Can a cell sense its own shape? Scientists developed an ingenious experiment to ask this question. Their conclusion - Yes - is detailed in a recent paper in the Journal of Cell Biology.
"Cells adopt diverse shapes that are related to how they function. We wondered if cells have the ability to perceive their own shapes, specifically, the curvature of the [cell] membrane," says the author.
The team focused on the septins, proteins that are usually found near micron-scaled curves in the cell membrane, such as the furrow that marks where the cell will pinch together and divide. Using live-cell imaging, they noticed that septins in a novel model system, the fungus Ashbya gossypii, tended to congregate on fungus branches where curvature was highest.
They then decided to recreate this natural phenomenon in the lab, using artificial materials they could measure more easily than living cells. Using precisely scaled glass beads coated with lipid membranes, they discovered that septin proteins preferred curves in the 1-3 micron range. They got the same result using human or fungal septins, suggesting that this phenomenon is evolutionarily conserved.
"This ability of septins to sense micron-scaled cell curvature provides cells with a previously unknown mechanism for organizing themselves," author says.
http://www.mbl.edu/blog/a-cell-senses-its-curves-new-research-from-the-whitman-center/
A cell senses its own curves
- 2,350 views
- Added
Edited
Latest News
Abusive drugs hijack natura…
By newseditor
Posted 23 Apr
Mechanism of action of the…
By newseditor
Posted 23 Apr
Role of fat in rare neurolo…
By newseditor
Posted 23 Apr
How protein synthesis in de…
By newseditor
Posted 22 Apr
Atlas of mRNA variants in d…
By newseditor
Posted 22 Apr
Other Top Stories
Alcohol treatment drug disulfiram helps obese mice lose weight, imp…
Read more
A new brain-sparing and weight loss amphetamine without side effects
Read more
Drug combination could eliminate side effects of once-popular diabe…
Read more
Blood test could predict postpartum diabetes in women with gestatio…
Read more
The mechanism of development of diabetes and fatty liver
Read more
Protocols
A programmable targeted pro…
By newseditor
Posted 23 Apr
MemPrep, a new technology f…
By newseditor
Posted 08 Apr
A tangible method to assess…
By newseditor
Posted 08 Apr
Stem cell-derived vessels-o…
By newseditor
Posted 06 Apr
Single-cell biclustering fo…
By newseditor
Posted 01 Apr
Publications
Exploiting pancreatic cance…
By newseditor
Posted 23 Apr
Structure of antiviral drug…
By newseditor
Posted 23 Apr
Type-I-interferon-responsiv…
By newseditor
Posted 23 Apr
Selenium, diabetes, and the…
By newseditor
Posted 23 Apr
Long-term neuropsychologica…
By newseditor
Posted 23 Apr
Presentations
Hydrogels in Drug Delivery
By newseditor
Posted 12 Apr
Lipids
By newseditor
Posted 31 Dec
Cell biology of carbohydrat…
By newseditor
Posted 29 Nov
RNA interference (RNAi)
By newseditor
Posted 23 Oct
RNA structure and functions
By newseditor
Posted 19 Oct
Posters
A chemical biology/modular…
By newseditor
Posted 22 Aug
Single-molecule covalent ma…
By newseditor
Posted 04 Jul
ASCO-2020-HEALTH SERVICES R…
By newseditor
Posted 23 Mar
ASCO-2020-HEAD AND NECK CANCER
By newseditor
Posted 23 Mar
ASCO-2020-GENITOURINARY CAN…
By newseditor
Posted 23 Mar