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Cancer Research
使用基于电穿孔的质粒DNA递送对 体内 脑肿瘤进行建模,以代表患者突变特征
使用基于电穿孔的质粒DNA递送对 体内 脑肿瘤进行建模,以代表患者突变特征
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JoVE Journal Cancer Research
Modeling Brain Tumors In Vivo Using Electroporation-Based Delivery of Plasmid DNA Representing Patient Mutation Signatures

使用基于电穿孔的质粒DNA递送对 体内 脑肿瘤进行建模,以代表患者突变特征

Full Text
3,029 Views
04:01 min
June 23, 2023

DOI: 10.3791/65286-v

Katie B. Grausam*1, Joshua J. Breunig*1,2,3,4,5

1Board of Governor’s Regenerative Medicine Institute,Cedars-Sinai Medical Center, 2Center for Neural Sciences in Medicine,Cedars-Sinai Medical Center, 3Department of Biomedical Sciences,Cedars-Sinai Medical Center, 4Samuel Oschin Comprehensive Cancer Institute,Cedars-Sinai Medical Center, 5Department of Medicine, David Geffen School of Medicine,University of California, Los Angeles

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Please note that some of the translations on this page are AI generated. Click here for the English version.

利用由常见患者突变驱动的免疫功能正常的本土肿瘤模型进行临床前测试对于免疫治疗测试至关重要。该协议描述了一种使用基于电穿孔的质粒DNA递送生成脑肿瘤小鼠模型的方法,这些质粒DNA代表常见的患者突变,从而提供准确,可重复和一致的小鼠模型。

该技术的重点是在免疫功能正常的小鼠模型中模拟胶质母细胞瘤的患者突变谱,以及这些不同的突变如何影响肿瘤微环境和对治疗的反应。基因组和单细胞测序确定胶质母细胞瘤的遗传驱动突变与癌症和肿瘤微环境组成部分(如免疫细胞群)的侵袭性有关。临床前试验中的胶质母细胞瘤小鼠模型在免疫疗法方面取得了巨大成功,取得了治愈效果,治疗后没有肿瘤生长的迹象。

然而,这些影响并未反映在患者的结局或生存率上。该方案概括了免疫活性小鼠模型中胶质母细胞瘤的患者肿瘤突变谱,允许逐渐的本土肿瘤生长并更好地预测治疗效果,尤其是免疫疗法。该建模系统通过对免疫功能正常的小鼠进行电穿孔将DNA质粒整合到基因组中。

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建模 脑肿瘤 体内 基于电穿孔的递送 质粒DNA 患者突变特征 肿瘤模型 临床前测试 免疫疗法 小鼠模型 肿瘤群体 免疫细胞群 治疗反应 原位移植 已建立的肿瘤细胞系 个性化表示 患者特异性肿瘤突变 DNA 构建体 神经前体细胞 (NPC) 双重组酶介导的盒式交换 (MADR) 的嵌合分析 体细胞诱变 驱动突变 新生小鼠幼崽 分裂细胞 侧脑室 DNA 质粒显微注射 转座子 CRISPR 定向 SgRNA

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