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Szota M, Szwedowicz U, Rembialkowska N, Janicka-Klos A, Doveiko D, Chen Y, Kulbacka J, Jachimska B. Dendrimer Platforms for Targeted Doxorubicin Delivery-Physicochemical Properties in Context of Biological Responses. Int J Mol Sci 2024; 25:7201. [PMID: 39000306 PMCID: PMC11241532 DOI: 10.3390/ijms25137201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/16/2024] Open
Abstract
The unique structure of G4.0 PAMAM dendrimers allows a drug to be enclosed in internal spaces or immobilized on the surface. In the conducted research, the conditions for the formation of the active G4.0 PAMAM complex with doxorubicin hydrochloride (DOX) were optimized. The physicochemical properties of the system were monitored using dynamic light scattering (DLS), circular dichroism (CD), and fluorescence spectroscopy. The Quartz Crystal Microbalance with Dissipation Monitoring (QCM-D) method was chosen to determine the preferential conditions for the complex formation. The highest binding efficiency of the drug to the cationic dendrimer was observed under basic conditions when the DOX molecule was deprotonated. The decrease in the zeta potential of the complex confirms that DOX immobilizes through electrostatic interaction with the carrier's surface amine groups. The binding constants were determined from the fluorescence quenching of the DOX molecule in the presence of G4.0 PAMAM. The two-fold way of binding doxorubicin in the structure of dendrimers was visible in the Isothermal calorimetry (ITC) isotherm. Fluorescence spectra and release curves identified the reversible binding of DOX to the nanocarrier. Among the selected cancer cells, the most promising anticancer activity of the G4.0-DOX complex was observed in A375 malignant melanoma cells. Moreover, the preferred intracellular location of the complexes concerning the free drug was found, which is essential from a therapeutic point of view.
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Affiliation(s)
- Magdalena Szota
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, 30-239 Cracow, Poland
| | - Urszula Szwedowicz
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Nina Rembialkowska
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Anna Janicka-Klos
- Department of Basic Chemistry, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Daniel Doveiko
- Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK
| | - Yu Chen
- Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Barbara Jachimska
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, 30-239 Cracow, Poland
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2
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Mutalik SP, Gaikwad SY, Fernandes G, More A, Kulkarni S, Fayaz SMA, Tupally K, Parekh HS, Kulkarni S, Mukherjee A, Mutalik S. Anti-CD4 antibody and dendrimeric peptide based targeted nano-liposomal dual drug formulation for the treatment of HIV infection. Life Sci 2023; 334:122226. [PMID: 37918627 DOI: 10.1016/j.lfs.2023.122226] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/20/2023] [Accepted: 10/29/2023] [Indexed: 11/04/2023]
Abstract
AIMS Development and characterization of LAM and DTG loaded liposomes conjugated anti-CD4 antibody and peptide dendrimer (PD2) to improve the therapeutic efficacy and to achieve targeted treatment for HIV infection. MAIN METHODS A 2-level full factorial design was used to optimize the preparation of dual drug loaded liposomes. Optimized dual drug loaded ligand conjugated liposomes were assessed for their cytotoxicity and cell internalization on TZM-bl cells. Anti-HIV efficiency of the dual drug loaded liposomes were screened for their inhibitory potential in TZM-bl cells and the activities were confirmed using Peripheral Blood Mononuclear Cells (PBMCs). KEY FINDINGS The particle size of the optimized dual drug-loaded liposomes was 133.7 ± 4.04 nm, and the spherical morphology of the liposomes was confirmed by TEM analysis. The entrapment efficiency was 34 ± 4.9 % and 54 ± 1.8 % for LAM and DTG, respectively, and a slower in vitro release of LAM and DTG was observed when entrapped into liposomes. The cytotoxicity of the dual drug loaded liposomes was similar to the cytotoxicity of free drug solutions. Conjugation of anti-CD4 antibody and PD2 did not significantly influence the cytotoxicity but it enhanced the uptake of liposomes into the cells. Conjugated dual drug loaded liposomes exhibited better HIV inhibition with lower IC50 values (0.0003 ± 0.0002 μg/mL) compared to their free drug solutions (0.002 ± 0.001 μg/mL). The liposomal formulations have shown similar activities in both screening and confirmatory cell-based assays. SIGNIFICANCE The results demonstrated the cell targeting ability of dual drug loaded liposomes conjugated with anti-CD4 antibody and peptide dendrimer. Conjugated liposomes also improved anti-HIV efficiency of LAM and DTG.
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Affiliation(s)
- Sadhana P Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Shraddha Y Gaikwad
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Pune 411026, Maharashtra, India
| | - Gasper Fernandes
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Ashwini More
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Pune 411026, Maharashtra, India
| | - Sanjay Kulkarni
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Shaik Mohammad Abdul Fayaz
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Karnaker Tupally
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Harendra S Parekh
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Smita Kulkarni
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Pune 411026, Maharashtra, India.
| | - Anupam Mukherjee
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Pune 411026, Maharashtra, India.
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
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3
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Royal Jelly Components Encapsulation in a Controlled Release System—Skin Functionality and Biochemical Activity for Skin Applications. Pharmaceuticals (Basel) 2022; 15:ph15080907. [PMID: 35893731 PMCID: PMC9332036 DOI: 10.3390/ph15080907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 02/06/2023] Open
Abstract
Royal jelly is a yellowish-white substance with a gel texture that is secreted from the hypopharyngeal and mandibular glands of young worker bees. It consists mainly of water (50–56%), proteins (18%), carbohydrates (15%), lipids (3–6%), minerals (1.5%), and vitamins, and has many beneficial properties such as antimicrobial, anti-inflammatory, anticancer, antioxidant, antidiabetic, immunomodulatory, and anti-aging. Royal jelly has been used since ancient times in traditional medicine, cosmetics and as a functional food due to its high nutritional value. The main bioactive substances are royalactin, and 10-hydroxy-2-decenoic acid (10-HDA). Other important bioactive molecules with antioxidant and photoprotective skin activity are polyphenols. However, they present difficulties in extraction and in use as they are unstable physicochemically, and a higher temperature causes color change and component degradation. In the present study, a new encapsulation and delivery system consisting of liposomes and cyclodextrins incorporating royal jelly has been developed. The new delivery system aims to the elimination of the stability disadvantages of royal jelly’s sensitive component 10-HDA, but also to the controlled release of its ingredients and, more particularly, 10-HDA, for an enhanced bioactivity in cosmeceutical applications.
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Kumar V, Khan I, Gupta U. Lipid-dendrimer nanohybrid system or dendrosomes: evidences of enhanced encapsulation, solubilization, cellular uptake and cytotoxicity of bortezomib. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01515-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Kareliotis G, Tremi I, Kaitatzi M, Drakaki E, Serafetinides AA, Makropoulou M, Georgakilas AG. Combined radiation strategies for novel and enhanced cancer treatment. Int J Radiat Biol 2020; 96:1087-1103. [PMID: 32602416 DOI: 10.1080/09553002.2020.1787544] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Numerous studies focus on cancer therapy worldwide, and although many advances have been recorded, the complexity of the disease dictates thinking out of the box to confront it. This study reviews some of the currently available ionizing (IR) and non-ionizing radiation (NIR)-based treatment methods and explores their possible combinations that lead to synergistic, multimodal approaches with promising therapeutic outcomes. Traditional techniques, like radiotherapy (RT) show decent results, although they cannot spare 100% the healthy tissues neighboring with the cancer ones. Targeted therapies, such as proton and photodynamic therapy (PT and PDT, respectively) present adequate outcomes, even though each one has its own drawbacks. To overcome these limitations, the combination of therapeutic modalities has been proposed and has already been showing promising results. At the same time, the recent advances in nanotechnology in the form of nanoparticles enhance cancer therapy, making multimodal treatments worthy of exploring and studying. The combination of RT and PDT has reached the level of clinical trials and is showing promising results. Moreover, in vitro and in vivo studies of nanoparticles with PDT have also provided beneficial results concerning enhanced radiation treatments. In any case, novel and multimodal approaches have to be adopted to achieve personalized, enhanced and effective cancer treatment.
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Affiliation(s)
- Georgios Kareliotis
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Athens, Greece
| | - Ioanna Tremi
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Athens, Greece
| | - Myrsini Kaitatzi
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Athens, Greece
| | - Eleni Drakaki
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Athens, Greece
| | - Alexandros A Serafetinides
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Athens, Greece
| | - Mersini Makropoulou
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Athens, Greece
| | - Alexandros G Georgakilas
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Athens, Greece
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6
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The Role of Branch Cell Symmetry and Other Critical Nanoscale Design Parameters in the Determination of Dendrimer Encapsulation Properties. Biomolecules 2020; 10:biom10040642. [PMID: 32326311 PMCID: PMC7226492 DOI: 10.3390/biom10040642] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/27/2020] [Accepted: 03/21/2020] [Indexed: 12/23/2022] Open
Abstract
This article reviews progress over the past three decades related to the role of dendrimer-based, branch cell symmetry in the development of advanced drug delivery systems, aqueous based compatibilizers/solubilizers/excipients and nano-metal cluster catalysts. Historically, it begins with early unreported work by the Tomalia Group (i.e., The Dow Chemical Co.) revealing that all known dendrimer family types may be divided into two major symmetry categories; namely: Category I: symmetrical branch cell dendrimers (e.g., Tomalia, Vögtle, Newkome-type dendrimers) possessing interior hollowness/porosity and Category II: asymmetrical branch cell dendrimers (e.g., Denkewalter-type) possessing no interior void space. These two branch cell symmetry features were shown to be pivotal in directing internal packing modes; thereby, differentiating key dendrimer properties such as densities, refractive indices and interior porosities. Furthermore, this discovery provided an explanation for unimolecular micelle encapsulation (UME) behavior observed exclusively for Category I, but not for Category II. This account surveys early experiments confirming the inextricable influence of dendrimer branch cell symmetry on interior packing properties, first examples of Category (I) based UME behavior, nuclear magnetic resonance (NMR) protocols for systematic encapsulation characterization, application of these principles to the solubilization of active approved drugs, engineering dendrimer critical nanoscale design parameters (CNDPs) for optimized properties and concluding with high optimism for the anticipated role of dendrimer-based solubilization principles in emerging new life science, drug delivery and nanomedical applications.
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7
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Rafiee Z, Nejatian M, Daeihamed M, Jafari SM. Application of different nanocarriers for encapsulation of curcumin. Crit Rev Food Sci Nutr 2018; 59:3468-3497. [DOI: 10.1080/10408398.2018.1495174] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Zahra Rafiee
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran
| | - Mohammad Nejatian
- Department of Food Science and Technology, Tarbiat Modares University, Tehran, Iran
| | - Marjan Daeihamed
- Department of Pharmaceutics, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran
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8
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Roy B, Guha P, Nahak P, Karmakar G, Maiti S, Mandal AK, Bykov AG, Akentiev AV, Noskov BA, Tsuchiya K, Torigoe K, Panda AK. Biophysical Correlates on the Composition, Functionality, and Structure of Dendrimer-Liposome Aggregates. ACS OMEGA 2018; 3:12235-12245. [PMID: 31459298 PMCID: PMC6645486 DOI: 10.1021/acsomega.8b01187] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 09/13/2018] [Indexed: 06/10/2023]
Abstract
Interaction between negatively charged liposomes and cationic polyamidoamine dendrimers of different generations was investigated through size, zeta potential, turbidity, electron microscopy, atomic force microscopy, fluorescence spectroscopy, and calorimetric studies. Liposomes with the binary combination of 1,2-dipalmitoyl-sn-glycero-3-phosphatidylcholine (DPPC) + dihexadecyl phosphate, DPPC + 1,2-dimyristoyl-sn-glycero-3-phosphoglycerol, DPPC + 1,2-dipalmitoyl-sn-glycero-3-phosphate, and DPPC + 1,2-dipalmitoyl-sn-glycero-3-phosphoethanol were stable up to 60 days. The electrostatic nature of dendrimer-lipid bilayer interaction was evidenced through charge neutralization and subsequent reversal upon added dendrimer to liposome. Dendrimer-liposome interaction depended on its generation (5 > 4 > 3) in addition to the charge, head groups, and hydrocarbon chain length of lipids. Fluorescence anisotropy and differential scanning calorimetry studies suggest the fluidization of the bilayer, although the surface rigidity was enhanced by the added dendrimers. Thermodynamic parameters of the interaction processes were evaluated by isothermal titration and differential scanning calorimetric studies. The binding processes were exothermic in nature. The enthalpy of transition of the chain melting of lipids decreased systematically with increasing dendrimer concentration and generation. Dendrimer-liposome aggregates were nontoxic to healthy human blood cell, suggesting the potential of such aggregates as drug delivery systems.
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Affiliation(s)
- Biplab Roy
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Pritam Guha
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Prasant Nahak
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Gourab Karmakar
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Souvik Maiti
- Proteomics
and Structural Biology Unit, CSIR-Institute
of Genomics and Integrative Biology, Mall Road, Delhi 110 007, India
| | - Amit Kumar Mandal
- Chemical
Biology Laboratory, Department of Sericulture, Raiganj University, Uttar Dinajpur 733134, West Bengal, India
| | - Alexey G. Bykov
- Department
of Colloid Chemistry, St. Petersburg State
University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - Alexander V. Akentiev
- Department
of Colloid Chemistry, St. Petersburg State
University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - Boris A. Noskov
- Department
of Colloid Chemistry, St. Petersburg State
University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - Koji Tsuchiya
- Department
of Pure and Applied Chemistry, Tokyo University
of Science, 2641 Yamazaki, Noda, Tokyo 278-8510, Japan
| | - Kanjiro Torigoe
- Department
of Pure and Applied Chemistry, Tokyo University
of Science, 2641 Yamazaki, Noda, Tokyo 278-8510, Japan
| | - Amiya Kumar Panda
- Department
of Chemistry and Chemical Technology, Vidyasagar
University, Midnapore 721102, West Bengal, India
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Abedi-Gaballu F, Dehghan G, Ghaffari M, Yekta R, Abbaspour-Ravasjani S, Baradaran B, Dolatabadi JEN, Hamblin MR. PAMAM dendrimers as efficient drug and gene delivery nanosystems for cancer therapy. APPLIED MATERIALS TODAY 2018; 12:177-190. [PMID: 30511014 PMCID: PMC6269116 DOI: 10.1016/j.apmt.2018.05.002] [Citation(s) in RCA: 248] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Drug delivery systems for cancer chemotherapy are employed to improve the effectiveness and decrease the side-effects of highly toxic drugs. Most chemotherapy agents have indiscriminate cytotoxicity that affects normal, as well as cancer cells. To overcome these problems, new more efficient nanosystems for drug delivery are increasingly being investigated. Polyamidoamine (PAMAM) dendrimers are an example of a versatile and reproducible type of nanocarrier that can be loaded with drugs, and modified by attaching target-specific ligands that recognize receptors that are over-expressed on cancer cells. PAMAM dendrimers with a high density of cationic charges display electrostatic interactions with nucleic acids (DNA, siRNA, miRNA, etc.), creating dendriplexes that can preserve the nucleic acids from degradation. Dendrimers are prepared by conducting several successive "generations" of synthetic reactions so their size can be easily controlled and they have good uniformity. Dendrimers are particularly well-suited to co-delivery applications (simultaneous delivery of drugs and/or genes). In the current review, we discuss dendrimer-based targeted delivery of drugs/genes and co-delivery systems mainly for cancer therapy.
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Affiliation(s)
- Fereydoon Abedi-Gaballu
- Immunology Research Center, 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
| | - Maryam Ghaffari
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Reza Yekta
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | - Behzad Baradaran
- Immunology 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
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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10
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Tawfik MA, Tadros MI, Mohamed MI. Polyamidoamine (PAMAM) dendrimers as potential release modulators and oral bioavailability enhancers of vardenafil hydrochloride. Pharm Dev Technol 2018; 24:293-302. [PMID: 29723110 DOI: 10.1080/10837450.2018.1472611] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Vardenafil hydrochloride (VAR) is an erectile dysfunction treating drug. VAR has a short elimination half-life (4-5 h) and suffers low oral bioavailability (15%). This work aimed to explore the dual potential of VAR-dendrimer complexes as drug release modulators and oral bioavailability enhancers. VAR-dendrimer complexes were prepared by solvent evaporation technique using four dendrimer generations (G4.5, G5, G5.5 and G6) at three concentrations (190 nM, 380 nM and 950 nM). The systems were evaluated for intermolecular interactions, particle size, zeta potential, drug entrapment efficiency percentages (EE%) and drug released percentages after 2 h (Q2h) and 24 h (Q24h). The results were statistically analyzed, and the system showing the highest desirability was selected for further pharmacokinetic studies in rabbits, in comparison to Levitra® tablets. The highest desirability (0.82) was achieved with D10 system comprising VAR (10 mg) and G6 (190 nM). It possessed small particle size (113.85 nm), low PDI (0.19), positive zeta potential (+21.53), high EE% (75.24%), promising Q2 h (41.45%) and Q24 h (74.05%). Compared to Levitra® tablets, the significantly (p < 0.01) delayed Tmax, prolonged MRT(0-∞) and higher relative bioavailability (3.7-fold) could clarify the dual potential of D10 as a sustained release system capable of enhancing VAR oral bioavailability.
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Affiliation(s)
- Mai Ahmed Tawfik
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Cairo , Egypt
| | - Mina Ibrahim Tadros
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Cairo , Egypt
| | - Magdy Ibrahim Mohamed
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Cairo , Egypt
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Abstract
This chapter reviews the use of dendronized systems as nanocarriers for the delivery of chemotherapeutic drugs. Dendronized systems include dendrimers prepared through convergent methods as well as other systems containing dendrons (e.g., polymers, nanoparticles, liposomes). The preparation of such systems is detailed, followed by the various conjugation techniques used for the transport of chemotherapeutic drugs and their specific delivery to tumor cells. In addition, the ability of dendronized systems to provide passive and active targeting to tumors is discussed. The efficacy of drug delivery using dendronized systems is also illustrated through specific examples of kinetic and biological studies. Finally, the newest trends in conjugation of the most common chemotherapeutics to dendronized systems are described. Overall, this chapter highlights dendronized systems as a way to improve the therapeutic efficiency of drugs for the treatment of cancer. All the recent developments in areas, such as biodegradable dendrimers, modifications to enhance biocompatibility, selectively cleavable drug conjugations, ligand-mediated targeting, and the potential for multifunctional properties, show promises for future advances in cancer therapy.
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12
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Raghav S, Painuli R, Kumar D. Multifunctional Nanomaterials for Multifaceted Applications in Biomedical Arena. INT J PHARMACOL 2017. [DOI: 10.3923/ijp.2017.890.906] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Chen J, Banaszak Holl MM. Dendrimer and dendrimer–conjugate protein complexes and protein coronas. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Dendrimers and dendrimer conjugates are widely employed for biological applications such as bio-imaging and drug delivery. Understanding the interaction between dendrimers and their biological environment is key to evaluating the efficacy and safety of these materials. Proteins can form an adsorbed layer, termed a “protein corona”, on dendrimers in either a non-specific or specific fashion. A tight-binding, non-exchangeable corona is defined as a “hard” corona, whereas a loosely bound, highly exchangeable corona is called a “soft” corona. Recent research indicates that small molecules conjugated to the polymer surface can induce protein structural change, leading to tighter protein–dendrimer binding and further protein aggregation. This “triggered” corona formation on dendrimer and dendrimer conjugates is reviewed and discussed along with the existing hard or soft corona model. This review describes the triggered corona model to further the understanding of protein corona formation.
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Affiliation(s)
- Junjie Chen
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mark M. Banaszak Holl
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
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14
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Li Z, Tan S, Li S, Shen Q, Wang K. Cancer drug delivery in the nano era: An overview and perspectives (Review). Oncol Rep 2017; 38:611-624. [PMID: 28627697 PMCID: PMC5562049 DOI: 10.3892/or.2017.5718] [Citation(s) in RCA: 229] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 05/29/2017] [Indexed: 12/12/2022] Open
Abstract
Nanomaterials are increasingly used as drug carriers for cancer therapy. Nanomaterials also appeal to researchers in the areas of cancer diagnosis and biomarker discovery. Several antitumor nanodrugs are currently being tested in preclinical and clinical trials and show promise in therapeutic and other settings. We review the development of nanomaterial drug carriers, including liposomes, polymer nanoparticles, dendritic polymers, and nanomicelles, for the diagnosis and treatment of various cancers. The prospects of nanomaterials as drug carriers for future clinical applications are also discussed.
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Affiliation(s)
- Zhen Li
- Department of Gastrointestinal and Hernia Surgery, Institute of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
- Kunming Digestive Disease Treatment Engineering Technology Center, Kunming, Yunnan, P.R. China
| | - Shirui Tan
- College of Agricultural Sciences, Yunnan University, Kunming, Yunnan, P.R. China
| | - Shuan Li
- Department of Gastrointestinal and Hernia Surgery, Institute of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
| | - Qiang Shen
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Kunhua Wang
- Department of Gastrointestinal and Hernia Surgery, Institute of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
- Kunming Digestive Disease Treatment Engineering Technology Center, Kunming, Yunnan, P.R. China
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15
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Kesharwani P, Gothwal A, Iyer AK, Jain K, Chourasia MK, Gupta U. Dendrimer nanohybrid carrier systems: an expanding horizon for targeted drug and gene delivery. Drug Discov Today 2017; 23:300-314. [PMID: 28697371 DOI: 10.1016/j.drudis.2017.06.009] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/30/2017] [Accepted: 06/28/2017] [Indexed: 12/21/2022]
Abstract
Highly controllable dendritic structural design means dendrimers are a leading carrier in drug delivery applications. Dendrimer- and other nanocarrier-based hybrid systems are an emerging platform in the field of drug delivery. This review is a compilation of increasing reports of dendrimer interactions, such as dendrimer-liposome, dendrimer-carbon-nanotube, among others, known as hybrid carriers. This should prompt entirely new research with promising results for these hybrid carriers. It is assumed that such emerging hybrid nanosystems - from combining two already-established drug delivery platforms - could lead the way for the development of newer delivery systems with multiple applicability for latent theranostic applications in the future.
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Affiliation(s)
- Prashant Kesharwani
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA.
| | - Avinash Gothwal
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer 305801, India
| | - Arun K Iyer
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA; Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Wayne State University, School of Medicine, Detroit, MI 48201, USA.
| | - Keerti Jain
- Faculty of Pharmacy, M. S. University of Baroda, Vadodara, India
| | - Manish K Chourasia
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Umesh Gupta
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer 305801, India.
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Zhang M, Jing S, Zhang J, Zhang J, Zang X, Qiao M, Zhao X, Hu H, Chen D. Intracellular release of PluronicL64 unimers into MCF-7/ADR cells to overcome multidrug resistance by surface-modified PAMAM. J Mater Chem B 2017; 5:3970-3981. [PMID: 32264258 DOI: 10.1039/c7tb00659d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Multidrug resistance (MDR) has been a major obstacle to tumor chemotherapy. Pluronic unimers have been reported to be promising copolymers to reverse MDR, and the intracellular delivery of Pluronic unimers is a problem worth thinking. To exert the excellent reversal effect of Pluronic unimers, DOX-loaded G4.0 PAMAM was modified with PluronicL64 via cis-aconitic acid as a pH-sensitive linkage (PCPAMAM/DOX), which could release DOX and Pluronic unimers into cytoplasm. The Pluronic-modified PAMAM (PCPAMAM) exhibited favorable biocompatibility and pH-sensitivity. PCPAMAM/DOX showed a nano-scale size and a sustained in vitro release profile. Compared with a control formulation, PCPAMAM/DOX showed a higher reversal effect on MCF-7/ADR cells and enhanced intracellular drug accumulation. The results of P-gp activity, subcellular distribution of PluronicL64, the ATP level and mitochondrial transmembrane potential all illustrated that free Pluronic unimers could be released by PCPAMAM functioning as reversal agents. In conclusion, PCPAMAM could be a promising vehicle to enhance DOX accumulation by overcoming MDR in MCF-7/ADR cells. This work also provided an effective method to deliver Pluronic unimers into MDR cells.
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Affiliation(s)
- Mengjun Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, P. R. China.
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Naeem S, Viswanathan G, Misran MB. Liposomes as colloidal nanovehicles: on the road to success in intravenous drug delivery. REV CHEM ENG 2017. [DOI: 10.1515/revce-2016-0018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
The advancement of research in colloidal systems has led to the increased application of this technology in more effective and targeted drug delivery. Nanotechnology enables control over functionality parameters and allows innovations in biodegradable, biocompatible, and stimuli-responsive delivery systems. The first closed bilayer phospholipid system, the liposome system, has been making steady progress over five decades of extensive research and has been efficient in achieving many desirable parameters such as remote drug loading, size-controlling measures, longer circulation half-lives, and triggered release. Liposome-mediated drug delivery has been successful in overcoming obstacles to cellular and tissue uptake of drugs with improved biodistribution in vitro and in vivo. These colloidal nanovehicles have moved on from a mere concept to clinical applications in various drug delivery systems for antifungal, antibiotic, and anticancer drugs.
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Affiliation(s)
- Sumaira Naeem
- Department of Chemistry , Faculty of Science, University of Malaya , 50603 Kuala Lumpur , Malaysia
- Department of Chemistry, Faculty of Science , University of Gujrat , Gujrat , Pakistan
| | - Geetha Viswanathan
- Department of Pharmacy , Faculty of Medicine Building, University of Malaya , 50603 Kuala Lumpur , Malaysia
| | - Misni Bin Misran
- Department of Chemistry , Faculty of Science, University of Malaya , 50603 Kuala Lumpur , Malaysia
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18
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Gardikis K, Signorelli M, Ferrario C, Schiraldi A, Fortina MG, Hatziantoniou S, Demetzos C, Fessas D. Microbial biosensors to monitor the encapsulation effectiveness of Doxorubicin in chimeric advanced Drug Delivery Nano Systems: A calorimetric approach. Int J Pharm 2016; 516:178-184. [PMID: 27845212 DOI: 10.1016/j.ijpharm.2016.11.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/09/2016] [Accepted: 11/10/2016] [Indexed: 10/20/2022]
Abstract
The release of the anticancer drug doxorubicin (DOX) incorporated in a new drug carrier, namely a chimeric nanosystem formed by liposomes and dendrimers, was studied following the influence of the drug on the growth kinetics of the Lactobacillus helveticus bacterium, that would mimic the intestinal microflora. The bacterial growth was followed at 37°C by means of Isothermal Titration Calorimetry (ITC) and the method was assessed to monitor the overall effect of the delivered drug obtaining simple objective parameters to define the encapsulation effectiveness of the system, discriminating dose effects even in cases of very low release. Traditional microbiological investigations and in vitro release tests were also performed in parallel for validation. The achieved results suggest that L. helveticus is an excellent candidate as biosensor to assess the sealing effectiveness of these DOX drug carriers through ITC investigations. This approach can be extended for quantitative comparison of drug delivery systems with the same drug inserted in other supramolecular bodies for quantitative comparison. The peculiar results for the DOX drug carrier system investigated, indicate also that, the use of hydrophilic dendrimers in this case, produce a high sealing effect that seems promising in terms of the intestinal flora protection.
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Affiliation(s)
- Konstantinos Gardikis
- Department of Pharmaceutical Technology, University of Athens, School of Pharmacy, Panepistimioupolis, Zografou, 15771, Athens, Greece
| | - Marco Signorelli
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Chiara Ferrario
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Alberto Schiraldi
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Maria Grazia Fortina
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Sophia Hatziantoniou
- Department of Pharmaceutical Technology, University of Athens, School of Pharmacy, Panepistimioupolis, Zografou, 15771, Athens, Greece
| | - Costas Demetzos
- Department of Pharmaceutical Technology, University of Athens, School of Pharmacy, Panepistimioupolis, Zografou, 15771, Athens, Greece
| | - Dimitrios Fessas
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy.
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Pippa N, Stellas D, Skandalis A, Pispas S, Demetzos C, Libera M, Marcinkowski A, Trzebicka B. Chimeric lipid/block copolymer nanovesicles: Physico-chemical and bio-compatibility evaluation. Eur J Pharm Biopharm 2016; 107:295-309. [DOI: 10.1016/j.ejpb.2016.08.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/01/2016] [Accepted: 08/03/2016] [Indexed: 12/29/2022]
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Sharma AK, Gothwal A, Kesharwani P, Alsaab H, Iyer AK, Gupta U. Dendrimer nanoarchitectures for cancer diagnosis and anticancer drug delivery. Drug Discov Today 2016; 22:314-326. [PMID: 27671487 DOI: 10.1016/j.drudis.2016.09.013] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 07/20/2016] [Accepted: 09/16/2016] [Indexed: 12/14/2022]
Abstract
Dendrimers are novel nanoarchitectures with unique properties including a globular 3D shape, a monodispersed unimicellar nature and a nanometric size range. The availability of multiple peripheral functional groups and tunable surface engineering enable the facile modification of the dendrimer surface with different therapeutic drugs, diagnostic agents and targeting ligands. Drug encapsulation, and solubilizing and passive targeting also equally contribute to the therapeutic use of dendrimers. In this review, we highlight recent advances in the delivery of anticancer drugs using dendrimers, as well as other biomedical and diagnostic applications. Taken together, the immense potential and utility of dendrimers are envisaged to have a significant positive impact on the growing arena of drug delivery and targeting.
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Affiliation(s)
- Ashok Kumar Sharma
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Avinash Gothwal
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Prashant Kesharwani
- Department of Pharmaceutical Technology, School of Pharmacy, The International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, Kuala Lumpur 57000, Malaysia.
| | - Hashem Alsaab
- Use-Inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Ave, Detroit, MI 48201, USA
| | - Arun K Iyer
- Use-Inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Ave, Detroit, MI 48201, USA; Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Wayne State University, School of Medicine, Detroit, MI 48201, USA.
| | - Umesh Gupta
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan 305817, India.
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21
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Liu Y, Ng Y, Toh MR, Chiu GNC. Lipid-dendrimer hybrid nanosystem as a novel delivery system for paclitaxel to treat ovarian cancer. J Control Release 2015; 220:438-446. [PMID: 26551345 DOI: 10.1016/j.jconrel.2015.11.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 10/27/2015] [Accepted: 11/05/2015] [Indexed: 12/18/2022]
Abstract
Combining lipids and dendrimers into one formulation is an emerging platform in the drug delivery field. This study aims to (i) develop and characterize a lipid-dendrimer hybrid (LDH) nanosystem for the hydrophobic anticancer drug paclitaxel, and (ii) evaluate its in vitro and in vivo anti-cancer activity in ovarian cancer models. The LDH nanosystems were prepared from 1,2-dipalmitoyl-sn-glycero-3-phosphocholine and poly (amidoamine) (PAMAM) G4.0. The size and zeta potential of the LDH nanosystem were 37.6 ± 6.1n m and +2.9 ± 0.1 mV, respectively, with vesicular morphology observed under cryo-TEM. The encapsulation efficiency of paclitaxel in the LDH system was 78.0 ± 2.1%. The potency of paclitaxel could be significantly improved by 37-fold when presented in the LDH nanosystem as compared to free drug, whereby paclitaxel and PAMAM G4.0 acted synergistically in killing the ovarian cancer cells. As shown by fluorescence confocal microscopy, majority of the lipids in the LDH nanosystem were located in the plasma membrane, while the dendrimers were distributed intracellularly upon uptake. Despite the use of a 10-fold lower paclitaxel dose, the survival of IGROV-1 ovarian tumor-bearing animals could be significantly prolonged by the paclitaxel-loaded LDH nanosystem, as reflected by a 50% increase in the median survival time. Such hybrid nanosystem emerged from combining two established drug delivery platforms could pave way for the development of multifunctional delivery systems for potential theranostic applications.
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Affiliation(s)
- Yuanjie Liu
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Yiwei Ng
- 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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22
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Bielski ER, Zhong Q, Brown M, da Rocha SRP. Effect of the Conjugation Density of Triphenylphosphonium Cation on the Mitochondrial Targeting of Poly(amidoamine) Dendrimers. Mol Pharm 2015; 12:3043-53. [PMID: 26158804 DOI: 10.1021/acs.molpharmaceut.5b00320] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Many clinically relevant diseases with known poor therapeutic outcomes, including cancer and neurodegenerative disorders, have been directly linked to mitochondrial dysfunction. The ability to efficiently target therapeutics to intracellular organelles such as mitochondria may represent new opportunities for the effective treatment of such ailments. The present study reports the synthesis, cellular uptake, cytotoxicity, and mitochondrial colocalization of conjugates of triphenylphosphonium cation (TPP) to amine-terminated, generation 4, poly(amidoamine) (PAMAM) dendrimer (G4NH2) nanocarriers. The mitochondrial-targeting moiety TPP was either directly conjugated to G4NH2 (G4NH2-TPP) or to the dendrimer through a flexible polyethylene glycol (PEG) linker (G4NH2-PEGTPP). Conjugation was done at various TPP densities to assess their biological activity and potential for mitochondrial-targeted drug delivery. Tests in an in vitro model of the human alveolar carcinoma (A549 cells) showed that even at a low TPP density (∼5 TPP) both the cellular internalization and mitochondrial targeting increase significantly, as determined by fluorescence activated cell sorting (FACS) and confocal microscopy (CM), respectively. At a density of ∼10 TPP per G4NH2, further increase in cellular internalization and mitochondrial targeting was achieved. However, at this higher density, the nanocarriers also showed pronounced cytotoxicity. It was observed that the toxicity of the conjugates is decreased upon the addition of a PEG linker between the dendrimer and TPP (G4NH2-PEGTPP), while the mitochondrial targeting ability of the nanocarriers is not affected as the PEG density increases. The proposed strategies indicate that TPP-conjugated G4NH2 dendrimers represent a potentially viable strategy for the targeting of therapeutic molecules to mitochondria, which may help improve therapeutic outcomes of diseases related to mitochondrial dysfunction.
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Affiliation(s)
- Elizabeth R Bielski
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
| | - Qian Zhong
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
| | - Matthew Brown
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
| | - Sandro R P da Rocha
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
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Somani S, Dufès C. Applications of dendrimers for brain delivery and cancer therapy. Nanomedicine (Lond) 2015; 9:2403-14. [PMID: 25413857 DOI: 10.2217/nnm.14.130] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Dendrimers are emerging as potential nonviral vectors for the efficient delivery of drugs and nucleic acids to the brain and cancer cells. These polymers are highly branched, 3D macromolecules with modifiable surface functionalities and available internal cavities that make them attractive as delivery systems for drug and gene delivery applications. This article highlights the recent therapeutic advances resulting from the use of dendrimers for brain targeting and cancer treatment.
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Affiliation(s)
- Sukrut Somani
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK
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24
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Qi R, Li YZ, Chen C, Cao YN, Yu MM, Xu L, He B, Jie X, Shen WW, Wang YN, van Dongen MA, Liu GQ, Banaszak Holl MM, Zhang Q, Ke X. G5-PEG PAMAM dendrimer incorporating nanostructured lipid carriers enhance oral bioavailability and plasma lipid-lowering effect of probucol. J Control Release 2015; 210:160-8. [DOI: 10.1016/j.jconrel.2015.05.281] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 04/08/2015] [Accepted: 05/20/2015] [Indexed: 12/30/2022]
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G5 PAMAM dendrimer versus liposome: a comparison study on the in vitro transepithelial transport and in vivo oral absorption of simvastatin. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1141-51. [PMID: 25791813 DOI: 10.1016/j.nano.2015.02.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 02/10/2015] [Accepted: 02/14/2015] [Indexed: 01/31/2023]
Abstract
UNLABELLED This study compared formulation effects of a dendrimer and a liposome preparation on the water solubility, transepithelial transport, and oral bioavailability of simvastatin (SMV). Amine-terminated G5 PAMAM dendrimer (G5-NH2) was chosen to form SMV/G5-NH2 molecular complexes, and SMV-liposomes were prepared by using a thin film dispersion method. The effects of these preparations on the transepithelial transport were investigated in vitro using Caco-2 cell monolayers. Results indicated that the solubility and transepithelial transport of SMV were significantly improved by both formulations. Pharmacokinetic studies in rats also revealed that both the SMV/G5-NH2 molecular complexes and the SMV-liposomes significantly improved the oral bioavailability of SMV with the liposomes being more effective than the G5-NH2. The overall better oral absorption of SMV-liposomes as compared to SMV/G5-NH2 molecular complexes appeared to arise from better liposomal solubilization and encapsulation of SMV and more efficient intracellular SMV delivery. FROM THE CLINICAL EDITOR Various carrier systems have been designed to enhance drug delivery via the oral route. In this study, the authors compared G5 PAMAM dendrimers to liposome preparations in terms of solubility, transepithelial transport, and oral bioavailability of this poorly water-soluble drug. This understanding has improved our knowledge in the further development of drug carrier systems.
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Ma Q, Han Y, Chen C, Cao Y, Wang S, Shen W, Zhang H, Li Y, van Dongen MA, He B, Yu M, Xu L, Banaszak Holl MM, Liu G, Zhang Q, Qi R. Oral absorption enhancement of probucol by PEGylated G5 PAMAM dendrimer modified nanoliposomes. Mol Pharm 2015; 12:665-74. [PMID: 25587935 DOI: 10.1021/mp500388m] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Probucol (PB), an antioxidant drug, is commonly used as a lipid concentration lowering drug to reduce blood plasma cholesterol levels in the clinic. However, the therapeutic effects of this drug are negatively impacted by its poor water solubility and low oral absorption efficiency. In this study, a PEGylated G5 PAMAM dendrimer (G5-PEG) modified nanoliposome was employed to increase water solubility, transepithelial transport, and oral absorption of PB. The uptake mechanism was explored in vitro in Caco-2 cells with the results suggesting that the absorption improvement of G5-PEG modified PB-liposome (PB-liposome/G5-PEG) was related to P-glycoprotein (P-gp) efflux pump but was independent of caveolae endocytosis pathways. Additionally, plasma lipid concentration lowering effects of PB-liposome/G5-PEG were evaluated in vivo in a LDLR-/- hyperlipidemia mouse model. Compared with saline treated group, treatment with PB-liposome/G5-PEG significantly inhibited the increase of plasma total cholesterol (TC) and triglyceride (TG) of mice induced by a high fat diet. Moreover, its lipid concentration lowering effects and plasma drug concentration were greater than PB alone or commercial PB tablets. Our results demonstrated that PB-liposome/G5-PEG significantly increased the oral absorption of PB and therefore significantly improved its pharmacodynamic effects.
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Affiliation(s)
- Qian Ma
- Peking University Institute of Cardiovascular Sciences, Peking University Health Science Center, Peking University , Beijing 100191, China
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Kalhapure RS, Suleman N, Mocktar C, Seedat N, Govender T. Nanoengineered drug delivery systems for enhancing antibiotic therapy. J Pharm Sci 2014; 104:872-905. [PMID: 25546108 DOI: 10.1002/jps.24298] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 11/07/2014] [Accepted: 11/07/2014] [Indexed: 12/12/2022]
Abstract
Formulation scientists are recognizing nanoengineered drug delivery systems as an effective strategy to overcome limitations associated with antibiotic drug therapy. Antibiotics encapsulated into nanodelivery systems will contribute to improved management of patients with various infectious diseases and to overcoming the serious global burden of antibiotic resistance. An extensive review of several antibiotic-loaded nanocarriers that have been formulated to target drugs to infectious sites, achieve controlled drug release profiles, and address formulation challenges, such as low-drug entrapment efficiencies, poor solubility and stability is presented in this paper. The physicochemical properties and the in vitro/in vivo performances of various antibiotic-loaded delivery systems, such as polymeric nanoparticles, micelles, dendrimers, liposomes, solid lipid nanoparticles, lipid-polymer hybrid nanoparticles, nanohybirds, nanofibers/scaffolds, nanosheets, nanoplexes, and nanotubes/horn/rods and nanoemulsions, are highlighted and evaluated. Future studies that will be essential to optimize formulation and commercialization of these antibiotic-loaded nanosystems are also identified. The review presented emphasizes the significant formulation progress achieved and potential that novel nanoengineered antibiotic drug delivery systems have for enhancing the treatment of patients with a range of infections.
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Affiliation(s)
- Rahul S Kalhapure
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa
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Demetzos C, Pippa N. Fractal analysis as a complementary approach to predict the stability of drug delivery nano systems in aqueous and biological media: A regulatory proposal or a dream? Int J Pharm 2014; 473:213-8. [DOI: 10.1016/j.ijpharm.2014.07.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 06/27/2014] [Accepted: 07/08/2014] [Indexed: 02/02/2023]
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Xu L, Zolotarskaya OY, Yeudall WA, Yang H. Click hybridization of immune cells and polyamidoamine dendrimers. Adv Healthc Mater 2014; 3:1430-8. [PMID: 24574321 DOI: 10.1002/adhm.201300515] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 01/25/2014] [Indexed: 11/06/2022]
Abstract
Immobilizing highly branched polyamidoamine (PAMAM) dendrimers to the cell surface represents an innovative method of enhancing cell surface loading capacity to deliver therapeutic and imaging agents. In this work, hybridized immune cells, that is, macrophage RAW264.7 (RAW), with PAMAM dendrimer G4.0 (DEN) on the basis of bioorthogonal chemistry are clicked. Efficient and selective cell surface immobilization of dendrimers is confirmed by confocal microscopy. Viability and motility of RAW-DEN hybrids remain the same as untreated RAW cells according to WST-1 assay and wound closure assay. Furthermore, Western blot analysis reveals that there are no significant alterations in the expression levels of signaling molecules AKT, p38, and NFκB (p65) and their corresponding activated (phosphorylated) forms in RAW cells treated with azido sugar and dendrimer, indicating that the hybridization process neither induced cell stress response nor altered normal signaling pathways. Taken together, this work shows the feasibility of applying bioorthogonal chemistry to create cell-nanoparticle hybrids and demonstrates the noninvasiveness of this cell surface engineering approach.
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Affiliation(s)
- Leyuan Xu
- Department of Biomedical Engineering; Virginia Commonwealth University; Richmond VA 23284 USA
| | - Olga Yu. Zolotarskaya
- Department of Biomedical Engineering; Virginia Commonwealth University; Richmond VA 23284 USA
| | - W. Andrew Yeudall
- Philips Institute of Oral and Craniofacial Molecular Biology; Virginia Commonwealth University; Richmond VA 23298 USA
- Massey Cancer Center; Virginia Commonwealth University; Richmond VA 23298 USA
| | - Hu Yang
- Department of Biomedical Engineering; Virginia Commonwealth University; Richmond VA 23284 USA
- Massey Cancer Center; Virginia Commonwealth University; Richmond VA 23298 USA
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Madaan K, Kumar S, Poonia N, Lather V, Pandita D. Dendrimers in drug delivery and targeting: Drug-dendrimer interactions and toxicity issues. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2014; 6:139-50. [PMID: 25035633 PMCID: PMC4097927 DOI: 10.4103/0975-7406.130965] [Citation(s) in RCA: 330] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 09/29/2013] [Accepted: 11/14/2013] [Indexed: 11/16/2022] Open
Abstract
Dendrimers are the emerging polymeric architectures that are known for their defined structures, versatility in drug delivery and high functionality whose properties resemble with biomolecules. These nanostructured macromolecules have shown their potential abilities in entrapping and/or conjugating the high molecular weight hydrophilic/hydrophobic entities by host-guest interactions and covalent bonding (prodrug approach) respectively. Moreover, high ratio of surface groups to molecular volume has made them a promising synthetic vector for gene delivery. Owing to these properties dendrimers have fascinated the researchers in the development of new drug carriers and they have been implicated in many therapeutic and biomedical applications. Despite of their extensive applications, their use in biological systems is limited due to toxicity issues associated with them. Considering this, the present review has focused on the different strategies of their synthesis, drug delivery and targeting, gene delivery and other biomedical applications, interactions involved in formation of drug-dendrimer complex along with characterization techniques employed for their evaluation, toxicity problems and associated approaches to alleviate their inherent toxicity.
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Affiliation(s)
- Kanika Madaan
- Department of Pharmaceutics, J. C. D. M. College of Pharmacy, Sirsa, Haryana, India
| | - Sandeep Kumar
- Department of Pharmaceutics, J. C. D. M. College of Pharmacy, Sirsa, Haryana, India
| | - Neelam Poonia
- Department of Pharmaceutics, J. C. D. M. College of Pharmacy, Sirsa, Haryana, India
| | - Viney Lather
- Department of Pharmaceutical Chemistry, J. C. D. M. College of Pharmacy, Sirsa, Haryana, India
| | - Deepti Pandita
- Department of Pharmaceutics, J. C. D. M. College of Pharmacy, Sirsa, Haryana, India
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Evans KO, Laszlo JA, Compton DL. Carboxyl-terminated PAMAM dendrimer interaction with 1-palmitoyl-2-oleoyl phosphocholine bilayers. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1838:445-55. [DOI: 10.1016/j.bbamem.2013.08.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 08/14/2013] [Accepted: 08/16/2013] [Indexed: 12/21/2022]
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Kalhapure RS, Kathiravan MK, Akamanchi KG, Govender T. Dendrimers - from organic synthesis to pharmaceutical applications: an update. Pharm Dev Technol 2013; 20:22-40. [PMID: 24299011 DOI: 10.3109/10837450.2013.862264] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Dendrimers are a relatively new class of monodisperse polymers, which have tree-like spherical structures with well-defined sizes and shapes. Their unique structure has a significant impact on their physical and chemical properties. Research on dendrimers is of significant interest to scientists from all areas and their utility in various scientific fields, including pharmaceuticals, is expanding. The present review is comprehensive and covers different aspects of dendrimers viz. (1) synthesis, (2) properties and (3) pharmaceutical applications. The emphasis is on their applications as well as the current ongoing research status for drug targeting.
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Affiliation(s)
- Rahul S Kalhapure
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal , Durban , South Africa and
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34
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Pippa N, Dokoumetzidis A, Demetzos C, Macheras P. On the ubiquitous presence of fractals and fractal concepts in pharmaceutical sciences: A review. Int J Pharm 2013; 456:340-52. [DOI: 10.1016/j.ijpharm.2013.08.087] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 08/26/2013] [Accepted: 08/28/2013] [Indexed: 11/27/2022]
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Abstract
Significant progress has been made in nanoscale drugs and delivery systems employing diverse chemical formulations to facilitate the rate of drug delivery and to improve its pharmacokinetics. Biocompatible nanomaterials have been used as biological markers, contrast agents for imaging, healthcare products, pharmaceuticals, drug-delivery systems as well as in detection, diagnosis and treatment of various types of diseases. The classification of drug delivery nanosystems (DDnSs) is a crucial issue and fundamental efforts on this subject are missing from the literature. This article deals with the classification of DDnSs with a modulatory controlled release profile (MCR) denoted as modulatory controlled release nanosystems (MCRnSs). Conventional (c) and advanced (a) DDnSs are denoted by the acronyms cDDnSs and aDDnSs, and can be composed of a single or more than one biomaterials, respectively. The classification was based on their characteristics such as: surface functionality (f), the nature of biomaterials used and the kind of interactions between biomaterials. The aDDnSs can be classified as hybridic (Hy-) or chimeric (Chi-) based on the nature - same or different respectively - of biomaterials and inorganic materials used. The nature of the elements used for producing advanced biomaterials is of great importance and medicinal chemistry contributes effectively to the production of aDDnSs.
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Affiliation(s)
- Costas Demetzos
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Panepistimioupolis Zografou, University of Athens , Athens , Greece
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Rouhollah K, Pelin M, Serap Y, Gozde U, Ufuk G. Doxorubicin Loading, Release, and Stability of Polyamidoamine Dendrimer-Coated Magnetic Nanoparticles. J Pharm Sci 2013; 102:1825-1835. [DOI: 10.1002/jps.23524] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 02/13/2013] [Accepted: 03/06/2013] [Indexed: 11/10/2022]
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Zhang Z, Li Z, Yu W, Li K, Xie Z, Shi Z. Propulsion of liposomes using bacterial motors. NANOTECHNOLOGY 2013; 24:185103. [PMID: 23579252 DOI: 10.1088/0957-4484/24/18/185103] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Here we describe the utilization of flagellated bacteria as actuators to propel spherical liposomes by attaching bacteria to the liposome surface. Bacteria were stably attached to liposomes using a cross-linking antibody. The effect of the number of attached bacteria on propulsion speed was experimentally determined. The effects of bacterial propulsion on the bacteria-antibody-liposome complex were stochastic. We demonstrated that liposomal mobility increased when bacteria were attached, and the propulsion speed correlated with the number of bacteria.
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Affiliation(s)
- Zhenhai Zhang
- School of Mechatronics Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
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38
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Pushechnikov A, Jalisatgi SS, Hawthorne MF. Dendritic closomers: novel spherical hybrid dendrimers. Chem Commun (Camb) 2013; 49:3579-81. [DOI: 10.1039/c3cc40597d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Spyratou E, Makropoulou M, Mourelatou E, Demetzos C. Biophotonic techniques for manipulation and characterization of drug delivery nanosystems in cancer therapy. Cancer Lett 2012; 327:111-22. [DOI: 10.1016/j.canlet.2011.12.039] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 12/21/2011] [Accepted: 12/24/2011] [Indexed: 12/20/2022]
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Borowska K, Wołowiec S, Głowniak K, Sieniawska E, Radej S. Transdermal delivery of 8-methoxypsoralene mediated by polyamidoamine dendrimer G2.5 and G3.5--in vitro and in vivo study. Int J Pharm 2012; 436:764-70. [PMID: 22884834 DOI: 10.1016/j.ijpharm.2012.07.067] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 07/27/2012] [Accepted: 07/29/2012] [Indexed: 11/19/2022]
Abstract
In this work, we have focused on 8-methoxypsoralene (8-MOP) complexed with G2.5 and G3.5 poly(amido amine) (PAMAM) dendrimers. The purpose of this study was to investigate the efficacy of half-generation G2.5 and G3.5 PAMAM dendrimers conjugated with 8-MOP for delivery of 8-MOP in vitro study through polivinyldifluoride membrane (PVDE) and prepared pig ear skin (PES) using Franz diffusion and in vivo study through the skin of experimental animals (hairless rat skin). The tissue concentration of 8-MOP in hairless rat skin was analyzed by high performance liquid chromatography (HPLC) after 1 and 2 h. Detailed distribution of 8-MOP in skin layers and cellular structures were analyzed using laser scanning microscopy (CLSM). In vitro and in vivo studies showed that half-generation G2.5 and G3.5 PAMAM dendrimers are able to facilitate transdermal delivery of 8-MOP. G2.5 PAMAM dendrimer appeared to be more effective 8-MOP penetration enhancer than G3.5 PAMAM dendrimer, but in vivo the differences are not statistically significant. The concept of using G2.5 and G3.5 PAMAM dendrimers as carriers seems to be a promising method for the delivery of 8-MOP for PUVA (psoralen-UV-A) therapy.
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Affiliation(s)
- Katarzyna Borowska
- Department of Cosmetology, University of Information Technology and Management In Rzeszów, 2 Sucharskiego Str., 35-325 Rzeszów, Poland.
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Rahman M, Ahmad MZ, Kazmi I, Akhter S, Afzal M, Gupta G, Jalees Ahmed F, Anwar F. Advancement in multifunctional nanoparticles for the effective treatment of cancer. Expert Opin Drug Deliv 2012; 9:367-81. [PMID: 22400808 DOI: 10.1517/17425247.2012.668522] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Nanotechnology has gained wider importance for the treatment of various diseases, including cancer. Multifunctional or theranostic agents are emerging as promising therapeutic paradigms, which provide attractive vehicles for both image and therapeutic agents. Nanosystems are capable of diagnosis, specific targeted drug therapy and monitoring therapeutic response. Due to their well-developed surface nature, nanomolecules are easy to anchor with multifunctional groups. AREAS COVERED The present review aims to give an extensive account on the progress of multifunctional nanoparticles throughout the blooming research with regards to their clinical application in cancer. This paper discusses graphene, a newly developed multifunctional vehicle in nanotechnology. Furthermore, it focuses on the development of tumor cells, the advantages of novel multifunctional nanoparticles over traditional methods and the use of nanoparticles in cancer therapy. In addition, patents issued by the US office are also included. EXPERT OPINION Despite numerous advantages, multifunctional nanoparticles are still at an infancy stage. Many great achievements have been attained in this field to date, but many challenges still remain. A problem that limits the use of multifunctional nanoparticles is toxicity. If this toxicity can be overcome then the advancement in nanocomposite material science will be well on the way to a prospective treatment of cancer.
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Chimeric advanced drug delivery nano systems (chi-aDDnSs) for shikonin combining dendritic and liposomal technology. Int J Pharm 2012; 422:381-9. [DOI: 10.1016/j.ijpharm.2011.09.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 09/19/2011] [Accepted: 09/21/2011] [Indexed: 12/19/2022]
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Chang Y, Liu N, Chen L, Meng X, Liu Y, Li Y, Wang J. Synthesis and characterization of DOX-conjugated dendrimer-modified magnetic iron oxide conjugates for magnetic resonance imaging, targeting, and drug delivery. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16792a] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chang Y, Meng X, Zhao Y, Li K, Zhao B, Zhu M, Li Y, Chen X, Wang J. Novel water-soluble and pH-responsive anticancer drug nanocarriers: Doxorubicin–PAMAM dendrimer conjugates attached to superparamagnetic iron oxide nanoparticles (IONPs). J Colloid Interface Sci 2011; 363:403-9. [DOI: 10.1016/j.jcis.2011.06.086] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 06/28/2011] [Accepted: 06/29/2011] [Indexed: 11/24/2022]
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Tassano MR, Audicio PF, Gambini JP, Fernandez M, Damian JP, Moreno M, Chabalgoity JA, Alonso O, Benech JC, Cabral P. Development of 99mTc(CO)3-dendrimer-FITC for cancer imaging. Bioorg Med Chem Lett 2011; 21:5598-601. [DOI: 10.1016/j.bmcl.2011.06.079] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 06/15/2011] [Accepted: 06/17/2011] [Indexed: 01/31/2023]
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Filipowicz A, Wołowiec S. Solubility and in vitro transdermal diffusion of riboflavin assisted by PAMAM dendrimers. Int J Pharm 2011; 408:152-6. [DOI: 10.1016/j.ijpharm.2011.01.033] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 01/14/2011] [Accepted: 01/18/2011] [Indexed: 10/18/2022]
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Liu D, Hu H, Zhang J, Zhao X, Tang X, Chen D. Drug pH-Sensitive Release in Vitro and Targeting Ability of Polyamidoamine Dendrimer Complexes for Tumor Cells. Chem Pharm Bull (Tokyo) 2011; 59:63-71. [DOI: 10.1248/cpb.59.63] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Dan Liu
- School of Pharmacy, Shenyang Pharmaceutical University
| | - Haiyang Hu
- School of Pharmacy, Shenyang Pharmaceutical University
| | - Jie Zhang
- School of Pharmacy, Shenyang Pharmaceutical University
| | - Xiuli Zhao
- School of Pharmacy, Shenyang Pharmaceutical University
| | - Xing Tang
- School of Pharmacy, Shenyang Pharmaceutical University
| | - Dawei Chen
- School of Pharmacy, Shenyang Pharmaceutical University
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Gardikis K, Hatziantoniou S, Signorelli M, Pusceddu M, Micha-Screttas M, Schiraldi A, Demetzos C, Fessas D. Thermodynamic and structural characterization of Liposomal-Locked in-Dendrimers as drug carriers. Colloids Surf B Biointerfaces 2010; 81:11-9. [DOI: 10.1016/j.colsurfb.2010.06.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Revised: 06/16/2010] [Accepted: 06/16/2010] [Indexed: 10/19/2022]
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Poly propyl ether imine (PETIM) dendrimer: A novel non-toxic dendrimer for sustained drug delivery. Eur J Med Chem 2010; 45:4997-5005. [DOI: 10.1016/j.ejmech.2010.08.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Revised: 08/04/2010] [Accepted: 08/06/2010] [Indexed: 11/21/2022]
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Huang X, Wu Z, Gao W, Chen Q, Yu B. Polyamidoamine dendrimers as potential drug carriers for enhanced aqueous solubility and oral bioavailability of silybin. Drug Dev Ind Pharm 2010; 37:419-27. [PMID: 20942611 DOI: 10.3109/03639045.2010.518150] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE In this study, the effect of polyamidoamine (PAMAM) dendrimers on the solubility of silybin was investigated. The in vitro drug release and the pharmacokinetics of silybin-dendrimer complex were also investigated. METHODS The solubilization of silybin by PAMAM dendrimers of generation G1.5, G2, G2.5, and G3 with different concentrations was determined and compared in different pH conditions. The in vitro release of silybin from the silybin-dendrimer complex was compared with pure silybin. Twelve rats randomized into two groups were separately orally administered silybin and silybin-PAMAM complex. RESULTS The water solubility of silybin was significantly improved by PAMAM dendrimers of generations G1.5, G2, G2.5, and G3 with different concentrations in different pH conditions (P < 0.05). The in vitro release of silybin from the silybin-dendrimer complex was significantly slower compared with pure silybin (P < 0.05). The pharmacokinetics parameters T (max), C(max), and AUC(0-∞) of silybin and silybin-dendrimer complex were 10 minutes, 134.2 ng/mL, 654.6 (ng·h)/mL and 15 minutes, 182.4 ng/mL, 1298.7 (ng·h)/mL, respectively. The relative oral bioavailability of silybin-dendrimer complex calculated on the basis of AUC(0-∞) was about 178% as compared with silybin. CONCLUSION These results indicated that PAMAM dendrimers could increase the water solubility of silybin and improve its oral bioavailability.
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Affiliation(s)
- Xin Huang
- School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing, PR China
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