αV can associate with several β chains and can have multiple specificities, including interactions with vitronectin and fibronectin.
After passing through this autoantigenic bottleneck, the initial humoral autoimmune response then usually diversifies, with the sequential development of autoantibodies binding multiple specificities before clinical presentation and diagnosis.
We found that the patients who demonstrated T-cell responses of multiple specificities (patients 6, 11, 12, and 13) were seronegative, whereas those showing far fewer T-cell reactivities had the highest antibody titres (patients 5, 8, 18, 18 and 31).
Thus, these 3 patients were considered to have multiple specificities in their first available sample and were included in the multiple specificity group for analysis.
No significant differences in gender, race, or age at diagnosis were found between the patients with a single initial autoantibody and those with multiple specificities.
It is important to realize that kinetic rates returned using these binding models for polyclonal serum represent only apparent rates of binding due to the multiple specificities inherent to a polyclonal response and do not define the kinetics of the polyclonal antibody anti-HA antibody response.
RA is associated with the production of multiple autoantibody specificities and the dysregulation of multiple cytokines, which are both present in the serum proteome in RA patients [ 12].
They identify multiple specificities in peptide data by performing two essential tasks simultaneously, alignment and clustering, and therefore find biologically relevant binding motifs that cannot be described well with a single PWM.
We conclude that the expression system reported herein will represent a valuable tool to produce human SIgA Ab of multiple specificities against H. pylori antigens involved in colonization and persistence.
Consistent with reports on the development B19V specific cellular response in adults with an acute infection, we identified a B19V specific CD8+ T-cell response with multiple specificities, which gradually decreased over time [5], [10].
