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    • 61. 发明授权
    • Stem cell mediated treg activation/expansion for therapeutic immune modulation
    • 干细胞介导的treg活化/扩增用于治疗性免疫调节
    • US08241621B2
    • 2012-08-14
    • US11959440
    • 2007-12-18
    • Thomas E. Ichim
    • Thomas E. Ichim
    • C12N5/071C12N5/077C12N5/0783
    • C12N5/0667A61K2035/122C12N2501/22C12N2501/26
    • Disclosed are cells, methods of modulating cells, and therapeutic uses of the cells for the immune modulation of mammals in need thereof. Immune modulation including alteration of cytokine profile, cytotoxic activity, antibody production and inflammatory states is achieved through the administration of various cell types that have been unmanipulated or manipulated in order to endow specific biological activity. Cellular subsets and administration of the subsets in combination with various agents are also provided. One embodiment teaches the previously unknown finding that adipose tissue derived mononuclear cells contain T cells with immune regulatory properties that alone or synergistically with various stem cells induce immune modulation upon administration. Another embodiment is the finding that stimulation of stem cell activation results in stem cell secondary activation of immune modulatory cells, one type which is T regulatory cells (Tregs). One specific embodiment involves extraction of a heterogenous stem cell pool, which contains T regulatory cells, treatment in culture of the population with agents known to stimulate stem cell activation, then subsequent extraction and administration of the purified Tregs. Other embodiments include expansion of Tregs in the presence of antigen in order to generate anti-specific Tregs.
    • 公开了细胞,调节细胞的方法和细胞的治疗用途,用于有需要的哺乳动物的免疫调节。 包括细胞因子分布的改变,细胞毒性活性,抗体产生和炎症状态的免疫调节是通过给予不被操纵或操纵以赋予特定生物学活性的各种细胞类型来实现的。 还提供细胞子集和子集合与各种试剂的组合。 一个实施方案教导了以前未知的发现,脂肪组织衍生的单核细胞含有具有免疫调节特性的T细胞,其与各种干细胞单独或协同地在给药时诱导免疫调节。 另一个实施方案是发现干细胞活化的刺激导致免疫调节细胞的干细胞二次激活,一种是T调节细胞(Treg)。 一个具体实施方案涉及提取含有T调节细胞的异源干细胞池,用已知刺激干细胞活化的试剂,然后随后提取和施用纯化的Treg进行群体培养的处理。 其他实施方案包括在抗原存在下扩增Treg以产生抗特异性Treg。