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Related Experiment Videos

Translocation 1;19 in two brain tumors

A M Vagner-Capodano1, F Mugneret, H Zattara-Cannoni

  • 1Cytogenetic Oncology laboratory, C. H. U. Timone, Marseilles, France.

Cancer Genetics and Cytogenetics
|August 1, 1997
PubMed
Summary

Two brain tumor cases, a childhood medulloblastoma and an adult glioblastoma, showed a rare t(1;19) chromosomal abnormality. Researchers used fluorescence in situ hybridization (FISH) to analyze this finding, suggesting it may indicate a specific tumor subtype.

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Neuropathology and applied neurobiology·2020

Area of Science:

  • Oncology
  • Genetics
  • Cytogenetics

Background:

  • Brain tumors like medulloblastoma and glioblastoma are significant health concerns.
  • Chromosomal abnormalities play a crucial role in cancer development and classification.
  • The t(1;19) translocation is a known recurrent abnormality in certain hematologic malignancies, specifically acute lymphoblastic leukemia (ALL).

Observation:

  • Two patients, one child with medulloblastoma and one adult with glioblastoma, presented with an unusual chromosomal abnormality: a translocation denoted as t(1;19)(q23;q13).
  • Karyotype analysis was performed using fluorescence in situ hybridization (FISH) to further investigate this specific chromosomal rearrangement.

Findings:

  • The identified t(1;19)(q23;q13) translocation was observed in both a pediatric medulloblastoma and an adult glioblastoma.

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  • FISH analysis confirmed the presence and nature of this specific chromosomal aberration in the studied brain tumor cases.

    • Implications:

    • The presence of t(1;19)(q23;q13) in these distinct brain tumors raises the possibility of it being a specific cytogenetic entity.
    • Further research is warranted to determine if this abnormality serves as a diagnostic or prognostic marker in brain tumors, similar to its role in ALL.
    • Investigating this chromosomal aberration could lead to novel therapeutic strategies targeting specific molecular pathways in these brain tumors.