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Studies on induction and control of cell-mediated autoimmunity. I. Induction of "autoreactive" T lymphocytes in mice by cyclophosphamide. 1978

J L'age-Stehr, and T Diamantstein

Injection of a single dose of cyclophosphamide (CY) (125 mg/kg) or a combination of a small dose of CY (20 mg/kg) and 2.5 mg/kg lipopolysaccharide induces a transient appearance of autoreactive T lymphocytes (T-ARC) in the spleens of mice. The T-ARC activity reaches a peak 6 days after CY injection and could not be detected 8 days after this treatment. For testing T-ARC activity, spleen cells were injected into the footpads of syngeneic recipients, and the resulting lymph node enlargement at the draining site of cell inoculation and the content of nucleated cells in the lymph node was determined. Possible explanations of this autoimmune phenomenon are discussed. It is postulated that CY-resistant precursors of T-ARC are stimulated by "new" antigenic sites present on the surface of B lymphoblasts repopulating the CY-damaged spleen in a period of transient absence of CY-sensitive suppressor cells.

UI MeSH Term Description Entries
D008806 Mice, Inbred AKR An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research. Mice, AKR,Mouse, AKR,Mouse, Inbred AKR,AKR Mice,AKR Mice, Inbred,AKR Mouse,AKR Mouse, Inbred,Inbred AKR Mice,Inbred AKR Mouse
D008807 Mice, Inbred BALB C An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research. BALB C Mice, Inbred,BALB C Mouse, Inbred,Inbred BALB C Mice,Inbred BALB C Mouse,Mice, BALB C,Mouse, BALB C,Mouse, Inbred BALB C,BALB C Mice,BALB C Mouse
D003520 Cyclophosphamide Precursor of an alkylating nitrogen mustard antineoplastic and immunosuppressive agent that must be activated in the LIVER to form the active aldophosphamide. It has been used in the treatment of LYMPHOMA and LEUKEMIA. Its side effect, ALOPECIA, has been used for defleecing sheep. Cyclophosphamide may also cause sterility, birth defects, mutations, and cancer. (+,-)-2-(bis(2-Chloroethyl)amino)tetrahydro-2H-1,3,2-oxazaphosphorine 2-Oxide Monohydrate,B-518,Cyclophosphamide Anhydrous,Cyclophosphamide Monohydrate,Cyclophosphamide, (R)-Isomer,Cyclophosphamide, (S)-Isomer,Cyclophosphane,Cytophosphan,Cytophosphane,Cytoxan,Endoxan,NSC-26271,Neosar,Procytox,Sendoxan,B 518,B518,NSC 26271,NSC26271
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001323 Autoantibodies Antibodies that react with self-antigens (AUTOANTIGENS) of the organism that produced them. Autoantibody
D013154 Spleen An encapsulated lymphatic organ through which venous blood filters.
D013601 T-Lymphocytes Lymphocytes responsible for cell-mediated immunity. Two types have been identified - cytotoxic (T-LYMPHOCYTES, CYTOTOXIC) and helper T-lymphocytes (T-LYMPHOCYTES, HELPER-INDUCER). They are formed when lymphocytes circulate through the THYMUS GLAND and differentiate to thymocytes. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen. T Cell,T Lymphocyte,T-Cells,Thymus-Dependent Lymphocytes,Cell, T,Cells, T,Lymphocyte, T,Lymphocyte, Thymus-Dependent,Lymphocytes, T,Lymphocytes, Thymus-Dependent,T Cells,T Lymphocytes,T-Cell,T-Lymphocyte,Thymus Dependent Lymphocytes,Thymus-Dependent Lymphocyte
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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