Medicine and Health

A therapeutic neutralizing antibody targeting receptor binding domain of SARS-CoV-2 spike protein

C. Kim, D. Ryu, et al.

Discover how the CT-P59 monoclonal antibody exhibits strong neutralization against SARS-CoV-2, including the D614G variant, with promising therapeutic effects demonstrated in animal models. This groundbreaking research was conducted by Cheolmin Kim, Dong-Kyun Ryu, Jihun Lee, and fellow authors.

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Abstract

This study screens human monoclonal antibodies (mAbs) targeting the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein. The identified CT-P59 mAb potently neutralizes SARS-CoV-2 isolates, including the D614G variant, without antibody-dependent enhancement. Crystal structure analysis reveals a distinct interaction with the RBD compared to other known mAbs. In vivo studies in ferrets, hamsters, and rhesus monkeys demonstrate therapeutic efficacy, reducing viral load and alleviating symptoms. CT-P59 shows promise as a therapeutic candidate for COVID-19.

Publisher

Nature Communications

Published On

Jan 12, 2021

Authors

Cheolmin Kim, Dong-Kyun Ryu, Jihun Lee, Young-Il Kim, Ji-Min Seo, Yeon-Gil Kim, Jae-Hee Jeong, Minsoo Kim, Jong-In Kim, Pankyeom Kim, Jin Soo Bae, Eun Yeong Shim, Min Seob Lee, Man Su Kim, Hanmin Noh, Geun-Soo Park, Jae Sang Park, Dain Son, Yongjin An, Jeong No Lee, Ki-Sung Kwon, Joo-Yeon Lee, Hansaem Lee, Jeong-Sun Yang, Kyung-Chang Kim, Sung Soon Kim, Hye-Min Woo, Jun-Won Kim, Man-Seong Park, Kwang-Min Yu, Se-Mi Kim, Eun-Ha Kim, Su-Jin Park, Seong Tae Jeong, Chi Ho Yu, Youngjoo Song, Se Hun Gu, Hanseul Oh, Bon-Sang Koo, Jung Joo Hong, Choong-Min Ryu, Wan Beom Park, Myoung-don Oh, Young Ki Choi, Soo-Young Lee

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