Histones News and Research

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First evidence links cancer to mutations in genes involved in DNA organization

St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project provides first evidence linking cancer to mutations in genes involved in DNA organization

30 Jan 2012

First details of genetic alterations that fuel early T-cell precursor ALL

Researchers have discovered that a subtype of leukemia characterized by a poor prognosis is fueled by mutations in pathways distinctly different from a seemingly similar leukemia associated with a much better outcome. The findings from the St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project (PCGP) highlight a possible new strategy for treating patients with this more aggressive cancer.

12 Jan 2012

DNA stays too tightly wound in brain cells of patients with schizophrenia

Scientists at The Scripps Research Institute have discovered that DNA stays too tightly wound in certain brain cells of schizophrenic subjects. The findings suggest that drugs already in development for other diseases might eventually offer hope as a treatment for schizophrenia and related conditions in the elderly.

28 Dec 2011

Vorinostat in addition to chemotherapy drugs improves remission rates in AML patients

Adding a drug that activates genes to frontline combination therapy for acute myeloid leukemia resulted in an 85 percent remission rate after initial treatment, researchers at The University of Texas MD Anderson Cancer Center reported at the 53rd Annual Meeting of the American Society of Hematology.

14 Dec 2011

Prefrontal cortex neurons from individuals with autism show changes in chromatin structures

Neurons in the prefrontal cortex of individuals with autism show changes at numerous sites across the genome, according to a study being published Online First by the Archives of General Psychiatry, one of the JAMA/Archives journals.

8 Nov 2011

Study on epigentics and cellular memory

How do fetal cells know what cell types to become? Why do cells in the adult body sometimes forget what they are and develop into cancer cells? These are some of the questions intensively investigated within the research field of epigenetics.

8 Nov 2011

Scientists uncover how methylation changes can influence blood stem cell's fate

Scientists at Cold Spring Harbor Laboratory (CSHL) and the University of Southern California (USC) have uncovered intriguing new evidence helping to explain one of the ways in which a stem cell's fate can be determined.

27 Sep 2011

Chromatin might have another life as direct signaling molecule

Chromatin - the intertwined histone proteins and DNA that make up chromosomes - constantly receives messages that pour in from a cell's intricate signaling networks: Turn that gene on. Stifle that one. But chromatin also talks back, scientists at The University of Texas MD Anderson Cancer Center report today in the journal Cell, issuing orders affecting a protein that has nothing to do with chromatin's central role in gene transcription - the first step in protein formation.

2 Sep 2011

Repeated cocaine use can increase individual's risk of mood disorders

It is well established that a mood disorder can increase an individual's risk for substance abuse, but there is also evidence that the converse is true; substance abuse can increase a person's vulnerability to stress-related illnesses.

25 Aug 2011

Cancer-causing fusion protein works by silencing tumor suppressor gene IL-2Rγ

Mariusz A. Wasik, MD, professor of Pathology and Laboratory Medicine, and Qian Zhang, MD, PhD, research assistant professor, both from the Perelman School of Medicine at the University of Pennsylvania, and their colleagues, found that a cancer-causing fusion protein works by silencing the tumor suppressor gene IL-2R common gamma-chain.

10 Aug 2011

Two studies on childhood leukemia

A difficult-to-treat form of childhood leukemia relies on changes in the structure of DNA - so-called epigenetic changes - to wreak genomic havoc within white blood cells, according to one of two studies conducted by a research team at Children's Hospital Boston and Dana-Farber Cancer Institute.

12 Jul 2011

Gestational high-fat diet programs woman's baby for future diabetes

A high-fat diet during pregnancy may program a woman's baby for future diabetes, even if she herself is not obese or diabetic, says a new University of Illinois study published in the Journal of Physiology.

26 May 2011

Exacerbate-reverse' approach can identify potential therapy for fatal childhood disease

Many genes that cause human diseases have parallel genes in other organisms, including yeast. Now Columbia University researchers have used an innovative yeast-based screening method to identify a possible treatment for the fatal childhood disease Niemann-Pick C.

19 Apr 2011

Researchers use computers to capture chemical signal structure that triggers metastatic cancer

In cancer and other pathological diseases, researchers are discovering that packaging is important: specifically, how DNA - about two meters long when unwound and stretched - coils up and compacts neatly inside the nucleus of a cell.

15 Feb 2011

Acetylation complex fits like a halo over a histone

To understand the emerging science of epigenetics-a field that describes how genes may be regulated without altering the underlying DNA itself-scientists are deciphering the many ways in which enzymes act on the proteins surrounding DNA within cells.

21 Jan 2011

'Histone code' needs to be used with caution

The function of histones -- the proteins that enable yards of DNA to be crammed into a single cell -- depends on a number of chemical tags adorning their exterior. This sophisticated chemical syntax for packaging DNA into tight little coils or unraveling it again -- called the "histone code" -- is the latest frontier for researchers bent on understanding how genetics encodes life.

17 Dec 2010

Scientists decipher genetic code for pediatric medulloblastoma

Scientists at the Johns Hopkins Kimmel Cancer Center have deciphered the genetic code for medulloblastoma, the most common pediatric brain cancer and a leading killer of children with cancer.

16 Dec 2010

New findings says TRIM24 protein plays active role in breast cancer formation

The recently identified TRIM24 protein plays an active role in pushing normal breast cells into rapid cell proliferation and, potentially, into breast cancer.

16 Dec 2010

HDAC inhibitors may be used to fight against skin cancers

In a study published in the journal Developmental Cell, Sarah Millar PhD, professor of Dermatology and Cell & Developmental Biology at the University of Pennsylvania School of Medicine, and colleagues demonstrate that a pair of enzymes called HDACs are critical to the proper formation of mammalian skin.

7 Dec 2010

Mother’s high-fat diet alters fetal genes that regulate circadian rhythm: Study

The link between sleeping and obesity is drawn tighter as a new research published online in the FASEB Journal study shows that what your mother ate when she was pregnant may make you obese or overweight by altering the function of genes (epigenetic changes) that regulate circadian rhythm.

23 Nov 2010