18) M. Takiguchi, H. Tomiyama, M. Fujiwara, S. Oka, Epitope-dependent effect of Nef-mediated HLA class�Tdown-regulation on ability of HIV-1-specific CTLs to suppress HIV-1 replication, The 18th Annual Meeting of the Japanese Society for AIDS Research (Shizuoka, Japan) December 9-11, 2004

17) Y. Kawashima, M. Satoh, S. Oka, and M. Takiguchi. Identification of HIV-1-specific CD8+ T cell epitopes presented by HLA-A*2603, 5th AIDS Seminar in Kumamoto. (Kumamoto, Japan) September 9-10, 2004.

16) M. satoh, Y. Takamiya, K. Tokunaga, S. Oka and M. Takiguchi, Identification and characterization of HLA-A* 2601-restricted HIV-1 CTL epitopes, 5th AIDS Seminar in Kumamoto. (Kumamoto, Japan) September 9-10, 2004.

15) H. Takata, H. Tomiyama, M. Fujiwara, N. Kobayashi, and M. Takiguchi, The role of CXCR1/IL-8 in acquired immunity: CXCR1 expression on effector CD8+ T cells, 5th AIDS Seminar in Kumamoto. (Kumamoto, Japan) September 9-10, 2004.

14) M. Fujiwara, H. Tomiyama, S. Oka, and M. Takiguchi, Epitope-dependent effect of Nef-mediated HLA class I down-regulation on ability of HIV-1-specific CTL to suppress HIV-1 replication: HLA-B*5101-restricted, HIV-1-specific cytotoxic T cells effectively suppress HIV-1 replication, 5th AIDS Seminar in Kumamoto. (Kumamoto, Japan) September 9-10, 2004.

13) M. Fujiwara, H. Tomiyama, S. Oka, and M. Takiguchi: HLA-B*5101-restricted, HIV-1-specific cytotoxic T cells effectively suppress HIV-1 replication and control HIV-1 in long-term non-progressors and slow progressors, AIDS Vaccine 2004 International Conference(Lausanne, Switzerland) August 30- September 1, 2004

12) H. Takata, H. Tomiyama, M. Fujiwara, N. Kobayashi, and M. Takiguchi: The Role of CXCR1/IL-8 in Acquired Immunity: CXCR1 Expression on Effector CD8+ T Cells. 12th International Congress of Immunology(Montreal, CANADA) July 17-23, 2004

11) T. Ueno, H. Tomiyama, and M. Takiguchi: Impaired responsiveness of HIV-specific CD8 T cells to HIV-infected cells is caused by high-affinity TCR-ligand interactions: An insight into immune evasion by HIV. Keystone Symposia 2004 (Keystone, Canada) April 12-18, 2004

10) M. Takiguchi: HIV-1 escape from HIV-1-specific CD8 T cells in individuals with HIV-1 infection. International sympodium “Infection and Immunity” in annual meeting of Japanese Society of Immunology (Fukuoka, Japan) December 8-10, 2003.

9）M. Takiguchi: HIV-1 escape from HIV-1-specific CD8 T cells in individuals with HIV-1 infection. 7th Asia-Oceania Hitocompatibility Workshop and Conference (Karuizawa, Japan) September 16-19, 2003.

8) H. Takata, H. Tomiyama, and M. Takiguchi: Characterization of HCMV-specific CD8 T cells using HLA-A*02 tetramers. 7th Asia-Oceania Hitocompatibility Workshop and Conference (Karuizawa, Japan) September 16-19, 2003.

7) M. Satoh, Y. Takamiya, S. Oka, K. Tokunaga, and M. Takiguchi: Identification of HIV-1 CD8 T cell epitopes presented by HLA-A*2601. 7th Asia-Oceania Hitocompatibility Workshop and Conference (Karuizawa, Japan) September 16-19, 2003.

6) M. Fujiwara, H. Tomiyama, and M. Takiguchi: Effect of Nef-mediated HLA class I down-regulation on ability of HIV-1-1specific CD8+ T cells to suppress HIV-1 replication. 7th Asia-Oceania Hitocompatibility Workshop and Conference (Karuizawa, Japan) September 16-19, 2003.

5) T. Ueno, H. Tomiyama, M. Fujiwara, and M. Takiguchi: HIV-specific cytotoxic T lymphocyte clone unable to kill HIV-infected cells shows increased binding capacity to peptide-HLA complex. The Second International AIDS Society Conference on HIV Pathogenesis and Treatment (Paris, France) July 13-16, 2003.

4) H. Tomiyama, A. Adachi, and M. Takiguchi: Different effects of Nef-mediated HLA-classI down-regulation on HIV-1-specific CD8+ T cell cytolytic activity and cytokine production. The Awaji International Forum on Infection and immunity (Hyougo, Japan) August 24-27, 2002.

3) K. Fukada, H. Tomiyama, C. Wasi, T. Matsuda, S. Kusagawa H. Sato, S. Oka, Y. Takebe, and M. Takiguchi: Cytotoxic T cell recognition of HIV-1 cross-clade and clade-specific Epitopes in HIV-1-infected Thais and Japanese. XIV International AIDS Conference (Barcelona, Spain) July 7-12, 2002

2) H. Tomiyama, H. Akari, A. Adachi, M. Takiguchi: Different effects of Nef-mediated HLA-class I down-regulation on HIV-1-specific CD8+ T cell cytolytic activity and cytokine production. XIV International AIDS Conference (Barcelona, Spain) July 7-12, 2002.

1) T. Ueno, H. Tomiyama, M. Takiguchi: A single T cell receptor-mediated recognition of an identical peptide in the context of multiple HLA molecules. XIII International Congress of Histocompatibility & Immunogenetics (Seattle, Washington, USA) May 18-22, 2002.