Abstract
AbstractCyclin D1 is frequently overexpressed in human neoplasias by gene rearrangement and amplification. In addition, Ras, PTEN and β‐catenin appear to modulate cyclin D1 levels. Since the causes of cyclin D1 overexpression are poorly understood in EC, we investigated whether or not this alteration is due to cyclin D1 gene amplification or to RAS, PTEN and β‐catenin mutation. We analyzed cyclin D1 expression in 18 AEHs, 65 EECs and 27 NEECs by immunohistochemistry as well as CCND1 gene amplification by FISH. In EECs, mutations in K‐RAS, PTEN, β‐catenin and CCND1 were studied by PCR‐SSCP and sequencing and MSI was evaluated by analyzing BAT‐25 and BAT‐26 microsatellites. Contingency tests were used to evaluate the relationships between variables. Cyclin D1 overexpression was not observed in AEHs but was present in 13.8% of EECs and 11.2% of NEECs (p = 0.031). CCND1 amplification was more frequent in NEECs (26.3%) than in EECs (2.1%) (p = 0.002). In EECs, cyclin D1 overexpression was not associated with mutations in K‐RAS, PTEN or β‐catenin. However, in EECs with β‐catenin mutations, cyclin D1 was expressed mainly by cells expressing β‐catenin in the cytoplasm and nucleus but not in those with membranous expression. Finally, cyclin D1 overexpression was associated with MSI (p = 0.047). The molecular alterations associated with cyclin D1 overexpression differ in the 2 clinicopathologic types of EC. Cyclin D1 overexpression is associated with gene amplification in NEECs and with nucleocytoplasmic expression of β‐catenin and MSI in EECs. © 2004 Wiley‐Liss, Inc.
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References
49
[1]
CDK inhibitors: positive and negative regulators of G1-phase progression

C. J. Sherr, J. M. Roberts

Genes & Development 10.1101/gad.13.12.1501
[2]
Winston JT "Regulation of the cell cycle machinery by oncogenic Ras" Oncogene (1996)
[8]
Campo E "Mantle‐cell lymphoma" Semin Hematol (1999)
[9]
Simpson JF "Amplification of CCND1 and expression of its protein product, cyclin D1, in ductal carcinoma in situ of the breast" Am J Pathol (1997)
[10]
Schraml P "Tissue microarrays for gene amplification surveys in many different tumor types" Clin Cancer Res (1999)
[19]
Ruhul Quddus M "Expression of cyclin D1 in normal, metaplastic, hyperplastic endometrium and endometrioid carcinoma suggests a role in endometrial carcinogenesis" Arch Pathol Lab Med (2002) 10.5858/2002-126-0459-eocdin
[21]
Cyclin D1 gene (CCND1) mutations in endometrial cancer

Gema Moreno-Bueno, Sandra Rodriguez-Perales, Carolina Sánchez-Estévez et al.

Oncogene 10.1038/sj.onc.1206868
[23]
Dahia PL "Somatic deletions and mutations in the Cowden disease gene, PTEN, in sporadic thyroid tumors" Cancer Res (1997)
[24]
Chen J "Presence and instability of repetitive elements in sequences the altered expression of which characterizes risk for colonic cancer" Cancer Res (1995)
[25]
El‐Hizawi S "Induction of gene amplification as a gain‐of‐function phenotype of mutant p53 proteins" Cancer Res (2002)
[26]
Pere H "Distinct chromosomal imbalances in uterine serous and endometrioid carcinomas" Cancer Res (1998)
[32]
Tashiro H "Mutations in PTEN are frequent in endometrial carcinoma but rare in other common gynecological malignancies" Cancer Res (1997)
[33]
Risinger JI "PTEN/MMAC1 mutations in endometrial cancers" Cancer Res (1997)
[34]
Gurin CC "Causes and consequences of microsatellite instability in endometrial carcinoma" Cancer Res (1999)
[38]
Mutter GL "Molecular identification of latent precancers in histologically normal endometrium" Cancer Res (2001)
[41]
Zhu X "PTEN induces G1 cell cycle arrest and decreases cyclin D3 levels in endometrial carcinoma cells" Cancer Res (2001)
[48]
Duval A "Mutations at coding repeat sequences in mismatch repair‐deficient human cancers: toward a new concept of target genes for instability" Cancer Res (2002)
[49]
Glycogen synthase kinase-3β regulates cyclin D1 proteolysis and subcellular localization

J. Alan Diehl, Mangeng Cheng, Martine F. Roussel et al.

Genes & Development 10.1101/gad.12.22.3499
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Journal of Molecular Medicine
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49
References
Details
Published
Feb 19, 2004
Vol/Issue
110(2)
Pages
194-200
License
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Funding
Fundación Inocente Inocente-Spain Award: PI020355
Cite This Article
Gema Moreno‐Bueno, Sandra Rodríguez‐Perales, Carolina Sánchez‐Estévez, et al. (2004). Molecular alterations associated with cyclin d1 overexpression in endometrial cancer. International Journal of Cancer, 110(2), 194-200. https://doi.org/10.1002/ijc.20130