Direct cytotoxicity against chicken erythrocytes in mice. III. Degrees of radiosensitivity and cross-reactivity of cytotoxicity, delayed hypersensitivity and antibody production

C. Kubo, K. Nomoto, K. Taniguchi, F. Nanishi, Y. Shimamoto, K. Takeya

研究成果: Contribution to journalArticle

3 引用 (Scopus)

抜粋

Exposure to 600 rad of X-irradiation 3 h after primary immunization with chicken erythrocytes (CRBC) abolished the production of antibodies and the generation of killer T cells, but scarcely affected the induction of delayed footpad reactions. Exposure to irradiation 3h after secondary immunization reduced only slightly the generation of killer T cells and reduced slightly or substantially the production of antibodies. Delayed reactions persisted for long periods after elicitation in irradiated, boosted mice. Cross-reactivity between CRBC and quail erythrocytes (QRBC) was very weak with respect to the cytotoxicity, antibody and delayed reaction raised after primary immunization. Those raised after secondary immunization with the homologous antigen showed some degrees of cross-reactivity to another antigen. The booster with QRBC in CRBC-primed mice augmented the response to CRBC with respect to the induction of cytotoxicity and delayed footpad reaction, but only weakly affected the response with respect to the production of antibody. Therefore, effector cells of cytotoxicity and delayed footpad reaction showed greater degrees of cross reactivity than antibody-producing cells during an anamnestic response. The cross-reactive response raised after secondary immunization was radioresistant with respect to cytotoxicity and delayed footpad production. Cytotoxicity to immunizing antigen was inhibited by the unlabelled homologous antigen. Cytotoxicity to a cross-reacting antigen was inhibited by the same cross-reacting antigen and also by an immunizing antigen. There may exist heterogeneous populations of cytotoxic lymphocytes with different abilities to recognize antigens.

元の言語英語
ページ(範囲)827-834
ページ数8
ジャーナルImmunology
37
発行部数4
出版物ステータス出版済み - 1979

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology

フィンガープリント Direct cytotoxicity against chicken erythrocytes in mice. III. Degrees of radiosensitivity and cross-reactivity of cytotoxicity, delayed hypersensitivity and antibody production' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用