Related Experiment Video
Updated: Jun 12, 2026

06:53
Cell Population Analyses During Skin Carcinogenesis
Published on: August 21, 2013
Genetics of basal cell carcinoma
Sally E de Zwaan1, Nikolas K Haass
1Department of Dermatology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.
The Australasian Journal of Dermatology
|June 16, 2010
Summary
Basal cell carcinoma (BCC) genetics are advancing, revealing hedgehog pathway involvement in its development. This knowledge drives new non-surgical treatments for this common skin cancer.
Area of Science:
- Oncology
- Genetics
- Dermatology
Background:
- Basal cell carcinoma (BCC) is the most common human malignancy, with Australia having the highest global incidence.
- Recent genetic research has significantly advanced the understanding of BCC development.
- Genetic mutations, particularly in the patched 1 gene (PTCH1), are linked to BCC predisposition, as seen in Gorlin syndrome.
Purpose of the Study:
- To explore the molecular biology of the hedgehog signaling pathway in relation to basal cell carcinoma.
- To review mouse models of BCC based on hedgehog pathway dysregulation.
- To discuss emerging non-surgical treatment strategies for BCC informed by genetic and molecular insights.
Main Methods:
- Review of current literature on the genetics and molecular biology of basal cell carcinoma.
- Discussion of the hedgehog signaling pathway and its role in carcinogenesis.
- Exploration of genetic mutations (PTCH1, P53) and other relevant genes (melanocortin-1 receptor, glutathione-S-transferases, DNA repair genes, CDKN2A, Brahma, connexins).
Main Results:
- The hedgehog signaling pathway is crucial in the carcinogenesis of sporadic basal cell carcinoma.
- Mouse models utilizing the hedgehog pathway provide insights into BCC development.
- Evidence suggests familial aggregation, indicating a potential genetic predisposition to BCC.
Conclusions:
- Understanding the genetic underpinnings of basal cell carcinoma, especially the hedgehog pathway, is critical for developing targeted therapies.
- Advances in molecular biology are paving the way for novel, non-surgical treatment options for BCC.
- Genetic predisposition likely plays a role in the development of this prevalent skin cancer.
More Related Videos
Related Concept Videos
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...
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Cancers Originate from Somatic Mutations in a Single Cell
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
Cancers Originate from Somatic Mutations in a Single Cell
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
The Retinoblastoma Gene
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
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...
Some...
Cancer-Critical Genes II: Tumor Suppressor Genes
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...
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...

