1
|
Hussaini IM, Oyewole OA, Sulaiman MA, Dabban AI, Sulaiman AN, Tarek R. Microbial anti-biofilms: types and mechanism of action. Res Microbiol 2024; 175:104111. [PMID: 37844786 DOI: 10.1016/j.resmic.2023.104111] [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: 03/12/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 10/18/2023]
Abstract
Biofilms have been recognized as a serious threat to public health as it protects microbes from antimicrobials, immune defence mechanisms, chemical treatments and nutritional stress. Biofilms are also a source of concern in industries and water treatment because their presence compromises the integrity of equipment. To overcome these problems, it is necessary to identify novel anti-biofilm compounds. Products of microorganisms have been identified as promising broad-spectrum anti-biofilm agents. These natural products include biosurfactants, antimicrobial peptides, enzymes and bioactive compounds. Anti-biofilm products of microbial origin are chemically diverse and possess a broad spectrum of activities against biofilms. The objective of this review is to give an overview of the different types of microbial anti-biofilm products and their mechanisms of action.
Collapse
Affiliation(s)
| | - Oluwafemi Adebayo Oyewole
- Department of Microbiology, School of Life Sciences, Federal University of Technology, Minna, Nigeria; African Center of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria.
| | | | | | - Asmau Nna Sulaiman
- Department of Microbiology, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Reham Tarek
- Department of Biotechnology, Cairo University, Egypt
| |
Collapse
|
2
|
Hassan NH, El-Hawary SS, Emam M, Safwat NA, Rabeh MA, Abdelmohsen UR, Selim NM. Nephthea sp. inhibits biofilm, DNA gyrase, HSP90, and DHFR: in vitro, in silico, and pharmacokinetics studies. Nat Prod Res 2023; 37:3896-3901. [PMID: 36519250 DOI: 10.1080/14786419.2022.2156998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/28/2022] [Accepted: 12/04/2022] [Indexed: 12/23/2022]
Abstract
This study attempts to identify and assess a novel marine-derived antibiofilm agent. The antibacterial activity of n-hexane, dichloromethane, ethyl acetate, and butanol fractions from the crude extract of soft coral Nephthea sp. was evaluated against six microorganisms.Ethyl acetate fraction considered the most effective one against Bacillus subtilis, Escherichia coli, and Candida, investigated potential biofilm inhibition against the tested strains. Seventeen secondary metabolites were identified using (UPLC-Q/TOF-MS) responsible for these biological activities of the active fraction. Additionally, a molecular docking study showed free binding energy of -7.5 kcal/mol; Azamial A had the highest binding affinity for the DNA gyrase enzyme, while Sinularectin had -8.3 and -7.6 kcal/mol for the DHFR and HSP90 enzymes, respectively. Moreover, pharmacokinetics and (ADME) studies for Azamial A and Sinularectin were performed. Finally, results were confirmed by the in vitro enzymatic inhibitory effect of ethyl acetate fraction suggested in the in-silico study.
Collapse
Affiliation(s)
- Nevine H Hassan
- Pharmacognosy Department, Faculty of Pharmacy, Modern University for Technology and Information, Cairo, Egypt
| | - Seham S El-Hawary
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Giza, Egypt
| | - Mahmoud Emam
- Phytochemistry and Plant Systematics Department, National Research Centre, Cairo, Egypt
| | - Nesreen A Safwat
- Microbiology and Immunology Department, Faculty of Pharmacy, Modern University for Technology and Information, Cairo, Egypt
| | - Mohamed A Rabeh
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Giza, Egypt
- Pharmacognosy Department, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Usama Ramadan Abdelmohsen
- Pharmacognosy Department, Faculty of Pharmacy, Minia University, Minia, Egypt
- Pharmacognosy Department, Faculty of Pharmacy, Deraya University, New Minia, Egypt
| | - Nabil M Selim
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Giza, Egypt
| |
Collapse
|
3
|
Zhang Y, Lin M, Qin Y, Lu H, Xu X, Gao C, Liu Y, Luo W, Luo X. Anti-Vibrio potential of natural products from marine microorganisms. Eur J Med Chem 2023; 252:115330. [PMID: 37011553 DOI: 10.1016/j.ejmech.2023.115330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/28/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023]
Abstract
The emergence of drug-resistant Vibrio poses a serious threat to aquaculture and human health, thus there is an urgent need for the discovery of new related antibiotics. Given that marine microorganisms (MMs) are evidenced as important sources of antibacterial natural products (NPs), great attention has been gained to the exploration of potential anti-Vibrio agents from MMs. This review summarizes the occurrence, structural diversity, and biological activities of 214 anti-Vibrio NPs isolated from MMs (from 1999 to July 2022), including 108 new compounds. They were predominantly originated from marine fungi (63%) and bacteria (30%) with great structural diversity, including polyketides, nitrogenous compounds, terpenoids, and steroids, among which polyketides account for nearly half (51%) of them. This review will shed light on the development of MMs derived NPs as potential anti-Vibrio lead compounds with promising applications in agriculture and human health.
Collapse
|
4
|
Miller T, Waturangi DE, Yogiara. Antibiofilm properties of bioactive compounds from Actinomycetes against foodborne and fish pathogens. Sci Rep 2022; 12:18614. [PMID: 36329158 PMCID: PMC9633603 DOI: 10.1038/s41598-022-23455-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
In nature, bacteria can form biofilms, multi-layered structures that adhere microbial populations to solid surfaces by exopolysaccharides, proteins, and nucleic acids. In addition to causing foodborne infections, biofilms can be a major problem in aquaculture. Actinomycetes extracts have previously demonstrated antibiofilm activity against multiple foodborne and fish pathogens, and further characterization of these extracts is needed. In this study, we identified the chemical structures and antibiofilm properties of four extracts and determined the genetic similarity of the isolates to known Streptomyces isolates. We found that several extracts contained multiple antibiofilm compounds, and the antibiofilm activities of all extracts were most stable at pH 6. Furthermore, the antibiofilm inhibition and destruction activities of the isolates were stable at different temperatures. All of crude extracts demonstrated activity against biofilms formed by foodborne and fish pathogens on the surface of stainless-steel coupons as well as polystyrene that commonly used in industrial equipment. Using PCR 16S-rRNA gene and DNA sequencing analysis, the four Actinomycetes isolates were found to be 99% (1 AC), 97% (20 PM), 95% (16 PM), and 85% (18 PM) similar to Streptomyces. Biofilm structure were analyzed using Scanning Electron Microscopy coupled with Energy-Dispersive Spectrometry analysis. Coniine/(S)-2-propylpiperidine was the most active fraction of the crude extracts of the 1 AC, 20 PM, and 16 PM isolates, and piperidine, 2-(tetrahydro-2-furanyl) was most active in the 18 PM isolate.
Collapse
Affiliation(s)
- Tracy Miller
- grid.443450.20000 0001 2288 786XBiotechnology Department, Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jenderal Sudirman 51 Street, South Jakarta, DKI Jakarta 12930 Indonesia
| | - Diana Elizabeth Waturangi
- grid.443450.20000 0001 2288 786XBiotechnology Department, Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jenderal Sudirman 51 Street, South Jakarta, DKI Jakarta 12930 Indonesia
| | - Yogiara
- grid.443450.20000 0001 2288 786XBiotechnology Department, Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jenderal Sudirman 51 Street, South Jakarta, DKI Jakarta 12930 Indonesia
| |
Collapse
|
5
|
Çelik C, Üstün E, Şahin N, Tutar U. Antimicrobial and Antibiofilm Activity, and Bovine Serum Albumin Binding Properties of Benzimidazolium Type NHC Salts and Their Ag(I)‐NHC Complexes. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cem Çelik
- Faculty of Medicine, Department of Medical Microbiology Cumhuriyet University Sivas Turkey
| | - Elvan Üstün
- Faculty of Art and Science, Department of Chemistry Ordu University Ordu Turkey
| | - Neslihan Şahin
- Faculty of Education, Department of Science Education Cumhuriyet University Sivas Turkey
| | - Uğur Tutar
- Faculty of Pharmacy, Department of Botanica Cumhuriyet University Sivas Turkey
| |
Collapse
|
6
|
Ramalingam V, Rajaram R, Archunan G, Padmanabhan P, Gulyás B. Structural Characterization, Antimicrobial, Antibiofilm, Antioxidant, Anticancer and Acute Toxicity Properties of N-(2-hydroxyphenyl)-2-phenazinamine From Nocardiopsis exhalans (KP149558). Front Cell Infect Microbiol 2022; 12:794338. [PMID: 35663469 PMCID: PMC9161293 DOI: 10.3389/fcimb.2022.794338] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
The present study aimed to isolate and identify potential drugs from marine actinomycete Nocardiopsis exhalans and screen them for biomedical applications. The cell-free culture of N. exhalans was extracted with ethyl acetate and the solvent extract showed six fractions in thin-layer chromatography. The fractions were subjected to column chromatography for purification and evaluated for activity against human clinical pathogens. Fraction 4 showed significant activity and was identified as N-(2-hydroxyphenyl)-2-phenazinamine (NHP) using spectral analyses. Further, NHP showed excellent biofilm inhibitory activity against human clinical pathogens Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. The in vitro antioxidant activity confirmed that NHP is scavenging the oxidative stress-enhancing molecules. The anti-proliferative activity of NHP against human breast cancer cells showed significant activity at 300 µg/ml and less cytotoxic activity against normal cells. Additionally, the toxicity assessment against zebrafish revealed that NHP does not cause any toxicity in the important organs. The results highlight N. exhalans as a promising candidate for the development of antibiotics with potential therapeutic applications.
Collapse
Affiliation(s)
- Vaikundamoorthy Ramalingam
- Centre for Natural Products and Traditional Knowledge, Indian Institute of Chemical Technology, Hyderabad, India
- DNA Barcoding and Marine Genomics Lab, Department of Marine Science, Bharathidasan University, Tiruchirappalli, India
- *Correspondence: Vaikundamoorthy Ramalingam, ; Parasuraman Padmanabhan,
| | - Rajendran Rajaram
- DNA Barcoding and Marine Genomics Lab, Department of Marine Science, Bharathidasan University, Tiruchirappalli, India
| | - Govindaraju Archunan
- Department of Animal Science, Bharathidasan University Tiruchirappalli, Tamil Nadu, India
- Dean of Research, Marudupandiyar College, Thanjavur, India
| | - Parasuraman Padmanabhan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
- Cognitive Neuroimaging Centre, Nanyang Technological University, Nanyang Technological University, Singapore, Singapore
- Imaging Probe Development Platform (IPDP), Nanyang Technological University, Singapore, Singapore
- *Correspondence: Vaikundamoorthy Ramalingam, ; Parasuraman Padmanabhan,
| | - Balázs Gulyás
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
- Cognitive Neuroimaging Centre, Nanyang Technological University, Nanyang Technological University, Singapore, Singapore
- Imaging Probe Development Platform (IPDP), Nanyang Technological University, Singapore, Singapore
| |
Collapse
|
7
|
Tarafdar A, Sirohi R, Balakumaran PA, Reshmy R, Madhavan A, Sindhu R, Binod P, Kumar Y, Kumar D, Sim SJ. The hazardous threat of Bisphenol A: Toxicity, detection and remediation. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127097. [PMID: 34488101 DOI: 10.1016/j.jhazmat.2021.127097] [Citation(s) in RCA: 77] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/23/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
Bisphenol A (or BPA) is a toxic endocrine disrupting chemical that is released into the environment through modern manufacturing practices. BPA can disrupt the production, function and activity of endogenous hormones causing irregularity in the hypothalamus-pituitary-gonadal glands and also the pituitary-adrenal function. BPA has immuno-suppression activity and can downregulate T cells and antioxidant genes. The genotoxicity and cytotoxicity of BPA is paramount and therefore, there is an immediate need to properly detect and remediate its influence. In this review, we discuss the toxic effects of BPA on different metabolic systems in the human body, followed by its mechanism of action. Various novel detection techniques (LC-MS, GC-MS, capillary electrophoresis, immunoassay and sensors) involving a pretreatment step (liquid-liquid microextraction and molecularly imprinted solid-phase extraction) have also been detailed. Mechanisms of various remediation strategies, including biodegradation using native enzymes, membrane separation processes, photocatalytic oxidation, use of nanosorbents and thermal degradation has been detailed. An overview of the global regulations pertaining to BPA has been presented. More investigations are required on the efficiency of integrated remediation technologies rather than standalone methods for BPA removal. The effect of processing operations on BPA in food matrices is also warranted to restrict its transport into food products.
Collapse
Affiliation(s)
- Ayon Tarafdar
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, Uttar Pradesh, India
| | - Ranjna Sirohi
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
| | - Palanisamy Athiyaman Balakumaran
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695019, Kerala, India
| | - R Reshmy
- Department of Chemistry, Bishop Moore College, Mavelikkara 690110, Kerela, India
| | - Aravind Madhavan
- Rajiv Gandhi Centre for Biotechnology, Trivandrum 695014, Kerela, India
| | - Raveendran Sindhu
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695019, Kerala, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695019, Kerala, India
| | - Yogesh Kumar
- Department of Food Science and Technology, National Institute of Food Technology and Entrepreneurship and Management, Sonipat 131028, Haryana, India
| | - Deepak Kumar
- Department of Food Science and Technology, National Institute of Food Technology and Entrepreneurship and Management, Sonipat 131028, Haryana, India
| | - Sang Jun Sim
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea.
| |
Collapse
|
8
|
Antimicrobial activity, inhibition of biofilm formation, and molecular docking study of novel Ag-NHC complexes. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.122082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
9
|
Chen J, Xu L, Zhou Y, Han B. Natural Products from Actinomycetes Associated with Marine Organisms. Mar Drugs 2021; 19:md19110629. [PMID: 34822500 PMCID: PMC8621598 DOI: 10.3390/md19110629] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/05/2021] [Accepted: 11/06/2021] [Indexed: 12/15/2022] Open
Abstract
The actinomycetes have proven to be a rich source of bioactive secondary metabolites and play a critical role in the development of pharmaceutical researches. With interactions of host organisms and having special ecological status, the actinomycetes associated with marine animals, marine plants, macroalgae, cyanobacteria, and lichens have more potential to produce active metabolites acting as chemical defenses to protect the host from predators as well as microbial infection. This review focuses on 536 secondary metabolites (SMs) from actinomycetes associated with these marine organisms covering the literature to mid-2021, which will highlight the taxonomic diversity of actinomycetes and the structural classes, biological activities of SMs. Among all the actinomycetes listed, members of Streptomyces (68%), Micromonospora (6%), and Nocardiopsis (3%) are dominant producers of secondary metabolites. Additionally, alkaloids (37%), polyketides (33%), and peptides (15%) comprise the largest proportion of natural products with mostly antimicrobial activity and cytotoxicity. Furthermore, the data analysis and clinical information of SMs have been summarized in this article, suggesting that some of these actinomycetes with multiple host organisms deserve more attention to their special ecological status and genetic factors.
Collapse
|
10
|
Pusparajah P, Letchumanan V, Law JWF, Ab Mutalib NS, Ong YS, Goh BH, Tan LTH, Lee LH. Streptomyces sp.-A Treasure Trove of Weapons to Combat Methicillin-Resistant Staphylococcus aureus Biofilm Associated with Biomedical Devices. Int J Mol Sci 2021; 22:ijms22179360. [PMID: 34502269 PMCID: PMC8431294 DOI: 10.3390/ijms22179360] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 08/23/2021] [Accepted: 08/26/2021] [Indexed: 11/16/2022] Open
Abstract
Biofilms formed by methicillin-resistant S. aureus (MRSA) are among the most frequent causes of biomedical device-related infection, which are difficult to treat and are often persistent and recurrent. Thus, new and effective antibiofilm agents are urgently needed. In this article, we review the most relevant literature of the recent years reporting on promising anti-MRSA biofilm agents derived from the genus Streptomyces bacteria, and discuss the potential contribution of these newly reported antibiofilm compounds to the current strategies in preventing biofilm formation and eradicating pre-existing biofilms of the clinically important pathogen MRSA. Many efforts are evidenced to address biofilm-related infections, and some novel strategies have been developed and demonstrated encouraging results in preclinical studies. Nevertheless, more in vivo studies with appropriate biofilm models and well-designed multicenter clinical trials are needed to assess the prospects of these strategies.
Collapse
Affiliation(s)
- Priyia Pusparajah
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (P.P.); (V.L.); (J.W.-F.L.); (N.-S.A.M.)
| | - Vengadesh Letchumanan
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (P.P.); (V.L.); (J.W.-F.L.); (N.-S.A.M.)
| | - Jodi Woan-Fei Law
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (P.P.); (V.L.); (J.W.-F.L.); (N.-S.A.M.)
| | - Nurul-Syakima Ab Mutalib
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (P.P.); (V.L.); (J.W.-F.L.); (N.-S.A.M.)
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Centre, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Yong Sze Ong
- Biofunctional Molecule Exploratory Research Group (BMEX), School of Pharmacy, Monash University Malaysia, Bandar Sunway 47500, Malaysia;
| | - Bey-Hing Goh
- Biofunctional Molecule Exploratory Research Group (BMEX), School of Pharmacy, Monash University Malaysia, Bandar Sunway 47500, Malaysia;
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Correspondence: (B.-H.G.); (L.T.-H.T.); (L.-H.L.)
| | - Loh Teng-Hern Tan
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (P.P.); (V.L.); (J.W.-F.L.); (N.-S.A.M.)
- Clinical School Johor Bahru, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Johor Bahru 80100, Malaysia
- Correspondence: (B.-H.G.); (L.T.-H.T.); (L.-H.L.)
| | - Learn-Han Lee
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (P.P.); (V.L.); (J.W.-F.L.); (N.-S.A.M.)
- Correspondence: (B.-H.G.); (L.T.-H.T.); (L.-H.L.)
| |
Collapse
|
11
|
Goel N, Fatima SW, Kumar S, Sinha R, Khare SK. Antimicrobial resistance in biofilms: Exploring marine actinobacteria as a potential source of antibiotics and biofilm inhibitors. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 30:e00613. [PMID: 33996521 PMCID: PMC8105627 DOI: 10.1016/j.btre.2021.e00613] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/19/2021] [Accepted: 03/21/2021] [Indexed: 12/12/2022]
Abstract
Antimicrobial resistance (AMR) is one of the serious global public health threats that require immediate action. With the emergence of new resistance mechanisms in infection-causing microorganisms such as bacteria, fungi, and viruses, AMR threatens the effective prevention and treatment of diseases caused by them. This has resulted in prolonged illness, disability, and death. It has been predicted that AMR will lead to over ten million deaths by 2050. The rapid spread of multidrug-resistant bacteria is also causing old antibiotics to become ineffective. Among the diverse factors contributing to AMR, intrinsic biofilm development has been highlighted as an essential contributing facet. Moreover, biofilm-derived antibiotic tolerance leads to serious recurrent chronic infections. Therefore, the discovery of novel bioactive molecules is a potential solution that can help combat AMR. To achieve this, sustained mining of novel antimicrobial leads from actinobacteria, particularly marine actinobacteria, can be a promising strategy. Given their vast diversity and different habitats, the extraordinary capacity of actinobacteria can be tapped to synthesize new antibiotics or bioactive molecules for biofilm inhibition. Advanced screening strategies and novel approaches in the field of modern biochemical and molecular biology can be used to detect such new compounds. In view of this, the present review focuses on understanding some of the recent strategies to inhibit biofilm formation and explores the potential role of marine actinobacteria as sources of novel antibiotics and biofilm inhibitor molecules.
Collapse
Affiliation(s)
- Nikky Goel
- Department of Chemistry, Indian Institute of Technology Delhi, India
| | | | - Sumit Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, India
| | | | - Sunil K. Khare
- Department of Chemistry, Indian Institute of Technology Delhi, India
| |
Collapse
|
12
|
Janik E, Ceremuga M, Niemcewicz M, Bijak M. Dangerous Pathogens as a Potential Problem for Public Health. MEDICINA (KAUNAS, LITHUANIA) 2020; 56:E591. [PMID: 33172013 PMCID: PMC7694656 DOI: 10.3390/medicina56110591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 11/01/2020] [Accepted: 11/04/2020] [Indexed: 12/22/2022]
Abstract
Pathogens are various organisms, such as viruses, bacteria, fungi, and protozoa, which can cause severe illnesses to their hosts. Throughout history, pathogens have accompanied human populations and caused various epidemics. One of the most significant outbreaks was the Black Death, which occurred in the 14th century and caused the death of one-third of Europe's population. Pathogens have also been studied for their use as biological warfare agents by the former Soviet Union, Japan, and the USA. Among bacteria and viruses, there are high priority agents that have a significant impact on public health. Bacillus anthracis, Francisella tularensis, Yersinia pestis, Variola virus, Filoviruses (Ebola, Marburg), Arenoviruses (Lassa), and influenza viruses are included in this group of agents. Outbreaks and infections caused by them might result in social disruption and panic, which is why special operations are needed for public health preparedness. Antibiotic-resistant bacteria that significantly impede treatment and recovery of patients are also valid threats. Furthermore, recent events related to the massive spread of Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are an example of how virus-induced diseases cannot be ignored. The impact of outbreaks, such as SARS-CoV-2, have had far-reaching consequences beyond public health. The economic losses due to lockdowns are difficult to estimate, but it would take years to restore countries to pre-outbreak status. For countries affected by the 2019 coronavirus disease (COVID-19), their health systems have been overwhelmed, resulting in an increase in the mortality rate caused by diseases or injuries. Furthermore, outbreaks, such as SARS-CoV-2, will induce serious, wide-ranging (and possibly long-lasting) psychological problems among, not only health workers, but ordinary citizens (this is due to isolation, quarantine, etc.). The aim of this paper is to present the most dangerous pathogens, as well as general characterizations, mechanisms of action, and treatments.
Collapse
Affiliation(s)
- Edyta Janik
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (E.J.); (M.N.)
| | - Michal Ceremuga
- Military Institute of Armament Technology, Prymasa Stefana Wyszyńskiego 7, 05-220 Zielonka, Poland;
| | - Marcin Niemcewicz
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (E.J.); (M.N.)
| | - Michal Bijak
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (E.J.); (M.N.)
| |
Collapse
|