Abstract
Prohibitin, a potential tumor suppressor, has been shown to be an anti- proliferative protein, a regulator of cell-cycle progression and in apoptosis. Recently, it was found to be over-expressed in breast cancer and gastric cancer, and it has been suggested as a biomarker in those diseases. To clarify the role and the prognostic significance of prohibitin expression in esophageal squamous cell carcinoma (ESCC), we analyzed the expression in ESCC and their corresponding nonneoplastic epithelia tissues by immunohistochemistry(IHC), Western blotting and real-time quantitative reverse transcription polymerase chain reaction(QRT-PCR).The relationship between prohibitin expression and clinicopathological variables was examined by statistical analysis. The findings suggested the up-regulation of prohibitin play an important role in the carcinogenesis of ESCC. The over-expression of prihibitin was significantly correlated with the depth of tumor, lymph node metastasis, distant metastasis, lymphatic invasion and vascular invasion of ESCC. These results suggested that prohibitin(+), lymph node metastasis and distant metastasis could be the independent risk factors for worse prognosis in ESCC patients.
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Abbreviations
- EC:
-
esophageal cancer
- ESCC:
-
esophageal squamous cell carcinoma
- IHC:
-
immunohistochemistry
- QRT-PCR:
-
real-time quantitative reverse-transcription polymerase chain reaction
- TNM:
-
tumor, node, metastases
- AJCC:
-
American Joint Committee on Cancer
- TMA:
-
tissue microarray
- PBS:
-
phosphate buffer solution
- DAB:
-
diaminobenzidine
- PMSF:
-
phenylmethylsulphonyl fluoride
- PVDF:
-
polyvinylidene difluoride
- HRP:
-
horseradish peroxidase
- ECL:
-
enhanced chemiluminescence
- RB:
-
retinoblastoma tumor suppressor protein
- BPH:
-
Benign Prostatic Hyperplasia
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Acknowledgements
This work was supported partly by a grant from the Innovation Project of Central South University (No.2340-76208). We would like to thank Dr. Zhen Zhang for his technical assistance.
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Ren, HZ., Wang, JS., Wang, P. et al. Increased Expression of Prohibitin and its Relationship with Poor Prognosis in Esophageal Squamous Cell Carcinoma. Pathol. Oncol. Res. 16, 515–522 (2010). https://doi.org/10.1007/s12253-009-9242-1
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DOI: https://doi.org/10.1007/s12253-009-9242-1