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Related Concept Videos

Cancers Originate from Somatic Mutations in a Single Cell02:21

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Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
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Related Experiment Video

Updated: Jun 5, 2025

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Cancer-type somatic mutations in saccular cerebral aneurysms.

Behnam Rezai Jahromi1,2, Miko Valori3, Riikka Tulamo4

  • 1Department of Neurosurgey, Neurocenter, Helsinki University Hospital, Helsinki, Finland. behnam.rezai-jahromi@hus.fi.

European Journal of Human Genetics : EJHG
|December 12, 2024
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Summary
This summary is machine-generated.

Somatic mutations in cancer-related genes are found in saccular cerebral aneurysms. These genetic alterations may contribute to the development of intracranial aneurysms (IAs), similar to fusiform aneurysms.

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Area of Science:

  • Genetics
  • Neurology
  • Oncology

Background:

  • Intracranial aneurysms (IAs) are a significant cause of subarachnoid hemorrhage (SAH), leading to high morbidity and mortality.
  • The underlying mechanisms of IA development are not fully understood.

Purpose of the Study:

  • To investigate the role of somatic mutations in the development of saccular cerebral aneurysms.
  • To identify specific genetic alterations associated with IA formation.

Main Methods:

  • Whole exome sequencing of DNA from 20 saccular cerebral aneurysms.
  • Somatic variant calling to detect mutations within aneurysm samples.

Main Results:

  • Somatic mutations were detected in 55% of patients, with 48 mutations found in total.
  • Mutations were enriched in cancer-related genes, with 77% predicted to be deleterious.
  • A specific PDGFRB mutation (p.Tyr562Asp) was identified, previously linked to fusiform aneurysms.

Conclusions:

  • Somatic mutations may play a role in the pathogenesis of common saccular cerebral aneurysms.
  • These findings expand the understanding of somatic mutations in various types of intracranial aneurysms.