在口腔状细胞癌中与药物相关的SNP的结构性药理学
Punya Sunil1, K C Ananth Kumar1, A I Ananthakrishnan1
1Division of Data Analytics, Bioinformatics and Structural Biology (DABS), Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India.
Frontiers in genetics
|February 27, 2026
概括
药物基因组学揭示了口腔状细胞癌 (OSCC) 的遗传变异如何影响药物反应. 这项研究确定了影响DNA修复和信号的特定变异,为南亚人群的精密瘤学铺平了道路.
科学领域:
- 基因组学就是基因组学.
- 药理学 药理学是指药理学的学科.
- 在瘤学瘤学.
背景情况:
- 口腔状细胞癌 (OSCC) 在治疗反应中表现出显著的个体间变异性.
- 影响OSCC药物反应的遗传变异,特别是在南亚人群中,尚不清楚.
- 了解这些机制对于开发精确瘤学策略至关重要.
研究的目的:
- 研究OSCC相关遗传变异对蛋白质结构和药物相互作用的影响.
- 为了确定改变蛋白质功能并影响治疗结果的特定变异.
- 为OSCC建立一个准确瘤学中药基因组分析的框架.
主要方法:
- 来自印度南部队列的OSCC特定变体与药物基因组数据的综合OSCC变体.
- 根据结构可用性和功能相关性优先考虑22种蛋白质改变变体.
- 采用同质模型和分子对接来评估对蛋白质构成和药物结合的变异效应.
主要成果:
- 在FLT3,ATM,MUTYH,XRCC1,XPC和MSH3中发现了影响DNA修复和信号通路的变异.
- 这种FLT3 T227M变体可能会改变受体二分化和苏尼替尼的结合.
- 预计MUTYH Q310H变体会通过影响酶架构来损害基切割修复.
结论:
- 药基因组学引导的结构分析阐明了OSCC变体与治疗反应之间的机制联系.
- 在 silico 发现为实验验证的变体提供了优先级的基础.
- 这种方法推进了OSCC的特定人群精确瘤学.
相关概念视频
Pharmacogenomics: Identification of New Drug Targets
53
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
53
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
63
Genetic variations significantly influence drug response through pharmacokinetics, receptor interactions, and biologic milieu modifications. Pharmacokinetic alterations impact drug metabolism and clearance, affecting efficacy and toxicity. Variants in drug-metabolizing enzymes, such as CYP2C9 and CYP2C19, alter drug activation and elimination. For example, CYP2C9 loss-of-function variants require lower warfarin doses to prevent excessive bleeding, while CYP2C19 variants reduce clopidogrel...
63
Single Nucleotide Polymorphisms-SNPs
18.8K
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,...
18.8K
Principles of Pharmacogenetics: Types of Genetic Variants
59
The human genome is over 99.9% identical between individuals, yet genetic differences exist at millions of bases. The human genome contains approximately 3 million variant positions per individual, many of which are heterozygous, contributing to genetic diversity and individual traits. Genetic variations include single-nucleotide polymorphisms (SNPs), insertions, deletions, and copy number variations (CNVs).SNPs, the most common variation, involve single-base changes in DNA. These can be...
59
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
54
Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...
54
Pharmacogenetics of Drug Transporters: P-Glycoprotein and Solute Carrier Transporters
77
The pharmacogenetics of drug transporters is increasingly recognized as a critical factor influencing interindividual variability in drug absorption, distribution, and elimination. These membrane-bound proteins regulate drugs' movement across cellular barriers by actively pumping them out (efflux) or facilitating their uptake (influx). Among the major transporter families, ATP-binding cassette (ABC) and solute carrier (SLC) transporters play particularly prominent roles. Genetic polymorphisms...
77


