Volume 127, Issue 41 pp. 12188-12192
Zuschrift

Enzymatic Prenylation and Oxime Ligation for the Synthesis of Stable and Homogeneous Protein–Drug Conjugates for Targeted Therapy

Dr. Joong-jae Lee

Dr. Joong-jae Lee

Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Korea)

These authors contributed equally to this work.

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Hyo-Jung Choi

Hyo-Jung Choi

New Drug Research Center, LegoChem Biosciences, Inc., Daejeon (Korea)

These authors contributed equally to this work.

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Misun Yun

Misun Yun

Department of Nuclear Medicine, Chonnam National University Medical School, Gwangju (Korea)

These authors contributed equally to this work.

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YingJin Kang

YingJin Kang

Department of Systems Biology, Yonsei University, Seoul (Korea)

These authors contributed equally to this work.

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Ji-Eun Jung

Ji-Eun Jung

New Drug Research Center, LegoChem Biosciences, Inc., Daejeon (Korea)

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Dr. Yiseul Ryu

Dr. Yiseul Ryu

Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Korea)

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Tae Yoon Kim

Tae Yoon Kim

Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Korea)

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Young-je Cha

Young-je Cha

Department of Systems Biology, Yonsei University, Seoul (Korea)

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Prof. Hyun-Soo Cho

Corresponding Author

Prof. Hyun-Soo Cho

Department of Systems Biology, Yonsei University, Seoul (Korea)

Hyun-Soo Cho, Department of Systems Biology, Yonsei University, Seoul (Korea)

Jung-Joon Min, Department of Nuclear Medicine, Chonnam National University Medical School, Gwangju (Korea)

Chul-Woong Chung, New Drug Research Center, LegoChem Biosciences, Inc., Daejeon (Korea)

Hak-Sung Kim, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Korea)

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Prof. Jung-Joon Min

Corresponding Author

Prof. Jung-Joon Min

Department of Nuclear Medicine, Chonnam National University Medical School, Gwangju (Korea)

Hyun-Soo Cho, Department of Systems Biology, Yonsei University, Seoul (Korea)

Jung-Joon Min, Department of Nuclear Medicine, Chonnam National University Medical School, Gwangju (Korea)

Chul-Woong Chung, New Drug Research Center, LegoChem Biosciences, Inc., Daejeon (Korea)

Hak-Sung Kim, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Korea)

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Dr. Chul-Woong Chung

Corresponding Author

Dr. Chul-Woong Chung

New Drug Research Center, LegoChem Biosciences, Inc., Daejeon (Korea)

Hyun-Soo Cho, Department of Systems Biology, Yonsei University, Seoul (Korea)

Jung-Joon Min, Department of Nuclear Medicine, Chonnam National University Medical School, Gwangju (Korea)

Chul-Woong Chung, New Drug Research Center, LegoChem Biosciences, Inc., Daejeon (Korea)

Hak-Sung Kim, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Korea)

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Prof. Hak-Sung Kim

Corresponding Author

Prof. Hak-Sung Kim

Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Korea)

Hyun-Soo Cho, Department of Systems Biology, Yonsei University, Seoul (Korea)

Jung-Joon Min, Department of Nuclear Medicine, Chonnam National University Medical School, Gwangju (Korea)

Chul-Woong Chung, New Drug Research Center, LegoChem Biosciences, Inc., Daejeon (Korea)

Hak-Sung Kim, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Korea)

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First published: 10 September 2015
Citations: 8

Abstract

Targeted therapy based on protein–drug conjugates has attracted significant attention owing to its high efficacy and low side effects. However, efficient and stable drug conjugation to a protein binder remains a challenge. Herein, a chemoenzymatic method to generate highly stable and homogenous drug conjugates with high efficiency is presented. The approach comprises the insertion of the CaaX sequence at the C-terminal end of the protein binder, prenylation using farnesyltransferase, and drug conjugation through an oxime ligation reaction. MMAF and an EGFR-specific repebody are used as the antitumor agent and protein binder, respectively. The method enables the precisely controlled synthesis of repebody–drug conjugates with high yield and homogeneity. The utility of this approach is illustrated by the notable stability of the repebody–drug conjugates in human plasma, negligible off-target effects, and a remarkable antitumor activity in vivo. The present method can be widely used for generating highly homogeneous and stable PDCs for targeted therapy.

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