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Biomedical Basics

Adaptive immune system

  • Created by Henry Stewart Talks
Published on February 26, 2026   4 min

A selection of talks on Immunology & Inflammation

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In this talk, the focus is adaptive immune system, supported by coverage of the structure and functions of the adaptive immune system, highlighting its specificity, memory, and distinction from innate immunity. We will discuss key cellular players, mechanisms of antigen recognition, and the roles of T and B lymphocytes in orchestrating precise immune responses. The presentation will also explore immune memory, the principles behind vaccination and the delicate balance required to avoid autoimmunity. Finally, we will examine how adaptive immunity contributes to disease prevention, therapeutic innovations, and the challenges posed by its dysfunction. Today, we'll explore the adaptive immune system, the sophisticated layer of our immune defense that learns and remembers. Unlike the innate immune systems immediate, but generic response, adaptive immunity generates tailored responses against specific pathogens. Its hallmarks are specificity and immunological memory, allowing it to respond more efficiently upon each subsequent encounter with the same pathogen. This underpins the effectiveness of vaccinations and informs advances like cancer immunotherapy. The adaptive immune system also plays a role in preventing infections, maintaining self tolerance, and when dysregulated, can contribute to auto immunity. Adaptive immunity begins with recognition of antigens, the molecular signatures of pathogens and abnormal cells. Dendritic cells, macrophages and B cells act as antigen presenting cells,

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