The tumour stroma of oral squamous cell carcinomas show increased vascularity compared with adjacent host tissue

Dunstan, S, Powe, D G, Wilkinson, M, Pearson, J and Hewitt, R E (1997) The tumour stroma of oral squamous cell carcinomas show increased vascularity compared with adjacent host tissue. British Journal of Cancer, 75 (4). pp. 559-65. ISSN 0007-0920

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Abstract

For tumours to grow they must acquire an adequate blood supply, and the use of drugs to inhibit tumour vascularization is one promising approach to anti-cancer therapy. Clear information is therefore required on the vascular architecture of human tumours and animal tumour models used for testing anti-angiogenic therapies. Many previous studies on animal tumour models have shown that carcinomas are least vascular in their centres and that host tissues become more vascular with proximity to the tumour. However, we have previously found that many human colorectal carcinomas do not show this pattern. The present study on human oral squamous cell carcinomas (SCCs) again reveals significant differences. Paraffin sections from 24 SCCs were immunostained using the QBEnd-10 monoclonal antibody to demonstrate blood vessels, and these were quantified by interactive morphometry using a Kontron Videoplan system. In most carcinomas, viable tumour tissue was no less vascular in the tumour centre than in the tumour periphery. Although tumours are known to release angiogenic factors, viable tumour tissue was less vascular than adjacent host tissues. However, the tumour stroma, by itself, was more vascular than adjacent host tissues. Host tissue adjacent to tumour showed no obvious increase in vascular density with increasing proximity to the tumour edge, which suggests that tumour-released angiogenic factors are only effective over a short distance.

Item Type: Article
Uncontrolled Keywords: carcinoma, squamous cell,connective tissue,humans,mouth neoplasms,neovascularization, pathologic
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
Depositing User: Pure Connector
Date Deposited: 23 Mar 2016 13:02
Last Modified: 24 Jul 2019 22:07
URI: https://ueaeprints.uea.ac.uk/id/eprint/58002
DOI: 10.1038/bjc.1997.98

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