University of New South Wales Study Identifies Significant Cancer Risks Linked to E-Cigarette Use Independent of Tobacco Smoking

New research from UNSW Sydney identifies vaping as a likely cause of lung and oral cancer, citing DNA damage and tumor growth in multidisciplinary studies.

By: AXL Media

Published: Mar 31, 2026, 5:49 AM EDT

Source: Information for this report was sourced from University of New South Wales

Qualitative Evidence of Vaping Related Carcinogenicity

While public health discussions have frequently focused on e-cigarettes as a "gateway" to traditional smoking, new research published in the journal Carcinogenesis suggests the devices pose a direct oncogenic threat. Adjunct Professor Bernard Stewart AM and a team of global investigators have determined that those who vape face an increased risk of cancer compared to non-users. This assessment is based on a qualitative review of existing scientific literature, which indicates that the chemical processes involved in vaping are likely to induce malignant changes in the lungs and oral cavity. The findings represent one of the most detailed attempts to isolate the health impacts of vaping from those of combustible tobacco.

The Multi Disciplinary Approach to Risk Assessment

To reach these conclusions, the UNSW team integrated perspectives from pharmacists, epidemiologists, and thoracic surgeons. This diverse expertise allowed the researchers to look beyond simple population trends and examine the biological mechanisms at play. The team identified numerous carcinogenic compounds within e-cigarette aerosols, noting that heating coils often release metals into the inhaled vapor. By combining evidence from mouse models, which showed the development of lung tumors, with laboratory studies on cellular disruption, the investigators found a striking consistency across different scientific fields regarding the dangers of nicotine-laced aerosols.

The Biological Indicators of Cellular Malfunction

The study highlights several key biomarkers that indicate a high risk of cancer progression in regular vapers. Specifically, the research points to measurable DNA damage, oxidative stress, and chronic tissue inflammation as precursors to tumor growth. Unlike traditional cigarettes, which have been studied for over a century, e-cigarettes have only been in widespread use for approximately two decades. However, the laboratory data showing disrupted biological pathways suggests that the internal damage caused by inhaling these aerosols mirrors the early stages of tobacco-induced disease. This mechanistic evidence provides a clear signal of harm while long-term human epidemiological studies continue to accumulate.