Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New research finds major activation themes in denture-stomatitis

16.07.2010
Today during the 88th General Session & Exhibition of the International Association for Dental Research, in Barcelona, Spain, S. Offenbacher will present an abstract titled "Mucosal Gene Expression and Salivary Proteomic Analysis of Candidiasis-Associated Denture-Stomatitis."

The goal of the study was to compare whole-transcriptome, mucosal gene expression in Candida albicans (a parasitic fungus that can infect the mouth) associated chronic denture stomatitis to that of healthy oral mucosa and perform proteomic analyses of potential salivary biomarkers. Denture stomatitis is a condition in which the mucosa underneath a denture becomes inflamed and sometimes painful.

In this study, oral palatal biopsies were obtained from 17 healthy and 15 C. albicans-infected stomatitis subjects for whole-transcriptome analyses using Affymetrix arrays. The presence of C. albicans was confirmed by cytology and cultivable methods and the clinical severity of the stomatitis and denture fit evaluated by the Newton and Kapur Classifications.

A false discovery rate (FDR) of
Saliva was analyzed by two-dimensional liquid chromatography and tandem mass spectrometry for proteomic identification of salivary proteins associated with oral Candidiasis.

Microarray analysis of mRNA expression revealed 3034 genes-in-play differentially expressed in C. albicans stomatitis. 235 genes were upregulated >2-fold including key cytokines [IL1F6, IL1B], chemokines [CXCL1, CCL10, IL8] as well as markers of epithelial suppression and neutrophil recruitment/ activation. Seventy-one genes were down-regulated >2-fold including epithelial adhesion molecules and keratins. Five of the 6 most significant gene ontology pathways involve inflammation and activation of the immune response with CD28 and CTLA signaling of Tcells. There was strong up-regulation of TLR2, CD14, MYD88, IKKA and NFKB as the dominant toll-like receptor signaling pathway. Six extracellular protein genes up-regulated in stomatitis were confirmed within the saliva using proteomic methods.

Neutrophil recruitment activation, epithelial suppression, TLR2 pathway up-regulation, T cell activation and bone resorption appear as major activation themes in stomatitis.

This is a summary of abstract #2012, "Mucosal Gene Expression and Salivary Proteomic Analysis of Candidiasis-Associated Denture-Stomatitis," to be presented by S. Offenbacher at 9 a.m., Friday, July 16, 2010 in Room 117 of the Centre Convencions Internacional Barcelona, Spain during the 88th General Session & Exhibition of the International Association for Dental Research. This research is supported by NIH RR00046, UL1RR025747 and GlaxoSmithKline.

About the International Association for Dental Research

The International Association for Dental Research (IADR) is a nonprofit organization with more than 12,000 individual members worldwide, dedicated to: (1) advancing research and increasing knowledge to improve oral health, (2) supporting the oral health research community, and (3) facilitating the communication and application of research findings for the improvement of oral health worldwide.

Ingrid L. Thomas | EurekAlert!
Further information:
http://www.iadr.org

More articles from Health and Medicine:

nachricht Laser activated gold pyramids could deliver drugs, DNA into cells without harm
24.03.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences

nachricht What does congenital Zika syndrome look like?
24.03.2017 | University of California - San Diego

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>