Abstract
ABSTRACT Ciliopathies are a group of diseases caused by defects in cilia, hair-like organelles that can have many functions ranging from regulating extracellular fluid flow to sensing mechanical or chemical stimuli. Multiciliated cells (MCCs) with motile cilia are found in locations that include the central nervous system, where they are critical for homeostasis. Specifically, ependymal MCCs line the brain ventricles and central canal of the spinal cord, while other specialized MCCs occupy highly vascularized structures known as the choroid plexuses (ChPs) and produce cerebrospinal fluid (CSF). Now, a recent study has shown that murine ChP MCCs develop nodal-like cilia. Interestingly, ChP cilia were found to undergo resorption during early postnatal stages in part through axoneme regression, and this phenomenon was mirrored in human postmortem ChP samples. Taken together, these findings reveal important new insights about the ultrastructure of MCCs that comprise the mammalian ChP, and may have ramifications for other MCC populations in health and disease states.
Published Version
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