Increased expression of epidermal fatty acid binding protein, cofilin, and 14-3-3-[sigma] (stratifin) detected by two-dimensional gel electrophoresis, mass spectrometry and microsequencing of drug-resistant human adenocarcinoma of the pancreas
In order to study possible mechanisms leading to chemoresistance in pancreatic adenocarcinoma we examined the global protein expression of pancreatic cancer cells in vitro. We used a cell culture model derived from the adenocarcinoma of the pancreas (EPP85-181P). A classical multidrug-resistant subl...
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| Main Authors: | , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
25 October 1999
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| In: |
Electrophoresis
Year: 1999, Volume: 20, Issue: 14, Pages: 2952-2960 |
| ISSN: | 1522-2683 |
| DOI: | 10.1002/(SICI)1522-2683(19991001)20:14<2952::AID-ELPS2952>3.0.CO;2-H |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1002/(SICI)1522-2683(19991001)20:14<2952::AID-ELPS2952>3.0.CO;2-H Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/%28SICI%291522-2683%2819991001%2920%3A14%3C2952%3A%3AAID-ELPS2952%3E3.0.CO%3B2-H 
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| Author Notes: | Pranav Sinha, Gero Hütter, Eckart Köttgen, Manfred Dietel, Dirk Schadendorf, Hermann Lage |
MARC
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| 245 | 1 | 0 | |a Increased expression of epidermal fatty acid binding protein, cofilin, and 14-3-3-[sigma] (stratifin) detected by two-dimensional gel electrophoresis, mass spectrometry and microsequencing of drug-resistant human adenocarcinoma of the pancreas |c Pranav Sinha, Gero Hütter, Eckart Köttgen, Manfred Dietel, Dirk Schadendorf, Hermann Lage |
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| 520 | |a In order to study possible mechanisms leading to chemoresistance in pancreatic adenocarcinoma we examined the global protein expression of pancreatic cancer cells in vitro. We used a cell culture model derived from the adenocarcinoma of the pancreas (EPP85-181P). A classical multidrug-resistant subline, EPP85-181RDB, selected in presence of daunorubicin, and an atypical multidrug-resistant cell variant, EPP85-181RNOV, selected in presence of mitoxantrone, were analyzed using two-dimensional electrophoresis. After staining and image analysis, spots of interest were isolated using preparative two-dimensional electrophoresis and subjected to mass spectrometry and microsequencing. Three proteins, E-FABP, cofilin, and 14-3-3-σ (stratifin), were overexpressed in chemoresistant cell lines. Cofilin was present in both multidrug in chemoresistant cell lines. Cofilin was present in both multidrug-resistant cell lines. E-FABP and 14-3-3-σ (stratifin) was found to be overexpressed only in the mitoxantrone-selected atypical multidrug-resistant cell line. The possible significance of these findings is discussed. | ||
| 650 | 4 | |a 14-3-3-σ (stratifin) | |
| 650 | 4 | |a Chemoresistance | |
| 650 | 4 | |a Cofilin | |
| 650 | 4 | |a Epidermal fatty acid binding protein | |
| 650 | 4 | |a Multidrug resistance | |
| 650 | 4 | |a Pancreatic carcinoma | |
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