Kinetochore

Kinetochore refers to a multiprotein complex assembled on chromosome centromeres that mediates attachment to spindle microtubules during cell division, ensuring accurate chromosome segregation. Proper kinetochore function prevents aneuploidy and genomic instability, while dysfunction contributes to chromosomal missegregation associated with cancer and developmental disorders.

The pharmaceutical industry considers kinetochore biology in oncology research, particularly for drugs targeting mitosis and cell cycle regulation. Antimitotic agents disrupt spindle function and chromosome segregation, inducing apoptosis in rapidly dividing tumour cells. Understanding kinetochore dynamics supports mechanism-of-action studies and identification of resistance pathways. While kinetochore proteins are challenging targets due to essential cellular roles, continued research into mitotic regulation provides opportunities for selective cancer therapies. As precision oncology advances and novel mechanisms are explored, kinetochore biology contributes to understanding tumour cell vulnerabilities and identifying rational combination strategies.