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| Content Provider | PubMed Central |
|---|---|
| Author | Liu, Jiao Liang, Ying Liu, Ting Li, Dengke Yang, Xingsheng |
| Abstract | The study aimed to confirm that anti-epidermal growth factor receptor (EGFR) monoclonal antibody-conjugated hollow gold nanospheres (anti-EGFR/HGNs) can be selectively uptaken by cervical cancer cells and induce its apoptosis when combined with radiotherapy, as a result enhancing radiosensitivity of cervical cancer cells. HGNs with a mean diameter of 54.6 ± 7.11 nm and wall thickness of 5.01 ± 2.23 nm were viewed by transmission electron microscopy (TEM). Cell uptake was assayed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The cytotoxicity on HeLa cells, which were used in our experiment, was assessed by CCK-8 assay. Cell cycle and apoptosis were examined by an Annexin V-FITC/propidium iodide (PI) kit with flow cytometry (FCM). The expression of several critical apoptosis-related proteins, including Bcl-2, Bax, Bad, and active caspase 3, was tested by western blot analysis. Cells treated by anti-EGFR/HGNs showed an obvious increase in nanoparticle uptake compared to naked HGNs. Anti-EGFR/HGNs combined with radiation resulted in a significant growth inhibition, compared with radiation combined with naked HGNs. Anti-EGFR/HGNs remarkably increased the ratio of HeLa cells in the G2/M phase and induced more apoptosis by an obvious deregulation of Bcl-2 and upregulation of Bax, Bad, and caspase 3 when combined with radiation. Therefore, anti-EGFR/HGNs can increase the targeted uptake of HGNs by HeLa cells and enhance radiocytotoxic targeting of cervical cancer at megavoltage radiation energies. |
| Related Links | http://dx.doi.org/10.1186/s11671-015-0923-2 |
| Starting Page | 218 |
| File Format | |
| ISSN | 1556276X |
| e-ISSN | 1556276X |
| Journal | Nanoscale Research Letters |
| Volume Number | 10 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2015-12-01 |
| Access Restriction | Open |
| Rights Holder | Springer US |
| Subject Keyword | Materials Science(all) Condensed Matter Physics Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology Condensed Matter Physics |
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