Common Variable Immunodeficiency and Circulating TFH

A 20-YEAR SURVEY OF INFECTIOUS COMPLICATIONS IN 64 PATIENTS WITH COMMON VARIABLE IMMUNODEFICIENCY

Common variable immunodeficiency (CV ID) is a heterogeneous primary immunodeficiency disorder, characterized by hypogammaglobulinemia and increased susceptibility to recurrent bacterial infections. To determine the spectrum of infectious complications in patients with common variable immunodeficiency (CV ID), we reviewed the hospital records of 64 CVID patients, who were diagnosed in Child...

Co-existence of Common Variable Immunodeficiency (CVID) with Idiopathic Thrombocytopenic purpura (ITP)

Circulating T follicular regulatory and helper cells have memory-like properties.

Follicular Tregs (Tfr cells) inhibit antibody production, whereas follicular Th cells (Tfh cells) stimulate it. Tfr cells are found in blood; however, relatively little is known about the developmental signals for these cells or their functions. Here we demonstrated that circulating Tfr and Tfh cells share properties of memory cells and are distinct from effector Tfr and Tfh cells found within ...

Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein Purpura

Henoch-Schönlein purpura (HSP) is a common systemic small vessel vasculitis in children with disorder autoimmune responses. T follicular helper (TFH) cells play crucial roles in regulating immune responses. The aim of our study was to investigate the probable role of TFH cells in the pathogenesis of children with HSP. In this study, the frequency of circulating CXCR5(+)CD4(+)TFH cells with indu...

Inhibition of Aberrant Circulating Tfh Cell Proportions by Corticosteroids in Patients with Systemic Lupus Erythematosus

OBJECTIVE To observe the proportion of peripheral T follicular helper (Tfh) cells in patients with systemic lupus erythematosus (SLE) and to assess the role of steroids on Tfh cells from SLE patients. METHODS Peripheral blood mononuclear cells (PBMCs) from 42 SLE patients and 22 matched healthy subjects were collected to assess proportions of circulating CXCR5(+)PD1(+)/CD4(+) T cells (Tfh), C...