Chromosome segregation

Chromosome segregation is the essential biological process during cell division (mitosis and meiosis) where replicated chromosomes are separated and distributed into daughter cells (Nature Education, 2014). This highly regulated mechanism ensures that each new cell receives the correct complement of genetic material, relying on a complex apparatus including the mitotic spindle, kinetochores, and various motor proteins (NIH, 2023). Defects in this process result in aneuploidy, which is a primary driver of tumorigenesis and is associated with various congenital conditions such as Down syndrome (PubMed, 2021). While chromosome segregation is a multi-step pathway rather than a single molecular entity, it serves as a critical focal point for oncology therapeutics. Drugs like taxanes and vinca alkaloids target tubulin to disrupt spindle formation, while newer agents target regulatory enzymes like Aurora kinases and Polo-like kinases to induce mitotic arrest and apoptosis in cancer cells (PubChem, 2024).

Other names

Mitotic chromosome segregationMeiotic chromosome segregationSister chromatid separationChromosome partitioning

Disruption of microtubule dynamics, inhibition of mitotic kinases, or interference with DNA topoisomerases to prevent accurate partitioning of genetic material.