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Izumi Y, O’Dell KA, Zorumski CF. Glyphosate as a direct or indirect activator of pro-inflammatory signaling and cognitive impairment. Neural Regen Res 2024; 19:2212-2218. [PMID: 38488555 PMCID: PMC11034589 DOI: 10.4103/1673-5374.391331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/28/2023] [Accepted: 11/16/2023] [Indexed: 04/24/2024] Open
Abstract
Glyphosate-based herbicides are widely used around the world, making it likely that most humans have significant exposure. Because of habitual exposure, there are concerns about toxicity including neurotoxicity that could result in neurological, psychiatric, or cognitive impairment. We recently found that a single injection of glyphosate inhibits long-term potentiation, a cellular model of learning and memory, in rat hippocampal slices dissected 1 day after injection, indicating that glyphosate-based herbicides can alter cognitive function. Glyphosate-based herbicides could adversely affect cognitive function either indirectly and/or directly. Indirectly, glyphosate could affect gut microbiota, and if dysbiosis results in endotoxemia (leaky gut), infiltrated bacterial by-products such as lipopolysaccharides could activate pro-inflammatory cascades. Glyphosate can also directly trigger pro-inflammatory cascades. Indeed, we observed that acute glyphosate exposure inhibits long-term potentiation in rat hippocampal slices. Interestingly, direct inhibition of long-term potentiation by glyphosate appears to be similar to that of lipopolysaccharides. There are several possible measures to control dysbiosis and neuroinflammation caused by glyphosate. Dietary intake of polyphenols, such as quercetin, which overcome the inhibitory effect of glyphosate on long-term potentiation, could be one effective strategy. The aim of this narrative review is to discuss possible mechanisms underlying neurotoxicity following glyphosate exposure as a means to identify potential treatments.
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Affiliation(s)
- Yukitoshi Izumi
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, USA
| | - Kazuko A. O’Dell
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, USA
| | - Charles F. Zorumski
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, USA
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2
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Henao-Ardila A, Quintanilla-Carvajal MX, Moreno FL. Emulsification and stabilisation technologies used for the inclusion of lipophilic functional ingredients in food systems. Heliyon 2024; 10:e32150. [PMID: 38873677 PMCID: PMC11170136 DOI: 10.1016/j.heliyon.2024.e32150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024] Open
Abstract
Food industry is increasingly using functional ingredients to improve the food product quality. Lipid-containing functional ingredients are important sources of nutrients. This review examines the current state of emulsification and stabilisation technologies for incorporating lipophilic functional ingredients into food systems. Lipophilic functional ingredients, such as omega-3 fatty acids, carotenoids, and fat-soluble vitamins, offer numerous health benefits but present challenges due to their limited solubility in water-based food matrices. Emulsification techniques enable the dispersion of these ingredients in aqueous environments, facilitating their inclusion in a variety of food products. This review highlights recent advances in food emulsion formulation, emulsification methods and stabilisation techniques which, together, improve the stability and bioavailability of lipophilic compounds. The role of various emulsifiers, stabilizers, and encapsulation materials in enhancing the functionality of these ingredients is also explored. Furthermore, the review discusses different stabilisation techniques which can yield in emulsion in a solid or liquid state. By providing a comprehensive overview of current technologies, this review aims to guide future research and application in the development of functional foods enriched with lipophilic ingredients.
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Affiliation(s)
- Alejandra Henao-Ardila
- Doctorate in Biosciences, Faculty of Engineering, Universidad de La Sabana, Campus Universitario del Puente del Común, Km7 Autopista Norte de Bogotá, Chía, Cundinamarca, Colombia
- Grupo de Investigación en Procesos Agroindustriales, Faculty of Engineering, Universidad de La Sabana, Campus Universitario del Puente del Común, Km7 Autopista Norte de Bogotá, Chía, Cundinamarca, Colombia
| | - María Ximena Quintanilla-Carvajal
- Grupo de Investigación en Procesos Agroindustriales, Faculty of Engineering, Universidad de La Sabana, Campus Universitario del Puente del Común, Km7 Autopista Norte de Bogotá, Chía, Cundinamarca, Colombia
| | - Fabián Leonardo Moreno
- Grupo de Investigación en Procesos Agroindustriales, Faculty of Engineering, Universidad de La Sabana, Campus Universitario del Puente del Común, Km7 Autopista Norte de Bogotá, Chía, Cundinamarca, Colombia
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3
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Aonofriesei F. Surfactants' Interplay with Biofilm Development in Staphylococcus and Candida. Pharmaceutics 2024; 16:657. [PMID: 38794319 PMCID: PMC11125353 DOI: 10.3390/pharmaceutics16050657] [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: 04/12/2024] [Revised: 05/09/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
The capacity of micro-organisms to form biofilms is a pervasive trait in the microbial realm. For pathogens, biofilm formation serves as a virulence factor facilitating successful host colonization. Simultaneously, infections stemming from biofilm-forming micro-organisms pose significant treatment challenges due to their heightened resistance to antimicrobial agents. Hence, the quest for active compounds capable of impeding microbial biofilm development stands as a pivotal pursuit in biomedical research. This study presents findings concerning the impact of three surfactants, namely, polysorbate 20 (T20), polysorbate 80 (T80), and sodium dodecyl sulfate (SDS), on the initial stage of biofilm development in both Staphylococcus aureus and Candida dubliniensis. In contrast to previous investigations, we conducted a comparative assessment of the biofilm development capacity of these two taxonomically distant groups, predicated on their shared ability to reduce TTC. The common metabolic trait shared by S. aureus and C. dubliniensis in reducing TTC to formazan facilitated a simultaneous evaluation of biofilm development under the influence of surfactants across both groups. Our results revealed that surfactants could impede the development of biofilms in both species by disrupting the initial cell attachment step. The observed effect was contingent upon the concentration and type of compound, with a higher inhibition observed in culture media supplemented with SDS. At maximum concentrations (5%), T20 and T80 significantly curtailed the formation and viability of S. aureus and C. dubliniensis biofilms. Specifically, T20 inhibited biofilm development by 75.36% in S. aureus and 71.18% in C. dubliniensis, while T80 exhibited a slightly lower inhibitory effect, with values ranging between 66.68% (C. dubliniensis) and 65.54% (S. aureus) compared to the controls. Incorporating these two non-toxic surfactants into pharmaceutical formulations could potentially enhance the inhibitory efficacy of selected antimicrobial agents, particularly in external topical applications.
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Affiliation(s)
- Florin Aonofriesei
- Department of Natural Sciences, Faculty of Natural and Agricultural Sciences, Ovidius University of Constanta, 1, University Street, 900470 Constanța, Romania
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4
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Liu D, Liu G, Liu S. Promising Application, Efficient Production, and Genetic Basis of Mannosylerythritol Lipids. Biomolecules 2024; 14:557. [PMID: 38785964 PMCID: PMC11117751 DOI: 10.3390/biom14050557] [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: 04/11/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
Mannosylerythritol lipids (MELs) are a class of glycolipids that have been receiving increasing attention in recent years due to their diverse biological activities. MELs are produced by certain fungi and display a range of bioactivities, making them attractive candidates for various applications in medicine, agriculture, and biotechnology. Despite their remarkable qualities, industrial-scale production of MELs remains a challenge for fungal strains. Excellent fungal strains and fermentation processes are essential for the efficient production of MELs, so efforts have been made to improve the fermentation yield by screening high-yielding strains, optimizing fermentation conditions, and improving product purification processes. The availability of the genome sequence is pivotal for elucidating the genetic basis of fungal MEL biosynthesis. This review aims to shed light on the applications of MELs and provide insights into the genetic basis for efficient MEL production. Additionally, this review offers new perspectives on optimizing MEL production, contributing to the advancement of sustainable biosurfactant technologies.
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Affiliation(s)
- Dun Liu
- College of Marine Life Science, Ocean University of China, Qingdao 266003, China;
| | - Guanglei Liu
- College of Marine Life Science, Ocean University of China, Qingdao 266003, China;
| | - Shiping Liu
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing 400716, China
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5
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González-Durruthy M, Rial R, Ruso JM. Decoding the conformational binding of drug mixtures on ovalbumin: An integrated multimodal network. Int J Biol Macromol 2024; 261:129866. [PMID: 38302030 DOI: 10.1016/j.ijbiomac.2024.129866] [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: 12/12/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
This research addresses the crucial necessity for a deeper understanding of the binding interactions between surfactants and proteins, with a specific focus on ovalbumin. Considering ovalbumin's role in diverse biochemical processes, it remains a subject of significant interest for drug discovery and design. To fill existing knowledge gaps, we investigated the binding interaction between dicloxacillin and cetyltrimethylammonium bromide (CTAB) on ovalbumin, employing a comprehensive approach that combines computational modeling with experimental validations. Using the ezPocket tool, the computational phase predicted ten relevant binding sites on ovalbumin's surface. The isobologram combination index (CI) heatmap strongly suggested a complex interplay of antagonistic and synergistic effects. Besides, a conformational drug-drug interaction network was proposed to explore the stability of the surfactant mixture within specific binding sites of ovalbumin, revealing a dynamic landscape of suggested antagonist effects. Experimental validations through UV-vis, Fluorescence, and circular dichroism (CD) spectroscopy further corroborated the computational findings, confirming the formation of stable complexes. Finally, this study not only advances our comprehension of ovalbumin's interactions with surfactants but also offers a multidimensional perspective and an advanced methodological framework for efficient therapeutic strategies, opening new avenues for future applications in drug development and applied biochemistry.
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Affiliation(s)
- Michael González-Durruthy
- Soft Matter and Molecular Biophysics Group, Department of Applied Physics and Institute of Materials (iMATUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; NanoSafety Group, International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal.
| | - Ramón Rial
- Soft Matter and Molecular Biophysics Group, Department of Applied Physics and Institute of Materials (iMATUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Juan M Ruso
- Soft Matter and Molecular Biophysics Group, Department of Applied Physics and Institute of Materials (iMATUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
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6
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Czerkas K, Olchowik-Grabarek E, Łomanowska M, Abdulladjanova N, Sękowski S. Antibacterial Activity of Plant Polyphenols Belonging to the Tannins against Streptococcus mutans-Potential against Dental Caries. Molecules 2024; 29:879. [PMID: 38398630 PMCID: PMC10892310 DOI: 10.3390/molecules29040879] [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: 01/11/2024] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Dental caries (DC) is the most common oral pathology. The main bacteria responsible for DC is Streptococcus mutans. One of the strategies that can decrease or eliminate the risk of DC development is using compounds that will inhibit both the growth and virulence factors of S. mutans. Tannins are plant polyphenols that have strong antibacterial activity. The purpose of this study was to assess the antibacterial activity of three tannins against S. mutans. In this investigation, microbiological tests (MIC and MBC) and physicochemical techniques like the fluorescence measurements of tannins' interaction with S. mutans cell membrane and membrane proteins, zeta potential, and thermodynamic analyses were used to obtain knowledge about the antibacterial potential of the investigated compounds against S. mutans as well as about the mechanisms associated with antibacterial activity. The obtained results demonstrate that the used compounds exhibit high antibacterial activity against S. mutans. The mechanisms of their antibacterial activity are linked to the strong change in the S. mutans membrane fluidity and potential, and to their interaction with membrane proteins that can result in great disturbance of bacterial physiology and ultimately the inhibition of bacterial growth, triggering their death. Therefore, it can be concluded that the investigated compounds can be potentially used as natural factors in the prevention of dental caries.
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Affiliation(s)
- Krzysztof Czerkas
- Doctoral School of Exact and Natural Sciences, University of Bialystok, 15-254 Bialystok, Poland
| | - Ewa Olchowik-Grabarek
- Laboratory of Molecular Biophysics, Department of Microbiology and Biotechnology, Faculty of Biology, University of Bialystok, 15-254 Bialystok, Poland; (M.Ł.); (S.S.)
| | - Magdalena Łomanowska
- Laboratory of Molecular Biophysics, Department of Microbiology and Biotechnology, Faculty of Biology, University of Bialystok, 15-254 Bialystok, Poland; (M.Ł.); (S.S.)
| | - Nodira Abdulladjanova
- Institute of Bioorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan, Tashkent 100143, Uzbekistan;
| | - Szymon Sękowski
- Laboratory of Molecular Biophysics, Department of Microbiology and Biotechnology, Faculty of Biology, University of Bialystok, 15-254 Bialystok, Poland; (M.Ł.); (S.S.)
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Cucuzza S, Brosig S, Serno T, Bechtold-Peters K, Cerar J, Kammüller M, Gallou F. Modular and tunable alternative surfactants for biopharmaceuticals provide insights into Surfactant's Structure-Function relationship. Int J Pharm 2024; 650:123692. [PMID: 38081561 DOI: 10.1016/j.ijpharm.2023.123692] [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: 11/09/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/19/2023]
Abstract
Surface-induced aggregation of protein therapeutics is opposed by employing surfactants, which are ubiquitously used in drug product development, with polysorbates being the gold standard. Since poloxamer 188 is currently the only generally accepted polysorbate alternative, but cannot be ubiquitously applied, there is a strong need to develop surfactant alternatives for protein biologics that would complement and possibly overcome known drawbacks of existing surfactants. Yet, a severe lack of structure-function relationship knowledge complicates the development of new surfactants. Herein, we perform a systematic analysis of the structure-function relationship of three classes of novel alternative surfactants. Firstly, the mode of action is thoroughly characterized through tensiometry, calorimetry and MD simulations. Secondly, the safety profiles are evaluated through cell-based in vitro assays. Ultimately, we could conclude that the alternative surfactants investigated possess a mode of action and safety profile comparable to polysorbates. Moreover, the biophysical patterns elucidated here can be exploited to precisely tune the features of future surfactant designs.
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Affiliation(s)
- Stefano Cucuzza
- Novartis Pharma AG, TRD Biologics & CGT, GDD, 4002 Basel, Switzerland
| | - Sebastian Brosig
- Novartis Pharma AG, TRD Biologics & CGT, GDD, 4002 Basel, Switzerland
| | - Tim Serno
- Novartis Pharma AG, TRD Biologics & CGT, GDD, 4002 Basel, Switzerland
| | | | - Jure Cerar
- Novartis Pharma AG, TRD Biologics & CGT, GDD, 1234 Menges, Slovenia
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Puyol McKenna P, Naughton PJ, Dooley JSG, Ternan NG, Lemoine P, Banat IM. Microbial Biosurfactants: Antimicrobial Activity and Potential Biomedical and Therapeutic Exploits. Pharmaceuticals (Basel) 2024; 17:138. [PMID: 38276011 PMCID: PMC10818721 DOI: 10.3390/ph17010138] [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: 11/30/2023] [Revised: 01/14/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
The rapid emergence of multidrug-resistant pathogens worldwide has raised concerns regarding the effectiveness of conventional antibiotics. This can be observed in ESKAPE pathogens, among others, whose multiple resistance mechanisms have led to a reduction in effective treatment options. Innovative strategies aimed at mitigating the incidence of antibiotic-resistant pathogens encompass the potential use of biosurfactants. These surface-active agents comprise a group of unique amphiphilic molecules of microbial origin that are capable of interacting with the lipidic components of microorganisms. Biosurfactant interactions with different surfaces can affect their hydrophobic properties and as a result, their ability to alter microorganisms' adhesion abilities and consequent biofilm formation. Unlike synthetic surfactants, biosurfactants present low toxicity and high biodegradability and remain stable under temperature and pH extremes, making them potentially suitable for targeted use in medical and pharmaceutical applications. This review discusses the development of biosurfactants in biomedical and therapeutic uses as antimicrobial and antibiofilm agents, in addition to considering the potential synergistic effect of biosurfactants in combination with antibiotics. Furthermore, the anti-cancer and anti-viral potential of biosurfactants in relation to COVID-19 is also discussed.
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Affiliation(s)
- Patricia Puyol McKenna
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Faculty of Life and Health Sciences, Ulster University, Coleraine BT52 1 SA, UK; (P.P.M.); (P.J.N.); (J.S.G.D.); (N.G.T.)
| | - Patrick J. Naughton
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Faculty of Life and Health Sciences, Ulster University, Coleraine BT52 1 SA, UK; (P.P.M.); (P.J.N.); (J.S.G.D.); (N.G.T.)
| | - James S. G. Dooley
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Faculty of Life and Health Sciences, Ulster University, Coleraine BT52 1 SA, UK; (P.P.M.); (P.J.N.); (J.S.G.D.); (N.G.T.)
| | - Nigel G. Ternan
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Faculty of Life and Health Sciences, Ulster University, Coleraine BT52 1 SA, UK; (P.P.M.); (P.J.N.); (J.S.G.D.); (N.G.T.)
| | - Patrick Lemoine
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, Belfast BT15 1ED, UK;
| | - Ibrahim M. Banat
- Pharmaceutical Science Research Group, Biomedical Sciences Research Institute, Ulster University, Coleraine BT52 1SA, UK
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9
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Lavanya M, Machado AA. Surfactants as biodegradable sustainable inhibitors for corrosion control in diverse media and conditions: A comprehensive review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168407. [PMID: 37939963 DOI: 10.1016/j.scitotenv.2023.168407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/24/2023] [Accepted: 11/05/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Corrosion is a challenging and potentially harmful process that involves the continuing, impulsive deterioration of metallic structures via reactions involving environmental components and electro- or chemical processes. To inhibit corrosion, various additives are added. Traditional additives, on the other hand, contain environmentally hazardous substances. Surfactants are less expensive, easier to manufacture, and have high inhibitory efficacy and low toxicity compared to standard corrosion inhibitors. They are often employed as corrosion inhibitors to protect metallic materials against corrosion. METHODS Surfactant molecules' amphiphilic nature promotes adsorption at surfaces such as the metal/metal oxide-water interface. Surfactant adsorption on metals and metal oxides forms a barrier that can prevent corrosion. SIGNIFICANT FINDINGS This review of surfactants as corrosion inhibitors aims to offer a systemic evaluation of various surfactant physical and chemical properties, surfactant influence in corrosion inhibition, and surfactant used in corrosion inhibition that can be used to enhance the efficacy of surfactant use as corrosion inhibitors in a variety of environments. The effect of several parameters on the potential to suppress corrosion of surfactant molecule series is also discussed here.
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Affiliation(s)
- M Lavanya
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - Avryl Anna Machado
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India; Chemical and Bioprocess Engineering, Hamburg University of Technology, 21073 Hamburg, Germany
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10
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Sarwar T, Raza ZA, Nazeer MA, Khan A. Fabrication of gelatin-incorporated nanoporous chitosan-based membranes for potential water desalination applications. Int J Biol Macromol 2023; 253:126588. [PMID: 37659503 DOI: 10.1016/j.ijbiomac.2023.126588] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/21/2023] [Accepted: 08/27/2023] [Indexed: 09/04/2023]
Abstract
Membrane technology has extensively been used in diverse phenomena such as separation, purification and controlled transportation. Herein, gelatin-incorporated porous chitosan membranes have been prepared using the sol-gel approach for potential water desalination applications. The porogens of poly(ethylene glycol) and Triton X-100 were employed for the mentioned purpose. The prepared porous membranes have been characterized for surface chemical, structural, thermal, mechanical and functional attributes using appropriate analytical approaches. Electron microscopy expressed porous surface morphologies of the resultant films with an average pore size of 14.5 nm. The infrared analysis demonstrated a successful crosslinking of the precursors in the resulting membranes via maleic anhydride. Differential scanning calorimetry analysis disclosed acceptable thermal stability of the test membranes, workable above ambient temperatures. The membrane expressed a water contact of 68.59°, which indicated moderate hydrophilicity, thus allowing controlled transport of the aqueous media. The resultant gelatin/chitosan porous membrane exhibited a porosity of 98 % against kerosene oil. In contrast, the flowability of 7.14 (ethanol), 5.00 (distilled water) and 0.53 (ethylene glycol) mL/min has been recorded against the mentioned liquids. The membrane efficiently purified the local canal water to permissible limits. Such membranes have been qualified for potential applications in water purification systems.
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Affiliation(s)
- Tanzeel Sarwar
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan
| | - Zulfiqar Ali Raza
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan.
| | | | - Amina Khan
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan
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11
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Stachurska K, Marcisz U, Długosz M, Antosiewicz JM. Kinetics of Structural Transitions Induced by Sodium Dodecyl Sulfate in α-Chymotrypsin. ACS OMEGA 2023; 8:49137-49149. [PMID: 38162786 PMCID: PMC10753550 DOI: 10.1021/acsomega.3c07256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 01/03/2024]
Abstract
The temporal changes in circular dichroism at 222 and 260 nm were recorded by using stopped-flow spectroscopy after mixing α-chymotrypsin solutions with sodium dodecyl sulfate solutions. Simultaneously with the circular dichroism signal, the fluorescence emission was recorded. Changes in the secondary and tertiary structures of chymotrypsin induced by sodium dodecyl sulfate are characterized by either three or four one-way reactions with relaxation amplitudes and times precisely determined by an advanced numerical procedure of Kuzmič. Quantitatively, transitions within the secondary and tertiary structures of the protein are significantly different. Moreover, changes in the tertiary structure depend on the type of recorded signal (either circular dichroism or fluorescence) and the wavelength of the incident radiation. The latter observation is particularly interesting as it indicates that the contributions of protein's different tryptophans to the total recorded fluorescence depend on the excitation wavelength. We present several results justifying this hypothesis.
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Affiliation(s)
- Karolina Stachurska
- Biophysics Division, Institute of Experimental
Physics, Faculty of Physics, University
of Warsaw, Pasteura 5 Street, 02-093 Warsaw, Poland
| | - Urszula Marcisz
- Biophysics Division, Institute of Experimental
Physics, Faculty of Physics, University
of Warsaw, Pasteura 5 Street, 02-093 Warsaw, Poland
| | - Maciej Długosz
- Biophysics Division, Institute of Experimental
Physics, Faculty of Physics, University
of Warsaw, Pasteura 5 Street, 02-093 Warsaw, Poland
| | - Jan M. Antosiewicz
- Biophysics Division, Institute of Experimental
Physics, Faculty of Physics, University
of Warsaw, Pasteura 5 Street, 02-093 Warsaw, Poland
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12
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Subramaniam S, Elz A, Wignall A, Kamath S, Ariaee A, Hunter A, Newblack T, Wardill HR, Prestidge CA, Joyce P. Self-emulsifying drug delivery systems (SEDDS) disrupt the gut microbiota and trigger an intestinal inflammatory response in rats. Int J Pharm 2023; 648:123614. [PMID: 37979632 DOI: 10.1016/j.ijpharm.2023.123614] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 11/20/2023]
Abstract
Self-emulsifying drug delivery systems (i.e. SEDDS, SMEDDS and SNEDDS) are widely employed as solubility and bioavailability enhancing formulation strategies for poorly water-soluble drugs. Despite the capacity for SEDDS to effectively facilitate oral drug absorption, tolerability concerns exist due to the capacity for high concentrations of surfactants (typically present within SEDDS) to induce gastrointestinal toxicity and mucosal irritation. With new knowledge surrounding the role of the gut microbiota in modulating intestinal inflammation and mucosal injury, there is a clear need to determine the impact of SEDDS on the gut microbiota. The current study is the first of its kind to demonstrate the detrimental impact of SEDDS on the gut microbiota of Sprague-Dawley rats, following daily oral administration (100 mg/kg) for 21 days. SEDDS comprising a lipid phase (i.e. Type I, II and III formulations according to the Lipid Formulation Classification Scheme) induced significant changes to the composition and diversity of the gut microbiota, evidenced through a reduction in operational taxonomic units (OTUs) and alpha diversity (Shannon's index), along with statistically significant shifts in beta diversity (according to PERMANOVA of multi-dimensional Bray-Curtis plots). Key signatures of gut microbiota dysbiosis correlated with the increased expression of pro-inflammatory cytokines within the jejunum, while mucosal injury was characterised by significant reductions in plasma citrulline levels, a validated biomarker of enterocyte mass and mucosal barrier integrity. These findings have potential clinical ramifications for chronically administered drugs that are formulated with SEDDS and stresses the need for further studies that investigate dose-dependent effects of SEDDS on the gastrointestinal microenvironment in a clinical setting.
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Affiliation(s)
- Santhni Subramaniam
- Centre for Pharmaceutical Innovation (CPI), UniSA Clinical & Health Sciences, University of South Australia, South Australia, Australia
| | - Aurelia Elz
- Centre for Pharmaceutical Innovation (CPI), UniSA Clinical & Health Sciences, University of South Australia, South Australia, Australia
| | - Anthony Wignall
- Centre for Pharmaceutical Innovation (CPI), UniSA Clinical & Health Sciences, University of South Australia, South Australia, Australia
| | - Srinivas Kamath
- Centre for Pharmaceutical Innovation (CPI), UniSA Clinical & Health Sciences, University of South Australia, South Australia, Australia
| | - Amin Ariaee
- Centre for Pharmaceutical Innovation (CPI), UniSA Clinical & Health Sciences, University of South Australia, South Australia, Australia
| | - Alexander Hunter
- Centre for Pharmaceutical Innovation (CPI), UniSA Clinical & Health Sciences, University of South Australia, South Australia, Australia
| | - Tahlia Newblack
- Centre for Pharmaceutical Innovation (CPI), UniSA Clinical & Health Sciences, University of South Australia, South Australia, Australia
| | - Hannah R Wardill
- Supportive Oncology Research Group, Precision Cancer Medicine (Theme), South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide, South Australia, Australia
| | - Clive A Prestidge
- Centre for Pharmaceutical Innovation (CPI), UniSA Clinical & Health Sciences, University of South Australia, South Australia, Australia
| | - Paul Joyce
- Centre for Pharmaceutical Innovation (CPI), UniSA Clinical & Health Sciences, University of South Australia, South Australia, Australia.
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Rana AA, Yusaf A, Shahid S, Usman M, Ahmad M, Aslam S, Al-Hussain SA, Zaki MEA. Unveiling the Role of Nonionic Surfactants in Enhancing Cefotaxime Drug Solubility: A UV-Visible Spectroscopic Investigation in Single and Mixed Micellar Formulations. Pharmaceuticals (Basel) 2023; 16:1663. [PMID: 38139790 PMCID: PMC10747636 DOI: 10.3390/ph16121663] [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: 10/16/2023] [Revised: 11/18/2023] [Accepted: 11/22/2023] [Indexed: 12/24/2023] Open
Abstract
This study reports the interfacial phenomenon of cefotaxime in combination with nonionic surfactants, Triton X-100 (TX-100) and Tween-80 (TW-80), and their mixed micellar formulations. Cefotaxime was enclosed in a micellar system to improve its solubility and effectiveness. TX-100 and TW-80 were used in an amphiphilic self-assembly process to create the micellar formulation. The effect of the addition of TX-100, a nonionic surfactant, on the ability of TW-80 to solubilize the drug was examined. The values of the critical micelle concentration (CMC) were determined via UV-Visible spectroscopy. Gibbs free energies (ΔGp and ΔGb), the partition coefficient (Kx), and the binding constant (Kb) were also computed. In a single micellar system, the partition coefficient (Kx) was found to be 33.78 × 106 and 2.78 × 106 in the presence of TX-100 and TW-80, respectively. In a mixed micellar system, the value of the partition coefficient for the CEF/TW-80 system is maximum (5.48 × 106) in the presence of 0.0019 mM of TX-100, which shows that TX-100 significantly enhances the solubilizing power of micelles. It has been demonstrated that these surfactants are effective in enhancing the solubility and bioavailability of therapeutic compounds. This study elaborates on the physicochemical characteristics and solubilization of reactive drugs in single and mixed micellar media. This investigation, conducted in the presence of surfactants, shows a large contribution to the binding process via both hydrogen bonding and hydrophobic interactions.
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Affiliation(s)
- Aysha Arshad Rana
- Department of Chemistry, Government College Women University, Faisalabad 38000, Pakistan
| | - Amnah Yusaf
- Department of Chemistry, Government College Women University, Faisalabad 38000, Pakistan
| | - Salma Shahid
- Department of Biochemistry, Government College Women University, Faisalabad 38000, Pakistan
| | - Muhammad Usman
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Matloob Ahmad
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Sana Aslam
- Department of Chemistry, Government College Women University, Faisalabad 38000, Pakistan
| | - Sami A. Al-Hussain
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Magdi E. A. Zaki
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
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14
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Waters LJ, Whiteley J, Small W, Mellor S. Determining suitable surfactant concentration ranges to avoid protein unfolding in pharmaceutical formulations using UV analysis. Heliyon 2023; 9:e21712. [PMID: 37954313 PMCID: PMC10632529 DOI: 10.1016/j.heliyon.2023.e21712] [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: 03/03/2023] [Revised: 09/08/2023] [Accepted: 10/26/2023] [Indexed: 11/14/2023] Open
Abstract
Protein stability is fundamental to maintain pharmaceutical efficacy in the nascent field of biologics. One particular property that is essential for therapeutic effect is retention of the folded 3-dimensional conformation, i.e. once unfolding has occurred the biologic is often rendered inactive. In this work we propose a modified form of a recently published UV spectroscopic method that identifies protein unfolding. In this study we determine concentration limits to avoid protein unfolding of two model surfactants, namely polysorbate 20 and polysorbate 80, by correlating surfactant concentration with percentage 'unfolded' for three model proteins. For each scenario two distinct regions were observed, firstly surfactant concentrations at which no unfolding had occurred, followed by a second region whereby unfolding steadily increased with surfactant concentration. In general for the combinations analysed in this study, this second region began to appear around ten times below the critical micellar concentration of each surfactant, regardless of the protein or polysorbate chosen. It is therefore proposed that this adapted method could be used by researchers in the early stages of formulation development as a convenient and simple screening tool to confirm the 'onset of unfolding' concentration for protein-surfactant formulations, thus helping to optimise surfactant concentration selection in pharmaceutical formulations to maintain the benefits of surfactants yet avoid inadvertent unfolding.
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Affiliation(s)
- Laura J. Waters
- School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
| | - Joseph Whiteley
- School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
| | - William Small
- Croda Europe Ltd, Cowick Hall, Snaith, Goole, DN14 9AA, UK
| | - Steve Mellor
- Croda Europe Ltd, Cowick Hall, Snaith, Goole, DN14 9AA, UK
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15
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Chen R, Song Y, Wang Z, Ji H, Du Z, Ma Q, Yang Y, Liu X, Li N, Sun Y. Developments in small-angle X-ray scattering (SAXS) for characterizing the structure of surfactant-macromolecule interactions and their complex. Int J Biol Macromol 2023; 251:126288. [PMID: 37582436 DOI: 10.1016/j.ijbiomac.2023.126288] [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: 04/19/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/17/2023]
Abstract
The surfactant-macromolecule interactions (SMI) are one of the most critical topics for scientific research and industrial application. Small-angle X-ray scattering (SAXS) is a powerful tool for comprehensively studying the structural and conformational features of macromolecules at a size ranging from Angstroms to hundreds of nanometers with a time-resolve in milliseconds scale. The SAXS integrative techniques have emerged for comprehensively analyzing the SMI and the structure of their complex in solution. Here, the various types of emerging interactions of surfactant with macromolecules, such as protein, lipid, nuclear acid, polysaccharide and virus, etc. have been systematically reviewed. Additionally, the principle of SAXS and theoretical models of SAXS for describing the structure of SMI as well as their complex has been summarized. Moreover, the recent developments in the applications of SAXS for charactering the structure of SMI have been also highlighted. Prospectively, the capacity to complement artificial intelligence (AI) in the structure prediction of biological macromolecules and the high-throughput bioinformatics sequencing data make SAXS integrative structural techniques expected to be the primary methodology for illuminating the self-assembling dynamics and nanoscale structure of SMI. As advances in the field continue, we look forward to proliferating uses of SAXS based upon its abilities to robustly produce mechanistic insights for biology and medicine.
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Affiliation(s)
- Ruixin Chen
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Yang Song
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Zhichun Wang
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Hang Ji
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Zhongyao Du
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Qingwen Ma
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Ying Yang
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Xingxun Liu
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, Jiangsu, China
| | - Na Li
- National Facility for Protein Science in Shanghai, Shanghai Advanced Research Institute, CAS, Shanghai, China.
| | - Yang Sun
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China.
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16
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Bhalani D, Kakkad H, Modh J, Ray D, Aswal VK, Pillai SA. Molecular insights into the aggregation and solubilizing behavior of biocompatible amphiphiles Gelucire® 48/16 and Tetronics® 1304 in aqueous media. RSC Adv 2023; 13:28590-28601. [PMID: 37780735 PMCID: PMC10540152 DOI: 10.1039/d3ra04844f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/21/2023] [Indexed: 10/03/2023] Open
Abstract
A comparative analysis of the micellar and solubilizing properties of two polyethylene glycol (PEG)-based amphiphilic biocompatible excipients: Gelucire® 48/16 (Ge 48/16) and Tetronics® 1304 (T1304), in the presence and absence of salt, was conducted. As there is a dearth of research in this area, the study aims to shed light on the behavior of these two nonionic surfactants and their potential as nanocarriers for solubilizing pharmaceuticals. Various techniques such as cloud point (CP), dynamic light scattering (DLS), small-angle neutron scattering (SANS), Fourier transform infrared spectroscopy (FT-IR), UV spectrophotometry, and high-performance liquid chromatography (HPLC) were employed. The solubility of quercetin (QCT), a flavonoid with anti-inflammatory, antioxidant, and anti-cancer properties, was evaluated and the interaction between QCT and the micellar system was examined. The analysis revealed the occurrence of strong interactions between QCT and surfactant molecules, resulting in enhanced solubility. It was observed that the micellar size and solubilizing ability were significantly improved in the presence of salt, while the CP decreased. Ge 48/16 exhibited superior performance, with a remarkable increase in the solubility of QCT in the presence of salt, suggesting its potential as an effective nanocarrier for a range of pharmaceutics, and yielding better therapeutic outcomes.
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Affiliation(s)
- Deep Bhalani
- School of Sciences, P. P. Savani University NH-8, GETCO, Near Biltech, Kosamba Surat 394125 Gujarat India
| | - Hiral Kakkad
- School of Sciences, P. P. Savani University NH-8, GETCO, Near Biltech, Kosamba Surat 394125 Gujarat India
| | - Jignasa Modh
- School of Sciences, P. P. Savani University NH-8, GETCO, Near Biltech, Kosamba Surat 394125 Gujarat India
| | - Debes Ray
- Solid State Physics Division, Bhabha Atomic Research Centre (BARC) Mumbai 400085 Maharashtra India
- Biomacromolecular Systems and Processes, Institute of Biological Information Processing, Forschungszentrum Jülich Jülich 52428 Germany
| | - Vinod K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre (BARC) Mumbai 400085 Maharashtra India
| | - Sadafara A Pillai
- School of Sciences, P. P. Savani University NH-8, GETCO, Near Biltech, Kosamba Surat 394125 Gujarat India
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17
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Juhász Á, Ungor D, Varga N, Katona G, Balogh GT, Csapó E. Lipid-Based Nanocarriers for Delivery of Neuroprotective Kynurenic Acid: Preparation, Characterization, and BBB Transport. Int J Mol Sci 2023; 24:14251. [PMID: 37762551 PMCID: PMC10531491 DOI: 10.3390/ijms241814251] [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: 08/26/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Encapsulation possibilities of an extensively investigated neuroprotective drug (kynurenic acid, KYNA) are studied via lipid-based nanocarriers to increase the blood-brain barrier (BBB) specific permeability. The outcomes of various preparation conditions such as stirring and sonication time, concentration of the lipid carriers and the drug, and the drug-to-lipid ratio are examined. Considering the experimentally determined encapsulation efficiency, hydrodynamic diameter, and ζ-potential values, the initial lipid and drug concentration as well as the stirring and sonication time of the preparation were optimized. The average hydrodynamic diameter of the prepared asolectin-(LIP) and water-soluble lipopolymer (WSLP)-based liposomes was found to be ca. 25 and 60 nm under physiological conditions. The physicochemical characterization of the colloidal carriers proves that the preparation of the drug-loaded liposomes was a successful process, and secondary interactions were indicated between the drug molecule and the polymer residues around the WSLP membrane. Dissolution profiles of the active molecule under physiological conditions were registered, and the release of the unformulated and encapsulated drug is very similar. In addition to this outcome, the in vitro polar brain lipid extract (porcine)-based permeability test proved the achievement of two- or fourfold higher BBB specific penetration and lipid membrane retention for KYNA in the liposomal carriers relative to the unformatted drug.
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Affiliation(s)
- Ádám Juhász
- Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich B. Sqr. 1, H-6720 Szeged, Hungary;
- MTA-SZTE Lendület “Momentum” Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. Sqr. 1, H-6720 Szeged, Hungary;
| | - Ditta Ungor
- MTA-SZTE Lendület “Momentum” Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. Sqr. 1, H-6720 Szeged, Hungary;
| | - Norbert Varga
- Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich B. Sqr. 1, H-6720 Szeged, Hungary;
- MTA-SZTE Lendület “Momentum” Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. Sqr. 1, H-6720 Szeged, Hungary;
| | - Gábor Katona
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös Str. 6, H-6720 Szeged, Hungary;
| | - György T. Balogh
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre út 9, H-1092 Budapest, Hungary;
- Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, Műegyetem Rakpart 3, H-1111 Budapest, Hungary
| | - Edit Csapó
- Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich B. Sqr. 1, H-6720 Szeged, Hungary;
- MTA-SZTE Lendület “Momentum” Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. Sqr. 1, H-6720 Szeged, Hungary;
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18
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Tahir NAR, Rasul KS, Lateef DD. Effect of mixing oak leaf biomass with soil on cadmium toxicity and translocation in tomato genotypes. Heliyon 2023; 9:e18660. [PMID: 37576240 PMCID: PMC10413071 DOI: 10.1016/j.heliyon.2023.e18660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/17/2023] [Accepted: 07/24/2023] [Indexed: 08/15/2023] Open
Abstract
The environmental non-element cadmium (Cd) is toxic to all forms of life, and it also has a negative impact on plant development and growth. In order to ascertain the effects of cadmium on tomato growth and the function of oak leaf biomass in the reduction of toxicity and translocation of cadmium in different parts of tomato genotypes, two tolerant and two sensitive tomato genotypes were exposed to cadmium stress through the availability or unavailability of oak leaf biomass. The experiment involved two factors. The first factor was the various treatment levels, including soil without Cd treatment and sodium hydroxide (NaOH) oak leaf biomass pretreatment (COC-control), soil with Cd treatment and without NaOH oak leaf biomass pretreatment (CdC), and soil with Cd treatment and NaOH oak leaf biomass pretreatment (CdOBC). The second element consists of four tomato genotypes. Comparing to control conditions, all tomato genotypes spotted significant reductions in all morphological traits under Cd stress in the presence or absence of NaOH oak leaf pretreatment. Related to CdC conditions, root length, shoot length, root fresh weight per plant, shoot fresh weight per plant, root dry weight per plant, shoot dry weight per plant, and total fruit weight per plant were significantly improved by 4.25%, 9.75%, 23.24%, 10.10%, 28.10%, 9.08%, and 4.61%, respectively, under the availability of pretreatment of oak leaf biomass. The tolerant genotypes (Karazi and Sirin) exhibited the greatest increase in all traits evaluated, with the exception of root length, under the CdOBC condition compared to the CdC statement. Significant increases in leaf biochemical parameters were seen with the availability or absence of NaOH pretreatment of oak leaf biomass in the soil. The maximum values of proline content, soluble sugar content, antioxidant activity, and guaiacol peroxidase were stated in the presence of oak biomass under Cd conditions (CdOBC), with mean values of 1772.46 μg g -1, 687.18 μg g -1, 1025.74 μg g -1-, and 0.43 units min -1 g -1, respectively. The in vitro-tolerant genotypes exhibited the maximum values of all biochemical parameters. The concentration of cadmium in the studied tomato genotypes revealed that cadmium accumulated more in the roots than other parts. According to these outcomes, NaOH pretreatment of oak leaf biomass can be employed to diminish the hazard of cadmium absorption by edible parts.
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Affiliation(s)
- Nawroz Abdul-razzak Tahir
- Horticulture Department, College of Agricultural Engineering Sciences, University of Sulaimani, Sulaimani, 46001, Iraq
| | - Kamaran Salh Rasul
- Horticulture Department, College of Agricultural Engineering Sciences, University of Sulaimani, Sulaimani, 46001, Iraq
| | - Djshwar Dhahir Lateef
- Biotechnology and Crop Science Department, College of Agricultural Engineering Sciences, University of Sulaimani, Sulaimani, 46001, Iraq
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19
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Brosig S, Cucuzza S, Serno T, Bechtold-Peters K, Buecheler J, Zivec M, Germershaus O, Gallou F. Not the Usual Suspects: Alternative Surfactants for Biopharmaceuticals. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37450418 DOI: 10.1021/acsami.3c05610] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Therapeutically relevant proteins naturally adsorb to interfaces, causing aggregation which in turn potentially leads to numerous adverse consequences such as loss of activity or unwanted immunogenic reactions. Surfactants are ubiquitously used in biotherapeutics drug development to oppose interfacial stress, yet, the choice of the surfactant is extremely limited: to date, only polysorbates (PS20/80) and poloxamer 188 are used in commercial products. However, both surfactant families suffer from severe degradation and impurities of the raw material, which frequently increases the risk of particle generation, chemical protein degradation, and potential adverse immune reactions. Herein, we assessed a total of 40 suitable alternative surfactant candidates and subsequently performed a selection through a three-gate screening process employing four protein modalities encompassing six different formulations. The screening is based on short-term agitation-induced aggregation studies coupled to particle analysis and surface tension characterization, followed by long-term quiescence stability studies connected to protein purity measurements and particle analysis. The study concludes by assessing the surfactant's chemical and enzymatic degradation propensity. The candidates emerging from the screening are de novo α-tocopherol-derivatives named VEDG-2.2 and VEDS, produced ad hoc for this study. They display protein stabilization potential comparable or better than polysorbates together with an increased resistance to chemical and enzymatic degradation, thus representing valuable alternative surfactants for biotherapeutics.
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Affiliation(s)
- Sebastian Brosig
- Novartis Pharma AG, GDD, TRD Biologics & CGT, Basel CH-4002, Switzerland
| | - Stefano Cucuzza
- Novartis Pharma AG, GDD, TRD Biologics & CGT, Basel CH-4002, Switzerland
| | - Tim Serno
- Novartis Pharma AG, GDD, TRD Biologics & CGT, Basel CH-4002, Switzerland
| | | | - Jakob Buecheler
- Novartis Pharma AG, GDD, TRD Biologics & CGT, Basel CH-4002, Switzerland
| | - Matej Zivec
- Novartis Pharma AG, GDD, TRD Biologics & CGT, Menges 1234, Slovenia
| | - Oliver Germershaus
- School of Life Sciences, University of Applied Sciences Northwestern Switzerland, Hofackerstrasse 30, Muttenz 4132, Switzerland
| | - Fabrice Gallou
- Novartis Pharma AG, GDD, CHAD, Basel CH-4057, Switzerland
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20
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Wu X, Boulos S, Syryamina V, Nyström L, Yulikov M. Interaction of barley β-glucan with food dye molecules - An insight from pulse dipolar EPR spectroscopy. Carbohydr Polym 2023; 309:120698. [PMID: 36906364 DOI: 10.1016/j.carbpol.2023.120698] [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: 11/23/2022] [Revised: 01/25/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023]
Abstract
The interactions between dietary fibers (DFs) and small molecules are of great interest to food chemistry and nutrition science. However, the corresponding interaction mechanisms and structural rearrangements of DFs at the molecular level are still opaque due to the usually weak binding and the lack of appropriate techniques to determine details of conformational distributions in such weakly organized systems. By combining our previously established methodology on stochastic spin-labelling of DFs with the appropriately revised set of pulse electron paramagnetic resonance techniques, we present here a toolkit to determine the interactions between DFs and small molecules, using barley β-glucan as an example for neutral DF and a selection of food dye molecules as examples for small molecules. The proposed here methodology allowed us to observe subtle conformational changes of β-glucan by detecting multiple details of the local environment of the spin labels. Substantial variations of binding propensities were detected for different food dyes.
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Affiliation(s)
- Xiaowen Wu
- Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland.
| | - Samy Boulos
- Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland.
| | - Victoria Syryamina
- Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland; Voevodsky Institute of Chemical Kinetics and Combustion, 630090 Novosibirsk, Russia.
| | - Laura Nyström
- Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland.
| | - Maxim Yulikov
- Laboratory of Physical Chemistry, ETH Zürich, Wolfgang-Pauli-Str. 10, 8093 Zürich, Switzerland.
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21
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Puelles JS, Ghorbani M, Tuck B, Machuca LL, Ackland ML, Chen F, Somers AE, Forsyth M. Effect of cetrimonium carrier micelles on bacterial membranes and extracellular DNA, an in silico study. Sci Rep 2023; 13:8041. [PMID: 37198168 DOI: 10.1038/s41598-023-32475-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 03/28/2023] [Indexed: 05/19/2023] Open
Abstract
Microorganisms do not live as dispersed single cells but rather they form aggregates with extracellular polymeric substances at interfaces. Biofilms are considered efficient life forms because they shield bacteria from biocides and collect dilute nutrients. This is a big concern in industry since the microorganisms can colonize a wide range of surfaces, accelerating material deterioration, colonizing medical devices, contaminating ultrapure drinking water, increasing energy costs and creating focus of infection. Conventional biocides that target a specific component of the bacteria are not effective in the presence of biofilms. Efficient biofilm inhibitors are based on a multitarget approach interacting with the bacteria and the biofilm matrix. Their rationale design requires a thorough understanding of inhibitory mechanisms that are still largely lacking today. Herein we uncover via molecular modelling the inhibition mechanism of cetrimonium 4-OH cinnamate (CTA-4OHcinn). Simulations show that CTA-4OH micelles can disrupt symmetric and asymmetric bilayers, representative of inner and outer bacterial membranes, following three stages: adsorption, assimilation, and defect formation. The main driving force for micellar attack is electrostatic interactions. In addition to disrupting the bilayers, the micelles work as carriers facilitating the trapping of 4OH cinnamate anions within the bilayer upper leaflet and overcoming electrostatic repulsion. The micelles also interact with extracellular DNA (e-DNA), which is one of the main components of biofilms. It is observed that CTA-4OHcinn forms spherical micelles on the DNA backbone; which hinders their ability to pack. This is demonstrated by modelling the DNA along the hbb histone-like protein, showing that in the presence of CTA-4OHcinn, DNA does not pack properly around hbb. The abilities of CTA-4OHcinn to cause cell death through membrane disruption and to disperse a mature, multi-species biofilm are also confirmed experimentally.
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Affiliation(s)
| | - Mahdi Ghorbani
- Institute for Frontier Materials, Deakin University, Geelong, VIC, 3217, Australia
| | - Benjamin Tuck
- Curtin Corrosion Centre, WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Kent Street, Bentley, WA, 6102, Australia
| | - Laura L Machuca
- Curtin Corrosion Centre, WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Kent Street, Bentley, WA, 6102, Australia
| | - M Leigh Ackland
- ARC Centre of Excellence for Electromaterials Science (ACES), Deakin University, Burwood, 3125, Australia
- School of Life and Environmental Sciences, Deakin University, Burwood, Victoria, 3125, Australia
| | - Fangfang Chen
- Institute for Frontier Materials, Deakin University, Geelong, VIC, 3217, Australia.
- ARC Centre of Excellence for Electromaterials Science (ACES), Deakin University, Burwood, 3125, Australia.
| | - Anthony E Somers
- Institute for Frontier Materials, Deakin University, Geelong, VIC, 3217, Australia.
| | - Maria Forsyth
- Institute for Frontier Materials, Deakin University, Geelong, VIC, 3217, Australia.
- ARC Centre of Excellence for Electromaterials Science (ACES), Deakin University, Burwood, 3125, Australia.
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22
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Chen Y, Li M, Kong J, Liu J, Zhang Q. Molecular Interaction Mechanism and Preservative Effect of Lactone Sophorolipid and Lactoferrin/ β-Lactoglobulin Systems. Foods 2023; 12:foods12081561. [PMID: 37107357 PMCID: PMC10137667 DOI: 10.3390/foods12081561] [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: 02/27/2023] [Revised: 04/02/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Multispectral and molecular docking methods were used to study the interaction mode and mechanism of two important components of whey proteins, lactoferrin (LF) and β-lactoglobulin (β-LG), and of a lactone sophorolipid (LSL) mixed system. The preservation effect of the mixed system on milk was also studied and compared. The results showed that the quenching mechanism of LSL on both β-LG and LF was static, but that the non-covalent complexes formed were the result of the different interacting forces: hydrogen bonds and the van der Waals force for the LSL-β-LG system, and electrostatic force for the LSL-LF system. The binding constants of LSL-β-LG and LSL-LF were all relatively small, and the interaction of LSL with β-LG was stronger than its interaction with LF. After adding β-LG, LF, or the mixed system with LSL to the milk, the stability of milk emulsion was effectively improved in all cases, while the preservative ability was effectively enhanced only by the addition of LF or LSL-LF. These results provide supportive data and a theoretical basis for enhancing the production of dairy products and other byproducts.
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Affiliation(s)
- Yanrong Chen
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Mingyuan Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Jing Kong
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Qian Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
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23
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Khanna A, Handa S, Rana S, Suttee A, Puri S, Chatterjee M. Biosurfactant from Candida: sources, classification, and emerging applications. Arch Microbiol 2023; 205:149. [PMID: 36995448 DOI: 10.1007/s00203-023-03495-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 03/13/2023] [Accepted: 03/19/2023] [Indexed: 03/31/2023]
Abstract
Biosurfactants are surface-active molecules that are synthesized by many microorganisms like fungi, bacteria, and yeast. These molecules are amphiphilic in nature, possessing emulsifying ability, detergency, foaming, and surface-activity like characteristics. Yeast species belongs to the genus Candida has gained globally enormous interest because of the diverse properties of biosurfactants produced by theme. In contrast to synthetic surfactants, biosurfactants are claimed to be biodegradable and non-toxic which labels them as a potent industrial compound. Biosurfactants produced by this genus are reported to possess certain biological activities, such as anticancer and antiviral activities. They also have potential industrial applications in bioremediation, oil recovery, agricultural, pharmaceutical, biomedical, food, and cosmetic industries. Various species of Candida have been recognized as biosurfactant producers, including Candida petrophilum, Candida bogoriensis, Candida antarctica, Candida lipolytica, Candida albicans, Candida batistae, Candida albicans, Candida sphaerica, etc. These species produce various forms of biosurfactants, such as glycolipids, lipopeptides, fatty acids, and polymeric biosurfactants, which are distinct according to their molecular weights. Herein, we provide a detailed overview of various types of biosurfactants produced by Candida sp., process optimization for better production, and the latest updates on the applications of these biosurfactants.
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Affiliation(s)
- Archna Khanna
- Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Sector 25, South Campus, Chandigarh, 160014, India
| | - Shristi Handa
- Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Sector 25, South Campus, Chandigarh, 160014, India
| | - Samriti Rana
- Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Sector 25, South Campus, Chandigarh, 160014, India
| | - Ashish Suttee
- Department of Pharmacognosy, School of Pharmaceutical Sciences, Lovely Professional University, Punjab, India
| | - Sanjeev Puri
- Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Sector 25, South Campus, Chandigarh, 160014, India
| | - Mary Chatterjee
- Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Sector 25, South Campus, Chandigarh, 160014, India.
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Gugleva V, Andonova V. Recent Progress of Solid Lipid Nanoparticles and Nanostructured Lipid Carriers as Ocular Drug Delivery Platforms. Pharmaceuticals (Basel) 2023; 16:ph16030474. [PMID: 36986574 PMCID: PMC10058782 DOI: 10.3390/ph16030474] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/12/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Sufficient ocular bioavailability is often considered a challenge by the researchers, due to the complex structure of the eye and its protective physiological mechanisms. In addition, the low viscosity of the eye drops and the resulting short ocular residence time further contribute to the observed low drug concentration at the target site. Therefore, various drug delivery platforms are being developed to enhance ocular bioavailability, provide controlled and sustained drug release, reduce the number of applications, and maximize therapy outcomes. Solid lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs) exhibit all these benefits, in addition to being biocompatible, biodegradable, and susceptible to sterilization and scale-up. Furthermore, their successive surface modification contributes to prolonged ocular residence time (by adding cationic compounds), enhanced penetration, and improved performance. The review highlights the salient characteristics of SLNs and NLCs concerning ocular drug delivery, and updates the research progress in this area.
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Affiliation(s)
- Viliana Gugleva
- Department of Pharmaceutical Technologies, Faculty of Pharmacy, Medical University of Varna, 55 Marin Drinov Str., 9000 Varna, Bulgaria
| | - Velichka Andonova
- Department of Pharmaceutical Technologies, Faculty of Pharmacy, Medical University of Varna, 55 Marin Drinov Str., 9000 Varna, Bulgaria
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AlResaini S, Malik A, Alonazi M, Alhomida A, Khan JM. SDS induces amorphous, amyloid-fibril, and alpha-helical structures in the myoglobin in a concentration-dependent manner. Int J Biol Macromol 2023; 231:123237. [PMID: 36639087 DOI: 10.1016/j.ijbiomac.2023.123237] [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: 11/14/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/12/2023]
Abstract
Amyloid fibrils have been linked to a number of diseases. Surfactants imitate plasma membrane lipids and induce amyloid fibrils. This study examined the effects of the anionic surfactant sodium dodecyl sulfate (SDS) at pH 4.5 on equine skeletal muscle myoglobin (E-Mb). To analyze the effect of SDS on aggregation and amyloid-fibril formation to E-Mb, we used various spectroscopic techniques (turbidity, light scattering, intrinsic fluorescence, ThT fluorescence, and circular dichroism (CD)), electrophoretic, and microscopic techniques. Turbidity, SDS-PAGE, and light scattering all indicated the formation of E-Mb aggregates at SDS concentrations ranging from 0.2 mM to 1.0 mM. In the presence of 0.4 mM SDS, far-UV CD and TEM data indicate that E-MB forms amorphous aggregates. ThT binding, Far-UV CD, and TEM findings indicate that E-Mb forms amyloid-like structures in the presence of 0.6-1.0 mM SDS. However, no aggregation was seen at SDS concentrations above 1 mM. In the presence of high SDS concentrations (> 1 mM), the E-Mb exhibited native-like α-helical structure. As a result, SDS exhibited three distinct behaviors: amorphous aggregates, amyloid-fibrils, and helix-inducer. These findings also shed light on how amyloid fibrils are formed when anionic surfactants are introduced, which is a significant takeaway.
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Affiliation(s)
- Sundus AlResaini
- Department of Biochemistry, Collage of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ajamaluddin Malik
- Department of Biochemistry, Collage of Science, King Saud University, Riyadh, Saudi Arabia.
| | - Mona Alonazi
- Department of Biochemistry, Collage of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah Alhomida
- Department of Biochemistry, Collage of Science, King Saud University, Riyadh, Saudi Arabia
| | - Javed Masood Khan
- Department of Food and Nutrition, Facility of Food and Agriculture Science, King Saud University, Riyadh, Saudi Arabia
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Rai R, Nitin N. Apple-derived 3D scaffold for improving gastrointestinal viability and in-situ growth of probiotics. Food Res Int 2023; 168:112758. [PMID: 37120209 DOI: 10.1016/j.foodres.2023.112758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 02/21/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023]
Abstract
This study develops a novel low-cost microbial delivery system by transforming common food materials such as apple tissue into a 3D scaffold. Apple tissue scaffold was constructed by decellularization of intact tissue using a minimal amount of sodium dodecyl sulfate (0.5 % w/v). Vacuum-assisted infusion of model probiotic Lactobacillus cells led to a high encapsulation yield of probiotic cells (1010 CFU/g of scaffold) in 3D scaffolds on a wet basis. The bio-polymer coated 3D scaffolds with infused cells significantly enhanced the survivability of infused probiotic cells during simulated gastric and intestinal digestions. In addition, imaging and plate counting results validate the growth of the infused cells in the 3D scaffold after 1-2 days of fermentation in MRS media, while cells without infusion in the scaffold had limited attachment with the intact apple tissue. Overall, these results highlight the potential of the apple tissue-derived 3D scaffold to deliver probiotic cells and include the biochemical compositions to support the growth of delivered microbial cells in the colon.
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Alamri A, Alqahtani A, Alqahtani T, Al Fatease A, Asiri SA, Gahtani RM, Alnasser SM, Mohamed JMM, Menaa F. Design, Physical Characterizations, and Biocompatibility of Cationic Solid Lipid Nanoparticles in HCT-116 and 16-HBE Cells: A Preliminary Study. Molecules 2023; 28:molecules28041711. [PMID: 36838699 PMCID: PMC9968044 DOI: 10.3390/molecules28041711] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/11/2023] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
In this study, pEGFP-LUC was used as a model plasmid and three distinct cationic lipids (dioleyloxy-propyl-trimethylammonium chloride [DOTMA], dioleoyl trimethylammonium propane [DOTAP], and cetylpyridinium chloride [CPC]) were tested along with PEG 5000, as a nonionic surfactant, to prepare glyceryl monostearate (GMS)-based cationic solid lipid nanoparticles (cSLNs). Both the type and quantity of surfactant had an impact on the physicochemical characteristics of the cSLNs. Thermal analysis of the greater part of the endothermic peaks of the cSLNs revealed they were noticeably different from the individual pure compounds based on their zeta potential (ZP ranging from +17 to +56 mV) and particle size (PS ranging from 185 to 244 nm). The addition of cationic surfactants was required to produce nanoparticles (NPs) with a positive surface charge. This suggested that the surfactants and extensive entanglement of the lipid matrix GMS provided support for the behavioral diversity of the cSLNs and their capacity to interface with the plasmid DNA. Additionally, hemolytic assays were used to show that the cSLNs were biocompatible with the human colon cancer HCT-116 and human bronchial epithelial 16-HBE cell lines. The DOTMA 6-based cSLN was selected as the lead cSLN for further ex vivo and in vivo investigations. Taken together, these new findings might provide some guidance in selecting surfactants to prepare extremely efficient and non-toxic cSLN-based therapeutic delivery systems (e.g., gene therapy).
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Affiliation(s)
- Ali Alamri
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Guraiger, Abha 62529, Saudi Arabia
| | - Ali Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Guraiger, Abha 62529, Saudi Arabia
| | - Taha Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Guraiger, Abha 62529, Saudi Arabia
| | - Adel Al Fatease
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Guraiger, Abha 62529, Saudi Arabia
| | - Saeed Ahmed Asiri
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, Najran 61441, Saudi Arabia
| | - Reem M. Gahtani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha 61421, Saudi Arabia
| | - Sulaiman Mohammed Alnasser
- Department of Pharmacology and Toxicology, Unaizah College of Pharmacy, Qassim University, Buraydah 52571, Saudi Arabia
| | - Jamal Moideen Muthu Mohamed
- Vaasudhara College of Pharmacy, Sante Circle, Chintamani Road, Hoskote 562114, Karnataka, India
- Correspondence: (J.M.M.M.); (F.M.)
| | - Farid Menaa
- Departments of Medicine and Nanomedicine, California Innovations Corporation, San Diego, CA 92037, USA
- Correspondence: (J.M.M.M.); (F.M.)
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Potapov K, Gordeev A, Biktasheva L, Rudakova M, Alexandrov A. Effects of Natural Rhamnolipid Mixture on Dioleoylphosphatidylcholine Model Membrane Depending on Method of Preparation and Sterol Content. MEMBRANES 2023; 13:112. [PMID: 36676919 PMCID: PMC9865241 DOI: 10.3390/membranes13010112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Rhamnolipids as biosurfactants have a potentially wide range of applications, for example, as "green" surfactants or components of drug delivery systems, which is associated with the features of their interaction with cell membranes. However, as noted in the literature, those kind of features have not been sufficiently studied now. This paper presents a study of the interaction of a natural mixture of rhamnolipids produced by bacteria of the rhizosphere zone of plants Pseudomonas aeruginosa with model membranes-liposomes based on dioleoylphosphatidylcholine (DOPC), depending on the method of their preparation and the content of sterols-ergosterol, cholesterol, lanosterol. Liposomes with rhamnolipids were prepared by two protocols: with film method from a mixture of DOPC and rhamnolipids; with film method from DOPC and injection of water solution of rhamnolipids. Joint analysis of the data of 31P NMR spectroscopy and ATR-FTIR spectroscopy showed that in the presence of rhamnolipids, the mobility of the head group of the DOPC phospholipid increases, the conformational disorder of the hydrophobic tail increases, and the degree of hydration of the C=O and P=O groups of the phospholipid decreases. It can be assumed that, when prepared from a mixture, rhamnolipids are incorporated into the membrane in the form of clusters and are located closer to the middle of the bilayer; while when prepared by injection, rhamnolipid molecules migrate into the membrane in the form of individual molecules and are located closer to the head part of phospholipids. The sterol composition of the model membrane also affects the interaction of rhamnolipids with the membrane. Here it is worth noting the possible presence of type of interaction between rhamnolipids and ergosterol differ from other investigated sterols, due to which rhamnolipid molecules are embedded in the area where ergosterol is located.
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Affiliation(s)
- Konstantin Potapov
- Department of Molecular Physics, Institute of Physics, Kazan Federal University, 420011 Kazan, Russia
| | - Alexander Gordeev
- Institute of Environmental Sciences, Kazan Federal University, 420011 Kazan, Russia
| | - Liliya Biktasheva
- Institute of Environmental Sciences, Kazan Federal University, 420011 Kazan, Russia
| | - Maya Rudakova
- Institute of Information Technology and Intelligent Systems, Kazan Federal University, 420011 Kazan, Russia
| | - Artem Alexandrov
- Department of Molecular Physics, Institute of Physics, Kazan Federal University, 420011 Kazan, Russia
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Toxic Effect of Anionic Surfactants on Freshwater Sponge Lubomirskia baikalensis and Its Endosymbiotic Microalgae Chlorella sp. DIVERSITY 2023. [DOI: 10.3390/d15010077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A number of reports on sponge diseases, including from Lake Baikal, have increased dramatically all over the world in recent years. Herewith, there are various hypotheses for sponge mortality. Lubomirskia baikalensis (phylum Porifera, order Spongillida) is a unique endemic freshwater sponge of Lake Baikal that contains a complex community of eukaryotic and prokaryotic endosymbiotic microorganisms. In this work, we present the first results for the effect of anionic surfactants viz. linear alkylbenzene sulphonates (LAS) at low 10 and 20 µg L−1 concentrations on Baikal sponge species and their symbiotic community as an experimental model. A new toxicity test protocol under conditions close to natural is proposed. It uses the sponge amoebocytes called as SA1-cells, which contain eukaryotic green microalgae Chlorella sp. These SA1-cells are shown to be representative indicator in assessing the impact of anionic surfactants. The acute toxic effect resulted in 97–100% sponge cell death in less than 48 h, as well as 100% symbiotic microalgae Chlorella sp. death over 72 h was noted under LAS solution (20 μg L−1) exposure during in vivo experiments. This includes the cell membrane fatty acid changes, change in the cell sizes, cell swelling, and lysis. Long term exposure to LAS solution (10 μg L−1) reflected in cellular stress (oxidative stress) and accompanied by malondialdehyde formation (0.16–2.0 μg g−1 of dry weight) during 14-day exposure was noted. Oxidative stress and mortality of L. baikalensis are associated with their low antioxidant activity. Trolox-equivalent antioxidant capacity (TEAC) found in the range from 0.00031 to 0.00077 Trolox equivalents for these freshwater sponges.
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Yoon BK, Tan SW, Tan JYB, Jackman JA, Cho NJ. Nanoarchitectonics-based model membrane platforms for probing membrane-disruptive interactions of odd-chain antimicrobial lipids. NANO CONVERGENCE 2022; 9:48. [PMID: 36318349 PMCID: PMC9626702 DOI: 10.1186/s40580-022-00339-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
The use of nanoscience tools to investigate how antimicrobial lipids disrupt phospholipid membranes has greatly advanced molecular-level biophysical understanding and opened the door to new application possibilities. Until now, relevant studies have focused on even-chain antimicrobial lipids while there remains an outstanding need to investigate the membrane-disruptive properties of odd-chain antimicrobial lipids that are known to be highly biologically active. Herein, using the quartz crystal microbalance-dissipation (QCM-D) and electrochemical impedance spectroscopy (EIS) techniques, we investigated how an 11-carbon, saturated fatty acid and its corresponding monoglyceride-termed undecanoic acid and monoundecanoin, respectively-disrupt membrane-mimicking phospholipid bilayers with different nanoarchitectures. QCM-D tracking revealed that undecanoic acid and monoundecanoin caused membrane tubulation and budding from supported lipid bilayers, respectively, and were only active above their experimentally determined critical micelle concentration (CMC) values. Monoundecanoin was more potent due to a lower CMC and electrochemical impedance spectroscopy (EIS) characterization demonstrated that monoundecanoin caused irreversible membrane disruption of a tethered lipid bilayer platform at sufficiently high compound concentrations, whereas undecanoic acid only induced transient membrane disruption. This integrated biophysical approach also led us to identify that the tested 11-carbon antimicrobial lipids cause more extensive membrane disruption than their respective 12-carbon analogues at 2 × CMC, which suggests that they could be promising molecular components within next-generation antimicrobial nanomedicine strategies.
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Affiliation(s)
- Bo Kyeong Yoon
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- School of Chemical Engineering and Translational Nanobioscience Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- School of Healthcare and Biomedical Engineering, Chonnam National University, Yeosu, 59626, Republic of Korea
| | - Sue Woon Tan
- School of Chemical Engineering and Translational Nanobioscience Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jia Ying Brenda Tan
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Joshua A Jackman
- School of Chemical Engineering and Translational Nanobioscience Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Nam-Joon Cho
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
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Tan S, Li Q, Guo L, Wang Y, Zhong W. Investigation of foaming behavior in herbal extracts via the characterization of solution environment for reverse osmosis concentration. FOOD AND BIOPRODUCTS PROCESSING 2022. [DOI: 10.1016/j.fbp.2022.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Pardhi VP, Suthar T, Sharma A, Jain K. Bedaquiline fumarate microemulsion: formulation optimization, rheological characterization and in vitro studies. Nanomedicine (Lond) 2022; 17:1529-1546. [PMID: 36416115 DOI: 10.2217/nnm-2022-0132] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Aim: Bedaquiline fumarate (BQF), an antitubercular drug, shows limited bioavailability due to solubility-limited intestinal absorption. In this research, the authors formulated a BQF-loaded microemulsion to improve BQF's oral bioavailability. Methods: Microemulsion was prepared by a spontaneous emulsification method and evaluated for thermodynamic stability, size, dispersibility, transmittance, rheology, microrheology, drug release, cytotoxicity and cellular uptake. Results: Microemulsion showed an average globule size of 26.50 ± 6.29 nm with spherical geometry and revealed gel-sol-gel behavior in microrheological studies. Cytotoxicity and cell uptake studies in Caco-2 cells showed that BQF microemulsion was cytocompatible at the highest concentration of 500 μg/ml with significantly higher cellular uptake than control. Conclusion: The present study indicates that BQF microemulsion could be explored further for effective treatment of multidrug-resistant tuberculosis.
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Affiliation(s)
- Vishwas P Pardhi
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research (NIPER)-Raebareli, Lucknow, Uttar Pradesh, 226002, India
| | - Teeja Suthar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research (NIPER)-Raebareli, Lucknow, Uttar Pradesh, 226002, India
| | - Ankita Sharma
- Department of Biotechnology, National Institute of Pharmaceutical Education & Research (NIPER)-Raebareli, Lucknow, Uttar Pradesh, 226002, India
| | - Keerti Jain
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research (NIPER)-Raebareli, Lucknow, Uttar Pradesh, 226002, India
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Wang X, Chan V, Corridon PR. Decellularized blood vessel development: Current state-of-the-art and future directions. Front Bioeng Biotechnol 2022; 10:951644. [PMID: 36003539 PMCID: PMC9394443 DOI: 10.3389/fbioe.2022.951644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/14/2022] [Indexed: 12/31/2022] Open
Abstract
Vascular diseases contribute to intensive and irreversible damage, and current treatments include medications, rehabilitation, and surgical interventions. Often, these diseases require some form of vascular replacement therapy (VRT) to help patients overcome life-threatening conditions and traumatic injuries annually. Current VRTs rely on harvesting blood vessels from various regions of the body like the arms, legs, chest, and abdomen. However, these procedures also produce further complications like donor site morbidity. Such common comorbidities may lead to substantial pain, infections, decreased function, and additional reconstructive or cosmetic surgeries. Vascular tissue engineering technology promises to reduce or eliminate these issues, and the existing state-of-the-art approach is based on synthetic or natural polymer tubes aiming to mimic various types of blood vessel. Burgeoning decellularization techniques are considered as the most viable tissue engineering strategy to fill these gaps. This review discusses various approaches and the mechanisms behind decellularization techniques and outlines a simplified model for a replacement vascular unit. The current state-of-the-art method used to create decellularized vessel segments is identified. Also, perspectives on future directions to engineer small- (inner diameter >1 mm and <6 mm) to large-caliber (inner diameter >6 mm) vessel substitutes are presented.
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Affiliation(s)
- Xinyu Wang
- Biomedical Engineering and Healthcare Engineering Innovation Center, Khalifa University, Abu Dhabi, United Arab Emirates
- Department of Immunology and Physiology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Vincent Chan
- Biomedical Engineering and Healthcare Engineering Innovation Center, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Peter R. Corridon
- Department of Immunology and Physiology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University, Abu Dhabi, United Arab Emirates
- *Correspondence: Peter R. Corridon,
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Wahba M, El Sherbiny D, El Enany N, Draz ME. Tracing the influence of caffeine on the pharmacokinetic parameters of three headache relieving pharmaceuticals applying synchronous fluorescence spectroscopy. Methods Appl Fluoresc 2022; 10. [PMID: 35905742 DOI: 10.1088/2050-6120/ac859a] [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: 03/23/2022] [Accepted: 07/29/2022] [Indexed: 11/12/2022]
Abstract
A simple, sensitive, and selective first derivative synchronous fluorimetric method was developed and optimized to track the influence of caffeine content in beverages on the pharmacokinetic parameters of three pharmaceuticals used in relieving headache namely, aspirin (ASP), ibuprofen (IBU), and ergotamine tartrate (ERG). A full validation procedure was carried out to impart validity to the proposed method to apply it to biological fluids. The unique dissolving power of micellar solutions was utilized to avoid multiple extraction steps for both the in vitro and in vivo experiments, aiming to obtain acceptable recoveries and to accomplish sustainability, where 0.1 M sodium dodecyl sulphate (SDS) was used for this purpose. Moreover, the developed bioanalytical method was subjected to full validation to avoid interferences emerging from biological matrices. The greenness of the proposed method was assessed according to the Analytical Eco-Scale and proved to be excellent green carrying a score of 98%.
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Affiliation(s)
- Mary Wahba
- Department of Pharmaceutical Chemistry, Delta University for Science and Technology, gamasa, gamasa, 35712, EGYPT
| | - Dina El Sherbiny
- Department of Pharmaceutical Chemistry, Delta University for Science and Technology, gamasa, Belkas, 35712, EGYPT
| | - Nahed El Enany
- Department of Pharmaceutical Analytical Chemistry, Mansoura University, gehan street, Mansoura, 35516, EGYPT
| | - Mohammed E Draz
- Department of Pharmaceutical Chemistry, Delta University for Science and Technology, gamasa, Belkas, 35712, EGYPT
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Stachurska K, Marcisz U, Długosz M, Antosiewicz JM. Circular Dichroism Spectra of α-Chymotrypsin-SDS Solutions Depend on the Procedure of Their Preparation. ACS OMEGA 2022; 7:23782-23789. [PMID: 35847307 PMCID: PMC9280762 DOI: 10.1021/acsomega.2c02438] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We recorded the far- and near-UV circular dichroism (CD) spectra of solutions of α-chymotrypsin and sodium dodecyl sulfate (SDS) with the final surfactant concentration significantly above the critical micellization concentration. Solutions were prepared using three different procedures. The reference procedure was to mix the chymotrypsin solution with the SDS solution once, immediately achieving the final SDS concentration. In alternative procedures, the protein solutions initially contained some SDS and were mixed with pure SDS solutions at a concentration to provide the same final surfactant as the reference mixing. We demonstrate that the supplementation to the selected final concentration of SDS of the pure chymotrypsin solution leads to different CD spectra than the supplementation to this final concentration of SDS in the chymotrypsin solution containing a small concentration of a few millimolar SDS. These differences disappear when the initial concentration of SDS in the protein solution, which we then supplement to the indicated final concentration, is higher. This suggests the irreversibility of the processes caused by the addition of SDS to chymotrypsin and the influence of the initial amount of this surfactant on the processes occurring with its further addition to the solution. For quantitative analysis of far-UV CD spectra in terms of populations of protein secondary structure elements, we used four well-established software packages. All programs consistently indicate that the observed differences in the far-UV CD spectra can be explained by the differences in the increase in the population of helical forms in chymotrypsin under the influence of SDS.
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36
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Phenotypic and Gene Expression Profiles of Embryo Development of the Ascidian Ciona robusta Exposed to Dispersants. WATER 2022. [DOI: 10.3390/w14101539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Within EU approval policies, most dispersant ecotoxicity testing considers lethal concentrations for marine adult species, overlooking the embryotoxicological effects. Here we studied the ecotoxicity of two commercial dispersant formulations (dispersant A and B) on the embryogenesis of the ascidian Ciona robusta. Embryotoxicity and phenotypic alterations stated that dispersant B resulted more toxic than A (EC50 value of 44.30 and 160 μg mL−1, respectively) and induced severe larvae malformations at lower concentrations. Furthermore, the analysis of genes involved in different cellular response pathways indicated that those belonging to biotransformation were upregulated by dispersant A treatment, likely related to the presence of hydrocarbons. Instead, dispersant B induced cas8 gene downregulation, probably as a result of the prolonged exposure to mixture components. Our preliminary findings support the use of the C. robusta embryotoxicity test as a valuable tool for dispersant approval procedures, by providing sub-lethal responses on marine invertebrates closely related to vertebrates.
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37
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Ferreira CC, Silva TBG, Francisco ADDS, Bandeira L, Cunha RD, Coutinho‐Neto MD, Homem‐de‐Mello P, Almeida J, Orestes E, Nascimento RSV. Hyperbranched polyglycerols derivatives as cetyltrimethylammonium bromide nanocarriers on enhanced oil recovery processes. J Appl Polym Sci 2022. [DOI: 10.1002/app.51725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Conny Cerai Ferreira
- Escola de Engenharia Industrial Metalúrgica de Volta Redonda Universidade Federal Fluminense Volta Redonda Brazil
| | - Thais Barros Gomes Silva
- Instituto de Química – Universidade Federal do Rio de Janeiro Cidade Universitária Rio de Janeiro Brazil
| | | | - Lucas Bandeira
- Centro de Ciências Naturais e Humanas Universidade Federal do ABC Santo André Brazil
| | - Renato D. Cunha
- Centro de Ciências Naturais e Humanas Universidade Federal do ABC Santo André Brazil
| | | | - Paula Homem‐de‐Mello
- Centro de Ciências Naturais e Humanas Universidade Federal do ABC Santo André Brazil
| | - James Almeida
- Centro de Ciências Naturais e Humanas Universidade Federal do ABC Santo André Brazil
| | - Ednilsom Orestes
- Escola de Engenharia Industrial Metalúrgica de Volta Redonda Universidade Federal Fluminense Volta Redonda Brazil
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38
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Sguizzato M, Pula W, Bordin A, Pagnoni A, Drechsler M, Marvelli L, Cortesi R. Manganese in Diagnostics: A Preformulatory Study. Pharmaceutics 2022; 14:pharmaceutics14010108. [PMID: 35057004 PMCID: PMC8780490 DOI: 10.3390/pharmaceutics14010108] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/24/2021] [Accepted: 12/31/2021] [Indexed: 02/01/2023] Open
Abstract
This investigation aims to find lipid-based nanosystems to be used as tools to deliver manganese for diagnostic purposes in multimodal imaging techniques. In particular, the study describes the production and characterization of aqueous dispersions of anionic liposomes as delivery systems for two model manganese-based compounds, namely manganese chloride and manganese acetylacetonate. Negatively charged liposomes were obtained using four different anionic surfactants, namely sodium docusate (SD), N-lauroylsarcosine (NLS), Protelan AG8 (PAG) and sodium lauroyl lactylate (SLL). Liposomes were produced by the direct hydration method followed by extrusion and characterized in terms of size, polydispersity, surface charge and stability over time. After extrusion, liposomes are homogeneous and monodispersed with an average diameter not exceeding 200 nm and a negative surface charge as confirmed by ζ potential measurement. Moreover, as indicated by atomic absorption spectroscopy analyses, the loading of manganese-based compounds was almost quantitative. Liposomes containing NLS or SLL were the most stable over time and the presence of manganese-based compounds did not affect their size distribution. Liposomes containing PAG and SD were instable and therefore discarded. The in vitro cytotoxicity of the selected anionic liposomes was evaluated by MTT assay on human keratinocyte. The obtained results highlighted that the toxicity of the formulations is dose dependent.
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Affiliation(s)
- Maddalena Sguizzato
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, I-44121 Ferrara, Italy; (M.S.); (W.P.); (A.B.); (L.M.)
- Biotechnology Interuniversity Consortium (C.I.B.), Ferrara Section, University of Ferrara, I-44121 Ferrara, Italy
| | - Walter Pula
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, I-44121 Ferrara, Italy; (M.S.); (W.P.); (A.B.); (L.M.)
| | - Anna Bordin
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, I-44121 Ferrara, Italy; (M.S.); (W.P.); (A.B.); (L.M.)
| | - Antonella Pagnoni
- Department of Environmental Sciences and Prevention, University of Ferrara, I-44121 Ferrara, Italy;
| | - Markus Drechsler
- Bavarian Polymer Institute (BPI) Keylab “Electron and Optical Microscopy”, University of Bayreuth, D-95440 Bayreuth, Germany;
| | - Lorenza Marvelli
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, I-44121 Ferrara, Italy; (M.S.); (W.P.); (A.B.); (L.M.)
| | - Rita Cortesi
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, I-44121 Ferrara, Italy; (M.S.); (W.P.); (A.B.); (L.M.)
- Biotechnology Interuniversity Consortium (C.I.B.), Ferrara Section, University of Ferrara, I-44121 Ferrara, Italy
- Correspondence:
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39
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Bajrovic I, Le MD, Davis MM, Croyle MA. Evaluation of intermolecular interactions required for thermostability of a recombinant adenovirus within a film matrix. J Control Release 2021; 341:118-131. [PMID: 34780881 DOI: 10.1016/j.jconrel.2021.11.012] [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: 07/09/2021] [Revised: 11/02/2021] [Accepted: 11/08/2021] [Indexed: 11/16/2022]
Abstract
Thermostability of vaccines and biologic drugs are key to increasing global access to a variety of life-saving agents. In this report, we characterize interactions between a novel zwitterionic surfactant and adenovirus serotype 5 which allow the virus to remain stable at room temperature in a thin film matrix. Complexity of the adenovirus capsid and the polydispersity of the surfactant required use of a variety of techniques to achieve this goal. The CMC of the surfactant in Tris buffer (pH 6.5) was estimated to be 0.7-1.17 × 10-4 M by the pyrene 1:3 ratio method. TEM images depict micelle formation around virus capsids. An estimated Kd of the virus-surfactant interaction of 2.25 × 10-9 M was determined by isothermal titration calorimetry. Associated data suggest that this interaction may be thermodynamically favorable and entropically driven. A competitive saturation study and TEM images indicate that the surfactant also binds to hexon proteins on the virus capsid. Taken together, these data support the working hypothesis that the surfactant is capable of forming micelles in the solid and liquid state and that it forms a protective coating around the virus by binding to hexon proteins on the virus capsid during the film forming process.
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Affiliation(s)
- Irnela Bajrovic
- Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Ave., Austin, TX, USA
| | - Matthew D Le
- Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Ave., Austin, TX, USA
| | - Madison M Davis
- Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Ave., Austin, TX, USA
| | - Maria A Croyle
- Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Ave., Austin, TX, USA; LaMontagne Center for Infectious Disease, The University of Texas at Austin, Austin, TX, USA.
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40
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Almeida TC, Seibert JB, Amparo TR, de Souza GHB, da Silva GN, Dos Santos DH. Modulation of Long Non-Coding RNAs by Different Classes of Secondary Metabolites from Plants: A Mini-Review on Antitumor Effects. Mini Rev Med Chem 2021; 22:1232-1255. [PMID: 34720079 DOI: 10.2174/1389557521666211101161548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/07/2021] [Accepted: 09/10/2021] [Indexed: 11/22/2022]
Abstract
The broad pharmacological spectrum of plants is related to their secondary metabolism, which is responsible for the synthesis of different compounds that have multiple effects on cellular physiology. Among the biological effects presented by phytochemicals, their use for the prevention and treatment of cancer can be highlighted. This occurs due to several mechanisms of antitumor action demonstrated by these compounds, including regulation of the cell signaling pathways and inhibition of tumor growth. In this way, long non-coding RNAs (lncRNAs) appear to be promising targets for the treatment of cancer. Their deregulation has already been related to a variety of clinical-pathological parameters. However, the effects of secondary metabolites on lncRNAs are still restricted. For this reason, the present review aimed to gather data on phytochemicals with action on lncRNAs in order to confirm their possible antitumor potential. According to the literature, terpenoid and flavonoid are the main examples of secondary metabolites involved with lncRNAs activity. In addition, the lncRNAs H19, CASC2, HOTAIR, NKILA, CCAT1, MALAT1, AFAP1-AS1, MEG3, and CDKN2B-AS1 can be highlighted as important targets in the search for new anti-tumor agents since they act as modulating pathways related to cell proliferation, cell cycle, apoptosis, cell migration and invasion. Finally, challenges for the use of natural products as a commercial drug were also discussed. The low yield, selectivity index and undesirable pharmacokinetic parameters were emphasized as a difficulty for obtaining these compounds on a large scale and for improving the potency of its biological effect. However, the synthesis and/or development of formulations were suggested as a possible approach to solve these problems. All of these data together confirm the potential of secondary metabolites as a source of new anti-tumor agents acting on lncRNAs.
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Affiliation(s)
- Tamires Cunha Almeida
- Department of Pharmacy, School of Pharmacy, Federal University of Ouro Preto, Ouro Preto. Brazil
| | | | - Tatiane Roquete Amparo
- Department of Pharmacy, School of Pharmacy, Federal University of Ouro Preto, Ouro Preto. Brazil
| | | | - Glenda Nicioli da Silva
- Department of Clinical Analysis, School of Pharmacy, Federal University of Ouro Preto, Ouro Preto. Brazil
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41
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Unal DN, Yıldırım S, Kurbanoglu S, Uslu B. Current trends and roles of surfactants for chromatographic and electrochemical sensing. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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42
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Tesmar A, Kogut MM, Żamojć K, Grabowska O, Chmur K, Samsonov SA, Makowska J, Wyrzykowski D, Chmurzyński L. Physicochemical nature of sodium dodecyl sulfate interactions with bovine serum albumin revealed by interdisciplinary approaches. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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43
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Zhang L, Lin X, Wang T, Guo W, Lu Y. Development and comparison of cell-free protein synthesis systems derived from typical bacterial chassis. BIORESOUR BIOPROCESS 2021; 8:58. [PMID: 34249606 PMCID: PMC8258279 DOI: 10.1186/s40643-021-00413-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 06/29/2021] [Indexed: 12/13/2022] Open
Abstract
Cell-free protein synthesis (CFPS) systems have become an ideal choice for pathway prototyping, protein production, and biosensing, due to their high controllability, tolerance, stability, and ability to produce proteins in a short time. At present, the widely used CFPS systems are mainly based on Escherichia coli strain. Bacillus subtilis, Corynebacterium glutamate, and Vibrio natriegens are potential chassis cells for many biotechnological applications with their respective characteristics. Therefore, to expand the platform of the CFPS systems and options for protein production, four prokaryotes, E. coli, B. subtilis, C. glutamate, and V. natriegens were selected as host organisms to construct the CFPS systems and be compared. Moreover, the process parameters of the CFPS system were optimized, including the codon usage, plasmid synthesis competent cell selection, plasmid concentration, ribosomal binding site (RBS), and CFPS system reagent components. By optimizing and comparing the main influencing factors of different CFPS systems, the systems can be optimized directly for the most influential factors to further improve the protein yield of the systems. In addition, to demonstrate the applicability of the CFPS systems, it was proved that the four CFPS systems all had the potential to produce therapeutic proteins, and they could produce the receptor-binding domain (RBD) protein of SARS-CoV-2 with functional activity. They not only could expand the potential options for in vitro protein production, but also could increase the application range of the system by expanding the cell-free protein synthesis platform. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1186/s40643-021-00413-2.
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Affiliation(s)
- Liyuan Zhang
- Department of Ecology, Shenyang Agricultural University, Shenyang, 110866 Liaoning Province China
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China
| | - Xiaomei Lin
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China
| | - Ting Wang
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China
| | - Wei Guo
- Department of Ecology, Shenyang Agricultural University, Shenyang, 110866 Liaoning Province China
| | - Yuan Lu
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China
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Hoque MA, Alam MM, Rana S, Alothman AA, Alsawat M. Aggregation behavior and thermodynamic properties of the mixture of sodium carboxymethyl cellulose and cetyltrimethylammonium bromide in numerous temperatures and mixed solvents. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2021-3030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Abstract
Interaction of sodium carboxymethylcellulose (SCMC) with cetyltrimethylammonium bromide (CTAB; cationic in nature) in H2O and additives (alcohols and diols) media has been investigated using conductivity technique. The micellar parameters such as critical micelle concentration (cmc), fraction of counter ion binding (β), thermodynamic parameters, transfer properties, and enthalpy-entropy compensation parameters of CTAB + SCMC mixture have been assessed in water and aq. alcohols/diols media. One cmc value was achieved for CTAB + SCMC mixtures in the entire circumstances and the attendance of SCMC disfavors the CTAB micellization. The cmc values were obtained to be greater in alcohols and diols media compared to H2O medium. The cmc values also exhibit a dependency on the solvent composition and temperature variation. In all the cases, the ΔG
0
m
values were achieved to be negative which signifying the spontaneous formation of micelles while the extent of spontaneity is decreased in alcohols and diols media. Both the ΔH
0
m
and ΔS
0
m
reveal that hydrophobic, ion-dipole as well as electrostatic interactions are the proposed binding forces between CTAB and SCMC. The compensation parameters (ΔH
0*
m
and T
c
) are in decent agreement with the biological fluid.
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Affiliation(s)
- Md. Anamul Hoque
- Department of Chemistry , Jahangirnagar University , Savar , Dhaka 1342 , Bangladesh
| | - Md. Mahabub Alam
- Department of Chemistry , Jahangirnagar University , Savar , Dhaka 1342 , Bangladesh
| | - Shahed Rana
- Department of Chemistry , Jahangirnagar University , Savar , Dhaka 1342 , Bangladesh
| | - Asma A. Alothman
- Chemistry Department , College of Science, King Saud University , Riyadh 11451 , Saudi Arabia
| | - Mohammed Alsawat
- Department of Chemistry , College of Science, Taif University , P.O. Box 11099 , Taif 21944 , Saudi Arabia
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Tănase MA, Raducan A, Oancea P, Diţu LM, Stan M, Petcu C, Scomoroşcenco C, Ninciuleanu CM, Nistor CL, Cinteza LO. Mixed Pluronic-Cremophor Polymeric Micelles as Nanocarriers for Poorly Soluble Antibiotics-The Influence on the Antibacterial Activity. Pharmaceutics 2021; 13:pharmaceutics13040435. [PMID: 33804932 PMCID: PMC8063824 DOI: 10.3390/pharmaceutics13040435] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 11/21/2022] Open
Abstract
In this work, novel polymeric mixed micelles from Pluronic F127 and Cremophor EL were investigated as drug delivery systems for Norfloxacin as model antibiotic drug. The optimal molar ratio of surfactants was determined, in order to decrease critical micellar concentration (CMC) and prepare carriers with minimal surfactant concentrations. The particle size, zeta potential, and encapsulation efficiency were determined for both pure and mixed micelles with selected composition. In vitro release kinetics of Norfloxacin from micelles show that the composition of surfactant mixture generates tunable extended release. The mixed micelles exhibit good biocompatibility against normal fibroblasts MRC-5 cells, while some cytotoxicity was found in all micellar systems at high concentrations. The influence of the surfactant components in the carrier on the antibacterial properties of Norfloxacin was investigated. The drug loaded mixed micellar formulation exhibit good activity against clinical isolated strains, compared with the CLSI recommended standard strains (Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 29213, Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922). P. aeruginosa 5399 clinical strain shows low sensitivity to Norfloxacin in all tested micelle systems. The results suggest that Cremophor EL-Pluronic F127 mixed micelles can be considered as novel controlled release delivery systems for hydrophobic antimicrobial drugs.
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Affiliation(s)
- Maria Antonia Tănase
- Physical Chemistry Department, University of Bucharest, 030018 Bucharest, Romania; (M.A.T.); (A.R.); (P.O.)
| | - Adina Raducan
- Physical Chemistry Department, University of Bucharest, 030018 Bucharest, Romania; (M.A.T.); (A.R.); (P.O.)
| | - Petruţa Oancea
- Physical Chemistry Department, University of Bucharest, 030018 Bucharest, Romania; (M.A.T.); (A.R.); (P.O.)
| | - Lia Mara Diţu
- Microbiology Department, Faculty of Biology, University of Bucharest, 60101 Bucharest, Romania;
| | - Miruna Stan
- Department of Biochemistry and Molecular Biology, Faculty of Biology, ICUB-Research Institute of the University of Bucharest, University of Bucharest, 050095 Bucharest, Romania;
| | - Cristian Petcu
- National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, Polymer Department, 202 Spl. Independentei, 060021 Bucharest, Romania; (C.S.); (C.M.N.); (C.L.N.)
- Correspondence: (C.P.); (L.O.C.)
| | - Cristina Scomoroşcenco
- National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, Polymer Department, 202 Spl. Independentei, 060021 Bucharest, Romania; (C.S.); (C.M.N.); (C.L.N.)
| | - Claudia Mihaela Ninciuleanu
- National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, Polymer Department, 202 Spl. Independentei, 060021 Bucharest, Romania; (C.S.); (C.M.N.); (C.L.N.)
| | - Cristina Lavinia Nistor
- National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, Polymer Department, 202 Spl. Independentei, 060021 Bucharest, Romania; (C.S.); (C.M.N.); (C.L.N.)
| | - Ludmila Otilia Cinteza
- Physical Chemistry Department, University of Bucharest, 030018 Bucharest, Romania; (M.A.T.); (A.R.); (P.O.)
- Correspondence: (C.P.); (L.O.C.)
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Najar MH, Chat OA, Bhat PA, Mir MA, Rather GM, Dar AA. Structural changes in trypsin induced by the bile salts: An effect of amphiphile hydrophobicity. Int J Biol Macromol 2021; 180:121-128. [PMID: 33713773 DOI: 10.1016/j.ijbiomac.2021.03.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/06/2021] [Accepted: 03/09/2021] [Indexed: 01/22/2023]
Abstract
The present study reports the multi-technique results of the interaction of a series of bile salts, sodium cholate (NaC), sodium taurocholate (NaTC), sodium deoxycholate (NaDC), and sodium taurodeoxycholate (NaTDC) with trypsin under the experimental conditions of 25 °C and pH 7.0. The interactions between trypsin and the bile salts were characterized by the surface tension measurements and various spectroscopic techniques like UV-Visible absorption, steady-state fluorescence, and circular dichroism. The results of surface tension measurements reveal a strong interaction of trypsin (50 μM) with the increasing concentration of bile salts, being higher with the bile salt of greater hydrophobicity. The critical aggregation concentration of bile salts in the presence of trypsin (C1) showed that the bile salts interact strongly with the trypsin in the order of NaTDC > NaDC > NaTC > NaC. UV-visible, steady-state fluorescence, and circular dichroism spectroscopic results confirmed significant unfolding of trypsin due to its interaction with the bile salts, the extent of which followed the same sequence as observed in the surface tension results. It could be concluded that the hydrophobic bile salts that show lower C1 values and have less delocalized charge, are more effective in unfolding the trypsin. The study would help understand the hydrophobicity-driven unfolding of proteins aided by biological surfactants like bile salts and help devise efficient proteolytic enzyme-based detergent formulations and understand the role of such amphiphiles as antimicrobial agents.
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Affiliation(s)
| | - Oyais Ahmad Chat
- Department of Chemistry, Government Degree College Kupwara, J&K 193222, India.
| | - Parvaiz Ahmad Bhat
- Department of Chemistry, Government Degree College Pulwama, J&K 192301, India
| | - Mohammad Amin Mir
- Department of Chemistry, Government Degree College Pulwama, J&K 192301, India
| | - Ghulam Mohamamd Rather
- Soft Matter Research Group, Department of Chemistry, University of Kashmir, Srinagar, J&K 190006, India
| | - Aijaz Ahmad Dar
- Soft Matter Research Group, Department of Chemistry, University of Kashmir, Srinagar, J&K 190006, India.
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