1
|
Lokhande AS, Maurya V, Rani K, Parashar P, Gaind R, Tandon V, Devarajan PV. Polydispersity-mediated high efficacy of an in-situ aqueous nanosuspension of PPEF.3HCl in methicillin resistant Staphylococcus aureus sepsis model. Int J Pharm 2024; 655:123982. [PMID: 38460770 DOI: 10.1016/j.ijpharm.2024.123982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
Recently, World Health Organization declared antimicrobial resistance as the third greatest threat to human health. Absence of known cross-resistance, new class, new target, and a new mode of action are few major strategies being undertaken by researches to combat multidrug resistant pathogen. PPEF.3HCl, a bisbenzimidazole was developed as highly potent antibacterial agent against ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) pathogens, targeting topoisomerase IA. The present work encompasses a radical on-site generation of In-situ nanosuspension of PPEF.3HCl with enhanced efficacy against methicillin resistant S. aureus in septicemia model. We have generated instantaneously a PPEF.3HCl nanosuspension (IsPPEF.3HCl-NS) by mixing optimized monophasic PPEF.3HCl preconcentrate in propylene glycol into an aqueous medium comprising tween 80 as stabilizer. The IsPPEF.3HCl-NS showed precipitation efficiency of > 90 %, average particle size < 500 nm, retained upto 5 h, a negative zeta potential and bi/trimodal particle size distribution. Differential scanning calorimetry, X-ray diffraction confirmed partial amorphization and transmission electron microscopy revealed spherical particles. IsPPEF.3HCl-NS was non-hemolytic and exhibited good stability in serum. More significantly, it exhibited a ∼ 1.6-fold increase in macrophage uptake compared to free PPEF.3HCl in the RAW 264.7 macrophage cell line. Confocal microscopy revealed accumulation of IsPPEF.3HCl-NS within the lysosomal compartment and cell cytosol, proposing high efficacy. In terms of antimicrobial efficacy, IsPPEF.3HCl-NS outperforms free PPEF.3HCl against clinical methicillin sensitive and resistant S. aureus strains. In a pivotal experiment, IsPPEF.3HCl-NS exhibited over 83 % survival at 8 mg/kg.bw and an impressive reduction of ∼ 4-5 log-fold in bacterial load, primarily in the kidney, liver and spleen of septicemia mice. IsPPEF.3HCl-NS prepared by the In-situ approach, coupled with enhanced intramacrophage delivery and superior efficacy, positions IsPPEF.3HCl-NS as a pioneering and highly promising formulation in the battle against antimicrobial resistance.
Collapse
Affiliation(s)
- Amit S Lokhande
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, N. P. Marg, Matunga, Mumbai 400019, Maharashtra, India
| | - Vikas Maurya
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Komal Rani
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Palak Parashar
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Rajni Gaind
- Vardhaman Medical College Hospital, Safdarjung Hospital, New Delhi 110029, India
| | - Vibha Tandon
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India; CSIR-Indian Institute of Chemical Biology, Kolkata, West Bengal 700032, India.
| | - Padma V Devarajan
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, N. P. Marg, Matunga, Mumbai 400019, Maharashtra, India.
| |
Collapse
|
2
|
Xu N, Wong M, Balistreri G, Nance E. Neonatal Pharmacokinetics and Biodistribution of Polymeric Nanoparticles and Effect of Surfactant. Pharmaceutics 2023; 15:1176. [PMID: 37111661 PMCID: PMC10140984 DOI: 10.3390/pharmaceutics15041176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/28/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
The development of therapeutics for pediatric use has advanced in the last few decades, yet the off-label use of adult medications in pediatrics remains a significant clinical problem. Nano-based medicines are important drug delivery systems that can improve the bioavailability of a range of therapeutics. However, the use of nano-based medicines for application in pediatric populations is challenged by the lack of pharmacokinetic (PK) data in this population. To address this data gap, we investigated the PK of polymer-based nanoparticles in term-equivalent neonatal rats. We used poly(lactic-co-glycolic acid)-poly(ethylene glycol) (PLGA-PEG) nanoparticles, which are polymer nanoparticles that have been extensively studied in adult populations but less commonly applied in neonates and pediatrics. We quantified the PK parameters and biodistribution of PLGA-PEG nanoparticles in term-equivalent healthy rats and revealed the PK and biodistribution of polymeric nanoparticles in neonatal rats. We further explored the effects of surfactant used to stabilize PLGA-PEG particles on PK and biodistribution. We showed that 4 h post intraperitoneal injection, nanoparticles had the highest accumulation in serum, at 54.0% of the injected dose for particles with Pluronic® F127 (F127) as the stabilizer and at 54.6% of the injected dose for particles with Poloxamer 188 (P80) as the stabilizer. The half-life of the F127-formulated PLGA-PEG particles was 5.9 h, which was significantly longer than the 1.7 h half-life of P80-formulated PLGA-PEG particles. Among all organs, the liver had the highest nanoparticle accumulation. At 24 h after administration, the accumulation of F127-formulated PLGA-PEG particles was at 26.2% of the injected dose, and the accumulation of P80-formulated particles was at 24.1% of the injected dose. Less than 1% of the injected nanoparticles was observed in healthy rat brain for both F127- and P80-formulated particles. These PK data inform the use of polymer nanoparticle applications in the neonate and provide a foundation for the translation of polymer nanoparticles for drug delivery in pediatric populations.
Collapse
Affiliation(s)
- Nuo Xu
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA
| | - Megan Wong
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA
| | - Gabrielle Balistreri
- Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA 98195, USA
| | - Elizabeth Nance
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA
- Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA 98195, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Center for Human Development and Disability, University of Washington, Seattle, WA 98195, USA
| |
Collapse
|
3
|
Parrey S, Maseet M, Ahmad R, Khan AB. Deciphering the Kinetic Study of Sodium Dodecyl Sulfate on Ag Nanoparticle Synthesis Using Cassia siamea Flower Extract as a Reducing Agent. ACS OMEGA 2021; 6:12155-12167. [PMID: 34056369 PMCID: PMC8154150 DOI: 10.1021/acsomega.1c00847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
Silver nanoparticles (Ag NPs) were synthesized using Cassia siamea flower petal extract (CSFE) as a reducing agent for the first time. In its presence and absence, the correlative effects of the anionic surface-active agent sodium dodecyl sulfate (SDS) were studied with respect to the development and texture of Ag NPs. Under different reagent compositions, the Ag NPs were inferred by localized surface plasmon resonance peaks between 419 and 455 nm. In the absence of SDS, there was a small eminence at 290 and around 350 nm, pointing toward the possibility of irregular polytope Ag NPs, which was confirmed in the transmission electron microscopy images. This elevation vanished beyond the cmc of [SDS], resulting in spherical and oval shaped Ag NPs. The effects of reagent concentrations were studied at 25 °C and around 7 and 9 pH in the absence and presence of SDS, respectively. Also, kinetic studies were performed by UV-visible spectrophotometry. Prodigious effects on shape and size were found under different synthesis conditions in terms of hexagonal, rod-, irregular-, and spherical shaped Ag NPs. Furthermore, the antimycotic activity of the synthesized Ag NPs was established on different Candida strains, and best results were found pertaining Candida tropicalis. The ensuing study impels the control of texture and dispersity for Ag NPs by CSFE and SDS, and the resultant polytope Ag NPs could be a future solution for drug-resistant pathogenic fungi.
Collapse
Affiliation(s)
| | - Mohsin Maseet
- Department
of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Rabia Ahmad
- Department
of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Abbul Bashar Khan
- Department
of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| |
Collapse
|
4
|
Biodistribution of surfactant-free poly(lactic-acid) nanoparticles and uptake by endothelial cells and phagocytes in zebrafish: Evidence for endothelium to macrophage transfer. J Control Release 2021; 331:228-245. [PMID: 33444668 DOI: 10.1016/j.jconrel.2021.01.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 11/16/2020] [Accepted: 01/04/2021] [Indexed: 02/07/2023]
Abstract
In the development of therapeutic nanoparticles (NP), there is a large gap between in vitro testing and in vivo experimentation. Despite its prominence as a model, the mouse shows severe limitations for imaging NP and the cells with which they interact. Recently, the transparent zebrafish larva, which is well suited for high-resolution live-imaging, has emerged as a powerful alternative model to investigate the in vivo behavior of NP. Poly(D,L lactic acid) (PLA) is widely accepted as a safe polymer to prepare therapeutic NP. However, to prevent aggregation, many NP require surfactants, which may have undesirable biological effects. Here, we evaluate 'safe-by-design', surfactant-free PLA-NP that were injected intravenously into zebrafish larvae. Interaction of fluorescent NPs with different cell types labelled in reporter animals could be followed in real-time at high resolution; furthermore, by encapsulating colloidal gold into the matrix of PLA-NP we could follow their fate in more detail by electron microscopy, from uptake to degradation. The rapid clearance of fluorescent PLA-NP from the circulation coincided with internalization by endothelial cells lining the whole vasculature and macrophages. After 30 min, when no NP remained in circulation, we observed that macrophages continued to internalize significant amounts of NP. More detailed video-imaging revealed a new mechanism of NP transfer where NP are transmitted along with parts of the cytoplasm from endothelial cells to macrophages.
Collapse
|
5
|
Kakkar S, Singh M, Mohan Karuppayil S, Raut JS, Giansanti F, Papucci L, Schiavone N, Nag TC, Gao N, Yu FSX, Ramzan M, Kaur IP. Lipo-PEG nano-ocular formulation successfully encapsulates hydrophilic fluconazole and traverses corneal and non-corneal path to reach posterior eye segment. J Drug Target 2021; 29:631-650. [PMID: 33410357 DOI: 10.1080/1061186x.2020.1871483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The present study describes a special lipid-polyethylene glycol matrix solid lipid nanoparticles (SLNs; 138 nm; -2.07 mV) for ocular delivery. Success of this matrix to encapsulate (entrapment efficiency - 62.09%) a hydrophilic drug, fluconazole (FCZ-SLNs), with no burst release (67% release in 24 h) usually observed with most water-soluble drugs, is described presently. The system showed 164.64% higher flux than the marketed drops (Zocon®) through porcine cornea. Encapsulation within SLNs and slow release did not compromise efficacy of FCZ-SLNs. Latter showed in vitro and in vivo antifungal effects, including antibiofilm effects comparable to free FCZ solution. Developed system was safe and stable (even to sterilisation by autoclaving); and showed optimal viscosity, refractive index and osmotic pressure. These SLNs could reach up to retina following application as drops. The mechanism of transport via corneal and non-corneal transcellular pathways is described by fluorescent and TEM images of mice eye cross sections. Particles streamed through the vitreous, crossed inner limiting membrane and reached the outer retinal layers.
Collapse
Affiliation(s)
- Shilpa Kakkar
- UGC-Centre of Advanced Study, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Mandeep Singh
- UGC-Centre of Advanced Study, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Sankunny Mohan Karuppayil
- Department of Medical Biotechnology, Stem Cell & Regenerative Medicine, Center for Interdisciplinary Research, D. Y. Patil Educational Society, Kolhapur, India
| | - Jayant S Raut
- School of Life Sciences, SRTM University Nanded, Nanded, India
| | - Fabrizio Giansanti
- Department of Translational Medicine and Surgery, Eye Clinic, Florence, Italy
| | - Laura Papucci
- Department of Experimental and Clinical Biomedical Sciences, Section of Experimental Pathology and Oncology, University of Florence, Florence, Italy
| | - Nicola Schiavone
- Department of Experimental and Clinical Biomedical Sciences, Section of Experimental Pathology and Oncology, University of Florence, Florence, Italy
| | - T C Nag
- Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India
| | - Nan Gao
- Departments of Ophthalmology and Anatomy/Cell Biology, Kresge Eye Institute, Kresge, MI, USA
| | - Fu-Shin X Yu
- Departments of Ophthalmology and Anatomy/Cell Biology, Kresge Eye Institute, Kresge, MI, USA
| | - Mohhammad Ramzan
- UGC-Centre of Advanced Study, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Indu Pal Kaur
- UGC-Centre of Advanced Study, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| |
Collapse
|
6
|
Yang J, Dong Z, Liu W, He H, Fan W, Lu Y, Wu W, Gan L, Qi J. Discriminating against injectable fat emulsions with similar formulation based on water quenching fluorescent probe. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
7
|
Rabanel JM, Adibnia V, Tehrani SF, Sanche S, Hildgen P, Banquy X, Ramassamy C. Nanoparticle heterogeneity: an emerging structural parameter influencing particle fate in biological media? NANOSCALE 2019; 11:383-406. [PMID: 30560970 DOI: 10.1039/c8nr04916e] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Drug nanocarriers' surface chemistry is often presumed to be uniform. For instance, the polymer surface coverage and distribution of ligands on nanoparticles are described with averaged values obtained from quantification techniques based on particle populations. However, these averaged values may conceal heterogeneities at different levels, either because of the presence of particle sub-populations or because of surface inhomogeneities, such as patchy surfaces on individual particles. The characterization and quantification of chemical surface heterogeneities are tedious tasks, which are rather limited by the currently available instruments and research protocols. However, heterogeneities may contribute to some non-linear effects observed during the nanoformulation optimization process, cause problems related to nanocarrier production scale-up and correlate with unexpected biological outcomes. On the other hand, heterogeneities, while usually unintended and detrimental to nanocarrier performance, may, in some cases, be sought as adjustable properties that provide NPs with unique functionality. In this review, results and processes related to this issue are compiled, and perspectives and possible analytical developments are discussed.
Collapse
Affiliation(s)
- Jean-Michel Rabanel
- Centre INRS Institut Armand-Frappier, 531, boul. des Prairies, Laval, QC H7V 1B7, Canada.
| | - Vahid Adibnia
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Soudeh F Tehrani
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Steven Sanche
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Patrice Hildgen
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Xavier Banquy
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Charles Ramassamy
- Centre INRS Institut Armand-Frappier, 531, boul. des Prairies, Laval, QC H7V 1B7, Canada.
| |
Collapse
|
8
|
Rizvi SA, Saleh AM. Applications of nanoparticle systems in drug delivery technology. Saudi Pharm J 2018; 26:64-70. [PMID: 29379334 PMCID: PMC5783816 DOI: 10.1016/j.jsps.2017.10.012] [Citation(s) in RCA: 552] [Impact Index Per Article: 92.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 10/22/2017] [Indexed: 12/20/2022] Open
Abstract
The development of nanoparticle-based drug formulations has yielded the opportunities to address and treat challenging diseases. Nanoparticles vary in size but are generally ranging from 100 to 500 nm. Through the manipulation of size, surface characteristics and material used, the nanoparticles can be developed into smart systems, encasing therapeutic and imaging agents as well as bearing stealth property. Further, these systems can deliver drug to specific tissues and provide controlled release therapy. This targeted and sustained drug delivery decreases the drug related toxicity and increase patient's compliance with less frequent dosing. Nanotechnology has proven beneficial in the treatment of cancer, AIDS and many other disease, also providing advancement in diagnostic testing.
Collapse
Affiliation(s)
- Syed A.A. Rizvi
- Department of Pharmaceutical Sciences, College of Pharmacy, Health Professions Division, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, FL 33328, USA
| | - Ayman M. Saleh
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center (KAIMRC), King Abdulaziz Medical City, National Guard Health Affairs, Mail Code 6610, P. O. Box 9515, Jeddah 21423, Saudi Arabia
| |
Collapse
|
9
|
Pulmonary delivery of nanoparticle chemotherapy for the treatment of lung cancers: challenges and opportunities. Acta Pharmacol Sin 2017; 38:782-797. [PMID: 28504252 DOI: 10.1038/aps.2017.34] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 02/04/2017] [Indexed: 12/11/2022] Open
Abstract
Lung cancer is the second most prevalent and the deadliest among all cancer types. Chemotherapy is recommended for lung cancers to control tumor growth and to prolong patient survival. Systemic chemotherapy typically has very limited efficacy as well as severe systemic adverse effects, which are often attributed to the distribution of anticancer drugs to non-targeted sites. In contrast, inhalation routes permit the delivery of drugs directly to the lungs providing high local concentrations that may enhance the anti-tumor effect while alleviating systemic adverse effects. Preliminary studies in animals and humans have suggested that most inhaled chemotherapies are tolerable with manageable pulmonary adverse effects, including cough and bronchospasm. Promoting the deposition of anticancer drugs in tumorous cells and minimizing access to healthy lung cells can further augment the efficacy and reduce the risk of local toxicities caused by inhaled chemotherapy. Sustained release and tumor localization characteristics make nanoparticle formulations a promising candidate for the inhaled delivery of chemotherapeutic agents against lung cancers. However, the physiology of respiratory tracts and lung clearance mechanisms present key barriers for the effective deposition and retention of inhaled nanoparticle formulations in the lungs. Recent research has focused on the development of novel formulations to maximize lung deposition and to minimize pulmonary clearance of inhaled nanoparticles. This article systematically reviews the challenges and opportunities for the pulmonary delivery of nanoparticle formulations for the treatment of lung cancers.
Collapse
|
10
|
Tarhini M, Greige-Gerges H, Elaissari A. Protein-based nanoparticles: From preparation to encapsulation of active molecules. Int J Pharm 2017; 522:172-197. [PMID: 28188876 DOI: 10.1016/j.ijpharm.2017.01.067] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/26/2017] [Accepted: 01/29/2017] [Indexed: 11/29/2022]
Abstract
Nowadays, nanotechnology has become very integrated in the domain of pharmaceutical sciences since nanoparticle dispersions show various advantages as drug carriers. Among nanoparticles, the protein-based ones are of paramount importance. In fact, protein nanoparticles show many advantages over other types of nanoparticles, they are often non-toxic and biodegradable. In this review, the most common preparation methods of protein nanoparticles were targeted. In addition, the factors affecting their dispersions and the concepts of drug loading and drug release are also highlighted. It was obvious that each method can be optimized for a given protein. This issue was discussed in depth in the light of the current state of art, and supported by evidences for each method from the literature. In addition, it was concluded that the processing parameters strongly affect the properties of nanoparticles dispersion.
Collapse
Affiliation(s)
- Mohamad Tarhini
- Univ. Lyon, University Claude Bernard Lyon-1, CNRS, LAGEP UMR 5007, 43 boulevard du 11 November 1918, F-69100, Villeurbanne, France; Faculty of Sciences, Lebanese University, B.P. 90656, Jdaidet El-Matn, Lebanon
| | | | - Abdelhamid Elaissari
- Univ. Lyon, University Claude Bernard Lyon-1, CNRS, LAGEP UMR 5007, 43 boulevard du 11 November 1918, F-69100, Villeurbanne, France.
| |
Collapse
|
11
|
Joseph E, Saha RN. Investigations on pharmacokinetics and biodistribution of polymeric and solid lipid nanoparticulate systems of atypical antipsychotic drug: effect of material used and surface modification. Drug Dev Ind Pharm 2017; 43:678-686. [DOI: 10.1080/03639045.2016.1278014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Emil Joseph
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, India
| | - Ranendra N. Saha
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, India
| |
Collapse
|
12
|
Ryu TK, Kang RH, Jeong KY, Jun DR, Koh JM, Kim D, Bae SK, Choi SW. Bone-targeted delivery of nanodiamond-based drug carriers conjugated with alendronate for potential osteoporosis treatment. J Control Release 2016; 232:152-60. [PMID: 27094604 DOI: 10.1016/j.jconrel.2016.04.025] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 04/12/2016] [Accepted: 04/15/2016] [Indexed: 12/26/2022]
Abstract
This paper describes the design of alendronate-conjugated nanodiamonds (Alen-NDs) and evaluation of their feasibility for bone-targeted delivery. Alen-NDs exhibited a high affinity to hydroxyapatite (HAp, the mineral component of bone) due to the presence of Alen. Unlike NDs (without Alen), Alen-NDs were preferentially taken up by MC3T3-E1 osteoblast-like cells, compared to NIH3T3 and HepG2 cells, suggesting their cellular specificity. In addition, NDs itself increased ALP activity of MC3T3-E1 cells, compared to control group (osteogenic medium) and Alen-NDs exhibited more enhanced ALP activity. In addition, an in vivo study revealed that Alen-NDs effectively accumulated in bone tissues after intravenous tail vein injection. These results confirm the superior properties of Alen-NDs with advantages of high HAp affinity, specific uptake for MC3T3-E1 cells, positive synergistic effect for ALP activity, and in vivo bone targeting ability. The Alen-NDs can potentially be employed for osteoporosis treatment by delivering both NDs and Alen to bone tissue.
Collapse
Affiliation(s)
- Tae-Kyung Ryu
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro Wonmi-gu, Bucheon-si, Gyeonggi-do 420-743, Republic of Korea
| | - Rae-Hyoung Kang
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro Wonmi-gu, Bucheon-si, Gyeonggi-do 420-743, Republic of Korea
| | - Ki-Young Jeong
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro Wonmi-gu, Bucheon-si, Gyeonggi-do 420-743, Republic of Korea
| | - Dae-Ryong Jun
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro Wonmi-gu, Bucheon-si, Gyeonggi-do 420-743, Republic of Korea
| | - Jung-Min Koh
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
| | - Doyun Kim
- College of Pharmacy, The Catholic University of Korea, 43 Jibong-ro Wonmi-gu, Bucheon-si, Gyeonggi-do 420-743, Republic of Korea
| | - Soo Kyung Bae
- College of Pharmacy, The Catholic University of Korea, 43 Jibong-ro Wonmi-gu, Bucheon-si, Gyeonggi-do 420-743, Republic of Korea
| | - Sung-Wook Choi
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro Wonmi-gu, Bucheon-si, Gyeonggi-do 420-743, Republic of Korea.
| |
Collapse
|
13
|
Rinkenauer AC, Press AT, Raasch M, Pietsch C, Schweizer S, Schwörer S, Rudolph KL, Mosig A, Bauer M, Traeger A, Schubert US. Comparison of the uptake of methacrylate-based nanoparticles in static and dynamic in vitro systems as well as in vivo. J Control Release 2015; 216:158-68. [PMID: 26277064 DOI: 10.1016/j.jconrel.2015.08.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/23/2015] [Accepted: 08/04/2015] [Indexed: 12/17/2022]
Abstract
Polymer-based nanoparticles are promising drug delivery systems allowing the development of new drug and treatment strategies with reduced side effects. However, it remains a challenge to screen for new and effective nanoparticle-based systems in vitro. Important factors influencing the behavior of nanoparticles in vivo cannot be simulated in screening assays in vitro, which still represent the main tools in academic research and pharmaceutical industry. These systems have serious drawbacks in the development of nanoparticle-based drug delivery systems, since they do not consider the highly complex processes influencing nanoparticle clearance, distribution, and uptake in vivo. In particular, the transfer of in vitro nanoparticle performance to in vivo models often fails, demonstrating the urgent need for novel in vitro tools that can imitate aspects of the in vivo situation more accurate. Dynamic cell culture, where cells are cultured and incubated in the presence of shear stress has the potential to bridge this gap by mimicking key-features of organs and vessels. Our approach implements and compares a chip-based dynamic cell culture model to the common static cell culture and mouse model to assess its capability to predict the in vivo success more accurately, by using a well-defined poly((methyl methacrylate)-co-(methacrylic acid)) and poly((methyl methacrylate)-co-(2-dimethylamino ethylmethacrylate)) based nanoparticle library. After characterization in static and dynamic in vitro cell culture we were able to show that physiological conditions such as cell-cell communication of co-cultured endothelial cells and macrophages as well as mechanotransductive signaling through shear stress significantly alter cellular nanoparticle uptake. In addition, it could be demonstrated by using dynamic cell cultures that the in vivo situation is simulated more accurately and thereby can be applied as a novel system to investigate the performance of nanoparticle systems in vivo more reliable.
Collapse
Affiliation(s)
- Alexandra C Rinkenauer
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Adrian T Press
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany; Center for Sepsis Control and Care (CSCC), Jena University Hospital, Erlanger Allee 101, 07747 Jena, Germany
| | - Martin Raasch
- Center for Sepsis Control and Care (CSCC), Jena University Hospital, Erlanger Allee 101, 07747 Jena, Germany; Institute of Biochemistry II, Jena University Hospital, Friedrich Schiller University Jena, Nonnenplan 2, 07743 Jena, Germany
| | - Christian Pietsch
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Simon Schweizer
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Simon Schwörer
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany; Leibniz Institute for Age Research, Fritz Lipmann Institute Jena, Beutenbergstrasse 11, 07745 Jena, Germany
| | - Karl L Rudolph
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany; Leibniz Institute for Age Research, Fritz Lipmann Institute Jena, Beutenbergstrasse 11, 07745 Jena, Germany
| | - Alexander Mosig
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany; Center for Sepsis Control and Care (CSCC), Jena University Hospital, Erlanger Allee 101, 07747 Jena, Germany; Institute of Biochemistry II, Jena University Hospital, Friedrich Schiller University Jena, Nonnenplan 2, 07743 Jena, Germany
| | - Michael Bauer
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany; Center for Sepsis Control and Care (CSCC), Jena University Hospital, Erlanger Allee 101, 07747 Jena, Germany
| | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| |
Collapse
|
14
|
Lai DY. Approach to using mechanism-based structure activity relationship (SAR) analysis to assess human health hazard potential of nanomaterials. Food Chem Toxicol 2015; 85:120-6. [PMID: 26111809 DOI: 10.1016/j.fct.2015.06.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 06/11/2015] [Accepted: 06/12/2015] [Indexed: 12/28/2022]
Abstract
With the increasing use and development of engineered nanoparticles in electronics, consumer products, pesticides, food and pharmaceutical industries, there is a growing concern about potential human health hazards of these materials. A number of studies have demonstrated that nanoparticle toxicity is extremely complex, and that the biological activity of nanoparticles will depend on a variety of physicochemical properties such as particle size, shape, agglomeration state, crystal structure, chemical composition, surface area and surface properties. Nanoparticle toxicity can be attributed to nonspecific interaction with biological structures due to their physical properties (e.g., size and shape) and biopersistence, or to specific interaction with biomolecules through their surface properties (e.g., surface chemistry and reactivity) or release of toxic ions. The toxic effects of most nanomaterials have not been adequately characterized and currently, there are many issues and challenges in toxicity testing and risk assessment of nanoparticles. Based on the possible mechanisms of action and available in vitro and in vivo toxicity database, this paper proposes an approach to using mechanism-based SAR analysis to assess the relative human health hazard/risk potential of various types of nanomaterials.
Collapse
Affiliation(s)
- David Y Lai
- U.S. Environmental Protection Agency, Office of Pollution Prevention and Toxics, Risk Assessment Division, 1200 Pennsylvania Ave. N.W., Washington, DC, USA.
| |
Collapse
|
15
|
Detection of hepatocellular carcinoma in transgenic mice by Gd-DTPA- and rhodamine 123-conjugated human serum albumin nanoparticles in T1 magnetic resonance imaging. J Control Release 2015; 199:63-71. [DOI: 10.1016/j.jconrel.2014.11.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 11/17/2014] [Accepted: 11/23/2014] [Indexed: 12/13/2022]
|
16
|
Walczak AP, Hendriksen PJM, Woutersen RA, van der Zande M, Undas AK, Helsdingen R, van den Berg HHJ, Rietjens IMCM, Bouwmeester H. Bioavailability and biodistribution of differently charged polystyrene nanoparticles upon oral exposure in rats. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2015; 17:231. [PMID: 26028989 PMCID: PMC4440892 DOI: 10.1007/s11051-015-3029-y] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/04/2015] [Indexed: 05/22/2023]
Abstract
The likelihood of oral exposure to nanoparticles (NPs) is increasing, and it is necessary to evaluate the oral bioavailability of NPs. In vitro approaches could help reducing animal studies, but validation against in vivo studies is essential. Previously, we assessed the translocation of 50 nm polystyrene NPs of different charges (neutral, positive and negative) using a Caco-2/HT29-MTX in vitro intestinal translocation model. The NPs translocated in a surface charge-dependent manner. The present study aimed to validate this in vitro intestinal model by an in vivo study. For this, rats were orally exposed to a single dose of these polystyrene NPs and the uptake in organs was determined. A negatively charged NP was taken up more than other NPs, with the highest amounts in kidney (37.4 µg/g tissue), heart (52.8 µg/g tissue), stomach wall (98.3 µg/g tissue) and small intestinal wall (94.4 µg/g tissue). This partly confirms our in vitro findings, where the same NPs translocated to the highest extent. The estimated bioavailability of different types of NPs ranged from 0.2 to 1.7 % in vivo, which was much lower than in vitro (1.6-12.3 %). Therefore, the integrated in vitro model cannot be used for a direct prediction of the bioavailability of orally administered NPs. However, the model can be used for prioritizing NPs before further in vivo testing for risk assessment.
Collapse
Affiliation(s)
- Agata P. Walczak
- />Division of Toxicology, Wageningen University, Tuinlaan 5, 6703 HE Wageningen, The Netherlands
- />RIKILT Wageningen UR, P.O. Box 230, Akkermaalsbos 2, 6700 AE Wageningen, The Netherlands
| | - Peter J. M. Hendriksen
- />RIKILT Wageningen UR, P.O. Box 230, Akkermaalsbos 2, 6700 AE Wageningen, The Netherlands
| | - Ruud A. Woutersen
- />TNO Earth, Life and Social Sciences, Princetonlaan 6, 3584 CB Utrecht, The Netherlands
| | - Meike van der Zande
- />RIKILT Wageningen UR, P.O. Box 230, Akkermaalsbos 2, 6700 AE Wageningen, The Netherlands
| | - Anna K. Undas
- />RIKILT Wageningen UR, P.O. Box 230, Akkermaalsbos 2, 6700 AE Wageningen, The Netherlands
| | - Richard Helsdingen
- />RIKILT Wageningen UR, P.O. Box 230, Akkermaalsbos 2, 6700 AE Wageningen, The Netherlands
| | - Hans H. J. van den Berg
- />Division of Toxicology, Wageningen University, Tuinlaan 5, 6703 HE Wageningen, The Netherlands
| | - Ivonne M. C. M. Rietjens
- />Division of Toxicology, Wageningen University, Tuinlaan 5, 6703 HE Wageningen, The Netherlands
| | - Hans Bouwmeester
- />RIKILT Wageningen UR, P.O. Box 230, Akkermaalsbos 2, 6700 AE Wageningen, The Netherlands
| |
Collapse
|
17
|
Ourique AF, Chaves PDS, Souto GD, Pohlmann AR, Guterres SS, Beck RCR. Redispersible liposomal-N-acetylcysteine powder for pulmonary administration: development, in vitro characterization and antioxidant activity. Eur J Pharm Sci 2014; 65:174-82. [PMID: 25263567 DOI: 10.1016/j.ejps.2014.09.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 09/16/2014] [Accepted: 09/18/2014] [Indexed: 10/24/2022]
Abstract
Liposomal dry powders of N-acetylcysteine (SD-NAC-Lip) were developed for pulmonary administration. Liposomes were prepared by reverse phase evaporation and spray dried using lactose (10%, w/w) as drying adjuvant. The powders were characterized according to process yield, drug content, residual water content, particle size distribution, morphology and redispersion behavior. In vitro aerosol performance was evaluated using an eight-stage Andersen Cascade Impactor. Moreover, in vitro antioxidant activity was determined by measuring thiobarbituric acid reactive species (TBARS) present in the lungs of healthy Wistar rats after induction of oxidation by iron/EDTA. The spray-drying process had a high yield (71%±2), drug content (mg/g) according to the expected value, moisture content below 9%, geometric mean diameter under 3μm with span value lower than 1. Spherical particles were observed by scanning electron microscopy. Liposomal dry-powders were able to recover the nanometric size of the original dispersion after their redispersion in aqueous medium, as shown by laser diffraction and transmission electron microscopy. Furthermore, the powders presented aerodynamic diameter of about 7μm and respirable fraction above 30%, indicating suitable properties for pulmonary use. The encapsulation of N-acetylcysteine in liposomes was essential to maintain its in vitro antioxidant activity after the drying process. In addition, the powder containing the encapsulated drug had better in vitro antioxidant activity than the liquid and solid formulations containing the non-encapsulated drug, which makes it a good candidate for the treatment of pulmonary diseases associated with oxidative stress.
Collapse
Affiliation(s)
- Aline Ferreira Ourique
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Paula Dos Santos Chaves
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Gabriele Dadalt Souto
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Silvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Ruy Carlos Ruver Beck
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| |
Collapse
|
18
|
Yemparala V, Damre AA, Manohar V, Sharan Singh K, Mahajan GB, Sawant SN, Deokule T, Sivaramakrishnan H. Effect of the excipient concentration on the pharmacokinetics of PM181104, a novel antimicrobial thiazolyl cyclic peptide antibiotic, following intravenous administration to mice. RESULTS IN PHARMA SCIENCES 2014; 4:34-41. [PMID: 25756005 PMCID: PMC4348513 DOI: 10.1016/j.rinphs.2014.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/20/2014] [Accepted: 09/02/2014] [Indexed: 12/28/2022]
Abstract
Thiazolyl cyclic peptide antibiotics are known for their poor aqueous solubility and unfavorable pharmacokinetics (PK) and hence pose challenging tasks in developing these antibiotics as clinical candidates. In the current paper, we report a possible way to address these challenges with exemplification of our antibiotic PM181104. The approach was to prepare formulations with known excipients, Polysorbate 80 (Tween 80, T-80) and PEG 400 through their varied stiochiometric combination in appropriate ratio to achieve acceptable osmolarity, pH and particle size of the formulation. Two different sets of formulations were prepared with two distinct average particle diameters ranging from 32.8 to 465.4 nm. First, semi-transparent solutions with a particle size of >100 nm were achieved by keeping concentration of PEG 400 constant at 8% (w/v) and decreasing the amounts of T-80. Second, clear colorless solutions with a particle size of <100 nm were achieved by keeping concentration of T-80 constant at 8% (w/v) and decreasing the amounts of PEG 400. In PK studies, intravenous administration of formulation with particle size <100 nm to mice resulted in a two-fold increase in area under the plasma concentration-time curve (AUClast) and concentration at time zero (C0), there by facilitating the selection of suitable formulation for further efficacy studies.
Collapse
|
19
|
Lai P, Daear W, Löbenberg R, Prenner EJ. Overview of the preparation of organic polymeric nanoparticles for drug delivery based on gelatine, chitosan, poly(d,l-lactide-co-glycolic acid) and polyalkylcyanoacrylate. Colloids Surf B Biointerfaces 2014; 118:154-63. [DOI: 10.1016/j.colsurfb.2014.03.017] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 02/13/2014] [Accepted: 03/09/2014] [Indexed: 11/30/2022]
|
20
|
Martirosyan A, Schneider YJ. Engineered nanomaterials in food: implications for food safety and consumer health. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2014; 11:5720-50. [PMID: 24879486 PMCID: PMC4078545 DOI: 10.3390/ijerph110605720] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 04/02/2014] [Accepted: 05/14/2014] [Indexed: 01/08/2023]
Abstract
From the current state-of-the-art, it is clear that nanotechnology applications are expected to bring a range of benefits to the food sector aiming at providing better quality and conservation. In the meantime, a growing number of studies indicate that the exposure to certain engineered nanomaterials (ENMs) has a potential to lead to health complications and that there is a need for further investigations in order to unravel the biological outcomes of nanofood consumption. In the current review, we summarize the existing data on the (potential) use of ENMs in the food industry, information on the toxicity profiles of the commonly applied ENMs, such as metal (oxide) nanoparticles (NPs), address the potential food safety implications and health hazards connected with the consumption of nanofood. A number of health complications connected with the human exposure to ENMs are discussed, demonstrating that there is a real basis for the arisen concern not only connected with the gut health, but also with the potency to lead to systemic toxicity. The toxicological nature of hazard, exposure levels and risk to consumers from nanotechnology-derived food are on the earliest stage of investigation and this review also highlights the major gaps that need further research and regulation.
Collapse
Affiliation(s)
- Alina Martirosyan
- Laboratory of Cellular, Nutritional and Toxicological Biochemistry, Institute of Life Sciences (ISV) & UCLouvain, Louvain-la-Neuve B1348, Belgium.
| | - Yves-Jacques Schneider
- Laboratory of Cellular, Nutritional and Toxicological Biochemistry, Institute of Life Sciences (ISV) & UCLouvain, Louvain-la-Neuve B1348, Belgium.
| |
Collapse
|
21
|
Kreuter J. Drug delivery to the central nervous system by polymeric nanoparticles: what do we know? Adv Drug Deliv Rev 2014; 71:2-14. [PMID: 23981489 DOI: 10.1016/j.addr.2013.08.008] [Citation(s) in RCA: 332] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 08/14/2013] [Accepted: 08/15/2013] [Indexed: 02/06/2023]
Abstract
Nanoparticles enable the delivery of a great variety of drugs including anticancer drugs, analgesics, anti-Alzheimer's drugs, cardiovascular drugs, protease inhibitors, and several macromolecules into the brain after intravenous injection of animals. The mechanism of the nanoparticle-mediated drug transport across the BBB appears to be receptor-mediated endocytosis followed by transcytosis into the brain or by drug release within the endothelial cells. Modification of the nanoparticle surface with covalently attached targeting ligands or by coating with certain surfactants that lead to the adsorption of specific plasma proteins after injection is necessary for this receptor-mediated uptake. A very critical and important requirement for nanoparticulate brain delivery is that the employed nanoparticles are biocompatible and, moreover, rapidly biodegradable, i.e. over a time frame of a few days. In addition to enabling drug delivery to the brain, nanoparticles, as with doxorubicin, may importantly reduce the drug's toxicity and adverse effects due to an alteration of the body distribution. Because of the possibility to treat severe CNS diseases such as brain tumours and to even transport proteins and other macromolecules across the blood-brain barrier, this technology holds great promise for a non-invasive therapy of these diseases.
Collapse
Affiliation(s)
- Jörg Kreuter
- Institut für Pharmazeutische Technologie, Goethe-Universtät, Max-von-Laue-Str. 9, D-60438 Frankfurt, Germany.
| |
Collapse
|
22
|
Binjawadagi B, Dwivedi V, Manickam C, Ouyang K, Torrelles JB, Renukaradhya GJ. An innovative approach to induce cross-protective immunity against porcine reproductive and respiratory syndrome virus in the lungs of pigs through adjuvanted nanotechnology-based vaccination. Int J Nanomedicine 2014; 9:1519-35. [PMID: 24711701 PMCID: PMC3969340 DOI: 10.2147/ijn.s59924] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Porcine reproductive and respiratory syndrome (PRRS) is an economically devastating respiratory disease of pigs. The disease is caused by the PRRS virus (PRRSV), an Arterivirus which is a highly mutating RNA virus. Widely used modified live PRRSV vaccines have failed to prevent PRRS outbreaks and reinfections; moreover, safety of the live virus vaccines is questionable. Though poorly immunogenic, inactivated PRRSV vaccine is safe. The PRRSV infects primarily the lung macrophages. Therefore, we attempted to strengthen the immunogenicity of inactivated/killed PRRSV vaccine antigens (KAg), especially in the pig respiratory system, through: 1) entrapping the KAg in biodegradable poly(lactic-co-glycolic acid) nanoparticles (NP-KAg); 2) coupling the NP-KAg with a potent mucosal adjuvant, whole cell lysate of Mycobacterium tuberculosis (M. tb WCL); and 3) delivering the vaccine formulation twice intranasally to growing pigs. We have previously shown that a single dose of NP-KAg partially cleared the challenged heterologous PRRSV. Recently, we reported that NP-KAg coupled with unentrapped M. tb WCL significantly cleared the viremia of challenged heterologous PRRSV. Since PRRSV is primarily a lung disease, our goal in this study was to investigate lung viral load and various immune correlates of protection at the lung mucosal surfaces and its parenchyma in vaccinated heterologous PRRSV-challenged pigs. Our results indicated that out of five different vaccine-adjuvant formulations, the combination of NP-KAg and unentrapped M. tb WCL significantly cleared detectable replicating infective PRRSV with a tenfold reduction in viral RNA load in the lungs, associated with substantially reduced gross and microscopic lung pathology. Immunologically, strong humoral (enhanced virus neutralization titers by high avidity antibodies) and cell-mediated immune responses (augmented population of interferon-γ secreting CD4(+) and CD8(+) lymphocytes and reduced secretion of immunosuppressive cytokines) in the lungs were observed. In conclusion, combination of NP-KAg and soluble M. tb WCL elicits broadly cross-protective anti-PRRSV immunity in the pig respiratory system.
Collapse
Affiliation(s)
- Basavaraj Binjawadagi
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Wooster, OH, USA ; Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA
| | - Varun Dwivedi
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Wooster, OH, USA
| | - Cordelia Manickam
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Wooster, OH, USA ; Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA
| | - Kang Ouyang
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Wooster, OH, USA
| | - Jordi B Torrelles
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA
| | - Gourapura J Renukaradhya
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Wooster, OH, USA ; Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA
| |
Collapse
|
23
|
Tabatabaei Mirakabad FS, Nejati-Koshki K, Akbarzadeh A, Yamchi MR, Milani M, Zarghami N, Zeighamian V, Rahimzadeh A, Alimohammadi S, Hanifehpour Y, Joo SW. PLGA-Based Nanoparticles as Cancer Drug Delivery Systems. Asian Pac J Cancer Prev 2014; 15:517-35. [DOI: 10.7314/apjcp.2014.15.2.517] [Citation(s) in RCA: 256] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
24
|
New strategies to prolong the in vivo life span of iron-based contrast agents for MRI. PLoS One 2013; 8:e78542. [PMID: 24223101 PMCID: PMC3819506 DOI: 10.1371/journal.pone.0078542] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 09/19/2013] [Indexed: 01/12/2023] Open
Abstract
Superparamagnetic iron oxide (SPIO) and ultra small superparamagnetic iron oxide (USPIO) nanoparticles have been developed as magnetic resonance imaging (MRI) contrast agents. Iron oxide nanoparticles, that become superparamagnetic if the core particle diameter is ~ 30 nm or less, present R1 and R2 relaxivities which are much higher than those of conventional paramagnetic gadolinium chelates. Generally, these magnetic particles are coated with biocompatible polymers that prevent the agglomeration of the colloidal suspension and improve their blood distribution profile. In spite of their potential as MRI blood contrast agents, the biomedical application of iron oxide nanoparticles is still limited because of their intravascular half-life of only few hours; such nanoparticles are rapidly cleared from the bloodstream by macrophages of the reticulo-endothelial system (RES). To increase the life span of these MRI contrast agents in the bloodstream we proposed the encapsulation of SPIO nanoparticles in red blood cells (RBCs) through the transient opening of cell membrane pores. We have recently reported results obtained by applying our loading procedure to several SPIO nanoparticles with different chemical physical characteristics such as size and coating agent. In the current investigation we showed that the life span of iron-based contrast agents in the mice bloodstream was prolonged to 12 days after the intravenous injection of murine SPIO-loaded RBCs. Furthermore, we developed an animal model that implicates the pretreatment of animals with clodronate to induce a transient suppression of tissue macrophages, followed by the injection of human SPIO-loaded RBCs which make it possible to encapsulate nanoparticle concentrations (5.3-16.7 mM Fe) higher than murine SPIO-loaded RBCs (1.4-3.55 mM Fe). The data showed that, when human RBCs are used as more capable SPIO nanoparticle containers combined with a depletion of tissue macrophages, Fe concentration in animal blood is 2-3 times higher than iron concentration obtained by the use of murine SPIO-loaded RBCs.
Collapse
|
25
|
Nagpal K, Singh SK, Mishra DN. Drug targeting to brain: a systematic approach to study the factors, parameters and approaches for prediction of permeability of drugs across BBB. Expert Opin Drug Deliv 2013; 10:927-55. [DOI: 10.1517/17425247.2013.762354] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
26
|
Gilmore D, Schulz M, Liu R, Zubris KAV, Padera RF, Catalano PJ, Grinstaff MW, Colson YL. Cytoreductive surgery and intraoperative administration of paclitaxel-loaded expansile nanoparticles delay tumor recurrence in ovarian carcinoma. Ann Surg Oncol 2012; 20:1684-93. [PMID: 23128939 DOI: 10.1245/s10434-012-2696-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Indexed: 01/12/2023]
Abstract
BACKGROUND Locoregional recurrence significantly impacts survival and quality of life in patients with ovarian carcinoma. We hypothesize that local administration of paclitaxel-loaded expansile nanoparticles (pax-eNP) at the time of cytoreductive surgery decreases local tumor recurrence. METHODS In vitro cytotoxicity of pax-eNP was assessed against both the OVCAR-3 human ovarian cancer cell line and tumor cells isolated from a malignant pleural effusion from a patient with multidrug-resistant ovarian cancer. A murine xenogenic model involving surgical cytoreduction of established OVCAR-3 intra-abdominal tumor was used to evaluate in vivo efficacy of intraoperative intraperitoneal (IP) injection of 10 mg/kg of paclitaxel either as pax-eNP or paclitaxel in Cremophor EL/ethanol solution (pax-C/E) versus empty eNP controls. Cytoreductive surgery and intraoperative treatment were performed 4 weeks after established tumor. All animals were sacrificed when empty eNP controls displayed extensive evidence of disease progression. RESULTS Labeled-eNP entered tumor cells in vitro within 4 h and specifically accumulated at sites of tumor in vivo. Pax-eNP exhibited dose-dependent cytotoxicity in both OVCAR-3 and patient tumor cells isolated from a malignant pleural effusion and effectively prevented tumor recurrence following debulking (p = 0.003 vs. empty eNP). Furthermore, pax-eNP-treated animals did not develop severe recurrent carcinomatosis compared with 43 % of the pax-C/E-treated cohort, suggesting that single-dose intracavitary pax-eNP is more effective than an equivalent dose of pax-C/E. CONCLUSIONS Expansile nanoparticles readily enter human ovarian tumor cells and localize to sites of tumor in vivo with pax-eNP cytotoxicity resulting in superior inhibition of locoregional tumor recurrence following cytoreductive surgery.
Collapse
Affiliation(s)
- Denis Gilmore
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, MA, USA.
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Evaluation of new bi-functional terpolymeric nanoparticles for simultaneous in vivo optical imaging and chemotherapy of breast cancer. Drug Deliv Transl Res 2012; 2:437-53. [DOI: 10.1007/s13346-012-0103-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
28
|
Han L, Fu Y, Cole AJ, Liu J, Wang J. Co-encapsulation and sustained-release of four components in ginkgo terpenes from injectable PELGE nanoparticles. Fitoterapia 2012; 83:721-31. [PMID: 22414318 DOI: 10.1016/j.fitote.2012.02.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 02/23/2012] [Accepted: 02/25/2012] [Indexed: 11/30/2022]
Abstract
It is difficult to develop injectable sustained delivery systems for herbal medicines because of their composition complexity. Encapsulating various compounds with different physiochemical properties and achieving their synchronized and sustained release seem too hard to realize. In this paper, an injectable nanoparticulate system based on an mPEG-PLGA-mPEG (PELGE) platform was prepared for co-encapsulation and sustained release of four active components (ginkgolides A, B, C and bilobalide) in Ginkgo biloba extract. Different carriers were screened by macrophage uptake experiment for their ability to be long-circulation. Drug loaded nanoparticles were prepared with 10% PEG(2000) modified PLGA by a co-precipitation method. The encapsulation efficiency of the total ginkgo terpenes (GT) in the optimal formulation was 78.84±2.06% with a loading dose of 11.90±0.31mg/150mg PELGE. The particles exhibited a spherical shape with a mean diameter of 123.3±44.0nm and zeta potential of -30.86±2.49mV. Sustained and synchronized release of the four components from PELGE nanoparticles was observed both in vitro and in vivo, which was mainly contributed to the long circulation of PEGylated nanoparticles and the slow degradation of PLGA. The half-life time of the four terpenoid compounds were also significantly improved by incorporation into PELGE nanoparticles. The results indicate that a PELGE nanoparticle is a promising carrier system for sustained and synchronized release of herbal medicines containing multiple components.
Collapse
Affiliation(s)
- Limei Han
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | | | | | | | | |
Collapse
|
29
|
Saraceno R, Chiricozzi A, Gabellini M, Chimenti S. Emerging applications of nanomedicine in dermatology. Skin Res Technol 2011; 19:e13-9. [PMID: 22175818 DOI: 10.1111/j.1600-0846.2011.00601.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2011] [Indexed: 12/17/2022]
Abstract
BACKGROUND Nanotechnology is a new branch of engineering consisting of the usage of nanoscale particles (100 nm and smaller). Nanomedicine is the application of nanoscale technologies for diagnostic and therapeutic purposes in medicine. Nanodermatology, nanotechnology applied to dermatology, represents one of the most advanced field for which an increasing interest, both economic and scientific, is rising. The skin is the first point of contact for a whole host of nanomaterials, ranging from topical preparations, articles of clothing and household products, to sporting goods and industrial manufactured goods. Applications of nanomedicine in dermatology include new direction in medical diagnosis, monitoring and treatment. Gold nanoparticle, quantum dots and magnetic nanoparticles are used in non-invasive nanoimaging of high-resolution dermoscopy, microscopy, nanopunch, and spectroscopy, offering advanced diagnostic and therapeutic modalities. Nanotherapeutics has been considered in immunotherapy, genetherapy, and drug therapy. In drug therapy, because of size reduction or encapsulation of drug particles, the therapeutic potential of water insoluble and unstable drugs improve, and also facilitate the delivery of small molecules across blood, skin, nails, and pilosebaceous unit. AIMS To review therapeutic applications and benefits of nanomedicine in esthetic dermatology, treatment of malignancies, and inflammatory skin diseases.
Collapse
Affiliation(s)
- Rosita Saraceno
- Department of Dermatology, University of Rome Tor Vergata, Rome, Italy.
| | | | | | | |
Collapse
|
30
|
Lai DY. Toward toxicity testing of nanomaterials in the 21st century: a paradigm for moving forward. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2011; 4:1-15. [PMID: 21965171 DOI: 10.1002/wnan.162] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A challenge-facing hazard identification and safety evaluation of engineered nanomaterials being introduced to market is the diversity and complexity of the types of materials with varying physicochemical properties, many of which can affect their toxicity by different mechanisms. In general, in vitro test systems have limited usefulness for hazard identification of nanoparticles due to various issues. Meanwhile, conducting chronic toxicity/carcinogenicity studies in rodents for every new nanomaterial introduced into the commerce is impractical if not impossible. New toxicity testing systems which rely on predictive, high-throughput technologies may be the ultimate goal of evaluating the potential hazard of nanomaterials. However, at present, this approach alone is unlikely to succeed in evaluating the toxicity of the wide array of nanomaterials and requires validation from in vivo studies. This article proposes a paradigm for toxicity testing and elucidation of the molecular mechanisms of reference materials for specific nanomaterial classes/subclasses using short-term in vivo animal studies in conjunction with high-throughput screenings and mechanism-based short-term in vitro assays. The hazard potential of a particular nanomaterial can be evaluated by conducting only in vitro high-throughput assays and mechanistic studies and comparing the data with those of the reference materials in the specific class/subclass-an approach in line with the vision for 'Toxicity Testing in the 21st Century' of chemicals. With well-designed experiments, testing nanomaterials of varying/selected physicochemical parameters may be able to identify the physicochemical parameters contributing to toxicity. The data so derived could be used for the development of computer model systems to predict the hazard potential of specific nanoparticles based on property-activity relationships.
Collapse
Affiliation(s)
- David Y Lai
- U.S. Environmental Protection Agency, Office of Pollution Prevention and Toxics, Risk Assessment Division, Washington, DC, USA.
| |
Collapse
|
31
|
|
32
|
Swaminathan TN, Liu J, Balakrishnan U, Ayyaswamy PS, Radhakrishnan R, Eckmann DM. Dynamic factors controlling carrier anchoring on vascular cells. IUBMB Life 2011; 63:640-7. [PMID: 21721099 DOI: 10.1002/iub.475] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2011] [Accepted: 03/28/2011] [Indexed: 11/05/2022]
Abstract
This article reviews experimental and modeling methods for determining the critical roles played by the various factors that control nanocarrier drug delivery to vascular endothelial cells.
Collapse
Affiliation(s)
- Tirumani N Swaminathan
- Department of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, USA
| | | | | | | | | | | |
Collapse
|
33
|
Card JW, Jonaitis TS, Tafazoli S, Magnuson BA. An appraisal of the published literature on the safety and toxicity of food-related nanomaterials. Crit Rev Toxicol 2010; 41:22-49. [DOI: 10.3109/10408444.2010.524636] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
34
|
|
35
|
Abstract
This review is presented as a common foundation for scientists interested in nanoparticles, their origin,activity, and biological toxicity. It is written with the goal of rationalizing and informing public health concerns related to this sometimes-strange new science of "nano," while raising awareness of nanomaterials' toxicity among scientists and manufacturers handling them.We show that humans have always been exposed to tiny particles via dust storms, volcanic ash, and other natural processes, and that our bodily systems are well adapted to protect us from these potentially harmful intruders. There ticuloendothelial system, in particular, actively neutralizes and eliminates foreign matter in the body,including viruses and nonbiological particles. Particles originating from human activities have existed for millennia, e.g., smoke from combustion and lint from garments, but the recent development of industry and combustion-based engine transportation has profoundly increased an thropogenic particulate pollution. Significantly, technological advancement has also changed the character of particulate pollution, increasing the proportion of nanometer-sized particles--"nanoparticles"--and expanding the variety of chemical compositions. Recent epidemiological studies have shown a strong correlation between particulate air pollution levels, respiratory and cardiovascular diseases, various cancers, and mortality. Adverse effects of nanoparticles on human health depend on individual factors such as genetics and existing disease, as well as exposure, and nanoparticle chemistry, size, shape,agglomeration state, and electromagnetic properties. Animal and human studies show that inhaled nanoparticles are less efficiently removed than larger particles by the macrophage clearance mechanisms in the lungs, causing lung damage, and that nanoparticles can translocate through the circulatory, lymphatic, and nervous systems to many tissues and organs, including the brain. The key to understanding the toxicity of nanoparticles is that their minute size, smaller than cells and cellular organelles, allows them to penetrate these basic biological structures, disrupting their normal function.Examples of toxic effects include tissue inflammation, and altered cellular redox balance toward oxidation, causing abnormal function or cell death. The manipulation of matter at the scale of atoms,"nanotechnology," is creating many new materials with characteristics not always easily predicted from current knowledge. Within the nearly limitless diversity of these materials, some happen to be toxic to biological systems, others are relatively benign, while others confer health benefits. Some of these materials have desirable characteristics for industrial applications, as nanostructured materials often exhibit beneficial properties, from UV absorbance in sunscreen to oil-less lubrication of motors.A rational science-based approach is needed to minimize harm caused by these materials, while supporting continued study and appropriate industrial development. As current knowledge of the toxicology of "bulk" materials may not suffice in reliably predicting toxic forms of nanoparticles,ongoing and expanded study of "nanotoxicity" will be necessary. For nanotechnologies with clearly associated health risks, intelligent design of materials and devices is needed to derive the benefits of these new technologies while limiting adverse health impacts. Human exposure to toxic nanoparticles can be reduced through identifying creation-exposure pathways of toxins, a study that may someday soon unravel the mysteries of diseases such as Parkinson's and Alzheimer's. Reduction in fossil fuel combustion would have a large impact on global human exposure to nanoparticles, as would limiting deforestation and desertification.While nanotoxicity is a relatively new concept to science, this review reveals the result of life's long history of evolution in the presence of nanoparticles, and how the human body, in particular, has adapted to defend itself against nanoparticulate intruders.
Collapse
|
36
|
Al-Hallak MHDK, Azarmi S, Sun C, Lai P, Prenner EJ, Roa WH, Löbenberg R. Pulmonary toxicity of polysorbate-80-coated inhalable nanoparticles; in vitro and in vivo evaluation. AAPS JOURNAL 2010; 12:294-9. [PMID: 20405258 DOI: 10.1208/s12248-010-9190-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2010] [Accepted: 03/29/2010] [Indexed: 11/30/2022]
Affiliation(s)
- M H D Kamal Al-Hallak
- Faculty of Pharmacy and Pharmaceutical Sciences, 3126 Dentistry/Pharmacy Centre, University of Alberta, Edmonton, Alberta T6G2N8, Canada
| | | | | | | | | | | | | |
Collapse
|
37
|
Chen H, Wang L, Yeh J, Wu X, Cao Z, Wang YA, Zhang M, Yang L, Mao H. Reducing non-specific binding and uptake of nanoparticles and improving cell targeting with an antifouling PEO-b-PgammaMPS copolymer coating. Biomaterials 2010; 31:5397-407. [PMID: 20398933 DOI: 10.1016/j.biomaterials.2010.03.036] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2010] [Accepted: 03/15/2010] [Indexed: 02/01/2023]
Abstract
One of the major limitations impeding the sensitivity and specificity of biomarker targeted nanoparticles is non-specific binding by biomolecules and uptake by the reticuloendothelial system (RES). We report the development of an antibiofouling polysiloxane containing amphiphilic diblock copolymer, poly(ethylene oxide)-block-poly(gamma-methacryloxypropyl trimethoxysilane) (PEO-b-PgammaMPS), for coating and functionalizing high quality hydrophobic nanocrystals such as iron oxide nanoparticles and quantum dots. These PEO-b-PgammaMPS-coated nanocrystals were colloidally stable in biological medium and showed low non-specific binding by macromolecules after incubation with 100% fetal bovine serum. Both in vitro experiments with macrophages and in vivo biodistribution studies in mice revealed that PEO-b-PgammaMPS copolymer-coated nanocrystals have an antibiofouling effect that reduces non-specific cell and RES uptake. Surface functionalization with amine groups was accomplished through co-crosslinking the polysiloxane coating layer and (3-Aminopropyl)trimethoxysilane in aqueous solution. Tumor integrin alpha(v)beta(3) targeting peptide cyclo-RGD ligands were conjugated on the nanoparticles through a heterobifunctional linker. The resulting integrin alpha(v)beta(3) targeting nanoparticle conjugates showed improved cancer cell targeting with a stronger affinity to U87MG glioma cells, which have a high expression of alpha(v)beta(3) integrins, but minimal binding to MCF-7 breast cancer cells with low expression of alpha(v)beta(3) integrins.
Collapse
Affiliation(s)
- Hongwei Chen
- Department of Radiology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Mozafari MR, Pardakhty A, Azarmi S, Jazayeri JA, Nokhodchi A, Omri A. Role of nanocarrier systems in cancer nanotherapy. J Liposome Res 2010; 19:310-21. [PMID: 19863166 DOI: 10.3109/08982100902913204] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cancer continues to be a major cause of morbidity and mortality worldwide. While discovery of new drugs and cancer chemotherapy opened a new era for the treatment of tumors, optimized concentration of drug at the target site is only possible at the expense of severe side effects. Nanoscale carrier systems have the potential to limit drug toxicity and achieve tumor localization. When linked with tumor-targeting moieties, such as tumor-specific ligands or monoclonal antibodies, the nanocarriers can be used to target cancer-specific receptors, tumor antigens, and tumor vasculatures with high affinity and precision. This article is an overview of advances and prospects in the applications of nanocarrier technology in cancer therapy. Applications of nanoliposomes, dendrimers, and nanoparticles in cancer therapy are explained, along with their preparation methods and targeting strategies.
Collapse
Affiliation(s)
- M R Mozafari
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.
| | | | | | | | | | | |
Collapse
|
39
|
|
40
|
Savić R, Eisenberg A, Maysinger D. Block copolymer micelles as delivery vehicles of hydrophobic drugs: Micelle–cell interactions. J Drug Target 2008; 14:343-55. [PMID: 17092835 DOI: 10.1080/10611860600874538] [Citation(s) in RCA: 154] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
One-third of drugs in development are water insoluble and one-half fail in trials because of poor pharmacokinetics. Block copolymer micelles are nanosized particles that can solubilize hydrophobic drugs and alter their kinetics in vitro and in vivo. However, block copolymer micelles are not solely passive drug containers that simply solubilize hydrophobic drugs; cells internalize micelles. To facilitate the development of advanced, controlled, micellar drug delivery vehicles, we have to understand the fate of micelles and micelle-incorporated drugs in cells and in vivo. With micelle-based drug formulations recently reaching clinical trials, the impetus for answers is ever so strong and detailed studies of interactions of micelles and cells are starting to emerge. Most notably, the question arises: Is the internalization of block copolymer micelles carrying small molecular weight drugs an undesired side effect or a useful means of improving the effectiveness of the incorporated drugs?
Collapse
Affiliation(s)
- Radoslav Savić
- Department of Pharmacology & Therapeutics, McGill University, Montreal, Quebec, Canada
| | | | | |
Collapse
|
41
|
Wu PC, Su CH, Cheng FY, Weng JC, Chen JH, Tsai TL, Yeh CS, Su WC, Hwu JR, Tzeng Y, Shieh DB. Modularly Assembled Magnetite Nanoparticles Enhance in Vivo Targeting for Magnetic Resonance Cancer Imaging. Bioconjug Chem 2008; 19:1972-9. [DOI: 10.1021/bc800092w] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ping-Ching Wu
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Chia-Hao Su
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Fong-Yu Cheng
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Jun-Cheng Weng
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Jyh-Horng Chen
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Tsung-Lin Tsai
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Chen-Sheng Yeh
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Wu-Chou Su
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Jih Ru Hwu
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Yonhua Tzeng
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| | - Dar-Bin Shieh
- Institute of Basic Medical Sciences and Department of Chemistry, National Cheng Kung University, Tainan 701, Interdisciplinary MRI/MRS Laboratory, Department of Electrical Engineering, National Taiwan University, Taipei 112, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 704, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Department of Electrical Engineering and Institute of Innovation and Advanced Studies, National Cheng Kung University College
| |
Collapse
|
42
|
Azarmi S, Roa WH, Löbenberg R. Targeted delivery of nanoparticles for the treatment of lung diseases. Adv Drug Deliv Rev 2008; 60:863-75. [PMID: 18308418 DOI: 10.1016/j.addr.2007.11.006] [Citation(s) in RCA: 290] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Accepted: 11/22/2007] [Indexed: 02/02/2023]
Abstract
Targeted delivery of drug molecules to organs or special sites is one of the most challenging research areas in pharmaceutical sciences. By developing colloidal delivery systems such as liposomes, micelles and nanoparticles a new frontier was opened for improving drug delivery. Nanoparticles with their special characteristics such as small particle size, large surface area and the capability of changing their surface properties have numerous advantages compared with other delivery systems. Targeted nanoparticle delivery to the lungs is an emerging area of interest. This article reviews research performed over the last decades on the application of nanoparticles administered via different routes of administration for treatment or diagnostic purposes. Nanotoxicological aspects of pulmonary delivery are also discussed.
Collapse
|
43
|
Lee SM, Lee SH, Kang HY, Baek SY, Kim SM, Shin MJ. Assessment of Musculoskeletal Infection in Rats to Determine Usefulness of SPIO-Enhanced MRI. AJR Am J Roentgenol 2007; 189:542-8. [PMID: 17715098 DOI: 10.2214/ajr.07.2213] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
OBJECTIVE The objective of our study was to evaluate the usefulness of superparamagnetic iron oxide (SPIO)-enhanced MRI in experimental models of infectious disease and to analyze the intracellular uptake of SPIO. MATERIALS AND METHODS Nine rats with infectious arthritis of the knee or soft-tissue infection were imaged on an MRI unit on days 4-6 after i.v. injection of a bacterial suspension. All animals were imaged on a T2-weighted fast spin-echo sequence before and 24 hours after administration of SPIO. The nine rats were classified into two groups according to the dose of SPIO. We calculated the relative signal-to-noise ratio (SNR) change and compared the relative SNR change with the histologic findings. We analyzed iron-loaded cells and the intracellular uptake of iron particles according to the dose of SPIO. RESULTS The SNR value decreased in proportion to the increase in the number of iron-laden macrophages or fibroblasts in the wall of the soft-tissue abscess (p < 0.01). The intracellular uptake of iron particles was shown in fibroblasts as well as in macrophages, and their uptake in the fibroblasts was greater than that in the macrophages (p < 0.05). There was no statistically significant difference in the intracellular uptake of iron particles according to the dose of SPIO (p > 0.1). CONCLUSION SPIO-enhanced MRI can be useful in evaluating infectious disease of the joint or soft tissue and is influenced by the uptake of iron particles in fibroblasts as well as macrophages.
Collapse
Affiliation(s)
- Sang Min Lee
- Department of Radiology, Bundang CHA General Hospital, College of Medicine, Pochon CHA University, Kyonggi-do 463-712, Korea
| | | | | | | | | | | |
Collapse
|
44
|
Hagens WI, Oomen AG, de Jong WH, Cassee FR, Sips AJAM. What do we (need to) know about the kinetic properties of nanoparticles in the body? Regul Toxicol Pharmacol 2007; 49:217-29. [PMID: 17868963 DOI: 10.1016/j.yrtph.2007.07.006] [Citation(s) in RCA: 216] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2007] [Revised: 07/05/2007] [Accepted: 07/27/2007] [Indexed: 11/16/2022]
Abstract
Nowadays the development and applications of nanotechnology are of major importance in both industrial and consumer areas. However, the knowledge on human exposure and possible toxicity of nanotechnology products is limited. To understand the mechanism of toxicity, thorough knowledge of the toxicokinetic properties of nanoparticles is warranted. There is a need for information on the absorption, distribution, metabolism and excretion (ADME) of nanoparticles and validated detection methods of these man-made nanoparticles. Determination of the ADME properties of nanoparticles requires specialised detection methods in different biological matrices (e.g. blood and organs). In this paper, the current knowledge on the kinetic properties of nanoparticles is reviewed. Moreover, knowledge gaps from a kinetic point of view (detection, dose, ADME processes) are identified.
Collapse
Affiliation(s)
- Werner I Hagens
- Centre for Substances and Integrated Risk Assessment (SIR), National Institute for Public Health and the Environment (RIVM), Antonie van Leeuwenhoeklaan 9, P.O. Box 1, 3720 BA Bilthoven, The Netherlands.
| | | | | | | | | |
Collapse
|
45
|
Maysinger D, Lovrić J, Eisenberg A, Savić R. Fate of micelles and quantum dots in cells. Eur J Pharm Biopharm 2007; 65:270-81. [PMID: 17027243 DOI: 10.1016/j.ejpb.2006.08.011] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2006] [Revised: 08/16/2006] [Accepted: 08/17/2006] [Indexed: 01/19/2023]
Abstract
Micelles and quantum dots have been used as experimental drug delivery systems and imaging tools both in vitro and in vivo. Investigations of their fate at the subcellular level require different surface-core modifications. Among the most common modifications are those with fluorescent probes, dense-core metals or radionucleids. Cellular fate of several fluorescent probes incorporated into poly(caprolactone)-b-copolymer micelles (PCL-b-PEO) was followed by confocal microscopy, and colloidal gold incorporated in poly 4-vinyl pyridine-PEO micelles were developed to explore micelle fate by electron microscopy. More recently, we have examined quantum dots (QDs) as the next-generation-labels for cells and nanoparticulate drug carriers amenable both to confocal and electron microscopic analyses. Effects of QDs at the cellular and subcellular levels and their integrity were studied. Results from different studies suggest that size, charge and surface manipulations of QDs may play a role in their subcellular distribution. Examples of pharmacological agents incorporated into block copolymer micelles, administered or attached to QD surfaces show how the final biological outcome (e.g. cell death, proliferation or differentiation) depends on physical properties of these nanoparticles.
Collapse
Affiliation(s)
- Dusica Maysinger
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada.
| | | | | | | |
Collapse
|
46
|
Rana S, Gallo A, Srivastava RS, Misra RDK. On the suitability of nanocrystalline ferrites as a magnetic carrier for drug delivery: functionalization, conjugation and drug release kinetics. Acta Biomater 2007; 3:233-42. [PMID: 17224313 DOI: 10.1016/j.actbio.2006.10.006] [Citation(s) in RCA: 245] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2006] [Revised: 10/06/2006] [Accepted: 10/24/2006] [Indexed: 11/17/2022]
Abstract
Superparamagnetic nickel ferrite nanoparticles functionalized with polyvinyl alcohol, polyethylene oxide and polymethacrylic acid (PMAA) polymers and subsequently conjugated with doxorubicin anti-cancer drug are studied for their use as a magnetic carrier for drug delivery. Fourier transform infrared spectroscopy enabled examination of the ability of the nanoparticles to be functionalized with polymers and conjugated with doxorubicin drug. The functionalized polymer-coated nanocrystalline nickel ferrites retain the magnetic characteristics of non-functionalized nanocrystalline nickel ferrites (superparamagnetism, absence of hysteresis, remanence and coercivity at room temperature), encouraging their application as a magnetic carrier for drug delivery. The PMAA-coated nanoferrites are demonstrated as being a potentially superior magnetically targeted drug carrier based on FTIR results and drug release kinetics in the absence and presence of an external magnetic field.
Collapse
Affiliation(s)
- S Rana
- Center for Structural and Functional Materials, University of Louisiana at Lafayette, PO Box 44130, Lafayette, LA 70504-4130, USA
| | | | | | | |
Collapse
|
47
|
Ambruosi A, Khalansky AS, Yamamoto H, Gelperina SE, Begley DJ, Kreuter J. Biodistribution of polysorbate 80-coated doxorubicin-loaded [14C]-poly(butyl cyanoacrylate) nanoparticles after intravenous administration to glioblastoma-bearing rats. J Drug Target 2006; 14:97-105. [PMID: 16608736 DOI: 10.1080/10611860600636135] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
It was recently shown that doxorubicin (DOX) bound to polysorbate-coated nanoparticles (NP) crossed the intact blood-brain barrier (BBB), and thus reached therapeutic concentrations in the brain. Here, we investigated the biodistribution in the brain and in the body of poly(butyl-2-cyano[3-(14)C]acrylate) NP ([(14)C]-PBCA NP), polysorbate 80 (PS 80)-coated [(14)C]-PBCA NP, DOX-loaded [(14)C]-PBCA NP in glioblastoma 101/8-bearing rats after i.v. injection. The biodistribution profiles and brain concentrations of radiolabeled NP were determined by radioactivity counting after i.v. administration in rats. Changes in BBB permeability after tumour inoculation were assessed by i.v. injection of Evans Blue solution. The accumulation of NP in the tumour site and in the contralateral hemisphere in glioblastoma bearing-rats probably was augmented by the enhanced permeability and retention effect (EPR effect) that may have been becoming instrumental due to the impaired BBB on the NP delivery into the brain. The uptake of the NP by the organs of the reticuloendothelial system (RES) was reduced after PS 80-coating, but the addition of DOX increased again the concentration of NP in the RES.
Collapse
Affiliation(s)
- Alessandra Ambruosi
- Institute of Pharmaceutical Technology, Johann Wolfgang Goethe-University, Marie-Curie-Strasse 9, 60439, Frankfurt am Main, Germany
| | | | | | | | | | | |
Collapse
|
48
|
Oberdörster G, Maynard A, Donaldson K, Castranova V, Fitzpatrick J, Ausman K, Carter J, Karn B, Kreyling W, Lai D, Olin S, Monteiro-Riviere N, Warheit D, Yang H. Principles for characterizing the potential human health effects from exposure to nanomaterials: elements of a screening strategy. Part Fibre Toxicol 2005; 2:8. [PMID: 16209704 PMCID: PMC1260029 DOI: 10.1186/1743-8977-2-8] [Citation(s) in RCA: 1079] [Impact Index Per Article: 56.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2005] [Accepted: 10/06/2005] [Indexed: 12/13/2022] Open
Abstract
The rapid proliferation of many different engineered nanomaterials (defined as materials designed and produced to have structural features with at least one dimension of 100 nanometers or less) presents a dilemma to regulators regarding hazard identification. The International Life Sciences Institute Research Foundation/Risk Science Institute convened an expert working group to develop a screening strategy for the hazard identification of engineered nanomaterials. The working group report presents the elements of a screening strategy rather than a detailed testing protocol. Based on an evaluation of the limited data currently available, the report presents a broad data gathering strategy applicable to this early stage in the development of a risk assessment process for nanomaterials. Oral, dermal, inhalation, and injection routes of exposure are included recognizing that, depending on use patterns, exposure to nanomaterials may occur by any of these routes. The three key elements of the toxicity screening strategy are: Physicochemical Characteristics, In Vitro Assays (cellular and non-cellular), and In Vivo Assays. There is a strong likelihood that biological activity of nanoparticles will depend on physicochemical parameters not routinely considered in toxicity screening studies. Physicochemical properties that may be important in understanding the toxic effects of test materials include particle size and size distribution, agglomeration state, shape, crystal structure, chemical composition, surface area, surface chemistry, surface charge, and porosity. In vitro techniques allow specific biological and mechanistic pathways to be isolated and tested under controlled conditions, in ways that are not feasible in in vivo tests. Tests are suggested for portal-of-entry toxicity for lungs, skin, and the mucosal membranes, and target organ toxicity for endothelium, blood, spleen, liver, nervous system, heart, and kidney. Non-cellular assessment of nanoparticle durability, protein interactions, complement activation, and pro-oxidant activity is also considered. Tier 1 in vivo assays are proposed for pulmonary, oral, skin and injection exposures, and Tier 2 evaluations for pulmonary exposures are also proposed. Tier 1 evaluations include markers of inflammation, oxidant stress, and cell proliferation in portal-of-entry and selected remote organs and tissues. Tier 2 evaluations for pulmonary exposures could include deposition, translocation, and toxicokinetics and biopersistence studies; effects of multiple exposures; potential effects on the reproductive system, placenta, and fetus; alternative animal models; and mechanistic studies.
Collapse
Affiliation(s)
- Günter Oberdörster
- Department of Environmental Medicine, University of Rochester, 601 Elmwood Avenue, P.O. Box EHSC, Rochester, NY 14642, USA
| | - Andrew Maynard
- Project on Emerging Nanotechnologies, Woodrow Wilson International Center for Scholars, 1300 Pennsylvania Avenue, N.W., Washington, DC 20004-3027, USA
| | - Ken Donaldson
- MRC/University of Edinburgh Centre for Inflammation Research, ELEGI Colt Laboratory Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Vincent Castranova
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505, USA
| | - Julie Fitzpatrick
- Risk Science Institute, ILSI Research Foundation, International Life Sciences Institute, One Thomas Circle, N.W., Suite 900, Washington, DC 20005-5802, USA
| | - Kevin Ausman
- Center for Biological and Environmental Nanotechnology, MS-63, P.O. Box 1892, Rice University, Houston, TX 77251-1892, USA
| | - Janet Carter
- Respiratory/Inhalation Toxicology, Central Product Safety, Procter & Gamble Company, PO Box 538707, Cincinnati, OH 45253-8707, USA
| | - Barbara Karn
- Office of Research and Development, United States Environmental Protection Agency, Ariel Rios Building, Mail Code: 8722F, 1200 Pennsylvania Avenue, N.W., Washington, DC 20460, USA
- Project on Emerging Nanotechnologies, Woodrow Wilson International Center for Scholars, 1300 Pennsylvania Avenue, N.W., Washington, DC 20004-3027, USA
| | - Wolfgang Kreyling
- Institute for Inhalation Biology & Focus Network: Aerosols and Health, GSF National Research Centre for Environment and Health, Ingolstadter Landstrasse 1, 85764 Neuherberg, Munich, Germany
| | - David Lai
- Risk Assessment Division, Office of Pollution Prevention & Toxics, United States Environmental Protection Agency, 7403M, 1200 Pennsylvania Avenue, N.W., Washington, DC 20460, USA
| | - Stephen Olin
- Risk Science Institute, ILSI Research Foundation, International Life Sciences Institute, One Thomas Circle, N.W., Suite 900, Washington, DC 20005-5802, USA
| | - Nancy Monteiro-Riviere
- Center for Chemical Toxicology and Research Pharmacokinetics, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough Street, Raleigh, NC 27606, USA
| | - David Warheit
- DuPont Haskell Laboratory for Health and Environmental Sciences, P.O. Box 50, 1090 Elkton Road, Newark, DE 19714-0050, USA
| | - Hong Yang
- Department of Chemical Engineering, University of Rochester, Gavett Hall 253, Rochester, NY 14627, USA
| | | |
Collapse
|
49
|
Qin J, Jo YS, Ihm JE, Kim DK, Muhammed M. Thermosensitive nanospheres with a gold layer revealed as low-cytotoxic drug vehicles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:9346-51. [PMID: 16171372 DOI: 10.1021/la051069t] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
In this paper, the positive effect of a gold layer on cell viability is demonstrated by examining the results given by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfop henyl)-2H-tetrazolium (MTS) assay and two-color cell fluorescence viability (TCCV) assay. These cytotoxicity tests were performed with human cervical adenocarcinoma cells (HeLa cell line) and transformed African green monkey kidney fibroblast cells (Cos-7 cell line). To fabricate the nanostructures as drug vehicles, first, poly(l,l-lactide-co-ethylene glycol) (PLLA-PEG) and poly(N-isopropylacrylamide-co-D,D-lactide) (PNIPAAm-PDLA) were synthesized, and then two kinds of thermosensitive nanospheres comprising "shell-in-shell" structures without a gold layer (PLLA-PEG@PNIPAAm-PDLA) and with a gold layer (Au@PLLA-PEG@PNIPAAm-PDLA) were constructed by a modified double-emulsion method (MDEM). Both of them displayed a unique thermosensitive character exhibiting the lower critical solubility temperature (LCST) at 36.7 degrees C which was confirmed by UV-vis spectroscopy and differential scanning calorimetry (DSC). The release profiles of entrapped bovine serum albumin (BSA) were monitored at 22 and 37 degrees C, respectively, to reveal the thermal dependence on the release rate. In cell viability tests, both PLLA-PEG@PNIPAAm-PDLA and Au@PLLA-PEG@PNIPAAm-PDLA showed excellent cell viability, and furthermore, Au@PLLA-PEG@PNIPAAm-PDLA, particularly at high doses, exhibited more enhanced cell viability than PLLA-PEG@PNIPAAm-PDLA. This effect is mainly attributed to the gold layer which binds the protein molecules first and consequently facilitates transmembrane uptake of essential nutrients in the cell media, resulting in favorable cell proliferation.
Collapse
Affiliation(s)
- Jian Qin
- Materials Chemistry Division, Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | | | | | | | | |
Collapse
|
50
|
Ueno Y, Futagawa H, Takagi Y, Ueno A, Mizushima Y. Drug-incorporating calcium carbonate nanoparticles for a new delivery system. J Control Release 2005; 103:93-8. [PMID: 15710503 DOI: 10.1016/j.jconrel.2004.11.015] [Citation(s) in RCA: 150] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2004] [Accepted: 11/09/2004] [Indexed: 11/21/2022]
Abstract
We devised a simple method for incorporating drugs into solid calcium carbonate nanoparticles (nano-CaCO3). The size of nano-CaCO3 was controlled by mixing speed. Washing the nanoparticles released little incorporated drug but much drug that was adsorbed on the surface. In an in vitro releasing test, granulocyte colony-stimulating factor incorporated in nano-CaCO3 was chemically stable and released very slowly. Subcutaneous injection of nano-CaCO3 incorporating betamethasone phosphate (BP) resulted in a smaller initial increase in plasma concentration and a subsequent sustained release in compared with betamethasone phosphate solution. Nano-CaCO3 may be useful to deliver hydrophilic drugs and bioactive proteins.
Collapse
Affiliation(s)
- Y Ueno
- Institute of DDS, Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo 105-8461, Japan
| | | | | | | | | |
Collapse
|