Nucleus is the most important organelle of a cell playing a critical role in the regulation of gene expression. The nuclear pore complexes (NPCs) spanning the NE are the largest protein complexes, having more than 30 different proteins called as nucleoporins (Nups). These structures play a key role in controlling bidirectional transport of RNA and specific proteins which carry nuclear import or export signals. Especially in long-lived cells, like neurons, protection of the nucleocytoplasmic transport machinery from accumulating external and internal insults has a special importance for maintaining genomic integrity and DNA repairement mechanisms. Recent studies suggest that structural and functional alterations in the NE and components of the NPC might lead to nucleocytoplasmic transport defects in both physiological aging and neurodegenerative disorders, in particular characterized by toxic protein aggregates. However, whether impaired nucleocytoplasmic transport is a cause or a consequence of such conditions is still unclear. In this review, it was aimed to summarize the molecular mechanisms underlying the nucleocytoplasmic transport defects. This information will not only provide insights to shared pathways in physiological and pathological conditions, but also open the way of thinking to develop novel therapeutic and/or protective approaches in the future.
Primary Language | Turkish |
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Subjects | Health Care Administration |
Journal Section | Review |
Authors | |
Publication Date | December 23, 2020 |
Published in Issue | Year 2020 Volume: 2 Issue: 3 |