( An unusual distribution of two proteins...)Proteins in lungs of patients with cystic fibrosis,Health

An unusual distribution of two proteins has been found in the lungs and airways of people with cystic fibrosis. //

Researchers feel that this finding can help in determining how the disease progresses. The proteins were uncovered as a result of the human genome project and are thought to play a role in the body's immune system. Finding out more about the proteins could help sort out the immune system's role in cystic fibrosis, a genetic disease that attacks the lungs and other organs and dramatically shortens life expectancy.

The study "Comparative expression of SPLUNC1, SPLUNC2 and LPLUNC1 in normal and diseased lungs," was carried out by Lynne Bingle of the University of Sheffield School of Clinical Dentistry, Sheffield, United Kingdom, and Colin Bingle, University of Sheffield Medical School, Sheffield. It was presented at a meeting of The American Physiological Society, "Physiological Genomics and Proteomics of Lung Disease,".

"Our results show unique expression domains for (the proteins) within the airways and suggest that alterations in expression of these putative innate immune molecules may be associated with lung disease," the authors wrote.

Recently discovered proteins

"We've shown these proteins to be expressed in places like the upper airways, nose and mouth, where many bacteria and infectious agents are found," Bingle said. These tiny molecules are thought to be part of the first line of the body's defenses against infectious agents, Bingle said.

The human genome project localized the PLUNC (palate, lung and nasal epithelium clone) gene to chromosome 20. A genetic locus in this region directs the production of a family of at least 10 proteins. Some of the proteins are short, referred to as "SPLUNCs," while others are long, referred to as "LPLUNCs."

Researchers have found that these proteins locate in specific places in the bodies of healthy people. Because these proteins are fo
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