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Zadeh Mehrizi T, Mosaffa N, Vodjgani M, Ebrahimi Shahmabadi H. Advances in nanotechnology for improving the targeted delivery and activity of amphotericin B (2011-2023): a systematic review. Nanotoxicology 2024; 18:231-258. [PMID: 38646931 DOI: 10.1080/17435390.2024.2340467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 04/02/2024] [Indexed: 04/25/2024]
Abstract
Amphotericin B (AmB) is a broad-spectrum therapeutic and effective drug, but it has serious side effects of toxicity and solubility. Therefore, reducing its toxicity should be considered in therapeutic applications. Nanotechnology has paved the way to improve drug delivery systems and reduce toxicity. The present study, for the first time, comprehensively reviews the studies from 2011 to 2023 on reducing the in vitro toxicity of AmB. The findings showed that loading AmB with micellar structures, nanostructured lipid carriers, liposomes, emulsions, poly lactide-co-glycolide acid, chitosan, dendrimers, and other polymeric nanoparticles increases the biocompatibility and efficacy of the drug and significantly reduces toxicity. In addition, modified carbon nanoparticles (including graphene, carbon nanotubes, and carbon dots) with positively charged amine groups, PEI, and other components showed favorable drug delivery properties. Uncoated and coated magnetic nanoparticles and silver NPs-AmB composites had less cytotoxicity and more antifungal activity than free AmB. Citrate-reduced GNPs and lipoic acid-functionalized GNPs were also effective nanocarriers to reduce AmB cytotoxicity and improve anti-leishmania efficacy. In addition, zinc oxide-NPs and PEGylated zinc oxide-NPs showed favorable antifungal activity and negligible toxicity. According to a review study, carbon-based nanoparticles, metal nanoparticles, and especially polymer nanoparticles caused some reduction in the toxicity and improved solubility of AmB in water. Overall, considering the discussed nanocarriers, further research on the application of nanotechnology as a cost-effective candidate to improve the efficiency and reduce the cytotoxicity of AmB is recommended.
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Affiliation(s)
| | - Nariman Mosaffa
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Vodjgani
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hasan Ebrahimi Shahmabadi
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
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Chan JC, Dear J, Palm C, Reagan K. Incidence of acute kidney injury in dogs with systemic mycotic infections treated with amphotericin B (1996-2020). J Vet Intern Med 2023; 37:1030-1037. [PMID: 37148178 PMCID: PMC10229337 DOI: 10.1111/jvim.16728] [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: 09/17/2022] [Accepted: 04/15/2023] [Indexed: 05/08/2023] Open
Abstract
BACKGROUND Amphotericin-B (AmB) is an essential medication for the treatment of life-threatening systemic mycoses but the incidence and risk factors for acute kidney injury (AKI) after its administration are not known in dogs. OBJECTIVE Determine the incidence of and risk factors for AKI in dogs receiving AmB. ANIMALS Fifty-one client owned dogs receiving AmB for the treatment of systemic mycoses. METHODS Retrospective study. Signalment, potential risk factors, AKI development (creatinine ≥0.3 mg/dL from baseline), drug formulation (deoxycholate [AmB-D] or lipid complex [ABLC]), dose, and treatment duration were recorded. The probability of an AKI diagnosis was evaluated using a log-rank test. The incidence of AKI and odds ratios were calculated for potential risk factors. RESULTS Incidence of AKI was 5/12 (42%) for dogs receiving AmB-D and 14/39 (36%) for dogs receiving ABLC. Of the 19 dogs that developed AKI, 16 (84%) continued treatment after a pause in the planned dosing protocol. Fifty percent of dogs received a cumulative dose of 6.9 mg/kg for AmB-D and 22.5 mg/kg for ABLC (P < .01) at time of AKI diagnosis. ICU hospitalization (odds ratio [OR] 0.21, 95% confidence interval [CI]: 0.58-0.87) and inpatient status (OR 0.25, 95% CI: 0.07-0.86) were associated with decreased odds of AKI. CONCLUSIONS AND CLINICAL IMPORTANCE Incidence of AKI with AmB is common but does not always preclude continued treatment. The incidence of AKI is similar between AmB-D and ABLC, but dogs receiving ABLC tolerated a higher cumulative total dose before AKI diagnosis.
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Affiliation(s)
- Jennifer C Chan
- William R. Pritchard Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Jonathan Dear
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Carrie Palm
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Krystle Reagan
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California, USA
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Leishmanicidal Activity of Guanidine Derivatives against Leishmania infantum. Trop Med Infect Dis 2023; 8:tropicalmed8030141. [PMID: 36977142 PMCID: PMC10051705 DOI: 10.3390/tropicalmed8030141] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/19/2023] [Accepted: 02/17/2023] [Indexed: 03/02/2023] Open
Abstract
Leishmaniasis is a neglected tropical infectious disease with thousands of cases annually; it is of great concern to global health, particularly the most severe form, visceral leishmaniasis. Visceral leishmaniasis treatments are minimal and have severe adverse effects. As guanidine-bearing compounds have shown antimicrobial activity, we analyzed the cytotoxic effects of several guanidine-bearing compounds on Leishmania infantum in their promastigote and amastigote forms in vitro, their cytotoxicity in human cells, and their impact on reactive nitrogen species production. LQOFG-2, LQOFG-6, and LQOFG-7 had IC50 values of 12.7, 24.4, and 23.6 µM, respectively, in promastigotes. These compounds exhibited cytotoxicity in axenic amastigotes at 26.1, 21.1, and 18.6 µM, respectively. The compounds showed no apparent cytotoxicity in cells from healthy donors. To identify mechanisms of action, we evaluated cell death processes by annexin V and propidium iodide staining and nitrite production. Guanidine-containing compounds caused a significant percentage of death by apoptosis in amastigotes. Independent of L. infantum infection, LQOFG-7 increased nitrite production in peripheral blood mononuclear cells, which suggests a potential mechanism of action for this compound. Therefore, these data suggest that guanidine derivatives are potential anti-microbial molecules, and further research is needed to fully understand their mechanism of action, especially in anti-leishmanial studies.
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Jamal F, Altaf I, Ahmed G, Asad S, Ahmad H, Zia Q, Azhar A, Farheen S, Shafi T, Karim S, Zubair S, Owais M. Amphotericin B Nano-Assemblies Circumvent Intrinsic Toxicity and Ensure Superior Protection in Experimental Visceral Leishmaniasis with Feeble Toxic Manifestation. Vaccines (Basel) 2023; 11:vaccines11010100. [PMID: 36679946 PMCID: PMC9866558 DOI: 10.3390/vaccines11010100] [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: 11/12/2022] [Revised: 12/19/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023] Open
Abstract
In spite of its high effectiveness in the treatment of both leishmaniasis as well as a range of fungal infections, the free form of the polyene antibiotic amphotericin B (AmB) does not entertain the status of the most preferred drug of choice in clinical settings. The high intrinsic toxicity of the principal drug could be considered the main impedance in the frequent medicinal use of this otherwise very effective antimicrobial agent. Taking into consideration this fact, the pharma industry has introduced many novel dosage forms of AmB to alleviate its toxicity issues. However, the limited production, high cost, requirement for a strict cold chain, and need for parenteral administration are some of the limitations that explicitly compel professionals to look for the development of an alternate dosage form of this important drug. Considering the fact that the nano-size dimensions of drug formulation play an important role in increasing the efficacy of the core drug, we employed a green method for the development of nano-assemblies of AmB (AmB-NA). The as-synthesized AmB-NA manifests desirable pharmacokinetics in the treated animals. The possible mechanistic insight suggested that as-synthesized AmB-NA induces necrosis-mediated cell death and severe mitochondrial dysfunction in L. donovani promastigotes by triggering depolarization of mitochondrial membrane potential. In vivo studies demonstrate a noticeable decline in parasite burden in the spleen, liver, and bone marrow of the experimental BALB/c mice host. In addition to successfully suppressing the Leishmania donovani, the as-formed AmB-NA formulation also modulates the host immune system with predominant Th1 polarization, a key immune defender that facilitates the killing of the intracellular parasite.
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Affiliation(s)
- Fauzia Jamal
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Ishrat Altaf
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Ghufran Ahmed
- Department of Microbiology, Rajendra Memorial Research Institute of Medical Sciences, Patna 800007, India
| | - Sheikh Asad
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Hira Ahmad
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, India
| | - Qamar Zia
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Asim Azhar
- Neat Meatt Biotech Private Limited, Bio-NEST-UDSC, University of Delhi (South Campus), New Delhi 110021, India
| | - Saba Farheen
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Taj Shafi
- Department of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences, Patna 800007, India
| | - Shabana Karim
- Department of Botany, Anugrah Narayan College, Patliputra University, Patna 800013, India
| | - Swaleha Zubair
- Department of Computer Science, Aligarh Muslim University, Aligarh 202002, India
| | - Mohammad Owais
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
- Correspondence:
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Egger M, Bellmann R, Krause R, Boyer J, Jakšić D, Hoenigl M. Salvage Treatment for Invasive Aspergillosis and Mucormycosis: Challenges, Recommendations and Future Considerations. Infect Drug Resist 2023; 16:2167-2178. [PMID: 37077251 PMCID: PMC10106327 DOI: 10.2147/idr.s372546] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 03/23/2023] [Indexed: 04/21/2023] Open
Abstract
Invasive mold diseases are devastating systemic infections which demand meticulous care in selection, dosing, and therapy monitoring of antifungal drugs. Various circumstances regarding PK/PD properties of the applied drug, resistance/tolerance of the causative pathogen or host intolerability can lead to failure of the initial antifungal therapy. This necessitates treatment adaption in the sense of switching antifungal drug class or potentially adding another drug for a combination therapy approach. In the current state of drastically limited options of antifungal drug classes adaption of therapy remains challenging. Current guidelines provide restricted recommendations only and emphasize individual approaches. However, novel antifungals, incorporating innovative mechanisms of action, show promising results in late stage clinical development. These will expand options for salvage therapy in the future potentially as monotherapy or in combination with conventional or other novel antifungals. We outline current recommendations for salvage therapy including PK/PD considerations as well as elucidate possible future treatment options for invasive aspergillosis and mucormycosis.
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Affiliation(s)
- Matthias Egger
- Division of Infectious Diseases, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Biotechmed-Graz, Graz, Austria
| | - Romuald Bellmann
- Clinical Pharmacokinetics Unit, Division of Intensive Care and Emergency Medicine, Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
| | - Robert Krause
- Division of Infectious Diseases, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Biotechmed-Graz, Graz, Austria
| | - Johannes Boyer
- Division of Infectious Diseases, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Daniela Jakšić
- Department of Microbiology, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Martin Hoenigl
- Division of Infectious Diseases, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Biotechmed-Graz, Graz, Austria
- Clinical and Translational Fungal-Working Group, University of California San Diego, San Diego, CA, USA
- Translational Medical Mycology Research Unit, ECMM Excellence Center for Medical Mycology, Medical University of Graz, Graz, Austria
- Correspondence: Martin Hoenigl, Division of Infectious Diseases, Department of Internal Medicine, Medical University of Graz, Auenbruggerplatz 15, Graz, 8036, Austria, Tel +43 31638531425, Email
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Marx R, Lee J, Svirkin Y, Yoon S, Landrau N, Abul Kaisar M, Qin B, Park JH, Alam K, Kozak D, Wang Y, Xu X, Zheng J, Rivnay B. Physicochemical surrogates for in vitro toxicity assessment of liposomal amphotericin B. Int J Pharm 2022; 628:122273. [DOI: 10.1016/j.ijpharm.2022.122273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/28/2022] [Accepted: 10/03/2022] [Indexed: 11/30/2022]
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Svirkin Y, Lee J, Marx R, Yoon S, Landrau N, Kaisar MA, Qin B, Park JH, Alam K, Kozak D, Wang Y, Xu X, Zheng J, Rivnay B. Amphotericin B release rate is the link between drug status in the liposomal bilayer and toxicity. Asian J Pharm Sci 2022; 17:544-556. [PMID: 36105314 PMCID: PMC9459057 DOI: 10.1016/j.ajps.2022.04.007] [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: 01/12/2022] [Revised: 03/26/2022] [Accepted: 04/13/2022] [Indexed: 11/25/2022] Open
Abstract
Amphotericin B (AmB) is an amphiphilic drug commonly formulated in liposomes and administered intravenously to treat systemic fungal infections. Recent studies on the liposomal drug product have shed light on the AmB aggregation status in the bilayer, which heat treatment (curing) modifies. Although toxicity was found related to aggregation status - loose aggregates significantly more toxic than tight aggregates - the precise mechanism linking aggregation and toxicity was not well understood. This study directly measured drug release rate from various AmB liposomal preparations made with modified curing protocols to evaluate correlations among drug aggregation state, drug release, and in vitro toxicity. UV–Vis spectroscopy of these products detected unique curing-induced changes in the UV spectral features: a ∼25 nm blue-shift of the main absorption peak (λmax) in aqueous buffer and a decrease in the OD346/OD322 ratio upon thermal curing, reflecting tighter aggregation. In vitro release testing (IVRT) data showed, by applying and fitting first-order release kinetic models for one or two pools, that curing impacts two significant changes: a 3–5-fold drop in the overall drug release rate and a ten-fold decrease in the ratio between the loosely aggregated and the tightly aggregated, more thermodynamically stable drug pool. The kinetic data thus corroborated the trend independently deduced from the UV–Vis spectral data. The in vitro toxicity assay indicated a decreased toxicity with curing, as shown by the significantly increased concentration, causing half-maximal potassium release (TC50). The data suggest that the release of AmB requires dissociation of the tight complexes within the bilayer and that the reduced toxicity relates to this slower rate of dissociation. This study demonstrates the relationship between AmB aggregation status within the lipid bilayer and drug release (directly measured rate constants), providing a mechanistic link between aggregation status and in vitro toxicity in the liposomal formulations.
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8
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Maw PD, Pienpinijtham P, Pruksakorn P, Jansook P. Cyclodextrin-based Pickering nanoemulsions containing amphotericin B: Part II. Formulation, antifungal activity, and chemical stability. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Influence of Potassium Ions on Act of Amphotericin B to the DPPC/Chol Mixed Monolayer at Different Surface Pressures. MEMBRANES 2022; 12:membranes12010084. [PMID: 35054610 PMCID: PMC8778265 DOI: 10.3390/membranes12010084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 11/30/2022]
Abstract
Amphotericin B (AmB) is an antifungal drug that rarely develops resistance. It has an affinity with the cholesterol on mammalian cell membranes, disrupting the structure and function of the membranes, which are also affected by potassium ions. However, the mechanism is unclear. In this paper, the Langmuir monolayer method was used to study the effects of potassium ions on the surface pressure–mean molecular area of isotherms, elastic modulus and the surface pressure–time curves of a 1,2-dipalmitoyl-sn-glycero-3-phosphocholine/cholesterol (DPPC/Chol) monolayer and a DPPC/Chol/AmB monolayer. The morphology and thickness of the Langmuir–Blodgett films were studied via atomic force microscopy. The results showed that AmB can increase the mean molecular area of the DPPC/Chol mixed monolayer at low pressures (15 mN/m) but reduces it at high pressures (30 mN/m). The potassium ions may interfere with the effect of AmB in different ways. The potassium ions can enhance the influence of AmB on the stability of monolayer at low surface pressures, but weaken it at high surface pressures. The potassium ions showed significant interference with the interaction between AmB and the cholesterol-enriched region. The results are helpful for us to understand how the effect of amphotericin B on the phospholipid membrane is interfered with by potassium ions when amphotericin B enters mammalian cell membrane.
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Martín-Escolano R, Yiangou L, Kazana E, Robinson GK, Michaelis M, Tsaousis AD. Repurposing in vitro approaches for screening anti-parasitic drugs against the brain-eating amoeba Naegleria fowleri. Int J Parasitol Drugs Drug Resist 2021; 17:204-212. [PMID: 34875573 PMCID: PMC8652063 DOI: 10.1016/j.ijpddr.2021.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 11/22/2022]
Abstract
Naegleria fowleri is both a pathogenic and a free-living microbial eukaryote, responsible for the development of primary amoebic meningoencephalitis (PAM) in humans. PAM is a rapid, severe and fatal underestimated infectious disease, which has been reported in countries with warmer climates. The major drawbacks with PAM are the lack of effective therapies and delay in diagnosis. The current frontline treatment presents a low rate of recovery (5%) and severe adverse effects. For example, many drug candidates lack efficacy, since they do not effectively cross the blood-brain-barrier. Consequently, more effective drugs are urgently needed. Herein, we report a new in vitro method suitable for medium- and high-throughput drug discovery assays, using the closely related Naegleria gruberi as a model. We have subsequently used this method to screen a library of 1175 Food and Drug Administration-approved drugs. As a result, we present three drugs (camptothecin, pyrimethamine, and terbinafine) that can be repurposed, and are anticipated to readily cross the blood-brain-barrier with activity against Naegleria species in therapeutically achievable concentrations. Successively, we integrated several in vitro assays that resulted in identifying fast-acting and high amoebicidal drugs. In conclusion, we present a new approach for the identification of anti-Naegleria drugs along with three potential drug candidates for further development for the treatment of PAM.
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Affiliation(s)
- Rubén Martín-Escolano
- Laboratory of Molecular & Evolutionary Parasitology, RAPID Group, School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK
| | - Lyto Yiangou
- Laboratory of Molecular & Evolutionary Parasitology, RAPID Group, School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK; School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK
| | - Eleanna Kazana
- Laboratory of Molecular & Evolutionary Parasitology, RAPID Group, School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK
| | - Gary K Robinson
- School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK
| | - Martin Michaelis
- School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK.
| | - Anastasios D Tsaousis
- Laboratory of Molecular & Evolutionary Parasitology, RAPID Group, School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK; School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK.
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Azanza Perea JR. [Liposomal amphotericin B: Clinical pharmacology, pharmacokinetics and pharmacodynamics]. Rev Iberoam Micol 2021; 38:52-55. [PMID: 33992527 DOI: 10.1016/j.riam.2021.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 02/16/2021] [Indexed: 11/19/2022] Open
Abstract
Liposomal amphotericin B is a lipid formulation of the antifungal drug amphotericin B with some distinguishing characteristics in its pharmacological behavior that entail some clinical differences of great interest. The significant improvement in the systemic and renal tolerability is one of them. This fact is related to the great stability of the liposome, promoted by its negative charge, the presence of cholesterol and the remarkable thermo-stability of the remaining lipids that compose it. In this situation, amphotericin B seems to be released from the liposome not spontaneously but when the liposome binds to the ergosterol in the fungal cell membrane. For this reason, there is almost no free amphotericin B in plasma or tissues, although it seems that its availability is greater when there is fungal infection. As a consequence, when the pharmacokinetic behavior is studied, the concentration and availability of liposomal amphotericin B are very high, and its volume of distribution is reduced in comparison with the other formulations.
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Affiliation(s)
- José Ramón Azanza Perea
- Servicio de Farmacología Clínica, Clínica Universidad de Navarra, Pamplona, Navarra, España.
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12
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Horvat S, Yu Y, Manz H, Keller T, Beilhack A, Groll J, Albrecht K. Nanogels as Antifungal‐Drug Delivery System Against
Aspergillus Fumigatus. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202000060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Sonja Horvat
- Department for functional materials in medicine and dentistry and Bavarian Polymer Institute University of Würzburg Pleicherwall 2 D-97070 Würzburg Germany
| | - Yidong Yu
- Department for functional materials in medicine and dentistry and Bavarian Polymer Institute University of Würzburg Pleicherwall 2 D-97070 Würzburg Germany
| | - Hannah Manz
- Department of Medicine II Center for Experimental Molecular Medicine Würzburg University Hospital 97080 Würzburg Germany
| | - Thorsten Keller
- Department for functional materials in medicine and dentistry and Bavarian Polymer Institute University of Würzburg Pleicherwall 2 D-97070 Würzburg Germany
| | - Andreas Beilhack
- Department of Medicine II Center for Experimental Molecular Medicine Würzburg University Hospital 97080 Würzburg Germany
| | - Jürgen Groll
- Department for functional materials in medicine and dentistry and Bavarian Polymer Institute University of Würzburg Pleicherwall 2 D-97070 Würzburg Germany
| | - Krystyna Albrecht
- Department for functional materials in medicine and dentistry and Bavarian Polymer Institute University of Würzburg Pleicherwall 2 D-97070 Würzburg Germany
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Sixty years of Amphotericin B: An Overview of the Main Antifungal Agent Used to Treat Invasive Fungal Infections. Infect Dis Ther 2021; 10:115-147. [PMID: 33523419 PMCID: PMC7954977 DOI: 10.1007/s40121-020-00382-7] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/04/2020] [Indexed: 12/29/2022] Open
Abstract
Introduced in the late 1950s, polyenes represent the oldest family of antifungal drugs. The discovery of amphotericin B and its therapeutic uses is considered one of the most important scientific milestones of the twentieth century . Despite its toxic potential, it remains useful in the treatment of invasive fungal diseases owing to its broad spectrum of activity, low resistance rate, and excellent clinical and pharmacological action. The well-reported and defined toxicity of the conventional drug has meant that much attention has been paid to the development of new products that could minimize this effect. As a result, lipid-based formulations of amphotericin B have emerged and, even keeping the active principle in common, present distinct characteristics that may influence therapeutic results. This study presents an overview of the pharmacological properties of the different formulations for systemic use of amphotericin B available for the treatment of invasive fungal infections, highlighting the characteristics related to their chemical, pharmacokinetic structures, drug–target interactions, stability, and others, and points out the most relevant aspects for clinical practice.
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Shakdofa MM, Morsy NA, Rasras AJ, Al‐Hakimi AN, Shakdofa AM. Synthesis, characterization, and density functional theory studies of hydrazone–oxime ligand derived from 2,4,6‐trichlorophenyl hydrazine and its metal complexes searching for new antimicrobial drugs. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6111] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Mohamad M.E. Shakdofa
- Department of Chemistry, College of Science and Arts at Khulais University of Jeddah Jeddah Saudi Arabia
| | - Nagy A. Morsy
- Department of Biochemistry, College of Science University of Jeddah Jeddah Saudi Arabia
| | - Anas J. Rasras
- Department of Chemistry, Faculty of Science Al‐Balqa Applied University Al‐Salt 19117 Jordan
| | - Ahmed N. Al‐Hakimi
- Department of Chemistry, College of Science Qassim University Buraidah Saudi Arabia
- Department of Chemistry, Faculty of Science Ibb University Ibb Yemen
| | - Adel M.E. Shakdofa
- Department of Chemistry, Faculty of Science Menoufia University Shebin El‐Kom Egypt
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Camargo PG, Bortoleti BTDS, Fabris M, Gonçalves MD, Tomiotto-Pellissier F, Costa IN, Conchon-Costa I, Lima CHDS, Pavanelli WR, Bispo MDLF, Macedo F. Thiohydantoins as anti-leishmanial agents: n vitro biological evaluation and multi-target investigation by molecular docking studies. J Biomol Struct Dyn 2020; 40:3213-3222. [PMID: 33183184 DOI: 10.1080/07391102.2020.1845979] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Leishmaniasis is a neglected tropical disease caused by protozoa of the genus Leishmania. The first-line treatment of this disease is still based on pentavalent antimonial drugs that have a high toxicity profile, which could induce parasitic resistance. Therefore, there is a critical need to discover more effective and selective novel anti-leishmanial agents. In this context, thiohydantoins are a versatile class of substances due to their simple synthesis and several biological activities. In this work, thiohydantoins 1a-l were evaluated in vitro for antileishmania activity. Among them, four derivatives (1c, 1e, 1h and 1l) showed promising IC50 values around 10 µM against promastigotes forms of Leishmania amazonensis and low cytotoxicity profile for peritoneal macrophages cells. Besides, these compounds induce oxidative stress through an increase in ROS production and the labeling of annexin-V and propidium iodide, indicating that promastigotes were undergoing a late apoptosis-like process. Additionally, molecular consensual docking analysis was carried out against two important targets to L. amazonensis: arginase and trypanothione reductase enzymes. Docking results suggest that thiohydantoin ring could be a pharmacophoric group due to its binding affinity by hydrogens bond interactions with important amino acid residues at the active site of both enzymes. These results demonstrate that compounds 1c, 1e, 1h and 1l may are promising in future advance studies.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Priscila Goes Camargo
- Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, Londrina, Brazil
| | | | - Marcieli Fabris
- Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, Londrina, Brazil
| | - Manoela Daiele Gonçalves
- Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, Londrina, Brazil
| | | | - Idessania Nazareth Costa
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| | - Ivete Conchon-Costa
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| | | | - Wander Rogério Pavanelli
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| | | | - Fernando Macedo
- Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, Londrina, Brazil
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16
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Díaz de León-Ortega R, D'Arcy DM, Lamprou DA, Xue WF, Fotaki N. In vitro in vivo relations for the parenteral liposomal formulation of Amphotericin B: A biorelevant and clinically relevant approach. Eur J Pharm Biopharm 2020; 159:188-197. [PMID: 32717384 DOI: 10.1016/j.ejpb.2020.07.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 06/04/2020] [Accepted: 07/22/2020] [Indexed: 01/31/2023]
Abstract
There is limited information on how to perform in vitro release tests for intravenously administered parenteral formulations and how to relate the in vitro release with an in vivo pharmacokinetic parameter after the administration of the formulation. In this study, the effect of hydrodynamics (using sample and separate and continuous flow conditions) and medium components (synthetic surfactants, albumin and buffers) on the release of Amphotericin B from the liposomal Ambisome® formulation were investigated. Pharmacokinetic modeling of plasma concentration profiles from healthy subjects administered Ambisome® was used to estimate the in vivo release rate constant of drug from the formulation in order to compare it with the in vitro release profiles. With the estimated in vivo and in vitro release rate constants, release profiles were generated. Two approaches were followed: comparison of in vivo and in vitro release rate constants and comparison of the area under the percent release-time curve from observed in vitro release data and simulated in vivo release data. Albumin was found to be most critical factor for the release of the drug by having a negative effect on the amount of Amphotericin B released. The release profiles obtained with the sample and separate method in both Krebs Ringer buffer- and Phosphate Saline buffer - albumin 4.0% w/v were predictive of the in vivo release profiles in healthy subjects. Determining the factors affecting drug release from parenteral formulations and relating the release profiles to a pharmacokinetic parameter in vivo supports the development of in vitro in vivo relations for parenteral products.
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Affiliation(s)
| | - D M D'Arcy
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin 2, Ireland
| | - D A Lamprou
- School of Pharmacy, Queen's University Belfast, Belfast, United Kingdom
| | - W F Xue
- School of Biosciences, University of Kent, Canterbury, United Kingdom
| | - N Fotaki
- Department of Pharmacy and Pharmacology, University of Bath, Bath, United Kingdom.
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Adler-Moore J, Lewis RE, Brüggemann RJM, Rijnders BJA, Groll AH, Walsh TJ. Preclinical Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Antifungal Activity of Liposomal Amphotericin B. Clin Infect Dis 2020; 68:S244-S259. [PMID: 31222254 PMCID: PMC6495008 DOI: 10.1093/cid/ciz064] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The improved safety profile and antifungal efficacy of liposomal amphotericin B (LAmB) compared to conventional amphotericin B deoxycholate (DAmB) is due to several factors including, its chemical composition, rigorous manufacturing standards, and ability to target and transit through the fungal cell wall. Numerous preclinical studies have shown that LAmB administered intravenously distributes to tissues frequently infected by fungi at levels above the minimum inhibitory concentration (MIC) for many fungi. These concentrations can be maintained from one day to a few weeks, depending upon the tissue. Tissue accumulation is dose-dependent with drug clearance occurring most rapidly from the brain and slowest from the liver and spleen. LAmB localizes in lung epithelial lining fluid, within liver and splenic macrophages and in kidney distal tubules. LAmB has been used successfully in therapeutic and prophylactic animal models to treat many different fungal pathogens, significantly increasing survival and reducing tissue fungal burden.
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Affiliation(s)
- Jill Adler-Moore
- Department of Biological Sciences, California State Polytechnic University, Pomona
| | - Russell E Lewis
- Unit of Infectious Diseases, Policlinico Sant'Orsola-Malpighi, Department of Medical Sciences and Surgery, University of Bologna, Italy
| | - Roger J M Brüggemann
- Department of Pharmacy, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Bart J A Rijnders
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Andreas H Groll
- Infectious Disease Research Program, Department of Pediatric Hematology and Oncology and Center for Bone Marrow Transplantation, University Children's Hospital Muenster, Germany
| | - Thomas J Walsh
- Departments of Medicine, Pediatrics, and Microbiology & Immunology, Weill Cornell Medicine of Cornell University, New York, New York
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18
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Kaneo Y. [Nanoparticle Formation and Delivery of Poorly Water-soluble Drugs by Hydrophobized Polymers]. YAKUGAKU ZASSHI 2020; 140:555-567. [PMID: 32238638 DOI: 10.1248/yakushi.19-00248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
When a hydrophobic group is introduced into a water-soluble polymer, self-assembly with the hydrophobic group as nucleus occurs in water. In the 1990s, many researchers focused on this phenomenon and various self-aggregates were prepared. Among them, a block copolymer consisting of a hydrophilic chain and a hydrophobic chain is associated in water, producing polymer micelles with the hydrophilic chain oriented in the outer shell and the hydrophobic chain as core. Meanwhile, many studies were conducted to create polymer self-associates by introducing hydrophobic groups into water-soluble polymers. In this review, the author describes hydrophobized polymers with polysaccharides and synthetic polymers that are frequently used as pharmaceutical raw materials. In addition are outlined the usefulness of hydrophobized polymers as carriers with the function of encapsulating and solubilizing poorly water-soluble drugs, along with the results of our research.
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Affiliation(s)
- Yoshiharu Kaneo
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
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19
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Development of dextrin-amphotericin B formulations for the treatment of Leishmaniasis. Int J Biol Macromol 2020; 153:276-288. [PMID: 32145228 DOI: 10.1016/j.ijbiomac.2020.03.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/01/2020] [Accepted: 03/03/2020] [Indexed: 11/23/2022]
Abstract
The most effective medicines available for the treatment of leishmaniasis, a life-threatening disease, exhibit serious toxicological issues. To achieve better therapeutic efficiency while decreasing toxicity associated with amphotericin B (AmB), water-soluble dextrin-AmB (Dex-AmB) formulations were developed. Self-assembled nanocomplexes were formed by dissolving Dex and AmB in alkaline borate buffer, followed by dialysis and either freeze-drying (FD) or nano spray-drying (SD), yielding water dispersible particles with a diameter of 214 nm and 347 nm, respectively. The very simple production process allowed the formation of amorphous inclusion complexes containing 14% of AmB in the form of monomers and water-soluble aggregates. Nanocomplexes were effective against parasites in axenic culture (IC50 of 0.056 and 0.096 μM for L. amazonensis and 0.030 and 0.044 μM for L. infantum, respectively for Dex-AmB FD and Dex-AmB SD) and in decreasing the intramacrophagic infection with L. infantum (IC50 of 0.017 and 0.023 μM, respectively for Dex-AmB FD and Dex-AmB SD). Also, the formulations were able to significantly reduce the cytotoxicity of AmB. Overall, this study demonstrates the suitability of dextrin as an AmB carrier and the facile and inexpensive development of a delivery system for the treatment of leishmaniasis.
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Goswami P, Ghiya BC, Kumar V, Rekha S, Mehta RD. Comparison of Efficacy of Two Different Concentrations of Intralesional Amphotericin B in the Treatment of Cutaneous Leishmaniasis; A Randomized Controlled Trial. Indian Dermatol Online J 2019; 10:627-631. [PMID: 31807440 PMCID: PMC6859770 DOI: 10.4103/idoj.idoj_470_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Introduction: Cutaneous leishmaniasis is a vector borne disease caused by Leishmania major and Leishmania tropica. Bikaner is an endemic pocket for cutaneous leishmaniasis caused by Leishmania tropica. Materials and Methods: A prospective study was done to evaluate the efficacy of different concentrations of intralesional amphotericin B as a treatment modality for cutaneous leishmaniasis in Bikaner, Rajasthan, India from January 2016 to June 2017. Fifty patients were randomized into two groups, A and B. Twenty-five patients from group A, received intralesionl amphotericin B (2.5 mg/ml) 0.5 ml/cm2, weekly for 8 weeks. Another group of 25 patients were treated by intralesional amphotericin B (5.0 mg/ml) weekly for same period. The cases were followed-up for response, side effects, and recurrence of disease. Results: The results at the end of 8 weeks, showed complete response in 18 (72%) patients, partial response in 5 (20%) and 2 (8%) patients were non responders in group A. In group B, complete response was observed in 14 (56%), partial response in 7 (28%) patients and 4 (16%) patients did not show response. The difference was statistically insignificant (P > 0.05). No side effects were observed in both groups. Conclusion: The difference between the efficacy of 5 mg/ml and 2.5 mg/ml concentrations of Amphotericin B injections was found to be statistically insignificant. So, weekly injections of amphotericin B looks promising, however, larger sample size is required to assess the efficacy of both concentrations in the treatment of cutaneous leishmaniasis.
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Affiliation(s)
- Pooja Goswami
- Department of Dermatology, Venereology and Leprosy, Sardar Patel Medical College, Bikaner, Rajasthan, India
| | - B C Ghiya
- Department of Dermatology, Venereology and Leprosy, Sardar Patel Medical College, Bikaner, Rajasthan, India
| | - Vineet Kumar
- Department of Dermatology, Venereology and Leprosy, Sardar Patel Medical College, Bikaner, Rajasthan, India
| | - S Rekha
- Department of Dermatology, Venereology and Leprosy, Sardar Patel Medical College, Bikaner, Rajasthan, India
| | - R D Mehta
- Department of Dermatology, Venereology and Leprosy, Sardar Patel Medical College, Bikaner, Rajasthan, India
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21
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Lu X, Zhu W, Chen T, Peng Q, Yu C, Yang M. Exploration of photophysical and photochemical properties of Zinc phthalocyanine-loaded SDC/TPGS mixed micelles. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.136737] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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22
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Lanza JS, Pomel S, Loiseau PM, Frézard F. Recent advances in amphotericin B delivery strategies for the treatment of leishmaniases. Expert Opin Drug Deliv 2019; 16:1063-1079. [DOI: 10.1080/17425247.2019.1659243] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Juliane S. Lanza
- Faculty of Pharmacy, Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, University Paris-Saclay, Chatenay-Malabry, France
| | - Sébastien Pomel
- Faculty of Pharmacy, Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, University Paris-Saclay, Chatenay-Malabry, France
| | - Philippe M. Loiseau
- Faculty of Pharmacy, Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, University Paris-Saclay, Chatenay-Malabry, France
| | - Frédéric Frézard
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
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23
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Schwarz P, Cornely OA, Dannaoui E. Antifungal combinations in Mucorales: A microbiological perspective. Mycoses 2019; 62:746-760. [PMID: 30830980 DOI: 10.1111/myc.12909] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 02/27/2019] [Accepted: 02/28/2019] [Indexed: 12/24/2022]
Abstract
Mucormycosis mostly affects immunocompromised patients and is associated with a high morbidity and mortality despite currently available treatments. In that context, combination therapy might be the key to a better outcome for these patients. Purpose of this review is to summarise and to discuss the current combination data obtained in vitro, in vivo in animal models of mucormycosis, and in patients. In vitro combination studies showed that most of the interactions between antifungal drugs were indifferent, even though that some synergistic interactions were achieved for the combination of echinocandins with either azoles or amphotericin B. Importantly, antagonism was never observed. Animal models of mucormycosis focused on infections caused by Rhizopus arrhizus, neglecting most other species responsible for human disease. In these experimental animal models, no strong interactions have been demonstrated, although a certain degree of synergism has been reported in some instances. Combinations of antifungals with non-antifungal drugs have also been largely explored in vitro and in animal models and yielded interesting results. In patients with ketoacidosis and rhino-orbito-cerebral infection, combination of polyene with caspofungin was effective. In contrast, despite promising experimental data, adjunctive therapy with the iron chelator deferasirox was unfavourable and was associated with a higher mortality than monotherapy with liposomal amphotericin B. More combinations have to be tested in vitro and a much larger panel of Mucorales species has to be tested in vivo to give a valuable statement if antifungal combination therapy could be an effective treatment strategy in patients with mucormycosis.
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Affiliation(s)
- Patrick Schwarz
- Department of Internal Medicine, Respiratory and Critical Care Medicine, University Hospital Marburg, Marburg, Germany.,Center for Invasive Mycoses and Antifungals, Philipps University Marburg, Marburg, Germany
| | - Oliver A Cornely
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), ZKS Köln, University of Cologne, Cologne, Germany.,Department I of Internal Medicine, University Hospital Cologne, Cologne, Germany
| | - Eric Dannaoui
- Université Paris Descartes, Faculté de Médecine, AP-HP, Hôpital Européen Georges Pompidou, Unité de Parasitologie-Mycologie, Paris, France.,Dynamyc Research Group (EA 7380), Paris Est Créteil University, Créteil, France
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24
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Voak AA, Standing JF, Sepúlveda N, Harris A, Croft SL, Seifert K. Pharmacodynamics and cellular accumulation of amphotericin B and miltefosine in Leishmania donovani-infected primary macrophages. J Antimicrob Chemother 2019; 73:1314-1323. [PMID: 29506127 PMCID: PMC5909632 DOI: 10.1093/jac/dky014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/02/2018] [Indexed: 12/13/2022] Open
Abstract
Objectives We examined the in vitro pharmacodynamics and cellular accumulation of the standard anti-leishmanial drugs amphotericin B and miltefosine in intracellular Leishmania donovani amastigote-macrophage drug assays. Methods Primary mouse macrophages were infected with L. donovani amastigotes. In time-kill assays infected macrophages were exposed to at least six different concentrations of serially diluted drugs and the percentage of infected macrophages was determined after 6, 12, 24, 48, 72 and 120 h of exposure. Cellular drug accumulation was measured following exposure to highly effective drug concentrations for 1, 6, 24, 48 and 72 h. Data were analysed through a mathematical model, relating drug concentration to the percentage of infected cells over time. Host cell membrane damage was evaluated through measurement of lactate dehydrogenase release. The effect of varying the serum and albumin concentrations in medium on the cellular accumulation levels of miltefosine was measured. Results Amphotericin B was more potent than miltefosine (EC50 values of 0.65 and 1.26 μM, respectively) and displayed a wider therapeutic window in vitro. The kinetics of the cellular accumulation of amphotericin B was concentration- and formulation-dependent. At an extracellular concentration of 10 μM miltefosine maximum cellular drug levels preceded maximum anti-leishmanial kill. Miltefosine induced membrane damage in a concentration-, time- and serum-dependent manner. Its cellular accumulation levels increased with decreasing amounts of protein in assay medium. Conclusions We have developed a novel approach to investigate the cellular pharmacology of anti-leishmanial drugs that serves as a model for the characterization of new drug candidates.
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Affiliation(s)
- Andrew A Voak
- Faculty of Infectious and Tropical Diseases, Department of Immunology and Infection, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK
| | - Joseph F Standing
- Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, UK
| | - Nuno Sepúlveda
- Faculty of Infectious and Tropical Diseases, Department of Immunology and Infection, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK.,Centre for Statistics and Applications of University of Lisbon, Lisbon, Portugal
| | - Andy Harris
- Pharmidex, 3rd Floor, 14 Hanover Street, London W1S 1YH, UK
| | - Simon L Croft
- Faculty of Infectious and Tropical Diseases, Department of Immunology and Infection, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK
| | - Karin Seifert
- Faculty of Infectious and Tropical Diseases, Department of Immunology and Infection, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK
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Ishida K, Castro RA, Torrado JJ, Serrano DR, Borba-Santos LP, Quintella LP, de Souza W, Rozental S, Lopes-Bezerra LM. Efficacy of a poly-aggregated formulation of amphotericin B in treating systemic sporotrichosis caused by Sporothrix brasiliensis. Med Mycol 2019; 56:288-296. [PMID: 28575449 DOI: 10.1093/mmy/myx040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 05/23/2017] [Indexed: 12/25/2022] Open
Abstract
In severe cases of sporotrichosis, it is recommended to use amphotericin B deoxycholate (D-AMB) or its lipid formulations and/or in association with itraconazole (ITC). Our aim was to evaluate the antifungal efficacy of a poly-aggregated amphotericin B (P-AMB), a nonlipid formulation, compared with D-AMB on systemic sporotrichosis caused by Sporothrix brasiliensis. In vitro assays showed that Sporothrix schenckii sensu stricto and S. brasiliensis yeast clinical isolates were susceptible to low concentrations of P-AMB and D-AMB. Although P-AMB presented a higher minimal inhibitory concentration (MIC) compared to D-AMB, its cytotoxic effect on renal cells and erythrocytes was lower. For the in vivo assays, male BALB/c mice were intravenously infected with S. brasiliensis yeasts, and P-AMB or D-AMB was administered 3 days post-infection. The efficacy of five therapeutic regimens was tested: intravenous monotherapy with P-AMB or D-AMB, intravenous pulsed-therapy with P-AMB or D-AMB, and intravenous therapy with P-AMB, followed by oral ITC. These treatments increased murine survival and controlled the fungal burden in the liver, spleen, lungs, and kidneys. However, only D-AMB monotherapy or the pulsed-therapies with D-AMB or P-AMB led to 100% survival of the mice 45 days post-infection; only pulsed administration of D-AMB was able to control the fungal load in all organs 45 days post-infection. Accordingly, the histopathological findings showed reductions in the fungal burden and inflammatory reactions in these treatment regimens. Together, our results suggest that the P-AMB formulation could be considered as an alternative drug to D-AMB for treating disseminated sporotrichosis.
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Affiliation(s)
- Kelly Ishida
- Laboratory of Antifungal Chemotherapy, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Rafaela Alves Castro
- Laboratory of Cellular Mycology and Proteomics, Department of Cell Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Juan J Torrado
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Complutense University, Madrid, Spain
| | - Dolores Remedios Serrano
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Complutense University, Madrid, Spain
| | - Luana Pereira Borba-Santos
- Laboratory of Fungal Cell Biology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Wanderley de Souza
- Laboratory of Cellular Ultrastructure Hertha Meyer, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sonia Rozental
- Laboratory of Fungal Cell Biology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leila M Lopes-Bezerra
- Laboratory of Cellular Mycology and Proteomics, Department of Cell Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
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26
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Groll AH, Rijnders BJA, Walsh TJ, Adler-Moore J, Lewis RE, Brüggemann RJM. Clinical Pharmacokinetics, Pharmacodynamics, Safety and Efficacy of Liposomal Amphotericin B. Clin Infect Dis 2019; 68:S260-S274. [PMID: 31222253 PMCID: PMC6495018 DOI: 10.1093/cid/ciz076] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Since its introduction in the 1990s, liposomal amphotericin B (LAmB) continues to be an important agent for the treatment of invasive fungal diseases caused by a wide variety of yeasts and molds. This liposomal formulation was developed to improve the tolerability of intravenous amphotericin B, while optimizing its clinical efficacy. Since then, numerous clinical studies have been conducted, collecting a comprehensive body of evidence on its efficacy, safety, and tolerability in the preclinical and clinical setting. Nevertheless, insights into the pharmacokinetics and pharmacodynamics of LAmB continue to evolve and can be utilized to develop strategies that optimize efficacy while maintaining the compound's safety. In this article, we review the clinical pharmacokinetics, pharmacodynamics, safety, and efficacy of LAmB in a wide variety of patient populations and in different indications, and provide an assessment of areas with a need for further clinical research.
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Affiliation(s)
- Andreas H Groll
- Infectious Disease Research Program, Department of Pediatric Hematology and Oncology and Center for Bone Marrow Transplantation, University Children’s Hospital Muenster, Germany
| | - Bart J A Rijnders
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Thomas J Walsh
- Departments of Medicine, Pediatrics, and Microbiology & Immunology, Weill Cornell Medicine of Cornell University, New York, New York
| | - Jill Adler-Moore
- Department of Biological Sciences, California State Polytechnic University, Pomona
| | - Russell E Lewis
- Unit of Infectious Diseases, Policlinico Sant’Orsola-Malpighi, Department of Medical Sciences and Surgery, University of Bologna, Italy
| | - Roger J M Brüggemann
- Department of Pharmacy, Radboud University Medical Centre, Nijmegen, The Netherlands
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27
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Effect of amphotericin B and voriconazole on the outgrowth of conidia of Aspergillus fumigatus followed by time-lapse microscopy. AMB Express 2019; 9:43. [PMID: 30945013 PMCID: PMC6447639 DOI: 10.1186/s13568-019-0769-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 03/25/2019] [Indexed: 01/09/2023] Open
Abstract
Studies of morphological measurements from the outgrowth of cells to a network of hyphae have been extended from Candida albicans (Nagy et al. in Appl Microbiol Biotechnol 98(11):5185-5194. https://doi.org/10.1007/s00253-014-5696-5 , 2014) to invasive conidiospores of Aspergillus fumigatus upon treatment with antifungal agents. The understanding of mycelial processes is important to optimize industrial processes such as fermentation and contributes to the fight against pathogenic fungi. This brief study combines TLS with digital image analysis. The TLS system was adapted to get information related to the adherence and growth dynamics of filamentous fungi. This approach was used earlier to distinguish among subphases of bacterial and fungal infections of mammal cells by detecting Mycoplasma infection in cell cultures causing serious damages in cell cultures. We describe changes in adherence, germination of spores, and hyphal growth of A. fumigatus, taking place in the absence and presence of amphotericin B (AMB) and voriconazole (VRC). These growth parameters were measured by TLS in CO2 incubator under physiological Photomicrography by TLS and extended for a longer period of time up to several weeks combined with image analysis represents a comfortable and reliable means to characterize the growth dynamism of A. fumigatus. The most important observation of medical importance related to the pathomechanism of VRC was that it did not adhere to conidiospores, i.e. that it did not contribute to the attachment of spores to the growth surface, and did not prevent germination but delayed hypha protrusion and elongation. In contrast AMB adhered to conidia, inhibited germination, hypha elongation and branching. It was concluded that AMB was efficient against the therapy of growth but not against the prevention of fungal infection.
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Du Y, Gao J, Zhou L, Ma L, He Y, Zheng X, Huang Z, Jiang Y. MOF-Based Nanotubes to Hollow Nanospheres through Protein-Induced Soft-Templating Pathways. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1801684. [PMID: 30937262 PMCID: PMC6425429 DOI: 10.1002/advs.201801684] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/06/2018] [Indexed: 06/09/2023]
Abstract
A controllable and facile strategy is established for constructing metal-organic frameworks-based (MOF-based) hollow composites via a protein-induced soft-templating pathway. Using metal-sodium deoxycholate hydrogel as soft-template, nanotubes are gained while the protein is absent. With the presence of protein, hollow nanospheres structure are prepared by changing the amount of protein. To verify the universality of the proposed pathway, two kinds of proteins (Burkholderia cepacia lipase and penicillin G acylase) and three kinds of MOF (ZIF-8, ZIF-67, and Fe-MOF) are adopted as model proteins and materials, and the obtained protein-containing composites (named protein@H-MOF) possess high bioactivity and stability. This proposed strategy provides a facile method for preparing MOF-based composites under mild conditions, facilitating the applications of MOF in the fields of biocatalyst construction, biomolecule encapsulation, and drug delivery.
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Affiliation(s)
- Yingjie Du
- School of Chemical EngineeringHebei University of TechnologyNo. 8 Guangrong RoadHongqiao DistrictTianjin300130China
| | - Jing Gao
- School of Chemical EngineeringHebei University of TechnologyNo. 8 Guangrong RoadHongqiao DistrictTianjin300130China
| | - Liya Zhou
- School of Chemical EngineeringHebei University of TechnologyNo. 8 Guangrong RoadHongqiao DistrictTianjin300130China
| | - Li Ma
- School of Chemical EngineeringHebei University of TechnologyNo. 8 Guangrong RoadHongqiao DistrictTianjin300130China
| | - Ying He
- School of Chemical EngineeringHebei University of TechnologyNo. 8 Guangrong RoadHongqiao DistrictTianjin300130China
| | - Xuefang Zheng
- School of Chemical EngineeringHebei University of TechnologyNo. 8 Guangrong RoadHongqiao DistrictTianjin300130China
| | - Zhihong Huang
- School of Chemical EngineeringHebei University of TechnologyNo. 8 Guangrong RoadHongqiao DistrictTianjin300130China
| | - Yanjun Jiang
- School of Chemical EngineeringHebei University of TechnologyNo. 8 Guangrong RoadHongqiao DistrictTianjin300130China
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Pre-Existing Liver Disease and Toxicity of Antifungals. J Fungi (Basel) 2018; 4:jof4040133. [PMID: 30544724 PMCID: PMC6309049 DOI: 10.3390/jof4040133] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/05/2018] [Accepted: 12/07/2018] [Indexed: 12/17/2022] Open
Abstract
Pre-existing liver disease in patients with invasive fungal infections further complicates their management. Altered pharmacokinetics and tolerance issues of antifungal drugs are important concerns. Adjustment of the dosage of antifungal agents in these cases can be challenging given that current evidence to guide decision-making is limited. This comprehensive review aims to evaluate the existing evidence related to antifungal treatment in individuals with liver dysfunction. This article also provides suggestions for dosage adjustment of antifungal drugs in patients with varying degrees of hepatic impairment, after accounting for established or emerging pharmacokinetic–pharmacodynamic relationships with regard to antifungal drug efficacy in vivo.
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Local Skin Inflammation in Cutaneous Leishmaniasis as a Source of Variable Pharmacokinetics and Therapeutic Efficacy of Liposomal Amphotericin B. Antimicrob Agents Chemother 2018; 62:AAC.00631-18. [PMID: 30082295 PMCID: PMC6153808 DOI: 10.1128/aac.00631-18] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 08/03/2018] [Indexed: 11/21/2022] Open
Abstract
Disfiguring skin lesions caused by several species of the Leishmania parasite characterize cutaneous leishmaniasis (CL). Successful treatment of CL with intravenous (i.v.) liposomal amphotericin B (LAmB) relies on the presence of adequate antibiotic concentrations at the dermal site of infection within the inflamed skin. Disfiguring skin lesions caused by several species of the Leishmania parasite characterize cutaneous leishmaniasis (CL). Successful treatment of CL with intravenous (i.v.) liposomal amphotericin B (LAmB) relies on the presence of adequate antibiotic concentrations at the dermal site of infection within the inflamed skin. Here, we have investigated the impact of the local skin inflammation on the pharmacokinetics (PK) and efficacy of LAmB in two murine models of localized CL (Leishmania major and Leishmania mexicana) at three different stages of disease (papule, initial nodule, and established nodule). Twenty-four hours after the administration of one 25 mg/kg of body weight LAmB (i.v.) dose to infected BALB/c mice (n = 5), drug accumulation in the skin was found to be dependent on the causative parasite species (L. major > L. mexicana) and the disease stage (papule > initial nodule > established nodule > healthy skin). Elevated tissue drug levels were associated with increased vascular permeability (Evans blue assay) and macrophage infiltration (histomorphometry) in the infected skin, two pathophysiological parameters linked to tissue inflammation. After identical treatment of CL in the two models with 5 × 25 mg/kg LAmB (i.v.), intralesional drug concentrations and reductions in lesion size and parasite load (quantitative PCR [qPCR]) were all ≥2-fold higher for L. major than for L. mexicana. In conclusion, drug penetration of LAmB into CL skin lesions could depend on the disease stage and the causative Leishmania species due to the influence of local tissue inflammation.
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Su C, Yang H, Sun H, Fawcett JP, Sun D, Gu J. Bioanalysis of free and liposomal Amphotericin B in rat plasma using solid phase extraction and protein precipitation followed by LC-MS/MS. J Pharm Biomed Anal 2018; 158:288-293. [DOI: 10.1016/j.jpba.2018.06.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 05/26/2018] [Accepted: 06/07/2018] [Indexed: 02/04/2023]
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Jansook P, Pichayakorn W, Ritthidej GC. Amphotericin B-loaded solid lipid nanoparticles (SLNs) and nanostructured lipid carrier (NLCs): effect of drug loading and biopharmaceutical characterizations. Drug Dev Ind Pharm 2018; 44:1693-1700. [PMID: 29936874 DOI: 10.1080/03639045.2018.1492606] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The aim of this study was to further investigate the effect of drug loading, drug entrapment efficiency, the drug release profiles and biopharmaceutical point of views of amphotericin B (AmB) lipid formulations, that is, degree of aggregation by UV-spectroscopy, in vitro hemolytic and antifungal activities. The optimum drug loading was 2.5% by weight corresponded to lipid fraction in formulation. Increasing of the drug entrapment was achieved by blending small amount of phospholipid in solid lipid nanoparticle (SLN) dispersions. All AmB lipid dispersions were less aggregated species and hemolytic response than Fungizone® indicating that lipid nanoparticles could reduce its toxicity. The sustained release profiles of AmB formulations depended on its aggregated form and entrapment efficiency. Too high AmB loaded (5% w/w) showed a biphasic drug release profile probably due to some amounts of drug deposited on the nanosphere surface including in continuous phase which promptly released. For in vitro antifungal testing, all AmB lipid formulations were equal and more effective than both AmB itself and Fungizone®. These observations suggested that AmB loaded SLNs, nanostructured lipid carriers and modified SLNs by blending lecithin could enhance AmB solubility, prolong release characteristics, reduce toxicity and improve antifungal activity.
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Affiliation(s)
- Phatsawee Jansook
- a Faculty of Pharmaceutical Sciences , Chulalongkorn University , Bangkok, Thailand
| | - Wiwat Pichayakorn
- b Faculty of Pharmaceutical Sciences , Prince of Songkla University , Songkhla, Hat-Yai, Songkhla , Thailand
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Singla P, Singh O, Chabba S, Aswal VK, Mahajan RK. Sodium deoxycholate mediated enhanced solubilization and stability of hydrophobic drug Clozapine in pluronic micelles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 191:143-154. [PMID: 29028506 DOI: 10.1016/j.saa.2017.10.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 10/05/2017] [Accepted: 10/06/2017] [Indexed: 05/04/2023]
Abstract
In this report, the solubilization behaviour of a hydrophobic drug Clozapine (CLZ) in micellar suspensions of pluronics having different hydrophilic lipophilic balance (HLB) ratios viz. P84, F127 and F108 in the absence and presence of bile salt sodium deoxycholate (SDC) has been studied. UV-Vis spectroscopy has been exploited to determine the solubilization capacity of the investigated micellar systems in terms of drug loading efficiency, average number of drug molecules solubilized per micelle (ns), partition coefficient (P) and standard free energy of solubilization (∆G°). The morphological and structural changes taking place in pluronics in different concentration regimes of SDC and with the addition of drug CLZ has been explored using dynamic light scattering (DLS) and small angle neutron scattering (SANS) measurements. The SANS results revealed that aggregation behaviour of pluronic-SDC mixed micelles gets improved in the presence of drug. The micropolarity measurements have been performed to shed light on the locus of solubilization of the drug in pure and mixed micellar systems. The compatibility between CLZ and drug carriers (pluronics and SDC) was confirmed using powder X-ray diffraction (PXRD) and Fourier transform infrared spectroscopy (FTIR) techniques. Among the investigated systems, P84-SDC mixed system was found to be highly efficient for CLZ loading. The long term stability data indicated that CLZ loaded P84-SDC mixed micellar formulation remained stable for 3months at room temperature. Further, it was revealed that the CLZ loaded P84-SDC mixed micelles are converted into CLZ loaded pure P84 micelles at 30-fold dilutions which remain stable up to 48-fold dilutions. The results from the present studies suggest that P84-SDC mixed micelles can serve as suitable delivery vehicles for hydrophobic drug CLZ.
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Affiliation(s)
- Pankaj Singla
- Department of Chemistry, UGC-Centre for Advanced Studies-I, Guru Nanak Dev University, Amritsar 143005, India
| | - Onkar Singh
- Department of Chemistry, UGC-Centre for Advanced Studies-I, Guru Nanak Dev University, Amritsar 143005, India
| | - Shruti Chabba
- Department of Chemistry, UGC-Centre for Advanced Studies-I, Guru Nanak Dev University, Amritsar 143005, India
| | - V K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Rakesh Kumar Mahajan
- Department of Chemistry, UGC-Centre for Advanced Studies-I, Guru Nanak Dev University, Amritsar 143005, India.
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Kagan S, Ickowicz DE, Domb AJ, Dagan A, Polacheck I. Unique aggregation of conjugated amphotericin B and its interaction with lipid membranes. Med Mycol 2018; 55:414-421. [PMID: 28339539 DOI: 10.1093/mmy/myw099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 09/17/2016] [Indexed: 11/13/2022] Open
Abstract
The purpose of this paper was to investigate the aggregation of amphotericin B (AMB) and AMB-arabinogalactan conjugate (AMB-AGC), and the interactions of these drugs with free and membrane-embedded sterols. Aggregation of AMB and AMB-AGC was studied by circular dichroic (CD) and UV absorbance spectroscopic techniques. The effect of liposomes on the spectra was utilized to investigate the interactions of aggregates with membrane-embedded sterols. Interaction with free sterols was studied by measuring sterols' effect on AMB/AMB-AGC susceptibility test. The results demonstrated that AMB-AGC forms unique aggregates in aqueous solution which differ from those formed by free AMB. Ergosterol and cholesterol embedded in liposomes, affected the CD spectra obtained for both AMB and AMB-AGC, indicating interactions of these sterols with both drugs. Interaction with both cholesterol and ergosterol resulted in an increase of AMB-AGC's minimal inhibitory concentration (MIC) in Candida albicans. In conclusion, AMB-AGC forms unique aggregates in aqueous solution; these aggregates interact with membrane-embedded cholesterol and ergosterol and with free sterols. These results indicate that the selectivity of AMB-AGC to fungal cells may not occur due to inability to bind cholesterol but probably as a result of this unique aggregation. Understanding this mechanism may help to develop a safer AMB formulation for therapy.
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Affiliation(s)
- Sarah Kagan
- Department of Clinical Microbiology and Infectious Diseases, Hadassah - Hebrew University Medical Center, Jerusalem 9112001, Israel
| | - Diana E Ickowicz
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Abraham J Domb
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Arie Dagan
- Institute for Medical Research Israel-Canada, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Itzhack Polacheck
- Department of Clinical Microbiology and Infectious Diseases, Hadassah - Hebrew University Medical Center, Jerusalem 9112001, Israel
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Pentland DR, Piper-Brown E, Mühlschlegel FA, Gourlay CW. Ras signalling in pathogenic yeasts. MICROBIAL CELL 2017; 5:63-73. [PMID: 29417055 PMCID: PMC5798406 DOI: 10.15698/mic2018.02.612] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The small GTPase Ras acts as a master regulator of growth, stress response and cell death in eukaryotic cells. The control of Ras activity is fundamental, as highlighted by the oncogenic properties of constitutive forms of Ras proteins. Ras also plays a crucial role in the pathogenicity of fungal pathogens where it has been found to regulate a number of adaptions required for virulence. The importance of Ras in fungal disease raises the possibility that it may provide a useful target for the development of new treatments at a time when resistance to available antifungals is increasing. New findings suggest that important regulatory sequences found within fungal Ras proteins that are not conserved may prove useful in the development of new antifungals. Here we review the roles of Ras protein function and signalling in the major human yeast pathogens Candida albicans and Cryptococcus neoformans and discuss the potential for targeting Ras as a novel approach to anti-fungal therapy.
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Affiliation(s)
- Daniel R Pentland
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, Kent, United Kingdom, CT2 7NJ
| | - Elliot Piper-Brown
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, Kent, United Kingdom, CT2 7NJ
| | - Fritz A Mühlschlegel
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, Kent, United Kingdom, CT2 7NJ.,Laboratoire national de santé, 1, Rue Louis Rech, L-3555 Dudelange, Luxembourg
| | - Campbell W Gourlay
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, Kent, United Kingdom, CT2 7NJ
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36
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Ansari MY, Dikhit MR, Sahoo GC, Ali V, Das P. Recent advancement and treatment of leishmaniasis based on pharmacoinformatics approach: Current and future outlook. GENE REPORTS 2017. [DOI: 10.1016/j.genrep.2017.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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37
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Rozenfeld JHK, Duarte EL, Oliveira TR, Lamy MT. Structural insights on biologically relevant cationic membranes by ESR spectroscopy. Biophys Rev 2017; 9:633-647. [PMID: 28836112 PMCID: PMC5662045 DOI: 10.1007/s12551-017-0304-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 07/28/2017] [Indexed: 12/26/2022] Open
Abstract
Cationic bilayers have been used as models to study membrane fusion, templates for polymerization and deposition of materials, carriers of nucleic acids and hydrophobic drugs, microbicidal agents and vaccine adjuvants. The versatility of these membranes depends on their structure. Electron spin resonance (ESR) spectroscopy is a powerful technique that employs hydrophobic spin labels to probe membrane structure and packing. The focus of this review is the extensive structural characterization of cationic membranes prepared with dioctadecyldimethylammonium bromide or diC14-amidine to illustrate how ESR spectroscopy can provide important structural information on bilayer thermotropic behavior, gel and fluid phases, phase coexistence, presence of bilayer interdigitation, membrane fusion and interactions with other biologically relevant molecules.
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Affiliation(s)
- Julio H K Rozenfeld
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Botucatu 862, São Paulo, SP, 04023-062, Brazil
| | - Evandro L Duarte
- Instituto de Física, Universidade de São Paulo, R. do Matão 1371, São Paulo, SP, 05508-090, Brazil
| | - Tiago R Oliveira
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC, R. Arcturus (Jd Antares), São Bernardo do Campo, SP, Brazil
| | - M Teresa Lamy
- Instituto de Física, Universidade de São Paulo, R. do Matão 1371, São Paulo, SP, 05508-090, Brazil.
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Halbandge SD, Mortale SP, Karuppayil SM. Biofabricated Silver Nanoparticles Synergistically Activate Amphotericin B Against Mature Biofilm Forms of Candida Albicans. ACTA ACUST UNITED AC 2017. [DOI: 10.2174/1875933501704010001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Background:
Biofilm formation by Candida albicans is a significant clinical challenge. Fungal biofilms are resistant to most of the currently available antifungal agents. Amphotericin-B (AmB) is an antifungal agent used for the treatment of systematic fungal infections but it is well known for its toxicities and side-effects. Novel approaches are needed to treat these infections that can reduce its toxicities.
Objectives:
Current study aims to evaluate the efficacy of silver nanoparticles (SNPs) alone and in combination with AmB against growth and biofilm formation in C. albicans.
Methods:
Combinations of SNP-AmB were tested against planktonic growth and biofilm formation in vitro. Micro broth dilution method was used to study planktonic growth and biofilm formation. The fractional inhibitory concentration indices (FICI) were calculated by using a checkerboard format. Biofilm formation was analyzed by using XTT-metabolic assay.
Results:
MIC of AmB for developing biofilm was lowered by 16 fold in combination with SNPs. The calculated fractional inhibitory concentration indices were 0.1875 suggesting that this interaction is synergistic. Similarly, the mature biofilms were significantly prevented by SNPs-AmB combination. This interaction was synergistic. Furthermore, interaction between SNPs and AmB against planktonic growth was additive. Hemolytic activity assay was carried out on these drugs and combinations. Drug required for inhibition alone as well as in combination did not exhibit hemolytic activity.
Conclusion:
The combinations with SNPs lead to decreases in the dosage of AmB required for anti-Candida activity. SNPs-AmB combination could be an effective strategy against biofilm formed by C. albicans.
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Zia Q, Mohammad O, Rauf MA, Khan W, Zubair S. Biomimetically engineered Amphotericin B nano-aggregates circumvent toxicity constraints and treat systemic fungal infection in experimental animals. Sci Rep 2017; 7:11873. [PMID: 28928478 PMCID: PMC5605718 DOI: 10.1038/s41598-017-11847-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 08/15/2017] [Indexed: 12/30/2022] Open
Abstract
Biomimetic synthesis of nanoparticles offers a convenient and bio friendly approach to fabricate complex structures with sub-nanometer precision from simple precursor components. In the present study, we have synthesized nanoparticles of Amphotericin B (AmB), a potent antifungal agent, using Aloe vera leaf extract. The synthesis of AmB nano-assemblies (AmB-NAs) was established employing spectro-photometric and electron microscopic studies, while their crystalline nature was established by X-ray diffraction. AmB-nano-formulation showed much higher stability in both phosphate buffer saline and serum and exhibit sustained release of parent drug over an extended time period. The as-synthesized AmB-NA possessed significantly less haemolysis as well as nephrotoxicity in the host at par with Ambisome®, a liposomized AmB formulation. Interestingly, the AmB-NAs were more effective in killing various fungal pathogens including Candida spp. and evoked less drug related toxic manifestations in the host as compared to free form of the drug. The data of the present study suggest that biomimetically synthesized AmB-NA circumvent toxicity issues and offer a promising approach to eliminate systemic fungal infections in Balb/C mice.
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Affiliation(s)
- Qamar Zia
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Owais Mohammad
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Mohd Ahmar Rauf
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Wasi Khan
- Department of Applied Physics, Aligarh Muslim University, Aligarh, India
| | - Swaleha Zubair
- Women's College, Aligarh Muslim University, Aligarh, India.
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Cárdenas-Zúñiga R, Silva-Olivares A, Villalba-Magdaleno JDA, Sánchez-Monroy V, Serrano-Luna J, Shibayama M. Amphotericin B induces apoptosis-like programmed cell death in Naegleria fowleri and Naegleria gruberi. MICROBIOLOGY-SGM 2017; 163:940-949. [PMID: 28721850 DOI: 10.1099/mic.0.000500] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Naegleria fowleri and Naegleria gruberi belong to the free-living amoebae group. It is widely known that the non-pathogenic species N. gruberi is usually employed as a model to describe molecular pathways in this genus, mainly because its genome has been recently described. However, N. fowleri is an aetiological agent of primary amoebic meningoencephalitis, an acute and fatal disease. Currently, the most widely used drug for its treatment is amphotericin B (AmB). It was previously reported that AmB has an amoebicidal effect in both N. fowleri and N. gruberi trophozoites by inducing morphological changes that resemble programmed cell death (PCD). PCD is a mechanism that activates morphological, biochemical and genetic changes. However, PCD has not yet been characterized in the genus Naegleria. The aim of the present work was to evaluate the typical markers to describe PCD in both amoebae. These results showed that treated trophozoites displayed several parameters of apoptosis-like PCD in both species. We observed ultrastructural changes, an increase in reactive oxygen species, phosphatidylserine externalization and a decrease in intracellular potassium, while DNA degradation was evaluated using the TUNEL assay and agarose gels, and all of these parameters are related to PCD. Finally, we analysed the expression of apoptosis-related genes, such as sir2 and atg8, in N. gruberi. Taken together, our results showed that AmB induces the morphological, biochemical and genetic changes of apoptosis-like PCD in the genus Naegleria.
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Affiliation(s)
- Roberto Cárdenas-Zúñiga
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies of the National Polytechnic Institute, Av. IPN 2508, San Pedro Zacatenco, 07360, Mexico City, Mexico
| | - Angélica Silva-Olivares
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies of the National Polytechnic Institute, Av. IPN 2508, San Pedro Zacatenco, 07360, Mexico City, Mexico
| | | | - Virginia Sánchez-Monroy
- Laboratorio de Biomedicina Molecular, Escuela Nacional de Medicina y Homeopatía, Instituto Politénico Nacional, Calle Guillermo Massieu H. 239, Col. La Escalera, 07320, Mexico City, Mexico
| | - Jesús Serrano-Luna
- Department of Cell Biology, Center for Research and Advanced Studies of the National Polytechnic Institute, Av. IPN 2508, San Pedro Zacatenco, 07360, Mexico City, Mexico
| | - Mineko Shibayama
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies of the National Polytechnic Institute, Av. IPN 2508, San Pedro Zacatenco, 07360, Mexico City, Mexico
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Bellmann R, Smuszkiewicz P. Pharmacokinetics of antifungal drugs: practical implications for optimized treatment of patients. Infection 2017; 45:737-779. [PMID: 28702763 PMCID: PMC5696449 DOI: 10.1007/s15010-017-1042-z] [Citation(s) in RCA: 209] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 06/25/2017] [Indexed: 02/08/2023]
Abstract
Introduction Because of the high mortality of invasive fungal infections (IFIs), appropriate exposure to antifungals appears to be crucial for therapeutic efficacy and safety. Materials and methods This review summarises published pharmacokinetic data on systemically administered antifungals focusing on co-morbidities, target-site penetration, and combination antifungal therapy. Conclusions and discussion Amphotericin B is eliminated unchanged via urine and faeces. Flucytosine and fluconazole display low protein binding and are eliminated by the kidney. Itraconazole, voriconazole, posaconazole and isavuconazole are metabolised in the liver. Azoles are substrates and inhibitors of cytochrome P450 (CYP) isoenzymes and are therefore involved in numerous drug–drug interactions. Anidulafungin is spontaneously degraded in the plasma. Caspofungin and micafungin undergo enzymatic metabolism in the liver, which is independent of CYP. Although several drug–drug interactions occur during caspofungin and micafungin treatment, echinocandins display a lower potential for drug–drug interactions. Flucytosine and azoles penetrate into most of relevant tissues. Amphotericin B accumulates in the liver and in the spleen. Its concentrations in lung and kidney are intermediate and relatively low myocardium and brain. Tissue distribution of echinocandins is similar to that of amphotericin. Combination antifungal therapy is established for cryptococcosis but controversial in other IFIs such as invasive aspergillosis and mucormycosis.
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Affiliation(s)
- Romuald Bellmann
- Clinical Pharmacokinetics Unit, Division of Intensive Care and Emergency Medicine, Department of Internal Medicine I, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.
| | - Piotr Smuszkiewicz
- Department of Anesthesiology, Intensive Therapy and Pain Treatment, University Hospital, Poznań, Poland
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Yadav SK, Parikh K, Kumar S. Mixed micelle formation of cationic gemini surfactant with anionic bile salt: a PAH solubilization study. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.048] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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43
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Development of high efficacy peptide coated iron oxide nanoparticles encapsulated amphotericin B drug delivery system against visceral leishmaniasis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:1465-1471. [DOI: 10.1016/j.msec.2017.02.145] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/13/2016] [Accepted: 02/24/2017] [Indexed: 11/20/2022]
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Nerolidol, the main constituent of Piper aduncum essential oil, has anti-Leishmania braziliensis activity. Parasitology 2017; 144:1179-1190. [PMID: 28482935 DOI: 10.1017/s0031182017000452] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Leishmania (Viannia) braziliensis is a protozoan that causes mucocutaneous leishmaniasis, which is an infectious disease that affects more than 12 million people worldwide. The available treatment is limited, has side-effects or is inefficient. In a search for alternative compounds of natural origin, we tested the microbicidal activity of Piper aduncum essential oil (PaEO) on this parasite. Our data showed that PaEO had an inhibitory effect on the growth of L. braziliensis promastigotes with an IC50/24 h=77·9 µg mL-1. The main constituent (nerolidol: 25·22%) presented a similar inhibitory effect (IC50/24 h = 74·3 µg mL-1). Ultrastructural observation of nerolidol-treated parasites by scanning and transmission electron microscopies revealed cell shrinkage and morphological alterations in the mitochondrion, nuclear chromatin and flagellar pocket. Flow cytometry analysis showed a reduction in the cell size, loss of mitochondrial membrane potential, phosphatidylserine exposure and DNA degradation, which when associated with the morphological changes indicated that nerolidol induced incidental cell death in the L. braziliensis promastigotes. The results presented here indicate that nerolidol derivatives are promising compounds for further evaluation against Leishmania parasites.
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Radwan MA, AlQuadeib BT, Šiller L, Wright MC, Horrocks B. Oral administration of amphotericin B nanoparticles: antifungal activity, bioavailability and toxicity in rats. Drug Deliv 2017; 24:40-50. [PMID: 28155565 PMCID: PMC8247729 DOI: 10.1080/10717544.2016.1228715] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Amphotericin B (AMB) is used most commonly in severe systemic life-threatening fungal infections. There is currently an unmet need for an efficacious (AMB) formulation amenable to oral administration with better bioavailability and lower nephrotoxicity. Novel PEGylated polylactic-polyglycolic acid copolymer (PLGA-PEG) nanoparticles (NPs) formulations of AMB were therefore studied for their ability to kill Candida albicans (C. albicans). The antifungal activity of AMB formulations was assessed in C. albicans. Its bioavalability was investigated in nine groups of rats (n = 6). Toxicity was examined by an in vitro blood hemolysis assay, and in vivo nephrotoxicity after single and multiple dosing for a week by blood urea nitrogen (BUN) and plasma creatinine (PCr) measurements. The MIC of AMB loaded to PLGA-PEG NPs against C. albicans was reduced two to threefold compared with free AMB. Novel oral AMB delivery loaded to PLGA-PEG NPs was markedly systemically available compared to Fungizone® in rats. The addition of 2% of GA to the AMB formulation significantly (p < 0.05) improved the bioavailability from 1.5 to 10.5% and the relative bioavailability was > 790% that of Fungizone®. The novel AMB formulations showed minimal toxicity and better efficacy compared to Fungizone®. No nephrotoxicity in rats was detected after a week of multiple dosing of AMB NPs based on BUN and PCr, which remained at normal levels. An oral delivery system of AMB-loaded to PLGA-PEG NPs with better efficacy and minimal toxicity was formulated. The addition of glycyrrhizic acid (GA) to AMB NPs formulation resulted in a significant oral absorption and improved bioavailability in rats.
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Affiliation(s)
- Mahasen A Radwan
- a Department of Pharmaceutical Practice , College of Pharmacy, Princess Nourah bint Abdelrahman University , Riyadh , Saudi Arabia.,b Department of Pharmaceutics and Pharmaceutical Technology , College of Pharmacy, Egyptian Russian University , Bader City , Egypt
| | - Bushra T AlQuadeib
- c Department of Pharmaceutics , College of Pharmacy, King Saud University , Riyadh , Saudi Arabia
| | - Lidija Šiller
- d School of Chemical Engineering and Advanced Materials, Herschel Building, Newcastle University , Newcastle upon Tyne , UK , and
| | - Matthew C Wright
- e Institute of Cellular Medicine, Leech Building, Medical School, Newcastle University , Newcastle upon Tyne , UK
| | - Benjamin Horrocks
- d School of Chemical Engineering and Advanced Materials, Herschel Building, Newcastle University , Newcastle upon Tyne , UK , and
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Soliman GM. Nanoparticles as safe and effective delivery systems of antifungal agents: Achievements and challenges. Int J Pharm 2017; 523:15-32. [PMID: 28323096 DOI: 10.1016/j.ijpharm.2017.03.019] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/21/2017] [Accepted: 03/11/2017] [Indexed: 11/25/2022]
Abstract
Invasive fungal infections are becoming a major health concern in several groups of patients leading to severe morbidity and mortality. Moreover, cutaneous fungal infections are a major cause of visits to outpatient dermatology clinics. Despite the availability of several effective agents in the antifungal drug arena, their therapeutic outcome is less than optimal due to limitations related to drug physicochemical properties and toxicity. For instance, poor aqueous solubility limits the formulation options and efficacy of several azole antifungal drugs while toxicity limits the benefits of many other drugs. Nanoparticles hold great promise to overcome these limitations due to their ability to enhance drug aqueous solubility, bioavailability and antifungal efficacy. Further, drug incorporation into nanoparticles could greatly reduce its toxicity. Despite these interesting nanoparticle features, there are only few marketed nanoparticle-based antifungal drug formulations. This review sheds light on different classes of nanoparticles used in antifungal drug delivery, such as lipid-based vesicles, polymeric micelles, solid lipid nanoparticles, nanostructured lipid carriers, nanoemulsions and dendrimers with emphasis on their advantages and limitations. Translation of these nanoformulations from the lab to the clinic could be facilitated by focusing the research on overcoming problems related to nanoparticle stability, drug loading and high cost of production and standardization.
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Affiliation(s)
- Ghareb M Soliman
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia.
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Shadab M, Jha B, Asad M, Deepthi M, Kamran M, Ali N. Apoptosis-like cell death in Leishmania donovani treated with KalsomeTM10, a new liposomal amphotericin B. PLoS One 2017; 12:e0171306. [PMID: 28170432 PMCID: PMC5295687 DOI: 10.1371/journal.pone.0171306] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 12/14/2016] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE The present study aimed to elucidate the cell death mechanism in Leishmania donovani upon treatment with KalsomeTM10, a new liposomal amphotericin B. METHODOLOGY/PRINCIPAL FINDINGS We studied morphological alterations in promastigotes through phase contrast and scanning electron microscopy. Phosphatidylserine (PS) exposure, loss of mitochondrial membrane potential and disruption of mitochondrial integrity was determined by flow cytometry using annexinV-FITC, JC-1 and mitotraker, respectively. For analysing oxidative stress, generation of H2O2 (bioluminescence kit) and mitochondrial superoxide O2- (mitosox) were measured. DNA fragmentation was evaluated using terminal deoxyribonucleotidyl transferase mediated dUTP nick-end labelling (TUNEL) and DNA laddering assay. We found that KalsomeTM10 is more effective then Ambisome against the promastigote as well as intracellular amastigote forms. The mechanistic study showed that KalsomeTM10 induced several morphological alterations in promastigotes typical of apoptosis. KalsomeTM10 treatment showed a dose- and time-dependent exposure of PS in promastigotes. Further, study on mitochondrial pathway revealed loss of mitochondrial membrane potential as well as disruption in mitochondrial integrity with depletion of intracellular pool of ATP. KalsomeTM10 treated promastigotes showed increased ROS production, diminished GSH levels and increased caspase-like activity. DNA fragmentation and cell cycle arrest was observed in KalsomeTM10 treated promastigotes. Apoptotic DNA fragmentation was also observed in KalsomeTM10 treated intracellular amastigotes. KalsomeTM10 induced generation of ROS and nitric oxide leads to the killing of the intracellular parasites. Moreover, endocytosis is indispensable for KalsomeTM10 mediated anti-leishmanial effect in host macrophage. CONCLUSIONS KalsomeTM10 induces apoptotic-like cell death in L. donovani parasites to exhibit its anti-leishmanial function.
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Affiliation(s)
- Md. Shadab
- Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata, West Bengal, India
| | - Baijayanti Jha
- Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata, West Bengal, India
| | - Mohammad Asad
- Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata, West Bengal, India
| | - Makaraju Deepthi
- Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata, West Bengal, India
| | - Mohd. Kamran
- Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata, West Bengal, India
| | - Nahid Ali
- Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata, West Bengal, India
- * E-mail:
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do Nascimento TG, da Silva PF, Azevedo LF, da Rocha LG, de Moraes Porto ICC, Lima E Moura TFA, Basílio-Júnior ID, Grillo LAM, Dornelas CB, Fonseca EJDS, de Jesus Oliveira E, Zhang AT, Watson DG. Polymeric Nanoparticles of Brazilian Red Propolis Extract: Preparation, Characterization, Antioxidant and Leishmanicidal Activity. NANOSCALE RESEARCH LETTERS 2016; 11:301. [PMID: 27316742 PMCID: PMC4912519 DOI: 10.1186/s11671-016-1517-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 06/02/2016] [Indexed: 05/30/2023]
Abstract
The ever-increasing demand for natural products and biotechnology derived from bees and ultra-modernization of various analytical devices has facilitated the rational and planned development of biotechnology products with a focus on human health to treat chronic and neglected diseases. The aim of the present study was to prepare and characterize polymeric nanoparticles loaded with Brazilian red propolis extract and evaluate the cytotoxic activity of "multiple-constituent extract in co-delivery system" for antileishmanial therapies. The polymeric nanoparticles loaded with red propolis extract were prepared with a combination of poly-ε-caprolactone and pluronic using nanoprecipitation method and characterized by different analytical techniques, antioxidant and leishmanicidal assay. The red propolis nanoparticles in aqueous medium presented particle size (200-280 nm) in nanometric scale and zeta analysis (-20 to -26 mV) revealed stability of the nanoparticles without aggregation phenomenon during 1 month. After freeze-drying method using cryoprotectant (sodium starch glycolate), it was possible to observe particles with smooth and spherical shape and apparent size of 200 to 400 nm. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and thermal analysis revealed the encapsulation of the flavonoids from the red propolis extract into the polymeric matrix. Ultra performance liquid chromatography coupled with diode array detector (UPLC-DAD) identified the flavonoids liquiritigenin, pinobanksin, isoliquiritigenin, formononetin and biochanin A in ethanolic extract of propolis (EEP) and nanoparticles of red propolis extract (NRPE). The efficiency of encapsulation was determinate, and median values (75.0 %) were calculated using UPLC-DAD. 2,2-Diphenyl-1-picryhydrazyl method showed antioxidant activity to EEP and red propolis nanoparticles. Compared to negative control, EEP and NRPE exhibited leishmanicidal activity with an IC50 value of ≅38.0 μg/mL and 31.3 μg/mL, 47.2 μg/mL, 154.2μg/mL and 193.2 μg/mL for NRPE A1, NRPE A2, NRPE A3 and NRPE A4, respectively. Nanoparticles loaded with red propolis extract in co-delivery system and EEP presented cytotoxic activity on Leishmania (V.) braziliensis. Red propolis extract loaded in nanoparticles has shown to be potential candidates as intermediate products for preparation of various pharmaceutical dosage forms containing red propolis extract in the therapy against negligible diseases such as leishmaniasis. Graphical Abstract Some biochemical mechanisms of cellular debridement of Leishmania (V.) braziliensis species by the flavonoids of red propolis extract (EEP) or NRPE loaded with red propolis extract.
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Affiliation(s)
- Ticiano Gomes do Nascimento
- Quality Control Laboratory of Drugs and Medicines, Postgraduate Program in Pharmaceutical Sciences, School of Nursing and Pharmacy, Federal University of Alagoas, Alagoas, Avenida Lourival Melo Mota, s/n Campus A. C. Simões, University City, Tabuleiro dos Martins, 57072-900, Maceió, Alagoas, Brazil.
| | - Priscilla Fonseca da Silva
- Quality Control Laboratory of Drugs and Medicines, Postgraduate Program in Pharmaceutical Sciences, School of Nursing and Pharmacy, Federal University of Alagoas, Alagoas, Avenida Lourival Melo Mota, s/n Campus A. C. Simões, University City, Tabuleiro dos Martins, 57072-900, Maceió, Alagoas, Brazil
| | - Lais Farias Azevedo
- Quality Control Laboratory of Drugs and Medicines, Postgraduate Program in Pharmaceutical Sciences, School of Nursing and Pharmacy, Federal University of Alagoas, Alagoas, Avenida Lourival Melo Mota, s/n Campus A. C. Simões, University City, Tabuleiro dos Martins, 57072-900, Maceió, Alagoas, Brazil
| | - Louisianny Guerra da Rocha
- Quality Control of Drugs Laboratory (LCQMed), Postgraduate Program of Pharmaceutical Science, Department of Pharmacy, Federal University of Rio Grande do Norte, Rua General Cordeiro de Farias S/N, Petrópolis, Natal, RN, 59010-180, Brazil
| | - Isabel Cristina Celerino de Moraes Porto
- Quality Control Laboratory of Drugs and Medicines, Postgraduate Program in Pharmaceutical Sciences, School of Nursing and Pharmacy, Federal University of Alagoas, Alagoas, Avenida Lourival Melo Mota, s/n Campus A. C. Simões, University City, Tabuleiro dos Martins, 57072-900, Maceió, Alagoas, Brazil
| | - Túlio Flávio Accioly Lima E Moura
- Quality Control of Drugs Laboratory (LCQMed), Postgraduate Program of Pharmaceutical Science, Department of Pharmacy, Federal University of Rio Grande do Norte, Rua General Cordeiro de Farias S/N, Petrópolis, Natal, RN, 59010-180, Brazil
| | - Irinaldo Diniz Basílio-Júnior
- Quality Control Laboratory of Drugs and Medicines, Postgraduate Program in Pharmaceutical Sciences, School of Nursing and Pharmacy, Federal University of Alagoas, Alagoas, Avenida Lourival Melo Mota, s/n Campus A. C. Simões, University City, Tabuleiro dos Martins, 57072-900, Maceió, Alagoas, Brazil
| | - Luciano Aparecido Meireles Grillo
- Quality Control Laboratory of Drugs and Medicines, Postgraduate Program in Pharmaceutical Sciences, School of Nursing and Pharmacy, Federal University of Alagoas, Alagoas, Avenida Lourival Melo Mota, s/n Campus A. C. Simões, University City, Tabuleiro dos Martins, 57072-900, Maceió, Alagoas, Brazil
| | - Camila Braga Dornelas
- Quality Control Laboratory of Drugs and Medicines, Postgraduate Program in Pharmaceutical Sciences, School of Nursing and Pharmacy, Federal University of Alagoas, Alagoas, Avenida Lourival Melo Mota, s/n Campus A. C. Simões, University City, Tabuleiro dos Martins, 57072-900, Maceió, Alagoas, Brazil
| | - Eduardo Jorge da Silva Fonseca
- Quality Control Laboratory of Drugs and Medicines, Postgraduate Program in Pharmaceutical Sciences, School of Nursing and Pharmacy, Federal University of Alagoas, Alagoas, Avenida Lourival Melo Mota, s/n Campus A. C. Simões, University City, Tabuleiro dos Martins, 57072-900, Maceió, Alagoas, Brazil
| | - Eduardo de Jesus Oliveira
- Laboratory of Pharmaceutical analysis, Postgraduate Program of Pharmaceutical Science, Pharmacy College, Federal University of Vales do Jequitinhonha e Mucuri, Campus JK, Rodovia MGT 367 Km 583, n° 5000, Alto da Jacuba, Diamantina, Minas Gerais, 39100-000, Brazil
| | - Alex Tong Zhang
- Department of Pharmaceutical Science, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 27 Taylor Street, Glasgow, G4 0NR, UK
| | - David G Watson
- Department of Pharmaceutical Science, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 27 Taylor Street, Glasgow, G4 0NR, UK
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Hydroxychavicol: A phytochemical targeting cutaneous fungal infections. Sci Rep 2016; 6:37867. [PMID: 27897199 PMCID: PMC5126685 DOI: 10.1038/srep37867] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 11/01/2016] [Indexed: 12/31/2022] Open
Abstract
The present study was designed to investigate the potency of hydroxychavicol on selected cutaneous human pathogenic fungi by the use of in vitro and in vivo assays and mechanistic characterization along with toxicological effects. Hydroxychavicol consistently displayed a fungicidal effect against all fungal species tested. Inoculum concentrations over the range of 104 to 107 CFU/ml did not significantly alter its antifungal potential and time–kill curve results revealed concentration–dependent killing. It also inhibited the growth of biofilm generated by Trichophyton mentagrophytes and Candida parapsilosis and reduced the preformed biofilms. Hydroxychavicol was highly effective in the treatment, and mycological eradication of an experimentally induced topical infection model of dermatophytosis (tinea corporis) and cutaneous candidiasis in guinea pigs, respectively. The mode of action of hydroxychavicol appears to originate from the disruption of cell membrane integrity. Administration of hydroxychavicol in mice at 500 mg per kg of body weight by orally produced no overt toxicity. The retention capacity of hydroxychavicol in vitro, in the presence of keratin has attributed to its in vivo effectiveness in the guinea pig model of topical infections. Furthermore, it is suggestive of its potential use as phytochemical for topical use in cutaneous fungal infections.
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Santos DCM, Lima ML, Toledo JS, Fernandes PA, Aguiar MMG, López-Gonzálvez Á, Ferreira LAM, Fernandes AP, Barbas C. Metabolomics as a tool to evaluate the toxicity of formulations containing amphotericin B, an antileishmanial drug. Toxicol Res (Camb) 2016; 5:1720-1732. [PMID: 30090471 PMCID: PMC6062298 DOI: 10.1039/c6tx00253f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 09/12/2016] [Indexed: 11/21/2022] Open
Abstract
Amphotericin B (AmB) is a drug of choice against life-threatening systemic fungal infections and an alternative therapy for the treatment of all forms of leishmaniasis. It is known that AmB and its conventional formulation cause renal damage; however, the lipid formulations can reduce these effects. The aim of the present study was to identify metabolic changes in mice treated with two different AmB formulations, a nanoemulsion (NE) (lipid system carrier) loaded with AmB and the conventional formulation (C-AmB). For this purpose, metabolic fingerprinting represents a valuable strategy to monitor, in a non-targeted manner, the changes that are at the base of the toxicity mechanism of AmB. Plasma samples of BALB-c mice were collected after treatment with 3 alternate doses of AmB at 1 mg kg-1 administered intravenously and analysed with CE, LC and GC coupled to MS. Blood urea nitrogen (BUN) and plasma creatinine levels were also analysed. Kidney tissue specimens were collected and evaluated. It was not observed that there were any alterations in BUN and creatinine levels as well as in histopathological analysis. Approximately 30 metabolites were identified as potentially related to early C-AmB-induced nephrotoxicity. Disturbances in the arachidonic acid, glycerophospholipid, acylcarnitine and polyunsaturated fatty acid (PUFA) pathways were observed in C-AmB-treated mice. In the AmB-loaded NE group, it was observed that there were fewer metabolic changes, including changes in the plasma levels of cortisol and pyranose. The candidate biomarkers revealed in this study could be useful in the detection of the onset and severity of kidney injury induced by AmB formulations.
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Affiliation(s)
- Délia C M Santos
- Department of Pharmaceutics , Faculty of Pharmacy , Federal University of Minas Gerais (UFMG) , Belo Horizonte , Brazil . ; Tel: +(55) 31 3409 6985
- CEMBIO , Centre for Metabolomics and Bioanalysis , Faculty of Pharmacy , San Pablo CEU University , Madrid , Spain
| | - Marta L Lima
- Institute of Tropical Medicine , University of São Paulo , São Paulo , SP , Brazil
- CEMBIO , Centre for Metabolomics and Bioanalysis , Faculty of Pharmacy , San Pablo CEU University , Madrid , Spain
| | - Juliano S Toledo
- Department of Pharmaceutics , Faculty of Pharmacy , Federal University of Minas Gerais (UFMG) , Belo Horizonte , Brazil . ; Tel: +(55) 31 3409 6985
- CEMBIO , Centre for Metabolomics and Bioanalysis , Faculty of Pharmacy , San Pablo CEU University , Madrid , Spain
| | - Paula A Fernandes
- Department of Pharmaceutics , Faculty of Pharmacy , Federal University of Minas Gerais (UFMG) , Belo Horizonte , Brazil . ; Tel: +(55) 31 3409 6985
| | - Marta M G Aguiar
- Department of Pharmaceutics , Faculty of Pharmacy , Federal University of Minas Gerais (UFMG) , Belo Horizonte , Brazil . ; Tel: +(55) 31 3409 6985
| | - Ángeles López-Gonzálvez
- CEMBIO , Centre for Metabolomics and Bioanalysis , Faculty of Pharmacy , San Pablo CEU University , Madrid , Spain
| | - Lucas A M Ferreira
- Department of Pharmaceutics , Faculty of Pharmacy , Federal University of Minas Gerais (UFMG) , Belo Horizonte , Brazil . ; Tel: +(55) 31 3409 6985
| | - Ana Paula Fernandes
- Department of Pharmaceutics , Faculty of Pharmacy , Federal University of Minas Gerais (UFMG) , Belo Horizonte , Brazil . ; Tel: +(55) 31 3409 6985
| | - Coral Barbas
- CEMBIO , Centre for Metabolomics and Bioanalysis , Faculty of Pharmacy , San Pablo CEU University , Madrid , Spain
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