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Researchers discover a new pathway in blood vessel inflammation and disease
Date:9/4/2013

Case Western Reserve researchers have identified a genetic factor that blocks the blood vessel inflammation that can lead to heart attacks, strokes and other potentially life-threatening events.

The breakthrough involving Kruppel-like factor (KLF) 15 is the latest in a string of discoveries from the laboratory of professor of medicine Mukesh K. Jain that involves a remarkable genetic family. Kruppel-like factors appear to play prominent roles in everything from cardiac health and obesity to metabolism and childhood muscular dystrophy.

School of Medicine instructor Yuan Lu, MD, a member of Jain's team, led the study involving KLF-15 and its role in inflammation, which appears online this week in the Journal of Clinical Investigation. Lu and colleagues observed that KLF-15 blocks the function of a molecule called NF-kB, a dominant factor responsible for triggering inflammation.

This finding reveals a new understanding of the origins of inflammation in vascular diseases, and may eventually lead to new, targeted treatment options.

"It had been suspected that smooth muscle cells were related to inflammation, but it hadn't been pinpointed and specifically linked to disease," said Jain, Ellery Sedgwick Jr. Chair and director, Case Cardiovascular Research Institute at Case Western Reserve School of Medicine. Jain also is chief research officer for the Harrington Heart & Vascular Institute at University Hospitals Case Medical Center. "This work provides cogent evidence that smooth muscle cells can initiate inflammation and thereby promote the development of vascular disease."

Smooth muscle cells are only one of two major cell types within blood vessels walls. The other cell type, endothelium, has traditionally taken the blame for inflammation, but Jain's study suggests that both cells are critically important in the development of vascular disease.

The researchers learned that expression of this factor appe
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Contact: Jessica Studeny
jes91@case.edu
216-368-4692
Case Western Reserve University
Source:Eurekalert

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