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Hall AM, Hemmer R, Spaulding R, Wetzel HN, Curcio J, Sabel BA, Henrich-Noack P, Pixley S, Hopkins T, Boyce RL, Schultheis PJ, Haik KL. Cytotoxicity and apoptotic gene expression in an in vitro model of the blood-brain barrier following exposure to poly(butylcyanoacrylate) nanoparticles. J Drug Target 2015; 24:635-44. [PMID: 26707984 DOI: 10.3109/1061186x.2015.1132222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background Poly(butylcyanoacrylate) (PBCA) nanoparticles (NPs) loaded with doxorubicin (DOX) and coated with polysorbate 80 (PS80) have shown efficacy in the treatment of rat glioblastoma. However, cytotoxicity of this treatment remains unclear. Purpose The purpose of this study was to investigate cytotoxicity and apoptotic gene expression using a proven in vitro co-culture model of the blood-brain barrier. Methods The co-cultures were exposed to uncoated PBCA NPs, PBCA-PS80 NPs or PBCA-PS80-DOX NPs at varying concentrations and evaluated using a resazurin-based cytotoxicity assay and an 84-gene apoptosis RT-PCR array. Results The cytotoxicity assays showed PBCA-PS80-DOX NPs exhibited a decrease in metabolic function at lower concentrations than uncoated PBCA NPs and PBCA-PS80 NPs. The apoptosis arrays showed differential expression of 18 genes in PBCA-PS80-DOX treated cells compared to the untreated control. Discussion As expected, the cytotoxicity assays demonstrated enhanced dose-dependent toxicity in the DOX loaded NPs. The differentially expressed apoptotic genes participate in both the tumor necrosis factor receptor-1 and mitochondria-associated apoptotic pathways implicated in current DOX chemotherapeutic toxicity. Conclusion The following data suggest that the cytotoxic effect may be attributed to DOX and not the NPs themselves, further supporting the use of PBCA-PS80 NPs as an effective drug delivery vehicle for treating central nervous system conditions.
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Affiliation(s)
- Andrew M Hall
- a Department of Biological Sciences , Northern Kentucky University , Highland Heights , KY , USA ;,b Department of Chemistry , Northern Kentucky University , Highland Heights , KY , USA
| | - Ruth Hemmer
- a Department of Biological Sciences , Northern Kentucky University , Highland Heights , KY , USA
| | - Robert Spaulding
- a Department of Biological Sciences , Northern Kentucky University , Highland Heights , KY , USA
| | - Hanna N Wetzel
- a Department of Biological Sciences , Northern Kentucky University , Highland Heights , KY , USA
| | - Joseph Curcio
- a Department of Biological Sciences , Northern Kentucky University , Highland Heights , KY , USA
| | - Bernhard A Sabel
- c Institute of Medical Psychology, Otto-von-Guericke University , Magdeburg , Germany
| | - Petra Henrich-Noack
- c Institute of Medical Psychology, Otto-von-Guericke University , Magdeburg , Germany
| | - Sarah Pixley
- d Molecular and Cellular Physiology Department , University of Cincinnati Medical Center , Cincinnati , OH , USA
| | - Tracy Hopkins
- d Molecular and Cellular Physiology Department , University of Cincinnati Medical Center , Cincinnati , OH , USA
| | - Richard L Boyce
- a Department of Biological Sciences , Northern Kentucky University , Highland Heights , KY , USA
| | - Patrick J Schultheis
- a Department of Biological Sciences , Northern Kentucky University , Highland Heights , KY , USA
| | - Kristi L Haik
- a Department of Biological Sciences , Northern Kentucky University , Highland Heights , KY , USA
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Roney C, Kulkarni P, Arora V, Bennett M, Antich P, Bonte F, Wu A, Mallikarjuna NN, Manohar S, Sairam M, Aminabhavi TM. Feature Article: Polymeric Nanoparticulate Drug Delivery Through The Blood Brain Barrier. ACTA ACUST UNITED AC 2007. [DOI: 10.1080/00323910500290374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Celeste Roney
- a Department of Radiology , Division of Advanced Radiological Sciences
| | - Padmakar Kulkarni
- a Department of Radiology , Division of Advanced Radiological Sciences
| | - Veera Arora
- a Department of Radiology , Division of Advanced Radiological Sciences
| | - Michael Bennett
- b Department of Pathology , The University of Texas, Southwestern Medical Center at Dallas , Dallas , TX , 75390 , USA
| | - Peter Antich
- a Department of Radiology , Division of Advanced Radiological Sciences
| | - Frederick Bonte
- a Department of Radiology , Division of Advanced Radiological Sciences
| | - Aimei Wu
- c Alan G. MacDiarmid Center for Innovation, Department of Chemistry , The University of Texas at Dallas , Richardson , TX , 75083 , USA
| | - N. N. Mallikarjuna
- c Alan G. MacDiarmid Center for Innovation, Department of Chemistry , The University of Texas at Dallas , Richardson , TX , 75083 , USA
| | - Sanjeev Manohar
- c Alan G. MacDiarmid Center for Innovation, Department of Chemistry , The University of Texas at Dallas , Richardson , TX , 75083 , USA
| | - Malladi Sairam
- d Drug Delivery Division, Center of Excellence in Polymer Science , The Karnatak University , Dharwad , 580003 , India
| | - Tejraj M. Aminabhavi
- d Drug Delivery Division, Center of Excellence in Polymer Science , The Karnatak University , Dharwad , 580003 , India
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Roney C, Kulkarni P, Arora V, Antich P, Bonte F, Wu A, Mallikarjuana NN, Manohar S, Liang HF, Kulkarni AR, Sung HW, Sairam M, Aminabhavi TM. Targeted nanoparticles for drug delivery through the blood–brain barrier for Alzheimer's disease. J Control Release 2005; 108:193-214. [PMID: 16246446 DOI: 10.1016/j.jconrel.2005.07.024] [Citation(s) in RCA: 268] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2005] [Accepted: 07/24/2005] [Indexed: 11/16/2022]
Abstract
Alzheimer's disease (AD) is the most common cause of dementia among the elderly, affecting 5% of Americans over age 65, and 20% over age 80. An excess of senile plaques (beta-amyloid protein) and neurofibrillary tangles (tau protein), ventricular enlargement, and cortical atrophy characterizes it. Unfortunately, targeted drug delivery to the central nervous system (CNS), for the therapeutic advancement of neurodegenerative disorders such as Alzheimer's, is complicated by restrictive mechanisms imposed at the blood-brain barrier (BBB). Opsonization by plasma proteins in the systemic circulation is an additional impediment to cerebral drug delivery. This review gives an account of the BBB and discusses the literature on biodegradable polymeric nanoparticles (NPs) with appropriate surface modifications that can deliver drugs of interest beyond the BBB for diagnostic and therapeutic applications in neurological disorders, such as AD. The physicochemical properties of the NPs at different surfactant concentrations, stabilizers, and amyloid-affinity agents could influence the transport mechanism.
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Affiliation(s)
- Celeste Roney
- Department of Radiology, Division of Advanced Radiological Sciences, The University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA
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Das D, Lin S. Double-Coated Poly (Butylcynanoacrylate) Nanoparticulate Delivery Systems for Brain Targeting of Dalargin Via Oral Administration. J Pharm Sci 2005; 94:1343-53. [PMID: 15858853 DOI: 10.1002/jps.20357] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The aim of this study is to evaluate oral administration of poly (butylcyanoacrylate) nanoparticulate delivery systems (PBCA-NDSs), double-coated with Tween 80 and poly (ethylene) glycol (PEG) 20000 for brain delivery of hexapeptide dalargin, an anti-nociceptive peptide that does not cross blood-brain barrier (BBB) by itself. Studies have proven the brain uptake of Tween 80 overcoated nanoparticles after intravenous administration, but studies for brain delivery of nanoparticles after oral administration had been limited due to reduced bioavailability of nanoparticles and extensive degradation of the peptide and/or nanoparticles by gastrointestinal enzymes. To address this problem, dalargin-loaded PBCA-NDS were successively double-coated with Tween 80 and PEG 20000 in varied concentrations of up to 2% each. Measurement of in vivo central anti-nociceptive effect of dalargin along with a dose response curve was obtained by the tail flick test following the oral administration of PBCA-NDSs to mice. Results from the tail flick test indicated that significant dalargin-induced analgesia was observed from PBCA-NDSs with double-coating of Tween and PEG in comparison with single-coating of either Tween or PEG. Hence, it could be concluded that surface coated PBCA-NDS can be used successfully for brain targeting of dalargin or other peptides administered orally. However, further studies are required to elucidate the exact transport mechanism of PBCA-NDSs from gastrointestinal tract to brain.
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Affiliation(s)
- Debanjan Das
- College of Pharmacy and Allied Health Professions, St. John's University, Jamaica, NY 11439, USA
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Kristofiková Z, Cermák M, Benesová O, Klaschka J, Zach P. Exposure of Postnatal Rats to a Static Magnetic Field of 0.14 T Influences Functional Laterality of the Hippocampal High-Affinity Choline Uptake System in Adulthood; In vitro Test with Magnetic Nanoparticles. Neurochem Res 2005; 30:253-62. [PMID: 15895829 DOI: 10.1007/s11064-005-2448-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Our previous experiments indicated an age- and sex-dependent functional lateralization of a high-affinity choline uptake system in hippocampi of Wistar rats. The system is connected with acetylcholine synthesis and also plays a role in spatial navigation. The current study demonstrates that a single in vivo exposure of 7- or 14-day-old males to a static magnetic field of 0.14 T for 60-120 min evokes asymmetric alterations in the activity of carriers in adulthood. Namely, the negative field (antiparallel orientation with a vertical component of the geomagnetic field) mediated a more marked decrease in the right hippocampus. The positive field (parallel orientation) was ineffective. Moreover, differences between the carriers from the right and the left hippocampi were observed on synaptosomes pretreated with superparamagnetic nanoparticles and exposed for 30 min in vitro. The positive field enhanced more markedly the activity of carriers from the right hippocampus, the negative that from the left hippocampus, on the contrary. Our results demonstrate functionally teratogenic risks of the alterations in the orientation of the strong static magnetic field for postnatal brain development and suggest functional specialization of both hippocampi in rats. Choline carriers could be involved as secondary receptors in magnetoreception through direct effects of geomagnetic field on intracellular magnetite crystals and nanoparticles applied in vivo should be a useful tool to evaluate magnetoreception in future research.
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Affiliation(s)
- Z Kristofiková
- Prague Psychiatric Centre, Ustavní 91, 181 03, Prague 8, Bohnice, Czech Republic.
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