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Katawale S, Tank S, Dhaygude H, Holm R, Shah S, Shinde U, Shidhaye S, Aswal V, Kumar S, Nagarsenker M. Impact of formulation parameters on self-assembled liposomes (LeciPlex® III): A detailed investigation. Int J Pharm 2024; 657:124147. [PMID: 38657715 DOI: 10.1016/j.ijpharm.2024.124147] [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: 01/30/2024] [Revised: 03/30/2024] [Accepted: 04/21/2024] [Indexed: 04/26/2024]
Abstract
The present study investigated the feasibility of fabricating self-assembled liposomes, LeciPlex®, a phospholipid-based vesicular nanocarrier using cationic, anionic, and nonionic stabilizers. The phospholipid investigated was soy phosphatidylcholine and the nano-precipitation method based on solvent diffusion was applied as the fabrication technique of liposomes in this study. The effects of various formulation variables, such as lipid and stabilizer concentration, total solid concentration, and solvent type on the self-assembly of vesicles were studied for physical characterization including particle size analysis, differential scanning calorimetry, viscosity, optical transmittance, transmission electron microscopy, and small angle neutron scattering. All three LeciPlex® systems exhibited a direct relationship between particle size and phospholipid concentration. The two categoric variables, solvent, and stabilizer used to prepare LeciPlex® demonstrated a significant effect on particle size for all three LeciPlex® systems. Small angle neutron scattering, and optical transmittance confirmed the formation of micellar systems at a phospholipid: stabilizer ratio of 1:2 and vesicular systems at a ratio of 2:1 for the systems stabilized with anionic and nonionic surfactants. In contrast to this, the LeciPlex® formed with the cationic stabilizer Dioctadecyldimethylammonium bromide (DODAB), formed vesicles at both ratios. From these investigations, it was clear that the formulation space for LeciPlex® was diversified by the addition of cationic, anionic, and non-ionic stabilizers.
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Affiliation(s)
- Saurabh Katawale
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz, Mumbai 400 098, India
| | - Shivali Tank
- Department of Pharmaceutics, VES College of Pharmacy, Chembur, Mumbai 400 074, India
| | - Harshali Dhaygude
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz, Mumbai 400 098, India
| | - René Holm
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55 5230, Odense, Denmark
| | - Sanket Shah
- Therapeutics Development and Supply, Janssen Pharmaceutica NV, A Johnson & Johnson Company, Turnhoutseweg 30 2340, Beerse, Belgium
| | - Ujwala Shinde
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz, Mumbai 400 098, India
| | - Supriya Shidhaye
- Department of Pharmaceutics, VES College of Pharmacy, Chembur, Mumbai 400 074, India
| | - Vinod Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; Homi Bhabha National Institute, Mumbai 400 094, India
| | - Sugam Kumar
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; Homi Bhabha National Institute, Mumbai 400 094, India
| | - Mangal Nagarsenker
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz, Mumbai 400 098, India; Department of Pharmaceutics, VES College of Pharmacy, Chembur, Mumbai 400 074, India.
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2
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Speer D, Ho JCS, Parikh AN. Surfactant-Mediated Solubilization of Myelin Figures: A Multistep Morphological Cascade. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8805-8816. [PMID: 35816731 PMCID: PMC9979658 DOI: 10.1021/acs.langmuir.2c00774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Lamellar mesophases of insoluble lipids are readily solubilized by the micellar mesophases of soluble surfactants. This simple process underscores a broad array of biochemical methodologies, including purification, reconstitution, and crystallization of membrane proteins, as well as the isolation of detergent-resistant membrane fractions. Although much is now known about the thermodynamic driving forces of membrane solubilization, the kinetic pathways by which the surfactant alters vesicular mesophases are only beginning to be appreciated. Little is known about how these interactions affect the solubilization of more complex, multilamellar mesophases. Here, we investigate how a common zwitterionic detergent affects the solubilization of a smectic, multilamellar, cylindrical mesophase of lipids, called the myelin figure. Our results reveal that myelin solubilization occurs in a multistep manner, producing a well-defined sequence of morphologically distinct intermediates en route to complete solubilization. The kinetic processes producing these intermediates include (1) coiling, which encompasses the formation, propagation, and tightening of extended helices; (2) thinning, which reflects the unbinding of lamellae in the smectic stacks; and (3) detachment or retraction, which either dissociates the myelinic protrusion from the source lipid mass or returns the myelinic protrusion to the source lipid mass─all in transit toward complete solubilization. These occasionally overlapping steps are most pronounced in single-lipid component myelins, while compositionally graded multicomponent myelins inhibit the coiling step and detach more frequently. Taken together, the appearance of these intermediates during the solubilization of myelins suggests a complex free-energy landscape characterizing myelin solubilization populated by metastable, morphological intermediates correlated with locally minimized changes in energy dependent upon the mesophase's composition. This then predicts the accessibility of structurally distinct, kinetic intermediates─such as loose and tight coiled helices, peeled myelins, retracted tubes, and detached protrusions─before reaching the stable ground state corresponding to a dissolved suspension of mixed surfactant-lipid micelles.
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Affiliation(s)
- Daniel
J. Speer
- Chemistry
Graduate Group, University of California,
Davis, One Shields Avenue, Davis, California 95616, United States
| | - James C. S. Ho
- Singapore
Centre for Environmental Life Sciences Engineering, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Atul N. Parikh
- Chemistry
Graduate Group, University of California,
Davis, One Shields Avenue, Davis, California 95616, United States
- Singapore
Centre for Environmental Life Sciences Engineering, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
- Department
of Biomedical Engineering, University of
California, Davis, One Shields Avenue, Davis, California 95616, United States
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Dresser L, Graham SP, Miller LM, Schaefer C, Conteduca D, Johnson S, Leake MC, Quinn SD. Tween-20 Induces the Structural Remodeling of Single Lipid Vesicles. J Phys Chem Lett 2022; 13:5341-5350. [PMID: 35678387 PMCID: PMC9208007 DOI: 10.1021/acs.jpclett.2c00704] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/31/2022] [Indexed: 05/04/2023]
Abstract
The solubilization of lipid membranes by Tween-20 is crucial for a number of biotechnological applications, but the mechanistic details remain elusive. Evidence from ensemble assays supports a solubilization model that encompasses surfactant association with the membrane and the release of mixed micelles to solution, but whether this process also involves intermediate transitions between regimes is unanswered. In search of mechanistic origins, increasing focus is placed on identifying Tween-20 interactions with controllable membrane mimetics. Here, we employed ultrasensitive biosensing approaches, including single-vesicle spectroscopy based on fluorescence and energy transfer from membrane-encapsulated molecules, to interrogate interactions between Tween-20 and submicrometer-sized vesicles below the optical diffraction limit. We discovered that Tween-20, even at concentrations below the critical micellar concentration, triggers stepwise and phase-dependent structural remodeling events, including permeabilization and swelling, in both freely diffusing and surface-tethered vesicles, highlighting the substantial impact the surfactant has on vesicle conformation and stability prior to lysis.
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Affiliation(s)
- Lara Dresser
- Department
of Physics, University of York, York YO10 5DD, U.K.
| | - Sarah P. Graham
- Department
of Physics, University of York, York YO10 5DD, U.K.
| | - Lisa M. Miller
- Department
of Electronic Engineering, University of
York, York YO10 5DD, U.K.
| | | | | | - Steven Johnson
- Department
of Electronic Engineering, University of
York, York YO10 5DD, U.K.
- York
Biomedical Research Institute, University
of York, York YO10 5DD, U.K.
| | - Mark C. Leake
- Department
of Physics, University of York, York YO10 5DD, U.K.
- Department
of Biology, University of York, York YO10 5DD, U.K.
- York
Biomedical Research Institute, University
of York, York YO10 5DD, U.K.
| | - Steven D. Quinn
- Department
of Physics, University of York, York YO10 5DD, U.K.
- York
Biomedical Research Institute, University
of York, York YO10 5DD, U.K.
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Unveiling the mono-rhamnolipid and di-rhamnolipid mechanisms of action upon plasma membrane models. J Colloid Interface Sci 2022; 624:579-592. [DOI: 10.1016/j.jcis.2022.05.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/18/2022]
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Imran A, Popescu D, Movileanu L. Cyclic Activity of an Osmotically Stressed Liposome in a Finite Hypotonic Environment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3659-3666. [PMID: 32186881 PMCID: PMC7147966 DOI: 10.1021/acs.langmuir.9b03923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A lipid vesicle, or simply called a liposome, represents a synthetic compartment for the examination of transmembrane transport and signaling phenomena. Yet, a liposome is always subjected to size and shape fluctuations due to local and global imbalance of internal and external osmotic pressures. Here, we show that an osmotically stressed liposome placed within a hypotonic spherical bath undergoes cyclic dynamics described by a periodic sequence of swelling and relaxation phases. These two phases are interfaced by the appearance of a transient transmembrane pore through which chemical delivery occurs. An analytical model was formulated for the recurrent differential equations that convey the time-dependent swelling phase of a pulsatory liposome during individual cycles. We demonstrate that the time-dependent swelling phases of the last several cycles of a pulsatory liposome are strongly dependent on the size of the external bath. Furthermore, decreasing the size of the hypotonic medium reduces the number of cycles of a pulsatory liposome. Comparisons and contrasts of an infinite hypotonic bath with finite external baths of varying radii are discussed.
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Affiliation(s)
- Ali Imran
- Department of Physics, Syracuse University, 201 Physics Building, Syracuse, New York 13244-1130, USA
| | - Dumitru Popescu
- Department of Mathematical Modelling in Life Sciences, Institute of Mathematical Statistics and Applied Mathematics, Calea 13 Septembrie, nr.13, Bucharest Romania
| | - Liviu Movileanu
- Department of Physics, Syracuse University, 201 Physics Building, Syracuse, New York 13244-1130, USA
- Department of Biomedical and Chemical Engineering, Syracuse University, 329 Link Hall, Syracuse, New York 13244, USA
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Kuznetsova DA, Gabdrakhmanov DR, Ahtamyanova LR, Lukashenko SS, Kusova AM, Zuev YF, Voloshina AD, Sapunova AS, Kulik NV, Kuznetsov DM, Nizameev IR, Kadirov MK, Zakharova LY. Novel self-assembling systems based on imidazolium amphiphiles with cleavable urethane fragment for construction of soft nanocontainers for biomedicine application. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111961] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Bour A, Kruglik SG, Chabanon M, Rangamani P, Puff N, Bonneau S. Lipid Unsaturation Properties Govern the Sensitivity of Membranes to Photoinduced Oxidative Stress. Biophys J 2019; 116:910-920. [PMID: 30777304 DOI: 10.1016/j.bpj.2019.01.033] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 12/11/2022] Open
Abstract
Unsaturated lipid oxidation is a fundamental process involved in different aspects of cellular bioenergetics; dysregulation of lipid oxidation is often associated with cell aging and death. To study how lipid oxidation affects membrane biophysics, we used a chlorin photosensitizer to oxidize vesicles of various lipid compositions and degrees of unsaturation in a controlled manner. We observed different shape transitions that can be interpreted as an increase in the area of the targeted membrane followed by a decrease. These area modifications induced by the chemical modification of the membrane upon oxidation were followed in situ by Raman tweezers microspectroscopy. We found that the membrane area increase corresponds to the lipids' peroxidation and is initiated by the delocalization of the targeted double bonds in the tails of the lipids. The subsequent decrease of membrane area can be explained by the formation of cleaved secondary products. As a result of these area changes, we observe vesicle permeabilization after a time lag that is characterized in relation with the level of unsaturation. The evolution of photosensitized vesicle radius was measured and yields an estimation of the mechanical changes of the membrane over oxidation time. The membrane is both weakened and permeabilized by the oxidation. Interestingly, the effect of unsaturation level on the dynamics of vesicles undergoing photooxidation is not trivial and thus carefully discussed. Our findings shed light on the fundamental dynamic mechanisms underlying the oxidation of lipid membranes and highlight the role of unsaturations on their physical and chemical properties.
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Affiliation(s)
- Aurélien Bour
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Laboratoire Jean Perrin, Paris, France
| | - Sergei G Kruglik
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Laboratoire Jean Perrin, Paris, France
| | - Morgan Chabanon
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California
| | - Padmini Rangamani
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California
| | - Nicolas Puff
- Sorbonne Université, Faculté des Sciences et Ingénierie, UFR 925, Paris, France; University Paris Diderot, Sorbonne Paris Cité, CNRS, Laboratoire Matière et Systèmes Complexes, UMR 7057, Paris, France
| | - Stephanie Bonneau
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Laboratoire Jean Perrin, Paris, France.
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