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-  2017 

皮肤炎症启动过程中树突状细胞的迁移及其诱导初始 T 细胞特异性增殖的数值模拟

DOI: doi:10.7507/1001-5515.201702050

Keywords: 树突状细胞, 皮肤炎症, 数学模型, 常微分方程

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Abstract:

树突状细胞(DCs)是目前已知的功能最为强大的专职抗原提呈细胞(APCs),在启动和放大固有免疫以及适应性免疫应答中起到重要的作用。在其发挥免疫功能的过程中,DCs 的迁移能力以及 DCs 活化初始 T 细胞的能力与其发挥免疫功能的效率有着密切关系。然而,由于免疫系统的复杂性,对于皮肤炎症引起 DCs 免疫应答的过程中细胞数量的动态变化依然知之甚少。因此,本研究利用数学模型对该过程进行数值模拟以及动态预测。通过设置函数和参数初始条件并构建常微分方程,模拟炎症引起免疫应答的初始阶段。结果显示,该方程能够较好地模拟 DCs 的迁移以及诱导初始 T 细胞特异性增殖的免疫应答过程,符合实际情况下免疫应答的持续时间、DCs 和 T 细胞的增殖率和迁移率等生理学特性,并且能够对不同时间点 DCs 与 T 细胞的数量进行预测,可为研究 DCs 的免疫学功能提供理论参考,进一步为临床治疗免疫相关疾病提供实践指导

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