40 research outputs found

    Memet Fuat, Piraye ve Nazım

    Get PDF
    Taha Toros Arşivi, Dosya Adı: Nazım Hikmetİstanbul Kalkınma Ajansı (TR10/14/YEN/0033) İstanbul Development Agency (TR10/14/YEN/0033

    Enhancement of anti-STLV-1/HTLV-1 immune responses through multimodal effects of anti-CCR4 antibody.

    Get PDF
    Human T-cell leukemia virus type 1 (HTLV-1) causes adult T-cell leukemia and inflammatory diseases. Because anti-HTLV-1 immune responses are critical for suppressing infected cells, enhancing cellular immunity is beneficial for the treatment of HTLV-1-associated diseases. Using simian T-cell leukemia virus type 1 (STLV-1) infected Japanese macaques, we analyzed the immune responses to viral antigens and the dynamics of virus-infected cells. The chemokine receptor CCR4 is expressed on STLV-1 infected cells, and administration of humanized monoclonal antibody to CCR4, mogamulizumab, dramatically decreased the number of STLV-1-infected cells in vivo. Concurrently, mogamulizumab treatment enhanced STLV-1 specific CD4[+] and CD8[+] T cell responses by simultaneously targeting CCR4[+] effector regulatory T (Treg) cells and infected cells. Mogamulizumab promoted the phagocytosis of CCR4[+] infected cells by macrophages, which likely enhanced antigen presentation. Vaccination with recombinant vaccinia virus (rVV) expressing viral antigens suppressed the proviral load and the number of Tax-expressing cells. Enhanced T-cell responses were also observed in some ATL patients who were treated with mogamulizumab. This study shows that mogamulizumab works not only by killing CCR4[+] infected cells directly, but also by enhancing T cell responses by increasing the phagocytosis of infected cells by antigen-presenting cells and suppressing CCR4[+] effector Treg cells

    HTLV-1 bZIP factorはTh1サイトカイン産生を抑制し、細胞性免疫を障害する

    Get PDF
    京都大学0048新制・課程博士博士(医学)甲第16721号医博第3669号新制||医||992(附属図書館)29396京都大学大学院医学研究科医学専攻(主査)教授 小柳 義夫, 教授 髙折 晃史, 教授 生田 宏一学位規則第4条第1項該当Doctor of Medical ScienceKyoto UniversityDA

    Antibody Response to Live Attenuated Vaccines in Adults in Japan

    No full text
    The purpose of this study was to examine the efficacy rendered with a single dose of live attenuated measles, rubella, mumps, and varicella containing vaccine
    corecore