Zargoun, I.M., Bingle, L. orcid.org/0000-0002-4587-9384 and Speight, P.M. orcid.org/0000-0001-6459-1370 (2017) DNA ploidy and cell cycle protein expression in oral squamous cell carcinomas with and without lymph node metastases. Journal of Oral Pathology and Medicine, 46 (9). pp. 738-743. ISSN 0904-2512
Abstract
Background: Oral squamous cell carcinoma (OSCC) is the most frequently occurring malignant tumour in the oral cavity. OSCC arises because of multiple genetic alterations. Cell cycle aberrations and aneuploidy are reportedly among the main characteristics of cancer cells and are associated with aggressive growth and poor prognosis. Methods: The study sample included 47 non-metastasised (NM) and 39 metastasised (M) primary OSCC, with matched positive cervical lymph nodes (LN) and 17 normal oral mucosa (NOM) samples. Tissue microarrays (TMAs) were prepared with a minimum of three cores from each case. TMA sections were cut and immunostained with MCM2, Ki-67, geminin and cyclin D1 antibodies. DNA image analysis was performed on the whole tissue section before TMAs were created. Results: The results revealed that there were no differences in cell cycle protein expression in different areas of the tumours or between the metastatic and non-metastatic carcinomas. None of the cell cycle proteins showed significant differences between the lymph node metastasis and the primary OSCC, except for Ki-67. Geminin/Ki-67 ratio showed significant difference between metastatic and non-metastatic tumours. Aneuploidy was detected in all (100%) cases of OSCC. Similarly, all lymph node samples (39 cases) were aneuploid. Conclusion: The results suggest that although there was dysregulation of cell cycle regulatory proteins, only Ki-67 and the MCM2/Ki-67 and geminin/Ki-67 ratios may have prognostic significance in oral cancer. DNA ploidy alone was not specific and may not be a good tool to evaluate prognosis or metastatic progression in oral cavity carcinomas.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 Wiley. This is an author produced version of a paper subsequently published in Journal of Oral Pathology and Medicine. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Oral squamous cell carcinoma; DNA ploidy; cell cycle proteins; image cytometry |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > School of Clinical Dentistry (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 15 Feb 2017 12:46 |
Last Modified: | 30 Jun 2023 13:39 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1111/jop.12554 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:112241 |