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    • 41. 发明授权
    • Isolated CD8 +T lymphocytes specifically cytotoxic for a disease causing target cell
    • 孤立的CD8 + T淋巴细胞特异性细胞毒性致病目标细胞
    • US07811816B2
    • 2010-10-12
    • US10144188
    • 2002-05-13
    • Zeling CaiMichael R. JacksonPer A. PetersonWei-Xing ShiYan KongJuli DeGraw
    • Zeling CaiMichael R. JacksonPer A. PetersonWei-Xing ShiYan KongJuli DeGraw
    • C12N5/08
    • A61K39/0008A61K2035/122C12N5/0636C12N2501/23C12N2501/51C12N2501/58C12N2502/50C12N2502/99
    • Cytotoxic T lymphocytes (CTLs) specific for antigenic peptides derived from IgE molecule can be generated in vitro by stimulating resting naive CD8 T cells with IgE peptides presented by artificial antigen presenting cells. The IgE specific CTLs lyse the target cells loaded with IgE peptides in vitro and inhibit antigen specific IgE response in vivo. In addition, adoptive transfer of the IgE specific CTL to an asthmatic mouse model can inhibit the development of lung inflammation and airway hypersensitivity. IgE specific CTL provides a treatment for allergic asthma and other IgE-mediated allergic diseases. Antigenic peptides identified from non-tumor self-antigens induce specific cytotoxic T lymphocyte (CTL) in vitro. The CTL induced by peptides identified from CD40L can kill activated CD4 T cells. In vitro generated CTL specific for CD40L inhibit CD4-dependent antibody responses of all isotypes in vivo. In contrast, CTL induced by antigenic peptides derived from IgE specifically inhibit IgE responses, and adoptive transfer of CD40L-specific CTL to NOD mice at early age delay the development of diabetes in NOD mice. In vitro generated CTL specific for non-tumor self-antigens expressed on activated CD4 T cells regulate immune responses in vivo.
    • 可以通过用人造抗原呈递细胞呈递的IgE肽刺激静息幼稚CD8T细胞在体外产生来自IgE分子的抗原肽特异性的细胞毒性T淋巴细胞(CTL)。 IgE特异性CTL在体外裂解装载有IgE肽的靶细胞,并在体内抑制抗原特异性IgE反应。 此外,将IgE特异性CTL过继转移至哮喘小鼠模型可以抑制肺部炎症和气道超敏反应的发展。 IgE特异性CTL提供过敏性哮喘和其他IgE介导的过敏性疾病的治疗。 从非肿瘤自身抗原鉴定的抗原肽在体外诱导特异性细胞毒性T淋巴细胞(CTL)。 由CD40L鉴定的肽诱导的CTL可以杀死活化的CD4T细胞。 体外产生的CD40L特异性CTL可抑制体内所有同种型的CD4依赖性抗体反应。 相比之下,来自IgE的抗原肽诱导的CTL特异性抑制IgE应答,CD40L特异性CTL过早转移到NOD小鼠早期延迟NOD小鼠的糖尿病发展。 在活化的CD4T细胞上表达的非肿瘤自身抗原的体外产生的CTL调节体内的免疫应答。
    • 43. 发明授权
    • Purification of antigen-specific T cells
    • 抗原特异性T细胞的纯化
    • US07125964B2
    • 2006-10-24
    • US10785472
    • 2004-02-23
    • Alain T. LuxembourgMichael R. JacksonPer A. Peterson
    • Alain T. LuxembourgMichael R. JacksonPer A. Peterson
    • C07K14/74
    • A61K39/39A61K2039/5158C07K16/2818C12N5/0636C12N2501/51G01N33/5094G01N33/54326G01N33/56977
    • A new method to capture, purify and expand antigen-specific T lymphocytes has been developed using magnetic beads coated with recombinant MHC class I molecules. This method was optimized using homogenous populations of naive T cells purified from mice transgenic for the 2C T cell receptor (TCR). These T cells were captured on beads coated with MHC class I molecules and the relevant antigenic peptides. MHC and peptide specificity was confirmed by the usage of irrelevant MHC peptide combinations. An enrichment of 800 to 1600 fold was measured, using 2C T cells mixed with irrelevant T cells, starting from a 2C T cell frequency of 1/3000. The same approach was used to purify antigen-specific CD8+ T cells from total CD8+ T cells from naive mice. The recovered cells could be expanded and specifically kill target cells in vitro; they had a significant effect in vivo as well. We expect this procedure to be suitable to purify and expand in vitro tumor- and virus-specific killer T cells for use in cell therapy.
    • 已经使用涂覆有重组MHC I类分子的磁珠来开发捕获,纯化和扩增抗原特异性T淋巴细胞的新方法。 使用从2CT细胞受体(TCR)转基因小鼠纯化的纯化T细胞的均质群体优化该方法。 将这些T细胞捕获在涂有MHC I类分子和相关抗原肽的珠上。 通过使用不相关的MHC肽组合证实MHC和肽特异性。 使用与不相关的T细胞混合的2CT细胞,从2CT细胞频率1/3000开始,测量浓度为800至1600倍。 使用相同的方法从幼稚小鼠的总CD8 + T细胞中纯化抗原特异性CD8 + T细胞。 回收的细胞可以扩增并特异性地在体外杀死靶细胞; 它们在体内也具有显着的作用。 我们期望这个程序适合于净化和扩大体外肿瘤和病毒特异性杀伤T细胞用于细胞治疗。