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Related Concept Videos

Mutagenicity and Carcinogenicity01:25

Mutagenicity and Carcinogenicity

Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Cancer-Critical Genes I: Proto-oncogenes01:33

Cancer-Critical Genes I: Proto-oncogenes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes I: Proto-oncogenes01:33

Cancer-Critical Genes I: Proto-oncogenes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Skin Cancer01:30

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...

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Updated: May 26, 2026

Chemical-Induced Skin Carcinogenesis Model Using Dimethylbenz[a]Anthracene and 12-O-Tetradecanoyl Phorbol-13-Acetate (DMBA-TPA)
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Chemical-Induced Skin Carcinogenesis Model Using Dimethylbenz[a]Anthracene and 12-O-Tetradecanoyl Phorbol-13-Acetate (DMBA-TPA)

Published on: December 19, 2019

[Carcinogenesis].

María Teresa Martín de Civetta1, Julio Domingo Civetta

  • 1Departamento de Oncología, Hospital Dr JR Vidal, Corrientes, Argentina. mtmcivetta@yahoo.com

Salud Publica De Mexico
|January 6, 2012
PubMed
Summary

Cancer arises from genetic mutations that alter cell function, leading to uncontrolled growth. Understanding these mutations and the stages of carcinogenesis, including metastasis, is crucial for developing effective cancer treatments.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Context:

  • Cell division is regulated by complex stimulatory and inhibitory systems.
  • Cancer originates from a single cell (monoclonal) undergoing genetic mutations.
  • Mutations alter gene products, leading to neoplastic cell transformation.

Purpose:

  • To review current literature on carcinogenesis.
  • To explain the genetic and epigenetic mechanisms underlying cancer development.
  • To detail the stages of carcinogenesis, including initiation, promotion, and malignant progression.

Summary:

  • Cancer development involves genetic mutations, either hereditary or sporadic, affecting cellular control mechanisms.
  • Carcinogenesis progresses through initiation, promotion, and malignant transformation, characterized by tissue invasion.

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Deficient Pms2, ERCC1, Ku86, CcOI in Field Defects During Progression to Colon Cancer
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Deficient Pms2, ERCC1, Ku86, CcOI in Field Defects During Progression to Colon Cancer

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Deficient Pms2, ERCC1, Ku86, CcOI in Field Defects During Progression to Colon Cancer
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Deficient Pms2, ERCC1, Ku86, CcOI in Field Defects During Progression to Colon Cancer

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  • Metastasis requires angiogenesis, matrix degradation, cell migration, immune evasion, and colonization.

    • Impact:

    • Provides foundational knowledge for understanding cancer biology.
    • Highlights the multi-step nature of cancer development and progression.
    • Establishes a basis for further research into targeted cancer therapies.