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Pharmacological Modulation of Lung Carcinogenesis in Smokers: Preclinical and Clinical Evidence
Silvio De Flora1, Gancho Ganchev2, Marietta Iltcheva2
1Department of Health Sciences, University of Genoa, 16132 Genoa, Italy.
Abstract:
Many drugs in common use possess pleiotropic properties that make them capable of interfering with carcinogenesis mechanisms. We discuss here the ability of pharmacological agents to mitigate the pulmonary carcinogenicity of mainstream cigarette smoke. The evaluated agents include anti-inflammatory drugs (budesonide, celecoxib, aspirin, naproxen, licofelone), antidiabetic drugs (metformin, pioglitazone), antineoplastic agents (lapatinib, bexarotene, vorinostat), and other drugs and supplements (phenethyl isothiocyanate, myo-inositol, N-acetylcysteine, ascorbic acid, berry extracts). These drugs have been evaluated in mouse models mimicking interventions either in current smokers or in ex-smokers, or in prenatal chemoprevention. They display a broad spectrum of activities by attenuating either smoke-induced preneoplastic lesions or benign tumors and/or malignant tumors. Together with epidemiological data, these findings provide useful information to predict the potential effects of pharmacological agents in smokers.
Insights
Many common drugs can interfere with cancer development. This study explores how various medications, including anti-inflammatories and antidiabetics, may reduce lung cancer risk from cigarette smoke in mouse models.
Area of Science:
- Pharmacology
- Oncology
- Toxicology
Background:
- Many drugs exhibit pleiotropic effects, influencing biological pathways.
- Cigarette smoke is a major cause of pulmonary carcinogenicity.
- Identifying agents to mitigate smoke-induced lung cancer is crucial.
Purpose of the Study:
- To evaluate the potential of commonly used drugs to counteract the pulmonary carcinogenicity of mainstream cigarette smoke.
- To assess these agents in various chemoprevention and intervention models.
Main Methods:
- Utilized mouse models to simulate interventions in current smokers, ex-smokers, and prenatal exposure.
- Tested a range of pharmacological agents including anti-inflammatory, antidiabetic, and antineoplastic drugs, alongside supplements.
- Assessed the attenuation of smoke-induced preneoplastic lesions, benign tumors, and malignant tumors.
Main Results:
- Several evaluated drugs demonstrated efficacy in reducing smoke-induced pulmonary lesions and tumors.
- The tested agents showed a broad spectrum of activity against different stages of carcinogenesis.
- Findings were corroborated with existing epidemiological data.
Conclusions:
- Pharmacological agents possess the potential to mitigate cigarette smoke-induced lung carcinogenicity.
- These findings provide a basis for predicting the effects of drug interventions in smokers.
- Further research can leverage these insights for novel chemopreventive strategies.
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