protein a defined as one of the components of the wall of staphylococcus aureus cowans 1 has shown its effects as modifier of the immune response : it induce changes in cellular receptors , polyclonal activation of t and b lymphocytes , liberation of lymphokines , increase in the production of gamma-interferon ( probably as the result of activation of nk cells ) .
C0301872
immune response
C1155064
activation