scholarly journals Characterization of cellular uptake and toxicity of aminosilane-coated iron oxide nanoparticles with different charges in central nervous system-relevant cell culture models

Author(s):  
Zhizhi Sun ◽  
Yathindranath ◽  
Matthew Worden ◽  
Thliveris ◽  
Chu ◽  
...  
2018 ◽  
Vol Volume 14 ◽  
pp. 161-180 ◽  
Author(s):  
Stephan Lugert ◽  
Harald Unterweger ◽  
Marina Mühlberger ◽  
Christina Janko ◽  
Sebastian Draack ◽  
...  

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 465 ◽  
Author(s):  
Shoeb Ansari ◽  
Eleonora Ficiarà ◽  
Federico Ruffinatti ◽  
Ilaria Stura ◽  
Monica Argenziano ◽  
...  

Magnetic Nanoparticles (MNPs) are of great interest in biomedicine, due to their wide range of applications. During recent years, one of the most challenging goals is the development of new strategies to finely tune the unique properties of MNPs, in order to improve their effectiveness in the biomedical field. This review provides an up-to-date overview of the methods of synthesis and functionalization of MNPs focusing on Iron Oxide Nanoparticles (IONPs). Firstly, synthesis strategies for fabricating IONPs of different composition, sizes, shapes, and structures are outlined. We describe the close link between physicochemical properties and magnetic characterization, essential to developing innovative and powerful magnetic-driven nanocarriers. In conclusion, we provide a complete background of IONPs functionalization, safety, and applications for the treatment of Central Nervous System disorders.


2009 ◽  
Vol 30 (1) ◽  
pp. 15-35 ◽  
Author(s):  
Jason S Weinstein ◽  
Csanad G Varallyay ◽  
Edit Dosa ◽  
Seymur Gahramanov ◽  
Bronwyn Hamilton ◽  
...  

Superparamagnetic iron oxide nanoparticles have diverse diagnostic and potential therapeutic applications in the central nervous system (CNS). They are useful as magnetic resonance imaging (MRI) contrast agents to evaluate: areas of blood–brain barrier (BBB) dysfunction related to tumors and other neuroinflammatory pathologies, the cerebrovasculature using perfusion-weighted MRI sequences, and in vivo cellular tracking in CNS disease or injury. Novel, targeted, nanoparticle synthesis strategies will allow for a rapidly expanding range of applications in patients with brain tumors, cerebral ischemia or stroke, carotid atherosclerosis, multiple sclerosis, traumatic brain injury, and epilepsy. These strategies may ultimately improve disease detection, therapeutic monitoring, and treatment efficacy especially in the context of antiangiogenic chemotherapy and antiinflammatory medications. The purpose of this review is to outline the current status of superparamagnetic iron oxide nanoparticles in the context of biomedical nanotechnology as they apply to diagnostic MRI and potential therapeutic applications in neurooncology and other CNS inflammatory conditions.


2005 ◽  
Vol 2 (1) ◽  
pp. 73-89 ◽  
Author(s):  
Marina Aksenova ◽  
Michael Aksenov ◽  
Charles Mactutus ◽  
Rosemarie Booze

2013 ◽  
Vol 80 (1-2) ◽  
pp. 134-141 ◽  
Author(s):  
Tingzhong Wang ◽  
Forrest M. Kievit ◽  
Omid Veiseh ◽  
Hamed Arami ◽  
Zachary R. Stephen ◽  
...  

2018 ◽  
Vol 6 (10) ◽  
Author(s):  
Hosam Zaghloul ◽  
Doaa A. Shahin ◽  
Ibrahim El- Dosoky ◽  
Mahmoud E. El-awady ◽  
Fardous F. El-Senduny ◽  
...  

Antisense oligonucleotides (ASO) represent an attractive trend as specific targeting molecules but sustain poor cellular uptake meanwhile superparamagnetic iron oxide nanoparticles (SPIONs) offer stability of ASO and improved cellular uptake. In the present work we aimed to functionalize SPIONs with ASO targeting the mRNA of Cyclin B1 which represents a potential cancer target and to explore its anticancer activity. For that purpose, four different SPIONs-ASO conjugates, S-M (1–4), were designated depending on the sequence of ASO and constructed by crosslinking carboxylated SPIONs to amino labeled ASO. The impact of S-M (1–4) on the level of Cyclin B1, cell cycle, ROS and viability of the cells were assessed by flowcytometry. The results showed that S-M3 and S-M4 reduced the level of Cyclin B1 by 35 and 36%, respectively. As a consequence to downregulation of Cyclin B1, MCF7 cells were shown to be arrested at G2/M phase (60.7%). S-M (1–4) led to the induction of ROS formation in comparison to the untreated control cells. Furthermore, S-M (1–4) resulted in an increase in dead cells compared to the untreated cells and SPIONs-treated cells. In conclusion, targeting Cyclin B1 with ASO-coated SPIONs may represent a specific biocompatible anticancer strategy.


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