1
|
Itzhakov R, Hak H, Sadhasivam S, Belausov E, Fallik E, Spiegelman Z, Sionov E, Poverenov E. Nanogel Particles Based on Modified Nucleosides and Oligosaccharides as Advanced Delivery System. ACS NANO 2023; 17:23020-23031. [PMID: 37934119 DOI: 10.1021/acsnano.3c08627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
This work addresses the challenge of delivering bioactive molecules by designing biocompatible nanogel particles (NGPs) utilizing rationally modified nature-sourced building blocks: capryl-oligochitosan and oxidized inosine. Capryl substituents endowed the resultant NGPs with membrane-penetration capabilities, while purine-containing inosine allowed H-bond/π-π/π-cation interactions. The prepared NGPs were complexed with carboxyfluorescein-labeled single-stranded oligonucleotide (FAM-oligo) and DsRed-encoding plasmid DNA. The successful delivery of FAM-oligo to the cell cytoplasm of the Nicotiana benthamiana plant was observed. Alexa 555-labeled bovine serum albumin (Alexa 555-BSA) was also efficiently encapsulated and delivered to the plant. In addition to delivering FAM-oligo and Alexa 555-BSA separately, NGPs also successfully co-delivered both biomolecules to the plant. Finally, NGPs successfully encapsulated the drug amphotericin B and reduced its toxicity while maintaining its efficacy. The presented findings suggest that NGPs may become a promising platform for the advanced delivery of bioactive molecules in various applications.
Collapse
Affiliation(s)
- Rafael Itzhakov
- Agro-Nanotechnology and Advanced Materials Research Center, Department of Food Sciences, Agricultural Research Organization, Volcani Institute, Rishon LeZion 7505101, Israel
- The Robert H. Smith Faculty of Agriculture, Food and Environment, Biochemistry and Food Sciences, The Hebrew University of Jerusalem, Rehovot 76100, Israel
| | - Hagit Hak
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Rishon LeZion 7505101, Israel
| | - Sudharsan Sadhasivam
- The Robert H. Smith Faculty of Agriculture, Food and Environment, Biochemistry and Food Sciences, The Hebrew University of Jerusalem, Rehovot 76100, Israel
- Institute of Food and Postharvest Sciences, Agricultural Research Organization, Volcani Institute, Rishon LeZion 7505101, Israel
| | - Eduard Belausov
- Institute of Plant Sciences, Agricultural Research Organization, Volcani Institute, Rishon LeZion 7505101, Israel
| | - Elazar Fallik
- Institute of Food and Postharvest Sciences, Agricultural Research Organization, Volcani Institute, Rishon LeZion 7505101, Israel
| | - Ziv Spiegelman
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Rishon LeZion 7505101, Israel
| | - Edward Sionov
- Institute of Food and Postharvest Sciences, Agricultural Research Organization, Volcani Institute, Rishon LeZion 7505101, Israel
| | - Elena Poverenov
- Agro-Nanotechnology and Advanced Materials Research Center, Department of Food Sciences, Agricultural Research Organization, Volcani Institute, Rishon LeZion 7505101, Israel
| |
Collapse
|
2
|
Schmitt S, Nuhn L, Barz M, Butt HJ, Koynov K. Shining Light on Polymeric Drug Nanocarriers with Fluorescence Correlation Spectroscopy. Macromol Rapid Commun 2022; 43:e2100892. [PMID: 35174569 DOI: 10.1002/marc.202100892] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/04/2022] [Indexed: 11/07/2022]
Abstract
The use of nanoparticles as carriers is an extremely promising way for administration of therapeutic agents, such as drug molecules, proteins and nucleic acids. Such nanocarriers (NCs) can increase the solubility of hydrophobic compounds, protect their cargo from the environment, and if properly functionalized, deliver it to specific target cells and tissues. Polymer-based NCs are especially promising, because they offer high degree of versatility and tunability. However, in order to get a full advantage of this therapeutic approach and develop efficient delivery systems, a careful characterization of the NCs is needed. This Feature Article highlights the fluorescence correlation spectroscopy (FCS) technique as a powerful and versatile tool for NCs characterization at all stages of the drug delivery process. In particular, FCS can monitor and quantify the size of the NCs and the drug loading efficiency after preparation, the NCs stability and possible interactions with, e.g., plasma proteins in the blood stream and the kinetic of drug release in the cytoplasm of the target cells. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Sascha Schmitt
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany
| | - Lutz Nuhn
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany
| | - Matthias Barz
- Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Hans-Jürgen Butt
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany
| |
Collapse
|
3
|
Sahel DK, Salman M, Azhar M, Goswami S, Singh V, Dalela M, Mohanty S, Mittal A, Ramalingam S, Chitkara D. Cationic Lipopolymeric Nanoplexes Containing CRISPR/Cas9 Ribonucleoprotein for Genome Surgery. J Mater Chem B 2022; 10:7634-7649. [DOI: 10.1039/d2tb00645f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
sgRNA/Cas9 ribonucleoproteins (RNPs) provide a site-specific robust gene-editing approach avoiding the mutagenesis and unwanted off-target effects. However, the high molecular weight (~165 kDa), hydrophilicity and net supranegative charge (~ -20...
Collapse
|
4
|
Silva AS, Shopsowitz KE, Correa S, Morton SW, Dreaden EC, Casimiro T, Aguiar-Ricardo A, Hammond PT. Rational design of multistage drug delivery vehicles for pulmonary RNA interference therapy. Int J Pharm 2020; 591:119989. [PMID: 33122113 DOI: 10.1016/j.ijpharm.2020.119989] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 09/09/2020] [Accepted: 10/13/2020] [Indexed: 12/21/2022]
Abstract
Small interfering RNA (siRNA) therapy has significant potential for the treatment of myriad diseases, including cancer. While intravenous routes of delivery have been found to be effective for efficient targeting to the liver, achieving high accumulations selectively in other organs, including lung tissues, can be a challenge. We demonstrate the rational design and engineering of a layer-by-layer (LbL) nanoparticle-containing aerosol that is able to achieve efficient, multistage delivery of siRNA in vitro. For the purpose, LbL nanoparticles were, for the first time, encapsulated in composite porous micro scale particles using a supercritical CO2-assisted spray drying (SASD) apparatus using chitosan as an excipient. Such particles exhibited aerodynamic properties highly favorable for pulmonary administration, and effective silencing of mutant KRAS in lung cancer cells derived from tumors of a non-small cell lung cancer (NSCLC) autochthonous model. Furthermore, efficient alveolar accumulation following inhalation in healthy mice was also observed, corroborating in vitro aerodynamic results, and opening new perspectives for further studies of effective lung therapies These results show that multistage aerosols assembled by supercritical CO2-assisted spray drying can enable efficient RNA interference therapy of pulmonary diseases including lung cancer.
Collapse
Affiliation(s)
- A Sofia Silva
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States.
| | - Kevin E Shopsowitz
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Santiago Correa
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Stephen W Morton
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Erik C Dreaden
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Teresa Casimiro
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Ana Aguiar-Ricardo
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - Paula T Hammond
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, United States.
| |
Collapse
|
5
|
Heitz M, Zamolo S, Javor S, Reymond JL. Fluorescent Peptide Dendrimers for siRNA Transfection: Tracking pH Responsive Aggregation, siRNA Binding, and Cell Penetration. Bioconjug Chem 2020; 31:1671-1684. [PMID: 32421327 DOI: 10.1021/acs.bioconjchem.0c00231] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Transfecting nucleic acids into various cells is a key procedure in biological research also envisioned for therapeutic applications. In our effort to obtain simple reagents that would be readily accessible from commercial building blocks, we recently reported peptide dendrimers as single component siRNA transfection reagents accessible in pure form by solid-phase peptide synthesis. Here, we extend our studies of these dendrimers by identifying analogs bearing a coumarin or BODIPY fluorescent label in their core and displaying comparable siRNA transfection efficiencies, pH dependent aggregation, siRNA binding, and secondary structures. Fluorescence resonance energy transfer (FRET) studies show that the dendrimers are tightly associated with siRNA within the formed nanoparticles at pH 7.4 but are released into solution at pH 5.0 and can participate in endosome escape by destabilizing the membrane at this pH value. Colocalization studies furthermore suggest that peptide dendrimers and siRNA remain tightly associated throughout the transfection process.
Collapse
Affiliation(s)
- Marc Heitz
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Susanna Zamolo
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Sacha Javor
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| |
Collapse
|
6
|
Leber N, Zentel R. Improved SiRNA Loading of Cationic Nanohydrogel Particles by Variation of Crosslinking Density. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nadine Leber
- Institute of Organic ChemistryJohannes Gutenberg‐University of Mainz Duesbergweg 10‐14 55128 Mainz Germany
| | - Rudolf Zentel
- Institute of Organic ChemistryJohannes Gutenberg‐University of Mainz Duesbergweg 10‐14 55128 Mainz Germany
| |
Collapse
|
7
|
Tabujew I, Willig M, Leber N, Freidel C, Negwer I, Koynov K, Helm M, Landfester K, Zentel R, Peneva K, Mailänder V. Overcoming the barrier of CD8 +T cells: Two types of nano-sized carriers for siRNA transport. Acta Biomater 2019; 100:338-351. [PMID: 31586726 DOI: 10.1016/j.actbio.2019.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 09/24/2019] [Accepted: 10/01/2019] [Indexed: 12/30/2022]
Abstract
Bioengineering immune cells via gene therapy offers treatment opportunities for currently fatal viral infections. Also cell therapeutics offer most recently a breakthrough technology to combat cancer. These primary human cells, however, are sensitive to toxic influences, which make the utilization of optimized physical transfection techniques necessary. The otherwise commonly applied delivery agents such as LipofectamineⓇ or strongly cationic polymer structures are not only unsuitable for in vivo experiments, but are also highly toxic to immune cells. This study aimed to improve the design of polymeric carrier systems for small interfering RNA, which would allow efficient internalization into CD8+T-cells without affecting their viability and thereby removing the current limitations in the field. Here, two new carrier systems for small interfering RNA were tested. One is a cationic diblock copolymer, in which less than 10% of the monomers were modified with triphenylphosphonium cations. This moiety is lipophilic, promotes uptake and it is mostly known for its mitotropic properties. Furthermore, cationic nanohydrogel particles were synthesized in exceedingly small sizes (Rh < 14 nm). After full physicochemical characterization of the two carriers, extensive cytotoxicity studies were performed and the concentration dependent uptake into CD8+T-cells was tested in correlation to incubation time and protein content of the surrounding medium. Both carriers facilitated efficient complexation of siRNA as well as significant internalization into primary human cells in less than three hours of incubation. In addition, neither of the delivery systems reduced cell viability making them good candidates to transport siRNA into CD8+T-cells efficiently. STATEMENT OF SIGNIFICANCE: This study provides insights into the design of polymeric delivery agents as the method of choice for overcoming the limitations of cell manipulation. Until now, CD8+T-cells, which have become a treatment tool for currently fatal diseases, have not yet been made accessible for gene silencing by polymeric siRNA carrier systems. Choosing appropriate modification approaches for two chemically different polymer structures, we were, in both cases, able to achieve significant uptake in these cells even at low concentrations and without inducing cytotoxicity. These results remove current limitations and pave the way for bioengineering via gene therapy.
Collapse
|
8
|
Tabujew I, Heidari M, Freidel C, Helm M, Tebbe L, Wolfrum U, Nagel-Wolfrum K, Koynov K, Biehl P, Schacher FH, Potestio R, Peneva K. Tackling the Limitations of Copolymeric Small Interfering RNA Delivery Agents by a Combined Experimental–Computational Approach. Biomacromolecules 2019; 20:4389-4406. [DOI: 10.1021/acs.biomac.9b01061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ilja Tabujew
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Maziar Heidari
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Christoph Freidel
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Mark Helm
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University Mainz, Staudingerweg 5, 55128 Mainz, Germany
| | - Lars Tebbe
- Institute of Zoology, Johannes Gutenberg University Mainz, Muellerweg 6, 55099 Mainz, Germany
| | - Uwe Wolfrum
- Institute of Zoology, Johannes Gutenberg University Mainz, Muellerweg 6, 55099 Mainz, Germany
| | - Kerstin Nagel-Wolfrum
- Institute of Zoology, Johannes Gutenberg University Mainz, Muellerweg 6, 55099 Mainz, Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Philip Biehl
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Felix H. Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Raffaello Potestio
- Physics Department, University of Trento, Via Sommarive 14, I-38123 Trento, Italy
- INFN-TIFPA, Trento Institute for Fundamental Physics and Applications, Via Sommarive 14, I-38123 Trento, Italy
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| |
Collapse
|
9
|
Leber N, Kaps L, Yang A, Aslam M, Giardino M, Klefenz A, Choteschovsky N, Rosigkeit S, Mostafa A, Nuhn L, Schuppan D, Zentel R. α‐Mannosyl‐Functionalized Cationic Nanohydrogel Particles for Targeted Gene Knockdown in Immunosuppressive Macrophages. Macromol Biosci 2019; 19:e1900162. [DOI: 10.1002/mabi.201900162] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Nadine Leber
- Institutes of Organic ChemistryJohannes Gutenberg‐University of Mainz Duesbergweg 10‐14 55128 Mainz Germany
| | - Leonard Kaps
- Institute of Translational Immunology and Research Center for ImmunotherapyUniversity Medical Center of the Johannes Gutenberg‐University Mainz Obere Zahlbacher Str. 63 55131 Mainz Germany
| | - Aiting Yang
- Institute of Translational Immunology and Research Center for ImmunotherapyUniversity Medical Center of the Johannes Gutenberg‐University Mainz Obere Zahlbacher Str. 63 55131 Mainz Germany
| | - Misbah Aslam
- Institute of Translational Immunology and Research Center for ImmunotherapyUniversity Medical Center of the Johannes Gutenberg‐University Mainz Obere Zahlbacher Str. 63 55131 Mainz Germany
- Department of MicrobiologyShaheed Benazir Bhutto Women University LARAMA, Charsadda Road, Peshawar, Pakistan
| | - Mariacristina Giardino
- Institute of Translational Immunology and Research Center for ImmunotherapyUniversity Medical Center of the Johannes Gutenberg‐University Mainz Obere Zahlbacher Str. 63 55131 Mainz Germany
| | - Adrian Klefenz
- Institute of Translational Immunology and Research Center for ImmunotherapyUniversity Medical Center of the Johannes Gutenberg‐University Mainz Obere Zahlbacher Str. 63 55131 Mainz Germany
| | - Niklas Choteschovsky
- Institute of Translational Immunology and Research Center for ImmunotherapyUniversity Medical Center of the Johannes Gutenberg‐University Mainz Obere Zahlbacher Str. 63 55131 Mainz Germany
| | - Sebastian Rosigkeit
- Institute of Translational Immunology and Research Center for ImmunotherapyUniversity Medical Center of the Johannes Gutenberg‐University Mainz Obere Zahlbacher Str. 63 55131 Mainz Germany
| | - Asmaa Mostafa
- Institute of Translational Immunology and Research Center for ImmunotherapyUniversity Medical Center of the Johannes Gutenberg‐University Mainz Obere Zahlbacher Str. 63 55131 Mainz Germany
| | - Lutz Nuhn
- Max‐Planck‐Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Detlef Schuppan
- Institute of Translational Immunology and Research Center for ImmunotherapyUniversity Medical Center of the Johannes Gutenberg‐University Mainz Obere Zahlbacher Str. 63 55131 Mainz Germany
- Division of GastroenterologyBeth Israel Deaconess Medical Center, Harvard Medical School 330 Brookline Avenue Boston MA 02215 USA
| | - Rudolf Zentel
- Institutes of Organic ChemistryJohannes Gutenberg‐University of Mainz Duesbergweg 10‐14 55128 Mainz Germany
| |
Collapse
|
10
|
Tabujew I, Cokca C, Zartner L, Schubert US, Nischang I, Fischer D, Peneva K. The influence of gradient and statistical arrangements of guanidinium or primary amine groups in poly(methacrylate) copolymers on their DNA binding affinity. J Mater Chem B 2019; 7:5920-5929. [DOI: 10.1039/c9tb01269a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Herein, we report the first gradient guanidinium containing cationic copolymers and investigate their binding ability to plasmid DNA (pDNA).
Collapse
Affiliation(s)
- Ilja Tabujew
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Ceren Cokca
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Leon Zartner
- Institute of Pharmacy
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Ulrich S. Schubert
- Jena Center of Soft Matter
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
| | - Ivo Nischang
- Jena Center of Soft Matter
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
| | - Dagmar Fischer
- Institute of Pharmacy
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center of Soft Matter
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center of Soft Matter
| |
Collapse
|
11
|
Cui PF, Zhuang WR, Hu X, Xing L, Yu RY, Qiao JB, He YJ, Li F, Ling D, Jiang HL. A new strategy for hydrophobic drug delivery using a hydrophilic polymer equipped with stacking units. Chem Commun (Camb) 2018; 54:8218-8221. [DOI: 10.1039/c8cc04363a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly hydrophilic polymer was used to deliver aromatic ring-containing hydrophobic agent doxorubicin (DOX) via π–π interaction.
Collapse
|
12
|
SiRNA-mediated in vivo gene knockdown by acid-degradable cationic nanohydrogel particles. J Control Release 2017; 248:10-23. [DOI: 10.1016/j.jconrel.2016.12.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 11/23/2016] [Accepted: 12/06/2016] [Indexed: 01/22/2023]
|
13
|
Jonuleit H, Bopp T, Becker C. Treg cells as potential cellular targets for functionalized nanoparticles in cancer therapy. Nanomedicine (Lond) 2016; 11:2699-2709. [PMID: 27654070 DOI: 10.2217/nnm-2016-0197] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Treg cell-mediated immune suppression appears to represent a significant barrier to effective anticancer immune responses and their inactivation or removal is viewed as a potential therapeutic approach. Although suitable tools for selective Treg cell manipulation in man are missing, their number and function can be altered by a number of drugs and biologicals and by reprogramming tumor-infiltrating antigen presenting cells. Nanoparticles offer exceptional new options in drug and gene delivery by prolonging the circulation time of their cargo, protecting it from degradation and promoting its local accumulation in cells and tissues. In tumor therapy, the use of nanoparticles is expected to overcome limitations in drug delivery and provide novel means for cell-specific functional alteration. In this perspective, we summarize strategies suitable for interference with Treg-mediated suppression, discuss the potential use of nanoparticles for this purpose and identify additional, unexplored opportunities.
Collapse
Affiliation(s)
- Helmut Jonuleit
- Department of Dermatology, University Medical Center Mainz, Johannes Gutenberg-University, Mainz, Germany
| | - Tobias Bopp
- Institute for Immunology, University Medical Center Mainz, Johannes Gutenberg-University, Mainz, Germany
| | - Christian Becker
- Department of Dermatology, University Medical Center Mainz, Johannes Gutenberg-University, Mainz, Germany
| |
Collapse
|
14
|
Nuhn L, Kaps L, Diken M, Schuppan D, Zentel R. Reductive Decationizable Block Copolymers for Stimuli-Responsive mRNA Delivery. Macromol Rapid Commun 2016; 37:924-33. [DOI: 10.1002/marc.201600046] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 03/09/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Lutz Nuhn
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 D-55099 Mainz Germany
- Department of Pharmaceutics; Ghent University; Ottergemsesteenweg 460 B-9000 Ghent Belgium
| | - Leonard Kaps
- Institute of Translational Immunology; University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 D-55101 Mainz Germany
| | - Mustafa Diken
- TRON - Translational Oncology; University Medical Center of the Johannes Gutenberg-University Mainz; Freiligrathstraße 12 D-55131 Mainz Germany
| | - Detlef Schuppan
- Institute of Translational Immunology; University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 D-55101 Mainz Germany
- Division of Gastroenterology; Beth Israel Deaconess Medical Center; Harvard Medical School; 330 Brookline Avenue Boston MA 02215 USA
| | - Rudolf Zentel
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 D-55099 Mainz Germany
| |
Collapse
|
15
|
Kaps L, Nuhn L, Aslam M, Brose A, Foerster F, Rosigkeit S, Renz P, Heck R, Kim YO, Lieberwirth I, Schuppan D, Zentel R. In Vivo Gene-Silencing in Fibrotic Liver by siRNA-Loaded Cationic Nanohydrogel Particles. Adv Healthc Mater 2015; 4:2809-15. [PMID: 26627192 DOI: 10.1002/adhm.201500826] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Indexed: 12/20/2022]
Abstract
Cationic nanohydrogel particles loaded with anti-Col1α1 siRNA suppress collagen synthesis and deposition in fibrotic mice: Systemically administered 40 nm sized nanogel particles accumulate in collagen-expressing cells in the liver. Their siRNA payload induces a sequence specific in vivo gene knockdown affording an efficient antifibrotic effect in mice with liver fibrosis.
Collapse
Affiliation(s)
- Leonard Kaps
- Institute of Translational Immunology and Research Center for Immune Therapy (FZI); University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 55101 Mainz Germany
| | - Lutz Nuhn
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 55128 Mainz Germany
- Department of Pharmaceutics; Ghent University; Ottergemsesteenweg 460 9000 Ghent Belgium
| | - Misbah Aslam
- Institute of Translational Immunology and Research Center for Immune Therapy (FZI); University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 55101 Mainz Germany
| | - Alexander Brose
- Institute of Translational Immunology and Research Center for Immune Therapy (FZI); University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 55101 Mainz Germany
| | - Friedrich Foerster
- Institute of Translational Immunology and Research Center for Immune Therapy (FZI); University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 55101 Mainz Germany
- Department of Medicine I (Gastroenterology Hepatology, and Nephrology); University Medical Center of Johannes Gutenberg-University Mainz; Langenbeckstraße 1 55101 Mainz Germany
| | - Sebastian Rosigkeit
- Institute of Translational Immunology and Research Center for Immune Therapy (FZI); University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 55101 Mainz Germany
| | - Patricia Renz
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Rosario Heck
- Institute of Translational Immunology and Research Center for Immune Therapy (FZI); University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 55101 Mainz Germany
| | - Yong Ook Kim
- Institute of Translational Immunology and Research Center for Immune Therapy (FZI); University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 55101 Mainz Germany
| | - Ingo Lieberwirth
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Detlef Schuppan
- Institute of Translational Immunology and Research Center for Immune Therapy (FZI); University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 55101 Mainz Germany
- Division of Gastroenterology; Beth Israel Deaconess Medical Center; Harvard Medical School; 330 Brookline Avenue Boston MA 02215 USA
| | - Rudolf Zentel
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 55128 Mainz Germany
| |
Collapse
|
16
|
Hirsch M, Helm M. Live cell imaging of duplex siRNA intracellular trafficking. Nucleic Acids Res 2015; 43:4650-60. [PMID: 25870407 PMCID: PMC4482072 DOI: 10.1093/nar/gkv307] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 03/27/2015] [Indexed: 01/08/2023] Open
Abstract
Intracellular distribution of siRNA after in vitro transfection typically depends on lipopolyplexes, which must release the siRNA into the cytosol. Here, the fate of siRNAs was monitored by FRET-based live cell imaging. Subsequent to in situ observation of uptake and release processes, this approach allowed the observation of a number of hitherto uncharacterized intracellular distribution and degradation processes, commencing with a burst of endosomal releases, followed, in some cases, by fast siRNA influx into the nucleus. The continued observation of intact siRNA against a background of free fluorophores resulting from advanced degradation was possible by a specifically developed imaging algorithm, which identified populations of intact siRNA in pixels based on FRET. This proved to be essential in the end point definition of siRNA distribution, which typically featured partially degraded siRNA pools in perinuclear structures. Our results depict the initial 4 h as a critical time window, characterized by fast initial burst release into the cytosol, which lay the foundations for subsequent intracellular distribution of siRNA. Combination with a subsequent slower, but sustained release from endosomal reservoirs may contribute to the efficiency and duration of RNAi, and explain the success of lipopolyplexes in RNAi experiments in cell culture.
Collapse
Affiliation(s)
- Markus Hirsch
- Institute of Pharmacy and Biochemistry, University of Mainz, D-55128 Mainz, Germany Institute of Pharmacy und Molecular Biotechnology, University of Heidelberg, D-69120 Heidelberg, Germany
| | - Mark Helm
- Institute of Pharmacy and Biochemistry, University of Mainz, D-55128 Mainz, Germany Institute of Pharmacy und Molecular Biotechnology, University of Heidelberg, D-69120 Heidelberg, Germany
| |
Collapse
|