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<p>The spatial organization of the genome within the nucleus — also known as genome architecture or 3D genome — is important to the regulation of gene expression. Disruption of the 3D genome, for example, by structural variation, can contribute to disease, including developmental disorders and cancer. Structural variants can rearrange higher-order chromatin structures, such as topologically associating domains, and disrupt interactions between <i>cis-</i>regulatory elements, which can lead to altered gene expression, a phenomenon known as position effects. New experimental and computational approaches are revealing the effect of structural variants on the 3D genome and gene expression and can help interpret their pathogenic potential, which has important implications for patients. Here, we review mechanisms of disease caused by position effects owing to disruptions of genome architecture, and more specifically topologically associating domains, as well as their consequences and clinical impact.</p>

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Structural variants in the 3D genome as drivers of disease

  • 期刊论文

  • 发表日期：

    2025年6月30日

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  • Varun K. A. Sreenivasan,
  • Verónica Yumiceba,
  • Malte Spielmann

摘要

The spatial organization of the genome within the nucleus — also known as genome architecture or 3D genome — is important to the regulation of gene expression. Disruption of the 3D genome, for example, by structural variation, can contribute to disease, including developmental disorders and cancer. Structural variants can rearrange higher-order chromatin structures, such as topologically associating domains, and disrupt interactions between cis-regulatory elements, which can lead to altered gene expression, a phenomenon known as position effects. New experimental and computational approaches are revealing the effect of structural variants on the 3D genome and gene expression and can help interpret their pathogenic potential, which has important implications for patients. Here, we review mechanisms of disease caused by position effects owing to disruptions of genome architecture, and more specifically topologically associating domains, as well as their consequences and clinical impact.