Back to Search
Start Over
Silicon particles as trojan horses for potential cancer therapy.
- Source :
-
Journal of nanobiotechnology [J Nanobiotechnology] 2014 Sep 16; Vol. 12, pp. 35. Date of Electronic Publication: 2014 Sep 16. - Publication Year :
- 2014
-
Abstract
- Background: Porous silicon particles (PSiPs) have been used extensively as drug delivery systems, loaded with chemical species for disease treatment. It is well known from silicon producers that silicon is characterized by a low reduction potential, which in the case of PSiPs promotes explosive oxidation reactions with energy yields exceeding that of trinitrotoluene (TNT). The functionalization of the silica layer with sugars prevents its solubilization, while further functionalization with an appropriate antibody enables increased bioaccumulation inside selected cells.<br />Results: We present here an immunotherapy approach for potential cancer treatment. Our platform comprises the use of engineered silicon particles conjugated with a selective antibody. The conceptual advantage of our system is that after reaction, the particles are degraded into soluble and excretable biocomponents.<br />Conclusions: In our study, we demonstrate in particular, specific targeting and destruction of cancer cells in vitro. The fact that the LD50 value of PSiPs-HER-2 for tumor cells was 15-fold lower than the LD50 value for control cells demonstrates very high in vitro specificity. This is the first important step on a long road towards the design and development of novel chemotherapeutic agents against cancer in general, and breast cancer in particular.
- Subjects :
- Antineoplastic Agents chemistry
Antineoplastic Agents pharmacology
Cell Line, Tumor drug effects
Drug Screening Assays, Antitumor methods
Humans
Immunotherapy methods
Lethal Dose 50
Nanoparticles chemistry
Receptor, ErbB-2 chemistry
Receptor, ErbB-2 immunology
Receptor, ErbB-2 metabolism
Silicon administration & dosage
Solubility
Antineoplastic Agents administration & dosage
Nanoparticles administration & dosage
Silicon chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1477-3155
- Volume :
- 12
- Database :
- MEDLINE
- Journal :
- Journal of nanobiotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 25223512
- Full Text :
- https://doi.org/10.1186/s12951-014-0035-7