在非黑色素瘤皮肤癌 (NMSC) 中的短并列重复 (STR) 身体突变:与转录基因特征的关联以及对治疗的潜在影响
Muhammad G Kibriya1,2, Armando Almazan1, Maria Argos3
1Institute for Population and Precision Health (IPPH), University of Chicago, Chicago, IL 60637, USA.
Cancers
|May 28, 2025
概括
在非黑色素瘤皮肤癌 (NMSC) 中,短串重复 (STR) 身体突变与DNA修复问题有关. 这些突变可以帮助区分基底细胞癌 (BCC) 和健康的皮肤,潜在地指导精确治疗.
科学领域:
- 基因组学就是基因组学.
- 癌症研究 癌症研究
- 分子生物学分子生物学
背景情况:
- 癌症研究中的体质突变通常会忽视短串重复 (STRs),特别是同聚合物区域.
- 微卫星不稳定性 (MSI) 在非黑色素瘤皮肤癌 (NMSC) 中很少见,与结直肠癌不同.
- 这项研究研究了NMSC内部同聚合物区域的体质突变及其功能影响.
研究的目的:
- 在NMSC.中识别和描述STR体质突变.
- 探索癌症相关基因中这些突变的功能影响.
- 评估STR突变作为NMSC诊断和治疗选择的生物标志物的潜力.
主要方法:
- 针对400多个与癌症相关的基因进行了向DNA测序.
- 分析了32名NMSC患者的结合瘤和血液样本.
- 对照组由16个人的非损伤性皮肤组织组成.
主要成果:
- 确定了与NMSC相关的STR体质突变,与调节不良的DNA损伤和修复机制有关.
- 使用这些标记物的人工智能 (AI) 模型将基底细胞癌 (BCC) 与非损伤性皮肤区分开来.
- 像APC和BRAF这样的基因的突变显示出,Notch和Wnt信号通路的明显失调.
结论:
- STR体质突变状态可以作为BCC的生物标志物.
- 这种状态可以帮助确定符合准确治疗条件的BCC患者.
- 潜在的向疗法包括刺抑制剂,玛分泌酶抑制剂,抗VEGF,蛋白质酶抑制剂和免疫检查点抑制剂.
相关概念视频
Skin Cancer
6.4K
Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
6.4K
Cancers Originate from Somatic Mutations in a Single Cell
15.2K
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...
15.2K
Targeted Cancer Therapies
9.0K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
9.0K
Cancer
55.2K
Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.
55.2K
Combination Therapies and Personalized Medicine
6.3K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
6.3K


