Tobacco smoke-induced squamous cell lung cancer (SCC) develops from endobronchial dysplastic lesions that progress to invasive disease. A reproducible murine model recapitulating histologic progression observed in current and former smokers will advance testing of new preventive and therapeutic strategies. Previous studies show that prolonged topical application of N-nitroso-tris-chloroethylurea (NTCU) generates a range of airway lesions in sensitive mice similar to those induced by chronic tobacco smoke exposure in humans. To improve the current NTCU model and better align it with human disease, NTCU was applied to mice twice weekly for 4-5 weeks followed by a recovery period before cigarette smoke (CS) or ambient air (control) exposure for an additional 3-6 weeks. Despite the short time course, the addition of CS led to significantly more premalignant lesions (PML; 2.6 vs. 0.5; < 0.02) and resulted in fewer alveolar macrophages (52,000 macrophages/mL BALF vs. 68,000; < 0.05) compared with control mice. This improved NTCU + CS model is the first murine SCC model to incorporate tobacco smoke and is more amenable to preclinical studies because of the increased number of PML, decreased number of mice required, and reduced time needed for PML development.
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http://dx.doi.org/10.1158/1940-6207.CAPR-20-0332 | DOI Listing |
JAMA Netw Open
January 2025
Division of Intramural Research, National Institute on Minority Health and Health Disparities, Bethesda, Maryland.
Importance: Cigarette companies have been introducing synthetic cooling agent menthol-mimicking cigarettes into the US marketplace as menthol cigarette bans are implemented. These cigarettes may reduce the public health benefits of menthol cigarette bans.
Objective: To examine the epidemiology of the use of synthetic cooling agent menthol-mimicking cigarettes among adults in the US.
Heliyon
January 2025
Department of Behavioural Science and Health, University College London, UK.
Objective And Rationale: This study assessed support for novel tobacco compared with alcohol control policies among adults in Great Britain in 2021-2023. Objectives were to assess 1) overall level of support for tobacco compared to alcohol control policies; 2) level of support for tobacco compared to alcohol control policies among people who smoke tobacco or who consume alcohol at increasing and higher risk levels, or who do both; 3) level of support for tobacco compared to alcohol control policies among different sociodemographic groups?
Methods: Data were collected in September/October 2021-2023 in a monthly population-based survey on smoking and drinking behaviour of adults across Great Britain (N = 6311), weighted to match the overall population. Outcome measure was level of support for each seven tobacco and alcohol control policies.
Prev Med Rep
January 2025
Addiction Center, Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA.
Background: Smoking is the leading cause of preventable death in the United States. We interviewed Tobacco Cessation Champions, multi-sector decision makers, across the state of Michigan to assess and identify barriers and facilitators of smoking cessation and the current smoking cessation landscape.
Methods: Twenty Tobacco Cessation Champion interviews ( = 20) were completed with multi-sector decision makers to assess implementation barriers and facilitators from May 2022 to September 2023.
BMJ Open
December 2024
Department of Biomedical Informatics, University of Utah, Salt Lake City, Utah, USA.
Introduction: Early lung cancer screening (LCS) through low-dose CT (LDCT) is crucial but underused due to various barriers, including incomplete or inaccurate patient smoking data in the electronic health record and limited time for shared decision-making. The objective of this trial is to investigate a patient-centred intervention, MyLungHealth, delivered through the patient portal. The intervention is designed to improve LCS rates through increased identification of eligible patients and informed decision-making.
View Article and Find Full Text PDFBMJ Open
December 2024
Department of Public Health and Clinical Medicine, Piteå Research Unit, Umeå University, Umeå, Sweden
Objectives: To examine the 36-year trends in tobacco use in northern Sweden.
Design And Outcome Measure: Cross-sectional analysis of the eight population-based surveys that constitute the northern Sweden MONICA study (1986, 1990, 1994, 1999, 2004, 2009, 2014 and 2022). Cigarette smoking and snus use were self-reported via questionnaires, and age-adjusted percentages of cigarette smoking (including occasional use) and snus use were calculated via logit models.
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