Journal
CURRENT BIOLOGY
Volume 18, Issue 20, Pages 1581-1586Publisher
CELL PRESS
DOI: 10.1016/j.cub.2008.08.070
Keywords
-
Categories
Funding
- National Institutes of Health [GM62290, RR13186]
Ask authors/readers for more resources
Actin filaments that serve as rails for the myosin-based transport of membrane organelles [1-4] continuously turn over by concurrent growth and shortening at the opposite ends [5]. Although it is known that dynamics of actin filaments is essential for many of the actin cytoskeleton functions, the role of such dynamics in myosin-mediated organelle transport was never studied before. Here, we addressed the role of turnover of actin filaments in the myosin-based transport of membrane organelles by treating cells with the drugs that suppress actin-filament dynamics and found that such a suppression significantly inhibited organelle transport along the actin filaments without inhibiting their intracellular distribution or the activity of the myosin motors. We conclude that dynamics of actin filaments is essential for myosin-based transport of membrane organelles and suggest a previously unknown role of actin-filament dynamics in providing the rails for continuous organelle movement resulting in the increased distances traveled by membrane organelles along the actin filaments.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available