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    • 2. 发明申请
    • ANTIGEN DELIVERY DEVICE AND METHOD
    • 抗原递送装置和方法
    • WO2015028541A1
    • 2015-03-05
    • PCT/EP2014/068236
    • 2014-08-28
    • PCI BIOTECH AS
    • HØGSET, AndersWALDAY, Per EdvardEIVINDVIK, Kristin
    • A61N5/06A61K39/00A61K9/00
    • A61N5/062A61B2017/00172A61K39/00A61K2039/55555A61M37/0015A61M2037/0023A61N2005/0626A61N2005/0627A61N2005/0629A61N2005/0645
    • A device (1) for activating light-induced rupture of endocytic vesicles in target cells of a patient so as to effect delivery of an administered antigen to cytosol in the target cells, is described. The device is adapted to be worn by a patient over a region of skin where an antigen and a photosensitising agent have been or are to be administered. The device comprises a rear surface (11) that is rounded or otherwise configured to be worn against the patient's skin. It has a retaining part for retaining the device in place over the region of the patient's skin during an activation cycle, which may be a strap (3a, 3b) or an adhesive layer. A light source, such as an LED, is arranged to illuminate the patient's skin from the rear of the device. A control system is configured to vary the output of the light source with respect to time in accordance with a pre-configured output sequence, which includes an initial stage where the output of the light source is set to be zero or generally below that which could deliver a light dose that can activate light-induced rupture of endocytic vesicles (so as to allow time for the antigen and photosensitising agent to reach the target cells), and a later stage where the output is set to deliver a light dose which can activate light-induced rupture of the endocytic vesicles (for effecting the delivery of the administered antigen to the cytosol of the target cells).
    • 描述了用于在患者的靶细胞中激活内源性囊泡的光诱导破裂以便将施用的抗原递送到靶细胞中的细胞质的装置(1)。 该装置适于在已经或将要施用抗原和光敏剂的皮肤区域上由患者佩戴。 该装置包括后表面(11),其被倒圆或以其它方式构造成与患者皮肤相对地佩戴。 它具有保持部件,用于在激活循环期间将装置保持在患者皮肤区域上的适当位置,激活循环可以是带(3a,3b)或粘合剂层。 诸如LED的光源被布置成从装置的后部照亮患者的皮肤。 控制系统被配置为根据预先配置的输出序列来改变光源相对于时间的输出,其包括初始阶段,其中光源的输出被设置为零或大致低于可能 提供可以激活光诱导的内吞囊泡破裂的轻剂量(从而允许抗原和光敏剂到达靶细胞的时间),以及输出被设置为递送可以激活的光剂量的后期 内吞细胞的光诱导破裂(用于将所施用的抗原递送至靶细胞的胞质溶胶)。