title: Candidates for tumor markers of cervical cancer discovered by proteomic analysis.
abstract: Cervical cancer is the second most common gynecological cancer among Korean women. While nationwide screening program has developed, the pathogenesis of cervical cancer is unknown. The aim of this study was to compare the protein expression profiles between cervical squamous carcinomas and normal cervical tissues in order to identify proteins that are related to the cancer. Three cervical cancer tissue samples and three normal cervical tissue samples were obtained and protein expression was compared and was identified in the samples with the use of matrix assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF-MS). A total of 20 proteins that showed up-regulated expression in the cervical cancer tissue samples were selected and identified. Seven proteins were matched to allograft inflammatory factor 1 (AIF-1), actine-like protein 2 (ALP2), brain type fatty acid-binding protein (B-FABP), NCK adaptor protein 1 (NCK-1), islet cell autoantigen 1 (ICA69), cationic trypsinogen (PRSS1), and cyclin-dependent kinase 4 (CDK4), but the remaining 13 proteins were unidentifiable. After confirmation by RT-PCR, Western blotting and immunohistochemistry, we found that B-FABP, NCK-1, and CDK4 were related to the pathogenesis of cervical cancer. These proteins are suggested as candidates of new pathological tumor markers for cervical cancer.
authors.affiliation: Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jae Yun
authors.initials: JY
authors.lastname: Song
authors.forename: Hyo Sook
authors.initials: HS
authors.lastname: Bae
authors.forename: Do Hyoung
authors.initials: do H
authors.lastname: Koo
authors.forename: Jae Kwan
authors.initials: JK
authors.lastname: Lee
authors.forename: Hak Hyun
authors.initials: HH
authors.lastname: Jung
authors.forename: Kyu Wan
authors.initials: KW
authors.lastname: Lee
authors.forename: Nak Woo
authors.initials: NW
authors.lastname: Lee
mesh_terms: D048868:Adaptor Proteins, Signal Transducing / Q000235:genetics / Q000378:metabolism; D014408:Biomarkers, Tumor / Q000235:genetics / Q000378:metabolism*; D015153:Blotting, Western; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000473:pathology; D051358:Cyclin-Dependent Kinase 4 / Q000235:genetics / Q000378:metabolism; D015180:Electrophoresis, Gel, Two-Dimensional; D050556:Fatty Acid-Binding Proteins / Q000235:genetics / Q000378:metabolism; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D015513:Oncogene Proteins / Q000235:genetics / Q000378:metabolism; D040901:Proteomics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D002583:Uterine Cervical Neoplasms / Q000378:metabolism* / Q000473:pathology
chemical_list: D048868:Adaptor Proteins, Signal Transducing; D014408:Biomarkers, Tumor; D050556:Fatty Acid-Binding Proteins; C078332:Nck protein; D015513:Oncogene Proteins; D051358:Cyclin-Dependent Kinase 4