基因和自闭症:遗传基础和神经发育影响
Ann C Genovese1, Merlin G Butler1
1Department of Psychiatry and Behavioral Sciences, University of Kansas Medical Center, Kansas City, KS 66160, USA.
Genes
|September 27, 2025
概括
遗传因素,特别是PTEN基因突变,对自闭症谱系障碍 (ASD) 风险有重大影响. 了解这些PTEN变体及其对神经发育的影响对于早期干预和改善结果至关重要.
科学领域:
- 遗传学和神经发育的研究
- 分子生物学分子生物学
- 医学遗传学 医学遗传学
背景情况:
- 自闭症谱系障碍 (ASD) 风险在很大程度上是遗传 (90%),涉及许多基因.
- 已知用于瘤抑制的PTEN基因,当突变时也会导致神经发育问题,如巨头症和ASD.
- 对于PTEN变异如何影响PTEN相关神经发育障碍的具体表现的理解有限.
研究的目的:
- 探索PTEN基因变异的遗传基础及其对神经发育障碍的影响.
- 描述与PTEN相关的基因-基因和蛋白质-蛋白质相互作用及其与ASD的关联.
- 为了确定与PTEN相关的疾病的潜在治疗点.
主要方法:
- 使用关键词进行全面的文献搜索 (PubMed,OMIM,基因评论):PTEN,遗传因素,自闭症,人类研究.
- 使用STRING进行基因组蛋白功能网络的分析,以获得机械洞察力.
- 基因变异的特征,蛋白质相互作用和相关的生物途径.
主要成果:
- PTEN基因变异改变交互性蛋白质,影响生物过程,分子功能和与神经发育相关的途径.
- 与PTEN变异相关的特定基因-基因和蛋白质-蛋白质相互作用增加了精神疾病和ASD的风险.
- PTEN缺陷与过度生长,大脑,大脑异常和脑脊液 (CSF) 动态异常有关.
结论:
- PTEN基因缺陷是ASD的已知的遗传原因.
- PTEN变体和改变的蛋白质相互作用增加了过度生长,巨头症和特定大脑异常的风险.
- 这些发现可以指导早期治疗干预,以改善PTEN相关的神经发育障碍的长期结果.
相关概念视频
01:28Human Genetics
1.5K
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
1.5K
01:19Autism Spectrum Disorder
981
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
981
01:33Pleiotropy
43.2K
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,...
43.2K
02:54Canonical Wnt Signaling Pathway
10.4K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
10.4K
03:03mTOR Signaling and Cancer Progression
4.6K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
4.6K
02:30Genomic Imprinting and Inheritance
36.8K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
36.8K