News Column

Reports on Extracellular Matrix Proteins Findings from Newcastle University Provide New Insights

June 20, 2014

By a News Reporter-Staff News Editor at Health & Medicine Week -- A new study on Proteins is now available. According to news reporting originating in Newcastle-upon-Tyne, United Kingdom, by NewsRx journalists, research stated, "To use a novel computational approach to examine the molecular pathways involved in cartilage breakdown and to use computer simulation to test possible interventions for reducing collagen release. We constructed a computational model of the relevant molecular pathways using the Systems Biology Markup Language, a computer-readable format of a biochemical network."

The news reporters obtained a quote from the research from Newcastle University, "The model was constructed using our experimental data showing that interleukin-1 (IL-1) and oncostatin M (OSM) act synergistically to up-regulate collagenase protein levels and activity and initiate cartilage collagen breakdown. Simulations were performed using the COPASI software package. The model predicted that simulated inhibition of JNK or p38 MAPK, and overexpression of tissue inhibitor of metalloproteinases 3 (TIMP-3) led to a reduction in collagen release. Overexpression of TIMP-1 was much less effective than that of TIMP-3 and led to a delay, rather than a reduction, in collagen release. Simulated interventions of receptor antagonists and inhibition of JAK-1, the first kinase in the OSM pathway, were ineffective. So, importantly, the model predicts that it is more effective to intervene at targets that are downstream, such as the JNK pathway, rather than those that are close to the cytokine signal. In vitro experiments confirmed the effectiveness of JNK inhibition. Our study shows the value of computer modeling as a tool for examining possible interventions by which to reduce cartilage collagen breakdown."

According to the news reporters, the research concluded: "The model predicts that interventions that either prevent transcription or inhibit the activity of collagenases are promising strategies and should be investigated further in an experimental setting."

For more information on this research see: A computer simulation approach to assessing therapeutic intervention points for the prevention of cytokine-induced cartilage breakdown. Arthritis & Rheumatology, 2014;66(4):979-89 (see also Proteins).

Our news correspondents report that additional information may be obtained by contacting C.J. Proctor, MRC-Arthritis Research UK Centre for Integrated Research into Musculoskeletal Ageing and Newcastle University, Newcastle upon Tyne, UK. Additional authors for this research include C. Macdonald, J.M. Milner, A.D. Rowan and T.E Cawston.

Keywords for this news article include: Europe, Collagen, Cytokines, United Kingdom, Newcastle-upon-Tyne, Extracellular Matrix Proteins, Intercellular Signaling Peptides and Proteins.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

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Source: Health & Medicine Week

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