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.

Charlie’s Says 30 PACHA Vape SKUs Tentatively Identified for FDA’s Non-Priority Enforcement Public List
Charlie’s Says 30 PACHA Vape SKUs Tentatively Identified for FDA’s Non-Priority Enforcement Public List
Charlie’s Holdings said the U.S. Food and Drug Administration notified the company on June 23, 2026, that 30 PACHA vape SKUs with submitted PMTAs had been tentatively identified for inclusion on a planned public-facing FDA webpage. Under enforcement guidance issued by FDA in May, the webpage is intended to identify certain unauthorized products for which the agency generally does not intend to prioritize enforcement of premarket authorization requirements. Charlie’s disclosed the development alongside second-quarter revenue of $3.8 million, up 116% year over year.
Aug.25
From Product Innovation to Integrated Solutions: NEXTECH Expands Its Global Heated Tobacco Solutions
From Product Innovation to Integrated Solutions: NEXTECH Expands Its Global Heated Tobacco Solutions
NEXTECH launched its NEXE Pro circumferential-heating tobacco stick globally at InterTabac 2026, as the company expands from product innovation into broader heated tobacco solutions. Amid intensifying competition across global HTP markets, NEXTECH is strengthening its R&D, manufacturing and pre-launch support capabilities to serve different types of business customers.
Industry Insight
Sep.15
Product | BAT Expands VELO Peach Ice Medium to FamilyMart Stores Nationwide in Japan
Product | BAT Expands VELO Peach Ice Medium to FamilyMart Stores Nationwide in Japan
British American Tobacco Japan (BAT Japan) expanded VELO Peach Ice Medium to FamilyMart stores nationwide in Japan from September 7, 2026. The oral tobacco product first launched on July 6 and had previously been sold through VELO's official online store, glo Store Ginza and tobacco retailers. It combines peach flavor with menthol cooling at a Medium strength level and is priced at JPY 360. Japanese tobacco retailers list 15 pouches per pack. The move adds the new SKU to an existing nationwide FamilyMart distribution network for VELO rather than marking the brand's first entry into the convenience-store chain.
Sep.15
Elf Bar Vape Explosion and Amputation Claim Spurs Coverage Suit, U.S. Insurer MUSIC Seeks Ruling It Owes No Duty to Defend or Indemnify Distributor i5
Elf Bar Vape Explosion and Amputation Claim Spurs Coverage Suit, U.S. Insurer MUSIC Seeks Ruling It Owes No Duty to Defend or Indemnify Distributor i5
Mesa Underwriters Specialty Insurance Company has asked a federal court in Washington to declare that it has no duty to defend or indemnify vape distributor i5 Distribution in a product liability case involving an Elf Bar BC5000. The plaintiff alleges that the disposable vape caught fire and exploded in his pocket, causing severe burns and ultimately requiring an above-the-knee amputation of his left leg. MUSIC is relying on a tobacco, nicotine or nicotine replacement products exclusion and a premises limitation endorsement. The court has not ruled on the coverage dispute.
News
Sep.10
Philippines Weighs Unified Vape Tax as Lawmakers Back Risk-Based Rates and Government Seeks to Fill ₱66 Billion Revenue Gap
Philippines Weighs Unified Vape Tax as Lawmakers Back Risk-Based Rates and Government Seeks to Fill ₱66 Billion Revenue Gap
Philippine lawmakers are considering an overhaul of the country's vape excise-tax regime to eliminate the wide gap between taxes on nicotine salt and freebase nicotine liquids and reduce incentives for misdeclaration. House Bill 5364, filed by Rep. Rufus Rodriguez and Rep. Maximo Rodriguez Jr., would impose a unified ₱10-per-milliliter tax on vapor products, with 5% annual increases beginning in 2027. Rodriguez says the proposal could generate an average ₱6 billion in annual collections from 2027 through 2030. The debate comes as the Philippine government considers tobacco, vape and other health-tax reforms to help offset around ₱66 billion in revenue expected to be forgone under a proposed tax-relief package.
Aug.18
Gallery | InterTabac 2026 Opens as VAPORESSO, SKE, GREENTANK, GEEK BAR and Other Brands Take the Floor
Gallery | InterTabac 2026 Opens as VAPORESSO, SKE, GREENTANK, GEEK BAR and Other Brands Take the Floor
InterTabac 2026 opened in Dortmund, Germany, on September 15 alongside NUBIZ and InterSupply. According to the latest figures released by the organizer, the three trade shows bring together around 750 exhibitors from 64 countries. On site, 2Firsts observed vaping and related brands including VAPORESSO, DOJO, SKE, GREENTANK, GEEK BAR, HQD and ELUX.
Special Report
Sep.15