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McDonald MF, Hossain A, Momin EN, Hasan I, Singh S, Adachi S, Gumin J, Ledbetter D, Yang J, Long L, Daou M, Gopakumar S, Phillips LM, Parker Kerrigan B, Lang FF. Tumor-specific polycistronic miRNA delivered by engineered exosomes for the treatment of glioblastoma. Neuro Oncol 2024; 26:236-250. [PMID: 37847405 PMCID: PMC10836765 DOI: 10.1093/neuonc/noad199] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND Glioblastoma (GBM) has poor prognosis due to ineffective agents and poor delivery methods. MicroRNAs (miRs) have been explored as novel therapeutics for GBM, but the optimal miRs and the ideal delivery strategy remain unresolved. In this study, we sought to identify the most effective pan-subtype anti-GBM miRs and to develop an improved delivery system for these miRs. METHODS We conducted an unbiased screen of over 600 miRs against 7 glioma stem cell (GSC) lines representing all GBM subtypes to identify a set of pan-subtype-specific anti-GBM miRs and then used available TCGA GBM patient outcomes and miR expression data to hone in on miRs that were most likely to be clinically effective. To enhance delivery and expression of the miRs, we generated a polycistronic plasmid encoding 3 miRs (pPolymiR) and used HEK293T cells as biofactories to package pPolymiR into engineered exosomes (eExos) that incorporate viral proteins (Gag/VSVg) in their structure (eExos+pPolymiR) to enhance function. RESULTS Our stepwise screen identified miR-124-2, miR-135a-2, and let-7i as the most effective miRs across all GBM subtypes with clinical relevance. Delivery of eExos+pPolymiR resulted in high expression of all 3 miRs in GSCs, and significantly decreased GSC proliferation in vitro. eExos+pPolymiR prolonged survival of GSC-bearing mice in vivo when compared with eExos carrying each of the miRs individually or as a cocktail. CONCLUSION eExos+pPolymiR, which includes a pan-subtype anti-glioma-specific miR combination encoded in a polycistronic plasmid and a novel exosome delivery platform, represents a new and potentially powerful anti-GBM therapeutic.
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Affiliation(s)
- Malcolm F McDonald
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Anwar Hossain
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Eric N Momin
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Irtiza Hasan
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sanjay Singh
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Satoshi Adachi
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Joy Gumin
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Daniel Ledbetter
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jing Yang
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Lihong Long
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Marc Daou
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sricharan Gopakumar
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Lynette M Phillips
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Brittany Parker Kerrigan
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Frederick F Lang
- Department of Neurosurgery and The Brain Tumor Research Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Gatto MS, Najahi-Missaoui W. Lyophilization of Nanoparticles, Does It Really Work? Overview of the Current Status and Challenges. Int J Mol Sci 2023; 24:14041. [PMID: 37762348 PMCID: PMC10530935 DOI: 10.3390/ijms241814041] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Nanoparticles are being increasingly used as drug delivery systems to enhance the delivery to and uptake by target cells and to reduce off-target toxicity of free drugs. However, although the advantages of nanoparticles as drug carriers are clear, there are still some limitations, especially in maintaining their long-term stability. Lyophilization, also known as freeze-drying, has been heavily investigated as a solution to this problem. This strategy has been shown to be effective in increasing both the long-term stability of nanoparticles and the shelf life of the drug product. However, the process is still in need of improvement in several aspects, such as the process parameters, formulation factors, and characterization techniques. This review summarizes the advantages and limitations of nanoparticles for the treatment of disease, advantages and limitations, and the status of the lyophilization of nanoparticles for therapeutic use and provides insight into both the advantages and the limitations.
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Affiliation(s)
| | - Wided Najahi-Missaoui
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, GA 30602, USA;
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3
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Mukherjee S, Diéguez C, Fernø J, López M. Obesity wars: hypothalamic sEVs a new hope. Trends Mol Med 2023:S1471-4914(23)00088-6. [PMID: 37210227 DOI: 10.1016/j.molmed.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/23/2023] [Accepted: 04/26/2023] [Indexed: 05/22/2023]
Abstract
There are currently several pharmacological therapies available for the treatment of obesity, targeting both the central nervous system (CNS) and peripheral tissues. In recent years, small extracellular vesicles (sEVs) have been shown to be involved in many pathophysiological conditions. Because of their special nanosized structure and contents, sEVs can activate receptors and trigger intracellular pathways in recipient cells. Notably, in addition to transferring molecules between cells, sEVs can also alter their phenotypic characteristics. The purpose of this review is to discuss how sEVs can be used as a CNS-targeted strategy for treating obesity. Furthermore, we will evaluate current findings, such as the sEV-mediated targeting of hypothalamic AMP-activated protein kinase (AMPK), and discuss how they can be translated into clinical application.
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Affiliation(s)
- Sayani Mukherjee
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain; Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway.
| | - Carlos Diéguez
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain
| | - Johan Fernø
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway; Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Miguel López
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain.
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Jones G, Zeng L, Stiles WR, Park SH, Kang H, Choi HS, Kim J. Pharmacokinetics and tissue distribution of deferoxamine-based nanochelator in rats. Nanomedicine (Lond) 2022; 17:1649-1662. [PMID: 36547231 PMCID: PMC9869290 DOI: 10.2217/nnm-2022-0159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 11/14/2022] [Indexed: 12/24/2022] Open
Abstract
Aim: To characterize the pharmacokinetics of deferoxamine-conjugated nanoparticles (DFO-NPs), a novel nanochelator for removing excess iron. Materials & methods: The pharmacokinetics of DFO-NPs were evaluated in Sprague-Dawley rats at three doses (3.3, 10 and 30 μmol/kg) after intravenous and subcutaneous administration. Results: DFO-NPs exhibited a biphasic concentration-time profile after intravenous administration with a short terminal half-life (2.0-3.2 h), dose-dependent clearance (0.111-0.179 l/h/kg), minimal tissue distribution and exclusive renal excretion with a possible saturable reabsorption mechanism. DFO-NPs after subcutaneous administration exhibited absorption-rate-limited kinetics with a prolonged half-life (5.7-10.1 h) and favorable bioavailability (47-107%). Conclusion: DFO-NPs exhibit nonlinear pharmacokinetics with increasing dose, and subcutaneous administration substantially improves drug exposure, thereby making it a clinically viable administration route for iron chelation.
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Affiliation(s)
- Gregory Jones
- Department of Pharmaceutical Sciences, Bouve College of Health Sciences, Northeastern University, Boston, MA 02115, USA
| | - Lingxue Zeng
- Department of Biomedical & Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Wesley R Stiles
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital & Harvard Medical School, Boston, MA 02114, USA
| | - Seung Hun Park
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital & Harvard Medical School, Boston, MA 02114, USA
| | - Homan Kang
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital & Harvard Medical School, Boston, MA 02114, USA
| | - Hak Soo Choi
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital & Harvard Medical School, Boston, MA 02114, USA
| | - Jonghan Kim
- Department of Biomedical & Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
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Yu J, Mu Q, Fung M, Xu X, Zhu L, Ho RJY. Challenges and opportunities in metastatic breast cancer treatments: Nano-drug combinations delivered preferentially to metastatic cells may enhance therapeutic response. Pharmacol Ther 2022; 236:108108. [PMID: 34999182 PMCID: PMC9256851 DOI: 10.1016/j.pharmthera.2022.108108] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/12/2021] [Accepted: 01/03/2022] [Indexed: 02/07/2023]
Abstract
Despite advances in breast cancer treatments and related 5-year survival outcomes, metastatic breast cancer cures remain elusive. The current standard of care includes a combination of surgery, radiation therapy and drug therapy. However, even the most advanced procedures and treatments do not prevent breast cancer recurrence and metastasis. Once metastasis occurs, patient prognosis is poor. Recent elucidation of the spatiotemporal transit of metastatic cancer cells from primary tumor sites to distant sites provide an opportunity to integrate knowledge of drug disposition in our effort to enhance drug localization and exposure in cancer laden tissues . Novel technologies have been developed, but could be further refined to facilitate the distribution of drugs to target cancer cells and tissues. The purpose of this review is to highlight the challenges in metastatic breast cancer treatment and focus on novel drug combination and nanotechnology approaches to overcome the challenges. With improved definition of metastatic tissue target, directed localization and retention of multiple, pharmacologically active drugs to tissues and cells of interest may overcome the limitations in breast cancer treatment that may lead to a cure for breast cancer.
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Affiliation(s)
- Jesse Yu
- Department of Pharmaceutics, University of Washington, Seattle, WA 98195, USA
| | - Qingxin Mu
- Department of Pharmaceutics, University of Washington, Seattle, WA 98195, USA
| | - Millie Fung
- Department of Pharmaceutics, University of Washington, Seattle, WA 98195, USA
| | - Xiaolin Xu
- Department of Pharmaceutics, University of Washington, Seattle, WA 98195, USA
| | - Linxi Zhu
- Department of Pharmaceutics, University of Washington, Seattle, WA 98195, USA
| | - Rodney J Y Ho
- Department of Pharmaceutics, University of Washington, Seattle, WA 98195, USA; Department of Bioengineering, University of Washington, Seattle, WA 98195, USA.
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Ullah A, Yin X, Wang F, Xu B, Mirani ZA, Xu B, Chan MWH, Ali A, Usman M, Ali N, Naveed M. Biosynthesis of Selenium Nanoparticles (via Bacillus subtilis BSN313), and Their Isolation, Characterization, and Bioactivities. Molecules 2021; 26:5559. [PMID: 34577029 PMCID: PMC8468162 DOI: 10.3390/molecules26185559] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 11/17/2022] Open
Abstract
Among the trace elements, selenium (Se) has great demand as a health supplement. Compared to its other forms, selenium nanoparticles have minor toxicity, superior reactivity, and excellent bioavailability. The present study was conducted to produce selenium nanoparticles (SeNPs) via a biosynthetic approach using probiotic Bacillus subtilis BSN313 in an economical and easy manner. The BSN313 exhibited a gradual increase in Se reduction and production of SeNPs up to 5-200 µg/mL of its environmental Se. However, the capability was decreased beyond that concentration. The capacity for extracellular SeNP production was evidenced by the emergence of red color, then confirmed by a microscopic approach. Produced SeNPs were purified, freeze-dried, and subsequently characterized systematically using UV-Vis spectroscopy, FTIR, Zetasizer, SEM-EDS, and TEM techniques. SEM-EDS analysis proved the presence of selenium as the foremost constituent of SeNPs. With an average particle size of 530 nm, SeNPs were shown to have a -26.9 (mV) zeta potential and -2.11 µm cm/Vs electrophoretic mobility in water. SeNPs produced during both the 24 and 48 h incubation periods showed good antioxidant activity in terms of DPPH and ABST scavenging action at a concentration of 150 µg/mL with no significant differences (p > 0.05). Moreover, 200 µg/mL of SeNPs showed antibacterial reactivity against Escherichia coli ATCC 8739, Staphylococcus aureus ATCC 9027, and Pseudomonas aeruginosa ATCC 25923. In the future, this work will be helpful to produce biogenic SeNPs using probiotic Bacillus subtilis BSN313 as biofactories, with the potential for safe use in biomedical and nutritional applications.
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Affiliation(s)
- Asad Ullah
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
- Food and Marine Resources Research Center, Pakistan Council of Scientific and Industrial Research Laboratories Complex, Karachi 75280, Pakistan;
| | - Xian Yin
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Fenghuan Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Bo Xu
- McIntire School of Commerce, University of Virginia, Charlottesville, VA 22903, USA
| | - Zulfiqar Ali Mirani
- Food and Marine Resources Research Center, Pakistan Council of Scientific and Industrial Research Laboratories Complex, Karachi 75280, Pakistan;
| | - Baocai Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Malik Wajid Hussain Chan
- Centre of Excellence in Marine Biology, University of Karachi, Karachi 75270, Pakistan; (M.W.H.C.); (A.A.)
| | - Amjad Ali
- Centre of Excellence in Marine Biology, University of Karachi, Karachi 75270, Pakistan; (M.W.H.C.); (A.A.)
| | - Muhammad Usman
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
| | - Nawazish Ali
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Muhammad Naveed
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
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Recent trends in biodegradable polyester nanomaterials for cancer therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 127:112198. [PMID: 34225851 DOI: 10.1016/j.msec.2021.112198] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 05/12/2021] [Accepted: 05/18/2021] [Indexed: 12/19/2022]
Abstract
Biodegradable polyester nanomaterials-based drug delivery vehicles (DDVs) have been largely used in most of the cancer treatments due to its high biological performance and wider applications. In several previous studies, various biodegradable and biocompatible polyester backbones were used which are poly(lactic acid) (PLA), poly(ε-caprolactone) (PCL), poly(propylene fumarate) (PPF), poly(lactic-co-glycolic acid) (PLGA), poly(propylene carbonate) (PPC), polyhydroxyalkanoates (PHA), and poly(butylene succinate) (PBS). These polyesters were fabricated into therapeutic nanoparticles that carry drug molecules to the target site during the cancer disease treatment. In this review, we elaborately discussed the chemical synthesis of different synthetic polyesters and their use as nanodrug carriers (NCs) in cancer treatment. Further, we highlighted in brief the recent developments of metal-free semi-aromatic polyester nanomaterials along with its role as cancer drug delivery vehicles.
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Haghniaz R, Rabbani A, Vajhadin F, Khan T, Kousar R, Khan AR, Montazerian H, Iqbal J, Libanori A, Kim HJ, Wahid F. Anti-bacterial and wound healing-promoting effects of zinc ferrite nanoparticles. J Nanobiotechnology 2021; 19:38. [PMID: 33546702 PMCID: PMC7866648 DOI: 10.1186/s12951-021-00776-w] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/12/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Increasing antibiotic resistance continues to focus on research into the discovery of novel antimicrobial agents. Due to its antimicrobial and wound healing-promoting activity, metal nanoparticles have attracted attention for dermatological applications. This study is designed to investigate the scope and bactericidal potential of zinc ferrite nanoparticles (ZnFe2O4 NPs), and the mechanism of anti-bacterial action along with cytocompatibility, hemocompatibility, and wound healing properties. RESULTS ZnFe2O4 NPs were synthesized via a modified co-precipitation method. Structure, size, morphology, and elemental compositions of ZnFe2O4 NPs were analyzed using X-ray diffraction pattern, Fourier transform infrared spectroscopy, and field emission scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy. In PrestoBlue and live/dead assays, ZnFe2O4 NPs exhibited dose-dependent cytotoxic effects on human dermal fibroblasts. In addition, the hemocompatibility assay revealed that the NPs do not significantly rupture red blood cells up to a dose of 1000 µg/mL. Bacterial live/dead imaging and zone of inhibition analysis demonstrated that ZnFe2O4 NPs showed dose-dependent bactericidal activities in various strains of Gram-negative and Gram-positive bacteria. Interestingly, NPs showed antimicrobial activity through multiple mechanisms, such as cell membrane damage, protein leakage, and reactive oxygen species generation, and were more effective against gram-positive bacteria. Furthermore, in vitro scratch assay revealed that ZnFe2O4 NPs improved cell migration and proliferation of cells, with noticeable shrinkage of the artificial wound model. CONCLUSIONS This study indicated that ZnFe2O4 NPs have the potential to be used as a future antimicrobial and wound healing drug.
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Affiliation(s)
- Reihaneh Haghniaz
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA.,California NanoSystems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Atiya Rabbani
- Department of Biotechnology, COMSATS University Islamabad, Islamabad, 45550, Pakistan
| | - Fereshteh Vajhadin
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA.,Department of Chemistry, Yazd University, 89195-741, Yazd, Iran
| | - Taous Khan
- Department of Pharmacy, COMSATS University Islamabad, Islamabad, 45550, Pakistan
| | - Rozina Kousar
- Department of Pharmacy, Women Institute of Learning, Abbottabad, 22060, Pakistan
| | - Abdul Rehman Khan
- Department of Biotechnology, COMSATS University Islamabad, Islamabad, 45550, Pakistan
| | - Hossein Montazerian
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Javed Iqbal
- Department of Botany, Bacha Khan University, Charsadda, 24420, Pakistan
| | - Alberto Libanori
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA.
| | - Fazli Wahid
- Department of Biomedical Sciences, Pak-Austria Fachhochschule: Institute of Applied Sciences and Technology, Haripur, 22620, Pakistan.
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Principles and applications of nanomaterial-based hyperthermia in cancer therapy. Arch Pharm Res 2020; 43:46-57. [PMID: 31993968 DOI: 10.1007/s12272-020-01206-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/09/2020] [Indexed: 12/19/2022]
Abstract
Over the past few decades, hyperthermia therapy (HTT) has become one of the most promising strategies to treat cancer. HTT has been applied with nanotechnology to overcome drawbacks such as non-selectivity and invasiveness and to maximize therapeutic efficacy. The high temperature of HTT induces protein denaturation that leads to apoptosis or necrosis. It can also enhance the effects of other cancer therapies because heat-damaged tissues reduce radioresistance and help accumulate anticancer drugs. Gold nanoparticles and superparamagnetic iron oxide with different energy sources are commonly used as hyperthermia agents. New types of nanoparticles such as those whose surface is coated with several polymers and those modified with targeting moieties have been studied as novel HTT agents. In this review, we introduce principles and applications of nanotechnology-based HTT using gold nanoparticles and superparamagnetic iron oxide.
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10
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Bardania H, Shojaosadati SA, Kobarfard F, Morshedi D, Aliakbari F, Tahoori MT, Roshani E. RGD-Modified Nano-Liposomes Encapsulated Eptifibatide with Proper Hemocompatibility and Cytotoxicity Effect. IRANIAN JOURNAL OF BIOTECHNOLOGY 2019; 17:e2008. [PMID: 31457055 PMCID: PMC6697844 DOI: 10.21859/ijb.2008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background Eptifibatide (Integrilin®) is a hepta-peptide drug which specifically prevents the aggregation of activated platelets. The peptide drugs are encapsulated into nanolipisomes in order to decreasing their side effects and improving their half-life and bioavailability. Objectives In this study, the in vitro cytotoxicity and hemocompatibility of RGD-modified nano-liposomes (RGD-MNL) encapsulated a highly potent antiplatelet drug (eptifibatide) was investigated. Material and Methods RGD-MNL encapsulated eptifibatide was prepared using lipid film hydration and freeze/thawing method. The morphology and size distribution (about 90 nm) of RGD-MNL were characterized using transmission electron microscopy (TEM). The in-vitro cytotoxicity of nano-liposomes was examined using the MTT, LDH release and reactive oxygen species (ROS) generation assays. The effect of RGD-MNL on red blood cells (RBC) was investigated using hemolysis and LDH release assays. Results The results revealed that RGD-MNL had no significant cytotoxic effect on HeLa and HUVEC cell lines, and also no ROS generation increase in the cells. In addition, the adverse effect of RGD-MNL on LDH release and membrane integrity of RBC was not observed. Conclusions In conclusion, the recommended RGD-MNL formulations have not any significant cytotoxicity on normal cells or RBC and have potential for protecting and enhancing the activity of antiplatelet drugs.
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Affiliation(s)
- Hassan Bardania
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Seyed Abbas Shojaosadati
- Biotechnology Group, Department of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Farzad Kobarfard
- Department of Medicinal Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Dina Morshedi
- Industrial and Environmental Biotechnology, National Inst. of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Farhang Aliakbari
- Industrial and Environmental Biotechnology, National Inst. of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Mohammad Taher Tahoori
- Department of Immunology, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Elahe Roshani
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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Clement S, Chen W, Deng W, Goldys EM. X-ray radiation-induced and targeted photodynamic therapy with folic acid-conjugated biodegradable nanoconstructs. Int J Nanomedicine 2018; 13:3553-3570. [PMID: 29950835 PMCID: PMC6016269 DOI: 10.2147/ijn.s164967] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
INTRODUCTION The depth limitation of conventional photodynamic therapy (PDT) with visible electromagnetic radiation represents a challenge for the treatment of deep-seated tumors. MATERIALS AND METHODS To overcome this issue, we developed an X-ray-induced PDT system where poly(lactide-co-glycolide) (PLGA) polymeric nanoparticles (NPs) incorporating a photosensitizer (PS), verteporfin (VP), were triggered by 6 MeV X-ray radiation to generate cytotoxic singlet oxygen. The X-ray radiation used in this study allows this system to breakthrough the PDT depth barrier due to excellent penetration of 6 MeV X-ray radiation through biological tissue. In addition, the conjugation of our NPs with folic acid moieties enables specific targeting of HCT116 cancer cells that overexpress the folate receptors. We carried out physiochemical characterization of PLGA NPs, such as size distribution, zeta potential, morphology and in vitro release of VP. Cellular uptake activity and cell-killing effect of these NPs were also evaluated. RESULTS AND DISCUSSION Our results indicate that our nanoconstructs triggered by 6 MeV X-ray radiation yield enhanced PDT efficacy compared with the radiation alone. We attributed the X-ray-induced singlet oxygen generation from the PS, VP, to photoexcitation by Cherenkov radiation and/or reactive oxygen species generation facilitated by energetic secondary electrons produced in the tissue. CONCLUSION The cytotoxic effect caused by VP offers the possibility of enhancing the radiation therapy commonly prescribed for the treatment of cancer by simultaneous PDT.
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Affiliation(s)
- Sandhya Clement
- Australian Research Council Centre of Excellence for Nanoscale BioPhotonics (CNBP), Department of Physics and Astronomy, Macquarie University, Sydney, NSW, Australia
- The Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
| | - Wenjie Chen
- Australian Research Council Centre of Excellence for Nanoscale BioPhotonics (CNBP), Department of Physics and Astronomy, Macquarie University, Sydney, NSW, Australia
| | - Wei Deng
- Australian Research Council Centre of Excellence for Nanoscale BioPhotonics (CNBP), Department of Physics and Astronomy, Macquarie University, Sydney, NSW, Australia
- The Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
| | - Ewa M Goldys
- Australian Research Council Centre of Excellence for Nanoscale BioPhotonics (CNBP), Department of Physics and Astronomy, Macquarie University, Sydney, NSW, Australia
- The Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
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Martínez-Ballesta MC, Gil-Izquierdo Á, García-Viguera C, Domínguez-Perles R. Nanoparticles and Controlled Delivery for Bioactive Compounds: Outlining Challenges for New "Smart-Foods" for Health. Foods 2018; 7:E72. [PMID: 29735897 PMCID: PMC5977092 DOI: 10.3390/foods7050072] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/27/2018] [Accepted: 05/04/2018] [Indexed: 12/28/2022] Open
Abstract
Nanotechnology is a field of research that has been stressed as a very valuable approach for the prevention and treatment of different human health disorders. This has been stressed as a delivery system for the therapeutic fight against an array of pathophysiological situations. Actually, industry has applied this technology in the search for new oral delivery alternatives obtained upon the modification of the solubility properties of bioactive compounds. Significant works have been made in the last years for testing the input that nanomaterials and nanoparticles provide for an array of pathophysiological situations. In this frame, this review addresses general questions concerning the extent to which nanoparticles offer alternatives that improve therapeutic value, while avoid toxicity, by releasing bioactive compounds specifically to target tissues affected by specific chemical and pathophysiological settings. In this regard, to date, the contribution of nanoparticles to protect encapsulated bioactive compounds from degradation as a result of gastrointestinal digestion and cellular metabolism, to enable their release in a controlled manner, enhancing biodistribution of bioactive compounds, and to allow them to target those tissues affected by biological disturbances has been demonstrated.
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Affiliation(s)
- MCarment Martínez-Ballesta
- Department of Plant Nutrition, Centro de Edafología y Biología Aplicada del Segura-Spanish Council for Scientific Research (CEBAS-CSIC), Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain.
| | - Ángel Gil-Izquierdo
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, Centro de Edafología y Biología Aplicada del Segura-Spanish Council for Scientific Research (CEBAS-CSIC), Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain.
| | - Cristina García-Viguera
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, Centro de Edafología y Biología Aplicada del Segura-Spanish Council for Scientific Research (CEBAS-CSIC), Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain.
| | - Raúl Domínguez-Perles
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, Centro de Edafología y Biología Aplicada del Segura-Spanish Council for Scientific Research (CEBAS-CSIC), Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain.
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Larue L, Ben Mihoub A, Youssef Z, Colombeau L, Acherar S, André JC, Arnoux P, Baros F, Vermandel M, Frochot C. Using X-rays in photodynamic therapy: an overview. Photochem Photobiol Sci 2018; 17:1612-1650. [DOI: 10.1039/c8pp00112j] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Photodynamic therapy is a therapeutic option to treat cancer and other diseases.
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Flores O, Santra S, Kaittanis C, Bassiouni R, Khaled AS, Khaled AR, Grimm J, Perez JM. PSMA-Targeted Theranostic Nanocarrier for Prostate Cancer. Am J Cancer Res 2017; 7:2477-2494. [PMID: 28744329 PMCID: PMC5525751 DOI: 10.7150/thno.18879] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 04/12/2017] [Indexed: 11/05/2022] Open
Abstract
Herein, we report the use of a theranostic nanocarrier (Folate-HBPE(CT20p)) to deliver a therapeutic peptide to prostate cancer tumors that express PSMA (folate hydrolase 1). The therapeutic peptide (CT20p) targets and inhibits the chaperonin-containing TCP-1 (CCT) protein-folding complex, is selectively cytotoxic to cancer cells, and is non-toxic to normal tissue. With the delivery of CT20p to prostate cancer cells via PSMA, a dual level of cancer specificity is achieved: (1) selective targeting to PSMA-expressing prostate tumors, and (2) specific cytotoxicity to cancer cells with minimal toxicity to normal cells. The PSMA-targeting theranostic nanocarrier can image PSMA-expressing cells and tumors when a near infrared dye is used as cargo. Meanwhile, it can be used to treat PSMA-expressing tumors when a therapeutic, such as the CT20p peptide, is encapsulated within the nanocarrier. Even when these PSMA-targeting nanocarriers are taken up by macrophages, minimal cell death is observed in these cells, in contrast with doxorubicin-based therapeutics that result in significant macrophage death. Incubation of PSMA-expressing prostate cancer cells with the Folate-HBPE(CT20p) nanocarriers induces considerable changes in cell morphology, reduction in the levels of integrin β1, and lower cell adhesion, eventually resulting in cell death. These results are relevant as integrin β1 plays a key role in prostate cancer invasion and metastatic potential. In addition, the use of the developed PSMA-targeting nanocarrier facilitates the selective in vivo delivery of CT20p to PSMA-positive tumor, inducing significant reduction in tumor size.
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Mahapatra C, Singh RK, Lee JH, Jung J, Hyun JK, Kim HW. Nano-shape varied cerium oxide nanomaterials rescue human dental stem cells from oxidative insult through intracellular or extracellular actions. Acta Biomater 2017; 50:142-153. [PMID: 27940193 DOI: 10.1016/j.actbio.2016.12.014] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 11/23/2016] [Accepted: 12/02/2016] [Indexed: 01/09/2023]
Abstract
Cerium oxide nanomaterials (CeNMs), due to their excellent scavenging properties of reactive oxygen species (ROS), have gained great promise for therapeutic applications. A high level of ROS often degrades the potential of stem cells in terms of survivability, maintenance and lineage differentiation. Here we hypothesize the CeNMs may play an important role in protecting the capacity of stem cells against the oxidative insult, and the suppression mechanism of ROS level may depend on the internalization of CeNMs. We synthesized CeNMs with different directional shapes (aspect ratios) by a pH-controlled hydrothermal method, and treated them to stem cells derived from human dental pulp at various doses. The short CeNMs (nanoparticles and nanorods) were internalized rapidly to cells whereas long CeNMs (nanowires) were slowly internalized, which led to different distributions of CeNMs and suppressed the ROS levels either intracellularly or extracellularly under the H2O2-exposed conditions. Resultantly, the stem cells, when dosed with the CeNMs, were rescued to have excellent cell survivability; the damages in intracellular components including DNA fragmentation, lipid rupture and protein degradation were significantly alleviated. The findings imply that the ROS-scavenging events of CeNMs need special consideration of aspect ratio-dependent cellular internalization, and also suggest the promising use of CeNMs to protect stem cells from the ROS-insult environments, which can ultimately improve the stem cell potential for tissue engineering and regenerative medicine uses. STATEMENT OF SIGNIFICANCE Oxidative stress governs many stem cell functions like self-renewal and lineage differentiation, and the biological conditions involving tissue repair and disease cure where stem cell therapy is often needed. Here we demonstrate the unique role of cerium oxide nanomaterials (CeNMs) in rescuing stem cell survivability, migration ability, and intracellular components from oxidative stress. In particular, we deliver a novel finding that nano-morphologically varied CeNMs show different mechanisms in their scavenging reactive oxygen species either intracellularly or extracellularly, and this is related with their different cellular internalizations. We used human dental pulp stem cells for the model study and proved the CeNMs were effective in controlling ROS level by means of scavenging intracellularly or extracellularly, which ultimately led to improving the intact therapeutic potential of stem cells. This work touches an important biological issue of nanomaterial interactions with stem cells under the conditions related with oxidative stress and the resultant damage. The correlation of shape factor in therapeutic nanomaterials with stem cell interaction and the oxidative stress-related functions will provide informative ideas in the design of CeNMs for cellular therapy.
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Sundarraj K, Manickam V, Raghunath A, Periyasamy M, Viswanathan MP, Perumal E. Repeated exposure to iron oxide nanoparticles causes testicular toxicity in mice. ENVIRONMENTAL TOXICOLOGY 2017; 32:594-608. [PMID: 26991130 DOI: 10.1002/tox.22262] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 02/17/2016] [Accepted: 02/26/2016] [Indexed: 05/28/2023]
Abstract
The aim of this study was to determine whether repeated exposure to iron oxide nanoparticles (Fe2 O3 -NPs) could be toxic to mice testis. Fe2 O3 -NPs (25 and 50 mg/kg) were intraperitoneally administered into mice once a week for 4 weeks. Our study showed that Fe2 O3 -NPs have the ability to cross the blood-testis barrier to get into the testis. The findings showed that exposure resulted in the accumulation of Fe2 O3 -NPs which was evidenced from the iron content and accumulation in the testis. Furthermore, 25 and 50 mg/kg Fe2 O3 -NPs administration increased the reactive oxygen species, lipid peroxidation, protein carbonyl content, glutathione peroxidase activity, and nitric oxide levels with a concomitant decrease in the levels of antioxidants-superoxide dismutase, catalase, glutathione, and vitamin C. Increased expression of Bax, cleaved-caspase-3, and cleaved-PARP confirms apoptosis. Serum testosterone levels increased with increased concentration of Fe2 O3 -NPs exposure. In addition, the histopathological lesions like vacuolization, detachment, and sloughing of germ cells were also observed in response to Fe2 O3 -NPs treatment. The data from our study entailed that testicular toxicity caused by Fe2 O3 -NPs exposure may be associated with Fe2 O3 -NPs accumulation leading to oxidative stress and apoptosis. Therefore, precautions should be taken in the safe use of Fe2 O3 -NPs to avoid complications in the fertility of males. Further research will unravel the possible molecular mechanisms on testicular toxicity of Fe2 O3 -NPs. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 594-608, 2017.
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Affiliation(s)
- Kiruthika Sundarraj
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
| | - Vijayprakash Manickam
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
| | - Azhwar Raghunath
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
| | - Madhivadhani Periyasamy
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
| | - Mangala Priya Viswanathan
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
| | - Ekambaram Perumal
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
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Wang Y, Zhou J, Liu L, Huang C, Zhou D, Fu L. Characterization and toxicology evaluation of chitosan nanoparticles on the embryonic development of zebrafish, Danio rerio. Carbohydr Polym 2016; 141:204-10. [PMID: 26877014 DOI: 10.1016/j.carbpol.2016.01.012] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 01/05/2016] [Accepted: 01/10/2016] [Indexed: 12/20/2022]
Abstract
In the present study, chitosan nanoparticles were prepared, characterized and used to evaluate the embryonic toxicology on zebrafish (Danio rerio). The average particle size of chitosan nanoparticles was 84.86nm. The increased mortality and decreased hatching rate was found in the zebrafish embryo exposure to normal chitosan particles and chitosan nanoparticles with the increased addition concentration. At 120h post-fertilization (hpf), the rate of mortality were 25.0 and 44.4% in the groups treated with chitosan nanoparticles and normal chitosan particles at 250mg/L, respectively. At 72hpf, the hatching rate in the groups treated with normal chitosan particles were lower (P<0.01) at 300 and 400mg/L than those of the corresponding control groups, respectively. However, there were no significant differences between the groups treated with chitosan nanoparticles and the control groups across all the addition concentrations. More abundant typical malformation of embryos was observed in the groups treated with normal chitosan particles compared with those treated with chitosan nanoparticles. The LC50 (medium lethal concentration) of chitosan nanoparticles was 280mg/L at 96hpf and 270mg/L at 120hpf. As for normal chitosan particles, the LC50 was 257mg/L at both 96hpf and 120hpf. The TC50 (medium teratogenic concentration) of the zebrafish treated with chitosan nanoparticles and normal chitosan particles were 257mg/L and 137mg/L, respectively. It indicated that the chitosan nanoparticles were relatively more secure compared with normal chitosan particles.
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Affiliation(s)
- Yanbo Wang
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310035, China
| | - Jinru Zhou
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310035, China
| | - Lin Liu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310035, China
| | - Changjiang Huang
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical University, Wenzhou 325035, China
| | - Deqing Zhou
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Linglin Fu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310035, China.
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Paolini A, Guarch CP, Ramos-López D, de Lapuente J, Lascialfari A, Guari Y, Larionova J, Long J, Nano R. Rhamnose-coated superparamagnetic iron-oxide nanoparticles: an evaluation of their in vitro cytotoxicity, genotoxicity and carcinogenicity. J Appl Toxicol 2015; 36:510-20. [PMID: 26708321 DOI: 10.1002/jat.3273] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 12/16/2022]
Abstract
Tumor recurrence after the incomplete removal of a tumor mass inside brain tissue is the main reason that scientists are working to identify new strategies in brain oncologic therapy. In particular, in the treatment of the most malignant astrocytic tumor glioblastoma, the use of magnetic nanoparticles seems to be one of the most promising keys in overcoming this problem, namely by means of magnetic fluid hyperthermia (MFH) treatment. However, the major unknown issue related to the use of nanoparticles is their toxicological behavior when they are in contact with biological tissues. In the present study, we investigated the interaction of glioblastoma and other tumor cell lines with superparamagnetic iron-oxide nanoparticles covalently coated with a rhamnose derivative, using proper cytotoxic assays. In the present study, we focused our attention on different strategies of toxicity evaluation comparing different cytotoxicological approaches in order to identify the biological damages induced by the nanoparticles. The data show an intensive internalization process of rhamnose-coated iron oxide nanoparticles by the cells, suggesting that rhamnose moiety is a promising biocompatible coating in favoring cells' uptake. With regards to cytotoxicity, a 35% cell death at a maximum concentration, mainly as a result of mitochondrial damages, was found. This cytotoxic behavior, along with the high uptake ability, could facilitate the use of these rhamnose-coated iron-oxide nanoparticles for future MFH therapeutic treatments.
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Affiliation(s)
- Alessandro Paolini
- Bambino Gesù Children's Hospital-IRCCS, Gene Expression - Microarrays Laboratory, Rome, Italy.,Department of Biology and Biotechnology 'Lazzaro Spallanzani', University of Pavia, Pavia, Italy
| | - Constança Porredon Guarch
- Unit of Experimental Toxicology and Ecotoxicology (UTOX-CERETOX), Barcelona Science Park, Barcelona, Spain
| | - David Ramos-López
- Unit of Experimental Toxicology and Ecotoxicology (UTOX-CERETOX), Barcelona Science Park, Barcelona, Spain
| | - Joaquín de Lapuente
- Unit of Experimental Toxicology and Ecotoxicology (UTOX-CERETOX), Barcelona Science Park, Barcelona, Spain
| | | | - Yannick Guari
- ICGM - UMR5253- Equipe IMNO, Université de Montpellier, Montpellier CEDEX 5, France
| | - Joulia Larionova
- ICGM - UMR5253- Equipe IMNO, Université de Montpellier, Montpellier CEDEX 5, France
| | - Jerome Long
- ICGM - UMR5253- Equipe IMNO, Université de Montpellier, Montpellier CEDEX 5, France
| | - Rosanna Nano
- Department of Biology and Biotechnology 'Lazzaro Spallanzani', University of Pavia, Pavia, Italy
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Ravichandran S, Sullivan MA, Callahan LM, Bentley KL, DeLouise LA. Development and characterization of antibody reagents for detecting nanoparticles. NANOSCALE 2015; 7:20042-20054. [PMID: 26568258 PMCID: PMC4685707 DOI: 10.1039/c5nr04882f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The increasing use of nanoparticles (NPs) in technological applications and in commercial products has escalated environmental health and safety concerns. The detection of NPs in the environment and in biological systems is challenged by limitations associated with commonly used analytical techniques. In this paper we report on the development and characterization of NP binding antibodies, termed NProbes. Phage display methodology was used to discover antibodies that bind NPs dispersed in solution. We present a proof-of-concept for the generation of NProbes and their use for detecting quantum dots and titanium dioxide NPs in vitro and in an ex vivo human skin model. Continued development and refinement of NProbes to detect NPs that vary in composition, shape, size, and surface coating will comprise a powerful tool kit that can be used to advance nanotechnology research particularly in the nanotoxicology and nanotherapeutics fields.
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Affiliation(s)
- Supriya Ravichandran
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14642, USA.
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Md S, Mustafa G, Baboota S, Ali J. Nanoneurotherapeutics approach intended for direct nose to brain delivery. Drug Dev Ind Pharm 2015; 41:1922-34. [PMID: 26057769 DOI: 10.3109/03639045.2015.1052081] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CONTEXT Brain disorders remain the world's leading cause of disability, and account for more hospitalizations and prolonged care than almost all other diseases combined. The majority of drugs, proteins and peptides do not readily permeate into brain due to the presence of the blood-brain barrier (BBB), thus impeding treatment of these conditions. OBJECTIVE Attention has turned to developing novel and effective delivery systems to provide good bioavailability in the brain. METHODS Intranasal administration is a non-invasive method of drug delivery that may bypass the BBB, allowing therapeutic substances direct access to the brain. However, intranasal administration produces quite low drug concentrations in the brain due limited nasal mucosal permeability and the harsh nasal cavity environment. Pre-clinical studies using encapsulation of drugs in nanoparticulate systems improved the nose to brain targeting and bioavailability in brain. However, the toxic effects of nanoparticles on brain function are unknown. RESULT AND CONCLUSION This review highlights the understanding of several brain diseases and the important pathophysiological mechanisms involved. The review discusses the role of nanotherapeutics in treating brain disorders via nose to brain delivery, the mechanisms of drug absorption across nasal mucosa to the brain, strategies to overcome the blood brain barrier, nanoformulation strategies for enhanced brain targeting via nasal route and neurotoxicity issues of nanoparticles.
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Affiliation(s)
- Shadab Md
- a Department of Pharmaceutical Technology , School of Pharmacy, International Medical University (IMU) , Kuala Lumpur , Malaysia
| | - Gulam Mustafa
- b College of Pharmacy, Al-Dawadmi Campus, Shaqra University , Riyadh , Kingdom of Saudi Arabia , and.,c Faculty of Pharmacy, Department of Pharmaceutics , Jamia Hamdard, New Delhi , India
| | - Sanjula Baboota
- c Faculty of Pharmacy, Department of Pharmaceutics , Jamia Hamdard, New Delhi , India
| | - Javed Ali
- c Faculty of Pharmacy, Department of Pharmaceutics , Jamia Hamdard, New Delhi , India
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Lee DS, Im HJ, Lee YS. Radionanomedicine: Widened perspectives of molecular theragnosis. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:795-810. [DOI: 10.1016/j.nano.2014.12.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 10/24/2022]
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Lindemann A, Lüdtke-Buzug K, Fräderich BM, Gräfe K, Pries R, Wollenberg B. Biological impact of superparamagnetic iron oxide nanoparticles for magnetic particle imaging of head and neck cancer cells. Int J Nanomedicine 2014; 9:5025-40. [PMID: 25378928 PMCID: PMC4218924 DOI: 10.2147/ijn.s63873] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Background As a tomographic imaging technology, magnetic particle imaging (MPI) allows high spatial resolution and sensitivity, and the possibility to create real-time images by determining the spatial distribution of magnetic particles. To ensure a prospective biosafe application of UL-D (University of Luebeck-Dextran coated superparamagnetic nanoparticles), we evaluated the biocompatibility of superparamagnetic iron oxide nanoparticles (SPIONs), their impact on biological properties, and their cellular uptake using head and neck squamous cancer cells (HNSCCs). Methods SPIONs that met specific MPI requirements were synthesized as tracers. Labeling and uptake efficiency were analyzed by hematoxylin and eosin staining and magnetic particle spectrometry. Flow cytometry, 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assays, and real-time cell analyzer assays were used to investigate apoptosis, proliferation, and the cytokine response of SPION-labeled cells. The production of reactive oxygen species (ROS) was determined using a fluorescent dye. Experimental results were compared to the contrast agent Resovist®, a standard agent used in MPI. Results UL-D nanoparticles and Resovist particles were taken up in vitro by HNSCCs via unspecific phagocytosis followed by cytosolic accumulation. To evaluate toxicity, flow cytometry analysis was performed; results showed that dose- and time-dependent administration of Resovist induced apoptosis whereas cell viability of UL-D-labeled cells was not altered. We observed decreased cell proliferation in response to increased SPION concentrations. An intracellular production of ROS could not be detected, suggesting that the particles did not cause oxidative stress. Tumor necrosis factor alpha (TNF-α) and interleukins IL-6, IL-8, and IL-1β were measured to distinguish inflammatory responses. Only the primary tumor cell line labeled with >0.5 mM Resovist showed a significant increase in IL-1β secretion. Conclusion Our data suggest that UL-D SPIONs are a promising tracer material for use in innovative tumor cell analysis in MPI.
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Affiliation(s)
- Antje Lindemann
- Department of Otorhinolaryngology, University Hospital of Schleswig-Holstein, Luebeck, Germany
| | | | - Bianca M Fräderich
- Department of Otorhinolaryngology, University Hospital of Schleswig-Holstein, Luebeck, Germany
| | - Ksenija Gräfe
- Institute of Medical Engineering, University of Luebeck, Luebeck, Germany
| | - Ralph Pries
- Department of Otorhinolaryngology, University Hospital of Schleswig-Holstein, Luebeck, Germany
| | - Barbara Wollenberg
- Department of Otorhinolaryngology, University Hospital of Schleswig-Holstein, Luebeck, Germany
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Gupta AS. Nanotechnology applications in diagnosis and treatment of metastasis. Nanomedicine (Lond) 2014; 9:1517-29. [DOI: 10.2217/nnm.14.94] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The lethality of solid tumors is in large part dependent on their ability to metastasize through hematologic and lymphatic transport pathways. The dissemination of cancer cells from the primary tumor to undergo transport, their ability to survive in transit and then to subsequently form metastatic colonies, is facilitated by a complex concert of signaling pathways and cell–cell and cell–matrix interactions. Elucidating these mechanistic components is highly valuable to guide the development of technologies for efficiently detecting and treating metastasis. To this end, in recent years nanotechnology approaches have provided several unique detection, characterization and treatment strategies. The current article will review these approaches to discuss their promise and challenges, specifically in metastatic cancer, above and beyond the usual nanomedicine applications in cancer therapy.
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Weiss VU, Kerul L, Kallinger P, Szymanski WW, Marchetti-Deschmann M, Allmaier G. Liquid phase separation of proteins based on electrophoretic effects in an electrospray setup during sample introduction into a gas-phase electrophoretic mobility molecular analyzer (CE-GEMMA/CE-ES-DMA). Anal Chim Acta 2014; 841:91-8. [PMID: 25109866 PMCID: PMC4150488 DOI: 10.1016/j.aca.2014.05.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 05/22/2014] [Accepted: 05/23/2014] [Indexed: 11/29/2022]
Abstract
First demonstration of a hyphenated CE–GEMMA combination for proteins. Feasibility of on-line CE–GEMMA in a commercial device at ambient pressure. On-line combination of liquid phase and gas phase electrophoretic separation.
Nanoparticle characterization is gaining importance in food technology, biotechnology, medicine, and pharmaceutical industry. An instrument to determine particle electrophoretic mobility (EM) diameters in the single-digit to double-digit nanometer range receiving increased attention is the gas-phase electrophoretic mobility molecular analyzer (GEMMA) separating electrophoretically single charged analytes in the gas-phase at ambient pressure. A fused-silica capillary is used for analyte transfer to the gas-phase by means of a nano electrospray (ES) unit. The potential of this capillary to separate analytes electrophoretically in the liquid phase due to different mobilities is, at measurement conditions recommended by the manufacturer, eliminated due to elevated pressure applied for sample introduction. Measurements are carried out upon constant feeding of analytes to the system. Under these conditions, aggregate formation is observed for samples including high amounts of non-volatile components or complex samples. This makes the EM determination of individual species sometimes difficult, if not impossible. With the current study we demonstrate that liquid phase electrophoretic separation of proteins (as exemplary analytes) occurs in the capillary (capillary zone electrophoresis, CE) of the nano ES unit of the GEMMA. This finding was consecutively applied for on-line desalting allowing EM diameter determination of analytes despite a high salt concentration within samples. The present study is to our knowledge the first report on the use of the GEMMA to determine EM diameters of analytes solubilized in the ES incompatible electrolyte solutions by the intended use of electrophoresis (in the liquid phase) during sample delivery. Results demonstrate the proof of concept of such an approach and additionally illustrate the high potential of a future on-line coupling of a capillary electrophoresis to a GEMMA instrument.
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Affiliation(s)
- Victor U Weiss
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria
| | - Lukas Kerul
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria
| | | | | | | | - Günter Allmaier
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria
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Chen CC, Hsieh DS, Huang KJ, Chan YL, Hong PD, Yeh MK, Wu CJ. Improving anticancer efficacy of (-)-epigallocatechin-3-gallate gold nanoparticles in murine B16F10 melanoma cells. DRUG DESIGN DEVELOPMENT AND THERAPY 2014; 8:459-74. [PMID: 24855338 PMCID: PMC4020885 DOI: 10.2147/dddt.s58414] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
(-)-Epigallocatechin-3-gallate (EGCG), the major bioactive constituent in green tea, has been reported to effectively inhibit the formation and development of tumors. To maximize the effectiveness of EGCG, we attached it to nanogold particles (EGCG-pNG) in various ratios to examine in vitro cytotoxicity and in vivo anti-cancer activity. EGCG-pNG showed improved anti-cancer efficacy in B16F10 murine melanoma cells; the cytotoxic effect in the melanoma cells treated with EGCG-pNG was 4.91 times higher than those treated with EGCG. The enhancement is achieved through mitochondrial pathway-mediated apoptosis as determined by annexin V assay, JC-10 staining, and caspase-3, -8, -9 activity assay. Moreover, EGCG-pNG was 1.66 times more potent than EGCG for inhibition of tumor growth in a murine melanoma model. In the hemolysis assay, the pNG surface conjugated with EGCG is most likely the key factor that contributes to the decreased release of hemoglobin from human red blood cells.
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Affiliation(s)
- Cheng-Cheung Chen
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan, Republic of China ; Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Dar-Shih Hsieh
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan, Republic of China ; Division of Urology, Department of Surgery, Ren-Ai Hospital, Shulin, New Taipei City, Taiwan, Republic of China
| | - Kao-Jean Huang
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan, Republic of China
| | - Yi-Lin Chan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Po-Da Hong
- Materials Technology Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan, Republic of China
| | - Ming-Kung Yeh
- Materials Technology Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan, Republic of China ; School of Pharmacy, National Defense Medical Center, Taipei, Taiwan, Republic of China ; Food and Drug Administration, Ministry of Health and Welfare, Taipei, Taiwan, Republic of China
| | - Chang-Jer Wu
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan, Republic of China
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Chen YC, Huang XC, Luo YL, Chang YC, Hsieh YZ, Hsu HY. Non-metallic nanomaterials in cancer theranostics: a review of silica- and carbon-based drug delivery systems. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2013; 14:044407. [PMID: 27877592 PMCID: PMC5090318 DOI: 10.1088/1468-6996/14/4/044407] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 07/16/2013] [Indexed: 05/19/2023]
Abstract
The rapid development in nanomaterials has brought great opportunities to cancer theranostics, which aims to combine diagnostics and therapy for cancer treatment and thereby improve the healthcare of patients. In this review we focus on the recent progress of several cancer theranostic strategies using mesoporous silica nanoparticles and carbon-based nanomaterials. Silicon and carbon are both group IV elements; they have been the most abundant and significant non-metallic substances in human life. Their intrinsic physical/chemical properties are of critical importance in the fabrication of multifunctional drug delivery systems. Responsive nanocarriers constructed using these nanomaterials have been promising in cancer-specific theranostics during the past decade. In all cases, either a controlled texture or the chemical functionalization is coupled with adaptive properties, such as pH-, light-, redox- and magnetic field- triggered responses. Several studies in cells and mice models have implied their underlying therapeutic efficacy; however, detailed and long-term in vivo clinical evaluations are certainly required to make these bench-made materials compatible in real bedside circumstances.
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Affiliation(s)
- Yu-Cheng Chen
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao-Tung University, Tin-Ka-Pin Building R615B, No. 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Xin-Chun Huang
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao-Tung University, Tin-Ka-Pin Building R615B, No. 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Yun-Ling Luo
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao-Tung University, Tin-Ka-Pin Building R615B, No. 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Yung-Chen Chang
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao-Tung University, Tin-Ka-Pin Building R615B, No. 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - You-Zung Hsieh
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao-Tung University, Tin-Ka-Pin Building R615B, No. 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Hsin-Yun Hsu
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao-Tung University, Tin-Ka-Pin Building R615B, No. 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
- Institute of Molecular Science, National Chiao-Tung University, No. 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
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Aqil F, Munagala R, Jeyabalan J, Vadhanam MV. Bioavailability of phytochemicals and its enhancement by drug delivery systems. Cancer Lett 2013; 334:133-41. [PMID: 23435377 PMCID: PMC3815990 DOI: 10.1016/j.canlet.2013.02.032] [Citation(s) in RCA: 188] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 02/07/2013] [Accepted: 02/08/2013] [Indexed: 12/12/2022]
Abstract
Issues of poor oral bioavailability of cancer chemopreventives have hindered progress in cancer prevention. Novel delivery systems that modulate the pharmacokinetics of existing drugs, such as nanoparticles, cyclodextrins, niosomes, liposomes and implants, could be used to enhance the delivery of chemopreventive agents to target sites. The development of new approaches in prevention and treatment of cancer could encompass new delivery systems for approved and newly investigated compounds. In this review, we discuss some of the delivery approaches that have already made an impact by either delivering a drug to target tissue or increasing its bioavailability by many fold.
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Affiliation(s)
- Farrukh Aqil
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, United States
| | - Radha Munagala
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, United States
| | - Jeyaprakash Jeyabalan
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, United States
| | - Manicka V Vadhanam
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, United States.
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Maurer-Jones MA, Gunsolus IL, Murphy CJ, Haynes CL. Toxicity of engineered nanoparticles in the environment. Anal Chem 2013; 85:3036-49. [PMID: 23427995 PMCID: PMC4104669 DOI: 10.1021/ac303636s] [Citation(s) in RCA: 364] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
While nanoparticles occur naturally in the environment and have been intentionally used for centuries, the production and use of engineered nanoparticles has seen a recent spike, which makes environmental release almost certain. Therefore, recent efforts to characterize the toxicity of engineered nanoparticles have focused on the environmental implications, including exploration of toxicity to organisms from wide-ranging parts of the ecosystem food webs. Herein, we summarize the current understanding of toxicity of engineered nanoparticles to representatives of various trophic levels, including bacteria, plants, and multicellular aquatic/terrestrial organisms, to highlight important challenges within the field of econanotoxicity, challenges that analytical chemists are expertly poised to address.
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Affiliation(s)
- Melissa A. Maurer-Jones
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Ian L. Gunsolus
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Catherine J. Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Christy L. Haynes
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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Orza A, Soriţău O, Tomuleasa C, Olenic L, Florea A, Pana O, Bratu I, Pall E, Florian S, Casciano D, Biris AS. Reversing chemoresistance of malignant glioma stem cells using gold nanoparticles. Int J Nanomedicine 2013; 8:689-702. [PMID: 23467447 PMCID: PMC3589121 DOI: 10.2147/ijn.s37481] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Indexed: 11/24/2022] Open
Abstract
The low rate of survival for patients diagnosed with glioblastoma may be attributed to the existence of a subpopulation of cancer stem cells. These stem cells have certain properties that enable them to resist chemotherapeutic agents and ionizing radiation. Herein, we show that temozolomide-loaded gold nanostructures are efficient in reducing chemoresistance and destroy 82.7% of cancer stem cells compared with a 42% destruction rate using temozolomide alone. Measurements of in vitro cytotoxicity and apoptosis indicate that combination with gold facilitated the ability of temozolomide, an alkylating drug, to alter the resistance of these cancer stem cells, suggesting a new chemotherapy strategy for patients diagnosed with inoperable recurrent malignant glioma.
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Affiliation(s)
- Anamaria Orza
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca, Romania
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Paino IMM, Marangoni VS, de Oliveira RDCS, Antunes LMG, Zucolotto V. Cyto and genotoxicity of gold nanoparticles in human hepatocellular carcinoma and peripheral blood mononuclear cells. Toxicol Lett 2012; 215:119-25. [DOI: 10.1016/j.toxlet.2012.09.025] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 09/27/2012] [Accepted: 09/29/2012] [Indexed: 11/16/2022]
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Kut C, Zhang Y, Hedayati M, Zhou H, Cornejo C, Bordelon D, Mihalic J, Wabler M, Burghardt E, Gruettner C, Geyh A, Brayton C, Deweese TL, Ivkov R. Preliminary study of injury from heating systemically delivered, nontargeted dextran-superparamagnetic iron oxide nanoparticles in mice. Nanomedicine (Lond) 2012; 7:1697-711. [PMID: 22830502 DOI: 10.2217/nnm.12.65] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
AIM To assess the potential for injury to normal tissues in mice due to heating systemically delivered magnetic nanoparticles in an alternating magnetic field (AMF). MATERIALS & METHODS Twenty three male nude mice received intravenous injections of dextran-superparamagnetic iron oxide nanoparticles on days 1-3. On day 6, they were exposed to AMF. On day 7, blood, liver and spleen were harvested and analyzed. RESULTS Iron deposits were detected in the liver and spleen. Mice that had received a high-particle dose and a high AMF experienced increased mortality, elevated liver enzymes and significant liver and spleen necrosis. Mice treated with low-dose superparamagnetic iron oxide nanoparticles and a low AMF survived, but had elevated enzyme levels and local necrosis in the spleen. CONCLUSION Magnetic nanoparticles producing only modest heat output can cause damage, and even death, when sequestered in sufficient concentrations. Dextran-superparamagnetic iron oxide nanoparticles are deposited in the liver and spleen, making these the sites of potential toxicity. Original submitted 16 August 2011; Revised submitted 21 March 2012; Published online 26 July 2012.
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Affiliation(s)
- Carmen Kut
- Johns Hopkins University School of Medicine, 1550 Orleans Street, CRB I, Baltimore, MD 21231, USA
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Burguete P, Beltrán A, Guillem C, Latorre J, Pérez-Pla F, Beltrán D, Amorós P. Pore Length Effect on Drug Uptake and Delivery by Mesoporous Silicas. Chempluschem 2012. [DOI: 10.1002/cplu.201200099] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Ge Z, Li C, Heng BC, Cao G, Yang Z. Functional biomaterials for cartilage regeneration. J Biomed Mater Res A 2012; 100:2526-36. [PMID: 22492677 DOI: 10.1002/jbm.a.34147] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 01/30/2012] [Accepted: 02/19/2012] [Indexed: 12/22/2022]
Abstract
The injury and degeneration of articular cartilage and associated arthritis are leading causes of disability worldwide. Cartilage tissue engineering as a treatment modality for cartilage defects has been investigated for over 20 years. Various scaffold materials have been developed for this purpose, but has yet to achieve feasibility and effectiveness for widespread clinical use. Currently, the regeneration of articular cartilage remains a formidable challenge, due to the complex physiology of cartilage tissue and its poor healing capacity. Although intensive research has been focused on the developmental biology and regeneration of cartilage tissue and a diverse plethora of biomaterials have been developed for this purpose, cartilage regeneration is still suboptimal, such as lacking a layered structure, mechanical mismatch with native cartilage and inadequate integration between native tissue and implanted scaffold. The ideal scaffold material should have versatile properties that actively contribute to cartilage regeneration. Functional scaffold materials may overcome the various challenges faced in cartilage tissue engineering by providing essential biological, mechanical, and physical/chemical signaling cues through innovative design. This review thus focuses on the complex structure of native articular cartilage, the critical properties of scaffolds required for cartilage regeneration, present strategies for scaffold design, and future directions for cartilage regeneration with functional scaffold materials.
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Affiliation(s)
- Zigang Ge
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, People's Republic of China.
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Liu J, Tabata Y. Effect of modification manner on the photodynamic antitumor activity of C60 modified with pullulan. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:2147-63. [PMID: 21902907 DOI: 10.1163/092050610x535680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To design a novel cytospecific photosensitizer for photodynamic antitumor therapy, a fullerene (C(60)) was chemically modified with pullulan, a water-soluble polysaccharide with a high affinity for asialoglycoprotein receptors (ASGPRs). The effect of the molecular weight of pullulan and the modification manner to C(60) on the photodynamic antitumor activity of C(60) modified with pullulan was evaluated. In this study, two modification manners were selected. First, ethylene diamine was chemically introduced to the hydroxyl groups of pullulan with different molecular weights. Then, C(60) was coupled to pullulan through the amino groups introduced (pendant type). Second, ethylene diamine was introduced to the terminal aldehyde groups of pullulan by a reductive amination reaction, and then the pullulan with the terminal amino groups was coupled to C(60) (terminal type). Irrespective of the pullulan molecular and the modification manner, the C(60)-pullulan conjugates exhibited a similar ability to generate superoxide anions upon light irradiation. Comparing the C(60)-pullulan conjugates of pendant and terminal types, a high lectin affinity was observed for the latter conjugates. The conjugates showed a high affinity for HepG2 cells with ASGPRs and, consequently, a strong in vitro antitumor activity on the cells. It is concluded that the manner of pullulan modification is a key factor contributing to the photodynamic antitumor activity of modified C(60).
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Affiliation(s)
- Jian Liu
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
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Soenen SJ, De Cuyper M, De Smedt SC, Braeckmans K. Investigating the toxic effects of iron oxide nanoparticles. Methods Enzymol 2012; 509:195-224. [PMID: 22568907 DOI: 10.1016/b978-0-12-391858-1.00011-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The use of iron oxide nanoparticles (IONPs) in biomedical research is steadily increasing, leading to the rapid development of novel IONP types and an increased exposure of cultured cells to a wide variety of IONPs. Due to the large variation in incubation conditions, IONP characteristics, and cell types studied, it is still unclear whether IONPs are generally safe or should be used with caution. During the past years, several contradictory observations have been reported, which highlight the great need for a more thorough understanding of cell-IONP interactions. To improve our knowledge in this field, there is a great need for standardized protocols and toxicity assays, that would allow to directly compare the cytotoxic potential of any IONP type with previously screened particles. Here, several approaches are described that allow to rapidly but thoroughly address several parameters which are of great impact for IONP-induced toxicity. These assays focus on acute cytotoxicity, induction of reactive oxygen species, measuring the amount of cell-associated iron, assessing cell morphology, cell proliferation, cell functionality, and possible pH-induced or intracellular IONP degradation. Together, these assays may form the basis for any detailed study on IONP cytotoxicity.
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Affiliation(s)
- Stefaan J Soenen
- Laboratory of General Biochemistry and Physical Pharmacy, Department of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
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Hu YL, Qi W, Han F, Shao JZ, Gao JQ. Toxicity evaluation of biodegradable chitosan nanoparticles using a zebrafish embryo model. Int J Nanomedicine 2011; 6:3351-9. [PMID: 22267920 PMCID: PMC3260029 DOI: 10.2147/ijn.s25853] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Although there are a number of reports regarding the toxicity evaluation of inorganic nanoparticles, knowledge on biodegradable nanomaterials, which have always been considered safe, is still limited. For example, the toxicity of chitosan nanoparticles, one of the most widely used drug/gene delivery vehicles, is largely unknown. In the present study, the zebrafish model was used for a safety evaluation of this nanocarrier. METHODS Chitosan nanoparticles with two particle sizes were prepared by ionic cross-linking of chitosan with sodium tripolyphosphate. Chitosan nanoparticles of different concentrations were incubated with zebrafish embryos, and ZnO nanoparticles were used as the positive control. RESULTS Embryo exposure to chitosan nanoparticles and ZnO nanoparticles resulted in a decreased hatching rate and increased mortality, which was concentration-dependent. Chitosan nanoparticles at a size of 200 nm caused malformations, including a bent spine, pericardial edema, and an opaque yolk in zebrafish embryos. Furthermore, embryos exposed to chitosan nanoparticles showed an increased rate of cell death, high expression of reactive oxygen species, as well as overexpression of heat shock protein 70, indicating that chitosan nanoparticles can cause physiological stress in zebrafish. The results also suggest that the toxicity of biodegradable nanocarriers such as chitosan nanoparticles must be addressed, especially considering the in vivo distribution of these nanoscaled particles. CONCLUSION Our results add new insights into the potential toxicity of nanoparticles produced by biodegradable materials, and may help us to understand better the nanotoxicity of drug delivery carriers.
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Affiliation(s)
- Yu-Lan Hu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
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Koo H, Huh MS, Sun IC, Yuk SH, Choi K, Kim K, Kwon IC. In vivo targeted delivery of nanoparticles for theranosis. Acc Chem Res 2011; 44:1018-28. [PMID: 21851104 DOI: 10.1021/ar2000138] [Citation(s) in RCA: 306] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Therapy and diagnosis are two major categories in the clinical treatment of disease. Recently, the word "theranosis" has been created, combining the words to describe the implementation of these two distinct pursuits simultaneously. For successful theranosis, the efficient delivery of imaging agents and drugs is critical to provide sufficient imaging signal or drug concentration in the targeted disease site. To achieve this purpose, biomedical researchers have developed various nanoparticles composed of organic or inorganic materials. However, the targeted delivery of these nanoparticles in animal models and patients remains a difficult hurdle for many researchers, even if they show useful properties in cell culture condition. In this Account, we review our strategies for developing theranostic nanoparticles to accomplish in vivo targeted delivery of imaging agents and drugs. By applying these rational strategies, we achieved fine multimodal imaging and successful therapy. Our first strategy involves physicochemical optimization of nanoparticles for long circulation and an enhanced permeation and retention (EPR) effect. We accomplished this result by testing various materials in mouse models and optimizing the physical properties of the materials with imaging techniques. Through these experiments, we developed a glycol chitosan nanoparticle (CNP), which is suitable for angiogenic diseases, such as cancers, even without an additional targeting moiety. The in vivo mechanism of this particle was examined through rationally designed experiments. In addition, we evaluated and compared the biodistribution and target-site accumulation of bare and drug-loaded nanoparticles. We then focus on the targeting moieties that bind to cell surface receptors. Small peptides were selected as targeting moieties because of their stability, low cost, size, and activity per unit mass. Through phage display screening, the interleukin-4 receptor binding peptide was discovered, and we combined it with our nanoparticles. This product accumulated efficiently in atherosclerotic regions or tumors during both imaging and therapy. We also developed hyaluronic acid nanoparticles that can bind efficiently to the CD44 antigen receptors abundant in many tumor cells. Their delivery mechanism is based on both physicochemical optimization for the EPR effect and receptor-mediated endocytosis by their hyaluronic acid backbone. Finally, we introduce the stimuli-responsive system related to the chemical and biological changes in the target disease site. Considering the relatively low pH in tumors and ischemic sites, we applied pH-sensitive micelle to optical imaging, magnetic resonance imaging, anticancer drug delivery, and photodynamic therapy. In addition, we successfully evaluated the in vivo imaging of enzyme activity at the target site with an enzyme-specific peptide sequence and CNPs. On the basis of these strategies, we were able to develop self-assembled nanoparticles for in vivo targeted delivery, and successful results were obtained with them in animal models for both imaging and therapy. We anticipate that these rational strategies, as well as our nanoparticles, will be applied in both the diagnosis and therapy of many human diseases. These theranostic nanoparticles are expected to greatly contribute to optimized therapy for individual patients as personalized medicine, in the near future.
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Affiliation(s)
- Heebeom Koo
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 6, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Myung Sook Huh
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 6, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - In-Cheol Sun
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 6, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Soon Hong Yuk
- College of Pharmacy, Korea University, Jochiwon, Yeongi, Chungnam 339-700, Republic of Korea
| | - Kuiwon Choi
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 6, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Kwangmeyung Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 6, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Ick Chan Kwon
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 6, Seongbuk-gu, Seoul 136-791, Republic of Korea
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Laurent S, Dutz S, Häfeli UO, Mahmoudi M. Magnetic fluid hyperthermia: focus on superparamagnetic iron oxide nanoparticles. Adv Colloid Interface Sci 2011; 166:8-23. [PMID: 21601820 DOI: 10.1016/j.cis.2011.04.003] [Citation(s) in RCA: 619] [Impact Index Per Article: 47.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Revised: 04/19/2011] [Accepted: 04/19/2011] [Indexed: 11/27/2022]
Abstract
Due to their unique magnetic properties, excellent biocompatibility as well as multi-purpose biomedical potential (e.g., applications in cancer therapy and general drug delivery), superparamagnetic iron oxide nanoparticles (SPIONs) are attracting increasing attention in both pharmaceutical and industrial communities. The precise control of the physiochemical properties of these magnetic systems is crucial for hyperthermia applications, as the induced heat is highly dependent on these properties. In this review, the limitations and recent advances in the development of superparamagnetic iron oxide nanoparticles for hyperthermia are presented.
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Delmas T, Couffin AC, Bayle PA, Crécy FD, Neumann E, Vinet F, Bardet M, Bibette J, Texier I. Preparation and characterization of highly stable lipid nanoparticles with amorphous core of tuneable viscosity. J Colloid Interface Sci 2011; 360:471-81. [DOI: 10.1016/j.jcis.2011.04.080] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Revised: 04/15/2011] [Accepted: 04/19/2011] [Indexed: 11/26/2022]
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Belletti D, Riva G, Tosi G, Forni F, Barozzi P, Luppi M, Vandelli MA, Ruozi B. Novel polymeric/lipidic hybrid systems (PLHs) for effective Cidofovir delivery: Preparation, characterization and comparative in vitro study with polymeric particles and liposomes. Int J Pharm 2011; 413:220-8. [DOI: 10.1016/j.ijpharm.2011.04.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 04/08/2011] [Accepted: 04/14/2011] [Indexed: 11/26/2022]
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Abstract
This chapter summarizes the roles of nanomaterials in biomedical applications, focusing on those highlighted in this volume. A brief history of nanoscience and technology and a general introduction to the field are presented. Then, the chemical and physical properties of nanostructures that make them ideal for use in biomedical applications are highlighted. Examples of common applications, including sensing, imaging, and therapeutics, are given. Finally, the challenges associated with translating this field from the research laboratory to the clinic setting, in terms of the larger societal implications, are discussed.
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Affiliation(s)
- Sarah J Hurst
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL, USA.
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Abstract
The delivery of drugs to the CNS is hampered by the existence of the blood–brain barrier (BBB). Nowadays, medicinal chemists follow defined rules for the development of drugs able to cross the BBB. At the same time, the parameters needed in order to gain valuable estimates of brain drug delivery are well defined. Despite the limits in molecular weight that allow drugs to cross the BBB, it was shown that nanotech products, in particular properly functionalized nanoparticles, spherical particles of approximately 200 nm in diameter, are able to cross the BBB after intravenous administration and act as drug carriers for CNS. Moreover, peptides as ligands for receptors present on the brain endothelium, or able to cross the BBB and to act as carriers for CNS drug delivery in the form of conjugates with drugs, have been discovered and started to be studied as targeting moieties for nanoparticulate systems. This article will discuss the results obtained so far in the field of nanoparticle drug carriers for CNS and highlight the parameters needed in order to fully characterize these hitherto largely unknown delivery systems. Even if promising results have been obtained, more studies are needed in order to fully evaluate the clinical potential of this drug-delivery system.
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Ruozi B, Riva G, Belletti D, Tosi G, Forni F, Mucci A, Barozzi P, Luppi M, Vandelli M. Cidofovir-loaded liposomes: an intro-study using BCBL-1 cell line as a model for primary effusion lymphoma. Eur J Pharm Sci 2010; 41:254-64. [DOI: 10.1016/j.ejps.2010.06.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Accepted: 06/19/2010] [Indexed: 11/17/2022]
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Sohaebuddin SK, Thevenot PT, Baker D, Eaton JW, Tang L. Nanomaterial cytotoxicity is composition, size, and cell type dependent. Part Fibre Toxicol 2010; 7:22. [PMID: 20727197 PMCID: PMC2936333 DOI: 10.1186/1743-8977-7-22] [Citation(s) in RCA: 418] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2009] [Accepted: 08/21/2010] [Indexed: 11/17/2022] Open
Abstract
Background Despite intensive research efforts, reports of cellular responses to nanomaterials are often inconsistent and even contradictory. Additionally, relationships between the responding cell type and nanomaterial properties are not well understood. Using three model cell lines representing different physiological compartments and nanomaterials of different compositions and sizes, we have systematically investigated the influence of nanomaterial properties on the degrees and pathways of cytotoxicity. In this study, we selected nanomaterials of different compositions (TiO2 and SiO2 nanoparticles, and multi-wall carbon nanotubes [MWCNTs]) with differing size (MWCNTs of different diameters < 8 nm, 20-30 nm, > 50 nm; but same length 0.5-2 μm) to analyze the effects of composition and size on toxicity to 3T3 fibroblasts, RAW 264.7 macrophages, and telomerase-immortalized (hT) bronchiolar epithelial cells. Results Following characterization of nanomaterial properties in PBS and serum containing solutions, cells were exposed to nanomaterials of differing compositions and sizes, with cytotoxicity monitored through reduction in mitochondrial activity. In addition to cytotoxicity, the cellular response to nanomaterials was characterized by quantifying generation of reactive oxygen species, lysosomal membrane destabilization and mitochondrial permeability. The effect of these responses on cellular fate - apoptosis or necrosis - was then analyzed. Nanomaterial toxicity was variable based on exposed cell type and dependent on nanomaterial composition and size. In addition, nanomaterial exposure led to cell type dependent intracellular responses resulting in unique breakdown of cellular functions for each nanomaterial: cell combination. Conclusions Nanomaterials induce cell specific responses resulting in variable toxicity and subsequent cell fate based on the type of exposed cell. Our results indicate that the composition and size of nanomaterials as well as the target cell type are critical determinants of intracellular responses, degree of cytotoxicity and potential mechanisms of toxicity.
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Affiliation(s)
- Syed K Sohaebuddin
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, USA
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Maurer-Jones MA, Lin YS, Haynes CL. Functional assessment of metal oxide nanoparticle toxicity in immune cells. ACS NANO 2010; 4:3363-73. [PMID: 20481555 DOI: 10.1021/nn9018834] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Understanding the nanoparticle-cell interaction is critical for the safe development of nanomaterials. Herein, we explore the impact of three metal oxide nanoparticles, nonporous Stober SiO(2), mesoporous SiO(2), and nonporous anatase TiO(2) nanoparticles, on primary culture mast cells. Using transmission electron microscopy and inductively coupled plasma atomic emission spectroscopy, we demonstrate that each class of nanoparticle is internalized by the mast cells, localizing primarily in the secretory granules, with uptake efficiency increasing in the following order: nonporous SiO(2) < porous SiO(2) < nonporous TiO(2) nanoparticles. The influence of nanoparticle-laden granules was assessed using carbon-fiber microelectrode amperometry measurements that reveal functional changes in chemical messenger secretion from mast cell granules. Both nonporous and porous SiO(2) nanoparticles cause a decrease in the number of molecules released per granule, with nonporous SiO(2) also inducing a decrease in the amperometric spike frequency and, therefore, having a larger impact on cell function. As the two classes of SiO(2) nanoparticles vary only in their porosity, these results suggest that, while the mesoporous SiO(2) has a drastically larger total surface area due to the pores, the cell-contactable surface area, which is higher for the nonporous SiO(2), is more important in determining a nanoparticles' cellular impact. In comparison, exposure to nonporous TiO(2) slows the kinetics of secretion without altering the number of molecules released from the average granule. The varying immune cell response following exposure to nonporous SiO(2) and nonporous TiO(2) indicates that the nanoparticle-cell interactions are also modulated by surface chemistry.
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Affiliation(s)
- Melissa A Maurer-Jones
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, USA
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Abstract
Cancer nanotechnology has the potential to dramatically improve current approaches to cancer detection, diagnosis, imaging, and therapy while reducing toxicity associated with traditional cancer therapy (1, 2). In this overview, we will define cancer nanotechnology, consider issues related to application of nanotechnology for cancer imaging and therapy, and broadly consider implications for continued development in nanotechnology for the future of clinical cancer care. These considerations will place in perspective the methodological approaches in cancer nanotechnology and subject reviews outlined in this volume.
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Bioanalytical tools for single-cell study of exocytosis. Anal Bioanal Chem 2010; 397:3281-304. [PMID: 20521141 DOI: 10.1007/s00216-010-3843-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 05/08/2010] [Accepted: 05/11/2010] [Indexed: 10/19/2022]
Abstract
Regulated exocytosis is a fundamental biological process used to deliver chemical messengers for cell-cell communication via membrane fusion and content secretion. A plethora of cell types employ this chemical-based communication to achieve crucial functions in many biological systems. Neurons in the brain and platelets in the circulatory system are representative examples utilizing exocytosis for neurotransmission and blood clotting. Single-cell studies of regulated exocytosis in the past several decades have greatly expanded our knowledge of this critical process, from vesicle/granule transport and docking at the early stages of exocytosis to membrane fusion and to eventual chemical messenger secretion. Herein, four main approaches that have been widely used to study single-cell exocytosis will be highlighted, including total internal reflection fluorescence microscopy, capillary electrophoresis, single-cell mass spectrometry, and microelectrochemistry. These techniques are arranged in the order following the route of a vesicle/granule destined for secretion. Within each section, the basic principles and experimental strategies are reviewed and representative examples are given revealing critical spatial, temporal, and chemical information of a secretory vesicle/granule at different stages of its lifetime. Lastly, an analytical chemist's perspective on potential future developments in this exciting field is discussed.
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Hu YL, Gao JQ. Potential neurotoxicity of nanoparticles. Int J Pharm 2010; 394:115-21. [PMID: 20433914 DOI: 10.1016/j.ijpharm.2010.04.026] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2009] [Revised: 04/16/2010] [Accepted: 04/19/2010] [Indexed: 10/19/2022]
Abstract
With the rapid development of nanotechnology, there is a growing interest on the application of nanoparticles in various fields such as photonics, catalysis, magnetics, and biotechnology including cosmetics, pharmaceutics, and medicines. However, little is known about their potential toxicity to human health. Owing to their special properties, nanoparticles have the capacity to bypass the blood-brain barrier (BBB). However, the toxic effects of nanoparticles on central nervous system (CNS) function are still lacking. And the interactions of nanoparticles with the cells and tissues in CNS are poorly understood. Thus, neurotoxicity induced by nanoparticles is still a new topic that requires more attention. In this review, we summarized the pathways by which the nanoparticles could enter into the CNS and the recent investigations on the neurotoxicity of nanoparticles both in vitro and in vivo, as well as the potential mechanisms. Furthermore, the future direction in the neurotoxicity studies of nanoparticles is also discussed.
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Affiliation(s)
- Yu-Lan Hu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, 388 Yuhangtang Road, Hangzhou, Zhejiang 310058, PR China
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Soenen SJH, Nuytten N, De Meyer SF, De Smedt SC, De Cuyper M. High intracellular iron oxide nanoparticle concentrations affect cellular cytoskeleton and focal adhesion kinase-mediated signaling. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2010; 6:832-42. [PMID: 20213651 DOI: 10.1002/smll.200902084] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Iron oxide nanoparticle internalization exerts detrimental effects on cell physiology for a variety of particles, but little is known about the mechanism involved. The effects of high intracellular levels of four types of iron oxide particles (Resovist, Endorem, very small organic particles, and magnetoliposomes (MLs)) on the viability and physiology of murine C17.2 neural progenitor cells and human blood outgrowth endothelial cells are reported. The particles diminish cellular proliferation and affect the actin cytoskeleton and microtubule network architectures as well as focal adhesion formation and maturation. The extent of the effects correlates with the intracellular concentration (= iron mass) of the particles, with the biggest effects for Resovist and MLs at the highest concentration (1000 microg Fe mL(-1)). Similarly, the expression of focal adhesion kinase (FAK) and the amount of activated kinase (pY397-FAK) are affected. The data suggest that high levels of perinuclear localized iron oxide nanoparticles diminish the efficiency of protein expression and sterically hinder the mature actin fibers, and could have detrimental effects on cell migration and differentiation.
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Affiliation(s)
- Stefaan J H Soenen
- Subfaculty of Medicine, Katholieke Universiteit Leuven, Interdisciplinary Research Centre, KUL-Campus Kortrijk, Lab BioNanoColloids, E. Sabbelaan 53, 8500 Kortrijk, Belgium
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Yang SG, Chang JE, Shin B, Park S, Na K, Shim CK. 99mTc-hematoporphyrin linked albumin nanoparticles for lung cancer targeted photodynamic therapy and imaging. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01544j] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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