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Aleandri S, Rahnfeld L, Chatzikleanthous D, Bergadano A, Bühr C, Detotto C, Fuochi S, Weber-Wilk K, Schürch S, van Hoogevest P, Luciani P. Development and in vivo validation of phospholipid-based depots for the sustained release of bupivacaine. Eur J Pharm Biopharm 2022; 181:300-309. [PMID: 36427675 DOI: 10.1016/j.ejpb.2022.11.019] [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: 10/04/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022]
Abstract
By direct deposition of the drug at the local site of action, injectable depot formulations - intended for treatment of a local disease or for local intervention - are designed to limit the immediate exposure of the active principle at a systemic level and to reduce the frequency of administration. To overcome known drawbacks in the production of some marketed phospholipid-based depots, here we propose to manufacture drug-loaded negatively charged liposomes through conventional technologies and to control their aggregation mixing a solution of divalent cations prior to administration. We identified phosphatidylglycerol (PG) as the most suitable phospholipid for controlled aggregation of the liposomes and to modulate the release of the anesthetic bupivacaine (BUP) from liposomal depots. In vivo imaging of the fluorescently-labelled liposomes showed a significantly higher retention of the PG liposomes at the injection site with respect to zwitterionic ones. In situ mixing of PG liposomes with calcium salts significantly extended the area under the curve of BUP in plasma compared to the non-depot system. Overall, controlling the aggregation of negatively charged liposomes with divalent cations not only modulated the particle clearance from the injection site but also the release in vivo of a small amphipathic drug such as BUP.
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Affiliation(s)
- Simone Aleandri
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Switzerland
| | - Lisa Rahnfeld
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Switzerland; Institute of Pharmacy, Faculty of Biosciences, Friedrich Schiller University, Jena, Germany
| | - Despo Chatzikleanthous
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Switzerland
| | | | - Claudia Bühr
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Switzerland
| | - Carlotta Detotto
- Experimental Animal Center (EAC), University of Bern, Switzerland
| | - Sara Fuochi
- Experimental Animal Center (EAC), University of Bern, Switzerland
| | - Kevin Weber-Wilk
- Experimental Animal Center (EAC), University of Bern, Switzerland
| | - Stefan Schürch
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Switzerland
| | | | - Paola Luciani
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Switzerland; Institute of Pharmacy, Faculty of Biosciences, Friedrich Schiller University, Jena, Germany.
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Imidazole-Based pH-Sensitive Convertible Liposomes for Anticancer Drug Delivery. Pharmaceuticals (Basel) 2022; 15:ph15030306. [PMID: 35337105 PMCID: PMC8949415 DOI: 10.3390/ph15030306] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/22/2022] [Accepted: 02/25/2022] [Indexed: 02/06/2023] Open
Abstract
In efforts to enhance the activity of liposomal drugs against solid tumors, three novel lipids that carry imidazole-based headgroups of incremental basicity were prepared and incorporated into the membrane of PEGylated liposomes containing doxorubicin (DOX) to render pH-sensitive convertible liposomes (ICL). The imidazole lipids were designed to protonate and cluster with negatively charged phosphatidylethanolamine-polyethylene glycol when pH drops from 7.4 to 6.0, thereby triggering ICL in acidic tumor interstitium. Upon the drop of pH, ICL gained more positive surface charges, displayed lipid phase separation in TEM and DSC, and aggregated with cell membrane-mimetic model liposomes. The drop of pH also enhanced DOX release from ICL consisting of one of the imidazole lipids, sn-2-((2,3-dihexadecyloxypropyl)thio)-5-methyl-1H-imidazole. ICL demonstrated superior activities against monolayer cells and several 3D MCS than the analogous PEGylated, pH-insensitive liposomes containing DOX, which serves as a control and clinical benchmark. The presence of cholesterol in ICL enhanced their colloidal stability but diminished their pH-sensitivity. ICL with the most basic imidazole lipid showed the highest activity in monolayer Hela cells; ICL with the imidazole lipid of medium basicity showed the highest anticancer activity in 3D MCS. ICL that balances the needs of tissue penetration, cell-binding, and drug release would yield optimal activity against solid tumors.
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Xu D, Chen X, Chen Z, Lv Y, Li Y, Li S, Xu W, Mo Y, Wang X, Chen Z, Chen T, Wang T, Wang Z, Wu M, Wang J. An in Silico Approach to Reveal the Nanodisc Formulation of Doxorubicin. Front Bioeng Biotechnol 2022; 10:859255. [PMID: 35284419 PMCID: PMC8914043 DOI: 10.3389/fbioe.2022.859255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 02/08/2022] [Indexed: 01/12/2023] Open
Abstract
Molecular dynamic behaviors of nanodisc (ND) formulations of free doxorubicin (DOX) and DOX conjugated lipid prodrug molecules were investigated by molecular dynamics (MD) simulations. We have unveiled how formulation design affects the drug release profile and conformational stability of ND assemblies. Our simulation results indicate that free DOX molecules loaded in the ND system experienced rapid dissociation due to the unfavorable orientation of DOX attached to the lipid surface. It is found that DOX tends to form aggregates with higher drug quantities. In contrast, lipidated DOX-prodrugs incorporated in ND formulations exhibited sufficient ND conformational stability. The drug loading capacity is dependent on the type of lipid molecules grafted on the DOX-prodrug, and the drug loading quantities in a fixed area of NDs follow the order: DOX-BMPH-MP > DOX-BMPH-TC > DOX-BMPH-PTE. To gain further insight into the dynamic characteristics of ND formulations governed by different kinds of lipidation, we investigated the conformational variation of ND components, intermolecular interactions, the solvent accessible surface area, and individual MSP1 residue flexibility. We found that the global conformational stability of DOX-prodrug-loaded ND assemblies is influenced by the molecular flexibility and lipidated forms of DOX-prodrug. We also found that the spontaneous self-aggregation of DOX-prodrugs with increasing quantities on ND could reduce the membrane fluidity and enhance the conformational stability of ND formulations.
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Affiliation(s)
- Daiyun Xu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Xu Chen
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Zhidong Chen
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Yonghui Lv
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Yongxiao Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Shengbin Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Wanting Xu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Yuan Mo
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Xinpei Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Zirui Chen
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Tingyi Chen
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Tianqi Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Zhe Wang
- Department of Pathology, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
- *Correspondence: Zhe Wang, ; Meiying Wu, ; Junqing Wang,
| | - Meiying Wu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
- *Correspondence: Zhe Wang, ; Meiying Wu, ; Junqing Wang,
| | - Junqing Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
- *Correspondence: Zhe Wang, ; Meiying Wu, ; Junqing Wang,
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Gkionis L, Aojula H, Harris LK, Tirella A. Microfluidic-assisted fabrication of phosphatidylcholine-based liposomes for controlled drug delivery of chemotherapeutics. Int J Pharm 2021; 604:120711. [PMID: 34015381 DOI: 10.1016/j.ijpharm.2021.120711] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 01/04/2023]
Abstract
Microfluidic enables precise control over the continuous mixing of fluid phases at the micrometre scale, aiming to optimize the processing parameters and to facilitate scale-up feasibility. The optimization of parameters to obtain monodispersed drug-loaded liposomes however is challenging. In this work, two phosphatidylcholines (PC) differing in acyl chain length were selected, and used to control the release of the chemotherapeutic agent doxorubicin hydrochloride, an effective drug used to treat breast cancer. Microfluidics was used to rapidly screen manufacturing parameters and PC formulations to obtain monodispersed unilamellar liposomal formulations with a reproducible size (i.e. < 200 nm). Cholesterol was included in all liposomal formulations; some formulations also contained DMPC(1,2-dimyristoyl-sn-glycero-3-phosphocholine) and/or DSPC(1,2-distearoyl-sn-glycero-3-phosphocholine). Systematic variations in microfluidics total flow rate (TFR) settings were performed, while keeping a constant flow rate ratio (FRR). A total of six PC-based liposomes were fabricated using the optimal manufacturing parameters (TFR 500 μL/min, FRR 0.1) for the production of reproducible, stable liposome formulations with a narrow size distribution. Liposomes actively encapsulating doxorubicin exhibited high encapsulation efficiencies (>80%) for most of the six formulations, and sustained drug release profiles in vitro over 48 h. Drug release profiles varied as a function of the DMPC/DSPC mol content in the lipid bilayer, with DMPC-based liposomes exhibiting a sustained release of doxorubicin when compared to DSPC liposomes. The PC-based liposomes, with a slower release of doxorubicin, were tested in vitro, as to investigate their cytotoxic activity against three human breast cancer cell lines: the non-metastatic ER+/PR + MCF7 cells, the triple-negative aggressive MDA-MB 231 cells, and the metastatic HER2-overexpressing/PR + BT474 cells. Similar cytotoxicity levels to that of free doxorubicin were reported for DMPC5 and DMPC3 binary liposomes (IC50 ~ 1 μM), whereas liposomes composed of a single PC were less cytotoxic (IC50 ~ 3-4 μM). These results highlight that microfluidics is suitable for the manufacture of monodispersed and size-specific PC-based liposomes in a controlled single-step; furthermore, selected PC-based liposome represent promising nanomedicines for the prolonged release of chemotherapeutics, with the aim of improving outcomes for patients.
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Affiliation(s)
- Leonidas Gkionis
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Harmesh Aojula
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Lynda K Harris
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PL, United Kingdom; Maternal and Fetal Health Research Centre, Division of Developmental Biology and Medicine, Faculty of Biology, Medicine and Health, University of Manchester, 5th floor (Research), St Mary's Hospital, Oxford Road, Manchester M13 9WL, UK; St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester M13 9WL, UK
| | - Annalisa Tirella
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PL, United Kingdom.
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Regenold M, Steigenberger J, Siniscalchi E, Dunne M, Casettari L, Heerklotz H, Allen C. Determining critical parameters that influence in vitro performance characteristics of a thermosensitive liposome formulation of vinorelbine. J Control Release 2020; 328:551-561. [DOI: 10.1016/j.jconrel.2020.08.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 08/26/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023]
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Gardikis K, Hatziantoniou S, Signorelli M, Pusceddu M, Micha-Screttas M, Schiraldi A, Demetzos C, Fessas D. Thermodynamic and structural characterization of Liposomal-Locked in-Dendrimers as drug carriers. Colloids Surf B Biointerfaces 2010; 81:11-9. [DOI: 10.1016/j.colsurfb.2010.06.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Revised: 06/16/2010] [Accepted: 06/16/2010] [Indexed: 10/19/2022]
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Gardikis K, Hatziantoniou S, Bucos M, Fessas D, Signorelli M, Felekis T, Zervou M, Screttas CG, Steele BR, Ionov M, Micha-Screttas M, Klajnert B, Bryszewska M, Demetzos C. New Drug Delivery Nanosystem Combining Liposomal and Dendrimeric Technology (Liposomal Locked-In Dendrimers) for Cancer Therapy. J Pharm Sci 2010; 99:3561-71. [DOI: 10.1002/jps.22121] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Anada T, Takeda Y, Honda Y, Sakurai K, Suzuki O. Synthesis of calcium phosphate-binding liposome for drug delivery. Bioorg Med Chem Lett 2009; 19:4148-50. [DOI: 10.1016/j.bmcl.2009.05.117] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2009] [Revised: 05/13/2009] [Accepted: 05/29/2009] [Indexed: 10/20/2022]
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Dékány G, Csóka I, Erös I. Interaction Between Liposomes and Neutral Polymers: Effect of Adsorption on Drug Release. J DISPER SCI TECHNOL 2001. [DOI: 10.1081/dis-100107855] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Stensrud G, Sande SA, Kristensen S, Smistad G. Formulation and characterisation of primaquine loaded liposomes prepared by a pH gradient using experimental design. Int J Pharm 2000; 198:213-28. [PMID: 10767570 DOI: 10.1016/s0378-5173(00)00338-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The effect of different formulation factors (lipid type, cholesterol, charge, internal buffer capacity, drug-to-lipid incubation ratio) on the encapsulation efficiency and size of primaquine liposomes (SUV's) in response to a pH gradient was investigated by a fractional factorial screen ing design. Three of the factors (charge, internal buffer capacity, drug -to-lipid incubation ratio) were further studied in a Box--Behnken optimisation design. The lipid type was the most important parameter followed by the drug-to-lipid incubation ratio, buffer capacity, cholesterol and charge. Several of the interactions wer e important. In the optimisation design a robust region with high encapsulation efficiency (>95%) was obtained for DSPC: 33.33 mol% cholesterol-liposomes at high internal citrate concentration (200 mM) by maintaining the drug-to-lipid incubation ratio below 0.15:1 (mol:mol) and varying the charge incorporation between 2 and 10%. In order to achieve long-term stability and sterility, the liposomes were lyophilised followed by gamma irradiation. The pH gradient was maintained during this treatment with little chemical degradation of the substances. The final preparation consisted of three separate vials with lyophilised liposomes, solid state primaquine and hydration medium.
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Affiliation(s)
- G Stensrud
- Department of Pharmaceutics, School of Pharmacy, University of Oslo, PO Box 1068, Blindern, N-0316, Oslo, Norway.
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