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• W2067680984 startingPage "1042" @default.
• W2067680984 abstract "Transglutaminase 2 (TG2) is a very multifunctional protein that is ubiquitously expressed in the body. It is a Ca(2+)-dependent transamidating enzyme, a GTPase, as well as a scaffolding protein. TG2 is the predominant form of transglutaminase expressed in the mammalian nervous system. Previously, it was shown that TG2 can affect both cell death and cell survival mechanisms depending on the cell type and the stressor. In the case of ischemic stress, TG2 was previously shown to play a protective role in the models used. For example in hTG2 transgenic mice, where TG2 is overexpressed only in neurons, middle cerebral artery ligation (MCAL) resulted in smaller infarct volumes compared to wild type mice. In this study TG2 knock out mice were used to determine how endogenous TG2 affected stroke volumes. Intriguingly, infarct volumes in TG2 knock out mice were significantly smaller compared to wild type mice. As expected, primary neurons isolated from TG2 knock out mice showed decreased viability in response to oxygen-glucose deprivation. However, primary astrocytes that were isolated from TG2 knock out mice were resistant to oxygen-glucose deprivation in situ. Both wild type and knock out neurons were protected against oxygen glucose deprivation when they were co-cultured with astrocytes from TG2 knockout mice. Therefore, the decreased stroke volumes observed in TG2 knock out mice after MCAL, can be correlated with the protective effects of TG2 knock out in astrocytes in response to oxygen glucose deprivation in situ. These findings suggest that neuron-astrocyte crosstalk plays a significant role in mediating ischemic cell death and that TG2 differentially impacts cell survival depending on cell context." @default.
• W2067680984 created "2016-06-24" @default.
• W2067680984 creator A5016229715 @default.
• W2067680984 creator A5025207687 @default.
• W2067680984 date "2012-03-01" @default.
• W2067680984 modified "2023-09-27" @default.
• W2067680984 title "Complete transglutaminase 2 ablation results in reduced stroke volumes and astrocytes that exhibit increased survival in response to ischemia" @default.
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• W2067680984 doi "https://doi.org/10.1016/j.nbd.2011.12.023" @default.
• W2067680984 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3276707" @default.
• W2067680984 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22198379" @default.
• W2067680984 hasPublicationYear "2012" @default.
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