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Generation of tissue-specific H-2Kd transgenic mice for the study of K(d)-restricted malaria epitope-specific CD8+ T-cell responses in vivo.

J. Immunol. Methods. 2013 Jan 31;387(1-2):254-61. Epub 2012 Nov 08
Jing Huang 1 , Xiangming Li , Kenji Kohno , Masahiko Hatano , Takeshi Tokuhisa , Peter J Murray , Thomas Brocker , Moriya Tsuji
Jing Huang 1 , Xiangming Li , Kenji Kohno , Masahiko Hatano , Takeshi Tokuhisa , Peter J Murray , Thomas Brocker , Moriya Tsuji
+ et al

[No authors listed]

Author information
  • 1 HIV and Malaria Vaccine Program, Aaron Diamond AIDS Research Center, Affiliate of the Rockefeller University, New York, NY 10016, USA.

摘要


CD8(+) T cells are critical for the control of various intracellular infections and cancers. To date, however, effective T cell-based vaccines remain elusive, due, in part, to the lack of in vivo models that facilitate the dissection of antigen-specific CD8(+) T-cell responses primed by different antigen-presenting cells (APCs). In this study, we generated four lines of H-2K(d) transgenic (K(d) Tg) mice that differed in their expression of H-2K(d): dendritic cells (DCs) only (CD11c-K(d)), macrophages only (huCD68-K(d)), hepatocytes only (Alb-K(d)), or all nucleated cells (major histocompatibility complex-I-K(d)). Immunization of each of these K(d) Tg mouse strains with a synthetic peptide or a recombinant adenovirus expressing a well-known immunodominant, H-2K(d)-restricted CD8(+) T-cell epitope, SYVPSAEQI, which was derived from the circumsporozoite protein of Plasmodium yoelii, promoted distinct SYVPSAEQI-specific CD8(+) T-cell responses. The route of immunization also greatly influenced the magnitude of the epitope-specific CD8(+) T-cell response. These tissue-specific K(d) Tg mice may be valuable tools for determining the mode of induction of CD8(+) T-cell responses by different APCs in vivo and for characterizing the CD8(+) T-cell responses promoted in response to various microbial infections and/or different types of vaccines.

基因