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Deep Characterization of the Human Antibody Response to Natural Infection Using Longitudinal Immune Repertoire Sequencing


ABSTRACT: Human antibody response studies are largely restricted to periods of high immune activity (e.g., vaccination). To comprehensively understand the healthy B cell immune repertoire and how this changes over time and through natural infection, we profiled the antibodies of a single individual over 11 months through two periods of natural viral infection. We found that 1) a baseline of healthy variable (V) gene usage in antibodies exists and is stable over time, but antibodies in memory cells consistently have a different usage profile relative to earlier B cell stages; 2) a single complementarity-determining region 3 (CDR3) is potentially generated from more than one VJ combination; and 3) IgG and IgA antibody transcripts are found at low levels in early human B cell development, suggesting that class switching may occur earlier than previously realized. These findings provide insight into immune repertoire stability, response to natural infections, and human B cell development.

ORGANISM(S): Homo sapiens

PROVIDER: GSE123158 | GEO | 2019/11/26

REPOSITORIES: GEO

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