What does antigen specificity mean for an adaptive lymphocyte receptor?

An adaptive lymphocyte receptor recognizes a particular antigenic target or epitope rather than reacting identically to every possible antigen.

Long-lived antigen-specific lymphocytes contribute to immunological {{c1::memory}} after a prior adaptive response.

What happens during clonal expansion of an antigen-selected lymphocyte?

An activated antigen-specific lymphocyte proliferates, producing many related cells with the same original antigen-recognition specificity.

An epitope is the particular region of an antigen recognized by an antibody or antigen receptor; T-cell recognition involves peptide presented by MHC.

Which molecules and cells are central to humoral adaptive immunity?

B cells and their antibody-secreting plasma-cell descendants produce antibodies that act in extracellular fluids.

Immunology — Flashcards — Decks de cartes mémoire médicales

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Immunology — Flashcards

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