1
|
Nuro GB, Tolossa K, Giday M. Medicinal Plants Used by Oromo Community in Kofale District, West-Arsi Zone, Oromia Regional State, Ethiopia. J Exp Pharmacol 2024; 16:81-109. [PMID: 38476311 PMCID: PMC10929209 DOI: 10.2147/jep.s449496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Purpose The purpose of this study was to record the utilization of medicinal plants by the Oromo people in the Kofale District, Oromia Regional State, Ethiopia, to control human and animal health problems. Methods Data regarding the use of medicinal plants were collected using ethnobotanical methods from 84 traditional medicine practitioners and 304 general informants sampled employing purposive and systematic random sampling methods, respectively, in the Kofale District. Data were analyzed using different indices, including a preference ranking exercise, informant consensus factor (ICF), fidelity level (FL) and relative popularity level (RPL). Results In the district, 106 medicinal plants were claimed to be used for the treatment of 43 human and 18 livestock illnesses, of which 75 (71%) were used to manage human health problems, 23 (21.5%) were used to treat both human and livestock ailments and eight (7.5%) were utilized to treat manage livestock health problems. Most (76.4%) plants were harvested from the wild. Leaves were the most commonly used plant part (55.6%) in remedy preparations. Skin diseases scored the highest ICF value (0.97), followed by gastrointestinal disorders (ICF = 0.95), cancer (ICF = 0.93), and hemorrhoids (ICF = 0.91). Medicinal plants that record the highest fidelity level (FL) (100%) and rank order priority (ROP) (100%) values included Justicia schimperiana, Embelia schimperi, Ekebergia capensis and Datura stramonium, which have been used to treat liver disorders, tapeworm infections, babesiosis, and rabies, respectively. There were significant differences (p<0.05) in the mean numbers of medicinal plants claimed by different social groups: older, illiterate, and traditional medicine practitioners reported higher mean numbers of medicinal plants than younger, literate, and general informants, respectively. Conclusion This study indicated the richness of medicinal plant species in Kofale District. Medicinal plants with the highest FL and ROP values and those used to treat disease categories with the highest ICF values should be prioritized in future phytochemical and pharmacological investigations.
Collapse
Affiliation(s)
- Geritu Bedasso Nuro
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Ketema Tolossa
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Mirutse Giday
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| |
Collapse
|
2
|
Cao X, Cheng XW, Liu YY, Dai HW, Gan RY. Inhibition of pathogenic microbes in oral infectious diseases by natural products: Sources, mechanisms, and challenges. Microbiol Res 2024; 279:127548. [PMID: 38016378 DOI: 10.1016/j.micres.2023.127548] [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: 09/12/2023] [Revised: 10/31/2023] [Accepted: 11/10/2023] [Indexed: 11/30/2023]
Abstract
The maintenance of oral health is of utmost importance for an individual's holistic well-being and standard of living. Within the oral cavity, symbiotic microorganisms actively safeguard themselves against potential foreign diseases by upholding a multifaceted equilibrium. Nevertheless, the occurrence of an imbalance can give rise to a range of oral infectious ailments, such as dental caries, periodontitis, and oral candidiasis. Presently, clinical interventions encompass the physical elimination of pathogens and the administration of antibiotics to regulate bacterial and fungal infections. Given the limitations of various antimicrobial drugs frequently employed in dental practice, the rising incidence of oral inflammation, and the escalating bacterial resistance to antibiotics, it is imperative to explore alternative remedies that are dependable, efficacious, and affordable for the prevention and management of oral infectious ailments. There is an increasing interest in the creation of novel antimicrobial agents derived from natural sources, which possess attributes such as safety, cost-effectiveness, and minimal adverse effects. This review provides a comprehensive overview of the impact of natural products on the development and progression of oral infectious diseases. Specifically, these products exert their influences by mitigating dental biofilm formation, impeding the proliferation of oral pathogens, and hindering bacterial adhesion to tooth surfaces. The review also encompasses an examination of the various classes of natural products, their antimicrobial mechanisms, and their potential therapeutic applications and limitations in the context of oral infections. The insights garnered from this review can support the promising application of natural products as viable therapeutic options for managing oral infectious diseases.
Collapse
Affiliation(s)
- Xin Cao
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Xing-Wang Cheng
- Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Yin-Ying Liu
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A⁎STAR), 31 Biopolis Way, Singapore 138669, Singapore; Department of Food Science and Technology, Faculty of Science, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore
| | - Hong-Wei Dai
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Ren-You Gan
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A⁎STAR), 31 Biopolis Way, Singapore 138669, Singapore; Department of Food Science and Technology, Faculty of Science, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore.
| |
Collapse
|
3
|
Moiketsi BN, Makale KPP, Rantong G, Rahube TO, Makhzoum A. Potential of Selected African Medicinal Plants as Alternative Therapeutics against Multi-Drug-Resistant Bacteria. Biomedicines 2023; 11:2605. [PMID: 37892979 PMCID: PMC10604549 DOI: 10.3390/biomedicines11102605] [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: 05/30/2023] [Revised: 09/04/2023] [Accepted: 09/18/2023] [Indexed: 10/29/2023] Open
Abstract
Antimicrobial resistance is considered a "One-Health" problem, impacting humans, animals, and the environment. The problem of the rapid development and spread of bacteria resistant to multiple antibiotics is a rising global health threat affecting both rich and poor nations. Low- and middle-income countries are at highest risk, in part due to the lack of innovative research on the surveillance and discovery of novel therapeutic options. Fast and effective drug discovery is crucial towards combatting antimicrobial resistance and reducing the burden of infectious diseases. African medicinal plants have been used for millennia in folk medicine to cure many diseases and ailments. Over 10% of the Southern African vegetation is applied in traditional medicine, with over 15 species being partially or fully commercialized. These include the genera Euclea, Ficus, Aloe, Lippia. And Artemisia, amongst many others. Bioactive compounds from indigenous medicinal plants, alone or in combination with existing antimicrobials, offer promising solutions towards overcoming multi-drug resistance. Secondary metabolites have different mechanisms and modes of action against bacteria, such as the inhibition and disruption of cell wall synthesis; inhibition of DNA replication and ATP synthesis; inhibition of quorum sensing; inhibition of AHL or oligopeptide signal generation, broadcasting, and reception; inhibition of the formation of biofilm; disruption of pathogenicity activities; and generation of reactive oxygen species. The aim of this review is to highlight some promising traditional medicinal plants found in Africa and provide insights into their secondary metabolites as alternative options in antibiotic therapy against multi-drug-resistant bacteria. Additionally, synergism between plant secondary metabolites and antibiotics has been discussed.
Collapse
Affiliation(s)
| | | | | | - Teddie O. Rahube
- Department of Biological Sciences and Biotechnology, Faculty of Science, Botswana International University of Science and Technology (BIUST), Private Bag 16, Palapye, Botswana; (B.N.M.); (K.P.P.M.); (G.R.)
| | - Abdullah Makhzoum
- Department of Biological Sciences and Biotechnology, Faculty of Science, Botswana International University of Science and Technology (BIUST), Private Bag 16, Palapye, Botswana; (B.N.M.); (K.P.P.M.); (G.R.)
| |
Collapse
|
4
|
Martínez-Cifuentes M, Soto-Tapia E, Linares-Pipón C, Bradshaw B, Valenzuela-Hormazabal P, Ramírez D, Muñoz-Torres P, Parra C. Design of β-Keto Esters with Antibacterial Activity: Synthesis, In Vitro Evaluation, and Theoretical Assessment of Their Reactivity and Quorum-Sensing Inhibition Capacity. Pharmaceuticals (Basel) 2023; 16:1339. [PMID: 37895810 PMCID: PMC10610512 DOI: 10.3390/ph16101339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 10/29/2023] Open
Abstract
This work proposes the design of β-keto esters as antibacterial compounds. The design was based on the structure of the autoinducer of bacterial quorum sensing, N-(3-oxo-hexanoyl)-l-homoserine lactone (3-oxo-C6-HSL). Eight β-keto ester analogues were synthesised with good yields and were spectroscopically characterised, showing that the compounds were only present in their β-keto ester tautomer form. We carried out a computational analysis of the reactivity and ADME (absorption, distribution, metabolism, and excretion) properties of the compounds as well as molecular docking and molecular dynamics calculations with the LasR and LuxS quorum-sensing (QS) proteins, which are involved in bacterial resistance to antibiotics. The results show that all the compounds exhibit reliable ADME properties and that only compound 7 can present electrophile toxicity. The theoretical reactivity study shows that compounds 6 and 8 present a differential local reactivity regarding the rest of the series. Compound 8 presents the most promising potential in terms of its ability to interact with the LasR and LuxS QS proteins efficiently according to its molecular docking and molecular dynamics calculations. An initial in vitro antimicrobial screening was performed against the human pathogenic bacteria Pseudomonas aeruginosa and Staphylococcus aureus as well as the phytopathogenic bacteria Pseudomonas syringae and Agrobacterium tumefaciens. Compounds 6 and 8 exhibit the most promising results in the in vitro antimicrobial screening against the panel of bacteria studied.
Collapse
Affiliation(s)
- Maximiliano Martínez-Cifuentes
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile; (E.S.-T.); (C.L.-P.)
| | - Emmanuel Soto-Tapia
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile; (E.S.-T.); (C.L.-P.)
| | - Camila Linares-Pipón
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile; (E.S.-T.); (C.L.-P.)
| | - Ben Bradshaw
- Laboratori de Química Orgánica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII, s/n, 08028 Barcelona, Spain;
| | - Paulina Valenzuela-Hormazabal
- Departamento de Farmacología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción 4030000, Chile; (P.V.-H.); (D.R.)
| | - David Ramírez
- Departamento de Farmacología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción 4030000, Chile; (P.V.-H.); (D.R.)
| | - Patricio Muñoz-Torres
- Laboratorio de Patología Vegetal y Bioproductos, Facultad de Ciencias Agronómicas, Universidad de Tarapacá, Av. General Velásquez 1775, Arica 1000000, Chile
| | - Claudio Parra
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile; (E.S.-T.); (C.L.-P.)
| |
Collapse
|
5
|
Ray RR, Pattnaik S. Contribution of phytoextracts in challenging the biofilms of pathogenic bacteria. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2023. [DOI: 10.1016/j.bcab.2023.102642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
|
6
|
Toushik SH, Roy A, Alam M, Rahman UH, Nath NK, Nahar S, Matubber B, Uddin MJ, Roy PK. Pernicious Attitude of Microbial Biofilms in Agri-Farm Industries: Acquisitions and Challenges of Existing Antibiofilm Approaches. Microorganisms 2022; 10:microorganisms10122348. [PMID: 36557600 PMCID: PMC9781080 DOI: 10.3390/microorganisms10122348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
Biofilm is a complex matrix made up of extracellular polysaccharides, DNA, and proteins that protect bacteria against physical, chemical, and biological stresses and allow them to survive in harsh environments. Safe and healthy foods are mandatory for saving lives. However, foods can be contaminated by pathogenic microorganisms at any stage from farm to fork. The contaminated foods allow pathogenic microorganisms to form biofilms and convert the foods into stigmatized poison for consumers. Biofilm formation by pathogenic microorganisms in agri-farm industries is still poorly understood and intricate to control. In biofilms, pathogenic bacteria are dwelling in a complex manner and share their genetic and physicochemical properties making them resistant to common antimicrobial agents. Therefore, finding the appropriate antibiofilm approaches is necessary to inhibit and eradicate the mature biofilms from foods and food processing surfaces. Advanced studies have already established several emerging antibiofilm approaches including plant- and microbe-derived biological agents, and they proved their efficacy against a broad-spectrum of foodborne pathogens. This review investigates the pathogenic biofilm-associated problems in agri-farm industries, potential remedies, and finding the solution to overcome the current challenges of antibiofilm approaches.
Collapse
Affiliation(s)
- Sazzad Hossen Toushik
- Institute for Smart Farm, Department of Food Hygiene and Safety, Gyeongsang National University, Jinju 52828, Republic of Korea
- ABEx Bio-Research Center, Azampur, Dakkhinkhan, Dhaka 1230, Bangladesh
| | - Anamika Roy
- ABEx Bio-Research Center, Azampur, Dakkhinkhan, Dhaka 1230, Bangladesh
| | - Mohaimanul Alam
- ABEx Bio-Research Center, Azampur, Dakkhinkhan, Dhaka 1230, Bangladesh
- Department of Biotechnology and Genetic Engineering, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Umma Habiba Rahman
- ABEx Bio-Research Center, Azampur, Dakkhinkhan, Dhaka 1230, Bangladesh
- Department of Biotechnology and Genetic Engineering, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Nikash Kanti Nath
- ABEx Bio-Research Center, Azampur, Dakkhinkhan, Dhaka 1230, Bangladesh
- Department of Biotechnology and Genetic Engineering, Mawlana Bhasani Science and Technology University, Tangail 1902, Bangladesh
| | - Shamsun Nahar
- ABEx Bio-Research Center, Azampur, Dakkhinkhan, Dhaka 1230, Bangladesh
| | - Bidyut Matubber
- ABEx Bio-Research Center, Azampur, Dakkhinkhan, Dhaka 1230, Bangladesh
- Department of Microbiology and Public Health, Khulna Agricultural University, Khulna 9100, Bangladesh
| | - Md Jamal Uddin
- ABEx Bio-Research Center, Azampur, Dakkhinkhan, Dhaka 1230, Bangladesh
| | - Pantu Kumar Roy
- ABEx Bio-Research Center, Azampur, Dakkhinkhan, Dhaka 1230, Bangladesh
- Institute of Marine Industry, Department of Seafood Science and Technology, Gyeongsang National University, Tongyeong 53064, Republic of Korea
- Correspondence: ; Tel.: +82-10-4649-9816; Fax: +82-0504-449-9816
| |
Collapse
|
7
|
Quorum Quenching Potential of Biogenic Silver Nanoparticles against Chromobacterium violaceum 4212. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2022. [DOI: 10.22207/jpam.16.3.77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The Chromobacterium violaceum is a gram-negative facultative anaerobic bacterium that is known to cause human infections in lungs, liver, brain, spleen lymph nodes and urinary tract. It has Acyl Homoserine Lactone (AHL) regulated virulence features like violacein pigment production, swarming motility, biofilm formation and haemolysis. Bacterial pathogens form biofilms in natural as well as medical implants due to a complex signalling – “Quorum Sensing” (QS). QS builds an interaction among the cells, which increases the proliferation and mechanisms necessary for invasion into the host. Instead of using only bactericidal agents for infection control, suppression of QS by Quorum Quenching agents (QQ) can overcome limitations of currently used antimicrobial substances. In the present study biogenic silver nanoparticles (BSNPs) synthesized from selected five plant extracts were screened against Chromobacterium violaceum MCC 4212 for QQ potential. Biofilm inhibition of 91.8% and dispersal of 81.33% was found to be exhibited by BSNPsmade from extracts of Garcinia and Trachyspermum. Swarming nature was inhibited by 66% while there was complete inhibition of haemolysis by BSNPs. Therefore, the BSNPs synthesized were found potential to control the pathogenicity of C. violaceum 4212 as an antibiofilm agent.
Collapse
|
8
|
Vilhelmova-Ilieva N, Petrova Z, Georgieva A, Tzvetanova E, Trepechova M, Mileva M. Anti-Coronavirus Efficiency and Redox-Modulating Capacity of Polyphenol-Rich Extracts from Traditional Bulgarian Medicinal Plants. LIFE (BASEL, SWITZERLAND) 2022; 12:life12071088. [PMID: 35888176 PMCID: PMC9319587 DOI: 10.3390/life12071088] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/16/2022] [Accepted: 07/18/2022] [Indexed: 01/01/2023]
Abstract
Background: The use of various herbal therapists as part of traditional medicine in different parts of the world, including Bulgaria, is due to the knowledge accumulated over the centuries by people about their valuable biological activities. In this study, we investigate extracts from widely used Bulgarian medicinal plants for their ability to prevent the coronavirus infection of cells by testing different mechanisms of antiviral protection, their polyphenol content, and redox-modulating capacity. Methods: The influence on the stage of viral adsorption, the inhibition of extracellular virions, and the protective effect on uninfected cells of the plant’s extracts were reported by the end-point dilution method, and virus titer (in Δ lgs) was determined as compared to the untreated controls. The total content of polyphenols and flavonoids was also determined. We tested the antioxidant power of the extracts by their ability to inhibit the generation of superoxide anionic radicals and to scavenge DPPH radicals. We determined their iron-reducing, copper-reducing, and metal-chelating antioxidant powers. Results: Most of the extracts tested suppress the extracellular virions of HCov. They also inhibit the stage of viral adsorption to the host cell to varying degrees and have a protective effect on healthy cells before being subjected to viral invasion. The examined extracts contained significant levels of polyphenols and quercetin-like flavonoids and showed remarkable antioxidant, radical, and redox-modulating effects. Conclusions: All of these 13 extracts from Bulgarian medicinal plants tested can act as antioxidants and antiviral and symptomatic drugs for the management of coronavirus infection.
Collapse
Affiliation(s)
- Neli Vilhelmova-Ilieva
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Georgi Bonchev, 1113 Sofia, Bulgaria; (N.V.-I.); (Z.P.); (A.G.); (E.T.); (M.T.)
| | - Zdravka Petrova
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Georgi Bonchev, 1113 Sofia, Bulgaria; (N.V.-I.); (Z.P.); (A.G.); (E.T.); (M.T.)
- Institute of Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, 25 Georgi Bonchev, 1113 Sofia, Bulgaria
| | - Almira Georgieva
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Georgi Bonchev, 1113 Sofia, Bulgaria; (N.V.-I.); (Z.P.); (A.G.); (E.T.); (M.T.)
- Institute of Neurobiology, Bulgarian Academy of Sciences, 23 Acad. G. Bontchev St., 1113 Sofia, Bulgaria
| | - Elina Tzvetanova
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Georgi Bonchev, 1113 Sofia, Bulgaria; (N.V.-I.); (Z.P.); (A.G.); (E.T.); (M.T.)
- Institute of Neurobiology, Bulgarian Academy of Sciences, 23 Acad. G. Bontchev St., 1113 Sofia, Bulgaria
| | - Madlena Trepechova
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Georgi Bonchev, 1113 Sofia, Bulgaria; (N.V.-I.); (Z.P.); (A.G.); (E.T.); (M.T.)
| | - Milka Mileva
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Georgi Bonchev, 1113 Sofia, Bulgaria; (N.V.-I.); (Z.P.); (A.G.); (E.T.); (M.T.)
- Correspondence: ; Tel.: +359-899-151-169
| |
Collapse
|
9
|
Bulgarian Medicinal Extracts as Natural Inhibitors with Antiviral and Antibacterial Activity. PLANTS 2022; 11:plants11131666. [PMID: 35807618 PMCID: PMC9268788 DOI: 10.3390/plants11131666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/16/2022] [Accepted: 06/21/2022] [Indexed: 11/17/2022]
Abstract
Background: Bulgaria is a country with a wide range of medicinal plants, with uses in traditional medicine dating back for centuries. Methods: Disc diffusion assay was used to evaluate the antimicrobial activity of the plant extracts. A cytopathic effect inhibition test was used for the assessment of the antiviral activity of the extracts. The virucidal activity of the extracts, their influence on the stage of viral adsorption, and their protective effect on uninfected cells were reported using the end-point dilution method, and Δlgs was determined as compared to the untreated controls. Results: The results of the study reveal that the antibacterial potential of G. glabra and H. perforatum extracts in Gram-positive bacteria is more effective than in Gram-negative bacteria. When applied during the replication of HSV-1 and HCov-OC-43, only some of the extracts showed weak activity, with SI between 2 to 8.5. Almost all tested extracts inhibited the extracellular virions of the studied enveloped viruses (HSV-1 and HCov-OC-43) to a greater extent than of the non-enveloped viruses (PV-1 and HAdV-5). They inhibited the stage of viral adsorption (HSV-1) in the host cell (MDBK) to varying degrees and showed a protective effect on healthy cells (MDBK) before they were subjected to viral invasion (HSV-1). Conclusion: The antipathogenic potential of extracts of H. perforatum and G. glabra suggests their effectiveness as antimicrobial agents. All 13 extracts of the Bulgarian medicinal plants studied can be used to reduce viral yield in a wide range of viral infections.
Collapse
|
10
|
Veltman B, Harpaz D, Melamed S, Tietel Z, Tsror L, Eltzov E. Whole-cell bacterial biosensor for volatile detection from Pectobacterium-infected potatoes enables early identification of potato tuber soft rot disease. Talanta 2022; 247:123545. [PMID: 35597022 DOI: 10.1016/j.talanta.2022.123545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/08/2022] [Accepted: 05/10/2022] [Indexed: 11/26/2022]
Abstract
Half of the harvested food is lost due to rots caused by microorganisms. Plants emit various volatile organic compounds (VOCs) into their surrounding environment, and the VOC profiles of healthy crops are altered upon infection. In this study, a whole-cell bacterial biosensor was used for the early identification of potato tuber soft rot disease caused by the pectinolytic bacteria Pectobacterium in potato tubers. The detection is based on monitoring the luminescent responses of the bacteria panel to changes in the VOC profile following inoculation. First, gas chromatography-mass spectrometry (GC-MS) was used to specify the differences between the VOC patterns of the inoculated and non-inoculated potato tubers during early infection. Five VOCs were identified, 1-octanol, phenylethyl alcohol, 2-ethyl hexanol, nonanal, and 1-octen-3-ol. Then, the infection was detected by the bioreporter bacterial panel, firstly measured in a 96-well plate in solution, and then also tested in potato plugs and validated in whole tubers. Examination of the bacterial panel responses showed an extensive cytotoxic effect over the testing period, as seen by the elevated induction factor (IF) values in the bacterial strain TV1061 after exposure to both potato plugs and whole tubers. Moreover, quorum sensing influences were also observed by the elevated IF values in the bacterial strain K802NR. The developed whole-cell biosensor system based on bacterial detection will allow more efficient crop management during postharvest, storage, and transport of crops, to reduce food losses.
Collapse
Affiliation(s)
- Boris Veltman
- Institute of Postharvest and Food Science, Department of Postharvest Science, Volcani Institute, Agricultural Research Organization, Rishon LeZion, 7505101, Israel; Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, 76100, Israel.
| | - Dorin Harpaz
- Institute of Postharvest and Food Science, Department of Postharvest Science, Volcani Institute, Agricultural Research Organization, Rishon LeZion, 7505101, Israel; Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, 76100, Israel.
| | - Sarit Melamed
- Department of Food Science, Gilat Research Center, Agricultural Research Organization, M.P, Negev, 8531100, Israel.
| | - Zipora Tietel
- Department of Food Science, Gilat Research Center, Agricultural Research Organization, M.P, Negev, 8531100, Israel.
| | - Leah Tsror
- Department of Plant Pathology and Weed Research, Institute of Plant Protection, Gilat Research Center, Agricultural Research Organization, M.P, Negev, 8531100, Israel.
| | - Evgeni Eltzov
- Institute of Postharvest and Food Science, Department of Postharvest Science, Volcani Institute, Agricultural Research Organization, Rishon LeZion, 7505101, Israel.
| |
Collapse
|
11
|
Quorum quenching action of marine red alga Halemenia durvillei on biofilm forming Gram negative bacterial isolates from contact lens. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
12
|
Mujawdiya PK, Kapur S. Modulation of Gut Microbiota through Dietary Phytochemicals as a Novel Anti-infective Strategy. Curr Drug Discov Technol 2021; 17:498-506. [PMID: 31702513 DOI: 10.2174/1570163816666191107124214] [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: 02/06/2019] [Revised: 05/08/2019] [Accepted: 09/08/2019] [Indexed: 02/07/2023]
Abstract
Quorum Sensing (QS) is a phenomenon in which bacterial cells communicate with each other with the help of several low molecular weight compounds. QS is largely dependent on population density, and it triggers when the concentration of quorum sensing molecules accumulate in the environment and crosses a particular threshold. Once a certain population density is achieved and the concentration of molecules crosses a threshold, the bacterial cells show a collective behavior in response to various chemical stimuli referred to as "auto-inducers". The QS signaling is crucial for several phenotypic characteristics responsible for bacterial survival such as motility, virulence, and biofilm formation. Biofilm formation is also responsible for making bacterial cells resistant to antibiotics. The human gut is home to trillions of bacterial cells collectively called "gut microbiota" or "gut microbes". Gut microbes are a consortium of more than 15,000 bacterial species and play a very crucial role in several body functions such as metabolism, development and maturation of the immune system, and the synthesis of several essential vitamins. Due to its critical role in shaping human survival and its modulating impact on body metabolisms, the gut microbial community has been referred to as "the forgotten organ" by O`Hara et al. (2006) [1]. Several studies have demonstrated that chemical interaction between the members of bacterial cells in the gut is responsible for shaping the overall microbial community. Recent advances in phytochemical research have generated a lot of interest in finding new, effective, and safer alternatives to modern chemical-based medicines. In the context of antimicrobial research various plant extracts have been identified with Quorum Sensing Inhibitory (QSI) activities among bacterial cells. This review focuses on the mechanism of quorum sensing and quorum sensing inhibitors isolated from natural sources.
Collapse
Affiliation(s)
- Pavan K Mujawdiya
- Department of Biological Sciences, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad- 500078, India
| | - Suman Kapur
- Department of Biological Sciences, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad- 500078, India
| |
Collapse
|
13
|
Nigussie D, Davey G, Tufa TB, Brewster M, Legesse BA, Fekadu A, Makonnen E. Antibacterial and Antifungal Activities of Ethiopian Medicinal Plants: A Systematic Review. Front Pharmacol 2021; 12:633921. [PMID: 34140888 PMCID: PMC8203926 DOI: 10.3389/fphar.2021.633921] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 05/14/2021] [Indexed: 12/19/2022] Open
Abstract
Background: Podoconiosis and lymphatic filariasis are the most common causes of lower limb lymphoedema in the tropics. Many sufferers experience frequent painful episodes of acute bacterial infection. Plant based traditional medicines are used to treat infections in many countries and are culturally established in Ethiopia. Ethiopian medicinal plants found to have antibacterial and antifungal activities were reviewed with the aim of increasing information about the treatment of wound infections in patients with lymphoedema. Methods: This study collates data from published articles on medicinal plants with antibacterial and antifungal activities in Ethiopia. A systematic search of Scopus, EMBASE, PUBMED/MEDLINE and Google Scholar was undertaken. The Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines were followed. The protocol was registered on PROSPERO with registration number CRD42019127471. All controlled studies of in vitro antibacterial and antifungal activities were considered. All articles containing the descriptors published until June 28, 2019 were included. The outcome was measured as percent inhibition of microbial growth. For quality assessment of individual in vitro studies, OECD guidelines and the WHO-Good Laboratory Practice (GLP) handbook were used. Results: Seventy-nine studies met the inclusion criteria. A total of 150 plant species and three compounds had been tested against 42 species of bacteria, while 43 plant species had been tested against 22 species of fungus. Conclusion: Materials derived from several Ethiopian medicinal plants have been shown to have promising activity against a variety of bacteria and fungi. Those derived from Azadiractha indica A. Juss. and Lawsonia inerms L. are the most extensively studied against a wide range of gram-negative and positive bacteria, and fungal species.
Collapse
Affiliation(s)
- Dereje Nigussie
- Centre for Innovative Drug Development and Therapeutic Trials for Africa (CDT-Africa), College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Centre for Global Health Research, Brighton and Sussex Medical School, University of Sussex, Brighton, United Kingdom
| | - Gail Davey
- Centre for Global Health Research, Brighton and Sussex Medical School, University of Sussex, Brighton, United Kingdom
- School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
| | - Takele Beyene Tufa
- Department of Biomedical Sciences, College of Veterinary Medicine and Agriculture, Addis Ababa University, Addis Ababa, Ethiopia
| | | | - Belete Adefris Legesse
- Centre for Innovative Drug Development and Therapeutic Trials for Africa (CDT-Africa), College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Abebaw Fekadu
- Centre for Innovative Drug Development and Therapeutic Trials for Africa (CDT-Africa), College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Centre for Global Health Research, Brighton and Sussex Medical School, University of Sussex, Brighton, United Kingdom
| | - Eyasu Makonnen
- Centre for Innovative Drug Development and Therapeutic Trials for Africa (CDT-Africa), College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Department of Pharmacology and Clinical Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| |
Collapse
|
14
|
Chandrashekar S, Vijayakumar R, Chelliah R, Daliri EBM, Madar IH, Sultan G, Rubab M, Elahi F, Yeon SJ, Oh DH. In Vitro and In Silico Screening and Characterization of Antimicrobial Napin Bioactive Protein in Brassica juncea and Moringa oleifera. Molecules 2021; 26:2080. [PMID: 33916405 PMCID: PMC8038560 DOI: 10.3390/molecules26072080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/23/2021] [Accepted: 03/31/2021] [Indexed: 11/16/2022] Open
Abstract
The study aimed to investigate the antibacterial activity of Mustard (Brassica juncea) and Moringa (Moringa oleifera) leaf extracts and coagulant protein for their potential application in water treatment. Bacterial cell aggregation and growth kinetics studies were employed for thirteen bacterial strains with different concentrations of leaf extracts and coagulant protein. Moringa oleifera leaf extract (MOS) and coagulant protein showed cell aggregation against ten bacterial strains, whereas leaf extract alone showed growth inhibition of five bacterial strains for up to 6 h and five bacterial strains for up to 3 h. Brassica juncea leaf extract (BJS) showed growth inhibition for up to 6 h, and three bacterial strains showed inhibition for up to 3 h. The highest inhibition concentration with 2.5 mg/mL was 19 mm, and furthermore, the minimum inhibitory concentration (MIC) (0.5 mg/mL) and MBC (1.5 mg/mL) were determined to have a higher antibacterial effect for <3 KDa peptides. Based on LCMS analysis, napin was identified in both MOS and BJS; furthermore, the mode of action of napin peptide was determined on lipoprotein X complex (LpxC) and four-chained structured binding protein of bacterial type II topoisomerase (4PLB). The docking analysis has exhibited moderate to potent inhibition with a range of dock score -912.9 Kcal/mol. Thus, it possesses antibacterial-coagulant potential bioactive peptides present in the Moringa oleifera purified protein (MOP) and Brassica juncea purified protein (BJP) that could act as an effective antimicrobial agent to replace currently available antibiotics. The result implies that MOP and Brassica juncea purified coagulant (BJP) proteins may perform a wide degree of antibacterial functions against different pathogens.
Collapse
Affiliation(s)
- Sangeeta Chandrashekar
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea; (S.C.); (E.B.-M.D.); (M.R.); (F.E.); (S.-J.Y.)
- Department of Physiology, Bharath Institute of Higher Education and Research, Chennai 600073, India
| | - Raman Vijayakumar
- Department of Physiology, Bharath Institute of Higher Education and Research, Chennai 600073, India
| | - Ramachandran Chelliah
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea; (S.C.); (E.B.-M.D.); (M.R.); (F.E.); (S.-J.Y.)
| | - Eric Banan-Mwine Daliri
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea; (S.C.); (E.B.-M.D.); (M.R.); (F.E.); (S.-J.Y.)
| | - Inamul Hasan Madar
- Department of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathidasan University, Tiruchirappalli 620024, India;
| | - Ghazala Sultan
- Department of Computer Science, Aligarh Muslim University, Aligarh 202002, India;
| | - Momna Rubab
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea; (S.C.); (E.B.-M.D.); (M.R.); (F.E.); (S.-J.Y.)
- School of Food and Agricultural Sciences, University of Management and Technology, Lahore 54770, Pakistan
| | - Fazle Elahi
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea; (S.C.); (E.B.-M.D.); (M.R.); (F.E.); (S.-J.Y.)
| | - Su-Jung Yeon
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea; (S.C.); (E.B.-M.D.); (M.R.); (F.E.); (S.-J.Y.)
| | - Deog-Hwan Oh
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea; (S.C.); (E.B.-M.D.); (M.R.); (F.E.); (S.-J.Y.)
| |
Collapse
|
15
|
Bhatia P, Sharma A, George AJ, Anvitha D, Kumar P, Dwivedi VP, Chandra NS. Antibacterial activity of medicinal plants against ESKAPE: An update. Heliyon 2021; 7:e06310. [PMID: 33718642 PMCID: PMC7920328 DOI: 10.1016/j.heliyon.2021.e06310] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/28/2020] [Accepted: 02/15/2021] [Indexed: 12/25/2022] Open
Abstract
Antibiotic resistance has emerged as a threat to global health, food security, and development today. Antibiotic resistance can occur naturally but mainly due to misuse or overuse of antibiotics, which results in recalcitrant infections and Antimicrobial Resistance (AMR) among bacterial pathogens. These mainly include the MDR strains (multi-drug resistant) of ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species). These bacterial pathogens have the potential to “escape” antibiotics and other traditional therapies. These bacterial pathogens are responsible for the major cases of Hospital-Acquired Infections (HAI) globally. ESKAPE Pathogens have been placed in the list of 12 bacteria by World Health Organisation (WHO), against which development of new antibiotics is vital. It not only results in prolonged hospital stays but also higher medical costs and higher mortality. Therefore, new antimicrobials need to be developed to battle the rapidly evolving pathogens. Plants are known to synthesize an array of secondary metabolites referred as phytochemicals that have disease prevention properties. Potential efficacy and minimum to no side effects are the key advantages of plant-derived products, making them suitable choices for medical treatments. Hence, this review attempts to highlight and discuss the application of plant-derived compounds and extracts against ESKAPE Pathogens.
Collapse
Affiliation(s)
- Priya Bhatia
- Department of Microbiology, Ram Lal Anand College, University of Delhi, Benito Juarez Road, New Delhi 110021, India
| | - Anushka Sharma
- Department of Microbiology, Ram Lal Anand College, University of Delhi, Benito Juarez Road, New Delhi 110021, India
| | - Abhilash J George
- Department of Microbiology, Ram Lal Anand College, University of Delhi, Benito Juarez Road, New Delhi 110021, India
| | - D Anvitha
- Department of Microbiology, Ram Lal Anand College, University of Delhi, Benito Juarez Road, New Delhi 110021, India
| | - Pragya Kumar
- Department of Microbiology, Ram Lal Anand College, University of Delhi, Benito Juarez Road, New Delhi 110021, India
| | - Ved Prakash Dwivedi
- Immunobiology Group, International Center for Genetic Engineering and Biotechnology, New Delhi 110067, India
| | - Nidhi S Chandra
- Department of Microbiology, Ram Lal Anand College, University of Delhi, Benito Juarez Road, New Delhi 110021, India
| |
Collapse
|
16
|
Mahavy CE, Duez P, ElJaziri M, Rasamiravaka T. African Plant-Based Natural Products with Antivirulence Activities to the Rescue of Antibiotics. Antibiotics (Basel) 2020; 9:antibiotics9110830. [PMID: 33228261 PMCID: PMC7699609 DOI: 10.3390/antibiotics9110830] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/14/2020] [Accepted: 11/16/2020] [Indexed: 12/14/2022] Open
Abstract
The worldwide emergence of antibiotic-resistant bacteria and the thread of widespread superbug infections have led researchers to constantly look for novel effective antimicrobial agents. Within the past two decades, there has been an increase in studies attempting to discover molecules with innovative properties against pathogenic bacteria, notably by disrupting mechanisms of bacterial virulence and/or biofilm formation which are both regulated by the cell-to-cell communication mechanism called ‘quorum sensing’ (QS). Certainly, targeting the virulence of bacteria and their capacity to form biofilms, without affecting their viability, may contribute to reduce their pathogenicity, allowing sufficient time for an immune response to infection and a reduction in the use of antibiotics. African plants, through their huge biodiversity, present a considerable reservoir of secondary metabolites with a very broad spectrum of biological activities, a potential source of natural products targeting such non-microbicidal mechanisms. The present paper aims to provide an overview on two main aspects: (i) succinct presentation of bacterial virulence and biofilm formation as well as their entanglement through QS mechanisms and (ii) detailed reports on African plant extracts and isolated compounds with antivirulence properties against particular pathogenic bacteria.
Collapse
Affiliation(s)
- Christian Emmanuel Mahavy
- Laboratory of Biotechnology and Microbiology, University of Antananarivo, BP 906 Antananarivo 101, Madagascar;
- Laboratory of Plant Biotechnology, Université Libre de Bruxelles, B-1050 Brussels, Belgium;
| | - Pierre Duez
- Unit of Therapeutic Chemistry and Pharmacognosy, University of Mons, 7000 Mons, Belgium;
| | - Mondher ElJaziri
- Laboratory of Plant Biotechnology, Université Libre de Bruxelles, B-1050 Brussels, Belgium;
| | - Tsiry Rasamiravaka
- Laboratory of Biotechnology and Microbiology, University of Antananarivo, BP 906 Antananarivo 101, Madagascar;
- Correspondence: ; Tel.: +261-32-61-903-38
| |
Collapse
|
17
|
Chandrashekar S, Vijayakumar R, Chelliah R, Oh DH. Identification and Purification of Potential Bioactive Peptide of Moringa oleifera Seed Extracts. PLANTS 2020; 9:plants9111445. [PMID: 33120901 PMCID: PMC7716235 DOI: 10.3390/plants9111445] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/21/2020] [Accepted: 10/24/2020] [Indexed: 11/16/2022]
Abstract
The aim of the study was to investigate the antibacterial and anticoagulant activity of Moringa (Moringa oleifera) seed extracts and coagulant protein for their potential application in water treatment. Pathogenic microorganisms were obtained from Ramachandra Hospital, Chennai, India. Bacterial cell aggregation and growth kinetics studies were employed for six bacterial strains with different concentrations of seed extracts and coagulant protein. Moringa seed extract and coagulant protein showed cell aggregation against six bacterial strains, whereas seed extract alone showed growth inhibition of all six bacterial strains for up to 6 h, compared to that of control. Escherichia coli and Salmonella para typhi B did not develop resistance against coagulant protein. The results imply that Moringa oleifera is likely an efficient low-molecular bioactive peptide (with <7.5 kDa plant-based coagulant and antimicrobial peptides, confirmed by applying amino acid sequences), using liquid chromatography–mass spectrometry and HPLC, with the corresponding sequences from Napin-1A peptide posing different degrees of antibacterial activity against different pathogenic organisms.
Collapse
Affiliation(s)
- Sangeeta Chandrashekar
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea;
- Department of Physiology, Bharath Institute of Higher Education and Research, Chennai 600 073, India
| | - Raman Vijayakumar
- Department of Physiology, Bharath Institute of Higher Education and Research, Chennai 600 073, India
- Correspondence: (R.V.); (R.C.); (D.-H.O.); Tel.: +82-33-250-6457 (D.-H.O.)
| | - Ramachandran Chelliah
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea;
- Correspondence: (R.V.); (R.C.); (D.-H.O.); Tel.: +82-33-250-6457 (D.-H.O.)
| | - Deog-Hwan Oh
- Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea;
- Correspondence: (R.V.); (R.C.); (D.-H.O.); Tel.: +82-33-250-6457 (D.-H.O.)
| |
Collapse
|
18
|
Poikulainen E, Tienaho J, Sarjala T, Santala V. A panel of bioluminescent whole-cell bacterial biosensors for the screening for new antibacterial substances from natural extracts. J Microbiol Methods 2020; 178:106083. [PMID: 33068680 DOI: 10.1016/j.mimet.2020.106083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 10/01/2020] [Accepted: 10/07/2020] [Indexed: 01/14/2023]
Abstract
Whole-cell bacterial biosensors can be applied for the screening of antibacterial properties of extracts. We constructed a biosensor panel consisting of four different bacterial biosensor strains: Escherichia, Staphylococcus, Acinetobacter and Pseudomonas for expanded screening potential. The functionality of the panel was first evaluated with known antibacterial compounds: ethanol, naphthoquinones (juglone, lawsone, plumbagin) and a flavonoid (quercetin). Natural extracts comprise a vast source of potential new antibacterials for diverse functional purposes. To demonstrate the utilization of the panel for screening of a demanding sample material, round-leaved sundew (Drosera rotundifolia) extracts were used as an example. Differences between field- and laboratory originating sundew extracts could be detected. This demonstrates the efficiency of the developed biosensor panel in the rapid screening of the antibacterial properties of plant extracts.
Collapse
Affiliation(s)
- Emmi Poikulainen
- Faculty of Engineering and Natural Sciences, Tampere University, Hervanta campus, Korkeakoulunkatu 8, 33720 Tampere, Finland.
| | - Jenni Tienaho
- Faculty of Engineering and Natural Sciences, Tampere University, Hervanta campus, Korkeakoulunkatu 8, 33720 Tampere, Finland; Natural Resources Institute Finland, Kaironiementie 15, 39700 Parkano, Finland
| | - Tytti Sarjala
- Natural Resources Institute Finland, Kaironiementie 15, 39700 Parkano, Finland
| | - Ville Santala
- Faculty of Engineering and Natural Sciences, Tampere University, Hervanta campus, Korkeakoulunkatu 8, 33720 Tampere, Finland
| |
Collapse
|
19
|
Karthick Raja Namasivayam S, Angel J, Bharani RSA, Nachiyar CV. Terminalia chebula and Ficus racemosa principles mediated repression of novel drug target Las R - the transcriptional regulator and its controlled virulence factors produced by multiple drug resistant Pseudomonas aeruginosa - Biocompatible formulation against drug resistant bacteria. Microb Pathog 2020; 148:104412. [PMID: 32798672 DOI: 10.1016/j.micpath.2020.104412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 02/19/2020] [Accepted: 07/20/2020] [Indexed: 01/24/2023]
Abstract
Pseudomonas aeruginosa- major group of an aerobic bacteria associated with nosocomial and other life threatening infections. Diverse virulence factors produced by P. aeruginosa is due to distinct molecular cell signaling mechanism termed as quorum sensing (QS). Interfering with normal QS mechanism by active biomolecules is an effective strategy for attenuating its virulence. With this objective, the present study is undertaken to evaluate the inhibition of quorum sensing of clinical isolate of P. aeruginosa by repression of Las R-a transcriptional regulator for QS by ethanol extract of Terminalia chebula and Ficus racemosa. Las R repression by the plant extracts was measured in inhibition of various virulence factors like biofilm, pyocyanin production, total proteolytic activity, swarming and twisting motility. Fabrication of the extracted metabolites on the wound dressing and its effect on anti bacterial activity was also investigated. Compatibility of plant extracts on zebra fish development and blood cells was further studied. P. aeruginosa was isolated from the post operative patient and the isolated pure culture was identified by cultural, biochemical, molecular characteristics. Active principles of both the plants were readily extracted in ethanol and effectively repressed the expression of Las R. Both the tested plant extracts effectively repressed Las R expression which in turn affect the production of various virulence factors like biofilm formation, pyocyanin production, swarming motility, twisting motility, total proteolytic activity, cell adhesion and signaling molecule acyl honoserine lactone (AHL) production. Plant extract treatment brought about drastic reduction of all the tested virulence factors and AHL production. Extracted metabolites were fabricated on the wound dressing material adopting simple dip or immersion method reveals uniform coating, effective embedding of phytochemicals with the fibers and retained the anti bacterial activity against P. aeruginosa. Biocompatibility studies with zebra fish model shows both the tested plant extracts treatment was not exhibited any sign of toxicity on the developmental stages of Zebra fish. Hemolysis and changes in anti oxidative enzymes were not recorded in the plant extracts treated blood which demonstrated the best biocompatibility of the tested plant extracts. These results shows that the presence of potential phytochemicals in the ethanolic extract of Terminalia chebula and Ficus racemosa effectively represses the Las R followed by inhibition of quorum sensing mediated virulence factors production may be useful in the lead of anti bacterial drugs.
Collapse
Affiliation(s)
- S Karthick Raja Namasivayam
- Centre for Bioresource Research & Development (C-BIRD), Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India.
| | - Jerry Angel
- Centre for Bioresource Research & Development (C-BIRD), Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India
| | - R S Arvind Bharani
- Centre for Bioresource Research & Development (C-BIRD), Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India
| | - C Valli Nachiyar
- Centre for Bioresource Research & Development (C-BIRD), Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India
| |
Collapse
|
20
|
Hernando-Amado S, Alcalde-Rico M, Gil-Gil T, Valverde JR, Martínez JL. Naringenin Inhibition of the Pseudomonas aeruginosa Quorum Sensing Response Is Based on Its Time-Dependent Competition With N-(3-Oxo-dodecanoyl)-L-homoserine Lactone for LasR Binding. Front Mol Biosci 2020; 7:25. [PMID: 32181260 PMCID: PMC7059128 DOI: 10.3389/fmolb.2020.00025] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/07/2020] [Indexed: 12/23/2022] Open
Abstract
Bacterial quorum sensing (QS) is a cell-to-cell communication system that governs the expression of a large set of genes involved in bacterial-host interactions, including the production of virulence factors. Conversely, the hosts can produce anti-QS compounds to impair virulence of bacterial pathogens. One of these inhibitors is the plant flavonoid naringenin, which impairs the production of QS-regulated Pseudomonas aeruginosa virulence factors. In the present work, we analyze the molecular basis for such inhibition. Our data indicate that naringenin produces its effect by directly binding the QS regulator LasR, hence competing with its physiological activator, N-(3-oxo-dodecanoyl)-L-homoserine lactone (3OC12-HSL). The in vitro analysis of LasR binding to its cognate target DNA showed that the capacity of naringenin to outcompete 3OC12-HSL, when the latter is previously bound to LasR, is low. By using an E. coli LasR-based biosensor strain, which does not produce 3OC12-HSL, we determined that the inhibition of LasR is more efficient when naringenin binds to nascent LasR than when this regulator is already activated through 3OC12-HSL binding. According to these findings, at early exponential growth phase, when the amount of 3OC12-HSL is low, naringenin should proficiently inhibit the P. aeruginosa QS response, whereas at later stages of growth, once 3OC12-HSL concentration reaches a threshold enough for binding LasR, naringenin would not efficiently inhibit the QS response. To test this hypothesis, we analyze the potential effect of naringenin over the QS response by adding naringenin to P. aeruginosa cultures at either time zero (early inhibition) or at stationary growth phase (late inhibition). In early inhibitory conditions, naringenin inhibited the expression of QS-regulated genes, as well as the production of the QS-regulated virulence factors, pyocyanin and elastase. Nevertheless, in late inhibitory conditions, the P. aeruginosa QS response was not inhibited by naringenin. Therefore, this time-dependent inhibition may compromise the efficiency of this flavonoid, which will be effective just when used against bacterial populations presenting low cellular densities, and highlight the importance of searching for QS inhibitors whose mechanism of action does not depend on the QS status of the population.
Collapse
Affiliation(s)
- Sara Hernando-Amado
- Departamento de Biotecnología Microbiana, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Manuel Alcalde-Rico
- Departamento de Biotecnología Microbiana, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
- Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
- Millennium Nucleus for Collaborative Research on Bacterial Resistance, Valparaíso, Chile
| | - Teresa Gil-Gil
- Departamento de Biotecnología Microbiana, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - José R. Valverde
- Servicio de Computación Científica, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - José L. Martínez
- Departamento de Biotecnología Microbiana, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| |
Collapse
|
21
|
Unlocking the Secret of Bio-additive Components in Rubber Compounding in Processing Quality Nitrile Glove. Appl Biochem Biotechnol 2020; 191:1-28. [DOI: 10.1007/s12010-019-03207-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/05/2019] [Indexed: 12/25/2022]
|
22
|
Gupta K, Daroch P, Harjai K, Chhibber S. Parallels among natural and synthetically modified quorum-quenching strategies as convoy to future therapy. Microbiology (Reading) 2019; 165:1265-1281. [DOI: 10.1099/mic.0.000826] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Kshitiz Gupta
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Priya Daroch
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Kusum Harjai
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Sanjay Chhibber
- Department of Microbiology, Panjab University, Chandigarh, India
| |
Collapse
|
23
|
Ucak Ozkaya G, Durak MZ, Akyar I, Karatuna O. Antimicrobial Susceptibility Test for the Determination of Resistant and Susceptible S. aureus and Enterococcus spp. Using a Multi-Channel Surface Plasmon Resonance Device. Diagnostics (Basel) 2019; 9:E191. [PMID: 31731591 PMCID: PMC6963824 DOI: 10.3390/diagnostics9040191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/06/2019] [Accepted: 11/12/2019] [Indexed: 11/17/2022] Open
Abstract
The objective of this study was to investigate the development of a surface plasmon resonance (SPR) sensor platform equipped with multiple channels for the simultaneous determination of methicillin-resistant S. aureus (MRSA), methicillin-susceptible S. aureus (MSSA) and vancomycin-resistant Enterococcus (VRE), and vancomycin-susceptible Enterococcus (VSE). Drug resistance of S. aureus strains against cefoxitin and Enterococcus strains against vancomycin were investigated both using the minimum inhibitory concentration method (MIC) assay and the SPR system equipped with single and multiple channels. The MIC values of MRSA and MSSA ranged from 32 µg/mL to >128 µg/mL and from 1 µg/mL to 4 µg/mL, respectively. The MIC values of VRE and VSE were between 64 to >128 µg/mL and 2-4 µg/mL, respectively. With the multiple-channel system, the angle shifts of MRSA, MSSA, VRE and VSE were found to be -0.030° and -0.260°, -0.010° and -0.090° respectively. The antibiotic-resistant and susceptible strains were distinguished within 3 h for S. aureus strains and within 6 h for Enterococcus strains.
Collapse
Affiliation(s)
- Gulsum Ucak Ozkaya
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul 34210, Turkey
- Department of Food Engineering, Faculty of Engineering and Architecture, Bitlis Eren University, Bitlis 13000, Turkey
| | - Muhammed Zeki Durak
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul 34210, Turkey
| | - Isin Akyar
- Department of Medical Microbiology, School of Medicine, Acibadem University, Istanbul 34752, Turkey; (I.A.); (O.K.)
| | - Onur Karatuna
- Department of Medical Microbiology, School of Medicine, Acibadem University, Istanbul 34752, Turkey; (I.A.); (O.K.)
| |
Collapse
|
24
|
Wang W, Huang X, Yang H, Niu X, Li D, Yang C, Li L, Zou L, Qiu Z, Wu S, Li Y. Antibacterial Activity and Anti-Quorum Sensing Mediated Phenotype in Response to Essential Oil from Melaleuca bracteata Leaves. Int J Mol Sci 2019; 20:E5696. [PMID: 31739398 PMCID: PMC6887945 DOI: 10.3390/ijms20225696] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/03/2019] [Accepted: 11/11/2019] [Indexed: 12/23/2022] Open
Abstract
The prominent antibacterial and quorum sensing (QS) inhibition activity of aromatic plants can be used as a novel intervention strategy for attenuating bacterial pathogenicity. In the present work, a total of 29 chemical components were identified in the essential oil (EO) of Melaleuca bracteata leaves by gas chromatography-mass spectrometry (GC-MS). The principal component was methyleugenol, followed by methyl trans-cinnamate, with relative contents of 90.46% and 4.25%, respectively. Meanwhile, the antibacterial activity and the QS inhibitory activity of M. bracteata EO were first evaluated here. Antibacterial activity assay and MIC detection against seven pathogens (Dickeya dadantii Onc5, Staphylococcus aureus ATCC25933, Pseudomonas spp., Escherichia coli ATCC25922, Serratia marcescens MG1, Pseudomonas aeruginosa PAO1 and Chromobacterium violaceum ATCC31532) demonstrated that S. aureus ATCC25933 and S. marcescens MG1 had the higher sensitivity to M. bracteata EO, while P. aeruginosa PAO1 displayed the strongest resistance to M. bracteata EO. An anti-QS (anti-quorum sensing) assay revealed that at sub-minimal inhibitory concentrations (sub-MICs), M. bracteata EO strongly interfered with the phenotype, including violacein production, biofilm biomass, and swarming motility, as well as N-hexanoyl-L-homoserine lactone (C6-HSL) production (i.e., a signaling molecule in C. violaceum ATCC31532) of C. violaceum. Detection of C6-HSL indicated that M. bracteata EO was capable of not only inhibiting C6-HSL production in C. violaceum, but also degrading the C6-HSL. Importantly, changes of exogenous C6-HSL production in C. violaceum CV026 revealed a possible interaction between M. bracteata EO and a regulatory protein (cviR). Additionally, quantitative real-time polymerase chain reaction (RT-qPCR) analysis demonstrated that the expression of QS-related genes (cviI, cviR, vioABCDE, hmsNR, lasA-B, pilE1, pilE3, and hcnB) was significantly suppressed. Conclusively, these results indicated that M. bracteata EO can act as a potential antibacterial agent and QS inhibitor (QSI) against pathogens, preventing and controlling bacterial contamination.
Collapse
Affiliation(s)
- Wenting Wang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| | - Xiaoqin Huang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| | - Huixiang Yang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| | - Xianqian Niu
- Fujian Institute of Tropical Crops, Zhangzhou 363001, China;
| | - Dongxiang Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| | - Chao Yang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| | - Liang Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| | - Liting Zou
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| | - Ziwen Qiu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| | - Shaohua Wu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| | - Yongyu Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.W.); (X.H.); (H.Y.); (D.L.); (C.Y.); (L.L.); (L.Z.); (Z.Q.)
| |
Collapse
|
25
|
El-Gohary N, Hawas S, Gabr M, Shaaban M, El-Ashmawy M. New series of fused pyrazolopyridines: Synthesis, molecular modeling, antimicrobial, antiquorum-sensing and antitumor activities. Bioorg Chem 2019; 92:103109. [DOI: 10.1016/j.bioorg.2019.103109] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 07/02/2019] [Accepted: 07/04/2019] [Indexed: 02/07/2023]
|
26
|
Sood H, Kumar Y, Gupta VK, Arora DS. Scientific validation of the antimicrobial and antiproliferative potential of Berberis aristata DC root bark, its phytoconstituents and their biosafety. AMB Express 2019; 9:143. [PMID: 31512002 PMCID: PMC6738363 DOI: 10.1186/s13568-019-0868-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 08/30/2019] [Indexed: 11/16/2022] Open
Abstract
Berberis aristata is an important part of traditional healing system from more than 2500 years. The aqueous extract of Berberis aristata root bark displayed broad spectrum activity against 13 test pathogens, ranging from 12 to 25 mm. In classical optimization, 15% concentration prepared at 40 °C for 40 min was optimal and thermostable. Statistical optimization enhanced the activity by 1.13–1.30-folds. Ethyl acetate was the best organic solvent to elute out the potential compound responsible for antimicrobial activity. Diterpenes were the most abundant phytoconstituent (15.3%) and showed broad spectrum antimicrobial activity ranging from 16.66 to 42.66 mm. Ethyl acetate extract displayed the lowest minimum inhibitory concentration (0.05–1 mg/mL), followed by diterpenes (0.05–5 mg/mL) and flavonoids (0.05–10 mg/mL). The test extracts were microbicidal in nature and showed a prolonged post antibiotic effect ranging from 2 to 8 h. They were found to be biosafe as per Ames and MTT assay. The in vitro cytotoxicity evaluation of diterpenes against L20B, RD and Hep 2 cell lines revealed its IC50 ranging from 245 to 473 µg/mL. Acute oral toxicity of diterpenes on Swiss albino mice did not show any changes in behavioral pattern, body weight, biochemical parameters as well as organs’ architecture. The study thus indicates B. aristata could be a potential candidate for development of potent drug owing to its antimicrobial potential and biosafe profile.
Collapse
|
27
|
Delgado T, Paula VB, Campos MG, Farinha N, Caeiro A, Estevinho LM, Anjos O. Screening of Biological Activities of Ligustrum lucidum Berries: A Comparative Approach. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801301227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Ligustrum lucidum Aiton including its berries have been used in Chinese Traditional Medicine for around 2000 years. Scientific studies developed on the last decades provided evidence on some biological properties of these products, mostly from particular geographic origins. In the present study, L. lucidium berries harvested in two regions of Portugal were considered. Extracts obtained with 100% ethanol, with 50% ethanol/water (v/v) and in boiled water were prepared and several parameters were assessed: antioxidant activity (using two methodologies), antimicrobial activity and phenolic profile. Results suggest that the different biological activities varied according to the region where samples were collected but also with the extraction methodology. Superior antioxidant potential was observed in water extracts, according to both assays, while for the remaining activities the ethanol 50% extracts had the highest activity. In these regions, the L. lucidum berries showed promising biological activities and may be interesting sources of compounds for the development of new drugs for diseases where oxidant reactive species and enzymatic disruption are believed to play a role as well as adjuvants for current antibiotic therapy.
Collapse
Affiliation(s)
- Teresa Delgado
- Centro de Biotecnologia de Plantas da Beira Interior, Castelo Branco, Portugal
| | - Vanessa B. Paula
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Maria Graça Campos
- Observatory of Drug-Herb Interactions, Faculty of Pharmacy, University of Coimbra, Heath Sciences Campus, Coimbra Portugal
- Coimbra Chemistry Centre (CQC, FCT Unit 313) (FCTUC) University of Coimbra, Coimbra, Portugal
| | - Nelson Farinha
- Centro de Biotecnologia de Plantas da Beira Interior, Castelo Branco, Portugal
| | - André Caeiro
- Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Leticia M. Estevinho
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Ofélia Anjos
- Centro de Biotecnologia de Plantas da Beira Interior, Castelo Branco, Portugal
- Instituto Politécnico de Castelo Branco, Castelo Branco, Portugal
- Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade Lisboa, Lisboa, Portugal
| |
Collapse
|
28
|
Subhaswaraj P, Barik S, Macha C, Chiranjeevi PV, Siddhardha B. Anti quorum sensing and anti biofilm efficacy of cinnamaldehyde encapsulated chitosan nanoparticles against Pseudomonas aeruginosa PAO1. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.08.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
29
|
Noumi E, Snoussi M, Alreshidi MM, Rekha PD, Saptami K, Caputo L, De Martino L, Souza LF, Msaada K, Mancini E, Flamini G, Al-Sieni A, De Feo V. Chemical and Biological Evaluation of Essential Oils from Cardamom Species. Molecules 2018; 23:molecules23112818. [PMID: 30380739 PMCID: PMC6278479 DOI: 10.3390/molecules23112818] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/18/2018] [Accepted: 10/25/2018] [Indexed: 11/23/2022] Open
Abstract
To highlight the importance of the spices in the Mediterranean diet, the aim of the paper was to study the essential oil compositions and to clarify the potential differences in the biological activities of the three cardamom species. In the study, we compared the phytochemical profiles and biological activities of essential oils from Elettaria cardamomum, Aframomum corrorima and Amomum subulatum. The oils were analyzed using the GC and GC/MS techniques and were mainly constituted of the oxygenated monoterpenes which represents 71.4%, 63.0%, and 51.0% of all compounds detected in E. cardamomum, A. corrorima and A. subulatum essential oils, respectively, 1,8-cineole was the main common compound between the tree tested volatile oil. The essential oils showed significant antimicrobial activity against Gram-positive and Gram-negative microorganisms tested especially the fungal strains. The Ethiopian cardamom was the most active essential oil with fungal growth inhibition zone ranging from 12.67 to 34.33 mm, MICs values ranging from 0.048 to 0.19 mg/mL, and MBCs values from 0.19 to 1.75 mg/mL. The three tested essential oils and their main component (1,8-cineole) significantly increased the production of elastase and protease production, and motility in P. aeruginosa PAO1 in a dose dependent manner. In fact, at 10 mg/mL concentration, the three essential oils showed more than 50% of inhibition of elastolytic and proteolytic activities in P. aeruginosa PAO1. The same oils inhibited also the violacein production in C. violaceum strain. It was also noticed that at high concentrations, the A. corrorima essential oil significantly inhibited the germination of radish. A thorough knowledge of the biological and safety profiles of essential oils can produce applications of economic importance.
Collapse
Affiliation(s)
- Emira Noumi
- Laboratory of Bioressources: Integrative Biology & Recovery, High Institute of Biotechnology, University of Monastir, Monastir 5000, Tunisia.
- Department of Biology, College of Science, University of Ha'il, Hai'l 2440, Saudi Arabia.
| | - Mejdi Snoussi
- Department of Biology, College of Science, University of Ha'il, Hai'l 2440, Saudi Arabia.
- Laboratory of Genetics, Biodiversity and Valorisation of Bioresources, High Institute of Biotechnology, University of Monastir 5000, Tunisia.
| | - Mousa M Alreshidi
- Department of Biology, College of Science, University of Ha'il, Hai'l 2440, Saudi Arabia.
| | | | - Kanekar Saptami
- Yenepoya Research Centre, Yenepoya University, Mangalore 575018, India.
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano (Salerno), Italy.
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano (Salerno), Italy.
| | - Lucéia Fatima Souza
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano (Salerno), Italy.
| | - Kamel Msaada
- Laboratory of Medicinal and Aromatic Plants, Biotechnology Center in Borj-Cedria Technopole, BP. 901, Hammam-Lif 2050, Tunisia.
| | - Emilia Mancini
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano (Salerno), Italy.
| | - Guido Flamini
- Department of Pharmacy, University of Pisa, via Bonanno, 6, 56126 Pisa, Italy.
| | - Abdulbasit Al-Sieni
- Department of Biochemistry, Faculty of Science, King Abdul Aziz University, Jeddah 21589, Saudi Arabia.
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano (Salerno), Italy.
| |
Collapse
|
30
|
Gupta P, Gupta S, Sharma M, Kumar N, Pruthi V, Poluri KM. Effectiveness of Phytoactive Molecules on Transcriptional Expression, Biofilm Matrix, and Cell Wall Components of Candida glabrata and Its Clinical Isolates. ACS OMEGA 2018; 3:12201-12214. [PMID: 31459295 PMCID: PMC6645245 DOI: 10.1021/acsomega.8b01856] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 09/14/2018] [Indexed: 05/20/2023]
Abstract
Toxicity challenges by antifungal arsenals and emergence of multidrug resistance scenario has posed a serious threat to global community. To cope up with this alarming situation, phytoactive molecules are richest, safest, and most effective source of broad spectrum antimicrobial compounds. In the present investigation, six phytoactive molecules [cinnamaldehyde (CIN), epigallocatechin, vanillin, eugenol (EUG), furanone, and epigallocatechin gallate] were studied against Candida glabrata and its clinical isolates. Among these, CIN and EUG which are active components of cinnamon and clove essential oils, respectively, exhibited maximum inhibition against planktonic growth of C. glabrata at a concentration of 64 and 128 μg mL-1, respectively. These two molecules effectively inhibited and eradicated approximately 80% biofilm of C. glabrata and its clinical isolates from biomaterials. CIN and EUG increased reactive oxygen species generation, cell lysis, and ergosterol content in plasma membrane and reduced virulence attributes (phospholipase and proteinase) as well as catalase activity of C. glabrata cells. Reduction of mitochondrial membrane potential with increased release of cytochrome c from mitochondria to cytosol indicated initiation of early apoptosis in CIN- and EUG-treated C. glabrata cells. Transcriptional analysis showed that multidrug transporter (CDR1) and ergosterol biosynthesis genes were downregulated in the presence of CIN, while getting upregulated in EUG-treated cells. Interestingly, genes such as 1,3-β-glucan synthase (FKS1), GPI-anchored protein (KRE1), and sterol importer (AUS1) were downregulated upon treatment of CIN/EUG. These results provided molecular-level insights about the antifungal mechanism of CIN and EUG against C. glabrata including its resistant clinical isolate. The current data established that CIN and EUG can be potentially formulated in new antifungal strategies.
Collapse
Affiliation(s)
- Payal Gupta
- Department
of Biotechnology, Indian Institute of Technology
Roorkee, Roorkee 247667, Uttarakhand, India
| | - Sonam Gupta
- Department
of Biotechnology, Indian Institute of Technology
Roorkee, Roorkee 247667, Uttarakhand, India
| | - Meenakshi Sharma
- Department
of Biotechnology, Indian Institute of Technology
Roorkee, Roorkee 247667, Uttarakhand, India
| | - Navin Kumar
- Department
of Biotechnology, Graphic Era Deemed to
be University, Dehradun 248002, Uttarakhand, India
| | - Vikas Pruthi
- Department
of Biotechnology, Indian Institute of Technology
Roorkee, Roorkee 247667, Uttarakhand, India
| | - Krishna Mohan Poluri
- Department
of Biotechnology, Indian Institute of Technology
Roorkee, Roorkee 247667, Uttarakhand, India
| |
Collapse
|
31
|
Current Screening Methodologies in Drug Discovery for Selected Human Diseases. Mar Drugs 2018; 16:md16080279. [PMID: 30110923 PMCID: PMC6117650 DOI: 10.3390/md16080279] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 08/11/2018] [Indexed: 01/31/2023] Open
Abstract
The increase of many deadly diseases like infections by multidrug-resistant bacteria implies re-inventing the wheel on drug discovery. A better comprehension of the metabolisms and regulation of diseases, the increase in knowledge based on the study of disease-born microorganisms’ genomes, the development of more representative disease models and improvement of techniques, technologies, and computation applied to biology are advances that will foster drug discovery in upcoming years. In this paper, several aspects of current methodologies for drug discovery of antibacterial and antifungals, anti-tropical diseases, antibiofilm and antiquorum sensing, anticancer and neuroprotectors are considered. For drug discovery, two different complementary approaches can be applied: classical pharmacology, also known as phenotypic drug discovery, which is the historical basis of drug discovery, and reverse pharmacology, also designated target-based drug discovery. Screening methods based on phenotypic drug discovery have been used to discover new natural products mainly from terrestrial origin. Examples of the discovery of marine natural products are provided. A section on future trends provides a comprehensive overview on recent advances that will foster the pharmaceutical industry.
Collapse
|
32
|
Pattnaik SS, Ranganathan S, Ampasala DR, Syed A, Ameen F, Busi S. Attenuation of quorum sensing regulated virulence and biofilm development in Pseudomonas aeruginosa PAO1 by Diaporthe phaseolorum SSP12. Microb Pathog 2018; 118:177-189. [PMID: 29571725 DOI: 10.1016/j.micpath.2018.03.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/16/2018] [Accepted: 03/19/2018] [Indexed: 10/17/2022]
Abstract
In recent years, Pseudomonas aeruginosa PAO1 emerged as the significant pathogenic microorganism in majority of the hospital-acquired infections due to its resistance to the conventional antibiotics by virtue of its highly organized quorum sensing and associated biofilm formation. In the present study, quorum sensing attenuation potential of Diaporthe phaseolorum SSP12 extract was investigated against P. aeruginosa PAO1 amply supported by molecular docking studies. D. phaseolorum SSP12 extract significantly inhibited the production of LasI/R mediated LasA protease, LasB elastase and chitinase with 66.52 ± 5.41, 71.26 ± 4.58 and 61.16 ± 4.28% of inhibition respectively at a concentration of 750 μg mL-1. In addition, RhlI/R mediated production of pyocyanin, exopolysaccharides and rhamnolipids were also down-regulated by 74.71 ± 3.97, 66.41 ± 3.62 and 63.75 ± 3.76% respectively on treatment with sub-MIC concentration of D. phaseolorum SSP12. The light, fluorescence and confocal laser scanning microscopic (CLSM) analysis confirmed the significant disruption in biofilm formation. The presence of bioactive constituents such as phenyl ethylalcohol, 2, 4-di-tert-butylphenol, fenaclon, 1, 4-phenylenediacetic acid, and benzyl hydrazine in D. phaseolorum SSP12 extract was evident from Gas chromatography-mass spectrophotometric (GC-MS) analysis. From the in silico molecular docking studies, fenaclon and 2, 4-di-tert-butylphenol competitively binds to QS receptors LasR and RhlR and alters the binding of its cognate ligands and modulates the expression of virulence phenotypes. The promising anti quorum sensing efficacy of D. phaseolorum SSP12 extract suggested new avenues for development of anti-infective drugs from fungal derived metabolites to counteract the problems associated with conventional antibiotic therapies.
Collapse
Affiliation(s)
- Subha Swaraj Pattnaik
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry 605 014, India
| | - SampathKumar Ranganathan
- Centre for Bioinformatics, School of Life Sciences, Pondicherry University, Puducherry 605 014, India
| | - Dinakara Rao Ampasala
- Centre for Bioinformatics, School of Life Sciences, Pondicherry University, Puducherry 605 014, India
| | - Asad Syed
- Botany and Microbiology Department, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Fuad Ameen
- Botany and Microbiology Department, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Siddhardha Busi
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry 605 014, India.
| |
Collapse
|
33
|
Jaradat NA, Al-Masri M, Zaid AN, Hussein F, Al-Rimawi F, Mokh AA, Mokh JA, Ghonaim S. Phytochemical, antimicrobial and antioxidant preliminary screening of a traditional Palestinian medicinal plant, Ononis pubescens L. Eur J Integr Med 2017. [DOI: 10.1016/j.eujim.2017.08.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
34
|
Strategies for Biofilm Inhibition and Virulence Attenuation of Foodborne Pathogen-Escherichia coli O157:H7. Curr Microbiol 2017; 74:1477-1489. [DOI: 10.1007/s00284-017-1314-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 07/19/2017] [Indexed: 10/19/2022]
|
35
|
Abdissa D, Geleta G, Bacha K, Abdissa N. Phytochemical investigation of Aloe pulcherrima roots and evaluation for its antibacterial and antiplasmodial activities. PLoS One 2017; 12:e0173882. [PMID: 28333961 PMCID: PMC5363824 DOI: 10.1371/journal.pone.0173882] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 02/28/2017] [Indexed: 11/19/2022] Open
Abstract
Medicinal plants with documented traditional uses remain an important source for the treatment of a wide range of ailments. Evidence shows that majority of the Ethiopian population are still dependent on traditional medicine. Aloe pulcherrima Gilbert & Sebsebe is one of the endemic Aloe species traditionally used for the treatment of malaria and wound healing in central, Southern and Northern part of Ethiopia. The aim of the current study was, therefore, to isolate active compounds from roots of A. pulcherrima and evaluate for their antibacterial and antiplasmodial activities using standard test strains. Bioassay-guided sequential extraction and column chrom-atographic separation were employed for the isolation of bioactive pure compounds. The structures of the compounds were determined by 1D and 2D NMR spectro-scopic techniques. Disk diffusion method was employed to evaluate the antibacterial activities of the isolated compounds against four bacterial strains specifically (Staphylococcus aureus ATCC 25923, Bacillus subtilis ATCC 6633, Escherichia coli ATCC 35218, Pseudomonas aeruginosa ATCC 27853). The malaria SYBR Green I-based in vitro assay technique was used for in vitro antiplasmodial activity evaluation of the compounds against chloroquine resistant (D6) and -sensitive (W2) strains of P. falciparum. Three compounds, chrysophanol, aloesaponarin I and aloesaponarin II were isolated from the acetone extracts of roots of A. pulcherrima. Evaluation of antibacterial activities revealed that aloesaponarin I and aloesaponarin II had significant activities against all the bacterial strains with inhibition zone diameters ranging from 18-27 mm as compared to the reference drug (gentamicin), which displayed inhibition zone diameter ranging between 20 mm (B. subtilis) and 25 mm (P. aeruginosa). The isolated compounds showed moderate in vitro antiplasmodial activity against both chloroquine resistant (W2) -sensitive (D6) strains. Isolation of chrysophanol, aloesaponarin I and aloesaponarin II from roots of A. pulcherrima is the first report of its kind. The finding could be used for further comprehensive evaluation of the isolated compounds for their antibacterial and antimalarial activities besides consideration of the same for potent drug development.
Collapse
Affiliation(s)
- Dele Abdissa
- Department of Chemistry, College of Natural Sciences, Jimma University, Jimma, Ethiopia
| | - Girma Geleta
- Department of Biology, College of Natural Sciences, Jimma University, Jimma, Ethiopia
| | - Ketema Bacha
- Department of Biology, College of Natural Sciences, Jimma University, Jimma, Ethiopia
- * E-mail:
| | - Negera Abdissa
- Department of Chemistry, College of Natural Sciences, Jimma University, Jimma, Ethiopia
| |
Collapse
|
36
|
Bakal SN, Bereswill S, Heimesaat MM. Finding Novel Antibiotic Substances from Medicinal Plants - Antimicrobial Properties of Nigella Sativa Directed against Multidrug-resistant Bacteria. Eur J Microbiol Immunol (Bp) 2017; 7:92-98. [PMID: 28386474 PMCID: PMC5372484 DOI: 10.1556/1886.2017.00001] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 02/05/2017] [Indexed: 12/12/2022] Open
Abstract
The progressive rise in multidrug-resistant (MDR) bacterial strains poses serious problems in the treatment of infectious diseases. While the number of newly developed antimicrobial compounds has greatly fallen, the resistance of pathogens against commonly prescribed drugs is further increasing. This rise in resistance illustrates the need for developing novel therapeutic and preventive antimicrobial options. The medicinal herb Nigella sativa and its derivatives constitute promising candidates. In a comprehensive literature survey (using the PubMed data base), we searched for publications on the antimicrobial effects of N. sativa particularly directed against MDR bacterial strains. In vitro studies published between 2000 and 2015 revealed that N. sativa exerted potent antibacterial effects against both Gram-positive and Gram-negative species including resistant strains. For instance, N. sativa inhibited the growth of bacteria causing significant gastrointestinal morbidity such as Salmonella, Helicobacter pylori, and Escherichia coli. However, Listeria monocytogenes and Pseudomonas aeruginosa displayed resistance against black cumin seed extracts. In conclusion, our literature survey revealed potent antimicrobial properties of N. sativa against MDR strains in vitro that should be further investigated in order to develop novel therapeutic perspectives for combating infectious diseases particularly caused by MDR strains.
Collapse
Affiliation(s)
- Seher Nancy Bakal
- Department of Microbiology and Hygiene, Charité - University Medicine Berlin , Berlin, Germany
| | - Stefan Bereswill
- Department of Microbiology and Hygiene, Charité - University Medicine Berlin , Berlin, Germany
| | - Markus M Heimesaat
- Department of Microbiology and Hygiene, Charité - University Medicine Berlin , Berlin, Germany
| |
Collapse
|
37
|
Rekha P, Vasavi H, Vipin C, Saptami K, Arun A. A medicinal herbCassia alataattenuates quorum sensing inChromobacterium violaceumandPseudomonas aeruginosa. Lett Appl Microbiol 2017; 64:231-238. [DOI: 10.1111/lam.12710] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/30/2016] [Accepted: 12/13/2016] [Indexed: 12/22/2022]
Affiliation(s)
- P.D. Rekha
- Yenepoya Research Centre; Yenepoya University; Deralakatte Mangalore India
| | - H.S. Vasavi
- Yenepoya Research Centre; Yenepoya University; Deralakatte Mangalore India
| | - C. Vipin
- Yenepoya Research Centre; Yenepoya University; Deralakatte Mangalore India
| | - K. Saptami
- Yenepoya Research Centre; Yenepoya University; Deralakatte Mangalore India
| | - A.B. Arun
- Yenepoya Research Centre; Yenepoya University; Deralakatte Mangalore India
| |
Collapse
|
38
|
Jaradat NA, Zaid AN, Abuzant A, Khalaf S, Abu-Hassan N. Phytochemical and biological properties of four Astragalus species commonly used in traditional Palestinian medicine. Eur J Integr Med 2017. [DOI: 10.1016/j.eujim.2017.01.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|