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  1. 原著論文

Antibody feedback contributes to facilitating the development of Omicron-reactive memory B cells in SARS-CoV-2 mRNA vaccinees

https://repo.qst.go.jp/records/2000528
https://repo.qst.go.jp/records/2000528
5fec6670-94bb-42a1-9809-d0e2ad949d10
アイテムタイプ 学術雑誌論文 / Journal Article(1)
公開日 2024-07-04
タイトル
タイトル Antibody feedback contributes to facilitating the development of Omicron-reactive memory B cells in SARS-CoV-2 mRNA vaccinees
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 Takeshi Inoue

× Takeshi Inoue

Takeshi Inoue

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Ryo Shinnakasu

× Ryo Shinnakasu

Ryo Shinnakasu

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Chie Kawai

× Chie Kawai

Chie Kawai

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Hiromi Yamamoto

× Hiromi Yamamoto

Hiromi Yamamoto

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Shuhei Sakakibara

× Shuhei Sakakibara

Shuhei Sakakibara

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Chikako Ono

× Chikako Ono

Chikako Ono

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Yumi Itoh

× Yumi Itoh

Yumi Itoh

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Tommy Terooatea

× Tommy Terooatea

Tommy Terooatea

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Kazuo Yamashita

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Kazuo Yamashita

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Toru Okamoto

× Toru Okamoto

Toru Okamoto

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Noritaka Hashii

× Noritaka Hashii

Noritaka Hashii

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Akiko Ishii-Watabe

× Akiko Ishii-Watabe

Akiko Ishii-Watabe

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Noah Butler

× Noah Butler

Noah Butler

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Yoshiharu Matsuura

× Yoshiharu Matsuura

Yoshiharu Matsuura

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Hisatake Matsumoto

× Hisatake Matsumoto

Hisatake Matsumoto

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Shinya Otsuka

× Shinya Otsuka

Shinya Otsuka

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Kei Hiraoka

× Kei Hiraoka

Kei Hiraoka

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Takanori Teshima

× Takanori Teshima

Takanori Teshima

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Masaaki Murakami

× Masaaki Murakami

Masaaki Murakami

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抄録
内容記述タイプ Abstract
内容記述 In contrast to a second dose of the SARS-CoV-2 mRNA vaccine, a third dose elicits potent neutralizing activity against the Omicron variant. To address the underlying mechanism for this differential antibody response, we examined spike receptor-binding domain (RBD)-specific memory B cells in vaccinated individuals. Frequency of Omicron-reactive memory B cells increased ?9 mo after the second vaccine dose. These memory B cells show an altered distribution of epitopes from pre-second memory B cells, presumably due to an antibody feedback mechanism. This hypothesis was tested using mouse models, showing that an addition or a depletion of RBD-induced serum antibodies results in a concomitant increase or decrease, respectively, of Omicron-reactive germinal center (GC) and memory B cells. Our data suggest that pre-generated antibodies modulate the selection of GC and subsequent memory B cells after the second vaccine dose, accumulating more Omicron-reactive memory B cells over time, which contributes to the generation of Omicron-neutralizing antibodies elicited by the third vaccine dose.
書誌情報 Journal of Experimental Medicine

巻 220, 号 2, p. e20221786., 発行日 2023-03
出版者
出版者 Rockefeller University Press
ISSN
収録物識別子タイプ ISSN
収録物識別子 0022-1007
DOI
識別子タイプ DOI
関連識別子 10.1084/jem.20221786
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