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Introduction

Tff3 peptide exerts important functions in cytoprotection and restitution of the gastrointestinal (GI) tract epithelia. Moreover, its presence in the rodent inner ear and involvement in the hearing process was demonstrated recently. However, its role in the auditory system still remains elusive. Our previous results showed a deterioration of hearing with age in Tff3-deficient animals.

Results

Present detailed analysis of auditory brain stem response (ABR) measurements and immunohistochemical study of selected functional proteins indicated a normal function and phenotype of the cochlea in Tff3 mutants. However, a microarray-based screening of tissue derived from the auditory central nervous system revealed an alteration of securin (Pttg1) and serpina3n expression between wild-type and Tff3 knock-out animals. This was confirmed by qRT-PCR, immunostaining and western blots.

Conclusions

We found highly down-regulated Pttg1 and up-regulated serpina3n expression as a consequence of genetically deleting Tff3 in mice, indicating a potential role of these factors during the development of presbyacusis."xsd:string
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http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Muller M."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Knipper M."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Blin N."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Zimmermann U."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Schimmang T."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Pfister M."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Shah A.A."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Lowenheim H."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Gallozzi M."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/author"Lubka-Pathak M."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/date"2011"xsd:gYear
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/name"Cell Mol Life Sci"xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/pages"2739-2749"xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/title"Altered expression of securin (Pttg1) and serpina3n in the auditory system of hearing-impaired Tff3-deficient mice."xsd:string
http://purl.uniprot.org/citations/21076990http://purl.uniprot.org/core/volume"68"xsd:string
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