ERBB2 I655V突变与免疫治疗在胆囊癌中的疗效相关
Qiang Gao1, Ying-Nan You2, Shuo Lian1
1Department of General Surgery, Cheeloo College of Medicine, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, Shandong, 250012, China.
World journal of surgical oncology
|February 3, 2026
概括
Erb-B2受体氨酸激酶2 (ERBB2) I655V突变可能改善胆囊癌治疗反应. 这种突变增强了信号通路和PD-L1表达,可能受益于免疫治疗.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 分子生物学分子生物学
背景情况:
- 胆囊癌 (GBC) 是一种具有不良预后的侵袭性恶性瘤,需要新的向疗法.
- Erb-B2受体氨酸激酶2 (ERBB2) 是一种原瘤基因,与各种癌症发展有关.
研究的目的:
- 调查与高级GBC治疗反应相关的潜在基因组变化.
- 阐明ERBB2 I655V突变对信号通路和瘤微环境的功能影响.
主要方法:
- 在组合治疗后,在患者瘤组织上进行全外体测序 (WES).
- 对具有野生型或突变ERBB2.2的细胞系进行转录基因分析,西部斑块和生物信息分析.
- 对PI3K-AKT,MAPK-ERK通路激活和PD-L1表达的评估.
主要成果:
- WES发现了与治疗反应潜在相关的ERBB2 I655V突变.
- ERBB2 I655V突变构成性地激活ERBB2,增强PI3K-AKT和MAPK-ERK信号传输.
- 这种突变调节PD-L1的表达,促进免疫抑制瘤微环境.
结论:
- 在接受免疫治疗的胆囊癌患者中,ERBB2 I655V突变可能与治疗反应的增强有关.
- 了解这种突变的作用可以指导针对GBC的向治疗策略的开发.
更多相关视频
相关概念视频
Gallbladder
2.3K
The gallbladder is a small, pear-shaped organ that plays a crucial role in our digestive system. Measuring about 10 cm in length, it is comparable in size to a kiwi fruit and is located in a hollow area on the lower surface of the liver. The gallbladder's primary function is to store and concentrate bile, a fluid produced by the liver that aids in digestion.
The gallbladder's anatomy consists of three regions: the fundus, body, and neck. Extending from the neck, the cystic duct joins...
The gallbladder's anatomy consists of three regions: the fundus, body, and neck. Extending from the neck, the cystic duct joins...
2.3K
Mutations
94.5K
Overview
94.5K
Diseases of the Liver and Gallbladder
2.0K
Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not...
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not...
2.0K
Correlations
36.1K
Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
36.1K
Cancers Originate from Somatic Mutations in a Single Cell
14.9K
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
14.9K
Tumor Immunotherapy
1.9K
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
1.9K


