PMID: 3080564Jan 1, 1986Paper

Effect of excisional wounding on DMBA-induced hamster tongue carcinogenesis

Journal of Oral Pathology
H Maeda, Y Kameyama

Abstract

The purpose of this study was to investigate histologically the effect of wounding on the hamster tongue after pretreatment with DMBA. The animals in which the tips of the tongues were pretreated with DMBA for 8 weeks, subsequently excised, and had no treatment or received applications of acetone, showed epithelial dysplasias. The animals which had the same pretreatment, excision, and received additional post-excision applications of DMBA for 9-13 days, developed squamous cell carcinomas. However, the animals which were pretreated with DMBA for 8 weeks but had no excision, did not show any pathologic changes, even though they received additional applications of DMBA for 9-13 days. The animals which received no pretreatment with DMBA for 8 weeks but had an excision, showed normal wound healing, even though they had a post-treatment with DMBA for 9-13 days. The results of the present study indicated that excisional wounding acted as a promotional stimulus in inducing the appearance of epithelial dysplasias or carcinomas of tongues initiated with the carcinogen DMBA.

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Related Concepts

Squamous Cell Carcinoma
Mesothelium
Cricetus
Mesocricetus
Tongue
Malignant Neoplasm of Tongue
Wounds, Penetrating
9,10-Dimethyl-1,2-benzanthracene

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