News

Food for Thought: Weekly Wrap-Up

This week, Frankfurter Allgemeine Zeitung (FAZ) deals with potential origins of the enterohemorrhagic E. coli (EHEC) epidemic in Germany. Christina Hucklenbroich details the consequences of feeding cattle mixed provender, a forage that changes the environment of the intestinal tract so that it becomes an ideal habitat for bacteria like E. coli. In a separate article the same author deals with an EHEC outbreak in 1997 in the US which affected mostly women – similar to the current epidemic in Germany. Back then, the source had been alfalfa sprouts used in salads. While the ultimate source had never been found, scientists suspected that already the seeds had been contaminated. Richard Friebe, also in FAZ, deals with slurry from pigs, cattle, and fowl that is know to contain all sorts of bacteria and viruses. It is used either directly as fertilizer (though not on vegetables and salad plants) or may contaminate adjacent fields through spillover, spray or via irrigation using water contaminated with slurry.

Susanne Kutter in Wirtschaftswoche introduces Holger Zinke, co-founder and CEO of BRAIN AG, a biotech company specialized on “white” biotechnology, using the skills of microbes to re-design industrial processes or to come up with entirely new ones. Thereby, pharma and chemical industry can save energy, money, and expenses for raw materials. The article is part of a series on pioneers of the “greentech-era”, trying to change the industry to make it more energy-efficient and sustainable.

In Forbes, Matthew Herper analyses why scientists in Germany and China used small desktop sequencers by Ion Torrent rather than big machines by Illumina, Life or 454 Life Sciences to decipher the sequence of the EHEC strain rampaging through Germany. Herper claims it is speed and cost. However, the choice was also influenced by the fact that the sequence of the new strain matched strains with sequences available in public databases relatively closely so that puzzling together the short sequence data generated by the machine was easy.

In reporting on this year’s annual conference of the American Society of Clinical Oncology (ASCO), Andrew Pollack in The New York Times (NYT) introduces two drugs for the treatment of melanoma: vemurafenib (developed by Genentech, part of Roche Group), which attacks a specific mutation accelerating tumor growth and Yervoi ipilimumab (developed by Bristol-Myers Squibb), which unleashes the body’s immune system to fight the cancer. Yervoi was approved by FDA in March this year. Pollack also features latest clinical results for Aromasin exemestane, a drug marketed for preventing recurrences of breast cancer.

Gina Kolata, also in NYT, deals with the phenomenon of “linguistic toxicity”, i.e. drug labels listing more and more side effects, even contradictory ones such as that a medication can cause diarrhea or constipation. As of today, drug labels in the US list an average of 94 side effects (the top numbers already are exceeding 500), despite efforts of FDA to make drug makers avoid listing of side effects that are infrequent and minor, commonly observed in the absence of drug therapy or not plausibly related to drug therapy. Main reason is pharma companies trying to protect themselves against lawsuits.

Last not least, New Scientist features the latest advice for those of you on diet: psychologist found that if you succeed convincing yourself that everything you eat bears enormous amounts of calories, your ghrelin hormone level will drop much lower after eating so that you feel being full faster.

Food for Thought: Weekly Wrap-Up

Joachim Müller-Jung in Frankfurter Allgemeine Zeitung (FAZ) reports on the rapid spread of infections with enterohemorrhagic Escherichia coli (EHEC) in Germany. In about 20-25% of cases, the disease leads to the life-threatening hemolytic uremic syndrome (HUS) associated with kidney failure. Jung reports about promising treatment strategies using Soliris eculizumab. The monoclonal antibody by Alexion Pharmaceuticals has been approved in the US and the EU in 2007 for the treatment of paroxysmal nocturnal hemoglobinuria.

Also in FAZ, Nicola von Lutterotti features results from molecular psychiatry studies in children brought up in orphanages and adults suffering from trauma. Results demonstrate that there is a strong association between length of stay in an orphanage and factors like learning ability as well as length of telomers. Adults suffering severe trauma during childhood also have significantly shorter telomers.

In Focus, Monika Preuk reports on instant dental implants for diabetics, osteoporosis patients and smokers. These patients often cannot undergo conventional implantation procedures that need careful planning and complex steps of building bone material, placement of titanium posts and periods of long healing times. The new method involves skewed planting of very long implants into the healthy parts of the jawbones. The method stabilizes the jawbone so that implants can be planted within a day.

Matthew Herper in Forbes introduces the 25 most innovative countries in biology and medicine based on data provided by SciVal analytics, an Elsevier division. The complex analysis is based on publications output, number of citations, etc. Still the US dominates the fields, and papers by US scientists are more likely to be cited by other researchers than those in any country – except the Netherlands and Switzerland.

Andrew Pollack in the New York Times introduces Sherwood L. Gorbach, a researcher who helped to develop Dificid, a novel antibiotic against severe diarrheas. The drug by Optimer Pharmaceuticals has just been approved by FDA for the treatment of Clostridium difficile-associated diarrhea.

The Economist features new attempts to vaccinate people against drug abuse. The challenging task is to develop an effective vaccine against  really small and therefore very flexible molecules. A new trick applied for the design of a metamphetamine vaccine uses computer models to design haptens mimicking various metamphetamine-shapes and using these haptens to generate antibodies. Already it has been possible to generate efficacious metamphetamine-antibodies in mice with this method.

And finally, Die Zeit this week deals with the question whether mosquitos get drunk upon sucking blood from drunk people. The answer to the question is that after the blood meal, the mosquitos have about half the blood alcohol concentration of their victim. However, it is unclear whether they show behavioral deficits thereafter. 😉

Company News: SuppreMol Obtains Option to In-License Antibody Against Interleukin 3 for Rheumatoid Arthritis

SuppreMol GmbH, a privately held biopharmaceutical company developing innovative therapeutics for the treatment of autoimmune diseases, today announced that it has closed an agreement to in-license an antibody directed against interleukin 3 (IL-3), which has been developed by the Molecular Immunology research group led by Prof. Dr. Matthias Mack at the University of Regensburg.

IL-3, a growth factor primarily produced by activated T cells, stimulates growth and differentiation of monocytes, basophils and other leukocyte populations from the bone marrow in an immune response. Recently, the team of Prof. Mack was able to demonstrate that IL-3 plays an important role in the onset of Rheumatoid Arthritis, an autoimmune disease characterized by a chronic inflammation of the joints and other organs affecting up to one percent of the population in the industrialized world. The disease commonly leads to significant disability and reduction in the quality of life and is connected with significant costs for patients and the health care systems.

Therapy with an antibody-based IL-3 inhibitor, either in early stages or during flares and exacerbations, may provide a new class of treatment for patients suffering from Rheumatoid Arthritis.

Further details can be found here.

 

Company News: Curetis AG Successfully Increases Series A Round to EUR 24.5 Million

Curetis AG, an innovative molecular diagnostics company focusing on the development and commercialization of in-vitro diagnostic products for infectious diseases, today announced an extension of its Series A financing, bringing the total size of the round to € 24.5 million. CD-Venture joined the funding as a new investor, while all of Curetis’ existing VC investors participated in the round. Several private investors also continued to co-invest.

Following the appointment of Oliver Schacht, PhD, as the new CEO of Curetis last month, this financing transaction is the first step towards funding next year’s commercial launch and roll-out of the Unyvero product platform together with the first CE marked IVD test cartridge for pneumonia and antibiotic resistances in Europe. The additional funds will allow Curetis to pursue a more aggressive strategy towards initiating a US clinical trial in H2-2011 with a goal of filing for FDA approval in 2012. This Series A financing positions Curetis as a solidly funded molecular diagnostics company with near-term commercial-stage products and its unique platform solution addressing a clear unmet medical need in the rapid diagnosis of infectious diseases and antibiotic resistance.

Curetis’ CEO Oliver Schacht will present an update on the company at the upcoming BioEquity 2011 in Paris. The presentation is scheduled for May 23, 2011, at 5:00 pm CET, Room Pont de Sully.

Further details can be found here.

 

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