Title | T-bet+ Memory B Cells Link to Local Cross-Reactive IgG upon Human Rhinovirus Infection. | ||
Author | Eccles, Jacob D; Turner, Ronald B; Kirk, Nicole A; Muehling, Lyndsey M; Borish, Larry; Steinke, John W; Payne, Spencer C; Wright, Paul W; Thacker, Deborah; Lahtinen, Sampo J; Lehtinen, Markus J; Heymann, Peter W; Woodfolk, Judith A | ||
Journal | Cell Rep | Publication Year/Month | 2020-Jan |
PMID | 31940481 | PMCID | PMC6994188 |
Affiliation + expend | 1.Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA. |
Human rhinoviruses cause the common cold and exacerbate chronic respiratory diseases. Although infection elicits neutralizing antibodies, these do not persist or cross-protect across multiple rhinovirus strains. To analyze rhinovirus-specific B cell responses in humans, we developed techniques using intact RV-A16 and RV-A39 for high-throughput high-dimensional single-cell analysis, with parallel assessment of antibody isotypes in an experimental infection model. Our approach identified T-bet+ B cells binding both viruses that account for approximately 5% of CXCR5- memory B cells. These B cells infiltrate nasal tissue and expand in the blood after infection. Their rapid secretion of heterotypic immunoglobulin G (IgG) in vitro, but not IgA, matches the nasal antibody profile post-infection. By contrast, CXCR5+ memory B cells binding a single virus are clonally distinct, absent in nasal tissue, and secrete homotypic IgG and IgA, mirroring the systemic response. Temporal and spatial functions of dichotomous memory B cells might explain the ability to resolve infection while rendering the host susceptible to re-infection.