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Nakagawa R, Akagi R, Yamaguchi S, Enomoto T, Sato Y, Kimura S, Ogawa Y, Sadamasu A, Ohtori S, Sasho T. Single vs. repeated matrix metalloproteinase-13 knockdown with intra-articular short interfering RNA administration in a murine osteoarthritis model. Connect Tissue Res 2019; 60:335-343. [PMID: 30345823 DOI: 10.1080/03008207.2018.1539082] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Purpose: Our aims were 1) to estimate the duration of short interfering RNA (siRNA) effect on matrix metalloproteinase-13 (Mmp-13) levels by a single intra-articular injection using a mouse knee osteoarthritis (OA) model and 2) to test whether repeated injections results in any additional suppressive effect on cartilage degradation compared to a single injection. Materials and Methods: OA was induced in 9 weeks old male C57BL/6 mice by destabilization of medial meniscus (DMM). Chemically modified siRNA targeted for Mmp-13 was injected into the knee joint at 1 week post-DMM surgery. Control group of knees received that for non-targeted genes. Synovial tissue was collected to measure Mmp-13 expression levels by quantitative polymerase chain reaction (qPCR) at 2, 3, and 6 weeks after surgery in each group. To test the effect of multiple injections, we created four experiment groups according to the number of injections. Histological assessment of articular cartilage was performed at 8 weeks post-DMM surgery. Results: In the Mmp-13 siRNA-treated group, expression levels of Mmp-13 mRNA were decreased by 40% compared to the control group at 2 weeks after surgery (p = 0.04), before returning to baseline at 3 weeks after surgery. A significant improvement in the histological score was observed in all Mmp-13 siRNA-treated groups compared to the control group (p < 0.05). However, no significant differences were seen between the single and multiple injection group. Conclusions: Our results suggested that the duration of siRNA effect in the knee joint lasts for at least 1 week, and that no further benefit is achieved by multiple injections.
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Affiliation(s)
- Ryosuke Nakagawa
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan
| | - Ryuichiro Akagi
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan
| | - Satoshi Yamaguchi
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan
| | - Takahiro Enomoto
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan
| | - Yusuke Sato
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan
| | - Seiji Kimura
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan
| | - Yuya Ogawa
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan
| | - Aya Sadamasu
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan
| | - Seiji Ohtori
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan
| | - Takahisa Sasho
- a Department of Orthopaedic Surgery , Graduate School of Medical and Sciences, Chiba University , Chiba , Japan.,b Musculoskeletal Disease and Pain , Center for Preventive Medical Sciences, Chiba University , Chiba , Japan
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Abstract
The ex vivo organ culture of bone provides many of the advantages of both the whole organism and isolated cell strategies and can deliver valuable insight into the network of processes and activities that are fundamental to bone and cartilage biology. Through maintaining the bone and/or cartilage cells in their native environment, this model system provides the investigator with a powerful experimental protocol to address specific facets of skeletal growth and development. In this chapter, we outline the basic protocols and possible readouts of organ culture models to replicate; (a) linear bone growth (murine metatarsal culture model), (b) bone and cartilage metabolism (murine femoral head culture model), (c) bone response to mechanical stimulation (bovine trabecular core culture model), and (d) bone resorption and formation (murine calvaria culture model).
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Hoshi H, Akagi R, Yamaguchi S, Muramatsu Y, Akatsu Y, Yamamoto Y, Sasaki T, Takahashi K, Sasho T. Effect of inhibiting MMP13 and ADAMTS5 by intra-articular injection of small interfering RNA in a surgically induced osteoarthritis model of mice. Cell Tissue Res 2017; 368:379-387. [PMID: 28120109 DOI: 10.1007/s00441-016-2563-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 12/14/2016] [Accepted: 12/19/2016] [Indexed: 01/07/2023]
Abstract
Matrix metalloproteinase 13 (MMP13) and a disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS5) are thought to play critical roles in cartilage degradation at the early phase of osteoarthritis (OA). The aim of this study is to examine the effect of chemically modified Mmp13 or Adamts5 small interfering RNA (siRNA), alone or in combination, in a mouse OA model. OA pathology was surgically induced in 9-week-old male C57/BL6 mice (n = 64) via destabilization of the medial meniscus (DMM). We used chemically modified siRNA (Accell siRNAs®) for Mmp13 and Adamts5, as well as a non-targeting control and evaluated their combined and individual effects after injection in the DMM model. The control group (n = 16) was injected with non-targeting siRNA and the normal group (n = 16) did not undergo any surgical induction or intra-articular injection. Histological assessment of the articular cartilage was conducted at 4 and 8 weeks post-DMM surgery to evaluate OA progression. Significant improvement in the histological score was observed at 8 weeks after DMM in all three siRNA-treated groups compared to the control siRNA-injected group. The score of the combined group was significantly lower than that of the Adamts5 siRNA-only group. No significant differences were noted between the Mmp13 siRNA-only group and the combined group. Combined intra-articular injection of Mmp13 and Adamts5 siRNA resulted in almost the same inhibitory effects as Mmp13 siRNA alone on cartilage degradation at the early phase of OA.
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Affiliation(s)
- Hiroko Hoshi
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Ryuichiro Akagi
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Satoshi Yamaguchi
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Yuta Muramatsu
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Yorikazu Akatsu
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Yohei Yamamoto
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Toshihide Sasaki
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Kazuhisa Takahashi
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Takahisa Sasho
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan. .,Center for Preventive Medicine, Chiba University, Chiba, Japan.
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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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Marino S, Staines KA, Brown G, Howard-Jones RA, Adamczyk M. Models of ex vivo explant cultures: applications in bone research. BONEKEY REPORTS 2016; 5:818. [PMID: 27408711 PMCID: PMC4926536 DOI: 10.1038/bonekey.2016.49] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 05/04/2016] [Indexed: 01/09/2023]
Abstract
Ex vivo explant culture models are powerful tools in bone research. They allow investigation of bone and cartilage responses to specific stimuli in a controlled manner that closely mimics the in vivo processes. Because of limitations in obtaining healthy human bone samples the explant growth of animal tissue serves as a platform to study the complex physico-chemical properties of the bone. Moreover, these models enable preserving important cell-cell and cell-matrix interactions in order to better understand the behaviour of cells in their natural three-dimensional environment. Thus, the use of bone ex vivo explant cultures can frequently be of more physiological relevance than the use of two-dimensional primary cells grown in vitro. Here, we describe isolation and ex vivo growth of different animal bone explant models including metatarsals, femoral heads, calvaria, mandibular slices and trabecular cores. We also describe how these explants are utilised to study bone development, cartilage and bone metabolism, cancer-induced bone diseases, stem cell-driven bone repair and mechanoadaptation. These techniques can be directly used to understand mechanisms linked with bone physiology or bone-associated diseases.
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Affiliation(s)
- Silvia Marino
- Academic Unit of Bone Biology, Department of Oncology and Metabolism, Mellanby Centre for Bone Research, Medical School, The University of Sheffield, Sheffield, UK
| | | | - Genevieve Brown
- Department of Biomedical Engineering, Columbia University, New York, USA
| | - Rachel Anne Howard-Jones
- Oral and Biomedical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK
| | - Magdalena Adamczyk
- Academic Unit of Bone Biology, Department of Oncology and Metabolism, Mellanby Centre for Bone Research, Medical School, The University of Sheffield, Sheffield, UK
- Oral and Biomedical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK
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Akagi R, Sasho T, Saito M, Endo J, Yamaguchi S, Muramatsu Y, Mukoyama S, Akatsu Y, Katsuragi J, Fukawa T, Takahashi K. Effective knock down of matrix metalloproteinase-13 by an intra-articular injection of small interfering RNA (siRNA) in a murine surgically-induced osteoarthritis model. J Orthop Res 2014; 32:1175-80. [PMID: 24848439 DOI: 10.1002/jor.22654] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Accepted: 05/02/2014] [Indexed: 02/04/2023]
Abstract
This study investigated the effect of MMP-13 gene knock down on cartilage degradation by injecting small interfering RNA (siRNA) into knee joints in a mouse model of osteoarthritis (OA). OA was induced in male C57BL/6 mice by destabilization of medial meniscus (DMM) surgery. Change of Mmp13 expression over time was determined by qPCR analysis from 3 days to 6 weeks after surgery. Mmp13 and control chemically modified siRNA were injected into the knee joint 1 week after surgery and expression levels were assessed in synovium by qPCR 48 h later. Cartilage degradation was histologically assessed 8 weeks after DMM surgery according to OARSI recommendations. Mmp13 expression levels were elevated 1 week after surgery and peaked at 77 fold at 2 weeks compared to expression at 3 days. A 55% decrease of Mmp13 levels in cartilage was observed 48 h after injection of Mmp13 siRNA (p = 0.05). Significant reduction in the histological score at 8 weeks after surgery was observed in the Mmp13 siRNA-treated group compared to the control siRNA group (p < 0.001). Intra-articular injection of Mmp13 siRNA at the early phase of OA development resulted in effective knock down of Mmp13 expression and delay in cartilage degradation in vivo.
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Affiliation(s)
- Ryuichiro Akagi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana Chuo-ku, Chiba, Chiba, 260-8670, Japan
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Gherardini L, Bardi G, Gennaro M, Pizzorusso T. Novel siRNA delivery strategy: a new "strand" in CNS translational medicine? Cell Mol Life Sci 2014; 71:1-20. [PMID: 23508806 PMCID: PMC11113879 DOI: 10.1007/s00018-013-1310-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 02/18/2013] [Accepted: 02/19/2013] [Indexed: 12/12/2022]
Abstract
RNA interference has been envisaged as a powerful tool for molecular and clinical investigation with a great potential for clinical applications. In recent years, increased understanding of cancer biology and stem cell biology has dramatically accelerated the development of technology for cell and gene therapy in these areas. This paper is a review of the most recent report of innovative use of siRNA to benefit several central nervous system diseases. Furthermore, a description is made of innovative strategies of delivery into the brain by means of viral and non-viral vectors with high potential for translation into clinical use. Problems are also highlighted that might hamper the transition from bench to bed, analyzing the lack of reliable preclinical models with predictive validity and the lack of effective delivery systems, which are able to overcome biological barriers and specifically reach the brain site of action.
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Affiliation(s)
| | - Giuseppe Bardi
- Center for MicroBioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | | | - Tommaso Pizzorusso
- Institute of Neuroscience, CNR, Via Moruzzi, 1 56124 Pisa, Italy
- Department of Neuroscience, Psychology, Drug Research and Child Health NEUROFARBA, University of Florence, Florence, Italy
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González-González E, Kim YC, Speaker TJ, Hickerson RP, Spitler R, Birchall JC, Lara MF, Hu RH, Liang Y, Kirkiles-Smith N, Prausnitz MR, Milstone LM, Contag CH, Kaspar RL. Visualization of plasmid delivery to keratinocytes in mouse and human epidermis. Sci Rep 2011; 1:158. [PMID: 22355673 PMCID: PMC3240989 DOI: 10.1038/srep00158] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 10/26/2011] [Indexed: 02/06/2023] Open
Abstract
The accessibility of skin makes it an ideal target organ for nucleic acid-based therapeutics; however, effective patient-friendly delivery remains a major obstacle to clinical utility. A variety of limited and inefficient methods of delivering nucleic acids to keratinocytes have been demonstrated; further advances will require well-characterized reagents, rapid noninvasive assays of delivery, and well-developed skin model systems. Using intravital fluorescence and bioluminescence imaging and a standard set of reporter plasmids we demonstrate transfection of cells in mouse and human xenograft skin using intradermal injection and two microneedle array delivery systems. Reporter gene expression could be detected in individual keratinocytes, in real-time, in both mouse skin as well as human skin xenografts. These studies revealed that non-invasive intravital imaging can be used as a guide for developing gene delivery tools, establishing a benchmark for comparative testing of nucleic acid skin delivery technologies.
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Affiliation(s)
- Emilio González-González
- Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, CA 94305, USA
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Chim H, Manjila S, Cohen AR, Gosain AK. Molecular signaling in pathogenesis of craniosynostosis: the role of fibroblast growth factor and transforming growth factor–β. Neurosurg Focus 2011; 31:E7. [DOI: 10.3171/2011.5.focus1197] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The interplay of signals between dura mater, suture mesenchyme, and brain is essential in determining the fate of cranial sutures and the pathogenesis of premature suture fusion leading to craniosynostosis. At the forefront of research into suture fusion is the role of fibroblast growth factor and transforming growth factor–β, which have been found to be critical in the cell-signaling cascade involved in aberrant suture fusion. In this review, the authors discuss recent and ongoing research into the role of fibroblast growth factor and transforming growth factor–β in the etiopathogenesis of craniosynostosis.
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Affiliation(s)
- Harvey Chim
- 1Department of Plastic Surgery, Case Western Reserve University; and
| | - Sunil Manjila
- 2Division of Pediatric Neurosurgery, Rainbow Babies and Children's Hospitals, Case Western Reserve University, Cleveland, Ohio
| | - Alan R. Cohen
- 2Division of Pediatric Neurosurgery, Rainbow Babies and Children's Hospitals, Case Western Reserve University, Cleveland, Ohio
| | - Arun K. Gosain
- 1Department of Plastic Surgery, Case Western Reserve University; and
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Gurkan UA, Kishore V, Condon KW, Bellido TM, Akkus O. A scaffold-free multicellular three-dimensional in vitro model of osteogenesis. Calcif Tissue Int 2011; 88:388-401. [PMID: 21318400 PMCID: PMC10132772 DOI: 10.1007/s00223-011-9467-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Accepted: 01/21/2011] [Indexed: 01/28/2023]
Abstract
In vitro models of osteogenesis are essential for investigating bone biology and the effects of pharmaceutical, chemical, and physical cues on bone formation. Osteogenesis takes place in a complex three-dimensional (3D) environment with cells from both mesenchymal and hematopoietic origins. Existing in vitro models of osteogenesis include two-dimensional (2D) single type cell monolayers and 3D cultures. However, an in vitro scaffold-free multicellular 3D model of osteogenesis is missing. We hypothesized that the self-inductive ossification capacity of bone marrow tissue can be harnessed in vitro and employed as a scaffold-free multicellular 3D model of osteogenesis. Therefore, rat bone marrow tissue was cultured for 28 days in three settings: 2D monolayer, 3D homogenized pellet, and 3D organotypic explant. The ossification potential of marrow in each condition was quantified by micro-computed tomography. The 3D organotypic marrow explant culture resulted in the greatest level of ossification with plate-like bone formations (up to 5 mm in diameter and 0.24 mm in thickness). To evaluate the mimicry of the organotypic marrow explants to newly forming native bone tissue, detailed compositional and morphological analyses were performed, including characterization of the ossified matrix by histochemistry, immunohistochemistry, Raman microspectroscopy, energy dispersive X-ray spectroscopy, backscattered electron microscopy, and micromechanical tests. The results indicated that the 3D organotypic marrow explant culture model mimics newly forming native bone tissue in terms of the characteristics studied. Therefore, this platform holds significant potential to be used as a model of osteogenesis, offering an alternative to in vitro monolayer cultures and in vivo animal models.
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Affiliation(s)
- Umut A Gurkan
- Center for Biomedical Engineering at Brigham and Women's Hospital, Harvard Medical School, Harvard-MIT Division of Health Sciences and Technology, Boston, MA, USA
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Silencing of reporter gene expression in skin using siRNAs and expression of plasmid DNA delivered by a soluble protrusion array device (PAD). Mol Ther 2010; 18:1667-74. [PMID: 20571543 DOI: 10.1038/mt.2010.126] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Despite rapid progress in the development of potent and selective small interfering RNA (siRNA) agents for skin disorders, translation to the clinic has been hampered by the lack of effective, patient-friendly delivery technologies. The stratum corneum poses a formidable barrier to efficient delivery of large and/or charged macromolecules including siRNAs. Intradermal siRNA injection results in effective knockdown of targeted gene expression but is painful and the effects are localized to the injection site. The use of microneedle arrays represents a less painful delivery method and may have utility for the delivery of nucleic acids, including siRNAs. For this purpose, we developed a loadable, dissolvable protrusion array device (PAD) that allows skin barrier penetration. The PAD tips dissolve upon insertion, forming a gel-like plug that releases functional cargo. PAD-mediated delivery of siRNA (modified for enhanced stability and cellular uptake) resulted in effective silencing of reporter gene expression in a transgenic reporter mouse model. PAD delivery of luciferase reporter plasmids resulted in expression in cells of the ear, back, and footpad skin as assayed by intravital bioluminescence imaging. These results support the use of PADs for delivery of functional nucleic acids to cells in the skin with an efficiency that may support clinical translation.
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