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Related Experiment Video

Updated: Jun 4, 2026

Chemical-Induced Skin Carcinogenesis Model Using Dimethylbenz[a]Anthracene and 12-O-Tetradecanoyl Phorbol-13-Acetate (DMBA-TPA)

Chemical-Induced Skin Carcinogenesis Model Using Dimethylbenz[a]Anthracene and 12-O-Tetradecanoyl Phorbol-13-Acetate (DMBA-TPA)

Published on: December 19, 2019

Cutaneous two-stage chemical carcinogenesis.

Renata B Filler¹, Scott J Roberts, Michael Girardi

¹Department of Dermatology, Yale University School of Medicine, New Haven, CT 06510, USA.

|March 2, 2011

Summary

This study details a two-stage chemical carcinogenesis model in mice. It uses 7,12-dimethylbenz[a]anthracene (DMBA) and 12-O-tetradecanoylphorbol 13-acetate (TPA) to induce skin tumors, aiding cancer research.

Area of Science:

Dermatology
Oncology
Toxicology

Background:

Cutaneous carcinogenesis research utilizes chemical induction in mice to study tumor development.
This model investigates factors influencing skin tumor susceptibility, growth, and progression.

Purpose of the Study:

To describe a two-stage protocol for inducing cutaneous tumors in mice.
To enable the study of molecular and immunological pathways in skin cancer.

Main Methods:

A single topical application of 7,12-dimethylbenz[a]anthracene (DMBA) as the initiator.
Repeated topical applications of 12-O-tetradecanoylphorbol 13-acetate (TPA) as the promoter.
Monitoring tumor development, including benign papillomas and squamous cell carcinoma (SCC).

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Main Results:

The protocol successfully induces cutaneous tumors in mice.
Tumors observed include papillomas, which may regress or progress to SCC.
SCC can also arise without a visible precursor lesion.

Conclusions:

The two-stage chemical carcinogenesis model is valuable for studying early and late events in skin cancer.
This method facilitates research into the mechanisms of cutaneous malignancy.
It aids in identifying key molecular and immunological pathways in skin cancer development.