Activation of adaptive immune response

Activation of adaptive immune response" is not a specific molecule, receptor, or druggable target. Instead, it refers to a complex biological process involving the recognition and elimination of pathogens by highly specialized cells—primarily B cells and T cells—of the adaptive immune system[1][3][5]. This process is initiated when antigens are presented to lymphocytes, leading to their activation, proliferation, and differentiation into effector and memory cells. The adaptive immune system provides specificity for particular pathogens and immunological memory for faster responses upon re-exposure[1][3]. While this process is essential for effective immunity against infections and forms the basis for vaccination strategies, its dysregulation can result in allergies or autoimmune diseases[1][4]. **Note:** "Activation of adaptive immune response" does not correspond to a single molecular entity but rather describes an orchestrated sequence of cellular events; therefore, it should not be considered a canonical therapeutic target such as a receptor or enzyme.