The Humoral Response - B Cell Activation, Antibody Production & Memory Cells

The video explains the humoral immune response, focusing on B cell activation, antibody production, and memory cell formation. It begins with an introduction to the immune system's response to pathogens like the West Nile virus. The process of B cell activation is detailed, including antigen presentation and the role of helper T cells. The video covers clonal expansion, where B cells differentiate into plasma cells and memory B cells. Plasma cells produce antibodies that neutralize antigens, while memory B cells provide long-term immunity. The video also discusses isotype switching and affinity maturation, enhancing antibody effectiveness. The conclusion highlights the importance of the humoral response and previews the next topic on cell-mediated immunity.

How do memory B cells contribute to a faster immune response upon re-exposure to a pathogen?

What is isotype switching and why is it important?

What is the significance of affinity maturation in the immune response?