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Related Experiment Videos

C-kit receptor (CD117) expression in acute leukemia

L R Valverde1, E Matutes, N Farahat

  • 1Academic Department of Haematology and Cytogenetics, Royal Marsden Hospital, London, United Kingdom.

Annals of Hematology
|January 1, 1996
PubMed
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The c-kit (CD117) marker is expressed early in myeloid differentiation, aiding acute myeloid leukemia (AML) diagnosis. It shows high specificity for myeloid lineages in acute leukemia cases.

Area of Science:

  • Hematology
  • Oncology
  • Molecular Biology

Background:

  • The c-kit proto-oncogene encodes a transmembrane tyrosine kinase receptor.
  • Murine monoclonal antibody YB5.B8 targets the CD117 antigen, identifying the c-kit receptor.
  • Understanding c-kit expression aids in classifying hematopoietic malignancies.

Purpose of the Study:

  • To investigate c-kit expression in various acute leukemia types.
  • To determine the specificity and sensitivity of c-kit as a marker for myeloid and lymphoid lineages.
  • To evaluate the diagnostic utility of c-kit in acute myeloid leukemia (AML).

Main Methods:

  • Analysis of c-kit expression using the YB5.B8 antibody.
  • Study included 115 cases of acute leukemia.

Related Experiment Videos

  • Evaluation of c-kit positivity in AML, ALL, and myeloid blast crisis.

    • Main Results:

    • C-kit was expressed in over half of acute leukemia cases studied.
    • Two-thirds of AML cases were c-kit positive, while only one ALL patient was positive.
    • C-kit was positive in myeloid blast crisis but negative in lymphoid blast crisis.

    Conclusions:

    • C-kit is a specific marker for the myeloid lineage in acute leukemia.
    • Early expression of c-kit during hematopoietic differentiation aids AML diagnosis.
    • Further studies are needed to explore c-kit's prognostic significance in AML subgroups.