在突尼斯的病例控制研究中,免疫检查点分子中的功能遗传变异和对鼻癌的易感性
Wejden Gharbi1, Wicem Siala2, Olfa Abida3
1Autoimmunity, Cancer, and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba University Hospital, Sfax, Tunisia. gharbi.wejden1995@gmail.com.
Molecular biology reports
|December 29, 2025
概括
在突尼斯,CTLA-4 (rs231775) 和CD274 (rs2890658) 的遗传变异与鼻癌 (NPC) 风险增加有关. 这些发现突出了NPC的潜在遗传倾向因素.
科学领域:
- 免疫遗传学 免疫遗传学
- 癌症流行病学 癌症流行病学
- 分子生物学分子生物学
背景情况:
- 免疫检查点路径 (CTLA-4,PD-1,PD-L1) 在癌症治疗中至关重要.
- 这些途径中的遗传变异可以影响癌症风险和治疗结果.
研究的目的:
- 调查突尼斯常见的免疫基因多态和鼻癌 (NPC) 易感性之间的关联.
- 识别可能使个体易患NPC的特定遗传标记.
主要方法:
- 一项涉及61名突尼斯NPC患者和150名健康对照者的病例控制研究.
- 使用PCR-RFLP分析CTLA-4,PDCD1和CD274基因中的六种多态.
- 统计分析包括基因型,单元型和表型-基因型关联.
主要成果:
- CTLA-4 rs231775 AA基因型与增加的NPC敏感性 (OR=2.5) 有显著的关联.
- 在NPC患者中,一个特定的风险单元型 (rs231775-A,rs3087243-A,rs36084323-G,rs2227982-C,rs2227981-C) 在NPC患者中更为普遍 (OR=1.64).
- CD274 rs2890658 CC基因型与增加的NPC风险 (OR=3.2) 有着强烈的关联,C等位基因为2.4倍的风险.
结论:
- CTLA-4 rs231775 AA和CD274 rs2890658 CC基因型可以作为NPC的倾向因素.
- 这些遗传变异可能会为NPC病变的未来研究提供信息.
- CTLA-4,PDCD1和CD274值得进一步研究,因为它们是NPC中潜在的个性化治疗点.
相关概念视频
Single Nucleotide Polymorphisms-SNPs
17.8K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
17.8K
Cancer-Critical Genes II: Tumor Suppressor Genes
9.3K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
9.3K
Cancer Prevention
7.6K
Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Some...
7.6K


