Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Nanopore opens new cellular doorway for drug transport

Abstract:
A living cell is built with barriers to keep things out - and researchers are constantly trying to find ways to smuggle molecules in.‬ ‪Professor Giovanni Maglia (Biochemistry, Molecular and Structural Biology, KU Leuven) and his team have engineered a biological nanopore that acts as a selective revolving door through a cell's lipid membrane. The nanopore could potentially be used in gene therapy and targeted drug delivery.‬‬‬‬‬‬‬

Nanopore opens new cellular doorway for drug transport

Leuven, Belgium | Posted on October 23rd, 2013


Nanopore opens new cellular doorway for drug transport

A living cell is built with barriers to keep things out - and researchers are constantly trying to find ways to smuggle molecules in.‬ ‪Professor Giovanni Maglia (Biochemistry, Molecular and Structural Biology, KU Leuven) and his team have engineered a biological nanopore that acts as a selective revolving door through a cell's lipid membrane. The nanopore could potentially be used in gene therapy and targeted drug delivery.‬‬‬‬‬‬‬

All living cells are enclosed by a lipid membrane that separates the interior of the cell from the outside environment. The influx of molecules through the cell membrane is tightly regulated by membrane proteins that act as specific doorways for the trafficking of ions and nutrients. Membrane proteins can also be used by cells as weapons. Such proteins attack a cell by making holes - nanopores - in ‘enemy' cell membranes. Ions and molecules leak from the holes, eventually causing cell death.

‪Researchers are now trying to use nanopores to smuggle DNA or proteins across membranes. Once inside a cell, the DNA molecule could re-programme the cell for a particular action. Professor Maglia explains: "‪We are now able to engineer biological nanopores, but the difficult part is to precisely control the passage of molecules through the nanopores' doorways. We do not want the nanopore to let everything in. Rather, we want to limit entry to specific genetic information in specific cells."
‪Revolving door

Professor Maglia and his team succeeded in engineering a nanopore that works like a revolving door for DNA molecules. "We have introduced a selective DNA revolving door atop of the nanopore. Specific DNA keys in solution hybridise to the DNA door and are transported across the nanopore. A second DNA key on the other side of the nanopore then releases the desired genetic information. A new cycle can then begin with another piece of DNA - as long as it has the correct key. In this way, the nanopore acts simultaneously as a filter and a conveyor belt."

"In other words, we have engineered a selective transport system that can be used in the future to deliver medication into the cell. This could be of particular use in gene therapy, which involves introducing genetic material into degenerated cells in order to disable or re-programme them. It could also be used in targeted drug delivery, which involves administering medication directly into the cell. The possibilities are promising."

####

For more information, please click here

Contacts:
Giovanni Maglia

32-163-27696

Copyright © KU Leuven

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

The researchers’ findings were published in a recent edition of Nature Communications:

Related News Press

News and information

Discovery of nanotubes offers new clues about cell-to-cell communication July 2nd, 2015

Nanospiked bacteria are the brightest hard X-ray emitters July 2nd, 2015

Engineering the world’s smallest nanocrystal July 2nd, 2015

Producing spin-entangled electrons July 2nd, 2015

Nanomedicine

Iranian Scientists Find Simple, Economic Method to Synthesize Antibacterial Nanoparticles July 2nd, 2015

Leti Announces Launch of First European Nanomedicine Characterisation Laboratory: Project Combines Expertise of 9 Partners in 8 Countries to Foster Nanomedicine Innovation and Facilitate Regulatory Approval July 1st, 2015

Carnegie Mellon chemists characterize 3-D macroporous hydrogels: Methods will allow researchers to develop new 'smart' materials June 30th, 2015

Chitosan coated, chemotherapy packed nanoparticles may target cancer stem cells June 30th, 2015

Discoveries

The quantum middle man July 2nd, 2015

Freezing single atoms to absolute zero with microwaves brings quantum technology closer: Atoms frozen to absolute zero using microwaves July 2nd, 2015

Producing spin-entangled electrons July 2nd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

Announcements

Nanospiked bacteria are the brightest hard X-ray emitters July 2nd, 2015

Engineering the world’s smallest nanocrystal July 2nd, 2015

Producing spin-entangled electrons July 2nd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Nanospiked bacteria are the brightest hard X-ray emitters July 2nd, 2015

Engineering the world’s smallest nanocrystal July 2nd, 2015

Producing spin-entangled electrons July 2nd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project