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Nishimoto Y, Nagashima S, Nakajima K, Ohira T, Sato T, Izawa T, Yamate J, Higashikawa K, Kuge Y, Ogawa M, Kojima C. Carboxyl-, sulfonyl-, and phosphate-terminal dendrimers as a nanoplatform with lymph node targeting. Int J Pharm 2020; 576:119021. [PMID: 31917298 DOI: 10.1016/j.ijpharm.2020.119021] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 11/30/2019] [Accepted: 01/03/2020] [Indexed: 01/10/2023]
Abstract
The development of drug delivery vehicles to cancer and/or immune cells in lymph nodes is important for cancer diagnosis, therapy, and immunotherapy. We previously reported that anionic carboxyl-terminal dendrimers were accumulated in lymph nodes. In this study, three anionic dendrimers with carboxyl-, sulfonyl-, and phosphate-terminal groups were prepared to examine the lymph node targeting and the association with immune cells in the lymph nodes. These anionic dendrimers were accumulated in the lymph node by intradermal injection. Although the carboxyl- and sulfonyl-terminal dendrimers were diffused from the injection site, the phosphate-terminal dendrimers were mostly retained. The phosphate-terminal dendrimer was recognized by the macrophages, dendritic cells, and B cells in the lymph node, whereas the carboxyl- and sulfonyl-terminal dendrimers were not. Our results show that these anionic dendrimers were accumulated in the lymph node where the association with immune cells could be controlled by the terminal structure of the dendrimer. The phosphate-terminal dendrimer can be used as a nanoplatform for the delivery of some bioactive molecules to some immune cells, including B cells, in the lymph node.
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Affiliation(s)
- Yutaka Nishimoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-2, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Shu Nagashima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-2, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Kohei Nakajima
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Takayuki Ohira
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Tatsumi Sato
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-2, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Takeshi Izawa
- Laboratory of Veterinary Pathology, Osaka Prefecture University, 1-58, Rinku Orai Kita, Izumisano, Osaka 598-8531, Japan
| | - Jyoji Yamate
- Laboratory of Veterinary Pathology, Osaka Prefecture University, 1-58, Rinku Orai Kita, Izumisano, Osaka 598-8531, Japan
| | - Kei Higashikawa
- Central Institutes of Isotope Science, Hokkaido University, Kita 15 Nishi 7, Kita-ku, Sapporo, Hokkaido 060-0815, Japan
| | - Yuji Kuge
- Central Institutes of Isotope Science, Hokkaido University, Kita 15 Nishi 7, Kita-ku, Sapporo, Hokkaido 060-0815, Japan
| | - Mikako Ogawa
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Chie Kojima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-2, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan.
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Kheiriabad S, Ghaffari M, Dolatabadi JEN, Hamblin MR. PAMAM Dendrimers as a Delivery System for Small Interfering RNA. Methods Mol Biol 2020; 2115:91-106. [PMID: 32006396 DOI: 10.1007/978-1-0716-0290-4_5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Polyamidoamine dendrimers (PAMAM) form positively charged nanoparticles that function as nonviral delivery vectors for gene therapy. They protect nucleic acids from enzymatic degradation and facilitate endocytosis and endosomal escape. In this chapter, we describe the preparation and in vitro evaluation of small interfering RNA (siRNA)-PAMAM dendrimers. The physicochemical properties of the designed formulations were evaluated by size and zeta potential assessment and atomic force microscopy (AFM). The binding and release of the siRNA molecules from the PAMAM dendrimers were also assessed. Visualization and quantitative analysis of the siRNA-PAMAM dendrimers in live cells were analyzed by fluorescence microscopy and flow cytometry, respectively. Improving siRNA delivery to human cells through PAMAM dendrimers should accelerate the clinical applications of RNA interference.
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Affiliation(s)
- Shiva Kheiriabad
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Ghaffari
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA.
- Department of Dermatology, Harvard Medical School, Boston, MA, USA.
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa.
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Ghaffari M, Dehghan G, Baradaran B, Zarebkohan A, Mansoori B, Soleymani J, Ezzati Nazhad Dolatabadi J, Hamblin MR. Co-delivery of curcumin and Bcl-2 siRNA by PAMAM dendrimers for enhancement of the therapeutic efficacy in HeLa cancer cells. Colloids Surf B Biointerfaces 2019; 188:110762. [PMID: 31911391 DOI: 10.1016/j.colsurfb.2019.110762] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 12/24/2019] [Accepted: 12/25/2019] [Indexed: 12/25/2022]
Abstract
Co-delivery of therapeutic agents and small interfering RNA (siRNA) can be achieved by a suitable nanovehicle. In this work, the solubility and bioavailability of curcumin (Cur) were enhanced by entrapment in a polyamidoamine (PAMAM) dendrimer, and a polyplex was formed by grafting Bcl-2 siRNA onto the surface amine groups to produce PAMAM-Cur/Bcl-2 siRNA nanoparticles (NPs). The synthesized polyplex NPs had a particle size of ∼180 nm, and high Cur loading content of ∼82 wt%. Moreover, the PAMAM-Cur/Bcl-2 siRNA NPs showed more effective cellular uptake, and higher inhibition of tumor cell proliferation compared to PAMAM-Cur nanoformulation and free Cur, due to the combined effect of co-delivery of Cur and Bcl-2 siRNA. The newly described PAMAM-Cur/Bcl-2 siRNA polyplex NPs could be a promising co-delivery nanovehicle.
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Affiliation(s)
- Maryam Ghaffari
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Gholamreza Dehghan
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Zarebkohan
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Science, Tabriz, Iran
| | - Behzad Mansoori
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jafar Soleymani
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA; Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein 2028, South Africa.
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Bhatt H, Kiran Rompicharla SV, Ghosh B, Torchilin V, Biswas S. Transferrin/α-tocopherol modified poly(amidoamine) dendrimers for improved tumor targeting and anticancer activity of paclitaxel. Nanomedicine (Lond) 2019; 14:3159-3176. [PMID: 31855118 PMCID: PMC6939222 DOI: 10.2217/nnm-2019-0128] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Aim: Transferrin anchored, poly(ethylene glycol) (PEG) and α-tocopheryl succinate (α-TOS) conjugated generation 4 dendrimer has been prepared in order to develop a tumor targeted delivery system of a hydrophobic chemotherapeutic agent, paclitaxel (PTX). Materials & methods: The dendrimers were characterized physicochemically for size, ζ and encapsulation ability. The cellular uptake, cytotoxicity potential and apoptosis of prepared nanoconstruct were evaluated in human cervical epithelial cells monolayer and 3D spheroids. Results & conclusion: G4-TOS-PEG-Tf demonstrated increased cellular uptake, cytotoxicity and apoptotic potential of PTX compared with free PTX and G4-TOS-PEG-PTX. G4-TOS-PEG-Tf-PTX inhibited growth of human cervical epithelial cells spheroids significantly. The newly developed dendrimers hold promise as an efficient delivery system for PTX or other hydrophobic chemotherapeutic agents for targeted delivery to tumors.
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Affiliation(s)
- Himanshu Bhatt
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana, 500078, India
| | - Sri Vishnu Kiran Rompicharla
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana, 500078, India
| | - Balaram Ghosh
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana, 500078, India
| | - Vladimir Torchilin
- Center for Pharmaceutical Biotechnology & Nanomedicine, Northeastern University, Boston, MA 02115, USA
| | - Swati Biswas
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana, 500078, India,Author for correspondence: Tel.: +91 40 66303630;
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Zhu Y, Liu C, Pang Z. Dendrimer-Based Drug Delivery Systems for Brain Targeting. Biomolecules 2019; 9:E790. [PMID: 31783573 PMCID: PMC6995517 DOI: 10.3390/biom9120790] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/14/2019] [Accepted: 11/22/2019] [Indexed: 02/06/2023] Open
Abstract
Human neuroscience has made remarkable progress in understanding basic aspects of functional organization; it is a renowned fact that the blood-brain barrier (BBB) impedes the permeation and access of most drugs to central nervous system (CNS) and that many neurological diseases remain undertreated. Therefore, a number of nanocarriers have been designed over the past few decades to deliver drugs to the brain. Among these nanomaterials, dendrimers have procured an enormous attention from scholars because of their nanoscale uniform size, ease of multi-functionalization, and available internal cavities. As hyper-branched 3D macromolecules, dendrimers can be maneuvered to transport diverse therapeutic agents, incorporating small molecules, peptides, and genes; diminishing their cytotoxicity; and improving their efficacy. Herein, the present review will give exhaustive details of extensive researches in the field of dendrimer-based vehicles to deliver drugs through the BBB in a secure and effectual manner. It is also a souvenir in commemorating Donald A. Tomalia on his 80th birthday.
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Affiliation(s)
- Yuefei Zhu
- Key Laboratory of Smart Drug Delivery, School of Pharmacy, Fudan University, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China; (Y.Z.); (C.L.)
- Department of Biomedical Engineering, Columbia University Medical Center, 3960 Broadway, New York, NY 10032, USA
| | - Chunying Liu
- Key Laboratory of Smart Drug Delivery, School of Pharmacy, Fudan University, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China; (Y.Z.); (C.L.)
| | - Zhiqing Pang
- Key Laboratory of Smart Drug Delivery, School of Pharmacy, Fudan University, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China; (Y.Z.); (C.L.)
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Valikala V, Santhakumar I, Kannappan S. Synthesis and effect of pegylation on citric acid dendritic nano architectures anchored with cefotaxime sodium. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 201:111683. [PMID: 31710928 DOI: 10.1016/j.jphotobiol.2019.111683] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 10/27/2019] [Accepted: 11/01/2019] [Indexed: 11/29/2022]
Abstract
In recent years dendrimers have fascinated the investigators towards targeted drug delivery because of their versatile framework and exhibit immense potentiality in entrapping drug moieties through host-guest interactions and serve as a promising vector in biological applications. The current investigation is focused on developing pegylated citric acid cefotaxime dendrimers through the divergent method and its characterization through spectroscopic, microscopic, thermal and microscopic techniques. Among the spectroscopic techniques, 1H NMR and 13C NMR elucidated the key functional groups at various chemical shifts while ESI-MS pointed out the molecular weight of cefotaxime sodium in various generations. Similarly, FTIR, DSC, and AFM investigations detailed that the generations are devoid of incompatibilities, structural deformities and can be opted for targeted drug delivery. The drug entrapment studies and in-vitro drug release studies highlight CFTX G5 containing 92.4% entrapment efficacy and 83.8% drug release in 48 h and specifies a sustain release characteristics. In connection to the above, the in-vivo studies reveal a potent antibacterial activity against various gram-positive and gram-negative microorganisms with a decreased hemolysis and cytotoxicity effects and reflect a high margin of safety regarding pegylated CFTX dendrimers. Further, the antibacterial activities are supported through confocal microscopy that clarified the cellular uptake of dendritic molecules and their internalization.
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Affiliation(s)
- Viswanath Valikala
- School of Advanced Sciences, Vellore Institute of Technology, Tamil Nadu, India
| | - Induja Santhakumar
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore
| | - Santhakumar Kannappan
- School of Advanced Sciences, Vellore Institute of Technology, Tamil Nadu, India; Carbon dioxide Research and Green Technology Centre, Vellore Institute of Technology, Tamilnadu, India.
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57
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Dzhardimalieva GI, Rabinskiy LN, Kydralieva KA, Uflyand IE. Recent advances in metallopolymer-based drug delivery systems. RSC Adv 2019; 9:37009-37051. [PMID: 35539076 PMCID: PMC9075603 DOI: 10.1039/c9ra06678k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 11/06/2019] [Indexed: 12/12/2022] Open
Abstract
Metallopolymers (MPs) or metal-containing polymers have shown great potential as new drug delivery systems (DDSs) due to their unique properties, including universal architectures, composition, properties and surface chemistry. Over the past few decades, the exponential growth of many new classes of MPs that deal with these issues has been demonstrated. This review presents and assesses the recent advances and challenges associated with using MPs as DDSs. Among the most widely used MPs for these purposes, metal complexes based on synthetic and natural polymers, coordination polymers, metal-organic frameworks, and metallodendrimers are distinguished. Particular attention is paid to the stimulus- and multistimuli-responsive metallopolymer-based DDSs. Of considerable interest is the use of MPs for combination therapy and multimodal systems. Finally, the problems and future prospects of using metallopolymer-based DDSs are outlined. The bibliography includes articles published over the past five years.
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Affiliation(s)
- Gulzhian I Dzhardimalieva
- Laboratory of Metallopolymers, The Institute of Problems of Chemical Physics RAS Academician Semenov Avenue 1 Chernogolovka Moscow Region 142432 Russian Federation
- Moscow Aviation Institute (National Research University) Volokolamskoe Shosse, 4 Moscow 125993 Russia
| | - Lev N Rabinskiy
- Moscow Aviation Institute (National Research University) Volokolamskoe Shosse, 4 Moscow 125993 Russia
| | - Kamila A Kydralieva
- Moscow Aviation Institute (National Research University) Volokolamskoe Shosse, 4 Moscow 125993 Russia
| | - Igor E Uflyand
- Department of Chemistry, Southern Federal University B. Sadovaya Str. 105/42 Rostov-on-Don 344006 Russian Federation
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Saluja V, Mankoo A, Saraogi GK, Tambuwala MM, Mishra V. Smart dendrimers: Synergizing the targeting of anticancer bioactives. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.04.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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59
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Navya PN, Kaphle A, Srinivas SP, Bhargava SK, Rotello VM, Daima HK. Current trends and challenges in cancer management and therapy using designer nanomaterials. NANO CONVERGENCE 2019; 6:23. [PMID: 31304563 PMCID: PMC6626766 DOI: 10.1186/s40580-019-0193-2] [Citation(s) in RCA: 333] [Impact Index Per Article: 66.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 06/17/2019] [Indexed: 05/06/2023]
Abstract
Nanotechnology has the potential to circumvent several drawbacks of conventional therapeutic formulations. In fact, significant strides have been made towards the application of engineered nanomaterials for the treatment of cancer with high specificity, sensitivity and efficacy. Tailor-made nanomaterials functionalized with specific ligands can target cancer cells in a predictable manner and deliver encapsulated payloads effectively. Moreover, nanomaterials can also be designed for increased drug loading, improved half-life in the body, controlled release, and selective distribution by modifying their composition, size, morphology, and surface chemistry. To date, polymeric nanomaterials, metallic nanoparticles, carbon-based materials, liposomes, and dendrimers have been developed as smart drug delivery systems for cancer treatment, demonstrating enhanced pharmacokinetic and pharmacodynamic profiles over conventional formulations due to their nanoscale size and unique physicochemical characteristics. The data present in the literature suggest that nanotechnology will provide next-generation platforms for cancer management and anticancer therapy. Therefore, in this critical review, we summarize a range of nanomaterials which are currently being employed for anticancer therapies and discuss the fundamental role of their physicochemical properties in cancer management. We further elaborate on the topical progress made to date toward nanomaterial engineering for cancer therapy, including current strategies for drug targeting and release for efficient cancer administration. We also discuss issues of nanotoxicity, which is an often-neglected feature of nanotechnology. Finally, we attempt to summarize the current challenges in nanotherapeutics and provide an outlook on the future of this important field.
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Affiliation(s)
- P N Navya
- Nano-Bio Interfacial Research Laboratory (NBIRL), Department of Biotechnology, Siddaganga Institute of Technology, Tumkur, Karnataka, 572103, India.
- Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Erode, Tamil Nadu, 638401, India.
| | - Anubhav Kaphle
- Melbourne Integrative Genomics, School of BioSciences/School of Mathematics and Statistics, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - S P Srinivas
- School of Optometry, Indiana University, Bloomington, Indiana, 47405, USA
| | - Suresh Kumar Bhargava
- Centre for Advanced Materials and Industrial Chemistry, School of Science, RMIT University, Melbourne, VIC, 3001, Australia
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts (UMass) Amherst, 710 North Pleasant Street, Amherst, MA, 01003, USA
| | - Hemant Kumar Daima
- Nano-Bio Interfacial Research Laboratory (NBIRL), Department of Biotechnology, Siddaganga Institute of Technology, Tumkur, Karnataka, 572103, India.
- Centre for Advanced Materials and Industrial Chemistry, School of Science, RMIT University, Melbourne, VIC, 3001, Australia.
- Amity Institute of Biotechnology, Amity University Rajasthan, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur, Rajasthan, 303002, India.
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Sheveleva NN, Markelov DA, Vovk MA, Tarasenko II, Mikhailova ME, Ilyash MY, Neelov IM, Lahderanta E. Stable Deuterium Labeling of Histidine-Rich Lysine-Based Dendrimers. Molecules 2019; 24:E2481. [PMID: 31284551 PMCID: PMC6651089 DOI: 10.3390/molecules24132481] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 07/02/2019] [Accepted: 07/04/2019] [Indexed: 01/02/2023] Open
Abstract
Peptide dendrimers, due to their biocompatibility and low toxicity, are highly promising candidates as nanocarriers for drugs and genes. The development of this kind of delivery system requires reliable monitoring of their metabolic and biological pathways. In this respect, hydrogen isotope labeling has tremendous importance, being a safe tool for detection of the labeled nanocarriers. In this work, we have synthesized new histidine-rich lysine-based dendrimers (Lys-2His dendrimer) with two linear histidine (His) residues in every inner segment. The presence of His residues has enabled us to perform controlled deuteration of Lys-2His dendrimers. The high deuteration degree (around 70%) does not practically change after redissolving the samples in H2O and heating them at 40 °C, which indicates the isotopic label stability.
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Affiliation(s)
- Nadezhda N Sheveleva
- Saint Petersburg State University, 7/9 Universitetskaya nab, 199034 Saint Petersburg, Russia
| | - Denis A Markelov
- Saint Petersburg State University, 7/9 Universitetskaya nab, 199034 Saint Petersburg, Russia.
| | - Mikhail A Vovk
- Saint Petersburg State University, 7/9 Universitetskaya nab, 199034 Saint Petersburg, Russia
| | - Irina I Tarasenko
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi Prospect 31, V.O., 199004 Saint Petersburg, Russia
| | - Mariya E Mikhailova
- Saint Petersburg State University, 7/9 Universitetskaya nab, 199034 Saint Petersburg, Russia
| | - Maxim Yu Ilyash
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University), Kronverkskiy pr. 49, 197101 Saint Petersburg, Russia
| | - Igor M Neelov
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University), Kronverkskiy pr. 49, 197101 Saint Petersburg, Russia
| | - Erkki Lahderanta
- Department of Physics, LUT University, Box 20, 53851 Lappeenranta, Finland
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Choi CA, Ryplida B, In I, Park SY. Selective redox-responsive theragnosis nanocarrier for breast tumor cells mediated by MnO2/fluorescent carbon nanogel. Eur J Pharm Sci 2019; 134:256-265. [DOI: 10.1016/j.ejps.2019.04.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/25/2019] [Accepted: 04/27/2019] [Indexed: 02/08/2023]
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62
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Sheveleva N, Markelov DA, Vovk MA, Mikhailova ME, Tarasenko II, Tolstoy PM, Neelov IM, Lähderanta E. Lysine-based dendrimer with double arginine residues. RSC Adv 2019; 9:18018-18026. [PMID: 35520554 PMCID: PMC9064636 DOI: 10.1039/c9ra02461a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 05/29/2019] [Indexed: 02/01/2023] Open
Abstract
Due to their well-defined structure, multivalency, biocompatibility, and low toxicity, lysine dendrimers can be used as safe and efficient nanocarriers for drug and gene delivery. One useful strategy for improving the gene delivery properties of dendrimers is modification with arginine amino acid (Arg) residues. Incorporation of Arg residues could be favorable for the enhancement in transfection efficiency of lysine based dendrimers. In this work, we have synthesized a new second-generation poly-l-lysine dendrimer with repeating units containing two linear Arg residues between neighboring lysine branching points (Lys-2Arg dendrimer) and studied its physicochemical properties. We confirmed the structure of Lys-2Arg dendrimer using various one- and two-dimensional 1H and 13C NMR spectroscopy methods. Comparison of T1H relaxation data for Lys-2Arg and Lys-2Lys dendrimers showed that the replacement of double Lys residues with double Arg residues resulted in a sharp decrease in the mobility of methylene groups in side segments and in the main chain of ε-Lys inner segments. We suggest that this unexpected effect is caused by a guanidine–guanidine pairing effect in water, which leads to entanglements between dendrimer branches. A new poly-l-lysine dendrimer with arginine residues was synthesized and its structure and physical–chemical properties were analyzed by NMR spectroscopy.![]()
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Affiliation(s)
| | | | | | | | - Irina I. Tarasenko
- Institute of Macromolecular Compounds
- Russian Academy of Sciences
- St. Petersburg
- 199004 Russia
| | | | - Igor M. Neelov
- St. Petersburg National Research University of Information Technologies
- Mechanics and Optics (ITMO University)
- St. Petersburg
- 197101 Russia
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