Researchers discover new inflammation inhibitor
Anti-inflammatory drug molecule with a new mechanism of action has been developed by a multidisciplinary team of researchers led from Karolinska Institutet in Sweden, according to a new study published in the journal Science. The drug works by inhibiting a certain protein that results in a reduction of the signals triggering an inflammation.
The discovery is the result of many years of research by Thomas Helleday, professor, Department of Oncology-Pathology, Karolinska Institutet, Sweden, and colleagues. One of the objectives has been to fight cancer by targeting damage to the tumour cells' DNA. Several breakthroughs have already been reported, which have led, amongst other things, to a new treatment for congenital breast and ovarian cancer using so-called PARP inhibitors, which has been available for some years.
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"We've developed a new drug molecule that inhibits inflammation," says Dr. Helleday. "It acts on a protein that we believe is a general mechanism for how inflammation arises in cells."It was when developing a new molecule for inhibiting the enzyme that repairs oxygen damage to DNA that the researchers found, to their surprise, that it also dampened inflammation. It turned out that the enzyme OGG1, apart from repairing DNA, also triggers inflammation.
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The inhibitor blocks the release of inflammatory proteins, such as TNF alpha. In trials on mice with acute pulmonary disease, the researchers succeeded in dampening the inflammation.
"This discovery could give rise to a new treatment for a very serious condition," says Professor Helleday. "We'll now be developing our OGG1 inhibitor and examining whether it can lead to new treatments for inflammatory diseases in order to cure or relieve diseases such as sepsis, COPD and severe asthma."
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