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Mantle cell lymphoma: an update.

M Raffeld1, C A Sander, T Yano

  • 1Hematopathology Section, Laboratory of Pathology, National Cancer Institute, Bethesda, MD 20892.

Leukemia & Lymphoma
|October 1, 1992
PubMed
Summary
This summary is machine-generated.

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Mantle cell lymphoma, a type of non-Hodgkin lymphoma, is identified by a specific genetic translocation, t(11;14). This translocation activates the BCL-1/PRAD-1 gene, crucial for understanding its development.

Area of Science:

  • Hematology
  • Oncology
  • Genetics

Background:

  • Mantle cell lymphoma (MCL) is a distinct subtype of non-Hodgkin lymphoma.
  • It previously encompassed centrocytic lymphoma and intermediate lymphocytic lymphoma categories.
  • MCL exhibits common histologic and immunologic features suggesting follicular mantle zone origin.

Purpose of the Study:

  • To define the key molecular and genetic characteristics of Mantle Cell Lymphoma.
  • To elucidate the role of specific translocations and gene activations in MCL pathogenesis.

Main Methods:

  • Histopathologic and immunologic characterization of MCL.
  • Cytogenetic analysis to identify chromosomal translocations.
  • Molecular studies to detect gene rearrangements, specifically bcl-1.

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Main Results:

  • Mantle cell lymphomas are consistently characterized by the t(11;14) chromosomal translocation.
  • The bcl-1 gene rearrangement is the molecular correlate of this translocation.
  • Activation of the BCL-1/PRAD-1 gene is a key event.

Conclusions:

  • The t(11;14) translocation and bcl-1 rearrangement are defining features of Mantle Cell Lymphoma.
  • The BCL-1 gene product, identified as a cyclin, provides insights into lymphomagenesis mechanisms.