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Mahamed S, Motal R, Govender T, Dlamini N, Khuboni K, Hadeb Z, Shaik BB, Moodley K, Balaso Mohite S, Karpoormath R. A concise review on marine bromopyrrole alkaloids as anticancer agents. Bioorg Med Chem Lett 2023; 80:129102. [PMID: 36496202 DOI: 10.1016/j.bmcl.2022.129102] [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: 08/29/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Natural products have been the most important sources of chemically diverse raw materials that have inspired pharmaceutical discoveries over the past few decades. Many pharmaceutical companies are utilizing plant extracts to develop relatively crude therapeutic formulations. The interesting chemicals identified as natural products are derived from the phenomenon of biodiversity, where the interactions between the organisms and their environment formulate the diverse and complex chemical entities within them that enhance their survival and competitiveness. Marine sponges are rich sources of natural products and have provided an infinite supply of bioactive metabolites. Bromopyrrole alkaloids are a good example of marine metabolites, have a broad range of biological activity, and represent a fascinating example of chemical diversity of secondary metabolites elaborated by marine invertebrates. The isolation and synthesis of this structural class have been investigated, resulting in a series of bromopyrrole alkaloids with potential lead hits. This review presents the detailed isolation and anticancer activity of marine bromopyrrole alkaloids, and will be of interest to the wider research community both in academic and industrial settings.
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Affiliation(s)
- Safia Mahamed
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Raeesa Motal
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Titus Govender
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Nompilo Dlamini
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Kwanele Khuboni
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Zamahlubi Hadeb
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Baji Baba Shaik
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Kimeshni Moodley
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Sachin Balaso Mohite
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Rajshekhar Karpoormath
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa.
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From Seabed to Bedside: A Review on Promising Marine Anticancer Compounds. Biomolecules 2020; 10:biom10020248. [PMID: 32041255 PMCID: PMC7072248 DOI: 10.3390/biom10020248] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/29/2020] [Accepted: 02/04/2020] [Indexed: 02/08/2023] Open
Abstract
The marine environment represents an outstanding source of antitumoral compounds and, at the same time, remains highly unexplored. Organisms living in the sea synthesize a wide variety of chemicals used as defense mechanisms. Interestingly, a large number of these compounds exert excellent antitumoral properties and have been developed as promising anticancer drugs that have later been approved or are currently under validation in clinical trials. However, due to the high need for these compounds, new methodologies ensuring its sustainable supply are required. Also, optimization of marine bioactives is an important step for their success in the clinical setting. Such optimization involves chemical modifications to improve their half-life in circulation, potency and tumor selectivity. In this review, we outline the most promising marine bioactives that have been investigated in cancer models and/or tested in patients as anticancer agents. Moreover, we describe the current state of development of anticancer marine compounds and discuss their therapeutic limitations as well as different strategies used to overcome these limitations. The search for new marine antitumoral agents together with novel identification and chemical engineering approaches open the door for novel, more specific and efficient therapeutic agents for cancer treatment.
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Zheng J, McKinnie SMK, El Gamal A, Feng W, Dong Y, Agarwal V, Fenical W, Kumar A, Cao Z, Moore BS, Pessah IN. Organohalogens Naturally Biosynthesized in Marine Environments and Produced as Disinfection Byproducts Alter Sarco/Endoplasmic Reticulum Ca 2+ Dynamics. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:5469-5478. [PMID: 29617551 PMCID: PMC6195434 DOI: 10.1021/acs.est.8b00512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Contemporary sources of organohalogens produced as disinfection byproducts (DBPs) are receiving considerable attention as emerging pollutants because of their abundance, persistence, and potential to structurally mimic natural organohalogens produced by bacteria that serve signaling or toxicological functions in marine environments. Here, we tested 34 organohalogens from anthropogenic and marine sources to identify compounds active toward ryanodine receptor (RyR1), known toxicological targets of non-dioxin-like polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs). [3H]Ryanodine ([3H]Ry) binding screening (≤2 μM) identified 10 highly active organohalogens. Further analysis indicated that 2,3-dibromoindole (14), tetrabromopyrrole (31), and 2,3,5-tribromopyrrole (34) at 10 μM were the most efficacious at enhancing [3H]Ry binding. Interestingly, these congeners also inhibited microsomal sarcoplasmic/endoplasmic reticulum (SR/ER) Ca2+ ATPase (SERCA1a). Dual SERCA1a inhibition and RyR1 activation triggered Ca2+ efflux from microsomal vesicles with initial rates rank ordered 31 > 34 > 14. Hexabromobipyrroles (25) enhanced [3H]Ry binding moderately with strong SERCA1a inhibition, whereas pyrrole (24), 2,3,4-tribromopyrrole (26), and ethyl-4-bromopyrrole-2-carboxylate (27) were inactive. Of three PBDE derivatives of marine origin active in the [3H]Ry assay, 4'-hydroxy-2,3',4,5',6-pentabromodiphenyl ether (18) was also a highly potent SERCA1a inhibitor. Molecular targets of marine organohalogens that are also DBPs of emerging environmental concern are likely to contribute to their toxicity.
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Affiliation(s)
- Jing Zheng
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
- Department of TCM Pharmacology, School of Traditional Chinese Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Shaun M. K. McKinnie
- Center for Oceans and Human Health, Scripps Institution of Oceanography & Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093-0021, United States
| | - Abrahim El Gamal
- Center for Oceans and Human Health, Scripps Institution of Oceanography & Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093-0021, United States
| | - Wei Feng
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
| | - Yao Dong
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
| | | | | | - Abdhesh Kumar
- Center for Oceans and Human Health, Scripps Institution of Oceanography & Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093-0021, United States
| | - Zhengyu Cao
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
- Department of TCM Pharmacology, School of Traditional Chinese Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Bradley S. Moore
- Center for Oceans and Human Health, Scripps Institution of Oceanography & Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093-0021, United States
| | - Isaac N. Pessah
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
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Choudhary A, Naughton LM, Montánchez I, Dobson ADW, Rai DK. Current Status and Future Prospects of Marine Natural Products (MNPs) as Antimicrobials. Mar Drugs 2017; 15:md15090272. [PMID: 28846659 PMCID: PMC5618411 DOI: 10.3390/md15090272] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 08/12/2017] [Accepted: 08/23/2017] [Indexed: 12/31/2022] Open
Abstract
The marine environment is a rich source of chemically diverse, biologically active natural products, and serves as an invaluable resource in the ongoing search for novel antimicrobial compounds. Recent advances in extraction and isolation techniques, and in state-of-the-art technologies involved in organic synthesis and chemical structure elucidation, have accelerated the numbers of antimicrobial molecules originating from the ocean moving into clinical trials. The chemical diversity associated with these marine-derived molecules is immense, varying from simple linear peptides and fatty acids to complex alkaloids, terpenes and polyketides, etc. Such an array of structurally distinct molecules performs functionally diverse biological activities against many pathogenic bacteria and fungi, making marine-derived natural products valuable commodities, particularly in the current age of antimicrobial resistance. In this review, we have highlighted several marine-derived natural products (and their synthetic derivatives), which have gained recognition as effective antimicrobial agents over the past five years (2012–2017). These natural products have been categorized based on their chemical structures and the structure-activity mediated relationships of some of these bioactive molecules have been discussed. Finally, we have provided an insight into how genome mining efforts are likely to expedite the discovery of novel antimicrobial compounds.
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Affiliation(s)
- Alka Choudhary
- Department of Food Biosciences, Teagasc Food Research Centre Ashtown, Dublin D15 KN3K, Ireland.
| | - Lynn M Naughton
- School of Microbiology, University College Cork, Western Road, Cork City T12 YN60, Ireland.
| | - Itxaso Montánchez
- Department of Immunology, Microbiology and Parasitology, Faculty of Science, University of the Basque Country, (UPV/EHU), 48940 Leioa, Spain.
| | - Alan D W Dobson
- School of Microbiology, University College Cork, Western Road, Cork City T12 YN60, Ireland.
| | - Dilip K Rai
- Department of Food Biosciences, Teagasc Food Research Centre Ashtown, Dublin D15 KN3K, Ireland.
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Rane RA, Nandave M, Nayak S, Naik A, Shah D, Alwan WS, Sahu NU, Naphade SS, Palkar MB, Karunanidhi S, Thapliyal N, Karpoormath R. Synthesis and pharmacological evaluation of marine bromopyrrole alkaloid-based hybrids with anti-inflammatory activity. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2014.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Domagala A, Jarosz T, Lapkowski M. Living on pyrrolic foundations – Advances in natural and artificial bioactive pyrrole derivatives. Eur J Med Chem 2015; 100:176-87. [DOI: 10.1016/j.ejmech.2015.06.009] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 06/02/2015] [Accepted: 06/03/2015] [Indexed: 11/29/2022]
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A coralline algal-associated bacterium, pseudoalteromonas strain J010, yields five new korormicins and a bromopyrrole. Mar Drugs 2014; 12:2802-15. [PMID: 24828288 PMCID: PMC4052317 DOI: 10.3390/md12052802] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 04/23/2014] [Accepted: 04/24/2014] [Indexed: 11/16/2022] Open
Abstract
The ethanol extract of Pseudoalteromonas strain J010, isolated from the surface of the crustose coralline alga Neogoniolithon fosliei, yielded thirteen natural products. These included a new bromopyrrole, 4′-((3,4,5-tribromo-1H-pyrrol-2-yl)methyl)phenol (1) and five new korormicins G–K (2–6). Also isolated was the known inducer of coral larval metamorphosis, tetrabromopyrrole (TBP), five known korormicins (A–E, previously named 1, 1a–c and 3) and bromoalterochromide A (BAC-A). Structures of the new compounds were elucidated through interpretation of spectra obtained after extensive NMR and MS investigations and comparison with literature values. The antibacterial, antifungal and antiprotozoal potential of 1–6, TBP and BAC-A was assessed. Compounds 1–6 showed antibacterial activity while BAC-A exhibited antiprotozoal properties against Tetrahymena pyriformis. TBP was found to have broad-spectrum activity against all bacteria, the protozoan and the fungus Candida albicans.
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Rane RA, Napahde S, Bangalore PK, Sahu NU, Shah N, Kulkarni YA, Barve K, Lokare L, Karpoormath R. Synthesis and evaluation of novel marine bromopyrrole alkaloid-based derivatives as potential antidepressant agents. Chem Biol Drug Des 2014; 84:593-602. [PMID: 24797717 DOI: 10.1111/cbdd.12352] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Revised: 02/19/2014] [Accepted: 04/22/2014] [Indexed: 11/26/2022]
Abstract
Herein, we report synthesis and screening of a series of twenty derivatives of bromopyrrole alkaloids with aroyl hydrazone feature for antidepressant activity by forced swim test (FST), tail suspension test (TST), and actophotometer method. The molecules were further evaluated for in vitro human MAO's inhibitory activities. The tested compounds exhibited moderate to good antidepressant activity compared with standard fluoxetine. Among these, most promising antidepressant derivatives 5b (%DID = 60.48), 5e (%DID = 59), and 5j (%DID = 74.86) reduced immobility duration of 50-70% at 30 mg/kg dose levels in FST. Further, derivative 5b, 5e, and 5j displayed good antidepressant activity with %DID value of 47.50, 46.62, and 52.49, respectively, in TST compared with standard fluoxetine (66.56% DID). Compound 5b showed high in vitro MAO-A potency and selectivity (Ki MAO-A (μM) = 2.4 ± 0.99, SI = 0.06) with promising pharmacological activity recognizing its potential as antidepressant lead candidate for further drug development. Study revealed that the presence of halogen atoms such as chlorine and fluorine at ortho- and/or para-position of phenyl ring and N-alkylation of pyrrole core is favored features for antidepressant activity.
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Affiliation(s)
- Rajesh A Rane
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, 4001, South Africa
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Rane RA, Sahu NU, Shah CP, Shah NK. Design, synthesis and antistaphylococcal activity of marine pyrrole alkaloid derivatives. J Enzyme Inhib Med Chem 2013; 29:401-7. [PMID: 23663080 DOI: 10.3109/14756366.2013.793183] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A novel set of 16 hybrids of bromopyrrole alkaloids with aroyl hydrazone were designed, synthesized and evaluated for antibacterial and antibiofilm activities against methicillin-resistant Staphylococcus aureus (MRSA; ATCC 43866), methicillin-susceptible Staphylococcus aureus (MSSA; ATCC 35556) and Staphylococcus epidermidis (SE, S. epidermidis ATCC 35984). Of the 16 tested hybrids, 14 exhibited equal or superior antibiofilm activity against MSSA and MRSA relative to standard vancomycin. Compound 4m showed highest potency with antibiofilm activity of 0.39 µg/mL and 0.78 µg/mL against MSSA and MRSA, respectively. Thus, this compound could act as a potential lead for further development of new antistaphylococcal drugs.
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Affiliation(s)
- Rajesh A Rane
- S. P. P. School of Pharmacy and Technology Management, NMIMS university , Mumbai , India
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Rane RA, Sahu NU, Gutte SD, Mahajan AA, Shah CP, Bangalore P. Synthesis and evaluation of novel marine bromopyrrole alkaloid-based hybrids as anticancer agents. Eur J Med Chem 2013; 63:793-9. [DOI: 10.1016/j.ejmech.2013.03.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 03/13/2013] [Accepted: 03/15/2013] [Indexed: 11/29/2022]
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Synthesis and evaluation of novel 1,3,4-oxadiazole derivatives of marine bromopyrrole alkaloids as antimicrobial agent. Bioorg Med Chem Lett 2012; 22:6429-32. [DOI: 10.1016/j.bmcl.2012.08.061] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 07/18/2012] [Accepted: 08/16/2012] [Indexed: 11/17/2022]
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A survey of marine natural compounds and their derivatives with anti-cancer activity reported in 2010. Molecules 2011; 16:5629-46. [PMID: 21993222 PMCID: PMC6264395 DOI: 10.3390/molecules16075629] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 05/31/2011] [Accepted: 05/31/2011] [Indexed: 12/12/2022] Open
Abstract
Although considerable progress in oncology therapeutics has been achieved in the last century, cancer remains one of major death causes in the World and for this reason, the development of novel cancer drugs remains a pressing need. Natural marine compounds represent an interesting source of novel leads with potent chemotherapeutic or chemo-preventive activities. In the last decades, structure-activity-relationship studies have led to the development of naturally-derived or semi-synthetic analogues with improved bioactivity, a simplified synthetic target or less toxicity. We aim here to review a selection of natural compounds with reported anticancer activity isolated of marine sources and their associated analogues published in 2010.
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Gold from the sea: marine compounds as inhibitors of the hallmarks of cancer. Biotechnol Adv 2011; 29:531-47. [PMID: 21371549 DOI: 10.1016/j.biotechadv.2011.02.002] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 02/17/2011] [Accepted: 02/22/2011] [Indexed: 12/12/2022]
Abstract
Cancer is one of the most deadly diseases in the world. Although advances in the field of chemo-preventive and therapeutic medicine have been made regularly over the last ten years, the search for novel anticancer treatments continues. In this field, the marine environment, with its rich variety of organisms, is a largely untapped source of novel compounds with potent antitumor activity. Although many reviews of marine anticancer compounds have been published, we focus here on selected marine compounds that act on the six hallmarks of cancer presented namely self-sufficiency in growth signals, insensitivity to anti-growth signals, evasion of apoptosis, limitless replication, sustained angiogenesis and tissue invasion and metastasis.
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