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Hierarchy of T Cell Dependency in Antibody Response among Different Antigens
Author(s) -
Amagai Takashi,
Muramatsu Shigeru
Publication year - 1979
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/j.1348-0421.1979.tb00553.x
Subject(s) - antigen , lipopolysaccharide , biology , bone marrow , immunology , antibody , t cell , microbiology and biotechnology , bovine serum albumin , antigen presenting cell , gamma globulin , immune system
T cell dependency of antibody response to polyvinylpyrrolidone (PVP), sheep red blood cells (SRBC), bovine gamma globulin (BGG), and bovine serum albumin (BSA) was examined. PVP and the other three are known as a T cell‐independent antigen and T cell‐dependent antigens respectively. Adult mice were thymectomized, X‐irradiated, reconstituted with syngeneic bone marrow cells (TxXB mice), with bone marrow cells plus thymus cells (TxXBT mice), or with bone marrow cells treated with anti‐Thy‐1.2 serum and complement (TxXB‐0 mice) and used as experimental animals. The anti‐PVP response of TxXBT mice was significantly lower than that of TxXB mice, suggesting that T cells exerted a suppressive effect on the response to PVP. Both IgM and IgG responses to SRBC and BGG occurred even in TxXB‐θ mice with the aid of bacterial lipopolysaccharide (LPS). However, a significant response to BSA was not observed in TxXB mice even in the presence of LPS or several other adjuvants. These results indicate that the T cell dependency of antigens is different among so called thymus‐dependent antigens, that antibody response less dependent on the helper action of T cells can be supported by LPS in the absence of T cells, and that anti‐BSA response seems to be extremely T cell dependent.