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Cancer Research and Treatment > Volume 35(6); 2003 > Article
Cancer Research and Treatment 2003;35(6): 489-496. doi: https://doi.org/10.4143/crt.2003.35.6.489
Proteomic Profiling of Human Small Cell Lung Cancer Cell Line NCI-H211
Hee Young Cho, Mi Kyung Kim, Young Do Yoo, Myung Ju Ahn, Joung Soon Jang
1Department of Internal Medicine, GyeongSang NationalUniversity College of Medicine and GyeongSang Institute ofHealth Sciences, Jinju, Korea. jsjang@nongae.gsnu.ac.kr
2Genomic Research Center for Lung and Breast/Ovarian Cancers,Korea University College of Medicine, Seoul, Korea.
3Department of Internal Medicine, Hanyang University Collegeof Medicine, Seoul, Korea.
  Published online: December 31, 2003.
Small cell lung cancer is one of the major causes of death from cancer worldwide. To explore the expressions of global protein in small cell lung cancer cells, a proteomic approach, to identify the proteins, was used and the establishment of a protein reference map attempted.
Two-dimensional gel electrophoresis (2-DE), with subsequent analysis by mass spectrometry (MS), was applied to the study of protein identification from a small cell lung cancer cell line, NCI- H211. The cells were lysed, and the extracts subjected to isoelectric focusing, with immobilized pH gradients, followed by second dimension SDS-PAGE. The polypeptides were identified by peptide mass fingerprinting, with MALDI-TOF MS, after in-gel protein digestion.
From silver staining of the gel, around two thousands protein spots were separated by the 2-DE. Of these protein spots visualized in the gel, one hundred and ten were identified by peptide mass fingerprinting. Different proteins, such as enzymes, cytoskeletal proteins and proteins common to eukaryotic cells, were identified.
The protein expressions of the small cell lung cancer cells were analyzed to establish a protein reference map. The reference map presented here may serve as a working tool for the further study of small cell lung cancer.
Key words: Proteome;Small cell lung cancer;Reference map
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