DNA Methylation News and Research

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DNA methylation is a type of chemical modification of DNA that can be inherited and subsequently removed without changing the original DNA sequence. As such, it is part of the epigenetic code and is also the most well characterized epigenetic mechanism.

New gene-silencing pathway found in plants

Biologists at Washington University in St. Louis have made major headway in explaining a mechanism by which plant cells silence potentially harmful genes.

17 Nov 2008

"Smothered" genes combine with mutations to yield poor out come in cancer patients

Johns Hopkins Kimmel Cancer Center researchers have identified a set of genes in breast and colon cancers with a deadly combination of traditional mutations and "smothered" gene activity that may result in poor outcomes for patients.

15 Jul 2008

Epigenetic changes occur over a person's lifetime

Researchers at Johns Hopkins have found that epigenetic marks on DNA-chemical marks other than the DNA sequence-do indeed change over a person's lifetime, and that the degree of change is similar among family members.

24 Jun 2008

Addicted cells provide early cancer diagnosis

Scientists at the Institute of Food Research have detected subtle changes that may make the bowel more vulnerable to the development of tumours.

10 Jun 2008

Suicide victims who were abused have genetic brain difference

Canadian researchers have found that childhood abuse victims who later commit suicide have marked genetic differences in their brains.

7 May 2008

Epigenetic research uncovers new targets for modification enzymes

Enzymes regulating genetic expression can be just as important as the genome itself, increasing evidence shows.

27 Apr 2008

Computational approaches to the role of epigenetic marks in transcription regulation

A closer alliance between computational and experimental researchers is needed to make progress towards one of biology's most challenging goals, understanding how epigenetic marks contribute to regulation of gene expression.

11 Apr 2008

Gold nanoparticle-based colorimetric assay for the direct detection of cancerous cells

Early detection of tumors is one of the Holy Grails of cancer research, an achievement that would greatly improve cancer therapy and prognosis. Two new reports describe different but promising approaches to solving this problem.

3 Mar 2008

Novel mechanism found that may boost impaired function of leukemia protein

A new study led by researchers at Memorial Sloan-Kettering Cancer Center (MSKCC) reports on a novel mechanism that can enhance the function of a protein that is frequently impaired in patients with acute forms of leukemia.

3 Mar 2008

New clues about how cancer cells grow

Scientists in Switzerland are uncovering new clues about how cancer cells grow - and how they can be killed - by studying stem cells, 'blank' cells that have the potential to develop into fully mature or 'differentiated' cells and other scientists in UK have made a breakthrough in understanding the cause of the most common form of childhood cancer, acute lymphoblastic leukaemia (ALL).

14 Feb 2008

Male infertility - epigenetics may be the underlying cause

Researchers at the University of Southern California (USC) suggest epigenetics, or the way DNA is processed and expressed, may be the underlying cause for male infertility.

13 Dec 2007

DNA methylation shown to promote development of colon tumors

Damaged or defective genes have long been known to be the cause of some cancers.

2 Dec 2007

Genetic contributions to human brain morphology and intelligence

While showing an impressive growth prenatally, the human brain is not completed at birth.

17 Oct 2007

JAK genes and cancer

Cancer-causing genes can work in more powerful and sneaky ways than have been realized.

18 Sep 2007

New clue to mechanisms of gene signaling and regulation

Scientists have discovered a pattern in the DNA sequence of the mouse genome that may play a fundamental part in the way DNA molecules regulate gene expression.

24 Aug 2007

Protein IKKa protects checkpoint gene from chemical shutdown

A protein that is largely absent in one type of skin cancer protects an important gene in a cell's defense against harmful mutations from being silenced, researchers at The University of Texas M. D. Anderson Cancer Center report in the July 20 edition of Molecular Cell.

20 Jul 2007

Sigma-Aldrich launches Imprint DNA Modification kit

Sigma-Aldrich has announced the launch of the Imprint DNA Modification kit.

11 Jul 2007

The unexpected connection of two gene regulation mechanisms points to new ways for the fight against leukemia

When the activity of individual genes it is longer required, there are two main mechanisms responsible for the “switching off”, mainly DNA methylation and the Polycomb protein complex. Sometimes, these mechanisms lose their efficiency and some of the genes that should be "switched off" remain active.

16 Jun 2007

Reprogrammed fibroblasts resemble embryonic stem cells

Stem cell biology takes another exciting leap forward as scientists report that normal tissue cells can be reprogrammed to exhibit many of the properties that are characteristic of embryonic stem cells, including the ability to give rise to multiple cell types and contribute to the germline.

8 Jun 2007

Discovery of inherited gene mutation for leukemia

Researchers have discovered the first inherited gene mutation that increases a person's risk for chronic lymphocytic leukemia (CLL), one of the most common forms of the disease.

1 Jun 2007