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Epigenetic Regulation

Epigenetic 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...

Epigenetic Regulation

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.

Cancer

Cancer

Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.

Induced Pluripotent Stem Cells

Induced Pluripotent Stem Cells

Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic cells are...

Adaptive Mechanisms in Cancer Cells

Adaptive 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,...

Abnormal Proliferation

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...

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Related Experiment Video

Updated: May 16, 2026

Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors

Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors

Published on: August 5, 2022

DNA methylation and cancer.

Gopinathan Gokul¹, Sanjeev Khosla

¹Laboratory of Mammalian Genetics, CDFD, Hyderabad, 500001, India.

Sub-Cellular Biochemistry

|November 15, 2012

Summary

Cancer epigenetics, including DNA methylation, plays a crucial role in neoplasia. Aberrant epigenetic modifications are implicated in early cancer stages, influencing gene expression and cancer progression.

Area of Science:

Oncology
Molecular Biology
Epigenetics

Background:

Cancer is traditionally viewed as a genetic disease, characterized by gene mutations and chromosomal abnormalities.
Epigenetic modifications, particularly DNA methylation, are increasingly recognized as significant contributors to cancer complexity and diversity.
The precise role and timing of epigenetic events during cancer progression remain areas of active investigation.

Purpose of the Study:

To explore the contribution of cancer epigenetics to understanding cancer complexity.
To investigate the role of DNA methylation in gene expression regulation within cancer.
To examine the correlation between DNA methylation/demethylation enzymes and cancer development.

Main Methods:

Review of existing literature on cancer epigenetics and DNA methylation.

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Enhanced Reduced Representation Bisulfite Sequencing for Assessment of DNA Methylation at Base Pair Resolution

Enhanced Reduced Representation Bisulfite Sequencing for Assessment of DNA Methylation at Base Pair Resolution

Published on: February 24, 2015

Genome-Wide Analysis of DNA Methylation in Gastrointestinal Cancer

Genome-Wide Analysis of DNA Methylation in Gastrointestinal Cancer

Published on: September 18, 2020

Related Experiment Videos

Last Updated: May 16, 2026

Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors

Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors

Published on: August 5, 2022

Enhanced Reduced Representation Bisulfite Sequencing for Assessment of DNA Methylation at Base Pair Resolution

Enhanced Reduced Representation Bisulfite Sequencing for Assessment of DNA Methylation at Base Pair Resolution

Published on: February 24, 2015

Genome-Wide Analysis of DNA Methylation in Gastrointestinal Cancer

Genome-Wide Analysis of DNA Methylation in Gastrointestinal Cancer

Published on: September 18, 2020

Analysis of studies investigating promoter DNA methylation patterns in cancer.

Exploration of the functional consequences of aberrant DNA methylation (hypomethylation and hypermethylation) on gene expression.

Main Results:

Aberrant epigenetic modifications, especially DNA methylation changes, are integral to cancer development.
Hypomethylation of oncogenes leads to their increased expression, while hypermethylation of tumor suppressor genes causes their silencing.
Epigenetic events are implicated in the early stages of cancer, influencing disease progression.

Conclusions:

Cancer epigenetics provides critical insights into the heterogeneity of neoplastic diseases.
DNA methylation is a key epigenetic mechanism driving oncogenesis through altered gene expression.
Understanding the interplay between DNA methylation enzymes and cancer is essential for future therapeutic strategies.