[Molecular aspects of head and neck, and lung cancer oncogenesis]

Area of Science:

• Oncology
• Molecular Biology
• Carcinogenesis

Background:

• Lung and head and neck cancers develop through a multistep process involving oncogene activation and tumor suppressor gene inactivation.
• These cancers share common molecular pathways and are linked to tobacco carcinogen exposure.
• Molecular abnormalities characteristic of these cancers can be detected in pre-malignant lesions and normal tissues.

Purpose of the Study:

• To explore the shared molecular basis of lung and head and neck carcinogenesis.
• To identify molecular alterations that can be targeted for therapeutic intervention.
• To evaluate the potential for molecular targeted agents in curative and chemopreventive strategies.

Main Methods:

• Analysis of molecular abnormalities in cancer development.
• Comparison of molecular players in lung and head and neck carcinogenesis.
• Investigation of molecular alterations in pre-malignant and normal tissues.

Main Results:

• Identified common molecular features and players in lung and head and neck cancer development.
• Confirmed the role of tobacco carcinogens in initiating these multi-step processes.
• Demonstrated the presence of molecular alterations in pre-malignant and normal tissues, suggesting early events in carcinogenesis.

Conclusions:

• Knowledge of molecular carcinogenesis provides a basis for selecting targeted therapeutic strategies.
• Molecular targeted agents hold promise for both treating and preventing lung and head and neck cancers.
• Early detection of molecular alterations in pre-malignant lesions could inform targeted chemoprevention.