential reactive oxygen species modulation, DNA damage, and nuclear factor kappa‐light‐chain‐enhancer of activated B cell signaling. Phytother Res 2019; 33:1084-1094. [PMID: 30834631 DOI: 10.1002/ptr.6302] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/15/2018] [Accepted: 01/11/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Rituparna Roy
- Department of Oncogene RegulationChittaranjan National Cancer Institute Kolkata West Bengal India
| | - Debolina Pal
- Department of Oncogene RegulationChittaranjan National Cancer Institute Kolkata West Bengal India
| | - Subhayan Sur
- Department of Oncogene RegulationChittaranjan National Cancer Institute Kolkata West Bengal India
- Department of Pathology, Edward A. Doisy Research CentreSaint Louis University St. Louis Missouri USA
| | - Suvra Mandal
- Department of ChemistryNational Research Institute for Ayurvedic Drug Development Bidhannagar West Bengal India
| | - Prosenjit Saha
- Department of Oncogene RegulationChittaranjan National Cancer Institute Kolkata West Bengal India
- Department of Cancer ChemopreventionChittaranjan National Cancer Institute Kolkata West Bengal India
| | - Chinmay Kumar Panda
- Department of Oncogene RegulationChittaranjan National Cancer Institute Kolkata West Bengal India
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80
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Plumbagin reduces obesity and nonalcoholic fatty liver disease induced by fructose in rats through regulation of lipid metabolism, inflammation and oxidative stress. Biomed Pharmacother 2019; 111:686-694. [DOI: 10.1016/j.biopha.2018.12.139] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/20/2018] [Accepted: 12/30/2018] [Indexed: 02/06/2023] Open
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81
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Tripathi SK, Panda M, Biswal BK. Emerging role of plumbagin: Cytotoxic potential and pharmaceutical relevance towards cancer therapy. Food Chem Toxicol 2019; 125:566-582. [PMID: 30685472 DOI: 10.1016/j.fct.2019.01.018] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/04/2019] [Accepted: 01/20/2019] [Indexed: 12/24/2022]
Abstract
Plumbagin is a naphthoquinone derived yellow crystalline phytochemical. Plumbagin has a wide range of biological effects including cytotoxicity against cancer cells both in vitro and in vivo. Due to the pleiotropic nature of plumbagin, it shows the anticancer effect by targeting several molecular mechanisms including apoptosis and autophagic pathways, cell cycle arrest, anti-angiogenic pathways, anti-invasion and anti-metastasis pathways. Among many signaling pathways the key regulatory genes regulated by plumbagin are NF-kβ, STAT3, and AKT, etc. Plumbagin is also a potent inducer of ROS, suppressor of cellular glutathione, and causes DNA strand break by oxidative DNA base damages. In vivo studies suggested that plumbagin significantly reduces the tumor weight and volume in dose-dependent manner without any side effects in tested model organisms. Another exciting aspect of plumbagin is the ability to re-sensitize the chemo and radioresistant cancer cells when used in combination or alone. Nano encapsulation of plumbagin overcomes the poor water solubility and bioavailability obstacles, enhancing the pharmaceutical relevance with better therapeutic efficacy. Moreover, plumbagin can be introduced as a future phytotherapeutic anticancer drug after fully satisfied preclinical and clinical trials.
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Affiliation(s)
- Surya Kant Tripathi
- Cancer Drug Resistance Laboratory, Department of Life Science, National Institute of Technology Rourkela, 769008, Sundergarh, Odisha, India
| | - Munmun Panda
- Cancer Drug Resistance Laboratory, Department of Life Science, National Institute of Technology Rourkela, 769008, Sundergarh, Odisha, India
| | - Bijesh K Biswal
- Cancer Drug Resistance Laboratory, Department of Life Science, National Institute of Technology Rourkela, 769008, Sundergarh, Odisha, India.
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82
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Lee HP, Chen PC, Wang SW, Fong YC, Tsai CH, Tsai FJ, Chung JG, Huang CY, Yang JS, Hsu YM, Li TM, Tang CH. Plumbagin suppresses endothelial progenitor cell-related angiogenesis in vitro and in vivo. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.11.040] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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83
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Chen W, Guo R, Yang Z, Gong J. Formal Total Synthesis of Hybocarpone Enabled by Visible-Light-Promoted Benzannulation. J Org Chem 2018; 83:15524-15532. [PMID: 30484314 DOI: 10.1021/acs.joc.8b02595] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The formal total synthesis of hybocarpone was achieved in eight steps from commercially available 1,2,4-trimethoxybenzene. Key transformations include a visible-light-promoted benzannulation to construct the key α-naphthol intermediate and a modified CAN-mediated dimerization/hydration cascade sequence to generate the vicinal all-carbon quaternary centers in a stereocontrolled manner. The total synthesis of boryquinone was also achieved in seven steps.
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Affiliation(s)
- Wei Chen
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics , Peking University Shenzhen Graduate School , Shenzhen 518055 , China
| | - Renyu Guo
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics , Peking University Shenzhen Graduate School , Shenzhen 518055 , China
| | - Zhen Yang
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics , Peking University Shenzhen Graduate School , Shenzhen 518055 , China.,Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences , Peking University , Beijing 100871 , China
| | - Jianxian Gong
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics , Peking University Shenzhen Graduate School , Shenzhen 518055 , China
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84
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Lin Y, Chen Y, Wang S, Ma J, Peng Y, Yuan X, Lv B, Chen W, Wei Y. Plumbagin induces autophagy and apoptosis of SMMC-7721 cells in vitro and in vivo. J Cell Biochem 2018; 120:9820-9830. [PMID: 30536473 DOI: 10.1002/jcb.28262] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 10/22/2018] [Indexed: 01/03/2023]
Abstract
Plumbagin (PL), an active naphthoquinone compound, has been demonstrated to be a potential anticancer agent. However, the underlying anticancer mechanism is not fully understood. In this study, the human hepatocellular carcinoma (HCC) SMMC-7721 cell line was studied in an in vitro model. The cell proliferation was inhibited by PL in a dose- and time-dependent manner. Electron microscopy, acridine orange staining, and immunofluorescence were used to evaluate autophagosome formation and LC3 protein expression in PL-treated SMMC-7721 cells. Real-time polymerase chain reaction and Western blot showed that PL treatment suppressed the expression of apoptosis and autophagy factors (LC3, Beclin1, Atg7, and Atg5), which are associated with tumor apoptosis and autophagy in SMMC-7721 cells. In the study of in vitro tumor nude mouse models, PL can inhibit tumor growth. Cell apoptosis and autophagy of the transplanted tumors were evaluated by hematoxylin and eosin staining, terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling staining, and Western blot. In addition, in the in vivo studies of HCC cells, we found that pretreatment with the autophagy inhibitor 3-methyladenine blocked the formation of apoptosis induced by PL. In contrast, administration of the apoptosis inhibitor Z-VAD did not affect PL-induced autophagy. Taken together, our findings strongly suggest that PL is a promising drug with significant antitumor activity in HCC.
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Affiliation(s)
- Yuning Lin
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Yongxin Chen
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Shengshan Wang
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Jing Ma
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Yue Peng
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Xianling Yuan
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Beibei Lv
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Wanjun Chen
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Yanfei Wei
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
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85
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Encapsulation of plumbagin using cyclodextrins to enhance plumbagin stability: computational simulation, preparation, characterization, and application. J INCL PHENOM MACRO 2018. [DOI: 10.1007/s10847-018-0870-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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86
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De U, Son JY, Jeon Y, Ha SY, Park YJ, Yoon S, Ha KT, Choi WS, Lee BM, Kim IS, Kwak JH, Kim HS. Plumbagin from a tropical pitcher plant (Nepenthes alata Blanco) induces apoptotic cell death via a p53-dependent pathway in MCF-7 human breast cancer cells. Food Chem Toxicol 2018; 123:492-500. [PMID: 30458268 DOI: 10.1016/j.fct.2018.11.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 11/14/2018] [Accepted: 11/16/2018] [Indexed: 12/16/2022]
Abstract
Plumbagin (5-hydroxy-2-methyl-1,4-naphthaquinone) has displayed antitumor activity in vitro and in animal models; however, the underlying molecular mechanisms have not been fully explored. The aim of this study was to investigate the anticancer effects of plumbagin isolated from Nepenthes alata against MCF-7 breast cancer cells. We examined the cytotoxicity, cell cycle regulation, apoptotic cell death, and generation of intracellular reactive oxygen species (ROS) in MCF-7 cells. Plumbagin exhibited potent cytotoxicity in MCF-7 cells (wild-type p53) compared to that in SK-OV-3 (null-type) human epithelial ovarian cancer cells. Specifically, plumbagin upregulated the expression of p21CIP1/WAF1 in MCF-7 cells, causing cell cycle arrest in the G2/M phase through inhibition of cyclin B1 levels. Plumbagin also significantly increased the ratio of Bax/Bcl-2 and release of cytochrome c, resulting in apoptotic cell death in MCF-7 cells. Furthermore, plumbagin dramatically increased the intracellular ROS level, whereas pretreatment with the ROS scavenger N-acetyl cysteine protected against plumbagin-induced cytotoxicity, suggesting that ROS formation plays a pivotal role in antitumor activity in MCF-7 cells. In mice bearing MCF-7 cell xenografts, plumbagin significantly reduced tumor growth and weight without apparent side effects. We therefore concluded that plumbagin exerts anticancer activity against MCF-7 cells through the generation of intracellular ROS, resulting in the induction of apoptosis via a p53-dependent pathway. This study thus identifies a new anticancer mechanism of plumbagin against p53-dependent breast cancer cells and suggests a novel strategy for overcoming of breast cancer therapy.
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Affiliation(s)
- Umasankar De
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Ji Yeon Son
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yukyoung Jeon
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Song-Yi Ha
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yu Jin Park
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Sungpil Yoon
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Ki-Tae Ha
- School of Korean Medicine and Healthy Aging Korean Medicine Research Center, Pusan National University, Yangsan, 50612, Republic of Korea
| | - Wahn Soo Choi
- School of Medicine, Konkuk University, Chungju, 27478, Republic of Korea
| | - Byung Mu Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jong Hwan Kwak
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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87
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Plumbagin-Loaded Nanoemulsion Drug Delivery Formulation and Evaluation of Antiproliferative Effect on Prostate Cancer Cells. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9035452. [PMID: 30534567 PMCID: PMC6252225 DOI: 10.1155/2018/9035452] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/19/2018] [Accepted: 10/24/2018] [Indexed: 11/18/2022]
Abstract
Background Plumbagin, a medicinal plant-derived 5-hydroxy-2-methyl-1,4-naphthoquinone, is an emerging drug with a variety of pharmacological effects, including potent anticancer activity. We have previously shown that plumbagin improves the efficacy of androgen deprivation therapy (ADT) in prostate cancer and it is now being evaluated in phase I clinical trial. However, the development of formulation of plumbagin as a compound with sparing solubility in water is challenging. Methods We have formulated plumbagin-loaded nanoemulsion using pneumatically controlled high pressure homogenization of oleic acid dispersions with polyoxyethylene (20) sorbitan monooleate as surfactant. Nanoemulsion formulations were characterized for particle size distribution by dynamic light scattering (DLS). The kinetics of in vitro drug release was determined by equilibrium dialysis. Anticancer activity toward prostate cancer cells PTEN-P2 was assessed by MTS (Owen's reagent) assay. Results Particle size distribution of nanoemulsions is tunable and depends on the surfactant concentration. Nanoemulsion formulations of plumbagin with 1-3.5% (w/w) of surfactant showed robust stability of size distribution over time. Plumbagin-loaded nanoemulsion with average hydrodynamic diameter of 135 nm showed exponential release of plumbagin with a half-life of 6.1 h in simulated gastric fluid, 7.0 h in simulated intestinal fluid, and displayed enhanced antiproliferative effect toward prostate cancer cells PTEN-P2 compared to free plumbagin. Conclusion High drug-loading capacity, retention of nanoparticle size, kinetics of release under simulated physiological conditions, and increased antiproliferative activity indicate that oleic-acid based nanoemulsion formulation is a suitable delivery system of plumbagin.
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88
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Buckner MMC, Ciusa ML, Piddock LJV. Strategies to combat antimicrobial resistance: anti-plasmid and plasmid curing. FEMS Microbiol Rev 2018; 42:781-804. [PMID: 30085063 PMCID: PMC6199537 DOI: 10.1093/femsre/fuy031] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 07/25/2018] [Indexed: 12/17/2022] Open
Abstract
Antimicrobial resistance (AMR) is a global problem hindering treatment of bacterial infections, rendering many aspects of modern medicine less effective. AMR genes (ARGs) are frequently located on plasmids, which are self-replicating elements of DNA. They are often transmissible between bacteria, and some have spread globally. Novel strategies to combat AMR are needed, and plasmid curing and anti-plasmid approaches could reduce ARG prevalence, and sensitise bacteria to antibiotics. We discuss the use of curing agents as laboratory tools including chemicals (e.g. detergents and intercalating agents), drugs used in medicine including ascorbic acid, psychotropic drugs (e.g. chlorpromazine), antibiotics (e.g. aminocoumarins, quinolones and rifampicin) and plant-derived compounds. Novel strategies are examined; these include conjugation inhibitors (e.g. TraE inhibitors, linoleic, oleic, 2-hexadecynoic and tanzawaic acids), systems designed around plasmid incompatibility, phages and CRISPR/Cas-based approaches. Currently, there is a general lack of in vivo curing options. This review highlights this important shortfall, which if filled could provide a promising mechanism to reduce ARG prevalence in humans and animals. Plasmid curing mechanisms which are not suitable for in vivo use could still prove important for reducing the global burden of AMR, as high levels of ARGs exist in the environment.
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Affiliation(s)
- Michelle M C Buckner
- Institute of Microbiology and Infection, College of Medical and Dental Sciences, The University of Birmingham B15 2TT, UK
| | - Maria Laura Ciusa
- Institute of Microbiology and Infection, College of Medical and Dental Sciences, The University of Birmingham B15 2TT, UK
| | - Laura J V Piddock
- Institute of Microbiology and Infection, College of Medical and Dental Sciences, The University of Birmingham B15 2TT, UK
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89
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Jaiswal A, Sabarwal A, Narayan Mishra JP, Singh RP. Plumbagin induces ROS-mediated apoptosis and cell cycle arrest and inhibits EMT in human cervical carcinoma cells. RSC Adv 2018; 8:32022-32037. [PMID: 35547513 PMCID: PMC9085811 DOI: 10.1039/c8ra05339a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 08/19/2018] [Indexed: 02/04/2023] Open
Abstract
Plumbagin, an important phytochemical from the roots of the medicinal plant Plumbago zeylanica L. has shown many biological activities. The roots of this plant have been in use in the Indian system of medicine for more than twenty five centuries for treatments of various ailments. It has shown anticancer activities, however, the anticancer and anti-metastatic effects of plumbagin are largely unknown against cervical cancer cells. Herein, we investigated the molecular alterations associated with plumbagin-mediated inhibition of growth, survival and epithelial to mesenchymal transition of human cervical cancer SiHa and HeLa cells. Plumbagin (1-4 μM) caused a significant decrease in the cell viability and increased the cell death in SiHa and Hela cells after 24 and 48 h. Plumbagin also caused strong G2/M and S-G2/M phase cell cycle arrest in SiHa and HeLa cells, respectively which was accompanied by a decrease in the expression of cyclin and CDK levels. The expression levels of both mRNAs and proteins of cyclin B1, A and E2 and CDK 1 and 2 decreased after 24 and 48 h. Plumbagin strongly induced apoptosis along with increased ratio of Bax : Bcl2 and cleavage of caspase 3, 9, and PARP. Plumbagin caused a significant increase in reactive oxygen species generation which mediated cell death as it was attenuated by pre-treatment with N-acetyl cysteine. Additionally, we also report for the first time that plumbagin possesses an anti-metastatic effect at non-cytotoxic doses that was accompanied by the modulation of MMP-2, 9, E-cadherin, N-cadherin, β-catenin and vimentin. Taken together, our findings suggest that plumbagin has strong anticancer and anti-metastatic effects against human cervical cancer cells.
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Affiliation(s)
- Ankita Jaiswal
- School of Life Sciences, Central University of Gujarat Gandhinagar Gujarat India
| | - Akash Sabarwal
- School of Life Sciences, Central University of Gujarat Gandhinagar Gujarat India
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University New Delhi 110067 India
| | | | - Rana P Singh
- School of Life Sciences, Central University of Gujarat Gandhinagar Gujarat India
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University New Delhi 110067 India
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90
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Ramakrishnan L, Pedersen SL, Toe QK, West LE, Mumby S, Casbolt H, Issitt T, Garfield B, Lawrie A, Wort SJ, Quinlan GJ. The Hepcidin/Ferroportin axis modulates proliferation of pulmonary artery smooth muscle cells. Sci Rep 2018; 8:12972. [PMID: 30154413 PMCID: PMC6113242 DOI: 10.1038/s41598-018-31095-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 08/10/2018] [Indexed: 12/22/2022] Open
Abstract
Studies were undertaken to examine any role for the hepcidin/ferroportin axis in proliferative responses of human pulmonary artery smooth muscle cells (hPASMCs). Entirely novel findings have demonstrated the presence of ferroportin in hPASMCs. Hepcidin treatment caused increased proliferation of these cells most likely by binding ferroportin resulting in internalisation and cellular iron retention. Cellular iron content increased with hepcidin treatment. Stabilisation of ferroportin expression and activity via intervention with the therapeutic monoclonal antibody LY2928057 reversed proliferation and cellular iron accumulation. Additionally, IL-6 treatment was found to enhance proliferation and iron accumulation in hPASMCs; intervention with LY2928057 prevented this response. IL-6 was also found to increase hepcidin transcription and release from hPASMCs suggesting a potential autocrine response. Hepcidin or IL-6 mediated iron accumulation contributes to proliferation in hPASMCs; ferroportin mediated cellular iron excretion limits proliferation. Haemoglobin also caused proliferation of hPASMCs; in other novel findings, CD163, the haemoglobin/haptoglobin receptor, was found on these cells and offers a means for cellular uptake of iron via haemoglobin. Il-6 was also found to modulate CD163 on these cells. These data contribute to a better understanding of how disrupted iron homeostasis may induce vascular remodelling, such as in pulmonary arterial hypertension.
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MESH Headings
- Antibodies, Monoclonal/pharmacology
- Antigens, CD/metabolism
- Antigens, Differentiation, Myelomonocytic/metabolism
- Autocrine Communication/drug effects
- Autocrine Communication/physiology
- Cation Transport Proteins/biosynthesis
- Cell Proliferation
- Cells, Cultured
- Gene Expression Regulation/drug effects
- Gene Expression Regulation/physiology
- Hepcidins/biosynthesis
- Humans
- Interleukin-6/metabolism
- Iron/metabolism
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/metabolism
- Pulmonary Artery/cytology
- Pulmonary Artery/metabolism
- Receptors, Cell Surface/metabolism
- Transcription, Genetic/drug effects
- Transcription, Genetic/physiology
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Affiliation(s)
- Latha Ramakrishnan
- Vascular Biology Group, National Heart and Lung Institute, Imperial College London, Faculty of Medicine, Guy Scadding Building, London, SW3 6LY, UK
| | - Sofia L Pedersen
- Vascular Biology Group, National Heart and Lung Institute, Imperial College London, Faculty of Medicine, Guy Scadding Building, London, SW3 6LY, UK
| | - Quezia K Toe
- Vascular Biology Group, National Heart and Lung Institute, Imperial College London, Faculty of Medicine, Guy Scadding Building, London, SW3 6LY, UK
| | - Laura E West
- Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, S10 2RX, Sheffield, UK
| | - Sharon Mumby
- Vascular Biology Group, National Heart and Lung Institute, Imperial College London, Faculty of Medicine, Guy Scadding Building, London, SW3 6LY, UK
| | - Helen Casbolt
- Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, S10 2RX, Sheffield, UK
| | - Theo Issitt
- Vascular Biology Group, National Heart and Lung Institute, Imperial College London, Faculty of Medicine, Guy Scadding Building, London, SW3 6LY, UK
| | - Benjamin Garfield
- Vascular Biology Group, National Heart and Lung Institute, Imperial College London, Faculty of Medicine, Guy Scadding Building, London, SW3 6LY, UK
| | - Allan Lawrie
- Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, S10 2RX, Sheffield, UK
| | - S John Wort
- Vascular Biology Group, National Heart and Lung Institute, Imperial College London, Faculty of Medicine, Guy Scadding Building, London, SW3 6LY, UK
| | - Gregory J Quinlan
- Vascular Biology Group, National Heart and Lung Institute, Imperial College London, Faculty of Medicine, Guy Scadding Building, London, SW3 6LY, UK.
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91
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Na S, Zhang J, Zhou X, Tang A, Huang D, Xu Q, Xue D, Qiu J. Plumbagin-mediating GLUT1 suppresses the growth of human tongue squamous cell carcinoma. Oral Dis 2018; 24:920-929. [PMID: 29080392 DOI: 10.1111/odi.12799] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 10/16/2017] [Accepted: 10/17/2017] [Indexed: 12/14/2022]
Affiliation(s)
- S Na
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - J Zhang
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - X Zhou
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - A Tang
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - D Huang
- Research Institute of Digestive Diseases and Department of Gastroenterology; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - Q Xu
- Research Institute of Digestive Diseases and Department of Gastroenterology; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - D Xue
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - J Qiu
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
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92
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Futuro DO, Ferreira PG, Nicoletti CD, Borba-Santos LP, Silva FCDA, Rozental S, Ferreira VF. The Antifungal Activity of Naphthoquinones: An Integrative Review. AN ACAD BRAS CIENC 2018; 90:1187-1214. [PMID: 29873671 DOI: 10.1590/0001-3765201820170815] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 12/08/2017] [Indexed: 01/05/2023] Open
Abstract
Naphthoquinones are the most commonly occurring type of quinones in nature. They are a diverse family of secondary metabolites that occur naturally in plants, lichens and various microorganisms. This subgroup is constantly being expanded through the discovery of new natural products and by the synthesis of new compounds via innovative techniques. Interest in quinones and the search for new biological activities within the members of this class have intensified in recent years, as evidenced by the evaluation of the potential antimicrobial activities of quinones. Among fungi of medical interest, yeasts of the genus Candida are of extreme importance due to their high frequency of colonization and infection in humans. The objective of this review is to describe the development of naphthoquinones as antifungals for the treatment of Candida species and to note the most promising compounds. By using certain criteria for selection of publications, 68 reports involving both synthetic and natural naphthoquinones are discussed. The activities of a large number of substances were evaluated against Candida albicans as well as against 7 other species of the genus Candida. The results discussed in this review allowed the identification of 30 naphthoquinones with higher antifungal activities than those of the currently used drugs.
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Affiliation(s)
- Débora O Futuro
- Departamento de Tecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Patricia G Ferreira
- PPGCAPS, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Caroline D Nicoletti
- PPGCAPS, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Luana P Borba-Santos
- Centro de Ciências da Saúde, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fernando C DA Silva
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Sonia Rozental
- Centro de Ciências da Saúde, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Vitor Francisco Ferreira
- Departamento de Tecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, RJ, Brazil
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93
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Saravanan P, Anbarasan P. An Electrophilic Trifluoromethylthiolation of Silylenol Ethers and β
-Naphthols with Diethylaminosulfur Trifluoride and (Trifluoromethyl)trimethylsilane. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800366] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Perumal Saravanan
- Department of Chemistry; Indian Institute of Technology Madras; Chennai - 600036
| | - Pazhamalai Anbarasan
- Department of Chemistry; Indian Institute of Technology Madras; Chennai - 600036
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94
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Novel anticancer hybrids from diazen-1-ium-1,2-diolate nitric oxide donor and ROS inducer plumbagin: Design, synthesis and biological evaluations. Eur J Med Chem 2018; 154:1-8. [DOI: 10.1016/j.ejmech.2018.04.047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 04/12/2018] [Accepted: 04/22/2018] [Indexed: 11/20/2022]
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95
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Ramakrishnan L, Pedersen SL, Toe QK, Quinlan GJ, Wort SJ. Pulmonary Arterial Hypertension: Iron Matters. Front Physiol 2018; 9:641. [PMID: 29904352 PMCID: PMC5990599 DOI: 10.3389/fphys.2018.00641] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 05/11/2018] [Indexed: 12/16/2022] Open
Abstract
The interplay between iron and oxygen is longstanding and central to all aerobic life. Tight regulation of these interactions including homeostatic regulation of iron utilization ensures safe usage of this limited resource. However, when control is lost adverse events can ensue, which are known to contribute to an array of disease processes. Recently, associations between disrupted iron homeostasis and pulmonary artery hypertension (PAH) have been described with the suggestion that there is a contributory link with disease. This review provides a background for iron regulation in humans, describes PAH classifications, and discusses emerging literature, which suggests a role for disrupted iron homeostatic control in various sub-types of PAH, including a role for decompartmentalization of hemoglobin. Finally, the potential for therapeutic options to restore iron homeostatic balance in PAH are discussed.
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96
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Highly Efficient Synthesis and Structure-Activity Relationships of a Small Library of Substituted 1,4-Naphthoquinones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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97
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Nakhate KT, Bharne AP, Verma VS, Aru DN, Kokare DM. Plumbagin ameliorates memory dysfunction in streptozotocin induced Alzheimer’s disease via activation of Nrf2/ARE pathway and inhibition of β-secretase. Biomed Pharmacother 2018; 101:379-390. [DOI: 10.1016/j.biopha.2018.02.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 01/31/2018] [Accepted: 02/13/2018] [Indexed: 01/01/2023] Open
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98
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Chen H, Wang H, An J, Shang Q, Ma J. Inhibitory Effects of Plumbagin on Retinal Pigment Epithelial Cell Epithelial-Mesenchymal Transition In Vitro and In Vivo. Med Sci Monit 2018. [PMID: 29532788 PMCID: PMC5861765 DOI: 10.12659/msm.906265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background This study aimed to explore the effects of plumbagin (PLB) on epithelial-to-mesenchymal transition in retinal pigment epithelial (RPE) cells and in proliferative vitreoretinopathy (PVR) rabbit models. Material/Methods Rabbit RPE cells were exposed to various concentrations (0, 5, 15, and 25 μM) of PLB. Motility, migration, and invasion of PLB-treated cells were determined in vitro using Transwell chamber assays and scratch wound assays. The contractile ability was evaluated by cell contraction assay. Expression of matrix metalloproteinases (MMPs) and epithelial-mesenchymal transition (EMT) markers were assessed by western blotting. Furthermore, PLB was injected in rabbit eyes along with RPE cells after gas compression of the vitreous. The presence of PVR was determined by indirect ophthalmoscopy on days 1, 7, 14, and 21 after injection. Also, optical coherence tomography (OCT), ultrasound images, electroretinograms (ERG), and histopathology were used to assess efficacy and toxicity. Results PLB significantly inhibited the migration and invasion of RPE cells. The agent also markedly reduced cell contractive ability. Furthermore, PLB treatment resulted in the decreased expression of MMP-1, MMP2, α-SMA, and the protection of ZO-1. In addition, the PLB-treated eyes showed lower PVR grades than the untreated eyes in rabbit models. PLB exhibited a wide safety margin, indicating no evidence of causing retinal toxicity. Conclusions PLB effectively inhibited the EMT of rabbit RPE cells in vitro and in the experimental PVR models. The results open new avenues for the use of PLB in prevention and treatment of PVR.
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Affiliation(s)
- Haiting Chen
- Department of Ophthalmology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
| | - Huifang Wang
- Department of Ophthalmology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
| | - Jianbin An
- Department of Ophthalmology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
| | - Qingli Shang
- Department of Ophthalmology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
| | - Jingxue Ma
- Department of Ophthalmology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
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99
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Chen H, Wang H, An J, Shang Q, Ma J. Plumbagin induces RPE cell cycle arrest and apoptosis via p38 MARK and PI3K/AKT/mTOR signaling pathways in PVR. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018. [PMID: 29534723 PMCID: PMC5851073 DOI: 10.1186/s12906-018-2155-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Background This study aimed to explore the effects of plumbagin (PLB) on ARPE-19 cells and underlying mechanism. Methods Cultured ARPE-19 cells were treated with various concentrations (0, 5, 15, and 25 μM) of PLB for 24 h or with 15 μM PLB for 12, 24 and 48 h. Then cell viability was evaluated by MTT assay and DAPI staining, while apoptosis and cell cycle progression of ARPE cells were assessed by flow cytometric analysis. Furthermore, the level of main regulatory proteins was examinated by Western boltting and the expression of relative mRNA was tested by Real-Time PCR. Results PLB exhibited potent inducing effects on cell cycle arrest at G2/M phase and apoptosis of ARPE cells via the modulation of Bcl-2 family regulators in a concentration- and time-dependent manner. PLB induced inhibition of phosphatidylinositol 3-kinase (PI3K) and p38 mitogen-activated protein kinase (p38 MAPK) signaling pathways contributing to the anti-proliferative activities in ARPE cells. Conclusions This is the first report to show that PLB could inhibit the proliferation of RPE cells through down-regulation of modulatory signaling pathways. The results open new avenues for the use of PLB in prevention and treatment of proliferative vitreoretinopathy.
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100
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Ghosh SK, Ganta A, Spanjaard RA. Discovery and cellular stress pathway analysis of 1,4-naphthoquinone derivatives with novel, highly potent broad-spectrum anticancer activity. J Biomed Sci 2018; 25:12. [PMID: 29422060 PMCID: PMC5804083 DOI: 10.1186/s12929-018-0408-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 01/15/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chemotherapy and targeted therapies have made important strides in cancer treatment yet they often fail and new therapies are still needed. Here, we employed a phenotypic screen to identify and analyze the mechanism of action of novel small molecules that interfere with critical pathways involved in tumor cell growth, using chemoresistant A375 melanoma cells as a model. METHODS Cell culture studies were performed in ATCC-recommended media. Compounds, and compound libraries were obtained from Boston University or purchased commercially. Effects on A375 cell viability, proliferation and morphology were determined by Celigo Image Cytometer and viability staining. Anticancer activity of the lead compound was tested in a xenograft nude mouse model. Signaling and cell death pathways were analyzed by SDS-PAGE and immunoblotting, and/or fluorescence microscopy. RESULTS After evaluating 4477 compounds, one hit compound CB533 was identified that caused significant reduction of A375 cell growth. CB533 is an unexplored 1,4-naphthoquinone (NQ) derivative which unlike 1,4-NQ, induced rapid cell death without generating reactive oxygen species (ROS). Structure-activity relationship analysis showed that a pyrrolidine in the 1,4-NQ nucleus in lead compound Pyr-1 yielded optimal activity. CB533 and Pyr-1 had growth-suppressing effects on a large variety of chemotherapy-resistant cancer cell lines in the nano to picomolar range. Pyr-1 also significantly reduced growth of MDA-MB-231 breast cancer cells in nude mice. Pyr-1 rapidly induced activation of major stress pathways and autophagy, which was efficiently blocked by ERK, and somewhat by PI3K inhibitors. CONCLUSION CB533 and lead Pyr-1 represent novel broad-spectrum, anticancer compounds that are up to 1000-fold more potent than plumbagin, a natural 1,4-NQ with known anticancer activity. Since the growth suppression activities of CB533 and Pyr-1 are unaffected by the chemotherapy resistance of cancer cells, these compounds have promising therapeutic potential. The pyrrolidine in the 3 position of the 1,4-NQ nucleus of Pyr-1 is a critical component of the pharmacophore. Pyr-1-induced cellular stress was mediated by an ERK, and to a lesser extent by an AKT-dependent pathway without involving apoptosis. Our data suggest that Pyr-1 derives its greatly enhanced antitumor activity via mimicking ROS-induced stress signaling without generating ROS, and likely committing cells to autophagy.
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Affiliation(s)
- Sajal K Ghosh
- Cancer Center, Departments of Otolaryngology, Dermatology and Biochemistry, Boston University School of Medicine, 80 East Concord Street, Boston, MA, 02118, USA
| | - Abhishek Ganta
- Cancer Center, Departments of Otolaryngology, Dermatology and Biochemistry, Boston University School of Medicine, 80 East Concord Street, Boston, MA, 02118, USA
| | - Remco A Spanjaard
- Cancer Center, Departments of Otolaryngology, Dermatology and Biochemistry, Boston University School of Medicine, 80 East Concord Street, Boston, MA, 02118, USA. .,Q-Ring, Inc, Brookline, MA, 02446, USA.
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