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Kumari M, Sarkar B, Mukherjee K. Nanoscale calcium oxide and its biomedical applications: A comprehensive review. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Mahmud N, Anik MI, Hossain MK, Khan MI, Uddin S, Ashrafuzzaman M, Rahaman MM. Advances in Nanomaterial-Based Platforms to Combat COVID-19: Diagnostics, Preventions, Therapeutics, and Vaccine Developments. ACS APPLIED BIO MATERIALS 2022; 5:2431-2460. [PMID: 35583460 PMCID: PMC9128020 DOI: 10.1021/acsabm.2c00123] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/24/2022] [Indexed: 12/12/2022]
Abstract
The COVID-19 pandemic caused by the SARS-CoV-2, a ribonucleic acid (RNA) virus that emerged less than two years ago but has caused nearly 6.1 million deaths to date. Recently developed variants of the SARS-CoV-2 virus have been shown to be more potent and expanded at a faster rate. Until now, there is no specific and effective treatment for SARS-CoV-2 in terms of reliable and sustainable recovery. Precaution, prevention, and vaccinations are the only ways to keep the pandemic situation under control. Medical and scientific professionals are now focusing on the repurposing of previous technology and trying to develop more fruitful methodologies to detect the presence of viruses, treat the patients, precautionary items, and vaccine developments. Nanomedicine or nanobased platforms can play a crucial role in these fronts. Researchers are working on many effective approaches by nanosized particles to combat SARS-CoV-2. The role of a nanobased platform to combat SARS-CoV-2 is extremely diverse (i.e., mark to personal protective suit, rapid diagnostic tool to targeted treatment, and vaccine developments). Although there are many theoretical possibilities of a nanobased platform to combat SARS-CoV-2, until now there is an inadequate number of research targeting SARS-CoV-2 to explore such scenarios. This unique mini-review aims to compile and elaborate on the recent advances of nanobased approaches from prevention, diagnostics, treatment to vaccine developments against SARS-CoV-2, and associated challenges.
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Affiliation(s)
- Niaz Mahmud
- Department of Biomedical Engineering,
Military Institute of Science and Technology, Dhaka 1216,
Bangladesh
| | - Muzahidul I. Anik
- Department of Chemical Engineering,
University of Rhode Island, Kingston, Rhode Island 02881,
United States
| | - M. Khalid Hossain
- Interdisciplinary Graduate School of Engineering
Science, Kyushu University, Fukuoka 816-8580,
Japan
- Atomic Energy Research Establishment,
Bangladesh Atomic Energy Commission, Dhaka 1349,
Bangladesh
| | - Md Ishak Khan
- Department of Neurosurgery, University of
Pennsylvania, Philadelphia, Pennsylvania 19104, United
States
| | - Shihab Uddin
- Department of Applied Chemistry, Graduate School of
Engineering, Kyushu University, Fukuoka 819-0395,
Japan
- Department of Chemical Engineering,
Massachusetts Institute of Technology, Cambridge
Massachusetts 02139, United States
| | - Md. Ashrafuzzaman
- Department of Biomedical Engineering,
Military Institute of Science and Technology, Dhaka 1216,
Bangladesh
| | - Md Mushfiqur Rahaman
- Department of Emergency Medicine, NYU
Langone Health, New York, New York 10016, United
States
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3
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Foglizzo V, Marchiò S. Nanoparticles as Physically- and Biochemically-Tuned Drug Formulations for Cancers Therapy. Cancers (Basel) 2022; 14:cancers14102473. [PMID: 35626078 PMCID: PMC9139219 DOI: 10.3390/cancers14102473] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/26/2022] [Accepted: 05/13/2022] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Conventional antitumor drugs have limitations, including poor water solubility and lack of targeting capability, with consequent non-specific distribution, systemic toxicity, and low therapeutic index. Nanotechnology promises to overcome these drawbacks by exploiting the physical properties of diverse nanocarriers that can be linked to moieties with binding selectivity for cancer cells. The use of nanoparticles as therapeutic formulations allows a targeted delivery and a slow, controlled release of the drug(s), making them tunable modules for applications in precision medicine. In addition, nanoparticles are also being developed as cancer vaccines, offering an opportunity to increase both cellular and humoral immunity, thus providing a new weapon to beat cancer. Abstract Malignant tumors originate from a combination of genetic alterations, which induce activation of oncogenes and inactivation of oncosuppressor genes, ultimately resulting in uncontrolled growth and neoplastic transformation. Chemotherapy prevents the abnormal proliferation of cancer cells, but it also affects the entire cellular network in the human body with heavy side effects. For this reason, the ultimate aim of cancer therapy remains to selectively kill cancer cells while sparing their normal counterparts. Nanoparticle formulations have the potential to achieve this aim by providing optimized drug delivery to a pathological site with minimal accumulation in healthy tissues. In this review, we will first describe the characteristics of recently developed nanoparticles and how their physical properties and targeting functionalization are exploited depending on their therapeutic payload, route of delivery, and tumor type. Second, we will analyze how nanoparticles can overcome multidrug resistance based on their ability to combine different therapies and targeting moieties within a single formulation. Finally, we will discuss how the implementation of these strategies has led to the generation of nanoparticle-based cancer vaccines as cutting-edge instruments for cancer immunotherapy.
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Affiliation(s)
- Valentina Foglizzo
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA;
| | - Serena Marchiò
- Department of Oncology, University of Torino, 10060 Candiolo, Italy
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy
- Correspondence: ; Tel.: +39-01199333239
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4
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Parvez S, Kaushik M, Ali M, Alam MM, Ali J, Tabassum H, Kaushik P. Dodging blood brain barrier with "nano" warriors: Novel strategy against ischemic stroke. Theranostics 2022; 12:689-719. [PMID: 34976208 PMCID: PMC8692911 DOI: 10.7150/thno.64806] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 10/14/2021] [Indexed: 12/13/2022] Open
Abstract
Ischemic stroke (IS) is one of the leading causes of death and disability resulting in inevitable burden globally. Ischemic injury initiates cascade of pathological events comprising energy dwindling, failure of ionic gradients, failure of blood brain barrier (BBB), vasogenic edema, calcium over accumulation, excitotoxicity, increased oxidative stress, mitochondrial dysfunction, inflammation and eventually cell death. In spite of such complexity of the disease, the only treatment approved by US Food and Drug Administration (FDA) is tissue plasminogen activator (t-PA). This therapy overcome blood deficiency in the brain along with side effects of reperfusion which are responsible for considerable tissue injury. Therefore, there is urgent need of novel therapeutic perspectives that can protect the integrity of BBB and salvageable brain tissue. Advancement in nanomedicine is empowering new approaches that are potent to improve the understanding and treatment of the IS. Herein, we focus nanomaterial mediated drug delivery systems (DDSs) and their role to bypass and cross BBB especially via intranasal drug delivery. The various nanocarriers used in DDSs are also discussed. In a nut shell, the objective is to provide an overview of use of nanomedicine in the diagnosis and treatment of IS to facilitate the research from benchtop to bedside.
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5
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Ghadami SA, Ahmadi Z, Moosavi-Nejad Z. The albumin-based nanoparticle formation in relation to protein aggregation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119489. [PMID: 33524819 DOI: 10.1016/j.saa.2021.119489] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 01/05/2021] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Albumin is an attractive protein for the preparation of nanoparticle with possible therapeutic applications, due to its biodegradable, nontoxic, non-immunogenic, and metabolizable properties. Many studies have investigated the formation of albumin nanoparticles, generally by the desolvation or coacervation approaches. One of the most important parameters that should be considered in the formation of nanoparticles is their morphology (size and shape). There are many proposals to control the nanoparticle size, but it remains a challenge for researchers yet. In this study, we showed that control of BSA-based nanoparticles/microparticles size could be achieved by varying the temperature and pH and therefore controlling the rate of aggregation. The aggregation behavior was monitored by UV-Vis spectroscopy, SEM, and dye-binding assay. Our results provide more options for the size and shape control of BSA-based nanoparticle in natural buffer systems. The aggregation of BSA at different temperatures within the range of 50-80 °C were studied under the effect of different pHs in the range of 4.7-6.2. In this research, we found that protein aggregation under extreme conditions of pH and temperature, or at the pH near to pI appears to be amorphous, and at the pH above the pI seems to be the amyloid fibril structure. In some instances where the aggregation is neither too fast nor too slow, in the initial phase of the aggregation process, nanoparticle structures can be identified and separated by mechanistic approaches. This observation suggests that the best condition for monitoring the formation of albumin-based nanoparticles could be pH 5.7, 70 °C. Satisfactory rationalization of all aspects of our experimental observation requires further and more detailed study.
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Affiliation(s)
| | - Zahra Ahmadi
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
| | - Zahra Moosavi-Nejad
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran.
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6
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Longo R, Gorrasi G, Guadagno L. Electromagnetically Stimuli-Responsive Nanoparticles-Based Systems for Biomedical Applications: Recent Advances and Future Perspectives. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:848. [PMID: 33810343 PMCID: PMC8065448 DOI: 10.3390/nano11040848] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/18/2021] [Accepted: 03/23/2021] [Indexed: 12/18/2022]
Abstract
Nanoparticles (NPs) in the biomedical field are known for many decades as carriers for drugs that are used to overcome biological barriers and reduce drug doses to be administrated. Some types of NPs can interact with external stimuli, such as electromagnetic radiations, promoting interesting effects (e.g., hyperthermia) or even modifying the interactions between electromagnetic field and the biological system (e.g., electroporation). For these reasons, at present these nanomaterial applications are intensively studied, especially for drugs that manifest relevant side effects, for which it is necessary to find alternatives in order to reduce the effective dose. In this review, the main electromagnetic-induced effects are deeply analyzed, with a particular focus on the activation of hyperthermia and electroporation phenomena, showing the enhanced biological performance resulting from an engineered/tailored design of the nanoparticle characteristics. Moreover, the possibility of integrating these nanofillers in polymeric matrices (e.g., electrospun membranes) is described and discussed in light of promising applications resulting from new transdermal drug delivery systems with controllable morphology and release kinetics controlled by a suitable stimulation of the interacting systems (nanofiller and interacting cells).
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Affiliation(s)
- Raffaele Longo
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Salerno, Italy;
| | | | - Liberata Guadagno
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Salerno, Italy;
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7
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Saleem K, Khursheed Z, Hano C, Anjum I, Anjum S. Applications of Nanomaterials in Leishmaniasis: A Focus on Recent Advances and Challenges. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1749. [PMID: 31818029 PMCID: PMC6955954 DOI: 10.3390/nano9121749] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/03/2019] [Accepted: 12/05/2019] [Indexed: 01/19/2023]
Abstract
Leishmaniasis is a widely distributed protozoan vector-born disease affecting almost 350 million people. Initially, chemotherapeutic drugs were employed for leishmania treatment but they had toxic side effects. Various nanotechnology-based techniques and products have emerged as anti-leishmanial drugs, including liposomes, lipid nano-capsules, metal and metallic oxide nanoparticles, polymeric nanoparticles, nanotubes and nanovaccines, due to their unique properties, such as bioavailability, lowered toxicity, targeted drug delivery, and biodegradability. Many new studies have emerged with nanoparticles serving as promising therapeutic agent for anti-leishmanial disease treatment. Liposomal Amphotericin B (AmB) is one of the successful nano-based drugs with high efficacy and negligible toxicity. A new nanovaccine concept has been studied as a carrier for targeted delivery. This review discusses different nanotechnology-based techniques, materials, and their efficacies in leishmaniasis treatment and their futuristic improvements.
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Affiliation(s)
- Kiran Saleem
- Department of Biotechnology, Kinnaird College for Women, Lahore 54000, Pakistan; (K.S.); (Z.K.); (I.A.)
| | - Zainab Khursheed
- Department of Biotechnology, Kinnaird College for Women, Lahore 54000, Pakistan; (K.S.); (Z.K.); (I.A.)
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRA USC1328/Université d’Orléans, Chartres 28000, France;
| | - Iram Anjum
- Department of Biotechnology, Kinnaird College for Women, Lahore 54000, Pakistan; (K.S.); (Z.K.); (I.A.)
| | - Sumaira Anjum
- Department of Biotechnology, Kinnaird College for Women, Lahore 54000, Pakistan; (K.S.); (Z.K.); (I.A.)
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8
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Mura S, Fattal E, Nicolas J. From poly(alkyl cyanoacrylate) to squalene as core material for the design of nanomedicines. J Drug Target 2019; 27:470-501. [PMID: 30720372 DOI: 10.1080/1061186x.2019.1579822] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review article covers the most important steps of the pioneering work of Patrick Couvreur and tries to shed light on his outstanding career that has been a source of inspiration for many decades. His discovery of biodegradable poly(alkyl cyanoacrylate) (PACA) nanoparticles (NPs) has opened large perspectives in nanomedicine. Indeed, NPs made from various types of alkyl cyanoacrylate monomers have been used in different applications, such as the treatment of intracellular infections or the treatment of multidrug resistant hepatocarcinoma. This latest application led to the Phase III clinical trial of Livatag®, a PACA nanoparticulate formulation of doxorubicin. Despite the success of PACA NPs, the development of a novel type of NP with higher drug loadings and lower burst release was tackled by the discovery of squalene-based nanomedicines where the drug is covalently linked to the lipid derivative and the resulting conjugate is self-assembled into NPs. This pioneering work was accompanied by a wide range of novel applications which mainly dealt with the management of unmet medical needs (e.g. pancreatic cancer, brain ischaemia and spinal cord injury).
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Affiliation(s)
- Simona Mura
- a Institut Galien Paris-Sud, UMR CNRS 8612, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay , Châtenay-Malabry , France
| | - Elias Fattal
- a Institut Galien Paris-Sud, UMR CNRS 8612, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay , Châtenay-Malabry , France
| | - Julien Nicolas
- a Institut Galien Paris-Sud, UMR CNRS 8612, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay , Châtenay-Malabry , France
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Abstract
The objective of this article is to propose a re-visiting of the paradigms of nano-carriers based drug routeing from an industrial viewpoint. The accumulation of drugs in specific body compartments after intravenous administration and the improvement of the oral bioavailability of peptides were taken as examples to propose an update of the translational framework preceding industrialisation. In addition to the recent advances on the biopharmacy of nano-carriers, the evolution of adjacent disciplines such as the biology of diseases, the chemistry of polymers, lipids and conjugates, the physico-chemistry of colloids and the assembling of materials at the nanoscale (referred to as microfluidics) are taken into account to consider new avenues in the applications of drug nano-carriers. The deeper integration of the properties of the drug and of the nano-carrier, in the specific context of the disease, advocates for product oriented programmes. At the same time, the advent of powerful collaborative digital tools makes possible the extension of the expertise spectrum. In this open-innovation framework, the Technology Readiness Levels (TRLs) of nano-carriers are proposed as a roadmap for the translational process from the Research stage to the Proof-of-Concept in human.
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Affiliation(s)
- Harivardhan Reddy Lakkireddy
- a Pre-Development Sciences, Pharmaceutical Development Platform , Sanofi Research & Development , Paris , France
| | - Didier V Bazile
- b Integrated CMC External Innovation , Sanofi Research & Development , Paris , France
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10
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Angelopoulou A, Voulgari E, Kolokithas-Ntoukas A, Bakandritsos A, Avgoustakis K. Magnetic Nanoparticles for the Delivery of Dapagliflozin to Hypoxic Tumors: Physicochemical Characterization and Cell Studies. AAPS PharmSciTech 2018; 19:621-633. [PMID: 28924948 DOI: 10.1208/s12249-017-0874-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 09/05/2017] [Indexed: 11/30/2022] Open
Abstract
In solid tumors, hypoxia (lack of oxygen) is developed, which leads to the development of resistance of tumor cells to chemotherapy and radiotherapy through various mechanisms. Nevertheless, hypoxic cells are particularly vulnerable when glycolysis is inhibited. For this reason, in this study, the development of magnetically targetable nanocarriers of the sodium-glucose transporter protein (SGLT2) inhibitor dapagliflozin (DAPA) was developed for the selective delivery of DAPA in tumors. This nanomedicine in combination with radiotherapy or chemotherapy should be useful for effective treatment of hypoxic tumors. The magnetic nanoparticles consisted of a magnetic iron oxide core and a poly(methacrylic acid)-graft-poly(ethyleneglycol methacrylate) (PMAA-g-PEGMA) polymeric shell. The drug (dapagliflozin) molecules were conjugated on the surface of these nanoparticles via in vivo hydrolysable ester bonds. The nanoparticles had an average size of ~ 70 nm and exhibited a DAPA loading capacity 10.75% (w/w) for a theoretical loading 21.68% (w/w). The magnetic responsiveness of the nanoparticles was confirmed with magnetophoresis experiments. The dapagliflozin-loaded magnetic nanoparticles exhibited excellent colloidal stability in aqueous and biological media. Minimal (less than 15% in 24 h) drug release from the nanoparticles occurred in physiological pH 7.4; however, drug release was significantly accelerated in pH 5.5. Drug release was also accelerated (triggered) under the influence of an alternating magnetic field. The DAPA-loaded nanoparticles exhibited higher in vitro anticancer activity (cytotoxicity) against A549 human lung cancer cells than free DAPA. The application of an external magnetic field gradient increased the uptake of nanoparticles by cells, leading to increased cytotoxicity. The results justify further in vivo studies of the suitability of DAPA-loaded magnetic nanoparticles for the treatment of hypoxic tumors.
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11
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Singh VK, Keservani RK. Application of Nanoparticles as a Drug Delivery System. PHARMACEUTICAL SCIENCES 2017. [DOI: 10.4018/978-1-5225-1762-7.ch006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Small colloidal particles having their diameter in the range of 50 to 500nm are defined as Nanoparticles. These are usually prepared either by using biodegradable or non-biodegradable polymers and are usually classified in two broad categories: (1) Nanocapsules: a type of reservoir system in which an oil or aqueous core is surrounded by a polymeric membrane. (2) Nanospheres: a type of matrix system. Preparation of nanoparticle as a drug delivery system is one of the most widely accepted approach since the prepration of nanoparticle were easy and convenient to scale up. Their high stability and conveniently easy to freeze-dried their preparations provide some additional advantages to choose Nanoparticles as a good drug delivery system. Inspite of them Nanoparticles were were able to achieve with success tissue targeting of many drugs (antibiotics, cytostatics, peptides and proteins, nucleic acids, etc.).
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Bronze-Uhle ES, Costa BC, Ximenes VF, Lisboa-Filho PN. Synthetic nanoparticles of bovine serum albumin with entrapped salicylic acid. Nanotechnol Sci Appl 2016; 10:11-21. [PMID: 28096662 PMCID: PMC5207451 DOI: 10.2147/nsa.s117018] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Bovine serum albumin (BSA) is highly water soluble and binds drugs or inorganic substances noncovalently for their effective delivery to various affected areas of the body. Due to the well-defined structure of the protein, containing charged amino acids, albumin nanoparticles (NPs) may allow electrostatic adsorption of negatively or positively charged molecules, such that substantial amounts of drug can be incorporated within the particle, due to different albumin-binding sites. During the synthesis procedure, pH changes significantly. This variation modifies the net charge on the surface of the protein, varying the size and behavior of NPs as the drug delivery system. In this study, the synthesis of BSA NPs, by a desolvation process, was studied with salicylic acid (SA) as the active agent. SA and salicylates are components of various plants and have been used for medication with anti-inflammatory, antibacterial, and antifungal properties. However, when administered orally to adults (usual dose provided by the manufacturer), there is 50% decomposition of salicylates. Thus, there has been a search for some time to develop new systems to improve the bioavailability of SA and salicylates in the human body. Taking this into account, during synthesis, the pH was varied (5.4, 7.4, and 9) to evaluate its influence on the size and release of SA of the formed NPs. The samples were analyzed using field-emission scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, zeta potential, and dynamic light scattering. Through fluorescence, it was possible to analyze the release of SA in vitro in phosphate-buffered saline solution. The results of chemical morphology characterization and in vitro release studies indicated the potential use of these NPs as drug carriers in biological systems requiring a fast release of SA.
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Affiliation(s)
- ES Bronze-Uhle
- Department of Physics, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
| | - BC Costa
- Department of Physics, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
| | - VF Ximenes
- Department of Chemistry, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
| | - PN Lisboa-Filho
- Department of Physics, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
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Rodzinski A, Guduru R, Liang P, Hadjikhani A, Stewart T, Stimphil E, Runowicz C, Cote R, Altman N, Datar R, Khizroev S. Targeted and controlled anticancer drug delivery and release with magnetoelectric nanoparticles. Sci Rep 2016; 6:20867. [PMID: 26875783 PMCID: PMC4753509 DOI: 10.1038/srep20867] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 01/08/2016] [Indexed: 12/21/2022] Open
Abstract
It is a challenge to eradicate tumor cells while sparing normal cells. We used magnetoelectric nanoparticles (MENs) to control drug delivery and release. The physics is due to electric-field interactions (i) between MENs and a drug and (ii) between drug-loaded MENs and cells. MENs distinguish cancer cells from normal cells through the membrane's electric properties; cancer cells have a significantly smaller threshold field to induce electroporation. In vitro and in vivo studies (nude mice with SKOV-3 xenografts) showed that (i) drug (paclitaxel (PTX)) could be attached to MENs (30-nm CoFe2O4@BaTiO3 nanostructures) through surface functionalization to avoid its premature release, (ii) drug-loaded MENs could be delivered into cancer cells via application of a d.c. field (~100 Oe), and (iii) the drug could be released off MENs on demand via application of an a.c. field (~50 Oe, 100 Hz). The cell lysate content was measured with scanning probe microscopy and spectrophotometry. MENs and control ferromagnetic and polymer nanoparticles conjugated with HER2-neu antibodies, all loaded with PTX were weekly administrated intravenously. Only the mice treated with PTX-loaded MENs (15/200 μg) in a field for three months were completely cured, as confirmed through infrared imaging and post-euthanasia histology studies via energy-dispersive spectroscopy and immunohistochemistry.
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Affiliation(s)
- Alexandra Rodzinski
- Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, USAFlorida 33199, USA
| | - Rakesh Guduru
- Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, USAFlorida 33199, USA
| | - Ping Liang
- Electrical and Computer Engineering, University of California, Riverside, CA 92521, USA
- Cellular Nanomed Inc., Weston, FL 33331, USA
| | - Ali Hadjikhani
- Department of Electrical and Computer Engineering, Florida International University, Miami, FL 33174, USA
| | - Tiffanie Stewart
- Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, USAFlorida 33199, USA
| | - Emmanuel Stimphil
- Department of Electrical and Computer Engineering, Florida International University, Miami, FL 33174, USA
| | - Carolyn Runowicz
- Department of Obstetrics and Gynecology, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida 33199, USA
| | - Richard Cote
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- John T. Macdonald Foundation Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33136, USA.
| | - Norman Altman
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Ram Datar
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- John T. Macdonald Foundation Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33136, USA.
| | - Sakhrat Khizroev
- Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, USAFlorida 33199, USA
- Department of Electrical and Computer Engineering, Florida International University, Miami, FL 33174, USA
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14
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Miller KP, Wang L, Benicewicz BC, Decho AW. Inorganic nanoparticles engineered to attack bacteria. Chem Soc Rev 2015; 44:7787-807. [DOI: 10.1039/c5cs00041f] [Citation(s) in RCA: 181] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Antibiotics delivered to bacteria using engineered nanoparticles (NP), offer a powerful and efficient means to kill or control bacteria, especially those already resistant to antibiotics.
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Affiliation(s)
- Kristen P. Miller
- Department of Environmental Health Sciences
- Arnold School of Public Health
- University of South Carolina
- Columbia
- USA
| | - Lei Wang
- Department of Chemistry and Biochemistry
- College of Arts and Sciences
- University of South Carolina
- Columbia
- USA
| | - Brian C. Benicewicz
- Department of Chemistry and Biochemistry
- College of Arts and Sciences
- University of South Carolina
- Columbia
- USA
| | - Alan W. Decho
- Department of Environmental Health Sciences
- Arnold School of Public Health
- University of South Carolina
- Columbia
- USA
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15
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Monge-Fuentes V, Muehlmann LA, de Azevedo RB. Perspectives on the application of nanotechnology in photodynamic therapy for the treatment of melanoma. NANO REVIEWS 2014; 5:24381. [PMID: 25317253 PMCID: PMC4152551 DOI: 10.3402/nano.v5.24381] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 07/08/2014] [Accepted: 07/09/2014] [Indexed: 01/14/2023]
Abstract
Malignant melanoma is the most aggressive form of skin cancer and has been traditionally considered difficult to treat. The worldwide incidence of melanoma has been increasing faster than any other type of cancer. Early detection, surgery, and adjuvant therapy enable improved outcomes; nonetheless, the prognosis of metastatic melanoma remains poor. Several therapies have been investigated for the treatment of melanoma; however, current treatment options for patients with metastatic disease are limited and non-curative in the majority of cases. Photodynamic therapy (PDT) has been proposed as a promising minimally invasive therapeutic procedure that employs three essential elements to induce cell death: a photosensitizer, light of a specific wavelength, and molecular oxygen. However, classical PDT has shown some drawbacks that limit its clinical application. In view of this, the use of nanotechnology has been considered since it provides many tools that can be applied to PDT to circumvent these limitations and bring new perspectives for the application of this therapy for different types of diseases. On that ground, this review focuses on the potential use of developing nanotechnologies able to bring significant benefits for anticancer PDT, aiming to reach higher efficacy and safety for patients with malignant melanoma.
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Affiliation(s)
- Victoria Monge-Fuentes
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília-DF, Brazil
| | - Luis Alexandre Muehlmann
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília-DF, Brazil
| | - Ricardo Bentes de Azevedo
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília-DF, Brazil
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Immunomodulation of macrophages by methylglyoxal conjugated with chitosan nanoparticles against Sarcoma-180 tumor in mice. Cell Immunol 2014; 287:27-35. [DOI: 10.1016/j.cellimm.2013.11.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 10/24/2013] [Accepted: 11/27/2013] [Indexed: 11/18/2022]
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17
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Valetti S, Mura S, Stella B, Couvreur P. Rational design for multifunctional non-liposomal lipid-based nanocarriers for cancer management: theory to practice. J Nanobiotechnology 2013; 11 Suppl 1:S6. [PMID: 24564841 PMCID: PMC4029540 DOI: 10.1186/1477-3155-11-s1-s6] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Nanomedicines have gained more and more attention in cancer therapy thanks to their ability to enhance the tumour accumulation and the intracellular uptake of drugs while reducing their inactivation and toxicity. In parallel, nanocarriers have been successfully employed as diagnostic tools increasing imaging resolution holding great promises both in preclinical research and in clinical settings. Lipid-based nanocarriers are a class of biocompatible and biodegradable vehicles that provide advanced delivery of therapeutic and imaging agents, improving pharmacokinetic profile and safety. One of most promising engineering challenges is the design of innovative and versatile multifunctional targeted nanotechnologies for cancer treatment and diagnosis. This review aims to highlight rational approaches to design multifunctional non liposomal lipid-based nanocarriers providing an update of literature in this field.
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Vansnick L, Couvreur P, Christiaens-Leyh D, Roland M. Molecular weights of free and drug-loaded nanoparticles. Pharm Res 2013; 2:36-41. [PMID: 24272512 DOI: 10.1023/a:1016366022712] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
This study demonstrates that the molecular weight of polyalkylcyanoacrylate nanoparticles can be modified by the composition of the polymerization medium, the nature of the monomers and the drug to be linked to the carrier. The influence of a surfactive agent is particularly important because polymers of very high molecular weight have been obtained. Likewise, polyalkylcyanoacrylate molecular weight distribution has been greatly modified after binding doxorubicin to nanoparticles. These long polymers could induce important changes in carrier degradation, in bound drug bioavailability and in polymer excretion rate. Some additional findings have been added concerning the state of polyalkylcyanoacrylate polymer during the degradation process.
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Affiliation(s)
- L Vansnick
- Laboratoire de Pharmacie Galénique, Avenue E. Mounier, 73.20, 1200, Bruxelles, Belgium
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Nagpal K, Singh SK, Mishra DN. Chitosan nanoparticles: a promising system in novel drug delivery. Chem Pharm Bull (Tokyo) 2011; 58:1423-30. [PMID: 21048331 DOI: 10.1248/cpb.58.1423] [Citation(s) in RCA: 353] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The ability of nanoparticles to manipulate the molecules and their structures has revolutionized the conventional drug delivery system. The chitosan nanoparticles, because of their biodegradability, biocompatibility, better stability, low toxicity, simple and mild preparation methods, offer a valuable tool to novel drug delivery systems in the present scenario. Besides ionotropic gelation method, other methods such as microemulsion method, emulsification solvent diffusion method, polyelectrolyte complex method, emulsification cross-linking method, complex coacervation method and solvent evaporation method are also in use. The chitosan nanoparticles have also been reported to have key applications in parentral drug delivery, per-oral administration of drugs, in non-viral gene delivery, in vaccine delivery, in ocular drug delivery, in electrodeposition, in brain targeting drug delivery, in stability improvement, in mucosal drug delivery in controlled drug delivery of drugs, in tissue engineering and in the effective delivery of insulin. The present review describes origin and properties of chitosan and its nanoparticles along with the different methods of its preparation and the various areas of novel drug delivery where it has got its application.
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Affiliation(s)
- Kalpana Nagpal
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, India
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Rasmussen JW, Martinez E, Louka P, Wingett DG. Zinc oxide nanoparticles for selective destruction of tumor cells and potential for drug delivery applications. Expert Opin Drug Deliv 2010; 7:1063-77. [PMID: 20716019 DOI: 10.1517/17425247.2010.502560] [Citation(s) in RCA: 592] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
IMPORTANCE OF THE FIELD Metal oxide nanoparticles, including zinc oxide, are versatile platforms for biomedical applications and therapeutic intervention. There is an urgent need to develop new classes of anticancer agents, and recent studies demonstrate that ZnO nanomaterials hold considerable promise. AREAS COVERED IN THIS REVIEW This review analyzes the biomedical applications of metal oxide and ZnO nanomaterials under development at the experimental, preclinical and clinical levels. A discussion regarding the advantages, approaches and limitations surrounding the use of metal oxide nanoparticles for cancer applications and drug delivery is presented. The scope of this article is focused on ZnO, and other metal oxide nanomaterial systems, and their proposed mechanisms of cytotoxic action, as well as current approaches to improve their targeting and cytotoxicity against cancer cells. WHAT THE READER WILL GAIN This review aims to give an overview of ZnO nanomaterials in biomedical applications. TAKE HOME MESSAGE Through a better understanding of the mechanisms of action and cellular consequences resulting from nanoparticles interactions with cells, the inherent toxicity and selectivity of ZnO nanoparticles against cancer may be improved further to make them attractive new anticancer agents.
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Affiliation(s)
- John W Rasmussen
- Boise State University, Department of Biological Sciences, 1910 University Dr, Boise, ID 83725, USA
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Susa M, Milane L, Amiji MM, Hornicek FJ, Duan Z. Nanoparticles: A Promising Modality in the Treatment of Sarcomas. Pharm Res 2010; 28:260-72. [DOI: 10.1007/s11095-010-0173-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Accepted: 05/13/2010] [Indexed: 12/27/2022]
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Arias JL, Reddy LH, Couvreur P. Polymeric nanoparticulate system augmented the anticancer therapeutic efficacy of gemcitabine. J Drug Target 2009; 17:586-98. [PMID: 19694612 DOI: 10.1080/10611860903105739] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Gemcitabine hydrochloride is an anticancer nucleoside analogue indicated in clinic for the treatment of various solid tumors. Although this drug has been demonstrated to display anticancer activity against a wide variety of tumors, it is needed to be administered at high doses to elicit the required therapeutic response, simultaneously leading to severe adverse effects. We hypothesized that the efficient delivery of gemcitabine to tumors using a biodegradable carrier system could reduce the dose required to elicit sufficient therapeutic response. Thus, we have developed a nanoparticle formulation of gemcitabine suitable for parenteral administration based on the biodegradable polymer poly(octylcyanoacrylate) (POCA). The nanoparticles were synthesized by anionic polymerization of the corresponding monomer. Two drug loading methods were analyzed: the first one based on gemcitabine surface adsorption onto the preformed nanoparticles, and the second method being gemcitabine addition before the polymerization process leading to drug entrapment in the polymeric network. A detailed investigation of the capabilities of the polymer particles to load this drug is described. Gemcitabine entrapment into the polymer matrix yielded a higher drug loading and a slower drug release profile as compared with drug adsorption procedure. The main factors determining the gemcitabine incorporation to the polymer network were the nanoparticles preparation procedure, the monomer concentration, the surfactant concentration, the pH, and the drug concentration. The release kinetic of gemcitabine was found to be controlled by the pH and the type of drug incorporation. The cytotoxicity studies performed on L1210 tumor cells revealed a similar anticancer activity of the gemcitabine-loaded POCA (GPOCA) nanoparticle as free gemcitabine. Following intravenous administration into the mice bearing L1210 wt subcutaneous tumor, the GPOCA nanoparticles displayed significantly greater anticancer activity compared to free gemcitabine; this has been additionally confirmed by histology and immunohistochemistry studies, suggesting the potential of GPOCA for the efficient treatment of cancer.
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Affiliation(s)
- José L Arias
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Granada, Granada, Spain
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Tang Y, McGoron AJ. Combined effects of laser-ICG photothermotherapy and doxorubicin chemotherapy on ovarian cancer cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2009; 97:138-44. [PMID: 19811928 DOI: 10.1016/j.jphotobiol.2009.09.001] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Revised: 08/31/2009] [Accepted: 09/03/2009] [Indexed: 12/31/2022]
Abstract
Doxorubicin (DOX) is an anthracycline antibiotic widely used in cancer chemotherapy. Its use is limited by cardiac toxicity and drug resistance. Hyperthermia can aid the functionality of DOX, but current hyperthermia delivery methods are hard to apply selectively and locally. The slow temperature increase associated with the external heating may lead to thermal tolerance in cancer cells. The FDA approved dye indocynine green (ICG) has been demonstrated to absorb near-infrared (NIR) light at 808 nm (ideal for tissue penetration) and emit the energy as heat, making it an ideal agent for localized hyperthermia with a rapid rate of temperature increase. The purpose of this study was to investigate the in vitro cytotoxic effect of combined chemotherapy and hyperthermia to a DOX resistant ovarian cancer cell line (SKOV-3). The effect of two different heating methods, ICG induced rapid rate heating and an incubator induced slow rate heating, were compared. All the experiments were conducted in 96-well plates. Cells were subjected to different concentrations of DOX and 60 min 43 degrees C incubation or 5 microM of ICG with 1 min 808 nm NIR laser. SRB assay was used to measure cell proliferation. ICG itself without laser irradiation was not toxic to SKOV-3 cells. The two types of hyperthermia individually produced similar cytotoxicity. DOX by itself was toxic with an IC(50) value of about 5 microM. Hyperthermia in combination with DOX achieved significantly greater cell killing/growth inhibition at all DOX concentrations compared to DOX alone. A subadditive cytotoxic effect was observed by combining DOX and 60 min 43 degrees C incubation which lead to a lowered DOX IC(50) value of about 1 microM. This value was even lower with 1 min laser-ICG photothermotherapy (0.1 microM) and, though not statistically significant, a synergistic effect may exist between DOX and laser-ICG photothermotherapy. The rate of heating may have an effect on chemotherapy-hyperthermia interaction. In conclusion, the combination of photothermal therapy and chemotherapy may provide a valuable tool for cancer treatment with minimized side effect.
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Affiliation(s)
- Yuan Tang
- Department of Biomedical Engineering, Florida International University, 10555 West Flagler Street, Miami, FL 33174, USA
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27
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Vauthier C, Labarre D, Ponchel G. Design aspects of poly(alkylcyanoacrylate) nanoparticles for drug delivery. J Drug Target 2008; 15:641-63. [PMID: 18041633 DOI: 10.1080/10611860701603372] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Poly(alkylcyanoacrylate) (PACA) nanoparticles were first developed 25 years ago taking advantage of the in vivo degradation potential of the polymer and of its good acceptance by living tissues. Since then, various PACA nanoparticles were designed including nanospheres, oil-containing and water-containing nanocapsules. This made possible the in vivo delivery of many types of drugs including those presenting serious challenging delivery problems. PACA nanoparticles were proven to improve treatments of severe diseases like cancer, infections and metabolic disease. For instance, they can transport drugs across barriers allowing delivery of therapeutic doses in difficult tissues to reach including in the brain or in multidrug resistant cells. This review gives an update on the more recent developments and achievements on design aspects of PACA nanoparticles as delivery systems for various drugs to be administered in vivo by different routes of administration.
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Abstract
Numerous investigations have shown that both tissue and cell distribution profiles of anticancer drugs can be controlled by their entrapment in submicronic colloidal systems (nanoparticles). The rationale behind this approach is to increase antitumor efficacy, while reducing systemic side-effects. This review provides an update of tumor targeting with conventional or long-circulating nanoparticles. The in vivo fate of these systems, after intravascular or tumoral administration, is discussed, as well as the mechanism involved in tumor regression. Nanoparticles are also of benefit for the selective delivery of oligonucleotides to tumor cells. Moreover, certain types of nanoparticles showed some interesting capacity to reverse MDR resistance, which is a major problem in chemotherapy. The first experiments, aiming to decorate nanoparticles with molecular ligand for 'active' targeting of cancerous cells, are also discussed here. The last part of this review focus on the application of nanoparticles in imaging for cancer diagnosis.
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Affiliation(s)
- Irène Brigger
- University of Paris-Sud XI, UMR CNRS 8612, Faculty of Pharmacy, 5 rue J.B. Clément, 92296 Châtenay-Malabry, France
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Lode J, Fichtner I, Kreuter J, Berndt A, Diederichs JE, Reszka R. Influence of surface-modifying surfactants on the pharmacokinetic behavior of 14C-poly (methylmethacrylate) nanoparticles in experimental tumor models. Pharm Res 2001; 18:1613-9. [PMID: 11758771 DOI: 10.1023/a:1013094801351] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
PURPOSE The aim of this study was to investigate the different pharmacokinetic behavior of surface-modified poly(methylmethacrylate) (PMMA) nanoparticles. METHODS The particles were 14C-labeled and coated with polysorbate 80, poloxamer 407, and poloxamine 908. Plain particles served as control particles. In vivo studies were performed in three tumor models differing in growth, localization, and origin. Particle suspensions were administered via the tail vein, and at given time animals were killed and organs were dissected for determination of PMMA concentration. RESULTS For the PMMA nanoparticles coated with poloxamer 407 or poloxamine 908, high and long-lasting concentrations were observed in the melanoma and at a lower level in the breast cancer model. In an intracerebrally growing glioma xenograft, the lowest concentrations that did not differ between the tumor-loaded and tumor-free hemispheres were measured. Organ distribution of the four investigated batches differed significantly. For instance, poloxamer 407- and poloxamine 908-coated particles circulated over a longer period of time in the blood, leading additionally to a higher tumor accumulation. In contrast, plain and polysorbate 80-coated particles accumulated mainly in the liver. The strong expression of vascular endothelial growth factor and Flk-1 in the melanoma correlated with high concentrations of PMMA in this tumor. CONCLUSION The degree of accumulation of PMMA nanoparticles in tumors depended on the particle surface properties and the specific growth differences of tumors.
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Affiliation(s)
- J Lode
- Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
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31
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Damgé C, Aprahamian M, Humbert W, Pinget M. Ileal uptake of polyalkylcyanoacrylate nanocapsules in the rat. J Pharm Pharmacol 2000; 52:1049-56. [PMID: 11045884 DOI: 10.1211/0022357001774967] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The ileal uptake of polyalkylcyanoacrylate nanocapsules (less than 300 nm in diameter) has been investigated in the rat. Iodised oil (Lipiodol) was used as the tracer for X-ray microprobe analysis in scanning electron microscopy. Lipiodol nanocapsules, or an emulsion of Lipiodol, were administered in the lumen of an isolated ileal loop of rat. Lipiodol nanocapsules improved the absorption of the tracer as indicated by increased concentrations of iodine in the mesenteric blood (+27%, P < 0-01, compared with Lipiodol emulsion). Intestinal biopsies were taken at different time points and the samples underwent cryofixation and freeze-drying. The nanocapsules were characterized by their strong iodine emission, and electron microscopy of the biopsy samples revealed nanocapsules in the intraluminal mucus of the non-follicular epithelium, then in the intercellular spaces between enterocytes, and finally the nanocapsules were found within intravillus capillaries. However, nanocapsules were most abundant in the Peyer's patches, where the intestinal epithelium had been crossed by way of the specialized epithelial cells, designated membranous cells, or M cells, and their adjacent absorptive cells. These observations were confirmed quantitatively by measuring iodine concentrations in the various tissue compartments. Ten minutes after the intraluminal administration of Lipiodol nanocapsules, the emission of iodine peaked in the mucus (+77%, P < 0.01), in M cells (+366%, P <0.001), in enterocytes adjacent to M cells (+70%, P < 0.05) and in lymph vessels (+59%, P < 0.05). Polyalkylcyanoacrylate nanocapsules were able to pass through the ileal mucosa of the rat via a paracellular pathway in the non-follicular epithelium, and most predominantly, via M cells and adjacent enterocytes in Peyer's patches.
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Affiliation(s)
- C Damgé
- Centre Européen d'Etude du Diabète, Faculté de Médecine, Strasbourg, France
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Michaelis M, Matousek J, Vogel JU, Slavik T, Langer K, Cinatl J, Kreuter J, Schwabe D, Cinatl J. Bovine seminal ribonuclease attached to nanoparticles made of polylactic acid kills leukemia and lymphoma cell lines in vitro. Anticancer Drugs 2000; 11:369-76. [PMID: 10912953 DOI: 10.1097/00001813-200006000-00007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Bovine seminal ribonuclease (BS-RNase) is a protein with a number of biological effects. It shows antitumoral, aspermatogenic, antiembryonic, immunosuppressive and antiviral properties. The cytotoxic effects appear to be specific for tumor cells as non-malignant cells seem to be unaffected in vitro. Unfortunately, the in vivo application of BS-RNase so far was successful only when it was administered intratumorally. Therefore, the objective of the present investigation was to improve the properties of BS-RNase by attachment to nanoparticles made of polylactic acid (PLA-NP) using an adsorption method. This preparation was tested in vitro against leukemia (MOLT-4) and lymphoma (H9) cell lines sensitive and resistant to cytarabine. No difference between the nanoparticle preparation and pure BS-RNase was found in these tests. To examine the in vivo effects, the preparations were tested for their aspermatogenic and antiembryonal efficacy compared to the pure BS-RNase as a rapid test for antitumoral activity. The aspermatogenic and antiembryonal effects were enhanced by the nanoparticle preparation. Consequently, BS-RNase loaded adsorptively to PLA-NP holds promise for the in vivo use as an antitumoral agent. Further research will investigate the efficacy of this preparations in an in vivo tumor model.
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Affiliation(s)
- M Michaelis
- Institut für Medizinische Virologie, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt, Germany
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Yu WP, Wong JP, Chang TM. Biodegradable polylactic acid nanocapsules containing ciprofloxacin: preparation and characterization. ARTIFICIAL CELLS, BLOOD SUBSTITUTES, AND IMMOBILIZATION BIOTECHNOLOGY 1999; 27:263-78. [PMID: 10226689 DOI: 10.3109/10731199909117699] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Nanocapsules have been studied as carriers to deliver different types of drugs into macrophages. Many studies have shown that the nanocapsules can enhance the biological response of the drugs. In this study, we prepared ciprofloxacin nanocapsules with polylactic acid. The ciprofloxacin is an antibacterial agent. The ciprofloxacin nanocapsules prepared have a means diameter of 168 nm. In phosphate buffer at pH 7.4, high encapsulation rate was obtained. The nanocapsules with high encapsulation rate can also be made from ciprofloxacin base.
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Affiliation(s)
- W P Yu
- Artificial Cells and Organs Research Centre, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
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Mitoxantrone polybutyl cyanoacrylate nanoparticles as an anti-neoplastic targeting drug delivery system. Int J Pharm 1996. [DOI: 10.1016/0378-5173(96)04550-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Vera P, Salcedo J, Delgado AV, Ruiz MA, Gallardo V. Adsorption of betamethasone disodium phosphate on ethylcellulose latex: an electrokinetic study. J Pharm Sci 1996; 85:468-72. [PMID: 8742936 DOI: 10.1021/js950310t] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The use of polymer latexes as vehicles for drug transport and controlled delivery in the body is a very active research field in applied colloid science. In this work, the polymer chosen is a commercially available ethylcellulose-based material, Aquacoat. We report electrokinetic (electrophoresis) data on this polymer in the presence of the soluble glucocorticoid betamethasone disodium phosphate (BMP). The electrophoretic mobility of the particles becomes more negative as the concentration of BMP in the medium is increased between 10(-5) and 10(-3) M, this demonstrating that the negative species produced upon dissolution of BMP adsorb on the particles; this trend is reversed for higher concentrations due to the phenomenon of double layer thickness. When pH is increased at constant BMP concentration, the negative mobility increases in absolute value, but it reaches lower values than attained in the absence of BMP. This is interpreted as another consequence of adsorption, since the ionization constants of the phosphate and sulfate groups are different. Such adsorption is confirmed and measured by spectrophotometric analysis of the supernatants after centrifugation of the suspensions; it is found that the adsorption density increases with the initial concentration of BMP in the medium, an almost vertical isotherm being obtained for concentrations above 5 x 10(-3) M, possibly due to bidimensional aggregation of the adsorbed molecules and multilayer adsorption at higher concentrations. It is found that the adsorbed amount increases with the ionic strength of the medium as a consequence of screening of the particle and BMP charges, whereas these electrostatic contributions to adsorption manifest also in the pH dependence of adsorption. IR analysis of the particles after equilibration with BMP solutions of increasing concentration agrees well with adsorption data.
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Affiliation(s)
- P Vera
- Departamento de Física Aplicada, Facultad de Ciencias, Universidad de Granada, Spain
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Henry-Toulmé N, Grouselle M, Ramaseilles C. Multidrug resistance bypass in cells exposed to doxorubicin-loaded nanospheres. Absence of endocytosis. Biochem Pharmacol 1995; 50:1135-9. [PMID: 7488226 DOI: 10.1016/0006-2952(95)00226-p] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Multidrug resistance bypass has been achieved in vitro with polyalkylcyanoacrylate nanospheres loaded with doxorubicin as previously shown by Cuvier et al. Fluorescence-imaging experiments were performed to determine if the endocytosis of the particles by the cells could be responsible for this activity. The results obtained with three lines of sensitive and resistant cells (K562, MCF7, and C6) demonstrate that the particles were not internalized by the cells, nor were they adsorbed onto the cell surface. In contrast, these nanospheres were very efficiently endocytosed by phagocytic cells such as macrophages. No correlation was observed between the fate of the particles, endocytosed or not, and their cytotoxic activity. It was concluded that no endocytosis step was involved in the mechanism of the multidrug resistance bypass obtained by associating a drug to polymeric particles.
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Affiliation(s)
- N Henry-Toulmé
- Centre de Recherche Paul Pascal/CNRS, Château Brivazac, Pessac, France
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Delgado AV, Salcedo J, Bolívar M, Vera P. Effects of different amino acids on the electrical characteristics of pharmaceutical polymers. J Pharm Sci 1995; 84:665-9. [PMID: 7658363 DOI: 10.1002/jps.2600840527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The effect of variations in pH and in concentration of five different amino acids (alanine, glycine, lysine, threonine, and glutamic acid) on the electrical properties of the Aquacoat polymer/solution interface was investigated by means of electrophoretic mobility measurements. The results are explained on the basis of determinations of adsorption of the amino acids on the polymer particles. The pH appears to be a determining factor in the way amino acids interact with the negatively charged polymer particles. The net, pH-dependent charge on the amino acid molecules may significantly affect their interaction with Aquacoat; thus, electrostatic effects seem to be most important in the case of lysine and glutamic acid. However, specific effects related to the structure (polarizability, size, charge) of the side group of the amino acid species appear to play an important role in the interaction and adsorption phenomena involved.
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Affiliation(s)
- A V Delgado
- Departamento de Física Aplicada, Facultad de Ciencias, Universidad de Granada, Spain
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Adsorption of hydrolysable cations at the aquacoat/water interface. An electrokinetic study. Colloids Surf A Physicochem Eng Asp 1994. [DOI: 10.1016/0927-7757(94)02856-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Manil L, Davin JC, Duchenne C, Kubiak C, Foidart J, Couvreur P, Mahieu P. Uptake of nanoparticles by rat glomerular mesangial cells in vivo and in vitro. Pharm Res 1994; 11:1160-5. [PMID: 7971718 DOI: 10.1023/a:1018993000633] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Glomerular mesangial cells play a major role in the structure of capillary loops, generation of mediators of inflammation, and uptake of macromolecules. We demonstrate here that isobutylcyanoacrylate nanoparticles loaded with actinomycin D (ADNP) concentrate in rat mesangial cells in vitro and in vivo, as compared to the free drug (AD). In normal rats injected with 20 micrograms of 3H-ADNP or 3H-AD, the uptake ratios 3H-ADNP/3H-AD measured in whole kidneys at 30 and 120 min were 2.2 +/- 1.0 and 2.3 +/- 0.9, respectively. The same ratios calculated for isolated rat glomeruli and tubules, were 4.1 +/- 0.5 and 0.8 +/- 0.2 at 30 min, and 2.6 +/- 0.5 and 0.6 +/- 0.3 at 120 min, respectively. In the glomeruli, the absolute uptake of 3H-ADNP corresponded to 7.5 (30 min) and 1.8 (120 min)% I.D./100 mg of protein. In rats with experimental glomerulonephritis, the uptakes of 3H-ADNP and 3H-AD by the glomeruli were 6.9 and 4.0 times higher than in normal rats, respectively. In vitro experiments demonstrated up to 5 times higher uptake by glomerular mesangial cells than by epithelial cells. Uptake was maximum after 60 min, higher at 37 degrees C than at 4 degrees C, dependent on the presence of fresh serum and inhibited by cytochalasin-B. Drug targeting by nanoparticles is thus possible to renal cells involved in inflammatory processes, especially mesangial cells and macrophages. Nanoparticles could also be useful for lowering drug concentration in tubular cells, to reduce any tubular toxicity.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- L Manil
- Internal Medicine Department, University of Liege, Belgium
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Abstract
Nanoparticles are colloidal polymeric particles (size < 1000 nm) to which drugs are bound by sorption, incorporation, or chemical binding. After intravenous injection they normally distribute into the organs of the reticuloendothelial system (liver, spleen, lungs, bone marrow). However, their body distribution can be altered by coating with surfactants or with physiological components such as serum complement factors. The influence of these coatings on the body distribution and possible mechanisms for the alteration of this distribution are discussed. Differently coated nanoparticles can be used for the targeting of bound drugs to tumors, to the brain, and to inflamed areas in the body.
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Affiliation(s)
- J Kreuter
- Institut für Pharmazeutische Technologie, Johann Wolfgang Geothe-Universität Frankfurt/Main, Germany
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Gallardo V, Salcedo J, Vera P, Delgado AV. Electric and adsorption properties of pharmaceutical polymers. Part I: Electrokinetics of Aquacoat. Colloid Polym Sci 1993. [DOI: 10.1007/bf00654857] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Beck P, Kreuter J, Reszka R, Fichtner I. Influence of polybutylcyanoacrylate nanoparticles and liposomes on the efficacy and toxicity of the anticancer drug mitoxantrone in murine tumour models. J Microencapsul 1993; 10:101-14. [PMID: 8445503 DOI: 10.3109/02652049309015316] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Polybutylcyanoacrylate (PBCA) nanoparticles were prepared and loaded with mitoxantrone, a highly effective anticancer drug. The proportion of mitoxantrone bound to the particles was analysed to be about 15 per cent of the initial drug concentration with the incorporation method and about 8 per cent with the adsorption method. Selected nanoparticle formulations were tested in leukaemia- or melanoma-bearing mice after intravenous injection. Efficacy and toxicity of mitoxantrone nanoparticles were compared with a drug solution and with a mitoxantrone-liposome formulation (small unilamellar vesicles with a negative surface charge). Furthermore, influence of an additional coating surfactant, poloxamine 1508, which has been shown to change body distribution of other polymeric nanoparticles, was investigated. It was shown that PBCA nanoparticles and liposomes influenced the efficacy of mitoxantrone in cancer therapy differently: liposomes prolonged survival time in P388 leukaemia, whereas nanoparticles led to a significant tumour volume reduction at the B16 melanoma. Neither nanoparticles nor liposomes were able to reduce the toxic side-effects caused by mitoxantrone, namely leucocytopenia. A slight additional influence of the coating surfactant was observed with only one preparation.
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Affiliation(s)
- P Beck
- Institut für Pharmazeutische Technologie der J. W. Goethe-Universität, Frankfurt, Germany
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Kreuter J. The influence of coatings with surfactants on the body distribution of nanoparticles after intravenous injection to rats. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0267-6605(93)90099-s] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Vyas SP, Ramchandraiah S, Jain CP, Jain SK. Polymeric pseudolatices bearing pilocarpine for controlled ocular delivery. J Microencapsul 1992; 9:347-55. [PMID: 1403485 DOI: 10.3109/02652049209021249] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The pseudolatex-based ocular formulations of pilocarpine were prepared using different combinations of Eudragit RS 100 and polyvinyl pyrrolidone for prolonged and controlled release of the drug. The designed system was essentially based on polymeric pseudolatex dispersion. The process variables that effect the latex particle size, drug loading and release profiles of drug were studied. Preparations were evaluated for their in vitro performance with regard to release profile and diffusion co-efficient. The designed system exhibited linear relationship between cumulative drug release (Q) and square root of time (t0.5). The products selected on the basis of in vitro characterization were studied for in vivo performance evaluation. It was observed that the preparations exhibited in vivo prolonged therapeutic efficacy. Thus polymer based pseudolatices hold promise for controlled pilocarpine ocular delivery.
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Affiliation(s)
- S P Vyas
- Pharmaceutics Laboratories, Department of Pharmaceutical Sciences, Sagar, India
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Blagoeva PM, Balansky RM, Mircheva TJ, Simeonova MI. Diminished genotoxicity of mitomycin C and farmorubicin included in polybutylcyanoacrylate nanoparticles. Mutat Res 1992; 268:77-82. [PMID: 1378189 DOI: 10.1016/0027-5107(92)90085-g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The genotoxic effects of mitomycin C (MMC) and farmorubicin (FR) in a free form and included in polybutylcyanoacrylate nanoparticles (PBCN) were studied employing the Salmonella/microsome mutagenicity assay and the micronucleus test in mouse bone marrow as well as in mouse fetal liver. The data obtained clearly indicated that MMC (0.25-2.00 micrograms/plate) was a strong mutagen in S. typhimurium TA102, while the same concentrations of this compound in PBCN were ineffective in inducing his+ revertant mutations in bacterial cells. A similar total suppression of mutagenic activity of FR (1.0-20.0 micrograms/plate) was registered in S. typhimurium TA98 when the drug was included in PBCN. Furthermore, the incorporation of MMC (2.0 or 4.0 mg/kg, i.p.) into PBCN strongly diminished or even abolished its clastogenic activity in the bone marrow of virgin and pregnant mice as well as in mouse fetal liver, respectively. In addition, a lack of genotoxic effect of PBCN only was also established. The toxic activity of MMC in mouse bone marrow was significantly reduced or completely abolished after its inclusion in PBCN. A conclusion might be drawn that the genotoxic activity of some antitumor drugs might be markedly diminished or even abolished after their incorporation in PBCN.
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Affiliation(s)
- P M Blagoeva
- Laboratory of Chemical Mutagenesis and Carcinogenesis, National Centre of Oncology, Sofia, Bulgaria
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Couvreur P, Vauthier C. Polyalkylcyanoacrylate nanoparticles as drug carrier: present state and perspectives. J Control Release 1991. [DOI: 10.1016/0168-3659(91)90058-l] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Adsorption of hematoporphyrin onto polyalkylcyanoacrylate nanoparticles: carrier capacity and drug release. Int J Pharm 1991. [DOI: 10.1016/0378-5173(91)90172-k] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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