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Awad MA, Hammad SF, El-Mashtoly SF, El-Deeb B, Soliman HSM. Phytochemical and biological assessment of secondary metabolites isolated from a rhizosphere strain, Sphingomonas sanguinis DM of Datura metel. BMC Complement Med Ther 2024; 24:205. [PMID: 38796482 PMCID: PMC11128111 DOI: 10.1186/s12906-024-04482-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 04/24/2024] [Indexed: 05/28/2024] Open
Abstract
BACKGROUND The plant roots excrete a large number of organic compounds into the soil. The rhizosphere, a thin soil zone around the roots, is a hotspot for microbial activity, making it a crucial component of the soil ecosystem. Secondary metabolites produced by rhizospheric Sphingomonas sanguinis DM have sparked significant curiosity in investigating their possible biological impacts. METHODS A bacterial strain has been isolated from the rhizosphere of Datura metel. The bacterium's identification, fermentation, and working up have been outlined. The ethyl acetate fraction of the propagated culture media of Sphingomonas sanguinis DM was fractioned and purified using various chromatographic techniques. The characterization of the isolated compounds was accomplished through the utilization of various spectroscopic techniques, such as UV, MS, 1D, and 2D-NMR. Furthermore, the evaluation of their antimicrobial activity was conducted using the agar well diffusion method, while cytotoxicity was assessed using the MTT test. RESULTS The extract from Sphingomonas sanguinis DM provided two distinct compounds: n-dibutyl phthalic acid (1) and Bis (2-methyl heptyl) phthalate (2) within its ethyl acetate fraction. Furthermore, the 16S rRNA gene sequence of Sphingomonas sanguinis DM has been registered under the NCBI GenBank database with the accession number PP422198. The bacterial extract exhibited its effect against gram-positive bacteria, inhibiting Streptococcus mutans (12.6 ± 0.6 mm) and Staphylococcus aureus (10.6 ± 0.6 mm) compared to standard antibiotics. Conversely, compound 1 showed a considerable effect against phytopathogenic fungi such as Alternaria alternate (56.3 ± 10.6 mm) and Fusarium oxysporum (21.3 ± 1.5 mm) with a MIC value of 17.5 µg/mL. However, it was slightly active against Klebsiella pneumonia (11.0 ± 1.0 mm). Furthermore, compound 2 was the most active metabolite, having a significant antimicrobial efficacy against Rhizoctonia solani (63.6 ± 1.1 mm), Pseudomonas aeruginosa (16.7 ± 0.6 mm), and Alternaria alternate (20.3 ± 0.6 mm) with MIC value at 15 µg/mL. In addition, compound 2 exhibited the most potency against hepatocellular (HepG-2) and skin (A-431) carcinoma cell lines with IC50 values of 107.16 µg/mL and 111.36 µg/mL, respectively. CONCLUSION Sphingomonas sanguinis DM, a rhizosphere bacterium of Datura metel, was studied for its phytochemical and biological characteristics, resulting in the identification of two compounds with moderate antimicrobial and cytotoxic activities.
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Affiliation(s)
- Mohamed A Awad
- Biotechnology Program, Institute of Basic and Applied Science, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Alexandria, 21934, Egypt
- Botany and Microbiology Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Sherif F Hammad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Helwan University, Helwan, Cairo, Egypt
- PharmD Program, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Samir F El-Mashtoly
- Biotechnology Program, Institute of Basic and Applied Science, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Bahig El-Deeb
- Botany and Microbiology Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Hesham S M Soliman
- Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, Helwan, Cairo, Egypt.
- PharmD Program, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Alexandria, 21934, Egypt.
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Jeong GJ, Khan F, Tabassum N, Cho KJ, Kim YM. Marine-derived bioactive materials as antibiofilm and antivirulence agents. Trends Biotechnol 2024:S0167-7799(24)00090-8. [PMID: 38637243 DOI: 10.1016/j.tibtech.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/20/2024]
Abstract
Microbial infections are major human health issues, and, recently, the mortality rate owing to bacterial and fungal infections has been increasing. In addition to intrinsic and extrinsic antimicrobial resistance mechanisms, biofilm formation is a key adaptive resistance mechanism. Several bioactive compounds from marine organisms have been identified for use in biofilm therapy owing to their structural complexity, biocompatibility, and economic viability. In this review, we discuss recent trends in the application of marine natural compounds, marine-bioinspired nanomaterials, and marine polymer conjugates as possible therapeutic agents for controlling biofilms and virulence factors. We also comprehensively discuss the mechanisms underlying biofilm formation and inhibition of virulence factors by marine-derived materials and propose possible applications of novel and effective antibiofilm and antivirulence agents.
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Affiliation(s)
- Geum-Jae Jeong
- Department of Food Science and Technology, Pukyong National University, Busan 48513, Republic of Korea; Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea; Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea
| | - Fazlurrahman Khan
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea; Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea; Institute of Fisheries Science, Pukyong National University, Busan 48513, Republic of Korea.
| | - Nazia Tabassum
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea; Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea
| | - Kyung-Jin Cho
- Department of Food Science and Technology, Pukyong National University, Busan 48513, Republic of Korea; Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea; Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea
| | - Young-Mog Kim
- Department of Food Science and Technology, Pukyong National University, Busan 48513, Republic of Korea; Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea; Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea.
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Chen YH, Zhu Q, Li J, Yang R, Zhang J, You M, Luo L, Yang B. Optimization of Fermentation Process for New Anti-Inflammatory Glycosylceramide Metabolite from Aspergillus sp. Metabolites 2024; 14:99. [PMID: 38392991 PMCID: PMC10890386 DOI: 10.3390/metabo14020099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/19/2024] [Accepted: 01/28/2024] [Indexed: 02/25/2024] Open
Abstract
A novel ceramide compound, named Aspercerebroside A (AcA), was successfully isolated from the ethyl acetate layer of the marine symbiotic fungus Aspergillus sp. AcA exhibited notable anti-inflammatory activity by effectively inhibiting the production of nitric oxide (NO) in RAW 264.7 cells at concentrations of 30 μg/mL and 40 μg/mL, offering a promising avenue for the treatment of inflammatory diseases. To optimize the yield of glycosylceramide (AcA), a series of techniques, including single-factor experiments, orthogonal experiments, and response surface optimization, were systematically employed to fine-tune the composition of the fermentation medium. Initially, the optimal carbon source (sucrose), nitrogen source (yeast extract powder), and the most suitable medium salinity (14 ppt) were identified through single-factor experiments. Subsequently, orthogonal experiments, employing an orthogonal table for planning and analyzing multifactor experiments, were conducted. Finally, a mathematical model, established using a Box-Behnken design, comprehensively analyzed the interactions between the various factors to determine the optimal composition of the fermentation medium. According to the model's prediction, when the sucrose concentration was set at 37.47 g/L, yeast extract powder concentration at 19.66 g/L, and medium salinity at 13.31 ppt, the predicted concentration of glycosylceramide was 171.084 μg/mL. The experimental results confirmed the model's accuracy, with the actual average concentration of glycosylceramide under these conditions measured at 171.670 μg/mL, aligning closely with the predicted value.
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Affiliation(s)
- Yung-Husan Chen
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Qiaoqiao Zhu
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Jingyi Li
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Rong Yang
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Jingwen Zhang
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Minxin You
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Lianzhong Luo
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Bingye Yang
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
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Hamouda RA, Alharthi MA, Alotaibi AS, Alenzi AM, Albalawi DA, Makharita RR. Biogenic Nanoparticles Silver and Copper and Their Composites Derived from Marine Alga Ulva lactuca: Insight into the Characterizations, Antibacterial Activity, and Anti-Biofilm Formation. Molecules 2023; 28:6324. [PMID: 37687153 PMCID: PMC10489668 DOI: 10.3390/molecules28176324] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/23/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Bacterial pathogens cause pain and death, add significantly to the expense of healthcare globally, and pose a serious concern in many aspects of daily life. Additionally, they raise significant issues in other industries, including pharmaceuticals, clothing, and food packaging. Due to their unique properties, a great deal of attention has been given to biogenic metal nanoparticles, nanocomposites, and their applications against pathogenic bacteria. This study is focused on biogenic silver and copper nanoparticles and their composites (UL/Ag2 O-NPS, Ul/CuO-NPs, and Ul/Ag/Cu-NCMs) produced by the marine green alga Ulva lactuca. The characterization of biogenic nanoparticles UL/Ag2 O-NPS and Ul/CuO-NPs and their composites Ul/Ag/Cu-NCMs has been accomplished by FT-IR, SEM, TEM, EDS, XRD, and the zeta potential. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) experiments were conducted to prove antibacterial activity against both Gram-positive and Gram-negative bacteria and anti-biofilm. The FTIR spectroscopy results indicate the exiting band at 1633 cm-1, which represents N-H stretching in nanocomposites, with a small shift in both copper and silver nanoparticles, which is responsible for the bio-reduction of nanoparticles. The TEM image reveals that the Ul/Ag/Cu-NCMs were hexagonal, and the size distribution ranged from 10 to 35 nm. Meanwhile, Ul/CuO-NPs are rod-shaped, whereas UL/Ag2 O-NPS are spherical. The EDX analysis shows that Cu metal was present in a high weight percentage over Ag in the case of bio-Ag/Cu-NCMs. The X-ray diffraction denotes that Ul/Ag/Cu-NCMs, UL/CuO-NPs, and UL/Ag2 O-NPS were crystalline. The results predicted by the zeta potential demonstrate that Ul/Ag/Cu-NCMs were more stable than Ul/CuO-NPs. The antibacterial activity of UL/Ag2 O-NPS, Ul/Ag/Cu-NCMs, and UL/CuO-NPs was studied against eleven Gram-negative and Gram-positive multidrug-resistant bacterial species. The maximum inhibition zones were obtained with UL/Ag2 O-NPS, followed by Ul/Ag/Cu-NCMs and Ul/CuO-NPs in all the tested bacteria. The maximum anti-biofilm percentage formed by E. coli KY856933 was obtained with UL/Ag2 O-NPS. These findings suggest that the synthesized nanoparticles might be a great alternative for use as an antibacterial agent against different multidrug-resistant bacterial strains.
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Affiliation(s)
- Ragaa A. Hamouda
- Department of Biology, College of Sciences and Arts Khulais, University of Jeddah, Jeddah 21959, Saudi Arabia
- Department of Microbial Biotechnology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City 32897, Egypt
| | - Mada A. Alharthi
- Department of Biology, College of Sciences and Arts Khulais, University of Jeddah, Jeddah 21959, Saudi Arabia
| | - Amenah S. Alotaibi
- Genomic & Biotechnology Unit, Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Asma Massad Alenzi
- Genomic & Biotechnology Unit, Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Doha A. Albalawi
- Genomic & Biotechnology Unit, Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Rabab R. Makharita
- Department of Biology, College of Sciences and Arts Khulais, University of Jeddah, Jeddah 21959, Saudi Arabia
- Botany and Microbiology Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
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Hassan NH, El-Hawary SS, Emam M, Rabeh MA, Tantawy MA, Seif M, Abd-Elal RMA, Bringmann G, Abdelmohsen UR, Selim NM. Pectin Nanoparticle-Loaded Soft Coral Nephthea sp. Extract as In Situ Gel Enhances Chronic Wound Healing: In Vitro, In Vivo, and In Silico Studies. Pharmaceuticals (Basel) 2023; 16:957. [PMID: 37513869 PMCID: PMC10383585 DOI: 10.3390/ph16070957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/25/2023] [Accepted: 06/30/2023] [Indexed: 07/30/2023] Open
Abstract
This study shed light for the first time on the in vivo diabetic wound healing potential activity of natural marine soft coral polymeric nanoparticle in situ gel using an excision wound model. A Nephthea sp. methanol-methylene chloride extract loaded with pectin nanoparticles (LPNs) was created. For the preparation of in situ gel, ion-gelation techniques, the entrapment efficiency, the particle size, the polydispersity index, the zeta potential, the in-vitro drug release, and a transmission electron microscope were used and the best formula was selected. Using (UPLC-Q/TOF-MS), 27 secondary metabolites responsible for extract biological activity were identified. Isolation and identification of arachidic acid, oleic acid, nervonic acid, and bis-(2-ethylhexyl)-phthalate (DEHP) of Nephthea sp. was firstly reported here using NMR and mass spectral analyses. Moreover, LPN in situ gel has the best effects on regulating the proinflammatory cytokines (NF-κB, TNF-α, IL-6, and IL-1β) that were detected on days 7 and 15. The results were confirmed with an in vitro enzymatic inhibitory effect of the extract against glycogen synthase kinase (GSK-3) and matrix metalloproteinase-1 (MMP-1), with IC50 values of 0.178 ± 0.009 and 0.258 ± 0.011 µg/mL, respectively. The molecular docking study showed a free binding energy of -9.6 kcal/mol for chabrolosteroid E, with the highest binding affinity for the enzyme (GSK-3), while isogosterone B had -7.8 kcal/mol for the enzyme (MMP-1). A pharmacokinetics study for chabrolohydroxybenzoquinone F and isogosterone B was performed, and it predicted the mode of action of wound healing activity.
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Affiliation(s)
- Nevine H Hassan
- Pharmacognosy Department, Faculty of Pharmacy, Modern University for Technology and Information, Cairo 11571, Egypt
| | - Seham S El-Hawary
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Giza 11562, Egypt
| | - Mahmoud Emam
- Phytochemistry and Plant Systematics Department, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Mohamed A Rabeh
- Pharmacognosy Department, College of Pharmacy, King Khalid University, Abha 62514, Saudi Arabia
| | - Mohamed A Tantawy
- Hormones Department, Medical Research and Clinical Studies Institute, National Research Centre, Dokki, Cairo 12622, Egypt
- Stem Cells Lab Center of Excellence for Advanced Sciences, National Research Centre, Dokki, Cairo 12622, Egypt
- Center of Orthopaedics Research, and Translation Science (CORTS), Department of Orthopaedics and Rehabilitation, The Pennsylvania State University College of Medicine, State College, PA 16801, USA
| | - Mohamed Seif
- Toxicology and Food Contaminants Department, Food Industries and Nutrition Research Institute, National Research Centre, Giza 12622, Egypt
| | - Radwa M A Abd-Elal
- Pharmaceutics and Drug Manufacturing Department, Faculty of Pharmacy, Modern University for Technology and Information, Cairo 11571, Egypt
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Usama Ramadan Abdelmohsen
- Pharmacognosy Department, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
- Pharmacognosy Department, Faculty of Pharmacy, Deraya University, New Minia 61111, Egypt
| | - Nabil M Selim
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Giza 11562, Egypt
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Soliman MKY, Salem SS, Abu-Elghait M, Azab MS. Biosynthesis of Silver and Gold Nanoparticles and Their Efficacy Towards Antibacterial, Antibiofilm, Cytotoxicity, and Antioxidant Activities. Appl Biochem Biotechnol 2023; 195:1158-1183. [PMID: 36342621 PMCID: PMC9852169 DOI: 10.1007/s12010-022-04199-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2022] [Indexed: 11/09/2022]
Abstract
The World Health Organization (WHO) reports that the emergence of multidrug-resistant and the slow advent of novel and more potent antitumor and antimicrobial chemotherapeutics continue to be of the highest concern for human health. Additionally, the stability, low solubility, and negative effects of existing drugs make them ineffective. Studies into alternative tactics to tackle such tenacious diseases was sparked by anticancer and antibacterial. Silver (Ag) and gold (Au) nanoparticles (NPs) were created from Trichoderma saturnisporum, the much more productive fungal strain. Functional fungal extracellular enzymes and proteins carried out the activities of synthesis and capping of the generated nano-metals. Characterization was done on the obtained Ag-NPs and Au-NPs through UV-vis, FTIR, XRD, TEM, and SEM. Additionally, versus methicillin-sensitive Staphylococcus aureus (MSSA) and methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa, and Klebsiella pneumoniae, the antibacterial activities of Ag-NPs and Au-NPs were assessed. In particular, the Ag-NPs were more effective against pathogenic bacteria than Au-NPs. Furthermore, antibiofilm study that shown Au-NPs had activity more than Ag-NPs. Interestingly, applying the DPPH procedure, these noble metallic NPs had antioxidant activity, in which the IC50 for Ag-NPs and Au-NPs was 73.5 μg/mL and 190.0 μg/mL, respectively. According to the cytotoxicity evaluation results, the alteration in the cells was shown as loss of their typical shape, partial or complete loss of monolayer, granulation, shrinking, or cell rounding with IC50 for normal Vero cell were 693.68 μg/mL and 661.24 μg/mL, for Ag-NPs and Au-NPs, respectively. While IC50 for cancer cell (Mcf7) was 370.56 μg/mL and 394.79 μg/mL for Ag-NPs and Au-NPs, respectively. Ag-NPs and Au-NPs produced via green synthesis have the potential to be employed in the medical industry as beneficial nanocompounds.
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Affiliation(s)
- Mohamed K Y Soliman
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, 11884, Nasr City, Cairo, Egypt
| | - Salem S Salem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, 11884, Nasr City, Cairo, Egypt.
| | - Mohammed Abu-Elghait
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, 11884, Nasr City, Cairo, Egypt
| | - Mohamed Salah Azab
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, 11884, Nasr City, Cairo, Egypt
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Cao HY, Zhao JY, Yi C, Sun SF, Chen KL, Qin ZM, Liu YB. Undescribed meleagrin alkaloids from the endophytic fungus Penicillium commune. PHYTOCHEMISTRY 2022; 204:113441. [PMID: 36162460 DOI: 10.1016/j.phytochem.2022.113441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Six undescribed meleagrin analogues, isomeleagrin, meleagrin F, meleagrin G, methylmeleagrin G, isomethylmeleagrin G and meleagrin H, were isolated from the endophytic fungus Penicillium commune, which was obtained from the fresh leaves of a toxic medicinal plant, Tylophora ovata. The structures of these analogues were elucidated through extensive spectroscopic data analysis, and their absolute configurations were characterized by calculated electronic circular dichroism (ECD). Structurally, meleagrin F features an undescribed skeleton with an aniline moiety, which is linked to meleagrin through a C-C bond at C8-C26. Connecting N19-C3' through the C-N bond in meleagrin G, methylmeleagrin G, isomethylmeleagrin G and meleagrin H was rare for amino acid condensation. The cytotoxicity activity of these undescribed compounds was evaluated, and isomeleagrin exhibited a selective cytotoxicity activity against HGC27 cells with an IC50 value of 2.01 μM.
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Affiliation(s)
- Hai-Yan Cao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jing-Yi Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Cheng Yi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Sen-Feng Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Ke-Liang Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Zhi-Min Qin
- Medical School of Zhengzhou University, Zhengzhou, 450000, China
| | - Yun-Bao Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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Daphnia magna and Gammarus pulex, novel promising agents for biomedical and agricultural applications. Sci Rep 2022; 12:13690. [PMID: 35953507 PMCID: PMC9372163 DOI: 10.1038/s41598-022-17790-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 07/31/2022] [Indexed: 12/03/2022] Open
Abstract
Various studies have shown the importance of using different types of Zooplankton biomasses as an additional substance in the diet of fish. In addition, the drainage water of the fish cultures could be used in plant irrigation. In this study, biomasses of water flea Daphnia magna and Gammarus pulex collected and tested, for the first time, their effect against pathogenic microorganisms and on plant germination. The results showed significant antibacterial activity of D. magna and G. pulex against Staphylococcus aureus and Pseudomonas aeruginosa bacteria, as well as antifungal activity against Alternaria solani and Penicillium expansum, which gives the possibility to be used as biocontrol against these bacteria and plant pathogenic fungi. Furthermore, both animals showed positive activity in the germination rate of Vicia faba seed, reaching 83.0 ± 3.5 and 86.0 ± 3.8%, respectively. In conclusion, the biomasses of D. magna and G. pulex are promising and effective agents for their use in the medical field against some pathogenic microbes and as stimulators of plant growth.
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Khedr M, Khalil KMA, Kabary HA, Hamed AA, Badawy MSEM, Abu-Elghait M. Molecular docking and nucleotide sequencing of successive expressed recombinant fungal peroxidase gene in E.coli. J Genet Eng Biotechnol 2022; 20:94. [PMID: 35776246 PMCID: PMC9249955 DOI: 10.1186/s43141-022-00377-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 05/25/2022] [Indexed: 11/10/2022]
Abstract
Background Fungal peroxidases are oxidoreductases that utilize hydrogen peroxide to catalyze lignin biodegradation. Results PER-K (peroxidase synthesis codon gene) was transformed from Aspergillus niger strain AN512 deposited in the National Center for Biotechnology Information with the accession number OK323140 to Escherichia coli strain (BL21-T7 with YEp356R recombinant plasmid) via calcium chloride heat-shock method. The impact of four parameters (CaCl2 concentrations, centrifugation time, shaking speed, growth intensity) on the efficacy of the transformation process was evaluated. Furthermore, peroxidase production after optimization was assessed both qualitatively and quantitatively, as well as SDS-PAGE analysis. The optimum conditions for a successful transformation process were as follows: CaCl2 concentrations (50 mM), centrifugation time (20 min), shaking speed (200 rpm), and growth optical density (0.45). PCR and gel electrophoresis detect DNA bands with lengths 175, 179, and 211 bps corresponding to UA3, AmpR, and PER-K genes respectively besides partially sequencing the PER-K gene. Pyrogallol/hydrogen peroxide assay confirmed peroxidase production, and the activity of the enzyme was determined to be 3924 U/L. SDS-PAGE analysis also confirms peroxidase production illustrated by the appearance of a single peroxidase protein band after staining with Coomassie blue R-250. Conclusion A successful peroxidase-gene (PER-K) transformation from fungi to bacteria was performed correctly. The enzyme activity was screened, and partial sequencing of PER-K gene was analyzed successively. The protein 3D structure was generated via in silico homology modeling, and determination of binding sites and biological annotations of the constructed protein were carried out via COACH and COFACTOR based on the I-TASSER structure prediction. Supplementary Information The online version contains supplementary material available at 10.1186/s43141-022-00377-6.
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Affiliation(s)
- Mohamed Khedr
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, 11884 Nasr City, Cairo, Egypt
| | - Kamal M A Khalil
- Genetic Engineering and Biotechnology Division, Genetics and Cytology Department, National Research Centre, 33 El-Buhouth Street, Dokki, Cairo, 12622, Egypt
| | - Hoda A Kabary
- Agricultural Microbiology Department, National Research Centre, 33 El-Buhouth Street, Dokki, Cairo, 12622, Egypt
| | - Ahmed A Hamed
- Microbial Chemistry Department, National Research Centre, 33 El-Buhouth Street, Dokki, Cairo, 12622, Egypt
| | - Mona Shaban E M Badawy
- Department of Microbiology and Immunology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Mohammed Abu-Elghait
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, 11884 Nasr City, Cairo, Egypt.
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Deep-Sea Natural Products from Extreme Environments: Cold Seeps and Hydrothermal Vents. Mar Drugs 2022; 20:md20060404. [PMID: 35736207 PMCID: PMC9229347 DOI: 10.3390/md20060404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/08/2022] [Accepted: 06/14/2022] [Indexed: 12/28/2022] Open
Abstract
The deep sea has been proven to be a great treasure for structurally unique and biologically active natural products in the last two decades. Cold seeps and hydrothermal vents, as typical representatives of deep-sea extreme environments, have attracted more and more attention. This review mainly summarizes the natural products of marine animals, marine fungi, and marine bacteria derived from deep-sea cold seeps and hydrothermal vents as well as their biological activities. In general, there were 182 compounds reported, citing 132 references and covering the literature from the first report in 1984 up to March 2022. The sources of the compounds are represented by the genera Aspergillus sp., Penicillium sp., Streptomyces sp., and so on. It is worth mentioning that 90 of the 182 compounds are new and that almost 60% of the reported structures exhibited diverse bioactivities, which became attractive targets for relevant organic synthetic and biosynthetic studies.
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11
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Youssef DTA, Shaala LA, Almohammadi A, Elhady SS, Alzughaibi TA, Alshali KZ. Characterization of Bioactive Compounds from the Red Sea Tunicate-
Derived Fungus Penicillium commune DY004. LETT ORG CHEM 2022. [DOI: 10.2174/1570178618666210617112441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
As a part of our ongoing interest to identify bioactive microbial secondary metabolites,
the Red Sea tunicate derived Penicillium commune DY004 was investigated. A new dipeptide,
penicillizine A (1) together with cyclo(L-Pro-L-Phe) (2), meleagrin (3), α-cyclopiazonic acid (4)
and N-(4-hydroxyphenethyl)acetamide (5) was isolated from the ethyl acetate extract of the cultures
of the fungus. The structural determinations of 1-5 were supported by interpretation of their
one- and two-dimensional nuclear magnetic resonance (NMR) and mass spectrometry (MS) data.
In the evaluation of the compounds for their effects against three human tumorous cell lines, meleagrin
(3) and α-cyclopiazonic acid (4) displayed the highest and potent activity against HeLa,
U373 glioblastoma and MDA-MB-231 cell lines down up to 3.1 μg/mL. These results suggest
that marine fungi are a copious source of drug leads with therapeutic potential. Meleagrin and α-
cyclopiazonic acid could be used as potential scaffolds for the development of new and more effective
drug leads.
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Affiliation(s)
- Diaa T. A. Youssef
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Lamiaa A. Shaala
- Natural Products Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Ameen Almohammadi
- Department of Clinical Pharmacy,
Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sameh S. Elhady
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Torki A. Alzughaibi
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi
Arabia
| | - Khalid Z. Alshali
- Department of Medicine, Faculty of Medicine, King
Abdulaziz University, Jeddah 21589, Saudi Arabia
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12
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Engineering titanium-organic framework decorated silver molybdate and silver vanadate as antimicrobial, anticancer agents, and photo-induced hydroxylation reactions. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113572] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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13
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Li J, Zhuang CL. Natural Indole Alkaloids from Marine Fungi: Chemical Diversity and Biological Activities. PHARMACEUTICAL FRONTS 2021. [DOI: 10.1055/s-0041-1740050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
The indole scaffold is one of the most important heterocyclic ring systems for pharmaceutical development, and serves as an active moiety in several clinical drugs. Fungi derived from marine origin are more liable to produce novel indole-containing natural products due to their extreme living environments. The indole alkaloids from marine fungi have drawn considerable attention for their unique chemical structures and significant biological activities. This review attempts to provide a summary of the structural diversity of marine fungal indole alkaloids including prenylated indoles, diketopiperazine indoles, bisindoles or trisindoles, quinazoline-containing indoles, indole-diterpenoids, and other indoles, as well as their known biological activities, mainly focusing on cytotoxic, kinase inhibitory, antiinflammatory, antimicrobial, anti-insecticidal, and brine shrimp lethal effects. A total of 306 indole alkaloids from marine fungi have been summarized, covering the references published from 1995 to early 2021, expecting to be beneficial for drug discovery in the future.
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Affiliation(s)
- Jiao Li
- Clinical Medicine Scientific and Technical Innovation Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Chun-Lin Zhuang
- Department of Natural Product Chemistry, School of Pharmacy, The Second Military Medical University, Shanghai, People's Republic of China
- Department of Medicinal Chemistry, School of Pharmacy, Ningxia Medical University, Yinchuan, People's Republic of China
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14
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Chemical Diversity and Antimicrobial Potential of Cultivable Fungi from Deep-Sea Sediments of the Gulf of Mexico. Molecules 2021; 26:molecules26237328. [PMID: 34885908 PMCID: PMC8659086 DOI: 10.3390/molecules26237328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/24/2021] [Accepted: 11/28/2021] [Indexed: 11/17/2022] Open
Abstract
A collection of 29 cultivable fungal strains isolated from deep-sea sediments of the Gulf of Mexico were cultivated under the “one strain, many compounds” approach to explore their chemical diversity and antimicrobial potential. From the 87 extracts tested, over 50% showed antimicrobial activity, and the most active ones were those from cultures grown at 4 °C in darkness for 60 days (resembling deep-sea temperature). PCA analysis of the LC-MS data of all the extracts confirmed that culture temperature is the primary factor in the variation of the 4462 metabolite features, accounting for 21.3% of the variation. The bioactivity-guided and conventional chemical studies of selected fungal strains allowed the identification of several active and specialized metabolites. Finally, metabolomics analysis by GNPS molecular networking and manual dereplication revealed the biosynthetic potential of these species to produce interesting chemistry. This work uncovers the chemical and biological study of marine-derived fungal strains from deep-sea sediments of the Gulf of Mexico.
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15
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Alzahrani AY, Ammar YA, Salem MA, Abu-Elghait M, Ragab A. Design, synthesis, molecular modeling, and antimicrobial potential of novel 3-[(1H-pyrazol-3-yl)imino]indolin-2-one derivatives as DNA gyrase inhibitors. Arch Pharm (Weinheim) 2021; 355:e2100266. [PMID: 34747519 DOI: 10.1002/ardp.202100266] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 12/11/2022]
Abstract
A series of 3-[(1H-pyrazol-3-yl)imino]indolin-2-one derivatives were designed using the molecular hybridization method, characterized using different spectroscopic techniques, and evaluated for their in vitro antimicrobial activity. Most of the target compounds demonstrated good to moderate antimicrobial activity compared with ciprofloxacin and fluconazole. Four compounds (8b, 9a, 9c, and 10a) showed encouraging results, with minimal inhibitory concentration (MIC) values (53.45-258.32 µM) comparable to those of norfloxacin (100.31-200.63 µM) and ciprofloxacin (48.33-96.68 µM). Noticeably, the four derivatives revealed excellent bactericidal and fungicidal activities, except for the bacteriostatic potential of compounds 8b and 9a against Escherichia coli and Staphylococcus aureus, respectively. The time-killing kinetic study against S. aureus confirmed the efficacy of these derivatives. Furthermore, two of the four promising derivatives, 9a and 10a, could prevent the formation of biofilms of S. aureus without affecting the bacterial growth at low concentrations. A combination study with seven commercial antibiotics against the multidrug-resistant bacterium P. aeruginosa showed a notable reduction in the antibiotic MIC values, represented mainly through a synergistic or additive effect. The enzymatic assay implied that the most active derivatives had inhibition potency against DNA gyrase comparable to that of ciprofloxacin. Molecular docking and density functional theory calculations were performed to explore the binding mode and study the reactivity of the promising compounds.
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Affiliation(s)
- Abdullah Y Alzahrani
- Department of Chemistry, Faculty of Science and Arts, King Khalid University, Mohail, Assir, Saudi Arabia
| | - Yousry A Ammar
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
| | - Mohamed A Salem
- Department of Chemistry, Faculty of Science and Arts, King Khalid University, Mohail, Assir, Saudi Arabia.,Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
| | - Mohammed Abu-Elghait
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
| | - Ahmed Ragab
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
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16
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Mbaoji FN, Nweze JA, Yang L, Huang Y, Huang S, Onwuka AM, Peter IE, Mbaoji CC, Jiang M, Zhang Y, Pan L, Yang D. Novel Marine Secondary Metabolites Worthy of Development as Anticancer Agents: A Review. Molecules 2021; 26:molecules26195769. [PMID: 34641312 PMCID: PMC8510081 DOI: 10.3390/molecules26195769] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 11/16/2022] Open
Abstract
Secondary metabolites from marine sources have a wide range of biological activity. Marine natural products are promising candidates for lead pharmacological compounds to treat diseases that plague humans, including cancer. Cancer is a life-threatening disorder that has been difficult to overcome. It is a long-term illness that affects both young and old people. In recent years, significant attempts have been made to identify new anticancer drugs, as the existing drugs have been useless due to resistance of the malignant cells. Natural products derived from marine sources have been tested for their anticancer activity using a variety of cancer cell lines derived from humans and other sources, some of which have already been approved for clinical use, while some others are still being tested. These compounds can assault cancer cells via a variety of mechanisms, but certain cancer cells are resistant to them. As a result, the goal of this review was to look into the anticancer potential of marine natural products or their derivatives that were isolated from January 2019 to March 2020, in cancer cell lines, with a focus on the class and type of isolated compounds, source and location of isolation, cancer cell line type, and potency (IC50 values) of the isolated compounds that could be a guide for drug development.
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Affiliation(s)
- Florence Nwakaego Mbaoji
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China; (F.N.M.); (J.A.N.); (Y.H.); (S.H.)
- College of Life Science and Technology of Guangxi University, Nanning 530004, China
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka 410001, Enugu State, Nigeria; (A.M.O.); (I.E.P.); (C.C.M.)
| | - Justus Amuche Nweze
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China; (F.N.M.); (J.A.N.); (Y.H.); (S.H.)
- Department of Science Laboratory Technology, Faculty of Physical Sciences, University of Nigeria, Nsukka 410001, Enugu State, Nigeria
- Department of Ecosystem Biology, Faculty of Science, University of South Bohemia in Ceske Budejovice, 37005 Ceske Budejovice, Czech Republic
- Soil and Water Research Infrastructure, Biology Centre, Czech Academy of Sciences, 37005 Ceske Budejovice, Czech Republic
| | - Liyan Yang
- Guangxi Biomass Industrialization Engineering Institute, National Engineering Research Center of Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass, Guangxi Academy of Sciences, Nanning 530007, China;
| | - Yangbin Huang
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China; (F.N.M.); (J.A.N.); (Y.H.); (S.H.)
| | - Shushi Huang
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China; (F.N.M.); (J.A.N.); (Y.H.); (S.H.)
| | - Akachukwu Marytheresa Onwuka
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka 410001, Enugu State, Nigeria; (A.M.O.); (I.E.P.); (C.C.M.)
| | - Ikechukwu Emmanuel Peter
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka 410001, Enugu State, Nigeria; (A.M.O.); (I.E.P.); (C.C.M.)
| | - Cynthia Chioma Mbaoji
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka 410001, Enugu State, Nigeria; (A.M.O.); (I.E.P.); (C.C.M.)
| | - Mingguo Jiang
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, School of Marine Sciences and Biotechnology, Guangxi University for Nationalities, Nanning 530008, China;
| | - Yunkai Zhang
- College of Life Science and Technology of Guangxi University, Nanning 530004, China
- Correspondence: (Y.Z.); (L.P.); (D.Y.); Tel.: +86-771-2503980 (L.P.); +86-771-2536109 (D.Y.)
| | - Lixia Pan
- Guangxi Biomass Industrialization Engineering Institute, National Engineering Research Center of Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass, Guangxi Academy of Sciences, Nanning 530007, China;
- Correspondence: (Y.Z.); (L.P.); (D.Y.); Tel.: +86-771-2503980 (L.P.); +86-771-2536109 (D.Y.)
| | - Dengfeng Yang
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China; (F.N.M.); (J.A.N.); (Y.H.); (S.H.)
- Correspondence: (Y.Z.); (L.P.); (D.Y.); Tel.: +86-771-2503980 (L.P.); +86-771-2536109 (D.Y.)
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17
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Keeler E, Burgaud G, Teske A, Beaudoin D, Mehiri M, Dayras M, Cassand J, Edgcomb V. Deep-sea hydrothermal vent sediments reveal diverse fungi with antibacterial activities. FEMS Microbiol Ecol 2021; 97:6318858. [PMID: 34245561 DOI: 10.1093/femsec/fiab103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 07/08/2021] [Indexed: 12/18/2022] Open
Abstract
Relatively little is known about the diversity of fungi in deep-sea, hydrothermal sediments. Less thoroughly explored environments are likely untapped reservoirs of unique biodiversity with the potential to augment our current arsenal of microbial compounds with biomedical and/or industrial applications. In this study, we applied traditional culture-based methods to examine a subset of the morphological and phylogenetic diversity of filamentous fungi and yeasts present in 11 hydrothermally influenced sediment samples collected from eight sites on the seafloor of Guaymas Basin, Mexico. A total of 12 unique isolates affiliating with Ascomycota and Basidiomycota were obtained and taxonomically identified on the basis of morphological features and analyses of marker genes including actin, β-tubulin, small subunit ribosomal DNA (18S rRNA), internal transcribed spacer (ITS) and large subunit ribosomal DNA (26S rRNA) D1/D2 domain sequences (depending on taxon). A total of 11 isolates possess congeners previously detected in, or recovered from, deep-sea environments. A total of seven isolates exhibited antibacterial activity against human bacterial pathogens Staphylococcus aureus ATCC-35556 and/or Escherichia coli ATCC-25922. This first investigation suggests that hydrothermal environments may serve as promising reservoirs of much greater fungal diversity, some of which may produce biomedically useful metabolites.
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Affiliation(s)
- Emma Keeler
- Department of Geology and Geophysics, Woods Hole Oceanographic Institution, 220 McLean, Mail Stop 08, Woods Hole, MA 02543, USA
| | - Gaëtan Burgaud
- Laboratoire Universitaire de Biodiversité et Écologie Microbienne, ESIAB, Université de Brest, EA 3882, Technopôle Brest-Iroise, Plouzané, France
| | - Andreas Teske
- Department of Earth, Marine and Environmental Sciences, University of North Carolina at Chapel Hill, Murray Hall 3117B, Chapel Hill, NC 27599, USA
| | - David Beaudoin
- Department of Geology and Geophysics, Woods Hole Oceanographic Institution, 220 McLean, Mail Stop 08, Woods Hole, MA 02543, USA
| | - Mohamed Mehiri
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, Marine Natural Products Team, 06108 Nice, France
| | - Marie Dayras
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, Marine Natural Products Team, 06108 Nice, France
| | - Jacquelin Cassand
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, Marine Natural Products Team, 06108 Nice, France
| | - Virginia Edgcomb
- Department of Geology and Geophysics, Woods Hole Oceanographic Institution, 220 McLean, Mail Stop 08, Woods Hole, MA 02543, USA
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18
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Mohamed AA, Abu-Elghait M, Ahmed NE, Salem SS. Eco-friendly Mycogenic Synthesis of ZnO and CuO Nanoparticles for In Vitro Antibacterial, Antibiofilm, and Antifungal Applications. Biol Trace Elem Res 2021; 199:2788-2799. [PMID: 32895893 DOI: 10.1007/s12011-020-02369-4] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/01/2020] [Indexed: 11/30/2022]
Abstract
Mycogenic synthesis of medically applied zinc oxide (ZnO) and copper oxide (CuO) nanoparticles (NPs) were exploited using Penicillium chrysogenum. The biogenesis and capping processes of the produced nano-metals were conducted by functional fungal extracellular enzymes and proteins. The obtained ZnO-NPs and CuO-NPs were characterized. Also, the antibacterial activity and minimum inhibitory concentration (MIC) values of ZnO-NPs and CuO-NPs were determined. Also, antibiofilm and antifungal activities were investigated. Results have demonstrated the ability of the bio-secreted proteins to cape and reduce ZnO and CuO to hexagonal and spherical ZnO-NPs and CuO-NPs with particle size at 9.0-35.0 nm and 10.5-59.7 nm, respectively. Both ZnO-NPs and CuO-NPs showed high antimicrobial activities not only against Gram-positive and Gram-negative bacteria but also against some phytopathogenic fungal strains. Besides this, those NPs showed varied antibiofilm effects against different microorganisms. Quantitative and qualitative analyses indicated that CuO-NPs had an effective antibiofilm activity against Staphylococcus aureus and therefore can be applied in diverse medical devices. Thus, the mycogenic green synthesized ZnO-NPs and CuO-NPs have the potential as smart nano-materials to be used in the medical field to limit the spread of some pathogenic microbes.
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Affiliation(s)
- Asem A Mohamed
- Chemistry of Natural and Microbial Products Department, Pharmaceutical Industries Research Division, National Research Centre, Dokki, Giza, 12622, Egypt
| | - Mohammed Abu-Elghait
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Nehad E Ahmed
- Chemistry of Natural and Microbial Products Department, Pharmaceutical Industries Research Division, National Research Centre, Dokki, Giza, 12622, Egypt
| | - Salem S Salem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt.
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19
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Okba MM, El-Shiekh RA, Abu-Elghait M, Sobeh M, Ashour RMS. HPLC-PDA-ESI-MS/MS Profiling and Anti-Biofilm Potential of Eucalyptussideroxylon Flowers. Antibiotics (Basel) 2021; 10:761. [PMID: 34201471 PMCID: PMC8300825 DOI: 10.3390/antibiotics10070761] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 01/13/2023] Open
Abstract
The development of multidrug-resistant bacterial strains is a worldwide emerging problem that needs a global solution. Exploring new natural antibiofilm agents is one of the most important alternative therapies in combating bacterial infections. This study aimed at testing the antimicrobial potential of Eucalyptus sideroxylon flowers extract (ESFE) against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Candida albicans prior to testing the antibiofilm activity against S. aureus, P. aeruginosa and C. albicans. ESFE demonstrated antimicrobial activity and promising inhibition activity against methicillin-resistant S. aureus (MRSA) biofilm formation up to 95.9% (p < 0.05) at a concentration of 0.05 mg/mL and eradicated C. albicans biofilm formation up to 71.2% (p < 0.05) at a concentration of 0.7 mg/mL. LC-MS analysis allowed the tentative identification of eighty-three secondary metabolites: 21 phloroglucinol, 18 terpenes, 16 flavonoids, 7 oleuropeic acid derivatives, 7 ellagic acid derivatives, 6 gallic acid derivatives, 3 phenolic acids, 3 fatty acids and 2 miscellaneous. In conclusion, E. sideroxylon is a rich source of effective constituents that promote its valorization as a promising candidate in the management of multidrug-resistant bacterial infections.
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Affiliation(s)
- Mona M. Okba
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (M.M.O.); (R.A.E.-S.)
| | - Riham A. El-Shiekh
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (M.M.O.); (R.A.E.-S.)
| | - Mohammed Abu-Elghait
- Department of Botany and Microbiology, Faculty of Science, Al-azhar University, Cairo 11884, Egypt
| | - Mansour Sobeh
- AgroBioSciences Research Division, Mohammed VI Polytechnic University, Ben-Guerir 43150, Morocco;
| | - Rehab M. S. Ashour
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (M.M.O.); (R.A.E.-S.)
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20
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Mohamed AF, Abuamara TMM, Amer ME, Ei-Moselhy LE, Gomah TA, Matar ER, Shebl RI, Desouky SE, Abu-Elghait M. Genetic and Histopathological Alterations in Caco-2 and HuH-7 Cells Treated with Secondary Metabolites of Marine fungi. J Gastrointest Cancer 2021; 53:480-495. [PMID: 33974218 DOI: 10.1007/s12029-021-00640-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2021] [Indexed: 11/26/2022]
Abstract
The present work aimed to study the activity of naturally derived fungal secondary metabolites as anticancer agents concerning their cytotoxicity, apoptotic, genetic, and histopathological profile. It was noticed that Aspergillus terreus, Aspergillus flavus, and Aspergillus fumigatus induced variable toxic potential that was cell type, secondary metabolite type, and concentration dependent. Human colonic adenocarcinoma cells (Caco-2) showed less sensitivity than hepatocyte-derived cellular carcinoma cells (HuH-7), and in turn, the half-maximal inhibitory concentration (IC50) was variable. Also, the apoptotic potential of Aspergillus species-derived fungal secondary metabolites was proven via detection of up-regulated pro-apoptotic genes and down-regulation of anti-apoptotic genes. The expression level was cell type dependent. Concurrently, apoptotic profile was accompanied with cellular DNA accumulation at the G2/M phase, as well as an elevation in Pre-G1 phase but not during G0/G1 and S phases. Also, there were characteristic apoptotic features of treated cells presented as abnormal intra-nuclear eosinophilic structures, dead cells with mixed euchromatin and heterochromatin, ruptured cell membranes, apoptotic cells with irregular cellular and nuclear membranes, as well as peripheral chromatin condensation. It can be concluded that Aspergillus secondary metabolites are promising agents that can be used as supplementary agents to the currently applied anti-cancer drug regimen.
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Affiliation(s)
- Aly Fahmy Mohamed
- The International center for training and advanced researches (ICTAR -Egypt), Cairo, Egypt
| | - Tamer M M Abuamara
- Histology department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Mohamed E Amer
- Histology department, Faculty of medicine, Al-Azhar University, Damietta, Egypt
| | - Laila E Ei-Moselhy
- Histology department, Faculty of medicine (girls), Al-Azhar University, Damietta, Egypt
| | | | - Emadeldin R Matar
- Pathology Department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Rania Ibrahim Shebl
- Microbiology and Immunology Department, Faculty of Pharmacy, Ahram Canadian University, Cairo, Egypt
| | - Said E Desouky
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar Uniersity, 11847, Nasr City, Cairo, Egypt
| | - Mohammed Abu-Elghait
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar Uniersity, 11847, Nasr City, Cairo, Egypt.
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21
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Ecofriendly novel synthesis of tertiary composite based on cellulose and myco-synthesized selenium nanoparticles: Characterization, antibiofilm and biocompatibility. Int J Biol Macromol 2021; 175:294-303. [PMID: 33571585 DOI: 10.1016/j.ijbiomac.2021.02.040] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 01/29/2021] [Accepted: 02/04/2021] [Indexed: 02/06/2023]
Abstract
Microbial infections are considered common and dangerous for humans among other infections; therefore the synthesis of high efficacy antimicrobial and anti-biofilm composites is continuous to fight microbial resistance. In our study, a new and novel tertiary composite (TC) was synthesized, it composed of TEMPO cellulose (TOC), chitosan, starch, and myco-synthesized Se-NPs. Myco-synthesized Se-NPs and TC were fully characterized using UV, FT-IR, XRD, SEM with EDX, particle distribution, and mapping. The antimicrobial and anti-biofilm properties of selenium nanoparticles (Se-NPs) were effectively established for Pseudomonas aeruginosa and Staphylococcus aureus biofilms. The possible impact of myco-synthesized novel cellulose-based selenium nanoparticles tertiary composite on the biofilm formation of P. aeruginosa, S. aureus, and Candida albicans was evaluated in this study. TC exhibited constant biofilm inhibition against P. aeruginosa, S. aureus, and C. albicans, while the results obtained from cytotoxicity of Se-NPs and TC showed that, alteration occurred in the normal cell line of lung fibroblast cells (Wi-38) was shown as loss of their typical cell shape, granulation, loss of monolayer, shrinking or rounding of Wi-38 cell with an IC50 value of where 461 and 550 ppm respectively.
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