Abstract
Proteins belonging to the STAND (signal transduction ATPases with numerous domains) family have been implicated in crucial functions across various signal transduction pathways, encompassing both apoptosis and innate immune responses. In this study, we have identified NWD1, a member of the STAND superfamily, as a gene that regulates neurite outgrowth. This was confirmed by siRNA knockdown assay in E18 neurons. A zebrafish model was utilized to create NWD1 knockdown using the NgAgo-gDNA system, revealing the significant role of NWD1 in neurogenesis. We further revealed that NWD1 siRNA reduced the acetylated tubulin protein, and changed the ratio of soluble and polymerized tubulin. Moreover, we investigated the mechanism underlying the regulation of NWD1-mediated microtubule dynamics, and MAP1B may be a target gene. This research unveiled, for the first time, the potential role of NWD1 in regulating axon outgrowth through modulating the ratio of acetylated tubulin.
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