alexa Recognition of cytosolic DNA attenuates glucose metabolism and induces AMPK mediated energy stress response.
Chemistry

Chemistry

Medicinal Chemistry

Author(s): Zheng M, Xie L, Liang Y, Wu S, Xu H,

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Abstract Both viral infection and DNA transfection expose single-stranded or double-stranded DNA to the cytoplasm of mammalian cells. Recognition of cytosolic DNA activates a series of cellular responses, including induction of pro-inflammatory genes such as type I interferon through the well-known cGAS-STING pathway. Here we show for the first time that intracellular administration of either single or double stranded interferon stimulating DNA (ISD), but not poly(dA) suppresses cell growth in many different cell types. Suppression of cell growth by cytosolic DNA is cGAS/STING independent and associated with inhibition of glucose metabolism, ATP depletion and subsequent cellular energy stress responses including activation of AMPK and inactivation of mTORC1. Our results suggest that in concert with but independent of innate immune response, recognition of cytosolic DNA induced cellular energy stress potentially functions as a metabolic barrier to viral replication.
This article was published in Int J Biol Sci and referenced in Medicinal Chemistry

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