RGD Reference Report - Jak-Stat signaling pathway may play a role in the pathogenesis of cholesteatoma. - Rat Genome Database

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Jak-Stat signaling pathway may play a role in the pathogenesis of cholesteatoma.

Authors: Eskiizmir, G  Seda Vatansever, H  Ozgur, E  Aslan, A  Tanyeri, G  Gozuacik, D  Kemal Ozbilgin, M  Cingi, C 
Citation: Eskiizmir G, etal., Am J Otolaryngol. 2014 Mar-Apr;35(2):130-6. doi: 10.1016/j.amjoto.2013.10.005. Epub 2013 Oct 30.
RGD ID: 8661722
Pubmed: (View Article at PubMed) PMID:24321752
DOI: Full-text: DOI:10.1016/j.amjoto.2013.10.005

PURPOSE: Jak-Stat signaling pathway is one of the major signal transduction cascades which regulates most of the cellular events such as cell proliferation, differentiation, cell migration and apoptosis. This study aims to determine the activity of Jak-Stat signaling pathway in the pathogenesis of cholesteatoma. MATERIALS AND METHODS: Cholesteatoma and skin samples were obtained from 10 patients who underwent tympanomastoidectomy for chronic otitis media with cholesteatoma. Immunohistochemical analysis of cholesteatoma and skin was performed using anti-Jak1, anti-Jak2, anti-Jak3, anti-Stat1, anti-Stat2, anti-Stat3, anti-Stat4 and anti-Stat5 antibodies. The immunoreactivities in cholesteatoma and skin were quantified using H-score measurement and statistical comparison was performed. RESULTS: Jak1, Jak2, Jak3, Stat1 and Stat3 immunoreactivities were not detected in cholesteatoma; in contrast to the skin (129.8; 226.7; 33.0; 66.4;115.9). In addition, when H-score measurements of Stat2, Stat4 and Stat5 immunoreactivities were compared between cholesteatoma (172.8; 166.7; 120.0) and skin (400.0; 284.9; 292.0), statistically significant differences were found (p<0.0001, p<0.0001, p<0.0001). CONCLUSIONS: A remarkable deficiency in the family members of Jak-Stat signaling pathway was demonstrated in cholesteatoma. Therefore, perturbations in Jak-Stat signaling pathway may play a role in the pathogenesis of cholesteatoma.

Annotation

Disease Annotations    
cholesteatoma  (IEP,ISO)

Objects Annotated

Genes (Rattus norvegicus)
Stat4  (signal transducer and activator of transcription 4)

Genes (Mus musculus)
Stat4  (signal transducer and activator of transcription 4)

Genes (Homo sapiens)
STAT4  (signal transducer and activator of transcription 4)


Additional Information