Abstract | AIMS: METHODS AND RESULTS:
Mucin expression was examined by immunohistochemistry in surgical specimens resected from 101 patients with PDAC and 33 with chronic pancreatitis, and in 40 normal pancreatic tissue specimens. A quickscore (QS, range 0-300) was calculated by multiplying staining intensity by the percentage of positive cells. A diagnostic model was developed for MUC QS (MUC1, MUC2, MUC3, MUC4, MUC5AC, and MUC6), based on a receiver operating characteristic (ROC) curve and logistic regression analysis. Median QS values for MUC1 and MUC5AC were significantly higher for PDAC, whereas patients with non-malignant tissues had higher values for MUC3 and MUC6. The area under the curve for the ROC curve derived from the diagnostic model including MUC3, MUC5AC and MUC6 was 0.96 [95% confidence interval (CI) 0.91-0.98], with 85% sensitivity and 94% specificity. Median QS values for MUC2 were significantly higher in patients with less advanced tumours, whereas venous invasion was associated with a lower QS for MUC6. Moreover, multivariate survival analysis revealed that low MUC6 expression was a negative prognostic factor, with a hazard ratio of 1.73 (95% CI 1.07-2.81). CONCLUSIONS: The three-MUC diagnostic model (MUC3, MUC5AC, and MUC6) showed an excellent ability to discriminate pancreatic cancer from non-malignant tissues, and yielded information that may prove useful for the development of clinical applications.
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Authors | Marek Sierzega, Damian Młynarski, Romana Tomaszewska, Jan Kulig |
Journal | Histopathology
(Histopathology)
Vol. 69
Issue 4
Pg. 582-91
(Oct 2016)
ISSN: 1365-2559 [Electronic] England |
PMID | 27165582
(Publication Type: Journal Article)
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Copyright | © 2016 John Wiley & Sons Ltd. |
Chemical References |
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Topics |
- Aged
- Biomarkers, Tumor
(analysis)
- Carcinoma, Pancreatic Ductal
(diagnosis, mortality)
- Diagnosis, Differential
- Female
- Gene Expression Profiling
- Humans
- Immunohistochemistry
- Kaplan-Meier Estimate
- Male
- Middle Aged
- Mucins
(analysis, biosynthesis)
- Pancreatic Neoplasms
(diagnosis, mortality)
- Pancreatitis
(diagnosis)
- Prognosis
- Proportional Hazards Models
- Transcriptome
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