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Yu S, Pan H, Yang H, Zhuang H, Yang H, Yu X, Zhang S, Fang M, Li T, Ge S, Xia N. A non-viral DNA delivery system consisting of multifunctional chimeric peptide fused with zinc-finger protein. iScience 2024; 27:109464. [PMID: 38558940 PMCID: PMC10981093 DOI: 10.1016/j.isci.2024.109464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/06/2024] [Accepted: 03/07/2024] [Indexed: 04/04/2024] Open
Abstract
Non-viral gene delivery systems have received sustained attention as a promising alternative to viral vectors for disease treatment and prevention in recent years. Numerous methods have been developed to enhance gene uptake and delivery in the cytoplasm; however, due to technical difficulties and delivery efficiency, these systems still face challenges in a range of biological applications, especially in vivo. To alleviate this challenge, we devised a novel system for gene delivery based on a recombinant protein eTAT-ZF9-NLS, which consisted of a multifunctional chimeric peptide and a zinc-finger protein with sequence-specific DNA-binding activity. High transfection efficiency was observed in several mammalian cells after intracellular delivery of plasmid containing ZF9-binding sites mediated by eTAT-ZF9-NLS. Our new approach provides a novel transfection strategy and the transfection efficiency was confirmed both in vitro and in vivo, making it a preferential transfection reagent for possible gene therapy.
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Affiliation(s)
- Siyuan Yu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Haifeng Pan
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Han Yang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Haoyun Zhuang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Haihui Yang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Xuan Yu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Shiyin Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Mujin Fang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Tingdong Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Shengxiang Ge
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Ningshao Xia
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, NMPA Key Laboratory for Research and Evaluation of Infectious Disease Diagnostic Technology, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
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Wallen M, Aqil F, Spencer W, Gupta RC. Exosomes as an Emerging Plasmid Delivery Vehicle for Gene Therapy. Pharmaceutics 2023; 15:1832. [PMID: 37514019 PMCID: PMC10384126 DOI: 10.3390/pharmaceutics15071832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/09/2023] [Accepted: 06/15/2023] [Indexed: 07/30/2023] Open
Abstract
Despite its introduction more than three decades ago, gene therapy has fallen short of its expected potential for the treatment of a broad spectrum of diseases and continues to lack widespread clinical use. The fundamental limitation in clinical translatability of this therapeutic modality has always been an effective delivery system that circumvents degradation of the therapeutic nucleic acids, ensuring they reach the intended disease target. Plasmid DNA (pDNA) for the purpose of introducing exogenous genes presents an additional challenge due to its size and potential immunogenicity. Current pDNA methods include naked pDNA accompanied by electroporation or ultrasound, liposomes, other nanoparticles, and cell-penetrating peptides, to name a few. While the topic of numerous reviews, each of these methods has its own unique set of limitations, side effects, and efficacy concerns. In this review, we highlight emerging uses of exosomes for the delivery of pDNA for gene therapy. We specifically focus on bovine milk and colostrum-derived exosomes as a nano-delivery "platform". Milk/colostrum represents an abundant, scalable, and cost-effective natural source of exosomes that can be loaded with nucleic acids for targeted delivery to a variety of tissue types in the body. These nanoparticles can be functionalized and loaded with pDNA for the exogenous expression of genes to target a wide variety of disease phenotypes, overcoming many of the limitations of current gene therapy delivery techniques.
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Affiliation(s)
| | - Farrukh Aqil
- Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
- Department of Medicine, University of Louisville, Louisville, KY 40202, USA
| | | | - Ramesh C Gupta
- 3P Biotechnologies, Inc., Louisville, KY 40202, USA
- Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40202, USA
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3
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Surface morphology live-cell imaging reveals how macropinocytosis inhibitors affect membrane dynamics. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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A nuclease-mimetic platinum nanozyme induces concurrent DNA platination and oxidative cleavage to overcome cancer drug resistance. Nat Commun 2022; 13:7361. [PMID: 36450764 PMCID: PMC9712435 DOI: 10.1038/s41467-022-35022-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 11/15/2022] [Indexed: 12/03/2022] Open
Abstract
Platinum (Pt) resistance in cancer almost inevitably occurs during clinical Pt-based chemotherapy. The spontaneous nucleotide-excision repair of cancer cells is a representative process that leads to Pt resistance, which involves the local DNA bending to facilitate the recruitment of nucleotide-excision repair proteins and subsequent elimination of Pt-DNA adducts. By exploiting the structural vulnerability of this process, we herein report a nuclease-mimetic Pt nanozyme that can target cancer cell nuclei and induce concurrent DNA platination and oxidative cleavage to overcome Pt drug resistance. We show that the Pt nanozyme, unlike cisplatin and conventional Pt nanoparticles, specifically induces the nanozyme-catalyzed cleavage of the formed Pt-DNA adducts by generating in situ reactive oxygen species, which impairs the damage recognition factors-induced DNA bending prerequisite for nucleotide-excision repair. The recruitment of downstream effectors of nucleotide-excision repair to DNA lesion sites, including xeroderma pigmentosum groups A and F, is disrupted by the Pt nanozyme in cisplatin-resistant cancer cells, allowing excessive accumulation of the Pt-DNA adducts for highly efficient cancer therapy. Our study highlights the potential benefits of applying enzymatic activities to the use of the Pt nanomedicines, providing a paradigm shift in DNA damaging chemotherapy.
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Kurano T, Kanazawa T, Iioka S, Kondo H, Kosuge Y, Suzuki T. Intranasal Administration of N-acetyl-L-cysteine Combined with Cell-Penetrating Peptide-Modified Polymer Nanomicelles as a Potential Therapeutic Approach for Amyotrophic Lateral Sclerosis. Pharmaceutics 2022; 14:2590. [PMID: 36559085 PMCID: PMC9785447 DOI: 10.3390/pharmaceutics14122590] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/11/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022] Open
Abstract
Intranasal administration is a promising route for direct drug delivery to the brain; its combination with nanocarriers enhances delivery. We have previously shown that intranasal administration combined with PEG-PCL-Tat (a nanocarrier) efficiently delivers drugs to the brain and exhibits excellent therapeutic efficacy against brain diseases. We aimed to clarify whether intranasal administration combined with PEG-PCL-Tat represents a useful drug delivery system (DDS) for amyotrophic lateral sclerosis (ALS) pharmacotherapy. We used N-acetyl-L-cysteine (NAC) as a model drug with low transferability to the spinal cord and determined the physicochemical properties of NAC/PEG-PCL-Tat. After intranasal administration of NAC/PEG-PCL-Tat, we measured the survival duration of superoxide dismutase-1 G93A mutant transgenic mice (G93A mice), widely used in ALS studies, and quantitatively analyzed the tissue distribution of NAC/PEG-PCL-Tat in ddY mice. The mean particle size and zeta potential of NAC/PEG-PCL-Tat were 294 nm and + 9.29 mV, respectively. Treatment with repeated intranasal administration of NAC/PEG-PCL-Tat considerably prolonged the median survival of G93A mice by 11.5 days compared with that of untreated G93A mice. Moreover, the highest distribution after a single administration of NAC/PEG-PCL-Tat was measured in the spinal cord. These results suggest that intranasal administration combined with PEG-PCL-Tat might represent a useful DDS for ALS therapeutics.
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Affiliation(s)
- Takumi Kurano
- School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi 274-8555, Chiba, Japan
| | - Takanori Kanazawa
- School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi 274-8555, Chiba, Japan
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Shizuoka, Japan
| | - Shingo Iioka
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Shizuoka, Japan
| | - Hiromu Kondo
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Shizuoka, Japan
| | - Yasuhiro Kosuge
- School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi 274-8555, Chiba, Japan
| | - Toyofumi Suzuki
- School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi 274-8555, Chiba, Japan
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Su L, Sun Z, Qi F, Su H, Qian L, Li J, Zuo L, Huang J, Yu Z, Li J, Chen Z, Zhang S. GRP75-driven, cell-cycle-dependent macropinocytosis of Tat/pDNA-Ca 2+ nanoparticles underlies distinct gene therapy effect in ovarian cancer. J Nanobiotechnology 2022; 20:340. [PMID: 35858873 PMCID: PMC9301890 DOI: 10.1186/s12951-022-01530-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/26/2022] [Indexed: 11/10/2022] Open
Abstract
Practice of tumor-targeted suicide gene therapy is hampered by unsafe and low efficient delivery of plasmid DNA (pDNA). Using HIV-Tat-derived peptide (Tat) to non-covalently form Tat/pDNA complexes advances the delivery performance. However, this innovative approach is still limited by intracellular delivery efficiency and cell-cycle status. In this study, Tat/pDNA complexes were further condensed into smaller, nontoxic nanoparticles by Ca2+ addition. Formulated Tat/pDNA-Ca2+ nanoparticles mainly use macropinocytosis for intercellular delivery, and their macropinocytic uptake was persisted in mitosis (M-) phase and highly activated in DNA synthesis (S-) phase of cell-cycle. Over-expression or phosphorylation of a mitochondrial chaperone, 75-kDa glucose-regulated protein (GRP75), promoted monopolar spindle kinase 1 (MPS1)-controlled centrosome duplication and cell-cycle progress, but also driven cell-cycle-dependent macropinocytosis of Tat/pDNA-Ca2+ nanoparticles. Further in vivo molecular imaging based on DF (Fluc-eGFP)-TF (RFP-Rluc-HSV-ttk) system showed that Tat/pDNA-Ca2+ nanoparticles exhibited highly suicide gene therapy efficiency in mouse model xenografted with human ovarian cancer. Furthermore, arresting cell-cycle at S-phase markedly enhanced delivery performance of Tat/pDNA-Ca2+ nanoparticles, whereas targeting GRP75 reduced their macropinocytic delivery. More importantly, in vivo targeting GRP75 combined with cell-cycle or macropinocytosis inhibitors exhibited distinct suicide gene therapy efficiency. In summary, our data highlight that mitochondrial chaperone GRP75 moonlights as a biphasic driver underlying cell-cycle-dependent macropinocytosis of Tat/pDNA-Ca2+ nanoparticles in ovarian cancer.
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Affiliation(s)
- Linjia Su
- Department of Cell Biology, School of Medicine, Nankai University, Nankai District, 94 Weijin Road, Tianjin, 300071, People's Republic of China
| | - Zhe Sun
- School of Life Sciences, Tianjin University, Weijin Road 92, Tianjin, 300072, China
| | - Fangzheng Qi
- Department of Cell Biology, School of Medicine, Nankai University, Nankai District, 94 Weijin Road, Tianjin, 300071, People's Republic of China
| | - Huishan Su
- Department of Cell Biology, School of Medicine, Nankai University, Nankai District, 94 Weijin Road, Tianjin, 300071, People's Republic of China
| | - Luomeng Qian
- Department of Cell Biology, School of Medicine, Nankai University, Nankai District, 94 Weijin Road, Tianjin, 300071, People's Republic of China
| | - Jing Li
- Department of Cell Biology, School of Medicine, Nankai University, Nankai District, 94 Weijin Road, Tianjin, 300071, People's Republic of China
| | - Liang Zuo
- Department of Cell Biology, School of Medicine, Nankai University, Nankai District, 94 Weijin Road, Tianjin, 300071, People's Republic of China
| | - Jinhai Huang
- School of Life Sciences, Tianjin University, Weijin Road 92, Tianjin, 300072, China
| | - Zhilin Yu
- State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Nankai University, Weijin Road 94, Tianjin, 300071, China
| | - Jinping Li
- Department of Medical Biochemistry and Microbiology, Uppsala University, 75123, Uppsala, Sweden
| | - Zhinan Chen
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Sihe Zhang
- Department of Cell Biology, School of Medicine, Nankai University, Nankai District, 94 Weijin Road, Tianjin, 300071, People's Republic of China.
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Kim Y, Kim H, Kim EH, Jang H, Jang Y, Chi SG, Yang Y, Kim SH. The Potential of Cell-Penetrating Peptides for mRNA Delivery to Cancer Cells. Pharmaceutics 2022; 14:pharmaceutics14061271. [PMID: 35745843 PMCID: PMC9227323 DOI: 10.3390/pharmaceutics14061271] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 02/01/2023] Open
Abstract
In vitro transcribed mRNA for the synthesis of any given protein has shown great potential in cancer gene therapy, especially in cancer vaccines for immunotherapy. To overcome physiological barriers, such as rapid degradation by enzymatic attack and poor cellular uptake due to their large size and hydrophilic properties, many delivery carriers for mRNAs are being investigated for improving the bioavailability of mRNA. Recently, cell-penetrating peptides (CPPs) have received attention as promising tools for gene delivery. In terms of their biocompatibility and the ability to target specific cells with the versatility of peptide sequences, they may provide clues to address the challenges of conventional delivery systems for cancer mRNA delivery. In this study, optimal conditions for the CPP/mRNA complexes were identified in terms of complexation capacity and N/P ratio, and protection against RNase was confirmed. When cancer cells were treated at a concentration of 6.8 nM, which could deliver the highest amount of mRNA without toxicity, the amphipathic CPP/mRNA complexes with a size less than 200 nm showed high cellular uptake and protein expression. With advances in our understanding of CPPs, CPPs designed to target tumor tissues will be promising for use in developing a new class of mRNA delivery vehicles in cancer therapy.
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Affiliation(s)
- Yelee Kim
- Medical Materials Research Center, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (Y.K.); (H.K.); (E.H.K.); (H.J.); (Y.J.)
- Department of Life Sciences, Korea University, Seoul 02841, Korea;
| | - Hyosuk Kim
- Medical Materials Research Center, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (Y.K.); (H.K.); (E.H.K.); (H.J.); (Y.J.)
| | - Eun Hye Kim
- Medical Materials Research Center, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (Y.K.); (H.K.); (E.H.K.); (H.J.); (Y.J.)
- Department of Life Sciences, Korea University, Seoul 02841, Korea;
| | - Hochung Jang
- Medical Materials Research Center, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (Y.K.); (H.K.); (E.H.K.); (H.J.); (Y.J.)
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Korea
| | - Yeongji Jang
- Medical Materials Research Center, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (Y.K.); (H.K.); (E.H.K.); (H.J.); (Y.J.)
- Department of Life Sciences, Korea University, Seoul 02841, Korea;
| | - Sung-Gil Chi
- Department of Life Sciences, Korea University, Seoul 02841, Korea;
| | - Yoosoo Yang
- Medical Materials Research Center, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (Y.K.); (H.K.); (E.H.K.); (H.J.); (Y.J.)
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Korea
- Correspondence: (Y.Y.); (S.H.K.); Tel.: +82-2-958-6655 (Y.Y.); +82-2-958-6639 (S.H.K.)
| | - Sun Hwa Kim
- Medical Materials Research Center, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (Y.K.); (H.K.); (E.H.K.); (H.J.); (Y.J.)
- Correspondence: (Y.Y.); (S.H.K.); Tel.: +82-2-958-6655 (Y.Y.); +82-2-958-6639 (S.H.K.)
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A Re-evaluation of the Free Energy Profiles for Cell-Penetrating Peptides Across DOPC Membranes. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-021-10301-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Sadiq IZ, Muhammad A, Mada SB, Ibrahim B, Umar UA. Biotherapeutic effect of cell-penetrating peptides against microbial agents: a review. Tissue Barriers 2021; 10:1995285. [PMID: 34694961 DOI: 10.1080/21688370.2021.1995285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Selective permeability of biological membranes represents a significant barrier to the delivery of therapeutic substances into both microorganisms and mammalian cells, restricting the access of drugs into intracellular pathogens. Cell-penetrating peptides usually 5-30 amino acids with the characteristic ability to penetrate biological membranes have emerged as promising antimicrobial agents for treating infections as well as an effective delivery modality for biological conjugates such as nucleic acids, drugs, vaccines, nanoparticles, and therapeutic antibodies. However, several factors such as antimicrobial resistance and poor drug delivery of the existing medications justify the urgent need for developing a new class of antimicrobials. Herein, we review cell-penetrating peptides (CPPs) used to treat microbial infections. Although these peptides are biologically active for infections, effective transduction into membranes and cargo transport, serum stability, and half-life must be improved for optimum functions and development of next-generation antimicrobial agents.
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Affiliation(s)
- Idris Zubairu Sadiq
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Aliyu Muhammad
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Sanusi Bello Mada
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Bashiru Ibrahim
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Umar Aliyu Umar
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
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10
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The Peptide TAT-I24 with Antiviral Activity against DNA Viruses Binds Double-Stranded DNA with High Affinity. Biologics 2021. [DOI: 10.3390/biologics1010003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The peptide TAT-I24, composed of the 9-mer peptide I24 and the TAT (48-60) peptide, exerts broad-spectrum antiviral activity against several DNA viruses. The current model of the mode of action suggests a reduction of viral entry and also a possible interaction with the viral DNA upon virus entry. To further support this model, the present study investigates the DNA binding properties of TAT-I24. DNA binding was analysed by gel retardation of a peptide-complexed DNA, fluorescence reduction of DNA labelled with intercalating dyes and determination of binding kinetics by surface plasmon resonance. Molecular dynamics simulations of DNA-peptide complexes predict high-affinity binding and destabilization of the DNA by TAT-I24. The effect on viral DNA levels of infected cells were studied by real-time PCR and staining of viral DNA by bromodeoxyuridine. TAT-I24 binds double-stranded DNA with high affinity, leading to inhibition of polymerase binding and thereby blocking of de novo nucleic acid synthesis. Analysis of early steps of virus entry using a bromodeoxyuridine-labelled virus as well as quantification of viral genomes in the cells indicate direct binding of the peptide to the viral DNA. Saturation of the peptide with exogenous DNA can fully neutralize the inhibitory effect. The antiviral activity of TAT-I24 is linked to its ability to bind DNA with high affinity. This mechanism could be the basis for the development of novel antiviral agents.
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Lu J, Yue Y, Xiong S. Extracellular HMGB1 augments macrophage inflammation by facilitating the endosomal accumulation of ALD-DNA via TLR2/4-mediated endocytosis. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166184. [PMID: 34087422 DOI: 10.1016/j.bbadis.2021.166184] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/13/2021] [Accepted: 05/27/2021] [Indexed: 12/12/2022]
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with unclear pathogenesis. We previously reported that syngenetic, activated lymphocyte-derived DNA (ALD-DNA) could robustly elicit macrophage activation, which plays an important role in the pathogenesis of murine lupus nephritis. In addition, extracellular HMGB1 obviously facilitated the accumulation of ALD-DNA in endosomes and promoted macrophage inflammation. While the detailed mechanism was still unknown. In this study, we found that HMGB1 could obviously change the DNA uptake pathways in macrophages. ALD-DNA alone was mainly uptake by the low efficient and unselective macropinocytosis, while extracellular HMGB1 potently promoted the more efficient and specific clathrin-/caveolin-1-dependent receptor-mediated endocytosis pathways, and led to the rapid and abundant aggregation of ALD-DNA in endosomes. This effect relied on the DNA binding ability and TLR2/TLR4 of HMGB1. Our study not only helped us to understand the promotion mechanisms of extracellular HMGB1 on ALD-DNA-induced macrophage inflammation, but also provided some clues to the pathogenesis of SLE.
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Affiliation(s)
- Jincheng Lu
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Yan Yue
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Science, Soochow University, Suzhou 215123, People's Republic of China.
| | - Sidong Xiong
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Science, Soochow University, Suzhou 215123, People's Republic of China.
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12
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Ruzsics Z, Hoffmann K, Riedl A, Krawczyk A, Widera M, Sertznig H, Schipper L, Kapper-Falcone V, Debreczeny M, Ernst W, Grabherr R, Hengel H, Harant H. A Novel, Broad-Acting Peptide Inhibitor of Double-Stranded DNA Virus Gene Expression and Replication. Front Microbiol 2020; 11:601555. [PMID: 33281801 PMCID: PMC7705112 DOI: 10.3389/fmicb.2020.601555] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 10/27/2020] [Indexed: 12/30/2022] Open
Abstract
Viral infections are a global disease burden with only a limited number of antiviral agents available. Due to newly emerging viral pathogens and increasing occurrence of drug resistance, there is a continuous need for additional therapeutic options, preferably with extended target range. In the present study, we describe a novel antiviral peptide with broad activity against several double-stranded DNA viruses. The 22-mer peptide TAT-I24 potently neutralized viruses such as herpes simplex viruses, adenovirus type 5, cytomegalovirus, vaccinia virus, and simian virus 40 in cell culture models, while being less active against RNA viruses. The peptide TAT-I24 therefore represents a novel and promising drug candidate for use against double-stranded DNA viruses.
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Affiliation(s)
- Zsolt Ruzsics
- Institute of Virology, Medical Center-University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany.,German Consulting Laboratory for HSV and VZV, Medical Center-University of Freiburg, Freiburg, Germany
| | - Katja Hoffmann
- Institute of Virology, Medical Center-University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - André Riedl
- Institute of Virology, Medical Center-University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Adalbert Krawczyk
- Department of Infectious Diseases, West German Centre of Infectious Diseases, Universitätsmedizin Essen, University Duisburg-Essen, Essen, Germany.,Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Marek Widera
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Institute of Medical Virology, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt, Germany
| | - Helene Sertznig
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Leonie Schipper
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Valeria Kapper-Falcone
- Institute of Virology, Medical Center-University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany.,German Consulting Laboratory for HSV and VZV, Medical Center-University of Freiburg, Freiburg, Germany
| | - Monika Debreczeny
- VIBT Imaging Center, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Wolfgang Ernst
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Reingard Grabherr
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Hartmut Hengel
- Institute of Virology, Medical Center-University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany.,German Consulting Laboratory for HSV and VZV, Medical Center-University of Freiburg, Freiburg, Germany
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13
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Tissue-Specific Delivery of CRISPR Therapeutics: Strategies and Mechanisms of Non-Viral Vectors. Int J Mol Sci 2020; 21:ijms21197353. [PMID: 33027946 PMCID: PMC7583726 DOI: 10.3390/ijms21197353] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 09/24/2020] [Accepted: 09/27/2020] [Indexed: 02/07/2023] Open
Abstract
The Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) genome editing system has been the focus of intense research in the last decade due to its superior ability to desirably target and edit DNA sequences. The applicability of the CRISPR-Cas system to in vivo genome editing has acquired substantial credit for a future in vivo gene-based therapeutic. Challenges such as targeting the wrong tissue, undesirable genetic mutations, or immunogenic responses, need to be tackled before CRISPR-Cas systems can be translated for clinical use. Hence, there is an evident gap in the field for a strategy to enhance the specificity of delivery of CRISPR-Cas gene editing systems for in vivo applications. Current approaches using viral vectors do not address these main challenges and, therefore, strategies to develop non-viral delivery systems are being explored. Peptide-based systems represent an attractive approach to developing gene-based therapeutics due to their specificity of targeting, scale-up potential, lack of an immunogenic response and resistance to proteolysis. In this review, we discuss the most recent efforts towards novel non-viral delivery systems, focusing on strategies and mechanisms of peptide-based delivery systems, that can specifically deliver CRISPR components to different cell types for therapeutic and research purposes.
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14
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In Vitro Assays: Friends or Foes of Cell-Penetrating Peptides. Int J Mol Sci 2020; 21:ijms21134719. [PMID: 32630650 PMCID: PMC7369778 DOI: 10.3390/ijms21134719] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 06/24/2020] [Accepted: 07/01/2020] [Indexed: 12/20/2022] Open
Abstract
The cell membrane is a complex and highly regulated system that is composed of lipid bilayer and proteins. One of the main functions of the cell membrane is the regulation of cell entry. Cell-penetrating peptides (CPPs) are defined as peptides that can cross the plasma membrane and deliver their cargo inside the cell. The uptake of a peptide is determined by its sequence and biophysicochemical properties. At the same time, the uptake mechanism and efficiency are shown to be dependent on local peptide concentration, cell membrane lipid composition, characteristics of the cargo, and experimental methodology, suggesting that a highly efficient CPP in one system might not be as productive in another. To better understand the dependence of CPPs on the experimental system, we present a review of the in vitro assays that have been employed in the literature to evaluate CPPs and CPP-cargos. Our comprehensive review suggests that utilization of orthogonal assays will be more effective for deciphering the true ability of CPPs to translocate through the membrane and enter the cell cytoplasm.
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15
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Egorova AA, Shtykalova SV, Maretina MA, Selyutin AV, Shved NY, Krylova NV, Ilina AV, Pyankov IA, Freund SA, Selkov SA, Baranov VS, Kiselev AV. Cys-Flanked Cationic Peptides For Cell Delivery of the Herpes Simplex Virus Thymidine Kinase Gene for Suicide Gene Therapy of Uterine Leiomyoma. Mol Biol 2020. [DOI: 10.1134/s0026893320030061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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16
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Taylor RE, Zahid M. Cell Penetrating Peptides, Novel Vectors for Gene Therapy. Pharmaceutics 2020; 12:E225. [PMID: 32138146 PMCID: PMC7150854 DOI: 10.3390/pharmaceutics12030225] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/27/2020] [Accepted: 03/01/2020] [Indexed: 12/31/2022] Open
Abstract
Cell penetrating peptides (CPPs), also known as protein transduction domains (PTDs), first identified ~25 years ago, are small, 6-30 amino acid long, synthetic, or naturally occurring peptides, able to carry variety of cargoes across the cellular membranes in an intact, functional form. Since their initial description and characterization, the field of cell penetrating peptides as vectors has exploded. The cargoes they can deliver range from other small peptides, full-length proteins, nucleic acids including RNA and DNA, liposomes, nanoparticles, and viral particles as well as radioisotopes and other fluorescent probes for imaging purposes. In this review, we will focus briefly on their history, classification system, and mechanism of transduction followed by a summary of the existing literature on use of CPPs as gene delivery vectors either in the form of modified viruses, plasmid DNA, small interfering RNA, oligonucleotides, full-length genes, DNA origami or peptide nucleic acids.
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Affiliation(s)
- Rebecca E. Taylor
- Mechanical Engineering, Biomedical Engineering and Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA;
| | - Maliha Zahid
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15201, USA
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17
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Kokotidou C, Jonnalagadda SVR, Orr AA, Vrentzos G, Kretsovali A, Tamamis P, Mitraki A. Designer Amyloid Cell-Penetrating Peptides for Potential Use as Gene Transfer Vehicles. Biomolecules 2019; 10:E7. [PMID: 31861408 PMCID: PMC7023140 DOI: 10.3390/biom10010007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/15/2019] [Accepted: 12/16/2019] [Indexed: 12/24/2022] Open
Abstract
Cell-penetrating peptides are used extensively to deliver molecules into cells due to their unique characteristics such as rapid internalization, charge, and non-cytotoxicity. Amyloid fibril biomaterials were reported as gene transfer or retroviral infection enhancers; no cell internalization of the peptides themselves is reported so far. In this study, we focus on two rationally and computationally designed peptides comprised of β-sheet cores derived from naturally occurring protein sequences and designed positively charged and aromatic residues exposed at key residue positions. The β-sheet cores bestow the designed peptides with the ability to self-assemble into amyloid fibrils. The introduction of positively charged and aromatic residues additionally promotes DNA condensation and cell internalization by the self-assembled material formed by the designed peptides. Our results demonstrate that these designer peptide fibrils can efficiently enter mammalian cells while carrying packaged luciferase-encoding plasmid DNA, and they can act as a protein expression enhancer. Interestingly, the peptides additionally exhibited strong antimicrobial activity against the enterobacterium Escherichia coli.
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Affiliation(s)
- Chrysoula Kokotidou
- Department of Materials Science and Technology, University of Crete, 70013 Heraklion, Grete, Greece;
- Institute of Electronic Structure and Laser (IESL) FORTH, 70013 Heraklion, Crete, Greece
| | - Sai Vamshi R. Jonnalagadda
- Artie McFerrin Department of Chemical Engineering, Texas A&M University College Station, TX 77843-3251, USA; (S.V.R.J.); (A.A.O.)
| | - Asuka A. Orr
- Artie McFerrin Department of Chemical Engineering, Texas A&M University College Station, TX 77843-3251, USA; (S.V.R.J.); (A.A.O.)
| | - George Vrentzos
- Institute of Molecular Biology and Biotechnology (IMBB) FORTH, 70013 Heraklion, Crete, Greece; (G.V.); (A.K.)
| | - Androniki Kretsovali
- Institute of Molecular Biology and Biotechnology (IMBB) FORTH, 70013 Heraklion, Crete, Greece; (G.V.); (A.K.)
| | - Phanourios Tamamis
- Artie McFerrin Department of Chemical Engineering, Texas A&M University College Station, TX 77843-3251, USA; (S.V.R.J.); (A.A.O.)
| | - Anna Mitraki
- Department of Materials Science and Technology, University of Crete, 70013 Heraklion, Grete, Greece;
- Institute of Electronic Structure and Laser (IESL) FORTH, 70013 Heraklion, Crete, Greece
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18
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Chinak O, Golubitskaya E, Pyshnaya I, Stepanov G, Zhuravlev E, Richter V, Koval O. Nucleic Acids Delivery Into the Cells Using Pro-Apoptotic Protein Lactaptin. Front Pharmacol 2019; 10:1043. [PMID: 31619993 PMCID: PMC6759801 DOI: 10.3389/fphar.2019.01043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 08/16/2019] [Indexed: 11/30/2022] Open
Abstract
Cell penetrating peptides (CPP) are promising agents for transporting diverse cargo into the cells. The amino acid sequence and the mechanism of lactaptin entry into the cells allow it to be included into CPP group. Lactaptin, the fragment of human milk kappa-casein, and recombinant lactaptin (RL2) were initially discovered as molecules that induced apoptosis of cultured cancer cells and did not affect non-malignant cells. Here, we analyzed the recombinant lactaptin potency to form complexes with nucleic acids and to act as a gene delivery system. To study RL2-dependent delivery, three type of nucleic acid were used as a models: plasmid DNA (pDNA), siRNA, and non-coding RNA which allow to detect intracellular localization through their functional activity. We have demonstrated that RL2 formed positively charged noncovalent 110-nm-sized complexes with enhanced green fluorescent protein (EGFP)-expressing plasmid DNA. Ca2+ ions stabilized these complexes, whereas polyanion heparin displaced DNA from the complexes. The functional activity of delivered nucleic acids were assessed by fluorescent microscopy using A549 lung adenocarcinoma cells and A431 epidermoid carcinoma cells. We observed that RL2:pDNA complexes provided EGFP expression in the treated cells and that strongly confirmed the entering pDNA into the cells. The efficiency of cell transformation by these complexes increased when RL2:pDNA ratio increased. Pre-treatment of the cells with anti-RL2 antibodies partly inhibited the entry of pDNA into the cells. RL2-mediated delivery of siRNA against EGFP was analyzed when A549 cells were co-transfected with EGFP-pDNA and RL2:siRNA complexes. siRNA against EGFP efficiently inhibited the expression of EGFP being delivered as RL2:siRNA complexes. We have previously demonstrated that non-coding U25 small nucleolar RNA (snoRNA) can decrease cell viability. Cancer cell transfection with RL2-snoRNA U25 complexes lead to a substantial decrease of cell viability, confirming the efficiency of snoRNA U25 delivery. Collectively, these findings indicate that recombinant lactaptin is able to deliver noncovalently associated nucleic acids into cancer cells in vitro.
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Affiliation(s)
- Olga Chinak
- Laboratory of Biotechnology, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Ekaterina Golubitskaya
- Laboratory of Genome Editing, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Inna Pyshnaya
- Laboratory of Biomedical Chemistry, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Grigory Stepanov
- Laboratory of Genome Editing, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Evgenii Zhuravlev
- Laboratory of Genome Editing, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Vladimir Richter
- Laboratory of Biotechnology, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Olga Koval
- Laboratory of Biotechnology, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
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19
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Zheng XS, Zong C, Wang X, Ren B. Cell-Penetrating Peptide Conjugated SERS Nanosensor for in Situ Intracellular pH Imaging of Single Living Cells during Cell Cycle. Anal Chem 2019; 91:8383-8389. [DOI: 10.1021/acs.analchem.9b01191] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xiao-Shan Zheng
- MOE Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Cheng Zong
- MOE Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Wang
- School of Aerospace Engineering, Xiamen University, Xiamen 361005, China
| | - Bin Ren
- MOE Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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20
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Kasai H, Inoue K, Imamura K, Yuvienco C, Montclare JK, Yamano S. Efficient siRNA delivery and gene silencing using a lipopolypeptide hybrid vector mediated by a caveolae-mediated and temperature-dependent endocytic pathway. J Nanobiotechnology 2019; 17:11. [PMID: 30670041 PMCID: PMC6341701 DOI: 10.1186/s12951-019-0444-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 01/07/2019] [Indexed: 12/15/2022] Open
Abstract
Background We developed a non-viral vector, a combination of HIV-1 Tat peptide modified with histidine and cysteine (mTat) and polyethylenimine, jetPEI (PEI), displaying the high efficiency of plasmid DNA transfection with little toxicity. Since the highest efficiency of INTERFERin (INT), a cationic amphiphilic lipid-based reagent, for small interfering RNA (siRNA) transfection among six commercial reagents was shown, we hypothesized that combining mTat/PEI with INT would improve transfection efficiency of siRNA delivery. To elucidate the efficacy of the hybrid vector for siRNA silencing, β-actin expression was measured after siRNA β-actin was transfected with mTat/PEI/INT or other vectors in HSC-3 human oral squamous carcinoma cells. Results mTat/PEI/INT/siRNA produced significant improvement in transfection efficiency with little cytotoxicity compared to other vectors and achieved ≈ 100% knockdown of β-actin expression compared to non-treated cells. The electric charge of mTat/PEI/INT/siRNA was significantly higher than INT/siRNA. The particle size of mTat/PEI/INT/siRNA was significantly smaller than INT/siRNA. Filipin III and β-cyclodextrin, an inhibitor of caveolae-mediated endocytosis, significantly inhibited mTat/PEI/INT/siRNA transfection, while chlorpromazine, an inhibitor of clathrin-mediated endocytosis, did not inhibit mTat/PEI/INT/siRNA transfection. Furthermore, the transfection efficiency of mTat/PEI/INT at 4 °C was significantly lower than 37 °C. Conclusions These findings demonstrated the feasibility of using mTat/PEI/INT as a potentially attractive non-viral vector for siRNA delivery.
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Affiliation(s)
- Hironori Kasai
- Department of Prosthodontics, New York University College of Dentistry, New York, NY, 10010, USA
| | - Kenji Inoue
- Department of Prosthodontics, New York University College of Dentistry, New York, NY, 10010, USA
| | - Kentaro Imamura
- Department of Prosthodontics, New York University College of Dentistry, New York, NY, 10010, USA.,Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - Carlo Yuvienco
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, NY, 11201, USA
| | - Jin K Montclare
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, NY, 11201, USA.,Department of Chemistry, New York University, New York, NY, 10003, USA.,Department of Biomaterials, New York University College of Dentistry, New York, NY, 10010, USA.,Department of Radiology, New York University School of Medicine, New York, NY, 10010, USA
| | - Seiichi Yamano
- Department of Prosthodontics, New York University College of Dentistry, New York, NY, 10010, USA.
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21
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Kurnaeva MA, Sheval EV, Musinova YR, Vassetzky YS. Tat basic domain: A "Swiss army knife" of HIV-1 Tat? Rev Med Virol 2019; 29:e2031. [PMID: 30609200 DOI: 10.1002/rmv.2031] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/05/2018] [Accepted: 12/06/2018] [Indexed: 01/16/2023]
Abstract
Tat (transactivator of transcription) regulates transcription from the HIV provirus. It plays a crucial role in disease progression, supporting efficient replication of the viral genome. Tat also modulates many functions in the host genome via its interaction with chromatin and proteins. Many of the functions of Tat are associated with its basic domain rich in arginine and lysine residues. It is still unknown why the basic domain exhibits so many diverse functions. However, the highly charged basic domain, coupled with the overall structural flexibility of Tat protein itself, makes the basic domain a key player in binding to or associating with cellular and viral components. In addition, the basic domain undergoes diverse posttranslational modifications, which further expand and modulate its functions. Here, we review the current knowledge of Tat basic domain and its versatile role in the interaction between the virus and the host cell.
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Affiliation(s)
- Margarita A Kurnaeva
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russia
| | - Eugene V Sheval
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia.,LIA 1066 LFR2O French-Russian Joint Cancer Research Laboratory, CNRS, Villejuif, France
| | - Yana R Musinova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,LIA 1066 LFR2O French-Russian Joint Cancer Research Laboratory, CNRS, Villejuif, France.,Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia
| | - Yegor S Vassetzky
- LIA 1066 LFR2O French-Russian Joint Cancer Research Laboratory, CNRS, Villejuif, France.,Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia.,Nuclear Organization and Pathologies, CNRS, UMR8126, Université Paris-Sud, Institut Gustave Roussy, Villejuif, France
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22
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Zilkowski I, Ziouti F, Schulze A, Hauck S, Schmidt S, Mainz L, Sauer M, Albrecht K, Jundt F, Groll J. Nanogels Enable Efficient miRNA Delivery and Target Gene Downregulation in Transfection-Resistant Multiple Myeloma Cells. Biomacromolecules 2018; 20:916-926. [DOI: 10.1021/acs.biomac.8b01553] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ilona Zilkowski
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Fani Ziouti
- Department of Internal Medicine II, University Hospital Würzburg, Oberdürrbacher Straße 6, 97080 Würzburg, Germany
| | - Andres Schulze
- Department of Internal Medicine II, University Hospital Würzburg, Oberdürrbacher Straße 6, 97080 Würzburg, Germany
| | - Stefanie Hauck
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Stefanie Schmidt
- Department of Internal Medicine II, University Hospital Würzburg, Oberdürrbacher Straße 6, 97080 Würzburg, Germany
| | - Laura Mainz
- Department of Internal Medicine II, University Hospital Würzburg, Oberdürrbacher Straße 6, 97080 Würzburg, Germany
| | - Markus Sauer
- Chair for Biotechnology and Biophysics, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Krystyna Albrecht
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Franziska Jundt
- Department of Internal Medicine II, University Hospital Würzburg, Oberdürrbacher Straße 6, 97080 Würzburg, Germany
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
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23
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Niu X, Gao Z, Qi S, Su L, Yang N, Luan X, Li J, Zhang Q, An Y, Zhang S. Macropinocytosis activated by oncogenic Dbl enables specific targeted delivery of Tat/pDNA nano-complexes into ovarian cancer cells. Int J Nanomedicine 2018; 13:4895-4911. [PMID: 30214196 PMCID: PMC6122892 DOI: 10.2147/ijn.s171361] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Successful implementation of gene therapy heavily relies on efficiently delivering genetic materials and specific targeting into cells. Oncogene-driven endocytosis stimulates nutrient uptake and also develops an endocytosis-mediated defense against therapeutic agents. Cell-penetrating peptides, typically HIV-Tat, are well known for efficient delivery of nucleic acid drugs but lack targeting specificity. Various passive targeting strategies were pursued to enhance the tumor targeting efficiency; however, they are still limited by complicated cellular endocytosis routes and the heterogeneity of cancer types. METHODS Tat/pDNA complexes were noncovalently compacted and their physiochemical properties were determined. The siRNA pool and pLV-RNAi-GFP lentivirus were used to knock down dbl oncogene (originally isolated from diffuse B-cell lymphoma) expression, and its overexpression was performed by plasmid transient transfection. The cellular uptake of fluorescent ligands was quantified by confocal imaging and flow cytometry analysis. The transgene efficiency was determined by the Luciferase expression assay. Rho GTPase activation was checked by the GST-Rho GTPase-binding domain pull-down assay. RESULTS pGL3 plasmid DNA was noncovalently compacted with the Tat peptide into nano-size complexes at high N/P ratios. Macropinocytosis, a clathrin- and caveolin-independent endocytosis process, was shown to contribute to the uptake of middle-sized (∼600 nm) Tat/pGL3 complexes. Cell-type-specific variation in macropinocytosis was essentially controlled by the action of the Dbl oncogene. Onco-Dbl presentation constantly induced a high level of macropinocytosis activity in ovarian cancer cells. Onco-Dbl overexpression hyperstimulated macropinocytosis enhancement in cells mainly through actin cytoskeleton reorganization mediated by the PH domain and Rac1 activation. The Dbl-driven Rho GTPase signaling collectively determined the cell-type-specific macropinocytosis phenotype. CONCLUSION Such an aspect can be exploited to selectively confer targeted delivery of Tat/pDNA nano-complexes into ovarian cancer cells. Our work provides a novel alternative for targeted delivery of cell-penetrating peptide-based nucleic acid drugs into certain tumor types if specific endocytosis pathways are used.
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Affiliation(s)
- Xiuran Niu
- Department of Cell Biology, School of Medicine, Nankai University, Tianjin, People's Republic of China,
| | - Zhihui Gao
- Department of Cell Biology, School of Medicine, Nankai University, Tianjin, People's Republic of China,
| | - Shanshan Qi
- Department of Cell Biology, School of Medicine, Nankai University, Tianjin, People's Republic of China,
| | - Linjia Su
- Department of Cell Biology, School of Medicine, Nankai University, Tianjin, People's Republic of China,
| | - Nan Yang
- Department of Cell Biology, School of Medicine, Nankai University, Tianjin, People's Republic of China,
| | - Xiuli Luan
- Department of Cell Biology, School of Medicine, Nankai University, Tianjin, People's Republic of China,
| | - Jia Li
- Department of Cell Biology, School of Medicine, Nankai University, Tianjin, People's Republic of China,
| | - Qing Zhang
- Department of Clinical Laboratory, Cancer Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Yingli An
- State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, Nankai University, Tianjin, People's Republic of China
| | - Sihe Zhang
- Department of Cell Biology, School of Medicine, Nankai University, Tianjin, People's Republic of China,
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24
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Trends in the Binding of Cell Penetrating Peptides to siRNA: A Molecular Docking Study. JOURNAL OF BIOPHYSICS 2017; 2017:1059216. [PMID: 28321253 PMCID: PMC5340175 DOI: 10.1155/2017/1059216] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/15/2017] [Indexed: 11/20/2022]
Abstract
The use of gene therapeutics, including short interfering RNA (siRNA), is limited by the lack of efficient delivery systems. An appealing approach to deliver gene therapeutics involves noncovalent complexation with cell penetrating peptides (CPPs) which are able to penetrate the cell membranes of mammals. Although a number of CPPs have been discovered, our understanding of their complexation and translocation of siRNA is as yet insufficient. Here, we report on computational studies comparing the binding affinities of CPPs with siRNA, considering a variety of CPPs. Specifically, seventeen CPPs from three different categories, cationic, amphipathic, and hydrophobic CPPs, were studied. Molecular mechanics were used to minimize structures, while molecular docking calculations were used to predict the orientation and favorability of sequentially binding multiple peptides to siRNA. Binding scores from docking calculations were highest for amphipathic peptides over cationic and hydrophobic peptides. Results indicate that initial complexation of peptides will likely occur along the major groove of the siRNA, driven by electrostatic interactions. Subsequent binding of CPPs is likely to occur in the minor groove and later on bind randomly, to siRNA or previously bound CPPs, through hydrophobic interactions. However, hydrophobic CPPs do not show this binding pattern. Ultimately binding yields a positively charged nanoparticle capable of noninvasive cellular import of therapeutic molecules.
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Peptide-based strategies for enhanced cell uptake, transcellular transport, and circulation: Mechanisms and challenges. Adv Drug Deliv Rev 2017; 110-111:52-64. [PMID: 27313077 DOI: 10.1016/j.addr.2016.06.002] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/27/2016] [Accepted: 06/06/2016] [Indexed: 12/12/2022]
Abstract
Peptides are emerging as a new tool in drug and gene delivery. Peptide-drug conjugates and peptide-modified drug delivery systems provide new opportunities to avoid macrophage recognition and subsequent phagocytosis, cross endothelial and epithelial barriers, and enter the cytoplasm of target cells. Peptides are relatively small, low-cost, and are stable in a wide range of biological conditions. In this review, we summarize recent work in designing peptides to enhance penetration of biological barriers, increase cell uptake, and avoid the immune system. We highlight recent successes and contradictory results, and outline common emerging concepts and design rules. The development of sequence-structure-function relationships and standard protocols for benchmarking will be a key to progress in the field.
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Gomes Dos Reis L, Svolos M, Hartwig B, Windhab N, Young PM, Traini D. Inhaled gene delivery: a formulation and delivery approach. Expert Opin Drug Deliv 2016; 14:319-330. [PMID: 27426972 DOI: 10.1080/17425247.2016.1214569] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Gene therapy is a potential alternative to treat a number of diseases. Different hurdles are associated with aerosol gene delivery due to the susceptibility of plasmid DNA (pDNA) structure to be degraded during the aerosolization process. Different strategies have been investigated in order to protect and efficiently deliver pDNA to the lungs using non-viral vectors. To date, no successful therapy involving non-viral vectors has been marketed, highlighting the need for further investigation in this field. Areas covered: This review is focused on the formulation and delivery of DNA to the lungs, using non-viral vectors. Aerosol gene formulations are divided according to the current delivery systems for the lung: nebulizers, dry powder inhalers and pressurized metered dose inhalers; highlighting its benefits, challenges and potential application. Expert opinion: Successful aerosol delivery is achieved when the supercoiled DNA structure is protected during aerosolization. A formulation strategy or compounds that can protect, stabilize and efficiently transfect DNA into the cells is desired in order to produce an effective, low-cost and safe formulation. Nebulizers and dry powder inhalers are the most promising approaches to be used for aerosol delivery, due to the lower shear forces involved. In this context it is also important to highlight the importance of considering the 'pDNA-formulation-device system' as an integral part of the formulation development for a successful nucleic acid delivery.
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Affiliation(s)
- Larissa Gomes Dos Reis
- a Respiratory Technology, Woolcock Institute of Medical Research and Discipline of Pharmacology, Sydney Medical School , Sydney University , Glebe , Australia
| | - Maree Svolos
- a Respiratory Technology, Woolcock Institute of Medical Research and Discipline of Pharmacology, Sydney Medical School , Sydney University , Glebe , Australia
| | - Benedikt Hartwig
- b Evonik Industries, Nutrition and Care AG , Darmstadt , Germany
| | - Norbert Windhab
- b Evonik Industries, Nutrition and Care AG , Darmstadt , Germany
| | - Paul M Young
- a Respiratory Technology, Woolcock Institute of Medical Research and Discipline of Pharmacology, Sydney Medical School , Sydney University , Glebe , Australia
| | - Daniela Traini
- a Respiratory Technology, Woolcock Institute of Medical Research and Discipline of Pharmacology, Sydney Medical School , Sydney University , Glebe , Australia
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Liu C, Jiang K, Tai L, Liu Y, Wei G, Lu W, Pan W. Facile Noninvasive Retinal Gene Delivery Enabled by Penetratin. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19256-67. [PMID: 27400087 DOI: 10.1021/acsami.6b04551] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Gene delivery to the posterior segment of the eye is severely hindered by the impermeability of defensive barriers; therefore, in clinical settings, genomic medicines are mainly administered by intravitreal injection. We previously found that penetratin could transport the covalently conjugated fluorophore to the fundus oculi by topical instillation. In this study, gene delivery systems enabled by penetratin were designed based on electrostatic binding to target the retina via a noninvasive administration route and prepared with red fluorescent protein plasmid (pRFP) and/or poly(amidoamine) dendrimer of low molecular weight (G3 PAMAM). Formulation optimization, structure confirmation, and characterization were subsequently conducted. Penetratin alone showed limited ability to condense the plasmid but had powerful uptake and transfection by corneal and conjunctival cells. G3 PAMAM was nontoxic to the ocular cells, and when introduced into the penetratin-incorporated complex, the plasmid was condensed more compactly. Therefore, further improved cellular uptake and transfection were observed. After being instilled in the conjunctival sac of rats, the intact complexes penetrated rapidly from the ocular surface into the fundus and resided in the retina for more than 8 h, which resulted in efficient expression of RFP in the posterior segment. Intraocular distribution of the complexes suggested that the plasmids were absorbed into the eyes through a noncorneal pathway during which penetratin played a crucial role. This study provides a facile and friendly approach for intraocular gene delivery and is an important step toward the development of noninvasive gene therapy for posterior segment diseases.
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Affiliation(s)
- Chang Liu
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Kuan Jiang
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Lingyu Tai
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
- School of Pharmacy, Shenyang Pharmaceutical University , Shenyang 110016, China
| | - Yu Liu
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Gang Wei
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Weiyue Lu
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Weisan Pan
- School of Pharmacy, Shenyang Pharmaceutical University , Shenyang 110016, China
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Fang WB, Yao M, Brummer G, Acevedo D, Alhakamy N, Berkland C, Cheng N. Targeted gene silencing of CCL2 inhibits triple negative breast cancer progression by blocking cancer stem cell renewal and M2 macrophage recruitment. Oncotarget 2016; 7:49349-49367. [PMID: 27283985 PMCID: PMC5226513 DOI: 10.18632/oncotarget.9885] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 05/20/2016] [Indexed: 12/14/2022] Open
Abstract
Triple negative breast cancers are an aggressive subtype of breast cancer, characterized by the lack of estrogen receptor, progesterone receptor and Her2 expression. Triple negative breast cancers are non-responsive to conventional anti-hormonal and Her2 targeted therapies, making it necessary to identify new molecular targets for therapy. The chemokine CCL2 is overexpressed in invasive breast cancers, and regulates breast cancer progression through multiple mechanisms. With few approaches to target CCL2 activity, its value as a therapeutic target is unclear. In these studies, we developed a novel gene silencing approach that involves complexing siRNAs to TAT cell penetrating peptides (Ca-TAT) through non-covalent calcium cross-linking. Ca-TAT/siRNA complexes penetrated 3D collagen cultures of breast cancer cells and inhibited CCL2 expression more effectively than conventional antibody neutralization. Ca-TAT/siRNA complexes targeting CCL2 were delivered to mice bearing MDA-MB-231 breast tumor xenografts. In vivo CCL2 gene silencing inhibited primary tumor growth and metastasis, associated with a reduction in cancer stem cell renewal and recruitment of M2 macrophages. These studies are the first to demonstrate that targeting CCL2 expression in vivo may be a viable therapeutic approach to treating triple negative breast cancer.
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Affiliation(s)
- Wei Bin Fang
- Department of Pathology and Laboratory, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Min Yao
- Department of Pathology and Laboratory, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Gage Brummer
- Department of Pathology and Laboratory, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Diana Acevedo
- Department of Pathology and Laboratory, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Nabil Alhakamy
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66045, USA
| | - Cory Berkland
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66045, USA
| | - Nikki Cheng
- Department of Pathology and Laboratory, University of Kansas Medical Center, Kansas City, KS 66160, USA
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Kanazawa T, Yamazaki M, Fukuda T, Takashima Y, Okada H. Versatile nuclear localization signal-based oligopeptide as a gene vector. Biol Pharm Bull 2016; 38:559-65. [PMID: 25832636 DOI: 10.1248/bpb.b14-00706] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To develop a versatile nuclear-targeted gene vector, nuclear localization signal (NLS) oligopeptides combining cysteine (C), histidine (H), and stearic acid (STR) were investigated in this study. The original SV40 sequence (SV40: Pro-Lys-Lys-Lys-Arg-Lys-Val) was selected as the NLS sequence, and physical characterizations of various NLS-based oligopeptides (CSV40C, STR-CSV40C, and STR-CH2SV40H2C), including mean diameter, zeta-potential, complex condensation, and decondensation, were evaluated. In addition, cellular and nuclear uptake of plasmid DNA (pDNA) and gene expression in COS7 and dendritic cells (JAWS II) were determined. As a result, C and STR enhanced formation of a smaller and more stable nano-complex with pDNA based on ionic interactions, the disulfide linkage and hydrophobic interactions. STR-CSV40C and STR-CH2SV40H2C had significantly higher cellular uptake ability and transfection efficiency than SV40 and CSV40C. In particular, STR-CH2SV40H2C had higher nuclear uptake and gene expression efficiency than STR-CSV40C. Furthermore, STR-CH2SV40H2C could deliver pDNA to the nuclei and had high gene expression efficiency in dendritic cells. Our results indicate that STR-CH2SV40H2C is a promising gene delivery system in non- or slow-dividing cells.
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Affiliation(s)
- Takanori Kanazawa
- Department of Pharmaceutical Science, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
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Pan Q, Li W, Yuan X, Rakhmanov Y, Wang P, Lu R, Mao Z, Shang X, You H. Chondrogenic effect of cell-based scaffold of self-assembling peptides/PLGA-PLL loading the hTGFβ3 plasmid DNA. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:19. [PMID: 26676865 DOI: 10.1007/s10856-015-5631-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 11/13/2015] [Indexed: 06/05/2023]
Abstract
With the application of tissue engineering to tissue regeneration, additional new complexes have been made in response to the challenge of cartilage-injury repair. This study was performed to construct a rat precartilaginous stem cells-based scaffold of self-assembling peptides RADA16-I/PLGA-PLL (poly-L-lysine coated PLGA) as extracellular matrix loading the NLS-TAT as a peptide-based carrier for a plasmid DNA containing hTGFβ3. After composites were cultured for 1, 2, 3 and 4 weeks, respectively, the results showed that the levels of chondrogenic-related gene expression were higher in the experimental group with and hTGFβ3 gene by reverse transcription-polymerase chain reaction, and with higher histochemical and immunohistochemical expression. hTGFβ3 protein expression had increased at 4 weeks based on western blot analysis. The results of this study show that a complex may be a suitable scaffold for cartilage repair and offer a strategy for tissue regeneration through the use of tissue engineering.
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Affiliation(s)
- Qiyong Pan
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Wenkai Li
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Xuefeng Yuan
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Yeltay Rakhmanov
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Pengcheng Wang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Rui Lu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Zekai Mao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Xiaobin Shang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Hongbo You
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
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31
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Vvedenskii AV, Sizova SV, Kuzmich AI. The physicochemical properties of histone H2A and modified histone H2A-TAT complexes with plasmid DNA. Biophysics (Nagoya-shi) 2015. [DOI: 10.1134/s0006350915050231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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32
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Komarova EY, Meshalkina DA, Aksenov ND, Pchelin IM, Martynova E, Margulis BA, Guzhova IV. The discovery of Hsp70 domain with cell-penetrating activity. Cell Stress Chaperones 2015; 20:343-54. [PMID: 25387797 PMCID: PMC4326381 DOI: 10.1007/s12192-014-0554-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 10/21/2014] [Accepted: 10/28/2014] [Indexed: 12/19/2022] Open
Abstract
Chaperone Hsp70 can cross the plasma membrane of living cells using mechanisms that so far have not received much research attention. Searching the part of the molecule that is responsible for transport ability of Hsp70, we found a cationic sequence composed of 20 amino acid residues on its surface, KST peptide, which was used in further experiments. We showed that KST peptide enters living cells of various origins with the same efficiency as the full-length chaperone. KST peptide is capable of carrying cargo with a molecular weight 30 times greater than its own into cells. When we compared the membrane-crossing activity of KST peptide in complex with Avidin (KST-Av complex) with that of similarly linked canonical TAT peptide, we found that TAT peptide penetrated SK-N-SH human neuroblastoma cells at a similar rate and efficiency as the KST peptide. Furthermore, KST peptide can carry protein complexes consisting of a specific antibody coupled to the peptide through the Avidin bridge. An antibody to Hsp70 delivered to SK-N-SH cells with high expression level of Hsp70 reduced the protective power of the chaperone and sensitized the cells to the pro-apoptotic effect of staurosporine. We studied the mechanisms of penetration of KST-Av and full-length Hsp70 inside human neuroblastoma SK-N-SH and human erythroleukemia K-562 cells and found that both used an active intracellular transport mechanism that included vesicular structures and negatively charged lipid membrane domains. Competition analysis of intracellular transport showed that the chaperone reduced intracellular penetration of KST peptide and conversely KST peptide prevented Hsp70 transport in a dose-dependent manner.
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Affiliation(s)
- Elena Y. Komarova
- />Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St. Petersburg, Russia 194064
| | - Darya A. Meshalkina
- />Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St. Petersburg, Russia 194064
| | - Nikolay D. Aksenov
- />Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St. Petersburg, Russia 194064
| | - Ivan M. Pchelin
- />Kashkin Research Institute of Medical Mycology, North-Western State Medical University named after I.I. Mechnikov, 1/28, Santiago-de-Cuba Str., St. Petersburg, Russia 194291
| | - Elena Martynova
- />Albert Einstein College of Medicine, 1300 Morris Park Avenue, Ullmann 123, Bronx, NY 10461 USA
| | - Boris A. Margulis
- />Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St. Petersburg, Russia 194064
| | - Irina V. Guzhova
- />Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St. Petersburg, Russia 194064
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Avila LA, Aps LRMM, Sukthankar P, Ploscariu N, Gudlur S, Šimo L, Szoszkiewicz R, Park Y, Lee SY, Iwamoto T, Ferreira LCS, Tomich JM. Branched Amphiphilic Cationic Oligopeptides Form Peptiplexes with DNA: A Study of Their Biophysical Properties and Transfection Efficiency. Mol Pharm 2015; 12:706-15. [DOI: 10.1021/mp500524s] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- L. Adriana Avila
- Department of Biochemistry & Molecular Biophysics, Kansas State University, Manhattan, Kansas 66506-3902, United States
| | - Luana R. M. M. Aps
- Institute
of Biomedical Sciences, University of São Paulo, São Paulo, São Paulo 05508-900, Brazil
| | - Pinakin Sukthankar
- Department of Biochemistry & Molecular Biophysics, Kansas State University, Manhattan, Kansas 66506-3902, United States
| | - Nicoleta Ploscariu
- Department
of Physics, Kansas State University, Manhattan, Kansas 66506-2601, United States
| | - Sushanth Gudlur
- Department of Biochemistry & Molecular Biophysics, Kansas State University, Manhattan, Kansas 66506-3902, United States
| | - Ladislav Šimo
- Department
of Entomology, Kansas State University, Manhattan, Kansas 66506-4004, United States
| | - Robert Szoszkiewicz
- Department
of Physics, Kansas State University, Manhattan, Kansas 66506-2601, United States
| | - Yoonseong Park
- Department
of Entomology, Kansas State University, Manhattan, Kansas 66506-4004, United States
| | - Stella Y. Lee
- Division
of Biology, Kansas State University, Manhattan, Kansas 66506-3902, United States
| | - Takeo Iwamoto
- Division
of Biochemistry, Core Research Facilities, Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Luis C. S. Ferreira
- Institute
of Biomedical Sciences, University of São Paulo, São Paulo, São Paulo 05508-900, Brazil
| | - John M. Tomich
- Department of Biochemistry & Molecular Biophysics, Kansas State University, Manhattan, Kansas 66506-3902, United States
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Naik RJ, Sharma R, Nisakar D, Purohit G, Ganguli M. Exogenous chondroitin sulfate glycosaminoglycan associate with arginine-rich peptide-DNA complexes to alter their intracellular processing and gene delivery efficiency. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:1053-64. [PMID: 25637297 DOI: 10.1016/j.bbamem.2015.01.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Revised: 01/07/2015] [Accepted: 01/20/2015] [Indexed: 10/24/2022]
Abstract
Arginine-rich peptides have been used extensively as efficient cellular transporters. However, gene delivery with such peptides requires development of strategies to improve their efficiency. We had earlier demonstrated that addition of small amounts of exogenous glycosaminoglycans (GAGs) like heparan sulfate or chondroitin sulfate to different arginine-rich peptide-DNA complexes (polyplexes) led to an increase in their gene delivery efficiency. This was possibly due to the formation of a 'GAG coat' on the polyplex surface through electrostatic interactions which improved their extracellular stability and subsequent cellular entry. In this report, we have attempted to elucidate the differences in intracellular processing of the chondroitin sulfate (CS)-coated polyplexes in comparison to the native polyplexes by using a combination of endocytic inhibitors and co-localization with endosomal markers in various cell lines. We observed that both the native and CS-coated polyplexes are internalized by multiple endocytic pathways although in some cell lines, the coated polyplexes are taken up primarily by caveolae mediated endocytosis. In addition, the CS-coat improves the endosomal escape of the polyplexes as compared to the native polyplexes. Interestingly, during these intracellular events, exogenous CS is retained with the polyplexes until their accumulation near the nucleus. Thus we show for the first time that exogenous GAGs in small amounts improve intracellular routing and nuclear accumulation of arginine-based polyplexes. Therefore, addition of exogenous GAGs is a promising strategy to enhance the transfection efficiency of cationic arginine-rich peptides in multiple cell types.
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Affiliation(s)
- Rangeetha J Naik
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110020, India
| | - Rajpal Sharma
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110020, India
| | - Daniel Nisakar
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110020, India
| | - Gunjan Purohit
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110020, India
| | - Munia Ganguli
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110020, India.
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35
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Identification and characterization of a novel cell-penetrating peptide of 30Kc19 protein derived from Bombyx mori. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.05.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Reissmann S. Cell penetration: scope and limitations by the application of cell-penetrating peptides. J Pept Sci 2014; 20:760-84. [DOI: 10.1002/psc.2672] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 06/06/2014] [Accepted: 06/10/2014] [Indexed: 12/23/2022]
Affiliation(s)
- Siegmund Reissmann
- Friedrich Schiller University, Biological and Pharmaceutical Faculty; Institute of Biochemistry and Biophysics; Dornburger Strasse 25 07743 Jena Germany
- Jena Bioscience GmbH; Loebstedter Strasse 80 07749 Jena Germany
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37
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Sun Y, Chen L, Sun F, Tian X, Luo SZ. New amphiphilic N-phosphoryl oligopeptides designed for gene delivery. Int J Pharm 2014; 468:83-90. [DOI: 10.1016/j.ijpharm.2014.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 03/13/2014] [Accepted: 04/03/2014] [Indexed: 11/29/2022]
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Raad MD, Teunissen EA, Mastrobattista E. Peptide vectors for gene delivery: from single peptides to multifunctional peptide nanocarriers. Nanomedicine (Lond) 2014; 9:2217-32. [DOI: 10.2217/nnm.14.90] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The therapeutic use of nucleic acids relies on the availability of sophisticated delivery systems for targeted and intracellular delivery of these molecules. Such a gene delivery should possess essential characteristics to overcome several extracellular and intracellular barriers. Peptides offer an attractive platform for nonviral gene delivery, as several functional peptide classes exist capable of overcoming these barriers. However, none of these functional peptide classes contain all the essential characteristics required to overcome all of the barriers associated with successful gene delivery. Combining functional peptides into multifunctional peptide vectors will be pivotal for improving peptide-based gene delivery systems. By using combinatorial strategies and high-throughput screening, the identification of multifunctional peptide vectors will accelerate the optimization of peptide-based gene delivery systems.
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Affiliation(s)
- Markus de Raad
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, University of Utrecht, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Erik A Teunissen
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, University of Utrecht, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Enrico Mastrobattista
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, University of Utrecht, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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Zhang Y, Song J, Zhang W, Liang R, Ma Y, Zhang L, Wei X, Ni J, Wang R. Functional properties of a novel hybrid antimicrobial peptide NS: potent antitumor activity and efficient plasmid delivery. J Pept Sci 2014; 20:785-93. [DOI: 10.1002/psc.2667] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 05/23/2014] [Accepted: 05/28/2014] [Indexed: 01/08/2023]
Affiliation(s)
- Yun Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Jingjing Song
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
| | - Wei Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
| | - Ranran Liang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
| | - Yinyun Ma
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Li Zhang
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Xiaojin Wei
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Jingman Ni
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Rui Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
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40
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Efficient in vivo gene delivery using modified Tat peptide with cationic lipids. Biotechnol Lett 2014; 36:1447-52. [DOI: 10.1007/s10529-014-1497-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 02/10/2014] [Indexed: 10/25/2022]
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41
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Yamano S, Dai J, Hanatani S, Haku K, Yamanaka T, Ishioka M, Takayama T, Yuvienco C, Khapli S, Moursi AM, Montclare JK. Long-term efficient gene delivery using polyethylenimine with modified Tat peptide. Biomaterials 2014; 35:1705-15. [DOI: 10.1016/j.biomaterials.2013.11.012] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 11/02/2013] [Indexed: 10/26/2022]
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42
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Keller AA, Breitling R, Hemmerich P, Kappe K, Braun M, Wittig B, Schaefer B, Lorkowski S, Reissmann S. Transduction of Proteins intoLeishmania Tarentolaeby Formation of Non-Covalent Complexes With Cell-Penetrating Peptides. J Cell Biochem 2013; 115:243-52. [DOI: 10.1002/jcb.24654] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 08/14/2013] [Indexed: 01/08/2023]
Affiliation(s)
- Andrea-Anneliese Keller
- Friedrich Schiller University, Biological and Pharmaceutical Faculty; Institute of Nutrition and Abbe Centre of Photonics; Dornburger Str. 25 07743 Jena Germany
| | | | - Peter Hemmerich
- Leibniz Institute for Age Research - Fritz Lipmann Institute; Beutenbergstr. 11 07745 Jena Germany
| | - Katarina Kappe
- Jena Bioscience GmbH; Loebstedter Str. 80 07749 Jena Germany
| | - Maria Braun
- Friedrich Schiller University, Biological and Pharmaceutical Faculty; Institute of Nutrition and Abbe Centre of Photonics; Dornburger Str. 25 07743 Jena Germany
| | - Berith Wittig
- Friedrich Schiller University, Biological and Pharmaceutical Faculty; Institute of Nutrition and Abbe Centre of Photonics; Dornburger Str. 25 07743 Jena Germany
| | - Buerk Schaefer
- Jena Bioscience GmbH; Loebstedter Str. 80 07749 Jena Germany
| | - Stefan Lorkowski
- Friedrich Schiller University, Biological and Pharmaceutical Faculty; Institute of Nutrition and Abbe Centre of Photonics; Dornburger Str. 25 07743 Jena Germany
| | - Siegmund Reissmann
- Jena Bioscience GmbH; Loebstedter Str. 80 07749 Jena Germany
- Friedrich Schiller University, Biological and Pharmaceutical Faculty; Institute of Biochemistry and Biophysics; Dornburger Str. 25 07743 Jena Germany
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43
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Abstract
A number of new and innovative approaches for repairing damaged myocardium are currently undergoing investigation, with several encouraging results. In addition to the progression of stem cell-based approaches and gene therapy/silencing methods, evidence continues to emerge that protein therapeutics may be used to directly promote cardiac repair and even regeneration. However, proteins are often limited in their therapeutic potential by short local half-lives and insufficient bioavailability and bioactivity, and many academic laboratories studying cardiovascular diseases are more comfortable with molecular and cellular biology than with protein biochemistry. Protein engineering has been used broadly to overcome weaknesses traditionally associated with protein therapeutics and has the potential to specifically enhance the efficacy of molecules for cardiac repair. However, protein engineering as a strategy has not yet been used in the development of cardiovascular therapeutics to the degree that it has been used in other fields. In this review, we discuss the role of engineered proteins in cardiovascular therapies to date. Further, we address the promise of applying emerging protein engineering technologies to cardiovascular medicine and the barriers that must be overcome to enable the ultimate success of this approach.
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Affiliation(s)
- Steven M Jay
- From the Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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44
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Chen X, Sa'adedin F, Deme B, Rao P, Bradshaw J. Insertion of TAT peptide and perturbation of negatively charged model phospholipid bilayer revealed by neutron diffraction. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2013; 1828:1982-8. [DOI: 10.1016/j.bbamem.2013.04.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 04/22/2013] [Accepted: 04/23/2013] [Indexed: 01/07/2023]
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Salomone F, Cardarelli F, Signore G, Boccardi C, Beltram F. In vitro efficient transfection by CM₁₈-Tat₁₁ hybrid peptide: a new tool for gene-delivery applications. PLoS One 2013; 8:e70108. [PMID: 23922923 PMCID: PMC3726494 DOI: 10.1371/journal.pone.0070108] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 06/18/2013] [Indexed: 12/24/2022] Open
Abstract
Cell penetrating peptides (CPPs) are actively researched as non-viral molecular carriers for the controlled delivery of nucleic acids into cells, but widespread application is severely hampered by their trapping into endosomes. Here we show that the recently introduced endosomolytic CM18-Tat11 hybrid peptide (KWKLFKKIGAVLKVLTTG-YGRKKRRQRRR, residues 1-7 of Cecropin-A, 2-12 of Melittin, and 47-57 of HIV-1 Tat protein) can be exploited to obtain a self-assembled peptide-DNA vector which maintains the CM18-Tat11 ability to enter cells and destabilize vesicular membranes, concomitantly yielding high DNA transfection efficiency with no detectable cytotoxic effects. Different peptide-DNA stoichiometric ratios were tested to optimize vector size, charge, and stability characteristics. The transfection efficiency of selected candidates is quantitatively investigated by the luciferase-reporter assay. Vector intracellular trafficking is monitored in real time and in live cells by confocal microscopy. In particular, fluorescence resonant energy transfer (FRET) between suitably-labeled peptide and DNA modules was exploited to monitor complex disassembly during endocytosis, and this process is correlated to transfection timing and efficiency. We argue that these results can open the way to the rational design and application of CM18-Tat11–based systems for gene-delivery purposes.
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Affiliation(s)
- Fabrizio Salomone
- NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, Pisa, Italy
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Pisa, Italy
| | - Francesco Cardarelli
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Pisa, Italy
- * E-mail:
| | - Giovanni Signore
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Pisa, Italy
| | - Claudia Boccardi
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Pisa, Italy
| | - Fabio Beltram
- NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, Pisa, Italy
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Pisa, Italy
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46
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The use of low molecular weight protamine chemical chimera to enhance monomeric insulin intestinal absorption. Biomaterials 2013; 34:7733-43. [PMID: 23863452 DOI: 10.1016/j.biomaterials.2013.06.047] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 06/23/2013] [Indexed: 12/13/2022]
Abstract
Although oral delivery of insulin offers a number of unmatched advantages, it nevertheless is beset by the poor permeability of insulin molecules through the epithelial cell membranes of the intestinal mucosal layer. We previously reported the development of low molecular weight protamine (LMWP) as a non-toxic yet potent cell-penetrating peptide, of which via covalent linkage was capable of translocating protein cargos through the membranes of almost all cell types. It is therefore hypothesized that LMWP could be practically employed as a safe and effective tool to deliver insulin across the intestinal mucosal membrane, thereby augmenting its absorption through the GI tract. However, formulating 1:1 monomeric insulin/LMWP conjugate presents a tall order of challenge, as the acidic insulin and basic LMWP would automatically form tight aggregates through electrostatic interactions. In this paper, we developed an innovative conjugation strategy to solve this problem, by using succinimidyl-[(N-maleimidopropionamido)-polyethyleneglycol] ester (NHS-PEG-MAL) as an intermediate cross-linker during the coupling process. Both SDS-PAGE and MALDI-TOF mass spectroscopy confirmed the formation of a homogenous, monomeric (1:1 ratio) insulin/LMWP conjugate without encountering the conventional problem of substrate aggregation. Cell culture studies demonstrated that transport of the Insulin-PEG-LMWP conjugate across the intestinal mucosal monolayer was augmented by almost five-folds compared to native insulin. Furthermore, results from the in situ loop absorption tests in rats showed that systemic pharmacological bioavailability of insulin was significantly enhanced after its conjugation with LMWP. Overall, the presented chemical conjugation with LMWP could offer a reliable and safe means to improve the intestinal permeability of therapeutic peptides/proteins, shedding light of the possibility for their effective oral delivery.
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Nigatu AS, Vupputuri S, Flynn N, Neely BJ, Ramsey JD. Evaluation of Cell-Penetrating Peptide/Adenovirus Particles for Transduction of CAR-Negative Cells. J Pharm Sci 2013; 102:1981-1993. [DOI: 10.1002/jps.23556] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 03/11/2013] [Accepted: 03/26/2013] [Indexed: 11/06/2022]
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48
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Gopal V. Bioinspired peptides as versatile nucleic acid delivery platforms. J Control Release 2013; 167:323-32. [DOI: 10.1016/j.jconrel.2013.02.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 02/11/2013] [Accepted: 02/21/2013] [Indexed: 01/28/2023]
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Keller AA, Mussbach F, Breitling R, Hemmerich P, Schaefer B, Lorkowski S, Reissmann S. Relationships between Cargo, Cell Penetrating Peptides and Cell Type for Uptake of Non-Covalent Complexes into Live Cells. Pharmaceuticals (Basel) 2013; 6:184-203. [PMID: 24275947 PMCID: PMC3816687 DOI: 10.3390/ph6020184] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 01/29/2013] [Accepted: 01/30/2013] [Indexed: 11/16/2022] Open
Abstract
Modulating signaling pathways for research and therapy requires either suppression or expression of selected genes or internalization of proteins such as enzymes, antibodies, nucleotide binding proteins or substrates including nucleoside phosphates and enzyme inhibitors. Peptides, proteins and nucleotides are transported by fusing or conjugating them to cell penetrating peptides or by formation of non-covalent complexes. The latter is often preferred because of easy handling, uptake efficiency and auto-release of cargo into the live cell. In our studies complexes are formed with labeled or readily detectable cargoes for qualitative and quantitative estimation of their internalization. Properties and behavior of adhesion and suspension vertebrate cells as well as the protozoa Leishmania tarentolae are investigated with respect to proteolytic activity, uptake efficiency, intracellular localization and cytotoxicity. Our results show that peptide stability to membrane-bound, secreted or intracellular proteases varies between different CPPs and that the suitability of individual CPPs for a particular cargo in complex formation by non-covalent interactions requires detailed studies. Cells vary in their sensitivity to increasing concentrations of CPPs. Thus, most cells can be efficiently transduced with peptides, proteins and nucleotides with intracellular concentrations in the low micromole range. For each cargo, cell type and CPP the optimal conditions must be determined separately.
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Affiliation(s)
- Andrea-Anneliese Keller
- Biological and Pharmaceutical Faculty, Friedrich Schiller University, Dornburger Str. 25, 07743 Jena, Germany.
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50
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Yang S, Chen Y, Ahmadie R, Ho EA. Advancements in the field of intravaginal siRNA delivery. J Control Release 2013; 167:29-39. [PMID: 23298612 DOI: 10.1016/j.jconrel.2012.12.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 12/14/2012] [Accepted: 12/17/2012] [Indexed: 12/17/2022]
Abstract
The vaginal tract is a suitable site for the administration of both local and systemic acting drugs. There are numerous vaginal products on the market such as those approved for contraception, treatment of yeast infection, hormonal replacement therapy, and feminine hygiene. Despite the potential in drug delivery, the vagina is a complex and dynamic organ that requires greater understanding. The recent discovery that injections of double stranded RNA (dsRNA) in Caenorhabditis elegans (C. elegans) results in potent gene specific silencing, was a major scientific revolution. This phenomenon known as RNA interference (RNAi), is believed to protect host genome against invasion by mobile genetic elements such as transposons and viruses. Gene silencing or RNAi has opened new potential opportunities to study the function of a gene in an organism. Furthermore, its therapeutic potential is being investigated in the field of sexually transmitted infections such as human immunodeficiency virus (HIV) and other diseases such as age-related macular degeneration (AMD), diabetes, hypercholesterolemia, respiratory disease, and cancer. This review will focus on the therapeutic potential of siRNA for the treatment and/or prevention of infectious diseases such as HIV, HPV, and HSV within the vaginal tract. Specifically, formulation design parameters to improve siRNA stability and therapeutic efficacy in the vaginal tract will be discussed along with challenges, advancements, and future directions of the field.
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Affiliation(s)
- Sidi Yang
- Faculty of Pharmacy, University of Manitoba, 750 McDermot Ave, Winnipeg, Manitoba, Canada
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