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.

JTI Liggett Puts U.S. Value Cigarette Brands in Spotlight at 2026 NACS Show
JTI Liggett Puts U.S. Value Cigarette Brands in Spotlight at 2026 NACS Show
At the 2026 NACS Show in Las Vegas, JTI Liggett highlighted its value-priced cigarette portfolio, including LD and Montego, following JT Group's acquisition of Vector Group. The company's U.S. business reported market share gains, with LD sales volume rising 32.6% in the first half of 2026. Meanwhile, Ploom was displayed separately at Altria's booth under an existing partnership. JTI Liggett booth staff told 2Firsts that the company had not yet launched nicotine pouch products in the United States.
EXPO
Oct.09
Arizona Turns to a 50% Retail Vape Tax as Tobacco Tax Revenue Falls 47% From 2008
Arizona Turns to a 50% Retail Vape Tax as Tobacco Tax Revenue Falls 47% From 2008
Arizona's First Things First is pushing for an excise tax equal to 50% of the retail price of vaping products, estimating that the measure could generate about $100 million annually. The agency says its tobacco-tax revenue has fallen 47% from 2008 levels. Arizona has attempted to broaden its nicotine tax base in each of the past two years: a 2025 bill proposed a 50% wholesale-price tax, while a 2026 measure shifted to a 50% retail-price tax covering alternative nicotine products and vapor products. Separately, the state enacted HB 4001 this year to establish a new licensing and sales framework for alternative nicotine products.
Sep.21
2Firsts On-Site | PMI Brings IQOS, ZYN, VEEV and Marlboro Together at Its “Boulevard” at InterTabac 2026
2Firsts On-Site | PMI Brings IQOS, ZYN, VEEV and Marlboro Together at Its “Boulevard” at InterTabac 2026
At InterTabac 2026 in Dortmund, PMI is presenting multiple brands and products along “The PMI Boulevard,” including IQOS, ZYN, VEEV and Marlboro. On-site images captured by 2Firsts show dedicated spaces including the IQOS Boutique, ZYN Café, PMI Gallery and Marlboro Office
Market
Sep.16 by 2Firsts Perspectives
On-Site Report | CTP Details PMTA Backlog, 180-Day Review Goal and sPMTA Process
On-Site Report | CTP Details PMTA Backlog, 180-Day Review Goal and sPMTA Process
FDA’s Center for Tobacco Products detailed new PMTA review data and process changes at the 2026 FDLI conference. Pending PMTAs fell from about 450,000 at the start of 2025 to 135,000 by September 2026. CTP also discussed its 180-day review goal, current sPMTA pilot, alternate-supplier planning, more than 50,300 pending SE reports, and lessons from the nicotine pouch pilot already being applied to ENDS review.
Regulations
Oct.07
Product | JTI Launches Ploom AURA Teal Electric Pop in South Korea, Its First Dual-Color Edition
Product | JTI Launches Ploom AURA Teal Electric Pop in South Korea, Its First Dual-Color Edition
JTI Korea launched the Ploom AURA Teal Electric Pop limited edition in South Korea on September 1, 2026, marking the first dual-color design in the Ploom AURA range. The device combines a dark green body with teal accents and is accompanied by matching Front Panel, Back Cover and Pocket Bag accessories. The standalone device is priced at KRW 29,000, with three additional device-and-accessory bundles available. The release continues JTI Korea's use of limited colorways and interchangeable accessories to expand the Ploom AURA portfolio without introducing a new hardware platform.
Sep.03
JUUL2 Sued Within a Week of FDA Authorization as AJ Marketing Alleges Infringement of Programmable Vape Patent
JUUL2 Sued Within a Week of FDA Authorization as AJ Marketing Alleges Infringement of Programmable Vape Patent
Less than a week after JUUL2 received U.S. FDA marketing authorization on August 28, 2026, JUUL Labs was sued for patent infringement in federal court in Delaware. AJ Marketing LLC filed the complaint on September 3, alleging that both JUUL 1 and JUUL2 infringe U.S. Patent No. 8,851,068 B2. The patent covers aspects of programmable electronic vaporization devices, including controls over dose delivery, usage frequency and operating parameters. The plaintiff is seeking reasonable royalties and ongoing royalties tied to the remaining life of the patent. JUUL has not yet publicly responded to the case.
Sep.10