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Wen Y, Zhao S, Yu Z, Gong W, Lu S, Li H, Wang J. Preparation of molecularly imprinted polymer for the specific adsorption and selective extraction of alkylresorcinols from whole wheat flour. Food Chem 2024; 454:139815. [PMID: 38820642 DOI: 10.1016/j.foodchem.2024.139815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/14/2024] [Accepted: 05/22/2024] [Indexed: 06/02/2024]
Abstract
Alkylresorcinols are important biomarkers for evaluating whole wheat foods. However, their structures encompass a broad spectrum of homologs, making isolating and analyzing individual alkylresorcinol notably challenging. Herein, we synthesized highly selective molecularly imprinted polymers (MIPs) utilizing a facile and cost-effective precipitation polymerization method and 5-heneicosylresorcinol (ARC21:0) as the template molecule. Various crucial preparation parameters were systematically optimized, such as different porogens, functional monomers, imprinting ratios, and polymerization time. The polymers were characterized through scanning electron microscopy and Fourier transform infrared spectroscopy, and their adsorption performances were thoroughly evaluated. MIPs exhibited a notably enhanced adsorption capacity compared with that of non-imprinted polymers, reaching an optimal adsorption amount of 71.75 mg·mL-1 and imprinting factor of 2.02. Altogether, the synthesized MIPs showed superior affinity and selectivity for ARC21:0, as confirmed by their selective extraction, suggesting their potential applications in the analysis, separation, and monitoring of ARC21:0 in whole wheat foods.
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Affiliation(s)
- Yangyang Wen
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Shichao Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Zhenjia Yu
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Weiwei Gong
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Shiyi Lu
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing, 100048, China
| | - Hongyan Li
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing, 100048, China.
| | - Jing Wang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing, 100048, China.
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2
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Liu Y, Qu Y, Liu C, Zhang D, Xu B, Wan Y, Jiang P. Neutrophil extracellular traps: Potential targets for the treatment of rheumatoid arthritis with traditional Chinese medicine and natural products. Phytother Res 2024. [PMID: 39105461 DOI: 10.1002/ptr.8311] [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: 02/27/2024] [Revised: 07/06/2024] [Accepted: 07/19/2024] [Indexed: 08/07/2024]
Abstract
Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease. Abnormal formation of neutrophil extracellular traps (NETs) at the synovial membrane leads to the release of many inflammatory cytokines, including IL-1β, IL-6, and TNF-α. Elastase, histone H3, and myeloperoxidase, which are carried by NETs, damage the soft tissues of the joints and aggravate the progression of RA. The balance of NET formation coordinates the pro-inflammatory and anti-inflammatory effects and plays a key role in the development of RA. Therefore, when NETs are used as effector targets, highly targeted drugs with fewer side effects can be developed to treat RA without damaging the host immune system. Currently, an increasing number of studies have shown that traditional Chinese medicines and natural products can regulate the formation of NETs through multiple pathways to counteract RA, which shows great potential for the treatment of RA and has a promising future for clinical application. In this article, we review the latest biological progress in understanding NET formation, the mechanism of NETs in RA, and the potential targets or pathways related to the modulation of NET formation by Chinese medicines and natural products. This review provides a relevant basis for the use of Chinese medicines and natural products as natural adjuvants in the treatment of RA.
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Affiliation(s)
- Yuan Liu
- The first Clinical Medical College, Shandong University of Chinese Traditional Medicine, Jinan, China
| | - Yuan Qu
- The first Clinical Medical College, Shandong University of Chinese Traditional Medicine, Jinan, China
| | - Chuanguo Liu
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Di Zhang
- Rheumatology and Immunology Department, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Bing Xu
- Rheumatology and Immunology Department, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yakun Wan
- School of Rehabilitation Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ping Jiang
- The first Clinical Medical College, Shandong University of Chinese Traditional Medicine, Jinan, China
- Rheumatology and Immunology Department, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Schuch JM, Mendes CR, Cardoso GL, André da Veiga Lima Rosa Costamilan C, Matos Lopes PR, Montagnolli RN, Dilarri G, Bidoia ED. Neem Essential Oil as an Antifungal Agent against Phyllosticta citricarpa. Int J Microbiol 2024; 2024:6251407. [PMID: 39071039 PMCID: PMC11281856 DOI: 10.1155/2024/6251407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 05/28/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
The fungus Phyllosticta citricarpa is a quarantine phytopathogen responsible for causing citrus black spot (CBS) disease. To export fruits to CBS-free countries, they must undergo a sanitation process to ensure disease control. In this study, neem essential oil (NEO) was tested against P. citricarpa for the first time as an alternative sanitizer. In vitro experiments were conducted to determine the inhibition concentration of NEO for P. citricarpa, and the mode of action of the essential oil was evaluated. In vivo assays were performed to simulate the sanitization process used in packinghouses. NEO was characterized by GC-MS/MS. The results revealed that NEO at 100 μL·mL-1 exhibited a similar inhibitory effect as copper oxychloride, suppressing 89.68 ± 1.14% of fungal mycelium growth. Fluorescence microscopy experiments demonstrated that NEO functions by disrupting the cytoplasmic membrane of fungal hyphae, leading to their death within 30 minutes of contact with NEO. GC-MS/MS characterization revealed a high presence of phenolic compounds, which serve as the primary antifungal agents responsible for the action against fungal hyphae. In vivo assays showed that NEO at 100 μL·mL-1 also reduced microorganisms (CFU mL-1) by 93.00 ± 3.88% compared to the negative control. Overall, the results demonstrate that NEO can effectively serve as an alternative sanitizer against P. citricarpa in citrus packinghouses. Our findings allow future studies to explore the use of NEO for sanitizing other fruits and combating different phytopathogens to broaden its potential application in fruit sanitation for export.
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Affiliation(s)
- Joyce Maria Schuch
- Department of General and Applied BiologySao Paulo State University (UNESP), Avenida 24-A 1515 Postal Code: 13506-900, Rio Claro, SP, Brazil
| | - Carolina Rosai Mendes
- Department of General and Applied BiologySao Paulo State University (UNESP), Avenida 24-A 1515 Postal Code: 13506-900, Rio Claro, SP, Brazil
| | - Guilherme Lopes Cardoso
- Department of Fisheries Engineering and Biological SciencesSanta Catarina State University (UDESC), Rua Coronel Fernandes Martins 270 Postal Code: 88790-000, Laguna, SC, Brazil
| | - Carlos André da Veiga Lima Rosa Costamilan
- Department of Fisheries Engineering and Biological SciencesSanta Catarina State University (UDESC), Rua Coronel Fernandes Martins 270 Postal Code: 88790-000, Laguna, SC, Brazil
| | - Paulo Renato Matos Lopes
- College of Technology and Agricultural SciencesSao Paulo State University (UNESP), SP-294 Km 651 Postal Code: 17900-000, Dracena, SP, Brazil
| | - Renato Nallin Montagnolli
- Department of Natural SciencesMathematics and EducationFederal University of Sao Carlos (UFSCar), SP-330 Km 174 Postal Code: 13600-970, Araras, SP, Brazil
| | - Guilherme Dilarri
- Department of Fisheries Engineering and Biological SciencesSanta Catarina State University (UDESC), Rua Coronel Fernandes Martins 270 Postal Code: 88790-000, Laguna, SC, Brazil
- Multicentric Graduate Program in Biochemistry and Molecular Biology (PMBqBM)Santa Catarina State University (UDESC), Avenida Luiz de Camões 2090 Postal Code: 88520-000, Lages, SC, Brazil
| | - Ederio Dino Bidoia
- Department of General and Applied BiologySao Paulo State University (UNESP), Avenida 24-A 1515 Postal Code: 13506-900, Rio Claro, SP, Brazil
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Wu J, Chen Y, Xu Y, An Y, Hu Z, Xiong A, Wang G. Effects of Jasmonic Acid on Stress Response and Quality Formation in Vegetable Crops and Their Underlying Molecular Mechanisms. PLANTS (BASEL, SWITZERLAND) 2024; 13:1557. [PMID: 38891365 PMCID: PMC11175075 DOI: 10.3390/plants13111557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/27/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024]
Abstract
The plant hormone jasmonic acid plays an important role in plant growth and development, participating in many physiological processes, such as plant disease resistance, stress resistance, organ development, root growth, and flowering. With the improvement in living standards, people have higher requirements regarding the quality of vegetables. However, during the growth process of vegetables, they are often attacked by pests and diseases and undergo abiotic stresses, resulting in their growth restriction and decreases in their yield and quality. Therefore, people have found many ways to regulate the growth and quality of vegetable crops. In recent years, in addition to the role that JA plays in stress response and resistance, it has been found to have a regulatory effect on crop quality. Therefore, this study aims to review the jasmonic acid accumulation patterns during various physiological processes and its potential role in vegetable development and quality formation, as well as the underlying molecular mechanisms. The information provided in this manuscript sheds new light on the improvements in vegetable yield and quality.
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Affiliation(s)
- Jiaqi Wu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China; (J.W.); (Y.C.); (Y.X.); (Y.A.); (Z.H.)
| | - Yangyang Chen
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China; (J.W.); (Y.C.); (Y.X.); (Y.A.); (Z.H.)
| | - Yujie Xu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China; (J.W.); (Y.C.); (Y.X.); (Y.A.); (Z.H.)
| | - Yahong An
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China; (J.W.); (Y.C.); (Y.X.); (Y.A.); (Z.H.)
| | - Zhenzhu Hu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China; (J.W.); (Y.C.); (Y.X.); (Y.A.); (Z.H.)
- Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, Huaian 223003, China
| | - Aisheng Xiong
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Guanglong Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China; (J.W.); (Y.C.); (Y.X.); (Y.A.); (Z.H.)
- Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, Huaian 223003, China
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Marvella JI, Kim HK. Synthesis of New Multifunctional Linolenic Acid Vanillyl Ester and Investigation of Antioxidant and Antibacterial Activities. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04945-z. [PMID: 38647998 DOI: 10.1007/s12010-024-04945-z] [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] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Vanillyl alcohol (VA) possesses potent antioxidant activity, yet its applicability is hindered by its limited solubility in emulsions or non-polar organic solvents. Conversely, long-chain polyunsaturated fatty acids exhibit antibacterial properties. The combination of these compounds offers the prospect of developing novel phenolic lipid compounds with dual antioxidant and antibacterial activities, alongside enhanced solubility capabilities. In this investigation, linolenic acid vanillyl ester (LAVE) was synthesized from VA and linseed oil (LO) through a transesterification reaction employing immobilized lipase. Optimization of LAVE production was achieved by varying reaction temperature, substrate concentration, and reaction time. LAVE demonstrated efficacy in scavenging both 2,2-diphenyl-1-picryhydrazyl and 2,2'-azino-bis (3-ethylbenthiazoline-6-sulphonic acid) radicals in organic solvents. Antioxidant testing via lipid oxidation analysis revealed that LAVE, when distributed within emulsions, effectively impeded the formation of conjugated dienes and conjugated trienes. Furthermore, LAVE exhibited antibacterial activity against four strains of spoilage bacteria: Bacillus subtilis, Bacillus coagulans, Pseudomonas fluorescens, and Alcaligenes faecalis. Zeta potential analysis substantiated the binding of LAVE to the bacterial cell surface. Propidium iodide uptake assay and fluorescence microscopy further elucidated that LAVE induces cell lysis by augmenting membrane permeability.
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Affiliation(s)
- Jennifer Indra Marvella
- Division of Biotechnology, the Catholic University of Korea, Bucheon, 420-743, Republic of Korea
- Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jalan Jenderal Sudirman 51, Jakarta Selatan, 12930, Indonesia
| | - Hyung Kwoun Kim
- Division of Biotechnology, the Catholic University of Korea, Bucheon, 420-743, Republic of Korea.
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Thapa BB, Huo C, Budhathoki R, Chaudhary P, Joshi S, Poudel PB, Magar RT, Parajuli N, Kim KH, Sohng JK. Metabolic Comparison and Molecular Networking of Antimicrobials in Streptomyces Species. Int J Mol Sci 2024; 25:4193. [PMID: 38673777 PMCID: PMC11050201 DOI: 10.3390/ijms25084193] [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: 02/15/2024] [Revised: 04/03/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
Streptomyces are well-known for producing bioactive secondary metabolites, with numerous antimicrobials essential to fight against infectious diseases. Globally, multidrug-resistant (MDR) microorganisms significantly challenge human and veterinary diseases. To tackle this issue, there is an urgent need for alternative antimicrobials. In the search for potent agents, we have isolated four Streptomyces species PC1, BT1, BT2, and BT3 from soils collected from various geographical regions of the Himalayan country Nepal, which were then identified based on morphology and 16S rRNA gene sequencing. The relationship of soil microbes with different Streptomyces species has been shown in phylogenetic trees. Antimicrobial potency of isolates was carried out against Staphylococcus aureus American Type Culture Collection (ATCC) 43300, Shigella sonnei ATCC 25931, Salmonella typhi ATCC 14028, Klebsiella pneumoniae ATCC 700603, and Escherichia coli ATCC 25922. Among them, Streptomyces species PC1 showed the highest zone of inhibition against tested pathogens. Furthermore, ethyl acetate extracts of shake flask fermentation of these Streptomyces strains were subjected to liquid chromatography-tandem mass spectrometric (LC-MS/MS) analysis for their metabolic comparison and Global Natural Products Social Molecular Networking (GNPS) web-based molecular networking. We found very similar metabolite composition in four strains, despite their geographical variation. In addition, we have identified thirty-seven metabolites using LC-MS/MS analysis, with the majority belonging to the diketopiperazine class. Among these, to the best of our knowledge, four metabolites, namely cyclo-(Ile-Ser), 2-n-hexyl-5-n-propylresorcinol, 3-[(6-methylpyrazin-2-yl) methyl]-1H-indole, and cyclo-(d-Leu-l-Trp), were detected for the first time in Streptomyces species. Besides these, other 23 metabolites including surfactin B, surfactin C, surfactin D, and valinomycin were identified with the help of GNPS-based molecular networking.
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Affiliation(s)
- Bijaya Bahadur Thapa
- Central Department of Chemistry, Tribhuvan University, Kirtipur 44618, Kathmandu, Nepal; (B.B.T.); (R.B.); (P.C.); (S.J.); (N.P.)
| | - Chen Huo
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea;
| | - Rabin Budhathoki
- Central Department of Chemistry, Tribhuvan University, Kirtipur 44618, Kathmandu, Nepal; (B.B.T.); (R.B.); (P.C.); (S.J.); (N.P.)
| | - Pratiksha Chaudhary
- Central Department of Chemistry, Tribhuvan University, Kirtipur 44618, Kathmandu, Nepal; (B.B.T.); (R.B.); (P.C.); (S.J.); (N.P.)
| | - Soniya Joshi
- Central Department of Chemistry, Tribhuvan University, Kirtipur 44618, Kathmandu, Nepal; (B.B.T.); (R.B.); (P.C.); (S.J.); (N.P.)
| | - Purna Bahadur Poudel
- Institute of Biomolecule Reconstruction (iBR), Department of Life Science and Biochemical Engineering, Sun Moon University, Asan 31460, Republic of Korea; (P.B.P.); (R.T.M.)
| | - Rubin Thapa Magar
- Institute of Biomolecule Reconstruction (iBR), Department of Life Science and Biochemical Engineering, Sun Moon University, Asan 31460, Republic of Korea; (P.B.P.); (R.T.M.)
| | - Niranjan Parajuli
- Central Department of Chemistry, Tribhuvan University, Kirtipur 44618, Kathmandu, Nepal; (B.B.T.); (R.B.); (P.C.); (S.J.); (N.P.)
- Institute of Biomolecule Reconstruction (iBR), Department of Life Science and Biochemical Engineering, Sun Moon University, Asan 31460, Republic of Korea; (P.B.P.); (R.T.M.)
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea;
| | - Jae Kyung Sohng
- Institute of Biomolecule Reconstruction (iBR), Department of Life Science and Biochemical Engineering, Sun Moon University, Asan 31460, Republic of Korea; (P.B.P.); (R.T.M.)
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Simpson AC, Sengupta P, Zhang F, Hameed A, Parker CW, Singh NK, Miliotis G, Rekha PD, Raman K, Mason CE, Venkateswaran K. Phylogenomics, phenotypic, and functional traits of five novel (Earth-derived) bacterial species isolated from the International Space Station and their prevalence in metagenomes. Sci Rep 2023; 13:19207. [PMID: 37932283 PMCID: PMC10628120 DOI: 10.1038/s41598-023-44172-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/04/2023] [Indexed: 11/08/2023] Open
Abstract
With the advent of long-term human habitation in space and on the moon, understanding how the built environment microbiome of space habitats differs from Earth habitats, and how microbes survive, proliferate and spread in space conditions, is becoming more important. The microbial tracking mission series has been monitoring the microbiome of the International Space Station (ISS) for almost a decade. During this mission series, six unique strains of Gram-stain-positive bacteria, including two spore-forming and three non-spore-forming species, were isolated from the environmental surfaces of the ISS. The analysis of their 16S rRNA gene sequences revealed > 99% similarities with previously described bacterial species. To further explore their phylogenetic affiliation, whole genome sequencing was undertaken. For all strains, the gyrB gene exhibited < 93% similarity with closely related species, which proved effective in categorizing these ISS strains as novel species. Average nucleotide identity and digital DNA-DNA hybridization values, when compared to any known bacterial species, were < 94% and <50% respectively for all species described here. Traditional biochemical tests, fatty acid profiling, polar lipid, and cell wall composition analyses were performed to generate phenotypic characterization of these ISS strains. A study of the shotgun metagenomic reads from the ISS samples, from which the novel species were isolated, showed that only 0.1% of the total reads mapped to the novel species, supporting the idea that these novel species are rare in the ISS environments. In-depth annotation of the genomes unveiled a variety of genes linked to amino acid and derivative synthesis, carbohydrate metabolism, cofactors, vitamins, prosthetic groups, pigments, and protein metabolism. Further analysis of these ISS-isolated organisms revealed that, on average, they contain 46 genes associated with virulence, disease, and defense. The main predicted functions of these genes are: conferring resistance to antibiotics and toxic compounds, and enabling invasion and intracellular resistance. After conducting antiSMASH analysis, it was found that there are roughly 16 cluster types across the six strains, including β-lactone and type III polyketide synthase (T3PKS) clusters. Based on these multi-faceted taxonomic methods, it was concluded that these six ISS strains represent five novel species, which we propose to name as follows: Arthrobacter burdickii IIF3SC-B10T (= NRRL B-65660T = DSM 115933T), Leifsonia virtsii F6_8S_P_1AT (= NRRL B-65661T = DSM 115931T), Leifsonia williamsii F6_8S_P_1BT (= NRRL B-65662T = DSM 115932T), Paenibacillus vandeheii F6_3S_P_1CT (= NRRL B-65663T = DSM 115940T), and Sporosarcina highlanderae F6_3S_P_2T (= NRRL B-65664T = DSM 115943T). Identifying and characterizing the genomes and phenotypes of novel microbes found in space habitats, like those explored in this study, is integral for expanding our genomic databases of space-relevant microbes. This approach offers the only reliable method to determine species composition, track microbial dispersion, and anticipate potential threats to human health from monitoring microbes on the surfaces and equipment within space habitats. By unraveling these microbial mysteries, we take a crucial step towards ensuring the safety and success of future space missions.
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Affiliation(s)
- Anna C Simpson
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - Pratyay Sengupta
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600 036, India
- Center for Integrative Biology and Systems mEdicine (IBSE), Indian Institute of Technology Madras, Chennai, 600 036, India
- Robert Bosch Centre for Data Science and Artificial Intelligence (RBCDSAI), Indian Institute of Technology Madras, Chennai, 600 036, India
| | - Flora Zhang
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - Asif Hameed
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Ceth W Parker
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - Nitin K Singh
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - Georgios Miliotis
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland
| | - Punchappady D Rekha
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Karthik Raman
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600 036, India
- Center for Integrative Biology and Systems mEdicine (IBSE), Indian Institute of Technology Madras, Chennai, 600 036, India
- Robert Bosch Centre for Data Science and Artificial Intelligence (RBCDSAI), Indian Institute of Technology Madras, Chennai, 600 036, India
| | - Christopher E Mason
- Department of Physiology and Biophysics, and the WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA.
| | - Kasthuri Venkateswaran
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
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8
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Bei Q, Reitz T, Schnabel B, Eisenhauer N, Schädler M, Buscot F, Heintz-Buschart A. Extreme summers impact cropland and grassland soil microbiomes. THE ISME JOURNAL 2023; 17:1589-1600. [PMID: 37419993 PMCID: PMC10504347 DOI: 10.1038/s41396-023-01470-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 06/20/2023] [Accepted: 06/23/2023] [Indexed: 07/09/2023]
Abstract
The increasing frequency of extreme weather events highlights the need to understand how soil microbiomes respond to such disturbances. Here, metagenomics was used to investigate the effects of future climate scenarios (+0.6 °C warming and altered precipitation) on soil microbiomes during the summers of 2014-2019. Unexpectedly, Central Europe experienced extreme heatwaves and droughts during 2018-2019, causing significant impacts on the structure, assembly, and function of soil microbiomes. Specifically, the relative abundance of Actinobacteria (bacteria), Eurotiales (fungi), and Vilmaviridae (viruses) was significantly increased in both cropland and grassland. The contribution of homogeneous selection to bacterial community assembly increased significantly from 40.0% in normal summers to 51.9% in extreme summers. Moreover, genes associated with microbial antioxidant (Ni-SOD), cell wall biosynthesis (glmSMU, murABCDEF), heat shock proteins (GroES/GroEL, Hsp40), and sporulation (spoIID, spoVK) were identified as potential contributors to drought-enriched taxa, and their expressions were confirmed by metatranscriptomics in 2022. The impact of extreme summers was further evident in the taxonomic profiles of 721 recovered metagenome-assembled genomes (MAGs). Annotation of contigs and MAGs suggested that Actinobacteria may have a competitive advantage in extreme summers due to the biosynthesis of geosmin and 2-methylisoborneol. Future climate scenarios caused a similar pattern of changes in microbial communities as extreme summers, but to a much lesser extent. Soil microbiomes in grassland showed greater resilience to climate change than those in cropland. Overall, this study provides a comprehensive framework for understanding the response of soil microbiomes to extreme summers.
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Affiliation(s)
- Qicheng Bei
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.
- Department of Soil Ecology, Helmholtz Centre for Environmental Research - UFZ, Halle (Saale), Germany.
| | - Thomas Reitz
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Department of Soil Ecology, Helmholtz Centre for Environmental Research - UFZ, Halle (Saale), Germany
| | - Beatrix Schnabel
- Department of Soil Ecology, Helmholtz Centre for Environmental Research - UFZ, Halle (Saale), Germany
| | - Nico Eisenhauer
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Biology, Leipzig University, Leipzig, Germany
| | - Martin Schädler
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Department of Community Ecology, Helmholtz Centre for Environmental Research - UFZ, Halle (Saale), Germany
| | - François Buscot
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Department of Soil Ecology, Helmholtz Centre for Environmental Research - UFZ, Halle (Saale), Germany
| | - Anna Heintz-Buschart
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands.
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9
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Novoskoltseva OA, Litmanovich EA, Loiko NG, Nikolaev YA, Yaroslavov AA. Biodegradable Water-Soluble Matrix for Immobilization of Biocidal 4-Hexylresorcinol. Int J Mol Sci 2023; 24:14717. [PMID: 37834163 PMCID: PMC10572309 DOI: 10.3390/ijms241914717] [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: 09/01/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Biocidal coatings have been used in biomedicine, cosmetology and the food industry. In this article, the coatings are described as being composed of non-stoichiometric polycomplexes, products of electrostatic coupling of two commercial biodegradable ionic polymers, anionic sodium alginate and cationic quaternized hydroxyethyl cellulose ethoxylate. Non-stoichiometric polycomplexes with a 5-fold excess of the cationic polymer were used for immobilizing hydrophobic biocidal 4-hexylresorcinol (HR). Being dispersed in water, the polycomplex particles were capable of absorbing a tenfold excess of HR in relation to the polycation. After deposition onto the plastic surface and drying, the aqueous polycomplex-HR composite formulation forms a transparent homogeneous coating, which swells slightly in water. The interpolyelectrolyte complex (IPEC) is substantially non-toxic. The incorporation of HR in the IPEC imparts antimicrobial activity to the resulting composite, in both aqueous solutions and coatings, against Gram-negative and Gram-positive bacteria and yeast. The polysaccharide-based polycomplexes with embedded HR are promising for the fabrication of biocidal films and coatings.
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Affiliation(s)
- Olga A. Novoskoltseva
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (O.A.N.); (E.A.L.)
| | - Ekaterina A. Litmanovich
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (O.A.N.); (E.A.L.)
| | - Nataliya G. Loiko
- Department of Microbiology, Federal Research Center “Fundamentals of Biotechnology” RAS, 119071 Moscow, Russia; (N.G.L.); (Y.A.N.)
| | - Yury A. Nikolaev
- Department of Microbiology, Federal Research Center “Fundamentals of Biotechnology” RAS, 119071 Moscow, Russia; (N.G.L.); (Y.A.N.)
| | - Alexander A. Yaroslavov
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (O.A.N.); (E.A.L.)
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Zabolotneva AA, Gaponov AM, Roumiantsev SA, Vasiliev IY, Grigoryeva TV, Kit OI, Zlatnik EY, Maksimov AY, Goncharova AS, Novikova IA, Appolonova SA, Markin PA, Shestopalov AV. Alkylresorcinols as New Modulators of the Metabolic Activity of the Gut Microbiota. Int J Mol Sci 2023; 24:14206. [PMID: 37762509 PMCID: PMC10532030 DOI: 10.3390/ijms241814206] [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: 07/18/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Alkylresorcinols (ARs) are polyphenolic compounds with a wide spectrum of biological activities and are potentially involved in the regulation of host metabolism. The present study aims to establish whether ARs can be produced by the human gut microbiota and to evaluate alterations in content in stool samples as well as metabolic activity of the gut microbiota of C57BL, db/db, and LDLR (-/-) mice according to diet specifications and olivetol (5-n-pentylresorcinol) supplementation to estimate the regulatory potential of ARs. Gas chromatography with mass spectrometric detection was used to quantitatively analyse AR levels in mouse stool samples; faecal microbiota transplantation (FMT) from human donors to germ-free mice was performed to determine whether the intestinal microbiota could produce AR molecules; metagenome sequencing analysis of the mouse gut microbiota followed by reconstruction of its metabolic activity was performed to investigate olivetol's regulatory potential. A significant increase in the amounts of individual members of AR homologues in stool samples was revealed 14 days after FMT. Supplementation of 5-n-Pentylresorcinol to a regular diet influences the amounts of several ARs in the stool of C57BL/6 and LDLR (-/-) but not db/db mice, and caused a significant change in the predicted metabolic activity of the intestinal microbiota of C57BL/6 and LDLR (-/-) but not db/db mice. For the first time, we have shown that several ARs can be produced by the intestinal microbiota. Taking into account the dependence of AR levels in the gut on olivetol supplementation and microbiota metabolic activity, AR can be assumed to be potential quorum-sensing molecules, which also influence gut microbiota composition and host metabolism.
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Affiliation(s)
- Anastasia A. Zabolotneva
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, N. I. Pirogov Russian National Research Medical University, 1 Ostrovitianov Str., Moscow 117997, Russia; (S.A.R.); (A.V.S.)
- Russian National Medical Research Center for Endocrinology, 11 Dm. Ulyanova Str., Moscow 117036, Russia
| | - Andrei M. Gaponov
- Center for Digital and Translational Biomedicine «Center for Molecular Health», 32 Nakhimovskiy prospekt, Moscow 117218, Russia
| | - Sergey A. Roumiantsev
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, N. I. Pirogov Russian National Research Medical University, 1 Ostrovitianov Str., Moscow 117997, Russia; (S.A.R.); (A.V.S.)
- Russian National Medical Research Center for Endocrinology, 11 Dm. Ulyanova Str., Moscow 117036, Russia
| | - Ilya Yu. Vasiliev
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia
| | - Tatiana V. Grigoryeva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia
| | - Oleg I. Kit
- National Medical Research Centre for Oncology, 14 Line, 63, Rostov-on-Don 344019, Russia (E.Y.Z.); (A.Y.M.); (A.S.G.); (I.A.N.)
| | - Elena Yu. Zlatnik
- National Medical Research Centre for Oncology, 14 Line, 63, Rostov-on-Don 344019, Russia (E.Y.Z.); (A.Y.M.); (A.S.G.); (I.A.N.)
| | - Aleksey Yu. Maksimov
- National Medical Research Centre for Oncology, 14 Line, 63, Rostov-on-Don 344019, Russia (E.Y.Z.); (A.Y.M.); (A.S.G.); (I.A.N.)
| | - Anna S. Goncharova
- National Medical Research Centre for Oncology, 14 Line, 63, Rostov-on-Don 344019, Russia (E.Y.Z.); (A.Y.M.); (A.S.G.); (I.A.N.)
| | - Inna A. Novikova
- National Medical Research Centre for Oncology, 14 Line, 63, Rostov-on-Don 344019, Russia (E.Y.Z.); (A.Y.M.); (A.S.G.); (I.A.N.)
| | - Svetlana A. Appolonova
- Laboratory of Pharmacokinetics and Metabolomic Analysis, Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, 2-4 Bolshaya Pirogovskaya St., Moscow 119991, Russia; (S.A.A.); (P.A.M.)
| | - Pavel A. Markin
- Laboratory of Pharmacokinetics and Metabolomic Analysis, Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, 2-4 Bolshaya Pirogovskaya St., Moscow 119991, Russia; (S.A.A.); (P.A.M.)
| | - Aleksandr V. Shestopalov
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, N. I. Pirogov Russian National Research Medical University, 1 Ostrovitianov Str., Moscow 117997, Russia; (S.A.R.); (A.V.S.)
- Russian National Medical Research Center for Endocrinology, 11 Dm. Ulyanova Str., Moscow 117036, Russia
- Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, 1 Samory Mashela Str., Moscow 117997, Russia
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Simpson AC, Sengupta P, Zhang F, Hameed A, Parker CW, Singh NK, Miliotis G, Rekha PD, Raman K, Mason CE, Venkateswaran K. Phylogenetic affiliations and genomic characterization of novel bacterial species and their abundance in the International Space Station. RESEARCH SQUARE 2023:rs.3.rs-3126314. [PMID: 37461605 PMCID: PMC10350232 DOI: 10.21203/rs.3.rs-3126314/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Background With the advent of long-term human habitation in space and on the moon, understanding how the built environment microbiome of space habitats differs from Earth habits, and how microbes survive, proliferate and spread in space conditions, is coming more and more important. The Microbial Tracking mission series has been monitoring the microbiome of the International Space Station (ISS) for almost a decade. During this mission series, six unique strains of Gram-positive bacteria, including two spore-forming and three non-spore-forming species, were isolated from the environmental surfaces of the International Space Station (ISS). Results The analysis of their 16S rRNA gene sequences revealed <99% similarities with previously described bacterial species. To further explore their phylogenetic affiliation, whole genome sequencing (WGS) was undertaken. For all strains, the gyrB gene exhibited <93% similarity with closely related species, which proved effective in categorizing these ISS strains as novel species. Average ucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values, when compared to any known bacterial species, were less than <94% and 50% respectively for all species described here. Traditional biochemical tests, fatty acid profiling, polar lipid, and cell wall composition analyses were performed to generate phenotypic characterization of these ISS strains. A study of the shotgun metagenomic reads from the ISS samples, from which the novel species were isolated, showed that only 0.1% of the total reads mapped to the novel species, supporting the idea that these novel species are rare in the ISS environments. In-depth annotation of the genomes unveiled a variety of genes linked to amino acid and derivative synthesis, carbohydrate metabolism, cofactors, vitamins, prosthetic groups, pigments, and protein metabolism. Further analysis of these ISS-isolated organisms revealed that, on average, they contain 46 genes associated with virulence, disease, and defense. The main predicted functions of these genes are: conferring resistance to antibiotics and toxic compounds, and enabling invasion and intracellular resistance. After conducting antiSMASH analysis, it was found that there are roughly 16 cluster types across the six strains, including β-lactone and type III polyketide synthase (T3PKS) clusters. Conclusions Based on these multi-faceted taxonomic methods, it was concluded that these six ISS strains represent five novel species, which we propose to name as follows: Arthrobacter burdickii IIF3SC-B10T (=NRRL B-65660T), Leifsonia virtsii, F6_8S_P_1AT (=NRRL B-65661T), Leifsonia williamsii, F6_8S_P_1BT (=NRRL B- 65662T and DSMZ 115932T), Paenibacillus vandeheii, F6_3S_P_1CT(=NRRL B-65663T and DSMZ 115940T), and Sporosarcina highlanderae F6_3S_P_2 T(=NRRL B-65664T and DSMZ 115943T). Identifying and characterizing the genomes and phenotypes of novel microbes found in space habitats, like those explored in this study, is integral for expanding our genomic databases of space-relevant microbes. This approach offers the only reliable method to determine species composition, track microbial dispersion, and anticipate potential threats to human health from monitoring microbes on the surfaces and equipment within space habitats. By unraveling these microbial mysteries, we take a crucial step towards ensuring the safety and success of future space missions.
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Affiliation(s)
- Anna C. Simpson
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
| | - Pratyay Sengupta
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600 036, India
- Center for Integrative Biology and Systems mEdicine (IBSE), Indian Institute of Technology Madras, Chennai, 600 036, India
- Robert Bosch Centre for Data Science and Artificial Intelligence (RBCDSAI), Indian Institute of Technology Madras, Chennai, 600 036, India
| | - Flora Zhang
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
| | - Asif Hameed
- Yenepoya Research Centre, Yenepoya Deemed to be University, Mangalore 575018, India
| | - Ceth W. Parker
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
| | - Nitin K. Singh
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
| | - Georgios Miliotis
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland
| | - Punchappady D. Rekha
- Yenepoya Research Centre, Yenepoya Deemed to be University, Mangalore 575018, India
| | - Karthik Raman
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600 036, India
- Center for Integrative Biology and Systems mEdicine (IBSE), Indian Institute of Technology Madras, Chennai, 600 036, India
- Robert Bosch Centre for Data Science and Artificial Intelligence (RBCDSAI), Indian Institute of Technology Madras, Chennai, 600 036, India
| | - Christopher E. Mason
- Department of Physiology and Biophysics, and the WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, United States
| | - Kasthuri Venkateswaran
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
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Electrospun Polycaprolactone/Chitosan Nanofibers Containing Cordia myxa Fruit Extract as Potential Biocompatible Antibacterial Wound Dressings. Molecules 2023; 28:molecules28062501. [PMID: 36985473 PMCID: PMC10059813 DOI: 10.3390/molecules28062501] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/07/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023] Open
Abstract
The goal of the current work was to create an antibacterial agent by using polycaprolactone/chitosan (PCL/CH) nanofibers loaded with Cordia myxa fruit extract (CMFE) as an antimicrobial agent for wound dressing. Several characteristics, including morphological, physicomechanical, and mechanical characteristics, surface wettability, antibacterial activity, cell viability, and in vitro drug release, were investigated. The inclusion of CMFE in PCL/CH led to increased swelling capability and maximum weight loss. The SEM images of the PCL/CH/CMFE mat showed a uniform topology free of beads and an average fiber diameter of 195.378 nm. Excellent antimicrobial activity was shown towards Escherichia coli (31.34 ± 0.42 mm), Salmonella enterica (30.27 ± 0.57 mm), Staphylococcus aureus (21.31 ± 0.17 mm), Bacillus subtilis (27.53 ± 1.53 mm), and Pseudomonas aeruginosa (22.17 ± 0.12 mm) based on the inhibition zone assay. The sample containing 5 wt% CMFE had a lower water contact angle (47 ± 3.7°), high porosity, and high swelling compared to the neat mat. The release of the 5% CMFE-loaded mat was proven to be based on anomalous non-Fickian diffusion using the Korsmeyer–Peppas model. Compared to the pure PCL membrane, the PCL-CH/CMFE membrane exhibited suitable cytocompatibility on L929 cells. In conclusion, the fabricated antimicrobial nanofibrous films demonstrated high bioavailability, with suitable properties that can be used in wound dressings.
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Diversity of Bacterial Secondary Metabolite Biosynthetic Gene Clusters in Three Vietnamese Sponges. Mar Drugs 2022; 21:md21010029. [PMID: 36662202 PMCID: PMC9864124 DOI: 10.3390/md21010029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022] Open
Abstract
Recent reviews have reinforced sponge-associated bacteria as a valuable source of structurally diverse secondary metabolites with potent biological properties, which makes these microbial communities promising sources of new drug candidates. However, the overall diversity of secondary metabolite biosynthetic potential present in bacteria is difficult to access due to the fact that the majority of bacteria are not readily cultured in the laboratory. Thus, use of cultivation-independent approaches may allow accessing "silent" and "cryptic" secondary metabolite biosynthetic gene clusters present in bacteria that cannot yet be cultured. In the present study, we investigated the diversity of secondary metabolite biosynthetic gene clusters (BGCs) in metagenomes of bacterial communities associated with three sponge species: Clathria reinwardti, Rhabdastrella globostellata, and Spheciospongia sp. The results reveal that the three metagenomes contain a high number of predicted BGCs, ranging from 282 to 463 BGCs per metagenome. The types of BGCs were diverse and represented 12 different cluster types. Clusters predicted to encode fatty acid synthases and polyketide synthases (PKS) were the most dominant BGC types, followed by clusters encoding synthesis of terpenes and bacteriocins. Based on BGC sequence similarity analysis, 363 gene cluster families (GCFs) were identified. Interestingly, no GCFs were assigned to pathways responsible for the production of known compounds, implying that the clusters detected might be responsible for production of several novel compounds. The KS gene sequences from PKS clusters were used to predict the taxonomic origin of the clusters involved. The KS sequences were related to 12 bacterial phyla with Actinobacteria, Proteobacteria, and Firmicutes as the most predominant. At the genus level, the KSs were most related to those found in the genera Mycolicibacterium, Mycobacterium, Burkholderia, and Streptomyces. Phylogenetic analysis of KS sequences resulted in detection of two known 'sponge-specific' BGCs, i.e., SupA and SwfA, as well as a new 'sponge-specific' cluster related to fatty acid synthesis in the phylum Candidatus Poribacteria and composed only by KS sequences of the three sponge-associated bacterial communities assessed here.
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Kolesnik OV, Rozhko TV, Kudryasheva NS. Marine Bacteria under Low-Intensity Radioactive Exposure: Model Experiments. Int J Mol Sci 2022; 24:ijms24010410. [PMID: 36613854 PMCID: PMC9820739 DOI: 10.3390/ijms24010410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/28/2022] Open
Abstract
Radioactive contaminants create problems all over world, involving marine ecosystems, with their ecological importance increasing in the future. The review focuses on bioeffects of a series of alpha and beta emitting radioisotopes (americium-241, uranium-(235 + 238), thorium-232, and tritium) and gamma radiation. Low-intensity exposures are under special consideration. Great attention has been paid to luminous marine bacteria as representatives of marine microorganisms and a conventional bioassay system. This bioassay uses bacterial bioluminescence intensity as the main testing physiological parameter; currently, it is widely applied due to its simplicity and sensitivity. Dependences of the bacterial luminescence response on the exposure time and irradiation intensity were reviewed, and applicability of hormetic or threshold models was discussed. A number of aspects of molecular intracellular processes under exposure to low-intensity radiation were analyzed: (a) changes in the rates of enzymatic processes in bacteria with the bioluminescent system of coupled enzymatic reactions of NADH:FMN-oxidoreductase and bacterial luciferase taken as an example; (b) consumption of an intracellular reducer, NADH; (c) active role of reactive oxygen species; (d) repairing of the DNA damage. The results presented confirm the function of humic substances as natural radioprotectors.
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Affiliation(s)
- Olga V. Kolesnik
- Institute of Biophysics SB RAS, Federal Research Center ‘Krasnoyarsk Science Center SB RAS’, 660036 Krasnoyarsk, Russia
- Biophysics Department, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Tatiana V. Rozhko
- FSBEI HE V.F. Voino-Yasenetsky KrasSMU MOH, 660022 Krasnoyarsk, Russia
| | - Nadezhda S. Kudryasheva
- Institute of Biophysics SB RAS, Federal Research Center ‘Krasnoyarsk Science Center SB RAS’, 660036 Krasnoyarsk, Russia
- Biophysics Department, Siberian Federal University, 660041 Krasnoyarsk, Russia
- Correspondence:
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An Accurate Approach for Computational pKa Determination of Phenolic Compounds. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238590. [PMID: 36500683 PMCID: PMC9736058 DOI: 10.3390/molecules27238590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Computational chemistry is a valuable tool, as it allows for in silico prediction of key parameters of novel compounds, such as pKa. In the framework of computational pKa determination, the literature offers several approaches based on different level of theories, functionals and continuum solvation models. However, correction factors are often used to provide reliable models that adequately predict pKa. In this work, an accurate protocol based on a direct approach is proposed for computing phenols pKa. Importantly, this methodology does not require the use of correction factors or mathematical fitting, making it highly practical, easy to use and fast. Above all, DFT calculations performed in the presence two explicit water molecules using CAM-B3LYP functional with 6-311G+dp basis set and a solvation model based on density (SMD) led to accurate pKa values. In particular, calculations performed on a series of 13 differently substituted phenols provided reliable results, with a mean absolute error of 0.3. Furthermore, the model achieves accurate results with -CN and -NO2 substituents, which are usually excluded from computational pKa studies, enabling easy and reliable pKa determination in a wide range of phenols.
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Scott S, Cahoon EB, Busta L. Variation on a theme: the structures and biosynthesis of specialized fatty acid natural products in plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 111:954-965. [PMID: 35749584 PMCID: PMC9546235 DOI: 10.1111/tpj.15878] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
Plants are able to construct lineage-specific natural products from a wide array of their core metabolic pathways. Considerable progress has been made toward documenting and understanding, for example, phenylpropanoid natural products derived from phosphoenolpyruvate via the shikimate pathway, terpenoid compounds built using isopentyl pyrophosphate, and alkaloids generated by the extensive modification of amino acids. By comparison, natural products derived from fatty acids have received little attention, except for unusual fatty acids in seed oils and jasmonate-like oxylipins. However, scattered but numerous reports show that plants are able to generate many structurally diverse compounds from fatty acids, including some with highly elaborate and unique structural features that have novel bioproduct functionalities. Furthermore, although recent work has shed light on multiple new fatty acid natural product biosynthesis pathways and products in diverse plant species, these discoveries have not been reviewed. The aims of this work, therefore, are to (i) review and systematize our current knowledge of the structures and biosynthesis of fatty acid-derived natural products that are not seed oils or jasmonate-type oxylipins, specifically, polyacetylenic, very-long-chain, and aromatic fatty acid-derived natural products, and (ii) suggest priorities for future investigative steps that will bring our knowledge of fatty acid-derived natural products closer to the levels of knowledge that we have attained for other phytochemical classes.
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Affiliation(s)
- Samuel Scott
- Department of Chemistry and BiochemistryUniversity of Minnesota DuluthDuluth55812MNUSA
| | - Edgar B. Cahoon
- Department of BiochemistryUniversity of Nebraska LincolnLincoln68588NEUSA
- Center for Plant Science InnovationUniversity of Nebraska LincolnLincoln68588NEUSA
| | - Lucas Busta
- Department of Chemistry and BiochemistryUniversity of Minnesota DuluthDuluth55812MNUSA
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Pedro SI, Rosado T, Barroca C, Neiva D, Alonso-Herranz V, Gradillas A, García A, Gominho J, Gallardo E, Anjos O. Characterisation of the Phenolic Profile of Acacia retinodes and Acacia mearnsii Flowers' Extracts. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11111442. [PMID: 35684215 PMCID: PMC9182983 DOI: 10.3390/plants11111442] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 05/27/2023]
Abstract
Acacia spp. is an invasive species that is widespread throughout the Portuguese territory. Thus, it is pertinent to better understand this species in order to find different applications that will value its use. To evaluate the phenolic profile in Acacia flowers, ethanolic extracts obtained through an energized guided dispersive extraction were analysed, focusing on two species, Acacia retinodes and Acacia mearnsii, at two flowering stages. The phytochemical profile of each extract was determined by ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry and high-performance liquid chromatography coupled with diode array detector. The FTIR-ATR technique was used to distinguish the different samples’ compositions. The results showed the presence of high concentrations of phenolic compounds (>300 mg GAE/g extract), among which are flavonoids (>136 mg QE/g extract), for all combinations of species/flowering stages. The phytochemical profile showed a complex composition with 21 compounds identified and quantified (the predominant ones being epicatechin, rutin, vanillin, and catechol). Both species and flowering stages presented significant variations regarding the presence and quantity of phenols and flavonoids, so much so that a principal component analysis performed with FTIR-ATR spectra data of the extracts was able to discriminate between species and flowering stages.
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Affiliation(s)
- Soraia I. Pedro
- Centro de Biotecnologia de Plantas da Beira Interior, 6001-909 Castelo Branco, Portugal; (S.I.P.); (C.B.)
- Centro de Estudos Florestais (CEF), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal; (D.N.); (J.G.)
| | - Tiago Rosado
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, 6200-506 Covilhã, Portugal; (T.R.); (E.G.)
- Laboratório de Fármaco-Toxicologia—UBIMedical, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Celina Barroca
- Centro de Biotecnologia de Plantas da Beira Interior, 6001-909 Castelo Branco, Portugal; (S.I.P.); (C.B.)
- Centro de Estudos Florestais (CEF), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal; (D.N.); (J.G.)
- Instituto Politécnico de Castelo Branco, 6001-909 Castelo Branco, Portugal; (A.G.); (A.G.)
| | - Duarte Neiva
- Centro de Estudos Florestais (CEF), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal; (D.N.); (J.G.)
- Centro Ecologia Aplicada “Prof. Baeta Neves” (CEABN), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal
| | - Vanesa Alonso-Herranz
- (CEMBIO) Centro de Metabolómica y Bioanálisis, Facultad de Farmacia, Universidad San Pablo CEU, CEU Universities, Campus Monteprincipe, Boadilla del Monte, 28660 Madrid, Spain;
| | - Ana Gradillas
- Instituto Politécnico de Castelo Branco, 6001-909 Castelo Branco, Portugal; (A.G.); (A.G.)
| | - Antonia García
- Instituto Politécnico de Castelo Branco, 6001-909 Castelo Branco, Portugal; (A.G.); (A.G.)
| | - Jorge Gominho
- Centro de Estudos Florestais (CEF), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal; (D.N.); (J.G.)
| | - Eugenia Gallardo
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, 6200-506 Covilhã, Portugal; (T.R.); (E.G.)
- Laboratório de Fármaco-Toxicologia—UBIMedical, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Ofélia Anjos
- Centro de Biotecnologia de Plantas da Beira Interior, 6001-909 Castelo Branco, Portugal; (S.I.P.); (C.B.)
- Centro de Estudos Florestais (CEF), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal; (D.N.); (J.G.)
- Instituto Politécnico de Castelo Branco, 6001-909 Castelo Branco, Portugal; (A.G.); (A.G.)
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Sushko ES, Vnukova NG, Churilov GN, Kudryasheva NS. Endohedral Gd-Containing Fullerenol: Toxicity, Antioxidant Activity, and Regulation of Reactive Oxygen Species in Cellular and Enzymatic Systems. Int J Mol Sci 2022; 23:ijms23095152. [PMID: 35563539 PMCID: PMC9106034 DOI: 10.3390/ijms23095152] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/30/2022] [Accepted: 04/30/2022] [Indexed: 01/20/2023] Open
Abstract
The Gd-containing metallofullerene derivatives are perspective magnetic resonance imaging contrast agents. We studied the bioeffects of a water-soluble fullerene derivative, gadolinium-endohedral fullerenol, with 40−42 oxygen groups (Gd@Fln). Bioluminescent cellular and enzymatic assays were applied to monitor toxicity and antioxidant activity of Gd@Fln in model solutions; bioluminescence was applied as a signaling physiological parameter. The Gd@Fln inhibited bioluminescence at high concentrations (>2·10−1 gL−1), revealing lower toxicity as compared to the previously studied fullerenols. Efficient activation of bioluminescence (up to almost 100%) and consumption of reactive oxygen species (ROS) in bacterial suspension were observed under low-concentration exposure to Gd@Fln (10−3−2·10−1 gL−1). Antioxidant capability of Gd@Fln was studied under conditions of model oxidative stress (i.e., solutions of model organic and inorganic oxidizers); antioxidant coefficients of Gd@Fln were determined at different concentrations and times of exposure. Contents of ROS were evaluated and correlations with toxicity/antioxidant coefficients were determined. The bioeffects of Gd@Fln were explained by hydrophobic interactions, electron affinity, and disturbing of ROS balance in the bioluminescence systems. The results contribute to understanding the molecular mechanism of “hormetic” cellular responses. Advantages of the bioluminescence assays to compare bioeffects of fullerenols based on their structural characteristics were demonstrated.
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Affiliation(s)
- Ekaterina S. Sushko
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS, 660036 Krasnoyarsk, Russia;
- Institute of Physics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS, 660036 Krasnoyarsk, Russia; (N.G.V.); (G.N.C.)
- Correspondence: ; Tel.: +7-3912-494-242
| | - Natalia G. Vnukova
- Institute of Physics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS, 660036 Krasnoyarsk, Russia; (N.G.V.); (G.N.C.)
- Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Grigoriy N. Churilov
- Institute of Physics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS, 660036 Krasnoyarsk, Russia; (N.G.V.); (G.N.C.)
- Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Nadezhda S. Kudryasheva
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS, 660036 Krasnoyarsk, Russia;
- Siberian Federal University, 660041 Krasnoyarsk, Russia
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19
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Sahin C, Magomedova L, Ferreira TAM, Liu J, Tiefenbach J, Alves PS, Queiroz FJG, Oliveira ASD, Bhattacharyya M, Grouleff J, Nogueira PCN, Silveira ER, Moreira DC, Leite JRSDA, Brand GD, Uehling D, Poda G, Krause H, Cummins CL, Romeiro LAS. Phenolic Lipids Derived from Cashew Nut Shell Liquid to Treat Metabolic Diseases. J Med Chem 2022; 65:1961-1978. [PMID: 35089724 DOI: 10.1021/acs.jmedchem.1c01542] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Metabolic diseases are increasing at staggering rates globally. The peroxisome proliferator-activated receptors (PPARα/γ/δ) are fatty acid sensors that help mitigate imbalances between energy uptake and utilization. Herein, we report compounds derived from phenolic lipids present in cashew nut shell liquid (CNSL), an abundant waste byproduct, in an effort to create effective, accessible, and sustainable drugs. Derivatives of anacardic acid and cardanol were tested for PPAR activity in HEK293 cell co-transfection assays, primary hepatocytes, and 3T3-L1 adipocytes. In vivo studies using PPAR-expressing zebrafish embryos identified CNSL derivatives with varying tissue-specific activities. LDT409 (23) is an analogue of cardanol with partial agonist activity for PPARα and PPARγ. Pharmacokinetic profiling showed that 23 is orally bioavailable with a half-life of 4 h in mice. CNSL derivatives represent a sustainable source of selective PPAR modulators with balanced intermediate affinities (EC50 ∼ 100 nM to 10 μM) that provide distinct and favorable gene activation profiles for the treatment of diabetes and obesity.
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Affiliation(s)
- Cigdem Sahin
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Lilia Magomedova
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Thais A M Ferreira
- Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, DF 71910-900, Brazil
| | - Jiabao Liu
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Jens Tiefenbach
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Priscilla S Alves
- Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, DF 71910-900, Brazil
| | - Fellipe J G Queiroz
- Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, DF 71910-900, Brazil
| | - Andressa S de Oliveira
- Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, DF 71910-900, Brazil
| | - Mousumi Bhattacharyya
- Ontario Institute for Cancer Research, MaRS Centre, Toronto, Ontario M5G 0A3, Canada
| | - Julie Grouleff
- Ontario Institute for Cancer Research, MaRS Centre, Toronto, Ontario M5G 0A3, Canada
| | - Patrícia C N Nogueira
- CENAUREMN, Federal University of Ceará, Campus do Pici, Fortaleza, CE 60020-181, Brazil
| | - Edilberto R Silveira
- CENAUREMN, Federal University of Ceará, Campus do Pici, Fortaleza, CE 60020-181, Brazil
| | - Daniel C Moreira
- Faculty of Medicine, University of Brasilia, Brasilia, DF 71910-900, Brazil
| | | | - Guilherme D Brand
- Chemistry Institute, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília, DF 70910-900, Brazil
| | - David Uehling
- Ontario Institute for Cancer Research, MaRS Centre, Toronto, Ontario M5G 0A3, Canada
| | - Gennady Poda
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 3M2, Canada.,Ontario Institute for Cancer Research, MaRS Centre, Toronto, Ontario M5G 0A3, Canada
| | - Henry Krause
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Carolyn L Cummins
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Luiz A S Romeiro
- Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, DF 71910-900, Brazil
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20
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An Overview of Alkylresorcinols Biological Properties and Effects. J Nutr Metab 2022; 2022:4667607. [PMID: 35036005 PMCID: PMC8754669 DOI: 10.1155/2022/4667607] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/11/2021] [Accepted: 12/14/2021] [Indexed: 12/11/2022] Open
Abstract
The investigation of alkylresorcinols has drawn an increasing interest recently. Alkylresorcinols (ARs) are natural chemical compounds synthesized by bacteria, fungi, sponges, and higher plants, possessing a lipophilic polyphenol structures and a myriad of biological properties. Human takes ARs as a component of a whole grain diet (from whole grain rye, wheat, and barley products), and thus, alkylresorcinols are frequently used as whole grain intake markers. Besides, ARs are considered as promising bioregulators of metabolic and immune processes, as well as adjuvant therapeutic agents for antimicrobial and anticancer treatment. In this review, we attempted to systematize the accumulated information concerning ARs origin, metabolism, biological properties, and their effect on human health.
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21
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ELKENANY RM, ELTAYSH R, ELSAYED M, ABDEL-DAIM M, SHATA R. Characterization of multi-resistant <i>Shigella</i> species isolated from raw cow milk and milk products. J Vet Med Sci 2022; 84:890-897. [PMID: 35527016 PMCID: PMC9353095 DOI: 10.1292/jvms.22-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
This study was organized to investigate the prevalence, antibiotic and disinfectant resistance phenotypes and genotypes as well as plasmid profiles of Shigella species
isolated from raw cow milk and milk products in Egypt. Genotypic analysis was performed to determine the presence of β-lactamase encoding genes
(blaTEM, blaCTX-M, blaOXA-1 and blaSHV), tet(A) and
qacE∆. Forty-two (7%) Shigella isolates (S. dysenteriae, S. flexneri, and S. sonnei) were recovered, with S. dysenteriae
as the predominant type. Antibiotic sensitivity tests showed that 71.4% of Shigella isolates were resistant to three or more antibiotic classes (multidrug-resistant). High
resistance rates were observed against tetracyclines (100%), ampicillin, amoxicillin-clavulanate (90.5%, each) and cefaclor (66.7%), while no resistance was detected against imipenem,
sulfamethoxazole/trimethoprim, and azithromycin. Disinfectant susceptibility test of Shigella isolates revealed resistance to phenolic compound (vanillic acid), while 85.7%
of the Shigella isolates were resistant to benzalkonium chloride. Uniplex PCR analysis declared the existence of β-lactamase encoding genes
(blaTEM in all isolates and blaCTX-M in 28.6% of isolates) and, tet(A) in all isolates and 85.7% of the isolates
were positive for qacE∆1, while all isolates were negative for blaOXA-1 and blaSHV. All Shigella
extended spectrum β-lactamases (ESBL) producers (12, 100%) were positive for the blaTEM, blaCTX-M, and qacE∆1 genes.
Furthermore, plasmid profiling revealed seven distinct plasmid patterns (P1–P7), ranging from 1.26 to 33.61 kb, among all the Shigella strains; S.
dysenteriae exhibited the greatest variance. The co-transfer of β-lactamase genes (blaTEM and blaCTX-M) and
qacE∆1 genes was observed by conjugation from all ESBL producers to a recipient strain. These findings indicate the emergence of Shigella species in Egypt
that exhibited multi-resistance to either antibiotics (particularly ESBL producer strains) or disinfectants. Thus, the resistance of Shigella species should regularly be
monitored and appropriate measures should be taken to manage this problem.
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Affiliation(s)
- Rasha M. ELKENANY
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Mansoura University
| | - Rasha ELTAYSH
- Department of Pharmacology, Faculty of Veterinary Medicine, Mansoura University
| | - Mona ELSAYED
- Department of Hygiene and Zoonoses, Faculty of Veterinary Medicine, Mansoura University
| | | | - Radwa SHATA
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Mansoura University
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22
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Gandra JR, Valle TAD, Takiya CS, Freitas Jr. JE, Oliveira ERD, Gandra ERDS, Pedrini CA, Mendes PVC. Effects of ricinoleic acid from castor oil and cashew nutshell liquid on nutrient digestibility and ruminal fermentation in dairy heifers. REVISTA BRASILEIRA DE SAÚDE E PRODUÇÃO ANIMAL 2022. [DOI: 10.1590/s1519-994021442022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
ABSTRACT This study aimed to evaluate the effects of combining functional oils (FO) [ricinoleic acid (RA) and cashew nutshell liquid (CNSL)] on nutrient intake and total-tract apparent digestibility, ruminal fermentation, nitrogen utilization, and predicted rumen microbial protein (Pmic) in heifers. Twelve Jersey heifers (14±0.6 months and 264±18.7 kg BW) were assigned to a 4 × 4 Latin square experiment with the following treatments: Control (CON), diet without feed additives; Ricinoleic acid, dietary inclusion of RA at 2 g kg-1 dry matter (DM); Cashew nutshell liquid, dietary inclusion of CNSL at 2 g kg-1 DM; and a mixture of 1 g kg-1 DM of RA and 1 g kg-1 DM of CNSL (RA+CNSL). Heifers were allowed 14 d for treatment adaptation followed by 5 days of sampling. Total feces collection was performed to determine digestibility. Rumen fluid was collected to determine short-chain fatty acids (SCFA) concentration. Urine samples were collected for nitrogen and purine derivatives analyses. Feeding RA decreased intake of DM, but increased crude protein (CP) digestibility and ruminal acetate concentration. Feeding CSNL increased NDF digestibility and lowered Pmic. The association of RA+CNSL increased neutral detergent fiber (NDF) digestibility and ruminal concentration of total SCFA without affecting DM intake. Feeding RA treatment decreased N intake and N excreted in feces and urine. CNSL group had the highest values of N balance. Heifers fed RA had lower Pmic than CNSL and RA+CNSL. The association of RA+CNSL improved digestibility of fiber and increased ruminal concentration of SCFA without altering N balance and Pmic.
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23
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Souza NDO, Cunha DA, Rodrigues NDS, Pereira AL, Medeiros EJT, Pinheiro ADA, de Vasconcelos MA, do Nascimento Neto LG, Bezerra TT, Mazzetto SE, Lomonaco D, Teixeira EH, Saboia VDPA. Cashew nut shell liquids: Antimicrobial compounds in prevention and control of the oral biofilms. Arch Oral Biol 2021; 133:105299. [PMID: 34735926 DOI: 10.1016/j.archoralbio.2021.105299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/23/2021] [Accepted: 10/24/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The aim was to evaluate the antibacterial and antibiofilm activity of natural (n-CNSL) and technical (t-CNSL) cashew nut shell liquid against streptococci and enterococci related to dental caries and chronic apical periodontitis, respectively. MATERIAL AND METHODS Minimum inhibitory concentrations (MIC) and minimal bactericidal concentration (MBC) were determined to assess the antimicrobial effect of both CNSLs (n-CSNL and t-CNSL) against S. oralis ATCC 10557, S. sobrinus ATCC 6715, S. parasanguinis ATCC 903, S. mutans UA 159 and E. faecalis ATCC 19433. The antibiofilm activity was evaluated by total biomass quantification, colony forming unit (CFU) counting and scanning electron microscopy (SEM). Furthermore, cytotoxic effect of the substances was evaluated on L929 and HaCat cell lines by MTS assay. RESULTS The n-CNSL and t-CNSL showed inhibitory and bactericidal effect against all strains tested in this study, with MIC and MBC values ranging from 1.5 to 25 μg/mL. Overall, both CNSLs showed significant reduction in biomass quantification and enumeration of biofilm-entrapped cells for the strains analyzed, in biofilm formation and preformed biofilms (p < 0.05). In biofilm inhibition assay, the t-CNSL and n-CNSL showed reduction in biomass and CFU number for all bacteria, except in cell viability of S. parasanguinis treated with t-CNSL (p > 0.05). Indeed, SEM images showed a reduction in the amount of biomass, bacterial cells and changes in cellular morphology of S. mutans. CONCLUSION In conclusion, both substances showed effective antibacterial and antibiofilm activity against the strains used in the study, except in viability of S. parasanguinis cells treated with t-CNSL.
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Affiliation(s)
- Nayara de Oliveira Souza
- Department of Restorative Dentistry, Federal University of Ceará, 949 Alexandre Baraúna St, Fortaleza, CE 60430-160, Brazil
| | - Diana Araújo Cunha
- Department of Restorative Dentistry, Federal University of Ceará, 949 Alexandre Baraúna St, Fortaleza, CE 60430-160, Brazil
| | - Nara de Sousa Rodrigues
- Department of Restorative Dentistry, University of Fortaleza, 1321 Washington Soares Ave., Fortaleza, CE 60811-905, Brazil
| | - Anna Luísa Pereira
- Department of Pathology and Forensic Medicine, Integrated Laboratory of Biomolecules, Federal University of Ceará, 100 Five St., Fortaleza, CE 60355-636, Brazil
| | - Elizabeth Jordanya Teixeira Medeiros
- Department of Pathology and Forensic Medicine, Integrated Laboratory of Biomolecules, Federal University of Ceará, 100 Five St., Fortaleza, CE 60355-636, Brazil
| | - Aryane de Azevedo Pinheiro
- Department of Pathology and Forensic Medicine, Integrated Laboratory of Biomolecules, Federal University of Ceará, 100 Five St., Fortaleza, CE 60355-636, Brazil
| | - Mayron Alves de Vasconcelos
- Department of Pathology and Forensic Medicine, Integrated Laboratory of Biomolecules, Federal University of Ceará, 100 Five St., Fortaleza, CE 60355-636, Brazil; Minas Gerais State University, Divinópolis, MG 35501-179, Brazil
| | - Luiz Gonzaga do Nascimento Neto
- Departamento do Núcleo Comum, Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Campus Limoeiro do Norte, Limoeiro do Norte, CE 62930-000, Brazil
| | - Thayllan Teixeira Bezerra
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, 100 Five St., Fortaleza, CE 60355-636, Brazil
| | - Selma Elaine Mazzetto
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, 100 Five St., Fortaleza, CE 60355-636, Brazil
| | - Diego Lomonaco
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, 100 Five St., Fortaleza, CE 60355-636, Brazil
| | - Edson Holanda Teixeira
- Department of Pathology and Forensic Medicine, Integrated Laboratory of Biomolecules, Federal University of Ceará, 100 Five St., Fortaleza, CE 60355-636, Brazil.
| | - Vicente de Paulo Aragão Saboia
- Department of Restorative Dentistry, Federal University of Ceará, 949 Alexandre Baraúna St, Fortaleza, CE 60430-160, Brazil
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24
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Efimenko TA, Shanenko EF, Mukhamedzhanova TG, Efremenkova OV, Nikolayev YA, Bilanenko EN, Gernet MV, Grishin AG, Serykh IN, Shevelev SV, Vasilyeva BF, Filippova SN, El-Registan GI. Eurotium Cristatum Postfermentation of Fireweed and Apple Tree Leaf Herbal Teas. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2021; 2021:6691428. [PMID: 34631875 PMCID: PMC8500772 DOI: 10.1155/2021/6691428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 08/11/2021] [Accepted: 08/28/2021] [Indexed: 11/17/2022]
Abstract
Fungi Eurotium spp. are the main biological agents that ferment the leaves of the Camellia sinensis tea bush to form a popular food product, postfermented tea. The fungus E. cristatum, stored in the collection of the Gause Institute of New Antibiotics under the number INA 01267, was isolated and identified from a briquette of Fujian Chinese tea. The species identification was carried out based on morphocultural characteristics and DNA sequencing. This study is aimed at determining the feasibility of making postfermented herbal teas using E. cristatum and to evaluate their quality. Autofermented herbal teas from Chamaenerion angustifolium (fireweed) and Malus domestica (apple tree) served as the starting material for this study. The change in the concentration of phenolic compounds, organic acids, sugars, and free amino acids was observed for herbal teas subjected to postfermentation with E. cristatum INA 01267. It was found that the E. cristatum INA 01267 strain does not have antimicrobial activity and does not form mycotoxins, which is an indicator of food safety.
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Affiliation(s)
| | | | | | | | - Yuriy A. Nikolayev
- Research Center of Biotechnology RAS, Winogradsky Institute of Microbiology, Moscow 117312, Russia
| | - Elena N. Bilanenko
- Lomonosov Moscow State University, Faculty of Biology, Moscow 119991, Russia
| | - Marina V. Gernet
- V.M. Gorbatov Federal Research Center of Food Systems RAS, All-Russian Research Institute of Brewing, Nonalcoholic and Wine Industry, Moscow 109316, Russia
| | - Artem G. Grishin
- Moscow State University of Food Production, Moscow 125080, Russia
| | - Ivan N. Serykh
- Moscow State University of Food Production, Moscow 125080, Russia
- LLC “Sistema”, Moscow 115230, Russia
| | | | | | - Svetlana N. Filippova
- Research Center of Biotechnology RAS, Winogradsky Institute of Microbiology, Moscow 117312, Russia
| | - Galina I. El-Registan
- Research Center of Biotechnology RAS, Winogradsky Institute of Microbiology, Moscow 117312, Russia
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25
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Tatipamula VB, Kukavica B. Phenolic compounds as antidiabetic, anti-inflammatory, and anticancer agents and improvement of their bioavailability by liposomes. Cell Biochem Funct 2021; 39:926-944. [PMID: 34498277 DOI: 10.1002/cbf.3667] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 08/15/2021] [Accepted: 08/21/2021] [Indexed: 12/20/2022]
Abstract
Phenolic compounds, widespread in plants, are a necessary part of the human regimen due to their antioxidant and pro-oxidative properties. Naturally, phenolics structurally range from a very simple phenolic molecule moiety to an intricate polymer. For decades, phenolic compounds have gained pronounced attention because of their protective effects against degenerative disorders such as inflammation, diabetes and cancer. Physico-chemical properties (eg, solubility) restricted their bioactivity and also limited their usage as nutraceutical ingredients. However, encapsulation technology like liposomal formulations has been developed for the delivery of phenolic compounds without affecting their original aesthetic and organoleptic property. Hence, this review outlines the antioxidant and pro-oxidative properties of phenolic compounds and focuses on biological activity reports of flavonoids and phenolic acids as antidiabetic, anti-inflammatory and anticancer agents. Also, the delivery applications of phenolic compounds as liposomes are discussed with few examples.
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Affiliation(s)
- Vinay Bharadwaj Tatipamula
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.,Faculty of Pharmacy, Duy Tan University, Da Nang, Vietnam
| | - Biljana Kukavica
- Faculty of Natural Sciences and Mathematics, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
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26
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Uliassi E, de Oliveira AS, de Camargo Nascente L, Romeiro LAS, Bolognesi ML. Cashew Nut Shell Liquid (CNSL) as a Source of Drugs for Alzheimer's Disease. Molecules 2021; 26:5441. [PMID: 34576912 PMCID: PMC8466601 DOI: 10.3390/molecules26185441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/24/2021] [Accepted: 08/30/2021] [Indexed: 12/18/2022] Open
Abstract
Alzheimer's disease (AD) is a complex neurodegenerative disorder with a multifaceted pathogenesis. This fact has long halted the development of effective anti-AD drugs. Recently, a therapeutic strategy based on the exploitation of Brazilian biodiversity was set with the aim of discovering new disease-modifying and safe drugs for AD. In this review, we will illustrate our efforts in developing new molecules derived from Brazilian cashew nut shell liquid (CNSL), a natural oil and a byproduct of cashew nut food processing, with a high content of phenolic lipids. The rational modification of their structures has emerged as a successful medicinal chemistry approach to the development of novel anti-AD lead candidates. The biological profile of the newly developed CNSL derivatives towards validated AD targets will be discussed together with the role of these molecular targets in the context of AD pathogenesis.
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Affiliation(s)
- Elisa Uliassi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy;
| | - Andressa Souza de Oliveira
- Department of Pharmacy, Health Sciences Faculty, Campus Universitário Darcy Ribeiro, University of Brasília, Brasília 70910-900, DF, Brazil; (A.S.d.O.); (L.d.C.N.)
| | - Luciana de Camargo Nascente
- Department of Pharmacy, Health Sciences Faculty, Campus Universitário Darcy Ribeiro, University of Brasília, Brasília 70910-900, DF, Brazil; (A.S.d.O.); (L.d.C.N.)
| | - Luiz Antonio Soares Romeiro
- Department of Pharmacy, Health Sciences Faculty, Campus Universitário Darcy Ribeiro, University of Brasília, Brasília 70910-900, DF, Brazil; (A.S.d.O.); (L.d.C.N.)
| | - Maria Laura Bolognesi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy;
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Floris B, Galloni P, Conte V, Sabuzi F. Tailored Functionalization of Natural Phenols to Improve Biological Activity. Biomolecules 2021; 11:1325. [PMID: 34572538 PMCID: PMC8467377 DOI: 10.3390/biom11091325] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 12/11/2022] Open
Abstract
Phenols are widespread in nature, being the major components of several plants and essential oils. Natural phenols' anti-microbial, anti-bacterial, anti-oxidant, pharmacological and nutritional properties are, nowadays, well established. Hence, given their peculiar biological role, numerous studies are currently ongoing to overcome their limitations, as well as to enhance their activity. In this review, the functionalization of selected natural phenols is critically examined, mainly highlighting their improved bioactivity after the proper chemical transformations. In particular, functionalization of the most abundant naturally occurring monophenols, diphenols, lipidic phenols, phenolic acids, polyphenols and curcumin derivatives is explored.
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Affiliation(s)
- Barbara Floris
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, snc, 00133 Roma, Italy
| | - Pierluca Galloni
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, snc, 00133 Roma, Italy
| | - Valeria Conte
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, snc, 00133 Roma, Italy
| | - Federica Sabuzi
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, snc, 00133 Roma, Italy
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28
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Zhang Y, Zhang T, Liang Y, Jiang L, Sui X. Dietary Bioactive Lipids: A Review on Absorption, Metabolism, and Health Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:8929-8943. [PMID: 34161727 DOI: 10.1021/acs.jafc.1c01369] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dietary lipids are an indispensable source of energy and nutrition in human life. Numerous studies have shown that dietary bioactive lipids have many health benefits, including prevention or treatment of chronic diseases. The different chemical compositions and structural characteristics of bioactive lipids not only affect their digestion, absorption, and metabolism but also affect their health properties. In this review, the major dietary bioactive lipids (fatty acids, carotenoids, phytosterols, phenolic lipids, fat-soluble vitamins, and sphingomyelins) in foods are systematically summarized, from the aspects of composition, digestion, absorption, metabolism, source, structural characteristics, and their health properties. In particular, the relationship between the compositional and structural changes of bioactive lipids and their absorption and metabolism is discussed as well as their effect on health properties. This review provides a comprehensive summary toward health properties of dietary bioactive lipids.
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Affiliation(s)
- Yan Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
- National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Tianyi Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Yan Liang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Lianzhou Jiang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Xiaonan Sui
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
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Gandhi B, Juliya J, Dileep V, Uma Rajeswari B, Misra S, Kaki SS. Antioxidant and Biological Activities of Novel Structured Monoacylglycerol Derivatives with Phenolic Acids. EUR J LIPID SCI TECH 2021. [DOI: 10.1002/ejlt.202100055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bhukya Gandhi
- Centre for Lipid Science & Technology CSIR‐Indian Institute of Chemical Technology Uppal Road, Tarnaka Hyderabad 500007 India
- Academy of Scientific and Innovative Research CSIR Ghaziabad 201002 India
| | - Johny Juliya
- Centre for Lipid Science & Technology CSIR‐Indian Institute of Chemical Technology Uppal Road, Tarnaka Hyderabad 500007 India
| | - Veeragoni Dileep
- Applied Biology CSIR‐Indian Institute of Chemical Technology Uppal Road, Tarnaka Hyderabad 500007 India
| | - Batchu Uma Rajeswari
- Applied Biology CSIR‐Indian Institute of Chemical Technology Uppal Road, Tarnaka Hyderabad 500007 India
| | - Sunil Misra
- Academy of Scientific and Innovative Research CSIR Ghaziabad 201002 India
- Applied Biology CSIR‐Indian Institute of Chemical Technology Uppal Road, Tarnaka Hyderabad 500007 India
| | - Shiva Shanker Kaki
- Centre for Lipid Science & Technology CSIR‐Indian Institute of Chemical Technology Uppal Road, Tarnaka Hyderabad 500007 India
- Academy of Scientific and Innovative Research CSIR Ghaziabad 201002 India
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Toxicity and Antioxidant Activity of Fullerenol C 60,70 with Low Number of Oxygen Substituents. Int J Mol Sci 2021; 22:ijms22126382. [PMID: 34203700 PMCID: PMC8232284 DOI: 10.3390/ijms22126382] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/05/2021] [Accepted: 06/10/2021] [Indexed: 02/01/2023] Open
Abstract
Fullerene is a nanosized carbon structure with potential drug delivery applications. We studied the bioeffects of a water-soluble fullerene derivative, fullerenol, with 10-12 oxygen groups (F10-12); its structure was characterized by IR and XPS spectroscopy. A bioluminescent enzyme system was used to study toxic and antioxidant effects of F10-12 at the enzymatic level. Antioxidant characteristics of F10-12 were revealed in model solutions of organic and inorganic oxidizers. Low-concentration activation of bioluminescence was validated statistically in oxidizer solutions. Toxic and antioxidant characteristics of F10-12 were compared to those of homologous fullerenols with a higher number of oxygen groups:F24-28 and F40-42. No simple dependency was found between the toxic/antioxidant characteristics and the number of oxygen groups on the fullerene’s carbon cage. Lower toxicity and higher antioxidant activity of F24-28 were identified and presumptively attributed to its higher solubility. An active role of reactive oxygen species (ROS) in the bioeffects of F10-12 was demonstrated. Correlations between toxic/antioxidant characteristics of F10-12 and ROS content were evaluated. Toxic and antioxidant effects were related to the decrease in ROS content in the enzyme solutions. Our results reveal a complexity of ROS effects in the enzymatic assay system.
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Nyirenda J, Zombe K, Kalaba G, Siabbamba C, Mukela I. Exhaustive valorization of cashew nut shell waste as a potential bioresource material. Sci Rep 2021; 11:11986. [PMID: 34099855 PMCID: PMC8184836 DOI: 10.1038/s41598-021-91571-y] [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: 02/24/2021] [Accepted: 05/25/2021] [Indexed: 02/05/2023] Open
Abstract
In this paper, we report extraction of cashew nut shell liquid (CNSL) from cashew nut shell waste (CNSW) and further use of residues for generation of activated carbon for removal of heavy metals and methylene blue (MB). Solvent extraction yielded 24.6 ± 0.4%, 38.2 ± 0.4% and 40.1 ± 0.9% for petroleum ether, hexane and ethanol respectively. Phytochemical screening showed presence of alkaloids, carbohydrates, saponins, phenols, tannins, flavonoids, amino acids, terpenoids, proteins, steroids, glycosides and carboxylic acids. The CNSL had a pH of 3.2, viscosity (104.6 ± 1.8 mPa s), moisture (6.5%), ash (1.6 ± 0.1%), refractive index (1.52 ± 0.001), specific density (0.9561 ± 0.0002 g/cm3), acid value (118.7 ± 9.2 mg KOH/g), free fatty acid value (60.1 ± 4.7%), saponification number (138.1 ± 3.2 mg KOH/g) and iodine value (188.1 ± 2.3 mgI 2/100 g). The average percentage removal of Cu (II), Pb (II), Cd (II) and Zn (II) was 99.4 ± 0.5, 95.4 ± 1.5, 99.5 ± 0.1, 98.4 ± 0.1%, and removal efficiency of MB at 50, 150, 250 and 350 mg/L was 99.63, 97.66, 96.48 and 94.81%, respectively. Equilibrium data were best described by the Freundlich isotherm model. The maximum monolayer adsorption capacity was 12.1 mg/g. The adsorption kinetics conformed to pseudo-second-order model. ∆G° was negative and a ∆H° of + 22.76 kJ/mol indicated that adsorption was endothermic. The ΔS° (+ 0.086 kJ/mol/K) showed that there was spontaneous interaction of the solution and adsorbate. These results show that CNSW is a potential bioresource for CNSL production for use in the paints, varnishes, surface coatings, agrochemicals and ethnomedicine industries. Residual shells can be exploited as fuels or converted to activated carbon for use as low-cost filters in water purification.
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Affiliation(s)
- James Nyirenda
- grid.12984.360000 0000 8914 5257Department of Chemistry, School of Natural Sciences, The University of Zambia, Box 32379, Lusaka, Zambia
| | - Kadango Zombe
- grid.12984.360000 0000 8914 5257Department of Chemistry, School of Natural Sciences, The University of Zambia, Box 32379, Lusaka, Zambia
| | - George Kalaba
- grid.12984.360000 0000 8914 5257Department of Chemistry, School of Natural Sciences, The University of Zambia, Box 32379, Lusaka, Zambia
| | - Chipo Siabbamba
- grid.12984.360000 0000 8914 5257Department of Chemistry, School of Natural Sciences, The University of Zambia, Box 32379, Lusaka, Zambia
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Gierlikowska B, Stachura A, Gierlikowski W, Demkow U. Phagocytosis, Degranulation and Extracellular Traps Release by Neutrophils-The Current Knowledge, Pharmacological Modulation and Future Prospects. Front Pharmacol 2021; 12:666732. [PMID: 34017259 PMCID: PMC8129565 DOI: 10.3389/fphar.2021.666732] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/19/2021] [Indexed: 12/15/2022] Open
Abstract
Neutrophils are crucial elements of innate immune system, which assure host defense via a range of effector functions, such as phagocytosis, degranulation, and NET formation. The latest literature clearly indicates that modulation of effector functions of neutrophils may affect the treatment efficacy. Pharmacological modulation may affect molecular mechanisms activating or suppressing phagocytosis, degranulation or NET formation. In this review, we describe the role of neutrophils in physiology and in the course of bacterial and viral infections, illustrating the versatility and plasticity of those cells. This review also focus on the action of plant extracts, plant-derived compounds and synthetic drugs on effector functions of neutrophils. These recent advances in the knowledge can help to devise novel therapeutic approaches via pharmacological modulation of the described processes.
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Affiliation(s)
- Barbara Gierlikowska
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
| | - Albert Stachura
- Department of Methodology, Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland.,Doctoral School, Medical University of Warsaw, Warsaw, Poland
| | - Wojciech Gierlikowski
- Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Urszula Demkow
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
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Alkyl-Resorcinol Derivatives as Inhibitors of GDP-Mannose Pyrophosphorylase with Antileishmanial Activities. Molecules 2021; 26:molecules26061551. [PMID: 33799883 PMCID: PMC7999366 DOI: 10.3390/molecules26061551] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/07/2021] [Accepted: 03/09/2021] [Indexed: 11/16/2022] Open
Abstract
Leishmaniasis is a vector-borne disease caused by the protozoan parasite Leishmania found in tropical and sub-tropical areas, affecting 12 million people around the world. Only few treatments are available against this disease and all of them present issues of toxicity and/or resistance. In this context, the development of new antileishmanial drugs specifically directed against a therapeutic target appears to be a promising strategy. The GDP-Mannose Pyrophosphorylase (GDP-MP) has been previously shown to be an attractive therapeutic target in Leishmania. In this study, a chemical library of 5000 compounds was screened on both L. infantum (LiGDP-MP) and human (hGDP-MP) GDP-MPs. From this screening, oncostemonol D was found to be active on both GDP-MPs at the micromolar level. Ten alkyl-resorcinol derivatives, of which oncostemonols E and J (2 and 3) were described for the first time from nature, were then evaluated on both enzymes as well as on L. infantum axenic and intramacrophage amastigotes. From this evaluation, compounds 1 and 3 inhibited both GDP-MPs at the micromolar level, and compound 9 displayed a three-times lower IC50 on LiGDP-MP, at 11 µM, than on hGDP-MP. As they displayed mild activities on the parasite, these compounds need to be further pharmacomodulated in order to improve their affinity and specificity to the target as well as their antileishmanial activity.
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Complete Genome Sequence of Cellulomonas sp. JZ18, a Root Endophytic Bacterium Isolated from the Perennial Desert Tussock-Grass Panicum turgidum. Curr Microbiol 2021; 78:1135-1141. [PMID: 33683416 DOI: 10.1007/s00284-021-02429-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 02/11/2021] [Indexed: 12/12/2022]
Abstract
Cellulomonas sp. JZ18 is a gram-positive, rod shaped bacterium that was previously isolated from the root endosphere of the perennial desert tussock-grass Panicum turgidum. Genome coverage of PacBio sequencing was approximately 199X. Genome assembly generated a single chromosome of 7,421,843 base pairs with a guanine-cytosine (GC) content of 75.60% with 3240 protein coding sequences, 361 pseudo genes, three ribosomal RNA operons, three non-coding RNAs and 45 transfer RNAs. Comparison of JZ18's genome with type strains from the same genus, using digital DNA-DNA hybridization and average nucleotide identity calculations, revealed that JZ18 might potentially belong to a new species. Functional analysis revealed the presence of genes that may complement previously observed biochemical and plant phenotypes. Furthermore, the presence of a number of enzymes could be of potential use in industrial processes as biocatalysts. Genome sequencing and analysis, coupled with comparative genomics, of endophytic bacteria for their potential plant growth promoting activities under different soil conditions will accelerate the knowledge and applications of biostimulants in sustainable agriculture.
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Elder AS, Coupland JN, Elias RJ. Effect of alkyl chain length on the antioxidant activity of alkylresorcinol homologues in bulk oils and oil-in-water emulsions. Food Chem 2021; 346:128885. [PMID: 33429298 DOI: 10.1016/j.foodchem.2020.128885] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 01/17/2023]
Abstract
The antioxidant cut-off theory details the importance of fine-tuning antioxidant hydrophobicity to optimize antioxidant effectiveness for a given food system; however, previous research has utilized synthetic antioxidant homologues which fail to align with the food industry's demand for natural ingredients. Alkylresorcinols represent a natural homologous series of phenolipid antioxidants. The antioxidant activities of individual alkylresorcinol homologues were investigated in bulk oils and oil-in-water emulsions. In oils, antioxidant activity decreased as alkyl chain length increased and there was no effect on rate of loss. In emulsions, optimum antioxidant activity was observed at intermediate alkyl chain length (C21:0) and longer homologues were lost more rapidly. Radical scavenging capacity decreased as alkyl chain length increased but alkylresorcinols were unable to chelate iron. This suggests that intrinsic properties (e.g. radical scavenging capacity) are responsible for the antioxidant activity of alkylresorcinols in oils while physicochemical phenomena (e.g. partitioning) drive antioxidant activity of alkylresorcinols in emulsions.
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Affiliation(s)
- Andrew S Elder
- Department of Food Science, The Pennsylvania State University, University Park, PA 16802, United States
| | - John N Coupland
- Department of Food Science, The Pennsylvania State University, University Park, PA 16802, United States
| | - Ryan J Elias
- Department of Food Science, The Pennsylvania State University, University Park, PA 16802, United States.
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Havaux M. Plastoquinone In and Beyond Photosynthesis. TRENDS IN PLANT SCIENCE 2020; 25:1252-1265. [PMID: 32713776 DOI: 10.1016/j.tplants.2020.06.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 05/13/2023]
Abstract
Plastoquinone-9 (PQ-9) is an essential component of photosynthesis that carries electrons in the linear and alternative electron transport chains, and is also a redox sensor that regulates state transitions and gene expression. However, a large fraction of the PQ pool is located outside the thylakoid membranes, in the plastoglobules and the chloroplast envelopes, reflecting a wider range of functions beyond electron transport. This review describes new functions of PQ in photoprotection, as a potent antioxidant, and in chloroplast metabolism as a cofactor in the biosynthesis of chloroplast metabolites. It also focuses on the essential need for tight environmental control of PQ biosynthesis and for active exchange of this compound between the thylakoid membranes and the plastoglobules. Through its multiple functions, PQ connects photosynthesis with metabolism, light acclimation, and stress tolerance.
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Affiliation(s)
- Michel Havaux
- Aix-Marseille University, Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche (UMR) 7265, Biosciences and Biotechnologies Institute of Aix-Marseille, CEA/Cadarache, F-13108 Saint-Paul-lez-Durance, France.
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Pistacia lentiscus Hydrosol: Untargeted Metabolomic Analysis and Anti-Inflammatory Activity Mediated by NF- κB and the Citrate Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:4264815. [PMID: 33204395 PMCID: PMC7652607 DOI: 10.1155/2020/4264815] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 10/01/2020] [Accepted: 10/20/2020] [Indexed: 01/13/2023]
Abstract
Pistacia lentiscus shows a long range of biological activities, and it has been used in traditional medicine for treatment of various kinds of diseases. Moreover, related essential oil keeps important health-promoting properties. However, less is known about P. lentiscus hydrosol, a main by-product of essential oil production, usually used for steam distillation itself or discarded. In this work, by using ultra-high-resolution ESI(+)-FT-ICR mass spectrometry, a direct identification of four main classes of metabolites of P. lentiscus hydrosol (i.e., terpenes, amino acids, peptides, and condensed heterocycles) was obtained. Remarkably, P. lentiscus hydrosol exhibited an anti-inflammatory activity by suppressing the secretion of IL-1β, IL-6, and TNF-α proinflammatory cytokines in lipopolysaccharide- (LPS-) activated primary human monocytes. In LPS-triggered U937 cells, it inhibited NF-κB, a key transcription factor in inflammatory cascade, regulating the expression of both the mitochondrial citrate carrier and the ATP citrate lyase genes. These two main components of the citrate pathway were downregulated by P. lentiscus hydrosol. Therefore, the levels of ROS, NO, and PGE2, the inflammatory mediators downstream the citrate pathway, were reduced. Results shed light on metabolic profile and anti-inflammatory properties of P. lentiscus hydrosol, suggesting its potential as a therapeutic agent.
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Aladdin NA, Husain K, Jalil J, Sabandar CW, Jamal JA. Xanthine oxidase inhibitory activity of a new isocoumarin obtained from Marantodes pumilum var. pumila leaves. BMC Complement Med Ther 2020; 20:324. [PMID: 33109178 PMCID: PMC7590683 DOI: 10.1186/s12906-020-03119-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 10/19/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND In traditional Malay medicine, Marantodes pumilum (Blume) Kuntze (family Primulaceae) is commonly used by women to treat parturition, flatulence, dysentery, dysmenorrhea, gonorrhea, and bone diseases. Preliminary screening of some Primulaceae species showed that they possess xanthine oxidase inhibitory activity. Thus, this study aimed to investigate the xanthine oxidase inhibitory activity of three varieties of M. pumilum and their phytochemical compounds. METHOD Dichloromethane, methanol, and water extracts of the leaves and roots of M. pumilum var. alata, M. pumilum var. pumila, and M. pumilum var. lanceolata were tested using an in vitro xanthine oxidase inhibitory assay. Bioassay-guided fractionation and isolation were carried out on the most active extract using chromatographic techniques. The structures of the isolated compounds were determined using spectroscopic techniques. RESULTS The most active dichloromethane extract of M. pumilum var. pumila leaves (IC50 = 161.6 μg/mL) yielded one new compound, 3,7-dihydroxy-5-methoxy-4,8-dimethyl-isocoumarin (1), and five known compounds, viz. ardisiaquinone A (2), maesanin (3), stigmasterol (4), tetracosane (5), and margaric acid (6). The new compound was found to be the most active xanthine oxidase inhibitor with an IC50 value of 0.66 ± 0.01 μg/mL, which was not significantly different (p > 0.05) from that of the positive control, allopurinol (IC50 = 0.24 ± 0.00 μg/mL). CONCLUSION This study suggests that the new compound 3,7-dihydroxy-5-methoxy-4,8-dimethyl-isocoumarin (1), which was isolated from the dichloromethane extract of M. pumilum var. pumila leaves, could be a potential xanthine oxidase inhibitor.
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Affiliation(s)
- Nor-Ashila Aladdin
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Khairana Husain
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Juriyati Jalil
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Carla Wulandari Sabandar
- Department of Pharmacy, Faculty of Science and Technology, Universitas Sembilanbelas November Kolaka, Kolaka, Indonesia
| | - Jamia Azdina Jamal
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
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Gonçalves J, Luís Â, Gradillas A, García A, Restolho J, Fernández N, Domingues F, Gallardo E, Duarte AP. Ayahuasca Beverages: Phytochemical Analysis and Biological Properties. Antibiotics (Basel) 2020; 9:antibiotics9110731. [PMID: 33114334 PMCID: PMC7690887 DOI: 10.3390/antibiotics9110731] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/19/2020] [Accepted: 10/22/2020] [Indexed: 12/15/2022] Open
Abstract
Ayahuasca is a psychoactive beverage, originally consumed by indigenous Amazon tribes, of which consumption has been increasing worldwide. The aim of this study was to evaluate the phytochemical profile, as well as the antioxidant, anti-inflammatory and antimicrobial properties of decoctions of four individual plants, a commercial mixture and four mixtures of two individual plants used in the Ayahuasca preparation. For this purpose, a phytochemical characterization was performed, determining the content of flavonoids, total phenolic compounds, and analyzing the phenolic profile. Besides, 48 secondary metabolites were investigated by ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-Q/TOF-MS) and their concentration estimated with real standards when present. The antioxidant activity was evaluated by both the β-carotene bleaching test and DPPH free radical scavenging assay, and the anti-inflammatory activity was determined by a protein denaturation method. Finally, the antimicrobial properties were evaluated using the disc diffusion assay, resazurin microtiter method, anti-quorum sensing and anti-biofilm activity assays. The obtained results showed that, in general, the samples have a high content of phenolic compounds and flavonoids with noticeable differences, reflecting on remarkable antioxidant and anti-inflammatory activities. Significant antimicrobial properties were also observed, with emphasis on the effect of B. caapi and P. harmala on planktonic and biofilm cells of A. baumannii, inhibiting both the biofilm formation and the production of violacein pigment.
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Affiliation(s)
- Joana Gonçalves
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (J.G.); (J.R.); (F.D.); (A.P.D.)
- Laboratório de Fármaco-Toxicologia, UBI Medical, Universidade da Beira Interior, Estrada Municipal 506, 6200-284 Covilhã, Portugal
| | - Ângelo Luís
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (J.G.); (J.R.); (F.D.); (A.P.D.)
- Laboratório de Fármaco-Toxicologia, UBI Medical, Universidade da Beira Interior, Estrada Municipal 506, 6200-284 Covilhã, Portugal
- Correspondence: (Â.L.); (E.G.); Tel.: +351-275-329-002/3 (Â.L.); +351-275-329-002/3 (E.G.)
| | - Ana Gradillas
- CEMBIO, Center for Metabolomics and Bioanalysis, Facultad de Farmacia, Universidad San Pablo CEU, CEU Universities, Campus Monteprincipe, Boadilla del Monte, 28668 Madrid, Spain; (A.G.); (A.G.)
| | - Antonia García
- CEMBIO, Center for Metabolomics and Bioanalysis, Facultad de Farmacia, Universidad San Pablo CEU, CEU Universities, Campus Monteprincipe, Boadilla del Monte, 28668 Madrid, Spain; (A.G.); (A.G.)
| | - José Restolho
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (J.G.); (J.R.); (F.D.); (A.P.D.)
| | - Nicolás Fernández
- Cátedra de Toxicología y Química Legal, Laboratorio de Asesoramiento Toxicológico Analítico (CENATOXA), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, C1113AAD Buenos Aires, Argentina;
| | - Fernanda Domingues
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (J.G.); (J.R.); (F.D.); (A.P.D.)
| | - Eugenia Gallardo
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (J.G.); (J.R.); (F.D.); (A.P.D.)
- Laboratório de Fármaco-Toxicologia, UBI Medical, Universidade da Beira Interior, Estrada Municipal 506, 6200-284 Covilhã, Portugal
- Correspondence: (Â.L.); (E.G.); Tel.: +351-275-329-002/3 (Â.L.); +351-275-329-002/3 (E.G.)
| | - Ana Paula Duarte
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (J.G.); (J.R.); (F.D.); (A.P.D.)
- Laboratório de Fármaco-Toxicologia, UBI Medical, Universidade da Beira Interior, Estrada Municipal 506, 6200-284 Covilhã, Portugal
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Nikolaev YA, Tutel’yan AV, Loiko NG, Buck J, Sidorenko SV, Lazareva I, Gostev V, Manzen’yuk OY, Shemyakin IG, Abramovich RA, Huwyler J, El’-Registan GI. The use of 4-Hexylresorcinol as antibiotic adjuvant. PLoS One 2020; 15:e0239147. [PMID: 32960928 PMCID: PMC7508414 DOI: 10.1371/journal.pone.0239147] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/31/2020] [Indexed: 12/24/2022] Open
Abstract
Ever decreasing efficiency of antibiotic treatment due to growing antibiotic resistance of pathogenic bacteria is a critical issue in clinical practice. The two generally accepted major approaches to this problem are the search for new antibiotics and the development of antibiotic adjuvants to enhance the antimicrobial activity of known compounds. It was therefore the aim of the present study to test whether alkylresorcinols, a class of phenolic lipids, can be used as adjuvants to potentiate the effect of various classes of antibiotics. Alkylresorcinols were combined with 12 clinically used antibiotics. Growth-inhibiting activity against a broad range of pro- and eukaryotic microorganisms was determined. Test organisms did comprise 10 bacterial and 2 fungal collection strains, including E. coli and S. aureus, and clinical isolates of K. pneumoniae. The highest adjuvant activity was observed in the case of 4-hexylresorcinol (4-HR), a natural compound found in plants with antimicrobial activity. 50% of the minimal inhibitory concentration (MIC) of 4-HR caused an up to 50-fold decrease in the MIC of antibiotics of various classes. Application of 4-HR as an adjuvant revealed its efficiency against germination of bacterial dormant forms (spores) and prevented formation of antibiotic-tolerant persister cells. Using an in vivo mouse model of K. pneumoniae-induced sepsis, we could demonstrate that the combination of 4-HR and polymyxin was highly effective. 75% of animals were free of infection after treatment as compared to none of the animals receiving the antibiotic alone. We conclude that alkylresorcinols such as 4-HR can be used as an adjuvant to increase the efficiency of several known antibiotics. We suggest that by this approach the risk for development of genetically determined antibiotic resistance can be minimized due to the multimodal mode of action of 4-HR.
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Affiliation(s)
- Y. A. Nikolaev
- Federal Research Centre “Fundamentals of Biotechnology”, Russian Academy of Sciences, Moscow, Russia
| | - A. V. Tutel’yan
- Central Research Institute of Epidemiology of Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor) and I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - N. G. Loiko
- Federal Research Centre “Fundamentals of Biotechnology”, Russian Academy of Sciences, Moscow, Russia
| | - J. Buck
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - S. V. Sidorenko
- Pediatric Research and Clinical Center for Infectious Diseases, Saint Petersburg, Russia
- I.I. Mechnikov North Western State Medical University, St Petersburg, Russia
| | - I. Lazareva
- Pediatric Research and Clinical Center for Infectious Diseases, Saint Petersburg, Russia
- I.I. Mechnikov North Western State Medical University, St Petersburg, Russia
| | - V. Gostev
- Pediatric Research and Clinical Center for Infectious Diseases, Saint Petersburg, Russia
- I.I. Mechnikov North Western State Medical University, St Petersburg, Russia
| | - O. Y. Manzen’yuk
- State Research Center for Applied Microbiology and Biotechnology of Russian Federal Service for Surveillance on Consumer Rights Protection and Human Welfare (Rospotrebnadzor), Obolensk, Russia
| | - I. G. Shemyakin
- State Research Center for Applied Microbiology and Biotechnology of Russian Federal Service for Surveillance on Consumer Rights Protection and Human Welfare (Rospotrebnadzor), Obolensk, Russia
| | - R. A. Abramovich
- Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
| | - J. Huwyler
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - G. I. El’-Registan
- Federal Research Centre “Fundamentals of Biotechnology”, Russian Academy of Sciences, Moscow, Russia
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Humic Substances Mitigate the Impact of Tritium on Luminous Marine Bacteria. Involvement of Reactive Oxygen Species. Int J Mol Sci 2020; 21:ijms21186783. [PMID: 32947870 PMCID: PMC7556015 DOI: 10.3390/ijms21186783] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 11/16/2022] Open
Abstract
The paper studies the combined effects of beta-emitting radionuclide tritium and Humic Substances (HS) on the marine unicellular microorganism—luminous bacteria—under conditions of low-dose radiation exposures (<0.04 Gy). Tritium was used as a component of tritiated water. Bacterial luminescence intensity was considered as a tested physiological parameter. The bioluminescence response of the marine bacteria to tritium corresponded to the “hormesis” model: it included stages of bioluminescence inhibition and activation, as well as the absence of the effect. HS were shown to decrease the inhibition and activation effects of tritium, similar to those of americium-241, alpha-emitting radionuclide, studied earlier. Correlations between the bioluminescence intensity and the content of Reactive Oxygen Species (ROS) were found in the radioactive bacterial suspensions. The results demonstrate an important role of HS in natural processes in the regions of low radioactive contamination: HS can mitigate radiotoxic effects and adaptive response of microorganisms to low-dose radioactive exposures. The involvement of ROS in these processes was demonstrated.
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42
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Buonanno F, Catalani E, Cervia D, Cimarelli C, Marcantoni E, Ortenzi C. Natural Function and Structural Modification of Climacostol, a Ciliate Secondary Metabolite. Microorganisms 2020; 8:E809. [PMID: 32471240 PMCID: PMC7356801 DOI: 10.3390/microorganisms8060809] [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: 05/07/2020] [Accepted: 05/25/2020] [Indexed: 11/16/2022] Open
Abstract
The review highlights the main results of two decades of research on climacostol (5-[(2Z)-non-2-en-1-yl]benzene-1,3-diol), the resorcinolic lipid produced and used by the ciliated protozoan Climacostomum virens for chemical defense against a wide range of predators, and to assist its carnivorous feeding. After the first studies on the physiological function of climacostol, the compound and some analogues were chemically synthesized, thus allowing us to explore both its effect on different prokaryotic and eukaryotic biological systems, and the role of its relevant structural traits. In particular, the results obtained in the last 10 years indicate climacostol is an effective antimicrobial and anticancer agent, bringing new clues to the attempt to design and synthesize additional novel analogues that can increase or optimize its pharmacological properties.
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Affiliation(s)
- Federico Buonanno
- Laboratory of Protistology and Biology Education, Department of Education, Cultural Heritage, and Tourism (ECHT), Università degli Studi di Macerata, 62100 Macerata, Italy;
| | - Elisabetta Catalani
- Department for Innovation in Biological, Agro-food and Forest systems (DIBAF), Università degli Studi della Tuscia, 01100 Viterbo, Italy; (E.C.); (D.C.)
| | - Davide Cervia
- Department for Innovation in Biological, Agro-food and Forest systems (DIBAF), Università degli Studi della Tuscia, 01100 Viterbo, Italy; (E.C.); (D.C.)
| | - Cristina Cimarelli
- School of Science and Technology, Section of Chemistry, Università degli Studi di Camerino, 62032 Camerino, Italy; (C.C.); (E.M.)
| | - Enrico Marcantoni
- School of Science and Technology, Section of Chemistry, Università degli Studi di Camerino, 62032 Camerino, Italy; (C.C.); (E.M.)
| | - Claudio Ortenzi
- Laboratory of Protistology and Biology Education, Department of Education, Cultural Heritage, and Tourism (ECHT), Università degli Studi di Macerata, 62100 Macerata, Italy;
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43
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Abstract
4-hexylresorcinol (4-HR), as a derivative of phenolic lipids, has biological and pharmacological properties that are beneficial when used with a biomaterial. It has antimicrobial and antiseptic activity and can thus prevent contamination and infection of biomaterials. 4-HR suppresses the nuclear factor kappa B (NF-κB) signaling pathway related to osteoclast differentiation. The suppression of NF-κB increases the bone formation marker and contributes to new bone formation. The tumor necrosis factor-α (TNF-α) is a pro-inflammatory cytokine produced by macrophages and suppressed by 4-HR. Suppression of TNF-α decreases osteoclast activity and promotes wound healing. 4-HR increases the vascular endothelial growth factor and has an anti-thrombotic effect. When incorporated into silk vascular patches, it promotes endothelium wound healing. Recently, 4-HR has exhibited biological properties and has been successfully incorporated into various biomaterials. Consequently, it is a useful pharmacological chemical that can be used with biomaterials in the field of tissue engineering.
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44
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Meshginfar N, Tavakoli H, Dornan K, Hosseinian F. Phenolic lipids as unique bioactive compounds: a comprehensive review on their multifunctional activity toward the prevention of Alzheimer's disease. Crit Rev Food Sci Nutr 2020; 61:1394-1403. [PMID: 32363900 DOI: 10.1080/10408398.2020.1759024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Phenolic lipids are multifunctional compounds which play an important biological role in the body. Their unique biologic functionality stems from their strong amphiphilic character which allows them to be incorporated in erythrocytes. Through membrane incorporation, these compounds exert their biological effects on neurons which are not modulated by hydrophilic compounds. These bioactive compounds are present in nature as secondary plant metabolites, and consequently their availability is limited, for dietary and medical purposes. In this review, the pathways and mechanisms associated with the pathogenesis of Alzheimer's disease will be described. In addition, the modulatory effects of phenolic lipids on these pathways and a list of several synthetic, semi synthetic and natural sources of phenolic lipids will be examined as having the potential to prevent or combat Alzheimer's disease.
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Affiliation(s)
- Nasim Meshginfar
- Department of Chemistry, Food Science and Nutrition, Carleton University, Ottawa, Ontario, Canada
| | - Hamed Tavakoli
- Department of Chemistry, Food Science and Nutrition, Carleton University, Ottawa, Ontario, Canada
| | - Kelly Dornan
- Department of Chemistry, Food Science and Nutrition, Carleton University, Ottawa, Ontario, Canada
| | - Farah Hosseinian
- Department of Chemistry, Food Science and Nutrition, Carleton University, Ottawa, Ontario, Canada.,Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
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45
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Michailoff A, Silveira M, Maeda E, Sordi A, Francisco L, Farenzena R. Effect of including functional oils in ovine diets on ruminal fermentation and performance. Small Rumin Res 2020. [DOI: 10.1016/j.smallrumres.2020.106084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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46
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Eida AA, Bougouffa S, Alam I, Saad MM, Hirt H. Complete genome sequence of the endophytic bacterium Cellulosimicrobium sp. JZ28 isolated from the root endosphere of the perennial desert tussock grass Panicum turgidum. Arch Microbiol 2020; 202:1563-1569. [PMID: 32172289 DOI: 10.1007/s00203-020-01859-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/01/2020] [Accepted: 03/04/2020] [Indexed: 02/04/2023]
Abstract
Cellulosimicrobium sp. JZ28, a root endophytic bacterium from the desert plant Panicum turgidum, was previously identified as a plant growth-promoting bacterium. The genome of JZ28 consists of a 4378,193 bp circular chromosome and contains 3930 CDSs with an average GC content of 74.5%. Whole-genome sequencing analysis revealed that JZ28 was closely related to C. aquatile 3 bp. The genome harbors genes responsible for protection against oxidative, osmotic and salinity stresses, such as the production of osmoprotectants. It also contains genes with a role in the production of volatiles, such as hydrogen sulfide, which promote biotic and abiotic stress tolerance in plants. The presence of three copies of chitinase genes indicates a possible role of JZ28 as biocontrol agent against fungal pathogens, while a number of genes for the degradation of plant biopolymers indicates potential application in industrial processes. Genome sequencing and mining of culture-dependent collections of bacterial endophytes from desert plants provide new opportunities for biotechnological applications.
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Affiliation(s)
- Abdul Aziz Eida
- DARWIN21, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Salim Bougouffa
- Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
- BioScience Core Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Intikhab Alam
- Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Maged M Saad
- DARWIN21, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
| | - Heribert Hirt
- DARWIN21, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
- Max F. Perutz Laboratories, University of Vienna, Dr. Bohrgasse 9, 1030, Vienna, Austria
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47
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Nascimento FX, Hernández AG, Glick BR, Rossi MJ. Plant growth-promoting activities and genomic analysis of the stress-resistant Bacillus megaterium STB1, a bacterium of agricultural and biotechnological interest. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2020; 25:e00406. [PMID: 31886139 PMCID: PMC6920507 DOI: 10.1016/j.btre.2019.e00406] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/05/2019] [Accepted: 12/01/2019] [Indexed: 12/14/2022]
Abstract
In this work, the stress-resistant Bacillus megaterium STB1 is characterized and its ability to promote plant growth under normal and stress conditions is demonstrated. The genomic sequence of this bacterium, and a detailed analysis of the genes involved in facilitating its stress resistance and plant growth-promoting activities is also reported. The B. megaterium STB1 genome is rich in genetic elements involved in multiple stress resistance, xenobiotic degradation, pathogen antagonistic activities, and other traits related to soil and rhizosphere colonization. Moreover, genes participating in the biosynthesis of auxins and cytokinins, the modulation of polyamines, GABA, brassinosteroids and ethylene levels were also found. Ultimately, this study brings new insights into the role of B. megaterium as a plant growth-promoting bacterium and opens new opportunities for the development of novel strategies for agriculture and biotechnology.
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Affiliation(s)
- Francisco X. Nascimento
- IBET, Instituto de Biologia Experimental e Tecnológica, Oeiras, 2780-157, Portugal
- Laboratório de Microbiologia e Bioprocessos, MIP-CCB, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brazil
| | - Anabel G. Hernández
- Laboratório de Microbiologia e Bioprocessos, MIP-CCB, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brazil
| | - Bernard R. Glick
- Department of Biology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Márcio J. Rossi
- Laboratório de Microbiologia e Bioprocessos, MIP-CCB, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brazil
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48
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Nikolaev YA, Demkina EV, Perminova IV, Loiko NG, Borzenkov IA, Ivanona AE, Konstantinov AI, El’-Registan GI. Role of Humic Compounds in Viability Prolongation of the Cells of Hydrocarbon-Oxidizing Bacteria. Microbiology (Reading) 2020. [DOI: 10.1134/s0026261719060122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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49
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Nikolaev YA, Loiko NG, Demkina EV, Atroshchik EA, Konstantinov AI, Perminova IV, El’-Registan GI. Functional Activity of Humic Substances in Survival Prolongation of Populations of Hydrocarbon-Oxidizing Bacteria Acinetobacter junii. Microbiology (Reading) 2020. [DOI: 10.1134/s0026261720010105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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50
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Sun T, Zhang H, Dong Z, Liu Z, Zheng M. Ultrasonic-promoted enzymatic preparation, identification and multi-active studies of nature-identical phenolic acid glycerol derivatives. RSC Adv 2020; 10:11139-11147. [PMID: 35495308 PMCID: PMC9050460 DOI: 10.1039/c9ra09830e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 03/04/2020] [Indexed: 11/21/2022] Open
Abstract
Phenolic acid glycerols (PAGs) are a group of rare phytochemicals found from potato periderm, which show great potential in the food, cosmetic and pharmaceutical industries. In this study, seven PAGs were enzymatically synthesized via transesterification of ethyl phenates (EPs) with glycerol by ultrasonic promotion. The conversions of 88.1–98.5% could be obtained in 1–9 h. Compared with the conventional stirring methods, the catalytic efficiency was significantly increased 11.0–44.0 folds by ultrasound assistance. The lipid peroxidation inhibition activity increased 8.1-fold and 14.4-fold compared to the parent phenolic acids (PAs). Furthermore, caffeoyl glycerol and feruloyl glycerol exhibited excellent antimicrobial activity against Escherichia coli compared to the corresponding PAs with minimum inhibitory concentration (MIC) decreasing 4–16-fold. The PAGs can also absorb a much wider and higher amount of the harmful UV-B rays than the corresponding PAs. The present strategy for facile synthesis of multifunctional PAGs paves the way for the development and application of natural phytochemicals and novel ingredients. A group of rare nature-identical phenolic acid glycerol derivatives was enzymatically prepared and identified, and showed much better antioxidant and antimicrobial activities than the corresponding phenolic acids.![]()
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Affiliation(s)
- Teng Sun
- Oil Crops Research Institute
- Chinese Academy of Agricultural Sciences
- Key Laboratory of Oilseeds Processing
- Ministry of Agriculture
- Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory
| | - Haiping Zhang
- Oil Crops Research Institute
- Chinese Academy of Agricultural Sciences
- Key Laboratory of Oilseeds Processing
- Ministry of Agriculture
- Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory
| | - Zhe Dong
- Oil Crops Research Institute
- Chinese Academy of Agricultural Sciences
- Key Laboratory of Oilseeds Processing
- Ministry of Agriculture
- Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory
| | - Zengshe Liu
- Bio-Oils Research Unit
- United States Department of Agriculture
- Agricultural Research Service
- National Center for Agricultural Utilization Research
- Peoria
| | - Mingming Zheng
- Oil Crops Research Institute
- Chinese Academy of Agricultural Sciences
- Key Laboratory of Oilseeds Processing
- Ministry of Agriculture
- Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory
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