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Akhtar S, El-Hashim AZ, Chandrasekhar B, Attur S, Benter IF. Naked Polyamidoamine Polymers Intrinsically Inhibit Angiotensin II-Mediated EGFR and ErbB2 Transactivation in a Dendrimer Generation- and Surface Chemistry-Dependent Manner. Mol Pharm 2016; 13:1575-86. [DOI: 10.1021/acs.molpharmaceut.6b00045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
| | | | | | | | - Ibrahim F. Benter
- Faculty
of Medicine, Eastern Mediterranean University, Famagusta, North Cyprus
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Akhtar S, Al-Zaid B, El-Hashim AZ, Chandrasekhar B, Attur S, Benter IF. Impact of PAMAM delivery systems on signal transduction pathways in vivo: Modulation of ERK1/2 and p38 MAP kinase signaling in the normal and diabetic kidney. Int J Pharm 2016; 514:353-363. [PMID: 27032566 DOI: 10.1016/j.ijpharm.2016.03.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 03/20/2016] [Accepted: 03/22/2016] [Indexed: 11/16/2022]
Abstract
The in vivo impact of two generation 6 cationic polyamidoamine (PAMAM) dendrimers on cellular signaling via extracellular-regulated kinase 1/2 (ERK1/2) and p38 mitogen-activated protein kinase (p38 MAPK), as well as their relationship to epidermal growth factor receptor (EGFR), were studied in the normal and/or diabetic rat kidney. A single 10mg/kg/i.p administration of Polyfect (PF; with an intact branching architecture) or Superfect (SF; with a fragmented branching architecture) modulated renal ERK1/2 and p38 MAPK phosphorylation in a dendrimer-specific and animal model-dependent manner. AG1478 treatment (a selective EGFR inhibitor) confirmed that renal ERK1/2 and p38 MAPK signaling was downstream of EGFR. Surprisingly, both PAMAMs induced hyperphosphorylation of ERK1/2 and p38 MAPK (at 1 or 5mg/kg) despite inhibiting EGFR phosphorylation in the diabetic kidney. PAMAMs did not alter renal morphology but their effects on p38 MAPK and EGFR phosphorylation were reversed by ex vivo treatment of kidneys with the anti-oxidant, Tempol. Thus, PAMAMs can intrinsically modulate signaling of mitogen-activated protein kinases (MAPKs) depending on the type of dendrimer (fragmented vs intact branching architecture) and animal model (normal vs diabetic) used and likely occurs via an EGFR-independent and oxidative-stress dependent mechanism. These findings might have important toxicological implications for PAMAM-based delivery systems.
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Affiliation(s)
- Saghir Akhtar
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait.
| | - Bashayer Al-Zaid
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
| | - Ahmed Z El-Hashim
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Kuwait University, Safat 13110, Kuwait
| | - Bindu Chandrasekhar
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
| | - Sreeja Attur
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
| | - Ibrahim F Benter
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
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53
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Li J, Liu J, Li S, Hao Y, Chen L, Zhang X. Antibody h-R3-dendrimer mediated siRNA has excellent endosomal escape and tumor targeted delivery ability, and represents efficient siPLK1 silencing and inhibition of cell proliferation, migration and invasion. Oncotarget 2016; 7:13782-96. [PMID: 26883109 PMCID: PMC4924678 DOI: 10.18632/oncotarget.7368] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 02/05/2016] [Indexed: 11/25/2022] Open
Abstract
The major obstacle to developing siRNA delivery is their extracellular and intracellular barriers. Herein, a humanized anti-EGFR monoclonal antibody h-R3 was developed to modify the self-assembled binary complexes (dendriplexes) of PAMAM and siRNA via electrostatic interactions, and two common ligands HSA and EGF were used as a control. Compared to dendriplexes, h-R3/EGF/HSA-dendriplexes showed increased particle size, decreased zeta potentials and lower cytotoxicity. Moreover, h-R3-dendriplexes presented greater cellular uptake and excellent endosomal escape ability in HepG2 cells. Ex vivo fluorescence imaging revealed that h-R3-dendriplexes showed higher targeted delivery and gene expression in the tumors than dendriplexes, HSA-dendriplexes and EGF-dendriplexes, which was in agreement with confocal results of cryosections. Furthermore, h-R3-dendriplexes for siPLK1 delivery indicated efficient gene silencing, potentiated cell growth inhibition and cell apoptosis, and suppressed cellular migration/invasion. These results indicate that h-R3-dendriplexes represent a great potential to be used as efficient targeted siRNA delivery carriers.
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Affiliation(s)
- Jun Li
- School of Medicine, Tsinghua University, Beijing 100084, China
| | - Jing Liu
- Collaborative Innovation Center for Biotherapy, Tsinghua University, Beijing 100084, China
| | - Shengnan Li
- Department of Gynaecology and Obstetrics, PLA Navy General Hospital, Beijing 100037, China
| | - Yanli Hao
- School of Medicine, Tsinghua University, Beijing 100084, China
| | - Lei Chen
- Department of Gynaecology and Obstetrics, PLA Navy General Hospital, Beijing 100037, China
| | - Xiaoning Zhang
- School of Medicine, Tsinghua University, Beijing 100084, China
- Collaborative Innovation Center for Biotherapy, Tsinghua University, Beijing 100084, China
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Ramezanpour M, Leung SSW, Delgado-Magnero KH, Bashe BYM, Thewalt J, Tieleman DP. Computational and experimental approaches for investigating nanoparticle-based drug delivery systems. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:1688-709. [PMID: 26930298 DOI: 10.1016/j.bbamem.2016.02.028] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 02/20/2016] [Accepted: 02/23/2016] [Indexed: 12/21/2022]
Abstract
Most therapeutic agents suffer from poor solubility, rapid clearance from the blood stream, a lack of targeting, and often poor translocation ability across cell membranes. Drug/gene delivery systems (DDSs) are capable of overcoming some of these barriers to enhance delivery of drugs to their right place of action, e.g. inside cancer cells. In this review, we focus on nanoparticles as DDSs. Complementary experimental and computational studies have enhanced our understanding of the mechanism of action of nanocarriers and their underlying interactions with drugs, biomembranes and other biological molecules. We review key biophysical aspects of DDSs and discuss how computer modeling can assist in rational design of DDSs with improved and optimized properties. We summarize commonly used experimental techniques for the study of DDSs. Then we review computational studies for several major categories of nanocarriers, including dendrimers and dendrons, polymer-, peptide-, nucleic acid-, lipid-, and carbon-based DDSs, and gold nanoparticles. This article is part of a Special Issue entitled: Membrane Proteins edited by J.C. Gumbart and Sergei Noskov.
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Affiliation(s)
- M Ramezanpour
- Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - S S W Leung
- Department of Physics, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - K H Delgado-Magnero
- Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - B Y M Bashe
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - J Thewalt
- Department of Physics, Simon Fraser University, Burnaby, BC V5A 1S6, Canada; Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - D P Tieleman
- Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
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55
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Zhao Y, Zeng Q, Wu F, Li J, Pan Z, Shen P, Yang L, Xu T, Cai L, Guo L. Novel naproxen-peptide-conjugated amphiphilic dendrimer self-assembly micelles for targeting drug delivery to osteosarcoma cells. RSC Adv 2016. [DOI: 10.1039/c6ra15022e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The aim of the current study was to synthesize and prepare novel self-assembly micelles loaded with curcumin (Cur) based on naproxen (Nap)-conjugated amphiphilic peptide dendrimers.
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56
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Li Q, Gu W, Liu K, Xiao N, Zhang J, Shao L, Li L, Zhang S, Li P. RGD conjugated, Cy5.5 labeled polyamidoamine dendrimers for targeted near-infrared fluorescence imaging of esophageal squamous cell carcinoma. RSC Adv 2016. [DOI: 10.1039/c6ra12927g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The early detection of esophageal squamous cell carcinoma (ESCC), one of the most common human neoplasms, is of great importance in improving prognosis.
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Affiliation(s)
- Qi Li
- National Clinical Research Center for Digestive Diseases
- Beijing Digestive Disease Center
- Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases
- Department of Gastroenterology
- Beijing Friendship Hospital
| | - Wei Gu
- School of Chemical Biology and Pharmaceutical Sciences
- Capital Medical University
- People's Republic of China
| | - Kang Liu
- School of Chemical Biology and Pharmaceutical Sciences
- Capital Medical University
- People's Republic of China
| | - Ning Xiao
- Department of Pharmacy
- Beijing Tongren Hospital
- Capital Medical University
- People's Republic of China
| | - Juan Zhang
- School of Chemical Biology and Pharmaceutical Sciences
- Capital Medical University
- People's Republic of China
| | - Linlin Shao
- National Clinical Research Center for Digestive Diseases
- Beijing Digestive Disease Center
- Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases
- Department of Gastroenterology
- Beijing Friendship Hospital
| | - Lei Li
- Department of Gastroenterology
- Affiliated Hospital of Weifang Medical University
- People's Republic of China
| | - Shutian Zhang
- National Clinical Research Center for Digestive Diseases
- Beijing Digestive Disease Center
- Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases
- Department of Gastroenterology
- Beijing Friendship Hospital
| | - Peng Li
- National Clinical Research Center for Digestive Diseases
- Beijing Digestive Disease Center
- Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases
- Department of Gastroenterology
- Beijing Friendship Hospital
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57
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Stem Cell Tracking with Nanoparticles for Regenerative Medicine Purposes: An Overview. Stem Cells Int 2015; 2016:7920358. [PMID: 26839568 PMCID: PMC4709786 DOI: 10.1155/2016/7920358] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 10/07/2015] [Accepted: 10/11/2015] [Indexed: 02/07/2023] Open
Abstract
Accurate and noninvasive stem cell tracking is one of the most important needs in regenerative medicine to determine both stem cell destinations and final differentiation fates, thus allowing a more detailed picture of the mechanisms involved in these therapies.
Given the great importance and advances in the field of nanotechnology for stem cell imaging, currently, several nanoparticles have become standardized products and have been undergoing fast commercialization. This review has been intended to summarize the current use of different engineered nanoparticles in stem cell tracking for regenerative medicine purposes, in particular by detailing their main features and exploring their biosafety aspects, the first step for clinical application. Moreover, this review has summarized the advantages and applications of stem cell tracking with nanoparticles in experimental and preclinical studies and investigated present limitations for their employment in the clinical setting.
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58
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Oki AT, Seidman D, Lancina MG, Mishra MK, Kannan RM, Yang H, Carlyon JA. Dendrimer-enabled transformation of Anaplasma phagocytophilum. Microbes Infect 2015; 17:817-22. [PMID: 26369714 PMCID: PMC4666749 DOI: 10.1016/j.micinf.2015.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/02/2015] [Accepted: 09/02/2015] [Indexed: 12/22/2022]
Abstract
Anaplasma phagocytophilum is an obligate intracellular bacterium that causes the emerging infection, granulocytic anaplasmosis. While electroporation can transform A. phagocytophilum isolated from host cells, no method has been developed to transform it while growing inside the ApV (A. phagocytophilum-occupied vacuole). Polyamidoamine (PAMAM) dendrimers, well-defined tree-branched macromolecules used for gene therapy and nucleic acid delivery into mammalian cells, were recently shown to be effective in transforming Chlamydia spp. actively growing in host cells. We determined if we could adapt a similar system to transform A. phagocytophilum. Incubating fluorescently labeled PAMAM dendrimers with infected host cells resulted in fluorescein-positive ApVs. Incubating infected host cells or host cell-free A. phagocytophilum organisms with dendrimers complexed with pCis GFPuv-SS Himar A7 plasmid, which carries a Himar1 transposon cassette encoding GFPuv and spectinomycin/streptomycin resistance plus the Himar1 transposase itself, resulted in GFP-positive, antibiotic resistant bacteria. Yet, transformation efficiencies were low. The transformed bacterial populations could only be maintained for a few passages, likely due to random Himar1 cassette-mediated disruption of A. phagocytophilum genes required for fitness. Nonetheless, these results provide proof of principle that dendrimers can deliver exogenous DNA into A. phagocytophilum, both inside and outside of host cells.
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Affiliation(s)
- Aminat T Oki
- Department of Microbiology and Immunology, Virginia Commonwealth University School of Medicine, PO Box 980678, Richmond, VA, 23298-0678, United States
| | - David Seidman
- Department of Microbiology and Immunology, Virginia Commonwealth University School of Medicine, PO Box 980678, Richmond, VA, 23298-0678, United States
| | - Michael G Lancina
- Department of Biomedical Engineering, Virginia Commonwealth University School of Engineering, P.O. Box 843067, Richmond, VA 23284-3067, United States
| | - Manoj K Mishra
- Center for Nanomedicine, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21235, United States
| | - Rangaramanujam M Kannan
- Center for Nanomedicine, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21235, United States
| | - Hu Yang
- Department of Biomedical Engineering, Virginia Commonwealth University School of Engineering, P.O. Box 843067, Richmond, VA 23284-3067, United States
| | - Jason A Carlyon
- Department of Microbiology and Immunology, Virginia Commonwealth University School of Medicine, PO Box 980678, Richmond, VA, 23298-0678, United States.
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59
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siRNA Versus miRNA as Therapeutics for Gene Silencing. MOLECULAR THERAPY. NUCLEIC ACIDS 2015; 4:e252. [PMID: 26372022 PMCID: PMC4877448 DOI: 10.1038/mtna.2015.23] [Citation(s) in RCA: 631] [Impact Index Per Article: 70.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 07/18/2015] [Indexed: 02/06/2023]
Abstract
Discovered a little over two decades ago, small interfering RNAs (siRNAs) and microRNAs (miRNAs) are noncoding RNAs with important roles in gene regulation. They have recently been investigated as novel classes of therapeutic agents for the treatment of a wide range of disorders including cancers and infections. Clinical trials of siRNA- and miRNA-based drugs have already been initiated. siRNAs and miRNAs share many similarities, both are short duplex RNA molecules that exert gene silencing effects at the post-transcriptional level by targeting messenger RNA (mRNA), yet their mechanisms of action and clinical applications are distinct. The major difference between siRNAs and miRNAs is that the former are highly specific with only one mRNA target, whereas the latter have multiple targets. The therapeutic approaches of siRNAs and miRNAs are therefore very different. Hence, this review provides a comparison between therapeutic siRNAs and miRNAs in terms of their mechanisms of action, physicochemical properties, delivery, and clinical applications. Moreover, the challenges in developing both classes of RNA as therapeutics are also discussed.
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60
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Uram Ł, Szuster M, Filipowicz A, Gargasz K, Wołowiec S, Wałajtys-Rode E. Different patterns of nuclear and mitochondrial penetration by the G3 PAMAM dendrimer and its biotin-pyridoxal bioconjugate BC-PAMAM in normal and cancer cells in vitro. Int J Nanomedicine 2015; 10:5647-61. [PMID: 26379435 PMCID: PMC4567239 DOI: 10.2147/ijn.s87307] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The intracellular localization and colocalization of a fluorescently labeled G3 amine-terminated cationic polyamidoamine (PAMAM) dendrimer and its biotin-pyridoxal (BC-PAMAM) bioconjugate were investigated in a concentration-dependent manner in normal human fibroblast (BJ) and squamous epithelial carcinoma (SCC-15) cell lines. After 24 hours treatment, both cell lines revealed different patterns of intracellular dendrimer accumulation depending on their cytotoxic effects. Cancer cells exhibited much higher (20-fold) tolerance for native PAMAM treatment than fibroblasts, whereas BC-PAMAM was significantly toxic only for fibroblasts at 50 µM concentration. Fibroblasts accumulated the native and bioconjugated dendrimers in a concentration-dependent manner at nontoxic range of concentration, with significantly lower bioconjugate loading. After reaching the cytotoxicity level, fluorescein isothiocyanate-PAMAM accumulation remains at high, comparable level. In cancer cells, native PAMAM loading at higher, but not cytotoxic concentrations, was kept at constant level with a sharp increase at toxic concentration. Mander's coefficient calculated for fibroblasts and cancer cells confirmed more efficient native PAMAM penetration as compared to BC-PAMAM. Significant differences in nuclear dendrimer penetration were observed for both cell lines. In cancer cells, PAMAM signals amounted to ~25%-35% of the total nuclei area at all investigated concentrations, with lower level (15%-25%) observed for BC-PAMAM. In fibroblasts, the dendrimer nuclear signal amounted to 15% at nontoxic and up to 70% at toxic concentrations, whereas BC-PAMAM remained at a lower concentration-dependent level (0.3%-20%). Mitochondrial localization of PAMAM and BC-PAMAM revealed similar patterns in both cell lines, depending on the extracellular dendrimer concentration, and presented significantly lower signals from BC-PAMAM, which correlated well with the cytotoxicity.
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Affiliation(s)
- Łukasz Uram
- Bioorganic Chemistry Laboratory, Faculty of Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Magdalena Szuster
- Bioorganic Chemistry Laboratory, Faculty of Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Aleksandra Filipowicz
- Cosmetology Department, University of Information Technology and Management in Rzeszow, Rzeszow, Poland
| | - Krzysztof Gargasz
- Institute of Nursery and Health Sciences, Faculty of Medicine, University of Rzeszow, Rzeszow, Poland
| | - Stanisław Wołowiec
- Institute of Nursery and Health Sciences, Faculty of Medicine, University of Rzeszow, Rzeszow, Poland
| | - Elżbieta Wałajtys-Rode
- Department of Drug Technology and Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
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61
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Liu Y, Pang Y, Toh MR, Chiu GNC. Dual-functionalized poly(amidoamine) dendrimers with poly(ethylene glycol) conjugation and thiolation improved blood compatibility. ACTA ACUST UNITED AC 2015; 67:1492-502. [PMID: 26303576 DOI: 10.1111/jphp.12457] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/21/2015] [Indexed: 01/12/2023]
Abstract
OBJECTIVES This study aims to examine the blood compatibility of dual-functionalized poly(amidoamine) (PAMAM) dendrimers. METHODS The cationic PAMAM dendrimer of generation 4.0 (PM4.0) were functionalized by poly(ethylene glycol) (PEG) conjugation or by thiolation or the combination of both methods. Various in-vitro assays including immune cell cytotoxicity, haemoglobin release, serum albumin binding, complement activation and coagulation times were used to characterize the compatibility with blood components. KEY FINDINGS Although thiolation of polymers has been reported as a strategy to reduce platelet activation or aggregation, thiolation of PM4.0 alone did not offer any protective effect against the dendrimer toxicity on blood components or functions. PEGylation was able to reduce the toxic effect and interactions of the unmodified and thiolated PM4.0 on various blood components and functions; yet, PEGylated PM4.0 displayed prolonged prothrombin times and activated partial thromboplastin times. Among various PM4.0 derivatives, dual-functionalized PM4.0 with PEG and thiol groups displayed the least toxicity to various blood components and functions. CONCLUSIONS Our findings suggested that comprehensive studies of dendrimer biocompatibility should be performed so as to establish the safe dose window for systemic administration.
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Affiliation(s)
- Yuanjie Liu
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Yanzhen Pang
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Ming R Toh
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Gigi N C Chiu
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
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62
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Ming X, Wu L, Carver K, Yuan A, Min Y. Dendritic nanoconjugates for intracellular delivery of neutral oligonucleotides. NANOSCALE 2015; 7:12302-6. [PMID: 26134311 PMCID: PMC4598944 DOI: 10.1039/c5nr01665g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Dendrimer-based gene delivery has been constrained by intrinsic toxicity and suboptimal nanostructure. Conjugation of neutral morpholino oligonucleotides (ONs) with PAMAM dendrimers resulted in neutral, uniform, and ultra-small (∼10 nm) nanoconjugates. The nanoconjugates dramatically enhanced cellular delivery of the ONs in cancer cells. After release from the dendrimer in the cytosol, the ONs produced potent functional activity without causing significant cytotoxicity. When carrying an apoptosis-promoting ON, the nanoconjugates produced cancer cell killing directly. Thus, the dendritic nanoconjugates may provide an effective tool for delivering ONs to tumors and other diseased tissues.
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Affiliation(s)
- Xin Ming
- Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.
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63
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Shakhbazau A, Mishra M, Chu TH, Brideau C, Cummins K, Tsutsui S, Shcharbin D, Majoral JP, Mignani S, Blanchard-Desce M, Bryszewska M, Yong VW, Stys PK, van Minnen J. Fluorescent Phosphorus Dendrimer as a Spectral Nanosensor for Macrophage Polarization and Fate Tracking in Spinal Cord Injury. Macromol Biosci 2015; 15:1523-34. [DOI: 10.1002/mabi.201500150] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 05/29/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Antos Shakhbazau
- Hotchkiss Brain Institute and Cumming School of Medicine; University of Calgary; HRIC 1AA02, 3280 Hospital Drive, NW T2N4Z6 Calgary Canada
| | - Manoj Mishra
- Hotchkiss Brain Institute and Cumming School of Medicine; University of Calgary; HRIC 1AA02, 3280 Hospital Drive, NW T2N4Z6 Calgary Canada
| | - Tak-Ho Chu
- Hotchkiss Brain Institute and Cumming School of Medicine; University of Calgary; HRIC 1AA02, 3280 Hospital Drive, NW T2N4Z6 Calgary Canada
| | - Craig Brideau
- Hotchkiss Brain Institute and Cumming School of Medicine; University of Calgary; HRIC 1AA02, 3280 Hospital Drive, NW T2N4Z6 Calgary Canada
| | - Karen Cummins
- Hotchkiss Brain Institute and Cumming School of Medicine; University of Calgary; HRIC 1AA02, 3280 Hospital Drive, NW T2N4Z6 Calgary Canada
| | - Shigeki Tsutsui
- Hotchkiss Brain Institute and Cumming School of Medicine; University of Calgary; HRIC 1AA02, 3280 Hospital Drive, NW T2N4Z6 Calgary Canada
| | | | | | - Serge Mignani
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologique; Université Paris Descartes; Paris France
| | | | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection; University of Lodz; Lodz Poland
| | - V. Wee Yong
- Hotchkiss Brain Institute and Cumming School of Medicine; University of Calgary; HRIC 1AA02, 3280 Hospital Drive, NW T2N4Z6 Calgary Canada
| | - Peter K. Stys
- Hotchkiss Brain Institute and Cumming School of Medicine; University of Calgary; HRIC 1AA02, 3280 Hospital Drive, NW T2N4Z6 Calgary Canada
| | - Jan van Minnen
- Hotchkiss Brain Institute and Cumming School of Medicine; University of Calgary; HRIC 1AA02, 3280 Hospital Drive, NW T2N4Z6 Calgary Canada
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Akhtar S, Al-Zaid B, El-Hashim AZ, Chandrasekhar B, Attur S, Yousif MHM, Benter IF. Cationic Polyamidoamine Dendrimers as Modulators of EGFR Signaling In Vitro and In Vivo. PLoS One 2015; 10:e0132215. [PMID: 26167903 PMCID: PMC4500564 DOI: 10.1371/journal.pone.0132215] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 06/11/2015] [Indexed: 11/18/2022] Open
Abstract
Cationic polyamidoamine (PAMAM) dendrimers are branch-like spherical polymers being investigated for a variety of applications in nanomedicine including nucleic acid drug delivery. Emerging evidence suggests they exhibit intrinsic biological and toxicological effects but little is known of their interactions with signal transduction pathways. We previously showed that the activated (fragmented) generation (G) 6 PAMAM dendrimer, Superfect (SF), stimulated epidermal growth factor receptor (EGFR) tyrosine kinase signaling-an important signaling cascade that regulates cell growth, survival and apoptosis- in cultured human embryonic kidney (HEK 293) cells. Here, we firstly studied the in vitro effects of Polyfect (PF), a non-activated (intact) G6 PAMAM dendrimer, on EGFR tyrosine kinase signaling via extracellular-regulated kinase 1/2 (ERK1/2) and p38 mitogen-activated protein kinase (MAPK) in cultured HEK 293 cells and then compared the in vivo effects of a single administration (10mg/kg i.p) of PF or SF on EGFR signaling in the kidneys of normal and diabetic male Wistar rats. Polyfect exhibited a dose- and time-dependent inhibition of EGFR, ERK1/2 and p38 MAPK phosphorylation in HEK-293 cells similar to AG1478, a selective EGFR inhibitor. Administration of dendrimers to non-diabetic or diabetic animals for 24h showed that PF inhibited whereas SF stimulated EGFR phosphorylation in the kidneys of both sets of animals. PF-mediated inhibition of EGFR phosphorylation as well as SF or PF-mediated apoptosis in HEK 293 cells could be significantly reversed by co-treatment with antioxidants such as tempol implying that both these effects involved an oxidative stress-dependent mechanism. These results show for the first time that SF and PF PAMAM dendrimers can differentially modulate the important EGFR signal transduction pathway in vivo and may represent a novel class of EGFR modulators. These findings could have important clinical implications for the use of PAMAM dendrimers in nanomedicine.
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Affiliation(s)
- Saghir Akhtar
- Department of Pharmacology and Toxicology, Faculty of Medicine Kuwait University, Safat 13110, Jabriya, Kuwait
- * E-mail:
| | - Bashayer Al-Zaid
- Department of Pharmacology and Toxicology, Faculty of Medicine Kuwait University, Safat 13110, Jabriya, Kuwait
| | - Ahmed Z. El-Hashim
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Kuwait University, Safat 13110, Jabriya, Kuwait
| | - Bindu Chandrasekhar
- Department of Pharmacology and Toxicology, Faculty of Medicine Kuwait University, Safat 13110, Jabriya, Kuwait
| | - Sreeja Attur
- Department of Pharmacology and Toxicology, Faculty of Medicine Kuwait University, Safat 13110, Jabriya, Kuwait
| | - Mariam H. M. Yousif
- Department of Pharmacology and Toxicology, Faculty of Medicine Kuwait University, Safat 13110, Jabriya, Kuwait
| | - Ibrahim F. Benter
- Department of Pharmacology and Toxicology, Faculty of Medicine Kuwait University, Safat 13110, Jabriya, Kuwait
- Faculty of Medicine, Eastern Mediterranean University, Famagusta, North Cyprus
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65
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Chen M, Zeng Z, Qu X, Tang Y, Long Q, Feng X. Biocompatible anionic polyelectrolyte for improved liposome based gene transfection. Int J Pharm 2015; 490:173-9. [DOI: 10.1016/j.ijpharm.2015.05.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 05/04/2015] [Accepted: 05/17/2015] [Indexed: 01/01/2023]
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66
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Yang J, Zhang Q, Chang H, Cheng Y. Surface-Engineered Dendrimers in Gene Delivery. Chem Rev 2015; 115:5274-300. [DOI: 10.1021/cr500542t] [Citation(s) in RCA: 307] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jiepin Yang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Qiang Zhang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Hong Chang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Yiyun Cheng
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
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67
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Marson D, Laurini E, Posocco P, Fermeglia M, Pricl S. Cationic carbosilane dendrimers and oligonucleotide binding: an energetic affair. NANOSCALE 2015; 7:3876-3887. [PMID: 25340619 DOI: 10.1039/c4nr04510f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Generation 2 cationic carbosilane dendrimers hold great promise as internalizing agents for gene therapy as they present low toxicity and retain and internalize the genetic material as an oligonucleotide or siRNA. In this work we carried out complete in silico structural and energetical characterization of the interactions of a set of G2 carbosilane dendrimers, showing different affinity towards two single strand oligonucleotide (ODN) sequences in vitro. Our simulations predict that these four dendrimers and the relevant ODN complexes are characterized by similar size and shape, and that the molecule-specific ODN binding ability can be rationalized only by considering a critical molecular design parameter: the normalized effective binding energy ΔG(bind,eff)/N(eff), i.e. the performance of each active individual dendrimer branch directly involved in a binding interaction.
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Affiliation(s)
- D Marson
- Molecular Simulation Engineering (MOSE) Laboratory, DEA, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy.
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68
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Kaestner L, Scholz A, Lipp P. Conceptual and technical aspects of transfection and gene delivery. Bioorg Med Chem Lett 2015; 25:1171-6. [DOI: 10.1016/j.bmcl.2015.01.018] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 12/30/2014] [Accepted: 01/09/2015] [Indexed: 12/22/2022]
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69
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Shcharbin D, Shcharbina N, Shakhbazau A, Mignani S, Majoral JP, Bryszewska M. Phosphorus-containing nanoparticles: biomedical patents review. Expert Opin Ther Pat 2015; 25:539-48. [DOI: 10.1517/13543776.2015.1010512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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70
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Dai X, Tan C. Combination of microRNA therapeutics with small-molecule anticancer drugs: mechanism of action and co-delivery nanocarriers. Adv Drug Deliv Rev 2015; 81:184-97. [PMID: 25281917 DOI: 10.1016/j.addr.2014.09.010] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 09/17/2014] [Accepted: 09/24/2014] [Indexed: 12/11/2022]
Abstract
MicroRNAs (miRNAs) regulate multiple molecular pathways vital for the hallmarks of cancer with a high degree of biochemical specificity and potency. By restoring tumor suppressive miRNAs or ablating oncomiRs, miRNA-based therapies can sensitize cancer cells to conventional cytotoxins and the molecularly targeted drugs by promoting apoptosis and autophagy, reverting epithelial-to-mesenchymal transition, suppressing tumor angiogenesis, and downregulating efflux transporters. The development of miRNA-based therapeutics in combination with small-molecule anticancer drugs provides an unprecedented opportunity to counteract chemoresistance and improve treatment outcome in a broad range of human cancers. This review summarizes the mechanisms and advantages for the combination therapies involving miRNAs and small-molecule drugs, as well as the recent advances in the co-delivery nanocarriers for these agents.
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Affiliation(s)
- Xin Dai
- Cancer Nanomedicine Laboratory, Department of Pharmaceutical Sciences, Mercer University College of Pharmacy, 3001 Mercer University Drive, Atlanta, GA 30341, USA
| | - Chalet Tan
- Cancer Nanomedicine Laboratory, Department of Pharmaceutical Sciences, Mercer University College of Pharmacy, 3001 Mercer University Drive, Atlanta, GA 30341, USA.
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71
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Zhu K, Li J, Lai H, Yang C, Guo C, Wang C. Reprogramming fibroblasts to pluripotency using arginine-terminated polyamidoamine nanoparticles based non-viral gene delivery system. Int J Nanomedicine 2014; 9:5837-47. [PMID: 25540584 PMCID: PMC4270399 DOI: 10.2147/ijn.s73961] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Induced pluripotent stem cells (iPSCs) have attracted keen interest in regenerative medicine. The generation of iPSCs from somatic cells can be achieved by the delivery of defined transcription factor (Oct4, Sox2, Klf4, and c-Myc[OSKM]). However, most instances of iPSC-generation have been achieved by potentially harmful genome-integrating viral vectors. Here we report the generation of iPSCs from mouse embryonic fibroblasts (MEFs) using arginine-terminated generation 4 polyamidoamine (G4Arg) nanoparticles as a nonviral transfection vector for the delivery of a single plasmid construct carrying OSKM (pOSKM). Our results showed that G4Arg nanoparticles delivered pOSKM into MEFs at a significantly higher transfection efficiency than did conventional transfection reagents. After serial transfections of pOSKM-encapsulated G4Arg nanoparticles, we successfully generated iPSCs from MEFs. Our study demonstrates that G4Arg nanoparticles may be a promising candidate for generating of virus-free iPSCs that have great potential for clinical application.
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Affiliation(s)
- Kai Zhu
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Jun Li
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Hao Lai
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Cheng Yang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Changfa Guo
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Chunsheng Wang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
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72
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Zhu K, Lai H, Guo C, Li J, Wang Y, Wang L, Wang C. Nanovector-based prolyl hydroxylase domain 2 silencing system enhances the efficiency of stem cell transplantation for infarcted myocardium repair. Int J Nanomedicine 2014; 9:5203-15. [PMID: 25429216 PMCID: PMC4243506 DOI: 10.2147/ijn.s71586] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Mesenchymal stem cell (MSC) transplantation has attracted much attention in myocardial infarction therapy. One of the limitations is the poor survival of grafted cells in the ischemic microenvironment. Small interfering RNA-mediated prolyl hydroxylase domain protein 2 (PHD2) silencing in MSCs holds tremendous potential to enhance their survival and paracrine effect after transplantation. However, an efficient and biocompatible PHD2 silencing system for clinical application is lacking. Herein, we developed a novel PHD2 silencing system based on arginine-terminated generation 4 poly(amidoamine) (Arg-G4) nanoparticles. The system exhibited effective and biocompatible small interfering RNA delivery and PHD2 silencing in MSCs in vitro. After genetically modified MSC transplantation in myocardial infarction models, MSC survival and paracrine function of IGF-1 were enhanced significantly in vivo. As a result, we observed decreased cardiomyocyte apoptosis, scar size, and interstitial fibrosis, and increased angiogenesis in the diseased myocardium, which ultimately attenuated ventricular remodeling and improved heart function. This work demonstrated that an Arg-G4 nanovector-based PHD2 silencing system could enhance the efficiency of MSC transplantation for infarcted myocardium repair.
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Affiliation(s)
- Kai Zhu
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Hao Lai
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Changfa Guo
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Jun Li
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Yulin Wang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
| | - Lingyan Wang
- Biomedical Research Center, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Chunsheng Wang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China ; Shanghai Institute of Cardiovascular Disease, Shanghai, People's Republic of China
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73
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Garbuzenko OB, Winkler J, Tomassone MS, Minko T. Biodegradable Janus nanoparticles for local pulmonary delivery of hydrophilic and hydrophobic molecules to the lungs. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:12941-9. [PMID: 25300552 PMCID: PMC4222657 DOI: 10.1021/la502144z] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 10/04/2014] [Indexed: 05/21/2023]
Abstract
The aim of the present work is to synthesize, characterize, and test self-assembled anisotropic or Janus particles designed to load anticancer drugs for lung cancer treatment by inhalation. The particles were synthesized using binary mixtures of biodegradable and biocompatible materials. The particles did not demonstrate cyto- and genotoxic effects. Janus particles were internalized by cancer cells and accumulated both in the cytoplasm and nuclei. After inhalation delivery, nanoparticles accumulated preferentially in the lungs of mice and retained there for at least 24 h. Two drugs or other biologically active components with substantially different aqueous solubility can be simultaneously loaded in two-phases (polymer-lipid) of these nanoparticles. In the present proof-of-concept investigation, the particles were loaded with two anticancer drugs: doxorubicin and curcumin as model anticancer drugs with relatively high and low aqueous solubility, respectively. However, there are no obstacles for loading any hydrophobic or hydrophilic chemical agents. Nanoparticles with dual load were used for their local inhalation delivery directly to the lungs of mice with orthotopic model of human lung cancer. In vivo experiments showed that the selected nanoparticles with two anticancer drugs with different mechanisms of action prevented progression of lung tumors. It should be stressed that anticancer effects of the combined treatment with two anticancer drugs loaded in the same nanoparticle significantly exceeded the effect of either drug loaded in similar nanoparticles alone.
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Affiliation(s)
- Olga B. Garbuzenko
- Department
of Pharmaceutics, Rutgers, The State University
of New Jersey University, 160 Frelinghuysen Rd., Piscataway, New Jersey 08854, United States
| | - Jennifer Winkler
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
| | - M. Silvina Tomassone
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
- Phone: 732-445-2972; fax: 732-445-2581; e-mail:
| | - Tamara Minko
- Department
of Pharmaceutics, Rutgers, The State University
of New Jersey University, 160 Frelinghuysen Rd., Piscataway, New Jersey 08854, United States
- Phone: 848-445-6348; fax: 732-445-3134; e-mail:
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74
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Li CY, Wang HJ, Cao JM, Zhang J, Yu XQ. Bioreducible cross-linked polymers based on G1 peptide dendrimer as potential gene delivery vectors. Eur J Med Chem 2014; 87:413-20. [PMID: 25282264 DOI: 10.1016/j.ejmech.2014.09.091] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 09/04/2014] [Accepted: 09/29/2014] [Indexed: 01/18/2023]
Abstract
A series of cationic polymers based on low generation (G1) peptide dendrimer were synthesized with disulfide-containing linkages. The DNA binding abilities of the target polymers were studied by gel electrophoresis and fluorescence quenching assay. The bioreducible property of the disulfide-containing polymers P2 and P3 was also investigated in the presence of dithiothreitol (DTT). Results from dynamic light scattering (DLS) and transmission electron microscopy (TEM) assays reveal that these materials may condense DNA into nanoparticles with proper sizes and zeta-potentials. In vitro cell experiments show that compared to branched 25 KDa PEI, P2 and P3 may exhibit much higher gene transfection efficiency and lower cytotoxicity in both HEK293 and U-2OS cells. Additionally, polymer prepared from Michael addition gives better gene transfection ability, while polymer prepared from ring-opening reaction has better serum tolerance. Results indicate that these polymers might be promising non-viral gene vectors for their easy preparation, very low cytotoxicity, and good transfection efficiency.
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Affiliation(s)
- Chun-Yan Li
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Hai-Jiao Wang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Jing-Ming Cao
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China.
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China.
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75
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Zhou Z, Ma X, Murphy CJ, Jin E, Sun Q, Shen Y, Van Kirk EA, Murdoch WJ. Molecularly Precise Dendrimer-Drug Conjugates with Tunable Drug Release for Cancer Therapy. Angew Chem Int Ed Engl 2014; 53:10949-55. [DOI: 10.1002/anie.201406442] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Revised: 07/29/2014] [Indexed: 11/10/2022]
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76
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Zhou Z, Ma X, Murphy CJ, Jin E, Sun Q, Shen Y, Van Kirk EA, Murdoch WJ. Molecularly Precise Dendrimer-Drug Conjugates with Tunable Drug Release for Cancer Therapy. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406442] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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77
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How to study dendrimers and dendriplexes III. Biodistribution, pharmacokinetics and toxicity in vivo. J Control Release 2014; 181:40-52. [DOI: 10.1016/j.jconrel.2014.02.021] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 02/21/2014] [Accepted: 02/22/2014] [Indexed: 12/15/2022]
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78
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Garbuzenko OB, Mainelis G, Taratula O, Minko T. Inhalation treatment of lung cancer: the influence of composition, size and shape of nanocarriers on their lung accumulation and retention. Cancer Biol Med 2014; 11:44-55. [PMID: 24738038 PMCID: PMC3969800 DOI: 10.7497/j.issn.2095-3941.2014.01.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Accepted: 02/05/2014] [Indexed: 12/14/2022] Open
Abstract
Objective Various nanoparticles have been designed and tested in order to select optimal carriers for the inhalation delivery of anticancer drugs to the lungs. Methods The following nanocarriers were studied: micelles, liposomes, mesoporous silica nanoparticles (MSNs), poly propyleneimine (PPI) dendrimer-siRNA complexes nanoparticles, quantum dots (QDs), and poly (ethylene glycol) polymers. All particles were characterized using the following methods: dynamic light scattering, zeta potential, atomic force microscopy, in vitro cyto- and genotoxicity. In vivo organ distribution of all nanoparticles, retention in the lungs, and anticancer effects of liposomes loaded with doxorubicin were examined in nude mice after the pulmonary or intravenous delivery. Results Significant differences in lung uptake were found after the inhalation delivery of lipid-based and non-lipid-based nanoparticles. The accumulation of liposomes and micelles in lungs remained relatively high even 24 h after inhalation when compared with MSNs, QDs, and PPI dendrimers. There were notable differences between nanoparticle accumulation in the lungs and other organs 1 and 3 h after inhalation or intravenous administrations, but 24 h after intravenous injection all nanoparticles were mainly accumulated in the liver, kidneys, and spleen. Inhalation delivery of doxorubicin by liposomes significantly enhanced its anticancer effect and prevented severe adverse side effects of the treatment in mice bearing the orthotopic model of lung cancer. Conclusion The results of the study demonstrate that lipid-based nanocarriers had considerably higher accumulation and longer retention time in the lungs when compared with non-lipid-based carriers after the inhalation delivery. These particles are most suitable for effective inhalation treatment of lung cancer.
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Affiliation(s)
- Olga B Garbuzenko
- 1 Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA ; 2 Department of Environmental Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA ; 3 Environmental and Occupational Health Sciences Institute, Piscataway, NJ 08854, USA ; 4 Department of Pharmaceutical Sciences, Oregon State University, Corvallis 97331, USA ; 5 Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
| | - Gediminas Mainelis
- 1 Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA ; 2 Department of Environmental Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA ; 3 Environmental and Occupational Health Sciences Institute, Piscataway, NJ 08854, USA ; 4 Department of Pharmaceutical Sciences, Oregon State University, Corvallis 97331, USA ; 5 Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
| | - Oleh Taratula
- 1 Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA ; 2 Department of Environmental Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA ; 3 Environmental and Occupational Health Sciences Institute, Piscataway, NJ 08854, USA ; 4 Department of Pharmaceutical Sciences, Oregon State University, Corvallis 97331, USA ; 5 Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
| | - Tamara Minko
- 1 Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA ; 2 Department of Environmental Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA ; 3 Environmental and Occupational Health Sciences Institute, Piscataway, NJ 08854, USA ; 4 Department of Pharmaceutical Sciences, Oregon State University, Corvallis 97331, USA ; 5 Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
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79
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Sun Y, Jiao Y, Wang Y, Lu D, Yang W. The strategy to improve gene transfection efficiency and biocompatibility of hyperbranched PAMAM with the cooperation of PEGylated hyperbranched PAMAM. Int J Pharm 2014; 465:112-9. [PMID: 24530382 DOI: 10.1016/j.ijpharm.2014.02.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Revised: 01/04/2014] [Accepted: 02/08/2014] [Indexed: 12/19/2022]
Abstract
As a promising non-viral gene vector, cationic polyamidoamine (PAMAM) dendrimer could form complexes with negative charged DNA to mediate efficient gene delivery in vitro and in vivo. However, complicated synthesis technology and potential cytotoxicity limited their application in clinical translational researches. Hyperbranched polyamidoamine (h-PAMAM), which could be synthesized by a simpler one-pot method, has similar properties with PAMAM, and PEGylation modification of h-PAMAM has been used to reduce cytotoxicity. Here we prepared gene delivery system with h-PAMAM and h-PAMAM derivative h-PAMAM-g-PEG, respectively and found that the viability of cells with h-PAMAM-g-PEG was quite higher in comparison with cells with unmodified h-PAMAM. However, gene delivery efficiency was lower with h-PAMAM-g-PEG. Then we used mixture composed of h-PAMAM and h-PAMAM-g-PEG and such composition was designed to reduce cytotoxicity while maintaining high transfection efficiency. Our results indicated that this mixture system of h-PAMAM and h-PAMAM-g-PEG achieved higher transfection efficiency and lower cytotoxicity compared with h-PAMAM-only system.
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Affiliation(s)
- Yangfei Sun
- State Key Laboratory of Genetic Engineering and School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Yunfeng Jiao
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yang Wang
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Daru Lu
- State Key Laboratory of Genetic Engineering and School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Wuli Yang
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
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