Role of circumsporozoite protein-specific T-cells in protective immunity against Plasmodium berghei. 1990

U Krzych, and K White, and H T Link, and J Sadoff, and D Lanar, and W R Ballou, and T Jareed, and A Agarwal
Department of Biology, Catholic University of America, Washington, DC 20064.

The Plasmodium berghei circumsporozoite (CS) protein-specific T-cell repertoire was analysed in C57Bl/6 (H-2b), Balb/c (H-2d), and C3H/HeN (H-2k) mice immunized with irradiated sporozoites and the proliferative responses were correlated with the protective status of each strain. Splenic lymphocytes responded to the priming antigen, but the responses varied according to both murine strain and immunization schedule. Analysis of cytolytic T lymphocyte (CTL) responses in mice immunized with irradiated P. berghei sporozoites or with a Salmonella-recombinant CS protein construct revealed that each immunization induces CTLs recognizing different epitopes on the target cells. The variations in immune reactivities among different murine strains to the CS protein antigens and the variations in the responses to the authentic versus recombinantly expressed CS protein suggest that distinct immune mechanisms may be involved in rendering immune protection. Furthermore, the molecular context of the immunizing antigen may influence the outcome of the fine specificity of T cells involved in immune protection.

UI MeSH Term Description Entries
D007114 Immunization Deliberate stimulation of the host's immune response. ACTIVE IMMUNIZATION involves administration of ANTIGENS or IMMUNOLOGIC ADJUVANTS. PASSIVE IMMUNIZATION involves administration of IMMUNE SERA or LYMPHOCYTES or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow). Immunologic Stimulation,Immunostimulation,Sensitization, Immunologic,Variolation,Immunologic Sensitization,Immunological Stimulation,Sensitization, Immunological,Stimulation, Immunologic,Immunizations,Immunological Sensitization,Immunological Sensitizations,Immunological Stimulations,Sensitizations, Immunological,Stimulation, Immunological,Stimulations, Immunological,Variolations
D008212 Lymphocyte Depletion Immunosuppression by reduction of circulating lymphocytes or by T-cell depletion of bone marrow. The former may be accomplished in vivo by thoracic duct drainage or administration of antilymphocyte serum. The latter is performed ex vivo on bone marrow before its transplantation. Depletion, Lymphocyte
D008297 Male Males
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
D008809 Mice, Inbred C3H An inbred strain of mouse that is used as a general purpose strain in a wide variety of RESEARCH areas including CANCER; INFECTIOUS DISEASES; sensorineural, and cardiovascular biology research. Mice, C3H,Mouse, C3H,Mouse, Inbred C3H,C3H Mice,C3H Mice, Inbred,C3H Mouse,C3H Mouse, Inbred,Inbred C3H Mice,Inbred C3H Mouse
D010962 Plasmodium berghei A protozoan parasite of rodents transmitted by the mosquito Anopheles dureni. Plasmodium bergheus,berghei, Plasmodium
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
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
D000953 Antigens, Protozoan Any part or derivative of any protozoan that elicits immunity; malaria (Plasmodium) and trypanosome antigens are presently the most frequently encountered. Protozoan Antigens

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