carcinogenesis

pathology

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June 22, 2026

Quick Summary

Carcinogenesis is the process by which cancer is produced. It involves abnormal cell growth and a malfunction in the mechanisms controlling cell division and maturation. This transition from normal to cancerous cells is an evolutionary process driven by genetic changes.12

Carcinogens, agents that can cause cancer, interact with DNA in cells, interfering with normal function and leading to uncontrolled cell division and resistance to programmed cell death. These agents can be chemical, physical, or viral. For example, chemicals like polycyclic aromatic hydrocarbons found in tobacco smoke, or physical agents like UV radiation, can damage DNA.345

The development of cancer often involves precancerous stages, where abnormal cellular changes occur. These changes can accumulate over time, leading to the characteristics of cancer cells, such as limitless reproduction and the ability to invade and spread to distant tissues.24

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biological development
Normal and abnormal development
…is nearly always retrogressive, is carcinogenesis, the production of tumours. Carcinogenesis involves a change in the developmental behaviour of a group of cells. Initially, it often involves a loss of some of the functional and structural characteristics that previously appeared in the cells. It is commonly followed, however, by the…
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…is nearly always retrogressive, is carcinogenesis, the production of tumours. Carcinogenesis involves a change in the developmental behaviour of a group of cells. Initially, it often involves a loss of some of the functional and structural characteristics that previously appeared in the cells. It is commonly followed, however, by the…
Read More

poison
Carcinogenesis
Carcinogens are chemicals that can produce tumors, abnormal tissue growths caused by a loss of control in cell replication. Most tumors are solid masses (e.g., lung cancer), but some do not occur as tissue swellings (e.g., leukemia).
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Carcinogens are chemicals that can produce tumors, abnormal tissue growths caused by a loss of control in cell replication. Most tumors are solid masses (e.g., lung cancer), but some do not occur as tissue swellings (e.g., leukemia).
Read More