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Updated: Jul 8, 2026
21:24
Methylated DNA Immunoprecipitation
Published on: January 2, 2009
[Epigenetics of cancer]
Victoria Gonzalo1, Sergi Castellví-Bel, Francesc Balaguer
1Servicio de Gastroenterología, Institut de Malalties Digestives i Metabòliques, Hospital Clínic, CIBERehd, Barcelona, España.
Gastroenterologia Y Hepatologia
|January 26, 2008
Summary
Cancer pathogenesis involves genetic and epigenetic changes, with methylation being a key epigenomic mechanism. DNA methylation alterations, like hypomethylation and hypermethylation, significantly impact gene expression and cancer development.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Context:
- Cancer development involves complex genetic and epigenetic alterations.
- Epigenetic modifications regulate gene expression without changing the DNA sequence.
Purpose:
- To elucidate the role of epigenetic mechanisms in cancer pathogenesis.
- To highlight DNA methylation as a primary epigenomic driver in cancer.
Summary:
- Epigenetic alterations, including DNA methylation (hypomethylation and promoter hypermethylation), profoundly affect gene transcription, gene activation, and chromosomal stability.
- These epigenetic changes are crucial in initiating and progressing various cancers.
- DNA methylation is identified as the principal epigenomic mechanism implicated in cancer development.
Impact:
- Understanding epigenetic mechanisms in cancer can lead to novel diagnostic and therapeutic strategies.
- Highlights the significance of DNA methylation in cancer research and clinical applications.
Related Concept Videos
01:37Epigenetic Regulation
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
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01:46Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
01:46Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
02:59Cancer 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.
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02:59Cancer 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.
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02:53Adaptive Mechanisms in Cancer Cells
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
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