在chr11p11.2处的非编码调节变异rs2863002通过影响HSD17B12表达和脂质代谢增加神经母细胞瘤风险
Teresa Maiorino1,2, Marianna Avitabile1, Vincenzo Aievola1,2
1Department of Molecular Medicine and Medical Biotechnology at University of Naples "Federico II", Naples, 80131, Italy.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|June 17, 2025
概括
一项全基因组关联研究发现了神经母细胞瘤风险基因在chr11p11.2.2. rs2863002变种调节HSD17B12,影响脂质代谢和神经母细胞瘤的发展.
科学领域:
- 遗传学 遗传学 是一个
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 神经母细胞瘤是一种常见的儿童癌症.
- 全基因组关联研究 (GWAS) 已经确定了与神经母细胞瘤风险相关的遗传位置.
- 这些关联背后的功能机制往往不清楚.
研究的目的:
- 为了识别和功能性地描述神经母细胞瘤在chr11p11.2.2.的倾向位置.
- 调查候选因果变异rs2863002在神经母细胞瘤发展中的作用.
- 阐明风险等位基因的调控机制和生物后果.
主要方法:
- 在欧美队列中进行全基因组关联研究 (GWAS).
- 路西法雷斯记者测定以确认cis-regulatory活动.
- 在意大利病例控制队列中的验证.
- 染色体免疫沉,然后进行定量PCR (ChIP-qPCR),Hi-C和CRISPR基因组编辑.
- 在体外功能测定和向性脂质组分析.
主要成果:
- 鉴定出chr11p11.2位点是神经母细胞瘤倾向位点.
- rs2863002被认为是具有验证的遗传关联的候选因果变异.
- 显示rs2863002-C风险等位基因调节HSD17B12表达并降低GATA3结合.
- 这种调节会影响神经母细胞细胞的瘤性和脂质代谢.
结论:
- 该研究确定了rs2863002在chr11p11.2中的功能神经母细胞瘤风险变体.
- 风险等位基因对HSD17B12的调节有助于神经母细胞瘤瘤性和改变脂质代谢.
- 后GWAS功能性特征对于理解复杂疾病遗传学至关重要.
相关概念视频
lncRNA - Long Non-coding RNAs
9.0K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
9.0K
Comparing Copy Number Variations and SNPs
18.0K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
18.0K
The Retinoblastoma Gene
4.2K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
4.2K
Abnormal Proliferation
4.6K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.6K
Pleiotropy
41.2K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
41.2K
Alternative RNA Splicing
21.8K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
21.8K


