Follicular helper T lymphocytes in health and disease

• 作者: Alejandro Malbrán Ana Coraglia Cecilia Parodi María Marta de Elizalde de Bracco María Noel Badano Nora Galassi Patricia Baré
• 来源期刊: 世界血液学杂志
• 学科: 医学
• 关键词: FOLLICULAR helper T(TFH)lymphocytes TFH development Chemokine(C-X-C motif)receptor 5 INTERLEUKIN-21 Programmed CELL death-1/Programmed CELL death ligand 1(PDL-1)or PDL-2 Primary IMMUNODEFICIENCIES Autoimmunity Chronic viral INFECTIONS Protozoan INFECTIONS
• 年，卷（期）: 2014,（4）
• 页码范围: 118-127
• 页数: 10页
• 分类号: R

摘要

A correct antibody response requires the participation of both B and T lymphocytes and antigen presenting cells.In this review we address the role of follicular helper T lymphocytes(TFH)in this reaction.We shall focus on the regulation of their development and function in health and disease.TFH can be characterized on the basis of their phenotype and the pattern of secretion of cytokines.This fact is useful to study their participation in the generation of antibody deficiency in primary immunodeficiency diseases such as common variable immunodeficiency,X-linked hyper IgM syndrome or X-linked lymphoproliferative disease.Increased numbers of TFH have been demonstrated in several autoimmune diseases and are thought to play a role in the development of autoantibodies.In chronic viral infections caused by the human immunodeficiency virus,hepatitis B or C virus,increased circulating TFH have been observed,but their role in the protective immune response to these agents is under discussion.Likewise,an important role of TFH in the control of some experimental protozoan infections has been proposed,and it will be important to assess their relevance in order to design effective vaccination strategies.