Passt nicht? Macht nichts! Bei uns ist die Rückgabe innerhalb von 30 Tagen möglich
Mit einem Geschenkgutschein können Sie nichts falsch machen. Der Beschenkte kann sich im Tausch gegen einen Geschenkgutschein etwas aus unserem Sortiment aussuchen.
30 Tage für die Rückgabe der Ware
T lymphocytes play central roles in all adaptive immune responses against protein antigens. In cell-mediated immunity, CD4 T cells activate macropnages to destroy phagocytosed microbes, and CD8 T cells kill cells infected with intracellular microbes. In Humoral immunity, CD4 helper T cells interact with B lymphocytes and stimulate the proliferation and differentiation of these B cells. Both the induction phase and the effector phase of T cell responses are triggered by the specific recognition of antigen. T cells recognize antigens only in the form of peptides displayed by the products of self MHC genes on the surface of APCs. CD4 helper T lymphocytes recognize antigens in association with class II MHC gene products (class II MHC-restricted recognition), and CD8 CTLs recognize antigens in association with class I gene products (class I MHC-restricted recognition).