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Nordenskiöld L, Shi X, Korolev N, Zhao L, Zhai Z, Lindman B. Liquid-liquid phase separation (LLPS) in DNA and chromatin systems from the perspective of colloid physical chemistry. Adv Colloid Interface Sci 2024; 326:103133. [PMID: 38547652 DOI: 10.1016/j.cis.2024.103133] [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: 12/29/2023] [Accepted: 03/11/2024] [Indexed: 04/13/2024]
Abstract
DNA is a highly charged polyelectrolyte and is prone to associative phase separation driven by the presence of multivalent cations, charged surfactants, proteins, polymers and colloids. The process of DNA phase separation induced by positively charged species is often called DNA condensation. Generally, it refers to either intramolecular DNA compaction (coil-globule transition) or intermolecular DNA aggregation with macroscopic phase separation, but the formation of a DNA liquid crystalline system is also displayed. This has traditionally been described by polyelectrolyte theory and qualitative (Flory-Huggins-based) polymer theory approaches. DNA in the cell nucleus is packed into chromatin wound around the histone octamer (a protein complex comprising two copies each of the four histone proteins H2A, H2B, H3 and H4) to form nucleosomes separated by linker DNA. During the last decade, the phenomenon of the formation of biomolecular condensates (dynamic droplets) by liquid-liquid phase separation (LLPS) has emerged as a generally important mechanism for the formation of membraneless organelles from proteins, nucleic acids and their complexes. DNA and chromatin droplet formation through LLPS has recently received much attention by in vitro as well as in vivo studies that established the importance of this for compartmentalisation in the cell nucleus. Here, we review DNA and chromatin LLPS from a general colloid physical chemistry perspective. We start with a general discussion of colloidal phase separation in aqueous solutions and review the original (pre-LLPS era) work on DNA (macroscopic) phase separation for simpler systems with DNA in the presence of multivalent cations and well-defined surfactants and colloids. Following that, we discuss and illustrate the similarities of such macroscopic phase separation with the general behaviour of LLPS droplet formation by associative phase separation for DNA-protein systems, including chromatin; we also note cases of segregative association. The review ends with a discussion of chromatin LLPS in vivo and its physiological significance.
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Affiliation(s)
- Lars Nordenskiöld
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore.
| | - Xiangyan Shi
- Department of Biology, Shenzhen MSU-BIT University, Shenzhen 518172, China.
| | - Nikolay Korolev
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
| | - Lei Zhao
- Department of Biology, Shenzhen MSU-BIT University, Shenzhen 518172, China
| | - Ziwei Zhai
- Department of Biology, Shenzhen MSU-BIT University, Shenzhen 518172, China
| | - Björn Lindman
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore; Physical Chemistry, University of Lund, P.O. Box 124, S-221 00 Lund, Sweden; Coimbra Chemistry Centre, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal.
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Paris JL, Gaspar R, Coelho F, De Beule PAA, Silva BFB. Stability Criterion for the Assembly of Core-Shell Lipid-Polymer-Nucleic Acid Nanoparticles. ACS NANO 2023; 17:17587-17594. [PMID: 37581895 PMCID: PMC10510699 DOI: 10.1021/acsnano.3c07204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 08/10/2023] [Indexed: 08/16/2023]
Abstract
Hybrid core-shell lipid-polycation-nucleic acid nanoparticles (LPNPs) provide unique delivery strategies for nonviral gene therapeutics. Since LPNPs consist of multiple components, involving different pairwise interactions between them, they are challenging to characterize and understand. Here, we propose a method based on fluorescence cross-correlation spectroscopy to elucidate the association between the three LPNP components. Through this lens, we demonstrate that cationic lipid shells (liposomes) do not displace polycations or DNA from the polycation-DNA cores (polyplexes). Hence, polyplexes and liposomes must be oppositely charged to associate into LPNPs. Furthermore, we identify the liposome:polyplex number ratio (ρN), which was hitherto an intangible quantity, as the primary parameter predicting stable LPNPs. We establish that ρN ≥ 1 ensures that every polyplex is enveloped by a liposome, thus avoiding coexisting oppositely charged species prone to aggregation.
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Affiliation(s)
| | - Ricardo Gaspar
- International Iberian Nanotechnology
Laboratory, Braga, 4715-330, Portugal
| | - Filipe Coelho
- International Iberian Nanotechnology
Laboratory, Braga, 4715-330, Portugal
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Abstract
Desoxyribosenucleic acid, DNA, and cellulose molecules self-assemble in aqueous systems. This aggregation is the basis of the important functions of these biological macromolecules. Both DNA and cellulose have significant polar and nonpolar parts and there is a delicate balance between hydrophilic and hydrophobic interactions. The hydrophilic interactions related to net charges have been thoroughly studied and are well understood. On the other hand, the detailed roles of hydrogen bonding and hydrophobic interactions have remained controversial. It is found that the contributions of hydrophobic interactions in driving important processes, like the double-helix formation of DNA and the aqueous dissolution of cellulose, are dominating whereas the net contribution from hydrogen bonding is small. In reviewing the roles of different interactions for DNA and cellulose it is useful to compare with the self-assembly features of surfactants, the simplest case of amphiphilic molecules. Pertinent information on the amphiphilic character of cellulose and DNA can be obtained from the association with surfactants, as well as on modifying the hydrophobic interactions by additives.
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Kim MG, Kang TW, Park JY, Park SH, Ji YB, Ju HJ, Kwon DY, Kim YS, Kim SW, Lee B, Choi HS, Lee HB, Kim JH, Lee BY, Min BH, Kim MS. An injectable cationic hydrogel electrostatically interacted with BMP2 to enhance in vivo osteogenic differentiation of human turbinate mesenchymal stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109853. [PMID: 31349513 DOI: 10.1016/j.msec.2019.109853] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 04/29/2019] [Accepted: 06/01/2019] [Indexed: 01/06/2023]
Abstract
We have designed and characterized an injectable, electrostatically bonded, in situ-forming hydrogel system consisting of a cationic polyelectrolyte [(methoxy)polyethylene glycol-b-(poly(ε-caprolactone)-ran-poly(L-lactic acid)] (MP) copolymer derivatized with an amine group (MP-NH2) and anionic BMP2. To the best of our knowledge, there have been hardly any studies that have investigated electrostatically bonded, in situ-forming hydrogel systems consisting of MP-NH2 and BMP2, with respect to how they promote in vivo osteogenic differentiation of human turbinate mesenchymal stem cells (hTMSCs). Injectable formulations almost immediately formed an electrostatically loaded hydrogel depot containing BMP2, upon injection into mice. The hydrogel features and stability of BMP2 inside the hydrogel were significantly affected by the electrostatic attraction between BMP2 and MP-NH2. Additionally, the time BMP2 spent inside the hydrogel depot was prolonged in vivo, as evidenced by in vivo near-infrared fluorescence imaging. Biocompatibility was demonstrated by the fact that hTMSCs survived in vivo, even after 8 weeks and even though relatively few macrophages were in the hydrogel depot. The osteogenic capacity of the electrostatically loaded hydrogel implants containing BMP2 was higher than that of a hydrogel that was simply loaded with BMP2, as evidenced by Alizarin Red S, von Kossa, and hematoxylin and eosin staining as well as osteonectin, osteopontin, osteocalcin, and type 1α collagen mRNA expression. The results confirmed that our injectable, in situ-forming hydrogel system, electrostatically loaded with BMP2, can enhance in vivo osteogenic differentiation of hTMSCs.
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Affiliation(s)
- Mal Geum Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Tae Woong Kang
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Joon Yeong Park
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Seung Hun Park
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Yun Bae Ji
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Hyeon Jin Ju
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Doo Yeon Kwon
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Young Sik Kim
- The Institute of Biomaterial and Medical Engineering, Cellumed Co., Ltd., Seoul 08589, Republic of Korea
| | - Sung Won Kim
- Department of Otolaryngology-Head and Neck Surgery, The Catholic University of Korea, College of Medicine, Seoul 06591, Republic of Korea
| | - Bong Lee
- Department of Polymer Engineering, Pukyong National University, Busan 48513, Republic of Korea
| | - Hak Soo Choi
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Hai Bang Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Jae Ho Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Bun Yeoul Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Byoung Hyun Min
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea.
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Virus capsid assembly across different length scales inspire the development of virus-based biomaterials. Curr Opin Virol 2019; 36:38-46. [PMID: 31071601 DOI: 10.1016/j.coviro.2019.02.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 02/12/2019] [Accepted: 02/25/2019] [Indexed: 01/26/2023]
Abstract
In biology, there are an abundant number of self-assembled structures organized according to hierarchical levels of complexity. In some examples, the assemblies formed at each level exhibit unique properties and behaviors not present in individual components. Viruses are an example of such where first individual subunits come together to form a capsid structure, some utilizing a scaffolding protein to template or catalyze the capsid formation. Increasing the level of complexity, the viral capsids can then be used as building blocks of higher-level assemblies. This has inspired scientists to design and construct virus capsid-based functional nano-materials. This review provides some insight into the assembly of virus capsids across several length scales, and certain properties that arise at different levels, providing examples found in naturally occurring systems and those that are synthetically designed.
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Luque-Caballero G, Maldonado-Valderrama J, Quesada-Pérez M, Martín-Molina A. Interaction of DNA with likely-charged lipid monolayers: An experimental study. Colloids Surf B Biointerfaces 2019; 178:170-176. [PMID: 30856586 DOI: 10.1016/j.colsurfb.2019.02.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 02/27/2019] [Accepted: 02/28/2019] [Indexed: 12/31/2022]
Abstract
Anionic lipids are increasingly being used in lipoplexes for synthetic gene vectors as an alternative to cationic lipids. This is primarily due to their lower toxicity, which makes them biocompatible and adaptable to be tissue specific. However, anionic lipoplexes require the presence of multivalent cations to promote the electrostatic attraction between DNA and anionic lipid mono- and bilayers. In this work we provide for the first time experimental results of the adsorption of linear DNA onto anionic/zwitterionic lipid monolayers without any addition of cations. This is demonstrated experimentally by means of Langmuir monolayers of DOPE/DOPG (1:1) lipids spread on a water subphase that contains calf thymus DNA. The adsorption of DNA onto anionic/zwitterionic lipid monolayers is discussed in terms of the surface pressure-molecular area isotherms recorded in the absence and in the presence of different electrolytes. Measurements of the surface potential provide additional evidence of the different interaction of DNA anionic/zwitterionic lipid monolayers depending on the presence and nature of electrolyte. These experimental results are further analysed in terms of the overall dipole moment normal to the monolayers providing new insight into the behaviour of anionic lipoplexes and the role of zwitterionic lipids.
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Affiliation(s)
- German Luque-Caballero
- Departamento de Física Aplicada, Universidad de Granada, Campus de Fuentenueva sn, 18071, Granada, Spain
| | - Julia Maldonado-Valderrama
- Departamento de Física Aplicada, Universidad de Granada, Campus de Fuentenueva sn, 18071, Granada, Spain; Unidad de excelencia "Modelling Nature" (MNat), Universidad de Granada, Spain
| | - Manuel Quesada-Pérez
- Departamento de Física, Escuela Politécnica Superior de Linares, Universidad de Jaén, 23700, Linares, Jaén, Spain
| | - Alberto Martín-Molina
- Departamento de Física Aplicada, Universidad de Granada, Campus de Fuentenueva sn, 18071, Granada, Spain; Instituto Carlos I de Física Teórica y Computacional, Universidad de Granada, Spain.
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Recent advances in self-assembled peptides: Implications for targeted drug delivery and vaccine engineering. Adv Drug Deliv Rev 2017; 110-111:169-187. [PMID: 27356149 DOI: 10.1016/j.addr.2016.06.013] [Citation(s) in RCA: 214] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 06/10/2016] [Accepted: 06/21/2016] [Indexed: 11/20/2022]
Abstract
Self-assembled peptides have shown outstanding characteristics for vaccine delivery and drug targeting. Peptide molecules can be rationally designed to self-assemble into specific nanoarchitectures in response to changes in their assembly environment including: pH, temperature, ionic strength, and interactions between host (drug) and guest molecules. The resulting supramolecular nanostructures include nanovesicles, nanofibers, nanotubes, nanoribbons, and hydrogels and have a diverse range of mechanical and physicochemical properties. These molecules can be designed for cell-specific targeting by including adhesion ligands, receptor recognition ligands, or peptide-based antigens in their design, often in a multivalent display. Depending on their design, self-assembled peptide nanostructures have advantages in biocompatibility, stability against enzymatic degradation, encapsulation of hydrophobic drugs, sustained drug release, shear-thinning viscoelastic properties, and/or adjuvanting properties. These molecules can also act as intracellular transporters and respond to changes in the physiological environment. Furthermore, this class of materials has shown sequence- and structure-dependent impacts on the immune system that can be tailored to non-immunogenic for drug targeting, and immunogenic for vaccine delivery. This review explores self-assembled peptide nanostructures (beta sheets, alpha helices, peptide amphiphiles, amino acid pairing, elastin like polypeptides, cyclic peptides, short peptides, Fmoc peptides, and peptide hydrogels) and their application in vaccine delivery and drug targeting.
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8
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Jorge AF, Nunes SC, Cova TF, Pais AA. Cooperative action in DNA condensation. Curr Opin Colloid Interface Sci 2016. [DOI: 10.1016/j.cocis.2016.09.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li J, Li X, Xu J, Wang Y, Wu L, Wang Y, Wang L, Lee M, Li W. Engineering the Ionic Self-Assembly of Polyoxometalates and Facial-Like Peptides. Chemistry 2016; 22:15751-15759. [DOI: 10.1002/chem.201602449] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Jingfang Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry; Jilin University; Qianjin Avenue 2699 Changchun 130012 P.R. China
| | - Xiaodong Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry; Jilin University; Qianjin Avenue 2699 Changchun 130012 P.R. China
| | - Jing Xu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry; Jilin University; Qianjin Avenue 2699 Changchun 130012 P.R. China
| | - Yang Wang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry; Jilin University; Qianjin Avenue 2699 Changchun 130012 P.R. China
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry; Jilin University; Qianjin Avenue 2699 Changchun 130012 P.R. China
| | - Yanqiu Wang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry; Jilin University; Qianjin Avenue 2699 Changchun 130012 P.R. China
| | - Liyan Wang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry; Jilin University; Qianjin Avenue 2699 Changchun 130012 P.R. China
| | - Myongsoo Lee
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry; Jilin University; Qianjin Avenue 2699 Changchun 130012 P.R. China
| | - Wen Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry; Jilin University; Qianjin Avenue 2699 Changchun 130012 P.R. China
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Zhang YM, Yang Y, Zhang YH, Liu Y. Polysaccharide Nanoparticles for Efficient siRNA Targeting in Cancer Cells by Supramolecular pKa Shift. Sci Rep 2016; 6:28848. [PMID: 27363811 PMCID: PMC4929451 DOI: 10.1038/srep28848] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 06/09/2016] [Indexed: 12/21/2022] Open
Abstract
Biomacromolecular pKa shifting is considered as one of the most ubiquitous processes in biochemical events, e.g., the enzyme-catalyzed reaction and protein conformational stabilization. In this paper, we report on the construction of biocompatible polysaccharide nanoparticle with targeting ability and lower toxicity by supramolecular pKa shift strategy. This was realized through a ternary assembly constructed by the dual host‒guest interactions of an adamantane-bis(diamine) conjugate (ADA) with cucurbit[6]uril (CB[6]) and a polysaccharide. The potential application of such biocompatible nanostructure was further implemented by the selective transportation of small interfering RNA (siRNA) in a controlled manner. It is demonstrated that the strong encapsulation of the ADA's diammonium tail by CB[6] not only reduced the cytotoxicity of the nano-scaled vehicle but also dramatically enhanced cation density through an obvious positive macrocycle-induced pKa shift, which eventually facilitated the subsequent siRNA binding. With a targeted polysaccharide shell containing a cyclodextrin‒hyaluronic acid conjugate, macrocycle-incorporated siRNA polyplexes were specifically delivered into malignant human prostate PC-3 cells. The supramolecular polysaccharide nanoparticles, the formation of which was enabled and promoted by the complexation-assisted pKa shift, may be used as a versatile tool for controlled capture and release of biofunctional substrates.
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Affiliation(s)
- Ying-Ming Zhang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yang Yang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yu-Hui Zhang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yu Liu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
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11
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Gabdrakhmanov D, Samarkina D, Semenov V, Krylova E, Reznik V, Zakharova L. Cationic surfactant with 1,2,4-triazole- and uracil moieties as amphiphilic building blocks for supramolecular nanocontainers. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.069] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Zhang XJ, Zhang YM, Wang Z, Chen Y, Liu Y. Cooperative DNA Compaction by Ternary Supramolecular Complex with Cucurbituril/Cyclodextrin Pair. ChemistrySelect 2016. [DOI: 10.1002/slct.201600066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xu-Jie Zhang
- Department of Chemistry; State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Ying-Ming Zhang
- Department of Chemistry; State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Ze Wang
- Department of Chemistry; State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Yong Chen
- Department of Chemistry; State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 P. R. China
| | - Yu Liu
- Department of Chemistry; State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 P. R. China
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13
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Chen C, Liu K, Li J, Yan X. Functional architectures based on self-assembly of bio-inspired dipeptides: Structure modulation and its photoelectronic applications. Adv Colloid Interface Sci 2015; 225:177-93. [PMID: 26365127 DOI: 10.1016/j.cis.2015.09.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 09/01/2015] [Accepted: 09/02/2015] [Indexed: 11/16/2022]
Abstract
Getting inspiration from nature and further developing functional architectures provides an effective way to design innovative materials and systems. Among bio-inspired materials, dipeptides and its self-assembled architectures with functionalities have recently been the subject of intensive studies. However, there is still a great challenge to explore its applications likely due to the lack of effective adaptation of their self-assembled structures as well as a lack of understanding of the self-assembly mechanisms. In this context, taking diphenylalanine (FF, a core recognition motif for molecular self-assembly of the Alzheimer's β-amyloid polypeptides) as a model of bio-inspired dipeptides, recent strategies on modulation of dipeptide-based architectures were introduced with regard to both covalent (architectures modulation by coupling functional groups) and non-covalent ways (controlled architectures by different assembly pathways). Then, applications are highlighted in some newly emerging fields of innovative photoelectronic devices and materials, such as artificial photosynthetic systems for renewable solar energy storage and renewable optical waveguiding materials for optoelectronic devices. At last, the challenges and future perspectives of these bio-inspired dipeptides are also addressed.
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Affiliation(s)
- Chengjun Chen
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Kai Liu
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junbai Li
- Key Lab of Colloid and Interface Science, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xuehai Yan
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
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14
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Kowalski PS, Kuninty PR, Bijlsma KT, Stuart MCA, Leus NGJ, Ruiters MHJ, Molema G, Kamps JAAM. SAINT-liposome-polycation particles, a new carrier for improved delivery of siRNAs to inflamed endothelial cells. Eur J Pharm Biopharm 2014; 89:40-7. [PMID: 25460585 DOI: 10.1016/j.ejpb.2014.11.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 11/17/2014] [Accepted: 11/20/2014] [Indexed: 12/31/2022]
Abstract
Interference with acute and chronic inflammatory processes by means of delivery of siRNAs into microvascular endothelial cells at a site of inflammation demands specific, non-toxic and effective siRNA delivery system. In the current work we describe the design and characterization of siRNA carriers based on cationic pyridinium-derived lipid 1-methyl-4-(cis-9-dioleyl)methyl-pyridinium-chloride) (SAINT-C18) and the transfection enhancer protamine, complexed with siRNA/carrier DNA or siRNA only. These carriers, called SAINT-liposome-polycation-DNA (S-LPD) and SAINT-liposome-polycation (S-LP), have a high efficiency of siRNA encapsulation, low cellular toxicity, and superior efficacy of gene downregulation in endothelial cells in vitro as compared to DOTAP-LPD. Incorporation of 10 mol% PEG and anti-E-selectin antibody in these formulations resulted in selective siRNA delivery into activated endothelial cells. Furthermore, we showed that the physicochemical characteristics of S-LPD and S-LP, including size-stability and maintenance of the siRNA integrity in the presence of serum at 37 °C, comply with requirements for in vivo application.
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Affiliation(s)
- Piotr S Kowalski
- University of Groningen, University Medical Center Groningen, Dept. of Pathology & Medical Biology, Medical Biology Section, Groningen, The Netherlands
| | - Praneeth R Kuninty
- University of Groningen, University Medical Center Groningen, Dept. of Pathology & Medical Biology, Medical Biology Section, Groningen, The Netherlands
| | - Klaas T Bijlsma
- University of Groningen, University Medical Center Groningen, Dept. of Pathology & Medical Biology, Medical Biology Section, Groningen, The Netherlands
| | - Marc C A Stuart
- University of Groningen, Groningen Biomolecular Sciences and Biotechnology Institute, The Netherlands; Stratingh Institute, University of Groningen, Groningen, The Netherlands
| | - Niek G J Leus
- University of Groningen, University Medical Center Groningen, Dept. of Pathology & Medical Biology, Medical Biology Section, Groningen, The Netherlands
| | - Marcel H J Ruiters
- University of Groningen, University Medical Center Groningen, Dept. of Pathology & Medical Biology, Medical Biology Section, Groningen, The Netherlands; Synvolux Therapeutics, Groningen, The Netherlands
| | - Grietje Molema
- University of Groningen, University Medical Center Groningen, Dept. of Pathology & Medical Biology, Medical Biology Section, Groningen, The Netherlands
| | - Jan A A M Kamps
- University of Groningen, University Medical Center Groningen, Dept. of Pathology & Medical Biology, Medical Biology Section, Groningen, The Netherlands.
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15
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Shrestha N, Araújo F, Sarmento B, Hirvonen J, Santos HA. Gene-based therapy for Type 1 diabetes mellitus: viral and nonviral vectors. ACTA ACUST UNITED AC 2014. [DOI: 10.2217/dmt.14.31] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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