NIH-funded research R01 grant

Differentiating vaping from smoking through epigenetic and transcriptomic markers

Official title: Differentiating the biological effects of vaping from smoking by analyzing the methylome and transcriptome

Funded at University of Southern California · NIH-11348860 · Data updated 2026-11-12

This study looks at adults who vape or smoke to identify specific DNA methylation and gene expression changes that distinguish vaping from smoking, with the goal of finding biomarkers tied to health risks.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Southern California
NIH-funded
Lab location1 site (Los Angeles, UNITED STATES)
Project startAugust 15, 2023
Project endMay 31, 2028
Funding year2026
Award (this year)$397,500
NIH project number5R01DE031863-04
Project IDNIH-11348860 on NIH RePORTER

Who could benefit from this research

Could help

Adults 21+ who are current vapers, current smokers, or non-users, with no acute illnesses.

Less likely to help

Individuals under 21 or those not using tobacco products may not directly benefit from this study.

What this research studies

Researchers will compare epigenetic marks and RNA profiles in cells and tissues from healthy adult vapers, smokers, and non-users to separate the effects of vaping from smoking. The study will examine how exposure amount and duration, as well as different device features and cigarette types, influence these molecular changes. By linking molecular patterns to disease risk, the project aims to identify biomarkers of exposure and effect that could improve health risk assessments. The work will help clarify whether vaping poses distinct or similar risks compared to traditional smoking, informing patients about potential long-term health implications.

Why it matters

Potential benefit: If successful, patients could benefit from clearer biomarkers that help assess personal health risks related to vaping versus smoking.

How similar studies have gone: Previous work has shown that smoking and vaping can leave distinct epigenetic and transcriptomic signatures, supporting this approach.

Where this research is happening

  • University of Southern California
    Los Angeles, United States
    Active

Researchers

  • Principal investigator: Besaratinia, Ahmad — University of Southern California
  • Study coordinator: Besaratinia, Ahmad

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.