B cell receptor repertoire analysis from autopsy samples of COVID-19 patients

Autor: Sadahiro Iwabuchi, Tomohide Tsukahara, Toshitugu Okayama, Masahiro Kitabatake, Hideki Motobayashi, Shigeyuki Shichino, Tadashi Imafuku, Kenzaburo Yamaji, Kyohei Miyamoto, Shinobu Tamura, Satoshi Ueha, Toshihiro Ito, Shin-ichi Murata, Toshikazu Kondo, Kazuho Ikeo, Yutaka Suzuki, Kouji Matsushima, Michinori Kohara, Toshihiko Torigoe, Hiroki Yamaue, Shinichi Hashimoto
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Frontiers in Immunology, Vol 14 (2023)
Druh dokumentu: article
ISSN: 1664-3224
DOI: 10.3389/fimmu.2023.1034978
Popis: Neutralizing antibodies against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are being developed world over. We investigated the possibility of producing artificial antibodies from the formalin fixation and paraffin-embedding (FFPE) lung lobes of a patient who died by coronavirus disease 2019 (COVID-19). The B-cell receptors repertoire in the lung tissue where SARS-CoV-2 was detected were considered to have highly sensitive virus-neutralizing activity, and artificial antibodies were produced by combining the most frequently detected heavy and light chains. Some neutralizing effects against the SARS-CoV-2 were observed, and mixing two different artificial antibodies had a higher tendency to suppress the virus. The neutralizing effects were similar to the immunoglobulin G obtained from healthy donors who had received a COVID-19 mRNA vaccine. Therefore, the use of FFPE lung tissue, which preserves the condition of direct virus sensitization, to generate artificial antibodies may be useful against future unknown infectious diseases.
Databáze: Directory of Open Access Journals