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Monoclonal antibody therapeutics for infectious diseases: Beyond normal human immunoglobulin.


ABSTRACT: Antibody therapy is effective for treating infectious diseases. Due to the coronavirus disease 2019 (COVID-19) pandemic and the rise of drug-resistant bacteria, rapid development of neutralizing monoclonal antibodies (mAbs) to treat infectious diseases is urgently needed. Using a therapeutic human mAb with the lowest immunogenicity is recommended, because chimera and humanized mAbs are occasionally immunogenic. In order to directly obtain naïve human mAbs, there are three methods: phage display, B cell receptor (BCR) cDNA sequencing of a single cell, and antibody-encoding gene and amino acid sequencing of immortalized cells using memory B cells, which are isolated from human peripheral blood mononuclear cells of healthy, vaccinated, infected, or recovered individuals. After screening against the antigen and performing neutralization assays, a human neutralizing mAb is constructed from the antibody-encoding DNA sequences of these memory B cells. This review describes examples of obtaining human neutralizing mAbs against various infectious diseases using these methods. However, a few of these mAbs have been approved for therapy. Therefore, antigen characterization and evaluation of neutralization activity in vitro and in vivo are indispensable for the development of therapeutic mAbs. These results will accelerate the development of antibody drug as therapeutic agents.

SUBMITTER: Ryota O 

PROVIDER: S-EPMC9212443 | biostudies-literature |

REPOSITORIES: biostudies-literature

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