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http://purl.uniprot.org/citations/18925698http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
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Aim

To determine the prognostic value of cell cycle regulators cyclin D1 and p27 for papillary thyroid carcinomas.

Methods

Analysis included 180 patients with papillary thyroid carcinoma who underwent surgery at Split University Hospital Center between 1999 and 2001. Clinical data were obtained from clinical charts and histopathology reports. Immunohistochemistry was performed on formalin-fixed, paraffin-embedded tissue by antibody p27 and cyclin D1. Quantification was based on the intensity and distribution of nuclear staining.

Results

Univariate analysis showed that sex (P=0.019) and capsular invasion (P=0.010) were significant predictors of lymph node metastases, whereas age (P=0.96), histopathological variant (P=0.075), size (P=0.556) and multifocality (P=0.131) were not. Univariate analysis also showed that overexpression of cyclin D1 (P<0.001) and underexpression of p27 (P<0.001) predicted lymph node metastases in papillary thyroid carcinomas. There was a significant correlation between cyclin D1 (P=0.024) and p27 (P=0.029) expression in two prognostic groups of low and high risk. Low risk group was cyclin D1 negative and p27 positive, while high risk group was cyclin D1 positive and p27 negative. Multivariate analysis confirmed that sex (P=0.041), capsular invasion (P=0.027), and p27 (P<0.001) were strong independent predictors of lymph node metastases in the high-risk group.

Conclusions

Immunohistochemical analysis of p27 expression may be a valuable tool for identifying risk of lymph node metastases and more aggressive behavior of papillary thyroid carcinoma."xsd:string
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http://purl.uniprot.org/citations/18925698http://purl.uniprot.org/core/author"Kunac N."xsd:string
http://purl.uniprot.org/citations/18925698http://purl.uniprot.org/core/author"Bedekovic V."xsd:string
http://purl.uniprot.org/citations/18925698http://purl.uniprot.org/core/author"Gluncic I."xsd:string
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http://purl.uniprot.org/citations/18925698http://purl.uniprot.org/core/name"Croat Med J"xsd:string
http://purl.uniprot.org/citations/18925698http://purl.uniprot.org/core/pages"643-649"xsd:string
http://purl.uniprot.org/citations/18925698http://purl.uniprot.org/core/title"Cyclin D1 and p27 expression as prognostic factor in papillary carcinoma of thyroid: association with clinicopathological parameters."xsd:string
http://purl.uniprot.org/citations/18925698http://purl.uniprot.org/core/volume"49"xsd:string
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