Related Experiment Video
Updated: May 31, 2026

06:12
Using Nicotine in a Silica-Exposed Mouse Model to Promote Lung Epithelial-Mesenchymal Transition
Published on: March 3, 2023
Nicotine has implications in different tumors types. Expert's eye making a literature analysis
1Department of Radiation Therapy-B, Saint Savvas Anticancer Institute, Athens, Greece. gkoyokorakis@yahoo.gr
Summary
Smoking tobacco, primarily through cigarettes, exposes individuals to nicotine and other harmful chemicals. This review examines the links between tobacco use, nicotine, and the development of oral, lung, and urinary tract cancers.
Area of Science:
- Oncology
- Toxicology
- Public Health
Background:
- Nicotine, the primary alkaloid in tobacco, mediates the addictive and pharmacological effects of smoking.
- Smokers exhibit elevated serum levels of cadmium and lead, contributing to glomerular dysfunction.
- Cigarette smoke contains reagents that directly damage oral epithelial cells, potentially leading to malignant transformation.
Purpose of the Study:
- To review the implications of nicotine, smoking, smoke extracts, and tobacco constituents on various cancers.
- To highlight the association between tobacco use and the incidence of oral, lung, and urinary tract cancers.
Main Methods:
- This study is a review of existing literature.
- The review synthesizes findings on the carcinogenic effects of tobacco constituents.
Main Results:
- Tobacco use is the leading cause of lung cancer, responsible for 90% of male and 79% of female cases.
- Smoking is estimated to cause 90% of lung cancer deaths.
- Cigarette smoke components directly impact oral epithelial cells, initiating a process that can lead to cancer.
Conclusions:
- Nicotine and other tobacco constituents play a significant role in the development of oral, lung, and urinary tract cancers.
- The evidence strongly supports the causal link between smoking and lung cancer.
- Understanding these mechanisms is crucial for public health interventions aimed at reducing cancer incidence.
Related Concept Videos
Drugs Acting on Autonomic Ganglia: Stimulants
Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating sympathetic or...
Cancer Therapies
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
Stimulants
Stimulants are substances that enhance neural activity and elevate dopamine levels in the brain, leading to their highly addictive nature. These drugs include cocaine, amphetamines, MDMA, caffeine, and nicotine, each with distinct mechanisms of action and varied health implications.
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
The Tumor Microenvironment
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
Statistical Methods for Analyzing Epidemiological Data
Epidemiological data primarily involves information on specific populations' occurrence, distribution, and determinants of health and diseases. This data is crucial for understanding disease patterns and impacts, aiding public health decision-making and disease prevention strategies. The analysis of epidemiological data employs various statistical methods to interpret health-related data effectively. Here are some commonly used methods:
Mouse Models of Cancer Study
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
