骨髓母细胞瘤显示初级乳毛维护和CEP164过度表达
R Miyazaki1, H Kawasaki2, H Kato1
1Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Journal of dental research
|February 24, 2026
概括
氨基母细胞瘤 (AB) 独特地保留了原发性纤毛 (PC),与口腔状细胞癌 (OSCC) 不同. CEP164过度表达驱动这种情况,建议PC和CEP164作为AB的潜在诊断和治疗点.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 口腔病理学 口腔病理学
背景情况:
- 骨髓母细胞瘤 (AB) 是一种局部侵袭性瘤,复发率高.
- 主要毛 (PC) 的作用,关键的信号中心,在AB基本上是未知的.
- 大多数人类恶性瘤显示PC减少或不存在,与AB的潜在独特状状态形成鲜明对比.
研究的目的:
- 为了调查PC在乳腺母细胞瘤中的存在和特征.
- 为了比较PC状态之间的乳腺母细胞瘤和口腔状细胞癌 (OSCC).
- 为了确定分子机制,包括CEP164和刺信号,在AB中PC存在的基础.
主要方法:
- 42个AB和41个OSCC案件的回顾性观察研究.
- 免疫组织化学,免疫光和超结构分析用于PC检测.
- 基因表达分析 (mRNA,蛋白质) 对于Hh通路组件和纤维生成基因 (CEP164).
主要成果:
- 在所有乳腺母细胞瘤 (AB) 中始终检测到初级毛 (PC),但在口腔状细胞癌 (OSCC) 中没有.
- (Hh) 信号通路组件 (GLI1,SHH) 在AB中被激活.
- CEP164在AB中被选择性上调,促进了PC的形成,并表明其在AB细胞生成中的作用.
结论:
- 氨基母细胞瘤独特地保持了功能性初级毛 (PC).
- CEP164是AB中PC存在的关键媒介,为瘤生物学提供了洞察力.
- PC和CEP164代表了乳腺母细胞瘤的潜在诊断标记物和治疗点.
相关概念视频
Microtubules in Signaling
2.2K
The primary cilium, made up of microtubules, acts as antennae on the cell surfaces for relaying external stimuli into the cells. These fine hair-like structures are present, generally one per cell. These are non-motile cilia in a 9+0 microtubules arrangement, where the central pair of microtubules are absent. The primary cilia arise from the basal body embedded in the cell membrane. Intraflagellar transport (IFT) carries requisite proteins from the cytoplasm to the cilium because the primary...
2.2K
The Retinoblastoma Gene
4.8K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
4.8K
Abnormal Proliferation
5.3K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.3K
Anaphase Promoting Complex
3.5K
The stepwise destruction of specific proteins is necessary for the progression and completion of the cell cycle. Such proteins are ubiquitinated by ubiquitin ligases and then subsequently destroyed by the proteasome. The SCF (Skp1/Cullin/F-box) and the anaphase-promoting complex (APC) are two important ubiquitin ligases involved in cell cycle progression. While SCF is active throughout the cell cycle, APC gets activated during metaphase to anaphase transition. Cdc20 or Cdh1 binds to APC and...
3.5K
Cell Motility through Blebbing
2.6K
Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
Blebbing Through the Matrix
In multicellular...
Blebbing Through the Matrix
In multicellular...
2.6K
Cadherins in Tissue Organization
4.3K
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...
4.3K


