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- W4285404886 endingPage "110408" @default.
- W4285404886 startingPage "110408" @default.
- W4285404886 abstract "Freeze-tolerant species, such as wood frogs (Rana sylvatica), are susceptible to multiple co-occurring stresses that they must overcome to survive. Freezing is accompanied by mechanical stress and dehydration due to ice crystal formation in the extracellular space, ischemia/anoxia due to interruption in blood flood, and hyperglycemia due to cryoprotective measures. Wood frogs can survive dehydration, anoxia, and high glucose stress independently of freezing, thereby creating a multifactorial model for studying freeze-tolerance. Oxidative stress and high glucose levels favors the production of pro-oxidant molecules and advanced glycation end product (AGE) adducts that could cause substantial cellular damage. In this study, the involvement of the high mobility group box 1 (HMGB1)-AGE/RAGE (receptor for AGE) axis and the regulation of ETS1 and EGR1-mediated angiogenic responses were investigated in liver of wood frogs expose to freeze/thaw, anoxia/reoxygenation and dehydration/rehydration treatments. HMGB1 and not AGE-adducts are likely to induce the activation of ETS1 and EGR1 via the RAGE pathway. The increase in nuclear localization of both ETS1 and EGR1, but not DNA binding activity in response to stress hints to a potential spatial and temporal regulation in inducing angiogenic factors. Freeze/thaw and dehydration/rehydration treatments increase the levels of both pro- and anti-angiogenic factors, perhaps to prepare for the distribution of cryoprotectants or enable the repair of damaged capillaries and wounds when needed. Overall, wood frogs appear to anticipate the need for angiogenesis in response to freezing and dehydration but not anoxic treatments, probably due to mechanical stress associated with the two former conditions." @default.
- W4285404886 created "2022-07-14" @default.
- W4285404886 creator A5007679326 @default.
- W4285404886 creator A5074785536 @default.
- W4285404886 date "2022-10-01" @default.
- W4285404886 modified "2023-09-24" @default.
- W4285404886 title "RAGE management: ETS1- EGR1 mediated transcriptional networks regulate angiogenic factors in wood frogs" @default.
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- W4285404886 doi "https://doi.org/10.1016/j.cellsig.2022.110408" @default.
- W4285404886 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35842171" @default.
- W4285404886 hasPublicationYear "2022" @default.
- W4285404886 type Work @default.