Volume 5, Issue 2 p. 235-243
Full Paper

Single Chain Epidermal Growth Factor Receptor Antibody Conjugated Nanoparticles for in vivo Tumor Targeting and Imaging

Lily Yang

Corresponding Author

Lily Yang

Department of Surgery, Winship Cancer Institute Emory University School of Medicine 1365 C Clifton Road NE Atlanta, GA 30322 (USA)

Lily Yang, Department of Surgery, Winship Cancer Institute Emory University School of Medicine 1365 C Clifton Road NE Atlanta, GA 30322 (USA).

Shuming Nie, Department of Biomedical Engineering Emory University School of Medicine 101 Woodruff Circle, Suite 2007B, Atlanta, GA 30322 (USA).

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Hui Mao

Hui Mao

Department of Radiology Emory University School of Medicine EUH AG11, 1364 Clifton Road, Atlanta, GA 30322 (USA)

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Y. Andrew Wang

Y. Andrew Wang

Ocean Nanotech, LLC Fayetteville, AR 72701 (USA)

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Zehong Cao

Zehong Cao

Department of Surgery, Winship Cancer Institute Emory University School of Medicine 1365 C Clifton Road NE Atlanta, GA 30322 (USA)

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Xianghong Peng

Xianghong Peng

Department of Surgery, Winship Cancer Institute Emory University School of Medicine 1365 C Clifton Road NE Atlanta, GA 30322 (USA)

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Xiaoxia Wang

Xiaoxia Wang

Department of Radiology Emory University School of Medicine EUH AG11, 1364 Clifton Road, Atlanta, GA 30322 (USA)

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Hongwei Duan

Hongwei Duan

Department of Biomedical Engineering Emory University School of Medicine 101 Woodruff Circle, Suite 2007B, Atlanta, GA 30322 (USA)

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Chunchun Ni

Chunchun Ni

Department of Radiology Emory University School of Medicine EUH AG11, 1364 Clifton Road, Atlanta, GA 30322 (USA)

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Qingan Yuan

Qingan Yuan

Fox Chase Cancer Center Philadelphia, PA 19111 (USA)

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Gregory Adams

Gregory Adams

Fox Chase Cancer Center Philadelphia, PA 19111 (USA)

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Mark Q. Smith

Mark Q. Smith

Department of Surgery, Winship Cancer Institute Emory University School of Medicine 1365 C Clifton Road NE Atlanta, GA 30322 (USA)

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William C. Wood

William C. Wood

Department of Surgery, Winship Cancer Institute Emory University School of Medicine 1365 C Clifton Road NE Atlanta, GA 30322 (USA)

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Xiaohu Gao

Xiaohu Gao

Department of Bioengineering University of Washington Seattle, WA 98195 (USA)

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Shuming Nie

Corresponding Author

Shuming Nie

Department of Biomedical Engineering Emory University School of Medicine 101 Woodruff Circle, Suite 2007B, Atlanta, GA 30322 (USA)

Lily Yang, Department of Surgery, Winship Cancer Institute Emory University School of Medicine 1365 C Clifton Road NE Atlanta, GA 30322 (USA).

Shuming Nie, Department of Biomedical Engineering Emory University School of Medicine 101 Woodruff Circle, Suite 2007B, Atlanta, GA 30322 (USA).

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First published: 19 January 2009
Citations: 275

Abstract

Epidermal growth factor receptor (EGFR) targeted nanoparticle are developed by conjugating a single-chain anti-EGFR antibody (ScFvEGFR) to surface functionalized quantum dots (QDs) or magnetic iron oxide (IO) nanoparticles. The results show that ScFvEGFR can be successfully conjugated to the nanoparticles, resulting in compact ScFvEGFR nanoparticles that specifically bind to and are internalized by EGFR-expressing cancer cells, thereby producing a fluorescent signal or magnetic resonance imaging (MRI) contrast. In vivo tumor targeting and uptake of the nanoparticles in human cancer cells is demonstrated after systemic delivery of ScFvEGFR-QDs or ScFvEGFR-IO nanoparticles into an orthotopic pancreatic cancer model. Therefore, ScFvEGFR nanoparticles have potential to be used as a molecular-targeted in vivo tumor imaging agent. Efficient internalization of ScFvEGFR nanoparticles into tumor cells after systemic delivery suggests that the EGFR-targeted nanoparticles can also be used for the targeted delivery of therapeutic agents.

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