相关实验视频
Updated: Sep 14, 2025

06:01
A Genetically Engineered Mouse Model of Sporadic Colorectal Cancer
Published on: July 6, 2017
9.6K
克拉斯突变结肠癌的临床病理特征:一个分析横截面研究
Edgar Joaquin Cortes-Torres1, Heli Hernandez-Gonzalez1, Kathia Dayana Morfin-Meza2
1Instituto Mexicano del Seguro Social (IMSS), Unidad Medica de Alta Especialidad (UMAE), Departamento de Cirugia General, Centro Medico Nacional de Occidente, Guadalajara, Jalisco, Mexico.
Gastroenterology research
|July 21, 2025
概括
患有基尔斯顿大鼠肉瘤瘤基因 (KRAS) 突变的结肠癌患者经常出现西格状结肠瘤. 在KRAS阳性病例中同时发生的BRAF突变表明影响疾病进展的分子相互作用.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 结肠癌是全球重要的健康问题.
- 基尔斯顿大鼠肉瘤瘤基因 (KRAS) 突变在35-45%的结直肠癌 (CRC) 患者中流行.
- KRAS突变是CRC检测,预后和治疗的关键生物标志物.
研究的目的:
- 为了确定具有KRAS突变的结肠癌患者的临床病理学特征.
- 探索KRAS突变与其他遗传改变 (如BRAF突变) 之间的关系.
- 了解KRAS突变在结肠癌中的临床影响.
主要方法:
- 在CRC患者身上进行了一项分析横截面研究.
- 收集的数据包括患者人口统计,瘤位置,KRAS和BRAF突变状态以及TNM阶段.
- 进行了统计分析,以确定变量之间的相关性.
主要成果:
- 该研究包括51名患者,平均年龄为61.4岁.
- 在35%的患者中发现了KRAS突变,在32%的患者中发现了BRAF突变.
- 在KRAS和BRAF突变之间观察到显著的关联 (P=0.02),61.1%的KRAS阳性患者也具有BRAF突变.
结论:
- 具有KRAS阳性的结肠癌患者经常在西格结肠中表现出瘤.
- KRAS和BRAF突变的同时发生可能表明影响结肠癌进展的分子相互作用.
- 需要进一步的研究来阐明这些基因组模式的临床意义.
相关概念视频
The Ras Gene
6.4K
The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a...
Ras is a...
6.4K
Tumor Progression
6.5K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.5K

