Modulation of T Cell Signaling Threshold and T Cell Sensitivity to Antigens
    1.
    发明申请
    Modulation of T Cell Signaling Threshold and T Cell Sensitivity to Antigens 有权
    调制T细胞信号阈值和T细胞对抗原的敏感性

    公开(公告)号:US20110034532A1

    公开(公告)日:2011-02-10

    申请号:US12792585

    申请日:2010-06-02

    摘要: MicroRNAs (miRNAs) are a diverse and abundant class of ˜22-nucleotide (nt) endogenous regulatory RNAs that play a variety of roles in animal cells by controlling gene expression at the posttranscriptional level. Increased miR-181a expression in mature T cells is shown to cause a marked increase in T cell activation and augments T cell sensitivity to peptide antigens. Moreover, T cell blasts with higher miR-181a expression become reactive to antagonists. The effects of miR-181a on antigen discrimination are in part achieved by dampening the expression of multiple negative regulators in the T cell receptor (TCR) signaling pathway, including PTPN22 and the dual specificity phosphatases DUSP5 and DUSP6. This results in a reduction in the TCR signaling threshold, thus quantitatively and qualitatively enhancing T cell sensitivity to antigens.

    摘要翻译: 微RNA(miRNA)是一种多样且丰富的〜22核苷酸(nt)内源性调控RNA,通过控制转录后水平的基因表达,在动物细胞中发挥各种作用。 在成熟T细胞中增加的miR-181a表达显示引起T细胞活化的显着增加并增加T细胞对肽抗原的敏感性。 此外,具有较高miR-181a表达的T细胞爆发成为对拮抗剂的反应性。 miR-181a对抗原鉴别的影响部分通过抑制T细胞受体(TCR)信号通路中多种负调节因子的表达,包括PTPN22和双特异性磷酸酶DUSP5和DUSP6来实现。 这导致TCR信号阈值的降低,从而定量和定性地增强T细胞对抗原的敏感性。

    Modulation of T cell signaling threshold and T cell sensitivity to antigens
    2.
    发明授权
    Modulation of T cell signaling threshold and T cell sensitivity to antigens 有权
    调节T细胞信号阈值和T细胞对抗原的敏感性

    公开(公告)号:US08741860B2

    公开(公告)日:2014-06-03

    申请号:US12792585

    申请日:2010-06-02

    IPC分类号: A61K48/00 C07H21/02 C07H21/04

    摘要: MicroRNAs (miRNAs) are a diverse and abundant class of ˜22-nucleotide (nt) endogenous regulatory RNAs that play a variety of roles in animal cells by controlling gene expression at the posttranscriptional level. Increased miR-181a expression in mature T cells is shown to cause a marked increase in T cell activation and augments T cell sensitivity to peptide antigens. Moreover, T cell blasts with higher miR-181a expression become reactive to antagonists. The effects of miR-181a on antigen discrimination are in part achieved by dampening the expression of multiple negative regulators in the T cell receptor (TCR) signaling pathway, including PTPN22 and the dual specificity phosphatases DUSP5 and DUSP6. This results in a reduction in the TCR signaling threshold, thus quantitatively and qualitatively enhancing T cell sensitivity to antigens.

    摘要翻译: 微RNA(miRNA)是一种多样且丰富的〜22核苷酸(nt)内源性调控RNA,通过控制转录后水平的基因表达,在动物细胞中发挥各种作用。 在成熟T细胞中增加的miR-181a表达显示引起T细胞活化的显着增加并增加T细胞对肽抗原的敏感性。 此外,具有较高miR-181a表达的T细胞爆发成为对拮抗剂的反应性。 miR-181a对抗原鉴别的影响部分通过抑制T细胞受体(TCR)信号通路中多种负调节因子的表达,包括PTPN22和双重特异性磷酸酶DUSP5和DUSP6来实现。 这导致TCR信号阈值的降低,从而定量和定性地增强T细胞对抗原的敏感性。

    Modulation of T cell signaling threshold and T cell sensitivity to antigens
    3.
    发明申请
    Modulation of T cell signaling threshold and T cell sensitivity to antigens 有权
    调节T细胞信号阈值和T细胞对抗原的敏感性

    公开(公告)号:US20080200416A1

    公开(公告)日:2008-08-21

    申请号:US11977506

    申请日:2007-10-24

    IPC分类号: A61K31/70 C12N15/87 C12Q1/68

    摘要: MicroRNAs (miRNAs) are a diverse and abundant class of ˜22-nucleotide (nt) endogenous regulatory RNAs that play a variety of roles in animal cells by controlling gene expression at the posttranscriptional level. Increased miR-181a expression in mature T cells is shown to cause a marked increase in T cell activation and augments T cell sensitivity to peptide antigens. Moreover, T cell blasts with higher miR-181a expression become reactive to antagonists. The effects of miR-181a on antigen discrimination are in part achieved by dampening the expression of multiple negative regulators in the T cell receptor (TCR) signaling pathway, including PTPN22 and the dual specificity phosphatases DUSP5 and DUSP6. This results in a reduction in the TCR signaling threshold, thus quantitatively and qualitatively enhancing T cell sensitivity to antigens.

    摘要翻译: 微RNA(miRNA)是一种多样且丰富的〜22个核苷酸(nt)内源性调控RNA,通过控制转录后水平的基因表达,在动物细胞中发挥各种作用。 在成熟T细胞中增加的miR-181a表达显示引起T细胞活化的显着增加并增加T细胞对肽抗原的敏感性。 此外,具有较高miR-181a表达的T细胞爆发成为对拮抗剂的反应性。 miR-181a对抗原鉴别的影响部分通过抑制T细胞受体(TCR)信号通路中多种负调节因子的表达,包括PTPN22和双特异性磷酸酶DUSP5和DUSP6来实现。 这导致TCR信号阈值的降低,从而定量和定性地增强T细胞对抗原的敏感性。

    Modulation of T cell signaling threshold and T cell sensitivity to antigens
    4.
    发明授权
    Modulation of T cell signaling threshold and T cell sensitivity to antigens 有权
    调节T细胞信号阈值和T细胞对抗原的敏感性

    公开(公告)号:US07803784B2

    公开(公告)日:2010-09-28

    申请号:US11977506

    申请日:2007-10-24

    摘要: MicroRNAs (miRNAs) are a diverse and abundant class of ˜22-nucleotide (nt) endogenous regulatory RNAs that play a variety of roles in animal cells by controlling gene expression at the posttranscriptional level. Increased miR-181a expression in mature T cells is shown to cause a marked increase in T cell activation and augments T cell sensitivity to peptide antigens. Moreover, T cell blasts with higher miR-181a expression become reactive to antagonists. The effects of miR-181a on antigen discrimination are in part achieved by dampening the expression of multiple negative regulators in the T cell receptor (TCR) signaling pathway, including PTPN22 and the dual specificity phosphatases DUSP5 and DUSP6. This results in a reduction in the TCR signaling threshold, thus quantitatively and qualitatively enhancing T cell sensitivity to antigens.

    摘要翻译: 微RNA(miRNA)是一种多样且丰富的〜22核苷酸(nt)内源性调控RNA,通过控制转录后水平的基因表达,在动物细胞中发挥各种作用。 在成熟T细胞中增加的miR-181a表达显示引起T细胞活化的显着增加并增加T细胞对肽抗原的敏感性。 此外,具有较高miR-181a表达的T细胞爆发成为对拮抗剂的反应性。 miR-181a对抗原鉴别的影响部分通过抑制T细胞受体(TCR)信号通路中多种负调节因子的表达,包括PTPN22和双特异性磷酸酶DUSP5和DUSP6来实现。 这导致TCR信号阈值的降低,从而定量和定性地增强T细胞对抗原的敏感性。