Advancements in innerĀ ear development, regeneration, and repair through otic organoids. 2022

Carl Nist-Lund, and Jin Kim, and Karl R Koehler
Program in Neuroscience, Harvard Medical School, Boston, MA 02115, USA; Department of Otolaryngology, USA; F.M. Kirby Neurobiology Center, USA.

The vertebrate inner ear contains a diversity of unique cell types arranged in a particularly complex 3D cytoarchitecture. Both of these features are integral to the proper development, function, and maintenance of hearing and balance. Since the elucidation of the timing and delivery of signaling molecules to produce inner ear sensory cells, supporting cells, and neurons from human induced pluripotent stem cells, we have entered a revolution using organ-like 'otic organoid' cultures to explore inner ear specific genetic programs, developmental rules, and potential therapeutics. This review aims to highlight a selection of reviews and primary research papers from the past two years of particular merit that use otic organoids to investigate the broadly defined topics of cell reprogramming, regeneration, and repair.

UI MeSH Term Description Entries
D007758 Ear, Inner The essential part of the hearing organ consists of two labyrinthine compartments: the bony labyrinthine and the membranous labyrinth. The bony labyrinth is a complex of three interconnecting cavities or spaces (COCHLEA; VESTIBULAR LABYRINTH; and SEMICIRCULAR CANALS) in the TEMPORAL BONE. Within the bony labyrinth lies the membranous labyrinth which is a complex of sacs and tubules (COCHLEAR DUCT; SACCULE AND UTRICLE; and SEMICIRCULAR DUCTS) forming a continuous space enclosed by EPITHELIUM and connective tissue. These spaces are filled with LABYRINTHINE FLUIDS of various compositions. Labyrinth,Bony Labyrinth,Ear, Internal,Inner Ear,Membranous Labyrinth,Bony Labyrinths,Ears, Inner,Ears, Internal,Inner Ears,Internal Ear,Internal Ears,Labyrinth, Bony,Labyrinth, Membranous,Labyrinths,Labyrinths, Bony,Labyrinths, Membranous,Membranous Labyrinths
D009940 Organoids An organization of cells into an organ-like structure. Organoids can be generated in culture, e.g., self-organized three-dimensional tissue structures derived from STEM CELLS (see MICROPHYSIOLOGICAL SYSTEMS). They are also found in certain NEOPLASMS. Organoid
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D057026 Induced Pluripotent Stem Cells Cells from adult organisms that have been reprogrammed into a pluripotential state similar to that of EMBRYONIC STEM CELLS. Human Induced Pluripotent Stem Cell,IPS Cell,IPS Cells,Induced Pluripotent Stem Cell,Fibroblast-Derived IPS Cells,Fibroblast-Derived Induced Pluripotent Stem Cells,Human Induced Pluripotent Stem Cells,hiPSC,Cell, Fibroblast-Derived IPS,Cell, IPS,Cells, Fibroblast-Derived IPS,Cells, IPS,Fibroblast Derived IPS Cells,Fibroblast Derived Induced Pluripotent Stem Cells,Fibroblast-Derived IPS Cell,IPS Cell, Fibroblast-Derived,IPS Cells, Fibroblast-Derived
D038081 Organogenesis Formation of differentiated cells and complicated tissue organization to provide specialized functions.

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