Document Detail

Aptamer-conjugated gold nanorod for photothermal ablation of epidermal growth factor receptor-overexpressed epithelial cancer.
MedLine Citation:
PMID:  24297058     Owner:  NLM     Status:  In-Data-Review    
ABSTRACT. Biomarker-specific photothermal nanoparticles that can efficiently sense markers that are overexpressed in distinguished adenocarcinomas have attracted much interest in an aspect of efficacy increase of cancer treatment. We demonstrated a promising prospect of a smart photothermal therapy agent employing anti-epidermal growth factor receptor aptamer (AptEGFR)-conjugated polyethylene glycol (PEG) layted gold nanorods (AptEGFR-PGNRs). The cetyltrimethylammonium bromide bilayer on GNRs was replaced with heterobifunctional PEG (COOH-PEG-SH) not only to serve as a biocompatible stabilizer and but also to conjugate AptEGFR. Subsequently, to direct photothermal therapy agent toward epithelial cancer cells, the carboxylated PEGylated GNRs (PGNRs) were further functionalized with AptEGFR using carbodiimide chemistry. Then, to assess the potential as biomarker-specific photothermal therapy agent of synthesized AptEGFR-PGNRs, the optical properties, biocompatibility, colloidal stability, binding affinity, and epicellial cancer cell killing efficacy in vitro/in vivo under near-infrared laser irradiation were investigated. As a result, AptEGFR-PGNRs exhibit excellent tumor targeting ability and feasibility of effective photothermal ablation cancer therapy.
Jihye Choi; Yeonji Park; Eun Bi Choi; Hyun-Ouk Kim; Dong Joo Kim; Yoochan Hong; Sung-Ho Ryu; Jung Hwan Lee; Jin-Suck Suh; Jaemoon Yang; Yong-Min Huh; Seungjoo Haam
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of biomedical optics     Volume:  19     ISSN:  1560-2281     ISO Abbreviation:  J Biomed Opt     Publication Date:  2014 May 
Date Detail:
Created Date:  2013-12-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9605853     Medline TA:  J Biomed Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  51203     Citation Subset:  IM    
Yonsei University, Department of Chemical and Biomolecular Engineering, Seoul 120-749, Republic of Korea.
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