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Valldeperas M, Talaikis M, Dhayal SK, Velička M, Barauskas J, Niaura G, Nylander T. Encapsulation of Aspartic Protease in Nonlamellar Lipid Liquid Crystalline Phases. Biophys J 2019; 117:829-843. [PMID: 31422820 DOI: 10.1016/j.bpj.2019.07.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 07/15/2019] [Accepted: 07/19/2019] [Indexed: 02/04/2023] Open
Abstract
Encapsulation of proteins within lipid inverse bicontinuous cubic phases (Q2) has been widely studied for many applications, such as protein crystallization or drug delivery of proteins for food and pharmaceutical purposes. However, the use of the lipid sponge (L3) phase for encapsulation of proteins has not yet been well explored. Here, we have employed a lipid system that forms highly swollen sponge phases to entrap aspartic protease (34 kDa), an enzyme used for food processing, e.g., to control the cheese-ripening process. Small-angle x-ray scattering showed that although the L3 phase was maintained at low enzyme concentrations (≤15 mg/mL), higher concentration induces a transition to more curved structures, i.e., transition from L3 to inverse bicontinuous cubic (Q2) phase. The Raman spectroscopy data showed minor conformational changes assigned to the lipid molecules that confirm the lipid-protein interactions. However, the peaks assigned to the protein showed that the structure was not significantly affected. This was consistent with the higher activity presented by the encapsulated aspartic protease compared to the free enzyme stored at the same temperature. Finally, the encapsulation efficiency of aspartic protease in lipid sponge-like nanoparticles was 81% as examined by size-exclusion chromatography. Based on these results, we discuss the large potential of lipid sponge phases as carriers for proteins.
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Affiliation(s)
- Maria Valldeperas
- Physical Chemistry, Department of Chemistry, Lund University, Lund, Sweden; NanoLund, Lund University, Lund, Sweden
| | - Martynas Talaikis
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | | | - Martynas Velička
- Institute of Chemical Physics, Faculty of Physics, Vilnius University, Vilnius, Lithuania
| | | | - Gediminas Niaura
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Tommy Nylander
- Physical Chemistry, Department of Chemistry, Lund University, Lund, Sweden; NanoLund, Lund University, Lund, Sweden.
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Chu XQ, Zhang Y, Huang J, Li Q, Li ZG, Jiang JQ, Gui SY. The Effect of Prescription on the Framework of Lipid Matrix and In Vitro Properties. Curr Drug Deliv 2019; 16:737-750. [PMID: 31250753 DOI: 10.2174/1567201816666190620115403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/27/2019] [Accepted: 05/29/2019] [Indexed: 11/22/2022]
Abstract
PURPOSE To clarify the inner framework and relative properties in vitro of Lyotropic liquid crystal (LLC) based on various prescriptions by using hydrophilic sinomenine hydrochloride (SH) and lipophilic cinnamaldehyde (CA) as model drugs. METHODS Phase structures were checked by polarized light microscopy (PLM) and small-angle X-ray scattering (SAXS). Rheological studies and Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) analysis were carried out to reveal their molecular interactions. In vitro release and skin permeation were conducted by Franz diffusion cell. RESULTS PLM and SAXS showed double diamond cubic crystal. All the samples displayed characteristics of non-Newtonian fluid, and the molecular interactions increased with the reducing water. ATRFTIR showed that the strongest strength of hydrogen bond emerged in the formulation with 32% water. Released SH of S2 and S3 arrived over 80%, while S1 only reached 45%, and that of CA was about 23%. Water-rich prescription gave higher percutaneous penetration for hydrophilic drugs, whereas no significant difference existed in CA permeation. CONCLUSION Proportion of Phytantriol to water determined the LLC assembling and affected the dissolving status of hydrophilic substance, thereby impacting on the location sites of guest molecular interactions among the substances, rheology properties, and finally the release and penetration behavior in vitro. Adjusting the basic prescription was the key to obtain satisfactory percutaneous delivery and stability for LLC carrying multi-therapeutic agents.
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Affiliation(s)
- Xiao-Qin Chu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China.,School of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing 211198, China.,Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China
| | - Yong Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jie Huang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Qian Li
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Zheng-Guang Li
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jian-Qin Jiang
- School of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing 211198, China.,Cellular and molecular biology Center, China Pharmaceutical University, Nanjing 211198, China
| | - Shuang-Ying Gui
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China.,Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China
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Chu X, Li Q, Gui S, Li Z, Cao J, Jiang J. Characterization and In Vitro Permeation Study of Cubic Liquid Crystal Containing Sinomenine Hydrochloride. AAPS PharmSciTech 2018; 19:2237-2246. [PMID: 29740759 DOI: 10.1208/s12249-018-1018-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/12/2018] [Indexed: 12/22/2022] Open
Abstract
This study developed a new transdermal delivery system for the improved delivery of sinomenine hydrochloride (SH). The delivery system utilized the advantages of lyotropic liquid crystals (LLC) creating an adaptable system that offers a variety of options for the field of transdermal delivery. The formulation was prepared, characterized, and evaluated for its skin penetration in vitro. In the study, the appearance of samples was characterized by visual observation, and these LLC gels were colorless and transparent. Polarizing light microscopy (PLM) and small-angle X-ray diffraction (SAXS) were used to analyze the internal structures of gels, and the gels displayed a cubic double-diamond (Pn3m) internal structure with a dark field of vision. The Franze diffusion cell was used to evaluate its skin penetration. There were several factors which might influence the skin penetration of drugs, such as drug loading, water content, and the layer spacing of the LLC. In our case, drug concentration gradient played a more powerful role. The result of in vitro permeation studies demonstrated that the drug concentration was higher; the cumulative osmotic quantity of SH (Q) was greater. Therefore, the system was a promising formulation for successful percutaneous delivery of SH through the skin.
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Advances in structural design of lipid-based nanoparticle carriers for delivery of macromolecular drugs, phytochemicals and anti-tumor agents. Adv Colloid Interface Sci 2017; 249:331-345. [PMID: 28477868 DOI: 10.1016/j.cis.2017.04.006] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/13/2017] [Accepted: 04/17/2017] [Indexed: 12/19/2022]
Abstract
The present work highlights recent achievements in development of nanostructured dispersions and biocolloids for drug delivery applications. We emphasize the key role of biological small-angle X-ray scattering (BioSAXS) investigations for the nanomedicine design. A focus is given on controlled encapsulation of small molecular weight phytochemical drugs in lipid-based nanocarriers as well as on encapsulation of macromolecular siRNA, plasmid DNA, peptide and protein pharmaceuticals in nanostructured nanoparticles that may provide efficient intracellular delivery and triggered drug release. Selected examples of utilisation of the BioSAXS method for characterization of various types of liquid crystalline nanoorganizations (liposome, spongosome, cubosome, hexosome, and nanostructured lipid carriers) are discussed in view of the successful encapsulation and protection of phytochemicals and therapeutic biomolecules in the hydrophobic or the hydrophilic compartments of the nanocarriers. We conclude that the structural design of the nanoparticulate carriers is of crucial importance for the therapeutic outcome and the triggered drug release from biocolloids.
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Self-assembled stable sponge-type nanocarries for Brucea javanica oil delivery. Colloids Surf B Biointerfaces 2017; 153:310-319. [PMID: 28285062 DOI: 10.1016/j.colsurfb.2017.02.031] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 02/11/2017] [Accepted: 02/24/2017] [Indexed: 12/17/2022]
Abstract
Sponge-type nanocarriers (spongosomes) are produced upon dispersion of a liquid crystalline sponge phase formed by self-assembly of an amphiphilic lipid in excess aqueous phase. The inner organization of the spongosomes is built-up by randomly ordered bicontinuous lipid membranes and their surfaces are stabilized by alginate chains providing stealth properties and colloidal stability. The present study elaborates spongosomes for improved encapsulation of Brucea javanica oil (BJO), a traditional Chinese medicine that may strongly inhibit proliferation and metastasis of various cancers. The inner structural organization and the morphology characteristics of BJO-loaded nanocarriers at varying quantities of BJO were determined by cryogenic transmission electron microscopy (Cryo-TEM), small angle X-ray scattering (SAXS) and dynamic light scattering (DLS). Additionally, the drug loading and drug release profiles for BJO-loaded spongosome systems also were determined. We found that the sponge-type liquid crystalline lipid membrane organization provides encapsulation efficiency rate of BJO as high as 90%. In vitro cytotoxicity and apoptosis study of BJO spongosome nanoparticles with A549 cells demonstrated enhanced anti-tumor efficiency. These results suggest potential clinical applications of the obtained safe spongosome formulations.
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Akbar S, Anwar A, Ayish A, Elliott JM, Squires AM. Phytantriol based smart nano-carriers for drug delivery applications. Eur J Pharm Sci 2017; 101:31-42. [PMID: 28137471 DOI: 10.1016/j.ejps.2017.01.035] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 01/14/2017] [Accepted: 01/26/2017] [Indexed: 10/20/2022]
Abstract
From the last couple of decades, lyotropic liquid crystals have garnered enormous attentions in medical and pharmaceutical sciences. Non-toxic, chemically stable, and biocompatible properties of these liquid crystal systems are contributing to their applications for drug delivery. Among a large variety of liquid crystal phases, inverse bicontinuous cubic and inverse hexagonal mesophases have been extensively investigated for their ability to encapsulate and controlled release of bioactive molecules of various sizes and polarity. The concept of changing the drug release rate in situ by simply changing the mesophase structure is much more fascinating. The encapsulation of bioactive compounds in mesophase systems of desirable features in sub-micron sized particles such as hexosomes and cubosomes, at ambient and high temperature is bringing innovation in the development of new drug applications. This review article outlines unique structural features of cubosomes and hexosomes, their methods of productions, factors affecting their formations and their potential utilization as smart nano-carriers for biopharmaceuticals in drug delivery applications.
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Affiliation(s)
- Samina Akbar
- Department of Basic Sciences and Humanities, University of Engineering and Technology, KSK Campus, GT Road, Lahore, Pakistan.
| | - Aneela Anwar
- Department of Basic Sciences and Humanities, University of Engineering and Technology, KSK Campus, GT Road, Lahore, Pakistan
| | | | - Joanne M Elliott
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD
| | - Adam M Squires
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD
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Angelova A, Angelov B, Mutafchieva R, Lesieur S. Biocompatible Mesoporous and Soft Nanoarchitectures. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0143-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Angelova A, Angelov B, Drechsler M, Garamus VM, Lesieur S. Protein entrapment in PEGylated lipid nanoparticles. Int J Pharm 2013; 454:625-32. [DOI: 10.1016/j.ijpharm.2013.06.006] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 06/03/2013] [Accepted: 06/06/2013] [Indexed: 12/20/2022]
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Kühl T, Wißbrock A, Goradia N, Sahoo N, Galler K, Neugebauer U, Popp J, Heinemann SH, Ohlenschläger O, Imhof D. Analysis of Fe(III) heme binding to cysteine-containing heme-regulatory motifs in proteins. ACS Chem Biol 2013; 8:1785-93. [PMID: 23730736 DOI: 10.1021/cb400317x] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Regulatory heme binds to specific motifs in proteins and controls a variety of biochemical processes. Several of these proteins were recently shown to form complexes with ferric and/or ferrous heme via a cysteine residue as axial ligand. The objective of this study was to examine the heme-binding properties of a series of cysteine-containing peptides with focus on CP motif sequences. The peptides displayed different binding behavior upon Fe(III) heme application with characteristic wavelength shifts of the Soret band to 370 nm or 420-430 nm and in some cases to both wavelengths. Whereas for most of the peptides containing a cysteine only a shift to 420-430 nm was observed, CP-containing peptides exhibited a preference for a shift to 370 nm. Detailed structural investigation using Raman and NMR spectroscopy on selected representatives revealed different binding modes with respect to iron ion coordination, which reflected the results of the UV-vis studies. A predicted short sequence stretch derived from dipeptidyl peptidase 8 was additionally examined with respect to CP motif binding to heme on the peptide as well as on the protein level. The heme association was confirmed with the first solution structure of a CP-peptide-heme complex and, moreover, an inhibitory effect of Fe(III) heme on the enzyme's activity. The relevance of both the use of model compounds to elucidate the molecular mechanism underlying regulatory heme binding and its potential for the investigation of regulatory heme control is discussed.
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Affiliation(s)
- Toni Kühl
- Pharmaceutical
Chemistry I, Institute of Pharmacy, University of Bonn, Brühler Str. 7, D-53119 Bonn, Germany
| | - Amelie Wißbrock
- Pharmaceutical
Chemistry I, Institute of Pharmacy, University of Bonn, Brühler Str. 7, D-53119 Bonn, Germany
| | - Nishit Goradia
- Biomolecular NMR Spectroscopy, Leibniz Institute for Age Research−Fritz Lipmann Institute, Beutenbergstr. 11, D-07745 Jena, Germany
| | - Nirakar Sahoo
- Center of Molecular Biomedicine, Department of Biophysics, Friedrich Schiller University Jena and Jena University Hospital, Hans-Knöll-Str. 2, D-07745 Jena, Germany
| | - Kerstin Galler
- Center for Sepsis Control and Care (CSCC), Jena University Hospital, Erlanger Allee 101, D-07747
Jena, Germany
- Institute of Photonic Technology, Albert-Einstein-Str.
9, D-07745 Jena, Germany
| | - Ute Neugebauer
- Center for Sepsis Control and Care (CSCC), Jena University Hospital, Erlanger Allee 101, D-07747
Jena, Germany
- Institute of Photonic Technology, Albert-Einstein-Str.
9, D-07745 Jena, Germany
| | - Jürgen Popp
- Center for Sepsis Control and Care (CSCC), Jena University Hospital, Erlanger Allee 101, D-07747
Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4,
D-07743 Jena, Germany
| | - Stefan H. Heinemann
- Center of Molecular Biomedicine, Department of Biophysics, Friedrich Schiller University Jena and Jena University Hospital, Hans-Knöll-Str. 2, D-07745 Jena, Germany
| | - Oliver Ohlenschläger
- Biomolecular NMR Spectroscopy, Leibniz Institute for Age Research−Fritz Lipmann Institute, Beutenbergstr. 11, D-07745 Jena, Germany
| | - Diana Imhof
- Pharmaceutical
Chemistry I, Institute of Pharmacy, University of Bonn, Brühler Str. 7, D-53119 Bonn, Germany
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