chromoplexy
Pronunciation: KROH-moh-plek-see
A complex chromosomal rearrangement pattern involving chains of balanced translocations that can span multiple chromosomes while maintaining overall genomic balance.
Full Definition
Chromoplexy describes a specific type of genomic rearrangement characterized by complex chains of balanced translocations that can involve multiple chromosomes simultaneously. Unlike chromothripsis, chromoplexy typically maintains chromosomal balance with minimal copy number changes, creating intricate networks of reciprocal exchanges. These rearrangements often involve tumor suppressor genes and can result in their functional disruption through positional effects. The term combines 'chromo' (chromosome) and 'plexy' (braiding), reflecting the intertwined nature of the rearrangements. In cancer genomics reports, chromoplexy requires sophisticated structural variant analysis to detect and characterize properly.
Usage
Usage note: Emphasize balanced nature versus chromothripsis; requires structural variant expertise.
In Context
- "The structural variant analysis revealed chromoplexy involving chromosomes 8, 13, and 21." — Genomic pathology report
- "Chromoplexy patterns were associated with specific cancer subtypes in the cohort analysis." — Clinical research publication