Mouse models of chemically-induced lung carcinogenesis

Primary pulmonary malignancies remain the major source of cancer-related deaths in the Western World. While surgical resection is an efficacious therapy for those with early stage disease, the majority of patients present with advanced malignancies and systemic treatments, such as cytotoxic chemotherapy, have only limited efficacy in lung cancer. Furthermore, chemoprevention for current or former smokers has demonstrated only limited success using available agents. The mouse model of primary lung carcinogenesis represents a very valuable tool for the study of tumor initiation, promotion, and therapy. Here we discuss several models of chemically-induced murine lung cancer with a specific emphasis on translational and clinically-relevant lines of investigation. We emphasize the pros and cons of currently available models in order to facilitate further investigations into the development and treatment of primary pulmonary malignancies.