Impact of vaccine therapy using nuclear histone H1 on allograft survival in experimental organ transplantation

Toshiaki Nakano, Shigeru Goto, Chia Yun Lai, Li Wen Hsu, Kazuhisa Ono, Seiji Kawamoto, Yu Chun Lin, Ying Hsien Kao, Kuei Chen Chiang, Naoya Ohmori, Takeshi Goto, Shuji Sato, Chieh Hsien Tu, Bruno Jawan, Yu Fan Cheng, Chao Long Chen*

*此作品的通信作者

研究成果: 期刊稿件文章同行評審

11 引文 斯高帕斯(Scopus)

摘要

Background: We recently reported that autoreactive antibody (Ab) against nuclear histone H1 had been identified as an immunosuppressive factor in a rat tolerogenic orthotopic liver transplantation (OLT) model. The present study aimed to determine whether the up-regulation of antihistone H1 Ab by histone H1 vaccination leads to tolerance. Methods: Histone H1-immunized rats were established by intraperitoneal vaccination with histone H1 at every two-weekly interval. By using mixed lymphocyte reaction (MLR) and heterotopic heart transplantation (HHT), the alloreactive T cell response and allograft survival of histone H1-immunized rats were compared with those of control rats. Cytokine and cellular profiles in histone H1-immunized rats were determined by reverse transcriptase polymerase chain reaction (RT-PCR), enzyme-linked immunosorbent assay (ELISA) and flow cytometry. Results: Immunization with histone H1 in Freund's adjuvant induced alloreactive T cell unresponsiveness and prolonged heterotopic heart allograft survival. It also down-regulated the expression of major histocompatibility complex (MHC) class II and CD25 on splenic cells, elevated the T helper cell type 2 (Th2) skewing index (Interleukin (IL)-4/interferon (IFN)-γ ratio or IL-4/IL-2 ratio) and modified the serum cytokine profiles. Conclusions: The present results suggest that histone H1 vaccination of transplant recipients, which leads to the production of immunosuppressive factor and the modification of the cytokine/cellular profiles, has great potential as a tolerance therapy for prospective transplantation.

原文英語
頁(從 - 到)147-152
頁數6
期刊Transplant Immunology
17
發行號3
DOIs
出版狀態已出版 - 04 2007
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