1
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Zaleski MH, Omo-Lamai S, Nong J, Chase LS, Myerson JW, Glassman PM, Lee F, Reyes-Esteves S, Wang Z, Patel MN, Peshkova AD, Komatsu H, Axelsen PH, Muzykantov VR, Marcos-Contreras OA, Brenner JS. Nanocarriers' repartitioning of drugs between blood subcompartments as a mechanism of improving pharmacokinetics, safety, and efficacy. J Control Release 2024; 374:425-440. [PMID: 39103056 DOI: 10.1016/j.jconrel.2024.07.070] [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: 02/19/2024] [Revised: 07/25/2024] [Accepted: 07/29/2024] [Indexed: 08/07/2024]
Abstract
For medical emergencies, such as acute ischemic stroke, rapid drug delivery to the target site is essential. For many small molecule drugs, this goal is unachievable due to poor solubility that prevents intravenous administration, and less obviously, by extensive partitioning to plasma proteins and red blood cells (RBCs), which greatly slows delivery to the target. Here we study these effects and how they can be solved by loading into nanoscale drug carriers. We focus on fingolimod, a small molecule drug that is FDA-approved for treatment of multiple sclerosis, which has also shown promise in the treatment of stroke. Unfortunately, fingolimod has poor solubility and very extensive partitioning to plasma proteins and RBCs (in whole blood, 86% partitions to RBCs, 13.96% to plasma proteins, and 0.04% is free). We develop a liposomal formulation that slows the partitioning of fingolimod to RBCs and plasma proteins, enables intravenous delivery, and additionally prevents fingolimod toxicity to RBCs. The liposomal formulation nearly completely prevented fingolimod adsorption to plasma proteins (association with plasma proteins was 98.4 ± 0.4% for the free drug vs. 5.6 ± 0.4% for liposome-loaded drug). When incubated with whole blood in vitro, the liposomal formulation greatly slowed partitioning of fingolimod to RBCs and also eliminated deleterious effects of fingolimod on RBC rigidity, morphology, and hemolysis. In vivo, the liposomal formulation delayed fingolimod partitioning to RBCs for over 30 min, a critical time window for stroke. Fingolimod-loaded liposomes showed improved efficacy in a mouse model of post-stroke neuroinflammation, completely sealing the leaky blood-brain barrier (114 ± 11.5% reduction in albumin leak into the brain for targeted liposomes vs. 38 ± 16.5% reduction for free drug). This effect was only seen for liposomes modified with antibodies to enable targeted delivery to the site of action, and not in unmodified, long-circulating liposomes. Thus, loading fingolimod into liposomes prevented partitioning to RBCs and associated toxicities and enabled targeted delivery. This paradigm can be used for tuning the blood distribution of small molecule drugs for the treatment of acute illnesses requiring rapid pharmacologic intervention.
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Affiliation(s)
- Michael H Zaleski
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Serena Omo-Lamai
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Jia Nong
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Liam S Chase
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jacob W Myerson
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Patrick M Glassman
- Department of Pharmaceutical Sciences, School of Pharmacy, Temple University, Philadelphia, PA, USA
| | - Florence Lee
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Zhicheng Wang
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Manthan N Patel
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Alina D Peshkova
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Hiroaki Komatsu
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Paul H Axelsen
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Vladimir R Muzykantov
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Oscar A Marcos-Contreras
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - Jacob S Brenner
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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2
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Magalhães DM, Stewart NA, Mampay M, Rolle SO, Hall CM, Moeendarbary E, Flint MS, Sebastião AM, Valente CA, Dymond MK, Sheridan GK. The sphingosine 1-phosphate analogue, FTY720, modulates the lipidomic signature of the mouse hippocampus. J Neurochem 2024; 168:1113-1142. [PMID: 38339785 DOI: 10.1111/jnc.16073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/27/2023] [Accepted: 01/22/2024] [Indexed: 02/12/2024]
Abstract
The small-molecule drug, FTY720 (fingolimod), is a synthetic sphingosine 1-phosphate (S1P) analogue currently used to treat relapsing-remitting multiple sclerosis in both adults and children. FTY720 can cross the blood-brain barrier (BBB) and, over time, accumulate in lipid-rich areas of the central nervous system (CNS) by incorporating into phospholipid membranes. FTY720 has been shown to enhance cell membrane fluidity, which can modulate the functions of glial cells and neuronal populations involved in regulating behaviour. Moreover, direct modulation of S1P receptor-mediated lipid signalling by FTY720 can impact homeostatic CNS physiology, including neurotransmitter release probability, the biophysical properties of synaptic membranes, ion channel and transmembrane receptor kinetics, and synaptic plasticity mechanisms. The aim of this study was to investigate how chronic FTY720 treatment alters the lipid composition of CNS tissue in adolescent mice at a key stage of brain maturation. We focused on the hippocampus, a brain region known to be important for learning, memory, and the processing of sensory and emotional stimuli. Using mass spectrometry-based lipidomics, we discovered that FTY720 increases the fatty acid chain length of hydroxy-phosphatidylcholine (PCOH) lipids in the mouse hippocampus. It also decreases PCOH monounsaturated fatty acids (MUFAs) and increases PCOH polyunsaturated fatty acids (PUFAs). A total of 99 lipid species were up-regulated in the mouse hippocampus following 3 weeks of oral FTY720 exposure, whereas only 3 lipid species were down-regulated. FTY720 also modulated anxiety-like behaviours in young mice but did not affect spatial learning or memory formation. Our study presents a comprehensive overview of the lipid classes and lipid species that are altered in the hippocampus following chronic FTY720 exposure and provides novel insight into cellular and molecular mechanisms that may underlie the therapeutic or adverse effects of FTY720 in the central nervous system.
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Affiliation(s)
- Daniela M Magalhães
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Lisboa, Portugal
- School of Applied Sciences, University of Brighton, Brighton, UK
| | | | - Myrthe Mampay
- School of Applied Sciences, University of Brighton, Brighton, UK
| | - Sara O Rolle
- Green Templeton College, University of Oxford, Oxford, UK
| | - Chloe M Hall
- School of Applied Sciences, University of Brighton, Brighton, UK
- Department of Mechanical Engineering, University College London, London, UK
| | - Emad Moeendarbary
- Department of Mechanical Engineering, University College London, London, UK
- 199 Biotechnologies Ltd, London, UK
| | - Melanie S Flint
- School of Applied Sciences, University of Brighton, Brighton, UK
| | - Ana M Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Lisboa, Portugal
| | - Cláudia A Valente
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Lisboa, Portugal
| | - Marcus K Dymond
- School of Applied Sciences, University of Brighton, Brighton, UK
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3
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Almeida E Silva G, Galvão Wakui V, Kato L, Marquezin CA. Spectroscopic behavior of bufotenine and bufotenine N-oxide: Solvent and pH effects and interaction with biomembrane models. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184304. [PMID: 38408695 DOI: 10.1016/j.bbamem.2024.184304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/08/2024] [Accepted: 02/20/2024] [Indexed: 02/28/2024]
Abstract
Bufotenine is a fluorescent analog of Dimethyltryptamine (DMT) that has been widely studied due to its psychedelic properties and biological activity. However, little is known about its spectroscopic properties in different media. Thus, we present in this work, for the first time, the spectroscopic behavior of bufotenine and bufotenine N-oxide by means of their fluorescence properties. Both molecules exhibit changes in optical absorption and emission spectra with variations in pH of the medium and in different solvents. Assays in the presence of biomembranes models, like micelles and liposomes, were also performed. In surfactants titration experiments, the spectral shift observed in fluorescence shows the interaction of both molecules with pre-micellar structures and with micelles. Steady state anisotropy measurements show that both bufotenine and bufotenine N-oxide, in the studied concentration range, interact with liposomes without causing changes in the fluidity of the lipid bilayer. These results can be useful in studies that aim at searching for new compounds, inspired by bufotenine and bufotenine N-oxide, with relevant pharmacological activities and also in studies that use these molecules as markers of psychiatric disorders.
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Affiliation(s)
| | - Vinícius Galvão Wakui
- Instituto de Química, Universidade Federal de Goiás, CEP 74690-900, Goiânia, GO, Brazil
| | - Lucília Kato
- Instituto de Química, Universidade Federal de Goiás, CEP 74690-900, Goiânia, GO, Brazil
| | - Cássia A Marquezin
- Instituto de Física, Universidade Federal de Goiás, CEP 74690-900, Goiânia, GO, Brazil.
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4
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Enhancement of Fingolimod Content Uniformity as a Low-Dose Drug with Narrow Therapeutic Index Using Liquisolid Technique. J Pharm Innov 2020. [DOI: 10.1007/s12247-020-09492-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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5
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FTY720 induces non-canonical phosphatidylserine externalization and cell death in acute myeloid leukemia. Cell Death Dis 2019; 10:847. [PMID: 31699964 PMCID: PMC6838108 DOI: 10.1038/s41419-019-2080-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/15/2019] [Accepted: 10/21/2019] [Indexed: 01/01/2023]
Abstract
FTY720 (fingolimod) is a FDA-approved sphingosine analog that is phosphorylated in vivo to modulate sphingosine-1-phosphate receptor (S1PR) signaling for immunosuppression in patients with refractory multiple sclerosis. FTY720 also exhibits promising anticancer efficacy in several preclinical models. While FTY720-induced cytotoxicity is not due to S1PR signaling, the mechanism remains unclear and is reported to occur through various cell death pathways. Here, we performed a systematic, mechanistic study of FTY720-induced cell death in acute myeloid leukemia (AML). We found that FTY720 induced cell death in a panel of genetically diverse AML cell lines that was accompanied by rapid phosphatidylserine (PS) externalization. Importantly, FTY720-induced PS exposure was not due to any direct effects on plasma membrane integrity and was independent of canonical signaling by regulated cell death pathways known to activate lipid flip-flop, including caspase-dependent apoptosis/pyroptosis, necroptosis, ferroptosis, and reactive oxygen species-mediated cell death. Notably, PS exposure required cellular vacuolization induced by defects in endocytic trafficking and was suppressed by the inhibition of PP2A and shedding of Annexin V-positive subcellular particles. Collectively, our studies reveal a non-canonical pathway underlying PS externalization and cell death in AML to provide mechanistic insight into the antitumor properties of FTY720.
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6
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Mishra J, Kumar Mishra A. Unusual sensitivity of tween20: Cholesterol niosome structure to the presence of sodium dodecyl sulfate: A study using multiple fluorescent molecular probes. Colloids Surf B Biointerfaces 2019; 181:524-532. [DOI: 10.1016/j.colsurfb.2019.05.070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 11/27/2022]
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7
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Mohapatra M, Mishra AK. Excited state proton transfer based fluorescent molecular probes and their application in studying lipid bilayer membranes. Photochem Photobiol Sci 2019; 18:2830-2848. [DOI: 10.1039/c9pp00294d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The distribution and prototropic equilibria of 1-naphthol (NpOH) in lipid bilayer membrane.
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Affiliation(s)
| | - Ashok Kumar Mishra
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
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8
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Cilurzo F, Critello CD, Paolino D, Fiorillo AS, Fresta M, De Franciscis S, Celia C. Polydocanol foam stabilized by liposomes: Supramolecular nanoconstructs for sclerotherapy. Colloids Surf B Biointerfaces 2018; 175:469-476. [PMID: 30572155 DOI: 10.1016/j.colsurfb.2018.12.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 02/07/2023]
Abstract
Vascular pathology of the lower limbs is a widespread disease affecting the quality of life for more than 30% of the adult world population. Polydocanol foam is presently the main therapeutic option for treating varicosities, inflammation, and chronic disease which affect the vascular endothelium and blood vessels. Unfortunately, the commercial product contains detergents and surfactants which can provoke several side effects and decrease the efficacy of therapy. In an attempt to overcome these drawbacks, polydocanol foam was mixed with different liposomes before use. The resulting mixture was stable and generated supramolecular nanoconstructs, which may prevent the interaction of the components of the commercial polydocanol foam with the vascular endothelium. This effect depends on the presence of liposomes, which can induce polydocanol foam to change its structure from micelles to complex nanostructures, thus improving its stability. In this attempt, the physicochemical features of the resulting nanoconstructs were tested through dynamic- and multiple light scattering analyses, rheological studies and gel permeation chromatography, while the stability was tested in biological fluids. Our preliminary results showed that the nanoconstructs have some potential as therapeutic agents in sclerotherapy.
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Affiliation(s)
- Felisa Cilurzo
- Department of Pharmacy, University of Chieti - Pescara "G. d'Annunzio", Chieti, Italy
| | | | - Donatella Paolino
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Græcia", Catanzaro, Italy; IRC-FSH-Interregional Research Center for Food Safety & Health, University of Catanzaro "Magna Græcia", Catanzaro, Italy
| | | | - Massimo Fresta
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Catanzaro, Italy; IRC-FSH-Interregional Research Center for Food Safety & Health, University of Catanzaro "Magna Græcia", Catanzaro, Italy
| | - Stefano De Franciscis
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Græcia", Catanzaro, Italy
| | - Christian Celia
- Department of Pharmacy, University of Chieti - Pescara "G. d'Annunzio", Chieti, Italy; Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX, 77030, USA.
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9
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Paul BK, Ghosh N, Mukherjee S. Association and sequestered dissociation of an anticancer drug from liposome membrane: Role of hydrophobic hydration. Colloids Surf B Biointerfaces 2018; 170:36-44. [PMID: 29864652 DOI: 10.1016/j.colsurfb.2018.05.064] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/23/2018] [Accepted: 05/29/2018] [Indexed: 01/31/2023]
Abstract
Herein, the interaction of a potent anticancer drug (Sanguinarine, SG) with dimyristoyl-l-α-phosphatidylglycerol (DMPG) liposome membrane has been investigated at physiological pH. The spectroscopic fluorescence decay results demonstrate a modification of the photophysics of SG within DMPG-encapsulated state leading to preferential stabilization of the iminium ion over the alkanolamine form. This suggests a key role of electrostatic force underlying the interaction. The complex dependence of the thermodynamic parameters on temperature yields a unique finding of a positive heat capacity change (ΔCp) indicating the signature of hydrophobic hydration. The study also demonstrates the application of β-cyclodextrin (βCD) as a prospective host system resulting in release of the DMPG-bound drug. A calorimetric exploration of the DMPG-βCD interaction reveals an intrinsically complex thermodynamics of the process leading to ΔCp > 0 and thus marking the instrumental role of hydrophobic hydration which follows that the DMPG-βCD interaction is accompanied with burial of polar molecular surfaces. A systematic investigation of the diffusion of the drug within various microheterogeneous environments by Fluorescence Correlation Spectroscopy (FCS) categorically reinforces our arguments.
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Affiliation(s)
- Bijan K Paul
- Department of Chemistry, Mahadevananda Mahavidyalaya, Barrackpore, Kolkata 700120, West Bengal, India
| | - Narayani Ghosh
- Department of General Science and Humanities, Modern Institute of Engineering and Technology, Bandel, Kolkata 712123, West Bengal, India
| | - Saptarshi Mukherjee
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India.
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10
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Megarajan S, Subramaniyan SB, Muthuswamy S, Anthony SP, Arunachalam J, Moon D, Veerappan A. Synthesis, supramolecular organization and thermotropic phase behaviour of N-acyltris(hydroxymethyl)aminomethane. RSC Adv 2018; 8:32823-32831. [PMID: 35547689 PMCID: PMC9086375 DOI: 10.1039/c8ra06479b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 09/18/2018] [Indexed: 02/01/2023] Open
Abstract
Herein, we reported the supramolecular organization of N-acyltris(hydroxymethyl)aminomethane (NATM) in the solid state as well as in aqueous solution. Single crystal X-ray diffraction revealed that NATM adopts a fully interdigitized structure. The thermodynamic parameters associated with thermotropic phase behaviour of NATM was determined by differential scanning calorimetry. The molecular packing and phase state of the NATM analyzed by laurdan and prodan fluorescence supports the formation of an interdigitized phase in aqueous solution. The potential application of the self-assembled NATM vesicles was demonstrated through entrapping model drug, Rhodamine B. Self assembly of N-acyltris(hydroxymethyl)aminomethane into interdigitized vesicles.![]()
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Affiliation(s)
- Sengan Megarajan
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur – 613401
- India
| | | | - Sureshan Muthuswamy
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur – 613401
- India
| | | | - Jothi Arunachalam
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur – 613401
- India
| | - Dohyun Moon
- Beamline Department
- Pohang Accelerator Laboratory
- Pohang
- Korea
| | - Anbazhagan Veerappan
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur – 613401
- India
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11
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Morel B, Carrasco MP, Jurado S, Marco C, Conejero-Lara F. Dynamic micellar oligomers of amyloid beta peptides play a crucial role in their aggregation mechanisms. Phys Chem Chem Phys 2018; 20:20597-20614. [DOI: 10.1039/c8cp02685h] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Aβ40 and Aβ42 peptides form micellar precursors of amyloid nuclei contributing to important differences in their aggregation pathways.
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Affiliation(s)
- Bertrand Morel
- Departamento de Química Física e Instituto de Biotecnología
- Facultad de Ciencias
- Universidad de Granada
- 18071 Granada
- Spain
| | - Maria Paz Carrasco
- Departamento de Bioquímica y Biología Molecular I
- Facultad de Ciencias
- Universidad de Granada
- 18071 Granada
- Spain
| | - Samuel Jurado
- Departamento de Química Física e Instituto de Biotecnología
- Facultad de Ciencias
- Universidad de Granada
- 18071 Granada
- Spain
| | - Carmen Marco
- Departamento de Bioquímica y Biología Molecular I
- Facultad de Ciencias
- Universidad de Granada
- 18071 Granada
- Spain
| | - Francisco Conejero-Lara
- Departamento de Química Física e Instituto de Biotecnología
- Facultad de Ciencias
- Universidad de Granada
- 18071 Granada
- Spain
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12
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Ci L, Huang Z, Liu Y, Liu Z, Wei G, Lu W. Amino-functionalized poloxamer 407 with both mucoadhesive and thermosensitive properties: preparation, characterization and application in a vaginal drug delivery system. Acta Pharm Sin B 2017; 7:593-602. [PMID: 28924553 PMCID: PMC5595263 DOI: 10.1016/j.apsb.2017.03.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 02/23/2017] [Accepted: 03/07/2017] [Indexed: 12/21/2022] Open
Abstract
Lack of mucoadhesive properties is the major drawback to poloxamer 407 (F127)-based in situ hydrogels for mucosal administration. The objective of the present study was to construct a novel mucoadhesive and thermosensitive in situ hydrogel drug delivery system based on an amino-functionalized poloxamer for vaginal administration. First, amino-functionalized poloxamer 407 (F127-NH2) was synthesized and characterized with respect to its micellization behavior and interaction with mucin. Then using acetate gossypol (AG) as model drug, AG-loaded F127-NH2-based in situ hydrogels (NFGs) were evaluated with respect to rheology, drug release, ex vivo vaginal mucosal adhesion, in vivo intravaginal retention and local irritation after vaginal administration to healthy female mice. The results show that F127-NH2 is capable of forming a thermosensitive in situ hydrogel with sustained drug release properties. An interaction between positively charged F127-NH2 and negatively charged mucin was revealed by changes in the particle size and zeta potential of mucin particles as well as an increase in the complex modulus of NFG caused by mucin. Ex vivo and in vivo fluorescence imaging and quantitative analysis of the amount of AG remaining in mouse vaginal lavage all demonstrated greater intravaginal retention of NFG than that of an unmodified F127-based in situ hydrogel. In conclusion, amino group functionalization confers valuable mucoadhesive properties on poloxamer 407.
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Key Words
- ACN, anhydrous acetonitrile
- AG, acetate gossypol
- AG-loaded FG, F127 gel-loaded with acetate gossypol
- AG-loaded NFG, F127-NH2 gel-loaded with acetate gossypol
- ANOVA, one-way analysis of variance
- Acetate gossypol
- Amino group
- C6, 6-coumarin
- CDI, carbonyl diimidazole
- CMC, critical micelle concentration
- DAPI, 2-(4-amidinophenyl)-6-indolecarbamindine dihydrochloride
- DLS, dynamic light scattering
- DPH, 1,6-diphenyl-1,3,5-hexatriene
- DTT, dithiothreitol
- DiR, 1,1ʹ-dioctadecyl-3,3,3ʹ,3ʹ-tetramethylindotricarbocyanine iodide
- EDTA, ethylenediamine tetraacetic acid
- EMS, endometriosis
- F127, Pluronic F127
- FG, F127 gel
- FTIR, Fourier transform infrared
- H&E, hematoxylin and eosin
- ICR, Institute of Cancer Research
- In situ hydrogel
- Mucoadhesive gel
- NF, amino-functionalised poloxamer 407
- NFG, aminated poloxamer 407-based temperature sensitive hydrogel
- NMR, nuclear magnetic resonance
- OCT, optical coherence tomography
- PBS, phosphate buffered saline
- PDI, polydispersity index
- PEO, poly(ethylene oxide)
- PGM, porcine gastric mucin
- PPO, poly(propylene oxide)
- Poloxamer 407
- TEM, transmission electron microscopy
- VFS, vaginal fluid stimulant
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Affiliation(s)
- Liqian Ci
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zhigang Huang
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yu Liu
- Department of Pharmaceutics, School of Pharmacy, Fudan University & Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Shanghai 201203, China
| | - Zhepeng Liu
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Gang Wei
- Department of Pharmaceutics, School of Pharmacy, Fudan University & Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Shanghai 201203, China
| | - Weiyue Lu
- Department of Pharmaceutics, School of Pharmacy, Fudan University & Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Shanghai 201203, China
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13
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Wang T, Krieger J, Huang C, Das A, Francis MP, Ogle R, Botchwey E. Enhanced osseous integration of human trabecular allografts following surface modification with bioactive lipids. Drug Deliv Transl Res 2016; 6:96-104. [PMID: 26169381 DOI: 10.1007/s13346-015-0244-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In this study, we used extracellular matrix (ECM) gels and human bone allograft as matrix vehicles to deliver the sphingolipid growth factor FTY720 to rodent models of tibial fracture and a critical-sized cranial defect. We show that FTY720 released from injectable ECM gels may accelerate callous formation and resolution and bone volume in a mouse tibial fracture model. We then show that FTY720 binds directly to human trabecular allograft bone and releases over 1 week in vitro. Rat critical-sized cranial defects treated with FTY720-coated grafts show increases in vascularization and bone deposition, with histological and micro-computed topography (microCT) evidence of enhanced bone formation within the graft and defect void. Immunohistochemical analysis suggests that osteogenesis within FTY720-coated grafts is associated with reduced CD68(+) macrophage infiltration and recruitment of CD29(+) bone progenitor cells. Matrix binding of FTY720 thus represents a promising and robust bone regeneration strategy with potential clinical translatability.
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Affiliation(s)
- Tiffany Wang
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 315 Ferst Drive Rm 1311, Atlanta, GA, 30332, USA
| | - Jack Krieger
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 315 Ferst Drive Rm 1311, Atlanta, GA, 30332, USA
| | - Cynthia Huang
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, 22903, USA
| | - Anusuya Das
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, 22903, USA
| | | | - Roy Ogle
- School of Medical Diagnostic and Translational Science, Old Dominion University, Norfolk, VA, 23529, USA
| | - Edward Botchwey
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 315 Ferst Drive Rm 1311, Atlanta, GA, 30332, USA.
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14
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Nagel M, Brauckmann S, Moegle-Hofacker F, Effenberger-Neidnicht K, Hartmann M, de Groot H, Mayer C. Impact of bacterial endotoxin on the structure of DMPC membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:2271-6. [DOI: 10.1016/j.bbamem.2015.06.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 06/03/2015] [Accepted: 06/07/2015] [Indexed: 12/22/2022]
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15
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Swain J, Kamalraj M, Surya Prakash Rao H, Mishra AK. Effect of a glucose-triazole-hydrogenated cardanol conjugate on lipid bilayer membrane organization and thermotropic phase transition. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.10.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Ogle ME, Sefcik LS, Awojoodu AO, Chiappa NF, Lynch K, Peirce-Cottler S, Botchwey EA. Engineering in vivo gradients of sphingosine-1-phosphate receptor ligands for localized microvascular remodeling and inflammatory cell positioning. Acta Biomater 2014; 10:4704-4714. [PMID: 25128750 PMCID: PMC4529737 DOI: 10.1016/j.actbio.2014.08.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 07/30/2014] [Accepted: 08/06/2014] [Indexed: 12/29/2022]
Abstract
Biomaterial-mediated controlled release of soluble signaling molecules is a tissue engineering approach to spatially control processes of inflammation, microvascular remodeling and host cell recruitment, and to generate biochemical gradients in vivo. Lipid mediators, such as sphingosine 1-phosphate (S1P), are recognized for their essential roles in spatial guidance, signaling and highly regulated endogenous gradients. S1P and pharmacological analogs such as FTY720 are therapeutically attractive targets for their critical roles in the trafficking of cells between blood and tissue spaces, both physiologically and pathophysiologically. However, the interaction of locally delivered sphingolipids with the complex metabolic networks controlling the flux of lipid species in inflamed tissue has yet to be elucidated. In this study, complementary in vitro and in vivo approaches are investigated to identify relationships between polymer composition, drug release kinetics, S1P metabolic activity, signaling gradients and spatial positioning of circulating cells around poly(lactic-co-glycolic acid) biomaterials. Results demonstrate that biomaterial-based gradients of S1P are short-lived in the tissue due to degradation by S1P lyase, an enzyme that irreversibly degrades intracellular S1P. On the other hand, in vivo gradients of the more stable compound, FTY720, enhance microvascular remodeling by selectively recruiting an anti-inflammatory subset of monocytes (S1P3(high)) to the biomaterial. Results highlight the need to better understand the endogenous balance of lipid import/export machinery and lipid kinase/phosphatase activity in order to design biomaterial products that spatially control the innate immune environment to maximize regenerative potential.
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Affiliation(s)
- Molly E. Ogle
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 315 Ferst Drive, Atlanta, GA 30332
| | - Lauren S. Sefcik
- Department of Chemical & Biomolecular Engineering, Lafayette College, 740 High Street, Easton, PA 18042
| | - Anthony O. Awojoodu
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 315 Ferst Drive, Atlanta, GA 30332
| | - Nathan F. Chiappa
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 315 Ferst Drive, Atlanta, GA 30332
| | - Kevin Lynch
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903
| | - Shayn Peirce-Cottler
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22903
| | - Edward A. Botchwey
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 315 Ferst Drive, Atlanta, GA 30332
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22903
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17
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Rajan N, Anver Basha K. Rapid Determination of Fingolimod Hydrochloride-Related Substances and Degradation Products in API and Pharmaceutical Dosage Forms by Use of a Stability-Indicating UPLC Method. Chromatographia 2014. [DOI: 10.1007/s10337-014-2751-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Talukdar D, Panda S, Borah R, Manna D. Membrane Interaction and Protein Kinase C-C1 Domain Binding Properties of 4-Hydroxy-3-(hydroxymethyl) Phenyl Ester Analogues. J Phys Chem B 2014; 118:7541-7553. [PMID: 24936745 DOI: 10.1021/jp5044305] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Protein kinase C (PKC)-C1 domain targeted regulator development is considered as a potential therapeutic strategy for the treatment of cancer and immunological and other diseases. Efforts are underway to synthesize small molecules to achieve higher specificity for the C1-domain than the natural activator, diacylglycerols (DAGs). In this regard, we conveniently synthesized 4-hydroxy-3-(hydroxymethyl) phenyl ester analogues and measured in vitro C1-domain binding properties. We also investigated different physicochemical properties of the synthesized molecules, including aggregation behavior in aqueous solution and interaction with lipid bilayers, and others with an aim for better understanding of their C1-domain binding properties. The results showed that the membrane-active compounds aggregate in aqueous solution at a reasonably lower concentration and strongly interact with the lipid bilayer. The hydrophilic part of the compounds localize at the bilayer/water interface and accessible for C1-domain binding. Biophysical studies revealed that the hydroxyl, hydroxymethyl, and carbonyl groups and acyl chain length are important for their interaction with the C1-domain. The potent compound showed more than 10-fold stronger binding affinity for the C1-domains than DAG under similar experimental conditions. Therefore, our findings reveal that these ester analogues represent an attractive group of C1-domain ligands that can be further structurally modified to improve their binding and activity.
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Affiliation(s)
- Dipjyoti Talukdar
- Department of Chemistry, Indian Institute of Technology , Guwahati, Assam 781039, India
| | - Subhankar Panda
- Department of Chemistry, Indian Institute of Technology , Guwahati, Assam 781039, India
| | - Rituparna Borah
- Department of Chemistry, Indian Institute of Technology , Guwahati, Assam 781039, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology , Guwahati, Assam 781039, India
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19
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Swain J, Borkar SR, Aidhen IS, Mishra AK. A molecular level understanding of interaction between FTY720 (Fingolimod hydrochloride) and DMPC multilamellar vesicles. RSC Adv 2014. [DOI: 10.1039/c4ra02404d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
This work focuses on the molecular level understanding of interaction between FTY720 (Fingolimod hydrochloride) and dimyristoylphosphatidylcholine (DMPC) multilamellar vesicles (MLVs) as a drug molecule carrier by investigating the structural changes, solubilisation effect and thermotropic phase behaviour.
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Affiliation(s)
- Jitendriya Swain
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036, India
| | - Santosh R. Borkar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036, India
| | | | - Ashok Kumar Mishra
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036, India
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20
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Borah R, Talukdar D, Gorai S, Bain D, Manna D. Bilayer interaction and protein kinase C-C1 domain binding studies of kojic acid esters. RSC Adv 2014. [DOI: 10.1039/c4ra02352h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of kojic acid ester analogues and their lipid bilayer interaction and PKC-C1 domain binding properties have been demonstrated in this present work.
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Affiliation(s)
- Rituparna Borah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Dipjyoti Talukdar
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Sukhamoy Gorai
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Dipankar Bain
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
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