在人类胰腺癌中,Ca2+-Affinitive和Non-Ca2+-Affinitive的Synaptotagmins
Xuanang Wu1, Bo Gao2, Kun Xiao3
1Neuroscience Research Center, Institute of Mitochondrial Biology and Medicine, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710000, Shaanxi, China. anicqnumber@126.com.
Neuromolecular medicine
|July 17, 2025
概括
突触胺 (Syts) 是重要的Ca2+传感器. 这项研究揭示了它们在泛癌症中的多样性作用,将表达和甲基化变化与瘤进展和免疫透联系起来,提供了临床潜力.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 生物信息学是一种生物信息学.
背景情况:
- 突触胺 (Syts) 是细胞分泌的关键的Ca2+传感器.
- 一半的Syt异型是非Ca2+亲缘关系的,并且与神经系统疾病和癌症有关.
- 缺乏对所有Syt异构体进行全面的泛癌分析.
研究的目的:
- 综合分析所有人类Syt异型在泛癌的表达,酸化和甲基化概况.
- 研究Syt形状与基因组异质性,瘤干和免疫透的相关性.
- 揭示Syt异型在瘤进展中的临床潜力和作用.
主要方法:
- 利用信息学工具和蛋白质组/转录基因组数据库进行癌分析.
- 检查了所有人类细胞的表达,酸化和CpG甲基化概况.
- 与基因组,茎状和免疫透数据相关的Syt配置文件.
主要成果:
- 在Syt异型与各种癌症类型,病理阶段和预后之间发现了显著的关联.
- 在质母细胞瘤/低度质瘤 (GBM/LGG) 和垂体部分前垂体腺 (PCPG) 中观察到的Syts显现的显著变化.
- 具有Ca2+亲和性和非Ca2+亲和性Syt组显示相反的表达和甲基化趋势,表明不同的癌症机制.
结论:
- 在泛癌分析中,Syt异构体表现出显著的临床潜力.
- Ca2+-affinitive Syts可能参与RNA剪接,而非Ca2+-affinitive Syts与NF-κB信号传递和免疫调节有关.
- Syt11与免疫透有着强烈的关联,突出显示了它在癌症免疫中的作用.
相关概念视频
Catenins
2.4K
Catenins are characterized by multiple binding domains and dynamic structures that allow them to function as linker proteins in cell junction complexes. All catenins, except α-catenin, contain a characteristic protein sequence called the armadillo repeat and are therefore also called armadillo proteins.
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
2.4K
Calmodulin-dependent Signaling
5.3K
Calmodulin (CaM) is a calcium-binding protein in eukaryotes that controls various calcium-regulated cellular processes. It has four calcium-binding sites that bind calcium to form the calcium-calmodulin ( Ca2+-CaM) complex. GPCR stimulation increases the calcium levels in the cells that bind to CaM and induces a conformational change.
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
5.3K
Immunoglobulin-like Cell Adhesion Molecules
3.4K
Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
3.4K
Cadherins in Tissue Organization
3.1K
The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...
Cell Sorting During Development
Cell sorting plays an...
3.1K


