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Protein That Stimulates Fat Formation Discovered

Date:
March 13, 2008
Source:
Karolinska Institutet
Summary:
Scientists have discovered a protein that plays a fundamental part in the formation of new fat cells. The protein has a potential use in the treatment of obesity and cachexia (morbid weight loss). The discovery of the protein, which is called TRAP and which is secreted by immune cells in fat tissue, provides new insights into the chronic fat tissue inflammation that characterizes obesity.

Scientists at the Swedish medical university Karolinska Institutet have discovered a protein that plays a fundamental part in the formation of new fat cells. The protein has a potential use in the treatment of obesity and cachexia (morbid weight loss).

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The discovery of the protein, which is called TRAP and which is secreted by immune cells in fat tissue, provides new insights into the chronic fat tissue inflammation that characterises obesity.

Using both cell cultures and mice studies, the researchers have shown that TRAP stimulates the formation of new fat cells and can thus precipitate the development of obesity. The results also show that patients with obesity have excessive levels of TRAP.

In malignant obesity, the fat cells are enlarged and less sensitive to insulin, which can lead to high glucose levels and type II diabetes. The scientists were able to show, however, that in mice TRAP gives rise to more benign fat cells of a normal size and metabolism.

"This protein is potentially useful in the treatment of conditions involving morbid cachexia, such as certain cancer diseases," says Professor G๖ran Andersson who has led the study with Professor Peter Arner. "The discovery can also lead to new ways pf treating obesity based on the inhibition of this protein s effect."

Journal reference: Pernilla Lๅng, Vanessa van Harmelen, Mikael Ryd้n, Maria Kaaman, Paolo Parini, Claes Carneheim, A Ian Cassady, David A Hume, G๖ran Andersson, Peter Arner. 'Monomeric Tartrate Resistant Acid Phosphatase Induces Insulin Sensitive Obesity.' PLoS One, 5 March 2008


Story Source:

The above story is based on materials provided by Karolinska Institutet. Note: Materials may be edited for content and length.


Cite This Page:

Karolinska Institutet. "Protein That Stimulates Fat Formation Discovered." ScienceDaily. ScienceDaily, 13 March 2008. <www.sciencedaily.com/releases/2008/03/080311091637.htm>.
Karolinska Institutet. (2008, March 13). Protein That Stimulates Fat Formation Discovered. ScienceDaily. Retrieved March 3, 2015 from www.sciencedaily.com/releases/2008/03/080311091637.htm
Karolinska Institutet. "Protein That Stimulates Fat Formation Discovered." ScienceDaily. www.sciencedaily.com/releases/2008/03/080311091637.htm (accessed March 3, 2015).

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