Navigation Links
New bacteria to fight against intestinal inflammation

This protection is provided by a human protein, Elafin, which is artificially introduced into dairy produce bacteria (Lactococcus lactis and Lactobacillus casei). In time, this discovery could be useful for individuals suffering from chronic inflammatory diseases such as Crohn's disease or ulcerative colitis. The results of this research were published in the Science Translational Medicine review on 31 October 2012.

In France, nearly 200,000 individuals suffer from chronic inflammatory bowel disease, known as IBD, (specifically Crohn's disease and ulcerative colitis). The occurrence rate of this type of disease continues to rise (8,000 new cases diagnosed per year). During inflammatory outbreaks, IBDs are chiefly characterised by abdominal pain, frequent diarrhoea (sometimes with bleeding) or even disorders in the anal area (fissure, abscesses). These symptoms mean that taboos are associated with these diseases.

Different avenues are being explored to explain the origin of IBDs, including the role of genetic or environmental factors. The intestinal flora seems to play an important role in the outbreak of inflammation, although little is known about it. Identifying an effective treatment is also at the heart of the investigations.

Researchers are focussing on a human protein, known for its anti-inflammatory proprieties: Elafin. Although this protein is found naturally in the intestine to protect it against attacks, it disappears in patients suffering from IBDs.

Their hypothesis? Administering Elafin directly into the intestine could protect against inflammatory attacks and restore intestinal equilibrium and its functions.

Using non-pathogenic bacteria found naturally in the intestine and food, scientists from Inserm and Inra have designed modified bacteria to produce Elafin. To this end, the human Elafin gene, isolated in collaboration with a team from the Institut Pasteau, was introduced in Lactococcus lactis and Lactobacillus casei, two food-grade bacteria found in dairy products.

Results in mice

When administered orally to mice, the human Elafin-producing bacteria are found a few hours later on the surface of the intestine where they deliver the anti-inflammatory protein. In different mice models of chronic or acute intestinal inflammation, oral treatment using these Elafin-producing bacteria provided significant protection of the intestine and decreased inflammatory symptoms.

and in humans

Elafin expressed by these bacteria also protects cultured human intestinal cell lines from inflammatory outbreaks similar to those observed in chronic inflammatory bowel diseases. Elafin produced in this way restores the equilibrium of intestinal mucus by reducing inflammation and accelerating cell healing processes.

Potential clinical applications

These results may result in a clinical application where Elafin would be administered to patients suffering from IBDs using beneficial bacteria (probiotic), which are already commonly found in food (yoghurt, cheese), thus protecting the patients from inflammatory symptoms. According to the researchers "This kind of secure treatment could even be used over the long-term, to treat inflammatory diseases."


Contact: Press Office
INSERM (Institut national de la sant et de la recherche mdicale)

Related medicine news :

1. Bacteria Found in Other Products From Firm Tied to Meningitis Outbreak: FDA
2. Crohns Disease in Children May Start From Bacteria
3. Scientists step up hunt for bacterial genes tied to Lyme disease
4. Oral bacteria may signal pancreatic cancer risk
5. Discovery of essential genes for drug-resistant bacteria reveals new, high-value drug targets
6. Superpowered Bacteria May Lurk Behind Sinus Infections
7. Feces-Linked Bacteria Found at Lake Erie Beaches
8. Could Bacteria in Skin Mites Help Cause Rosacea?
9. New antibacterial coating for sutures could reduce infections after surgery
10. Trudeau researchers identify unforeseen regulation of the anti-bacterial immune response
11. Microbiology and Genome Experts Quell Deadly Bacteria Outbreak
Post Your Comments:
(Date:11/28/2015)... (PRWEB) , ... November 28, 2015 , ... Trying to ... has created the COUCH BUDDY. "I conceived of this design due to personal experience ... for couch users. It promotes relaxation and convenience, as well as increases support. It ...
(Date:11/27/2015)... ... ... According to an article published November 13th on, much ... revolved around the fact that proper dental care, both at-home and in the dental ... periodontal disease (more commonly referred to as gum disease) and diabetes. According to Dr. ...
(Date:11/27/2015)... (PRWEB) , ... November 27, 2015 , ... A team ... ways to treat it. Surviving Mesothelioma has just posted the findings on the ... University Hospital Zurich analyzed the cases of 136 mesothelioma patients who were treated with ...
(Date:11/27/2015)... ... ... The print component of “Supporting Our Caregivers” is distributed ... Minneapolis, South Florida, with a circulation of approximately 250,000 copies and an estimated ... media strategy and across a network of top news sites and partner media ...
(Date:11/27/2015)... ... November 27, 2015 , ... ... Microsoft Dynamics SL User Group (MSDSLUG). Recognized as Microsoft’s official group for end ... Microsoft Dynamics SL software users, partners, industry experts and representatives. Intellitec Solutions’ membership ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... , November 26, 2015 ... A new combination approach blends immunotherapy with Bremachlorin-photodynamic therapy ... new combination approach blends immunotherapy with Bremachlorin-photodynamic therapy for ... new combination approach blends immunotherapy with Bremachlorin-photodynamic therapy for ... has found that immunotherapy can be efficiently ...
(Date:11/26/2015)... 2015 Research and Markets ( ... "2016 Future Horizons and Growth Strategies in the ... Country Segment Forecasts, Competitive Intelligence, Emerging Opportunities" ... --> --> This new 247-page ... therapeutic drug monitoring market, including emerging tests, technologies, ...
(Date:11/26/2015)... DUBLIN , Nov. 26, 2015 Research ... of the "Advanced Wound Care Market by Type ... Ulcers), End User (In-Patient Facility, Out-Patient Facility), and Geography ... offering. --> --> ... the description, definition and forecast of the global advanced ...
Breaking Medicine Technology: