Navigation Links
Smile: Gingivitis bacteria manipulate your immune system so they can thrive in your gums
Date:1/3/2013

A new research report published in the Journal of Leukocyte Biology shows how the bacteria known for causing gum disease--Porphyromonas gingivalis--manipulates the body's immune system to disable normal processes that would otherwise destroy it. Specifically, the report shows that this pathogen prompts the production of the anti-inflammatory molecule Interleukin-10 (IL-10). This, in turn, inhibits the function of T-cells, which would otherwise help to protect the host from this particular microbial infection.

"Since greater than 50 percent of the U.S. population over 50 years-of-age develop adult periodontal disease, we hope that the results of our study will ultimately help in the development of novel treatments that could prevent or ameliorate the chronic infection caused by the pathogen P. gingivalis,'" said Jannet Katz, D.D.S., Ph.D., a researcher involved in the work from the Department of Pediatric Dentistry at the University of Alabama in Birmingham.

To make this discovery, scientists used cells from mice that were exposed to P. gingivalis. One portion of the cells was treated with an inhibiting antibody against IL-10 and the other portion of cells was not treated. All of the cells were then tested for interferon gamma production. An increase of interferon gamma production was seen in the treated cells, but no increase was found in the untreated cells. These findings suggest that the damage done by P. gingivalis happens when the immune cells of the host are first exposed to this pathogen, and further implies that for treatment to be successful, it must be started as early as possible. This study highlights the mechanism by which P. gingivalis can establish a chronic infection in the form of periodontal disease and provides insight into how the disease develops. Results also demonstrate the importance of very early intervention either by eradication of the bacterium with specifically designed therapeutics or by prevention via the development of an effective vaccine.

"Gum diseases and the infections that cause them can be incredibly stubborn and difficult to treat," said John Wherry, Ph.D., Deputy Editor of the Journal of Leukocyte Biology. "What isn't as well known is why these infections are so difficult to eradicate. These new studies now demonstrate that these bacteria go beyond merely evading our body's defenses and actually manipulate our immune systems for their own survival."


'/>"/>

Contact: Cody Mooneyhan
cmooneyhan@faseb.org
301-634-7104
Federation of American Societies for Experimental Biology
Source:Eurekalert

Related biology news :

1. Leading evolutionary scientist to discuss how genome of bacteria has evolved
2. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
3. Team discovers how bacteria resist a Trojan horse antibiotic
4. From scourge to saint: E. coli bacteria becomes a factory - to make cheaper, faster pharmaceuticals
5. Bacterial shock to recapture essential phosphate
6. Disarming disease-causing bacteria
7. Study shows unified process of evolution in bacteria and sexual eukaryotes
8. Invisible helpers: How probiotic bacteria protect against inflammatory bowel diseases
9. Researchers develop rapid test strips for bacterial contamination in swimming water
10. Bacteria discovery could lead to antibiotics alternatives
11. Agricultural bacteria: Blowing in the wind
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/21/2016)... , March 22, 2016 ... with passcodes for superior security   ... leading provider of secure digital communications services, today announced ... technology and offer enterprise customers, particularly those in the ... recognition and voice authentication within a mobile app, alongside, ...
(Date:3/14/2016)... 2016 NXTD ) ("NXT-ID" or the ... announces the airing of a new series of commercials on ... March 21 st .  The commercials will air on Bloomberg ... on the Street show. --> NXTD ) ("NXT-ID" ... commerce market, announces the airing of a new series of ...
(Date:3/10/2016)... Pa. , March 10, 2016   Unisys Corporation ... Customs and Border Protection (CBP) is testing its biometric ... San Diego to help identify certain non-U.S. ... . The test, designed to help determine the efficiency ... environment, began in February and will run until May 2016. ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... ... 25, 2016 , ... Lajollacooks4u has become a rising hotspot for specialized team ... its top attractions. Fortune 500 companies, such as Illumina, Hewlett-Packard, Qualcomm and Elsevier, ... team-building experience. , Each event kicks off with an olive oil and salt-tasting competition. ...
(Date:5/25/2016)... ... May 25, 2016 , ... The American Medical Informatics Association ... the National Coordinator for Health IT (ONC) outlining a measurement approach to interoperability ... available when and where it was needed. The organization of health informatics professionals ...
(Date:5/25/2016)... ... May 25, 2016 , ... ... Drug Administration (FDA) has granted the company’s orphan drug designation request covering BHV-4157 ... drug designation granted by the FDA. , Spinocerebellar ataxia is a rare, ...
(Date:5/24/2016)... Maryland (PRWEB) , ... May 24, 2016 , ... ... of a newly re-branded identity. The new Media Cybernetics corporate branding reflects a ... world of imaging and image analysis. The re-branding components include a crisp, refreshed ...
Breaking Biology Technology: