T follicular helper cells

T follicular helper (Tfh) cells are a specialized type of immune cell located in lymph nodes. Their main role is to assist B cells, another immune cell type, in producing high-quality antibodies that target pathogens like viruses and bacteria. Tfh cells communicate with B cells through direct contact and signaling molecules, guiding them to mature and produce more effective antibodies. They are essential for developing strong, long-lasting immunity, especially after vaccinations. In summary, Tfh cells act as key orchestrators, helping the immune system create precise and durable defenses against infections.