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Anti-I-A/I-E (MHCII)-PE/Cy7

Company: BioLegend
Catalog#: 107630
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Direct Reprogramming of Mouse Embryonic Fibroblasts to Conventional Type 1 Dendritic Cells by Enforced Expression of Transcription Factors
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2020-05-20
[Abstract]  Ectopic expression of transcription factor combinations has been recently demonstrated to reprogram differentiated somatic cells towards the dendritic cell (DC) lineage without reversion to a multipotent state. DCs have the ability to induce potent and long-lasting adaptive immune responses. In particular, conventional type 1 DCs (cDC1s) excel on antigen cross-presentation, a critical step for inducing CD8+ T cell cytotoxic responses. The rarity of naturally occurring cDC1s and lack of in vitro methodologies for the generation of pure cDC1 populations strongly hinders the study of cDC1 lineage specification and function. Here, we describe a protocol for the generation of induced DCs (iDCs) by lentiviral-mediated expression of the transcription factors PU.1, IRF8 and ... [摘要]  [摘要] 转录因子组合的异位表达最近被证明可以将分化的体细胞重编程为树突状细胞(DC)谱系,而不会回复到多能状态。DC具有诱导有效和持久的适应性免疫应答的能力。在特定的常规类型1的DC(cDC1s)练成抗原交叉呈递,用于诱导CD8的关键步骤+ T细胞的细胞毒性应答。天然存在的cDC1的稀有性和缺乏用于生成纯cDC1群体的体外方法论,严重阻碍了对cDC1谱系规格和功能的研究。在这里,我们描述了用于生成感应DC(iDC)的协议 慢病毒介导的转录因子PU.1,IRF8和BATF3在小鼠胚胎成纤维细胞中的表达。iDC 在9天内获得DC形态,cDC1表型和转录特征。使用此协议生成的iDC 具有对炎症刺激,吞噬死细胞,将抗原加工并交叉呈递给CD8 + T细胞的功能。DC重新编程提供了一个简单易处理的系统,可以生成大量的cDC1类细胞用于高内涵筛选,从而开辟了新途径,可以更好地了解cDC1的规格和功能。将来,在成纤维细胞中忠实诱导cDC1命运可能会导致产生患者特定的疫苗接种DC。

[背景技术树突状细胞(DC)是专业的抗原呈递细胞,专门用于识别,加工和呈递T细胞抗原,在诱导适应性免疫应答和免疫记忆中起关键作用(Me rad 等,2013)。DC可以分为4个主要子集:浆细胞样DC(pDC ),大量1型干扰素的产生者,循环单核细胞衍生的单核细胞衍生DC 和常规DC(cDC ...

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