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[Chronic myeloid leukemia, biological aspects]

R Costello1, R Bouabdallah, D Sainty

  • 1Département d'hématologie générale, institut Paoli-Calmettes, Marseille, France.

La Revue De Medecine Interne
|January 1, 1996
PubMed
Summary

Chronic myeloid leukemia (CML) is a stem cell disorder characterized by the Philadelphia chromosome. Understanding the BCR/ABL fusion gene

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Area of Science:

  • Hematology
  • Molecular Biology
  • Genetics

Context:

  • Chronic myeloid leukemia (CML) is a clonal myeloproliferative disorder originating from a stem cell.
  • CML is characterized by the Philadelphia (Ph) chromosome, a result of the t(9;22) translocation.
  • This translocation creates the BCR/ABL fusion gene.

Purpose:

  • To elucidate the molecular mechanisms underlying Chronic Myeloid Leukemia (CML).
  • To understand the role of the BCR/ABL fusion gene and its protein product in CML pathogenesis.

Summary:

  • The Philadelphia chromosome in CML arises from a t(9;22) translocation, forming the BCR/ABL fusion gene.
  • This gene produces a hybrid protein with abnormal tyrosine-kinase activity, driving leukemic cell growth.
  • Aberrant cell growth regulation and interactions with other genes may also contribute to CML.

Impact:

  • A deeper understanding of CML molecular mechanisms can guide the development of targeted therapies.
  • Potential treatments include tyrosine-kinase inhibitors and novel nucleic acid-based therapies targeting the BCR/ABL fusion sequence.

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