Publikationsdatum:
2012-09-14
Beschreibung:
Deafness is a condition with a high prevalence worldwide, produced primarily by the loss of the sensory hair cells and their associated spiral ganglion neurons (SGNs). Of all the forms of deafness, auditory neuropathy is of particular concern. This condition, defined primarily by damage to the SGNs with relative preservation of the hair cells, is responsible for a substantial proportion of patients with hearing impairment. Although the loss of hair cells can be circumvented partially by a cochlear implant, no routine treatment is available for sensory neuron loss, as poor innervation limits the prospective performance of an implant. Using stem cells to recover the damaged sensory circuitry is a potential therapeutic strategy. Here we present a protocol to induce differentiation from human embryonic stem cells (hESCs) using signals involved in the initial specification of the otic placode. We obtained two types of otic progenitors able to differentiate in vitro into hair-cell-like cells and auditory neurons that display expected electrophysiological properties. Moreover, when transplanted into an auditory neuropathy model, otic neuroprogenitors engraft, differentiate and significantly improve auditory-evoked response thresholds. These results should stimulate further research into the development of a cell-based therapy for deafness.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3480718/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3480718/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Wei -- Jongkamonwiwat, Nopporn -- Abbas, Leila -- Eshtan, Sarah Jacob -- Johnson, Stuart L -- Kuhn, Stephanie -- Milo, Marta -- Thurlow, Johanna K -- Andrews, Peter W -- Marcotti, Walter -- Moore, Harry D -- Rivolta, Marcelo N -- 088719/Wellcome Trust/United Kingdom -- G0700785/Medical Research Council/United Kingdom -- G0801059/Medical Research Council/United Kingdom -- G0900919/Medical Research Council/United Kingdom -- G0900919(92659)/Medical Research Council/United Kingdom -- G20/Action on Hearing Loss/United Kingdom -- G34/Action on Hearing Loss/United Kingdom -- G44/Action on Hearing Loss/United Kingdom -- Medical Research Council/United Kingdom -- England -- Nature. 2012 Oct 11;490(7419):278-82. doi: 10.1038/nature11415. Epub 2012 Sep 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Stem Cell Biology, University of Sheffield, Sheffield S10 2TN, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22972191" target="_blank"〉PubMed〈/a〉
Schlagwort(e):
Animals
;
Auditory Threshold
;
*Cell Differentiation
;
Cell Line
;
Cells, Cultured
;
Cochlear Nerve/cytology/physiology
;
Deafness/chemically induced/therapy
;
Embryonic Stem Cells/*cytology
;
*Evoked Potentials, Auditory
;
Fibroblast Growth Factor 10/genetics/metabolism
;
Fibroblast Growth Factor 3/genetics/metabolism
;
Gene Expression Profiling
;
Gene Expression Regulation, Developmental
;
Gerbillinae
;
Hair Cells, Auditory/cytology/physiology
;
Humans
;
Mice
;
Patch-Clamp Techniques
;
Stem Cell Transplantation
;
Stem Cells/*cytology
Print ISSN:
0028-0836
Digitale ISSN:
1476-4687
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Permalink
