1
|
Zhao J, Li S, Pang X, Shan Y. Evaluating the therapeutic efficacy of nano-drugs targeting epidermal growth factor receptor. Chem Commun (Camb) 2022; 58:2726-2729. [PMID: 35113095 DOI: 10.1039/d1cc06754k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Epidermal growth factor receptor (EGFR) targeted nano-drugs facilitate effective diagnosis and treatment of cancer. Herein, the therapeutic efficacy of nano-drugs targeting EGFR was evaluated from the perspective of cell entry efficiency and induced cell mechanical properties using force tracing and nano-indentation techniques at the single particle/cell level in real time.
Collapse
Affiliation(s)
- Jing Zhao
- School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China.
| | - Siying Li
- School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China.
| | - Xuelei Pang
- School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China.
| | - Yuping Shan
- School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China.
| |
Collapse
|
2
|
Oleksa V, Macková H, Engstová H, Patsula V, Shapoval O, Velychkivska N, Ježek P, Horák D. Poly(N,N-dimethylacrylamide)-coated upconverting NaYF 4:Yb,Er@NaYF 4:Nd core-shell nanoparticles for fluorescent labeling of carcinoma cells. Sci Rep 2021; 11:21373. [PMID: 34725396 PMCID: PMC8560758 DOI: 10.1038/s41598-021-00845-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/19/2021] [Indexed: 01/24/2023] Open
Abstract
Upconverting luminescent lanthanide-doped nanoparticles (UCNP) belong to promising new materials that absorb infrared light able to penetrate in the deep tissue level, while emitting photons in the visible or ultraviolet region, which makes them favorable for bioimaging and cell labeling. Here, we have prepared upconverting NaYF4:Yb,Er@NaYF4:Nd core-shell nanoparticles, which were coated with copolymers of N,N-dimethylacrylamide (DMA) and 2-(acryloylamino)-2-methylpropane-1-sulfonic acid (AMPS) or tert-butyl [2-(acryloylamino)ethyl]carbamate (AEC-Boc) with negative or positive charges, respectively. The copolymers were synthesized by a reversible addition-fragmentation chain transfer (RAFT) polymerization, reaching Mn ~ 11 kDa and containing ~ 5 mol% of reactive groups. All copolymers contained bisphosphonate end-groups to be firmly anchored on the surface of NaYF4:Yb,Er@NaYF4:Nd core-shell nanoparticles. To compare properties of polymer coatings, poly(ethylene glycol)-coated and neat UCNP were used as a control. UCNP with various charges were then studied as labels of carcinoma cells, including human hepatocellular carcinoma HepG2, human cervical cancer HeLa, and rat insulinoma INS-1E cells. All the particles proved to be biocompatible (nontoxic); depending on their ξ-potential, the ability to penetrate the cells differed. This ability together with the upconversion luminescence are basic prerequisites for application of particles in photodynamic therapy (PDT) of various tumors, where emission of nanoparticles in visible light range at ~ 650 nm excites photosensitizer.
Collapse
Affiliation(s)
- Viktoriia Oleksa
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 40, Prague 2, Czech Republic
| | - Hana Macková
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - Hana Engstová
- Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague 4, Czech Republic
| | - Vitalii Patsula
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - Oleksandr Shapoval
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - Nadiia Velychkivska
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - Petr Ježek
- Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague 4, Czech Republic
| | - Daniel Horák
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic.
| |
Collapse
|
3
|
Li S, Pang X, Zhao J, Zhang Q, Shan Y. Evaluating the single-molecule interactions between targeted peptides and the receptors on living cell membrane. NANOSCALE 2021; 13:17318-17324. [PMID: 34642724 DOI: 10.1039/d1nr05547j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As potential ligands, targeted peptides have become an important part in the construction of intelligent drug delivery systems (DDSs). The targeting interaction of peptides with receptors is a key point affecting the efficacy of targeted nano-drugs. Herein, three common peptides (HAIYPRH (T7), YHWYGYTPQNVI (GE11), and RGD) that have been widely used in cancer targeted therapy and tumor diagnostics, targeting the corresponding receptors (transferrin receptor (TfR), epidermal growth factor receptor (EGFR), and ανβ3 integrin receptor), were selected as examples to study the targeting interacton on living cell surface at the single-molecule level by using single-molecule force spectroscopy (SMFS) based on atomic force microscopy (AFM). The dissociation activation energy in the absence of an external force (ΔGβ,0) of T7-TfR, GE11-EGFR, and RGD-ανβ3 integrin is evaluated at single-molecule level. Among these three peptide-receptor pairs, the T7-TfR bond is the most stable with a smaller dissociation kinetic rate constant at zero force (Koff), larger kinetic on-rate constant (Kon), and shorter interaction time (τ). Furthermore, T7 can target TfR even more effectively on A549 cell membrane after treatment with drugs. Our methodology can also be applicable to the study of other ligand targeted DDSs.
Collapse
Affiliation(s)
- Siying Li
- School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
| | - Xuelei Pang
- School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China
| | - Jing Zhao
- School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China
| | - Qingrong Zhang
- School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China
| | - Yuping Shan
- School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China
| |
Collapse
|
4
|
Studenovský M, Rumlerová A, Kostka L, Etrych T. HPMA-Based Polymer Conjugates for Repurposed Drug Mebendazole and Other Imidazole-Based Therapeutics. Polymers (Basel) 2021; 13:polym13152530. [PMID: 34372133 PMCID: PMC8347626 DOI: 10.3390/polym13152530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/28/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022] Open
Abstract
Recently, the antitumor potential of benzimidazole anthelmintics, such as mebendazole and its analogues, have been reported to have minimal side effects, in addition to their well-known anti-parasitic abilities. However, their administration is strongly limited owing to their extremely poor solubility, which highly depletes their overall bioavailability. This study describes the design, synthesis, and physico-chemical properties of polymer-mebendazole nanomedicines for drug repurposing in cancer therapy. The conjugation of mebendazole to water-soluble and biocompatible polymer carrier was carried out via biodegradable bond, relying on the hydrolytic action of lysosomal hydrolases for mebendazole release inside the tumor cells. Five low-molecular-weight mebendazole derivatives, differing in their inner structure, and two polymer conjugates differing in their linker structure, were synthesized. The overall synthetic strategy was designed to enable the modification and polymer conjugation of most benzimidazole-based anthelmintics, such as albendazole, fenbendazole or albendazole, besides the mebendazole. Furthermore, the described methodology may be suitable for conjugation of other biologically active compounds with a heterocyclic N-H group in their molecules.
Collapse
|
5
|
Tavares MR, Bláhová M, Sedláková L, Elling L, Pelantová H, Konefał R, Etrych T, Křen V, Bojarová P, Chytil P. High-Affinity N-(2-Hydroxypropyl)methacrylamide Copolymers with Tailored N-Acetyllactosamine Presentation Discriminate between Galectins. Biomacromolecules 2020; 21:641-652. [PMID: 31904940 DOI: 10.1021/acs.biomac.9b01370] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
N-Acetyllactosamine (LacNAc; Galβ4GlcNAc) is a typical disaccharide ligand of galectins. The most abundant members of these human lectins, galectin-1 (Gal-1) and galectin-3 (Gal-3), participate in a number of pathologies including cancerogenesis and metastatic formation. In this study, we synthesized a series of fifteen N-(2-hydroxypropyl)methacrylamide (HPMA)-based glycopolymers with varying LacNAc amounts and presentations and evaluated the impact of their architecture on the binding affinity to Gal-1 and Gal-3. The controlled radical reversible addition-fragmentation chain transfer copolymerization technique afforded linear polymer precursors with comparable molecular weight (Mn ≈ 22,000 g mol-1) and narrow dispersity (D̵ ≈ 1.1). The precursors were conjugated with the functionalized LacNAc disaccharide (4-22 mol % content in glycopolymer) prepared by enzymatic synthesis under catalysis by β-galactosidase from Bacillus circulans. The structure-affinity relationship study based on the enzyme-linked immunosorbent assay revealed that the type of LacNAc presentation, individual or clustered on bi- or trivalent linkers, brings a clear discrimination (almost 300-fold) between Gal-1 and Gal-3, reaching avidity to Gal-1 in the nanomolar range. Whereas Gal-1 strongly preferred a dense presentation of individually distributed LacNAc epitopes, Gal-3 preferred a clustered LacNAc presentation. Such a strong galectin preference based just on the structure of a multivalent glycopolymer type is exceptional. The prepared nontoxic, nonimmunogenic, and biocompatible glycopolymers are prospective for therapeutic applications requiring selectivity for one particular galectin.
Collapse
Affiliation(s)
- Marina Rodrigues Tavares
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
| | - Markéta Bláhová
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
| | - Lieselotte Sedláková
- Institute of Microbiology , Czech Academy of Sciences , Vídeňská 1083 , CZ-142 20 Prague 4 , Czech Republic.,Department of Health Care Disciplines and Population Protection, Faculty of Biomedical Engineering , Czech Technical University in Prague , Sítná sq. 3105 , CZ-272 01 Kladno , Czech Republic
| | - Lothar Elling
- Institute of Biotechnology and Helmholtz Institute for Biomedical Engineering , RWTH Aachen , Pauwelstr. 20 , D-52079 Aachen , Germany
| | - Helena Pelantová
- Institute of Microbiology , Czech Academy of Sciences , Vídeňská 1083 , CZ-142 20 Prague 4 , Czech Republic
| | - Rafał Konefał
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
| | - Vladimír Křen
- Institute of Microbiology , Czech Academy of Sciences , Vídeňská 1083 , CZ-142 20 Prague 4 , Czech Republic
| | - Pavla Bojarová
- Institute of Microbiology , Czech Academy of Sciences , Vídeňská 1083 , CZ-142 20 Prague 4 , Czech Republic.,Department of Health Care Disciplines and Population Protection, Faculty of Biomedical Engineering , Czech Technical University in Prague , Sítná sq. 3105 , CZ-272 01 Kladno , Czech Republic
| | - Petr Chytil
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
| |
Collapse
|
6
|
Etrych T, Janoušková O, Chytil P. Fluorescence Imaging as a Tool in Preclinical Evaluation of Polymer-Based Nano-DDS Systems Intended for Cancer Treatment. Pharmaceutics 2019; 11:E471. [PMID: 31547308 PMCID: PMC6781319 DOI: 10.3390/pharmaceutics11090471] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/29/2019] [Accepted: 09/04/2019] [Indexed: 01/04/2023] Open
Abstract
Targeted drug delivery using nano-sized carrier systems with targeting functions to malignant and inflammatory tissue and tailored controlled drug release inside targeted tissues or cells has been and is still intensively studied. A detailed understanding of the correlation between the pharmacokinetic properties and structure of the nano-sized carrier is crucial for the successful transition of targeted drug delivery nanomedicines into clinical practice. In preclinical research in particular, fluorescence imaging has become one of the most commonly used powerful imaging tools. Increasing numbers of suitable fluorescent dyes that are excitable in the visible to near-infrared (NIR) wavelengths of the spectrum and the non-invasive nature of the method have significantly expanded the applicability of fluorescence imaging. This chapter summarizes non-invasive fluorescence-based imaging methods and discusses their potential advantages and limitations in the field of drug delivery, especially in anticancer therapy. This chapter focuses on fluorescent imaging from the cellular level up to the highly sophisticated three-dimensional imaging modality at a systemic level. Moreover, we describe the possibility for simultaneous treatment and imaging using fluorescence theranostics and the combination of different imaging techniques, e.g., fluorescence imaging with computed tomography.
Collapse
Affiliation(s)
- Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Petr Chytil
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| |
Collapse
|
7
|
Pola R, Parnica J, Zuska K, Böhmová E, Filipová M, Pechar M, Pankrác J, Mucksová J, Kalina J, Trefil P, Šefc L, Větvička D, Poučková P, Bouček J, Janoušková O, Etrych T. Oligopeptide-targeted polymer nanoprobes for fluorescence-guided endoscopic surgery. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/2399-7532/ab159e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
8
|
Zhao L, Kopylov M, Potter CS, Carragher B, Finn MG. Engineering the PP7 Virus Capsid as a Peptide Display Platform. ACS NANO 2019; 13:4443-4454. [PMID: 30912918 PMCID: PMC6991139 DOI: 10.1021/acsnano.8b09683] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
As self-assembling polyvalent nanoscale structures that can tolerate substantial genetic and chemical modification, virus-like particles are useful in a variety of fields. Here we describe the genetic modification and structural characterization of the Leviviridae PP7 capsid protein as a platform for the presentation of functional polypeptides. This particle was shown to tolerate the display of sequences from 1 kDa (a cell penetrating peptide) to 14 kDa (the Fc-binding double Z-domain) on its exterior surface as C-terminal genetic fusions to the coat protein. In addition, a dimeric construct allowed the presentation of exogenous loops between capsid monomers and the simultaneous presentation of two different peptides at different positions on the icosahedral structure. The PP7 particle is thereby significantly more tolerant of these types of polypeptide additions than Qβ and MS2, the other Leviviridae-derived VLPs in common use.
Collapse
Affiliation(s)
- Liangjun Zhao
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
| | - Mykhailo Kopylov
- National Resource for Automated Molecular Microscopy, Simons Electron Microscopy Center, New York Structural Biology Center, 89 Convent Avenue, New York, New York 10027, United States
| | - Clinton S. Potter
- National Resource for Automated Molecular Microscopy, Simons Electron Microscopy Center, New York Structural Biology Center, 89 Convent Avenue, New York, New York 10027, United States
| | - Bridget Carragher
- National Resource for Automated Molecular Microscopy, Simons Electron Microscopy Center, New York Structural Biology Center, 89 Convent Avenue, New York, New York 10027, United States
| | - M. G. Finn
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
- School of Biological Sciences, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
| |
Collapse
|
9
|
Abstract
A tumor-targeting drug delivery system consists of a tumor recognition moiety and a directly linked cytotoxic agent or an agent attached to a water-soluble synthetic polymer carrier through a suitable linker. Conjugation of a drug with a polymer carrier can change its solubility, toxicity, biodistribution, blood clearance and therapeutic specificity. Increased therapeutic specificity of a polymer drug can be achieved by the attachment of a targeting moiety (e.g. a lectin, protein, antibody, or peptide) that specifically interacts with receptors on the target cells. A large number of tumor-specific peptides were described in recent years. After a short introduction, some important examples of peptide-targeted conjugates will be described and discussed.
Collapse
Affiliation(s)
| | - R. POLA
- Department of Biomedicinal Polymers, Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| |
Collapse
|
10
|
Masood F. Polymeric nanoparticles for targeted drug delivery system for cancer therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 60:569-578. [DOI: 10.1016/j.msec.2015.11.067] [Citation(s) in RCA: 307] [Impact Index Per Article: 38.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 10/30/2015] [Accepted: 11/24/2015] [Indexed: 12/13/2022]
|
11
|
Fluorescence optical imaging in anticancer drug delivery. J Control Release 2016; 226:168-81. [PMID: 26892751 DOI: 10.1016/j.jconrel.2016.02.022] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 02/10/2016] [Accepted: 02/11/2016] [Indexed: 12/21/2022]
Abstract
In the past several decades, nanosized drug delivery systems with various targeting functions and controlled drug release capabilities inside targeted tissues or cells have been intensively studied. Understanding their pharmacokinetic properties is crucial for the successful transition of this research into clinical practice. Among others, fluorescence imaging has become one of the most commonly used imaging tools in pre-clinical research. The development of increasing numbers of suitable fluorescent dyes excitable in the visible to near-infrared wavelengths of the spectrum has significantly expanded the applicability of fluorescence imaging. This paper focuses on the potential applications and limitations of non-invasive imaging techniques in the field of drug delivery, especially in anticancer therapy. Fluorescent imaging at both the cellular and systemic levels is discussed in detail. Additionally, we explore the possibility for simultaneous treatment and imaging using theranostics and combinations of different imaging techniques, e.g., fluorescence imaging with computed tomography.
Collapse
|
12
|
Lee SJ, Shim YH, Oh JS, Jeong YI, Park IK, Lee HC. Folic-acid-conjugated pullulan/poly(DL-lactide-co-glycolide) graft copolymer nanoparticles for folate-receptor-mediated drug delivery. NANOSCALE RESEARCH LETTERS 2015; 10:43. [PMID: 25852340 PMCID: PMC4384989 DOI: 10.1186/s11671-014-0706-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 12/23/2014] [Indexed: 05/25/2023]
Abstract
BACKGROUND Nanoparticles have been extensively investigated for targeted delivery of anticancer drugs. Since the folate receptor is universally over-expressed on the tumor cell membrane, folic acid is often used to modify the fate of nanoparticles in biologicals. METHODS To fabricate targetable nanoparticles, folic acid was conjugated to a pullulan backbone and poly(DL-lactide-co-glycolide) (PLGA) (abbreviated as FAPuLG) was conjugated. KB cells and NIH3T3-cell-bearing mice were prepared to prove folate receptor targeting of FAPuLG nanoparticles. RESULTS AND DISCUSSION Nanoparticles of FAPuLG copolymer that self-assembled in water were small with diameters <200 nm. Doxorubicin (DOX) as a model drug was incorporated into the FAPuLG nanoparticles that were used to treat folate receptor over-expressing KB human carcinoma cells. Fluorescence microscopy revealed that DOX-incorporated FAPuLG nanoparticles induced strong red fluorescence in the KB cells in the absence of folic acid. However, fluorescence intensity was decreased by blocking folate receptors. Antitumor activity of FAPuLG nanoparticles against KB cells in vitro was also decreased by blocking folate receptors. In animal study using near-infrared dye-conjugated FAPuLG nanoparticles, fluorescence intensity was significantly higher at KB solid tumor than that of NIH3T3. CONCLUSIONS The results indicate that FAPuLG nanoparticles can target the folate receptor of tumor cells. FAPuLG nanoparticles are a promising candidate for active targeting of anticancer agents.
Collapse
Affiliation(s)
- Sang Joon Lee
- />Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju, 501-746 Korea
| | - Yong-Ho Shim
- />Biomedical Research Institute, Pusan National University Hospital, Pusan, 602-739 Republic of Korea
| | - Jong-Suk Oh
- />Department of Microbiology, Chonnam National University Medical School, Gwangju, 501-746 Korea
| | - Young-Il Jeong
- />Department of Microbiology, Chonnam National University Medical School, Gwangju, 501-746 Korea
| | - In-Kyu Park
- />Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju, 501-746 Korea
| | - Hyun Chul Lee
- />Department of Microbiology, Chonnam National University Medical School, Gwangju, 501-746 Korea
| |
Collapse
|
13
|
Limasale YDP, Tezcaner A, Özen C, Keskin D, Banerjee S. Epidermal growth factor receptor-targeted immunoliposomes for delivery of celecoxib to cancer cells. Int J Pharm 2015; 479:364-73. [PMID: 25595386 DOI: 10.1016/j.ijpharm.2015.01.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/07/2015] [Accepted: 01/10/2015] [Indexed: 12/14/2022]
Abstract
Cyclooxygenase-2 (COX-2) is highly expressed in many different cancers. Therefore, the inhibition of the COX-2 pathway by a selective COX-2 inhibitor, celecoxib (CLX), may be an alternative strategy for cancer prevention and therapy. Liposomal drug delivery systems can be used to increase the therapeutic efficacy of CLX while minimizing its side effects. Previous studies have reported the encapsulation of CLX within the non-targeted long circulating liposomes and functional effect of these formulations against colorectal cancer cell lines. However, the selectivity and internalization of CLX-loaded liposomes can further be improved by grafting targeting ligands on their surface. Cetuximab (anti-epidermal growth factor receptor - EGFR - monoclonal antibody) is a promising targeting ligand since EGFR is highly expressed in a wide range of solid tumors. The aim of this study was to develop EGFR-targeted immunoliposomes for enhancing the delivery of CLX to cancer cells and to evaluate the functional effects of these liposomes in cancer cell lines. EGFR-targeted ILs, having an average size of 120nm, could encapsulate 40% of the CLX, while providing a sustained drug release profile. Cell association studies have also shown that the immunoliposome uptake was higher in EGFR-overexpressing cells compared to the non-targeted liposomes. In addition, the CLX-loaded-anti-EGFR immunoliposomes were significantly more toxic compared to the non-targeted ones in cancer cells with EGFR-overexpression but not in the cells with low EGFR expression, regardless of their COX-2 expression status. Thus, selective targeting of CLX with anti-EGFR immunoliposomes appears to be a promising strategy for therapy of tumors that overexpress EGFR.
Collapse
Affiliation(s)
| | - Ayşen Tezcaner
- Department of Biotechnology, Middle East Technical University, Ankara 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara 06800, Turkey; BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara 06800, Turkey
| | - Can Özen
- Department of Biotechnology, Middle East Technical University, Ankara 06800, Turkey; BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara 06800, Turkey
| | - Dilek Keskin
- Department of Biotechnology, Middle East Technical University, Ankara 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara 06800, Turkey; BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara 06800, Turkey
| | - Sreeparna Banerjee
- Department of Biotechnology, Middle East Technical University, Ankara 06800, Turkey; Department of Biological Sciences, Middle East Technical University, Ankara 06800, Turkey.
| |
Collapse
|
14
|
Wang X, Li S, Shi Y, Chuan X, Li J, Zhong T, Zhang H, Dai W, He B, Zhang Q. The development of site-specific drug delivery nanocarriers based on receptor mediation. J Control Release 2014; 193:139-53. [DOI: 10.1016/j.jconrel.2014.05.028] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 05/13/2014] [Accepted: 05/17/2014] [Indexed: 01/28/2023]
|
15
|
Popwell SJ, Schulz MD, Wagener KB, Batich CD, Milner RJ, Lagmay J, Bolch WE. Synthesis of polymeric phosphonates for selective delivery of radionuclides to osteosarcoma. Cancer Biother Radiopharm 2014; 29:273-82. [PMID: 25111903 DOI: 10.1089/cbr.2014.1615] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Discussed in detail is the synthesis and primary structure characterization of two polymers aimed at advancing the treatment of pediatric osteosarcoma. These polymers are designed to systemically deliver radiometals specifically to osteosarcomas using the passive targeting mechanism of enhanced permeability and retention (the EPR effect). The approach begins with the synthesis of a polymer capable of binding radiometals, for which prior data show improved site-specific targeting of solid tumors. Building on this success, a second polymer has been designed for improving the efficacy of currently available radionuclide therapies by incorporating the FDA-approved small-molecule ligand Quadramet directly onto the polymer structure. Time-activity curves of the phosphonate-functionalized polymers show rapid clearance from the central compartment and nontargeted organs, with up to 65% of injected activity being excreted within 3 hours. Both polymer ligands demonstrate good osteosarcoma targeting capability with little to no uptake in organs associated with the dose-limiting bone marrow. Additionally, biodistribution studies in nonosseous tumor models demonstrate the tumor targeting mechanism of the polymer ligands, which appears to be influenced by the high affinity of the phosphonate functionality for the positively charged hydroxyapatite mineral found in bone tumors.
Collapse
Affiliation(s)
- Sam J Popwell
- 1 Department of Materials Science and Engineering, University of Florida , Gainesville, FL
| | | | | | | | | | | | | |
Collapse
|
16
|
Tucker BS, Sumerlin BS. Poly(N-(2-hydroxypropyl) methacrylamide)-based nanotherapeutics. Polym Chem 2014. [DOI: 10.1039/c3py01279d] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|