A new nanoconstruct for epidermal growth factor receptor-targeted photo-immunotherapy of ovarian cancer.

A new nanoconstruct for epidermal growth factor receptor-targeted photo-immunotherapy of ovarian cancer.
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DOI:
10.1016/j.nano.2013.02.005
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发表时间:
2013-10
影响因子:
5.4
通讯作者:
Hasan, Tayyaba
Hasan, Tayyaba
中科院分区:
医学2区
文献类型:
--
作者:
Mir, Youssef;Elrington, Stefan A.;Hasan, Tayyaba

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Targeted photodynamic therapy (TPDT) involves the administration of a photosensitizer (PS) conjugated with a targeting moiety followed by light activation. The systemic toxicity associated with conventional therapy may thus be significantly reduced in TPDT due to the dual selectivity provided by the spatial localization of the illumination as well as the target-localizing ability of the conjugate. Herein, a Photo-Immuno-Conjugate-Associating-Liposome (PICAL) for TPDT has been developed in which the FDA approved benzoporphyrin derivative monoacid A (BPD) and the Cetuximab antibody for epidermal growth factor receptor (EGFR) were associated into a stable Preformed Plain Liposome (PPL) by passive physical adsorption. Results have shown that the BPD molecules adsorbed into PICAL have stable optical behavior and a higher fluorescence quantum yield than free-BPD. The Cetuximab adsorbed into PPL selectively binds to cells that overexpress EGFR. The inhibition of EGFR signaling by PICAL has enhanced PDT-mediated ovarian cancer cell death.
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