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Cock IE, Cheesman MJ. A Review of the Antimicrobial Properties of Cyanobacterial Natural Products. Molecules 2023; 28:7127. [PMID: 37894609 PMCID: PMC10608859 DOI: 10.3390/molecules28207127] [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: 09/29/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
The development of multiple-drug-resistant pathogens has prompted medical research toward the development of new and effective antimicrobial therapies. Much research into novel antibiotics has focused on bacterial and fungal compounds, and on chemical modification of existing compounds to increase their efficacy or reactivate their antimicrobial properties. In contrast, cyanobacteria have been relatively overlooked for antibiotic discovery, and much more work is required. This may be because some cyanobacterial species produce environmental toxins, leading to concerns about the safety of cyanobacterial compounds in therapy. Despite this, several cyanobacterial-derived compounds have been identified with noteworthy inhibitory activity against bacterial, fungal and protozoal growth, as well as viral replication. Additionally, many of these compounds have relatively low toxicity and are therefore relevant targets for drug development. Of particular note, several linear and heterocyclic peptides and depsipeptides with potent activity and good safety indexes have been identified and are undergoing development as antimicrobial chemotherapies. However, substantial further studies are required to identify and screen the myriad other cyanobacterial-derived compounds to evaluate their therapeutic potential. This study reviews the known phytochemistry of cyanobacteria, and where relevant, the effects of those compounds against bacterial, fungal, protozoal and viral pathogens, with the aim of highlighting gaps in the literature and focusing future studies in this field.
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Affiliation(s)
- Ian E. Cock
- Centre for Planetary Health and Food Security, Griffith University, Brisbane, QLD 4111, Australia
| | - Matthew J. Cheesman
- School of Pharmacy and Medical Sciences, Griffith University, Southport, QLD 4222, Australia;
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2
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Lipopolysaccharide from the Cyanobacterium Geitlerinema sp. Induces Neutrophil Infiltration and Lung Inflammation. Toxins (Basel) 2022; 14:toxins14040267. [PMID: 35448876 PMCID: PMC9024439 DOI: 10.3390/toxins14040267] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 11/17/2022] Open
Abstract
Glucocorticoid-resistant asthma, which predominates with neutrophils instead of eosinophils, is an increasing health concern. One potential source for the induction of neutrophil-predominant asthma is aerosolized lipopolysaccharide (LPS). Cyanobacteria have recently caused significant tidal blooms, and aerosolized cyanobacterial LPS has been detected near the cyanobacterial overgrowth. We hypothesized that cyanobacterial LPS contributes to lung inflammation by increasing factors that promote lung inflammation and neutrophil recruitment. To test this hypothesis, c57Bl/6 mice were exposed intranasally to LPS from the cyanobacterium member, Geitlerinema sp., in vivo to assess neutrophil infiltration and the production of pro-inflammatory cytokines and chemokines from the bronchoalveolar fluid by ELISA. Additionally, we exposed the airway epithelial cell line, A549, to Geitlerinema sp. LPS in vitro to confirm that airway epithelial cells were stimulated by this LPS to increase cytokine production and the expression of the adhesion molecule, ICAM-1. Our data demonstrate that Geitlerinema sp. LPS induces lung neutrophil infiltration, the production of pro-inflammatory cytokines such as Interleukin (IL)-6, Tumor necrosis factor-alpha, and Interferongamma as well as the chemokines IL-8 and RANTES. Additionally, we demonstrate that Geitlerinema sp. LPS directly activates airway epithelial cells to produce pro-inflammatory cytokines and the adhesion molecule, Intercellular Adhesion Molecule-1 (ICAM-1), in vitro using the airway epithelial cell line, A549. Based on our findings that use Geitlerinema sp. LPS as a model system, the data indicate that cyanobacteria LPS may contribute to the development of glucocorticoid-resistant asthma seen near water sources that contain high levels of cyanobacteria.
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Cheng H, Zhang D, Ren L, Song Z, Li Q, Wu J, Fang W, Huang B, Yan D, Li Y, Wang Q, Cao A. Bio-activation of soil with beneficial microbes after soil fumigation reduces soil-borne pathogens and increases tomato yield. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 283:117160. [PMID: 33878684 DOI: 10.1016/j.envpol.2021.117160] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/21/2021] [Accepted: 04/12/2021] [Indexed: 05/20/2023]
Abstract
Soil-borne diseases have become increasingly problematic for farmers producing crops intensively under protected agriculture. Although soil fumigants are convenient and effective for minimizing the impact of soil-borne disease, they are most often detrimental to beneficial soil microorganisms. Previous research showed that bio-activation of soil using biological control agents present in biofertilizers or organic fertilizers offered promise as a strategy for controlling soil-borne pathogens when the soil was bio-activated after fumigation. Our research sought to determine how bio-activation can selectively inhibit pathogens while promoting the recovery of beneficial microbes. We monitored changes in the soil's physicochemical properties, its microbial community and reductions in soil-borne pathogens. We found that the population density of Fusarium and Phytophthora were significantly reduced and tomato yield was significantly increased when the soil was bio-activated. Soil pH and soil catalase activity were significantly increased, and the soil's microbial community structure was changed, which may have enhanced the soil's ability to reduce Fusarium and Phytophthora. Our results showed that soil microbial diversity and relative abundance of beneficial microorganisms (such as Sphingomonas, Bacillus, Mortierella and Trichoderma) increased shortly after bio-activation of the soil, and were significantly and positively correlated with pathogen suppression. The reduction in pathogens may have been due to a combination of fumigation-fertilizer that reduced pathogens directly, or the indirect effect of an optimized soil microbiome that improved the soil's non-biological factors (such as soil pH, fertility structure), enhanced the soil's functional properties and increased tomato yield.
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Affiliation(s)
- Hongyan Cheng
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Daqi Zhang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Lirui Ren
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Zhaoxin Song
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Laboratory of Integrated and Urban Phytopathology, University of Liege, Gembloux Agro-Bio Tech, Passage des Deportes 2, 5030, Gembloux, Belgium
| | - Qingjie Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Jiajia Wu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Wensheng Fang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Bin Huang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Institute of Tobacco Research, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Dongdong Yan
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Beijing Innovation Consortium of Agriculture Research System, Beijing, 100029, China
| | - Yuan Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Beijing Innovation Consortium of Agriculture Research System, Beijing, 100029, China
| | - Qiuxia Wang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Beijing Innovation Consortium of Agriculture Research System, Beijing, 100029, China
| | - Aocheng Cao
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Beijing Innovation Consortium of Agriculture Research System, Beijing, 100029, China.
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4
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Girija A, Vijayanathan M, Sreekumar S, Basheer J, Menon TG, Krishnankutty RE, Soniya EV. Harnessing the natural pool of polyketide and non-ribosomal peptide family: A route map towards novel drug development. Curr Mol Pharmacol 2021; 15:265-291. [PMID: 33745440 DOI: 10.2174/1874467214666210319145816] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/10/2020] [Accepted: 12/31/2020] [Indexed: 11/22/2022]
Abstract
Emergence of communicable and non-communicable diseases possess health challenge to millions of people worldwide and is a major threat to the economic and social development in the coming century. The occurrence of recent pandemic, SARS-CoV-2 caused by lethal severe acute respiratory syndrome coronavirus 2 is one such example. Rapid research and development of drugs for the treatment and management of these diseases has been an incredibly challenging task for the pharmaceutical industry. Although, substantial focus has been made in the discovery of therapeutic compounds from natural sources having significant medicinal potential, their synthesis has shown a slow progress. Hence, the discovery of new targets by the application of the latest biotechnological and synthetic biology approaches is very much the need of the hour. Polyketides (PKs) and non-ribosomal peptides (NRPs) found in bacteria, fungi and plants are a large diverse family of natural products synthesized by two classes of enzymes: polyketide synthases (PKS) and non-ribosomal peptide synthetases (NRPS). These enzymes possess immense biomedical potential due to their simple architecture, catalytic capacity, as well as diversity. With the advent of latest in-silico and in-vitro strategies, these enzymes and their related metabolic pathways, if targeted, can contribute highly towards the biosynthesis of an array of potentially natural drug leads that have antagonist effects on biopolymers associated with various human diseases. In the face of the rising threat from the multidrug-resistant pathogens, this will further open new avenues for the discovery of novel and improved drugs by combining the natural and the synthetic approaches. This review discusses the relevance of polyketides and non-ribosomal peptides and the improvement strategies for the development of their derivatives and scaffolds, and how they will be beneficial to the future bioprospecting and drug discovery.
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Affiliation(s)
- Aiswarya Girija
- Transdisciplinary Biology, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India.,Institute of Biological Environmental Rural Sciences (IBERS), Aberystwyth University, United Kingdom
| | - Mallika Vijayanathan
- Transdisciplinary Biology, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India.,Biology Centre - Institute of Plant Molecular Biology, Czech Academy of Sciences, České Budějovice, 370 05, Czech Republic
| | - Sweda Sreekumar
- Transdisciplinary Biology, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India.,Research Centre, University of Kerala, India
| | - Jasim Basheer
- School of Biosciences, Mahatma Gandhi University, PD Hills, Kottayam, Kerala, India.,Department of Cell Biology, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacky University, Olomouc, Czech Republic
| | - Tara G Menon
- Transdisciplinary Biology, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India
| | | | - Eppurathu Vasudevan Soniya
- Transdisciplinary Biology, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India
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Iwasaki A, Tadenuma T, Sumimoto S, Shiota I, Matsubara T, Saito-Nakano Y, Nozaki T, Sato T, Suenaga K. Hoshinoamides A and B, Acyclic Lipopeptides from the Marine Cyanobacterium Caldora penicillata. JOURNAL OF NATURAL PRODUCTS 2018; 81:2545-2552. [PMID: 30387355 DOI: 10.1021/acs.jnatprod.8b00643] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hoshinoamides A (1) and B (2), new acyclic lipopeptides, were isolated from the marine cyanobacterium Caldora penicillata. Their structures were elucidated by spectroscopic analyses and degradation reactions. Hoshinoamides A (1) and B (2) did not exhibit any cytotoxicity against HeLa cells at 10 μM, but inhibited the in vitro growth of the malarial parasite Plasmodium falciparum (IC50 = 0.52 and 1.0 μM, respectively).
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Affiliation(s)
- Arihiro Iwasaki
- Department of Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa 223-8522 , Japan
| | - Takato Tadenuma
- Department of Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa 223-8522 , Japan
| | - Shimpe Sumimoto
- Department of Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa 223-8522 , Japan
| | - Ikuma Shiota
- Department of Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa 223-8522 , Japan
| | - Teruhiko Matsubara
- Department of Biosciences and Informatics, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa 223-8522 , Japan
| | - Yumiko Saito-Nakano
- Department of Parasitology , National Institute of Infectious Diseases , 1-23-1 Toyama, Shinjuku-ku , Tokyo 162-8640 , Japan
| | - Tomoyoshi Nozaki
- Department of Biomedical Chemistry, Graduate School of Medicine , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Toshinori Sato
- Department of Biosciences and Informatics, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa 223-8522 , Japan
| | - Kiyotake Suenaga
- Department of Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa 223-8522 , Japan
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Gogineni V, Hamann MT. Marine natural product peptides with therapeutic potential: Chemistry, biosynthesis, and pharmacology. Biochim Biophys Acta Gen Subj 2018; 1862:81-196. [PMID: 28844981 PMCID: PMC5918664 DOI: 10.1016/j.bbagen.2017.08.014] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 08/07/2017] [Accepted: 08/09/2017] [Indexed: 12/21/2022]
Abstract
The oceans are a uniquely rich source of bioactive metabolites, of which sponges have been shown to be among the most prolific producers of diverse bioactive secondary metabolites with valuable therapeutic potential. Much attention has been focused on marine bioactive peptides due to their novel chemistry and diverse biological properties. As summarized in this review, marine peptides are known to exhibit various biological activities such as antiviral, anti-proliferative, antioxidant, anti-coagulant, anti-hypertensive, anti-cancer, antidiabetic, antiobesity, and calcium-binding activities. This review focuses on the chemistry and biology of peptides isolated from sponges, bacteria, cyanobacteria, fungi, ascidians, and other marine sources. The role of marine invertebrate microbiomes in natural products biosynthesis is discussed in this review along with the biosynthesis of modified peptides from different marine sources. The status of peptides in various phases of clinical trials is presented, as well as the development of modified peptides including optimization of PK and bioavailability.
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Affiliation(s)
- Vedanjali Gogineni
- Department of BioMolecular Sciences, Division of Medicinal Chemistry, School of Pharmacy, The University of Mississippi, University, MS, United States.
| | - Mark T Hamann
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy and Public Health Sciences, Medical University of South Carolina, Charleston, SC, United States.
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Agrawal S, Acharya D, Adholeya A, Barrow CJ, Deshmukh SK. Nonribosomal Peptides from Marine Microbes and Their Antimicrobial and Anticancer Potential. Front Pharmacol 2017; 8:828. [PMID: 29209209 PMCID: PMC5702503 DOI: 10.3389/fphar.2017.00828] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 10/31/2017] [Indexed: 11/13/2022] Open
Abstract
Marine environments are largely unexplored and can be a source of new molecules for the treatment of many diseases such as malaria, cancer, tuberculosis, HIV etc. The Marine environment is one of the untapped bioresource of getting pharmacologically active nonribosomal peptides (NRPs). Bioprospecting of marine microbes have achieved many remarkable milestones in pharmaceutics. Till date, more than 50% of drugs which are in clinical use belong to the nonribosomal peptide or mixed polyketide-nonribosomal peptide families of natural products isolated from marine bacteria, cyanobacteria and fungi. In recent years large numbers of nonribosomal have been discovered from marine microbes using multi-disciplinary approaches. The present review covers the NRPs discovered from marine microbes and their pharmacological potential along with role of genomics, proteomics and bioinformatics in discovery and development of nonribosomal peptides drugs.
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Affiliation(s)
- Shivankar Agrawal
- Biotechnology and Management of Bioresources Division, TERI-Deakin Nano Biotechnology Centre, Energy and Resources Institute, New Delhi, India.,Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences, Deakin University, Waurn Ponds, VIC, Australia
| | - Debabrata Acharya
- Biotechnology and Management of Bioresources Division, TERI-Deakin Nano Biotechnology Centre, Energy and Resources Institute, New Delhi, India
| | - Alok Adholeya
- Biotechnology and Management of Bioresources Division, TERI-Deakin Nano Biotechnology Centre, Energy and Resources Institute, New Delhi, India
| | - Colin J Barrow
- Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences, Deakin University, Waurn Ponds, VIC, Australia
| | - Sunil K Deshmukh
- Biotechnology and Management of Bioresources Division, TERI-Deakin Nano Biotechnology Centre, Energy and Resources Institute, New Delhi, India
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8
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Srivastava A, Singh VK, Patnaik S, Tripathi J, Singh P, Nath G, Asthana RK. Antimicrobial assay and genetic screening of selected freshwater Cyanobacteria and identification of a biomolecule dihydro-2H-pyran-2-one derivative. J Appl Microbiol 2017; 122:881-892. [PMID: 28004519 DOI: 10.1111/jam.13385] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 11/24/2016] [Accepted: 12/16/2016] [Indexed: 12/19/2022]
Abstract
AIMS Explorations of freshwater Cyanobacteria as antimicrobial (bacteria, fungi and methicillin-resistant Staphylococcus aureus (MRSA) strains) drug resource using bioassay, NRPS (non-ribosomal polypeptide synthetase) and PKS (polyketide synthase) genes, as well as in silico approach. METHODS AND RESULTS We have bioassayed the extracts of Phormidium CCC727, Geitlerinema CCC728, Arthrospira CCC729, Leptolyngbya CCC732, Phormidium CCC730, Phormidium CCC731 against six pathogenic bacteria comprising Gram (+ve): S. aureus including seven clinical MRSA and Enterococcus faecalis, Gram (-ve): Escherichia coli, Salmonella Typhimurium, Klebsiella pneumoniae and Shigella boydii along with non-pathogenic Enterobacter aerogenes as well as fungal strains (Cryptococcus neoformans and Candida albicans, C. krusei, C. tropicalis and Aspergillus niger) exhibiting antimicrobial potential. The NRPS and PKS genes of the target strains were also amplified and sequenced. The putative protein structures were predicted using bioinformatics approach. CONCLUSION PKS gene expression indicated β keto-acyl synthase as one of the important active domains in the biomolecules related to antitumour and antifungal group. The simultaneous identification of the biomolecule (dihydro-2H-pyran-2-one derivative) was also inferred spectroscopically. SIGNIFICANCE AND IMPACT OF THE STUDY Freshwater Cyanobacteria are prolific producers of secondary metabolite(s) that may act as the antimicrobial drug resource in addition to their much explored marine counterpart.
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Affiliation(s)
- A Srivastava
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - V K Singh
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - S Patnaik
- Council of Scientific and Industrial Research - Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh, India
| | - J Tripathi
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - P Singh
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - G Nath
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - R K Asthana
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Ndlela LL, Oberholster PJ, Van Wyk JH, Cheng PH. An overview of cyanobacterial bloom occurrences and research in Africa over the last decade. HARMFUL ALGAE 2016; 60:11-26. [PMID: 28073554 DOI: 10.1016/j.hal.2016.10.001] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 10/07/2016] [Accepted: 10/07/2016] [Indexed: 05/04/2023]
Abstract
Cyanobacterial blooms are a current cause for concern globally, with vital water sources experiencing frequent and increasingly toxic blooms in the past decade. These increases are resultant of both anthropogenic and natural factors, with climate change being the central concern. Of the more affected parts of the world, Africa has been considered particularly vulnerable due to its historical predisposition and lag in social economic development. This review collectively assesses the available information on cyanobacterial blooms in Africa as well as any visible trends associated with reported occurrences over the last decade. Of the 54 countries in Africa, only 21 have notable research information in the area of cyanobacterial blooms within the last decade, although there is substantial reason to attribute these blooms as some of the major water quality threats in Africa collectively. The collected information suggests that civil wars, disease outbreaks and inadequate infrastructure are at the core of Africa's delayed advancement. This is even more so in the area of cyanobacteria related research, with 11 out of 21 countries having recorded toxicity and physicochemical parameters related to cyanobacterial blooms. Compared to the rest of the continent, peripheral countries are at the forefront of research related to cyanobacteria, with countries such as Angola having sufficient rainfall, but poor water quality with limited information on bloom occurrences. An assessment of the reported blooms found nitrogen concentrations to be higher in the water column of more toxic blooms, validating recent global studies and indicating that phosphorous is not the only factor to be monitored in bloom mitigation. Blooms occurred at low TN: TP ratios and at temperatures above 12°C. Nitrogen was linked to toxicity and temperature also had a positive effect on bloom occurrence and toxicity. Microcystis was the most ubiquitous of the cyanobacterial strains reported in Africa and the one most frequently toxic. Cylindrospermopsis was reported more in the dry, north and western parts of the continent countries as opposed to the rest of the continent, whilst Anabaena was more frequent on the south eastern regions. In light of the entire continent, the inadequacy in reported blooms and advances in this area of research require critical intervention and action.
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Affiliation(s)
- L L Ndlela
- Council for Scientific and Industrial Research, 11 Jan Celliers Road, Stellenbosch, 7600 South Africa; Department of Botany and Zoology, Faculty of Science, Stellenbosch University, Matieland 7600, South Africa.
| | - P J Oberholster
- Council for Scientific and Industrial Research, 11 Jan Celliers Road, Stellenbosch, 7600 South Africa; Department of Botany and Zoology, Faculty of Science, Stellenbosch University, Matieland 7600, South Africa
| | - J H Van Wyk
- Department of Botany and Zoology, Faculty of Science, Stellenbosch University, Matieland 7600, South Africa
| | - P H Cheng
- Council for Scientific and Industrial Research, 11 Jan Celliers Road, Stellenbosch, 7600 South Africa
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Hernández-Ledesma B, Hsieh CC. Chemopreventive role of food-derived proteins and peptides: A review. Crit Rev Food Sci Nutr 2015; 57:2358-2376. [DOI: 10.1080/10408398.2015.1057632] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Blanca Hernández-Ledesma
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM, CEI UAM+CSIC), Madrid, Spain
| | - Chia-Chien Hsieh
- Department of Human Development and Family Studies (Nutritional Science and Education), National Taiwan Normal University, Taipei, Taiwan
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11
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Talero E, García-Mauriño S, Ávila-Román J, Rodríguez-Luna A, Alcaide A, Motilva V. Bioactive Compounds Isolated from Microalgae in Chronic Inflammation and Cancer. Mar Drugs 2015; 13:6152-209. [PMID: 26437418 PMCID: PMC4626684 DOI: 10.3390/md13106152] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/09/2015] [Accepted: 09/15/2015] [Indexed: 12/12/2022] Open
Abstract
The risk of onset of cancer is influenced by poorly controlled chronic inflammatory processes. Inflammatory diseases related to cancer development include inflammatory bowel disease, which can lead to colon cancer, or actinic keratosis, associated with chronic exposure to ultraviolet light, which can progress to squamous cell carcinoma. Chronic inflammatory states expose these patients to a number of signals with tumorigenic effects, including nuclear factor kappa B (NF-κB) and mitogen-activated protein kinases (MAPK) activation, pro-inflammatory cytokines and prostaglandins release and ROS production. In addition, the participation of inflammasomes, autophagy and sirtuins has been demonstrated in pathological processes such as inflammation and cancer. Chemoprevention consists in the use of drugs, vitamins, or nutritional supplements to reduce the risk of developing or having a recurrence of cancer. Numerous in vitro and animal studies have established the potential colon and skin cancer chemopreventive properties of substances from marine environment, including microalgae species and their products (carotenoids, fatty acids, glycolipids, polysaccharides and proteins). This review summarizes the main mechanisms of actions of these compounds in the chemoprevention of these cancers. These actions include suppression of cell proliferation, induction of apoptosis, stimulation of antimetastatic and antiangiogenic responses and increased antioxidant and anti-inflammatory activity.
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Affiliation(s)
- Elena Talero
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Sofía García-Mauriño
- Department of Plant Biology and Ecology, Faculty of Biology, University of Seville, Seville 41012, Spain.
| | - Javier Ávila-Román
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Azahara Rodríguez-Luna
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Antonio Alcaide
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Virginia Motilva
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
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12
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Jakubowska N, Szeląg-Wasielewska E. Toxic picoplanktonic cyanobacteria--review. Mar Drugs 2015; 13:1497-518. [PMID: 25793428 PMCID: PMC4377996 DOI: 10.3390/md13031497] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 03/09/2015] [Indexed: 12/15/2022] Open
Abstract
Cyanobacteria of a picoplanktonic cell size (0.2 to 2.0 µm) are common organisms of both freshwater and marine ecosystems. However, due to their small size and relatively short study history, picoplanktonic cyanobacteria, in contrast to the microplanktonic cyanobacteria, still remains a poorly studied fraction of plankton. So far, only little information on picocyanobacteria toxicity has been reported, while the number of reports concerning their presence in ecosystems is increasing. Thus, the issue of picocyanobacteria toxicity needs more researchers' attention and interest. In this report, we present information on the current knowledge concerning the picocyanobacteria toxicity, as well as their harmfulness and problems they can cause.
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Affiliation(s)
- Natalia Jakubowska
- Department of Water Protection, Faculty of Biology, Adam Mickiewicz University in Poznań, Umultowska 89, 61-614 Poznań, Poland.
| | - Elżbieta Szeląg-Wasielewska
- Department of Water Protection, Faculty of Biology, Adam Mickiewicz University in Poznań, Umultowska 89, 61-614 Poznań, Poland.
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13
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Maruthanayagam V, Nagarajan M, Sundararaman M. Cytotoxicity assessment of cultivable marine cyanobacterial extracts inArtemia salina(brine shrimp) larvae and cancer cell lines. TOXIN REV 2013. [DOI: 10.3109/15569543.2012.754772] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Caicedo NH, Kumirska J, Neumann J, Stolte S, Thöming J. Detection of bioactive exometabolites produced by the filamentous marine cyanobacterium Geitlerinema sp. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2012; 14:436-45. [PMID: 22160344 PMCID: PMC3374093 DOI: 10.1007/s10126-011-9424-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Accepted: 11/26/2011] [Indexed: 05/04/2023]
Abstract
Marine cyanobacteria are noted for their ability to excrete metabolites with biotic properties. This paper focuses on such exometabolites obtained from the culture of the marine filamentous cyanobacterium Geitlerinema sp. strain, their purification and subsequent analyses. By this means the recoveries of the active compounds, a prerequisite for properly determining their concentration, are quantified here for the first time. We demonstrate a new procedure using Amberlite XAD-1180 resin in combination with the eluent isopropanol for extraction of the culture media and gas chromatography as simplified chemical analysis. This procedure reduced necessary bacteria cultivation time (from 150 to 21 days) at low volumes of culture media (300 mL) required for identification of two selected bioactive compounds: 4,4'-dihydroxybiphenyl and harmane.
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Affiliation(s)
- Nelson H. Caicedo
- UFT-Centre for Environmental Research and Sustainable Technology, University of Bremen, Leobener Straße UFT, 28359 Bremen, Germany
| | - Jolanta Kumirska
- Faculty of Chemistry, University of Gdansk, Sobieskiego 18/19, 80-952 Gdansk, Poland
| | - Jennifer Neumann
- UFT-Centre for Environmental Research and Sustainable Technology, University of Bremen, Leobener Straße UFT, 28359 Bremen, Germany
| | - Stefan Stolte
- UFT-Centre for Environmental Research and Sustainable Technology, University of Bremen, Leobener Straße UFT, 28359 Bremen, Germany
| | - Jorg Thöming
- UFT-Centre for Environmental Research and Sustainable Technology, University of Bremen, Leobener Straße UFT, 28359 Bremen, Germany
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Isolation and characterization of a new iturinic lipopeptide, mojavensin A produced by a marine-derived bacterium Bacillus mojavensis B0621A. J Antibiot (Tokyo) 2012; 65:317-22. [PMID: 22491138 DOI: 10.1038/ja.2012.19] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Three lipopeptides were isolated by bioactivity-guided fractionation from the fermentation broth of Bacillus mojavensis B0621A. A new iturinic lipopeptide, named mojavensin A, was tentatively characterized by 1D, 2D NMR and MS spectroscopy, Marfey's method containing a novel peptide backbone of L-Asn₁, D-Tyr₂, D-Asn₃, L-Gln₄, L-Pro₅, D-Asn₆, L-Asn₇ and an anteiso-type of the saturated β-fatty acid side chain. Compound 2 and 3 were tentatively identified as iso-C16 fengycin B and anteiso-C17 fengycin B, respectively. These lipopeptides displayed dose-dependent antifungal activity against a broad spectra of phytopathogens and were weakly antagonistic to Staphylococcus aureus. Moreover, they all revealed cytotoxic activities against the human leukemia (HL-60) cell line. Mojavensin A, iso-C16 fengycin B, and anteiso-C17 fengycin B inhibited the growth of HL-60 with IC₅₀ of 100, 100 and 1.6 μM, respectively.
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Marine Cyanobacteria. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/b978-0-444-53836-9.00021-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Lee YM, Dang HT, Li J, Zhang P, Hong JK, Lee CO, Jung JH. A Cytotoxic Fellutamide Analogue from the Sponge-Derived Fungus Aspergillus versicolor. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.10.3817] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Antitumor peptides from marine organisms. Mar Drugs 2011; 9:1840-1859. [PMID: 22072999 PMCID: PMC3210608 DOI: 10.3390/md9101840] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 09/08/2011] [Accepted: 09/22/2011] [Indexed: 12/24/2022] Open
Abstract
The biodiversity of the marine environment and the associated chemical diversity constitute a practically unlimited resource of new antitumor agents in the field of the development of marine bioactive substances. In this review, the progress on studies of antitumor peptides from marine sources is provided. The biological properties and mechanisms of action of different marine peptides are described; information about their molecular diversity is also presented. Novel peptides that induce apoptosis signal pathway, affect the tubulin-microtubule equilibrium and inhibit angiogenesis are presented in association with their pharmacological properties. It is intended to provide useful information for further research in the fields of marine antitumor peptides.
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Blunt JW, Copp BR, Hu WP, Munro MHG, Northcote PT, Prinsep MR. Marine natural products. Nat Prod Rep 2009; 26:170-244. [PMID: 19177222 DOI: 10.1039/b805113p] [Citation(s) in RCA: 410] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review covers the literature published in 2007 for marine natural products, with 948 citations(627 for the period January to December 2007) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, cnidarians,bryozoans, molluscs, tunicates, echinoderms and true mangrove plants. The emphasis is on new compounds (961 for 2007), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.1 Introduction, 2 Reviews, 3 Marine microorganisms and phytoplankton, 4 Green algae, 5 Brown algae, 6 Red algae, 7 Sponges, 8 Cnidarians, 9 Bryozoans, 10 Molluscs, 11 Tunicates (ascidians),12 Echinoderms, 13 Miscellaneous, 14 Conclusion, 15 References.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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