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    • 3. 发明申请
    • TOLEROGENIC PLASMACYTOID DENDRITIC CELLS CO-EXPRESSING CD8-ALPHA AND CD8-BETA AND METHODS OF INDUCING THE DIFFERENTIATION OF REGULATORY T CELLS USING SAME
    • 共表达CD8-ALPHA和CD8-BET的广谱PLASMACYTOID DENDRITIC细胞和使用它们诱导调节性T细胞分化的方法
    • WO2012158556A1
    • 2012-11-22
    • PCT/US2012/037628
    • 2012-05-11
    • UNIVERSITY OF SOUTHERN CALIFORNIALOMBARDI, VincentAKBARI, Omid
    • LOMBARDI, VincentAKBARI, Omid
    • C12N5/0784A61K39/00
    • C12N5/064A61K39/0008A61K39/001A61K39/39A61K2039/5154C12N5/0637C12N2501/58
    • This invention discloses an unexpected discovery that plasmacytoid dendritic cells (pDCs) may be segregated into immunogenic or tolerogenic species based on novel biomarkers discovered herein. Exemplary biomarkers include CD8α + β + , CD8α + β - , CD8α - β - Clq, and IL- 9R. For example, pDCs with CD8α + β + , CD8α + β - are tolerogenic and CD8α - β - is immunogenic. Also disclosed are isolated pDCs, compositions comprising the pDCs, methods for isolating the pDCs, methods for treating immune-hyper-reactivity, such as airway hyper-reactivity, food allergy, asthma, and autoimmune disorders, by using compositions containing tolerogenic antigen presenting cells, preferably pDCs disclosed herein. Also disclosed are methods for identifying tolerogenic antigen presenting cells by using one or more novel biomarkers disclosed herein, including RALDH expression, CD8α, GD8β, Clqa, Clqc, and IL-9R. Also disclosed are methods for inducing Treg cells by using the pDCs disclosed herein.
    • 本发明公开了一种意想不到的发现,基于本文发现的新型生物标志物,浆细胞样树突状细胞(pDC)可以分离成免疫原性或耐受性物种。 示例性生物标志物包括CD8a +ß+,CD8a +ß-,CD8a-β-Clq和IL-9R。 例如,具有CD8a +ß+,CD8a +β的pDC具有致敏性,CD8a-β是免疫原性的。 还公开了分离的pDC,包含pDC的组合物,分离pDC的方法,用于治疗免疫超反应性的方法,例如气道高反应性,食物过敏,哮喘和自身免疫性疾病,通过使用含有耐受性抗原呈递细胞的组合物 ,优选在此公开的pDC。 还公开了通过使用本文公开的一种或多种新型生物标志物来鉴定耐受性抗原呈递细胞的方法,包括RALDH表达,CD8a,GD8β,Clqa,Clqc和IL-9R。 还公开了通过使用本文公开的pDC诱导Treg细胞的方法。