A tissue-based draft map of the murine MHC class I immunopeptidome.

A tissue-based draft map of the murine MHC class I immunopeptidome.
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DOI:
10.1038/sdata.2018.157
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发表时间:
2018-08-07
期刊:
影响因子:
9.8
通讯作者:
Caron E
Caron E
中科院分区:
综合性期刊2区
文献类型:
--
作者:
Schuster H;Shao W;Weiss T;Pedrioli PGA;Roth P;Weller M;Campbell DS;Deutsch EW;Moritz RL;Planz O;Rammensee HG;Aebersold R;Caron E

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由主要组织相容性复合体(MHC)I类分子呈递给CD 8 + T细胞的大量肽被称为MHC I类免疫肽组。尽管MHC I类免疫肽组在哺乳动物中普遍存在,并且代表免疫系统的关键组分,但在任何物种中,关于其在体内大多数组织和器官中的组成知之甚少。我们应用质谱(MS)技术,起草了第一份基于组织的健康小鼠MHC I类免疫肽组图谱。从C57 BL/6小鼠的19个正常组织中提取肽,并制备用于MS注射,从而在图谱中鉴定和注释了总数为28,448个高置信度的H2 Db/Kb相关肽。该图谱提供了初步的定性数据,以探索免疫肽组的组织特异性,并作为指导,以确定潜在的肿瘤相关抗原从各种癌症模型。我们的数据通过PRIDE(PXD 008733)、SystemMHC Atlas(SYSMHC 00018)和SWATH Atlas共享。我们预计,这个独特的数据集将在未来得到扩展,并将在基础和转化免疫学中得到广泛应用。
The large array of peptides presented to CD8+ T cells by major histocompatibility complex (MHC) class I molecules is referred to as the MHC class I immunopeptidome. Although the MHC class I immunopeptidome is ubiquitous in mammals and represents a critical component of the immune system, very little is known, in any species, about its composition across most tissues and organs in vivo. We applied mass spectrometry (MS) technologies to draft the first tissue-based atlas of the murine MHC class I immunopeptidome in health. Peptides were extracted from 19 normal tissues from C57BL/6 mice and prepared for MS injections, resulting in a total number of 28,448 high-confidence H2Db/Kb-associated peptides identified and annotated in the atlas. This atlas provides initial qualitative data to explore the tissue-specificity of the immunopeptidome and serves as a guide to identify potential tumor-associated antigens from various cancer models. Our data were shared via PRIDE (PXD008733), SysteMHC Atlas (SYSMHC00018) and SWATH Atlas. We anticipate that this unique dataset will be expanded in the future and will find wide applications in basic and translational immunology.
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