HOME >> BIOLOGY >> NEWS
Using lasers, biologists succeed in getting cells to change course

CHAPEL HILL - Most people probably think that most cells in the body -- not counting blood cells -- stay in one place their entire lives just as whole plants do, but nothing could be further from the truth.

These microscopic living structures move a little or a lot, healing wounds, developing embryos, scouting and attacking disease-causing invaders and, sometimes, spreading cancer. As a result, the mechanics and chemistry of how cells get themselves from one place to another fascinates researchers around the world.

Now, using a beam of laser light only a few microns in diameter, University of North Carolina at Chapel Hill scientists have succeeded for the first time in getting such light to alter the course of a moving cell. They have accomplished that by having the laser create active proteins from what are called "caged" proteins that they introduced into the cell.

A report on the research appears in the May 28 issue of the Journal of Cell Biology.

The work has begun attracting attention from other scientists internationally.

"We put caging groups on particular amino acids of the protein we were interested in inside single cells and that makes the proteins less active," said Dr. Kenneth A. Jacobson, professor of cell and developmental biology at the UNC School of Medicine. "Then we directed the laser beam into part of the cells to break the bond between the caging group and the amino acid so that the protein became active again. Afterward, depending on where we shined the light, cells turned by as much as 90 degrees."

Their experiments might be likened to putting the breaks on one rear wheel of a car so that the car would tend to pull to one side or another, Jacobson said.

Besides Jacobson, UNC authors are Drs. Partha Roy, a postdoctoral fellow soon to join the research faculty, and Zenon Rajfur, research associate. Drs. Gerard Marriott and Leslie Loew of the universities of Wisconsin and Connecticut, respectively,
'"/>

Contact: David Williamson
David_Williamson@unc.edu
919-962-8596
University of North Carolina at Chapel Hill
21-Jun-2001


Page: 1 2

Related biology news :

1. Using statistics to decipher secrets of natural mutation
2. Using science to restore habitat for declining species
3. Using soils as filters to prevent crypto from moving to the groundwater
4. Using a companion crop to control weeds organically
5. Using plants and microbes to purify polluted industrial wastewater
6. Using GPR to estimate tree root biomass
7. Using computational power tools to bolster systems biology
8. Using RNA interference to tune gene activity in stem cells
9. Using sewage sludge as fertilizer
10. Using the oceans living light shows to fight terrorism or track the planets most massive migration
11. Using genetic research to treat inflammatory diseases Vienna centre of excellence in biomedicine harnesses basic research

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2017)... N.J. , May 16, 2017  Veratad Technologies, ... provider of online age and identity verification solutions, announced ... K(NO)W Identity Conference 2017, May 15 thru May 17, ... Regan Building and International Trade Center. ... the globe and in today,s quickly evolving digital world, ...
(Date:5/6/2017)... , May 5, 2017 ... just announced a new breakthrough in biometric authentication ... exploits quantum mechanical properties to perform biometric authentication. These ... smart semiconductor material created by Ram Group and ... finance, entertainment, transportation, supply chains and security. Ram ...
(Date:4/19/2017)... York , April 19, 2017 ... as its vendor landscape is marked by the presence ... market is however held by five major players - ... Together these companies accounted for nearly 61% of the ... the leading companies in the global military biometrics market ...
Breaking Biology News(10 mins):
(Date:9/21/2017)... ... September 21, 2017 , ... ... who enable the world’s most progressive pharma and biotech organizations to do more ... top pharma and biotech events in Q4. , DrugDev will demonstrate DrugDev Spark™, ...
(Date:9/20/2017)... ... 2017 , ... The award-winning producers behind the American Farmer ... innovations aimed at helping farmers solve the problem of nitrogen loss. The upcoming ... 8:30aET on RFD-TV. Check your local listings for more info. , As ...
(Date:9/20/2017)... ... September 20, 2017 , ... ... of a study examining the effects of exoskeleton-assisted walking on gait parameters ... (SCI). The article, "Neuromechanical adaptations during a robotic powered exoskeleton assisted walking ...
(Date:9/19/2017)... ... 2017 , ... Participants of this educational webinar will learn ... with the advantages and disadvantages of ductless, filtered fume hoods, they will also ... , Attendees will learn from an industry expert about the different types of ...
Breaking Biology Technology:
Cached News: