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Jogdeo CM, Siddhanta K, Das A, Ding L, Panja S, Kumari N, Oupický D. Beyond Lipids: Exploring Advances in Polymeric Gene Delivery in the Lipid Nanoparticles Era. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2404608. [PMID: 38842816 DOI: 10.1002/adma.202404608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/23/2024] [Indexed: 06/07/2024]
Abstract
The recent success of gene therapy during the COVID-19 pandemic has underscored the importance of effective and safe delivery systems. Complementing lipid-based delivery systems, polymers present a promising alternative for gene delivery. Significant advances have been made in the recent past, with multiple clinical trials progressing beyond phase I and several companies actively working on polymeric delivery systems which provides assurance that polymeric carriers can soon achieve clinical translation. The massive advantage of structural tunability and vast chemical space of polymers is being actively leveraged to mitigate shortcomings of traditional polycationic polymers and improve the translatability of delivery systems. Tailored polymeric approaches for diverse nucleic acids and for specific subcellular targets are now being designed to improve therapeutic efficacy. This review describes the recent advances in polymer design for improved gene delivery by polyplexes and covalent polymer-nucleic acid conjugates. The review also offers a brief note on novel computational techniques for improved polymer design. The review concludes with an overview of the current state of polymeric gene therapies in the clinic as well as future directions on their translation to the clinic.
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Affiliation(s)
- Chinmay M Jogdeo
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Kasturi Siddhanta
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ashish Das
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ling Ding
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Sudipta Panja
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Neha Kumari
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - David Oupický
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
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2
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Opsomer L, Jana S, Mertens I, Cui X, Hoogenboom R, Sanders NN. Efficient in vitro and in vivo transfection of self-amplifying mRNA with linear poly(propylenimine) and poly(ethylenimine-propylenimine) random copolymers as non-viral carriers. J Mater Chem B 2024; 12:3927-3946. [PMID: 38563779 DOI: 10.1039/d3tb03003b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Messenger RNA (mRNA) based vaccines have been introduced worldwide to combat the Covid-19 pandemic. These vaccines consist of non-amplifying mRNA formulated in lipid nanoparticles (LNPs). Consequently, LNPs are considered benchmark non-viral carriers for nucleic acid delivery. However, the formulation and manufacturing of these mRNA-LNP nanoparticles are expensive and time-consuming. Therefore, we used self-amplifying mRNA (saRNA) and synthesized novel polymers as alternative non-viral carrier platform to LNPs, which enable a simple, rapid, one-pot formulation of saRNA-polyplexes. Our novel polymer-based carrier platform consists of randomly concatenated ethylenimine and propylenimine comonomers, resulting in linear, poly(ethylenimine-ran-propylenimine) (L-PEIx-ran-PPIy) copolymers with controllable degrees of polymerization. Here we demonstrate in multiple cell lines, that our saRNA-polyplexes show comparable to higher in vitro saRNA transfection efficiencies and higher cell viabilities compared to formulations with Lipofectamine MessengerMAX™ (LFMM), a commercial, lipid-based carrier considered to be the in vitro gold standard carrier. This is especially true for our in vitro best performing saRNA-polyplexes with N/P 5, which are characterised with a size below 100 nm, a positive zeta potential, a near 100% encapsulation efficiency, a high retention capacity and the ability to protect the saRNA from degradation mediated by RNase A. Furthermore, an ex vivo hemolysis assay with pig red blood cells demonstrated that the saRNA-polyplexes exhibit negligible hemolytic activity. Finally, a bioluminescence-based in vivo study was performed over a 35-day period, and showed that the polymers result in a higher and prolonged bioluminescent signal compared to naked saRNA and L-PEI based polyplexes. Moreover, the polymers show different expression profiles compared to those of LNPs, with one of our new polymers (L-PPI250) demonstrating a higher sustained expression for at least 35 days after injection.
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Affiliation(s)
- Lisa Opsomer
- Laboratory of Gene Therapy, Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, B-9820 Merelbeke, Belgium.
| | - Somdeb Jana
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, 9000 Ghent, Belgium.
| | - Ine Mertens
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, 9000 Ghent, Belgium.
| | - Xiaole Cui
- Laboratory of Gene Therapy, Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, B-9820 Merelbeke, Belgium.
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, 9000 Ghent, Belgium.
| | - Niek N Sanders
- Laboratory of Gene Therapy, Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, B-9820 Merelbeke, Belgium.
- Cancer Research Institute (CRIG), Ghent University, B-9000 Ghent, Belgium
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3
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Lim C, Lee S, Shin Y, Cho S, Park C, Shin Y, Song EC, Kim WK, Ham C, Kim SB, Kwon YS, Oh KT. Development and application of novel peptide-formulated nanoparticles for treatment of atopic dermatitis. J Mater Chem B 2023; 11:10131-10146. [PMID: 37830254 DOI: 10.1039/d3tb01202f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Atopic dermatitis is a chronic inflammatory skin condition that is characterized by skin inflammation, itching, and redness. Although various treatments can alleviate symptoms, they often come with side effects, highlighting the need for new treatments. Here, we discovered a new peptide-based therapy using the intra-dermal delivery technology (IDDT) platform developed by Remedi Co., Ltd (REMEDI). The platform screens and identifies peptides derived from proteins in the human body that possess cell-penetrating peptide (CPP) properties. We screened over 1000-peptides and identified several derived from the Speckled protein (SP) family that have excellent CPP properties and have anti-inflammatory effects. We assessed these peptides for their potential as a treatment for atopic dermatitis. Among them, the RMSP1 peptide showed the most potent anti-inflammatory effects by inhibiting the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and signal transducer and activator of transcription 3 (STAT3) signaling pathways while possessing CPP properties. To further improve efficacy and stability, we developed a palmitoylated version called Pal-RMSP1. Formulation studies using liposomes (Pal-RMSP1 LP) and micelles (Pal-RMSP1 DP) demonstrated improved anti-inflammatory effects in vitro and enhanced therapeutic effects in vivo. Our study indicates that nano-formulated Pal-RMSP1 could have the potential to become a new treatment option for atopic dermatitis.
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Affiliation(s)
- Chaemin Lim
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea.
- College of Pharmacy, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, 13488 Gyeonggi-do, Republic of Korea
| | - Subin Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea.
- Department of Global Innovative Drugs, The Graduate School of Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yuseon Shin
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea.
- Department of Global Innovative Drugs, The Graduate School of Chung-Ang University, Seoul 06974, Republic of Korea
| | - Seongmin Cho
- Remedi Co., Ltd. Research Center, Songdo 21990, Republic of Korea
| | - Chanho Park
- Remedi Co., Ltd. Research Center, Songdo 21990, Republic of Korea
| | - Yungyeong Shin
- Remedi Co., Ltd. Research Center, Songdo 21990, Republic of Korea
| | - Ee Chan Song
- Remedi Co., Ltd. Research Center, Songdo 21990, Republic of Korea
| | - Wan Ki Kim
- Remedi Co., Ltd. Research Center, Songdo 21990, Republic of Korea
| | - Cheolmin Ham
- Rare Isotope Science Project, Institute for Basic Science, Daejeon 34000, Republic of Korea
| | - Sang Bum Kim
- College of Pharmacy, Sahmyook University, Seoul 01795, Republic of Korea
| | - Yong-Su Kwon
- Department of Ophthalmology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Kyung Taek Oh
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea.
- Department of Global Innovative Drugs, The Graduate School of Chung-Ang University, Seoul 06974, Republic of Korea
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4
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Patel SS, Hoogenboezem EN, Yu F, DeJulius CR, Fletcher RB, Sorets AG, Cherry FK, Lo JH, Bezold MG, Francini N, d'Arcy R, Brasuell JE, Cook RS, Duvall CL. Core polymer optimization of ternary siRNA nanoparticles enhances in vivo safety, pharmacokinetics, and tumor gene silencing. Biomaterials 2023; 297:122098. [PMID: 37031547 PMCID: PMC10192225 DOI: 10.1016/j.biomaterials.2023.122098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023]
Abstract
Gene silencing with siRNA nanoparticles (si-NPs) is promising but still clinically unrealized for inhibition of tumor driver genes. Ternary si-NPs containing siRNA, a single block NP core-forming polymer poly[(2-(dimethylamino)ethyl methacrylate)-co-(butyl methacrylate)] (DMAEMA-co-BMA, 50B), and an NP surface-forming diblock polymer 20 kDa poly(ethylene glycol)-block-50B (20kPEG-50B) have the potential to improve silencing activity in tumors due to the participation of both 50B and 20kPEG-50B in siRNA electrostatic loading and endosome disruptive activity. Functionally, single block 50B provides more potent endosomolytic activity, while 20kPEG-50B colloidally stabilizes the si-NPs. Here, we systematically explored the role of the molecular weight (MW) of the core polymer and of the core:surface polymer ratio on ternary si-NP performance. A library of ternary si-NPs was formulated with variation in the MW of the 50B polymer and in the ratio of the core and surface forming polymeric components. Increasing 50B core polymer MW and ratio improved si-NP in vitro gene silencing potency, endosome disruptive activity, and stability, but these features also correlated with cytotoxicity. Concomitant optimization of 50B size and ratio resulted in the identification of lead ternary si-NPs 50B4-DP100, 50B8-DP100, and 50B12-DP25, with potent activity and minimal toxicity. Following intravenous treatment in vivo, all lead si-NPs displayed negligible toxicological effects and enhanced pharmacokinetics and tumor gene silencing relative to more canonical binary si-NPs. Critically, a single 1 mg/kg intravenous injection of 50B8-DP100 si-NPs silenced the tumor driver gene Rictor at the protein level by 80% in an orthotopic breast tumor model. 50B8-DP100 si-NPs delivering siRictor were assessed for therapeutic efficacy in an orthotopic HCC70 mammary tumor model. This formulation significantly inhibited tumor growth compared to siControl-NP treatment. 50B8-DP100 si-NPs were also evaluated for safety and were well-tolerated following a multi-dose treatment scheme. This work provides new insight on ternary si-NP structure-function relationships and identifies core polymer optimization strategies that can yield safe si-NP formulations with potent oncogene silencing.
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Affiliation(s)
- Shrusti S Patel
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Ella N Hoogenboezem
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Fang Yu
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Carlisle R DeJulius
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - R Brock Fletcher
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Alex G Sorets
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Fiona K Cherry
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Justin H Lo
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA; Division of Hematology/Oncology, Department of Internal Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Mariah G Bezold
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Nora Francini
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Richard d'Arcy
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Jordan E Brasuell
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Rebecca S Cook
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Craig L Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA.
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5
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Liu CH, Shih PY, Lin CH, Chen YJ, Wu WC, Wang CC. Tetraethylenepentamine-Coated β Cyclodextrin Nanoparticles for Dual DNA and siRNA Delivery. Pharmaceutics 2022; 14:pharmaceutics14050921. [PMID: 35631507 PMCID: PMC9145619 DOI: 10.3390/pharmaceutics14050921] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/15/2022] [Accepted: 04/20/2022] [Indexed: 02/01/2023] Open
Abstract
Nucleic acid reagents, including plasmid-encoded genes and small interfering RNA (siRNA), are promising tools for validating gene function and for the development of therapeutic agents. Native β-cyclodextrins (BCDs) have limited efficiency in gene delivery due to their instable complexes with nucleic acid. We hypothesized that cationic BCD nanoparticles could be an efficient carrier for both DNA and siRNA. Tetraethylenepentamine-coated β-cyclodextrin (TEPA-BCD) nanoparticles were synthesized, characterized, and evaluated for targeted cell delivery of plasmid DNA and siRNA. The cationic TEPA coating provided ideal zeta potential and effective nucleic acid binding ability. When transfecting plasmid encoding green fluorescent protein (GFP) by TEPA-BCD, excellent GFP expression could be achieved in multiple cell lines. In addition, siRNA transfected by TEPA-BCD suppressed target GFP gene expression. We showed that TEPA-BCD internalization was mediated by energy-dependent endocytosis via both clathrin-dependent and caveolin-dependent endocytic pathways. TEPA-BCD nanoparticles provide an effective means of nucleic acid delivery and can act as potential carriers in future pharmaceutical application.
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Affiliation(s)
- Chi-Hsien Liu
- Department of Chemical and Materials Engineering, Chang Gung University, 259, Wen-Hwa First Road, Kwei-Shan, Taoyuan 33302, Taiwan; (C.-H.L.); (Y.-J.C.)
- Research Center for Chinese Herbal Medicine and Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, 261, Wen-Hwa First Road, Taoyuan 33302, Taiwan
- Department of Chemical Engineering, Ming Chi University of Technology, 84, Gung-Juan Road, New Taipei City 24301, Taiwan
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, 5, Fu-Hsing Street, Taoyuan 33305, Taiwan;
- Correspondence: (C.-H.L.); (C.-C.W.)
| | - Pei-Yin Shih
- Graduate Institute of Biochemical and Biomedical Engineering, Chang Gung University, Taoyuan 33302, Taiwan;
| | - Cheng-Han Lin
- Department of Chemical and Materials Engineering, Chang Gung University, 259, Wen-Hwa First Road, Kwei-Shan, Taoyuan 33302, Taiwan; (C.-H.L.); (Y.-J.C.)
| | - Yi-Jun Chen
- Department of Chemical and Materials Engineering, Chang Gung University, 259, Wen-Hwa First Road, Kwei-Shan, Taoyuan 33302, Taiwan; (C.-H.L.); (Y.-J.C.)
| | - Wei-Chi Wu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, 5, Fu-Hsing Street, Taoyuan 33305, Taiwan;
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Chun-Chao Wang
- Institute of Molecular Medicine & Department of Medical Science, National Tsing Hua University, 101, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Correspondence: (C.-H.L.); (C.-C.W.)
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6
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Bedingfield SK, Colazo JM, Yu F, Liu DD, Jackson MA, Himmel LE, Cho H, Crofford LJ, Hasty KA, Duvall CL. Amelioration of post-traumatic osteoarthritis via nanoparticle depots delivering small interfering RNA to damaged cartilage. Nat Biomed Eng 2021; 5:1069-1083. [PMID: 34413494 PMCID: PMC8497446 DOI: 10.1038/s41551-021-00780-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/10/2021] [Indexed: 02/01/2023]
Abstract
The progression of osteoarthritis is associated with inflammation triggered by the enzymatic degradation of extracellular matrix in injured cartilage. Here we show that a locally injected depot of nanoparticles functionalized with an antibody targeting type II collagen and carrying small interfering RNA targeting the matrix metalloproteinase 13 gene (Mmp13), which breaks down type II collagen, substantially reduced the expression of MMP13 and protected cartilage integrity and overall joint structure in acute and severe mouse models of post-traumatic osteoarthritis. MMP13 inhibition suppressed clusters of genes associated with tissue restructuring, angiogenesis, innate immune responses and proteolysis. We also show that intra-articular injections of the nanoparticles led to greater reductions in disease progression than either a single injection or weekly injections of the steroid methylprednisolone. Sustained drug retention by targeting collagen in the damaged extracellular matrix of osteoarthritic cartilage may also be an effective strategy for the treatment of osteoarthritis with other disease-modifying drugs.
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Affiliation(s)
- Sean K. Bedingfield
- Department of Biomedical Engineering, Vanderbilt University, 2301 Vanderbilt Place PMB 351826 Nashville, TN 37235-1826
| | - Juan M. Colazo
- Department of Biomedical Engineering, Vanderbilt University, 2301 Vanderbilt Place PMB 351826 Nashville, TN 37235-1826
| | - Fang Yu
- Department of Biomedical Engineering, Vanderbilt University, 2301 Vanderbilt Place PMB 351826 Nashville, TN 37235-1826
| | - Danielle D. Liu
- Department of Biomedical Engineering, Vanderbilt University, 2301 Vanderbilt Place PMB 351826 Nashville, TN 37235-1826
| | - Meredith A. Jackson
- Department of Biomedical Engineering, Vanderbilt University, 2301 Vanderbilt Place PMB 351826 Nashville, TN 37235-1826
| | - Lauren E. Himmel
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1161 21st Ave. South, Suite C-3322 Nashville, Tennessee 37232-2561
| | - Hongsik Cho
- Department of Orthopaedic Surgery and Biomedical Engineering, Memphis VA Medical Center, 1211 Union Ave. Suite 520 Memphis, TN 38104
| | - Leslie J. Crofford
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1161 21st Ave. South, Suite C-3322 Nashville, Tennessee 37232-2561,Department of Medicine, Division of Rheumatology and Immunology, Vanderbilt University Medical Center, 1161 21st Ave S, Nashville, TN 37232
| | - Karen A. Hasty
- Department of Orthopaedic Surgery and Biomedical Engineering, Memphis VA Medical Center, 1211 Union Ave. Suite 520 Memphis, TN 38104
| | - Craig L. Duvall
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1161 21st Ave. South, Suite C-3322 Nashville, Tennessee 37232-2561,Correspondence and requests for materials should be addressed to C.L.D.
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7
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Engineered nanoplex mediated targeted miRNA delivery to rescue dying podocytes in diabetic nephropathy. Int J Pharm 2021; 605:120842. [PMID: 34216766 DOI: 10.1016/j.ijpharm.2021.120842] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 06/13/2021] [Accepted: 06/14/2021] [Indexed: 01/08/2023]
Abstract
MicroRNAs (miRNA) is vital for gene expression regulation and normal kidney function. Mainly, miRNA-30a is responsible for the homeostasis of podocytes. In the diabetic nephropathic condition, miRNA-30a is directly and primarily suppressed by hyperglycemic kidney induced Notch signaling pathway leads to podocyte damage and apoptosis. Thus, transferring the exogenous miRNA-30a to podocytes might improve albuminuria as well as podocytes injury. The deprived stability, poor targetability, and low specificity in vivo are critical limitations to attain this objective. This investigation reports the specific and efficient delivery of miRNA-30a mimic via cyclo(RGDfC)-gated polymeric-nanoplexes with dendrimer templates to alleviate podocyte conditions. The nanoplexes able to protect RNase enzyme and to exhibit greater cellular uptake viaαvβ3 receptor selective binding in HG treated podocytes. The nanoplexes up-regulated the expression level of miRNA-30a and repress the elevated Notch-1 signaling in HG exposed podocytes. The critical results of in vivo experimentation attribute marked suppression of Notch-1 in streptozotocin (STZ) induced diabetic C57BL/6 mice and reduced glomerular expansion and fibrosis in the glomerular area. Developed nanoplexes represents an efficient platform for the targeted delivery of exogenous miRNA to podocytes. The approach developed herein could be extrapolated to other gene therapeutics and other kidney-related diseases.
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Wang Y, Shahi PK, Wang X, Xie R, Zhao Y, Wu M, Roge S, Pattnaik BR, Gong S. In vivo targeted delivery of nucleic acids and CRISPR genome editors enabled by GSH-responsive silica nanoparticles. J Control Release 2021; 336:296-309. [PMID: 34174352 DOI: 10.1016/j.jconrel.2021.06.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/01/2021] [Accepted: 06/21/2021] [Indexed: 12/11/2022]
Abstract
The rapid development of gene therapy and genome editing techniques brings up an urgent need to develop safe and efficient nanoplatforms for nucleic acids and CRISPR genome editors. Herein we report a stimulus-responsive silica nanoparticle (SNP) capable of encapsulating biomacromolecules in their active forms with a high loading content and loading efficiency as well as a well-controlled nanoparticle size (~50 nm). A disulfide crosslinker was integrated into the silica network, endowing SNP with glutathione (GSH)-responsive cargo release capability when internalized by target cells. An imidazole-containing component was incorporated into the SNP to enhance the endosomal escape capability. The SNP can deliver various cargos, including nucleic acids (e.g., DNA and mRNA) and CRISPR genome editors (e.g., Cas9/sgRNA ribonucleoprotein (RNP), and RNP with donor DNA) with excellent efficiency and biocompatibility. The SNP surface can be PEGylated and functionalized with different targeting ligands. In vivo studies showed that subretinally injected SNP conjugated with all-trans-retinoic acid (ATRA) and intravenously injected SNP conjugated with GalNAc can effectively deliver mRNA and RNP to murine retinal pigment epithelium (RPE) cells and liver cells, respectively, leading to efficient genome editing. Overall, the SNP is a promising nanoplatform for various applications including gene therapy and genome editing.
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Affiliation(s)
- Yuyuan Wang
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53715, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Pawan K Shahi
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI 53706, USA; McPherson Eye Research Institute, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Xiuxiu Wang
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53715, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Ruosen Xie
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA; Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Yi Zhao
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53715, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Min Wu
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Seth Roge
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Bikash R Pattnaik
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI 53706, USA; McPherson Eye Research Institute, University of Wisconsin-Madison, Madison, WI 53705, USA; Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Shaoqin Gong
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53715, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA; McPherson Eye Research Institute, University of Wisconsin-Madison, Madison, WI 53705, USA; Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53715, USA; Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53715, USA.
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9
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Olim F, Neves AR, Vieira M, Tomás H, Sheng R. Self‐Assembly of Cholesterol‐Doxorubicin and TPGS into Prodrug‐Based Nanoparticles with Enhanced Cellular Uptake and Lysosome‐Dependent Pathway in Breast Cancer Cells. EUR J LIPID SCI TECH 2021. [DOI: 10.1002/ejlt.202000337] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Filipe Olim
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
| | - Ana Rute Neves
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
| | - Mariana Vieira
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
| | - Helena Tomás
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
| | - Ruilong Sheng
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
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10
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Ye Z, Abdelmoaty MM, Ambardekar VV, Curran SM, Dyavar SR, Arnold LL, Cohen SM, Kumar D, Alnouti Y, Coulter DW, Singh RK, Vetro JA. Preliminary preclinical study of Chol-DsiRNA polyplexes formed with PLL[30]-PEG[5K] for the RNAi-based therapy of breast cancer. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2021; 33:102363. [PMID: 33545405 PMCID: PMC8184584 DOI: 10.1016/j.nano.2021.102363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/28/2020] [Accepted: 01/10/2021] [Indexed: 12/11/2022]
Abstract
RNA interference molecules have tremendous potential for cancer therapy but are limited by insufficient potency after i.v. administration. We previously found that Chol-DsiRNA polyplexes formed between cholesterol-modified dicer-substrate siRNA (Chol-DsiRNA) and the cationic diblock copolymer PLL[30]-PEG[5K] greatly increase the activity of Chol-DsiRNA against a stably expressed reporter mRNA in primary murine syngeneic breast tumors after daily i.v. dosing. Here, we provide a more thorough preliminary preclinical study of Chol-DsiRNA polyplexes against the therapeutically relevant target protein, STAT3. We found that Chol-DsiSTAT3 polyplexes greatly increase plasma exposure, distribution, potency, and therapeutic activity of Chol-DsiSTAT3 in primary murine syngeneic 4T1 breast tumors after i.v. administration. Furthermore, inactive Chol-DsiCTRL polyplexes are well tolerated by healthy female BALB/c mice after chronic i.v. administration at 50 mg Chol-DsiCTRL/kg over 28 days. Thus, Chol-DsiRNA polyplexes may be a good candidate for Phase I clinical trials to improve the treatment of breast cancer and other solid tumors.
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Affiliation(s)
- Zhen Ye
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Mai Mohamed Abdelmoaty
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA; Therapeutic Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Giza, Egypt
| | - Vishakha V Ambardekar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Stephen M Curran
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Shetty Ravi Dyavar
- Department of Pharmacy Practice, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Lora L Arnold
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Samuel M Cohen
- Havlik-Wall Professor of Oncology, University of Nebraska Medical Center, Omaha, NE, USA; Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Devendra Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yazen Alnouti
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Don W Coulter
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Department of Radiation Oncology, J. Bruce Henriksen Cancer Research Laboratories, University of Nebraska Medical Center, Omaha, NE, USA
| | - Rakesh K Singh
- Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA; Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Joseph A Vetro
- Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA; Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA.
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11
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Li L, Tian H, He J, Zhang M, Li Z, Ni P. Fabrication of aminated poly(glycidyl methacrylate)-based polymers for co-delivery of anticancer drugs and the p53 gene. J Mater Chem B 2021; 8:9555-9565. [PMID: 33001126 DOI: 10.1039/d0tb01811b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Aminated poly(glycidyl methacrylate)s-based polymers for gene delivery not only can reduce toxicity and improve solubility, but can improve gene transfection efficiency and reduce protein aggregation. In this study, we first prepared poly(glycidyl methacrylate) (PGMA) via reversible addition-fragmentation chain transfer (RAFT) polymerization, and then the obtained PGMA homopolymer was post-modified with ethanol amine (EA), 1-amino-2-propanol (AP), 3-(dibutylamino)propylamine (DA) and N-(2-hydroxyethyl)ethylenediamine (HA), respectively, to yield four kinds of PGMA-based gene vectors containing hydroxyl groups (abbreviated as PGEA, PGAP, PGDA and PGHA). The effects of the different side chains and hydroxyl groups on the biological properties of these four cationic polymers were investigated. We found that the transfection efficiency of the PGHA/p53 complex was higher than those of the other three polymer/gene complexes through MTT assay and laser scanning confocal microscopy. Hence, we chose HA for further post-modification to fabricate a cationic copolymer, PCL-ss-P(PEGMA-co-GHA) (abbreviated as PGHAP), via a combination of ring opening polymerization (ROP) and RAFT copolymerization. The PCL-ss-P(PEGMA-co-GHA) amphiphilic copolymer could self-assemble into nanoparticles, which could be used to encapsulate anticancer drug doxorubicin (DOX) and compress the p53 gene to form the DOX-loaded PCL-ss-P(PEGMA-co-GHA)/p53 complex (abbreviated as DPGHAP/p53). The gel retardation assay showed that p53 gene could be well immobilized and remained stable under the electronegative conditions. MTT assay showed that the DPGHAP/p53 complex had a significant antitumor effect on A549 cells and H1299 cells compared with free DOX or/and p53 gene therapy alone. Furthermore, the test results from live cell imaging systems revealed that the DPGHAP/p53 complexes could effectively deliver DOX and the p53 gene into A549 cells. Therefore, the constructed cationic polymer PCL-ss-P(PEGMA-co-GHA) has potential application prospects as a co-vector of anticancer drugs and genes.
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Affiliation(s)
- Lei Li
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China. and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hongrui Tian
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China.
| | - Jinlin He
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China.
| | - Mingzu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China.
| | - Zuguang Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Peihong Ni
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China.
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12
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Ryu YC, Kim KA, Kim BC, Wang HMD, Hwang BH. Novel fusion peptide-mediated siRNA delivery using self-assembled nanocomplex. J Nanobiotechnology 2021; 19:44. [PMID: 33579303 PMCID: PMC7881583 DOI: 10.1186/s12951-021-00791-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 02/03/2021] [Indexed: 02/07/2023] Open
Abstract
Background Gene silencing using siRNA can be a new potent strategy to treat many incurable diseases at the genetic level, including cancer and viral infections. Treatments using siRNA essentially requires an efficient and safe method of delivering siRNA into cells while maintaining its stability. Thus, we designed novel synergistic fusion peptides, i.e., SPACE and oligoarginine. Results Among the novel fusion peptides and siRNAs, nanocomplexes have enhanced cellular uptake and gene silencing effect in vitro and improved retention and gene silencing effects of siRNAs in vivo. Oligoarginine could attract siRNAs electrostatically to form stable and self-assembled nanocomplexes, and the SPACE peptide could interact with the cellular membrane via hydrogen bonding. Therefore, nanocomplexes using fusion peptides showed improved and evident cellular uptake and gene silencing of glyceraldehyde 3-phosphate dehydrogenase (GAPDH) via the lipid raft-mediated endocytosis pathway, especially to the HDFn cells of the skin, and all of the fusion peptides were biocompatible. Also, intratumorally injected nanocomplexes had increased retention time of siRNAs at the site of the tumor. Finally, nanocomplexes demonstrated significant in vivo gene silencing effect without overt tissue damage and immune cell infiltration. Conclusions The new nanocomplex strategy could become a safe and efficient platform for the delivery of siRNAs into cells and tissues to treat various target diseases through gene silencing.![]()
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Affiliation(s)
- Yeong Chae Ryu
- Department of Bioengineering and Nano-bioengineering, Incheon National University, Academy-ro 119, Yeonsu-gu, Incheon, 22012, Korea
| | - Kyung Ah Kim
- Department of Bioengineering and Nano-bioengineering, Incheon National University, Academy-ro 119, Yeonsu-gu, Incheon, 22012, Korea
| | - Byoung Choul Kim
- Department of Bioengineering and Nano-bioengineering, Incheon National University, Academy-ro 119, Yeonsu-gu, Incheon, 22012, Korea.,Division of Bioengineering, Incheon National University, Incheon, 22012, Korea
| | - Hui-Min David Wang
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
| | - Byeong Hee Hwang
- Department of Bioengineering and Nano-bioengineering, Incheon National University, Academy-ro 119, Yeonsu-gu, Incheon, 22012, Korea. .,Division of Bioengineering, Incheon National University, Incheon, 22012, Korea.
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13
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Jackson MA, Patel SS, Yu F, Cottam MA, Glass EB, Hoogenboezem EN, Fletcher RB, Dollinger BR, Patil P, Liu DD, Kelly IB, Bedingfield SK, King AR, Miles RE, Hasty AM, Giorgio TD, Duvall CL. Kupffer cell release of platelet activating factor drives dose limiting toxicities of nucleic acid nanocarriers. Biomaterials 2021; 268:120528. [PMID: 33285438 PMCID: PMC7856291 DOI: 10.1016/j.biomaterials.2020.120528] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 10/08/2020] [Accepted: 11/04/2020] [Indexed: 01/06/2023]
Abstract
This work establishes that Kupffer cell release of platelet activating factor (PAF), a lipidic molecule with pro-inflammatory and vasoactive signaling properties, dictates dose-limiting siRNA nanocarrier-associated toxicities. High-dose intravenous injection of siRNA-polymer nano-polyplexes (si-NPs) elicited acute, shock-like symptoms in mice, associated with increased plasma PAF and consequently reduced PAF acetylhydrolase (PAF-AH) activity. These symptoms were completely prevented by prophylactic PAF receptor inhibition or Kupffer cell depletion. Assessment of varied si-NP chemistries confirmed that toxicity level correlated to relative uptake of the carrier by liver Kupffer cells and that this toxicity mechanism is dependent on carrier endosome disruptive function. 4T1 tumor-bearing mice, which exhibit increased circulating leukocytes, displayed greater sensitivity to these toxicities. PAF-mediated toxicities were generalizable to commercial delivery reagent in vivo-jetPEI® and an MC3 lipid formulation matched to an FDA-approved nanomedicine. These collective results establish Kupffer cell release of PAF as a key mediator of siRNA nanocarrier toxicity and identify PAFR inhibition as an effective strategy to increase siRNA nanocarrier tolerated dose.
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Affiliation(s)
- Meredith A Jackson
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Shrusti S Patel
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Fang Yu
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Matthew A Cottam
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Evan B Glass
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Ella N Hoogenboezem
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - R Brock Fletcher
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Bryan R Dollinger
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Prarthana Patil
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Danielle D Liu
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Isom B Kelly
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Sean K Bedingfield
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Allyson R King
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Rachel E Miles
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Alyssa M Hasty
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA; Veterans Affairs Tennessee Valley Healthcare System, Nashville, TN, 37212, USA
| | - Todd D Giorgio
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Craig L Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
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14
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Jacobson ME, Becker KW, Palmer CR, Pastora LE, Fletcher RB, Collins KA, Fedorova O, Duvall CL, Pyle AM, Wilson JT. Structural Optimization of Polymeric Carriers to Enhance the Immunostimulatory Activity of Molecularly Defined RIG-I Agonists. ACS CENTRAL SCIENCE 2020; 6:2008-2022. [PMID: 33274278 PMCID: PMC7706089 DOI: 10.1021/acscentsci.0c00568] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Indexed: 05/03/2023]
Abstract
RNA ligands of retinoic acid-inducible gene I (RIG-I) hold significant promise as antiviral agents, vaccine adjuvants, and cancer immunotherapeutics, but their efficacy is hindered by inefficient intracellular delivery to the cytosol where RIG-I is localized. Here, we address this challenge through the synthesis and evaluation of a library of polymeric carriers rationally designed to promote the endosomal escape of 5'-triphosphate RNA (3pRNA) RIG-I agonists. We synthesized a series of PEG-block-(DMAEMA-co-A n MA) polymers, where A n MA is an alkyl methacrylate monomer ranging from n = 2-12 carbons, of variable composition, and examined effects of polymer structure on the intracellular delivery of 3pRNA. Through in vitro screening of 30 polymers, we identified four lead carriers (4-50, 6-40, 8-40, and 10-40, where the first number refers to the alkyl chain length and the second number refers to the percentage of hydrophobic monomer) that packaged 3pRNA into ∼100-nm-diameter particles and significantly enhanced its immunostimulatory activity in multiple cell types. In doing so, these studies also revealed an interplay between alkyl chain length and monomer composition in balancing RNA loading, pH-responsive properties, and endosomal escape, studies that establish new structure-activity relationships for polymeric delivery of 3pRNA and other nucleic acid therapeutics. Importantly, lead carriers enabled intravenous administration of 3pRNA in mice, resulting in increased RIG-I activation as measured by increased levels of IFN-α in serum and elevated expression of Ifnb1 and Cxcl10 in major clearance organs, effects that were dependent on polymer composition. Collectively, these studies have yielded novel polymeric carriers designed and optimized specifically to enhance the delivery and activity of 3pRNA with potential to advance the clinical development of RIG-I agonists.
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Affiliation(s)
- Max E. Jacobson
- Department
of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Kyle W. Becker
- Department
of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Christian R. Palmer
- Department
of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Lucinda E. Pastora
- Department
of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - R. Brock Fletcher
- Department
of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Kathryn A. Collins
- Department
of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Olga Fedorova
- Department
of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
| | - Craig L. Duvall
- Department
of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Anna M. Pyle
- Department
of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
- Department
of Chemistry, Howard Hughes Medical Institute, Yale University, New Haven, Connecticut 06511, United States
| | - John. T. Wilson
- Department
of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
- Department
of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
- Vanderbilt
Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
- Vanderbilt
Center for Immunobiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
- Vanderbilt
Institute of Chemical Biology, Vanderbilt
University, Nashville, Tennessee 37232, United States
- Vanderbilt
Institute of Nanoscale Science and Engineering, Vanderbilt University, Nashville, Tennessee 37232, United States
- Vanderbilt-Ingram
Cancer Center, Vanderbilt University Medical
Center, Nashville, Tennessee 37232, United States
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15
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Raval N, Jogi H, Gondaliya P, Kalia K, Tekade RK. Cyclo-RGD Truncated Polymeric Nanoconstruct with Dendrimeric Templates for Targeted HDAC4 Gene Silencing in a Diabetic Nephropathy Mouse Model. Mol Pharm 2020; 18:641-666. [PMID: 32453574 DOI: 10.1021/acs.molpharmaceut.0c00094] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Diabetic nephropathy (DN), a chronic progressive kidney disease, is a significant complication of diabetes mellitus. Dysregulation of the histone deacetylases (HDACs) gene has been implicated in the pathogenesis of DN. Hence, the HDAC-inhibitors have emerged as a critical class of therapeutic agents in DN; however, the currently available HDAC4-inhibitors are mostly nonselective in nature as well as inhibit multiple HDACs. RNA interference of HDAC4 (HDAC4 siRNA) has shown immense promise, but the clinical translation has been impeded due to lack of a targeted, specific, and in vivo applicable delivery modality. In the present investigation, we examined Cyclo(RGDfC) (cRGD) truncated polymeric nanoplex with dendrimeric templates for targeted HDAC4 Gene Silencing. The developed nanoplex exhibited enhanced encapsulation of siRNA and offered superior protection against serum RNase nucleases degradation. The nanoplex was tested on podocytes (in vitro), wherein it showed selective binding to the αvβ3 integrin receptor, active cellular uptake, and significant in vitro gene silencing. The in vivo experiments showed remarkable suppression of the HDAC4 and inhibition in the progression of renal fibrosis in the Streptozotocin (STZ) induced DN C57BL/6 mice model. Histopathological and toxicological studies revealed nonsignificant abnormality/toxicity with the nanoplex. Conclusively, nanoplex was found as a promising tactic for targeted therapy of podocytes and could be extended for other kidney-related ailments.
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Affiliation(s)
- Nidhi Raval
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Hardi Jogi
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Piyush Gondaliya
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Kiran Kalia
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Rakesh K Tekade
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
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16
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Mohanty B, Pal K, Quereshi D, Nayak SK, Rathnam VSS, Banerjee I, Anis A, Barik CS, Sarkar P, Rout SK. Oleogels Based on Palmitic Acid and Safflower Oil: Novel Formulations for Ocular Drug Delivery of Voriconazole. EUR J LIPID SCI TECH 2020. [DOI: 10.1002/ejlt.201900288] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Kunal Pal
- Department of Biotechnology and Medical Engineering National Institute of Technology Rourkela‐769008 India
| | - Dilshad Quereshi
- Department of Biotechnology and Medical Engineering National Institute of Technology Rourkela‐769008 India
| | - Suraj K. Nayak
- Department of Biotechnology and Medical Engineering National Institute of Technology Rourkela‐769008 India
| | | | - Indranil Banerjee
- Department of Biotechnology and Medical Engineering National Institute of Technology Rourkela‐769008 India
| | - Arfat Anis
- Department of Chemical Engineering King Saud University Riyadh‐11362 Saudi Arabia
| | | | - Preetam Sarkar
- Department of Food Process Engineering National Institute of Technology Rourkela‐769008 India
| | - Susanta Kumar Rout
- Science & Technology Department Odisha Secretariat Bhubaneswar‐751001 Odisha India
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17
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Method and its Composition for encapsulation, stabilization, and delivery of siRNA in Anionic polymeric nanoplex: An In vitro- In vivo Assessment. Sci Rep 2019; 9:16047. [PMID: 31690769 PMCID: PMC6831632 DOI: 10.1038/s41598-019-52390-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/12/2019] [Indexed: 12/13/2022] Open
Abstract
Small interfering RNA (siRNA) are synthetic RNA duplex designed to specifically knockdown the abnormal gene to treat a disease at cellular and molecular levels. In spite of their high potency, specificity, and therapeutic potential, the full-fledged utility of siRNA is predominantly limited to in vitro set-up. Till date, Onpattro is the only USFDA approved siRNA therapeutics available in the clinic. The lack of a reliable in vivo siRNA delivery carrier remains a foremost obstacle towards the clinical translation of siRNA therapeutics. To address the obstacles associated with siRNA delivery, we tested a dendrimer-templated polymeric approach involving a USFDA approved carrier (albumin) for in vitro as well as in vivo delivery of siRNA. The developed approach is simple in application, enhances the serum stability, avoids in vivo RNase-degradation and mediates cytosolic delivery of siRNA following the endosomal escape process. The successful in vitro and in vivo delivery of siRNA, as well as targeted gene knockdown potential, was demonstrated by HDAC4 inhibition in vitro diabetic nephropathy (DN) podocyte model as well as in vivo DN C57BL/6 mice model. The developed approach has been tested using HDAC4 siRNA as a model therapeutics, while the application can also be extended to other gene therapeutics including micro RNA (miRNA), plasmids oligonucleotides, etc.
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18
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Li C, Wang J, Wang Y, Gao H, Wei G, Huang Y, Yu H, Gan Y, Wang Y, Mei L, Chen H, Hu H, Zhang Z, Jin Y. Recent progress in drug delivery. Acta Pharm Sin B 2019; 9:1145-1162. [PMID: 31867161 PMCID: PMC6900554 DOI: 10.1016/j.apsb.2019.08.003] [Citation(s) in RCA: 404] [Impact Index Per Article: 80.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 07/10/2019] [Accepted: 07/16/2019] [Indexed: 01/05/2023] Open
Abstract
Drug delivery systems (DDS) are defined as methods by which drugs are delivered to desired tissues, organs, cells and subcellular organs for drug release and absorption through a variety of drug carriers. Its usual purpose to improve the pharmacological activities of therapeutic drugs and to overcome problems such as limited solubility, drug aggregation, low bioavailability, poor biodistribution, lack of selectivity, or to reduce the side effects of therapeutic drugs. During 2015-2018, significant progress in the research on drug delivery systems has been achieved along with advances in related fields, such as pharmaceutical sciences, material sciences and biomedical sciences. This review provides a concise overview of current progress in this research area through its focus on the delivery strategies, construction techniques and specific examples. It is a valuable reference for pharmaceutical scientists who want to learn more about the design of drug delivery systems.
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Affiliation(s)
- Chong Li
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Jiancheng Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yiguang Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Huile Gao
- Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Gang Wei
- Key Laboratory of Smart Drug Delivery, Ministry of Education, Fudan University, Shanghai 201203, China
| | - Yongzhuo Huang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Haijun Yu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yong Gan
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yongjun Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Lin Mei
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Huabing Chen
- School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
| | - Haiyan Hu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhiping Zhang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yiguang Jin
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
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19
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Baljon JJ, Dandy A, Wang-Bishop L, Wehbe M, Jacobson ME, Wilson JT. The efficiency of cytosolic drug delivery using pH-responsive endosomolytic polymers does not correlate with activation of the NLRP3 inflammasome. Biomater Sci 2019; 7:1888-1897. [PMID: 30843539 PMCID: PMC6478565 DOI: 10.1039/c8bm01643g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Inefficient cytosolic delivery has limited the development of many promising biomacromolecular drugs, a long-standing challenge that has prompted extensive development of drug carriers that facilitate endosomal escape. Although many such carriers have shown considerable promise for cytosolic delivery of a diversity of therapeutics, the rupture or destabilization of endo/lysosomal membranes has also been associated with activation of the inflammasome with attendant risk of inflammation and toxicity. In this study, we investigated relationships between pH-dependent membrane destabilization, cytosolic drug delivery, and inflammasome activation using a series of well-defined poly[(ethylene glycol)-block-[(2-(dimethylamino)ethyl methacrylate)-co-(butyl methacrylate)] copolymers of variable second block composition and pH-responsive properties. We found that polymers that demonstrated the most potent membrane-destabilizing activity at early endosomal pH values in an erythrocyte hemolysis assay were most efficient at delivery of siRNA, yet tended to be associated with the least amount of NOD-like related protein 3 (NLRP3) inflammasome activation. By contrast, polymers that displayed minimal hemolysis activity and poor siRNA knockdown, and instead mediated lysosomal rupture likely due to a proton sponge mechanism, strongly induced NLPR3 inflammasome activation in a caspase- and cathepsin-dependent manner. Collectively, these findings reinforce the importance of early endosomal escape in minimizing inflammasome activation and also demonstrate the ability to tune the degree inflammasome activation via control of polymer structure with potential implications for design of vaccine adjuvants and immunotherapeutics.
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20
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Kilchrist KV, Dimobi SC, Jackson MA, Evans BC, Werfel TA, Dailing EA, Bedingfield SK, Kelly IB, Duvall CL. Gal8 Visualization of Endosome Disruption Predicts Carrier-Mediated Biologic Drug Intracellular Bioavailability. ACS NANO 2019; 13:1136-1152. [PMID: 30629431 PMCID: PMC6995262 DOI: 10.1021/acsnano.8b05482] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Endolysosome entrapment is one of the key barriers to the therapeutic use of biologic drugs that act intracellularly. The screening of prospective nanoscale endosome-disrupting delivery technologies is currently limited by methods that are indirect and cumbersome. Here, we statistically validate Galectin 8 (Gal8) intracellular tracking as a superior approach that is direct, quantitative, and predictive of therapeutic cargo intracellular bioactivity through in vitro high-throughput screening and in vivo validation. Gal8 is a cytosolically dispersed protein that, when endosomes are disrupted, redistributes by binding to glycosylation moieties selectively located on the inner face of endosomal membranes. The quantitative redistribution of a Gal8 fluorescent fusion protein from the cytosol into endosomes is demonstrated as a real-time, live-cell assessment of endosomal integrity that does not require labeling or modification of either the carrier or the biologic drug and that allows quantitative distinction between closely related, endosome-disruptive drug carriers. Through screening two families of siRNA polymeric carrier compositions at varying dosages, we show that Gal8 endosomal recruitment correlates strongly ( r = 0.95 and p < 10-4) with intracellular siRNA bioactivity. Through this screen, we gathered insights into how composition and molecular weight affect endosome disruption activity of poly[(ethylene glycol)- b-[(2-(dimethylamino)ethyl methacrylate)- co-(butyl methacrylate)]] [PEG-(DMAEMA- co-BMA)] siRNA delivery systems. Additional studies showed that Gal8 recruitment predicts intracellular bioactivity better than current standard methods such as Lysotracker colocalization ( r = 0.35, not significant), pH-dependent hemolysis (not significant), or cellular uptake ( r = 0.73 and p < 10-3). Importantly, the Gal8 recruitment method is also amenable to fully objective high-throughput screening using automated image acquisition and quantitative image analysis, with a robust estimated Z' of 0.6 (whereas assays with Z' > 0 have high-throughput screening utility). Finally, we also provide measurements of in vivo endosomal disruption based on Gal8 visualization ( p < 0.03) of a nanocarrier formulation confirmed to produce significant cytosolic delivery and bioactivity of siRNA within tumors ( p < 0.02). In sum, this report establishes the utility of Gal8 subcellular tracking for the rapid optimization and high-throughput screening of the endosome disruption potency of intracellular delivery technologies.
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Affiliation(s)
- Kameron V. Kilchrist
- Department of Biomedical Engineering, Vanderbilt University, PMB 351634, Nashville, Tennessee 37235, United States
| | - Somtochukwu C. Dimobi
- Department of Biomedical Engineering, Vanderbilt University, PMB 351634, Nashville, Tennessee 37235, United States
| | - Meredith A. Jackson
- Department of Biomedical Engineering, Vanderbilt University, PMB 351634, Nashville, Tennessee 37235, United States
| | - Brian C. Evans
- Department of Biomedical Engineering, Vanderbilt University, PMB 351634, Nashville, Tennessee 37235, United States
| | | | - Eric A. Dailing
- Department of Biomedical Engineering, Vanderbilt University, PMB 351634, Nashville, Tennessee 37235, United States
| | - Sean K. Bedingfield
- Department of Biomedical Engineering, Vanderbilt University, PMB 351634, Nashville, Tennessee 37235, United States
| | - Isom B. Kelly
- Department of Biomedical Engineering, Vanderbilt University, PMB 351634, Nashville, Tennessee 37235, United States
| | - Craig L. Duvall
- Department of Biomedical Engineering, Vanderbilt University, PMB 351634, Nashville, Tennessee 37235, United States
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21
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Wang Y, Ye M, Xie R, Gong S. Enhancing the In Vitro and In Vivo Stabilities of Polymeric Nucleic Acid Delivery Nanosystems. Bioconjug Chem 2019; 30:325-337. [PMID: 30592619 PMCID: PMC6941189 DOI: 10.1021/acs.bioconjchem.8b00749] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Gene therapy holds great promise for various medical and biomedical applications. Nonviral gene delivery systems formed by cationic polymer and nucleic acids (e.g., polyplexes) have been extensively investigated for targeted gene therapy; however, their in vitro and in vivo stability is affected by both their intrinsic properties such as chemical compositions (e.g., polymer molecular weight and structure, and N/P ratio) and a number of environmental factors (e.g., shear stress during circulation in the bloodstream, interaction with the serum proteins, and physiological ionic strength). In this review, we surveyed the effects of a number of important intrinsic and environmental factors on the stability of polymeric gene delivery systems, and discussed various strategies to enhance the stability of polymeric gene delivery systems, thereby enabling efficient gene delivery into target cells. Future opportunities and challenges of polymeric nucleic acid delivery nanosystems were also briefly discussed.
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Affiliation(s)
- Yuyuan Wang
- Department of Materials Science and Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
| | - Mingzhou Ye
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
| | - Ruosen Xie
- Department of Materials Science and Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
| | - Shaoqin Gong
- Department of Materials Science and Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
- Department of Chemistry, University of Wisconsin–Madison, Madison, Wisconsin 53715, United States
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22
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Jackson MA, Bedingfield SK, Yu F, Stokan ME, Miles RE, Curvino EJ, Hoogenboezem EN, Bonami RH, Patel SS, Kendall PL, Giorgio TD, Duvall CL. Dual carrier-cargo hydrophobization and charge ratio optimization improve the systemic circulation and safety of zwitterionic nano-polyplexes. Biomaterials 2019; 192:245-259. [PMID: 30458360 PMCID: PMC6534819 DOI: 10.1016/j.biomaterials.2018.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/08/2018] [Accepted: 11/09/2018] [Indexed: 12/27/2022]
Abstract
While polymeric nano-formulations for RNAi therapeutics hold great promise for molecularly-targeted, personalized medicine, they possess significant systemic delivery challenges including rapid clearance from circulation and the potential for carrier-associated toxicity due to cationic polymer or lipid components. Herein, we evaluated the in vivo pharmacokinetic and safety impact of often-overlooked formulation parameters, including the ratio of carrier polymer to cargo siRNA and hydrophobic siRNA modification in combination with hydrophobic polymer components (dual hydrophobization). For these studies, we used nano-polyplexes (NPs) with well-shielded, zwitterionic coronas, resulting in various NP formulations of equivalent hydrodynamic size and neutral surface charge regardless of charge ratio. Doubling nano-polyplex charge ratio from 10 to 20 increased circulation half-life five-fold and pharmacokinetic area under the curve four-fold, but was also associated with increased liver enzymes, a marker of hepatic damage. Dual hydrophobization achieved by formulating NPs with palmitic acid-modified siRNA (siPA-NPs) both reduced the amount of carrier polymer required to achieve optimal pharmacokinetic profiles and abrogated liver toxicities. We also show that optimized zwitterionic siPA-NPs are well-tolerated upon long-term, repeated administration in mice and exhibit greater than two-fold increased uptake in orthotopic MDA-MB-231 xenografts compared to commercial transfection reagent, in vivo-jetPEI®. These data suggest that charge ratio optimization has important in vivo implications and that dual hydrophobization strategies can be used to maximize both NP circulation time and safety.
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Affiliation(s)
- Meredith A. Jackson
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Sean K. Bedingfield
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Fang Yu
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Mitchell E. Stokan
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Rachel E. Miles
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | | | | | - Rachel H. Bonami
- Department of Medicine, Division of Rheumatology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Shrusti S. Patel
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Peggy L. Kendall
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Todd D. Giorgio
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Craig L. Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA,Corresponding author. (C.L. Duvall)
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23
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Tanaka J, Moriceau G, Cook A, Kerr A, Zhang J, Peltier R, Perrier S, Davis TP, Wilson P. Tuning the Structure, Stability, and Responsivity of Polymeric Arsenical Nanoparticles Using Polythiol Cross-Linkers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02459] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Joji Tanaka
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
| | - Guillaume Moriceau
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
| | - Alexander Cook
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
| | - Andrew Kerr
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
| | - Junliang Zhang
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
| | - Raoul Peltier
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
| | - Sebastien Perrier
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
| | - Thomas P. Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - Paul Wilson
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 399 Royal Parade, Parkville, Victoria 3152, Australia
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24
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Li H, Zhang Z, Bao X, Xu G, Yao P. Fatty acid and quaternary ammonium modified chitosan nanoparticles for insulin delivery. Colloids Surf B Biointerfaces 2018; 170:136-143. [DOI: 10.1016/j.colsurfb.2018.05.063] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/08/2018] [Accepted: 05/27/2018] [Indexed: 11/25/2022]
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25
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Wang Y, Ma B, Abdeen AA, Chen G, Xie R, Saha K, Gong S. Versatile Redox-Responsive Polyplexes for the Delivery of Plasmid DNA, Messenger RNA, and CRISPR-Cas9 Genome-Editing Machinery. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31915-31927. [PMID: 30222305 PMCID: PMC6530788 DOI: 10.1021/acsami.8b09642] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Gene therapy holds great promise for the treatment of many diseases, but clinical translation of gene therapies has been slowed down by the lack of safe and efficient gene delivery systems. Here, we report two versatile redox-responsive polyplexes (i.e., cross-linked and non-crosslinked) capable of efficiently delivering a variety of negatively charged payloads including plasmid DNA (DNA), messenger RNA, Cas9/sgRNA ribonucleoprotein (RNP), and RNP-donor DNA complexes (S1mplex) without any detectable cytotoxicity. The key component of both types of polyplexes is a cationic poly( N, N'-bis(acryloyl)cystamine- co-triethylenetetramine) polymer [a type of poly( N, N'-bis(acryloyl)cystamine-poly(aminoalkyl)) (PBAP) polymer] containing disulfide bonds in the backbone and bearing imidazole groups. This composition enables efficient encapsulation, cellular uptake, controlled endo/lysosomal escape, and cytosolic unpacking of negatively charged payloads. To further enhance the stability of non-crosslinked PBAP polyplexes, adamantane (AD) and β-cyclodextrin (β-CD) were conjugated to the PBAP-based polymers. The cross-linked PBAP polyplexes formed by host-guest interaction between β-CD and AD were more stable than non-crosslinked PBAP polyplexes in the presence of polyanionic polymers such as serum albumin, suggesting enhanced stability in physiological conditions. Both cross-linked and non-crosslinked polyplexes demonstrated either similar or better transfection and genome-editing efficiencies, and significantly better biocompatibility than Lipofectamine 2000, a commercially available state-of-the-art transfection agent that exhibits cytotoxicity.
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Affiliation(s)
- Yuyuan Wang
- Department of Materials Science and Engineering, University of Wisconsin–Madison, Madison, WI 53715, USA
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI 53715, USA
| | - Ben Ma
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI 53715, USA
- The Second Department of Hepatobiliary Surgery, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Amr A. Abdeen
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI 53715, USA
| | - Guojun Chen
- Department of Materials Science and Engineering, University of Wisconsin–Madison, Madison, WI 53715, USA
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI 53715, USA
| | - Ruosen Xie
- Department of Materials Science and Engineering, University of Wisconsin–Madison, Madison, WI 53715, USA
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI 53715, USA
| | - Krishanu Saha
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI 53715, USA
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, WI 53715, USA
- Corresponding authors. ;
| | - Shaoqin Gong
- Department of Materials Science and Engineering, University of Wisconsin–Madison, Madison, WI 53715, USA
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI 53715, USA
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, WI 53715, USA
- Department of Chemistry, University of Wisconsin–Madison, Madison, WI 53715, USA
- Corresponding authors. ;
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26
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Hong WG, Jeong GW, Nah JW. Evaluation of hyaluronic acid-combined ternary complexes for serum-resistant and targeted gene delivery system. Int J Biol Macromol 2018; 115:459-468. [PMID: 29680502 DOI: 10.1016/j.ijbiomac.2018.04.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 03/28/2018] [Accepted: 04/10/2018] [Indexed: 10/17/2022]
Abstract
Branched polyethylenimine (bPEI) was well known as high transfection agent, which has many amine group. However, utilization of bPEI was limited due to high toxicity. To solve these problems, bPEI was introduced to low molecular weight water-soluble chitosan (LMWSC) with coupling agent. In addition, hyaluronic acid (HA), one of natural anion polymer, was introduced to binary complex of pDNA/bPEI-grafted LMWSC (LMPEI) to target the specific cancer cell and impart the serum resistant. Ternary complexes of pDNA/LMPEI/HA were prepared by electrostatic charge interaction and their binding affinity and DNase protection assay were conducted by gel retardation assay. Particle size of ternary complexes showed that had each 482 ± 245.4 (pDNA/LMPEI2%/HA, 1:16:1, w/w/w) and 410 ± 78.5 nm (pDNA/LMPEI4%/HA, 1:16:2, w/w/w). Moreover, to demonstrate serum-resistant effect of ternary complexes, particle size of them was measured according to incubated time (0-10 h) under serum condition. Transfection assay of ternary complexes showed that their transfection efficiency in CD44-receptor overexpressed HCT116 cell was higher than CD44-receptor negative CT26 cell. Additionally, intracellular uptake of ternary complexes with propidium iodide (PI)-labeled pDNA was observed to confirm targeting effect and cellular internalization by fluorescence microscopy. These results suggest that ternary complexes are superb gene carrier with excellent serum-resistant and high gene transfection.
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Affiliation(s)
- Woong-Gil Hong
- Department of Polymer Science and Engineering, Sunchon National University, Jeonnam 57922, Republic of Korea
| | - Gyeong-Won Jeong
- Department of Polymer Science and Engineering, Sunchon National University, Jeonnam 57922, Republic of Korea
| | - Jae-Woon Nah
- Department of Polymer Science and Engineering, Sunchon National University, Jeonnam 57922, Republic of Korea.
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27
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Keles E, Song Y, Du D, Dong WJ, Lin Y. Recent progress in nanomaterials for gene delivery applications. Biomater Sci 2018; 4:1291-309. [PMID: 27480033 DOI: 10.1039/c6bm00441e] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nanotechnology-based gene delivery is the division of nanomedicine concerned with the synthesis, characterization, and functionalization of nanomaterials to be used in targeted-gene delivery applications. Nanomaterial-based gene delivery systems hold great promise for curing fatal inherited and acquired diseases, including neurological disorders, cancer, cardiovascular diseases, and acquired immunodeficiency syndrome (AIDS). However, their use in clinical applications is still controversial. To date, the Food and Drug Administration (FDA) has not approved any gene delivery system because of the unknown long-term toxicity and the low gene transfection efficiency of nanomaterials in vivo. Compared to viral vectors, nonviral gene delivery vectors are characterized by a low preexisting immunogenicity, which is important for preventing a severe immune response. In addition, nonviral vectors provide higher loading capacity and ease of fabrication. For these reasons, this review article focuses on applications of nonviral gene delivery systems, including those based on lipids, polymers, graphene, and other inorganic nanoparticles, and discusses recent advances in nanomaterials for gene therapy. Methods of synthesizing these nanomaterials are briefly described from a materials science perspective. Also, challenges, critical issues, and concerns about the in vivo applications of nanomaterial-based gene delivery systems are discussed. It should be noted that this article is not a comprehensive review of the literature.
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Affiliation(s)
- Erhan Keles
- Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
| | - Yang Song
- Department of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
| | - Dan Du
- Department of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
| | - Wen-Ji Dong
- Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA and Department of Integrated Physiology and Neuroscience, Washington State University, Pullman, WA 99164, USA
| | - Yuehe Lin
- Department of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
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28
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Complexation of Chol-DsiRNA in place of Chol-siRNA greatly increases the duration of mRNA suppression by polyplexes of PLL(30)-PEG(5K) in primary murine syngeneic breast tumors after i.v. administration. Int J Pharm 2018; 543:130-138. [PMID: 29601972 DOI: 10.1016/j.ijpharm.2018.03.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 01/25/2018] [Accepted: 03/24/2018] [Indexed: 01/22/2023]
Abstract
RNA interference has tremendous potential for cancer therapy but is limited by the insufficient potency of RNAi molecules after i.v. administration. We previously found that complexation with PLL(30)-PEG(5K) greatly increases the potency of 3'-cholesterol-modified siRNA [Chol-siRNA] in primary murine syngeneic 4T1 breast tumors after i.v. administration but mRNA suppression decreases 24 h after the final dose. We hypothesized that complexation of cholesterol-modified Dicer-substrate siRNA (Chol-DsiRNA) in place of Chol-siRNA can increase the potency and duration of suppression by polyplexes of PLL(30)-PEG(5K) in solid tumors. We found that replacing Chol-siRNA with Chol-DsiRNA increased polyplex loading and nuclease protection, suppressed stably expressed luciferase to the same extent in primary murine 4T1-Luc breast tumors under the current dosage regimen, but maintained suppression ~72 h after the final dose. The kinetics of suppression in 4T1-Luc over 72 h, however, were similar between DsiLuc and siLuc after electroporation and between polyplexes of Chol-DsiLuc and Chol-siLuc after transfection, suggesting that Chol-DsiRNA polyplexes increase the duration of mRNA suppression through differences in polyplex activities in vivo. Thus, replacing Chol-siRNA with Chol-DsiRNA may significantly increase the duration of mRNA suppression by polyplexes of PLL(30)-PEG(5K) and possibly other PEGylated polycationic polymers in primary tumors and metastases after i.v. administration.
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29
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Korin E, Bejerano T, Cohen S. GalNAc bio-functionalization of nanoparticles assembled by electrostatic interactions improves siRNA targeting to the liver. J Control Release 2017; 266:310-320. [DOI: 10.1016/j.jconrel.2017.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/02/2017] [Accepted: 10/02/2017] [Indexed: 02/01/2023]
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30
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Lipophilic siRNA targets albumin in situ and promotes bioavailability, tumor penetration, and carrier-free gene silencing. Proc Natl Acad Sci U S A 2017; 114:E6490-E6497. [PMID: 28739942 DOI: 10.1073/pnas.1621240114] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Clinical translation of therapies based on small interfering RNA (siRNA) is hampered by siRNA's comprehensively poor pharmacokinetic properties, which necessitate molecule modifications and complex delivery strategies. We sought an alternative approach to commonly used nanoparticle carriers by leveraging the long-lived endogenous serum protein albumin as an siRNA carrier. We synthesized siRNA conjugated to a diacyl lipid moiety (siRNA-L2), which rapidly binds albumin in situ. siRNA-L2, in comparison with unmodified siRNA, exhibited a 5.7-fold increase in circulation half-life, an 8.6-fold increase in bioavailability, and reduced renal accumulation. Benchmarked against leading commercial siRNA nanocarrier in vivo jetPEI, siRNA-L2 achieved 19-fold greater tumor accumulation and 46-fold increase in per-tumor-cell uptake in a mouse orthotopic model of human triple-negative breast cancer. siRNA-L2 penetrated tumor tissue rapidly and homogeneously; 30 min after i.v. injection, siRNA-L2 achieved uptake in 99% of tumor cells, compared with 60% for jetPEI. Remarkably, siRNA-L2 achieved a tumor:liver accumulation ratio >40:1 vs. <3:1 for jetPEI. The improved pharmacokinetic properties of siRNA-L2 facilitated significant tumor gene silencing for 7 d after two i.v. doses. Proof-of-concept was extended to a patient-derived xenograft model, in which jetPEI tumor accumulation was reduced fourfold relative to the same formulation in the orthotopic model. The siRNA-L2 tumor accumulation diminished only twofold, suggesting that the superior tumor distribution of the conjugate over nanoparticles will be accentuated in clinical situations. These data reveal the immense promise of in situ albumin targeting for development of translational, carrier-free RNAi-based cancer therapies.
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31
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Jackson MA, Werfel TA, Curvino EJ, Yu F, Kavanaugh TE, Sarett SM, Dockery MD, Kilchrist KV, Jackson AN, Giorgio TD, Duvall CL. Zwitterionic Nanocarrier Surface Chemistry Improves siRNA Tumor Delivery and Silencing Activity Relative to Polyethylene Glycol. ACS NANO 2017; 11:5680-5696. [PMID: 28548843 PMCID: PMC5919184 DOI: 10.1021/acsnano.7b01110] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Although siRNA-based nanomedicines hold promise for cancer treatment, conventional siRNA-polymer complex (polyplex) nanocarrier systems have poor pharmacokinetics following intravenous delivery, hindering tumor accumulation. Here, we determined the impact of surface chemistry on the in vivo pharmacokinetics and tumor delivery of siRNA polyplexes. A library of diblock polymers was synthesized, all containing the same pH-responsive, endosomolytic polyplex core-forming block but different corona blocks: 5 kDa (benchmark) and 20 kDa linear polyethylene glycol (PEG), 10 kDa and 20 kDa brush-like poly(oligo ethylene glycol), and 10 kDa and 20 kDa zwitterionic phosphorylcholine-based polymers (PMPC). In vitro, it was found that 20 kDa PEG and 20 kDa PMPC had the highest stability in the presence of salt or heparin and were the most effective at blocking protein adsorption. Following intravenous delivery, 20 kDa PEG and PMPC coronas both extended circulation half-lives 5-fold compared to 5 kDa PEG. However, in mouse orthotopic xenograft tumors, zwitterionic PMPC-based polyplexes showed highest in vivo luciferase silencing (>75% knockdown for 10 days with single IV 1 mg/kg dose) and 3-fold higher average tumor cell uptake than 5 kDa PEG polyplexes (20 kDa PEG polyplexes were only 2-fold higher than 5 kDa PEG). These results show that high molecular weight zwitterionic polyplex coronas significantly enhance siRNA polyplex pharmacokinetics without sacrificing polyplex uptake and bioactivity within tumors when compared to traditional PEG architectures.
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Affiliation(s)
- Meredith A Jackson
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Thomas A Werfel
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Elizabeth J Curvino
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Fang Yu
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Taylor E Kavanaugh
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Samantha M Sarett
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Mary D Dockery
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Kameron V Kilchrist
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Ayisha N Jackson
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Todd D Giorgio
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Craig L Duvall
- Department of Biomedical Engineering, Vanderbilt University , Nashville, Tennessee 37240, United States
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32
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Greco CT, Andrechak JC, Epps TH, Sullivan MO. Anionic Polymer and Quantum Dot Excipients to Facilitate siRNA Release and Self-Reporting of Disassembly in Stimuli-Responsive Nanocarrier Formulations. Biomacromolecules 2017; 18:1814-1824. [PMID: 28441861 PMCID: PMC5672795 DOI: 10.1021/acs.biomac.7b00265] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The incorporation of anionic excipients into polyplexes is a promising strategy for modulating siRNA binding versus release and integrating diagnostic capabilities; however, specific design criteria and structure-function relationships are needed to facilitate the development of nanocarrier-based theranostics. Herein, we incorporated poly(acrylic acid) (PAA) and quantum dot (QD) excipients into photolabile siRNA polyplexes to increase gene silencing efficiencies by up to 100% and enable self-reporting of nanocarrier disassembly. Our systematic approach identified the functional relationships between gene silencing and key parameters such as excipient loading fractions and molecular weights that facilitated the establishment of design rules for optimization of nanocarrier efficacy. For example, we found that PAA molecular weights ∼10-20× greater than that of the coencapsulated siRNA exhibited the most efficient release and silencing. Furthermore, siRNA release assays and RNAi modeling allowed us to generate a PAA "heat map" that predicted gene silencing a priori as a function of PAA molecular weight and loading fraction. QDs further promoted selective siRNA release and provided visual as well as Förster resonance energy transfer (FRET)-based monitoring of the dynamic changes in nanostructure in situ. Moreover, even with the addition of anionic components, our formulations exhibited substantially improved stability and shelf life relative to typical formulations, with complete stability after a week of storage and full activity in the presence of serum. Taken together, this study enabled synergistic improvements in siRNA release and diagnostic capabilities, along with the development of mechanistic insights that are critical for advancing the translation of nucleic acid theranostics into the clinic.
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Affiliation(s)
- Chad T Greco
- Department of Chemical and Biomolecular Engineering and §Department of Materials Science and Engineering, University of Delaware , Newark, Delaware 19716, United States
| | - Jason C Andrechak
- Department of Chemical and Biomolecular Engineering and §Department of Materials Science and Engineering, University of Delaware , Newark, Delaware 19716, United States
| | - Thomas H Epps
- Department of Chemical and Biomolecular Engineering and §Department of Materials Science and Engineering, University of Delaware , Newark, Delaware 19716, United States
| | - Millicent O Sullivan
- Department of Chemical and Biomolecular Engineering and §Department of Materials Science and Engineering, University of Delaware , Newark, Delaware 19716, United States
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Werfel TA, Jackson MA, Kavanaugh TE, Kirkbride KC, Miteva M, Giorgio TD, Duvall C. Combinatorial optimization of PEG architecture and hydrophobic content improves ternary siRNA polyplex stability, pharmacokinetics, and potency in vivo. J Control Release 2017; 255:12-26. [PMID: 28366646 DOI: 10.1016/j.jconrel.2017.03.389] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 03/06/2017] [Accepted: 03/23/2017] [Indexed: 12/21/2022]
Abstract
A rationally-designed library of ternary siRNA polyplexes was developed and screened for gene silencing efficacy in vitro and in vivo with the goal of overcoming both cell-level and systemic delivery barriers. [2-(dimethylamino)ethyl methacrylate] (DMAEMA) was homopolymerized or copolymerized (50mol% each) with butyl methacrylate (BMA) from a reversible addition - fragmentation chain transfer (RAFT) chain transfer agent, with and without pre-conjugation to polyethylene glycol (PEG). Both single block polymers were tested as core-forming units, and both PEGylated, diblock polymers were screened as corona-forming units. Ternary siRNA polyplexes were assembled with varied amounts and ratios of core-forming polymers to PEGylated corona-forming polymers. The impact of polymer composition/ratio, hydrophobe (BMA) placement, and surface PEGylation density was correlated to important outcomes such as polyplex size, stability, pH-dependent membrane disruptive activity, biocompatibility, and gene silencing efficiency. The lead formulation, DB4-PDB12, was optimally PEGylated not only to ensure colloidal stability (no change in size by DLS between 0 and 24h) and neutral surface charge (0.139mV) but also to maintain higher cell uptake (>90% positive cells) than the most densely PEGylated particles. The DB4-PDB12 polyplexes also incorporated BMA in both the polyplex core- and corona-forming polymers, resulting in robust endosomolysis and in vitro siRNA silencing (~85% protein level knockdown) of the model gene luciferase across multiple cell types. Further, the DB4-PDB12 polyplexes exhibited greater stability, increased blood circulation time, reduced renal clearance, increased tumor biodistribution, and greater silencing of luciferase compared to our previously-optimized, binary parent formulation following intravenous (i.v.) delivery. This polyplex library approach enabled concomitant optimization of the composition and ratio of core- and corona-forming polymers (indirectly tuning PEGylation density) and identification of a ternary nanomedicine optimized to overcome important siRNA delivery barriers in vitro and in vivo.
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Affiliation(s)
- Thomas A Werfel
- Department of Biomedical Engineering, Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Meredith A Jackson
- Department of Biomedical Engineering, Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Taylor E Kavanaugh
- Department of Biomedical Engineering, Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Kellye C Kirkbride
- Department of Biomedical Engineering, Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Martina Miteva
- Department of Biomedical Engineering, Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Todd D Giorgio
- Department of Biomedical Engineering, Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Craig Duvall
- Department of Biomedical Engineering, Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA.
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Real-time near-infrared bioimaging of a receptor-targeted cytotoxic dendritic theranostic agent. Biomaterials 2017; 120:1-10. [DOI: 10.1016/j.biomaterials.2016.11.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 11/08/2016] [Accepted: 11/08/2016] [Indexed: 11/19/2022]
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Wang LL, Burdick JA. Engineered Hydrogels for Local and Sustained Delivery of RNA-Interference Therapies. Adv Healthc Mater 2017; 6:10.1002/adhm.201601041. [PMID: 27976524 PMCID: PMC5226889 DOI: 10.1002/adhm.201601041] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 10/21/2016] [Indexed: 12/20/2022]
Abstract
It has been nearly two decades since RNA-interference (RNAi) was first reported. While there are no approved clinical uses, several phase II and III clinical trials suggest the great promise of RNAi therapeutics. One challenge for RNAi therapies is the controlled localization and sustained presentation to target tissues, to both overcome systemic toxicity concerns and to enhance in vivo efficacy. One approach that is emerging to address these limitations is the entrapment of RNAi molecules within hydrogels for local and sustained release. In these systems, nucleic acids are either delivered as siRNA conjugates or within nanoparticles. A plethora of hydrogels has been implemented using these approaches, including both traditional hydrogels that have already been developed for other applications and new hydrogels developed specifically for RNAi delivery. These hydrogels have been applied to various applications in vivo, including cancer, bone regeneration, inflammation and cardiac repair. This review will examine the design and implementation of such hydrogel RNAi systems and will cover the most recent applications of these systems.
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Affiliation(s)
- Leo L. Wang
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104
| | - Jason A. Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104
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