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Protein expression profile using two-dimensional gel analysis in squamous cervical cancer patients
Su-Mi Bae1, Hyun-Jin Min, Guo Hua Ding
1Cancer Research Institute, The Catholic University of Korea, Seoul, Korea.
Cancer Research and Treatment
|September 23, 2009
Summary
Researchers identified 35 differentially expressed proteins in squamous cell carcinoma (SCC) tissues from Korean women. This study advances the search for novel diagnostic markers for cervical cancer.
Area of Science:
- Proteomics
- Oncology
- Biochemistry
Background:
- Cervical cancer screening is evolving to identify biomarkers for tumor progression.
- Understanding protein expression in squamous cell carcinoma (SCC) is crucial for developing diagnostic tools.
Purpose of the Study:
- To analyze protein expression patterns in SCC tissues from Korean women.
- To identify candidate proteins for cervical cancer diagnosis and understand tumor progression.
Main Methods:
- Utilized two-dimensional polyacrylamide gel electrophoresis (2-DE) and matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry.
- Compared protein expression between normal cervix and SCC tissues.
- Identified differentially expressed proteins using PDQuest 2-D software and Mascot program.
Main Results:
- Detected a total of 35 proteins in SCC tissues.
- 17 proteins were up-regulated and 18 were down-regulated.
- Identified 12 known tumor-associated proteins and 21 novel proteins, including keratin 19/20 and alpha-enolase.
Conclusions:
- Two-dimensional polyacrylamide gel electrophoresis (2-DE) provides comprehensive protein expression profiles for SCC.
- Further characterization of these proteins may lead to the discovery of essential tumor-specific diagnostic markers for cervical cancer.
