Document Detail

Transfection of truncated bone morphogenetic protein receptor-II into oral squamous cell carcinoma cell line Tca8113 and inhibitory effect on proliferation and inductive effect on apoptosis.
MedLine Citation:
PMID:  21496104     Owner:  NLM     Status:  Publisher    
J Oral Pathol Med (2010) Bone morphogenetic proteins (BMPs), one of the crucial regulators in embryonic development and bone formation, have been implicated in epithelium-derived tumors. Previous results showed the involvement of overexpression of BMP 2, 4, 5 in the carcinogenesis of oral epithelia. The ability of BMP receptor-II mutant to modify the malignant phenotype of oral squamous cell carcinoma cell line Tca8113 by blocking the BMP signal transduction pathway has been proposed. In this study, a negative truncated mutant of the BMP receptor-II (tBMPR-II) was transfected into Tca8113 cells. The effects were evaluated though RT-PCR, 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay, BrdU staining, cell cyclin assay, TdT-mediated dUTP nick end labeling (TUNEL) staining, and cell cycle protein detection. Overexpression of tBMPR-II gene transfection truncates the expression of BMPR-II mRNA expression, but not BMP 2, 4, 5. tBMPR-II resulted in a remarkable inhibition of cell proliferation and viability compared with control Tca8113. The inhibitory effects were partly attributed to the induction of apoptosis and cell cycle arrest in G(0) /G(1) accompanied by downregulation of the intracellular cell cycle proteins of cyclin D1 and cyclin-dependent kinases 4, as well as the upregulation of p27 and p57. Loss of BMP signals correlates tightly with suppression of cell proliferation, induction of apoptosis, and benign transformation of Tca8113 cells phenotype.
Sheng Fu; Hong-Bing Lv; Yuan Liu; Yu Zhao; Li-Sheng He; Yan Jin
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-12-24
Journal Detail:
Title:  Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology     Volume:  -     ISSN:  1600-0714     ISO Abbreviation:  -     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2011-4-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8911934     Medline TA:  J Oral Pathol Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2010 John Wiley & Sons A/S.
Department of Oral and Maxillofacial Surgery, Fuzhou General Hospital of Nanjing Command, PLA, Fuzhou, China Department of Endodontics, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China Department of Oral Histology and Pathology, School of Stomatology, The Fourth Military Medical University, Xi'an, China Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China.
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