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Elevated interferon-induced protein with tetratricopeptide repeats 3 (IFIT3) is a poor prognostic marker in pancreatic ductal adenocarcinoma.
- Source :
-
Journal of cancer research and clinical oncology [J Cancer Res Clin Oncol] 2017 Jun; Vol. 143 (6), pp. 1061-1068. Date of Electronic Publication: 2017 Feb 17. - Publication Year :
- 2017
-
Abstract
- Purpose: Interferon-induced protein with tetratricopeptide repeats 3 (IFIT3) gene from IFITs family is one gene among hundreds of IFN-stimulated genes. The potential role of IFIT3 in cancer is scarcely understood. In addition, the clinical relevance of IFIT3 is not yet known in pancreatic ductal adenocarcinoma (PDAC). We evaluated the prognostic significance of this gene in PDAC patients.<br />Methods: The expression of IFIT3 was analyzed in pancreatic cancer cell lines with different metastatic potential (FG and L3.6pl) and one established gemcitabine resistant cell variant-L3.6plGres. Second, we analyzed the protein expression in tissue microarrays (TMA) from specimens of 254 radically resected patients with pancreatic adenocarcinoma. The prognostic relevance of IFIT3 was evaluated by the Kaplan-Meier and Cox regression analysis.<br />Results: L3.6pl cells with an aggressive capacity showed a significant higher expression of IFIT3 as compared to FG cells. IFIT3 was accumulated in gemcitabine resistant cells. Overexpression of IFIT3 increased the resistance of apoptosis against gemcitabine treatment. Patients who had high expression of IFIT3 (32%) and received chemotherapy had a statistically significant reduced survival in multivariate analysis.<br />Conclusions: High expression of IFIT3 enhances anti-apoptotic activity and chemotherapy resistance of PDAC cells. High expression of IFIT3 was independently correlated to shorter patients' survival and may serve as a prognostic marker.
- Subjects :
- Adult
Aged
Aged, 80 and over
Biomarkers, Tumor metabolism
Carcinoma, Pancreatic Ductal genetics
Carcinoma, Pancreatic Ductal mortality
Cell Proliferation drug effects
Cell Proliferation genetics
Deoxycytidine analogs & derivatives
Deoxycytidine pharmacology
Female
Gene Expression Regulation, Neoplastic
Humans
Intracellular Signaling Peptides and Proteins metabolism
Male
Middle Aged
Pancreatic Neoplasms genetics
Pancreatic Neoplasms mortality
Prognosis
Retrospective Studies
Tumor Cells, Cultured
Up-Regulation genetics
Gemcitabine
Biomarkers, Tumor genetics
Carcinoma, Pancreatic Ductal diagnosis
Intracellular Signaling Peptides and Proteins genetics
Pancreatic Neoplasms diagnosis
Subjects
Details
- Language :
- English
- ISSN :
- 1432-1335
- Volume :
- 143
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Journal of cancer research and clinical oncology
- Publication Type :
- Academic Journal
- Accession number :
- 28210844
- Full Text :
- https://doi.org/10.1007/s00432-017-2351-4