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Sinani G, Durgun ME, Cevher E, Özsoy Y. Polymeric-Micelle-Based Delivery Systems for Nucleic Acids. Pharmaceutics 2023; 15:2021. [PMID: 37631235 PMCID: PMC10457940 DOI: 10.3390/pharmaceutics15082021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 07/11/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
Nucleic acids can modulate gene expression specifically. They are increasingly being utilized and show huge potential for the prevention or treatment of various diseases. However, the clinical translation of nucleic acids faces many challenges due to their rapid clearance after administration, low stability in physiological fluids and limited cellular uptake, which is associated with an inability to reach the intracellular target site and poor efficacy. For many years, tremendous efforts have been made to design appropriate delivery systems that enable the safe and effective delivery of nucleic acids at the target site to achieve high therapeutic outcomes. Among the different delivery platforms investigated, polymeric micelles have emerged as suitable delivery vehicles due to the versatility of their structures and the possibility to tailor their composition for overcoming extracellular and intracellular barriers, thus enhancing therapeutic efficacy. Many strategies, such as the addition of stimuli-sensitive groups or specific ligands, can be used to facilitate the delivery of various nucleic acids and improve targeting and accumulation at the site of action while protecting nucleic acids from degradation and promoting their cellular uptake. Furthermore, polymeric micelles can be used to deliver both chemotherapeutic drugs and nucleic acid therapeutics simultaneously to achieve synergistic combination treatment. This review focuses on the design approaches and current developments in polymeric micelles for the delivery of nucleic acids. The different preparation methods and characteristic features of polymeric micelles are covered. The current state of the art of polymeric micelles as carriers for nucleic acids is discussed while highlighting the delivery challenges of nucleic acids and how to overcome them and how to improve the safety and efficacy of nucleic acids after local or systemic administration.
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Affiliation(s)
- Genada Sinani
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Altinbas University, 34147 Istanbul, Türkiye;
| | - Meltem Ezgi Durgun
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, 34126 Istanbul, Türkiye; (M.E.D.); (E.C.)
| | - Erdal Cevher
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, 34126 Istanbul, Türkiye; (M.E.D.); (E.C.)
| | - Yıldız Özsoy
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, 34126 Istanbul, Türkiye; (M.E.D.); (E.C.)
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2
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Sulfonated Amphiphilic Poly(α)glutamate Amine—A Potential siRNA Nanocarrier for the Treatment of Both Chemo-Sensitive and Chemo-Resistant Glioblastoma Tumors. Pharmaceutics 2021; 13:pharmaceutics13122199. [PMID: 34959480 PMCID: PMC8705840 DOI: 10.3390/pharmaceutics13122199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/25/2022] Open
Abstract
Development of chemo-resistance is a major challenge in glioblastoma (GB) treatment. This phenomenon is often driven by increased activation of genes associated with DNA repair, such as the alkyl-removing enzyme O6-methylguanine-DNA methyltransferase (MGMT) in combination with overexpression of canonical genes related to cell proliferation and tumor progression, such as Polo-like kinase 1 (Plk1). Hereby, we attempt to sensitize resistant GB cells using our established amphiphilic poly(α)glutamate (APA): small interfering RNA (siRNA) polyplexes, targeting Plk1. Furthermore, we improved brain-targeting by decorating our nanocarrier with sulfonate groups. Our sulfonated nanocarrier showed superior selectivity towards P-selectin (SELP), a transmembrane glycoprotein overexpressed in GB and angiogenic brain endothelial cells. Self-assembled polyplexes of sulfonated APA and siPlk1 internalized into GB cells and into our unique 3-dimensional (3D) GB spheroids inducing specific gene silencing. Moreover, our RNAi nanotherapy efficiently reduced the cell viability of both chemo-sensitive and chemo-resistant GB cells. Our developed sulfonated amphiphilic poly(α)glutamate nanocarrier has the potential to target siRNA to GB brain tumors. Our findings may strengthen the therapeutic applications of siRNA for chemo-resistant GB tumors, or as a combination therapy for chemo-sensitive GB tumors.
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Xie L, Liu R, Chen X, He M, Zhang Y, Chen S. Micelles Based on Lysine, Histidine, or Arginine: Designing Structures for Enhanced Drug Delivery. Front Bioeng Biotechnol 2021; 9:744657. [PMID: 34646819 PMCID: PMC8503256 DOI: 10.3389/fbioe.2021.744657] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 08/30/2021] [Indexed: 01/10/2023] Open
Abstract
Natural amino acids and their derivatives are excellent building blocks of polymers for various biomedical applications owing to the non-toxicity, biocompatibility, and ease of multifunctionalization. In the present review, we summarized the common approaches to designing and constructing functional polymeric micelles based on basic amino acids including lysine, histidine, and arginine and highlighted their applications as drug carriers for cancer therapy. Different polypeptide architectures including linear polypeptides and dendrimers were developed for efficient drug loading and delivery. Besides, polylysine- and polyhistidine-based micelles could enable pH-responsive drug release, and polyarginine can realize enhanced membrane penetration and gas therapy by generating metabolites of nitric oxide (NO). It is worth mentioning that according to the structural or functional characteristics of basic amino acids and their derivatives, key points for designing functional micelles with excellent drug delivery efficiency are importantly elaborated in order to pave the way for exploring micelles based on basic amino acids.
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Affiliation(s)
- Li Xie
- School of Medicine and Nursing, Chengdu University, Chengdu, China
| | - Rong Liu
- School of Medicine and Nursing, Chengdu University, Chengdu, China
| | - Xin Chen
- School of Medicine and Nursing, Chengdu University, Chengdu, China
| | - Mei He
- School of Medicine and Nursing, Chengdu University, Chengdu, China
| | - Yi Zhang
- School of Medicine and Nursing, Chengdu University, Chengdu, China
| | - Shuyi Chen
- School of Medicine and Nursing, Chengdu University, Chengdu, China
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Inflammatory Activation of Astrocytes Facilitates Melanoma Brain Tropism via the CXCL10-CXCR3 Signaling Axis. Cell Rep 2020; 28:1785-1798.e6. [PMID: 31412247 DOI: 10.1016/j.celrep.2019.07.033] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 06/20/2019] [Accepted: 07/11/2019] [Indexed: 12/16/2022] Open
Abstract
Melanoma is the deadliest skin cancer due to its high rate of metastasis, frequently to the brain. Brain metastases are incurable; therefore, understanding melanoma brain metastasis is of great clinical importance. We used a mouse model of spontaneous melanoma brain metastasis to study the interactions of melanomas with the brain microenvironment. We find that CXCL10 is upregulated in metastasis-associated astrocytes in mice and humans and is functionally important for the chemoattraction of melanoma cells. Moreover, CXCR3, the receptor for CXCL10, is upregulated in brain-tropic melanoma cells. Targeting melanoma expression of CXCR3 by nanoparticle-mediated siRNA delivery or by shRNA transduction inhibits melanoma cell migration and attenuates brain metastasis in vivo. These findings suggest that the instigation of pro-inflammatory signaling in astrocytes is hijacked by brain-metastasizing tumor cells to promote their metastatic capacity and that the CXCL10-CXCR3 axis may be a potential therapeutic target for the prevention of melanoma brain metastasis.
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Conejos-Sánchez I, Gallon E, Niño-Pariente A, Smith JA, De la Fuente AG, Di Canio L, Pluchino S, Franklin RJM, Vicent MJ. Polyornithine-based polyplexes to boost effective gene silencing in CNS disorders. NANOSCALE 2020; 12:6285-6299. [PMID: 31840717 DOI: 10.1039/c9nr06187h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Gene silencing therapies have successfully suppressed the translation of target proteins, a strategy that holds great promise for the treatment of central nervous system (CNS) disorders. Advances in the current knowledge on multimolecular delivery vehicles are concentrated on overcoming the difficulties in delivery of small interfering (si)RNA to target tissues, which include anatomical accessibility, slow diffusion, safety concerns, and the requirement for specific cell uptake within the unique environment of the CNS. The present work addressed these challenges through the implementation of polyornithine derivatives in the construction of polyplexes used as non-viral siRNA delivery vectors. Physicochemical and biological characterization revealed biodegradability and biocompatibility of our polyornithine-based system and the ability to silence gene expression in primary oligodendrocyte progenitor cells (OPCs) effectively. In summary, the well-defined properties and neurological compatibility of this polypeptide-based platform highlight its potential utility in the treatment of CNS disorders.
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Affiliation(s)
- I Conejos-Sánchez
- Centro de Investigación Príncipe Felipe. Polymer Therapeutics Laboratory, C/Eduardo Primo Yúfera, 3, 46012 Valencia, Spain.
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Malfanti A, Mastrotto F, Han Y, Král P, Balasso A, Scomparin A, Pozzi S, Satchi-Fainaro R, Salmaso S, Caliceti P. Novel Oligo-Guanidyl-PEG Carrier Forming Rod-Shaped Polyplexes. Mol Pharm 2019; 16:1678-1693. [PMID: 30860853 DOI: 10.1021/acs.molpharmaceut.9b00014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel unconventional supramolecular oligo-cationic structure (Agm6-M-PEG-OCH3) has been synthesized to yield high efficiency therapeutic oligonucleotide (ON) delivery. Agm6-M-PEG-OCH3 was obtained by a multistep protocol that included the conjugation of agmatine (Agm) moieties to maltotriose (M), which was further derivatized with one poly(ethylene glycol) (PEG) chain. Gel electrophoresis analysis showed that the 19 base pairs dsDNA model ON completely associates with Agm6-M-PEG-OCH3 at 3 N/P molar ratio, which is in agreement with the in silico molecular predictions. Isothermal titration calorimetry (ITC) analyses showed that the Agm6-M-PEG-OCH3/ON association occurs through a combination of mechanisms depending on the N/P ratios resulting in different nanostructures. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) revealed that the Agm6-M-PEG-OCH3/ON polyplexes have rod-shape structure with a mean diameter of 50-75 nm and aspect ratio depending on the N/P ratio. The polyplexes were stable over time in buffer, while a slight size increase was observed in the presence of serum proteins. Cell culture studies showed that neither Agm6-M-PEG-OCH3 nor polyplexes displayed cytotoxic effects. Cellular uptake depended on the cell line and polyplex composition: cellular internalization was higher in the case of MCF-7 and KB cells compared to MC3T3-E1 cells and polyplexes with smaller aspect ratio were taken-up by cells more efficiently than polyplexes with higher aspect ratio. Finally, preliminary studies showed that our novel carrier efficiently delivered ONs into cells providing gene silencing.
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Affiliation(s)
- Alessio Malfanti
- Department of Pharmaceutical and Pharmacological Sciences , University of Padova , Via F. Marzolo 5 35131 Padova , Italy
| | - Francesca Mastrotto
- Department of Pharmaceutical and Pharmacological Sciences , University of Padova , Via F. Marzolo 5 35131 Padova , Italy
| | - Yanxiao Han
- Department of Chemistry and Department of Physics , University of Illinois at Chicago , Chicago , Illinois 60607 , United States
| | - Petr Král
- Department of Chemistry and Department of Physics , University of Illinois at Chicago , Chicago , Illinois 60607 , United States.,Department of Biopharmaceutical Sciences , University of Illinois at Chicago , Chicago , Illinois 60612 , United States
| | - Anna Balasso
- Department of Pharmaceutical and Pharmacological Sciences , University of Padova , Via F. Marzolo 5 35131 Padova , Italy
| | - Anna Scomparin
- Department of Physiology and Pharmacology, Sackler School of Medicine , Tel Aviv University 69978 Tel Aviv , Israel.,Department of Drug Science and Technology , University of Turin , Via P. Giuria 9 , 10125 Turin , Italy
| | - Sabina Pozzi
- Department of Physiology and Pharmacology, Sackler School of Medicine , Tel Aviv University 69978 Tel Aviv , Israel
| | - Ronit Satchi-Fainaro
- Department of Physiology and Pharmacology, Sackler School of Medicine , Tel Aviv University 69978 Tel Aviv , Israel
| | - Stefano Salmaso
- Department of Pharmaceutical and Pharmacological Sciences , University of Padova , Via F. Marzolo 5 35131 Padova , Italy
| | - Paolo Caliceti
- Department of Pharmaceutical and Pharmacological Sciences , University of Padova , Via F. Marzolo 5 35131 Padova , Italy
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Pujals S, Feiner-Gracia N, Delcanale P, Voets I, Albertazzi L. Super-resolution microscopy as a powerful tool to study complex synthetic materials. Nat Rev Chem 2019. [DOI: 10.1038/s41570-018-0070-2] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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8
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De Los Reyes-Berbel E, Salto-Gonzalez R, Ortega-Muñoz M, Reche-Perez FJ, Jodar-Reyes AB, Hernandez-Mateo F, Giron-Gonzalez MD, Santoyo-Gonzalez F. PEI-NIR Heptamethine Cyanine Nanotheranostics for Tumor Targeted Gene Delivery. Bioconjug Chem 2018; 29:2561-2575. [PMID: 29953208 DOI: 10.1021/acs.bioconjchem.8b00262] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Polymer-based nanotheranostics are appealing tools for cancer treatment and diagnosis in the fast-growing field of nanomedicine. A straightforward preparation of novel engineered PEI-based nanotheranostics incorporating NIR fluorescence heptamethine cyanine dyes (NIRF-HC) to enable them with tumor targeted gene delivery capabilities is reported. Branched PEI-2 kDa (b2kPEI) is conjugated with IR-780 and IR-783 dyes by both covalent and noncovalent simple preparative methodologies varying their stoichiometry ratio. The as-prepared set of PEI-NIR-HC nanocarriers are assayed in vitro and in vivo to evaluate their gene transfection efficiency, cellular uptake, cytotoxicity, internalization and trafficking mechanisms, subcellular distribution, and tumor specific gene delivery. The results show the validity of the approach particularly for one of the covalent IR783-b2kPEI conjugates that exhibit an enhanced tumor uptake, probably mediated by organic anion transporting peptides, and favorable intracellular transport to the nucleus. The compound behaves as an efficient nanotheranostic transfection agent in NSG mice bearing melanoma G361 xenographs with concomitant imaging signal and gene concentration in the targeted tumor. By this way, advanced nanotheranostics with multifunctional capabilities (gene delivery, tumor-specific targeting, and NIR fluorescence imaging) are generated in which the NIRF-HC dye component accounts for simultaneous targeting and diagnostics, avoiding additional incorporation of additional tumor-specific targeting bioligands.
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Affiliation(s)
- Eduardo De Los Reyes-Berbel
- Department of Organic Chemistry, Biotechnology Institute, Faculty of Sciences , University of Granada , 18071 Granada , Spain
| | - Rafael Salto-Gonzalez
- Department of Biochemistry and Molecular Biology II, School of Pharmacy , University of Granada , 18071 Granada , Spain
| | - Mariano Ortega-Muñoz
- Department of Organic Chemistry, Biotechnology Institute, Faculty of Sciences , University of Granada , 18071 Granada , Spain
| | - Francisco Jose Reche-Perez
- Department of Biochemistry and Molecular Biology II, School of Pharmacy , University of Granada , 18071 Granada , Spain
| | - Ana Belen Jodar-Reyes
- Biocolloid and Fluid Physics Group, Department of Applied Physics, Faculty of Sciences , University of Granada , 18071 Granada , Spain
| | - Fernando Hernandez-Mateo
- Department of Organic Chemistry, Biotechnology Institute, Faculty of Sciences , University of Granada , 18071 Granada , Spain
| | - Maria Dolores Giron-Gonzalez
- Department of Biochemistry and Molecular Biology II, School of Pharmacy , University of Granada , 18071 Granada , Spain
| | - Francisco Santoyo-Gonzalez
- Department of Organic Chemistry, Biotechnology Institute, Faculty of Sciences , University of Granada , 18071 Granada , Spain
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Alshamsan A. STAT3-siRNA induced B16.F10 melanoma cell death: more association with VEGF downregulation than p-STAT3 knockdown. Saudi Pharm J 2018; 26:1083-1088. [PMID: 30532628 PMCID: PMC6260487 DOI: 10.1016/j.jsps.2018.05.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 05/29/2018] [Indexed: 12/14/2022] Open
Abstract
STAT3 knockdown by small interfering RNA (siRNA) has been described to inhibit carcinogenic growth in various types of tumors. Earlier we have reported delivery of siRNA by oleic acid- and stearic acid-modified-polyethylenimine and enhancement of silencing of STAT3 by small interfering RNA (siRNA) in B16.F10 melanoma cell lines and consequent tumor suppression. Present investigation mainly focused on the downstream events involved in B16.F10 melanoma cell death and consequent tumor suppression following knockdown of p-STAT3 by siRNA. Lipid-substituted polyethylenimine (PEI)-p-STAT3-siRNA were prepared and characterized by measuring its N/P ratio, zeta potential, size, association and dissociation with siRNA. B16.F10 melanoma cells were treated with six different concentrations of PEI-p-STAT3-siRNA (200, 100, 50, 25, 12.5 and 6.25 nM). Downregulation of p-STAT3 and VEGF were studied using western blot and ELISA in association with the melanoma cell death. PEI-p-STAT3-siRNA hydrodynamic diameter ranged from 110 to 270 nm. PEI assisted p-STAT3-siRNA delivery exhibited increased uptake by B16.F10, when analyzed by fluorescent and confocal microscopy along with flowcytometry. It induced concentration-dependent knockdown of the p-STAT3 that also downregulated VEGF expression in similar fashion and induced B16.F10 cell death. Higher concentrations of p-STAT3-siRNA appear to significantly downregulate the VEGF expression via p-STAT3 knockdown. Decreasing survival of B16.F10 cells with the increasing concentration of p-STAT3-siRNA significantly correlated with VEGF downregulation, not with p-STAT3 expression. Data suggest that VEGF downregulation following knockdown of p-STAT3 may be a key event in survival reduction in B16.F10 melanoma cells and.
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Affiliation(s)
- Aws Alshamsan
- Nanomedicine Research Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Saudi Arabia.,King Abdullah Institute for Nanotechnology, King Saud University, Saudi Arabia
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10
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Krivitsky A, Krivitsky V, Polyak D, Scomparin A, Eliyahu S, Gibori H, Yeini E, Pisarevsky E, Blau R, Satchi-Fainaro R. Molecular Weight-Dependent Activity of Aminated Poly(α)glutamates as siRNA Nanocarriers. Polymers (Basel) 2018; 10:E548. [PMID: 30966582 PMCID: PMC6415365 DOI: 10.3390/polym10050548] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/14/2018] [Accepted: 05/15/2018] [Indexed: 11/25/2022] Open
Abstract
RNA interference (RNAi) can contribute immensely to the area of personalized medicine by its ability to target any gene of interest. Nevertheless, its clinical use is limited by lack of efficient delivery systems. Polymer therapeutics can address many of the challenges encountered by the systemic delivery of RNAi, but suffer from inherent drawbacks such as polydispersity and batch to batch heterogeneity. These characteristics may have far-reaching consequences when dealing with therapeutic applications, as both the activity and the toxicity may be dependent on the length of the polymer chain. To investigate the consequences of polymers' heterogeneity, we have synthesized two batches of aminated poly(α)glutamate polymers (PGAamine), differing in their degree of polymerization, but not in the monomer units or their conjugation. Isothermal titration calorimetry study was conducted to define the binding affinity of these polymers with siRNA. Molecular dynamics simulation revealed that Short PGAamine:siRNA polyplexes exposed a higher amount of amine moieties to the surroundings compared to Long PGAamine. This resulted in a higher zeta potential, leading to faster degradation and diminished gene silencing. Altogether, our study highlights the importance of an adequate physico-chemical characterization to elucidate the structure⁻function-activity relationship, for further development of tailor-designed RNAi delivery vehicles.
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Affiliation(s)
- Adva Krivitsky
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Vadim Krivitsky
- School of Chemistry, the Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University, Tel Aviv 69978, Israel.
| | - Dina Polyak
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel.
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
| | - Anna Scomparin
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Shay Eliyahu
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Hadas Gibori
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Eilam Yeini
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Evgeni Pisarevsky
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Rachel Blau
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Ronit Satchi-Fainaro
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel.
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Gibori H, Eliyahu S, Krivitsky A, Ben-Shushan D, Epshtein Y, Tiram G, Blau R, Ofek P, Lee JS, Ruppin E, Landsman L, Barshack I, Golan T, Merquiol E, Blum G, Satchi-Fainaro R. Amphiphilic nanocarrier-induced modulation of PLK1 and miR-34a leads to improved therapeutic response in pancreatic cancer. Nat Commun 2018; 9:16. [PMID: 29295989 PMCID: PMC5750234 DOI: 10.1038/s41467-017-02283-9] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 11/17/2017] [Indexed: 12/19/2022] Open
Abstract
The heterogeneity of pancreatic ductal adenocarcinoma (PDAC) suggests that successful treatment might rely on simultaneous targeting of multiple genes, which can be achieved by RNA interference-based therapeutic strategies. Here we show a potent combination of microRNA and siRNA delivered by an efficient nanocarrier to PDAC tumors. Using proteomic-microRNA profiles and survival data of PDAC patients from TCGA, we found a novel signature for prolonged survival. Accordingly, we used a microRNA-mimic to increase miR-34a together with siRNA to silence PLK1 oncogene. For in vivo dual-targeting of this combination, we developed a biodegradable amphiphilic polyglutamate amine polymeric nanocarrier (APA). APA-miRNA-siRNA polyplexes systemically administered to orthotopically inoculated PDAC-bearing mice showed no toxicity and accumulated at the tumor, resulting in an enhanced antitumor effect due to inhibition of MYC oncogene, a common target of both miR-34a and PLK1. Taken together, our findings warrant this unique combined polyplex's potential as a novel nanotherapeutic for PDAC.
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Affiliation(s)
- Hadas Gibori
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Shay Eliyahu
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Adva Krivitsky
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Dikla Ben-Shushan
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Yana Epshtein
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Galia Tiram
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Rachel Blau
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Paula Ofek
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Joo Sang Lee
- Department of Computer Science and Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD, 20742, USA
| | - Eytan Ruppin
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
- Department of Computer Science and Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD, 20742, USA
- Blavatnik School of Computer Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Limor Landsman
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Iris Barshack
- Department of Pathology, Sheba Medical Center, Tel Hashomer, 52621, Israel
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Talia Golan
- Department of Pathology, Sheba Medical Center, Tel Hashomer, 52621, Israel
| | - Emmanuelle Merquiol
- The Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Ein Kerem Campus, The Hebrew University, Jerusalem, Israel
| | - Galia Blum
- The Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Ein Kerem Campus, The Hebrew University, Jerusalem, Israel
| | - Ronit Satchi-Fainaro
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel.
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