Mitosis machinery (collective mitotic apparatus) (null)

The **mitosis machinery** refers to all molecular assemblies required for faithful segregation of duplicated genetic material and cytoskeletal components during cell division. This includes the mitotic spindle (assembled from microtubules and regulated by proteins like kinesin-5, dynein, and spindle assembly factors such as TPX2, NuMA, RanGTP), chromosomal scaffold proteins (condensin complex, topoisomerase IIα), and kinases (CDK1, Aurora kinases) that orchestrate the dynamic reorganization of cytoskeletal and chromosomal structures. The machinery ensures proper alignment, segregation, and division of chromosomes and cell contents, and defects in its function can lead to aneuploidy, cancer, developmental disorders, and cell death[1][4][6][7]. Many anti-cancer drugs target components of this machinery, but its multi-component nature means "mitosis machinery" itself is not a single drug target, and any therapeutic intervention must selectively target one or more of its molecular parts.

Other names

Mitotic machinerymitotic apparatuscell division machinerymitotic spindle machinery

Inhibition of microtubule polymerization/depolymerization (causing mitotic arrest); Inhibition of kinase activity (e.g., Aurora kinases, CDKs block cell cycle progression); Inhibition of topoisomerase II (block chromatid separation)