Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


A crucial role for TGFbeta signaling in congenital eye disorders


The lens in the developing eye acts as a TGFbeta signaling center that controls differentiation, survival and formation of multiple eye structures deriving from the neural crest. A study published today in the open access journal Journal of Biology shows that neural crest (NC) derived cells contribute to both anterior and posterior parts of the developing mammalian eye. NC cells migrate properly in the eye but fail to differentiate in the absence of TGFbeta signaling. The activity of TGFbeta is mediated by the two transcription factors Foxc1 and Pitx2 that have been implicated in human eye disorders. These findings shed light on the origin of congenital eye disorders that can give rise to glaucoma and blindness: Axenfeld-Rieger’s anomaly and persistent hyperplastic primary vitreous.

Lukas Sommer, from the Institute of Cell Biology at the ETH in Zurich, Switzerland, heading an international team including Lars Ittner, used in vivo cell fate mapping in mice. They show that NC-derived cells can be found in the eye vesicle of mouse embryos, soon after it is formed. NC-derived cells subsequently contribute to various structures of the developing eye, and Ittner et al. show for the first time an NC contribution to the primary vitreous.

TGFbeta receptor type 2, Tgfbr2, was inactivated to study the importance of the signaling pathway in NC-derived cells. In these mice, the eyes were reduced in size and the lens and cornea failed to separate. The authors show that TGFbeta signaling is crucial for proper differentiation and morphogenesis of NC-derived cells in eye structures. Conceivably, TGFbeta might be able to support differentiation not only during eye development but also at later stages. If so, this might open up new strategies for promoting regeneration of eye structures, for example in patients suffering from loss of corneal transparency.

Grace Baynes | EurekAlert!
Further information:

More articles from Life Sciences:

nachricht Strong, steady forces at work during cell division
20.10.2016 | University of Massachusetts at Amherst

nachricht Disturbance wanted
20.10.2016 | Max Delbrück Center for Molecular Medicine in the Helmholtz Association

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Innovative technique for shaping light could solve bandwidth crunch

20.10.2016 | Physics and Astronomy

Finding the lightest superdeformed triaxial atomic nucleus

20.10.2016 | Physics and Astronomy

NASA's MAVEN mission observes ups and downs of water escape from Mars

20.10.2016 | Physics and Astronomy

More VideoLinks >>>