Follicular helper T cell: Emerging roles in lymphomagenesis.

Follicular helper T cells (Tfh) are a subset of CD4+ T cells that are fundamental to forming germinal centers, which are the primary sites of antibody affinity maturation and the proliferation of activated B cells. Tfh cells have been extensively studied over the past 10 years, especially regarding their roles in cancer genesis. This review describes the characteristics of normal Tfh cells and focuses on the emerging link between Tfh cells and lymphomagenesis. Advances in lymphoma genetics have substantially expanded our understanding of the role of Tfh cells in lymphomagenesis. Moreover, we detail a range of agents and new therapies, with a major focus on chimeric antigen receptor T-cell therapy; these novel approaches may offer new treatment opportunities for patients with lymphomas.