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PMID: 17120192 Published · ppublish English Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Review

The molecular basis of neurosensory cell formation in ear development: a blueprint for hair cell and sensory neuron regeneration?

Fritzsch B, Beisel KW, Hansen LA

Abstract

The inner ear of mammals uses neurosensory cells derived from the embryonic ear for mechanoelectric transduction of vestibular and auditory stimuli (the hair cells) and conducts this information to the brain via sensory neurons. As with most other neurons of mammals, lost hair cells and sensory neurons are not spontaneously replaced and result instead in age-dependent progressive hearing loss. We review the molecular basis of neurosensory development in the mouse ear to provide a blueprint for possible enhancement of therapeutically useful transformation of stem cells into lost neurosensory cells. We identify several readily available adult sources of stem cells that express, like the ectoderm-derived ear, genes known to be essential for ear development. Use of these stem cells combined with molecular insights into neurosensory cell specification and proliferation regulation of the ear, might allow for neurosensory regeneration of mammalian ears in the near future.

MeSH Terms
Animals Ear/embryology,physiology Ectoderm/cytology Hair Cells, Auditory/cytology Humans Nerve Regeneration Neurons, Afferent/cytology Stem Cells/cytology
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Fritzsch Bernd
Creighton University, Department of Biomedical Sciences, Omaha, NE 68178, USA. [email protected]
Beisel Kirk W
Hansen Laura A
References (117)
117 references, click to expand
  1. Fringe is a glycosyltransferase that modifies Notch.
    Nature. 2000 Jul 27;406(6794):369-75 PMID: 10935626
  2. FGF/FGFR-2(IIIb) signaling is essential for inner ear morphogenesis.
    J Neurosci. 2000 Aug 15;20(16):6125-34 PMID: 10934262
  3. Hes6 acts in a positive feedback loop with the neurogenins to promote neuronal differentiation.
    Development. 2000 Oct;127(19):4203-16 PMID: 10976052
  4. Essential role of BETA2/NeuroD1 in development of the vestibular and auditory systems.
    Genes Dev. 2000 Nov 15;14(22):2839-54 PMID: 11090132
  5. Transcription factor GATA-3 alters pathway selection of olivocochlear neurons and affects morphogenesis of the ear.
    J Comp Neurol. 2001 Jan 22;429(4):615-30 PMID: 11135239
  6. GATA-3: an unexpected regulator of cell lineage determination in skin.
    Genes Dev. 2003 Sep 1;17(17):2108-22 PMID: 12923059
  7. Transcriptional co-repressors of Runx2.
    J Cell Biochem. 2006 May 1;98(1):54-64 PMID: 16440320
  8. p27(Kip1) deficiency causes organ of Corti pathology and hearing loss.
    Hear Res. 2006 Apr;214(1-2):28-36 PMID: 16513305
  9. Essential role of retinoblastoma protein in mammalian hair cell development and hearing.
    Proc Natl Acad Sci U S A. 2006 May 9;103(19):7345-50 PMID: 16648263
  10. The miRNA-processing enzyme dicer is essential for the morphogenesis and maintenance of hair follicles.
    Curr Biol. 2006 May 23;16(10):1041-9 PMID: 16682203
  11. Basic helix-loop-helix gene Hes6 delineates the sensory hair cell lineage in the inner ear.
    Dev Dyn. 2006 Jun;235(6):1689-700 PMID: 16534784
  12. The Notch ligand JAG1 is required for sensory progenitor development in the mammalian inner ear.
    PLoS Genet. 2006 Jan;2(1):e4 PMID: 16410827
  13. Characterization of epidermal neural crest stem cell (EPI-NCSC) grafts in the lesioned spinal cord.
    Mol Cell Neurosci. 2006 May-Jun;32(1-2):67-81 PMID: 16626970
  14. Mammalian cochlear supporting cells can divide and trans-differentiate into hair cells.
    Nature. 2006 Jun 22;441(7096):984-7 PMID: 16791196
  15. Lhx2 maintains stem cell character in hair follicles.
    Science. 2006 Jun 30;312(5782):1946-9 PMID: 16809539
  16. A morphogenetic wave of p27Kip1 transcription directs cell cycle exit during organ of Corti development.
    Development. 2006 Aug;133(15):2817-26 PMID: 16790479
  17. Generation of inner ear cell types from embryonic stem cells.
    Methods Mol Biol. 2006;330:71-92 PMID: 16846017
  18. Role of miRNA and miRNA processing factors in development and disease.
    Birth Defects Res C Embryo Today. 2006 Jun;78(2):107-17 PMID: 16847880
  19. Neuroscience. No more cortical neurons for you.
    Science. 2006 Aug 18;313(5789):928-9 PMID: 16917050
  20. Foxg1 is required for morphogenesis and histogenesis of the mammalian inner ear.
    Dev Dyn. 2006 Sep;235(9):2470-82 PMID: 16691564
  21. MicroRNA gene expression in the mouse inner ear.
    Brain Res. 2006 Sep 21;1111(1):95-104 PMID: 16904081
  22. Increasing p16INK4a expression decreases forebrain progenitors and neurogenesis during ageing.
    Nature. 2006 Sep 28;443(7110):448-52 PMID: 16957738
  23. TGF-beta control of rat thyroid follicular cells differentiation.
    Mol Cell Endocrinol. 2003 Sep 30;207(1-2):1-11 PMID: 12972178
  24. Expression of mouse fibroblast growth factor and fibroblast growth factor receptor genes during early inner ear development.
    Dev Dyn. 2003 Oct;228(2):267-72 PMID: 14517998
  25. Pluripotent stem cells from the adult mouse inner ear.
    Nat Med. 2003 Oct;9(10):1293-9 PMID: 12949502
  26. Molecular conservation and novelties in vertebrate ear development.
    Curr Top Dev Biol. 2003;57:1-44 PMID: 14674476
  27. Neurotrophins in the ear: their roles in sensory neuron survival and fiber guidance.
    Prog Brain Res. 2004;146:265-78 PMID: 14699969
  28. Convergent evolution of gene networks by single-gene duplications in higher eukaryotes.
    EMBO Rep. 2004 Mar;5(3):274-9 PMID: 14968135
  29. Integration of Smad and forkhead pathways in the control of neuroepithelial and glioblastoma cell proliferation.
    Cell. 2004 Apr 16;117(2):211-23 PMID: 15084259
  30. Suppression of neural fate and control of inner ear morphogenesis by Tbx1.
    Development. 2004 Apr;131(8):1801-12 PMID: 15084464
  31. Stem cells as therapy for hearing loss.
    Trends Mol Med. 2004 Jul;10(7):309-15 PMID: 15242678
  32. Transcription profiling of inner ears from Pou4f3(ddl/ddl) identifies Gfi1 as a target of the Pou4f3 deafness gene.
    Hum Mol Genet. 2004 Sep 15;13(18):2143-53 PMID: 15254021
  33. Expression of Islet1 marks the sensory and neuronal lineages in the mammalian inner ear.
    J Comp Neurol. 2004 Sep 27;477(4):412-21 PMID: 15329890
  34. Pluripotent neural crest stem cells in the adult hair follicle.
    Dev Dyn. 2004 Oct;231(2):258-69 PMID: 15366003
  35. Molecular profiling reveals synaptic release machinery in Merkel cells.
    Proc Natl Acad Sci U S A. 2004 Oct 5;101(40):14503-8 PMID: 15448211
  36. Expression of mouse Foxi class genes in early craniofacial development.
    Dev Dyn. 2004 Nov;231(3):640-6 PMID: 15376323
  37. Drug delivery to the inner ear using gene therapy.
    Otolaryngol Clin North Am. 2004 Oct;37(5):1091-108 PMID: 15474113
  38. Eya1 and Six1 are essential for early steps of sensory neurogenesis in mammalian cranial placodes.
    Development. 2004 Nov;131(22):5561-72 PMID: 15496442
  39. Phosphorylation inhibits the DNA-binding activity of MyoD homodimers but not MyoD-E12 heterodimers.
    J Biol Chem. 1993 Nov 15;268(32):24415-20 PMID: 8226992
  40. Skeletal overgrowth and deafness in mice lacking fibroblast growth factor receptor 3.
    Nat Genet. 1996 Apr;12(4):390-7 PMID: 8630492
  41. Identification of neurogenin, a vertebrate neuronal determination gene.
    Cell. 1996 Oct 4;87(1):43-52 PMID: 8858147
  42. Pax2 contributes to inner ear patterning and optic nerve trajectory.
    Development. 1996 Nov;122(11):3381-91 PMID: 8951055
  43. Identification and molecular regulation of neural stem cells in the olfactory epithelium.
    Exp Cell Res. 2005 Jun 10;306(2):309-16 PMID: 15925585
  44. Roles of bHLH genes in neural stem cell differentiation.
    Exp Cell Res. 2005 Jun 10;306(2):343-8 PMID: 15925590
  45. Influence of supporting cells on neuronal degeneration after hair cell loss.
    J Assoc Res Otolaryngol. 2005 Jun;6(2):136-47 PMID: 15952050
  46. Foxg1 is required for specification of ventral telencephalon and region-specific regulation of dorsal telencephalic precursor proliferation and apoptosis.
    Dev Biol. 2005 Jul 1;283(1):113-27 PMID: 15893304
  47. Wnt-dependent regulation of inner ear morphogenesis is balanced by the opposing and supporting roles of Shh.
    Genes Dev. 2005 Jul 1;19(13):1612-23 PMID: 15961523
  48. Brn3c null mutant mice show long-term, incomplete retention of some afferent inner ear innervation.
    BMC Neurosci. 2003 Jan 30;4:2 PMID: 12585968
  49. A bHLH transcriptional network regulating the specification of retinal ganglion cells.
    Development. 2005 Sep;132(17):3907-21 PMID: 16079155
  50. Strategies to preserve or regenerate spiral ganglion neurons.
    Curr Opin Otolaryngol Head Neck Surg. 2005 Oct;13(5):294-300 PMID: 16160524
  51. Core transcriptional regulatory circuitry in human embryonic stem cells.
    Cell. 2005 Sep 23;122(6):947-56 PMID: 16153702
  52. Smaller inner ear sensory epithelia in Neurog 1 null mice are related to earlier hair cell cycle exit.
    Dev Dyn. 2005 Nov;234(3):633-50 PMID: 16145671
  53. Clinical application of neurotrophic factors: the potential for primary auditory neuron protection.
    Eur J Neurosci. 2005 Nov;22(9):2123-33 PMID: 16262651
  54. Fgf8 expression defines a morphogenetic center required for olfactory neurogenesis and nasal cavity development in the mouse.
    Development. 2005 Dec;132(23):5211-23 PMID: 16267092
  55. Antagonistic effects of Grg6 and Groucho/TLE on the transcription repression activity of brain factor 1/FoxG1 and cortical neuron differentiation.
    Mol Cell Biol. 2005 Dec;25(24):10916-29 PMID: 16314515
  56. Smad transcription factors.
    Genes Dev. 2005 Dec 1;19(23):2783-810 PMID: 16322555
  57. Visualization of embryonic neural stem cells using Hes promoters in transgenic mice.
    Mol Cell Neurosci. 2006 Jan;31(1):109-22 PMID: 16214363
  58. Inhibitors of differentiation and DNA binding (Ids) regulate Math1 and hair cell formation during the development of the organ of Corti.
    J Neurosci. 2006 Jan 11;26(2):550-8 PMID: 16407553
  59. Sonic hedgehog promotes mouse inner ear progenitor cell proliferation and hair cell generation in vitro.
    Neuroreport. 2006 Feb 6;17(2):121-4 PMID: 16407756
  60. Notch signalling in vertebrate neural development.
    Nat Rev Neurosci. 2006 Feb;7(2):93-102 PMID: 16429119
  61. A tale of two signals: Wnt and Hedgehog in dentate neurogenesis.
    Sci STKE. 2006 Jan 24;2006(319):pe5 PMID: 16434726
  62. Wnt signals mediate a fate decision between otic placode and epidermis.
    Development. 2006 Mar;133(5):865-75 PMID: 16452098
  63. Notch ligands with contrasting functions: Jagged1 and Delta1 in the mouse inner ear.
    Development. 2006 Apr;133(7):1277-86 PMID: 16495313
  64. Functional conservation of atonal and Math1 in the CNS and PNS.
    Development. 2000 Mar;127(5):1039-48 PMID: 10662643
  65. Disrupted development of the cerebral hemispheres in transgenic mice expressing the mammalian Groucho homologue transducin-like-enhancer of split 1 in postmitotic neurons.
    Mech Dev. 2000 May;93(1-2):105-15 PMID: 10781944
  66. A genetic programme for neuronal connectivity.
    Trends Genet. 2000 May;16(5):221-6 PMID: 10782116
  67. A mutation in the Lunatic fringe gene suppresses the effects of a Jagged2 mutation on inner hair cell development in the cochlea.
    Curr Biol. 2000 Jun 1;10(11):659-62 PMID: 10837254
  68. Groucho-dependent and -independent repression activities of Runt domain proteins.
    Mol Cell Biol. 1997 Sep;17(9):5581-7 PMID: 9271433
  69. neurogenin1 is essential for the determination of neuronal precursors for proximal cranial sensory ganglia.
    Neuron. 1998 Mar;20(3):469-82 PMID: 9539122
  70. Development of the mouse inner ear and origin of its sensory organs.
    J Neurosci. 1998 May 1;18(9):3327-35 PMID: 9547240
  71. Characterization of three novel members of the zebrafish Pax2/5/8 family: dependency of Pax5 and Pax8 expression on the Pax2.1 (noi) function.
    Development. 1998 Aug;125(16):3063-74 PMID: 9671580
  72. Notch signalling pathway mediates hair cell development in mammalian cochlea.
    Nat Genet. 1999 Mar;21(3):289-92 PMID: 10080181
  73. p27(Kip1) links cell proliferation to morphogenesis in the developing organ of Corti.
    Development. 1999 Apr;126(8):1581-90 PMID: 10079221
  74. BMPs inhibit neurogenesis by a mechanism involving degradation of a transcription factor.
    Nat Neurosci. 1999 Apr;2(4):339-45 PMID: 10204540
  75. Math1: an essential gene for the generation of inner ear hair cells.
    Science. 1999 Jun 11;284(5421):1837-41 PMID: 10364557
  76. Dynamics of placodal lineage development revealed by targeted transgene expression.
    Dev Dyn. 1999 Aug;215(4):332-43 PMID: 10417822
  77. Inhibition of neurogenesis at the zebrafish midbrain-hindbrain boundary by the combined and dose-dependent activity of a new hairy/E(spl) gene pair.
    Development. 2005 Jan;132(1):75-88 PMID: 15590746
  78. Neural induction in Xenopus requires early FGF signalling in addition to BMP inhibition.
    Development. 2005 Jan;132(2):299-310 PMID: 15590738
  79. Two contrasting roles for Notch activity in chick inner ear development: specification of prosensory patches and lateral inhibition of hair-cell differentiation.
    Development. 2005 Feb;132(3):541-51 PMID: 15634704
  80. Molecular signals regulating proliferation of stem and progenitor cells in mouse olfactory epithelium.
    Dev Neurosci. 2004 Mar-Aug;26(2-4):166-80 PMID: 15711058
  81. FGF8 initiates inner ear induction in chick and mouse.
    Genes Dev. 2005 Mar 1;19(5):603-13 PMID: 15741321
  82. Auditory hair cell replacement and hearing improvement by Atoh1 gene therapy in deaf mammals.
    Nat Med. 2005 Mar;11(3):271-6 PMID: 15711559
  83. Clonal analysis of the relationships between mechanosensory cells and the neurons that innervate them in the chicken ear.
    Development. 2005 Apr;132(7):1687-97 PMID: 15743876
  84. Identification of cis-element regulating expression of the mouse Fgf10 gene during inner ear development.
    Dev Dyn. 2005 May;233(1):177-87 PMID: 15765517
  85. Sox2 is required for sensory organ development in the mammalian inner ear.
    Nature. 2005 Apr 21;434(7036):1031-5 PMID: 15846349
  86. Regeneration of human auditory nerve. In vitro/in video demonstration of neural progenitor cells in adult human and guinea pig spiral ganglion.
    Hear Res. 2005 May;203(1-2):180-91 PMID: 15855043
  87. The retinoblastoma gene pathway regulates the postmitotic state of hair cells of the mouse inner ear.
    Development. 2005 May;132(10):2377-88 PMID: 15843406
  88. Phylogenetic profiling of protein interaction networks in eukaryotic transcription factors reveals focal proteins being ancestral to hubs.
    Gene. 2005 Mar 14;347(2):247-53 PMID: 15777629
  89. The conserved WRPW motif of Hes6 mediates proteasomal degradation.
    Biochem Biophys Res Commun. 2005 Jun 24;332(1):33-6 PMID: 15896295
  90. Atoh1 null mice show directed afferent fiber growth to undifferentiated ear sensory epithelia followed by incomplete fiber retention.
    Dev Dyn. 2005 Jun;233(2):570-83 PMID: 15844198
  91. Developmental evolutionary biology of the vertebrate ear: conserving mechanoelectric transduction and developmental pathways in diverging morphologies.
    Neuroreport. 2000 Nov 27;11(17):R35-44 PMID: 11117521
  92. NeuroD-null mice are deaf due to a severe loss of the inner ear sensory neurons during development.
    Development. 2001 Feb;128(3):417-26 PMID: 11152640
  93. The basic helix-loop-helix protein family: comparative genomics and phylogenetic analysis.
    Genome Res. 2001 May;11(5):754-70 PMID: 11337472
  94. Hes1 and Hes5 activities are required for the normal development of the hair cells in the mammalian inner ear.
    J Neurosci. 2001 Jul 1;21(13):4712-20 PMID: 11425898
  95. Spatial shaping of cochlear innervation by temporally regulated neurotrophin expression.
    J Neurosci. 2001 Aug 15;21(16):6170-80 PMID: 11487640
  96. Crossinhibitory activities of Ngn1 and Math1 allow specification of distinct dorsal interneurons.
    Neuron. 2001 Aug 2;31(2):219-32 PMID: 11502254
  97. Neurogenin 1 null mutant ears develop fewer, morphologically normal hair cells in smaller sensory epithelia devoid of innervation.
    J Assoc Res Otolaryngol. 2000 Sep;1(2):129-43 PMID: 11545141
  98. Expression of Math1 and HES5 in the cochleae of wildtype and Jag2 mutant mice.
    J Assoc Res Otolaryngol. 2000 Sep;1(2):161-71 PMID: 11545143
  99. Spiral ganglion neurons are protected from degeneration by GDNF gene therapy.
    J Assoc Res Otolaryngol. 2000 Dec;1(4):315-25 PMID: 11547811
  100. Expression of BMP signalling pathway members in the developing zebrafish inner ear and lateral line.
    Mech Dev. 2001 Oct;108(1-2):179-84 PMID: 11578872
  101. Evolution and development of the vertebrate ear.
    Brain Res Bull. 2001 Aug;55(6):711-21 PMID: 11595355
  102. Physical and functional interaction between GATA-3 and Smad3 allows TGF-beta regulation of GATA target genes.
    Curr Biol. 2002 Jan 8;12(1):35-45 PMID: 11790301
  103. Revisiting cell fate specification in the inner ear.
    Curr Opin Neurobiol. 2002 Feb;12(1):35-42 PMID: 11861162
  104. Spiel-ohne-grenzen/pou2 mediates regional competence to respond to Fgf8 during zebrafish early neural development.
    Development. 2002 Feb;129(4):917-33 PMID: 11861475
  105. Mash1 and Ngn1 control distinct steps of determination and differentiation in the olfactory sensory neuron lineage.
    Development. 2002 Apr;129(8):1871-80 PMID: 11934853
  106. Proneural genes and the specification of neural cell types.
    Nat Rev Neurosci. 2002 Jul;3(7):517-30 PMID: 12094208
  107. Progenitor cells of the olfactory receptor neuron lineage.
    Microsc Res Tech. 2002 Aug 1;58(3):176-88 PMID: 12203696
  108. Proneural and proneuroendocrine transcription factor expression in cutaneous mechanoreceptor (Merkel) cells and Merkel cell carcinoma.
    Int J Cancer. 2002 Sep 10;101(2):103-10 PMID: 12209986
  109. Specification of the mammalian cochlea is dependent on Sonic hedgehog.
    Genes Dev. 2002 Sep 15;16(18):2365-78 PMID: 12231626
  110. Development and evolution of inner ear sensory epithelia and their innervation.
    J Neurobiol. 2002 Nov 5;53(2):143-56 PMID: 12382272
  111. Towards a molecular understanding of Drosophila hearing.
    J Neurobiol. 2002 Nov 5;53(2):172-89 PMID: 12382274
  112. Early steps in the formation of neural tissue in ascidian embryos.
    Dev Biol. 2002 Dec 15;252(2):151-69 PMID: 12482707
  113. Autoregulation of neurogenesis by GDF11.
    Neuron. 2003 Jan 23;37(2):197-207 PMID: 12546816
  114. Neural crest origin of mammalian Merkel cells.
    Dev Biol. 2003 Jan 15;253(2):258-63 PMID: 12645929
  115. Progressive hearing loss in mice lacking the cyclin-dependent kinase inhibitor Ink4d.
    Nat Cell Biol. 2003 May;5(5):422-6 PMID: 12717441
  116. Expression and function of FGF10 in mammalian inner ear development.
    Dev Dyn. 2003 Jun;227(2):203-15 PMID: 12761848
  117. Fgf3 and Fgf10 are required for mouse otic placode induction.
    Development. 2003 Aug;130(15):3379-90 PMID: 12810586
Article Info
Journal
BioEssays : news and reviews in molecular, cellular and developmental biology
Abbr.
Bioessays
ISSN
0265-9247
Published
2006-12-00
Pages
1181-93
Language
English
Region
United States
NLM ID
8510851
PMCID
PMC3901523
Subset
IM
Grants
NIDCD NIH HHS · R01 DC005009 · United States
NIDCD NIH HHS · R01 DC005590-05 · United States
NCRR NIH HHS · P20 RR018788 · United States
NIDCD NIH HHS · DC005009 · United States
NCRR NIH HHS · C06 RR017417 · United States
NIDCD NIH HHS · R01 DC005590 · United States
NCRR NIH HHS · 1P20RR018788-01 · United States
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