[Genetic Mutation Profile and Risk Stratification of Cytogenetically Normal Acute Myeloid Leukemia with Mutations...

Area of Science:

• Hematology
• Oncology
• Molecular Biology

Context:

• Cytogenetically normal acute myeloid leukemia (CN-AML) with CEBPA-bZIP mutations represents a distinct subset of adult AML.
• Understanding the gene mutation profile and prognostic significance is crucial for optimizing treatment strategies in this patient group.

Purpose:

• To evaluate the gene mutation profile and prognostic significance of adult CN-AML with CEBPA-bZIP mutations.
• To develop a nomogram model for risk stratification and guide post-remission therapy decisions.

Summary:

• Targeted sequencing of 141 adult CN-AML patients with CEBPA-bZIP mutations identified a complex co-mutation pattern.
• A nomogram model incorporating WBC count, CSF3R, KMT2A, and DNA methylation-related gene mutations stratified patients into low- and high-risk groups.
• High-risk patients demonstrated significantly improved leukemia-free survival and overall survival with allogeneic hematopoietic stem cell transplantation (allo-HSCT) compared to maintenance chemotherapy.

Impact:

• The developed nomogram model provides a valuable tool for prognosis estimation and treatment decision-making in adult CN-AML with CEBPA-bZIP mutations.
• Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is recommended as post-remission therapy for high-risk individuals identified by the nomogram.