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Related Concept Videos

Destabilization of Microtubules01:45

Destabilization of Microtubules

The destabilization of microtubules can occur during different stages of the microtubule lifecycle, such as nucleation or elongation. It can take place at either end of the microtubule or in the microtubule lattices as a whole. The lifespan of individual microtubules within a cell varies according to the cell type and stage of the cell cycle. During interphase, the lifespan of the microtubule is about 30 minutes, while during cell division, it is about 15 minutes. In axonal microtubules of...
Microtubule Associated Motor Proteins01:32

Microtubule Associated Motor Proteins

Eukaryotic cells have different motor proteins for transporting various cargo within the cell. These motor proteins differ based on the filament they associate with, the direction they move within the cell, and the type of cargo they transport. Motor proteins that associate with microtubules are known as microtubule-associated motor proteins. There are two families of microtubule-associated motor proteins —Kinesins and Dyneins. Both these proteins assist in the transport of cellular cargos...
The Movement of Organelles and Vesicles01:43

The Movement of Organelles and Vesicles

In eukaryotic cells,  cytoskeletal filaments such as actin, microtubules, and intermediate filaments form a mesh-like cytoskeletal network. These filaments serve as tracks for transporting cellular cargo. Specialized motor proteins use the chemical energy stored in adenosine triphosphate (ATP) for this transport. During interphase, microtubules are polarized, with the plus-end towards the cell periphery and the minus-end towards the cell center. Two microtubule-associated motor proteins,...
Anaphase A and B01:39

Anaphase A and B

Microtubules form through the end-to-end polymerization of tubulin heterodimers. Kinetochore microtubules originate from the spindle poles, and their plus-ends connect with the kinetochores on sister-chromatids. Ndc80 protein complexes, present on the kinetochore, form low-affinity links with the plus end of these kinetochore microtubules.
Plus-end depolymerization releases tubulin heterodimers from the terminal region of the microtubule. As tubulin subunits are lost, the Ndc80 complexes detach...
Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Cancer Cell Migration through Invadopodia01:35

Cancer Cell Migration through Invadopodia

Invadosome is a broad category of cell surface structures with proteolytic activity that  degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However, invadopodia can...

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Related Experiment Video

Updated: May 8, 2026

Identification of Kinesin-1 Cargos Using Fluorescence Microscopy
08:06

Identification of Kinesin-1 Cargos Using Fluorescence Microscopy

Published on: February 14, 2016

Kinesins and cancer.

Oliver Rath1, Frank Kozielski

  • 1The Beatson Institute for Cancer Research, Garscube Estate, Switchback Road, Bearsden, Glasgow G61 1BD, Scotland, UK.

Nature Reviews. Cancer
|July 25, 2012
PubMed
Summary

Mitotic kinesins, crucial for cell division, are emerging as promising cancer drug targets. Inhibitors for kinesin Eg5 (KIF11) and CENPE are in clinical trials, with more targets under investigation.

Area of Science:

  • Molecular biology
  • Cell biology
  • Pharmacology

Background:

  • Kinesins are microtubule-based motor proteins essential for intracellular transport and cell division.
  • Mitotic kinesins play critical roles during cell division (mitosis).

Purpose of the Study:

  • To highlight the potential of mitotic kinesins as targets for cancer drug development.
  • To review the progress of kinesin-based cancer therapeutics currently in clinical trials.

Main Methods:

  • Review of current research and clinical trial data on mitotic kinesin inhibitors.
  • Identification and validation of novel mitotic kinesin targets for drug development.

Main Results:

  • Compounds inhibiting Eg5 (KIF11) and CENPE have advanced to Phase I and II clinical trials.

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Motility of Single Molecules and Clusters of Bi-Directional Kinesin-5 Cin8 Purified from S. cerevisiae Cells
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Motility of Single Molecules and Clusters of Bi-Directional Kinesin-5 Cin8 Purified from S. cerevisiae Cells

Published on: February 2, 2022

Directly Measuring Forces Within Reconstituted Active Microtubule Bundles
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Directly Measuring Forces Within Reconstituted Active Microtubule Bundles

Published on: May 10, 2022

Related Experiment Videos

Last Updated: May 8, 2026

Identification of Kinesin-1 Cargos Using Fluorescence Microscopy
08:06

Identification of Kinesin-1 Cargos Using Fluorescence Microscopy

Published on: February 14, 2016

Motility of Single Molecules and Clusters of Bi-Directional Kinesin-5 Cin8 Purified from S. cerevisiae Cells
10:46

Motility of Single Molecules and Clusters of Bi-Directional Kinesin-5 Cin8 Purified from S. cerevisiae Cells

Published on: February 2, 2022

Directly Measuring Forces Within Reconstituted Active Microtubule Bundles
07:47

Directly Measuring Forces Within Reconstituted Active Microtubule Bundles

Published on: May 10, 2022

  • These inhibitors are being tested as monotherapies and in combination treatments.
  • Several additional mitotic kinesins are undergoing validation as potential drug targets.
  • Conclusions:

    • Mitotic kinesins represent a promising class of targets for novel cancer therapies.
    • The pipeline for kinesin-based cancer drugs is expanding, with potential for future therapeutic advancements.