Nucleic Acid Probe Set for MYC-IG Gene Rearrangement Detection
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Solution Overview
Problem
Current methods for detecting MYC-immunoglobulin gene rearrangements in mammals face challenges due to the wide variation in breakpoints, particularly when genes other than IGH are involved, making routine detection difficult for diagnostic and prognostic purposes in B-cell malignancies.
Innovation Solution
A probe set comprising nucleic acid molecules capable of hybridizing to MYC and IGK or IGL nucleotide sequences, with distinct labels for differentiation, is used to detect gene rearrangements through hybridization patterns, allowing for the identification of fusion products and breakpoint locations using FISH techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional detection methods are used for MYC gene rearrangements, then detection can be performed, but detection accuracy deteriorates due to wide variation in breakpoints particularly when IGK or IGL is involved instead of IGH
Solution Approach 1:
The probe set is designed to detect MYC-IGH, MYC-IGK, and MYC-IGL rearrangements simultaneously, making it universally applicable across different immunoglobulin gene partners. The probes target conserved regions that accommodate breakpoint variation, allowing a single probe set to function across multiple rearrangement types and locations.
Solution Approach 2:
The probe set targets specific local regions within the MYC and immunoglobulin genes that are commonly involved in rearrangements. By focusing on key functional domains and conserved sequences, the probes achieve high detection accuracy despite the wide variation in breakpoint locations across different cases.
2Adaptability or versatility
If probe sets are designed to cover all possible breakpoints, then detection coverage improves, but probe set complexity increases
Solution Approach 1:
Instead of creating separate probe sets for each possible breakpoint location, a universal probe set is designed that can detect all MYC-immunoglobulin rearrangements through targeted hybridization to conserved regions, reducing complexity while maintaining comprehensive coverage.
Solution Approach 2:
The probe set extracts and targets only the critical conserved sequences that are essential for detection, omitting the need to cover every possible breakpoint location. This selective approach to probe design simplifies the overall probe set while maintaining detection capability across varied breakpoints.
3Reliability
If multiple probes are used to cover different immunoglobulin genes, then detection capability improves, but ease of operation deteriorates due to increased complexity in interpretation
Solution Approach 1:
Multiple probes targeting MYC-IGH, MYC-IGK, and MYC-IGL rearrangements are merged into a single integrated probe set with standardized labeling. This allows simultaneous detection of all rearrangement types in one hybridization experiment, improving reliability while maintaining ease of operation through unified analysis protocols.
Solution Approach 2:
The probe set uses distinct fluorescent labels to differentiate between various immunoglobulin gene partners (IGH, IGK, IGL), enabling visual differentiation and simplified interpretation of results through color-coded detection patterns that indicate specific rearrangement types.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables accurate detection of MYC and IG gene rearrangements, aiding in the diagnosis and prognosis of B-cell lineage malignancies by providing clear hybridization patterns that indicate the presence and extent of gene rearrangements, even in cases with varied breakpoints.
Implementation Method 1
A probe set comprising nucleic acid molecules capable of hybridizing to MYC and IGK or IGL nucleotide sequences, with distinct labels for differentiation, is used to detect gene rearrangements through hybridization patterns
Data Source
AI summary
This document provides methods and materials related to detecting gene rearrangements (e.g., MYC gene rearrangements). For example, nucleic acid probe sets for detecting MYC-immunoglobulin gene rearrangements in mammals are provided.