Chromosome 4 News and Research

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Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 4, one copy inherited from each parent, form one of the pairs. Chromosome 4 spans more than 191 million DNA building blocks (base pairs) and represents more than 6 percent of the total DNA in cells.

Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 4 likely contains between 1,300 and 1,600 genes.

Genes on chromosome 4 are among the estimated 20,000 to 25,000 total genes in the human genome.

Scientists receive $1.2M grants to explore development of AD in individuals with Down syndrome

Donna Wilcock of the University of Kentucky Sanders-Brown Center on Aging is the lead investigator on a recently-funded project exploring the links between Alzheimer's disease and Down Syndrome. Elizabeth Head, also of Sanders-Brown Center on Aging, is a co-investigator on the project.

10 Nov 2013

New computational method quickly orders DNA sequencing information along entire chromosomes

A new computational method has been shown to quickly assign, order and orient DNA sequencing information along entire chromosomes. The method may help overcome a major obstacle that has delayed progress in designing rapid, low-cost -- but still accurate -- ways to assemble genomes from scratch.

8 Nov 2013

Research findings could offer new insights into how defective cells can multiply in diseases

A rudimentary form of life that is found in some of the harshest environments on earth is able to sidestep normal replication processes and reproduce by the back door, researchers at The University of Nottingham have found.

5 Nov 2013

ARIAD temporarily suspends commercial distribution of Iclusig drug in US

ARIAD Pharmaceuticals, Inc. today announced that it is temporarily suspending the marketing and commercial distribution of Iclusig® (ponatinib), a treatment for patients with resistant or intolerant chronic myeloid leukemia (CML) and Philadelphia-chromosome positive acute lymphoblastic leukemia (Ph+ ALL), in the United States, while it continues to negotiate updates to the U.S. prescribing information for Iclusig and implementation of a risk mitigation strategy.

31 Oct 2013

Interaction between fat cells and bacterial toxins can lead to chronic inflammation

Making fat cells immortal might seem like a bad idea to most people, but for a team of University of Iowa scientists it was the ideal way to study how the interaction between bacteria and fat cells might contribute to diabetes.

31 Oct 2013

‘Distinct’ bipolar pathways revealed

A genetic analysis reported in Nature suggests two mechanisms that could lead to bipolar disorder.

25 Oct 2013

Obsessive-compulsive disorder and Tourette syndrome are highly heritable

An international research consortium led by investigators at Massachusetts General Hospital (MGH) and the University of Chicago has answered several questions about the genetic background of obsessive-compulsive disorder and Tourette syndrome, providing the first direct confirmation that both are highly heritable and also revealing major differences between the underlying genetic makeup of the disorders.

25 Oct 2013

Gene-diet interaction may shed light on increased risk of colorectal cancer linked with meat consumption

A newly discovered potential gene-diet interaction for colorectal cancer was reported today (Thursday, Oct. 24) at the American Society of Human Genetics 2013 meeting in Boston.

25 Oct 2013

Study identifies gene that raises risk for colorectal cancer from eating red or processed meat

A common genetic variant that affects 1 in 3 people significantly increases the risk of colorectal cancer from the consumption of red meat and processed meat, according to a study presented today at the annual American Society of Human Genetics 2013 meeting, the largest gathering of human geneticists in the world.

25 Oct 2013

Scientist receives NIH New Innovator Award to design innovative approaches for cancer treatment

Derek Taylor, PhD, a member of the Case Western Reserve School of Medicine, has been awarded the prestigious New Innovator Award by the National Institutes of Health (NIH).

22 Oct 2013

Study finds inherited GATA3 gene variation increases risk of developing pediatric leukemia

Research led by St. Jude Children's Research Hospital scientists has linked an inherited gene variation to a nearly four-fold increased risk of developing a pediatric acute lymphoblastic leukemia (ALL) subtype that is associated with a poor outcome.

21 Oct 2013

Study: Pds5 proteins modulate behavior of cohesins to ensure proper division of cells

Cohesins are protein complexes that join the two copies of each chromosome-called sister chromatids-to ensure that they are shared fairly between the daughter cells during cell division. In this way, each daughter cell receives exactly the same genetic information from the parent cell.

19 Oct 2013

Research: Hypermutation in cancer is more frequent in inactive X chromosome

Every case of cancer originates from changes in a person's genetic material (mutations). These usually occur as "somatic mutations" in individual cells during an individual's lifetime, rather than being inherited from a person's parents.

19 Oct 2013

Ariad Ends Phase III Leukemia Drug Trial

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18 Oct 2013

ARIAD discontinues Phase 3 EPIC trial of Iclusig in patients with chronic myeloid leukemia

ARIAD Pharmaceuticals, Inc. today announced that it is discontinuing the Phase 3 EPIC (Evaluation of Ponatinib versus Imatinib in Chronic Myeloid Leukemia) trial of Iclusig (ponatinib) in patients with newly diagnosed chronic myeloid leukemia.

18 Oct 2013

Researchers identify genetic variants associated with Barrett's and esophageal cancer

An international consortium co-led by researchers at Fred Hutchinson Cancer Research Center and the QIMR Berghofer Medical Research Institute in Australia has identified four genetic variants associated with an increased risk of esophageal cancer and its precursor, a condition called Barrett's esophagus.

14 Oct 2013

CNIO researchers perform first exome sequencing for non-infiltrating bladder cancer

Bladder cancer represents a serious public health problem in many countries, especially in Spain, where 11,200 new cases are recorded every year, one of the highest rates in the world. The majority of these tumours have a good prognosis -- 70-80% five-year survival after diagnosis -- and they do not infiltrate the bladder muscle at the time of diagnosis -- in around 80% of cases.

14 Oct 2013

Research delves deeply into genomics of glioblastoma multiforme cases to better target disease

When The Cancer Genome Atlas launched its massively collaborative approach to organ-by-organ genomic analysis of cancers, the brain had both the benefit, and the challenge, of going first.

11 Oct 2013

IVF and chromosome testing: an interview with Dr. Santiago Munné

The Society for Assisted Reproductive Technology (SART) releases every year a report on pregnancy rates by maternal age. The last one shows a decline on implantation rates per embryo from 36% in young women, to 27.3% in women 35-37, 17.5% in 38-40, and less than 10% above 40 years of age.

10 Oct 2013

Mechanism preserving genome integrity help develop new therapies against DiGeorge syndrome

An international team of scientists-including researchers at GENYO, the Centre for Genomics and Oncological Research (Pfizer-University of Granada- Andalusian Regional Government)-has described a molecular mechanism that facilitates the defence of the human genome against "bombarding" by mobile DNA sequences.

10 Oct 2013

Chromosome 4 News and Research

Further Reading

Scientists receive $1.2M grants to explore development of AD in individuals with Down syndrome

New computational method quickly orders DNA sequencing information along entire chromosomes

Research findings could offer new insights into how defective cells can multiply in diseases

ARIAD temporarily suspends commercial distribution of Iclusig drug in US

Interaction between fat cells and bacterial toxins can lead to chronic inflammation

‘Distinct’ bipolar pathways revealed

Obsessive-compulsive disorder and Tourette syndrome are highly heritable

Gene-diet interaction may shed light on increased risk of colorectal cancer linked with meat consumption

Study identifies gene that raises risk for colorectal cancer from eating red or processed meat

Scientist receives NIH New Innovator Award to design innovative approaches for cancer treatment

Study finds inherited GATA3 gene variation increases risk of developing pediatric leukemia

Study: Pds5 proteins modulate behavior of cohesins to ensure proper division of cells

Research: Hypermutation in cancer is more frequent in inactive X chromosome

Ariad Ends Phase III Leukemia Drug Trial

ARIAD discontinues Phase 3 EPIC trial of Iclusig in patients with chronic myeloid leukemia

Researchers identify genetic variants associated with Barrett's and esophageal cancer

CNIO researchers perform first exome sequencing for non-infiltrating bladder cancer

Research delves deeply into genomics of glioblastoma multiforme cases to better target disease

IVF and chromosome testing: an interview with Dr. Santiago Munné

Mechanism preserving genome integrity help develop new therapies against DiGeorge syndrome

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