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DOI: 10.3791/59621-v
Jorge Ibañez-Vega*1, Danitza Fuentes*1, Jonathan Lagos1,2, Jorge Cancino3, María Isabel Yuseff1
1Laboratory of Immune Cell Biology, Department of Cellular and Molecular Biology,Pontificia Universidad Católica de Chile, 2Faculty of Medicine,Pontificia Universidad Católica de Chile, 3Centro de Investigaciones en Biología Celular y Biomedicina, Facultad de Ciencia,Universidad San Sebastián
Please note that some of the translations on this page are AI generated. Click here for the English version.
本文描述了在IS形成过程中描述B淋巴细胞细胞极化事件的两种方法。第一,涉及细胞器招募的定量和突触膜的细胞骨架重组。第二种是生化方法,用于描述中心体组成的变化,这种物质对免疫突触发生极化。
在本次综述中,我们将讨论用于研究细胞器定位和组成的成像和生化技术,以及免疫突触形成过程中观察到的细胞骨架重新排列。主动重塑的初始阶段允许B细胞增加细胞表面,并最大限度地提高在突触收集的抗原BCR复合物的数量。另一方面,当地招募的叶酸体,连同突触膜的中体,可以耦合到利索索姆分泌物,这是众所周知的,有助于提取固定抗原。
吸收抗原在内糖体隔间内进一步加工成肽,这些肽被加载到MHC II类分子上,以呈现给T帮助细胞。因此,研究与免疫突触相关的细胞体动力学对于理解B细胞如何完全激活至关重要。用固定抗原激活的B细胞的免疫荧光使我们能够遵循不同的细胞成分,以及如何招募它们到免疫突触。
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