Many drugs that inhibit mitosis bind specifically to...

Name: Problem 5, Chapter 18: Molecular Cell Biology
Uploaded: 2020-06-15T04:52:56-08:00
Duration: 3 min 8 s
Channel: Jorge Villanueva
Description: Many drugs that inhibit mitosis bind specifically to tubulin, microtubules, or both. What diseases are such drugs used to treat? Functionally speaking, these drugs can be divided into two groups based on their effect on microtubule assembly. What are the two mechanisms by which such drugs alter microtubule structure?

Many drugs that inhibit mitosis bind specifically to tubulin, microtubules, or both. What diseases are such drugs used to treat? Functionally speaking, these drugs can be divided into two groups based on their effect on microtubule assembly. What are the two mechanisms by which such drugs alter microtubule structure?

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Cancer Chemotherapy

Many drugs that target microtubules are used primarily in cancer treatment. By inhibiting mitosis, these agents interfere with the ability of rapidly dividing cancer cells to proliferate, making them essential components of chemotherapy regimens.

Microtubule Dynamics

Microtubules are dynamic structures made of tubulin that continuously assemble and disassemble. This dynamic instability is crucial for various cellular processes, including mitosis, where proper formation and segregation of the mitotic spindle are required for accurate cell division.

Microtubule Destabilization

One mechanism by which drugs alter microtubule structure is by inhibiting tubulin polymerization. These drugs prevent the assembly of microtubules, leading to the disruption of the mitotic spindle and resulting in cell cycle arrest during mitosis.

Microtubule Stabilization

The other mechanism involves hyperstabilizing microtubules, which prevents their normal depolymerization. This stabilization interferes with the dynamic reorganization required during cell division, effectively blocking mitosis.

Transcript

Please give Ace some feedback