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Vimalkumar PS, Sivadas N, Murali VP, Sherin DR, Murali M, Joseph AG, Radhakrishnan KV, Maiti KK. Exploring apoptotic induction of malabaricone A in triple-negative breast cancer cells: an acylphenol phyto-entity isolated from the fruit rind of Myristica malabarica Lam. RSC Med Chem 2024:d4md00391h. [PMID: 39263684 PMCID: PMC11382570 DOI: 10.1039/d4md00391h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 08/20/2024] [Indexed: 09/13/2024] Open
Abstract
Myristica malabarica Lam., commonly known as Malabar nutmeg or false nutmeg, is used in traditional medicine and as a spice. Our exploration focuses on malabaricones, a distinct group of secondary metabolites isolated from the fruit rind of M. malabarica. We investigated the selective cytotoxicity of malabaricones against the triple-negative breast cancer (TNBC) cell line. In particular, malabaricone A (Mal-A) displays heightened toxicity towards TNBC cells (MDA-MB-231), with an IC50 of 8.81 ± 0.03 μM. In vitro fluorimetric assays confirmed the apoptotic capability of Mal-A and its capacity to induce nuclear fragmentation. Additionally, ultrasensitive surface-enhanced Raman spectroscopy confirms DNA fragmentation during cellular apoptosis. Cell cycle analysis indicates arrest during the sub-G0 phase by downregulating key regulatory proteins involved in cell cycle progression. Increased expression levels of caspase 3, 9, and 8 suggest involvement of both extrinsic and intrinsic apoptotic pathways. Finally, assessment of protein expression patterns within apoptotic pathways reveals upregulation of key apoptotic proteins like Fas/FasL, TNF/TNFR1, and p53, coupled with downregulation of several inhibitors of apoptosis proteins such as XIAP, cIAP-2, and Livin. These findings are further verified with in silico molecular docking. Mal-A reveals a strong affinity towards apoptotic proteins, including TNF, Fas, HTRA, Smac, and XIAP, with docking scores ranging from -5.1 to -7.2 kcal mol-1. Subsequently, molecular dynamics simulation confirms the binding stability. This conclusive in vitro evaluation validates Mal-A as a potent phyto-entity against TNBC. To the best of our knowledge, this study represents the first comprehensive anticancer evaluation of Mal-A in TNBC cells.
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Affiliation(s)
- Pothiyil S Vimalkumar
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram-695019 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Neethu Sivadas
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram-695019 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Vishnu Priya Murali
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram-695019 India
| | - Daisy R Sherin
- School of Digital Sciences, Kerala University of Digital Sciences, Innovation and Technology, Digital University Kerala Thiruvananthapuram-695317 India
| | - Madhukrishnan Murali
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram-695019 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Anuja Gracy Joseph
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram-695019 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Kokkuvayil Vasu Radhakrishnan
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram-695019 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Kaustabh Kumar Maiti
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram-695019 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
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Sivadas N, Kaul G, Akhir A, Shukla M, Govind MG, Dan M, Radhakrishnan KV, Chopra S. Naturally Derived Malabaricone B as a Promising Bactericidal Candidate Targeting Multidrug-Resistant Staphylococcus aureus also Possess Synergistic Interactions with Clinical Antibiotics. Antibiotics (Basel) 2023; 12:1483. [PMID: 37887184 PMCID: PMC10604362 DOI: 10.3390/antibiotics12101483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/22/2023] [Accepted: 09/23/2023] [Indexed: 10/28/2023] Open
Abstract
The emergence of multidrug-resistant (MDR) superbugs underlines the urgent need for innovative treatment options to tackle resistant bacterial infections. The clinical efficacy of natural products directed our efforts towards developing new antibacterial leads from naturally abundant known chemical structures. The present study aimed to explore an unusual class of phenylacylphenols (malabaricones) from Myristicamalabarica as antibacterial agents. In vitro antibacterial activity was determined via broth microdilution, cell viability, time-kill kinetics, biofilm eradication, intracellular killing, and checkerboard assays. The efficacy was evaluated in vivo in murine neutropenic thigh and skin infection models. Confocal and SEM analyses were used for mechanistic studies. Among the tested isolates, malabaricone B (NS-7) demonstrated the best activity against S. aureus with a favorable selectivity index and concentration-dependent, rapid bactericidal killing kinetics. It displayed equal efficacy against MDR clinical isolates of S. aureus and Enterococci, efficiently clearing S. aureus in intracellular and biofilm tests, with no detectable resistance. In addition, NS-7 synergized with daptomycin and gentamicin. In vivo, NS-7 exhibited significant efficacy against S. aureus infection. Mechanistically, NS-7 damaged S. aureus membrane integrity, resulting in the release of extracellular ATP. The results indicated that NS-7 can act as a naturally derived bactericidal drug lead for anti-staphylococcal therapy.
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Affiliation(s)
- Neethu Sivadas
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
| | - Grace Kaul
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| | - Abdul Akhir
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| | - Manjulika Shukla
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| | - Murugan Govindakurup Govind
- Department of Plant Genetics Resource, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, Thiruvananthapuram 695562, India
| | - Mathew Dan
- Department of Plant Genetics Resource, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, Thiruvananthapuram 695562, India
| | - Kokkuvayil Vasu Radhakrishnan
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
| | - Sidharth Chopra
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
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Othman MA, Sivasothy Y. Acylphenols and Dimeric Acylphenols from the Genus Myristica: A Review of Their Phytochemistry and Pharmacology. PLANTS (BASEL, SWITZERLAND) 2023; 12:1589. [PMID: 37111813 PMCID: PMC10143527 DOI: 10.3390/plants12081589] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 06/19/2023]
Abstract
The genus Myristica is a medicinally important genus belonging to the Myristicaceae. Traditional medicinal systems in Asia have employed plants from the genus Myristica to treat a variety of ailments. Acylphenols and dimeric acylphenols are a rare group of secondary metabolites, which, to date, have only been identified in the Myristicaceae, in particular, in the genus Myristica. The aim of the review would be to provide scientific evidence that the medicinal properties of the genus Myristica could be attributed to the acylphenols and dimeric acylphenols present in the various parts of its plants and highlight the potential in the development of the acylphenols and dimeric acylphenols as pharmaceutical products. SciFinder-n, Web of Science, Scopus, ScienceDirect, and PubMed were used to conduct the literature search between 2013-2022 on the phytochemistry and the pharmacology of acylphenols and dimeric acylphenols from the genus Myristica. The review discusses the distribution of the 25 acylphenols and dimeric acylphenols within the genus Myristica, their extraction, isolation, and characterization from the respective Myristica species, the structural similarities and differences within each group and between the different groups of the acylphenols and dimeric acylphenols, and their in vitro pharmacological activities.
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Affiliation(s)
- Muhamad Aqmal Othman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
- Centre for Natural Products Research and Drug Discovery (CENAR), University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Yasodha Sivasothy
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Malaysia
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Bauri AK, Du Y, Brodie PJ, Foro S, Kingston DGI. Anti-Proliferative Acyl Phenols and Arylnonanoids from the Fruit Rind of Myristica malabarica Lam. Chem Biodivers 2022; 19:e202200343. [PMID: 36263966 DOI: 10.1002/cbdv.202200343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 10/20/2022] [Indexed: 12/27/2022]
Abstract
Phytochemical investigation of the methanol extract of the fruit rind of Myristica malabarica led to the isolation of eight known compounds that were identified as malabaricones A-D, promalabaricones B and C, 1-(2,6-dihydroxyphenyl)tetradecan-1-one, and ericanone by comparison with literature spectroscopic data. The structures of malabaricones A-D, promalabaricone B, and 1-(2,6-dihydroxyphenyl)tetradecan-1-one were confirmed by X-ray crystallography. In vitro assay of the isolated phenols indicated that they exhibited moderate anti-proliferative activity against the A2780 human ovarian cancer cell. Compounds (1, 3, 5, 6 and 7) had the most potent activities, whereas the anti-proliferative activities of compounds 2 and 4 were less potent.
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Affiliation(s)
- Ajoy Kumar Bauri
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 85, India
| | - Yongle Du
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia, 24061, USA
| | - Peggy Jane Brodie
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia, 24061, USA
| | - Sabine Foro
- Institute of Materials Science, Darmstadt University of Technology, Alarich-Weiss-Strasse 2, D-64287, Darmstadt, Germany
| | - David G I Kingston
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia, 24061, USA
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Gamre S, Tyagi M, Chatterjee S, Patro BS, Chattopadhyay S, Goswami D. Synthesis of Bioactive Diarylheptanoids from Alpinia officinarum and Their Mechanism of Action for Anticancer Properties in Breast Cancer Cells. JOURNAL OF NATURAL PRODUCTS 2021; 84:352-363. [PMID: 33587631 DOI: 10.1021/acs.jnatprod.0c01012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
An efficient synthesis of the Alpinia officinarum-derived diarylheptanoids, viz., enantiomers of a β-hydroxyketone (1) and an α,β-unsaturated ketone (2) was developed starting from commercially available eugenol. Among these, compound 2 showed a superior antiproliferative effect against human breast adenocarcinoma MCF-7 cells. Besides reducing clonogenic cell survival, compound 2 dose-dependently increased the sub G1 cell population and arrested the G2-phase of the cell cycle, as revealed by flow cytometry. Mechanistically, compound 2 acts as an intracellular pro-oxidant by generating copious amounts of reactive oxygen species. Compound 2 also induced both loss of mitochondrial membrane potential (MMP) as well as lysosomal membrane permeabilization (LMP) in the MCF-7 cells. The impaired mitochondrial and lysosomal functions due to reactive oxygen species (ROS)-generation by compound 2 may contribute to its apoptotic property.
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Affiliation(s)
- Sunita Gamre
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India, 400085
| | - Mrityunjay Tyagi
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India, 400085
| | - Sucheta Chatterjee
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India, 400085
| | - Birija S Patro
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India, 400085
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, India, 400094
| | | | - Dibakar Goswami
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India, 400085
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, India, 400094
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Butt H, Mehmood A, Ali M, Tasneem S, Anjum MS, Tarar MN, Khan SN, Riazuddin S. Protective role of vitamin E preconditioning of human dermal fibroblasts against thermal stress in vitro. Life Sci 2017; 184:1-9. [PMID: 28684064 DOI: 10.1016/j.lfs.2017.07.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 06/11/2017] [Accepted: 07/01/2017] [Indexed: 10/19/2022]
Abstract
AIMS Oxidative microenvironment of burnt skin restricts the outcome of cell based therapies of thermal skin injuries. The aim of this study was to precondition human dermal fibroblasts with an antioxidant such as vitamin E to improve their survival and therapeutic abilities in heat induced oxidative in vitro environment. MAIN METHODS Fibroblasts were treated with 100μM vitamin E for 24h at 37°C followed by heat shock for 10min at 51°C in fresh serum free medium. KEY FINDINGS Preconditioning with vitamin E reduced cell injury as demonstrated by decreased expression of annexin-V, cytochrome p450 (CYP450) mediated oxidative reactions, senescence and release of lactate dehydrogenase (LDH) accomplished by down-regulated expression of pro-apoptotic BAX gene. Vitamin E preconditioned cells exhibited remarkable improvement in cell viability, release of paracrine factors such as epidermal growth factor (EGF), basic fibroblast growth factor (bFGF), vascular endothelial growth factor (VEGF), stromal derived factor-1alpha (SDF-1α) and also showed significantly up-regulated levels of PCNA, VEGF, BCL-XL, FGF7, FGF23, FLNβ and Col7α genes presumably through activation of phosphatidylinositol 3-kinase (PI3-K)/Akt pathway. SIGNIFICANCE The results suggest that pretreatment of fibroblasts with vitamin E prior to transplantation in burnt skin speeds up the wound healing process by improving the antioxidant scavenging responses in oxidative environment of transplanted burn wounds.
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Affiliation(s)
- Hira Butt
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road, University of the Punjab, Lahore, Pakistan
| | - Azra Mehmood
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road, University of the Punjab, Lahore, Pakistan
| | - Muhammad Ali
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road, University of the Punjab, Lahore, Pakistan
| | - Saba Tasneem
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road, University of the Punjab, Lahore, Pakistan
| | - Muhammad Sohail Anjum
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road, University of the Punjab, Lahore, Pakistan
| | - Moazzam N Tarar
- Allama Iqbal Medical College, University of Health Sciences, Lahore, Pakistan
| | - Shaheen N Khan
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road, University of the Punjab, Lahore, Pakistan
| | - Sheikh Riazuddin
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road, University of the Punjab, Lahore, Pakistan; Allama Iqbal Medical College, University of Health Sciences, Lahore, Pakistan; Shaheed Zulfiqar Ali Bhutto Medical University (SZABMU), Islamabad, Pakistan.
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Kundu K, Nayak SK. Total Syntheses of Malabaricones B and C via a Cross-Metathesis Strategy. JOURNAL OF NATURAL PRODUCTS 2017; 80:1776-1782. [PMID: 28581739 DOI: 10.1021/acs.jnatprod.6b01119] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The malabaricones A-D belong to the class of diarylnonanoids isolated from the Myristicaceae family of plants. Although malabaricone C displayed various interesting biological activities, its isolation remains tedious due to its close chemical similarity to malabaricones A, B, and D. Therefore, development of an efficient synthesis route has become essential to cater to the need of large amounts of malabaricone C for its pharmacological profiling. So far there is only one report of the synthesis of malabaricone C through a lengthy sequence of reactions. We have developed an efficient and short route for the syntheses of malabaricones B and C, which will also provide a convenient access to all other members of the malabaricone family. Synthesis of an important building block, ω-aryl heptyl bromide, employed in the synthesis was realized by adopting a cross-metathesis reaction as the key step.
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Affiliation(s)
- Kshama Kundu
- Bio-Organic Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
| | - Sandip K Nayak
- Bio-Organic Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
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Ding X, Bai Y, Zhu X, Li T, Jin E, Huang L, Yu W, Zhao M. The effects of pleiotrophin in proliferative vitreoretinopathy. Graefes Arch Clin Exp Ophthalmol 2017; 255:873-884. [DOI: 10.1007/s00417-016-3582-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 12/19/2016] [Accepted: 12/29/2016] [Indexed: 11/29/2022] Open
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Bauri AK, Foro S, Do NQN. Crystal structure of an aryl cyclo-hexyl nona-noid, an anti-proliferative mol-ecule isolated from the spice Myristica malabarica. Acta Crystallogr E Crystallogr Commun 2016; 72:1408-1411. [PMID: 27746930 PMCID: PMC5050765 DOI: 10.1107/s2056989016013797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 08/29/2016] [Indexed: 11/16/2022]
Abstract
The title compound, C21H26O5, an aryl cyclo-hexyl nona-noid {systematic name: 3,5-dihy-droxy-2-[9-(4-hy-droxy-phen-yl)nona-noyl]cyclo-hexa-2,4-dien-1-one}, extracted from the spice plant Myristica malabarica comprises two ring components, a 4-hy-droxy-phenyl moiety and a 3,5-di-hydroxy-cyclo-hexa-2,4-dienone moiety linked by a nona-noyl chain. The mol-ecule has an extended essentially planar conformation stabilized by an intra-molecular hy-droxy O-H⋯Ocarbon-yl hydrogen bond, giving a dihedral angle between the two ring systems of 6.37 (15)°. The C, O and H atoms associated with one of the hy-droxy groups of the cyclo-hexa-dienone component are disordered over two sets of sites with site occupancies of 0.6972 and 0.3028. In the crystal, hy-droxy O-H⋯O hydrogen bonds to carbonyl O-atom acceptors form large centrosymmetric R22(36) cyclic dimers, which are further extended into supra-molecular one-dimensional ribbon structures along [1-11].
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Affiliation(s)
- Ajoy Kumar Bauri
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Sabine Foro
- Institute of Materials Science, Darmstadt University of Technology, Alarich-Weiss-Strasse 2, D-64287 Darmstadt, Germany
| | - Nhu Quynh Nguyen Do
- Accident and Emergency Department, Franco Vietnamese Hospital, 7 Nguyen Luong Bang Street, Ho Chi Minh City, Vietnam
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