SRPS associated protein WDR60 regulates the multipolar-to-bipolar transition of migrating neurons during cortical development

Cell Death Dis. 2021 Jan 12;12(1):75. doi: 10.1038/s41419-020-03363-3.

Abstract

Mutations of WD40 repeat domain 60 (WDR60) have been identified in short-rib polydactyly syndromes (SRPS I-V), a group of lethal congenital disorders characterized by short ribs, polydactyly, and a range of extraskeletal phenotypes. However, the underlying mechanism is still unclear. Here, we report that WDR60 is essential for embryonic development and plays a critical role in the multipolar-bipolar transition and migration of newborn neurons during brain development. Mechanically, we found that WDR60 was located at the microtubule-organizing center to control microtubule organization and possibly, the trafficking of cellular components. Importantly, the migration defect caused by Wdr60 knockdown could be rescued by the stable form of α-Tubulin, α-TubulinK40Q (an acetylation-mimicking mutant). These findings identified a non-cilia function of WDR60 and provided insight into its biological function, as well as the pathogenesis of WDR60 deficiency associated with SRPS.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptor Proteins, Signal Transducing / metabolism*
  • Animals
  • Cell Movement
  • Female
  • Humans
  • Mice
  • Neurogenesis / genetics*
  • Neurons / metabolism*
  • Rats
  • Short Rib-Polydactyly Syndrome / genetics*

Substances

  • Adaptor Proteins, Signal Transducing
  • WDR60 protein, human