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2 "DNA copy number variations"
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Original Articles
Difference of Genome-Wide Copy Number Alterations between High-Grade Squamous Intraepithelial Lesions and Squamous Cell Carcinomas of the Uterine Cervix
Bum Hee Lee, Sangyoung Roh, Yu Im Kim, Ahwon Lee, Su Young Kim
Korean J Pathol. 2012;46(2):123-130.   Published online April 25, 2012
DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.2.123
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  • 2 Citations
AbstractAbstract PDF
Background

About 10% of high-grade squamous intraepithelial lesions (HSILs) progress to invasive carcinomas within 2-10 years. By delineating the events that occur in the early stage of the invasion, the pathogenesis of cervical cancer could be better understood. This will also propose the possible methods for inhibiting the tumor invasion and improving the survival of patients.

Methods

We compared the genomic profiles between the HSIL and the invasive squamous cell carcinoma (SCC) using an array comparative genomic hybridization. Using recurrently altered genes, we performed a principal component analysis to see variation of samples in both groups. To find possibly affected pathways by altered genes, we analyzed genomic profiles with the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway database and GOEAST software.

Results

We found 11q12.3 and 2p24.1 regions have recurrent copy number gains in both groups. 16p12-13 and 20q11-13 regions showed an increased copy number only in cases of HSIL. 1q25.3 and 3q23-29 regions showed copy number gains only in cases of SCC. Altered genes in the SCC group were related to the mitogen-activated protein kinase signaling pathway and the RNA transport. Altered genes in the HSIL group were related to the ubiquitin mediated proteolysis and cell adhesion molecules.

Conclusions

Our results showed not only that gains in 11q12.3 and 2p24.1 were early events occurring in the premalignant lesions and then maintained in cases of SCC but also that gains in 1q25.3 and 3q23-29 were late events occurring after invasion in those of SCC.

Citations

Citations to this article as recorded by  
  • Cytokeratin and protein expression patterns in squamous cell carcinoma of the oral cavity provide evidence for two distinct pathogenetic pathways
    GESCHE FROHWITTER, HORST BUERGER, PAUL J. VAN DIEST, EBERHARD KORSCHING, JOHANNES KLEINHEINZ, THOMAS FILLIES
    Oncology Letters.2016; 12(1): 107.     CrossRef
  • 'Drawing' a Molecular Portrait of CIN and Cervical Cancer: a Review of Genome-Wide Molecular Profiling Data
    Olga V Kurmyshkina, Pavel I Kovchur, Tatyana O Volkova
    Asian Pacific Journal of Cancer Prevention.2015; 16(11): 4477.     CrossRef
Copy Number Alterations of BCAS1 in Squamous Cell Carcinomas.
Yu Im Kim, Ahwon Lee, Jennifer Kim, Bum Hee Lee, Sung Hak Lee, Suk Woo Nam, Sug Hyung Lee, Won Sang Park, Nam Jin Yoo, Jung Young Lee, Sang Ho Kim, Su Young Kim
Korean J Pathol. 2011;45(3):271-275.
DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.3.271
  • 2,844 View
  • 15 Download
  • 1 Citations
AbstractAbstract PDF
BACKGROUND
Breast carcinoma amplified sequence 1 (BCAS1), located in 20q13, is amplified and overexpressed in breast cancers. Even though BCAS1 is expected to be an oncogene candidate, its contribution to tumorigenesis and copy number status in other malignancies is not reported. To elucidate the role of BCAS1 in squamous cell carcinomas, we investigated the copy number status and expression level of BCAS1 in several squamous cell carcinoma cell lines, normal keratinocytes and primary tumors.
METHODS
We quantitated BCAS1 gene by real-time polymerase chain reaction (PCR). Expression level of BCAS1 was measured by real-time reverse transcription-PCR and immunoblot.
RESULTS
Seven (88%) of 8 squamous cell carcinoma cell lines showed copy number gain of BCAS1 with various degrees. BCAS1 gene in primary tumors (73%) also showed copy number gain. However, expression level did not show a linear correlation with copy number changes.
CONCLUSIONS
We identified copy number gain of BCAS1 in squamous cell carcinomas. Due to lack of linear correlation between copy numbers of BCAS1 and its expression level, we could not confirm that the overexpression of BCAS1 is a common finding in squamous cell carcinoma cell lines. However, this study shows that the copy number gain of BCAS1 is a common finding in squamous cell carcinomas.

Citations

Citations to this article as recorded by  
  • Electrochemical Approaches for Preparation of Tailor-Made Amino Acids
    Nana Wang, Jingcheng Xu, Haibo Mei, Hiroki Moriwaki, Kunisuke Izawa, Vadim A. Soloshonok, Jianlin Han
    Chinese Journal of Organic Chemistry.2021; 41(8): 3034.     CrossRef

JPTM : Journal of Pathology and Translational Medicine