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    题名 作者 年代 出处 被引量
1Effect of condensed phosphates of pH, swelling and water-holding capacity ofbee显示文摘SHULTS G W RUSSELL D R WIEP _BICHI E 1974Food Science1974,,37:1
2Neuron-to-astrocyte proteostatic stress signaling in response to tau pathology显示文摘Maintenance of protein homeostasis or“proteostasis”is essential for the functioning and viability of cells.This is in particular the case for cells like neurons that cannot self-renew and acquire unique functional properties during their lifetime.Cellular proteostatic stress responses are in place to protect cells from damage in case of proteostatic challenges.The integrated stress response(ISR)is one of the key proteostatic stress responses in the cell(Costa-Mattioli and Walter,2020).The ISR is the downstream convergence point for the four stress-induced eIF2αkinases(EIF2AK1-4)that control stress-regulated protein translation via phosphorylation of the translation factor eIF2α.ISR activation results in a transient reduction of global translation while it concomitantly enhances the translation of specific mRNAs,including that encoding the activating transcription factor 4(ATF4).Together,the translational control mediated by the ISR results in a temporary reduction of the overall protein load and the selectively increased expression of proteins that contribute to restoration of the proteostatic balance.Kevin Llewelyn Batenburg Wiep Scheper 2024Neural Regeneration Research2024,19,3:0
3Intraneuronal tau aggregation induces the integrated stress response in astrocytes显示文摘Progressive aggregation of tau protein in neurons is associated with neurodegeneration in tauopathies.Cell non-autonomous disease mechanisms in astrocytes may be important drivers of the disease process but remain largely elusive.Here,we studied cell type-specific responses to intraneuronal tau aggregation prior to neurodegeneration.To this end,we developed a fully human co-culture model of seed-independent intraneuronal tau pathology,which shows no neuron and synapse loss.Using high-content microscopy,we show that intraneuronal tau aggregation induces oxidative stress accompanied by activation of the integrated stress response specifically in astrocytes.This requires the direct co-culture with neurons and is not related to neurodegeneration or extracellular tau levels.Tau-directed antisense therapy reduced intraneuronal tau levels and aggregation and prevented the cell non-autonomous responses in astrocytes.These data identify the astrocytic integrated stress response as a novel disease mechanism activated by intraneuronal tau aggregation.In addition,our data provide the first evidence for the efficacy of tau-directed antisense therapy to target cell autonomous and cell non-autonomous disease pathways in a fully human model of tau pathology.Kevin L.Batenburg Nael N.Kasri Vivi M.Heine Wiep Scheper 2022Journal of Molecular Cell Biology2022,14,10:0
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