Efficient detection of leukemia-related fusion transcripts by multiplex PCR applied on a microelectronic platform

Area of Science:

• Hematology
• Molecular Diagnostics
• Oncology

Background:

• Accurate prognostication and treatment selection for leukemia patients rely on identifying fusion genes.
• There is a growing need for integrated diagnostic platforms capable of analyzing various molecular features, including gene expression and mutations.

Purpose of the Study:

• To develop a rapid, accurate, and reproducible assay for screening common fusion gene transcripts in human leukemia.
• To demonstrate the utility of a multi-purpose microelectronic platform for comprehensive hemato-oncology diagnostics.

Main Methods:

• A multiplex reverse transcription-polymerase chain reaction (RT-PCR) assay was developed.
• Electronic hybridization and fluorescent detection were performed on the Nanogen NanoChip Molecular Biology Workstation.

Main Results:

• The assay successfully screened for common fusion gene transcripts in leukemia.
• The microelectronic device proved efficient for both gene expression analysis and single base mutation detection.

Conclusions:

• The developed assay and platform offer a versatile solution for leukemia diagnostics.
• This multi-purpose platform supports comprehensive patient classification and monitoring, including risk stratification and minimal residual disease assessment.