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SARS-CoV-2 mucosal antibody development and persistence and their relation to viral load and COVID-19 symptoms


Posted: 2021-09-24 19:00:00
Although serological studies have shown that antibodies against SARS-CoV-2 play an important role in protection against (re)infection, the dynamics of mucosal antibodies during primary infection and their potential impact on viral load and the resolution of disease symptoms remain unclear. During the first pandemic wave, we assessed the longitudinal nasal antibody response in index cases with mild COVID-19 and their household contacts. Nasal and serum antibody responses were analysed for up to nine months. Higher nasal receptor binding domain and spike protein-specific antibody levels at study inclusion were associated with lower viral load. Older age was correlated with more frequent COVID-19 related symptoms. Receptor binding domain and spike protein-specific mucosal antibodies were associated with the resolution of systemic, but not respiratory symptoms. Finally, receptor binding domain and spike protein-specific mucosal antibodies remained elevated up to nine months after symptom onset.

参考サイト PubMed: covid-19



バイオクイックニュース日本語版:COVID-19特集

バイオクイックニュース日本語版
2月 19, 2021 バイオアソシエイツ

オンチップ生合成したNK細胞由来エクソソームが、非小細胞肺癌に対して抗腫瘍活性を示す

ミシガン大学ローゲル癌センターとミシガン大学工学部の研究者らは、癌と戦うためのナチュラルキラー免疫細胞の配備という新たな治療法の開発の面で一歩進んでいる。この研究者らは、ナチュラルキラー細胞をキャプチャーし、それらに癌を殺す エクソソーム を放出させる最初の体系的な方法を開発した。…

ゲスト 1038人 と メンバー 6人 がオンラインです