T-cell and B-cell Immunology

Cysteine reactivity profiling links metabolic rewiring to the dysfunctional human T cell proteome.

In chronically stimulated human T cells, suppressed oxidative metabolism and nucleotide loss accompany MAP2K4 activation. Inhibiting MAP2K4 (with the MKK4/7 inhibitor BSJ-04-122) restored tumor-cell killing in vitro.

replicateFest: An R Package and Shiny App for Analysis of T Cell Receptor Repertoire Data from the Functional Expansion

replicateFest uses negative binomial models for replicated and Fisher's exact tests for unreplicated FEST TCR-seq to call antigen-expanded clonotypes, recovering all nine published HIV-1 responders.

Tfh dysfunction is associated with poor responses to HBV vaccination

HBV vaccine-draining lymph node biopsies tie low antibody titers to reduced, interferon-skewed GNG4+ germinal center T follicular helper cells; public B cell clonotypes did not track response.

Intestinal uptake regulates T cell responses to dietary antigens

Intestinal uptake, set by protein solubility and goblet versus M cell sampling, limits how strongly different zein preparations induce antigen-specific intestinal T cells in mice.

Temporally overlapping mechanisms diversify clonal B cell responses in vivo.

Single-cell RNA and BCR sequencing of infected mouse spleens shows class switching overlaps clonal expansion, GC-seeding clones also form plasmablasts, and SHM proceeds at constant rate.