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Peng H, He X, Wang Q. Targeted drug delivery system for ovarian cancer microenvironment: Improving the effects of immunotherapy. Front Immunol 2022; 13:1035997. [PMID: 36405688 PMCID: PMC9670735 DOI: 10.3389/fimmu.2022.1035997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
Immunotherapies have shown modest benefits in the current clinical trials for ovarian cancer. The tumor microenvironment (TME) in an immunosuppressive phenotype contributes to this “failure” of immunotherapy in ovarian cancer. Many stromal cell types in the TME (e.g., tumor-associated macrophages and fibroblasts) have been identified as having plasticity in pro- and antitumor activities and are responsible for suppressing the antitumor immune response. Thus, the TME is an extremely valuable target for adjuvant interventions to improve the effects of immunotherapy. The current strategies targeting the TME include: 1) eliminating immunosuppressive cells or transforming them into immunostimulatory phenotypes and 2) inhibiting their immunosuppressive or pro-tumor production. Most of the effective agents used in the above strategies are genetic materials (e.g., cDNA, mRNA, or miRNA), proteins, or other small molecules (e.g., peptides), which are limited in their target and instability. Various formulations of drug delivery system (DDS) have been designed to realize the controlled release and targeting delivery of these agents to the tumor sites. Nanoparticles and liposomes are the most frequently exploited materials. Based on current evidence from preclinical and clinical studies, the future of the DDS is promising in cancer immunotherapy since the combination of agents with a DDS has shown increased efficacy and decreased toxicities compared with free agents. In the future, more efforts are needed to further identify the hallmarks and biomarkers in the ovarian TME, which is crucial for the development of more effective, safe, and personalized DDSs.
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Alshammari RA, Aleanizy FS, Aldarwesh A, Alqahtani FY, Mahdi WA, Alquadeib B, Alqahtani QH, Haq N, Shakeel F, Abdelhady HG, Alsarra IA. Retinal Delivery of the Protein Kinase C-β Inhibitor Ruboxistaurin Using Non-Invasive Nanoparticles of Polyamidoamine Dendrimers. Pharmaceutics 2022; 14:1444. [PMID: 35890338 PMCID: PMC9322846 DOI: 10.3390/pharmaceutics14071444] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/22/2022] [Accepted: 07/06/2022] [Indexed: 01/25/2023] Open
Abstract
Ruboxistaurin (RBX) is an anti-vascular endothelial growth factor (anti-VEGF) agent that is used in the treatment of diabetic retinopathy and is mainly given intravitreally. To provide a safe and effective method for RBX administration, this study was designed to develop RBX nanoparticles using polyamidoamine (PAMAM) dendrimer generation 5 for the treatment of diabetic retinopathy. Drug loading efficiency, and in vitro release of proposed complexes of RBX: PAMAM dendrimers were determined and the complexation ratio that showed the highest possible loading efficiency was selected. The drug loading efficiency (%) of 1:1, 2.5:1, and 5:1 complexes was 89.2%, 96.4%, and 97.6%, respectively. Loading capacities of 1:1, 2.5:1, and 5:1 complexes were 1.6%, 4.0%, and 7.2% respectively. In comparison, the 5:1 complex showed the best results in the aforementioned measurements. The in vitro release studies showed that in 8 h, the RBX release from 1:1, 2.5:1, and 5:1 complexes was 37.5%, 35.9%, and 77.0%, respectively. In particular, 5:1 complex showed the highest drug release. In addition, particle size measurements showed that the diameter of empty PAMAM dendrimers was 214.9 ± 8.5 nm, whereas the diameters of loaded PAMAM dendrimers in 1:1, 2.5:1, 5:1 complexes were found to be 461.0 ± 6.4, 482.4 ± 12.5, and 420.0 ± 7.1 nm, respectively. Polydispersity index (PDI) showed that there were no significant changes in the PDI between the free and loaded PAMAM dendrimers. The zeta potential measurements showed that the free and loaded nanoparticles possessed neutral charges due to the presence of anionic and cationic terminal structures. Furthermore, the safety of this formulation was apparent on the viability of the MIO-M1 cell lines. This nanoformulation will improve the therapeutic outcomes of anti-VEGF therapy and the bioavailability of RBX to prevent vision loss in patients with diabetic retinopathy.
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Affiliation(s)
- Rehab A. Alshammari
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Ad Diriyah 13713, Saudi Arabia;
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.Y.A.); (W.A.M.); (B.A.); (N.H.); (F.S.); (I.A.A.)
| | - Fadilah S. Aleanizy
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.Y.A.); (W.A.M.); (B.A.); (N.H.); (F.S.); (I.A.A.)
| | - Amal Aldarwesh
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Fulwah Y. Alqahtani
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.Y.A.); (W.A.M.); (B.A.); (N.H.); (F.S.); (I.A.A.)
| | - Wael A. Mahdi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.Y.A.); (W.A.M.); (B.A.); (N.H.); (F.S.); (I.A.A.)
| | - Bushra Alquadeib
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.Y.A.); (W.A.M.); (B.A.); (N.H.); (F.S.); (I.A.A.)
| | - Qamraa H. Alqahtani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Nazrul Haq
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.Y.A.); (W.A.M.); (B.A.); (N.H.); (F.S.); (I.A.A.)
| | - Faiyaz Shakeel
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.Y.A.); (W.A.M.); (B.A.); (N.H.); (F.S.); (I.A.A.)
| | - Hosam G. Abdelhady
- Department of Physiology & Pharmacology, College of Osteopathic Medicine, Sam Houston State University, 925 City Central Avenue, Conroe, TX 77304, USA;
| | - Ibrahim A. Alsarra
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.Y.A.); (W.A.M.); (B.A.); (N.H.); (F.S.); (I.A.A.)
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Chis AA, Dobrea C, Morgovan C, Arseniu AM, Rus LL, Butuca A, Juncan AM, Totan M, Vonica-Tincu AL, Cormos G, Muntean AC, Muresan ML, Gligor FG, Frum A. Applications and Limitations of Dendrimers in Biomedicine. Molecules 2020; 25:E3982. [PMID: 32882920 PMCID: PMC7504821 DOI: 10.3390/molecules25173982] [Citation(s) in RCA: 158] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 12/11/2022] Open
Abstract
Biomedicine represents one of the main study areas for dendrimers, which have proven to be valuable both in diagnostics and therapy, due to their capacity for improving solubility, absorption, bioavailability and targeted distribution. Molecular cytotoxicity constitutes a limiting characteristic, especially for cationic and higher-generation dendrimers. Antineoplastic research of dendrimers has been widely developed, and several types of poly(amidoamine) and poly(propylene imine) dendrimer complexes with doxorubicin, paclitaxel, imatinib, sunitinib, cisplatin, melphalan and methotrexate have shown an improvement in comparison with the drug molecule alone. The anti-inflammatory therapy focused on dendrimer complexes of ibuprofen, indomethacin, piroxicam, ketoprofen and diflunisal. In the context of the development of antibiotic-resistant bacterial strains, dendrimer complexes of fluoroquinolones, macrolides, beta-lactamines and aminoglycosides have shown promising effects. Regarding antiviral therapy, studies have been performed to develop dendrimer conjugates with tenofovir, maraviroc, zidovudine, oseltamivir and acyclovir, among others. Furthermore, cardiovascular therapy has strongly addressed dendrimers. Employed in imaging diagnostics, dendrimers reduce the dosage required to obtain images, thus improving the efficiency of radioisotopes. Dendrimers are macromolecular structures with multiple advantages that can suffer modifications depending on the chemical nature of the drug that has to be transported. The results obtained so far encourage the pursuit of new studies.
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Affiliation(s)
| | - Carmen Dobrea
- Preclinical Department, Faculty of Medicine, “Lucian Blaga” University of Sibiu, 2A Lucian Blaga St., 550169 Sibiu, Romania; (A.A.C.); (A.M.A.); (L.L.R.); (A.B.); (A.M.J.); (M.T.); (A.L.V.-T.); (G.C.); (A.C.M.); (M.L.M.); (F.G.G.); (A.F.)
| | - Claudiu Morgovan
- Preclinical Department, Faculty of Medicine, “Lucian Blaga” University of Sibiu, 2A Lucian Blaga St., 550169 Sibiu, Romania; (A.A.C.); (A.M.A.); (L.L.R.); (A.B.); (A.M.J.); (M.T.); (A.L.V.-T.); (G.C.); (A.C.M.); (M.L.M.); (F.G.G.); (A.F.)
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Naqvi S, Panghal A, Flora SJS. Nanotechnology: A Promising Approach for Delivery of Neuroprotective Drugs. Front Neurosci 2020; 14:494. [PMID: 32581676 PMCID: PMC7297271 DOI: 10.3389/fnins.2020.00494] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 04/20/2020] [Indexed: 12/12/2022] Open
Abstract
Central nervous system (CNS) disorders especially neurodegenerative disorders are the major challenge for public health and demand the great attention of researchers to protect people against them. In past few decades, different treatment strategies have been adopted, but their therapeutic efficacy are not enough and have only shown partial mitigation of symptoms. Blood-brain barrier (BBB) and blood-cerebrospinal fluid barrier (BSCFB) guard the CNS from harmful substances and pose as the major challenges in delivering drugs into CNS for treatment of CNS complications such as Alzheimer’s disease (AD), Parkinson’s disease (PD), Huntington’s disease (HD), stroke, epilepsy, brain tumors, multiple sclerosis (MS), and encephalitis, etc. Nanotechnology has come out as an exciting and promising new platform of treating neurological disorders and has shown great potential to overcome problems related to the conventional treatment approaches. Molecules can be nanoengineered to carry out multiple specific functions such as to cross the BBB, target specific cell or signaling pathway, respond to endogenous stimuli, and act as a vehicle for gene delivery, support nerve regeneration and cell survival. In present review, the role of nanocarrier systems such as liposomes, micelles, solid lipid nanoparticles (SLNPs), dendrimers, and nanoemulsions for delivery of various neurotherapeutic agents has been discussed, besides this, their mechanism of action, and nanoformulation of different neuroprotective agents like curcumin, edaravone, nerve growth factors in CNS disorders like Alzheimer’s, Parkinsonism, epilepsy, stroke, and brain tumors has been reviewed.
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Affiliation(s)
- Saba Naqvi
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli, India
| | - Archna Panghal
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli, India
| | - S J S Flora
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli, India
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Choudhury H, Maheshwari R, Pandey M, Tekade M, Gorain B, Tekade RK. Advanced nanoscale carrier-based approaches to overcome biopharmaceutical issues associated with anticancer drug ‘Etoposide’. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 106:110275. [DOI: 10.1016/j.msec.2019.110275] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 12/14/2022]
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Farjadian F, Ghasemi A, Gohari O, Roointan A, Karimi M, Hamblin MR. Nanopharmaceuticals and nanomedicines currently on the market: challenges and opportunities. Nanomedicine (Lond) 2019; 14:93-126. [PMID: 30451076 PMCID: PMC6391637 DOI: 10.2217/nnm-2018-0120] [Citation(s) in RCA: 285] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 10/15/2018] [Indexed: 12/23/2022] Open
Abstract
There has been a revolution in nanotechnology and nanomedicine. Since 1980, there has been a remarkable increase in approved nano-based pharmaceutical products. These novel nano-based systems can either be therapeutic agents themselves, or else act as vehicles to carry different active pharmaceutical agents into specific parts of the body. Currently marketed nanostructures include nanocrystals, liposomes and lipid nanoparticles, PEGylated polymeric nanodrugs, other polymers, protein-based nanoparticles and metal-based nanoparticles. A range of issues must be addressed in the development of these nanostructures. Ethics, market size, possibility of market failure, costs and commercial development, are some topics which are on the table to be discussed. After passing all the ethical and biological assessments, and satisfying the investors as to future profitability, only a handful of these nanoformulations, successfully obtained marketing approval. We survey the range of nanomedicines that have received regulatory approval and are marketed. We discuss ethics, costs, commercial development and possible market failure. We estimate the global nanomedicine market size and future growth. Our goal is to summarize the different approved nanoformulations on the market, and briefly cover the challenges and future outlook.
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Affiliation(s)
- Fatemeh Farjadian
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 71468-64685, Iran
| | - Amir Ghasemi
- Department of Materials Science & Engineering, Sharif University of Technology, Tehran 11365-9466, Iran
- Advances Nanobiotechnology & Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran 14496-4535, Iran
| | - Omid Gohari
- Department of Materials Science & Engineering, Sharif University of Technology, Tehran 11365-9466, Iran
| | - Amir Roointan
- Department of Medical Biotechnology, School of Advanced Medical Sciences & Technologies, Shiraz University of Medical Science, Shiraz 71348-14336, Iran
| | - Mahdi Karimi
- Cellular & Molecular Research Center, Iran University of Medical Sciences, Tehran 14496-14535, Iran
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran 14496-14535, Iran
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Harvard – MIT Division of Health Sciences & Technology, Cambridge, MA 02139, USA
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Polyamidoamine Dendrimers for Enhanced Solubility of Small Molecules and Other Desirable Properties for Site Specific Delivery: Insights from Experimental and Computational Studies. Molecules 2018; 23:molecules23061419. [PMID: 29895742 PMCID: PMC6100328 DOI: 10.3390/molecules23061419] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/06/2018] [Accepted: 06/07/2018] [Indexed: 01/05/2023] Open
Abstract
Clinical applications of many small molecules are limited due to poor solubility and lack of controlled release besides lack of other desirable properties. Experimental and computational studies have reported on the therapeutic potential of polyamidoamine (PAMAM) dendrimers as solubility enhancers in pre-clinical and clinical settings. Besides formulation strategies, factors such as pH, PAMAM dendrimer generation, PAMAM dendrimer concentration, nature of the PAMAM core, special ligand and surface modifications of PAMAM dendrimer have an influence on drug solubility and other recommendable pharmacological properties. This review, therefore, compiles the recently reported applications of PAMAM dendrimers in pre-clinical and clinical uses as enhancers of solubility and other desirable properties such as sustained and controlled release, bioavailability, bio-distribution, toxicity reduction or enhancement, and targeted delivery of small molecules with emphasis on cancer treatment.
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8
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PAMAM dendrimers as a carbamazepine delivery system for neurodegenerative diseases: A biophysical and nanotoxicological characterization. Int J Pharm 2018; 544:191-202. [DOI: 10.1016/j.ijpharm.2018.04.032] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/06/2018] [Accepted: 04/16/2018] [Indexed: 11/17/2022]
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9
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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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Jogi H, Maheshwari R, Raval N, Kuche K, Tambe V, Mak KK, Pichika MR, Tekade RK. Carbon nanotubes in the delivery of anticancer herbal drugs. Nanomedicine (Lond) 2018; 13:1187-1220. [DOI: 10.2217/nnm-2017-0397] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cancer is estimated to be a significant health problem of the 21st century. The situation gets even tougher when it comes to its treatment using chemotherapy employing synthetic anticancer molecules with numerous side effects. Recently, there has been a paradigm shift toward the adoption of herbal drugs for the treatment of cancer. In this context, a suitable delivery system is principally warranted to deliver these herbal biomolecules specifically at the tumorous site. To achieve this goal, carbon nanotubes (CNTs) have been widely explored to deliver anticancer herbal molecules with improved therapeutic efficacy and safety. This review uniquely expounds the biopharmaceutical, clinical and safety aspects of different anticancer herbal drugs delivered through CNTs with a cross-talk on their outcomes. This review will serve as a one-stop-shop for the readers on various anticancer herbal drugs delivered through CNTs as a futuristic delivery device.
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Affiliation(s)
- Hardi Jogi
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Opposite Air Force Station Palaj, Gandhinagar, Gujarat, 382355 India
| | - Rahul Maheshwari
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Opposite Air Force Station Palaj, Gandhinagar, Gujarat, 382355 India
| | - Nidhi Raval
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Opposite Air Force Station Palaj, Gandhinagar, Gujarat, 382355 India
| | - Kaushik Kuche
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Opposite Air Force Station Palaj, Gandhinagar, Gujarat, 382355 India
| | - Vishakha Tambe
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Opposite Air Force Station Palaj, Gandhinagar, Gujarat, 382355 India
| | - Kit-Kay Mak
- School of Postgraduate Studies & Research, International Medical University, Kuala Lumpur, Malaysia
| | - Mallikarjuna Rao Pichika
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Rakesh Kumar Tekade
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Opposite Air Force Station Palaj, Gandhinagar, Gujarat, 382355 India
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11
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Choi YH, Han HK. Nanomedicines: current status and future perspectives in aspect of drug delivery and pharmacokinetics. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2017; 48:43-60. [PMID: 30546919 PMCID: PMC6244736 DOI: 10.1007/s40005-017-0370-4] [Citation(s) in RCA: 239] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 11/08/2017] [Indexed: 12/21/2022]
Abstract
Nanomedicines have evolved into various forms including dendrimers, nanocrystals, emulsions, liposomes, solid lipid nanoparticles, micelles, and polymeric nanoparticles since their first launch in the market. Widely highlighted benefits of nanomedicines over conventional medicines include superior efficacy, safety, physicochemical properties, and pharmacokinetic/pharmacodynamic profiles of pharmaceutical ingredients. Especially, various kinetic characteristics of nanomedicines in body are further influenced by their formulations. This review provides an updated understanding of nanomedicines with respect to delivery and pharmacokinetics. It describes the process and advantages of the nanomedicines approved by FDA and EMA. New FDA and EMA guidelines will also be discussed. Based on the analysis of recent guidelines and approved nanomedicines, key issues in the future development of nanomedicines will be addressed.
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Affiliation(s)
- Young Hee Choi
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, 32 Dongguk-lo, Ilsandong-gu, Goyang, Gyonggi-do 10326 Republic of Korea
| | - Hyo-Kyung Han
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, 32 Dongguk-lo, Ilsandong-gu, Goyang, Gyonggi-do 10326 Republic of Korea
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12
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The Warburg effect and glucose-derived cancer theranostics. Drug Discov Today 2017; 22:1637-1653. [DOI: 10.1016/j.drudis.2017.08.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 07/16/2017] [Accepted: 08/14/2017] [Indexed: 12/20/2022]
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13
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Maheshwari R, Tekade M, Gondaliya P, Kalia K, D'Emanuele A, Tekade RK. Recent advances in exosome-based nanovehicles as RNA interference therapeutic carriers. Nanomedicine (Lond) 2017; 12:2653-2675. [DOI: 10.2217/nnm-2017-0210] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
RNA interference (RNAi) therapeutics (siRNA, miRNA, etc.) represent an emerging medicinal remedy for a variety of ailments. However, their low serum stability and low cellular uptake significantly restrict their clinical applications. Exosomes are biologically derived nanodimensional vesicle ranging from a few nanometers to a hundred. In the last few years, several reports have been published demonstrating the emerging applications of these exogenous membrane vesicles, particularly in carrying different RNAi therapeutics to adjacent or distant targeted cells. In this report, we explored the numerous aspects of exosomes from structure to clinical implications with special emphasis on their application in delivering RNAi-based therapeutics. siRNA and miRNA have attracted great interest in recent years due to their specific application in treating many complex diseases including cancer. We highlight strategies to obviate the challenges of their low bioavailability for gene therapy.
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Affiliation(s)
- Rahul Maheshwari
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Muktika Tekade
- TIT College of Pharmacy, Technocrats Institute of Technology Campus, Anand Nagar, Raisen Road, Bhopal 462021, Madhya Pradesh, India
| | - Piyush Gondaliya
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Kiran Kalia
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Antony D'Emanuele
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, UK
| | - Rakesh Kumar Tekade
- National Institute of Pharmaceutical Education & Research (NIPER) – Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
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Elkin I, Banquy X, Barrett CJ, Hildgen P. Non-covalent formulation of active principles with dendrimers: Current state-of-the-art and prospects for further development. J Control Release 2017; 264:288-305. [DOI: 10.1016/j.jconrel.2017.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/28/2017] [Accepted: 09/01/2017] [Indexed: 12/18/2022]
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15
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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: 230] [Impact Index Per Article: 32.9] [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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Gorain B, Tekade M, Kesharwani P, Iyer AK, Kalia K, Tekade RK. The use of nanoscaffolds and dendrimers in tissue engineering. Drug Discov Today 2017; 22:652-664. [PMID: 28219742 DOI: 10.1016/j.drudis.2016.12.007] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 11/02/2016] [Accepted: 12/16/2016] [Indexed: 01/02/2023]
Abstract
To avoid tissue rejection during organ transplantation, research has focused on the use of tissue engineering to regenerate required tissues or organs for patients. The biomedical applications of hyperbranched, multivalent, structurally uniform, biocompatible dendrimers in tissue engineering include the mimicking of natural extracellular matrices (ECMs) in the 3D microenvironment. Dendrimers are unimolecular architects that can incorporate a variety of biological and/or chemical substances in a 3D architecture to actively support the scaffold microenvironment during cell growth. Here, we review the use of dendritic delivery systems in tissue engineering. We discuss the available literature, highlighting the 3D architecture and preparation of these nanoscaffolds, and also review challenges to, and advances in, the use dendrimers in tissue engineering. Advances in the manufacturing of dendritic nanoparticles and scaffold architectures have resulted in the successful incorporation of dendritic scaffolds in tissue engineering.
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Affiliation(s)
- Bapi Gorain
- Faculty of Pharmacy, Lincoln University College, Kuala Lumpur, Malaysia
| | - Muktika Tekade
- TIT College of Pharmacy, Technocrats Institute of Technology, Anand Nagar, Bhopal, MP 462021, India
| | - Prashant Kesharwani
- The International Medical University, School of Pharmacy, Department of Pharmaceutical Technology, Jalan Jalil Perkasa 19, 57000 Kuala Lumpur, Malaysia
| | - Arun K Iyer
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Kiran Kalia
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Rakesh Kumar Tekade
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar 382355, Gujarat, India.
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Augmented delivery of gemcitabine in lung cancer cells exploring mannose anchored solid lipid nanoparticles. J Colloid Interface Sci 2016; 481:107-16. [DOI: 10.1016/j.jcis.2016.07.020] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 07/10/2016] [Accepted: 07/11/2016] [Indexed: 12/11/2022]
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18
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Tekade RK, Tekade M, Kesharwani P, D’Emanuele A. RNAi-combined nano-chemotherapeutics to tackle resistant tumors. Drug Discov Today 2016; 21:1761-1774. [DOI: 10.1016/j.drudis.2016.06.029] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 05/12/2016] [Accepted: 06/28/2016] [Indexed: 01/01/2023]
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Singh MK, Pooja D, Kulhari H, Jain SK, Sistla R, Chauhan AS. Poly (amidoamine) dendrimer-mediated hybrid formulation for combination therapy of ramipril and hydrochlorothiazide. Eur J Pharm Sci 2016; 96:84-92. [PMID: 27614111 DOI: 10.1016/j.ejps.2016.09.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 08/30/2016] [Accepted: 09/05/2016] [Indexed: 11/19/2022]
Abstract
We present a dendrimer-based hybrid formulation strategy to explore the potential of poly (amidoamine) PAMAM dendrimers to be used as drug carriers for combination therapy of an anti-hypertensive drug ramipril (RAPL) and a diuretic hydrochlorothiazide (HCTZ). The drug-dendrimer complexes were prepared by phase-equilibration method. The results showed that the solubility of RAPL and HCTZ was dependent on dendrimer concentration and pH of dendrimer solution. The solubility profile of both RAPL and HCTZ dendrimer complexes illustrated a non-linear relationship with dendrimer concentration. At 0.8% (w/v) dendrimer concentration, solubility of RAPL was increased 4.91 folds with amine-terminated while for HCTZ, solubility enhancement was highest (3.72 folds) with carboxy-terminated. The complexes were characterized by Fourier transform infrared spectroscopy, nuclear magnetic resonance analysis and high performance liquid chromatography. In-vitro drug dissolution performance of pure drugs, individual drug loaded dendrimer formulations and hybrid formulations was studied in USP dissolution medium (pH7.0) and in simulated gastric fluid (pH1.2). Dendrimer mediated formulations showed faster and complete dissolution compared to pure RAPL or HCTZ. Surprisingly, similar pattern of dissolution profile was established with hybrid formulations as compared to individual drug loaded dendrimers. The dendrimer-based hybrid formulations were found to be stable at dark and refrigerated conditions up to 5weeks. Conclusively, the proposed formulation strategy establishes a novel multitasking platform using dendrimer for simultaneous loading and delivery of multiple drugs for pharmaceutical applications.
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Affiliation(s)
- Mayank Kumar Singh
- Institute of Pharmacy, Bundelkhand University, Jhansi, Uttar Pradesh 284 128, India; Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Deep Pooja
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Hitesh Kulhari
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; IICT-RMIT Joint Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Sanjay Kumar Jain
- Institute of Pharmacy, Bundelkhand University, Jhansi, Uttar Pradesh 284 128, India
| | - Ramakrishna Sistla
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
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Mansuri S, Kesharwani P, Tekade RK, Jain NK. Lyophilized mucoadhesive-dendrimer enclosed matrix tablet for extended oral delivery of albendazole. Eur J Pharm Biopharm 2016; 102:202-13. [DOI: 10.1016/j.ejpb.2015.10.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/26/2015] [Accepted: 10/28/2015] [Indexed: 12/17/2022]
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Kalomiraki M, Thermos K, Chaniotakis NA. Dendrimers as tunable vectors of drug delivery systems and biomedical and ocular applications. Int J Nanomedicine 2015; 11:1-12. [PMID: 26730187 PMCID: PMC4694674 DOI: 10.2147/ijn.s93069] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dendrimers are large polymeric structures with nanosize dimensions (1-10 nm) and unique physicochemical properties. The major advantage of dendrimers compared with linear polymers is their spherical-shaped structure. During synthesis, the size and shape of the dendrimer can be customized and controlled, so the finished macromolecule will have a specific "architecture" and terminal groups. These characteristics will determine its suitability for drug delivery, diagnostic imaging, and as a genetic material carrier. This review will focus initially on the unique properties of dendrimers and their use in biomedical applications, as antibacterial, antitumor, and diagnostic agents. Subsequently, emphasis will be given to their use in drug delivery for ocular diseases.
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Affiliation(s)
- Marina Kalomiraki
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Crete Voutes, Heraklion, Greece
| | - Kyriaki Thermos
- Department of Pharmacology, School of Medicine, University of Crete Voutes, Heraklion, Greece
| | - Nikos A Chaniotakis
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Crete Voutes, Heraklion, Greece
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Shadrack DM, Mubofu EB, Nyandoro SS. Synthesis of Polyamidoamine Dendrimer for Encapsulating Tetramethylscutellarein for Potential Bioactivity Enhancement. Int J Mol Sci 2015; 16:26363-77. [PMID: 26556337 PMCID: PMC4661815 DOI: 10.3390/ijms161125956] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 09/30/2015] [Accepted: 10/08/2015] [Indexed: 11/23/2022] Open
Abstract
The biomedical potential of flavonoids is normally restricted by their low water solubility. However, little has been reported on their encapsulation into polyamidoamine (PAMAM) dendrimers to improve their biomedical applications. Generation four (G4) PAMAM dendrimer containing ethylenediaminetetraacetic acid core with acrylic acid and ethylenediamine as repeating units was synthesized by divergent approach and used to encapsulate a flavonoid tetramethylscutellarein (TMScu, 1) to study its solubility and in vitro release for potential bioactivity enhancement. The as-synthesized dendrimer and the dendrimer-TMScu complex were characterized by spectroscopic and spectrometric techniques. The encapsulation of 1 into dendrimer was achieved by a co-precipitation method with the encapsulation efficiency of 77.8% ± 0.69% and a loading capacity of 6.2% ± 0.06%. A phase solubility diagram indicated an increased water solubility of 1 as a function of dendrimer concentration at pH 4.0 and 7.2. In vitro release of 1 from its dendrimer complex indicated high percentage release at pH 4.0. The stability study of the TMScu-dendrimer at 0, 27 and 40 °C showed the formulations to be stable when stored in cool and dark conditions compared to those stored in light and warmer temperatures. Overall, PAMAM dendrimer-G4 is capable of encapsulating 1, increasing its solubility and thus could enhance its bioactivity.
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Affiliation(s)
- Daniel M Shadrack
- Chemistry Department, University of Dar es Salaam, College of Natural and Applied Sciences, P.O. Box 35061 Dar es Salaam, Tanzania.
- Chemistry Department, St John's University of Tanzania, P.O. Box 47 Dodoma, Tanzania.
| | - Egid B Mubofu
- Chemistry Department, University of Dar es Salaam, College of Natural and Applied Sciences, P.O. Box 35061 Dar es Salaam, Tanzania.
| | - Stephen S Nyandoro
- Chemistry Department, University of Dar es Salaam, College of Natural and Applied Sciences, P.O. Box 35061 Dar es Salaam, Tanzania.
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Thakur S, Kesharwani P, Tekade RK, Jain NK. Impact of pegylation on biopharmaceutical properties of dendrimers. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.051] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Murugan E, Yogaraj V, Geetha Rani DP, Sinha AK. Evaluation of surface acetylated and internally quaternized poly(propylene imine) dendrimer as a biocompatible drug carrier for piroxicam as a model drug. RSC Adv 2015. [DOI: 10.1039/c5ra20704e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two types of new surface acetylated and internally quaternized poly(propylene imine) dendrimers QPPI-NHAc (G2)/(G3) were prepared, characterized and then demonstrated as potential and biocompatible drug carriers using piroxicam as a model drug.
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Affiliation(s)
- E. Murugan
- Department of Physical Chemistry
- School of Chemical Sciences
- University of Madras
- Chennai – 600 025
- India
| | - V. Yogaraj
- Department of Physical Chemistry
- School of Chemical Sciences
- University of Madras
- Chennai – 600 025
- India
| | - D. P. Geetha Rani
- Department of Physical Chemistry
- School of Chemical Sciences
- University of Madras
- Chennai – 600 025
- India
| | - Alok Kumar Sinha
- Department of Science and Technology
- Nano Mission Division
- New Delhi – 110016
- India
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Howard MD, Hood ED, Zern B, Shuvaev VV, Grosser T, Muzykantov VR. Nanocarriers for vascular delivery of anti-inflammatory agents. Annu Rev Pharmacol Toxicol 2014; 54:205-26. [PMID: 24392694 DOI: 10.1146/annurev-pharmtox-011613-140002] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
There is a need for improved treatment of acute vascular inflammation in conditions such as ischemia-reperfusion injury, acute lung injury, sepsis, and stroke. The vascular endothelium represents an important therapeutic target in these conditions. Furthermore, some anti-inflammatory agents (AIAs) (e.g., biotherapeutics) require precise delivery into subcellular compartments. In theory, optimized delivery to the desired site of action may improve the effects and enable new mechanisms of action of these AIAs. Diverse nanocarriers (NCs) and strategies for targeting them to endothelial cells have been designed and explored for this purpose. Studies in animal models suggest that delivery of AIAs using NCs may provide potent and specific molecular interventions in inflammatory pathways. However, the industrial development and clinical translation of complex NC-AIA formulations are challenging. Rigorous analysis of therapeutic/side effect and benefit/cost ratios is necessary to identify and optimize the approaches that may find clinical utility in the management of acute inflammation.
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Affiliation(s)
- Melissa D Howard
- Department of Pharmacology and Center for Targeted Therapeutics and Translational Nanomedicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104;
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Dendrimer–TPGS mixed micelles for enhanced solubility and cellular toxicity of taxanes. Colloids Surf B Biointerfaces 2014; 121:461-8. [DOI: 10.1016/j.colsurfb.2014.06.059] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 06/23/2014] [Accepted: 06/25/2014] [Indexed: 11/19/2022]
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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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Mody N, Tekade RK, Mehra NK, Chopdey P, Jain NK. Dendrimer, liposomes, carbon nanotubes and PLGA nanoparticles: one platform assessment of drug delivery potential. AAPS PharmSciTech 2014; 15:388-99. [PMID: 24431104 DOI: 10.1208/s12249-014-0073-3] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Accepted: 12/23/2013] [Indexed: 01/19/2023] Open
Abstract
Liposomes (LIP), nanoparticles (NP), dendrimers (DEN), and carbon nanotubes (CNTs), represent eminent classes of drug delivery devices. A study was carried out herewith by employing docetaxel (DTX) as model drug to assess their comparative drug delivery potentials. Under optimized conditions, highest entrapment of DTX was observed in CNT-based formulation (DTX-CNTs, 74.70 ± 4.9%) followed by nanoparticles (DTX-NP, 62.34 ± 1.5%), liposome (49.2 ± 1.51%), and dendrimers (28.26 ± 1.74%). All the formulations were found to be of nanometric size. In vitro release studies were carried out in PBS (pH 7.0 and 4.0), wherein all the formulations showed biphasic release pattern. Cytotoxicity assay in human cervical cancer SiHa cells inferred lowest IC50 value of 1,235.09 ± 41.93 nM with DTX-CNTs, followed by DTX-DEN, DTX-LIP, DTX-NP with IC50 values of 1,571.22 ± 151.27, 1,653.98 ± 72.89, 1,922.75 ± 75.15 nM, respectively. Plain DTX showed higher hemolytic toxicity of 22.48 ± 0.94%, however loading of DTX inside nanocarriers drastically reduced its hemolytic toxicity (DTX-DEN, 17.22 ± 0.48%; DTX-LIP, 4.13 ± 0.19%; DTX-NP, 6.43 ± 0.44%; DTX-CNTs, 14.87 ± 1.69%).
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Drug-dendrimer supramolecular complexation studied from molecular dynamics simulations and NMR spectroscopy. Struct Chem 2014. [DOI: 10.1007/s11224-014-0424-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Jain S, Kesharwani P, Tekade RK, Jain NK. One platform comparison of solubilization potential of dendrimer with some solubilizing agents. Drug Dev Ind Pharm 2014; 41:722-7. [DOI: 10.3109/03639045.2014.900077] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Kesharwani P, Tekade RK, Jain NK. Formulation development and in vitro-in vivo assessment of the fourth-generation PPI dendrimer as a cancer-targeting vector. Nanomedicine (Lond) 2014; 9:2291-308. [PMID: 24593000 DOI: 10.2217/nnm.13.210] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM In spite of numerous biopharmaceutical applications of fifth-generation poly(propyleneimine) (PPI) dendrimers, inherent toxicity due to the presence of many peripheral cationic groups is the major issue that limits their applicability. Maximum biocompatibility with minimal toxicity is the key rationale for an ideal drug-delivery system. Keeping this principle in mind, the present investigation aimed to explore the tumor-targeting potential of folate-engineered fourth-generation PPI dendrimers loaded with an anticancer drug, melphalan. MATERIALS & METHODS Fourth-generation PPI as well as folate-conjugated fourth-generation PPI dendrimers were synthesized, characterized and loaded with melphalan. RESULTS Hemolytic toxicity, cytotoxicity, cellular uptake and fluorescence uptake studies reveal that the developed folate-conjugated derivative has significantly lower toxicity, as well as demonstrates folate receptor specificity. DISCUSSION & CONCLUSION The developed nanoconjugates appear to be proficient in carrying as well as site-specific delivery of melphalan, with an improved therapeutic margin and improved safety.
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Affiliation(s)
- Prashant Kesharwani
- Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences, Dr Hari Singh Gour University, Sagar 470003, Madhya Pradesh, India
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Jha RK, Jha PK, Chaudhury K, Rana SVS, Guha SK. An emerging interface between life science and nanotechnology: present status and prospects of reproductive healthcare aided by nano-biotechnology. NANO REVIEWS 2014; 5:22762. [PMID: 24600516 PMCID: PMC3943174 DOI: 10.3402/nano.v5.22762] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 01/14/2014] [Accepted: 01/19/2014] [Indexed: 11/24/2022]
Abstract
Among the various applications of nano-biotechnology, healthcare is considered one of the most significant domains. For that possibility to synthesize various kind of nanoparticles (NPs) and the ever-increasing ability to control their size as well as structure, to improve surface characteristics and binding NPs with other desired curing agents has played an important role. In this paper, a brief sketch of various kinds of nanomaterials and their biomedical applications is given. Despite claims of bio-nanotechnology about to touch all areas of medical science, information pertaining to the role of nanotechnology for the betterment of reproductive healthcare is indeed limited. Therefore, the various achievements of nano-biotechnology for healthcare in general have been illustrated while giving special insight into the role of nano-biotechnology for the future of reproductive healthcare betterment as well as current achievements of nanoscience and nanotechnology in this arena.
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Affiliation(s)
- Rakhi K Jha
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India
| | - Pradeep K Jha
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India
| | - Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India
| | | | - Sujoy K Guha
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India
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Abstract
To date, various nanodrug systems have been developed for different routes of administration, which include dendrimers, nanocrystals, emulsions, liposomes, solid lipid nanoparticles, micelles, and polymeric nanoparticles. Nanodrug systems have been employed to improve the efficacy, safety, physicochemical properties, and pharmacokinetic/pharmacodynamic profile of pharmaceutical substances. In particular, functionalized nanodrug systems can offer enhanced bioavailability of orally taken drugs, prolonged half-life of injected drugs (by reducing immunogenicity), and targeted delivery to specific tissues. Thus, nanodrug systems might lower the frequency of administration while providing maximized pharmacological effects and minimized systemic side effects, possibly leading to better therapeutic compliance and clinical outcomes. In spite of these attractive pharmacokinetic advantages, recent attention has been drawn to the toxic potential of nanodrugs since they often exhibit in vitro and in vivo cytotoxicity, oxidative stress, inflammation, and genotoxicity. A better understanding of the pharmacokinetic and safety characteristics of nanodrugs and the limitations of each delivery option is necessary for the further development of efficacious nanodrugs with high therapeutic potential and a wide safety margin. This review highlights the recent progress in nanodrug system development, with a focus on the pharmacokinetic advantages and safety challenges.
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Affiliation(s)
- Satomi Onoue
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Shizuo Yamada
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Hak-Kim Chan
- Advanced Drug Delivery Group, Faculty of Pharmacy, The University of Sydney, Sydney, NSW, Australia
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Barra PA, Barraza L, Jiménez VA, Gavín JA, Alderete JB. Complexation of Mefenamic Acid by Low-Generation PAMAM Dendrimers: Insight from NMR Spectroscopy Studies and Molecular Dynamics Simulations. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201300398] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Pabla A. Barra
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad de Concepcion; Casilla 160-C Concepcion Chile
| | - Luis Barraza
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad de Concepcion; Casilla 160-C Concepcion Chile
| | - Verónica A. Jiménez
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad de Concepcion; Casilla 160-C Concepcion Chile
| | - José A. Gavín
- Instituto Universitario de Bioorgánica, “A. González”; Universidad de la Laguna; Avda. Astrofísico F. Sánchez 2 La Laguna Tenerife Spain
| | - Joel B. Alderete
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad de Concepcion; Casilla 160-C Concepcion Chile
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Uclés A, Martínez Bueno MJ, Ulaszewska MM, Hernando MD, Ferrer C, Fernández-Alba AR. Quantitative determination of poly(amidoamine) dendrimers in urine by liquid chromatography/electrospray ionization hybrid quadrupole linear ion trap mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:2519-2529. [PMID: 24123640 DOI: 10.1002/rcm.6713] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 08/18/2013] [Accepted: 08/19/2013] [Indexed: 06/02/2023]
Abstract
RATIONALE Dendrimer nanocarriers have become of increasing interest in the field of biomedicine for their drug delivery potential. Surface modifications and optimized nanosize control are the strategies being followed to enhance drug delivery efficacy and renal clearance, especially for dendrimers of a lower generation number. The aim of this study was the development and performance evaluation of an analytical method for the quantitative determination of polyamidoamine (PAMAM) dendrimers in urine. METHODS PAMAM dendrimers (generations G0 to G3) were analyzed using liquid chromatography/electrospray ionization hybrid quadrupole linear ion trap mass spectrometry (LC/ESI-QqLIT-MS). Quantitative analysis was performed in selected reaction monitoring (SRM) mode. To confer a higher degree of confidence on the identification of PAMAM dendrimers, an SRM scan and collision-induced dissociation (CID), as a dependent scan, were performed in one single run using the information-dependent acquisition (IDA) mode. RESULTS The LC/ESI-QqLIT-MS method, in SRM mode, allowed quantitative determination in urine matrix with good repeatability and reproducibility (relative standard deviation (R.S.D.) from 2 to 15%), linearity (R >0.99) over the concentration range (6∙10-4 to 5∙10-2 mmol.L-1 ), and sensitivity within the micromolar range. The detection limit values were above 1∙10-4 mmol.L-1 in both solvent and urine, for the generations studied. CONCLUSIONS The developed method has demonstrated a capability for the identification and quantification of PAMAM dendrimer nanoparticles in a complex liquid matrix. The use of an LC/ESI-QqLIT-MS system, of modest m/z range and unit resolution, offers an alternative in the analysis of lower generation PAMAM dendrimers between mass analyzers of higher resolution and the conventional LC-UV method that is commonly applied for dendrimer quantification, but which lacks sufficient identification capacity. Copyright © 2013 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ana Uclés
- Pesticide Residues Research Group, European Union Reference Laboratory (EURL), Department of Chemistry and Physics, University of Almería, 04120 La Cañada de San Urbano, Almería, Spain; IMDEA-Water (Madrid Institute for Advanced Studies-Water), Parque Científico Tecnológico, University of Alcalá, 28805, Alcalá de Henares, Madrid, Spain
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STAT6 siRNA matrix-loaded gelatin nanocarriers: formulation, characterization, and ex vivo proof of concept using adenocarcinoma cells. BIOMED RESEARCH INTERNATIONAL 2013; 2013:858946. [PMID: 24191252 PMCID: PMC3806510 DOI: 10.1155/2013/858946] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 08/13/2013] [Indexed: 12/22/2022]
Abstract
The clinical utility of siRNA therapy has been hampered due to poor cell penetration, nonspecific effects, rapid degradation, and short half-life. We herewith proposed the formulation development of STAT6 siRNA (S6S) nanotherapeutic agent by encapsulating them within gelatin nanocarriers (GNC). The prepared nanoformulation was characterized for size, charge, loading efficiency, release kinetics, stability, cytotoxicity, and gene silencing assay. The stability of S6S-GNC was also assessed under conditions of varying pH, serum level, and using electrophoretic assays. In vitro cytotoxicity performance was evaluated in human adenocarcinoma A549 cells following MTT assay. The developed formulation resulted in an average particle size, surface charge, and encapsulation efficiency as 70 ± 6.5 nm, +10 ± 1.5 mV, and 85 ± 4.0%, respectively. S6S-GNC showed an insignificant (P < 0.05) change in the size and charge in the presence of buffer solutions (pH 6.4 to 8.4) and FBS (10% v/v). A549 cells were treated with native S6S, S6S-lipofectamine, placebo-GNC, and S6S-GNC using untreated cells as a control. It was observed that cell viability was decreased significantly with S6S-GNC by 55 ± 4.1% (P < 0.001) compared to native S6S (2.0 ± 0.55%) and S6S-lipofectamine complex (40 ± 3.1%). This investigation infers that gelatin polymer-based nanocarriers are a robust, stable, and biocompatible strategy for the delivery of siRNA.
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Formulation development and evaluation of hybrid nanocarrier for cancer therapy: Taguchi orthogonal array based design. BIOMED RESEARCH INTERNATIONAL 2013; 2013:712678. [PMID: 24106715 PMCID: PMC3784087 DOI: 10.1155/2013/712678] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 06/13/2013] [Indexed: 02/03/2023]
Abstract
Taguchi orthogonal array design is a statistical approach that helps to overcome limitations associated with time consuming full factorial experimental design. In this study, the Taguchi orthogonal array design was applied to establish the optimum conditions for bovine serum albumin (BSA) nanocarrier (ANC) preparation. Taguchi method with L9 type of robust orthogonal array design was adopted to optimize the experimental conditions. Three key dependent factors namely, BSA concentration (% w/v), volume of BSA solution to total ethanol ratio (v : v), and concentration of diluted ethanolic aqueous solution (% v/v), were studied at three levels 3%, 4%, and 5% w/v; 1 : 0.75, 1 : 0.90, and 1 : 1.05 v/v; 40%, 70%, and 100% v/v, respectively. The ethanolic aqueous solution was used to impart less harsh condition for desolvation and attain controlled nanoparticle formation. The interaction plot studies inferred the ethanolic aqueous solution concentration to be the most influential parameter that affects the particle size of nanoformulation. This method (BSA, 4% w/v; volume of BSA solution to total ethanol ratio, 1 : 0.90 v/v; concentration of diluted ethanolic solution, 70% v/v) was able to successfully develop Gemcitabine (G) loaded modified albumin nanocarrier (M-ANC-G) of size 25.07 ± 2.81 nm (ζ = −23.03 ± 1.015 mV) as against to 78.01 ± 4.99 nm (ζ = −24.88 ± 1.37 mV) using conventional method albumin nanocarrier (C-ANC-G). Hybrid nanocarriers were generated by chitosan layering (solvent gelation technique) of respective ANC to form C-HNC-G and M-HNC-G of sizes 125.29 ± 5.62 nm (ζ = 12.01 ± 0.51 mV) and 46.28 ± 2.21 nm (ζ = 15.05 ± 0.39 mV), respectively. Zeta potential, entrapment, in vitro release, and pH-based stability studies were investigated and influence of formulation parameters are discussed. Cell-line-based cytotoxicity assay (A549 and H460 cells) and cell internalization assay (H460 cell line) were performed to assess the influence on the bioperformance of these nanoformulations.
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Tekade RK, D'Emanuele A, Elhissi A, Agrawal A, Jain A, Arafat BT, Jain NK. Extraction and RP-HPLC determination of taxol in rat plasma, cell culture and quality control samples. J Biomed Res 2013; 27:394-405. [PMID: 24086173 PMCID: PMC3783825 DOI: 10.7555/jbr.27.20120123] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 02/22/2013] [Accepted: 03/06/2013] [Indexed: 11/03/2022] Open
Abstract
A rapid, sensitive, selective and validated reverse phase high-performance liquid chromatography (RP-HPLC) method for the estimation of paclitaxel in micro-sample of rat plasma and in culture of cancer cells was performed in this study. The mobile phase consisted of an optimized mixture of methanol:water: trifluroacetic acid (80: 20: 0.1, v/v/v). Column elution at a flow rate of 1 mL/minute with UV detection at 225 nm at room temperature was used. The RP-HPLC method was successfully applied for the determination of paclitaxel in plasma samples and in culture of cancer cells with nano-quantity of estimation. The validation studies were performed in accordance with the International Conference on Harmonization (ICH) guidelines. The intra- and inter-day precision showed that the coefficients of variation ranged from 1.07% to 4.27% at different levels of concentrations. To the best of our knowledge, this study also reported for the first time the optimization of different solvents for effective extraction of paclitaxel wherein tert.-butyl methyl ether (TBME): diethyl ether (DEE) in 50: 50 v/v composition was found most efficient with extraction efficiency ranging between 77.99% and 91.74% and between 76.14 and 93.66% in the plasma and cell culture, respectively. This proposed method was successfully applied to study the pharmacokinetics of paclitaxel and the influence of verapamil and all-trans retinoic acid (atRA) on paclitaxel pharmacokinetics in rat models. This proposed method might emerge as a valuable aid in the laboratory monitoring of paclitaxel in a variety of in vitro as well as in vivo scenarios.
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Affiliation(s)
- Rakesh Kumar Tekade
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE United Kingdom; ; College of Pharmacy, University of Hawai'i at Hilo, 96720, Hawai'i, USA; ; Pharmaceutics Research Laboratory, Dr. Hari Singh Gour University, Sagar (M.P), 470003 India
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Solubility enhancement of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) using polypolypropylene oxide core PAMAM dendrimers. Int J Pharm 2013; 451:18-22. [DOI: 10.1016/j.ijpharm.2013.04.062] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 04/16/2013] [Accepted: 04/19/2013] [Indexed: 11/19/2022]
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Ulaszewska MM, Hernando MD, Moreno AU, García AV, García Calvo E, Fernández-Alba AR. Identification and quantification of poly(amidoamine) PAMAM dendrimers of generations 0 to 3 by liquid chromatography/hybrid quadrupole time-of-flight mass spectrometry in aqueous medium. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:747-762. [PMID: 23495021 DOI: 10.1002/rcm.6498] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 12/17/2012] [Accepted: 12/18/2012] [Indexed: 06/01/2023]
Abstract
RATIONALE Poly(amidoamine) PAMAM dendrimers are highly water soluble and are used as flexible scaffolding or nanocontainers to conjugate, complex or encapsulate therapeutic drugs to overcome intrinsically weak characteristics such as solubilization in aqueous medium. To provide a reliable method for the quantitation of PAMAM dendrimers in aqueous medium, we report here a validation study which was developed in a complex wastewater matrix to evaluate the matrix effect in the electrospray ionization (ESI) source. METHODS PAMAM dendrimers (generations G0 to G3) were identified and quantitated in aqueous medium using liquid chromatography interfaced to a hybrid quadrupole/time-of-flight mass analyzer. This approach used the high resolving power of isotopic clusters and mass accuracy of the instrument, with especial attention to the tandem mass spectrometric (MS/MS) capabilities. The formation of multiply charged ions of PAMAM dendrimers in the ESI source and their later fragmentation allowed fragmentation paths to be determined and structural assignments to be made. RESULTS The analytical strategy allowed dendrimer identification with a high degree of confidence obtained by accurate mass and high resolution with mass errors below 5 ppm and 10 ppm in MS and MS/MS modes. The parameters of validation in spiked matrix were: limits of quantification in the range of 0.12 to 1.25 μM depending on the generation, linearity (R >0.996), repeatability (R.S.D. <6.7%) and reproducibility (R.S.D. <10.8%). CONCLUSIONS Accurate mass measurement, elemental composition, and charge state assignment through the resolution of isotopic clusters of product and precursor ions, confers enhanced confidence on PAMAM dendrimer characterization. This selectivity provided high discriminating capacity of PAMAM dendrimers against matrix interferences. Because of the reliable and reproducible quantitation by LC/ESI-QTOF-MS, analysis of PAMAM dendrimers in an aqueous matrix is feasible.
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Affiliation(s)
- Maria Malgorzata Ulaszewska
- IMDEA-Agua (Instituto Madrileño De Estudios Avanzados-Agua), Parque Científico Tecnológico, University of Alcalá, 28805, Alcalá de Henares, Madrid, Spain
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Wilczewska AZ, Niemirowicz K, Markiewicz KH, Car H. Nanoparticles as drug delivery systems. Pharmacol Rep 2012; 64:1020-37. [DOI: 10.1016/s1734-1140(12)70901-5] [Citation(s) in RCA: 753] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 05/22/2012] [Indexed: 01/30/2023]
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Biodegradable Polymer-Curcumin Conjugate Micelles Enhance the Loading and Delivery of Low-Potency Curcumin. Pharm Res 2012; 29:3512-25. [DOI: 10.1007/s11095-012-0848-8] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 07/31/2012] [Indexed: 01/29/2023]
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Boridy S, Soliman GM, Maysinger D. Modulation of inflammatory signaling and cytokine release from microglia by celastrol incorporated into dendrimer nanocarriers. Nanomedicine (Lond) 2012; 7:1149-65. [DOI: 10.2217/nnm.12.16] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Aim: This study investigates the capacity of a potent anti-inflammatory nanomedicine, celastrol, incorporated into poly(amidoamine) dendrimers, to inhibit endotoxin-mediated signaling in microglia. Materials & methods: Celastrol was incorporated into amino (Cel/G4-NH2) and hydroxyl (Cel/G4-OH) terminus poly(amidoamine) (G4) dendrimers. Cell viability, release of nitric oxide, IL-6, TNF-α and activation of MAPK (e.g., p38 and JNK) and NF-κB were assessed in endotoxin (i.e., lipopolysaccharide) stimulated microglial cells. Results: G4-OH and G4-NH2 increased celastrol aqueous solubility by seven- and 12-fold, respectively. G4-OH and Cel/G4-OH suppressed lipopolysaccharide-mediated release of proinflammatory mediators, such as nitric oxide and IL-6, but not TNF-α, without reducing microglial cell viability, while Cel/G4-NH2 potentiated cytotoxicity and cytokine release. Blockade of proinflammatory signaling was accompanied by attenuation of p38 MAPK activation. Conclusion: This study supports the potential use of poly(amidoamine) dendrimers for effective anti-inflammatory therapy in the chronically inflamed CNS. Original submitted 22 July 2011; Revised submitted 8 December 2011; Published online 4 April 2012
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Affiliation(s)
- Sebastien Boridy
- Department of Pharmacology & Therapeutics, McGill University, 3655 Promenade Sir-William-Osler, Montreal, QC, H3G 1Y6, Canada
| | - Ghareb M Soliman
- Department of Pharmacology & Therapeutics, McGill University, 3655 Promenade Sir-William-Osler, Montreal, QC, H3G 1Y6, Canada
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Dusica Maysinger
- Department of Pharmacology & Therapeutics, McGill University, 3655 Promenade Sir-William-Osler, Montreal, QC, H3G 1Y6, Canada
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Winnicka K, Wroblewska M, Wieczorek P, Sacha PT, Tryniszewska E. Hydrogel of ketoconazole and PAMAM dendrimers: formulation and antifungal activity. Molecules 2012; 17:4612-24. [PMID: 22513487 PMCID: PMC6268403 DOI: 10.3390/molecules17044612] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 03/30/2012] [Accepted: 04/09/2012] [Indexed: 11/20/2022] Open
Abstract
Ketoconazole (KET), an imidazole derivative with well-known antifungal properties, is lipophilic and practically insoluble in water, therefore its clinical use has some practical disadvantages. The aim of the present study was to investigate the influence of PAMAM-NH2 and PAMAM-OH dendrimers generation 2 and generation 3 on the solubility and antifungal activity of KET and to design and evaluate KET hydrogel with PAMAM dendrimers. It was shown that the surface charge of PAMAM dendrimers strongly affects their influence on the improvement of solubility and antifungal activity of KET. The MIC and MFC values obtained by broth dilution method indicate that PAMAM-NH2 dendrimers significantly (up to 16-fold) increased the antifungal activity of KET against Candida strains (e.g., in culture Candida albicans 1103059/11 MIC value was 0.008 μg/mL and 0.064 μg/mL, and MFC was 2 μg/mL and 32 μg/mL for KET in 10 mg/mL solution of PAMAM-NH2 G2 and pure KET, respectively). Antifungal activity of designed KET hydrogel with PAMAM-NH2 dendrimers measured by the plate diffusion method was definitely higher than pure KET hydrogel and than commercial available product. It was shown that the improvement of solubility and in the consequence the higher KET release from hydrogels seems to be a very significant factor affecting antifungal activity of KET in hydrogels containing PAMAM dendrimers.
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Affiliation(s)
- Katarzyna Winnicka
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Białystok, Mickiewicza 2c, 15-222 Białystok, Poland;
- Author to whom correspondence should be addressed; ; Tel.: +48-85-748-56-15; Fax: +48-85-748-56-16
| | - Magdalena Wroblewska
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Białystok, Mickiewicza 2c, 15-222 Białystok, Poland;
| | - Piotr Wieczorek
- Department of Microbiological Diagnostics, Faculty of Pharmacy, Medical University of Białystok, Kilińskiego 1, 15-089 Białystok, Poland; (P.W.); (P.T.S.); (E.T.)
| | - Pawel Tomasz Sacha
- Department of Microbiological Diagnostics, Faculty of Pharmacy, Medical University of Białystok, Kilińskiego 1, 15-089 Białystok, Poland; (P.W.); (P.T.S.); (E.T.)
| | - Elzbieta Tryniszewska
- Department of Microbiological Diagnostics, Faculty of Pharmacy, Medical University of Białystok, Kilińskiego 1, 15-089 Białystok, Poland; (P.W.); (P.T.S.); (E.T.)
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Kaminskas LM, McLeod VM, Porter CJH, Boyd BJ. Association of chemotherapeutic drugs with dendrimer nanocarriers: an assessment of the merits of covalent conjugation compared to noncovalent encapsulation. Mol Pharm 2012; 9:355-73. [PMID: 22250750 DOI: 10.1021/mp2005966] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cancer is a leading cause of death within developed nations, and part of this morbidity is due to difficulties associated with its treatment. Currently, anticancer therapy relies heavily upon the administration of small molecule cytotoxic drugs that attack both cancerous and noncancerous cells due to limited selectivity of the drugs and widespread distribution of the cytotoxic molecules throughout the body. The antitumor efficacy and systemic toxicity of existing chemotherapeutic drugs can, however, be improved by employing formulation and particle engineering approaches. Thus, drug delivery systems can be developed that more specifically target tumor tissue using both passive (such as the enhanced permeation and retention effect) and active (through the use of cancer targeting ligands) modalities. Dendrimers are one such system that can be developed with high structural monodispersity, long plasma circulation times and precise control over surface structure and biodistribution properties. Chemotherapeutic drugs can be associated with dendrimers via covalent conjugation to the surface, or via encapsulation of drugs within the structure. Each of these approaches has demonstrated therapeutic benefit relative to the administration of free drug. Thus far, however, there has not been a systematic review toward which drug association approach will provide the best outcomes in terms of antitumor efficacy and systemic toxicity. Hence, the current literature is reviewed here and recommendations are proposed as to the suggested approach to develop dendrimers as tumor targeted drug-delivery vectors.
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Affiliation(s)
- Lisa M Kaminskas
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville, Victoria, Australia
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Kurmi BD, Gajbhiye V, Kayat J, Jain NK. Lactoferrin-Conjugated Dendritic Nanoconstructs for Lung Targeting of Methotrexate. J Pharm Sci 2011; 100:2311-20. [DOI: 10.1002/jps.22469] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2010] [Revised: 10/19/2010] [Accepted: 12/12/2010] [Indexed: 11/06/2022]
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Liu J, Liu J, Chu L, Wang Y, Duan Y, Feng L, Yang C, Wang L, Kong D. Novel peptide-dendrimer conjugates as drug carriers for targeting nonsmall cell lung cancer. Int J Nanomedicine 2010; 6:59-69. [PMID: 21289982 PMCID: PMC3025585 DOI: 10.2147/ijn.s14601] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Phage display technology has been demonstrated to be a powerful tool for screening useful ligands that are capable of specifically binding to biomarkers on the surface of tumor cells. The ligands found by this technique, such as peptides, have been successfully applied in the fields of early cancer diagnostics and chemotherapy. In this study, a novel nonsmall cell lung cancer-targeting peptide (LCTP, sequence RCPLSHSLICY) was screened in vivo using a Ph.D.-C7C(™) phage display library. In order to develop a universal tumor-targeting drug carrier, the LCTP and fluorescence-labeled molecule (FITC) were conjugated to an acetylated polyamidoamine (PAMAM) dendrimer of generation 4 (G4) to form a PAMAM-Ac-FITC-LCTP conjugate. The performance of the conjugate was first tested in vitro. In vitro results of cell experiments analyzed by flow cytometry and inverted fluorescence microscopy indicated that PAMAM-Ac-FITC-LCTP was enriched more in NCI-H460 cells than in 293T cells, and cellular uptake was both time- and dose-dependent. The tissue distribution of the conjugate in athymic mice with lung cancer xenografts was also investigated to test the targeting efficiency of PAMAM-Ac-FITC-LCTP in vivo. The results showed that LCTP can effectively facilitate the targeting of PAMAM-Ac-FITC-LCTP to nonsmall cell lung cancer cells and tumors. These results suggest that the LCTP-conjugated PAMAM dendrimer might be a promising drug carrier for targeted cancer diagnosis and treatment.
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Affiliation(s)
- Jianfeng Liu
- The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjian, People's Republic of China.
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Shen Y, Zhou Z, Sui M, Tang J, Xu P, Kirk EAV, Murdoch WJ, Fan M, Radosz M. Charge-reversal polyamidoamine dendrimer for cascade nuclear drug delivery. Nanomedicine (Lond) 2010; 5:1205-17. [DOI: 10.2217/nnm.10.86] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Aims: Polyamidoamine (PAMAM) dendrimers with primary amine termini have been extensively explored as drug and gene carriers owing to their unique properties, but their amine-carried cationic charges cause nonspecific cellular uptakes, systemic toxicity and other severe problems in in vivo applications. Method: In this article, we report a charge-reversal approach that latently deactivates PAMAM’s primary amines to negatively charged acid-labile amides in order to inhibit its nonspecific interaction with cells, but regenerates the active PAMAM once in acidic environments. Results: A cascade cancer cell nuclear drug delivery was achieved using the latently amidized PAMAM as the carrier conjugated with folic acid as the targeting group and a DNA-toxin drug camptothecin. The conjugate had low nonspecific interactions with cells, but easily entered cancer cells overexpressing folate receptors via receptor-mediated endocytosis. Subsequently, the endocytosed conjugate was transferred to acidic lysosomes, wherein the active PAMAM carrier was regenerated, escaped from the lysosome and then entered the nucleus for drug release. Conclusion: This reversible deactivation/activation makes PAMAM dendrimers useful nanocarriers for in vivo cancer cell nuclear-targeted drug delivery.
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Affiliation(s)
| | - Zhuxian Zhou
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
| | - Meihua Sui
- Center for Bionanoengineering & Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jianbin Tang
- Center for Bionanoengineering & Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Peisheng Xu
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
- College of Pharmacy, University of South Carolina, Columbia, SC 29208, USA
| | - Edward A Van Kirk
- Department of Animal Science, University of Wyoming, Laramie, WY, 82071, USA
| | - William J Murdoch
- Department of Animal Science, University of Wyoming, Laramie, WY, 82071, USA
| | - Maohong Fan
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
| | - Maciej Radosz
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
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Peptide and glycopeptide dendrimers and analogous dendrimeric structures and their biomedical applications. Amino Acids 2010; 40:301-70. [DOI: 10.1007/s00726-010-0707-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Accepted: 07/15/2010] [Indexed: 02/08/2023]
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Synthesis of novel dendrimers having aspartate grafts and their ability to enhance the aqueous solubility of model drugs. Eur J Med Chem 2010; 45:2705-11. [PMID: 20171762 DOI: 10.1016/j.ejmech.2010.01.069] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Revised: 01/26/2010] [Accepted: 01/28/2010] [Indexed: 11/24/2022]
Abstract
In this study, a series of aspartate based dendrimers with different cores were synthesized in a convergent approach and well characterized by NMR and MS techniques. The aqueous solubility of the model drugs (L-Histidine, Naproxen, Methotrexate) was measured in the presence of this kind of dendrimers at room temperature in PBS buffers at pH 6, 7 and 8. Results clearly confirmed that the solubility enhancement was due to presence of dendrimers at different pH compared to their corresponding aqueous solubility at different pH. The results indicated that the aspartate based dendrimers could be considered as an effective supplement of PAMAM dendrimers in solubility enhancement and drug delivery. The surface groups played an important role in dendrimer-mediated solubility enhancement.
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