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Shi J, Zhang Y, Ma B, Yong H, Che D, Pan C, He W, Zhou D, Li M. Enhancing the Gene Transfection of Poly(β-amino ester)/DNA Polyplexes by Modular Manipulation of Amphiphilicity. ACS Appl Mater Interfaces 2023; 15:42130-42138. [PMID: 37642943 DOI: 10.1021/acsami.3c03802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Poly(β-amino ester)s (PAEs) have been widely developed for gene delivery, and hydrophobic modification can further enhance their gene transfection efficiency. However, systematic manipulation of amphiphilicity of PAEs through copolymerization with hydrophobic monomers is time-consuming and, to some extent, uncontrollable. Here, a modular strategy is developed to manipulate the amphiphilicity of the PAE/DNA polyplexes. A hydrophobic polymer (DD-C12-122) and a hydrophilic polymer (DD-90-122) are synthesized separately and used as a hydrophobic module and a hydrophilic module, respectively. The amphiphilicity of polyplexes could be manipulated by changing the ratio of the hydrophobic module and hydrophilic module. Using the modular strategy, the PAE/DNA polyplexes with the highest gene transfection efficiency and safety profile as well as possible mechanisms are identified. The modular strategy provides a novel way to engineer the hydrophobicity of PAEs to improve their gene transfection and can be easily generalized and potentially extended to other polymeric gene delivery systems.
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Affiliation(s)
- Jiahao Shi
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yuhe Zhang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Bin Ma
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Haiyang Yong
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Delu Che
- Department of Dermatology, The Second Hospital Affiliated to Xi'an Jiaotong University, Xi'an 710061, China
| | - Chaolan Pan
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Wei He
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Dezhong Zhou
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Ming Li
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Abstract
Polyethylenimine (PEI) is a highly efficient cationic polymer for nucleic acid delivery, and although it is commonly used in preclinical studies, its clinical application is limited because of concerns regarding its cytotoxicity. Poly(β-amino ester)s are a new group of biodegradable and biocompatible cationic polymers that can be used for siRNA delivery. In this study, we synthesized Boc-protected and deprotected poly(β-amino ester)s, P(BSpBAE) and P(SpBAE), respectively, based on spermine and 1,4-butanediol diacrylate to deliver siRNA. The polymers were synthesized by Michael addition in a step-growth polymerization and characterized via 1H NMR spectroscopy and size-exclusion chromatography (SEC). The polymers can encapsulate siRNA as determined by SYBR gold assays. Both polymers and polyplexes were biocompatible in vitro. Furthermore, the cellular uptake of P(BSpBAE) and P(SpBAE) polyplexes was more efficient than for branched PEI (25 kDa) polyplexes at the same N/P ratios. P(BSpBAE) polyplexes achieved 60% eGFP knockdown in vitro, which indicates that the Boc-protection can improve the siRNA delivery and gene silencing efficiency of PBAEs. P(BSpBAE) polyplexes and P(SpBAE) polyplexes showed different cellular uptake mechanisms, and P(BSpBAE) polyplexes demonstrated decreased endosomal entrapment, which could explain why P(BSpBAE) polyplexes more efficiently mediated gene silencing than P(SpBAE) polyplexes. Furthermore, transfection of an siRNA against mutated KRAS in KRAS-mutated lung cancer cells led to around 35% (P(BspBAE)) to 45% (P(SpBAE)) inhibition of KRAS expression and around 33% (P(SpBAE)) to 55% (P(BspBAE)) decreased motility in a migration assay. These results suggest that the newly developed spermine-based poly(β-amino ester)s are promising materials for therapeutic siRNA delivery.
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Affiliation(s)
- Yao Jin
- Ludwig-Maximilians-University Munich, Department of Pharmacy, Pharmaceutical technology and Biopharmaceutics, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Friederike Adams
- Ludwig-Maximilians-University Munich, Department of Pharmacy, Pharmaceutical technology and Biopharmaceutics, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Lorenz Isert
- Ludwig-Maximilians-University Munich, Department of Pharmacy, Pharmaceutical technology and Biopharmaceutics, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Domizia Baldassi
- Ludwig-Maximilians-University Munich, Department of Pharmacy, Pharmaceutical technology and Biopharmaceutics, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Olivia M. Merkel
- Ludwig-Maximilians-University Munich, Department of Pharmacy, Pharmaceutical technology and Biopharmaceutics, Butenandtstr. 5-13, 81377 Munich, Germany
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Puigmal N, Ramos V, Artzi N, Borrós S. Poly(β-amino ester)s-Based Delivery Systems for Targeted Transdermal Vaccination. Pharmaceutics 2023; 15:pharmaceutics15041262. [PMID: 37111746 PMCID: PMC10143071 DOI: 10.3390/pharmaceutics15041262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Nucleic acid vaccines have become a transformative technology to fight emerging infectious diseases and cancer. Delivery of such via the transdermal route could boost their efficacy given the complex immune cell reservoir present in the skin that is capable of engendering robust immune responses. We have generated a novel library of vectors derived from poly(β-amino ester)s (PBAEs) including oligopeptide-termini and a natural ligand, mannose, for targeted transfection of antigen presenting cells (APCs) such as Langerhans cells and macrophages in the dermal milieu. Our results reaffirmed terminal decoration of PBAEs with oligopeptide chains as a powerful tool to induce cell-specific transfection, identifying an outstanding candidate with a ten-fold increased transfection efficiency over commercial controls in vitro. The inclusion of mannose in the PBAE backbone rendered an additive effect and increased transfection levels, achieving superior gene expression in human monocyte-derived dendritic cells and other accessory antigen presenting cells. Moreover, top performing candidates were capable of mediating surface gene transfer when deposited as polyelectrolyte films onto transdermal devices such as microneedles, offering alternatives to conventional hypodermic administration. We predict that the use of highly efficient delivery vectors derived from PBAEs could advance clinical translation of nucleic acid vaccination over protein- and peptide-based strategies.
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Affiliation(s)
- Núria Puigmal
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, 08017 Barcelona, Spain
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Institute for Medical Engineering and Science (IMES), Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Víctor Ramos
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, 08017 Barcelona, Spain
| | - Natalie Artzi
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Institute for Medical Engineering and Science (IMES), Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Salvador Borrós
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, 08017 Barcelona, Spain
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Li Y, He Z, Lyu J, Wang X, Qiu B, Lara-Sáez I, Zhang J, Zeng M, Xu Q, A S, Curtin JF, Wang W. Hyperbranched Poly(β-amino ester)s (HPAEs) Structure Optimisation for Enhanced Gene Delivery: Non-Ideal Termination Elimination. Nanomaterials (Basel) 2022; 12:nano12213892. [PMID: 36364669 PMCID: PMC9656648 DOI: 10.3390/nano12213892] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/29/2022] [Accepted: 11/02/2022] [Indexed: 05/31/2023]
Abstract
Many polymeric gene delivery nano-vectors with hyperbranched structures have been demonstrated to be superior to their linear counterparts. The higher delivery efficacy is commonly attributed to the abundant terminal groups of branched polymers, which play critical roles in cargo entrapment, material-cell interaction, and endosome escape. Hyperbranched poly(β-amino ester)s (HPAEs) have developed as a class of safe and efficient gene delivery vectors. Although numerous research has been conducted to optimise the HPAE structure for gene delivery, the effect of the secondary amine residue on its backbone monomer, which is considered the non-ideal termination, has never been optimised. In this work, the effect of the non-ideal termination was carefully evaluated. Moreover, a series of HPAEs with only ideal terminations were synthesised by adjusting the backbone synthesis strategy to further explore the merits of hyperbranched structures. The HPAE obtained from modified synthesis methods exhibited more than twice the amounts of the ideal terminal groups compared to the conventional ones, determined by NMR. Their transfection performance enhanced significantly, where the optimal HPAE candidates developed in this study outperformed leading commercial benchmarks for DNA delivery, including Lipofectamine 3000, jetPEI, and jetOPTIMUS.
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Affiliation(s)
- Yinghao Li
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Zhonglei He
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
- BioPlasma Research Group, School of Food Science and Environmental Health, Technological University Dublin, D07 H6K8 Dublin, Ireland
| | - Jing Lyu
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Xianqing Wang
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Bei Qiu
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Irene Lara-Sáez
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Jing Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu South Road, Nanjing 211816, China
| | - Ming Zeng
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou Overseas Chinese Hospital, Guangzhou 510630, China
| | - Qian Xu
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Sigen A
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - James F. Curtin
- BioPlasma Research Group, School of Food Science and Environmental Health, Technological University Dublin, D07 H6K8 Dublin, Ireland
- Faculty of Engineering and Built Environment, Technological University Dublin, D07 H6K8 Dublin, Ireland
| | - Wenxin Wang
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
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Abstract
Impaired cutaneous healing leading to chronic wounds affects between 2 and 6% of the total population in most developed countries and it places a substantial burden on healthcare budgets. Current treatments involving antibiotic dressings and mechanical debridement are often not effective, causing severe pain, emotional distress, and social isolation in patients for years or even decades, ultimately resulting in limb amputation. Alternatively, gene therapy (such as mRNA therapies) has emerged as a viable option to promote wound healing through modulation of gene expression. However, protecting the genetic cargo from degradation and efficient transfection into primary cells remain significant challenges in the push to clinical translation. Another limiting aspect of current therapies is the lack of sustained release of drugs to match the therapeutic window. Herein, we have developed an injectable, biodegradable and cytocompatible hydrogel-based wound dressing that delivers poly(β-amino ester)s (pBAEs) nanoparticles in a sustained manner over a range of therapeutic windows. We also demonstrate that pBAE nanoparticles, successfully used in previous in vivo studies, protect the mRNA load and efficiently transfect human dermal fibroblasts upon sustained release from the hydrogel wound dressing. This prototype wound dressing technology can enable the development of novel gene therapies for the treatment of chronic wounds.
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Affiliation(s)
- Jose Antonio Duran-Mota
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, Barcelona 08017, Spain.,Department of Bioengineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Júlia Quintanas Yani
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, Barcelona 08017, Spain.,Department of Bioengineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Benjamin D Almquist
- Department of Bioengineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Salvador Borrós
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, Barcelona 08017, Spain
| | - Nuria Oliva
- Department of Bioengineering, Imperial College London, London SW7 2AZ, United Kingdom
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Brugada-Vilà P, Cascante A, Lázaro MÁ, Castells-Sala C, Fornaguera C, Rovira-Rigau M, Albertazzi L, Borros S, Fillat C. Oligopeptide-modified poly(beta-amino ester)s-coated AdNuPARmE1A: Boosting the efficacy of intravenously administered therapeutic adenoviruses. Theranostics 2020; 10:2744-2758. [PMID: 32194832 PMCID: PMC7052890 DOI: 10.7150/thno.40902] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/23/2019] [Indexed: 01/09/2023] Open
Abstract
Oncolytic adenoviruses are used as agents for the treatment of cancer. However, their potential is limited due to the high seroprevalence of anti-adenovirus neutralizing antibodies (nAbs) within the population and the rapid liver sequestration when systemically administered. To overcome these challenges, we explored using nanoparticle formulation to boost the efficacy of systemic oncolytic adenovirus administration. Methods: Adenovirus were conjugated with PEGylated oligopeptide-modified poly(β-amino ester)s (OM-pBAEs). The resulting coated viral formulation was characterized in terms of surface charge, size, aggregation state and morphology and tested for anti-adenovirus nAbs evasion and activity in cancer cells. In vivo pharmacokinetics, biodistribution, tumor targeting, and immunogenicity studies were performed. The antitumor efficacy of the oncolytic adenovirus AdNuPARmE1A coated with OM-pBAEs (SAG101) in the presence of nAbs was evaluated in pancreatic ductal adenocarcinoma (PDAC) mouse models. Toxicity of the coated formulation was analyzed in vivo in immunocompetent mice. Results: OM-pBAEs conjugated to adenovirus and generated discrete nanoparticles with a neutral charge and an optimal size. The polymeric coating with the reporter AdGFPLuc (CPEG) showed enhanced transduction and evasion of antibody neutralization in vitro. Moreover, systemic intravenous administration of the formulation showed improved blood circulation and reduced liver sequestration, substantially avoiding activation of nAb production. OM-pBAEs coating of the oncolytic adenovirus AdNuPARmE1A (SAG101) improved its oncolytic activity in vitro and enhanced antitumor efficacy in PDAC mouse models. The coated formulation protected virions from neutralization by nAbs, as antitumor efficacy was preserved in their presence but was completely lost in mice that received the non-formulated AdNuPARmE1A. Finally, coated-AdNuPARmE1A showed reduced toxicity when high doses of the formulation were administered. Conclusions: The developed technology represents a promising improvement for future clinical cancer therapy using oncolytic adenoviruses.
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Zhou M, Zhang X, Xie J, Qi R, Lu H, Leporatti S, Chen J, Hu Y. pH-Sensitive Poly(β-amino ester)s Nanocarriers Facilitate the Inhibition of Drug Resistance in Breast Cancer Cells. Nanomaterials (Basel) 2018; 8:E952. [PMID: 30463238 PMCID: PMC6267427 DOI: 10.3390/nano8110952] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/13/2018] [Accepted: 11/14/2018] [Indexed: 12/14/2022]
Abstract
Multidrug resistance (MDR) remains an unmet challenge in chemotherapy. Stimuli-responsive nanocarriers emerge as a promising tool to overcome MDR. Herein, pH-sensitive poly(β-amino ester)s polymers (PHP)-based micellar nanoparticles were synthesized for enhanced doxorubicin (DOX) delivery in drug resistant breast cancer MCF-7/ADR cells. DOX-loaded PHP micelles showed rapid cell-internalization and lysosomal escape in MCF-7/ADR cells. The cytotoxicity assays showed relatively higher cell inhibition of DOX-loaded PHP micelles than that of free DOX against MCF-7/ADR cells. Further mechanistic studies showed that PHP micelles were able to inhibit P-glycoprotein (P-gp) activity by lowering mitochondrial membrane potentials and ATP levels. These results suggested that the enhanced antitumor effect might be attributed to PHP-mediated lysosomal escape and drug efflux inhibition. Therefore, PHP would be a promising pH-responsive nanocarrier for enhanced intracellular drug delivery and overcoming MDR in cancer cells.
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Affiliation(s)
- Mengxue Zhou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xingcai Zhang
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
| | - Jin Xie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Rongxiang Qi
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Huiru Lu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Stefano Leporatti
- CNR Nanotec-Istituto di Nanotecnologia, Polo di Nanotecnologia, 73100 Lecce, Italy.
| | - Jun Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yi Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
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Zeng M, Zhou D, Ng S, Ahern JOK, Alshehri F, Gao Y, Pierucci L, Greiser U, Wang W. Highly Branched poly(5-amino-1-pentanol-co-1,4-butanediol diacrylate) for High Performance Gene Transfection. Polymers (Basel) 2017; 9:E161. [PMID: 30970840 DOI: 10.3390/polym9050161] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/26/2017] [Accepted: 04/27/2017] [Indexed: 11/18/2022] Open
Abstract
The top-performing linear poly(β-amino ester) (LPAE), poly(5-amino-1-pentanol-co-1,4-butanediol diacrylate) (C32), has demonstrated gene transfection efficiency comparable to viral-mediated gene delivery. Herein, we report the synthesis of a series of highly branched poly(5-amino-1-pentanol-co-1,4-butanediol diacrylate) (HC32) and explore how the branching structure influences the performance of C32 in gene transfection. HC32 were synthesized by an “A2 + B3 + C2” Michal addition strategy. Gaussia luciferase (Gluciferase) and green fluorescent protein (GFP) coding plasmid DNA were used as reporter genes and the gene transfection efficiency was evaluated in human cervical cancer cell line (HeLa) and human recessive dystrophic epidermolysis bullosa keratinocyte (RDEBK) cells. We found that the optimal branching structure led to a much higher gene transfection efficiency in comparison to its linear counterpart and commercial reagents, while preserving high cell viability in both cell types. The branching strategy affected DNA binding, proton buffering capacity and degradation of polymers as well as size, zeta potential, stability, and DNA release rate of polyplexes significantly. Polymer degradation and DNA release rate played pivotal parts in achieving the high gene transfection efficiency of HC32-103 polymers, providing new insights for the development of poly(β-amino ester)s-based gene delivery vectors.
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Huang YH, Zugates GT, Peng W, Holtz D, Dunton C, Green JJ, Hossain N, Chernick MR, Padera RF, Langer R, Anderson DG, Sawicki JA. Nanoparticle-delivered suicide gene therapy effectively reduces ovarian tumor burden in mice. Cancer Res 2009; 69:6184-91. [PMID: 19643734 PMCID: PMC2735403 DOI: 10.1158/0008-5472.can-09-0061] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
There is currently no effective therapy for patients with advanced ovarian cancer. To address the need for a more effective treatment for this deadly disease, we conducted preclinical tests in ovarian tumor-bearing mice to evaluate the therapeutic efficacy of using a cationic biodegradable poly(beta-amino ester) polymer as a vector for nanoparticulate delivery of DNA encoding a diphtheria toxin suicide protein (DT-A). The promoter sequences of two genes that are highly active in ovarian tumor cells, MSLN and HE4, were used to target DT-A expression to tumor cells. Administration of DT-A nanoparticles directly to s.c. xenograft tumors and to the peritoneal cavity of mice bearing primary and metastatic ovarian tumors resulted in a significant reduction in tumor mass and a prolonged life span compared to control mice. Minimal nonspecific tissue and blood chemistry toxicity was observed following extended treatment with nanoparticles. DT-A nanoparticle therapy suppressed tumor growth more effectively than treatment with clinically relevant doses of cisplatin and paclitaxel. Our findings suggest that i.p. administration of polymeric nanoparticles to deliver DT-A encoding DNA, combined with transcriptional regulation to target gene expression to ovarian tumor cells, holds promise as an effective therapy for advanced-stage ovarian cancer.
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Affiliation(s)
- Yu-Hung Huang
- Lankenau Institute for Medical Research, 100 Lancaster Avenue, Wynnewood, PA 19096
| | - Gregory T. Zugates
- David H. Koch Institute for Integrative Cancer Research, 77 Massachusetts Ave., Rm. E25-342, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Weidan Peng
- Lankenau Institute for Medical Research, 100 Lancaster Avenue, Wynnewood, PA 19096
| | - David Holtz
- Lankenau Institute for Medical Research, 100 Lancaster Avenue, Wynnewood, PA 19096
| | - Charles Dunton
- Lankenau Institute for Medical Research, 100 Lancaster Avenue, Wynnewood, PA 19096
| | - Jordan J. Green
- David H. Koch Institute for Integrative Cancer Research, 77 Massachusetts Ave., Rm. E25-342, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Naushad Hossain
- David H. Koch Institute for Integrative Cancer Research, 77 Massachusetts Ave., Rm. E25-342, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Michael R. Chernick
- Lankenau Institute for Medical Research, 100 Lancaster Avenue, Wynnewood, PA 19096
| | - Robert F. Padera
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA 02115
| | - Robert Langer
- David H. Koch Institute for Integrative Cancer Research, 77 Massachusetts Ave., Rm. E25-342, Massachusetts Institute of Technology, Cambridge, MA 02139
- Chemical Engineering Department, 77 Massachusetts Ave., Rm. E25-342, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Daniel G. Anderson
- David H. Koch Institute for Integrative Cancer Research, 77 Massachusetts Ave., Rm. E25-342, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Janet A. Sawicki
- Lankenau Institute for Medical Research, 100 Lancaster Avenue, Wynnewood, PA 19096
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, PA 19107
- Kimmel Cancer Center, Jefferson Medical School, Thomas Jefferson University, Philadelphia, PA 19107
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