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The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
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[Diagnostic and therapeutic perspectives in RASopathies].

Barnabás Péter Botos1, Júlia Erhardt1, Sámuel Jenei1

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This summary is machine-generated.

RASopathies are rare genetic disorders affecting multiple systems with increased tumor risk. Early diagnosis through molecular testing and genetic counseling is vital for managing complications and guiding treatment.

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Area of Science:

  • Genetics
  • Pediatrics
  • Oncology

Background:

  • RASopathies are congenital disorders presenting in childhood with diverse symptoms affecting neurological, cardiovascular, musculoskeletal, and skin systems.
  • These conditions are linked to impaired Ras signaling pathways, disrupting cell growth regulation and increasing tumor predisposition.
  • Symptoms include modified growth patterns and potential serious complications.

Purpose of the Study:

  • To outline the diagnostic approach for RASopathies.
  • To emphasize the importance of genetic counseling and family planning.
  • To highlight the availability of targeted therapies for specific organ involvements.

Main Methods:

  • Clinical suspicion triggers a stepwise molecular testing approach for RASopathy confirmation.
  • Detailed analysis of family history, including four-generation pedigrees, tumor and cardiac involvement, and minor anomalies.
  • Post-test genetic counseling is essential for patient management and family planning.

Main Results:

  • Molecular testing confirms specific RASopathy diagnoses.
  • Pedigree analysis clarifies inheritance patterns for cascade testing.
  • Identification of specific organ involvement guides targeted therapeutic interventions.

Conclusions:

  • Early diagnosis of RASopathies through molecular testing and genetic counseling is crucial.
  • Comprehensive evaluation including pedigree analysis aids in risk assessment and management.
  • Timely diagnosis facilitates access to targeted treatments, improving patient outcomes.