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[Significance of MUM-1/IRF4 protein expression in follicular lymphoma]

Ying-ying Huo1, Yi Pan, Bing-xin Guan

  • 1Department of Pathology, Shandong University School of Medicine, Jinan, China.

Zhonghua Bing Li Xue Za Zhi = Chinese Journal of Pathology
|December 16, 2011
PubMed

Insights

MUM-1/IRF4 protein expression is significantly elevated in high-grade follicular lymphoma, correlating with increased proliferation and aggressive behavior. This marker aids in diagnosing high-grade follicular lymphoma.

Area of Science:

  • Oncology
  • Hematopathology
  • Molecular Diagnostics

Background:

  • Follicular lymphoma (FL) is a common indolent non-Hodgkin lymphoma.
  • Accurate grading and prognostic assessment are crucial for treatment decisions.
  • The role of MUM-1/IRF4 in FL progression requires further elucidation.

Purpose of the Study:

  • To investigate the expression patterns of MUM-1/IRF4 in follicular lymphoma.
  • To determine the significance of MUM-1/IRF4 expression in relation to FL grade and other markers.

Main Methods:

  • Ninety-eight follicular lymphoma cases were analyzed using tissue microarray and immunohistochemistry.
  • Cases were graded according to 2008 WHO criteria.
  • Expression of MUM-1/IRF4, CD10, bcl-6, bcl-2, and Ki-67 was assessed.

Main Results:

  • MUM-1/IRF4 was expressed in 39.8% of cases, predominantly in high-grade FL (grades 3A and 3B).
  • MUM-1/IRF4 expression showed a significant positive correlation with FL grade and Ki-67 index.
  • Negative correlation was observed between MUM-1/IRF4 and CD10 expression.

Conclusions:

  • Elevated MUM-1/IRF4 expression is associated with high-grade follicular lymphoma.
  • High MUM-1/IRF4 expression indicates increased proliferative activity, aggressive behavior, and poorer prognosis.
  • MUM-1/IRF4 serves as a valuable diagnostic marker for high-grade FL.
Abstract

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