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.

Russian Duma Speaker Says Amendment Giving Regions Power to Ban Vape Sales Is Planned for Adoption in May
Russian Duma Speaker Says Amendment Giving Regions Power to Ban Vape Sales Is Planned for Adoption in May
Russian State Duma Speaker Vyacheslav Volodin said an amendment that would give Russian regions the power to ban vape sales is planned for adoption in May. Volodin said the decision concerns the health of citizens, especially children. He also said doctors have recorded a 30% increase in patients with respiratory diseases caused or aggravated by vape use, with adolescents and people under 35 most often affected.
Apr.24 by 2FIRSTS.ai
2Firsts Data|China Vape Exports Sink to Three-Year April Low After Tax Rebate Ends, Falling to $694 Million
2Firsts Data|China Vape Exports Sink to Three-Year April Low After Tax Rebate Ends, Falling to $694 Million
China’s e-cigarette export value declined to $694 million in April 2026, marking the lowest April level in the past three years. The data is notable because April was the first full month after China removed export VAT rebates for certain e-cigarette products. Compared with April 2025, export value fell 20.9%; compared with April 2024, it was down 22.3%. Month-on-month, exports dropped 23.2% from March 2026.
Special Report
May.23
Product | Vaporless Mode + Transparent Display Screen: Kanger Launches Subox Mix 50K in the U.S.
Product | Vaporless Mode + Transparent Display Screen: Kanger Launches Subox Mix 50K in the U.S.
E-cigarette brand Kanger has recently launched its new e-cigarette, the Subox Mix 50K, across multiple online channels in the United States. The product features a “vaporless mode” and a transparent digital display design, supporting switching between approximately 25K vapor puffs and 25K vaporless puffs, for a total of 50,000 puffs, while displaying battery level and mode status in the transparent pod section.
Apr.13 by 2FIRSTS.ai
Delaware Tax Proposal Targets Vapes, Nicotine Pouches and Other Tobacco Products
Delaware Tax Proposal Targets Vapes, Nicotine Pouches and Other Tobacco Products
Delaware’s latest tobacco tax increase bill cleared its first House committee hurdle on April 22. Backed by House Speaker Melissa Minor-Brown, the bill would raise the cigarette tax from $2.10 to $3.60 per pack and increase taxes on moist snuff, vapor products and other tobacco products.
Apr.24 by 2FIRSTS.ai
Kyrgyzstan Plans to Extend E-Cigarette Import Ban by Another Six Months
Kyrgyzstan Plans to Extend E-Cigarette Import Ban by Another Six Months
According to Kyrgyzstan’s Ministry of Economy, the government plans to extend the current ban on e-cigarette imports by another six months once the existing measure expires, with the new restriction set to take effect on July 10, 2026. The ban covers disposable e-cigarettes as well as nicotine-containing liquids for reusable systems.
Apr.17 by 2FIRSTS.ai
KT&G Q1 2026 Financial Results: Revenue at $1.156 Billion, E-Cigarettes to Launch Independent Overseas Expansion
KT&G Q1 2026 Financial Results: Revenue at $1.156 Billion, E-Cigarettes to Launch Independent Overseas Expansion
KT&G reports a 27.6% increase in Q1 operating profit, with traditional and new tobacco sectors driving growth.
May.07 by 2FIRSTS.ai