相关实验视频

Updated: Jan 31, 2026

Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies

Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies

Published on: September 15, 2023

作为胃癌生物标志物的PIK3R1与CD73相关⁺ Treg介导的免疫抑制⁺

Bu Zou¹, Yi-En Xu², Hui-Chan He³

¹Department of Head and Neck, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China.

Oncology research

|January 30, 2026

概括

氨酸-3-酶调节子单元1 (PIK3R1) 在胃癌 (GC) 中过度表达,与预后不佳和免疫细胞透变化相关. 准PIK3R1可能为GC患者提供新的治疗策略.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
免疫学免疫学免疫学

背景情况:

胃癌 (GC) 是一个重大的全球健康挑战.
氨酸-3-酶调控子单元1 (PIK3R1) 在GC进展中的作用尚未完全理解.
PIK3R1是PI3K信号通路的一个关键调节子单元.

研究的目的:

为了研究PIK3R1在GC中的预后意义.
探索PIK3R1表达与瘤免疫微环境之间的关联.
为GC患者开发一个结合PIK3R1.1.的预后模型.

主要方法:

在GC患者数据集 (TCGA,SYSUCC) 中分析PIK3R1表达.
使用PIK3R1和临床参数构建预后模型.
通过免疫组织化学和单细胞RNA测序评估瘤免疫微环境.
试验室试验评估PIK3R1对GC细胞行为的影响.

主要成果:

在GC组织中,PIK3R1过度表达,这与侵略性特征和不良结果有关.
一个整合PIK3R1和临床病理因素的诺米图预测了预后.
在体外,PIK3R1 knockdown 降低了GC细胞的增殖和迁移.
高PIK3R1表达与增加的Foxp3+和CD73+T细胞透相关.
低PIK3R1和CD73+T细胞透预测了更好的生存率.

结论:

过度表达PIK3R1表明GC的预后不佳,并影响免疫细胞透.
结合PIK3R1和CD73表达的新型预后模型有助于风险分层.
这个模型有可能在GC中开发个性化治疗策略.

关键词:

分化集群 73 73 分化集群胃癌胃癌是一种胃癌.免疫微观环境免疫微环境这个名字是名ogramogram.酸-3-酶调节子单元 1 1

更多相关视频

Elastic Staining on Paraffin-embedded Slides of pT3N0M0 Gastric Cancer Tissue

Elastic Staining on Paraffin-embedded Slides of pT3N0M0 Gastric Cancer Tissue

Published on: May 1, 2019

Establishment of Gastric Cancer Patient-derived Xenograft Models and Primary Cell Lines

Establishment of Gastric Cancer Patient-derived Xenograft Models and Primary Cell Lines

Published on: July 19, 2019

相关概念视频

Covalently Linked Protein Regulators

Covalently Linked Protein Regulators

Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....

Gastric Motility

Gastric Motility

Gastric motility is the coordinated contraction and relaxation of stomach muscles that convert ingested food into chyme, a semi-liquid substance ready for further digestion in the intestines. The process begins with the vagus nerve inducing the relaxation of the smooth muscles in the fundus and body of the stomach, allowing these regions to expand and accommodate up to approximately 1.5 liters of food and liquid.
Peristaltic Waves and Chyme Formation
Upon food entry, the stomach initiates...

Gastric Emptying

Gastric Emptying

Gastric emptying occurs when the stomach gradually releases chyme into the duodenum. When the stomach is distended, it triggers the release of gastrin, a hormone that promotes gastric acid secretion to aid in digestion. Additionally, stomach distension contributes to peristaltic waves that propel gastric contents toward the pyloric region. The gastroenteric reflex, on the other hand, primarily stimulates peristalsis in the intestines, facilitating the movement of contents further along the...

X-linked Traits

X-linked Traits

In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.

Gastric Phase of Digestion

Gastric Phase of Digestion

The gastric phase of digestion begins as soon as food enters the stomach. The incoming food bolus triggers neural and hormonal mechanisms, which last approximately 3 to 4 hours. During this phase, the stomach undergoes significant changes to prepare the food for further digestion and absorption.
When food enters the stomach, it stretches the stomach walls and activates stretch receptors. This triggers local reflexes of the enteric nervous system, mediated through the myenteric plexus. These...

Sex-linked Disorders

Sex-linked Disorders

Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.