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Camacho KF, de Melo Carlos L, Bernal SPF, de Oliveira VM, Ruiz JLM, Ottoni JR, Vieira R, Neto A, Rosa LH, Passarini MRZ. Antarctic marine sediment as a source of filamentous fungi-derived antimicrobial and antitumor compounds of pharmaceutical interest. Extremophiles 2024; 28:21. [PMID: 38532228 DOI: 10.1007/s00792-024-01339-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 03/07/2024] [Indexed: 03/28/2024]
Abstract
Antarctica harbors a microbial diversity still poorly explored and of inestimable biotechnological value. Cold-adapted microorganisms can produce a diverse range of metabolites stable at low temperatures, making these compounds industrially interesting for biotechnological use. The present work investigated the biotechnological potential for antimicrobial and antitumor activity of filamentous fungi and bacteria isolated from marine sediment samples collected at Deception Island, Antarctica. A total of 89 microbial isolates were recovered from marine sediments and submitted to an initial screening for L-glutaminase with antitumoral activity and for antimicrobial metabolites. The isolates Pseudogymnoascus sp. FDG01, Pseudogymnoascus sp. FDG02, and Penicillium sp. FAD33 showed potential antiproliferative action against human pancreatic carcinoma cells while showing no toxic effect on non-tumor cells. The microbial extracts from unidentified three bacteria and four filamentous fungi showed antibacterial activity against at least one tested pathogenic bacterial strain. The isolate FDG01 inhibited four bacterial species, while the isolate FDG01 was active against Micrococcus luteus in the minimal inhibitory concentration of 0.015625 μg mL -1. The results pave the way for further optimization of enzyme production and characterization of enzymes and metabolites found and reaffirm Antarctic marine environments as a wealthy source of compounds potentially applicable in the healthcare and pharmaceutical industry.
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Affiliation(s)
- Karine Fernandes Camacho
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | - Layssa de Melo Carlos
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | - Suzan Prado Fernandes Bernal
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | | | - Jorge Luiz Maria Ruiz
- Laboratório de Biotecnologia da Saúde, Universidade Federal da Integração Latino-Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | - Júlia Ronzella Ottoni
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | - Rosemary Vieira
- Instituto de Geociências, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Arthur Neto
- Instituto de Geociências, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Luiz Henrique Rosa
- Departamento de Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Michel Rodrigo Zambrano Passarini
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil.
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Patel M, Kikani T, Saren U, Thakore S. Bactericidal, anti-biofilm, anti-oxidant potency and catalytic property of silver nanoparticles embedded into functionalised chitosan gel. Int J Biol Macromol 2024; 262:129968. [PMID: 38320641 DOI: 10.1016/j.ijbiomac.2024.129968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/20/2024] [Accepted: 02/02/2024] [Indexed: 02/08/2024]
Abstract
Chitosan is a versatile biocompatible polysaccharide which has attracted great attention for gel synthesis. Its reducing character is specifically exploited for nanoparticle synthesis via green approach. A silver nanocomposite synthesized using this gel, with a novel gelling agent 2,4,6-trihydroxy benzaldehyde, was found to be a promising candidate for several applications including anti-bacterial, anti-biofilm and anti-oxidant activity as well as catalysis. The nanocomposite was well characterized using various spectroscopic and microscopic techniques such as IR, TGA, XRD, XPS, SEM and TEM. The nanocomposite exhibited high bactericidal activity against both S. aureus and E. coli. Further, it was evaluated for anti-biofilm forming property and its potency as antioxidant agent. The nanocomposite served as a catalyst for degradation of Methyl Orange and Rhodamine B at high concentrations (in the range of mM) with a catalytic efficiency of 98.58 % and 99.56 % within 3 min and 5 min respectively.
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Affiliation(s)
- Miraj Patel
- Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, India
| | - Twara Kikani
- Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, India
| | - Ukil Saren
- Department of Microbiology and Biotechnology Centre, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, India
| | - Sonal Thakore
- Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, India.
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3
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Asefian S, Ghavam M. Green and environmentally friendly synthesis of silver nanoparticles with antibacterial properties from some medicinal plants. BMC Biotechnol 2024; 24:5. [PMID: 38263231 PMCID: PMC10807138 DOI: 10.1186/s12896-023-00828-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 12/19/2023] [Indexed: 01/25/2024] Open
Abstract
Recently there have been a variety of methods to synthesize silver nanoparticles, among which the biosynthesis method is more noticeable due to features like being eco-friendly, simple, and cost-efficient. The present study aims for the green synthesis of silver nanoparticles from the extract of the three plants A. wilhelmsi, M. chamomilla, and C. longa; moreover, it pledges to measure the antibacterial activity against some variants causing a skin rash. The morphology and size of the synthesized silver nanoparticles were evaluated by UV.vis, XRD, SEM, and FTIR analyses. Then results showed a color alteration from light yellow to dark brown and the formation of silver nanoparticles. The absorption peak with the wavelength of approximately 450 nm resulting from the Spectrophotometry analysis confirmed the synthesis of silver nanoparticles. The presence of strong and wide peaks in FTIR indicated the presence of OH groups. The SEM results showed that most synthesized nanoparticles had a spherical angular structure and their size was about 10 to 20 nm. The highest inhibition power was demonstrated by silver nanoparticles synthesized from the extract combined from all three species against Gram-positive bacteria Staphylococcus aureus and Staphylococcus epidermidis (23 mm) which had a performance far more powerful than the extract. Thus, it can be understood that the nanoparticles synthesized from these three species can act as potential environment-friendly alternatives to inhibit some variations causing skin disorders; an issue that calls for further clinical studies.
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Affiliation(s)
- Samira Asefian
- Department of Nature Engineering, Faculty of Natural Resources and Earth Sciences, University of Kashan, Kashan, Iran
| | - Mansureh Ghavam
- Department of Nature Engineering, Faculty of Natural Resources and Earth Sciences, University of Kashan, Kashan, Iran.
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Li X, Wei J, Lin L, Li J, Zheng G. Structural characterization, antioxidant and antimicrobial activities of polysaccharide from Akebia trifoliata (Thunb.) Koidz stem. Colloids Surf B Biointerfaces 2023; 231:113573. [PMID: 37783040 DOI: 10.1016/j.colsurfb.2023.113573] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 06/14/2023] [Accepted: 09/28/2023] [Indexed: 10/04/2023]
Abstract
Polysaccharides have a variety of beneficial pharmacological impact on human health. Akebia trifoliata (Thunb.) Koidz. has promising development prospects as a food resource with medicinal value. The aim of this study was to investigate the structural characterization, antioxidant, and antibacterial properties of A. trifoliata (Thunb.) Koidz polysaccharides (ATKPs). ATKP-II was purified from ATKP by DEAE-cellulose column with NaCl solution as eluent. ATKP and ATKP-II structures were characterized by high performance gel permeation chromatography, gas chromatography, ultraviolet-visible, Fourier transform infrared spectroscopy, thermogravimetry analysis and scanning electron microscopy. ATKP and ATKP-II were primarily composed of rhamnose, arabinose, xylose, mannose, glucose, and galactose in a molar percent of 1.6: 22.1: 3.6: 6.3: 55.7: 10.7, and 0.5: 22.1: 3.7: 10.2: 42.1: 21.4, respectively. Their structure may contain β-D-glucopyranose. The thermogravimetry analysis showed that ATKP and ATKP-II have good thermal stability at 230 °C and 200 °C, respectively. ATKP had the best antioxidant activities for 2, 2-diphenyl-1-picrylhydrazyl, hydroxyl, and superoxide free radical scavenging activities in vitro, and reducing ability than that of the purified polysaccharides. Moreover, ATKP was demonstrated an appreciable in vitro antibacterial activity, against Staphylococcus aureus, Bacillus subtilis, Salmonella, Penicillium italicum, Rhizopus and Aspergillus niger, but showed no activity against Escherichia coli and Saccharomycetes. These results demonstrated that ATKP displayed excellent antioxidant and antibacterial activities. This study provides a basis for the development and utilization in ATKP.
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Affiliation(s)
- Xin Li
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jing Wei
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Lezhen Lin
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jingen Li
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
| | - Guodong Zheng
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
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Waqas M, Shahzadi A, Haider A, Hamid AU, Algaradah MM, Abd-Rabboh HSM, Ikram M. Chitosan grafted polyacrylic acid doped MnO 2 nanocomposite an efficient dye degrader and antimicrobial agent. Int J Biol Macromol 2023; 251:126343. [PMID: 37586627 DOI: 10.1016/j.ijbiomac.2023.126343] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/31/2023] [Accepted: 08/13/2023] [Indexed: 08/18/2023]
Abstract
Manganese dioxide (MnO2) nanorods and (3, 6, and 9 mL) chitosan grafted polyacrylic acid (CS-g-PAA) doped MnO2 were prepared hydrothermally. The study objective is to decrease the recombination rate of MnO2 upon doping to enhance the dye degradation efficiency and antimicrobial activity. The doping-dependent properties of CS-g-PAA on phase identification, functional groups, optical characteristics, elemental compositions, and morphological analyses of MnO2 nanorods were conducted using systematic characterization techniques. XRD pattern shows that MnO2 has a tetragonal structure, with increased crystallite size (15.87 to 29.36 nm) upon doping. The TEM analysis showed that MnO2 has nanorods and that CS-g-PAA doped MnO2 displayed nanoflakes-like structures. The decrease in electron-hole pair recombination rate on doping was verified by PL spectroscopy, demonstrating the enhanced catalytic activity. Moreover, adding grafted binary polymers to MnO2 inhibits bacterial cell growth by binding with the negatively charged cell wall and preventing biofilm formation. The 9 mL doped sample displayed a maximum degradation (99.27 %) in a neutral medium and 85.84 % antimicrobial efficiency against E. coli. The enoyl-acyl carrier protein reductase (FabIE. coli) and DNA gyrase(E. coli) were inhibited by these CS-g-PAA doped MnO2 nanostructures (NSs), as shown by in silico molecular docking studies.
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Affiliation(s)
- Muhammad Waqas
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore 54000, Punjab, Pakistan
| | - Anum Shahzadi
- Faculty of Pharmacy, The University of Lahore, Lahore 54000, Pakistan
| | - Ali Haider
- Department of Clinical Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef, University of Agriculture, 66000 Multan, Punjab, Pakistan
| | - Anwar Ul Hamid
- Core Research Facilities, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | | | - Hisham S M Abd-Rabboh
- Chemistry Department, Faculty of Science, King Khalid University, P.O.Box 9004, Abha 61413, Saudi Arabia
| | - Muhammad Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore 54000, Punjab, Pakistan.
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Mohamed-Ezzat RA, Hashem AH, Dacrory S. Synthetic strategy towards novel composite based on substituted pyrido[2,1-b][1,3,4]oxadiazine-dialdehyde chitosan conjugate with antimicrobial and anticancer activities. BMC Chem 2023; 17:88. [PMID: 37496066 PMCID: PMC10373407 DOI: 10.1186/s13065-023-01005-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 07/14/2023] [Indexed: 07/28/2023] Open
Abstract
Synthesis of new compounds that have biological activity is an indispensible issue in order to deal with the drug resistant bacteria. This wok reports preparation of a novel composite based on substituted pyrido[2,1-b][1,3,4] oxadiazine-dialdehyde chitosan (PODACs) conjugate. Firstly, a novel approach of synthesizing of a new substituted pyrido[2,1-b][1,3,4]oxadiazine-7-carboxylic acid (PO) is reported through reacting(Z)-N'-(1-(3-aminophenyl)ethylidene)-2-cyanoacetohydrazide with (Z)-ethyl 2-cyano-3-(pyridin-3-yl)acrylate. Then Dialdehyde chitosan (DACs) has prepared via periodat oxidation of chitosan (Cs). The synthesized compounds have studied via various spectroscopic instruments to validate their chemical structure such as nuclear magnetic resonance 1 H NMR, 13 C NMR, fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), and scanning electron microscopy (SEM). The substituted pyrido [2,1-b][1,3,4]oxadiazine and the composite were evaluated for antimicrobial activity against pathogenic bacteria and unicellular fungi. The results revealed that, the composite exhibited promising antimicrobial activity against E. coli, S. aureus, B. subtilis and C. albicans where inhibition zones were 19, 18, 36 and 20 mm respectively. Furthermore, the substituted pyrido [2,1-b][1,3,4]oxadiazine and the composite were evaluated for cytotoxic activity against MCF-7 human breast cancer cell line as well as vero normal cell line. Results illustrated the prepared composite has anticancer activity against MCF7 where IC50 was 238 µg/ml.
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Affiliation(s)
- Reham A Mohamed-Ezzat
- Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Cairo, Egypt
| | - Amr H Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt.
| | - Sawsan Dacrory
- Cellulose and Paper Department, National Research Centre, 33 El Bohouth St, Giza, 12622, Egypt.
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Abduh MY, Ramdhani F, Setiawan A, Rifqialdi G, Rahmawati A, Zainudin IM. Determination of productivity, yield and bioactivity of propolis extract produced by Tetragonula spp. Cultivated in Modular tetragonula hives. Heliyon 2023; 9:e17304. [PMID: 37441379 PMCID: PMC10333466 DOI: 10.1016/j.heliyon.2023.e17304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/01/2023] [Accepted: 06/13/2023] [Indexed: 07/15/2023] Open
Abstract
This study investigated the effects of microclimate conditions on the activity of Tetragonula laeviceps, Tetragonula biroi, and Tetragonula drescheri cultivated in Modular Tetragonula Hives for producing crude propolis. The hives were equipped with sensors that recorded microclimate data within the hive as well as the total activity of bees entering and leaving the hives. This study also investigated the effects of cultivating T. laeviceps, T. drescheri, and T. biroi with P. merkusii resin towards the productivity of crude propolis and the effects of different extraction methods on the yield, total phenolic content, total flavonoid content, and antibacterial activity of propolis extract produced by the Tetragonula spp. Based on the statistical analysis, there is a significant positive correlation between temperature and light intensity towards the activity Tetragonula spp. entering and leaving the beehives. The productivity of crude propolis lies in the range of 1.22-5.88 g/colony/week whereas the yield of propolis extract varies from 15.12 to 24.17%. The total phenolic and flavonoid content of the propolis extract lies in the range of 123.81-343.93 mg GAE/g and 5.48-35.77 mg QE/g, respectively. The highest propolis yield (32.45 ± 0.90%) was obtained from the crude propolis produced by T. drescheri followed by Soxhlet extraction method. Propolis extract with the highest phenolic content (343.93 ± 44.32 mg GAE/g) and flavonoid content (35.77 ± 9.94 mg QE/g) was obtained from the propolis produced by T. laeviceps followed by maceration method. All the propolis extracts inhibited the growth of Staphylococcus aureus with the inhibition diameter varies from 6.58 ± 0.04 mm to 9.70 ± 0.7 mm which be considered as moderate antimicrobial activity.
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Affiliation(s)
- Muhammad Yusuf Abduh
- School of Life Sciences and Technology, Institut Teknologi Bandung, Jalan Ganesha 10, 40132 Bandung, Indonesia
- University Center of Excellence for Nutraceuticals, Bioscience and Biotechnology Research Center, Institut Teknologi Bandung, Jalan Ganesha 10, 40132 Bandung, Indonesia
| | - Fahmi Ramdhani
- School of Life Sciences and Technology, Institut Teknologi Bandung, Jalan Ganesha 10, 40132 Bandung, Indonesia
| | - Albert Setiawan
- School of Life Sciences and Technology, Institut Teknologi Bandung, Jalan Ganesha 10, 40132 Bandung, Indonesia
| | - Ghiffary Rifqialdi
- School of Life Sciences and Technology, Institut Teknologi Bandung, Jalan Ganesha 10, 40132 Bandung, Indonesia
| | - Anasya Rahmawati
- School of Life Sciences and Technology, Institut Teknologi Bandung, Jalan Ganesha 10, 40132 Bandung, Indonesia
| | - Ima Mulyama Zainudin
- School of Life Sciences and Technology, Institut Teknologi Bandung, Jalan Ganesha 10, 40132 Bandung, Indonesia
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Linima VK, Ragunathan R, Johney J. Biogenic synthesis of RICINUS COMMUNIS mediated iron and silver nanoparticles and its antibacterial and antifungal activity. Heliyon 2023; 9:e15743. [PMID: 37305504 PMCID: PMC10256862 DOI: 10.1016/j.heliyon.2023.e15743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 06/13/2023] Open
Abstract
In recent years, many strategies have been developed for the biological synthesis of different types of metal nanoparticles, which have been successfully synthesized from various plant extracts and analyzed. Recent studies have demonstrated that nanoparticles have highly promising antimicrobial, antiviral, and anti-cancer properties. In the present study, biological synthesis of Ricinuscommunis leaves was performed with iron and silver nanoparticles. The synthesized iron and silver nanoparticles were characterized by UV-Vis spectroscopy, Fourier transform infrared (FT-IR), X-Ray Diffraction (XRD), Scanning electron microscopy (SEM) with Energy dispersive spectroscopy (EDS), and Transmission electron microscopy (TEM). GC-MS analysis of the Ricinus communis revealed the secondary metabolites of total phenolic and flavonoid contents of the extract, which are responsible for the bio-reduction reaction during nanoparticle synthesis. The UV-Vis spectrum shows Plasmon peaks at 340 nm and 440 nm for iron and silver nanoparticles, respectively. XRD results revealed crystalline structure, while TEM, SEM, and EDS identified iron and silver with mostly cuboidal and spherical shapes. Antimicrobial activity was also performed, and it was found that both nanoparticles were active against Salmonella typhi (6 ± 0.073) and (7 ± 0.040), Staphylococcus aureus, and Aspergillus flavus. MIC was also performed, and AgNPs gave a better bactericidal effect against Staphylococcus aureus.
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Affiliation(s)
- V K Linima
- Department of Biotechnology (Bionanotechnology), Centre for Bioscience and Nanoscience Research, Eachanari, Coimbatore - 21 , Tamilnadu, India
| | - R Ragunathan
- Department of Biotechnology (Bionanotechnology), Centre for Bioscience and Nanoscience Research, Eachanari, Coimbatore - 21 , Tamilnadu, India
| | - Jesteena Johney
- Department of Biotechnology (Bionanotechnology), Centre for Bioscience and Nanoscience Research, Eachanari, Coimbatore - 21 , Tamilnadu, India
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Rao PJ, Khanum H, Murthy PS, Shreelakshmi SV, Nazareth MS. Influence of milk fat on the physicochemical property of nanoencapsulated curcumin and enhancement of its biological properties thereof. J Food Sci Technol 2023; 60:1376-1388. [PMID: 36936118 PMCID: PMC10020419 DOI: 10.1007/s13197-023-05684-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/05/2022] [Accepted: 01/29/2023] [Indexed: 02/15/2023]
Abstract
Curcumin, bioactive from turmeric Curcuma longa, has been known for its therapeutic properties. However, its lipophilic nature and poor bioavailability are the constraints to harnessing its properties. Encapsulation in nano-size helps to alleviate the constraints and enhance its biological properties due to its higher surface area. The study aims to encapsulate curcumin in a nanometer size range by solubilizing in lipid (milk fat) and using milk protein as a water-soluble carrier. The lipid:curcumin ratio (1:0.05, 1:0.1, 1:0.2, 1.5:0.1, 1.5:0.2, 2.0:0.1 and 2:0.2% (w/w)) produced nanoemulsion with droplets sizes 30-200 nm. The sample containing lipid: curcumin, as 1.0:0.05 resulted in an encapsulation efficiency of 92.6%, and its binding interaction with the carrier, was KD = 4.7 µM. A high solubility of curcumin in milk fat and digestion during in vitro lipolysis increased its bioaccessibility. A simulated gastro-intestinal in vitro studies showed that cumulative release percentage of nanoencapsulated curcumin was 60% at pH 7.4 compared to 0.8% of native curcumin. The anti-microbial property of nanoencapsulated curcumin was more potent than native curcumin against food pathogenic organisms such as S. aureus, B. cereus, E. coli, B. subtilis, P. aeruginosa, P. aeruginosa, C. violaceum. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-023-05684-5.
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Affiliation(s)
- Pooja J. Rao
- Plant Products, Spices and Flavour Sciences Department, Council of Scientific and Industrial Research–Central Food Technological Research Institute, Mysuru, 570020 India
| | - Hafeeza Khanum
- Plant Products, Spices and Flavour Sciences Department, Council of Scientific and Industrial Research–Central Food Technological Research Institute, Mysuru, 570020 India
| | - Pushpa S. Murthy
- Plant Products, Spices and Flavour Sciences Department, Council of Scientific and Industrial Research–Central Food Technological Research Institute, Mysuru, 570020 India
| | - S. V. Shreelakshmi
- Plant Cell Bio-Technology, Central Food Technological Research Institute, Mysuru, 570020 India
| | - Maria Sheeba Nazareth
- Plant Cell Bio-Technology, Central Food Technological Research Institute, Mysuru, 570020 India
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Tong J, Guan X, Jiang S, Sun L. A saposin domain-containing protein of tongue sole Cynoglossus semilaevis: Antimicrobial activity and mechanism. Dev Comp Immunol 2023; 141:104633. [PMID: 36610645 DOI: 10.1016/j.dci.2023.104633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 01/03/2023] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Prosaposin is a precursor that can be processed into four different saposins, designated as A, B, C, and D, which have multiple functions in mammals, including neuroprotection and immune modulation. The immune function of saposin in teleost remains largely unknown. In the present study, a saposin (SAP) domain-containing protein was identified in half-smooth tongue sole Cynoglossus semilaevis and named CsSDP. CsSDP harbors one SAP A domain and two SAP B domains. When expressed in HEK293T cells, CsSDP was specifically localized in the lysosome. When overexpressed in Escherichia coli, CsSDP markedly inhibited bacterial growth, and the inhibitory effect depended on two specific regions in the SAP A and SAP B domains. Two polypeptides (P32 and P30) derived from the above SAP A and B domains could bind to and inhibit the growth of both Gram-negative and Gram-positive bacteria. The ultrastructural analysis revealed that P32 and P30 killed target bacteria by disrupting the bacterial cell wall and inducing substantial release of cytoplasmic contents. These results shed new lights on the immune function of saposin domain-containing protein in teleost.
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Affiliation(s)
- Jiazhou Tong
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China; CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
| | - Xiaolu Guan
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China
| | - Shuai Jiang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China.
| | - Li Sun
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China.
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Mohan S, Ajay Krishna MS, Chandramouli M, Keri RS, Patil SA, Ningaiah S, Somappa SB. Antibacterial natural products from microbial and fungal sources: a decade of advances. Mol Divers 2023; 27:517-41. [PMID: 35301633 DOI: 10.1007/s11030-022-10417-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/22/2022] [Indexed: 02/08/2023]
Abstract
Throughout the ages the world has witnessed the outbreak of many infectious diseases. Emerging microbial diseases pose a serious threat to public health. Increasing resistance of microorganisms towards the existing drugs makes them ineffective. In fact, anti-microbial resistance is declared as one of the top public health threats by WHO. Hence, there is an urge for the discovery of novel antimicrobial drugs to combat with this challenge. Structural diversity and unique pharmacological effects make natural products a prime source of novel drugs. Staggeringly, in spite of its extensive biodiversity, a prominent portion of microorganism species remains unexplored for the identification of bioactives. Microorganisms are a predominant source of new chemical entities and there are remarkable number of antimicrobial drugs developed from it. In this review, we discuss the contributions of microorganism based natural products as effective antibacterial agents, studied during the period of 2010-2020. The review encompasses over 140 structures which are either natural products or semi-synthetic derivatives of microbial natural products. 65 of them are identified as newly discovered natural products. All the compounds discussed herein, have exhibited promising efficacy against various bacterial strains.
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Ragab A, Abusaif MS, Gohar NA, Aboul-Magd DS, Fayed EA, Ammar YA. Development of new spiro[1,3]dithiine-4,11'-indeno[1,2-b]quinoxaline derivatives as S. aureus Sortase A inhibitors and radiosterilization with molecular modeling simulation. Bioorg Chem 2023; 131:106307. [PMID: 36481380 DOI: 10.1016/j.bioorg.2022.106307] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 10/14/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022]
Abstract
Multi-drug resistant microbes have become a severe threat to human health and arise a worldwide concern. A total of fifteen spiro-1,3-dithiinoindenoquinoxaline derivatives 2-7 were synthesized and evaluated for their biological activities against five standard and MDRB pathogens. The MIC and MBC/MFC for the most active derivatives were determined in vitro via broth microdilution assay. These derivatives showed significant activity against the tested strains with microbicidal behavior, with compound 4b as the most active compound (MIC range between 0.06 and 0.25 µg/mL for bacteria strains and MIC = 0.25 µg/mL for C. albicans). The most active spiro-1,3-dithiinoindenoquinoxaline derivatives were able to inhibit the activity of SrtA with IC50 values ranging from 22.15 ± 0.4 µM to 37.12 ± 1.4 µM. In addition, the active spiro-1,3-dithiinoindenoquinoxaline attenuated the in vitro virulence-related phenotype of SrtA by weakening the adherence of S. aureus to fibrinogen and reducing the biofilm formation. Surprisingly, compound 4b revealed potent SrtA inhibitory activity with IC50 = 22.15 µM, inhibiting the adhesion of S. aureus with 39.22 ± 0.15 % compared with untreated 9.43 ± 1.52 %, and showed a reduction in the biofilm biomass of S. aureus with 32.27 ± 0.52 %. We further investigated the effect of gamma radiation as a sterilization method on the microbial load and found that a dose of 5 kGy was sufficient to eradicate the microbial load. The quantum chemical studies exhibited that the tested derivatives have a small energy band gap (ΔE = -2.95 to -3.61 eV) and therefore exert potent bioactivity by interacting with receptors more stabilizing.
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Chau TP, Muthusamy M, Chinnathambi A, Alahmadi TA, Kuppusamy S. Optimization of extraction and quantification of Flavonoids from Averrhoa bilimbi fruits using RP-HPLC and its correlation between total flavonoids content against antimicrobial activity. Appl Nanosci 2023; 13:1293-1300. [PMID: 34422535 PMCID: PMC8369870 DOI: 10.1007/s13204-021-02020-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 08/08/2021] [Indexed: 11/29/2022]
Abstract
The present study was conducted to evaluate Averrhoa bilimbi fruits flavonoids extraction and quantification analysis through RP-HPLC and its comparison study on total flavonoids concentration versus antimicrobial activity analysis based on minimum inhibitory concentrations. Optimization of extraction was carried out using three different methods; among all methods the ultrasonic conventional assistant extraction (UCAE) showed an excellent recovery of flavonoids with solid phase elution. UCAE was performed with ethanol using different solvents ratio, the total flavonoid content was quantified through spectrophotometrically (850 ± 25 mg/kg) and flavonoids (myricetin and luteolin) were quantified by RP-HPLC. Optimized yield of myricetin and luteolin were presented in A. bilimbi fruits 336 ± 15 and 231 ± 18 mg/kg, respectively. Antimicrobial activity examined against E. coli, S. aureus and B. subtilis species using spectroscopically. The extracted sample with known quantity of total flavonoids content (10-200 µg/mL) used against E. coli, S. aureus and B. subtilis, MIC results shows 55.6 ± 6, 31 ± 3 and 28 ± 2 µg/mL respectively. Higher flavonoid content plays major role on antioxidant activities, which were evaluated and compared with commercial antioxidant butylated hydroxytoluene (BHT) employing superoxide anion scavenging activity and total reducing power IC50 value results shows 100 and 175 µg/mL, respectively. The maximum yield of flavonoid content results shows method suitability of flavonoids extraction and quantification.
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Affiliation(s)
- Tan Phat Chau
- Institute of Applied Science and Technology, Van Lang University, Ho Chi Minh, 700000 Vietnam
| | - Muthusamy Muthusamy
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences (NAS), RDA, Jeonju, 54874 Korea
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box-2455, Riyadh, 11451 Saudi Arabia
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh, 11461 Saudi Arabia
| | - Sowmya Kuppusamy
- PG Department of Environmental Science, Holy Cross College, Tiruchirappalli, Tamil Nadu India
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Bhattacharjee R, Nandi A, Sinha A, Kumar H, Mitra D, Mojumdar A, Patel P, Jha E, Mishra S, Rout PK, Panda PK, Suar M, Verma SK. Phage-tail-like bacteriocins as a biomedical platform to counter anti-microbial resistant pathogens. Biomed Pharmacother 2022; 155:113720. [PMID: 36162371 DOI: 10.1016/j.biopha.2022.113720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/15/2022] [Accepted: 09/19/2022] [Indexed: 11/25/2022] Open
Abstract
Phage Tail Like bacteriocins (PTLBs) has been an area of interest in the last couple of years owing to their varied application against multi-drug resistant (MDR), anti-microbial resistant (AMR) pathogens and their evolutionary link with the dsDNA virus and bacteriophages. PTLBs are defective phages derived from Myoviridae and Siphoviridae phages, PTLBs are distinguished into R-type (Rigid type) characterized by a non-flexible contractile nanotube resembling Myoviridae phage contractile tails, and F-type (Flexible type) with a flexible non-contractile rod-like structure similar to Siphoviridae phages. In this review, we have discussed the structural association, mechanism, and characterization of PTLBs. Moreover, we have elucidated the symbiotic biological function and application of PTLBs against MDR and XDR pathogens and highlighted the evolutionary role of PTLBs. The difficulties that must be overcome to implement PTLBs clinically are also discussed. It is imperative that these issues be addressed by academics in future studies before being implemented in clinical settings. This article is novel in its way as it will not only provide us with a gateway that acts as a novel strategy for scholars to mitigate and control the uprising issue of AMR pathogens but also promote the development of clinical studies for PTLBs.
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Affiliation(s)
- Rahul Bhattacharjee
- KIIT School of Biotechnology, KIIT University, Bhubaneswar 751024, Odisha, India
| | - Aditya Nandi
- KIIT School of Biotechnology, KIIT University, Bhubaneswar 751024, Odisha, India
| | - Adrija Sinha
- KIIT School of Biotechnology, KIIT University, Bhubaneswar 751024, Odisha, India
| | - Hrithik Kumar
- School of Biology, Indian Institute of Science Education and Research (IISER)-Thiruvananthapuram, Kerala 695551, India
| | - Disha Mitra
- University of Calcutta, 92, APC Road, Kolkata 700009, India
| | - Abhik Mojumdar
- Center for Research Equipment, Korea Basic Science Institute (KBSI), Ochang Center, Cheongju, Chungcheongbuk 28119, Republic of Korea; Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Paritosh Patel
- KIIT School of Biotechnology, KIIT University, Bhubaneswar 751024, Odisha, India
| | - Ealisha Jha
- KIIT School of Biotechnology, KIIT University, Bhubaneswar 751024, Odisha, India
| | - Suman Mishra
- KIIT School of Biotechnology, KIIT University, Bhubaneswar 751024, Odisha, India
| | - Prabhat Kumar Rout
- KIIT School of Biotechnology, KIIT University, Bhubaneswar 751024, Odisha, India
| | - Pritam Kumar Panda
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden.
| | - Mrutyunjay Suar
- KIIT School of Biotechnology, KIIT University, Bhubaneswar 751024, Odisha, India.
| | - Suresh K Verma
- KIIT School of Biotechnology, KIIT University, Bhubaneswar 751024, Odisha, India; Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden.
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Yoon KA, Kim WJ, Cho H, Yoon H, Ahn NH, Lee BH, Lee SH. Characterization of anti-microbial peptides and proteins from maggots of Calliphoridae and Sarcophagidae fly species (Diptera). Comp Biochem Physiol C Toxicol Pharmacol 2022; 259:109390. [PMID: 35661821 DOI: 10.1016/j.cbpc.2022.109390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/25/2022] [Accepted: 05/29/2022] [Indexed: 11/29/2022]
Abstract
Removal of infected wounds using maggots has been known for centuries. Early research has shown that the maggot exosecretion, whole body, and fecal waste products of Calliphoridae and Sarcophagidae species contain a variety of alkaline peptides capable of inhibiting bacterial growth. Since the wide application of antibiotics such as penicillin, a number of bacterial infections have become insensitive to antibiotic treatment. In many of these instances, maggot therapy has been successfully applied for the treatment of chronic wounds. To identify and compare the expression patterns of anti-microbial peptides (AMPs) from some dipteran species, transcriptome analyses were conducted for the maggots of 11 Calliphoridae and Sarcophagidae species. Species of the subfamily Calliphorinae showed relatively higher expression levels of AMPs and anti-microbial proteins compared with those of Luciliinae and Sarcophagidae species. Furthermore, among all of the dipteran species examined, Lucilia illustris exhibited the highest transcription levels of AMPs. Cecropin A2 and defensin, whose expression levels were the highest among the anti-microbial peptides, were synthesized to test their biological activity. The synthesized peptides showed anti-microbial activities without hemolytic activities. In particular, cecropin A2 of L. illustris exhibited the highest anti-microbial activity against all of the bacteria and fungi examined, thereby possessing the potential to be developed as a new alternative to antibiotics. This comparative transcriptomic study may provide new insights into anti-microbial compositions of some dipteran species.
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Affiliation(s)
- Kyungjae Andrew Yoon
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - Woo-Jin Kim
- EntoCode Co., Seoul 06028, Republic of Korea
| | - Hanna Cho
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea
| | - Hyeokjun Yoon
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea
| | - Neung-Ho Ahn
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea
| | - Byoung-Hee Lee
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea
| | - Si Hyeock Lee
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea; Department of Agricultural Biology, Seoul National University, Seoul 08826, Republic of Korea.
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Basha SKT, Kalla RMN, Varalakshmi M, Sudhamani H, Appa RM, Chul Hong S, Raju CN. Heterogeneous catalyst SiO 2-LaCl 3·7H 2O: characterization and microwave-assisted green synthesis of α-aminophosphonates and their antimicrobial activity. Mol Divers 2022. [PMID: 35034246 DOI: 10.1007/s11030-021-10360-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/28/2021] [Indexed: 10/19/2022]
Abstract
Silica-supported lanthanum (III) chloride (SiO2-LaCl3·7H2O) was prepared and characterized by infrared spectroscopy, X-ray diffraction analysis, scanning electron microscope, energy-dispersive X-ray spectroscopy, thermogravimetric analysis and differential thermal analysis techniques. The catalytic activity of this silica-supported lanthanum (III) chloride was investigated in a one-pot three-component Kabachnik-Fields reaction. A library of new α-aminophosphonates was prepared employing various benzothiazole and thiadiazole amines, different substituted aldehydes and diethylphosphite under solvent-free conditions using conventional/microwave methods with good to excellent yields (85-97%). The advantages of this catalyst are that it is environmentally benign, economically inexpensive, and easy to prepare, gives high yields and high purity is less time-consuming, offers easy purification is reusable and enables products to be obtained by simple recrystallization without column chromatography.
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Mondal S, Ravishankar Rai V. Molecular profiling and anti-infective potency of endophytic actinomycetes inhabiting Madhuca insignis Radlk., from Western Ghats of India. J Genet Eng Biotechnol 2021; 19:36. [PMID: 33625604 PMCID: PMC7903210 DOI: 10.1186/s43141-021-00135-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 02/15/2021] [Indexed: 12/22/2022]
Abstract
Background Endophytic actinomycetes are well known for their diverse bioactive entities and considered as an important source for drug development research. Results We isolated and identified four potential endophytic Streptomyces species, i.e., Streptomyces misionensis MI22, Streptomyces roietensis MI24, Streptomyces glaucescens MI29, and Streptomyces sp. MI04 inhabiting Madhuca insignis by its characteristic morphological features and 16S rRNA gene sequence analysis. S. misionensis MI22 exhibits a broad spectrum of anti-microbial activity against methicillin-resistant Staphylococcus aureus (25.00 ± 1.00 mm) followed by Bacillus subtilis (23.66 ± 0.57 mm), Escherichia coli (22.00 ± 0.00 mm), and Candida albicans (18.00 ± 0.00 mm). Minimum inhibitory concentrations of the ethyl acetate fraction of S. misionensis MI22 against test pathogens were ranged from 25 to 100 μg/mL. Indeed, strain MI22 also exhibited significant anti-proliferative activity against HeLa cell line with IC50 value 98 μg/mL and showed no cytotoxicity effect to the normal human embryonic kidney cell line in the MTT assay. The anti-microbial metabolites from strain MI22 were detected at Rf 0.55 as depicted by the inhibition zone on the intensive band in TLC-bioautography assay. Conclusion The study indicates that, anti-microbial metabolites of these endophytic Streptomyces species, especially S. misionensis MI22 as a prolific source to discover novel bioactive metabolites to combat multidrug-resistant pathogens.
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Affiliation(s)
- Soma Mondal
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570006, India
| | - V Ravishankar Rai
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570006, India.
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Akroum S. [ Anti-microbial activity of Rosmarinus officinalis and Zingiber officinale extracts on the species of the genus Candida and on Streptococcus pneumonia]. Ann Pharm Fr 2021; 79:62-69. [PMID: 32565159 DOI: 10.1016/j.pharma.2020.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 05/30/2020] [Accepted: 06/05/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Identifying plant extracts that could be used as new treatments for candidiasis and Streptococcus pneumoniae infections. METHODS In this work, we tested the activity of the ethanolic and methanolic extracts of Rosmarinus officinalis and Zingiber officinale on Candida albicans, Candida glabrata, Candida tropicalis, Candida krusei and Streptococcus pneumoniae. The anti-microbial activity was first tested in vitro, then in vivo on mice and rats. RESULTS The results showed that the methanolic extract of Rosmarinus officinalis and the ethanolic extract of Zingiber officinale were the most active on all the tested micro-organisms. The most sensitive species were Candida albicans, Candida krusei and Streptococcus pneumoniae. The in vivo anti-microbial activity reported that the ethanolic extract of Zingiber officinale was the most active on the three species. On the contrary, Candida glabrata and Candida tropicalis were more sensitive to the methanolic extract of Rosmarinus officinalis, but these species were considered as the most resistant yeasts. CONCLUSION The ethanolic extract of Zingiber officinale was more active than fluconazole and amoxicillin on Candida albicans, Candida krusei and Streptococcus pneumoniae, so, it could be considered for treating infections by these species. Similarly, the methanolic extract of Rosmarinus officinalis could be effective for treating candidiasis by Candida glabrata and Candida tropicalis.
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Affiliation(s)
- S Akroum
- Laboratoire de biologie moléculaire et cellulaire, faculté des sciences de la nature et de la vie, université Mohammed-Seddik-Benyahia, BP 98, rue Ouled-Aissa, Jijel, Algérie.
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Świecimska M, Golińska P, Wypij M, Goodfellow M. Genomic-based classification of Catenulispora pinisilvae sp. nov., novel actinobacteria isolated from a pine forest soil in Poland and emended description of Catenulispora rubra. Syst Appl Microbiol 2020; 44:126164. [PMID: 33360072 DOI: 10.1016/j.syapm.2020.126164] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/07/2020] [Accepted: 11/12/2020] [Indexed: 12/14/2022]
Abstract
Two actinobacteria, strains NF3 and NH11T, isolated from a pine forest soil, near Torun, Poland were examined for diverse chemotaxonomic and morphological properties that placed them in the genus Catenulispora. They produced an extensively branched stable mycelium, contained LL-diaminopimelic acid as the diamino acid of the peptidoglycan, arabinose as the diagnostic whole-organism sugar, tetra-, hexa- and octa-hydrogenated menaquinones with nine isoprenoid units as the predominant isoprenologues, iso-C16:0 and anteiso-C17:0 as major fatty acids, and formed a well supported clade within the Catenulispora 16S rRNA gene tree together with Catenulispora acidiphila DSM 44928T and Catenulispora rubra DSM 44948T sharing sequence similarities with the latter of 98.8 and 99.0%, respectively. The sizes of whole genome sequences generated for the isolates and the C. rubra strain ranged from 11.20 to 12.80 Mbp with corresponding in silico DNA G+C values of 69.9-70.0%. The isolates and the C. acidiphila and C. rubra strains formed a well supported branch in the actinobacterial phylogenomic tree. Isolates NF3 and NH11T belong to the same species as they have identical 16S rRNA gene sequences, share many chemotaxonomic, cultural and phenotypic features and show very high average nucleotide identity (ANI) and digital DNA:DNA relatedness (dDDH) similarities. They can be distinguished from their closest phylogenomic neighbours by using a combination of chemotaxonomic and phenotypic properties and by ANI and dDDH values well below the thresholds of these metrics used to assign closely related strains to different species. Consequently, we propose that the isolates be classified as a new Catenulispora species, Catenulispora pinisilvae sp. nov., the type strain is NH11T (=DSM 111109T =PCM 3046T). An emended description is given for C. rubra based on data acquired in the present study. Analyses of the draft genomes of the isolates and the C. acidiphila and C. rubra strains revealed the presence of many biosynthetic gene clusters with the potential to synthesize novel drug-like metabolites. In vitro screens showed that the isolates inhibited the growth of Gram-positive bacteria and wheat pathogens belonging to the genus Fusarium.
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Affiliation(s)
- Magdalena Świecimska
- Department of Microbiology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska 1, 87 100 Toruń, Poland.
| | - Patrycja Golińska
- Department of Microbiology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska 1, 87 100 Toruń, Poland.
| | - Magdalena Wypij
- Department of Microbiology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska 1, 87 100 Toruń, Poland.
| | - Michael Goodfellow
- School of Natural and Environmental Sciences, Ridley Building 2, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom.
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Chouhan D, Mandal P. Applications of chitosan and chitosan based metallic nanoparticles in agrosciences-A review. Int J Biol Macromol 2021; 166:1554-69. [PMID: 33181210 DOI: 10.1016/j.ijbiomac.2020.11.035] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 10/14/2020] [Accepted: 11/06/2020] [Indexed: 12/29/2022]
Abstract
The second most abundant biological macromolecule, next to cellulose is Chitosan. It is a versatile naturally occurring hydrophilic polysaccharide, derived as a deacetylated form of chitin. Due to its biocompatibility, biodegradability and antimicrobial activity, it has become a significant area of research towards drug delivery system, plant growth promotion, anti-pathogenic potentiality, seed priming and in plant defense mechanism. Various synthetic strategies have been established in recent years that couples different metals with chitosan nanoparticles. Metals like silver, copper, zinc, iron and nickel are highly compatible to form chitosan metallic nanoparticles and are proved to be non-toxic to the agricultural plant system. This review highlights the mode of action of nanochitosan on Gram-positive and Gram-negative bacteria in a distinguished manner as well as its action on fungi. A prime focus has been given on the skeletal framework of the metallic nanochitosan particles. Our study also projects the antimicrobial mechanism of chitosan based on its physiochemical properties, environmental factors and the type of organism on which it acts. Moreover, the mechanism for stimulation of plant immunity by metallic nanochitosan has also been reviewed. Our study relies on the conclusion that chitosan metallic nanoparticles showed enhanced anti-pathogenic and plant growth promoting activity in comparison to bulk chitosan.
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Heo MY, Choi W, Kim Y, Shin WR, Park RM, Kim YH, Min J. YPT7's deletion regulates yeast vacuoles' activity. Enzyme Microb Technol 2020; 143:109699. [PMID: 33375967 DOI: 10.1016/j.enzmictec.2020.109699] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/29/2020] [Accepted: 10/31/2020] [Indexed: 11/25/2022]
Abstract
The yeast vacuole is functionally corresponding to vacuoles in eukaryote cells, it consists of a fusion protein that assists in the fusion of vacuoles and plays an important role in many processes. In addition, chemicals such as NH4Cl can reduce the size of vacuoles but as a side effect that also inhibits vacuoles making them inactive. In this study, to develop pre-treatments for extending the life of cut flowers, we constructed recombinant yeast using the fusion protein YPT7 and confirmed the activity of down-sized vacuoles. All the vacuoles of the recombinant yeast except vacuoles from recombinant yeast (MBTL-MYH-3) were found to be small vacuoles than mock (MBTL-MYH-0) and YPT7 overexpression model (MBTL-MYH-1). To confirm their activity, we conducted a test for antimicrobial activity. The results showed the other vacuoles of recombinant yeast had lower antimicrobial activity than the mock control, most of them showed about 60 % to 80 % of the antimicrobial activity. However, MBTL-MYH-3, whose vacuole did not change its size, showed antimicrobial activity lower than 40 %. Therefore, the cut flowers are better able to absorb smaller vacuoles after using the fusion protein YPT7. We expect that absorbing vacuoles more effective to senescence of cut flower than vacuolar enzymes.
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Affiliation(s)
- Mi Young Heo
- Graduate School of Semiconductor and Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea
| | - Wooil Choi
- Graduate School of Semiconductor and Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea
| | - Younga Kim
- Department of Bioprocess Engineering, Jeonbuk National University, 567 Baekje-daero, deokjin-gu, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea
| | - Woo-Ri Shin
- Graduate School of Life Science, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Ra-Mi Park
- Graduate School of Semiconductor and Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea
| | - Yang-Hoon Kim
- Graduate School of Life Science, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Chungbuk, 28644, Republic of Korea.
| | - Jiho Min
- Graduate School of Semiconductor and Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea; Department of Bioprocess Engineering, Jeonbuk National University, 567 Baekje-daero, deokjin-gu, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea.
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Ayaz F, Demirbag B, Ocakoglu K. Immunoactive photosensitizers had photodynamic immunostimulatory and immunomodulatory effects on mammalian macrophages. Photodiagnosis Photodyn Ther 2020; 32:102034. [PMID: 33017658 DOI: 10.1016/j.pdpdt.2020.102034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/25/2020] [Accepted: 09/28/2020] [Indexed: 12/13/2022]
Abstract
Photodynamic compounds have great potential in biological applications. Their controlled and localized activation with specific wavelength of light provides opportunities to potentially evade the side effects of today's cancer therapies. Biologically compatible photosensitizers can be used in therapy against cancer, infections as well as inflammatory and immune disorders. In this study, we examined chlorophyll derivatives for anti-microbial, immunostimulatory and immunomodulatory activities. Under dark conditions, these chlorophyll derivatives had strong anti-microbial activities on gram positive S.aureus and gram negative E.coli. Photo activation of the chlorophyll derivatives did not alter their anti-microbial activities on gram negative or gram positive bacteria. In order to examine how these anti-microbial chlorophyll derivatives might effect immune reaction of macrophages, they were tested on mammalian macrophages. They had immunostimulatory activities on them in the dark conditions since they led to increased TNF and IL6 cytokine production even in the absence of stimulants lipopolysaccharide (LPS) and lipoteichoic acid (LTA). Photo-activation of the compounds led to decrease in pro-inflammatory cytokines, TNF and IL6, production by LPS or LTA activated macrophages. Therefore, these molecules can be used to regulate the immune response in the patients with bacterial infection while leading to death of bacteria. Light induced activation of the compounds could enable localized and controlled activation of their anti-inflammatory effects.
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Affiliation(s)
- Furkan Ayaz
- Department of Biotechnology, Faculty of Arts and Science, Mersin University, Mersin, 33110, Turkey.
| | - Burcu Demirbag
- Department of Biotechnology, Faculty of Arts and Science, Mersin University, Mersin, 33110, Turkey
| | - Kasim Ocakoglu
- Department of Energy Systems Engineering, Faculty of Technology, Tarsus University, 33400, Tarsus, Turkey.
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Pavia CS, Plummer MM. Clinical implications of nicotine as an antimicrobial agent and immune modulator. Biomed Pharmacother 2020; 129:110404. [PMID: 32603888 PMCID: PMC7320263 DOI: 10.1016/j.biopha.2020.110404] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/21/2020] [Accepted: 06/13/2020] [Indexed: 12/28/2022] Open
Abstract
Nicotine is perhaps the most important and potent, pharmacologically active substance in tobacco products. This commentary examines the possible effects that nicotine has on microbial viability and also on the host's immune system as it responds to the indigenous microflora (the microbiome) due to nicotine-induced changes to the indigenous microbial environment and any associated antigenic stimulation / immunization that may occur. To our knowledge, the analysis of such profound microbiologic changes attributable to a tobacco-related product, such as nicotine, has not been fully explored in the context of its consequences on the viability of the microbiome/microbiota and on some of the host's basic physiologic processes, such as the immune response, and its possible association on the induction and persistence of certain immunologically related diseases. Future studies should be aimed at uncovering the molecular mechanisms involved in such interactions, especially in the context of manipulating them for therapeutic purposes.
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Affiliation(s)
- Charles S Pavia
- Department of Biomedical Sciences, NYIT College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, NY, USA; Division of Infectious Diseases, Department of Medicine, New York Medical College, Valhalla, NY, USA.
| | - Maria M Plummer
- Department of Clinical Specialties, NYIT College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, NY, USA.
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Zhang C, Xue Z, Yu Z, Wang H, Liu Y, Li H, Wang L, Li C, Song L. A tandem-repeat galectin-1 from Apostichopus japonicus with broad PAMP recognition pattern and antibacterial activity. Fish Shellfish Immunol 2020; 99:167-175. [PMID: 32044463 DOI: 10.1016/j.fsi.2020.02.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/31/2020] [Accepted: 02/05/2020] [Indexed: 06/10/2023]
Abstract
Galectins belong to the family of carbohydrate-binding proteins and play major roles in the immune and inflammatory responses of both vertebrates and invertebrates. In the present study, one novel galectin-1 protein named AjGal-1 was identified from Apostichopus japonicas with an open reading frame of 1179 bp encoding a polypeptide of 392 amino acids. The deduced amino acids sequence of AjGal-1 contained three carbohydrate recognition domains (CRDs) which shared 34-37% identity with that of other galectin proteins from echinodermata, fishes, and birds. In the phylogenetic tree, AjGal-1 was closely clustered with galectins from Mesocentrotus nudus and Paracentrotus lividus. The mRNA transcripts of AjGal-1 were ubiquitously expressed in all the detected tissues, including gut, longitudinal muscle, gonad, coelomocytes, respiratory tree, tentacle and body wall, with the highest expression level in coelomocytes. After Vibrio splendidus stimulation, the mRNA expression levels of AjGal-1 in coelomocytes were significantly increased at 6 and 12 h (P < 0.01) compared with that in control group, and went back to normal level at 72 h. The recombinant protein of AjGal-1 (rAjGal-1) could bind various PAMPs including d-galactose, lipopolysaccharide (LPS), peptidoglycan (PGN) and mannose (Man), and exhibited the highest affinity to d-galactose. Meanwhile, rAjGal-1 could also bind and agglutinate different kinds of microorganisms, including gram-negative bacteria (V. splendidus and Escherichia coli), gram-positive bacteria (Micrococus leteus), and fungi (Pichia pastoris). rAjGal-1 also exhibited anti-microbial activity against V. splendidus and E. coli. All these results suggested that AjGal-1 could function as an important PRR with broad spectrum of microbial recognition and anti-microbial activity against the invading pathogen in A. japonicas.
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Affiliation(s)
- Chi Zhang
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Zhuang Xue
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Zichao Yu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Hui Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Yu Liu
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Huan Li
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Linsheng Song
- Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China.
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Önal HT, Yuzer A, Ince M, Ayaz F. Photo induced anti-inflammatory activities of a Thiophene substituted subphthalocyanine derivative. Photodiagnosis Photodyn Ther 2020; 30:101701. [PMID: 32184175 DOI: 10.1016/j.pdpdt.2020.101701] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/29/2020] [Accepted: 02/28/2020] [Indexed: 10/24/2022]
Abstract
Materials that possess photo induced biological activities present opportunities for more localized, targeted and efficient treatment options that may also reduce side effects. There have been studies supporting photo induced effects of photosensitizers as anti-cancer, anti-inflammatory and anti-microbial agents. In this study, we tested photo activated anti-inflammatory effects of a Thiophene substituted subphthalocyanine (SubPc) derivative. Thiophene and its derivatives are well known for their anti-inflammatory and anti-microbial effects. There are unwanted side effects associated with Thiophene derivatives. By substituting this biologically active molecule to SubPc structure we acquired control over its activation. Upon light treatment this derivative exerted anti-inflammatory activity on the mammalian macrophages in vitro based on the substantial decrease in extracellular inflammatory cytokine levels. Our results suggest that Thiophene substituted SubPc derivative has photo induced anti-inflammatory activities. This material can be used for the treatment of patients suffering from chronic inflammation that are not associated with a bacterial burden such as autoimmune diseases and inflammatory or allergic reactions.
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Affiliation(s)
- Harika Topal Önal
- Department of Biotechnology, Faculty of Arts and Science, Mersin University, Mersin, 33110, Turkey
| | - Abdulcelil Yuzer
- Advanced Technology Research & Application Center, Mersin University, Mersin, 33110, Turkey
| | - Mine Ince
- Advanced Technology Research & Application Center, Mersin University, Mersin, 33110, Turkey; Department of Energy Systems Engineering, Faculty of Technology, Tarsus University, 33400 Tarsus, Turkey.
| | - Furkan Ayaz
- Department of Biotechnology, Faculty of Arts and Science, Mersin University, Mersin, 33110, Turkey.
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Koustasa Mishra PK, Rajan P, Joshi P. Complement C9 binding site and the anti-microbial activity of caprine vitronectin are localized in close proximity in the N-terminal region of the protein. Microb Pathog 2020; 149:104111. [PMID: 32135222 DOI: 10.1016/j.micpath.2020.104111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/27/2020] [Accepted: 02/27/2020] [Indexed: 11/21/2022]
Abstract
Vitronectin (Vn) is a ligand for complement C9 and modulates its activity that favors bacterial growth and survival. At the same time, the anti-microbial activity of the heparin-binding region of human Vn has been documented. To understand these diverse and opposite functions of the protein, we have analyzed the interaction of caprine Vn with C9 in the homologous system. In a previous study, the C9 binding activity was mapped to the N-fragment of the caprine Vn (N-Vn), representing the first 200 amino acids. Interestingly, this fragment also inhibited bacterial growth. In this study, we have generated four sub-fragments of N-Vn and analyzed C9 binding by ELISA, blot overlay, surface plasmon resonance and circular dichroism spectroscopy. These sub-fragments were also tested for antimicrobial activity against E. coli and S. aureus by drop plate method and analyzing cell death by flow cytometry. Results of these analyses together with previous data suggest that in addition to the second RGD motif (106-108 amino acids), the first 47 residues are also required for C9 binding. The anti-microbial tests employed indicate that the growth inhibitory property is contributed by 101-150 residues of Vn. These results provide an initial insight into two diverse Vn functions.
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Ayaz F, Gonul I, Demirbag B, Ocakoglu K. Novel Copper Bearing Schiff Bases with Photodynamic Anti-Inflammatory and Anti-Microbial Activities. Appl Biochem Biotechnol 2020; 191:716-27. [PMID: 31853876 DOI: 10.1007/s12010-019-03223-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/05/2019] [Indexed: 12/17/2022]
Abstract
Schiff bases and their copper complexes have been previously studied for their anti-inflammatory, anti-tumor as well as anti-microbial activities. Schiff bases can be derivatized to gain photoluminiscence capacity. This property of the schiff bases enables the transfer of the electrons upon absorption of the light at a specific wavelength. In this study, we exploited this attribute of novel copper bearing schiff bases and tested their photodynamic biological activities. These compounds exerted photodynamic anti-inflammatory activities on the in vitro activated mammalian macrophages. Compared with salicylic acid control groups, these novel schiff bases had stronger activity which became more prominent with photo-induction. Moreover, they also had anti-microbial activity on gram negative bacteria E.coli and gram positive bacteria S.aureus.This anti-microbial activity was stronger than that of Neomycin on both bacterial strains. Our results suggest their potential use as anti-inflammatory and anti-microbial agents both in the dark as well as after photo-induction.
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Sinha BP, Chatterjee S, Buragohain R, Samanta I, Joardar SN, Mukherjee P, Maji AK, Das P, Mandal TK, Sar TK. Efficacy evaluation of ethanolic extract of Tamarindus indica L. leaves as possible alternate therapy in septic arthritis model of rabbit. Altern Ther Health Med 2019; 19:261. [PMID: 31533701 PMCID: PMC6751656 DOI: 10.1186/s12906-019-2676-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/06/2019] [Indexed: 12/12/2022]
Abstract
Background Our previous study exhibited free radicals scavenging and antioxidant activities of ethanolic and aqueous extracts of Tamarindus indica L. leaves in chronic sodium fluoride poisoning in rats. Tamarindus indica L. seed extract was also reported to have anti-arthritic efficacy by inhibiting cartilage and bone degrading factors. Therefore, an attempt was made to evaluate the effects of ethanolic extract of Tamarindus indica L. leaves in septic arthritis. Methods The safety study was performed by oral dosing of ethanolic extract of the plant leaves at 2 g kg− 1 for consecutive 28 days in rabbits. Septic arthritis was induced in rabbits by single intra-articular inoculation of 104 c.f.u. of Staphylococcus aureus to the left stifle joint and was monitored by bacterial colony count, some relevant biochemical parameters and histopathological interpretation of the affected joint. For efficacy evaluation in septic arthritis, linezolid at 75 mg kg− 1 twice daily for 10 days and the ethanolic extract of Tamarindus indica L. at 500 and 1000 mg kg− 1 for consecutive 14 days were administered orally to the rabbits after 48 h of induction of arthritis. Results In sub-acute toxicity study of Tamarindus indica L. leaves ethanolic extract, no significant change between days was found for aspertate aminotransferase, alanine transaminase, alkaline phosphatase, blood urea nitrogen and creatinine compared to day 0 values of the same group. The bacterial colony count of synovial fluid following Staphylococcus aureus inoculation to left stifle joint was found to be 1.08 ± 0.47 and 1.19 ± 0.29 c.f.u. mL− 1 in ethanolic extract low dose and high dose groups respectively, on day 2 which was reduced to 0.057 ± 0.036 c.f.u. mL− 1 and nil on day 16. The test extract was also found to markedly reduce simultaneous glucose difference, total protein ratio of serum and synovial fluid, joint radius and joint narrowing. Conclusion Ethanolic extract of Tamarindus indica L. leaves at 500 mg kg− 1 and 1000 mg kg− 1 produced anti-arthritic effects against S. aureus induced septic arthritis in rabbits. However, the ethanolic extract at 1000 mg kg− 1 orally for consecutive 14 days showed better effects in septic arthritis.
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Fiorito S, Epifano F, Taddeo VA, Genovese S, Preziuso F. A Survey of the Anti-microbial Properties of Naturally Occurring Prenyloxyphenylpropanoids and Related Compounds. Curr Top Med Chem 2019; 18:2097-2101. [PMID: 30360711 DOI: 10.2174/1568026618666181025091927] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 07/09/2018] [Accepted: 09/24/2018] [Indexed: 11/22/2022]
Abstract
O-Prenylphenylpropanoids represent a group of rare natural products. During the last twenty years, such phytochemicals have been revealed to possess a great pharmacological potential. These compounds have been obtained for the most part from plant species of the Rutaceae, Apiaceae, and Fabaceae families, as well as from fungi and bacteria. In this review we wish to detail the state of the art about O-prenylphenylpropanoids having in vitro and in vivo anti-microbial properties from different points of view. The herein cited natural products are effective in inhibiting the virulence of human oral pathogens.
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Affiliation(s)
- Serena Fiorito
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Perugia, Perugia, Italy.,Dipartimento di Farmacia, Università "G. d'Annunzio" Chieti-Pescara, Chieti Scalo, Italy
| | - Francesco Epifano
- Dipartimento di Farmacia, Università "G. d'Annunzio" Chieti-Pescara, Chieti Scalo, Italy
| | - Vito Alessandro Taddeo
- Dipartimento di Farmacia, Università "G. d'Annunzio" Chieti-Pescara, Chieti Scalo, Italy
| | - Salvatore Genovese
- Dipartimento di Farmacia, Università "G. d'Annunzio" Chieti-Pescara, Chieti Scalo, Italy
| | - Francesca Preziuso
- Dipartimento di Farmacia, Università "G. d'Annunzio" Chieti-Pescara, Chieti Scalo, Italy
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Chi WC, Pang KL, Chen WL, Wang GJ, Lee TH. Antimicrobial and iNOS inhibitory activities of the endophytic fungi isolated from the mangrove plant Acanthus ilicifolius var. xiamenensis. Bot Stud 2019; 60:4. [PMID: 30868333 PMCID: PMC6419792 DOI: 10.1186/s40529-019-0252-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 03/06/2019] [Indexed: 05/15/2023]
Abstract
BACKGROUND Acanthus ilicifolius var. xiamenensis (Acanthaceae) is an old world mangrove species and has long been used as a folk remedy for treating various ailments in traditional medicine. The nature source of A. ilicifolius var. xiamenensis is now in short supply because of the urban development and habitat destruction. To better utilize this resource, biodiversity and bioactivity of endophytic fungi isolated from A. ilicifolius var. xiamenensis were investigated. RESULTS A total of 168 fungal isolates were cultured from leaves and stems of the mangrove plant collected in January (winter) and July (summer) 2014 at Kinmen County, Taiwan. Spent culture extract of 28 isolates were found to have bioactivities against one of the following pathogenic microorganisms: the bacteria Bacillus subtilis, Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative) and the fungi Candida albicans and Cryptococcus neoformans. These positive extracts were mostly active against the Gram-positive bacteria and C. albicans. Corynespora cassiicola NTOU4889 and Xylaria sp. NTOU4900 inhibited growth of all 3 test bacteria whereas Phellinus noxius NTOU4917 inhibited both test fungi. A further anti-inflammatory study of culture extracts of these 28 isolates revealed that extracts with a high iNOS inhibition caused a low viability of cells, and those with a low iNOS inhibition had a high cell viability. Three extracts showed low cytotoxicity (i.e. > 100% cell viability) and high iNOS inhibition (< 15% of NO production) of cells and they were Phoma sp. 2 NTOU4338, Nodulisporium sp. NTOU4868 and Guignardia sp. NTOU4871. CONCLUSION These results indicate that the endophytic fungi associated with A. ilicifolius var. xiamenensis can be a potential source of novel natural active substance.
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Affiliation(s)
- Wei-Chiung Chi
- Department of Food Science, National Quemoy University, Kinmen, 89250 Taiwan
- Institute of Marine Biology, National Taiwan Ocean University, Keelung, 20224 Taiwan
| | - Ka-Lai Pang
- Institute of Marine Biology, National Taiwan Ocean University, Keelung, 20224 Taiwan
| | - Wei-Ling Chen
- Institute of Marine Biology, National Taiwan Ocean University, Keelung, 20224 Taiwan
| | - Guei-Jane Wang
- Institutes of Clinical Medical Science and Biomedical Sciences, China Medical University, Taichung, 40402 Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung, 40447 Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, 41354 Taiwan
| | - Tzong-Huei Lee
- Institute of Fisheries Science, National Taiwan University, Taipei, 10617 Taiwan
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Keller A, Brandel A, Becker MC, Balles R, Abdelmohsen UR, Ankenbrand MJ, Sickel W. Wild bees and their nests host Paenibacillus bacteria with functional potential of avail. Microbiome 2018; 6:229. [PMID: 30579360 PMCID: PMC6303958 DOI: 10.1186/s40168-018-0614-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 12/13/2018] [Indexed: 05/10/2023]
Abstract
BACKGROUND In previous studies, the gram-positive firmicute genus Paenibacillus was found with significant abundances in nests of wild solitary bees. Paenibacillus larvae is well-known for beekeepers as a severe pathogen causing the fatal honey bee disease American foulbrood, and other members of the genus are either secondary invaders of European foulbrood or considered a threat to honey bees. We thus investigated whether Paenibacillus is a common bacterium associated with various wild bees and hence poses a latent threat to honey bees visiting the same flowers. RESULTS We collected 202 samples from 82 individuals or nests of 13 bee species at the same location and screened each for Paenibacillus using high-throughput sequencing-based 16S metabarcoding. We then isolated the identified strain Paenibacillus MBD-MB06 from a solitary bee nest and sequenced its genome. We did find conserved toxin genes and such encoding for chitin-binding proteins, yet none specifically related to foulbrood virulence or chitinases. Phylogenomic analysis revealed a closer relationship to strains of root-associated Paenibacillus rather than strains causing foulbrood or other accompanying diseases. We found anti-microbial evidence within the genome, confirmed by experimental bioassays with strong growth inhibition of selected fungi as well as gram-positive and gram-negative bacteria. CONCLUSIONS The isolated wild bee associate Paenibacillus MBD-MB06 is a common, but irregularly occurring part of wild bee microbiomes, present on adult body surfaces and guts and within nests especially in megachilids. It was phylogenetically and functionally distinct from harmful members causing honey bee colony diseases, although it shared few conserved proteins putatively toxic to insects that might indicate ancestral predisposition for the evolution of insect pathogens within the group. By contrast, our strain showed anti-microbial capabilities and the genome further indicates abilities for chitin-binding and biofilm-forming, suggesting it is likely a useful associate to avoid fungal penetration of the bee cuticula and a beneficial inhabitant of nests to repress fungal threats in humid and nutrient-rich environments of wild bee nests.
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Affiliation(s)
- Alexander Keller
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany.
- Present Address: Center for Computational and Theoretical Biology, Biocenter, University of Würzburg, Hubland Nord, 97074, Würzburg, Germany.
- Present Address: Department of Bioinformatics, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany.
| | - Annette Brandel
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
- Present Address: Faculty of Biology, Albert-Ludwigs-University Freiburg, Schänzlestraße 1, 79104, Freiburg, Germany
- Present Address: BIOSS Centre for Biological Signalling Studies, Albert-Ludwigs-University Freiburg, Schänzlestraße 18, 79104, Freiburg, Germany
| | - Mira C Becker
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
- Present Address: Department of Behavioral Physiology & Sociobiology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Rebecca Balles
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Usama Ramadan Abdelmohsen
- Department of Botany II, Julius-von-Sachs Institute for Biological Sciences, University of Würzburg, Julius-von-Sachs-Platz 3, 97082, Würzburg, Germany
- Present Address: Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
| | - Markus J Ankenbrand
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
- Present Address: Center for Computational and Theoretical Biology, Biocenter, University of Würzburg, Hubland Nord, 97074, Würzburg, Germany
- Present Address: Department of Bioinformatics, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Wiebke Sickel
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
- Present Address: Molecular Biology of the Rhizosphere, Institute of Crop Science and Resource Conservation, Nussallee 13, 53115, Bonn, Germany
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Verma AK, Chatli MK, Kumar P, Mehta N. Effects of inclusion of porcine blood hydrolysate on physico-chemical quality, oxidative and microbial stability of pork batter stored at (4 ± 1 °C). J Food Sci Technol 2018; 55:4758-4769. [PMID: 30482971 PMCID: PMC6233456 DOI: 10.1007/s13197-018-3409-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/16/2018] [Accepted: 08/27/2018] [Indexed: 02/01/2023]
Abstract
Present study was conducted to evaluate the anti-oxidant and anti-microbial efficiency of porcine blood hydrolysate (PBH) in refrigerated pork batter. PBH produced by alcalase was included into pork batter at different levels viz. PBH1-0.03, PBH2-0.06 and PBH3-0.09% (w/w) and compared with control (C-0%) and positive control (PC-0.02% BHT w/w). The pH increased, whereas water activity, extract release volume and emulsion stability decreased during storage; however, all these parameters were better maintained in the treated groups. Anti-oxidant efficacy of treatments improved in a concentration dependent manner. Peroxide, thiobarbituric acid reacting substances and free fatty acid values were significantly lower than control throughout storage. The colour and microbial quality was better maintained in treatments than C and PC. In microbial challenge test, counts of tested microbes in treatment batter reduced up to 4th day but increased thereafter. Results suggest that PBH can be utilized as a potential component to improve physico-chemical quality, colour, oxidative and microbial stability of meat batter during refrigerated storage.
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Affiliation(s)
- Akhilesh K. Verma
- Department of Livestock Products Technology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab 141004 India
- Department of Livestock Products Technology, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, Uttar Pradesh 250110 India
| | - Manish Kumar Chatli
- Department of Livestock Products Technology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab 141004 India
| | - Pavan Kumar
- Department of Livestock Products Technology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab 141004 India
| | - Nitin Mehta
- Department of Livestock Products Technology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab 141004 India
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Badola R, Panjagari NR, Singh RRB, Singh AK, Prasad WG. Effect of clove bud and curry leaf essential oils on the anti-oxidative and anti-microbial activity of burfi, a milk-based confection. J Food Sci Technol 2018; 55:4802-4810. [PMID: 30482975 DOI: 10.1007/s13197-018-3413-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/03/2018] [Accepted: 09/04/2018] [Indexed: 10/28/2022]
Abstract
With scientific advancement in the field of food science and technology, there has been an increased availability of innovative ingredients that can be utilized towards value addition, quality enhancement, natural preservation, shelf life enhancement and adding novelty to traditional Indian dairy products. Here a scientific attempt has been made to increase the anti-oxidative and anti-microbial potential of burfi, a popular confection of Indian sub-continent with low shelf life using herbal essential oils (EOs) (natural preservative, antioxidant and antimicrobial) such as curry leaf (CRYF) (0.05-0.15 ppm) and clove bud (CLVB) (0.15-0.25 ppm) EO. Samples were subjected to physico-chemical, sensory, anti-oxidant and microbiological analysis and the results revealed that increasing the herbal EOs levels in burfi led to increase in anti-microbial and anti-oxidative attributes but simultaneously decreased the sensory attributes. Physico-chemical attributes remained unaffected upon EOs incorporation. Principal component analysis revealed 81.5% relation between the burfi samples and its quality attributes (DPPH activity, ABTS activity, total phenolic content, sensory attributes, standard plate count, yeast and mould count, moisture content, water activity, lightness, L* value, redness, a* value and yellowness, b* value). Herbal EOs i.e. CRYF@0.10 ppm and CLVB@0.20 ppm on khoa basis were found optimum for incorporation into burfi for enhancing storage stability without compromising the sensory acceptability.
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Affiliation(s)
- Richa Badola
- 1Department of Food Technology, UCALS, Uttaranchal University, Dehradun, Uttarakhand 248007 India.,2Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, Haryana 132001 India
| | - Narender Raju Panjagari
- 2Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, Haryana 132001 India
| | - Ram Ran Bijoy Singh
- 2Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, Haryana 132001 India
| | - Ashish Kumar Singh
- 2Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, Haryana 132001 India
| | - Writdhama G Prasad
- 2Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, Haryana 132001 India
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Wadhwa G, Kumar S, Mittal V, Rao R. Encapsulation of babchi essential oil into microsponges: Physicochemical properties, cytotoxic evaluation and anti-microbial activity. J Food Drug Anal 2018; 27:60-70. [PMID: 30648595 PMCID: PMC9298628 DOI: 10.1016/j.jfda.2018.07.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 06/13/2018] [Accepted: 07/23/2018] [Indexed: 01/09/2023] Open
Abstract
Babchi essential oil (BEO) is a valuable essential oil reported to possess a variety of biological activities such as antitumor, anti inflammatory, immunomodulatory, antioxidant, antifungal and antibacterial properties. Due to its anti-microbial properties, this oil possesses an immense potential for the treatment of dermatological disorders. Further, it has minimal tendency to develop resistance, a common issue with most of the antibiotics. However, its highly viscous nature and poor stability in the presence of light, air and high temperature, limits its practical applications. To surmount these issues, this research aims to encapsulate BEO in ethyl cellulose (EC) microsponges for enhanced stability, antibacterial effect and decreased dermal toxicity. The quasi emulsion solvent evaporation technique was used for fabrication of the BEO microsponges employing EC as polymer, polyvinyl alcohol (PVA) as stabilizer and dichloro methane (DCM) as solvent. The effect of formulation variables such as the amount of EC and PVA were also investigated. The prepared microformulations were evaluated for production yield, encapsulation efficiency, particle size and in vitro release. In vitro cytotoxicity was also checked to assess dermal safety of BEO microsponges. Results revealed that all the dispersions were in micro size range (20.44 ± 3.13 μmto 41.75 ± 3.65 μm), with good encapsulation efficiency (87.70 ± 1.20% of F2) and controlled release profile (cumulative drug release 73.34 ± 1.76%). Field emission scanning electron microscopy results showed that the microsponges possessed a spherical uniform shape with a spongy structure. Results of cytotoxicity study indicated that the prepared microsponges were safer on dermal cells in comparison to pure BEO. The optimized formulation was also evaluated for in vitro antimicrobial assay against dermal bacteria like Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli, which confirmed their enhanced antibacterial activity. Furthermore, the results of photostability and stability analysis indicated improved stability of BEO loaded microsponges. Hence, encapsulation of BEO in microsponges resulted in efficacious carrier system in terms of stability as well as safety of this essential oil along with handling benefits.
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Affiliation(s)
- Geetika Wadhwa
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Sunil Kumar
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Vineet Mittal
- Department of Pharmaceutical Sciences, Maharishi Dayanand University, Rohtak, 1240001, Haryana, India
| | - Rekha Rao
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India.
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Sarkar M, Maiti M, Maiti S, Xu S, Li Q. ZnO-SiO 2 nanohybrid decorated sustainable geopolymer retaining anti-biodeterioration activity with improved durability. Mater Sci Eng C Mater Biol Appl 2018; 92:663-672. [PMID: 30184793 DOI: 10.1016/j.msec.2018.07.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 06/25/2018] [Accepted: 07/01/2018] [Indexed: 12/12/2022]
Abstract
Geopolymer, consists of industrial by-product fly ash, and alkaline activator, possesses similar strength along with durability like conventional cement composite, is an alternative construction substantial of Portland cement in current scenario. Corrosion of the concrete materials resulted mainly from the chemical degradation. Besides chemical degradation, biogenic-deterioration is also another alarming issue especially in the sewer systems, bridge piers, several pipelines and offshore platforms and the need to act on it is long-standing. In this study, application of zinc oxide-silica nanohybrid based sustainable geopolymer (GMZnO-Si) has been investigated for the development of a sustainable, anti-biodeteriorate cementitious material having significant mechanical strength and durability. Initially, zinc oxide nano-rods (ZnO NRs) have been synthesized and spherical silica nanoparticles were decorated on the surface of ZnO NRs. The ZnO-SiO2 composite was characterized by various techniques (FTIR, XRD, FESEM, EDS, TEM, and XPS). Ambient temperature cured GMZnO-Si mortar was further explored in terms of mechanical strength, durability, mechanistic anti-microbial (E. coli, S. aureus, A. niger) influences. Mechanical properties of GMZnO-Si are found significantly higher than that of control samples. MIC, MBC, and MFC results demonstrate enhanced anti-microbial efficacy of GMZnO-Si. Inner permeability assay, reactive oxygen species generation and microscopic images of cell wall rupture and DNA damage studies supported the detailed understanding of anti-microbial activities. These experimental findings suggest that incorporation of ZnO-SiO2 hybrid in geopolymer will pave the way for biodeterioration resistant concrete with enhanced mechanical and structural behaviour.
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Affiliation(s)
- Manas Sarkar
- Institute of Advanced Engineering Structures and Materials, College of Civil engineering and Architecture, Zhejiang University, China
| | - Moumita Maiti
- College of Biosystems Engineering and Food Science, Zhejiang University, China
| | - Soumen Maiti
- CENIMAT/I3N, Faculdade de Ciências e Tecnologia, FCT, Portugal; Present address: St Thomas college of Engineering & Technology, India
| | - Shilang Xu
- Institute of Advanced Engineering Structures and Materials, College of Civil engineering and Architecture, Zhejiang University, China.
| | - Qinghua Li
- Institute of Advanced Engineering Structures and Materials, College of Civil engineering and Architecture, Zhejiang University, China
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Junaid M, Alam MJ, Hossain MK, Halim MA, Ullah MO. Molecular docking and dynamics of Nickel-Schiff base complexes for inhibiting β-lactamase of Mycobacterium tuberculosis. In Silico Pharmacol 2018; 6:6. [PMID: 30607319 DOI: 10.1007/s40203-018-0044-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 03/19/2018] [Indexed: 12/31/2022] Open
Abstract
In recent years, multidrug-resistance has become a primary concern in the treatment and management of tuberculosis, an infectious disease caused by Mycobacterium tuberculosis. In this context, searching new anti-tuberculosis agents particularly targeting the β-lactamase (BlaC) is reported to be promising as this enzyme is one of the key player in the development of multidrug resistance. This study reports the design of some Nickel (Ni) based tetradentate N2O2 Schiff bases, employing density functional theory. All analogs are optimized at B3LYP/SDD level of theory. Dipole moment, electronic energy, enthalpy, Gibbs free energy, HOMO-LUMO gap, and softness of these modified drugs are also investigated. Molecular interactions between designed ligands and BlaC have been analyzed by molecular docking approach, followed by molecular dynamics (MD) simulation. All designed compounds show low HOMO-LUMO gap, while addition of halogen increases the dipole moment of the compounds. Docking and MD simulation investigations reveal that the designed compounds are more potent than standard inhibitor, where Ile117, Pro290, Arg236 and Thr253 residues of BlaC are found to play important role in the ligand binding. Through MD simulation study, the best binding compound is also observed to form stable complex by increasing the protein rigidness. The ADME/T analysis suggests that modified drugs are less toxic and shows an improved pharmacokinetic properties than that of the standard drug. These results further confirm the ability of Ni-directed Schiff bases to bind simultaneously to the active site of BlaC and support them as potential candidates for the future treatment of tuberculosis disease.
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Affiliation(s)
- Md Junaid
- 1Department of Pharmaceutical Sciences, North South University, Dhaka, 1229 Bangladesh
| | - Md Jahangir Alam
- 1Department of Pharmaceutical Sciences, North South University, Dhaka, 1229 Bangladesh
| | - Md Kamal Hossain
- 2Department of Chemistry, Jahangirnagar University, Savar, Dhaka, 1342 Bangladesh
| | - Mohammad A Halim
- Division of Computer-Aided Drug Design, The Red-Green Research Centre, BICCB, 218 Elephant Road, Dhaka, 1205 Bangladesh.,4Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, Lyon, France
| | - M Obayed Ullah
- 1Department of Pharmaceutical Sciences, North South University, Dhaka, 1229 Bangladesh
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Yang WS, Yang SH, Lee JY, Jang SH, Kim CH, Hwnag CW. Anti-oxidative and Anti-microbial Activities of Purified MPN-1-1 from Persicaria nepalensis (Meisn.) Miyabe. Curr Pharm Biotechnol 2017; 18:552-559. [PMID: 28685688 DOI: 10.2174/1389201018666170705165337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 05/11/2017] [Accepted: 06/23/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Persicaria is a genus of flowering plants generally used for traditional medicine and nutritional supplements in tropical and subtropical East Asian countries. Previous studies have shown that Persicaria extracts alleviate lipid peroxidation, hypertension, and inflammation. OBJECTIVE We investigated the anti-oxidative and anti-microbial effects of ethanol extracts of Persicaria nepalensis (Meisn.) Miyabe, and isolated and identified an active compound, MPN-1-1 from the ethanol extracts. RESULTS Anti-oxidative values, as indicated by the Oxygen Radical Absorbance Capacity (ORAC) assay, were enhanced by treatment with Persicaria nepalensis (Meisn.) Miyabe ethanol extracts, and bacterial growth was inhibited. The active compound (MPN-1-1), which was further isolated and purified from a Persicaria nepalensis (Meisn.) Miyabe ethanol extract by medium pressure liquid chromatography (MPLC), also had strong anti-oxidative and anti-microbial activity. 1H-NMR spectroscopy identified MPN-1-1 as a 1-ethenyl-4,8-dimethoxy-9H-pyrido(3,4-β) indole compound, which is an alkaloid. CONCLUSION Our results provide evidence that Persicaria nepalensis (Meisn.) Miyabe extract has strong physiological activity without any toxic effects, and furthermore, MPN-1-1 can be potentially utilized as a natural dietary supplement as well as an anti-oxidant.
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Affiliation(s)
- Woong-Suk Yang
- School of Life Sciences and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu. Korea
| | - Seung-Hoon Yang
- Systems Biotechnology Research Center, Korea Institute of Science and Technology (KIST), Gangneung. Korea
| | - Jae-Yong Lee
- Department of Healthcare and Biotechnology, College of Health, Kyungwoon University, Kyungpook. Korea
| | - Seong-Ho Jang
- Department of Bioenvironmental Energy, Pusan National University, Pusan. Korea
| | - Cheorl-Ho Kim
- Department of Biological Science, Glycobiology Unit, College of Natural Science, SungKyunKwan University, Suwon, Gyungki-do. Korea
| | - Cher-Won Hwnag
- Department of AGEE, Handong University, Pohang, Gyeongbuk 37554. Korea
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Hamdi A, Jaramillo-Carmona S, Srairi Beji R, Tej R, Zaoui S, Rodríguez-Arcos R, Jiménez-Araujo A, Kasri M, Lachaal M, Karray Bouraoui N, Guillén-Bejarano R. The phytochemical and bioactivity profiles of wild Asparagus albus L. plant. Food Res Int 2017; 99:720-9. [PMID: 28784537 DOI: 10.1016/j.foodres.2017.06.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 06/12/2017] [Accepted: 06/17/2017] [Indexed: 11/24/2022]
Abstract
The ethanolic extracts from the leaves, pericarps and rhizomes of Asparagus albus L. were investigated for their phytochemical composition, antioxidant (DPPH and FRAP assays), anti-microbial against human pathogenic isolates and cytotoxic (human colon carcinoma HCT-116 cells) activities. The highest flavonoid content was obtained in the leaf extract followed by the pericarp but there were no flavonoids detected in the rhizome. However, the rhizome had a high concentration of saponins. Flavonoid and saponin profiles were similar to those previously described for the triguero Huetor Tajar asparagus landrace. It was found that the pericarp ethanolic extract exhibited higher antioxidant activity than rhizome and leaf extracts. Moreover, the rhizome possessed more evident cytotoxic activity against HCT-116 cells in comparison to leaf and pericarp. All extracts showed varying degrees of antimicrobial activity against most of the human pathogenic isolates. In addition, the leaves showed more powerful inhibitory activities against the maximum number of bacteria and all the fungai isolated and the highest activity was in the pericarp extract against multidrug resistant Pseudomonas aeruginosa (MDR) and Erythromycin resistant Streptococcus agalactiae (ER) with an inhibition zone of 21mm and 19mm, respectively. The results show that A. albus could be a new crop with pharmaceutical interest because its richness in bioactive compounds provides considerable benefits for human health.
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Severino P, Silveira EF, Loureiro K, Chaud MV, Antonini D, Lancellotti M, Sarmento VH, da Silva CF, Santana MHA, Souto EB. Antimicrobial activity of polymyxin-loaded solid lipid nanoparticles (PLX-SLN): Characterization of physicochemical properties and in vitro efficacy. Eur J Pharm Sci 2017; 106:177-184. [PMID: 28576561 DOI: 10.1016/j.ejps.2017.05.063] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/14/2017] [Accepted: 05/30/2017] [Indexed: 01/07/2023]
Abstract
Antimicrobial resistance is a current public health concern, limiting the available therapeutic options used for the treatment of common bacterial infections. The development of new drug entities via biotechnological processes is however expensive and time-consuming. Therefore, old antimicrobial agents have been recovered for clinical use. An example of these drugs is polymyxin, which is known for its serious adverse side effects, such as nephrotoxicity, neurotoxicity and promotion of skin pigmentation. To overcome these limitations, the use of biodegradable nanoparticles has been proposed to allow site-specific targeting, increasing the drug's bioavailability and decreasing its side effects. The aim of this work was the development of an optimized pharmaceutical formulation composed of solid lipid nanoparticles (SLN) loading polymyxin B sulphate (PLX) for the treatment of bacterial infections. The PLX-loaded SLN were produced by a double emulsion method (w/o/w), obtaining particles with a mean size of approximately 200nm, polydispersity of 0.3 and zeta potential of -30mV. The encapsulation efficiency reached values above 90% for all developed formulations. SLN remained stable for a period of 6months of storage at room temperature. The occlusive properties of the SLN was shown to be dependent on the type of lipid, while the antimicrobial properties of PLX-loaded SLN were effective against resistant strains of Pseudomonas aeruginosa. Results from the differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD) and small angle X-ray scattering (SAXS) analyses confirmed the crystallinity of the inner SLN matrices, suggesting the capacity of these particles to modify the release profile of the loaded drug.
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Affiliation(s)
- Patrícia Severino
- Laboratory of Nanotechnology and Nanomedicine (LNMed), University of Tiradentes (Unit), and Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, 49010-390 Aracaju, Brazil.
| | - Elisânia F Silveira
- Laboratory of Nanotechnology and Nanomedicine (LNMed), University of Tiradentes (Unit), and Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, 49010-390 Aracaju, Brazil
| | - Kahynna Loureiro
- Laboratory of Nanotechnology and Nanomedicine (LNMed), University of Tiradentes (Unit), and Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, 49010-390 Aracaju, Brazil
| | - Marco V Chaud
- Laboratory of Biomaterials and Nanotechnology for the Development and Evaluation of Bioactive Substances, University of Sorocaba, Rodovia, Raposo Tavares km 92.5, 18023-000 Sorocaba, São Paulo, Brazil
| | - Danilo Antonini
- Department of Chemistry, Federal University of Sergipe, 49500-000 Itabaiana, SE, Brazil
| | - Marcelo Lancellotti
- Department of Chemistry, Federal University of Sergipe, 49500-000 Itabaiana, SE, Brazil
| | - Victor Hugo Sarmento
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, Diadema, Brazil
| | - Classius F da Silva
- Biochemical Department, Biology Institute, State University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Maria Helena A Santana
- Laboratory for the Development of Biotechnological Processes, School of Chemical Engineering, State University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal.
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Thakkar SS, Thakor P, Doshi H, Ray A. 1,2,4-Triazole and 1,3,4-oxadiazole analogues: Synthesis, MO studies, in silico molecular docking studies, antimalarial as DHFR inhibitor and antimicrobial activities. Bioorg Med Chem 2017; 25:4064-75. [PMID: 28634040 DOI: 10.1016/j.bmc.2017.05.054] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
1,2,4-Triazole and 1,3,4-oxadiazole analogues are of interest due to their potential activity against microbial and malarial infections. In search of suitable antimicrobial and antimalarial compounds, we report here the synthesis, characterization and biological activities of 1,2,4-triazole and 1,3,4-oxadiazole analogues (SS 1-SS 10). The molecules were characterized by IR, mass, 1H NMR, 13C NMR and elemental analysis. The in vitro antimicrobial activity was investigated against pathogenic strains, the results were explained with the help of DFT and PM6 molecular orbital calculations. In vitro cytotoxicity and genotoxicity of the molecules were studied against S. pombe cells. In vitro antimalarial activity was studied. The active compounds were further evaluated for enzyme inhibition efficacy against the receptor Pf-DHFR computationally as well as in vitro to prove their candidature as lead dihydrofolate reductase inhibitors.
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Meshram JV, Koli VB, Phadatare MR, Pawar SH. Anti-microbial surfaces: An approach for deposition of ZnO nanoparticles on PVA-Gelatin composite film by screen printing technique. Mater Sci Eng C Mater Biol Appl 2016; 73:257-266. [PMID: 28183607 DOI: 10.1016/j.msec.2016.12.043] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/18/2016] [Accepted: 12/04/2016] [Indexed: 12/14/2022]
Abstract
Initially micro-organisms get exposed to the surfaces, this demands development of anti-microbial surfaces to inhibit their proliferation. Therefore, herein, we attempt screen printing technique for development of PVA-GE/ZnO nanocomposite (PG/ZnO) films. The synthesis of PG/ZnO nanocomposite includes two steps as: (i) Coating of Zinc Oxide nanoparticles (ZnO NPs) by poly ethylene glycol in order to be compatible with organic counterparts. (ii) Deposition of coated nanoparticles on the PG film surface. The results suggest the enhancement in anti-microbial activity of PG/ZnO nanocomposite over pure ZnO NPs against both Gram positive Bacillus subtilis and Gram negative Escherichia coli from zone of inhibition. The uniformity in deposition is further confirmed by scanning electron microscopy (SEM) images. The phase identification of ZnO NPs and formation of PG/ZnO nanocomposite has been confirmed by X-ray diffraction (XRD) analysis and UV-vis spectroscopy (UV-vis). The Attenuated total reflection Spectroscopy (ATR) analysis indicates the ester bond between PVA and gelatin molecules. The thermal stability of nanocomposite is studied by thermogravimetric analysis (TGA) revealing increase in crystallinity due to ZnO NPs which could be utilized to inhibit the growth of micro-organisms. The tensile strength is found to be higher and percent elongation is double of PG/ZnO nanocomposite than PG composite film.
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Affiliation(s)
- J V Meshram
- Center for Interdisciplinary Research, D. Y. Patil University, Kolhapur 416006, Maharashtra, India
| | - V B Koli
- Center for Interdisciplinary Research, D. Y. Patil University, Kolhapur 416006, Maharashtra, India
| | - M R Phadatare
- Center for Interdisciplinary Research, D. Y. Patil University, Kolhapur 416006, Maharashtra, India
| | - S H Pawar
- Center for Interdisciplinary Research, D. Y. Patil University, Kolhapur 416006, Maharashtra, India.
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Zeyrek CT, Boyacioğlu B, Yıldız M, Ünver H, Yolal D, Demir N, Elmali A, Tadesse S, Aslan K. Synthesis, characterization, and evaluation of (E)-methyl 2-((2-oxonaphthalen-1(2H)-ylidene)methylamino)acetate as a biological agent and an anion sensor. Bioorg Med Chem 2016; 24:5592-5601. [PMID: 27658791 DOI: 10.1016/j.bmc.2016.09.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/06/2016] [Accepted: 09/08/2016] [Indexed: 11/16/2022]
Abstract
An amino acid based and bidentate Schiff base, (E)-methyl 2-((2-oxonaphthalen-1(2H)-ylidene)methylamino)acetate (ligand), was synthesized from the reaction of glycine-methyl ester hydrochloride with 2-hydroxy-1-naphthaldehyde. Characterization of the ligand was carried out using theoretical quantum-mechanical calculations and experimental spectroscopic methods. The molecular structure of the compound was confirmed using X-ray single-crystal data, NMR, FTIR and UV-Visible spectroscopy, which were in good agreement with the structure predicted by the theoretical calculations using density functional theory (DFT). Antimicrobial activity of the ligand was investigated for its minimum inhibitory concentration (MIC) to several bacteria and yeast cultures. UV-Visible spectroscopy studies also shown that the ligand can bind calf thymus DNA (CT-DNA) electrostatic binding. In addition, DNA cleavage study showed that the ligand cleaved DNA without the need for external agents. Energetically most favorable docked structures were obtained from the rigid molecular docking of the compound with DNA. The compound binds at the active site of the DNA proteins by weak non-covalent interactions. The colorimetric response of the ligand in DMSO to the addition of equivalent amount of anions (F-, Br-, I-, CN-, SCN-, ClO4-, HSO4-, AcO-, H2PO4-, N3- and OH-) was investigated and the ligand was shown to be sensitive to CN- anion.
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Affiliation(s)
- Celal Tuğrul Zeyrek
- Ankara Nuclear Research and Training Center, Turkish Atomic Energy Authority, TR-06100 Besevler-Ankara, Turkey
| | - Bahadir Boyacioğlu
- Vocational School of Health Services, Ankara University, TR-06290 Kecioren-Ankara, Turkey
| | - Mustafa Yıldız
- Department of Chemistry, Faculty of Arts and Sciences, Çanakkale Onsekiz Mart University, TR-17100 Çanakkale, Turkey.
| | - Hüseyin Ünver
- Department of Physics, Faculty of Science, Ankara University, 06100 Beşevler-Ankara, Turkey
| | - Devrim Yolal
- Department of Physics, Faculty of Science, Ankara University, 06100 Beşevler-Ankara, Turkey
| | - Neslihan Demir
- Department of Biology, Faculty of Arts and Sciences, Çanakkale Onsekiz Mart University, TR-17100 Çanakkale, Turkey
| | - Ayhan Elmali
- Department of Physics Engineering, Faculty of Engineering, University of Ankara, TR-06100 Besevler-Ankara, Turkey
| | - Solomon Tadesse
- Morgan State University, Department of Chemistry, 1700 East Cold Spring Lane, Baltimore, MD 21251, USA
| | - Kadir Aslan
- Morgan State University, Department of Chemistry, 1700 East Cold Spring Lane, Baltimore, MD 21251, USA.
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Arun T, Subramanian R, Raman N. Novel bio-essential metal based complexes linked by heterocyclic ligand: Synthesis, structural elucidation, biological investigation and docking analysis. J Photochem Photobiol B 2015; 154:67-76. [PMID: 26690017 DOI: 10.1016/j.jphotobiol.2015.11.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/06/2015] [Accepted: 11/10/2015] [Indexed: 11/30/2022]
Abstract
New series of bio-essential metal based complexes linked by Schiff base ligand (L) and 2,2'-bipyridine (bpy) have been synthesized and characterized by diverse spectral techniques such as elemental analysis, magnetic susceptibility, molar conductivity measurements, FT-IR, UV-Vis., (1)H NMR, (13)C NMR, EPR and Mass. The spectral data suggest that the metal complexes espouse octahedral geometry around the metal ions. Interactions of the complexes with CT DNA have been explored by electronic absorption, ethidium bromide displacement assay, viscosity measurements, cyclic voltammetry and differential pulse voltammetry in order to evaluate the possible DNA-binding mode and to calculate the corresponding DNA-binding constants. The DNA interaction studies propose that the intercalative mode of interaction and the complexes exhibit oxidative cleavage of pUC19 DNA in the presence of hydrogen peroxide as activator. The synthesized Schiff base ligand and its metal complexes have been screened for anti-microbial activity by micro dilution method against two Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis), two Gram-negative bacteria (Escherichia coli and Salmonella typhi) and three fungi strains (Fusarium solani, Aspergillus niger and Candida albicans) revealing that the complexes are good anti-pathogenic agents than the ligand. Moreover, molecular docking analysis has been performed to confirm the nature of binding of the complexes with DNA.
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Affiliation(s)
- T Arun
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, Tamilnadu, India
| | - R Subramanian
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology, Tirunelveli 627152, Tamilnadu, India
| | - N Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, Tamilnadu, India.
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Lucena Filho JHSD, Lima RDF, Medeiros ACDD, Pereira JV, Granville-Garcia AF, Costa EMMDB. Antimicrobial Potential of Momordica charantia L. against Multiresistant Standard Species and Clinical Isolates. J Contemp Dent Pract 2015; 16:854-8. [PMID: 26718290 DOI: 10.5005/jp-journals-10024-1770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIM The aim of the present study was to evaluate the antibacterial and antifungal potential in vitro of Momordica charantia L. against the microorganisms of clinical interest (standard strains and multiresistant isolates) in order to aggregate scientific information in relation to its use as a therapeutic product. MATERIALS AND METHODS M. charantia L. plant material was acquired in municipality of Malta, Paraiba, Brazil. The extract was obtained through maceration, filtration and then concentrated under reduced pressure in a rotary evaporator, resulting in a dough, and was then dried in an oven for 72 hours at 40°C. Antimicrobial action of ethanolic extract of seed M. charantia L. was evaluated based on the minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC) and minimum fungicidal concentration (MFC) against standard strains of bacteria, isolates multiresistant bacteria and Candida species, by microdilution in broth method. RESULTS All organisms were sensitive to the extract, being considered strong antimicrobial activity (MIC and MBC/MFC < 0.125 mg/ml). CONCLUSION The M. charantia L. showed strong antimicrobial potential, with bactericidal and fungicidal profile, there is the prospect to constitute a new therapeutic strategy for the control of infections, particularly in multiresistant strains. CLINICAL SIGNIFICANCE The use of medicinal plants in treatment of infectious processes have an important function nowadays, due to the limitations of the use of synthetic antibiotics available, related specifically to the microbial resistance emergence.
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Abstract
The present study was designed to isolate and evaluate the antibacterial activity of the compounds from the whole plant of Euphorbia helioscopia L.. Various chromatographic techniques were used to isolate and purify the compound. The structure of the compound was elucidated on basis of spectral data ((1)H NMR, (13)C NMR, (1)H-(1)H COSY, HSQC, HMBC, NOESY, IR, and HR-ESI-MS). A new jatrophone-type diterpenoid (14α,15β-diacetoxy-3β-benzoyloxy-7β-nicotinoyloxy-9-oxo-jatropha-5E,11E-diene), named euphoheliosnoid E (1), was isolated from the whole plant of E. helioscopia L. Compound 1 showed significant anti-microbial activity against oral pathogens.
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Affiliation(s)
- Di Geng
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
| | - Li-Tao Yi
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Yao Shi
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Zhi-Da Min
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
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Chinnababu B, Purushotham Reddy S, Sankara Rao P, Loka Reddy V, Sudheer Kumar B, Rao JV, Prakasham RS, Suresh Babu K. Isolation, semi-synthesis and bio-evaluation of spatane derivatives from the brown algae Stoechospermum marginatum. Bioorg Med Chem Lett 2015; 25:2479-83. [PMID: 25978960 DOI: 10.1016/j.bmcl.2015.04.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 04/13/2015] [Accepted: 04/21/2015] [Indexed: 01/20/2023]
Abstract
A comprehensive investigation of chemical constituents from brown algae Stoechospermum marginatum yielded ten known spatane compounds (1-10). To develop the compound libraries on these scaffolds, a series of semi synthetic derivatives was prepared (1a-1d, 2a, 4a, 11 and 12) and investigated for their anti-microbial and anticancer activities. The results indicated that compounds 2a, 4, 1b and 4a exhibited potent cytotoxic activities against B16F10 cancer cell line with IC50 values of 3.28, 3.45, 3.62 and 4.11 μg/ml respectively, which are comparable to the standard drug (etoposide IC50=4.12 μg/ml). In addition, 4 and 1b were also manifested potent antimicrobial activities against tested bacterial and fungal strains. This is the first Letter on the synthesis and biological activities of these novel derivatives.
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Affiliation(s)
- B Chinnababu
- Division of Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 607, India
| | - S Purushotham Reddy
- Division of Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 607, India
| | - P Sankara Rao
- Division of Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 607, India
| | - V Loka Reddy
- Biology and Biotechnology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 607, India
| | - B Sudheer Kumar
- BEEC Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 607, India
| | - J Venkateswara Rao
- Biology and Biotechnology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 607, India
| | - R S Prakasham
- BEEC Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 607, India
| | - K Suresh Babu
- Division of Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 607, India.
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Elango G, Roopan SM. Green synthesis, spectroscopic investigation and photocatalytic activity of lead nanoparticles. Spectrochim Acta A Mol Biomol Spectrosc 2015; 139:367-73. [PMID: 25574657 DOI: 10.1016/j.saa.2014.12.066] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 11/27/2014] [Accepted: 12/17/2014] [Indexed: 05/14/2023]
Abstract
Most of researcher focused their research towards synthesize of nanoparticles by the method of applied chemical method which was one of the costliest method. We have focused cheapest and simplest method for the synthesizing of lead nanoparticles (Pb-NPs) using cocos nucifera L extract. The methanolic extract of cocos nucifera L was efficiently used as a reducing agent for synthesizing Pb-NPs. On treatment of lead acetate with cocos nucifera coir extracts, stable Pb-NPs were formed. The synthesized Pb-NPs were further confirmed by UV-visible spectroscopy, X-ray diffraction (XRD), Transmission electron microscope (TEM) and Energy Dispersive (EDAX) analysis. The secondary metabolites present in methanolic extract which can mainly act as a reducing and capping agents for the formation of Pb-NPs were identified by GC-MS. Anti-microbial activity for Pb-NPs against four pathogenic strain's such as Staphylococcus aureus, Escheria coli, Staphylococcus epidermis and Bacillus subtilis. Result states that Pb-NPs size was 47 nm and also shows good activity against S. aureus. Further we report on photocatalytic absorption of malachite green dye processed in short UV wavelength at 254 nm. UV spectral analysis showed peak absorbance at 613 nm with special reference to the excitation of surfaces plasmon vibration by Pb-NPs.
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Affiliation(s)
- Ganesh Elango
- Chemistry Research Laboratory, Organic Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632 014, Tamilnadu, India
| | - Selvaraj Mohana Roopan
- Chemistry Research Laboratory, Organic Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632 014, Tamilnadu, India.
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Tirupathi RG, Suresh BK, Ujwal KJ, Sujana P, Raoa AV, Sreedhar AS. Anti-microbial principles of selected remedial plants from Southern India. Asian Pac J Trop Biomed 2015; 1:298-305. [PMID: 23569779 DOI: 10.1016/s2221-1691(11)60047-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Revised: 03/10/2011] [Accepted: 04/06/2011] [Indexed: 10/28/2022] Open
Abstract
OBJECTIVE To examine the anti-bacterial activity of leaf extracts of Morus alba L. (Moraceae) and Piper betel L. (Piperaceae), and seed extracts of Bombax ceiba L. (Borabacaceae). METHODS We have partially purified plant extracts by solvent extraction method, and evaluated the effect of individual fractions on bacterial growth using Escherichia coli (E. coli), Pseudomonas aeruginosa (P. aeruginosa) and Staphylococcus aureus (S. aureus) bacterial strains. RESULTS Compared with Morus and Bombax fractions, Piper fractions showed significant growth inhibition on all the three types of bacteria studied. The EtOAc-hexane fractions of Piper leaves exhibited significant anti-bacterial activity with minimum inhibitory concentrations (MIC) of 50 µg/mL culture against both gram-positive and gram-negative bacteria. The EtOAc-fractions I, II, and IV inhibited bacterial colony formation on soft agar in addition to growth inhibition. A combination treatment of piper fractions with ampicillin resulted in significant growth inhibition in E. coli and P. aeruginosa, and combination with anticancer drug geldanamycin (2µg/mL) showed selective growth inhibition against P. aeruginosa and S. aureus. Three major compounds, i.e., eugenol, 3-hexene-ol and stigmasterol, were primarily identified from Piper betel leaf extractions. Among the individual compounds, eugenol treatment showed improved growth inhibition compared with stigmasterol and 3-hexene-ol. CONCLUSIONS We are reporting potential anti-bacterial compounds from Piper betel against both gram-positive and gram-negative bacteria either alone or in combination with drug treatment.
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Affiliation(s)
- Rao G Tirupathi
- Centre for Cellular and Molecular Biology, Hyderabad 500 007, India
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Kim WS, Choi WJ, Lee S, Kim WJ, Lee DC, Sohn UD, Shin HS, Kim W. Anti-inflammatory, Antioxidant and Antimicrobial Effects of Artemisinin Extracts from Artemisia annua L. Korean J Physiol Pharmacol 2014; 19:21-7. [PMID: 25605993 PMCID: PMC4297758 DOI: 10.4196/kjpp.2015.19.1.21] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 10/05/2014] [Accepted: 10/15/2014] [Indexed: 12/12/2022]
Abstract
The anti-inflammatory, antioxidant, and antimicrobial properties of artemisinin derived from water, methanol, ethanol, or acetone extracts of Artemisia annua L. were evaluated. All 4 artemisinin-containing extracts had anti-inflammatory effects. Of these, the acetone extract had the greatest inhibitory effect on lipopolysaccharide-induced nitric oxide (NO), prostaglandin E2 (PGE2), and proinflammatory cytokine (IL-1β , IL-6, and IL-10) production. Antioxidant activity evaluations revealed that the ethanol extract had the highest free radical scavenging activity, (91.0±3.2%), similar to α-tocopherol (99.9%). The extracts had antimicrobial activity against the periodontopathic microorganisms Aggregatibacter actinomycetemcomitans, Fusobacterium nucleatum subsp. animalis, Fusobacterium nucleatum subsp. polymorphum, and Prevotella intermedia. This study shows that Artemisia annua L. extracts contain anti-inflammatory, antioxidant, and antimicrobial substances and should be considered for use in pharmaceutical products for the treatment of dental diseases.
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Affiliation(s)
- Wan-Su Kim
- Department of Periodontology, College of Dentistry, Wonkwang University, Iksan 570-749, Korea
| | - Woo Jin Choi
- Department of Microbiology, College of Medicine, Chung-Ang University, Seoul 156-756, Korea
| | - Sunwoo Lee
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, Seoul 156-756, Korea
| | - Woo Joong Kim
- Department of Microbiology, College of Medicine, Chung-Ang University, Seoul 156-756, Korea
| | - Dong Chae Lee
- Department of Microbiology, College of Medicine, Chung-Ang University, Seoul 156-756, Korea. ; DOSIS M&M, Seoul 143-891, Korea
| | - Uy Dong Sohn
- Asia Pacific International School, Seoul 139-852, Korea
| | - Hyoung-Shik Shin
- Department of Periodontology, College of Dentistry, Wonkwang University, Iksan 570-749, Korea
| | - Wonyong Kim
- Department of Microbiology, College of Medicine, Chung-Ang University, Seoul 156-756, Korea
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Sohrabi SM, Niazi A, Chahardoli M, Hortamani A, Setoodeh P. In silico investigation of lactoferrin protein characterizations for the prediction of anti-microbial properties. Mol Biol Res Commun 2014; 3:85-100. [PMID: 27843978 PMCID: PMC5047140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Lactoferrin (Lf) is an iron-binding multi-functional glycoprotein which has numerous physiological functions such as iron transportation, anti-microbial activity and immune response. In this study, different in silico approaches were exploited to investigate Lf protein properties in a number of mammalian species. Results showed that the iron-binding site, DNA and RNA-binding sites, signal peptides and transferrin motifs in the Lf structure were highly conserved. Examined sequences showed three conserved motifs which were repeated twice in the Lf structure, demonstrating ancient duplication events in its gene. Also, results suggest that the functional domains in mammalian Lf proteins are Zinc finger, Tubulin/FtsZ, GTPase, α/β hydrolase and Zinc knuckle. The potential site for nucleic acid binding and the major DNA and RNA- binding sites in this protein were found in the lactoferricin (Lfc) fragment. Due to its high positive charge, Lf is able to bind a large number of compounds. Our analysis also revealed that the interactions between Lf and ITLN1, LYZ, CSN2, and CD14 proteins played an important role in the protective activities of Lf. Analysis for the prediction of secondary structures indicated that high amounts of α-helix, β-strand and β-sheet were present in Lf. The high degree of conservation among mammalian Lf proteins indicates that there is a close relationship between these proteins, reflecting their important role.
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Affiliation(s)
| | - Ali Niazi
- Institute of Biotechnology, Shiraz University, Shiraz, Iran,Address for correspondence Institute of Biotechnology, University of Shiraz, Shiraz, IR Iran, Tel: +98-7112272805, E-mail:
| | | | - Ali Hortamani
- Institute of Biotechnology, Shiraz University, Shiraz, Iran
| | - Payam Setoodeh
- Institute of Biotechnology, Shiraz University, Shiraz, Iran,School of Petroleum and Chemical Engineering, Shiraz University, Shiraz, Iran
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