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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Selective A(2A) adenosine receptor activation reduces skin pressure ulcer formation and inflammation.

Activation of A(2A) adenosine receptors (A(2A)-AR) by ATL-146e (formerly DWH-146e) prevents inflammatory cell activation and adhesion. Recurrent ischemia-reperfusion (I/R) of the skin results in pressure ulcer formation, a major clinical problem. ATL-146e was evaluated in a novel reproducible rat model of pressure ulcer. A 9-cm(2) region of dorsal rat skin was cyclically compressed at 50 mmHg using a surgically implanted metal plate and an overlying magnet to generate reproducible tissue necrosis. Osmotic minipumps were implanted into 24 rats divided into four equal groups to infuse vehicle (control), ATL-146e (0.004 microg x kg(-1) x min(-1)), ATL-146e plus an equimolar concentration of A(2A) antagonist, ZM-241385, or ZM-241385 alone. Each group received 10 I/R cycles. In non-I/R-treated skin, ATL-146e has no effect on blood flow. I/R-treated skin of the ATL-146e group compared with the vehicle group had 65% less necrotic area, 31% less inhibition of average skin blood flow, and fewer extravasated leukocytes (23 +/- 3 vs. 49 +/- 6 per 500 microm(2)). These data suggest that ATL-146e, acting via an A(2A)-AR, reduces leukocyte infiltration and is a potent prophylactic for I/R injury in skin.[1]


  1. Selective A(2A) adenosine receptor activation reduces skin pressure ulcer formation and inflammation. Peirce, S.M., Skalak, T.C., Rieger, J.M., Macdonald, T.L., Linden, J. Am. J. Physiol. Heart Circ. Physiol. (2001) [Pubmed]
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