Volume 135, Issue 7 e202210209
Forschungsartikel

Amyloid Against Amyloid: Dimeric Amyloid Fragment Ameliorates Cognitive Impairments by Direct Clearance of Oligomers and Plaques

Hee Yang Lee

Hee Yang Lee

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

These authors contributed equally to this work.

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Dr. Seungyeop Baek

Dr. Seungyeop Baek

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

These authors contributed equally to this work.

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Minhae Cha

Minhae Cha

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

These authors contributed equally to this work.

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Prof. Seung-Hoon Yang

Prof. Seung-Hoon Yang

Department of Medical Biotechnology, Dongguk University Jung-gu, Seoul, 04620 South Korea

These authors contributed equally to this work.

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Illhwan Cho

Illhwan Cho

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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Heewon Shin

Heewon Shin

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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Dr. Sejin Lee

Dr. Sejin Lee

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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Dr. Hye Yun Kim

Dr. Hye Yun Kim

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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Songmin Lee

Songmin Lee

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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Dr. Jisu Shin

Dr. Jisu Shin

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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Dr. Donghee Lee

Dr. Donghee Lee

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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Kyeonghwan Kim

Kyeonghwan Kim

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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InWook Park

InWook Park

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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Soljee Yoon

Soljee Yoon

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

Department of Integrative Biotechnology and Translational Medicine, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

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Dr. Jiyoon Kim

Dr. Jiyoon Kim

Brain Science Institute, Korea Institute of Science and Technology Seongbuk-gu, Seoul, 02792 South Korea

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Seong Jeong Park

Seong Jeong Park

Amyloid Solution Bundang-gu, Seongnam-si, Gyeonggi-do, 13486 South Korea

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Dr. Seong Muk Kim

Dr. Seong Muk Kim

Amyloid Solution Bundang-gu, Seongnam-si, Gyeonggi-do, 13486 South Korea

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Ko Eun Kim

Ko Eun Kim

Amyloid Solution Bundang-gu, Seongnam-si, Gyeonggi-do, 13486 South Korea

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Hye Ju Kim

Hye Ju Kim

Amyloid Solution Bundang-gu, Seongnam-si, Gyeonggi-do, 13486 South Korea

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Min-Seok Oh

Min-Seok Oh

Advanced Analysis and data Center, Korea Institute of Science and Technology Seongbuk-gu, Seoul, 02792 South Korea

Department of Stem Cell Biology, Konkuk University Gwangjin-Gu, Seoul, 05029 South Korea

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Dr. Gwan-Ho Lee

Dr. Gwan-Ho Lee

Advanced Analysis and data Center, Korea Institute of Science and Technology Seongbuk-gu, Seoul, 02792 South Korea

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Dr. Byung-Yong Yu

Dr. Byung-Yong Yu

Advanced Analysis and data Center, Korea Institute of Science and Technology Seongbuk-gu, Seoul, 02792 South Korea

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Priyadharshini Kannan

Priyadharshini Kannan

Department of Biochemical Engineering, Gangneung-Wonju National University, Gangneung, 25457 South Korea

Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangwon-do, 25451 South Korea

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Dr. Keunwan Park

Dr. Keunwan Park

Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangwon-do, 25451 South Korea

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Prof. YoungSoo Kim

Corresponding Author

Prof. YoungSoo Kim

Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

Department of Integrative Biotechnology and Translational Medicine, Yonsei University Yeonsu-gu, Incheon, 21983 South Korea

Amyloid Solution Bundang-gu, Seongnam-si, Gyeonggi-do, 13486 South Korea

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First published: 31 October 2022

Abstract

Amyloid-β (Aβ) in the form of neurotoxic aggregates is regarded as the main pathological initiator and key therapeutic target of Alzheimer's disease. However, anti-Aβ drug development has been impeded by the lack of a target needed for structure-based drug design and low permeability of the blood–brain barrier (BBB). An attractive therapeutic strategy is the development of amyloid-based anti-Aβ peptidomimetics that exploit the self-assembling nature of Aβ and penetrate the BBB. Herein, we designed a dimeric peptide drug candidate based on the N-terminal fragment of Aβ, DAB, found to cross the BBB and solubilize Aβ oligomers and fibrils. Administration of DAB reduced amyloid burden in 5XFAD mice, and downregulated neuroinflammation and prevented memory impairment in the Y-maze test. Peptide mapping assays and molecular docking studies were utilized to elucidate DAB-Aβ interaction. To further understand the active regions of DAB, we assessed the dissociative activity of DAB with sequence modifications.

Conflict of interest

SP, SMK, KEK, HJK, and YK are employees to Amyloid Solution, receive equity or equity options, and contributed to the development of technology discussed in this this publication. SYB, HJK, and YK are inventors on a patent licensed by Yonsei University to Amyloid Solution.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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