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Micronucleus expression and acute leukemia prognosis.

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Micronucleus frequency (MNF) in lymphocytes indicates chromosomal damage. Higher MNF in acute leukemia patients correlates with poorer treatment response and survival rates, suggesting its prognostic value.

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Area of Science:

  • Hematology
  • Genetics
  • Oncology

Background:

  • Micronucleus frequency (MNF) in peripheral blood lymphocytes (PBL) serves as a biomarker for chromosomal damage and genome instability.
  • The prognostic significance of MNF in acute leukemia patients remains unclear.

Purpose of the Study:

  • To investigate the relationship between MNF and prognosis in patients with acute leukemia.
  • To evaluate MNF as a potential biomarker for disease progression in hematologic malignancies and solid tumors.

Main Methods:

  • Assessed MNF in mitogen-activated PBL from 50 acute leukemia patients, 49 myelodysplastic syndrome (MDS) patients, 54 benign blood disease patients, 45 solid tumor patients, and 50 healthy controls.
  • Compared MNF levels across patient groups and correlated MNF with treatment response and survival rates in acute leukemia.

Main Results:

  • Mean MNF was significantly higher in hematologic diseases and solid tumor patients compared to healthy controls (P<0.001).
  • Acute leukemia and solid tumor groups exhibited higher MNF than MDS and benign blood disease groups.
  • Acute leukemia patients with low MNF (<7.15%) showed significantly higher overall response rates (P=0.001) and better survival than those with high MNF (≥7.15%).
  • A strong negative correlation (r=-0.702) was observed between MNF expression and progression-free survival.

Conclusions:

  • MNF in PBL is a valuable indicator for evaluating prognosis in acute leukemia patients.
  • MNF levels can reflect disease progression to some extent, offering potential for clinical application in patient management.