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Testicular germ cell tumors: Genomic alternations and RAS-dependent signaling

Saeideh Nakhaei-Rad1, Zahra Soleimani1, Saeedeh Vahedi2

  • 1Stem Cell Biology and Regenerative Medicine Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran.

Critical Reviews in Oncology/Hematology
|January 30, 2023
PubMed

Insights

This review explores genetic alterations in RAS signaling pathways, linking them to testicular germ cell tumors (TGCTs) and chemotherapy resistance. Understanding these genetic factors is crucial for improving TGCT treatment outcomes.

Area of Science:

  • Oncology
  • Genetics
  • Molecular Biology

Background:

  • Testicular germ cell tumors (TGCTs) are prevalent in young men, characterized by unique genetic profiles including chromosomal abnormalities.
  • RAS oncogenes are frequently mutated in human cancers, but their role in testicular carcinogenesis and treatment resistance remains unclear.

Purpose of the Study:

  • To review current knowledge on genetic alterations in RAS signaling-associated genes in TGCTs.
  • To investigate the link between these genetic changes and chemotherapy resistance mechanisms.
  • To explore the impact of epigenetic modifications on TGCT progression.

Main Methods:

  • Literature review of genetic alternations (SNPs, point mutations) in RAS signaling-associated genes in TGCTs.
  • Analysis of existing data on chemotherapy resistance in relation to these genetic factors.
  • Discussion of epigenetic influences on TGCT development.

Main Results:

  • TGCTs exhibit a distinct mutational profile with low somatic point mutations but frequent chromosomal gains and aneuploidy.
  • RAS signaling pathway alterations are implicated in TGCT pathogenesis and may contribute to chemotherapy resistance.
  • Epigenetic changes also play a role in TGCT progression.

Conclusions:

  • Genetic alterations in RAS-associated genes are relevant to TGCT development and treatment resistance.
  • Further research into RAS-dependent signaling networks can inform therapeutic strategies for TGCTs.
  • Epigenetic factors warrant consideration in understanding and managing TGCTs.
Keywords:
MutationsNon-seminomaRAS signalingSeminomaTGCTTesticular germ cell tumorsTherapy resistance

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