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Microtubule Inhibition

Molecular classification: Other

Overview

Microtubule inhibition refers to the disruption of microtubule dynamics, a critical process for cell division and intracellular transport. Microtubules are cytoskeletal structures composed of α/β-tubulin heterodimers that undergo continuous polymerization (growth) and depolymerization (shortening). Agents that inhibit microtubules—often called microtubule inhibitors or antimitotic agents—interfere with these dynamics, leading to cell cycle arrest and apoptosis, particularly in rapidly dividing cells such as cancer cells.

Mechanism of action

Disruption/stabilization of tubulin polymerization/depolymerization

Biological functions

Cell cycleCell divisionIntracellular transportRegulation of cell structure

Disease associations

CancerGout

Safety considerations

Resistance mechanisms (mutations in tubulin genes)Changes increasing microtubule dynamicsAdverse effects due to affecting rapidly dividing cells

Interacting drugs

Vincristine

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