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Coronado S, Herrera J, Pino MG, Martín S, Ballesteros-Rueda L, Cea P. Advancements in Engineering Planar Model Cell Membranes: Current Techniques, Applications, and Future Perspectives. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1489. [PMID: 39330645 PMCID: PMC11434481 DOI: 10.3390/nano14181489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Revised: 08/28/2024] [Accepted: 09/05/2024] [Indexed: 09/28/2024]
Abstract
Cell membranes are crucial elements in living organisms, serving as protective barriers and providing structural support for cells. They regulate numerous exchange and communication processes between cells and their environment, including interactions with other cells, tissues, ions, xenobiotics, and drugs. However, the complexity and heterogeneity of cell membranes-comprising two asymmetric layers with varying compositions across different cell types and states (e.g., healthy vs. diseased)-along with the challenges of manipulating real cell membranes represent significant obstacles for in vivo studies. To address these challenges, researchers have developed various methodologies to create model cell membranes or membrane fragments, including mono- or bilayers organized in planar systems. These models facilitate fundamental studies on membrane component interactions as well as the interactions of membrane components with external agents, such as drugs, nanoparticles (NPs), or biomarkers. The applications of model cell membranes have extended beyond basic research, encompassing areas such as biosensing and nanoparticle camouflage to evade immune detection. In this review, we highlight advancements in the engineering of planar model cell membranes, focusing on the nanoarchitectonic tools used for their fabrication. We also discuss approaches for incorporating challenging materials, such as proteins and enzymes, into these models. Finally, we present our view on future perspectives in the field of planar model cell membranes.
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Affiliation(s)
- Sara Coronado
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Centro de Investigaciones en Catálisis (CICAT), Escuela de Ingeniería Química, Universidad Industrial de Santander, Parque Tecnológico de Guatiguará, Km 2 vía El Refugio, Piedecuesta, Santander 681911, Colombia
| | - Johan Herrera
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Centro de Investigaciones en Catálisis (CICAT), Escuela de Ingeniería Química, Universidad Industrial de Santander, Parque Tecnológico de Guatiguará, Km 2 vía El Refugio, Piedecuesta, Santander 681911, Colombia
| | - María Graciela Pino
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Santiago Martín
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Luz Ballesteros-Rueda
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Centro de Investigaciones en Catálisis (CICAT), Escuela de Ingeniería Química, Universidad Industrial de Santander, Parque Tecnológico de Guatiguará, Km 2 vía El Refugio, Piedecuesta, Santander 681911, Colombia
| | - Pilar Cea
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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Schaefer S, Corrigan N, Brunke S, Lenardon MD, Boyer C. Combatting Fungal Infections: Advances in Antifungal Polymeric Nanomaterials. Biomacromolecules 2024; 25:5670-5701. [PMID: 39177507 DOI: 10.1021/acs.biomac.4c00866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Fungal pathogens cause over 6.5 million life-threatening systemic infections annually, with mortality rates ranging from 20 to 95%, even with medical intervention. The World Health Organization has recently emphasized the urgent need for new antifungal drugs. However, the range of effective antifungal agents remains limited and resistance is increasing. This Review explores the current landscape of fungal infections and antifungal drugs, focusing on synthetic polymeric nanomaterials like nanoparticles that enhance the physicochemical properties of existing drugs. Additionally, we examine intrinsically antifungal polymers that mimic naturally occurring peptides. Advances in polymer characterization and synthesis now allow precise design and screening for antifungal activity, biocompatibility, and drug interactions. These antifungal polymers represent a promising new class of drugs for combating fungal infections.
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Affiliation(s)
- Sebastian Schaefer
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
- Australian Centre for NanoMedicine, UNSW, Sydney, New South Wales 2052, Australia
- School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales 2052, Australia
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute, 07745 Jena, Germany
| | - Nathaniel Corrigan
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
- Australian Centre for NanoMedicine, UNSW, Sydney, New South Wales 2052, Australia
| | - Sascha Brunke
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute, 07745 Jena, Germany
| | - Megan D Lenardon
- School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales 2052, Australia
| | - Cyrille Boyer
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
- Australian Centre for NanoMedicine, UNSW, Sydney, New South Wales 2052, Australia
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3
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Huang Y, Su Y, Chen X, Xiao M, Xu Y. Insight into Virulence and Mechanisms of Amphotericin B Resistance in the Candida haemulonii Complex. J Fungi (Basel) 2024; 10:615. [PMID: 39330375 PMCID: PMC11433262 DOI: 10.3390/jof10090615] [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: 07/01/2024] [Revised: 08/15/2024] [Accepted: 08/26/2024] [Indexed: 09/28/2024] Open
Abstract
The Candida haemulonii complex includes emerging opportunistic human fungal pathogens with documented multidrug-resistance profiles. It comprises Candida haemulonii sensu stricto, Candida haemulonii var. vulnera, Candida duobushaemulonii, Candida pseudohaemulonii, and Candida vulturna. In recent years, rates of clinical isolation of strains from this complex have increased in multiple countries, including China, Malaysia, and Brazil. Biofilm formation, hydrolytic enzymes, surface interaction properties, phenotype switching and cell aggregation abilities, extracellular vesicles production, stress response, and immune evasion help these fungi to infect the host and exert pathological effects. Multidrug resistance profiles also enhance the threat they pose; they exhibit low susceptibility to echinocandins and azoles and an intrinsic resistance to amphotericin B (AMB), the first fungal-specific antibiotic. AMB is commonly employed in antifungal treatments, and it acts via several known mechanisms. Given the propensity of clinical Candida species to initiate bloodstream infections, clarifying how C. haemulonii resists AMB is of critical clinical importance. This review outlines our present understanding of the C. haemulonii complex's virulence factors, the mechanisms of action of AMB, and the mechanisms underlying AMB resistance.
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Affiliation(s)
- Yuyan Huang
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing 100730, China
- Graduate School, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Yanyu Su
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing 100730, China
- Graduate School, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Xinfei Chen
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing 100730, China
| | - Meng Xiao
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing 100730, China
| | - Yingchun Xu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing 100730, China
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Omelchuk O, Tevyashova A, Efimova S, Grammatikova N, Bychkova E, Zatonsky G, Dezhenkova L, Savin N, Solovieva S, Ostroumova O, Shchekotikhin A. A Study on the Effect of Quaternization of Polyene Antibiotics' Structures on Their Activity, Toxicity, and Impact on Membrane Models. Antibiotics (Basel) 2024; 13:608. [PMID: 39061290 PMCID: PMC11274224 DOI: 10.3390/antibiotics13070608] [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: 06/06/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
Polyene antibiotics have been used in antifungal therapy since the mid-twentieth century. They are highly valued for their broad spectrum of activity and the rarity of pathogen resistance to their action. However, their use in the treatment of systemic mycoses often results in serious side-effects. Recently, there has been a renewed interest in the development of new antifungal drugs based on polyenes, particularly due to the emergence of highly dangerous pathogenic strains of fungi, such as Candida auris, and the increased incidence of mucormycosis. Considerable understanding has been established regarding the structure-biological activity relationships of polyene antifungals. Yet, no previous studies have examined the effect of introducing quaternized fragments into their molecular structure. In this study, we present a series of amides of amphotericin B, nystatin, and natamycin bearing a quaternized group in the side chain, and discuss their biological properties: antifungal activity, cytotoxicity, and effects on lipid bilayers that mimic fungal and mammalian cell membranes. Our research findings suggest that the nature of the introduced quaternized residue plays a more significant role than merely the introduction of a constant positive charge. Among the tested polyenes, derivatives 4b, 5b, and 6b, which contain a fragment of N-methyl-4-(aminomethyl)pyridinium in their structure, are particularly noteworthy due to their biological activity.
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Affiliation(s)
- Olga Omelchuk
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya, Moscow 119021, Russia (G.Z.)
| | - Anna Tevyashova
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya, Moscow 119021, Russia (G.Z.)
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Svetlana Efimova
- Institute of Cytology, The Russian Academy of Sciences, 4 Tikhoretsky Ave., St. Petersburg 194064, Russia; (S.E.); (O.O.)
| | - Natalia Grammatikova
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya, Moscow 119021, Russia (G.Z.)
| | - Elena Bychkova
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya, Moscow 119021, Russia (G.Z.)
| | - George Zatonsky
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya, Moscow 119021, Russia (G.Z.)
| | - Lyubov Dezhenkova
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya, Moscow 119021, Russia (G.Z.)
| | - Nikita Savin
- Research Laboratory of Biophysics, National University of Science and Technology “MISIS”, 4 p.1 Leninsky Pr., Moscow 119049, Russia
| | - Svetlana Solovieva
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya, Moscow 119021, Russia (G.Z.)
| | - Olga Ostroumova
- Institute of Cytology, The Russian Academy of Sciences, 4 Tikhoretsky Ave., St. Petersburg 194064, Russia; (S.E.); (O.O.)
| | - Andrey Shchekotikhin
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya, Moscow 119021, Russia (G.Z.)
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Prajapat VM, Aalhate M, Sriram A, Mahajan S, Maji I, Gupta U, Kumari D, Singh K, Kalia NP, Dua K, Singh SK, Singh PK. Amphotericin B loaded nanoemulsion: Optimization, characterization and in-vitro activity against L. donovani promastigotes. Parasitol Int 2024; 100:102848. [PMID: 38159836 DOI: 10.1016/j.parint.2023.102848] [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: 08/18/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
The present work aimed to develop and evaluate AmB-loaded nano-emulsion (AmB-NE) which will augment the solubility of AmB and lead to enhanced anti-leishmanial activity. The composition of AmB-NE was optimized by systematic screening followed by DoE-extreme vertices mixture design. The optimized NE revealed mean droplet size and PDI of 44.19 ± 5.5 nm, 0.265 ± 0.0723, respectively. The NE could efficiently encapsulate AmB with drug content and efficiency 83.509 ± 0.369% and 81.659 ± 0.013%, respectively. The presence of cholesterol and stearyl amine retarded the release (P < 0.0001) of AmB significantly compared to AmB suspension. The AmB-NE and pure AmB suspension demonstrated the IC50 of 0.06309 μg/mL and 0.3309 μg/mL against L.donovani promastigotes after 48 h incubation. The formulation was robust at all exaggerated stability conditions such as freeze-thaw and centrifugation. These findings indicate that AmB-NE is an attractive approach to treat visceral leishmaniasis with improved activity.
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Affiliation(s)
- Vikram Mohanlal Prajapat
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Mayur Aalhate
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Anitha Sriram
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Srushti Mahajan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Indrani Maji
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Ujala Gupta
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Diksha Kumari
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kuljit Singh
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Nitin Pal Kalia
- Department of Biological Science, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Sachin Kumar Singh
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia; School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Pankaj Kumar Singh
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India.
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6
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Pfeffer ME, DiFrancesco ML, Marchesi A, Galluzzi F, Moschetta M, Rossini A, Francia S, Franz CM, Fok Y, Valotteau C, Paternò GM, Redondo Morata L, Vacca F, Mattiello S, Magni A, Maragliano L, Beverina L, Mattioli G, Lanzani G, Baldelli P, Colombo E, Benfenati F. Nanoactuator for Neuronal Optoporation. ACS NANO 2024; 18:12427-12452. [PMID: 38687909 DOI: 10.1021/acsnano.4c01672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Light-driven modulation of neuronal activity at high spatial-temporal resolution is becoming of high interest in neuroscience. In addition to optogenetics, nongenetic membrane-targeted nanomachines that alter the electrical state of the neuronal membranes are in demand. Here, we engineered and characterized a photoswitchable conjugated compound (BV-1) that spontaneously partitions into the neuronal membrane and undergoes a charge transfer upon light stimulation. The activity of primary neurons is not affected in the dark, whereas millisecond light pulses of cyan light induce a progressive decrease in membrane resistance and an increase in inward current matched to a progressive depolarization and action potential firing. We found that illumination of BV-1 induces oxidation of membrane phospholipids, which is necessary for the electrophysiological effects and is associated with decreased membrane tension and increased membrane fluidity. Time-resolved atomic force microscopy and molecular dynamics simulations performed on planar lipid bilayers revealed that the underlying mechanism is a light-driven formation of pore-like structures across the plasma membrane. Such a phenomenon decreases membrane resistance and increases permeability to monovalent cations, namely, Na+, mimicking the effects of antifungal polyenes. The same effect on membrane resistance was also observed in nonexcitable cells. When sustained light stimulations are applied, neuronal swelling and death occur. The light-controlled pore-forming properties of BV-1 allow performing "on-demand" light-induced membrane poration to rapidly shift from cell-attached to perforated whole-cell patch-clamp configuration. Administration of BV-1 to ex vivo retinal explants or in vivo primary visual cortex elicited neuronal firing in response to short trains of light stimuli, followed by activity silencing upon prolonged light stimulations. BV-1 represents a versatile molecular nanomachine whose properties can be exploited to induce either photostimulation or space-specific cell death, depending on the pattern and duration of light stimulation.
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Affiliation(s)
- Marlene E Pfeffer
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- Department of Experimental Medicine, University of Genova, Viale Benedetto XV 3, 16132 Genova, Italy
| | | | - Arin Marchesi
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, Via Tronto 10/a, 60126 Torrette di Ancona, Italy
| | - Filippo Galluzzi
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- The Open University Affiliated Research Centre at Istituto Italiano di Tecnologia (ARC@IIT), Via Morego 30, 16163 Genova, Italy
| | - Matteo Moschetta
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
| | - Andrea Rossini
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
| | - Simona Francia
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
| | - Clemens M Franz
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Yulia Fok
- Aix-Marseille University, INSERM, DyNaMo, Turing Centre for Living Systems, 163 Avenue de Luminy, 13288 Marseille Cedex 09, France
| | - Claire Valotteau
- Aix-Marseille University, INSERM, DyNaMo, Turing Centre for Living Systems, 163 Avenue de Luminy, 13288 Marseille Cedex 09, France
| | - Giuseppe Maria Paternò
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20133 Milan, Italy
| | - Lorena Redondo Morata
- Aix-Marseille University, INSERM, DyNaMo, Turing Centre for Living Systems, 163 Avenue de Luminy, 13288 Marseille Cedex 09, France
| | - Francesca Vacca
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
| | - Sara Mattiello
- Department of Material Science, Bicocca University, Via Roberto Cozzi 55, 20126 Milano, Italy
| | - Arianna Magni
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20133 Milan, Italy
| | - Luca Maragliano
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Luca Beverina
- Department of Material Science, Bicocca University, Via Roberto Cozzi 55, 20126 Milano, Italy
| | - Giuseppe Mattioli
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (CNR-ISM), Via Salaria km 29.300, 00015 Monterotondo (RM), Italy
| | - Guglielmo Lanzani
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20133 Milan, Italy
| | - Pietro Baldelli
- Department of Experimental Medicine, University of Genova, Viale Benedetto XV 3, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
| | - Elisabetta Colombo
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
| | - Fabio Benfenati
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
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7
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Wang J, Qiang J, Li J, Wang D. Effect of high sodium ion level on the interaction of AmB with a cholesterol-rich phospholipid monolayer. Front Mol Biosci 2024; 11:1405383. [PMID: 38784666 PMCID: PMC11111911 DOI: 10.3389/fmolb.2024.1405383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 04/10/2024] [Indexed: 05/25/2024] Open
Abstract
Invasive fungal infections are a primary reason for high mortality in immunocompromised people, especially in critically ill patients, such as intensive care unit (ICU) patients, advanced cancer patients, or severe burn patients. Hypernatremia also can increase mortality in severely ill patients. Amphotericin B (AmB) is the gold standard for treating infections, but in severely ill patients, AmB can cause hematotoxicity when administered intravenously due to its interaction with cholesterol on red blood cell membranes. This results in limited doses of AmB and affects the treatment of infections. The proportion of cholesterol molecules in membrane lipids in red blood cells is as high as 50 mol%, and the sodium ions can influence the interaction between AmB and lipids on the membrane. Therefore, in the complex clinical situation of a severely ill patient with a fungal infection and hypernatremia, the interaction between amphotericin B and the red blood cell membranes is worth studying in depth. In this work, the interaction between AmB and the dipalmitoyl phosphatidylcholine (DPPC)/cholesterol mixed monolayer in the presence of high sodium ion levels was studied when the proportion of cholesterol was 50%. The results show that the effect of AmB on reducing the monolayer's area at a high level of sodium ions is slightly stronger at 30 mN/m. The effect of AmB on reducing the elastic modulus of the DPPC/Chol monolayer is significantly weakened by a high sodium ion level, compared with the level of sodium ions at normal physiological concentration. The higher the sodium ion concentration, the weaker the intermolecular force of the DPPC/Chol/AmB mixed monolayers. The scanning electron microscope (SEM) and atomic force microscopy (AFM) observations suggest that at a high sodium ion level, the presence of AmB significantly reduces the surface roughness of the DPPC/Chol monolayer. AmB may bind to cholesterol molecules, and it isolates cholesterol from the monolayer, resulting in a reduced height of the cholesterol-rich monolayer and an increasingly dispersed monolayer region. The results are beneficial to understanding the mechanism of impact of a high sodium ion level on the relationship between AmB and red blood cell membranes rich in cholesterol and are valuable for understanding the hemolytic toxicity of AmB to red blood cells at a high sodium ion level.
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Affiliation(s)
- Juan Wang
- Xi’an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Electronic Information, Xijing University, Xi’an, China
- Shaanxi Engineering Research Center of Controllable Neutron Source, School of Electronic Information, Xijing University, Xi’an, China
| | - Jiahao Qiang
- Shaanxi Engineering Research Center of Controllable Neutron Source, School of Electronic Information, Xijing University, Xi’an, China
| | - Jinzi Li
- Shaanxi Engineering Research Center of Controllable Neutron Source, School of Electronic Information, Xijing University, Xi’an, China
| | - Dengwu Wang
- Xi’an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Electronic Information, Xijing University, Xi’an, China
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8
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Qian S, Nagy G, Zolnierczuk P, Mamontov E, Standaert R. Nonstereotypical Distribution and Effect of Ergosterol in Lipid Membranes. J Phys Chem Lett 2024; 15:4745-4752. [PMID: 38661394 DOI: 10.1021/acs.jpclett.4c00385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Ergosterol, found in fungi and some protist membranes, is understudied compared with cholesterol from animal membranes. Generally, ergosterol is assumed to modulate membranes in the same manner as cholesterol, based on their similar chemical structures. Here we reveal some fundamental structural and dynamical differences between them. Neutron diffraction shows that ergosterol is embedded in the lipid bilayer much shallower than cholesterol. Ergosterol does not change the membrane thickness as much as cholesterol does, indicating little condensation effect. Neutron spin echo shows that ergosterol can rigidify and soften membranes at different concentrations. The lateral lipid diffusion measured by quasielastic neutron scattering indicates that ergosterol promotes a jump diffusion of the lipid, whereas cholesterol keeps the same continuous lateral diffusion as the pure lipid membrane. Our results point to quite distinct interactions of ergosterol with membranes compared with cholesterol. These insights provide a basic understanding of membranes containing ergosterol with implications for phenomena such as lipid rafts and drug interactions.
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Affiliation(s)
- Shuo Qian
- Oak Ridge National Laboratory, PO BOX 2008, Oak Ridge, Tennessee 37831, United States
| | - Gergely Nagy
- Oak Ridge National Laboratory, PO BOX 2008, Oak Ridge, Tennessee 37831, United States
| | - Piotr Zolnierczuk
- Oak Ridge National Laboratory, PO BOX 2008, Oak Ridge, Tennessee 37831, United States
| | - Eugene Mamontov
- Oak Ridge National Laboratory, PO BOX 2008, Oak Ridge, Tennessee 37831, United States
| | - Robert Standaert
- Oak Ridge National Laboratory, PO BOX 2008, Oak Ridge, Tennessee 37831, United States
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9
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Ahmady L, Gothwal M, Mukkoli MM, Bari VK. Antifungal drug resistance in Candida: a special emphasis on amphotericin B. APMIS 2024; 132:291-316. [PMID: 38465406 DOI: 10.1111/apm.13389] [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: 06/16/2023] [Accepted: 02/12/2024] [Indexed: 03/12/2024]
Abstract
Invasive fungal infections in humans caused by several Candida species, increased considerably in immunocompromised or critically ill patients, resulting in substantial morbidity and mortality. Candida albicans is the most prevalent species, although the frequency of these organisms varies greatly according to geographic region. Infections with C. albicans and non-albicans Candida species have become more common, especially in the past 20 years, as a result of aging, immunosuppressive medication use, endocrine disorders, malnourishment, extended use of medical equipment, and an increase in immunogenic diseases. Despite C. albicans being the species most frequently associated with human infections, C. glabrata, C. parapsilosis, C. tropicalis, and C. krusei also have been identified. Several antifungal drugs with different modes of action are approved for use in clinical settings to treat fungal infections. However, due to the common eukaryotic structure of humans and fungi, only a limited number of antifungal drugs are available for therapeutic use. Furthermore, drug resistance in Candida species has emerged as a result of the growing use of currently available antifungal drugs against fungal infections. Amphotericin B (AmB), a polyene class of antifungal drugs, is mainly used for the treatment of serious systemic fungal infections. AmB interacts with fungal plasma membrane ergosterol, triggering cellular ion leakage via pore formation, or extracting the ergosterol from the plasma membrane inducing cellular death. AmB resistance is primarily caused by changes in the content or structure of ergosterol. This review summarizes the antifungal drug resistance exhibited by Candida species, with a special focus on AmB.
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Affiliation(s)
- Lailema Ahmady
- Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, India
| | - Manisha Gothwal
- Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, India
| | | | - Vinay Kumar Bari
- Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, India
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10
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Wnętrzak A, Szymczuk D, Chachaj-Brekiesz A, Dynarowicz-Latka P, Lupa D, Lipiec EW, Laszuk P, Petelska AD, Markiewicz KH, Wilczewska AZ. Lithocholic acid-based oligomers as drug delivery candidates targeting model of lipid raft. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184294. [PMID: 38316379 DOI: 10.1016/j.bbamem.2024.184294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/21/2023] [Accepted: 01/31/2024] [Indexed: 02/07/2024]
Abstract
This study presents a new approach to designing a lithocholic acid functionalized oligomer (OLithocholicAA-X) that can be used as a drug carrier with additional, beneficial activity. Namely, this novel oligomer can incorporate an anti-cancer drug due to the application of an effective backbone as its component (lithocholic acid) alone is known to have anticancer activity. The oligomer was synthesized and characterized in detail by nuclear magnetic resonance, attenuated total reflectance Fourier-transform infrared spectroscopy, ultraviolet-visible spectroscopy, thermal analysis, and mass spectrometry analysis. We selected lipid rafts as potential drug carrier-membrane binding sites. In this respect, we investigated the effects of OLithocholicAA-X on model lipid raft of normal and altered composition, containing an increased amount of cholesterol (Chol) or sphingomyelin (SM), using Langmuir monolayers and liposomes. The surface topography of the studied monolayers was additionally investigated by atomic force microscopy (AFM). The obtained results showed that the investigated oligomer has affinity for a system that mimics a normal lipid raft (SM:Chol 2:1). On the other hand, for systems with an excess of SM or Chol, thermodynamically unfavorable fluidization of the films occurs. Moreover, AFM topographies showed that the amount of SM determines the bioavailability of the oligomer, causing fragmentation of its lattice.
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Affiliation(s)
- Anita Wnętrzak
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Dawid Szymczuk
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland; Doctoral School of Exact and Natural Sciences, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland
| | - Anna Chachaj-Brekiesz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | | | - Dawid Lupa
- Faculty of Physics, Astronomy, and Applied Computer Science, M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Ewelina W Lipiec
- Faculty of Physics, Astronomy, and Applied Computer Science, M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Paulina Laszuk
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland
| | - Aneta D Petelska
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland
| | - Karolina H Markiewicz
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland
| | - Agnieszka Z Wilczewska
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland
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11
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Wang LJ, Wen F, Li LX, Xia ZF. Antifungal activity and mechanism of oxanthromicin against Verticillium dahliae. Arch Microbiol 2024; 206:83. [PMID: 38296859 DOI: 10.1007/s00203-023-03815-2] [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: 10/06/2023] [Revised: 12/12/2023] [Accepted: 12/23/2023] [Indexed: 02/02/2024]
Abstract
Oxanthromicin is an anthranone-type natural product isolated from Streptomyces sp. TRM 15522, which exhibits antifungal activity. However, the underlying mechanisms remain unclear. This study, therefore, aimed at investigating the mode of action of oxanthromicin against the phytopathogen Verticillium dahliae. We found that oxanthromicin substantially suppressed spore germination and mycelial growth in V. dahliae. Further, electron microscopy and staining with propidium iodide and Rhodamine 123 indicated that oxanthromicin causes cell membrane damage and induces changes in mitochondrial membrane potential. These findings suggest that oxanthromicin exhibits its antifungal activity by damaging fungal cell membranes. This discovery could potentially facilitate the development of oxanthromicin as a biological pesticide.
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Affiliation(s)
- Li-Jun Wang
- College of Life Science and Technology, Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production & Construction Corps, Tarim University, Alar, 843300, China
- Instrumental Analysis Center of Tarim University, Alar, 843300, China
| | - Feng Wen
- College of Life Science and Technology, Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production & Construction Corps, Tarim University, Alar, 843300, China
| | - Li-Xia Li
- College of Life Science and Technology, Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production & Construction Corps, Tarim University, Alar, 843300, China
| | - Zhan-Feng Xia
- College of Life Science and Technology, Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production & Construction Corps, Tarim University, Alar, 843300, China.
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12
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Dynarowicz-Latka P, Wnętrzak A, Chachaj-Brekiesz A. Advantages of the classical thermodynamic analysis of single-and multi-component Langmuir monolayers from molecules of biomedical importance-theory and applications. J R Soc Interface 2024; 21:20230559. [PMID: 38196377 PMCID: PMC10777166 DOI: 10.1098/rsif.2023.0559] [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: 09/24/2023] [Accepted: 12/08/2023] [Indexed: 01/11/2024] Open
Abstract
The Langmuir monolayer technique has been successfully used for decades to model biological membranes and processes occurring at their interfaces. Classically, this method involves surface pressure measurements to study interactions within membrane components as well as between external bioactive molecules (e.g. drugs) and the membrane. In recent years, surface-sensitive techniques were developed to investigate monolayers in situ; however, the obtained results are in many cases insufficient for a full characterization of biomolecule-membrane interactions. As result, description of systems using parameters such as mixing or excess thermodynamic functions is still relevant, valuable and irreplaceable in biophysical research. This review article summarizes the theory of thermodynamics of single- and multi-component Langmuir monolayers. In addition, recent applications of this approach to characterize surface behaviour and interactions (e.g. orientation of bipolar molecules, drug-membrane affinity, lateral membrane heterogeneity) are presented.
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Affiliation(s)
| | - Anita Wnętrzak
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Anna Chachaj-Brekiesz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
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13
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Zhong X, Yang J, Liu H, Yang Z, Luo P. Potential lipid-based strategies of amphotericin B designed for oral administration in clinical application. Drug Deliv 2023; 30:2161671. [PMID: 36601799 PMCID: PMC9828648 DOI: 10.1080/10717544.2022.2161671] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Amphotericin B (AmB) is regarded as a first-line therapy against life-threatening invasive fungal infections. Due to its poor oral bioavailability, AmB is restricted to intravenous administration in clinical practice. As science continues to move forward, two lipid-based formulations are successfully developed for oral AmB administration, currently undergoing phase I clinical trials. Encouragingly, lipid-AmB conjugates with emulsions also exhibit a better bioavailability, which may be another strategy to design oral AmB formulation in clinical practice. Thus, this review mainly focused on the two lipid-based formulations in clinical trials, and discussed the potential perspectives of AmB-lipid conjugation-loaded nanocochleates and emulsions.
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Affiliation(s)
- Xiaoming Zhong
- Department of Oncology Radiotherapy, Jiangxi Cancer Hospital, Nanchang, China
| | - Jianqiong Yang
- Department of Clinical Medicine Research Center, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China;
| | - Hongyan Liu
- Department of Pharmacy, Shanghai Songjiang District Central Hospital, Shanghai, China
| | - Zhiwen Yang
- Department of Pharmacy, Shanghai Songjiang District Central Hospital, Shanghai, China
| | - Ping Luo
- Department of Breast surgery, Nanchang Third Hospital, Nanchang, China,CONTACT Ping Luo Department of Breast surgery, Nanchang Third Hospital, Nanchang, China
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14
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Mehta D, Saini V, Bajaj A. Recent developments in membrane targeting antifungal agents to mitigate antifungal resistance. RSC Med Chem 2023; 14:1603-1628. [PMID: 37731690 PMCID: PMC10507810 DOI: 10.1039/d3md00151b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/22/2023] [Indexed: 09/22/2023] Open
Abstract
Fungal infections cause severe and life-threatening complications especially in immunocompromised individuals. Antifungals targeting cellular machinery and cell membranes including azoles are used in clinical practice to manage topical to systemic fungal infections. However, continuous exposure to clinically used antifungal agents in managing the fungal infections results in the development of multi-drug resistance via adapting different kinds of intrinsic and extrinsic mechanisms. The unique chemical composition of fungal membranes presents attractive targets for antifungal drug discovery as it is difficult for fungal cells to modify the membrane targets for emergence of drug resistance. Here, we discussed available antifungal drugs with their detailed mechanism of action and described different antifungal resistance mechanisms. We further emphasized structure-activity relationship studies of membrane-targeting antifungal agents, and classified membrane-targeting antifungal agents on the basis of their core scaffold with detailed pharmacological properties. This review aims to pique the interest of potential researchers who could explore this interesting and intricate fungal realm.
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Affiliation(s)
- Devashish Mehta
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology Faridabad-121001 Haryana India
| | - Varsha Saini
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology Faridabad-121001 Haryana India
| | - Avinash Bajaj
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology Faridabad-121001 Haryana India
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15
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Sousa F, Nascimento C, Ferreira D, Reis S, Costa P. Reviving the interest in the versatile drug nystatin: A multitude of strategies to increase its potential as an effective and safe antifungal agent. Adv Drug Deliv Rev 2023; 199:114969. [PMID: 37348678 DOI: 10.1016/j.addr.2023.114969] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
Nystatin is an antifungal molecule with a remarkable yet squandered versatility. In this review, its mechanism of action is explored, along with its extensive action spectrum and toxicity. A multitude of methodologies to tackle the drug's physical and chemical hurdles are outlined along with some proven-effective strategies to increase its activity and/or decrease its toxicity. A separate detailed section focused on micro and nanotechnology solutions addresses new drug delivery systems made of polymeric, metallic or lipid materials. Although the topical route depicts greater representativeness amongst these formulations, the intravenous, dental, oral, vaginal and inhalation routes are also mentioned. The unsuccessful previous attempts at developing parenteral formulations of nystatin or even the withdrawal of a nystatin-loaded multilamellar liposome should not divert research away from this drug. In fact, the interest in nystatin ought to be reawakened with the ongoing clinical trials on the promising nystatin-like genetically engineered derivate BSG005.
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Affiliation(s)
- Filipa Sousa
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal; Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Cecília Nascimento
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal.
| | - Domingos Ferreira
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal; Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Salette Reis
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal.
| | - Paulo Costa
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal; Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
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16
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Osset-Trénor P, Pascual-Ahuir A, Proft M. Fungal Drug Response and Antimicrobial Resistance. J Fungi (Basel) 2023; 9:jof9050565. [PMID: 37233275 DOI: 10.3390/jof9050565] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/27/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023] Open
Abstract
Antifungal resistance is a growing concern as it poses a significant threat to public health. Fungal infections are a significant cause of morbidity and mortality, especially in immunocompromised individuals. The limited number of antifungal agents and the emergence of resistance have led to a critical need to understand the mechanisms of antifungal drug resistance. This review provides an overview of the importance of antifungal resistance, the classes of antifungal agents, and their mode of action. It highlights the molecular mechanisms of antifungal drug resistance, including alterations in drug modification, activation, and availability. In addition, the review discusses the response to drugs via the regulation of multidrug efflux systems and antifungal drug-target interactions. We emphasize the importance of understanding the molecular mechanisms of antifungal drug resistance to develop effective strategies to combat the emergence of resistance and highlight the need for continued research to identify new targets for antifungal drug development and explore alternative therapeutic options to overcome resistance. Overall, an understanding of antifungal drug resistance and its mechanisms will be indispensable for the field of antifungal drug development and clinical management of fungal infections.
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Affiliation(s)
- Paloma Osset-Trénor
- Department of Biotechnology, Instituto de Biología Molecular y Celular de Plantas IBMCP, Universidad Politécnica de Valencia, 46022 Valencia, Spain
| | - Amparo Pascual-Ahuir
- Department of Biotechnology, Instituto de Biología Molecular y Celular de Plantas IBMCP, Universidad Politécnica de Valencia, 46022 Valencia, Spain
| | - Markus Proft
- Department of Molecular and Cellular Pathology and Therapy, Instituto de Biomedicina de Valencia IBV-CSIC, Consejo Superior de Investigaciones Científicas CSIC, 46010 Valencia, Spain
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17
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Leonhard V, Comini LR, Alasino RV, Cometto MJ, Bierbrauer KL, Beltramo DM. Self-Assembled Teicoplanin Micelles as Amphotericin B Nanocarrier. J Pharm Sci 2023; 112:1081-1088. [PMID: 36528112 DOI: 10.1016/j.xphs.2022.12.007] [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: 10/24/2022] [Revised: 12/12/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Teicoplanin (Teico) is an antimicrobial agent that spontaneously forms micelles in aqueous media. In this work, we characterized the physicochemical properties of nanoparticles formed by the interaction of Teico with Amphotericin B (AmB). Teico-AmB micelles structure spontaneously in aqueous media, with a particle size of 70-100 nm and a zeta potential of -28 mV. Although the characterization of these nanostructures yielded satisfactory results, in vitro cytotoxicity tests showed high toxicity. Based on this, adding cholesterol to the formulation was evaluated to try to reduce the toxicity of the drug. These Teico-AmB-Chol nanostructures have a larger size, close to 160 nm, but a lower polydispersity index. They also showed strongly negative surface charge and were more stable than Teico-AmB, remaining stable for at least 20 days at 4 °C and 25 °C and against centrifugation, dilution, freezing, lyophilization and re-suspension processes with a recovery percentage of AmB greater than 95%, maintaining their initial size and zeta potential. These Teico-AmB-Chol micelles show lower cytotoxic effect and higher biological activity than Teico-AmB, even than Amfostat® and Ambisome® formulations. These two new nanoparticles, with and without Chol, are discussed as potential formulations able to improve the antifungal therapeutic efficiency of AmB.
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Affiliation(s)
- V Leonhard
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - L R Comini
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - R V Alasino
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - M Jávega Cometto
- Facultad de Ciencias Químicas - Universidad Nacional de Córdoba, Argentina
| | - K L Bierbrauer
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - D M Beltramo
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Laboratorio de Biotecnología - Facultad de Ciencias Químicas - Universidad Católica de Córdoba, Argentina.
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18
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Fridman M, Sakurai K. Deciphering the Biological Activities of Antifungal Agents with Chemical Probes. Angew Chem Int Ed Engl 2023; 62:e202211927. [PMID: 36628503 DOI: 10.1002/anie.202211927] [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: 08/12/2022] [Revised: 11/09/2022] [Accepted: 01/10/2023] [Indexed: 01/12/2023]
Abstract
The growing number of fungal infections caused by pathogens resistant to one or more classes of antifungal drugs emphasizes the threat that these microorganisms pose to animal and human health and global food security. Open questions remain regarding the mechanisms of action of the limited repertoire of antifungal agents, making it challenging to rationally develop more efficacious therapeutics. In recent years, the use of chemical biology approaches has resolved some of these questions and has provided new promising concepts to guide the design of antifungal agents. By focusing on examples from studies carried out in recent years, this minireview describes the key roles that probes based on antifungal agents and their derivatives have played in uncovering details about their activities, in detecting resistance, and in characterizing the interactions between these agents and their targets.
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Affiliation(s)
- Micha Fridman
- School of Chemistry, Raymond & Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Kaori Sakurai
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 4-24-16, Naka-cho, Koganei-shi, Tokyo, 184-8588, Japan
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19
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Ji X, Shi C, Guo D, Yang X, Suo L, Luo J. Engineering Telodendrimer Nanocarriers for Monomeric Amphotericin B Delivery. Mol Pharm 2023; 20:2138-2149. [PMID: 36877183 DOI: 10.1021/acs.molpharmaceut.2c01087] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Systemic fungal infections are an increasingly prevalent health problem. Amphotericin B (AmB), a hydrophobic polyene antibiotic, remains the drug of choice for life-threatening invasive fungal infections. However, it has dose-limiting side effects, including nephrotoxicity. The efficacy and toxicity of AmB are directly related to its aggregation state. Here, we report the preparation of a series of telodendrimer (TD) nanocarriers with the freely engineered core structures for AmB encapsulation to fine-tune AmB aggregation status. The reduced aggregation status correlates well with the optimized antifungal activity, attenuated hemolytic properties, and reduced cytotoxicity to mammalian cells. The optimized TD nanocarrier for monomeric AmB encapsulation significantly increases the therapeutic index, reduces the in vivo toxicity, and enhances antifungal effects in mouse models with Candida albicans infection in comparison to two common clinical formulations, i.e., Fungizone and AmBisome.
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Affiliation(s)
- Xiaotian Ji
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, New York 13210, United States
| | - Changying Shi
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, New York 13210, United States
| | - Dandan Guo
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, New York 13210, United States
| | - Xiguang Yang
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, New York 13210, United States
| | - Liye Suo
- Department of Pathology, State University of New York Upstate Medical University, Syracuse, New York 13210, United States
| | - Juntao Luo
- Department of Pharmacology, Department of Surgery, Department of Microbiology and Immunology, Upstate Cancer Center, Upstate Sepsis Interdisciplinary Research Center, State University of New York Upstate Medical University, Syracuse, New York 13210, United States
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20
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Won T, Mohid SA, Choi J, Kim M, Krishnamoorthy J, Biswas I, Bhunia A, Lee D. The role of hydrophobic patches of de novo designed MSI-78 and VG16KRKP antimicrobial peptides on fragmenting model bilayer membranes. Biophys Chem 2023; 296:106981. [PMID: 36871366 DOI: 10.1016/j.bpc.2023.106981] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/06/2023] [Accepted: 02/21/2023] [Indexed: 02/26/2023]
Abstract
Antimicrobial peptides (AMPs) with cell membrane lysing capability are considered potential candidates for the development of the next generation of antibiotics. Designing novel AMPs requires an in-depth understanding of the mechanism of action of the peptides. In this work, we used various biophysical techniques including 31P solid-state NMR to examine the interaction of model membranes with amphipathic de novo-designed peptides. Two such peptides, MSI-78 and VG16KRKP, were designed with different hydrophobicity and positive charges. The model lipid membranes were constituted by mixing lipids of varying degrees of 'area per lipid' (APL), which directly affected the packing properties of the membrane. The observed emergence of the isotropic peak in 31P NMR spectra as a function of time is a consequence of the fragmentation of the membrane mediated by the peptide interaction. The factors such as the charges, overall hydrophilicity of the AMPs, as well as lipid membrane packing, contributed to the kinetics of membrane fragmentation. Furthermore, we anticipate the designed AMPs follow the carpet and toroidal pore mechanisms when lysing the cell membrane. This study highlights the significance of the effect of the overall charges and the hydrophobicity of the novel AMPs designed for antimicrobial activity.
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Affiliation(s)
- TaeJun Won
- Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Sk Abdul Mohid
- Department of Biophysics, Bose Institute, Unified Academic Campus, Bidhan Nagar EN 80, Kolkata 700 091, India
| | - JiHye Choi
- Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - MinSoo Kim
- Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | | | - Indranil Biswas
- Department of Microbiology, Molecular Genetics, and Immunology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Anirban Bhunia
- Department of Biophysics, Bose Institute, Unified Academic Campus, Bidhan Nagar EN 80, Kolkata 700 091, India.
| | - DongKuk Lee
- Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea.
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21
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Vanzolini T, Di Mambro T, Magnani M, Menotta M. AFM evaluation of a humanized recombinant antibody affecting C. auris cell wall and stability. RSC Adv 2023; 13:6130-6142. [PMID: 36814881 PMCID: PMC9940460 DOI: 10.1039/d2ra07217c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/02/2023] [Indexed: 02/22/2023] Open
Abstract
Fungal infections are increasingly impacting on the health of the population and particularly on subjects with a compromised immune system. The resistance phenomenon and the rise of new species carrying sometimes intrinsic and multi-drug resistance to the most commonly used antifungal drugs are greatly concerning healthcare organizations. As a result of this situation, there is growing interest in the development of therapeutic agents against pathogenic fungi. In particular, the Candida genus is responsible for severe life-threatening infections and among its species, C. auris is considered an urgent threat by the Center for Disease Control and Prevention, and is one of the three leading causes of morbidity and mortality worldwide. H5K1 is a humanized monoclonal antibody (hmAb) that selectively binds to β-1,3-glucans, vital components of the fungal cell wall. It has been previously demonstrated that it is active against Candida species, especially against C. auris, reaching its greatest potential when combined with commercially available antifungal drugs. Here we used atomic force microscopy (AFM) to assess the effects of H5K1, alone and in combination with fluconazole, caspofungin and amphotericin B, on C. auris cells. Through an extensive exploration we found that H5K1 has a significant role in the perturbation and remodeling of the fungal cell wall that is reflected in the loss of whole cell integrity. Moreover, it contributes substantially to the alterations in terms of chemical composition, stiffness and roughness induced specifically by caspofungin and amphotericin B. In addition to this, we demonstrated that AFM is a valuable technique to evaluate drug-microorganism interaction.
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Affiliation(s)
- Tania Vanzolini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Via Saffi 2 61029 Urbino Italy
| | | | - Mauro Magnani
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Via Saffi 2 61029 Urbino Italy
| | - Michele Menotta
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Via Saffi 2 61029 Urbino Italy
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22
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Hussain MK, Ahmed S, Khan A, Siddiqui AJ, Khatoon S, Jahan S. Mucormycosis: A hidden mystery of fungal infection, possible diagnosis, treatment and development of new therapeutic agents. Eur J Med Chem 2023; 246:115010. [PMID: 36566630 PMCID: PMC9734071 DOI: 10.1016/j.ejmech.2022.115010] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 11/15/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
Mucormycosis is a fungal infection which got worsens with time if not diagnosed and treated. The current COVID-19 pandemic has association with fungal infection specifically with mucormycosis. Already immunocompromised patients are easy target for COVID-19 and mucormycosis as well. COVID-19 infection imparts in weak immune system so chances of infection is comparatively high in COVID-19 patients. Furthermore, diabetes, corticosteroid medicines, and a weakened immune system are the most prevalent risk factors for this infection as we discussed in case studies here. The steroid therapy for COVID-19 patients sometimes have negative impact on the patient health and this state encounters many infections including mucormycosis. There are treatments available but less promising and less effective. So, researchers are focusing on the promising agents against mucormycosis. It is reported that early treatment with liposomal amphotericin B (AmB), manogepix, echinocandins isavuconazole, posacanazole and other promising therapeutic agents have overcome the burden of mucormycosis. Lipid formulations of AmB have become the standard treatment for mucormycosis due to their greater safety and efficacy. In this review article, we have discussed case studies with the infection of mucormycosis in COVID-19 patients. Furthermore, we focused on anti-mucormycosis agents with mechanism of action of various therapeutics, including coverage of new antifungal agents being investigated as part of the urgent global response to control and combat this lethal infection, especially those with established risk factors.
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Affiliation(s)
- Mohd Kamil Hussain
- Department of Chemistry, Govt. Raza PG College, Rampur, 244901, India,M.J.P. Rohil Khand University, Bareilly, India
| | - Shaista Ahmed
- Centre for Translational and Clinical Research, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Andleeb Khan
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
| | - Arif Jamal Siddiqui
- Department of Biology, College of Science, University of Hail, Hail, Saudi Arabia
| | | | - Sadaf Jahan
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al-Majmaah, 11952, Saudi Arabia,Corresponding author
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23
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Borzyszkowska-Bukowska J, Czub J, Szczeblewski P, Laskowski T. Antibiotic-sterol interactions provide insight into the selectivity of natural aromatic analogues of amphotericin B and their photoisomers. Sci Rep 2023; 13:762. [PMID: 36641464 PMCID: PMC9840637 DOI: 10.1038/s41598-023-28036-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/11/2023] [Indexed: 01/16/2023] Open
Abstract
Aromatic heptaene macrolides (AHMs) belong to the group of polyene macrolide antifungal antibiotics. Members of this group were the first to be used in the treatment of systemic fungal infections. Amphotericin B (AmB), a non-aromatic representative of heptaene macrolides, is of significant clinical importance in the treatment of internal mycoses. It includes the all-trans heptaene chromophore, whereas the native AHMs contain two cis-type (Z) double bonds within the chromophore system. Lately we have proven that it is possible to obtain AHMs' stable derivatives in the form of all-trans (AmB-type) isomers by photochemical isomerization. Our further studies have shown that such alteration leads to the improvement of their selective toxicity in vitro. Computational experiments carried out so far were only an initial contribution in the investigation of the molecular basis of the mechanism of action of AHMs and did not provide explanation to observed differences in biological activity between the native (cis-trans) and isomeric (all-trans) AHMs. Herein, we presented the results of two-dimensional metadynamics studies upon AmB and its aromatic analogues (AHMs), regarding preferable binary antibiotic/sterol complexes orientation, as well as more detailed research on the behaviour of AHMs' alkyl-aromatic side chain in cholesterol- or ergosterol-enriched lipid bilayers.
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Affiliation(s)
- Julia Borzyszkowska-Bukowska
- Department of Pharmaceutical Technology and Biochemistry and BioTechMed Centre, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza Str. 11/12, 80-233, Gdańsk, Poland.
| | - Jacek Czub
- Department of Physical Chemistry and BioTechMed Centre, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza Str. 11/12, 80-233, Gdańsk, Poland
| | - Paweł Szczeblewski
- Department of Pharmaceutical Technology and Biochemistry and BioTechMed Centre, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza Str. 11/12, 80-233, Gdańsk, Poland
| | - Tomasz Laskowski
- Department of Pharmaceutical Technology and Biochemistry and BioTechMed Centre, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza Str. 11/12, 80-233, Gdańsk, Poland.
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24
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Semisynthetic Amides of Amphotericin B and Nystatin A 1: A Comparative Study of In Vitro Activity/Toxicity Ratio in Relation to Selectivity to Ergosterol Membranes. Antibiotics (Basel) 2023; 12:antibiotics12010151. [PMID: 36671352 PMCID: PMC9854944 DOI: 10.3390/antibiotics12010151] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/24/2022] [Accepted: 01/05/2023] [Indexed: 01/15/2023] Open
Abstract
Polyene antifungal amphotericin B (AmB) has been used for over 60 years, and remains a valuable clinical treatment for systemic mycoses, due to its broad antifungal activity and low rate of emerging resistance. There is no consensus on how exactly it kills fungal cells but it is certain that AmB and the closely-related nystatin (Nys) can form pores in membranes and have a higher affinity towards ergosterol than cholesterol. Notably, the high nephro- and hemolytic toxicity of polyenes and their low solubility in water have led to efforts to improve their properties. We present the synthesis of new amphotericin and nystatin amides and a comparative study of the effects of identical modifications of AmB and Nys on the relationship between their structure and properties. Generally, increases in the activity/toxicity ratio were in good agreement with increasing ratios of selective permeabilization of ergosterol- vs. cholesterol-containing membranes. We also show that the introduced modifications had an effect on the sensitivity of mutant yeast strains with alterations in ergosterol biosynthesis to the studied polyenes, suggesting a varying affinity towards intermediate ergosterol precursors. Three new water-soluble nystatin derivatives showed a prominent improvement in safety and were selected as promising candidates for drug development.
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25
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Bacho M, Artigas V, Araya-Contreras T, Bittner M, Escobar CA, Fuentealba M, Becerra J, Fajardo V, San-Martín A. Synthesis, characterisation, crystal structure and antimicrobial evaluation of novel 6-alkoxyergosta-4,6,8(14),22-tetraen-3-one derived from natural ergosta-5,7,22-trien-3β-ol. Nat Prod Res 2023; 37:16-23. [PMID: 34187247 DOI: 10.1080/14786419.2021.1946534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this study, we report a facile transformation starting from 5α-hydroxyergosta-7,22-dien-3,6-dione (1) to afford two novel compounds: 6-methoxyergosta-4,6,8(14),22-tetraen-3-one (2) and 6-ethoxyergosta-4,6,8(14),22-tetraen-3-one (3) using alcoholic acid catalysis. Their structures were elucidated using NMR experiments, FT-IR, MS and X-ray analysis. These compounds were evaluated for antibacterial activity using the disk and broth diffusion test. In those tests, compound 3 was found to be the most significant antibacterial agent. In general, compounds 1-3 showed inhibition zone in the range of 7.00-12.3 mm for S. aureus and S. mutans, meanwhile for Gram-negative bacteria E. coli and Pseudomonas sp. was found to be in the range of 7.00-8.00 mm. For the most active, compound 3, MIC was significantly lower than that reported for ergosterol, in a value of 160 µg/mL. Overall, these compounds were more active than their natural precursor.
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Affiliation(s)
- Mitchell Bacho
- Laboratorio de Productos Naturales, Universidad de Chile, Las Palmeras Santiago, Chile.,Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago, Chile
| | - Vania Artigas
- Laboratorio de Cristalografía, Pontificia Universidad Católica de Valparaíso, Curauma, Valparaíso, Chile
| | - Tiare Araya-Contreras
- Laboratorio de Microbiología y Biotecnología Oral, Universidad Andres Bello, Santiago, Chile
| | - Mauricio Bittner
- Laboratorio de Microbiología y Biotecnología Oral, Universidad Andres Bello, Santiago, Chile.,Facultad de Odontología, Universidad Andres Bello, Santiago, Chile
| | - Carlos A Escobar
- Facultad de Ingeniería, Instituto de Ciencias Químicas Aplicadas, Universidad Autónoma de Chile, Llano Subercaseaux San Miguel, Santiago. Chile
| | - Mauricio Fuentealba
- Laboratorio de Cristalografía, Pontificia Universidad Católica de Valparaíso, Curauma, Valparaíso, Chile
| | - José Becerra
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Victor Fajardo
- Facultad de Ciencias, Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Punta Arenas, Chile
| | - Aurelio San-Martín
- Facultad de Ciencias, Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Punta Arenas, Chile
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26
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Abstract
In recent years, it has become clear that gut microbiota plays a major role in the human body, both in health and disease. Because of that, the gut microbiome and its impact on human well-being are getting wider and wider attention. Studies focused on the liver are not an exception. However, the majority of the analyses are concentrated on the bacterial part of the gut microbiota, while the fungi living in the human intestines are often omitted or underappreciated. This review is focused on the gut mycobiome as an important factor that should be taken into consideration regarding liver homeostasis and its perturbations. We have collected the findings in this field and we discuss their importance. We aim to emphasize the fungal compositional changes related to liver diseases and, by that, provide novel insights into the directions of liver research and gut microbiota as a therapeutic target for liver diseases.
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Affiliation(s)
- Natalia Szóstak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
| | - Marek Figlerowicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
| | - Anna Philips
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
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27
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Frézard F, Aguiar MMG, Ferreira LAM, Ramos GS, Santos TT, Borges GSM, Vallejos VMR, De Morais HLO. Liposomal Amphotericin B for Treatment of Leishmaniasis: From the Identification of Critical Physicochemical Attributes to the Design of Effective Topical and Oral Formulations. Pharmaceutics 2022; 15:pharmaceutics15010099. [PMID: 36678729 PMCID: PMC9864876 DOI: 10.3390/pharmaceutics15010099] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/19/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
The liposomal amphotericin B (AmB) formulation, AmBisome®, still represents the best therapeutic option for cutaneous and visceral leishmaniasis. However, its clinical efficacy depends on the patient's immunological status, the clinical manifestation and the endemic region. Moreover, the need for parenteral administration, its side effects and high cost significantly limit its use in developing countries. This review reports the progress achieved thus far toward the understanding of the mechanism responsible for the reduced toxicity of liposomal AmB formulations and the factors that influence their efficacy against leishmaniasis. It also presents the recent advances in the development of more effective liposomal AmB formulations, including topical and oral liposome formulations. The critical role of the AmB aggregation state and release rate in the reduction of drug toxicity and in the drug efficacy by non-invasive routes is emphasized. This paper is expected to guide future research and development of innovative liposomal formulations of AmB.
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Affiliation(s)
- Frédéric Frézard
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
- Correspondence: ; Tel.: +55-31-34092940
| | - Marta M. G. Aguiar
- Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Lucas A. M. Ferreira
- Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Guilherme S. Ramos
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Thais T. Santos
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Gabriel S. M. Borges
- Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Virgínia M. R. Vallejos
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Helane L. O. De Morais
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
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28
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Kumar P, Kumar P, Singh N, Khajuria S, Patel R, Rajana VK, Mandal D, Velayutham R. Limitations of current chemotherapy and future of nanoformulation-based AmB delivery for visceral leishmaniasis-An updated review. Front Bioeng Biotechnol 2022; 10:1016925. [PMID: 36588956 PMCID: PMC9794769 DOI: 10.3389/fbioe.2022.1016925] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/31/2022] [Indexed: 12/15/2022] Open
Abstract
Visceral leishmaniasis (VL) is the most lethal of all leishmaniasis diseasesand the second most common parasiticdisease after malaria and,still, categorized as a neglected tropical disease (NTD). According to the latest WHO study, >20 Leishmania species spread 0.7-1.0 million new cases of leishmaniasis each year. VL is caused by the genus, Leishmania donovani (LD), which affects between 50,000 and 90,000 people worldwide each year. Lack of new drug development, increasing drug resistance, toxicity and high cost even with the first line of treatmentof Amphotericin B (AmB), demands new formulation for treatment of VLFurther the lack of a vaccine, allowedthe researchers to develop nanofomulation-based AmB for improved delivery. The limitation of AmB is its kidney and liver toxicity which forced the development of costly liposomal AmB (AmBisome) nanoformulation. Success of AmBisome have inspired and attracted a wide range of AmB nanoformulations ranging from polymeric, solid lipid, liposomal/micellar, metallic, macrophage receptor-targetednanoparticles (NP) and even with sophisticated carbon/quantum dot-based AmBnano delivery systems. Notably, NP-based AmB delivery has shown increased efficacy due to increased uptake, on-target delivery and synergistic impact of NP and AmB. In this review, we have discussed the different forms of leishmaniasis disease and their current treatment options with limitations. The discovery, mechanism of action of AmB, clinical status of AmB and improvement with AmBisome over fungizone (AmB-deoxycholate)for VL treatment was further discussed. At last, the development of various AmB nanoformulation was discussed along with its adavantages over traditional chemotherapy-based delivery.
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Affiliation(s)
- Prakash Kumar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Hajipur, India
| | - Pawan Kumar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Hajipur, India
| | - Nidhi Singh
- National Institute of Pharmaceutical Education and Research, Ahmedabad, India
| | - Salil Khajuria
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Hajipur, India
| | - Rahul Patel
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Hajipur, India
| | - Vinod Kumar Rajana
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Hajipur, India
| | - Debabrata Mandal
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Hajipur, India,*Correspondence: Ravichandiran Velayutham, ; Debabrata Mandal,
| | - Ravichandiran Velayutham
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Hajipur, India,National Institute of Pharmaceutical Education and Research, Kolkata, India,*Correspondence: Ravichandiran Velayutham, ; Debabrata Mandal,
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29
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Euliano EM, Sklavounos AA, Wheeler AR, McHugh KJ. Translating diagnostics and drug delivery technologies to low-resource settings. Sci Transl Med 2022; 14:eabm1732. [PMID: 36223447 PMCID: PMC9716722 DOI: 10.1126/scitranslmed.abm1732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Diagnostics and drug delivery technologies engineered for low-resource settings aim to meet their technical design specifications using strategies that are compatible with limited equipment, infrastructure, and operator training. Despite many preclinical successes, very few of these devices have been translated to the clinic. Here, we identify factors that contribute to the clinical success of diagnostics and drug delivery systems for low-resource settings, including the need to engage key stakeholders at an early stage, and provide recommendations for the clinical translation of future medical technologies.
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Affiliation(s)
- Erin M. Euliano
- Department of Bioengineering, Rice University; Houston, Texas 77005, USA
| | - Alexandros A. Sklavounos
- Department of Chemistry, University of Toronto; Toronto, Ontario M5S 3H6, Canada
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto; Toronto, Ontario M5S 3E1, Canada
| | - Aaron R. Wheeler
- Department of Chemistry, University of Toronto; Toronto, Ontario M5S 3H6, Canada
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto; Toronto, Ontario M5S 3E1, Canada
- Institute of Biomedical Engineering, University of Toronto; Toronto, Ontario M5S 3G9, Canada
| | - Kevin J. McHugh
- Department of Bioengineering, Rice University; Houston, Texas 77005, USA
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30
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Indications that the Antimycotic Drug Amphotericin B Enhances the Impact of Platelets on Aspergillus. Antimicrob Agents Chemother 2022; 66:e0068122. [PMID: 36190233 PMCID: PMC9578436 DOI: 10.1128/aac.00681-22] [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] [Indexed: 11/20/2022] Open
Abstract
Platelets are currently thought to harbor antimicrobial functions and might therefore play a crucial role in infections, e.g., those caused by Aspergillus or mucormycetes. The incidence of invasive fungal infections is increasing, particularly during the coronavirus disease 2019 (COVID-19) pandemic, and such infections continue to be life-threatening in immunocompromised patients. For this reason, the interaction of antimycotics with platelets is a key issue to evaluate modern therapeutic regimens. Amphotericin B (AmB) is widely used for the therapy of invasive fungal infections either as deoxycholate (AmB-D) or as a liposomal formulation (L-AmB). We showed that AmB strongly activates platelets within a few minutes. AmB concentrations commonly measured in the blood of patients were sufficient to stimulate platelets, indicating that this effect is highly relevant in vivo. The stimulating effect was corroborated by a broad spectrum of platelet activation parameters, including degranulation, aggregation, budding of microparticles, morphological changes, and enhanced adherence to fungal hyphae. Comparison between the deoxycholate and the liposomal formulation excluded the possibility that the liposomal part of L-Amb is responsible for these effects, as no difference was visible. The induction of platelet activation and alteration by L-AmB resulted in the activation of other parts of innate immunity, such as stimulation of the complement cascade and interaction with granulocytes. These mechanisms might substantially fuel the antifungal immune reaction in invasive mycoses. On the other hand, thrombosis and excessive inflammatory processes might occur via these mechanisms. Furthermore, the viability of L-AmB-activated platelets was consequently decreased, a process that might contribute to thrombocytopenia in patients.
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31
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Singh A, Yadagiri G, Javaid A, Sharma KK, Verma A, Singh OP, Sundar S, Mudavath SL. Hijacking the intrinsic vitamin B 12 pathway for the oral delivery of nanoparticles, resulting in enhanced in vivo anti-leishmanial activity. Biomater Sci 2022; 10:5669-5688. [PMID: 36017751 DOI: 10.1039/d2bm00979j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface-functionalized vitamin B12 (VB12) biocompatible nanoparticles exploit the well-characterized uptake pathway of VB12, shielding it from enzymatic degradation and inadequate absorption. In this perspective, subsequent to escalated mucus interaction and diffusion analysis, the nanoparticles were investigated by immunostaining with the anti-CD320 antibody, and their internalization mechanisms were examined by selectively blocking specific uptake processes. It was observed that their internalization occurred via an energy-dependent clathrin-mediated mechanism, simultaneously highlighting their remarkable ability to bypass the P-glycoprotein efflux. In particular, the synthesized nanoparticles were evaluated for their cytocompatibility by analyzing cellular proliferation, membrane viscoelasticity, and fluidity by fluorescence recovery after photobleaching and oxidative-stress detection, making them well-suited for successful translation to a clinical setup. Our previous in vitro antileishmanial results were paramount for their further in vivo and toxicity analysis, demonstrating their targeted therapeutic efficiency. The augmented surface hydrophilicity, which is attributed to VB12, and monomerization of amphotericin B in the lipid core strengthened the oral bioavailability and stability of the nanoparticles, as evidenced by the fluorescence resonance energy transfer analysis.
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Affiliation(s)
- Aakriti Singh
- Infectious Disease Biology Laboratory, Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, Punjab 140306, India.
| | - Ganesh Yadagiri
- Infectious Disease Biology Laboratory, Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, Punjab 140306, India.
| | - Aaqib Javaid
- Infectious Disease Biology Laboratory, Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, Punjab 140306, India.
| | - Krishna Kumar Sharma
- Department of Pharmacy, Teerthanker Mahaveer University, Moradabad, Uttar Pradesh 244001, India
| | - Anurag Verma
- Department of Pharmacy, Teerthanker Mahaveer University, Moradabad, Uttar Pradesh 244001, India
| | - Om Prakash Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Shyam Sundar
- Infectious Disease Research Laboratory, Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Shyam Lal Mudavath
- Infectious Disease Biology Laboratory, Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, Punjab 140306, India.
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32
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Marena GD, Ramos MADS, Carvalho GC, de Lima LC, Nascimento ALCSD, Sábio RM, Rodero CF, Spósito L, Bauab TM, Chorilli M. Development and characterization of an amphotericin B - loaded nanoemulsion applied to Candida auris biofilms control. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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Alonso L, Rocha OB, de Carvalho Junior MAB, Soares CMDA, Pereira M, Alonso A. Paracoccidioides brasiliensis plasma membrane characterization by EPR spectroscopy and interactions with amphotericin B, miltefosine and nerolidol. J Biomol Struct Dyn 2022:1-11. [PMID: 35787240 DOI: 10.1080/07391102.2022.2093274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Electron paramagnetic resonance (EPR) spectroscopy of spin labels was used to characterize the interactions of amphotericin B (AmB), miltefosine (MIL) and nerolidol (NER) with the plasma membrane of Paracoccidioides brasiliensis. Spin-labeled analogs of stearic acid and steroid androstane distributed into the plasma membrane of the fungus treated with AmB, showed strong interactions with putative AmB/sterol complexes. The observed increase in the EPR parameter 2A// caused by AmB can be interpreted as a remarkable reduction in the spin label mobility and/or an increase in the local polarity. The 2A// parameter reduced gradually as the concentration of MIL and NER increased. The membrane-water partition coefficient (KM/W) of the three compounds under study was estimated based on the minimum concentration of the compounds that causes a change in EPR spectrum. The KM/W values indicated that the affinity of the compounds for the P. brasiliensis membrane follows the order: AmB > MIL > NER. The minimum inhibitory concentration (MIC) values were lower than the respective minimum concentrations of the compounds to cause a change in the EPR spectrum, being ∼3.5-fold lower for AmB, 3.9-fold for MIL and ∼1.4-fold for NER. Taken together, the EPR spectroscopy results suggest that the anti-proliferative effects of the three compounds studied are associated with alterations in cell membranes. One of the most likely consequences of these changes would be electrolyte leakage.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Lais Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Olivia Basso Rocha
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Brazil
| | | | | | - Maristela Pereira
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Brazil
| | - Antonio Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil
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Rahimi F, Amoabediny G, Sabahi H, Zandieh-Doulabi B. Fungal Infected Adipose Stem Cells: The Effects of Novel Lipo-Niosome Nanoparticles Loaded with Amphotericin B and Thymus Essential Oil. CELL JOURNAL 2022; 24:391-402. [PMID: 36043407 PMCID: PMC9428479 DOI: 10.22074/cellj.2022.7967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE In this study, we aimed to develop new Lipo-niosomes based nanoparticles loaded with Amphotericin B (AmB) and Thymus Essential Oil (TEO) and test their effectiveness in the treatment of fungal-infected human adipose stem cells (hASCs). MATERIALS AND METHODS In this experimental study, optimal formulation of AmB and TEO loaded lipo-niosome (based on lipid-surfactant thin-film hydration method) was chemically, and biologically characterized. Therefore, encapsulation capacity, drug release, size, and the survival rate of cells with different concentrations of free and encapsulated AmB/ TEO were evaluated using the MTT method, and its antifungal activity was compared with conventional AmB. RESULTS Lipo-Niosome containing Tween 60 surfactant: cholesterol: Dipalmitoyl phosphatidylcholine (DPPC): Polyethylene glycol (PEG) with a ratio of 20:40:60:3 were chosen as optimal formulation. Lipo-Niosomes entrapment efficiency was 94.15%. The drug release rate after 24 hours was 52%, 54%, and 48% for Lipo-AmB, Lipo-TEO, and Lipo-AmB/TEO, respectively. Physical and chemical characteristics of the Lipo-Niosomes particles indicated size of 200 nm and a dispersion index of 0.32 with a Zeta potential of -24.56 mv. Furthermore, no chemical interaction between drugs and nano-carriers was observed. The cell viability of adipose mesenchymal stem cells exposed to 50 μg/ml of free AmB, free TEO, and free AmB/TEO was 13.4, 58, and 36.9%, respectively. Whereas the toxicity of the encapsulated formulas of these drugs was 48.9, 70.8, and 58.3% respectively. The toxicity of nanoparticles was very low (8.5%) at this concentration. Fluorescence microscopic images showed that the antifungal activity of Lipo-AmB/ TEO was significantly higher than free formulas of AmB, TEO, and AmB/TEO. CONCLUSION In this study, we investigated the efficacy of the TEO/AmB combination, in both free and encapsulatedniosomal form, on the growth of fungal infected-hASCs. The results showed that the AmB/TEO-loaded Lipo-Niosomes can be suggested as a new efficient anti-fungal nano-system for patients treated with hASCs.
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Affiliation(s)
- Fardin Rahimi
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran,Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran,
Tehran, Iran
| | - Ghasem Amoabediny
- Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran,
Tehran, Iran,School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran,Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers-location Vumc and Academic
Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands,P.O.Box: 14155-6619School of Chemical EngineeringCollege of EngineeringUniversity of TehranTehranIran
| | - Hossein Sabahi
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Behrouz Zandieh-Doulabi
- Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran,
Tehran, Iran,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), The University of Amsterdam and Vrije Universiteit
Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
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Haro-Reyes T, Díaz-Peralta L, Galván-Hernández A, Rodríguez-López A, Rodríguez-Fragoso L, Ortega-Blake I. Polyene Antibiotics Physical Chemistry and Their Effect on Lipid Membranes; Impacting Biological Processes and Medical Applications. MEMBRANES 2022; 12:681. [PMID: 35877884 PMCID: PMC9316096 DOI: 10.3390/membranes12070681] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 01/27/2023]
Abstract
This review examined a collection of studies regarding the molecular properties of some polyene antibiotic molecules as well as their properties in solution and in particular environmental conditions. We also looked into the proposed mechanism of action of polyenes, where membrane properties play a crucial role. Given the interest in polyene antibiotics as therapeutic agents, we looked into alternative ways of reducing their collateral toxicity, including semi-synthesis of derivatives and new formulations. We follow with studies on the role of membrane structure and, finally, recent developments regarding the most important clinical applications of these compounds.
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Affiliation(s)
- Tammy Haro-Reyes
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Av. Universidad s/n, Col. Chamilpa, Cuernavaca 62210, Morelos, Mexico; (T.H.-R.); (L.D.-P.); (A.G.-H.)
| | - Lucero Díaz-Peralta
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Av. Universidad s/n, Col. Chamilpa, Cuernavaca 62210, Morelos, Mexico; (T.H.-R.); (L.D.-P.); (A.G.-H.)
| | - Arturo Galván-Hernández
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Av. Universidad s/n, Col. Chamilpa, Cuernavaca 62210, Morelos, Mexico; (T.H.-R.); (L.D.-P.); (A.G.-H.)
| | - Anahi Rodríguez-López
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca 62210, Morelos, Mexico; (A.R.-L.); (L.R.-F.)
| | - Lourdes Rodríguez-Fragoso
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca 62210, Morelos, Mexico; (A.R.-L.); (L.R.-F.)
| | - Iván Ortega-Blake
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Av. Universidad s/n, Col. Chamilpa, Cuernavaca 62210, Morelos, Mexico; (T.H.-R.); (L.D.-P.); (A.G.-H.)
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Paul R, Banik H, Alzaid M, Bhattacharjee D, Hussain SA. Interaction of a Phospholipid and a Coagulating Protein: Potential Candidate for Bioelectronic Applications. ACS OMEGA 2022; 7:17583-17592. [PMID: 35664573 PMCID: PMC9161252 DOI: 10.1021/acsomega.1c07395] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 04/15/2022] [Indexed: 05/31/2023]
Abstract
In the present communication, we have investigated the interaction between a biomembrane component 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) and a coagulating protein protamine sulfate (PS) using the Langmuir-Blodgett (LB) technique. The π-A isotherm, π-t characteristics, and analysis of isotherm curves suggested that PS strongly interacted with DOPC, affecting the fluidity of the DOPC layer. Electrical characterization indicates that PS as well as the PS-DOPC film showed resistive switching behavior suitable for Write Once Read Many (WORM) memory application. Trap-controlled space charge-limited conduction (SCLC) was the key mechanism behind such observed switching. The presence of DOPC affected the SCLC process, leading to lowering of threshold voltage (V Th), which is advantageous in terms of lower power consumption.
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Affiliation(s)
- Ripa Paul
- Thin
Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India
| | - Hritinava Banik
- Thin
Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India
| | - Meshal Alzaid
- Physics
Department, College of Science, Jouf University, P.O. Box 2014, Sakaka, Al-Jouf 75471, Saudi Arabia
| | - Debajyoti Bhattacharjee
- Thin
Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India
| | - Syed Arshad Hussain
- Thin
Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India
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Alonso L, Pimenta LKL, Kipnis A, Alonso A. Mycobacterium abscessus cell wall and plasma membrane characterization by EPR spectroscopy and effects of amphotericin B, miltefosine and nerolidol. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2022; 1864:183872. [PMID: 35085568 DOI: 10.1016/j.bbamem.2022.183872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/24/2021] [Accepted: 01/19/2022] [Indexed: 01/24/2023]
Abstract
Spin label electron paramagnetic resonance (EPR) spectroscopy was used to characterize the components of the Mycobacterium abscessus massiliense cell envelope and their interactions with amphotericin B (AmB), miltefosine (MIL), and nerolidol (NER). Spin labels analogous to stearic acid and phosphatidylcholine (PC) were distributed on an envelope layer with fluidity comparable to other biological membranes, probably the mycobacterial cell wall, because after treatment with AmB a highly rigid spectral component was evident in the EPR spectra. Methyl stearate analogue spin labels found a much more fluid membrane and did not detect the presence of AmB, except for at very high drug concentrations. Unlike other spin-labeled PCs, the TEMPO-PC spin probe, with the nitroxide moiety attached to the choline of the PC headgroup, also did not detect the presence of AmB. On the other hand, the steroid spin labels were not distributed across the membranes of M. abscessus and, instead, were concentrated in some other location of the cell envelope. Both MIL and NER compounds at 10 μM caused increased fluidity in the cell wall and plasma membrane. Furthermore, NER was shown to have a remarkable ability to extract lipids from the mycobacterial cell wall. The EPR results suggest that the resistance of mycobacteria to the action of AmB must be related to the fact that this drug does not reach the bacterial plasma membrane.
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Affiliation(s)
- Lais Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil.
| | - Laryssa Ketelyn Lima Pimenta
- Instituto de Patologia Tropical e Saúde Publica, Departamento de Biociências e Tecnologia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - André Kipnis
- Instituto de Patologia Tropical e Saúde Publica, Departamento de Biociências e Tecnologia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Antonio Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil
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Araque-Marín P, Naranjo Díaz A, Gómez Londoño LF, Jiménez Alzate MDP, Castelli F, Sarpietro MG, Giordani C, Peláez Jaramillo CA. A Langmuir-Blodgett Study of the Interaction between Amphotericin B and Lipids of Histoplasma capsulatum. MEMBRANES 2022; 12:membranes12050483. [PMID: 35629809 PMCID: PMC9147408 DOI: 10.3390/membranes12050483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/22/2022] [Accepted: 04/23/2022] [Indexed: 02/04/2023]
Abstract
Histoplasma capsulatum is a dimorphic, thermal, and nutritional fungus. In the environment and at an average temperature of 28 °C, it develops as a mold that is composed of infecting particles. Once in the host or in cultures at 37 °C, it undergoes a transition into the parasitic form. In the present work, we performed chemical extraction and characterization using chromatography techniques of the associated lipid composition of the external surface of the cell wall of the mycelial phase of two isolates of the H. capsulatum: one clinical and one environmental. Several differences were evidenced in the fatty acids in the phospholipid composition. Surface pressure–area isotherms and compression module curves of the Amphotericin B and lipid extract monolayers, as well as (AmB)-lipid extract mixed monolayers were recorded. Results show a high affinity of AmB towards lipid extracts. The most stable monolayers were formed by AmB + environmental with a mass ratio of 1:3 and AmB + clinical with a mass ratio of 1:2. Knowledge of the AmB aggregation processes at a molecular level and the characterization of the lipid extracts allows the possibility to understand the interaction between the AmB and the lipid fractions of H. capsulatum.
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Affiliation(s)
- Pedronel Araque-Marín
- School of Life Sciences, Universidad Escuela de Ingeniería de Antioquia (EIA), Envigado 055428, Colombia;
| | - Andrea Naranjo Díaz
- Grupo Interdisciplinario de Estudios Moleculares, Institute of Chemistry, Faculty of Exact and Natural Sciences, Universidad de Antioquia, Medellín 050010, Colombia; (A.N.D.); (C.A.P.J.)
| | - Luisa Fernanda Gómez Londoño
- Grupo Micología Médica, Department of Microbiology and Parasitology, Faculty of Medicine, Universidad de Antioquia, Calle 70 No. 52-21, Medellín 050010, Colombia; (L.F.G.L.); (M.d.P.J.A.)
| | - María del Pilar Jiménez Alzate
- Grupo Micología Médica, Department of Microbiology and Parasitology, Faculty of Medicine, Universidad de Antioquia, Calle 70 No. 52-21, Medellín 050010, Colombia; (L.F.G.L.); (M.d.P.J.A.)
| | - Francesco Castelli
- Department of Drug and Health Sciences, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy;
| | - Maria Grazia Sarpietro
- Department of Drug and Health Sciences, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy;
- Correspondence:
| | - Cristiano Giordani
- Institute of Physics, Faculty of Exact and Natural Sciences, Universidad de Antioquia, Calle 70 No. 52-21, Medellín 050010, Colombia;
- Grupo Productos Naturales Marinos, Faculty of Pharmaceutical and Food Sciences, Universidad de Antioquia, Calle 70 No. 52-21, Medellín 050010, Colombia
| | - Carlos Alberto Peláez Jaramillo
- Grupo Interdisciplinario de Estudios Moleculares, Institute of Chemistry, Faculty of Exact and Natural Sciences, Universidad de Antioquia, Medellín 050010, Colombia; (A.N.D.); (C.A.P.J.)
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Mehal WZ, Schwabe RF. A disease-promoting role of the intestinal mycobiome in non-alcoholic fatty liver disease. J Hepatol 2022; 76:765-767. [PMID: 35066086 DOI: 10.1016/j.jhep.2021.12.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 12/24/2021] [Indexed: 12/04/2022]
Affiliation(s)
- Wajahat Z Mehal
- Section of Digestive Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA; VA Connecticut Healthcare System, West Haven, CT, USA
| | - Robert F Schwabe
- Department of Medicine, Columbia University, New York, NY 10032, USA; Institute of Human Nutrition, New York, NY 10032, USA.
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40
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Bohner F, Papp C, Gácser A. The effect of antifungal resistance development on the virulence of Candida species. FEMS Yeast Res 2022; 22:6552956. [PMID: 35325128 PMCID: PMC9466593 DOI: 10.1093/femsyr/foac019] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/24/2022] [Accepted: 03/21/2022] [Indexed: 11/12/2022] Open
Abstract
In recent years, the relevance of diseases associated with fungal pathogens increased worldwide. Members of the Candida genus are responsible for the greatest number of fungal bloodstream infections every year. Epidemiological data consistently indicate a modest shift toward non-albicans species, albeit Candidaalbicans is still the most recognizable species within the genus. As a result, the number of clinically relevant pathogens has increased, and, despite their distinct pathogenicity features, the applicable antifungal agents remained the same. For bloodstream infections, only three classes of drugs are routinely used, namely polyenes, azoles and echinocandins. Antifungal resistance toward all three antifungal drug classes frequently occurs in clinical settings. Compared with the broad range of literature on virulence and antifungal resistance of Candida species separately, only a small portion of studies examined the effect of resistance on virulence. These studies found that resistance to polyenes and echinocandins concluded in significant decrease in the virulence in different Candida species. Meanwhile, in some cases, resistance to azole type antifungals resulted in increased virulence depending on the species and isolates. These findings underline the importance of studies aiming to dissect the connections of virulence and resistance in Candida species.
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Affiliation(s)
- Flora Bohner
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Csaba Papp
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Attila Gácser
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.,MTA-SZTE "Lendület" Mycobiome Research Group, University of Szeged, Szeged, Hungary
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Baghirova AA, Kasumov KM. Antifungal Macrocycle Antibiotic Amphotericin B-Its Present and Future. Multidisciplinary Perspective for the Use in the Medical Practice. BIOCHEMISTRY (MOSCOW) SUPPLEMENT. SERIES B, BIOMEDICAL CHEMISTRY 2022; 16:1-12. [PMID: 35194486 PMCID: PMC8853366 DOI: 10.1134/s1990750822010024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 06/15/2021] [Accepted: 06/22/2021] [Indexed: 12/13/2022]
Abstract
This review is devoted to a broad analysis of the results of studies of the effect of macrocyclic antifungal polyene antibiotic amphotericin B on cell membranes. A detailed study of polyenes has shown that some of them can have not only antifungal, but also antiviral and antitumor effects. Under conditions of global pandemic fungal pathology develops especially quickly and in this case leads to invasive aspergillosis, which contributes to the complication of coronavirus infection in the lungs and even secondary infection with invasive aspergillosis. The treatment of an invasive form of bronchopulmonary aspergillosis is directly related to the immunomodulatory and immunostimulating properties of the macrocyclic polyene drug amphotericin B. The article presents experimental data on the study of the biological activity and membrane properties of amphotericin B and the effect of its chemically modified derivatives, as well as liposomal forms of amphotericin B on viral, bacterial and fungal infections. The mechanism of action of amphotericin B and its analogues is based on their interaction with cellular and lipid membranes, followed by formation of ion channels of molecular size in the membranes. The importance of these studies is that polyenes are sensitive to membranes that contain sterols of a certain structure. The analysis showed that pathogenic fungal cells containing ergosterol were 10-100 times more sensitive to polyene antibiotics than host cell membranes containing cholesterol. The high sterol selectivity of the action of polyenes opens broad prospects for the use of polyene antifungal drugs in practical medicine and pharmacology in the treatment of invasive mycoses and the prevention of atherosclerosis. In this context, it should be noted that polyene antibiotics are the main tool in the study of the biochemical mechanism of changes in the permeability of cell membranes for energy-dependent substrates. Chemical and genetic engineering transformation of the structure of polyene antibiotic molecules opens prospects for the identification and creation of new biologically active forms of the antibiotic that have a high selectivity of action in the treatment of pathogenic infections.
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Affiliation(s)
- A. A. Baghirova
- Institute of Botany, Azerbaijan National Academy of Sciences, Patamdartskoe shosse 40, AZ1004 Baku, Azerbaijan
| | - Kh. M. Kasumov
- Institute of Botany, Azerbaijan National Academy of Sciences, Patamdartskoe shosse 40, AZ1004 Baku, Azerbaijan
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Yakobov N, Mahmoudi N, Grob G, Yokokawa D, Saga Y, Kushiro T, Worrell D, Roy H, Schaller H, Senger B, Huck L, Riera Gascon G, Becker HD, Fischer F. RNA-dependent synthesis of ergosteryl-3β-O-glycine in Ascomycota expands the diversity of steryl-amino acids. J Biol Chem 2022; 298:101657. [PMID: 35131263 PMCID: PMC8913301 DOI: 10.1016/j.jbc.2022.101657] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 01/13/2022] [Accepted: 01/16/2022] [Indexed: 12/11/2022] Open
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Improved In Vitro Anti-Mucorales Activity and Cytotoxicity of Amphotericin B with a Pegylated Surfactant. J Fungi (Basel) 2022; 8:jof8020121. [PMID: 35205875 PMCID: PMC8876526 DOI: 10.3390/jof8020121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/20/2022] [Accepted: 01/25/2022] [Indexed: 11/27/2022] Open
Abstract
The aim of this study was to evaluate the effect of the combination of amphotericin B (AmB) and various non-ionic surfactants on the anti-Mucorales activity of AmB, the toxicity of the combination on eukaryotic cells and the modification of AmB aggregation states. Checkerboards were performed on five genera of Mucorales (12 strains) using several combinations of different surfactants and AmB. These data were analyzed by an Emax model. The effect of surfactants on the cytotoxic activity of AmB was then evaluated for red blood cells and two eukaryotic cell lines by absorbance and propidium iodide internalization. Finally, the effect of polyethylene glycol (15)-hydroxystearate (PEG15HS) on the aggregation states of AmB was evaluated by UV-visible spectrometry. PEG15HS increased the efficacy of AmB on four of the five Mucorales genera, and MICs of AmB were decreased up to 68-fold for L. ramosa. PEG15HS was the only surfactant to not increase the cytotoxic activity of AmB. Finally, the analysis of AmB aggregation states showed that the increased efficacy of AmB and the absence of toxicity are related to an increase in monomeric and polyaggregated forms of AmB at the detriment of the dimeric form. In conclusion, PEG15HS increases the in vitro efficacy of AmB against Mucorales at low concentration, without increasing its toxicity; this combination could therefore be evaluated in the treatment of mucormycosis.
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Abstract
Virus entry, consisting of attachment to and penetration into the host target cell, is the first step of the virus life cycle and is a critical 'do or die' event that governs virus emergence in host populations. Most antiviral vaccines induce neutralizing antibodies that prevent virus entry into cells. However, while the prevention of virus invasion by humoral immunity is well appreciated, considerably less is known about the immune defences present within cells (known as intrinsic immunity) that interfere with virus entry. The interferon-induced transmembrane (IFITM) proteins, known for inhibiting fusion between viral and cellular membranes, were once the only factors known to restrict virus entry. However, the progressive development of genetic and pharmacological screening platforms and the onset of the COVID-19 pandemic have galvanized interest in how viruses infiltrate cells and how cells defend against it. Several host factors with antiviral potential are now implicated in the regulation of virus entry, including cholesterol 25-hydroxylase (CH25H), lymphocyte antigen 6E (LY6E), nuclear receptor co-activator protein 7 (NCOA7), interferon-γ-inducible lysosomal thiol reductase (GILT), CD74 and ARFGAP with dual pleckstrin homology domain-containing protein 2 (ADAP2). This Review summarizes what is known and what remains to be understood about the intrinsic factors that form the first line of defence against virus infection.
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Büchele MLC, Filippin-Monteiro FB, de Lima B, Camargo CDJ, Restrepo JAS, Souza LC, Creczynski-Pasa TB, Caumo KS. Super aggregated amphotericin B with a thermoreversible in situ gelling ophthalmic system for amoebic keratitis treatment. Acta Trop 2021; 224:106144. [PMID: 34562424 DOI: 10.1016/j.actatropica.2021.106144] [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: 03/12/2021] [Revised: 08/31/2021] [Accepted: 09/09/2021] [Indexed: 11/30/2022]
Abstract
Acanthamoeba spp. are the causative agents of a sight-threatening infection of the cornea known as Acanthamoeba keratitis (AK). Amphotericin B - deoxycholate (AB) is used in the treatment of infectious keratitis, however, its topical administration has side effects as blepharitis, iritis, and painful instillation. In this context, the preheating of AB can decrease its toxicity by the formation of super aggregates (hAB). hAB associated with a thermoreversible in situ gelling ophthalmic system is a promising option due to the latter biocompatibility, low toxicity, and high residence time on the ocular surface. Our objective was to develop a topical ocular formulation of hAB for the treatment of AK. After heating at 70°C for 20 min, hAB was incorporated into a thermoreversible gelling system. The amebicidal activity of AB and hAB was evaluated against trophozoites and cysts of A. castellanii (ATCC 50492) and a regional clinical isolate (IC01). The results showed that the preheating of AB did not change the pharmacological action of the drug, with the amebicidal effect of AB and hAB under trophozoites and cysts of Acanthamoeba spp. The thermoreversible system remained stable, allowing the increase of drug retention time. For assessment of cytotoxicity, HUVEC (ATCC® CRL-1730) cells were challenged with AB and hAB for 48h. Cell viability was assessed, and hAB did not show cytotoxicity for HUVEC cells. As far as we know this was the first study that showed the preheated AB associated with a thermoreversible in situ gelling ophthalmic system as a promising system for topical ocular topical administration of hAB for AK therapy.
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Affiliation(s)
- Maria Luiza Carneiro Büchele
- Universidade Federal de Santa Catarina (UFSC), Centro de Ciências da Saúde, Departamento de Análises Clínicas, Laboratório de Estudos de Protozoários Emergentes e Oportunistas. CEP: 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Fabíola Branco Filippin-Monteiro
- Universidade Federal de Santa Catarina (UFSC), Centro de Ciências da Saúde, Departamento de Análises Clínicas, Laboratório de Imunobiologia do Tecido Adiposo. CEP: 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Barbara de Lima
- Universidade Federal de Santa Catarina (UFSC), Centro de Ciências da Saúde, Departamento de Análises Clínicas, Laboratório de Imunobiologia do Tecido Adiposo. CEP: 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Carolina de Jesus Camargo
- Universidade Federal de Santa Catarina (UFSC), Centro de Ciências da Saúde, Departamento de Análises Clínicas, Laboratório de Estudos de Protozoários Emergentes e Oportunistas. CEP: 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Jelver Alexander Sierra Restrepo
- Universidade Federal de Santa Catarina (UFSC), Centro de Ciências da Saúde, Departamento de Análises Clínicas, Grupo de Estudos de Interações entre Micro e Macromoléculas, CEP: 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Liliete Canes Souza
- Universidade Federal de Santa Catarina (UFSC), Centro de Ciências da Saúde, Departamento de Análises Clínicas, Laboratório de Imunobiologia do Tecido Adiposo. CEP: 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Tania Beatriz Creczynski-Pasa
- Universidade Federal de Santa Catarina (UFSC), Centro de Ciências da Saúde, Departamento de Análises Clínicas, Grupo de Estudos de Interações entre Micro e Macromoléculas, CEP: 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Karin Silva Caumo
- Universidade Federal de Santa Catarina (UFSC), Centro de Ciências da Saúde, Departamento de Análises Clínicas, Laboratório de Estudos de Protozoários Emergentes e Oportunistas. CEP: 88040-970, Florianópolis, Santa Catarina, Brazil..
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Tenchov R, Bird R, Curtze AE, Zhou Q. Lipid Nanoparticles─From Liposomes to mRNA Vaccine Delivery, a Landscape of Research Diversity and Advancement. ACS NANO 2021; 15:16982-17015. [PMID: 34181394 DOI: 10.1021/acsnano.1c04996] [Citation(s) in RCA: 754] [Impact Index Per Article: 251.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Lipid nanoparticles (LNPs) have emerged across the pharmaceutical industry as promising vehicles to deliver a variety of therapeutics. Currently in the spotlight as vital components of the COVID-19 mRNA vaccines, LNPs play a key role in effectively protecting and transporting mRNA to cells. Liposomes, an early version of LNPs, are a versatile nanomedicine delivery platform. A number of liposomal drugs have been approved and applied to medical practice. Subsequent generations of lipid nanocarriers, such as solid lipid nanoparticles, nanostructured lipid carriers, and cationic lipid-nucleic acid complexes, exhibit more complex architectures and enhanced physical stabilities. With their ability to encapsulate and deliver therapeutics to specific locations within the body and to release their contents at a desired time, LNPs provide a valuable platform for treatment of a variety of diseases. Here, we present a landscape of LNP-related scientific publications, including patents and journal articles, based on analysis of the CAS Content Collection, the largest human-curated collection of published scientific knowledge. Rising trends are identified, such as nanostructured lipid carriers and solid lipid nanoparticles becoming the preferred platforms for numerous formulations. Recent advancements in LNP formulations as drug delivery platforms, such as antitumor and nucleic acid therapeutics and vaccine delivery systems, are discussed. Challenges and growth opportunities are also evaluated in other areas, such as medical imaging, cosmetics, nutrition, and agrochemicals. This report is intended to serve as a useful resource for those interested in LNP nanotechnologies, their applications, and the global research effort for their development.
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Affiliation(s)
- Rumiana Tenchov
- CAS, a division of the American Chemical Society, Columbus, Ohio 43210, United States
| | - Robert Bird
- CAS, a division of the American Chemical Society, Columbus, Ohio 43210, United States
| | - Allison E Curtze
- CAS, a division of the American Chemical Society, Columbus, Ohio 43210, United States
| | - Qiongqiong Zhou
- CAS, a division of the American Chemical Society, Columbus, Ohio 43210, United States
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Fan Y, Korfanty GA, Xu J. Genetic Analyses of Amphotericin B Susceptibility in Aspergillus fumigatus. J Fungi (Basel) 2021; 7:860. [PMID: 34682281 PMCID: PMC8538161 DOI: 10.3390/jof7100860] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 09/28/2021] [Accepted: 10/11/2021] [Indexed: 11/25/2022] Open
Abstract
Aspergillus fumigatus is a ubiquitous saprophytic mold that can cause a range of clinical syndromes, from allergic reactions to invasive infections. Amphotericin B (AMB) is a polyene antifungal drug that has been used to treat a broad range of systemic mycoses since 1958, including as a primary treatment option against invasive aspergillosis in regions with high rates (≥10%) of environmental triazole resistance. However, cases of AMB-resistant A. fumigatus strains have been increasingly documented over the years, and high resistance rates were recently reported in Brazil and Canada. The objective of this study is to identify candidate mutations associated with AMB susceptibility using a genome-wide association analysis of natural strains, and to further investigate a subset of the mutations in their putative associations with differences in AMB minimum inhibitory concentration (MIC) and in growths at different AMB concentrations through the analysis of progeny from a laboratory genetic cross. Together, our results identified a total of 34 candidate single-nucleotide polymorphisms (SNPs) associated with AMB MIC differences-comprising 18 intergenic variants, 14 missense variants, one synonymous variant, and one non-coding transcript variant. Importantly, progeny from the genetic cross allowed us to identify putative SNP-SNP interactions impacting progeny growth at different AMB concentrations.
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Affiliation(s)
| | | | - Jianping Xu
- Department of Biology, McMaster University, Hamilton, ON L8S 4K1, Canada; (Y.F.); (G.A.K.)
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Baghirova AA, Kasumov KM. [Antifungal macrocycle antibiotic amphotericin B - its present and future. Multidisciplinary perspective for the use in the medical practice]. BIOMEDIT︠S︡INSKAI︠A︡ KHIMII︠A︡ 2021; 67:311-322. [PMID: 34414889 DOI: 10.18097/pbmc20216704311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This review is devoted to a broad analysis of the results of studies of the effect of macrocyclic antifungal polyene antibiotic amphotericin B on cell membranes. A multi-prolonged study of polyenes showed that some of them can have not only antifungal, but also antiviral and antitumor action. Fungal pathology develops especially quickly and in this case leads to invasive aspergillosis, which contributes to the complication of coronavirus infection in the lungs and even secondary infection with invasive aspergillosis in the context of a global pandemic. The treatment of an invasive form of bronchopulmonary aspergillosis is directly related to the immunomodulatory and immunostimulating properties of the macrocyclic polyene drug amphotericin B. The article presents experimental data on the study of the biological activity and membrane properties of amphotericin B and the effect of its chemically modified derivatives, as well as liposomal forms of amphotericin B on viral, bacterial and fungal infections. The mechanism of action of amphotericin B and its analogues is based on their interaction with cellular and lipid membranes, by forming ion channels of molecular size in them. The importance of these studies is that polyenes are sensitive to membranes that contain sterols of a certain structure. The analysis showed that pathogenic fungal cells containing ergosterol were 10-100 times more sensitive to polyene antibiotics than host cell membranes containing cholesterol. The high sterol selectivity of the action of polyenes opens up broad prospects for the use of polyene antifungal drugs in practical medicine and pharmacology in the treatment of invasive mycoses and the prevention of atherosclerosis. In this connection, it should be noted that polyene antibiotics are the main tool in the study of the biochemical mechanism of changes in the permeability of cell membranes for energy-dependent substrates. Chemical and genetic engineering transformation of the structure of polyene antibiotic molecules opens up prospects for the identification and creation of new biologically active forms of the antibiotic that have a high selectivity of action in the treatment of pathogenic infections.
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Affiliation(s)
- A A Baghirova
- Institute of Botany, Azerbaijan National Academy of Sciences, Baku, Azerbaijan
| | - Kh M Kasumov
- Institute of Botany, Azerbaijan National Academy of Sciences, Baku, Azerbaijan
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Arias ER, Angarita-Villamizar V, Baena Y, Parra-Giraldo C, Perez LD. Phospholipid-Conjugated PEG- b-PCL Copolymers as Precursors of Micellar Vehicles for Amphotericin B. Polymers (Basel) 2021; 13:polym13111747. [PMID: 34071785 PMCID: PMC8199447 DOI: 10.3390/polym13111747] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/19/2021] [Accepted: 05/21/2021] [Indexed: 11/29/2022] Open
Abstract
Amphotericin B (AmB) is a widely used antifungal that presents a broad action spectrum and few reports on the development of resistance. However, AmB is highly toxic, causing renal failure in a considerable number of treated patients. Although when AmB is transported via polymer micelles (PMs) as delivery vehicles its nephrotoxicity has been successfully attenuated, this type of nanoparticle has limitations, such as low encapsulation capacity and poor stability in aqueous media. In this research, the effect of modifying polyethyleglicol-block-poly(ε-caprolactone) (PEG-b-PCL) with 1,2-distearoyl-sn-glycero-3-phosphorylethanolamine (DSPE) on the performance of PMs as vehicles for AmB was studied. PEG-b-PCL with two different lengths of a PCL segment was prepared via ring opening polymerisation and modified with DSPE at a post-synthesis stage through amidation. Upon modification with DSPE, a copolymer was self-assembled, thereby producing particles with hydrodynamic diameters below 100 nm and a lower critical micelle concentration than that of the raw copolymers. Likewise, in the presence of DSPE, the loading capacity of AmB increased because of the formed intermolecular interactions, such as hydrogen bonds, which also caused a lower aggregation of this drug. The assessment of in vitro toxicity against red blood cells indicated that the toxicity of AmB decreased upon encapsulation; however, its antifungal action against clinical yeasts was maintained and enhanced, as indicated by a decrease in its minimum inhibitory concentration.
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Affiliation(s)
- Elsa R. Arias
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Bogotá, Carrera 45 N° 26-85, Bogotá 11001, Colombia; (E.R.A.); (V.A.-V.)
| | - Vivian Angarita-Villamizar
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Bogotá, Carrera 45 N° 26-85, Bogotá 11001, Colombia; (E.R.A.); (V.A.-V.)
| | - Yolima Baena
- Grupo de Investigación SILICOMOBA, Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Bogotá, Carrera 30 # 45-03, Bogotá 11001, Colombia
- Correspondence: (Y.B.); (C.P.-G.); (L.D.P.); Tel.: +57-1316-5000 (Y.B. & L.D.P.); +57-1320-8320 (C.P.-G.)
| | - Claudia Parra-Giraldo
- Unidad de Proteómica y Micosis Humanas, Grupo de Enfermedades Infecciosas, Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
- Correspondence: (Y.B.); (C.P.-G.); (L.D.P.); Tel.: +57-1316-5000 (Y.B. & L.D.P.); +57-1320-8320 (C.P.-G.)
| | - Leon D. Perez
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Bogotá, Carrera 45 N° 26-85, Bogotá 11001, Colombia; (E.R.A.); (V.A.-V.)
- Correspondence: (Y.B.); (C.P.-G.); (L.D.P.); Tel.: +57-1316-5000 (Y.B. & L.D.P.); +57-1320-8320 (C.P.-G.)
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Mioka T, Guo T, Wang S, Tsuji T, Kishimoto T, Fujimoto T, Tanaka K. Characterization of micron-scale protein-depleted plasma membrane domains in phosphatidylserine-deficient yeast cells. J Cell Sci 2021; 135:261783. [PMID: 34000034 DOI: 10.1242/jcs.256529] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 03/16/2021] [Indexed: 12/30/2022] Open
Abstract
Membrane phase separation to form micron-scale domains of lipids and proteins occurs in artificial membranes; however, a similar large-scale phase separation has not been reported in the plasma membrane of the living cells. We show here that a stable micron-scale protein-depleted region is generated in the plasma membrane of yeast mutants lacking phosphatidylserine at high temperatures. We named this region the 'void zone'. Transmembrane proteins and certain peripheral membrane proteins and phospholipids are excluded from the void zone. The void zone is rich in ergosterol, and requires ergosterol and sphingolipids for its formation. Such properties are also found in the cholesterol-enriched domains of phase-separated artificial membranes, but the void zone is a novel membrane domain that requires energy and various cellular functions for its formation. The formation of the void zone indicates that the plasma membrane in living cells has the potential to undergo phase separation with certain lipid compositions. We also found that void zones were frequently in contact with vacuoles, in which a membrane domain was also formed at the contact site.
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Affiliation(s)
- Tetsuo Mioka
- Division of Molecular Interaction, Institute for Genetic Medicine, Hokkaido University Graduate School of Life Science, Sapporo, Hokkaido 060-0815, Japan
| | - Tian Guo
- Division of Molecular Interaction, Institute for Genetic Medicine, Hokkaido University Graduate School of Life Science, Sapporo, Hokkaido 060-0815, Japan
| | - Shiyao Wang
- Division of Molecular Interaction, Institute for Genetic Medicine, Hokkaido University Graduate School of Life Science, Sapporo, Hokkaido 060-0815, Japan
| | - Takuma Tsuji
- Laboratory of Molecular Cell Biology, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Takuma Kishimoto
- Division of Molecular Interaction, Institute for Genetic Medicine, Hokkaido University Graduate School of Life Science, Sapporo, Hokkaido 060-0815, Japan
| | - Toyoshi Fujimoto
- Laboratory of Molecular Cell Biology, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Kazuma Tanaka
- Division of Molecular Interaction, Institute for Genetic Medicine, Hokkaido University Graduate School of Life Science, Sapporo, Hokkaido 060-0815, Japan
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