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Pathogenic KIAA0586/TALPID3 variants are associated with defects in primary and motile cilia

  • Jacqueline E. Taudien
  • , Diana Bracht
  • , Heike Olbrich
  • , Sebastian Swirski
  • , Fulvio D'Abrusco
  • , Bert Van der Zwaag
  • , Maike Möller
  • , Thomas Lücke
  • , Norbert Teig
  • , Ulrika Lindberg
  • , Kai Wohlgemuth
  • , Julia Wallmeier
  • , Anja Blanque
  • , Christos Gatsogiannis
  • , Sebastian George
  • , Christoph Jüschke
  • , Marta Owczarek-Lipska
  • , Dorothee Veer
  • , Hester Y. Kroes
  • , Enza Maria Valente
  • G. Christoph Korenke, Heymut Omran, John Neidhardt*
*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Pathogenic variants in KIAA0586/TALPID3 are associated with the ciliopathy Joubert syndrome (JS). We report individuals with KIAA0586/TALPID3 variants affected by primary and motile cilia defects leading to JS and chronic destructive airway disease. DNA variants were detected in three families by sequencing. In two unrelated families, a deep-intronic variant (KIAA0586/TALPID3:c.3990 + 3186G>A) activated a cryptic exon. We performed histological and functional analyses in native and air-liquid interface (ALI) cultured respiratory cells. Primary cilia lengths were measured in patient-derived fibroblasts. Our data associate KIAA0586/TALPID3 variants with a syndrome combining JS and chronic destructive airway disease, reduced number of motile cilia, disorganized basal body location, and ciliary clearance malfunction. Additionally, patient-derived cell lines showed primary cilia defects. Disease causing KIAA0586/TALPID3 variants, including a deep-intronic sequence variant, were associated with primary and motile cilia defects in JS patients. The combination of JS and respiratory symptoms should be considered indicative for KIAA0586/TALPID3 sequence alterations.

Original languageEnglish
Article number111670
JournaliScience
Volume28
Issue number2
DOIs
Publication statusPublished - 21 Feb 2025

Keywords

  • Cell biology
  • Cellular physiology
  • Human Genetics
  • Integrative aspects of cell biology

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