CrypticProteinDB:一个由蛋白质组和免疫组衍生的非正规癌症蛋白质的综合数据库
Ghofran Othoum1, Christopher A Maher1,2,3
1Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63108, USA.
NAR cancer
|June 5, 2023
概括
这项研究揭示了翻译的非正典开放阅读框架 (ncORF) 在癌症中普遍存在,为癌症免疫治疗提供了新的点. 研究人员从这些神秘的蛋白质中确定了成千上万的新和潜在的新抗原.
科学领域:
- 在瘤学瘤学.
- 蛋白质基因组学是什么
- 免疫学 免疫学 免疫学
背景情况:
- 从替代阅读框架中翻译的非正规蛋白质有助于细胞过程.
- 这些蛋白质是癌症免疫治疗点的低估来源,原因是瘤特异性表达或新抗原生成.
研究的目的:
- 对新型进行最大规模的综合蛋白质基因组分析,以评估癌症中非正规开放阅读框架 (ncORF) 的流行率.
- 来识别来自非正规蛋白质的新型癌症免疫标.
主要方法:
- 在14种癌症类型中对900多名患者的蛋白质组和26个免疫组数据集进行了综合蛋白质基因组分析.
- 对全细胞蛋白质体和免疫体进行分析,以确定ncORFs的支持.
- 从非正规蛋白质中发现表位和新抗原.
主要成果:
- 在蛋白质编码基因中发现了9760个ncORF,在非编码RNA中发现了12811个ncORF.
- 6486个ncORF来自差异表达的基因,而340个在多种癌症中无处不在的翻译.
- 来自非正规蛋白质的34个表位和8个新抗原被发现是潜在的癌症免疫标.
结论:
- 翻译的非正规蛋白在癌症中很普遍.
- 这项研究为优先考虑新型癌症免疫点提供了有价值的资源,并得到了多omics数据的支持.
- 这些发现突显了非正规蛋白在癌症免疫治疗中的潜力.
相关概念视频
Protein Networks
4.0K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.0K
Proteomics
7.5K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.5K
Protein-protein Interfaces
12.6K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
12.6K
Peptide Identification Using Tandem Mass Spectrometry
6.6K
Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
6.6K
Cancer-Critical Genes I: Proto-oncogenes
9.0K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
9.0K


