Dossier - 20/01/2014

Optogenetics switching cell activity on and off with light

What still sounds like science fiction to the general public has long been within reach for many years scientists have been able to manipulate neural activity selectively with light. They use different wavelengths to turn cells on and off as if they were a standard switch. Optogenetics is an emerging technology that combines optics and genetics. The technology is already used in many different ways for many different purposes by numerous research…

The 15-year history of RNA interference is not short on dramatic effects. It begins with the unexpected discovery and publication of the process of post-transcriptional gene silencing in 1998 for which the two Americans Andrew Fire and Craig Mello were awarded the Nobel Prize in Physiology or Medicine just eight years after their discovery. In 2001 Thomas Tuschl succeeded in switching off genes in human cells with small synthetic pieces of RNA…

Dossier - 15/10/2013

Adult stem cells hope for regenerative therapies

Adult stem cells have the lifelong ability to generate new specialised cells. They secure the continuous replenishment of cells therefore enabling the constant replacement of dying cells with new ones. Progress in the characterisation isolation and specific differentiation of adult stem cells over recent years raises hopes for the future use of the cells in the therapy of degenerative diseases. Knowledge about adult stem cells also has the…

Dossier - 21/05/2013

No new drugs to be placed on the market without clinical trials

New pharmaceuticals are subject to approval by drug authorities. Prior to approval of a new pharmaceutical several hurdles such as preclinical and clinical studies need to be cleared. Clinical trials are performed to ensure the quality efficacy and safety of a medicinal product. Clinical development is a time-consuming and costly process and takes on average ten to fifteen years before a pharmaceutical company can apply for the approval of the…