- Medicine - Aug 24 Variants of vespid venom
- Life Sciences - Aug 16 278 from Aug 16, 2016 Fast Reactions Due to "Precision Protein" Scientists at Freie Universität, ...
- Life Sciences - Aug 9 DNA dominos on a chip
- Life Sciences - Jul 26 Lighting the way for second messengers
- Life Sciences - Jun 20 A protein showcases modern measuring and control technology
- Life Sciences - Jun 16 Two sensors for the price of one
- Medicine - May 19 Germs on the advance
- Environment - May 18 Nr. 159 vom May 18, 2016 Bridging in Biodiversity Science Scientists at Freie Universität Berlin, ...
- Life Sciences - Apr 26 How diet influences our genes
- Life Sciences - Apr 26 Bertalanffy Lecture on the Development Biology of Plants
- Life Sciences - Apr 5 Human Brain Project Presents New Technology Platforms
- Life Sciences - Mar 16 Neuromorphic Computer Coming Online
- Life Sciences - Mar 4 Over a Million Euros of Funding for Interdisciplinary Research
- Life Sciences - Jan 20 Muscle Weakness: Berlin Scientists Unravel Defects in Rare Hereditary Disease Myotubular Myopathy
- Chemistry - Nov 11 Accolade for a chemist
Medicine from Moss
Biologists at the University of Freiburg, Germany, have produced in the moss bioreactor a human protein, the absence of which leads to age-related blindness in 50 million people.
Diabetics use human insulin produced in bacteria in order to treat their metabolic disorder. Many other genetically engineered proteins are also on the advance. They are being used for diagnosis as well as for therapy.
Whereas insulin used to be extracted from slaughterhouse waste today it is produced genetically in bacteria. However, more complex proteins have to be synthesised in more complex organisms. This takes place mostly in bioreactors using animal cell lines. Biotechnologist Prof. Ralf Reski from Freiburg, Germany, has developed the moss Physcomitrella patens into a safe and inexpensive alternative supplier of medicine.
His group has now, under Dr. Eva Decker, for the first time succeeded in producing a human protein in a moss bioreactor, which has been assigned the "orphan drug" status by the respective EU authorities. This means the development and approval of such medication receive particular support from the authorities. In many people the amount of this protein decreases with old age - with severe consequences. Eva Decker explains: "With the complement factor H we have produced a protein in moss that otherwise occurs only in blood and is important for the immune system. Not enough of this protein in older people is the main cause of blindness for 50 million people worldwide. This age-related macular degeneration (AMD) is a problem, particularly in industrialised countries ."
Biochemists from the Freiburg Centre for Systems Biology under Dr. Andreas Schlosser were able to show with the help of high-performance mass spectrometers that the human factor H engineered into and produced by moss was a complete protein. Infection biologists headed by Prof. Peter F. Zipfel from the Hans-Knöll-Institute in Jena, Germany, were able to prove in biological assays that factor H from moss is fully functional. "Currently factor H is not available in pharmacies, so treatment for AMD with this protein is not possible. To date recombinant production of factor H was barely feasible. I am convinced that for the first time the moss bioreactor is a promising option", says Peter Zipfel.
This work was supported by the German Federal Ministry of Education and Research (BMBF), the Freiburg Initiative for Systems Biology and the Cluster of Excellence BIOSS.
The title of the original publication is: Annette Büttner-Mainik, Juliana Parsons, Hanna Jér ôme, Andrea Hartmann, Stephanie Lamer, Andreas Schaaf, Andreas Schlosser, Peter F. Zipfel, Ralf Reski, Eva L. Decker (2010): Production of biologically active recombinant human Factor H in Physcomitrella. Plant Biotechnology Journal, doi: 10.1111/j.1467-7652.2010.00552.x.
"It will take a while before medication produced in moss is available in pharmacies", says Ralf Reski, member of the Innovation Think Tank of the governor of Baden-Wuerttemberg. "We are further optimising the moss bioreactor using methods from Systems Biology and Synthetic Biology. However, the implementation of clinical studies and the setting up of industrial production is long-winded and expensive; this is the task of industry and not of university research."
D r. Eva Decker
P lant Biotechnology
Faculty of Biology
Last job offers
- Life Sciences - 30.8
Postdoctoral research position
- Agronomy/Food Science - 25.8
Full Professorship for ’Food Chain Management’ (W3)
- Medicine/Pharmacology - 24.8
Juniorprofessur für Biophysik (W1)
- Veterinary Science - 19.8
- Medicine/Pharmacology - 18.8
Professur (W2) auf Zeit (5 Jahre)
- Life Sciences - 16.8
Postdoc position in Single cell genomics for cancer evolution (Uni)
- Life Sciences - 10.8
Professur für, Pflanzenbau"
- Life Sciences - 10.8
Full Professorship for ’Crop Science’ (W3)