核丁二抑制了胃癌中的衰老
Yu Ishibashi1,2, Takashi Itoh1,2, Yasuko Oguri1
1Department of Pathology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0374, Japan.
Scientific reports
|May 17, 2024
概括
核丁2 (NUCB2) 蛋白在胃癌 (GC) 中被上调,促进瘤入侵和转移. 抑制NUCB2会诱导衰老,减少GC细胞的增殖和迁移,这表明NUCB2是潜在的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 胃癌 (GC) 仍然是一个重大的全球健康挑战.
- 了解驱动GC进展的分子机制对于开发有效疗法至关重要.
- 核丁2 (NUCB2) 是一种多功能蛋白质,在癌症中起到很大程度上尚未探索的作用.
研究的目的:
- 调查核丁二 (NUCB2) 在胃癌 (GC) 进展中的作用.
- 在GC中将NUCB2表达水平与临床病理特征和患者存活率相关联.
- 阐明NUCB2影响GC表型的细胞机制.
主要方法:
- 免疫组织化学 (IHC) 和现场杂交用于评估150个GC组织和21个匹配的正常组织中的NUCB2表达.
- 分析了NUCB2表达与临床病理因素和无进展生存率相关.
- 在GC细胞系中研究了NUCB2功能,使用淘汰模式来评估增殖,亡,迁移和衰老.
- 评估了NUCB2对GC进展的影响在患者队列中,包括和没有术后化疗.
主要成果:
- 与正常组织相比,NUCB2在GC组织中被转录上调.
- 高NUCB2表达与晚期瘤入侵,淋巴血管入侵,淋巴结转移和晚期临床阶段有显著的相关性.
- 在GC患者,特别是那些接受化疗的患者中,NUCB2作为不利的无进展生存的独立预测因素.
- 在GC细胞系中NUCB2淘汰抑制了增殖,亡和迁移,诱导细胞衰老.
结论:
- NUCB2是胃癌进展的关键驱动因素,与积极的临床病理特征和不良预后有关.
- 抑制NUCB2促进细胞衰老,从而抑制瘤生长,入侵和转移.
- NUCB2代表了改善胃癌的治疗结果的潜在治疗标,特别是与化疗结合使用.
更多相关视频
06:00Through the Looking Glass: Time-lapse Microscopy and Longitudinal Tracking of Single Cells to Study Anti-cancer Therapeutics
Published on: May 14, 2016
11.0K
04:26Efficient Gene Knockdown in the Liver via Intrasplenic Injection of Adeno-Associated Virus Serotype 8 (AAV8)-Delivered Small Hairpin RNA
Published on: November 1, 2024
335
相关概念视频
Negative Regulator Molecules
35.3K
Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
35.3K
Replicative Cell Senescence
3.6K
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
3.6K
Inhibition of Cdk Activity
4.7K
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
4.7K
The Retinoblastoma Gene
4.1K
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,...
4.1K
The Nucleolus
8.8K
The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...
8.8K
Abnormal Proliferation
4.5K
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...
4.5K
