RGD Reference Report - Expression of Aurora kinases A and B in normal, hyperplastic, and malignant human endometrium: Aurora B as a predictor for poor prognosis in endometrial carcinoma. - Rat Genome Database

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Expression of Aurora kinases A and B in normal, hyperplastic, and malignant human endometrium: Aurora B as a predictor for poor prognosis in endometrial carcinoma.

Authors: Kurai, M  Shiozawa, T  Shih, HC  Miyamoto, T  Feng, YZ  Kashima, H  Suzuki, A  Konishi, I 
Citation: Kurai M, etal., Hum Pathol. 2005 Dec;36(12):1281-8.
RGD ID: 2293878
Pubmed: PMID:16311121   (View Abstract at PubMed)
DOI: DOI:10.1016/j.humpath.2005.09.014   (Journal Full-text)

Aurora kinases such as Aurora A and Aurora B are key regulators of mitosis and have been reported to be overexpressed in various malignancies. However, the expression and localization of Aurora kinases in normal and neoplastic endometrial tissues remain undetermined. In the present study, immunohistochemical expression of Aurora A and B was examined in 40 normal, 30 hyperplastic, and 73 malignant endometria. The data were compared with the expression of Ki-67 and patient survivals. The expression of Aurora A and B at protein and messenger RNA levels was also examined using Western blotting and the reverse transcriptase polymerase chain reaction. The expression of Aurora A in normal endometrium was observed mainly in the proliferative phase and was decreased in the secretory phase. The Aurora A expression was significantly increased in carcinomas compared with normal proliferative endometrium; however, there was no correlation of Aurora A expression with Ki-67 expression or patient survival. The expression of Aurora B in normal endometrium was significantly higher in the proliferative phase than in the secretory phase. In endometrial carcinomas, the expression of Aurora B was correlated with Ki-67 expression and was significantly increased in high-grade tumors. In addition, patients with Aurora B-positive carcinoma showed poor prognosis compared with those with Aurora B-negative carcinoma (P = .0135). Accordingly, the present study indicates the aberrant expression of Aurora A and Aurora B in endometrial carcinomas and the clinical importance of Aurora B expression in relationship to patient prognosis.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
endometrial carcinoma  IEP 2293878mRNA and protein:increased expression:endometriumRGD 
endometrial carcinoma disease_progressionIEP 2293878mRNA and protein:increased expression:endometriumRGD 
endometrial carcinoma  ISOAURKA (Homo sapiens)2293878; 2293878mRNA and protein:increased expression:endometriumRGD 
endometrial carcinoma disease_progressionISOAURKB (Homo sapiens)2293878; 2293878mRNA and protein:increased expression:endometriumRGD 

Objects Annotated

Genes (Rattus norvegicus)
Aurka  (aurora kinase A)
Aurkb  (aurora kinase B)

Genes (Mus musculus)
Aurka  (aurora kinase A)
Aurkb  (aurora kinase B)

Genes (Homo sapiens)
AURKA  (aurora kinase A)
AURKB  (aurora kinase B)


Additional Information