E-cigarettes Show Lower Cell Toxicity Than Traditional Cigarettes

Nov.18.2022
E-cigarettes Show Lower Cell Toxicity Than Traditional Cigarettes
The study found that e-cigarettes have less impact on cells than traditional cigarettes, using extracellular vesicle proteomics for analysis.

On November 5th, a research team led by Associate Researcher Yu Suhong from Fuzhou University published a paper in the authoritative global toxicology journal, "Toxicology in Vitro," which found that the impact of electronic cigarettes on cells is significantly lower than that of traditional cigarettes.


The study used exosome proteomics for the first time to compare the effects of electronic cigarettes and traditional cigarettes on human bronchial epithelial cells. Exosomes are small membrane vesicles containing complex RNA and proteins, which can be used as biomarkers for early diagnosis and prognosis evaluation of diseases such as cancer.


Research data shows that cigarette tar leads to more differences in protein expression of extracellular vesicles within cells, and these are significantly enriched in cancer signaling pathways. Meanwhile, differences caused by e-cigarettes are less pronounced. Toxicology studies have also found that cigarette tar significantly inhibits cell activity, while e-cigarette tar did not produce similar negative effects, indicating that the cellular toxicity of e-cigarettes is relatively low.


The paper was published in the toxicology SCI journal, "In Vivo Toxicology.


In recent years, several studies have found that electronic cigarettes may be a form of harm reduction product.


In 2021, the Pennsylvania State University College of Medicine published a paper in Cancer stating that e-cigarettes could be effective tools for quitting smoking and also decrease the production of carcinogens in smokers' lungs. In 2022, an editorial in Nature suggested that for patients with gum health concerns, e-cigarettes may be a safer nicotine substitute and could reduce the risk of oral cancer.


According to Associate Researcher Yu Suhong, this study is the first to systematically analyze the safety of cigarettes and e-cigarettes starting from extracellular vesicles, filling a gap in the relevant field.


According to research findings, electronic cigarettes are less harmful than traditional cigarettes and may be a reduced-harm product," said Yu Suhong. However, electronic cigarettes are not entirely safe and should not be used by non-smokers.



Disclaimer

This article is provided solely for professional research, industry discussion, and informational purposes. Any references to brands, companies, products, technologies, or policies are made for factual reporting and analytical purposes only, and do not constitute endorsement, recommendation, promotion, or advertising by 2Firsts.

Nicotine-containing products, including but not limited to cigarettes, e-cigarettes, heated tobacco products, and nicotine pouches, carry significant health risks. Readers are responsible for complying with all applicable laws and regulations in their respective jurisdictions, including age restrictions and access limitations.

The information contained in this article should not be regarded as investment, legal, medical, regulatory, or commercial advice. While 2Firsts strives to ensure the accuracy and reliability of its content, it does not assume liability for any direct or indirect loss arising from errors, omissions, inaccuracies, or reliance on the information contained herein.

This article is not intended for individuals below the legal age for accessing tobacco or nicotine-related information in their jurisdiction.

 

Copyright Notice

This article is either original content produced by 2Firsts or content reproduced, translated, summarized, or adapted from third-party sources with attribution where applicable. The intellectual property rights of the original content remain with 2Firsts or the respective original rights holders.

No individual or organization may copy, reproduce, distribute, republish, modify, translate, or otherwise use this content without prior authorization. Any unauthorized use may result in legal action.

For copyright-related inquiries, corrections, or removal requests, please contact: info@2firsts.com.

 

AI-Assisted Translation and Editing Notice

Portions of this article may have been translated, edited, or reviewed with the assistance of artificial intelligence tools to improve efficiency and readability. Due to the limitations of AI-assisted translation and editing, discrepancies, omissions, or inaccuracies may exist when compared with the original source.

Where applicable, readers are advised to refer to the original source for the most complete and accurate information. If you identify any errors or believe that any content infringes upon your rights, please contact us at info@2firsts.com, and we will review and address the matter promptly.

Global Tobacco Control Faces Regional Adaptation Test as Nicotine Markets Evolve, Asian Specialist Says
Global Tobacco Control Faces Regional Adaptation Test as Nicotine Markets Evolve, Asian Specialist Says
As e-cigarettes, heated tobacco products and nicotine pouches expand across global markets, a central question is gaining urgency: can tobacco control rely on a universal policy model? In an interview with 2Firsts, Asian public health and addiction medicine specialist Dr. Rashidi Mohamed bin Pakri Mohamed says Western experience remains relevant, but policies must be adapted to local culture, healthcare systems, enforcement capacity, illicit markets and clinical evidence.
Jul.08
Tobacco Farming in the New Nicotine Era: Why Indian Farmers Struggle to Transition — Contributed by Samrat Chowdhery
Tobacco Farming in the New Nicotine Era: Why Indian Farmers Struggle to Transition — Contributed by Samrat Chowdhery
In this contributed article to 2Firsts, Mumbai-based journalist and harm reduction advocate Samrat Chowdhery examines India’s tobacco transition from the perspective of agriculture, supply chains and regulation. As noted by 2Firsts, India offers a relevant case for understanding how new nicotine technologies may affect not only consumption, trade and policy, but also tobacco farming.
Special Report
May.29
ITGA Americas Meeting Calls for Balanced Regulation as Tobacco Growers Warn of Pressure on Farms and Legal Supply Chains
ITGA Americas Meeting Calls for Balanced Regulation as Tobacco Growers Warn of Pressure on Farms and Legal Supply Chains
ITGA said tobacco grower organizations from five Americas countries called for stronger regional cooperation and balanced regulation, warning that restrictive policies could pressure farmers and legal supply chains. The article also provides data on major tobacco-producing countries in the Americas.
Special Report
Jun.02
Product | VELO Launches Tomorrowland Limited Edition 2026 as Festival IP Enters Nicotine Pouch Packaging
Product | VELO Launches Tomorrowland Limited Edition 2026 as Festival IP Enters Nicotine Pouch Packaging
BAT’s nicotine pouch brand VELO has introduced the Tomorrowland Limited Edition 2026. Public retail-channel information shows the product has appeared across multiple European online platforms, while Haypp UK has listed related SKUs with a “Coming soon” status. The packaging carries the wording “Official Tomorrowland Partner,” indicating that the collection is part of VELO’s official collaboration with the electronic music festival brand.
Jul.02
Sweden Becomes First EU Country to Reach Smoke-Free Status as Daily Smoking Falls to 4.8%
Sweden Becomes First EU Country to Reach Smoke-Free Status as Daily Smoking Falls to 4.8%
According to the latest CAN report and multiple media reports, Sweden’s daily smoking rate fell to 4.8% in 2025, below the commonly used 5% smoke-free threshold, making it the first EU country to reach that benchmark.
News
Jun.05
NielsenIQ and Goldman Sachs Data Show Smokeless Was the Only Growing Major U.S. Nicotine Category
NielsenIQ and Goldman Sachs Data Show Smokeless Was the Only Growing Major U.S. Nicotine Category
NielsenIQ and Goldman Sachs data show U.S. smokeless nicotine product sales rose more than 8% year over year in the 52 weeks ended May 30, making it the only major nicotine category to record growth.
Market
Jun.23