Magnetic response of mitochondria-targeted cancer cells with bacterial magnetic nanoparticles

2012 ◽  
Vol 48 (60) ◽  
pp. 7474 ◽  
Author(s):  
Jungin Choi ◽  
Jaeha Shin ◽  
Junghoon Lee ◽  
Misun Cha
2018 ◽  
Vol 18 (8) ◽  
pp. 1138-1147 ◽  
Author(s):  
Esra Metin ◽  
Pelin Mutlu ◽  
Ufuk Gündüz

Background: Although conventional chemotherapy is the most common method for cancer treatment, it has several side effects such as neuropathy, alopecia and cardiotoxicity. Since the drugs are given to body systemically, normal cells are also affected, just like cancer cells. However, in recent years, targeted drug delivery has been developed to overcome these drawbacks. Objective: The aim of this study was targeted co-delivery of doxorubicin (Dox) which is an anticancer agent and D-α-Tocopherol polyethylene glycol 1000 succinate (vitamin E TPGS or simply TPGS) to breast cancer cells. For this purpose, Magnetic Nanoparticles (MNPs) were synthesized and coated with Oleic Acid (OA). Coated nanoparticles were encapsulated in Poly Lactic-co-Glycolic Acid (PLGA) and TPGS polymers and loaded with Dox. The Nanoparticles (NPs) were characterized by Fourier Transform Infrared (FTIR) spectroscopy, zetapotential analysis, Dynamic Light Scattering (DLS) analysis, Thermal Gravimetric Analysis (TGA) and Scanning Electron Microscope (SEM) analysis. Results: The results showed that NPs were spherical, superparamagnetic and in the desired range for use in drug targeting. The targetability of NPs was confirmed. Moreover, TPGS and Dox loading was shown by TGA and FTIR analyses. NPs were internalized by cells and the cytotoxic effect of drug loaded NPs on sensitive (MCF-7) and drug-resistant (MCF-7/Dox) cells were examined. It was seen that the presence of TPGS increased cytotoxicity significantly. TPGS also enhanced drug loading efficiency, release rate, cellular internalization. In MCF- 7/Dox cells, the drug resistance seems to be decreased when Dox is loaded onto TPGS containing NPs. Conclusion: This magnetic PLGA nanoparticle system is important for new generation targeted chemotherapy and could be used for breast cancer treatment after in vivo tests.


Author(s):  
Milad Mehdipour ◽  
Lucy Gloag ◽  
Danielle T. Bennett ◽  
Sharmin Hoque ◽  
Raheleh Pardehkhorram ◽  
...  

The versatile qualities of gold coated magnetic nanoparticles for both optical and electrochemical detection, as well as the separation of analytes, make them an excellent choice for ultrasensitive biosensing applications.


2017 ◽  
Vol 64 (5) ◽  
pp. 972-979 ◽  
Author(s):  
Bradley W. Ficko ◽  
Christian NDong ◽  
Paolo Giacometti ◽  
Karl E. Griswold ◽  
Solomon G. Diamond

Nanoscale ◽  
2015 ◽  
Vol 7 (39) ◽  
pp. 16470-16480 ◽  
Author(s):  
Hyun-Chul Kim ◽  
Eunjoo Kim ◽  
Sang Won Jeong ◽  
Tae-Lin Ha ◽  
Sang-Im Park ◽  
...  

The cytotoxicity of magnetic nanoparticles-conjugated polymeric micelles encapsulated with an anticancer drug on cancer cells was enhanced by the synergistic effect of heat and the rapid release of the drug under an alternating magnetic field.


ACS Nano ◽  
2012 ◽  
Vol 6 (5) ◽  
pp. 3974-3981 ◽  
Author(s):  
Suwussa Bamrungsap ◽  
Tao Chen ◽  
Mohammed Ibrahim Shukoor ◽  
Zhuo Chen ◽  
Kwame Sefah ◽  
...  

RSC Advances ◽  
2020 ◽  
Vol 10 (51) ◽  
pp. 30907-30916
Author(s):  
A. V. Pashchenko ◽  
N. A. Liedienov ◽  
I. V. Fesych ◽  
Quanjun Li ◽  
V. G. Pitsyuga ◽  
...  

Local heating of cancer cells up to 42 °C for a short time (∼1.5 min) by smart magnetic nanoparticles.


2017 ◽  
Vol 45 (8) ◽  
pp. 1649-1656 ◽  
Author(s):  
Soumaye Amirsaadat ◽  
Younes Pilehvar-Soltanahmadi ◽  
Faraz Zarghami ◽  
Shahriar Alipour ◽  
Zohreh Ebrahimnezhad ◽  
...  

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