Abstract:
:Oral squamous cell carcinoma (OSCC) is usually preceded by the oral premalignant lesions, mainly oral leukoplakia (OLK) after repeated insults of carcinogens, tobacco. B(a)P and DMBA are key carcinogens in tobacco smoke. In the present study, for the first time we established the cancerous cell line OSCC-BD induced by B(a)P/DMBA mixture and transformed from dysplastic oral leukoplakia cell line DOK. Cell morphology, proliferation ability, migration ability, colony formation, and tumorigenicity were studied and confirmed the malignant characteristics of OSCC-BD cells. We further identified the differential proteins between DOK and OSCC-BD cells by stable isotope dimethyl labeling based quantitative proteomic method, which showed 18 proteins up-regulated and 16 proteins down-regulated with RSD < 8%. Differential proteins are mainly related to cell cycle, cell proliferation, DNA replication, RNA splicing and apoptosis. Abberant binding function, catalysis activity and transportor activity of differential proteins might contribute to the malignant transformation of OLK. Of the 34 identified differential proteins with RSD < 8%, 13 novel cancer-related proteins were reported in the present study. This study might provide a new insight into the mechanism of OLK malignant transformation and the potent biomarkers for early diagnosis, meanwhile further facilitate the application of the quantification proteomics to carcinogenesis research.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Dong Y,Zhao Q,Ma X,Ma G,Liu C,Chen Z,Yu L,Liu X,Zhang Y,Shao S,Xiao J,Li J,Zhang W,Fu M,Dong L,Yang X,Guo X,Xue L,Fang F,Zhan Q,Zhang Ldoi
10.1038/srep12668subject
Has Abstractpub_date
2015-08-03 00:00:00pages
12668issn
2045-2322pii
srep12668journal_volume
5pub_type
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