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Updated: Feb 22, 2026

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[Pathogenesis and genetics of osteosarcoma : Current concepts and developments].

D Baumhoer1

  • 1Knochentumor-Referenzzentrum am Institut für Pathologie, Universitätsspital Basel, Universität Basel, Basel, Schweiz. daniel.baumhoer@usb.ch.

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Summary

Osteosarcomas are complex tumors with poor survival rates due to genetic instability. This review highlights recent genomic sequencing studies and their potential for new osteosarcoma treatments.

Keywords:
BRCAnessCheckpoint inhibitorsChromothripsisCopy number alterationsOsteosarcoma

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Area of Science:

  • Oncology
  • Genetics
  • Genomics

Background:

  • Osteosarcomas are genetically complex tumors with poorly understood origins and pathogenesis.
  • Current survival rates for osteosarcoma remain suboptimal, largely due to early chromosomal instability and resulting tumor heterogeneity.
  • Significant inter- and intratumoral heterogeneity complicates treatment strategies.

Purpose of the Study:

  • To review the current state of osteosarcoma research.
  • To focus on the impact of exome- and genome-wide sequencing analyses in osteosarcoma.
  • To explore potential new therapeutic opportunities arising from genomic insights.

Main Methods:

  • Review of current osteosarcoma research literature.
  • Emphasis on exome- and genome-wide sequencing studies.
  • Analysis of findings related to tumor heterogeneity and genetic complexity.

Main Results:

  • Genomic sequencing reveals significant genetic complexity in osteosarcomas.
  • Chromosomal instability is a key driver of inter- and intratumoral heterogeneity.
  • Understanding these genomic features is crucial for improving treatment outcomes.

Conclusions:

  • Exome- and genome-wide sequencing are advancing our understanding of osteosarcoma.
  • Genomic insights offer promising avenues for developing novel therapeutic strategies.
  • Further research into osteosarcoma genomics is essential for improving patient survival.