Impact of motile ciliopathies on human development and clinical consequences in the newborn

Rachael M. Hyland, Steven L. Brody

Research output: Contribution to journalReview articlepeer-review

Abstract

Motile cilia are hairlike organelles that project outward from a tissue-restricted subset of cells to direct fluid flow. During human development motile cilia guide determination of the left-right axis in the embryo, and in the fetal and neonatal periods they have essential roles in airway clearance in the respiratory tract and regulating cerebral spinal fluid flow in the brain. Dysregulation of motile cilia is best understood through the lens of the genetic disorder primary ciliary dyskinesia (PCD). PCD encompasses all genetic motile ciliopathies resulting from over 60 known genetic mutations and has a unique but often underrecognized neonatal presentation. Neonatal respiratory distress is now known to occur in the majority of patients with PCD, laterality defects are common, and very rarely brain ventricle enlargement occurs. The developmental function of motile cilia and the effect and pathophysiology of motile ciliopathies are incompletely understood in humans. In this review, we will examine the current understanding of the role of motile cilia in human development and clinical considerations when assessing the newborn for suspected motile ciliopathies.

Original languageEnglish
Article number125
JournalCells
Volume11
Issue number1
DOIs
StatePublished - Jan 1 2022

Keywords

  • Human development
  • Motile cilia
  • Neonate
  • Primary ciliary dyskinesia

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