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Giuffrida MC, Pignatello R, Castelli F, Sarpietro MG. Amphiphilic naproxen prodrugs: differential scanning calorimetry study on their interaction with phospholipid bilayers†. J Pharm Pharmacol 2017. [DOI: 10.1111/jphp.12754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Abstract
Objectives
Naproxen, a nonsteroid anti-inflammatory drug studied for Alzheimer's disease, was conjugated with lipoamino acids (LAA) directly or through a diethylamine (EDA) spacer to improve the drug lipophilicity and the interaction with phospholipid bilayers.
Methods
The interaction of naproxen and its prodrugs with biomembrane models consisting of dimyristoylphosphatidylcholine multilamellar vesicles was studied by differential scanning calorimetry. The transfer of prodrugs from a lipophilic carrier to a biomembrane model was also studied.
Key findings
Naproxen conjugation to lipoamino acids improves its interaction with biomembrane models and affects the transfer from a lipophilic carrier to biomembrane model. LAA portion may localize between the phospholipid chains; the entity of the interaction depends not only on the presence of the spacer but also on the LAA chain length.
Conclusions
Variation of LAA portion can modulate the naproxen prodrugs affinity towards the biological membrane as well as towards the lipophilic carrier.
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Affiliation(s)
| | - Rosario Pignatello
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Catania, Italy
| | - Francesco Castelli
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Catania, Italy
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2
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Pignatello R, Impallomeni G, Pistarà V, Cupri S, Graziano ACE, Cardile V, Ballistreri A. New amphiphilic derivatives of poly(ethylene glycol) (PEG) as surface modifiers of colloidal drug carriers. III. Lipoamino acid conjugates with carboxy- and amino-PEG(5000) polymers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 46:470-81. [PMID: 25492012 DOI: 10.1016/j.msec.2014.10.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 09/15/2014] [Accepted: 10/21/2014] [Indexed: 11/26/2022]
Abstract
Within a research directed to developing new polymeric materials, suitable for decorating the surface of colloidal drug carriers, PEG5000 polymers containing a free carboxyl or amine group at one end were conjugated to an α-lipoamino moiety (LAA). The conjugates were characterized by FT-IR, (1)H-NMR, and MALDI-TOF mass spectrometry. They showed the same profile of solubility as the parent PEGs in water and in some polar and apolar solvents of pharmaceutical use. Representative terms showed to be well tolerated when incubated with Caco-2 or L929 cell cultures. Dedicated differential scanning calorimetry (DSC) studies were performed to prove the interaction of increasing molar fractions of the PEG5000-LAA conjugates with dipalmitoylphosphatidylcholine (DPPC) bilayers, to gain information about their possible incorporation in drug nanocarriers. While the parent PEGs affected only the superficial structure of bilayers, the amphiphilic PEG-LAA conjugates induced a perturbing effect on the thermotropic behavior of DPPC liposomes, according to the structure of the linked LAA residue. A molar concentration of these PEG-LAA between 5 and 10% was individuated as the most suitable to produce stable vesicles.
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Affiliation(s)
- Rosario Pignatello
- Sezione di Tecnologia Farmaceutica, Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Catania, Italy.
| | - Giuseppe Impallomeni
- Istituto per i Polimeri, Compositi e Biomateriali, Consiglio Nazionale delle Ricerche, Catania, Italy
| | - Venerando Pistarà
- Sezione di Tecnologia Farmaceutica, Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Catania, Italy
| | - Sarha Cupri
- Sezione di Tecnologia Farmaceutica, Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Catania, Italy
| | - Adriana C E Graziano
- Sezione di Fisiologia, Dipartimento di Scienze Bio-mediche, Università degli Studi di Catania, Catania, Italy
| | - Venera Cardile
- Sezione di Fisiologia, Dipartimento di Scienze Bio-mediche, Università degli Studi di Catania, Catania, Italy
| | - Alberto Ballistreri
- Sezione di Tecnologia Farmaceutica, Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Catania, Italy
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Pignatello R, Leonardi A, Petronio GP, Ruozi B, Puglisi G, Furneri PM. Preparation and Microbiological Evaluation of Amphiphilic Kanamycin-Lipoamino Acid Ion-Pairs. Antibiotics (Basel) 2014; 3:216-32. [PMID: 27025745 PMCID: PMC4790386 DOI: 10.3390/antibiotics3020216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/29/2014] [Accepted: 05/14/2014] [Indexed: 11/19/2022] Open
Abstract
Amphiphilic ion-pairs of kanamycin (KAN) were prepared by evaporation of a water-ethanol co-solution of KAN base and a lipoamino acid bearing a 12-carbon atoms alkyl side chain (LAA12), at different molar ratios. Infrared spectroscopy confirmed the structure of ion-pairs, while differential scanning calorimetry (DSC) and powder X-ray diffractometry (PXRD) studies supported the formation of new saline species with a different crystalline structure than the starting components. The solubility pattern shown in a range of both aqueous and organic solvents confirmed that the ion-pairs possess an amphiphilic character. The LAA12 counter-ion showed not to improve the antibacterial activity of KAN, suggesting that such chemical strategy is not able to favor the penetration of this drug inside the bacteria cells. Nevertheless, a slight improving, i.e., a one-fold dilution, was observed in E. coli. The present study can also serve as the basis for a further evaluation of LAA ion-pairing of antibiotics, as a means to improve the loading of hydrophilic drugs into lipid-based nanocarriers.
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Affiliation(s)
- Rosario Pignatello
- Department of Drug Sciences, University of Catania, Città Universitaria, viale A. Doria 6, I-95125 Catania, Italy.
- NANO-i, Research Centre for Ocular Nanotechnology, Department of Drug Sciences, University of Catania, viale A. Doria 6, I-95125 Catania, Italy.
| | - Antonio Leonardi
- Department of Drug Sciences, University of Catania, Città Universitaria, viale A. Doria 6, I-95125 Catania, Italy.
| | - Giulio Petronio Petronio
- Department of Biomedical Sciences, University of Catania, via Androne 83, I-95124 Catania, Italy.
- IRCCS San Raffaele Pisana, Via della Pisana 235, I-00163 Roma, Italy.
| | - Barbara Ruozi
- Pharmaceutical Technology, Te.Far.T.I. group, Department of Life Sciences, University of Modena and Reggio Emilia, via Campi 183, I-41100 Modena, Italy.
| | - Giovanni Puglisi
- Department of Drug Sciences, University of Catania, Città Universitaria, viale A. Doria 6, I-95125 Catania, Italy.
- NANO-i, Research Centre for Ocular Nanotechnology, Department of Drug Sciences, University of Catania, viale A. Doria 6, I-95125 Catania, Italy.
| | - Pio Maria Furneri
- Department of Biomedical Sciences, University of Catania, via Androne 83, I-95124 Catania, Italy.
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Pignatello R, Leonardi A, Pellitteri R, Carbone C, Caggia S, Graziano ACE, Cardile V. Evaluation of new amphiphilic PEG derivatives for preparing stealth lipid nanoparticles. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.05.059] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pignatello R, Pantò V, Basile L, Leonardi A, Guarino C, La Rosa C. Characterization of micellar systems produced by new amphiphilic conjugates of poly(ethylene glycol). Drug Dev Ind Pharm 2013; 40:1463-7. [DOI: 10.3109/03639045.2013.828226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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6
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Filipe HAL, Coreta-Gomes FM, Velazquez-Campoy A, Almeida AR, Peixoto AF, Pereira MM, Vaz WLC, Moreno MJ. Synthesis and Characterization of a Lipidic Alpha Amino Acid: Solubility and Interaction with Serum Albumin and Lipid Bilayers. J Phys Chem B 2013; 117:3439-48. [DOI: 10.1021/jp307874v] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hugo A. L. Filipe
- Departamento de
Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
| | | | - Adrian Velazquez-Campoy
- Institute of Biocomputation
and Physics of Complex Systems (BIFI), Universidad de Zaragoza, Unidad Asociada BIFI-IQFR, CSIC, Zaragoza,
Spain
- Fundación ARAID, Diputación General de Aragón, Spain
| | - Ana R. Almeida
- Departamento de
Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
| | - Andreia F. Peixoto
- Departamento de
Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
| | - Mariette M. Pereira
- Departamento de
Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
| | - Winchil L. C. Vaz
- Departamento de
Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
| | - Maria J. Moreno
- Departamento de
Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
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Pénzes C, Schnöller D, Horváti K, Bősze S, Mező G, Kiss É. Membrane affinity of antituberculotic drug conjugate using lipid monolayer containing mycolic acid. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Serum-stable, long-circulating paclitaxel-loaded colloidal carriers decorated with a new amphiphilic PEG derivative. Int J Pharm 2012; 426:231-238. [DOI: 10.1016/j.ijpharm.2012.01.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 01/08/2012] [Accepted: 01/14/2012] [Indexed: 11/20/2022]
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9
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Micieli D, Giuffrida MC, Pignatello R, Castelli F, Sarpietro MG. Interaction of naproxen amphiphilic derivatives with biomembrane models evaluated by differential scanning calorimetry and Langmuir–Blodgett studies. J Colloid Interface Sci 2011; 360:359-69. [DOI: 10.1016/j.jcis.2011.04.092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 04/22/2011] [Accepted: 04/23/2011] [Indexed: 10/18/2022]
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10
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Pignatello R, Musumeci T, Basile L, Carbone C, Puglisi G. Biomembrane models and drug-biomembrane interaction studies: Involvement in drug design and development. J Pharm Bioallied Sci 2011; 3:4-14. [PMID: 21430952 PMCID: PMC3053521 DOI: 10.4103/0975-7406.76461] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 09/18/2010] [Accepted: 12/11/2010] [Indexed: 12/19/2022] Open
Abstract
Contact with many different biological membranes goes along the destiny of a drug after its systemic administration. From the circulating macrophage cells to the vessel endothelium, to more complex absorption barriers, the interaction of a biomolecule with these membranes largely affects its rate and time of biodistribution in the body and at the target sites. Therefore, investigating the phenomena occurring on the cell membranes, as well as their different interaction with drugs in the physiological or pathological conditions, is important to exploit the molecular basis of many diseases and to identify new potential therapeutic strategies. Of course, the complexity of the structure and functions of biological and cell membranes, has pushed researchers toward the proposition and validation of simpler two- and three-dimensional membrane models, whose utility and drawbacks will be discussed. This review also describes the analytical methods used to look at the interactions among bioactive compounds with biological membrane models, with a particular accent on the calorimetric techniques. These studies can be considered as a powerful tool for medicinal chemistry and pharmaceutical technology, in the steps of designing new drugs and optimizing the activity and safety profile of compounds already used in the therapy.
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Affiliation(s)
- R Pignatello
- Department of Drug Sciences, University of Catania, viale A. Doria, 6 - 95125 Catania, Italy
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11
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Pignatello R, Mangiafico A, Ruozi B, Puglisi G, Furneri PM. Amphiphilic erythromycin-lipoamino acid ion pairs: characterization and in vitro microbiological evaluation. AAPS PharmSciTech 2011; 12:468-75. [PMID: 21479751 PMCID: PMC3134655 DOI: 10.1208/s12249-011-9605-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2009] [Accepted: 03/12/2011] [Indexed: 11/30/2022] Open
Abstract
A series of amphiphilic ion pairs of erythromycin (ERY) with lipoamino acids (LAAs) were produced. The ion pairs were prepared by evaporation of a water/ethanol co-solution of the drug and LAA bearing an alkyl side chain of 10-16 carbon atoms. For the sake of comparison, equimolar physical mixtures were prepared by triturating ERY and the LAA in the absence of any solvent. FTIR spectroscopy confirmed the structure of ion pairs, while differential scanning calorimetry and powder X-ray diffractometry were used to assess the formation of new saline species. The solubility pattern of the coevaporates in different aqueous and organic solvents confirmed their amphiphilic properties. ERY-LAA ion pairs were submitted to an in vitro microbiological assay against different bacterial strains, both susceptible and resistant to macrolides. The presence of the LAA moiety was shown not altering the antibacterial spectrum of activity of the drug. These results can be the basis for a further evaluation of ERY-LAA ion pairs as a mean to improve the penetration of the drug inside bacterial cells and to optimize the loading of ERY in lipid-based nanocarriers.
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Affiliation(s)
- Rosario Pignatello
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Città Universitaria, Italy.
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12
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Pignatello R, Mangiafico A, Basile L, Ruozi B, Furneri PM. Amphiphilic ion pairs of tobramycin with lipoamino acids. Eur J Med Chem 2011; 46:1665-71. [PMID: 21396748 DOI: 10.1016/j.ejmech.2011.02.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2010] [Revised: 01/11/2011] [Accepted: 02/11/2011] [Indexed: 10/18/2022]
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13
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Zara S, Di Stefano A, Nasuti C, Rapino M, Patruno A, Pesce M, Sozio P, Cerasa LS, Cataldi A. NOS-mediated morphological and molecular modifications in rats infused with Aβ (1-40), as a model of Alzheimer's disease, in response to a new lipophilic molecular combination codrug-1. Exp Gerontol 2011; 46:273-81. [DOI: 10.1016/j.exger.2010.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 09/24/2010] [Accepted: 11/02/2010] [Indexed: 11/30/2022]
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14
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Pignatello R, Vicari L, Pistarà V, Musumeci T, Gulisano M, Puglisi G. Synthesis and in vitro cytotoxic activity on human anaplastic thyroid cancer cells of lipoamino acid conjugates of gemcitabine. Drug Dev Res 2010. [DOI: 10.1002/ddr.20374] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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15
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Pignatello R, Pantò V, Basile L, Impallomeni G, Ballistreri A, Pistarà V, Craparo EF, Puglisi G. New Amphiphilic Conjugates of Mono- and Bis(carboxy)-PEG2,000 Polymers with Lipoamino Acids as Surface Modifiers of Colloidal Drug Carriers. MACROMOL CHEM PHYS 2010. [DOI: 10.1002/macp.200900632] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Pignatello R, Maltese A, Maugeri F, Bucolo C. Enhancement of availability of cloricromene at brain level by a lipophilic prodrug. J Pharm Pharmacol 2010; 58:1001-5. [PMID: 16805962 DOI: 10.1211/jpp.58.7.0017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
The pharmacokinetics of a lipophilic alkylamino acid (LAA) prodrug of cloricromene (AD6), namely CLOR-C4, was studied in rat plasma and brain. In particular, we observed that the intraperitoneal administration of CLOR-C4 to rats was able to provide a slight but statistically significant higher concentration of the active drug metabolite (cloricromene acid) in the brain compared with the parent drug administered by the same way. The correlation between pharmacokinetic data and calculated partition (LogP) and brain distribution coefficients (LogBB) supported the hypothesis that the amphiphilic nature of the LAA promoiety could be responsible for a better penetration into the brain, more than the simple increase of lipophilicity gained with respect to the parent drug.
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Affiliation(s)
- R Pignatello
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Catania, Viale A. Doria, 6, 95125 Catania, Italy.
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17
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Sarpietro MG, Micieli D, Rocco F, Ceruti M, Castelli F. Conjugation of squalene to acyclovir improves the affinity for biomembrane models. Int J Pharm 2009; 382:73-9. [PMID: 19686827 DOI: 10.1016/j.ijpharm.2009.08.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2009] [Revised: 07/31/2009] [Accepted: 08/07/2009] [Indexed: 11/28/2022]
Abstract
Differential scanning calorimetry was used to study the interaction of acyclovir and its prodrug squalenoyl-acyclovir (obtained by conjugation of 1,1',2-tris-nor-squalene acid (squaleneCOOH) with acyclovir) with biomembrane models made of DMPC multilamellar vesicles with the aim to verify whether a stronger interaction of the prodrug with respect to the free drug can be obtained. Multilamellar vesicles were prepared in the presence of increasing molar fractions of acyclovir, squaleneCOOH or prodrug and the effect of the compounds on the thermotropic behavior of vesicles was researched, revealing no effect of acyclovir but a strong effect of squaleneCOOH and prodrug. To evaluate if acyclovir, squaleneCOOH and prodrug can be absorbed by the biomembrane model, an experiment was carried out in which the considered compounds were left in contact with the biomembrane model and their eventual uptake was evaluated analyzing the effect on the thermotropic behavior of the biomembrane model. A very small uptake was revealed for all the compounds. To check the potential use of liposomes as a delivery system for the prodrug, the biomembrane models were incubated with liposomes loaded with the compounds and the compounds transferring from the loaded liposomes to the unloaded biomembrane model was followed. The results suggest that liposomes could be used to deliver the squalenoyl-acyclovir to the biomembrane model.
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Affiliation(s)
- Maria Grazia Sarpietro
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
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18
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Desino KE, Pignatello R, Guccione S, Basile L, Ansar S, Michaelis ML, Ramsay RR, Audus KL. TCP-FA4: a derivative of tranylcypromine showing improved blood-brain permeability. Biochem Pharmacol 2009; 78:1412-7. [PMID: 19679106 DOI: 10.1016/j.bcp.2009.07.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2009] [Revised: 07/31/2009] [Accepted: 07/31/2009] [Indexed: 11/25/2022]
Abstract
A variety of approaches have been taken to improve the brain penetration of pharmaceutical agents. The amphipathic character of a compound can improve its interaction with the lipid bilayer within cell membranes, and as a result improve permeability. Fatty acid chains or lipoamino acids of various lengths were attached to tranylcypromine (TCP), in an attempt to improve the blood-brain barrier (BBB) permeability by increasing the lipophilicity as well as the amphiphatic character of the drug. TCP-FA4, one of the derivatives containing a four carbon alkyl acid chain, showed the greatest improvement in permeability. This molecule was slightly neuroprotective in a beta-amyloid-induced neurodegeneration assay and may also be capable of upregulating brain derived neurotrophic factor (BDNF), as indicated by cell culture assays using human umbilical vein endothelial cells. Since decreased levels of BDNF are observed in many CNS disorders, and direct injection of BDNF is not a viable option due to its poor permeability across the BBB, small molecules capable of regulating BDNF that also cross the BBB may be an interesting treatment option.
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Affiliation(s)
- Kelly E Desino
- The University of Kansas, Department of Pharmaceutical Chemistry, 2095 Constant Ave, Lawrence, KS 66047, USA.
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19
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Zhong W, Skwarczynski M, Toth I. Lipid Core Peptide System for Gene, Drug, and Vaccine Delivery. Aust J Chem 2009. [DOI: 10.1071/ch09149] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A vast number of biologically active compounds await efficient delivery to become therapeutic agents. Lipidation has been demonstrated to be a convenient and useful approach to improve the stability and transport across biological membranes of potential drug molecules. The lipid core peptide (LCP) system has emerged as a promising lipidation tool because of its versatile features. This review discusses the progress in the development of the LCP system to improve cell permeability of nucleotides, physicochemical properties of potential drugs, and vaccine immunogenicity. Emphasis was put on the application of the LCP system to deliver antigens for the prevention of group A streptococcus infection, novel techniques of conjugation of target molecules to the LCP, and new alterations of the LCP system itself.
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20
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Musumeci T, Ventura CA, Giannone I, Pignatello R, Puglisi G. Development of a Liposome Formulation for D-Cycloserine Local Delivery. J Liposome Res 2008; 18:211-24. [DOI: 10.1080/08982100802354624] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Pignatello R, Pantò V, Salmaso S, Bersani S, Pistarà V, Kepe V, Barrio JR, Puglisi G. Flurbiprofen Derivatives in Alzheimer’s Disease: Synthesis, Pharmacokinetic and Biological Assessment of Lipoamino Acid Prodrugs. Bioconjug Chem 2007; 19:349-57. [PMID: 18072715 DOI: 10.1021/bc700312y] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Rosario Pignatello
- Dipartimento di Scienze Farmaceutiche and Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria, 6 - 95125 Catania, Italy, Dipartimento di Scienze Farmaceutiche, Università degli Studi di Padova, Via F. Marzolo, 5 - 35131 Padova, Italy, and Department of Molecular and Medical Pharmacology, The David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Valentina Pantò
- Dipartimento di Scienze Farmaceutiche and Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria, 6 - 95125 Catania, Italy, Dipartimento di Scienze Farmaceutiche, Università degli Studi di Padova, Via F. Marzolo, 5 - 35131 Padova, Italy, and Department of Molecular and Medical Pharmacology, The David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Stefano Salmaso
- Dipartimento di Scienze Farmaceutiche and Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria, 6 - 95125 Catania, Italy, Dipartimento di Scienze Farmaceutiche, Università degli Studi di Padova, Via F. Marzolo, 5 - 35131 Padova, Italy, and Department of Molecular and Medical Pharmacology, The David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Sara Bersani
- Dipartimento di Scienze Farmaceutiche and Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria, 6 - 95125 Catania, Italy, Dipartimento di Scienze Farmaceutiche, Università degli Studi di Padova, Via F. Marzolo, 5 - 35131 Padova, Italy, and Department of Molecular and Medical Pharmacology, The David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Venerando Pistarà
- Dipartimento di Scienze Farmaceutiche and Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria, 6 - 95125 Catania, Italy, Dipartimento di Scienze Farmaceutiche, Università degli Studi di Padova, Via F. Marzolo, 5 - 35131 Padova, Italy, and Department of Molecular and Medical Pharmacology, The David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Vladimir Kepe
- Dipartimento di Scienze Farmaceutiche and Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria, 6 - 95125 Catania, Italy, Dipartimento di Scienze Farmaceutiche, Università degli Studi di Padova, Via F. Marzolo, 5 - 35131 Padova, Italy, and Department of Molecular and Medical Pharmacology, The David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Jorge R. Barrio
- Dipartimento di Scienze Farmaceutiche and Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria, 6 - 95125 Catania, Italy, Dipartimento di Scienze Farmaceutiche, Università degli Studi di Padova, Via F. Marzolo, 5 - 35131 Padova, Italy, and Department of Molecular and Medical Pharmacology, The David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Giovanni Puglisi
- Dipartimento di Scienze Farmaceutiche and Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria, 6 - 95125 Catania, Italy, Dipartimento di Scienze Farmaceutiche, Università degli Studi di Padova, Via F. Marzolo, 5 - 35131 Padova, Italy, and Department of Molecular and Medical Pharmacology, The David Geffen School of Medicine at UCLA, Los Angeles, California 90095
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Vodovozova EL, Kuznetsova NR, Gaenko GP, Molotkovskiĭ IG. [Liposomal formulation of a methotrexate diglyceride conjugate: activity in methotrexate-resistant leukemia cultured cells]. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2007; 33:470-3. [PMID: 17886439 DOI: 10.1134/s1068162007040103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We have recently synthesized a lipid conjugate of the anticancer agent methotrexate (MTX-DG) and showed that the conjugate is quantitatively included in the lipid bilayer of liposomes prepared by a standard extrusion technique from an 8 : 1 : 1 (mol) egg phosphatidylcholine-yeast phosphatidylinositol-MTX-DG mixture. Both the size of liposomes (126 +/- 30 nm) and the MTX-DG concentration (4.4 mM) are relevant for systemic injections in mammals. The liposomal formulation of MTX-DG was shown to overcome the resistance of tumor cells in vitro to methotrexate: the cytotoxic activities (IC50) of MTX in cultures of the human T-lymphoblastic leukemia cell line CEM-CCRF and the MTX-resistant subline CEM/MTX were 0.075 +/- 0.005 and 16.4 +/- 4.9 microM, respectively, while, in the case of liposomes loaded with MTX-DG, the IC50 values were much closer: 0.77 +/- 0.06 and 3.8 +/- 1.9 microM.
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Pignatello R, Intravaia VD, Puglisi G. A calorimetric evaluation of the interaction of amphiphilic prodrugs of idebenone with a biomembrane model. J Colloid Interface Sci 2006; 299:626-35. [PMID: 16545836 DOI: 10.1016/j.jcis.2006.02.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2005] [Revised: 02/08/2006] [Accepted: 02/14/2006] [Indexed: 11/28/2022]
Abstract
Lipoamino acids (LAA) are useful promoieties to modify physicochemical properties of drugs, namely lipophilicity and amphiphilicity. The resulting membrane-like character of drug-LAA conjugates can increase the absorption profile of drugs through cell membranes and biological barriers. To show the role of amphiphilicity with respect to lipophilicity in the interaction of drugs with biomembranes, in the present study we evaluated the mode of such an interaction of lipophilic conjugates of LAA with the antioxidant drug idebenone (IDE). DSC analysis and transfer kinetic studies were carried out using dimyristoylphosphatidylcholine (DMPC) multilamellar liposomes (MLVs) as a model. For comparison, two esters of IDE with alkanoic acids were synthesized and included in the analysis. The experimental results indicate that based on their different structure, IDE-LAA conjugates interacted at different levels with respect to pure IDE with DMPC bilayers. In particular, a progressive penetration inside the vesicles was observed upon incubation of IDE-LAA compounds with empty liposomes. The enhanced amphiphilicity of the drug due to the LAA moieties caused more complex interactions with DMPC bilayers, compared to those registered with the native drug or IDE alkanoate esters.
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Affiliation(s)
- R Pignatello
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Catania, viale A. Doria, 6, I-95125 Catania, Italy.
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