Learning the ABCs of ATP release.

Andrew E Libby, Bryce Jones, Moshe Levi

The Journal of biological chemistry 2020 Apr 17

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ATP plays important roles outside the cell, but the mechanism by which it is arrives in the extracellular environment is not clear. Dunn et al now show that decreases in cellular cholesterol levels mediated by the ABCG1 transporter increase ATP release by volume-regulated anion channels under hypotonic conditions. Importantly, these results may imply that cells that handle cholesterol differently might experience differential extracellular ATP release during hypotonicity. © 2020 Libby et al.