Consequently, NFKB2/p100 processing and nuclear translocation were abrogated.     ///    "Using flow cytometry, we further demonstrated that there was a reduction in B cells (CD19+), switched memory B cells (CD27+IgD-) and T follicular helper (Tfh) cells (both CD4+CXCR5+ and CD4+CXCR5Hi) in a CVID patient with NFKB2/p100?19, compared to healthy controls. "