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.

Pfizer plans regulatory submissions of bosutinib for CML based on BELA study

Pfizer Inc. announced today it is planning regulatory submissions of bosutinib in patients with chronic myeloid leukemia (CML) based on data from a clinical program evaluating the compound in newly diagnosed and previously treated patients. These regulatory submissions are planned for 2011.

4 Dec 2010

Alteration in gene causes male embryos to develop as females

Scientists have discovered that the alteration of a single gene could cause some male embryos to develop as females.

4 Dec 2010

LMO1 gene variation can increase neuroblastoma risk

Pediatric cancer researchers have identified variations in a gene as important contributors to neuroblastoma, the most common solid cancer of early childhood. The study team, led by researchers at The Children's Hospital of Philadelphia, found that common variants in the LMO1 gene increase the risk of developing an aggressive form of neuroblastoma, and also mark the gene for continuing to drive the cancer's progression once it forms.

2 Dec 2010

Study finds duplicated region of DNA in major depressive disorder

A large genetic study of people with major depression has found that a duplicated region of DNA on chromosome 5 predisposes people to the disorder. The gene involved plays an important role in the development of nerve cells, adding to evidence that disruptions in neurotransmission networks form a biological basis for depression.

1 Dec 2010

Pfizer to present data on hematology portfolio at ASH Annual Meeting

Pfizer said today that new data on investigational compounds in its hematology portfolio will be presented at the 52nd Annual Meeting of the American Society of Hematology (ASH) in Orlando, December 4-7.

1 Dec 2010

DTRA presents Outstanding Scientific Achievement award to Aduro BioTech

Aduro BioTech, a clinical-stage immunotherapy company, is pleased to announce the "Outstanding Scientific Achievement" award from the Defense Threat Reduction Agency. The award was presented at the 2010 Chemical and Biological Defense Science and Technology Conference in Orlando, Florida to Dr. Justin Skoble, Associate Director, Biodefense and Process Development at Aduro BioTech.

30 Nov 2010

Research finds alteration in KBTBD13 protein causes nemaline myopathy

Researchers from the Department of Anesthesiology, Uniformed Services University of the Health Sciences (USU), along with research teams from the National Institutes of Health and from Australia, the Netherlands and Spain, have identified a novel gene on chromosome 15q that, when altered, causes nemaline myopathy with cores, a rare inherited muscle disorder. The gene encodes a member of the BTB/Kelch family of proteins.

30 Nov 2010

Study finds association between DGKK gene and hypospadias

Hypospadias is a common congenital malformation of the male external genitalia, affecting 1 in 375 boys. In hypospadias patients, the urethral opening is not located at the tip of the penis, but somewhere halfway, at the base of the penis, or even in the scrotum.

29 Nov 2010

Tension-dependent stabilization helps chromosome separation machinery

Scientists have discovered an amazingly simple way that cells stabilize their machinery for forcing apart chromosomes. Their findings are reported Nov. 25 in Nature.

25 Nov 2010

Research indicates possible danger of cancerous tissue development by using stem cells

Research work carried out at the Hebrew University of Jerusalem arouses a cautionary warning in the growing field of the development of stem cells as a means for future treatment of patients through replacement of diseased or damaged tissues by using the patient's own stem cells. The research indicates a possible danger of cancerous tissue development in the use of such cells.

22 Nov 2010

Scientists identify gene variants associated with eating disorder

Scientists at The Children's Hospital of Philadelphia have identified both common and rare gene variants associated with the eating disorder anorexia nervosa.

20 Nov 2010

Researchers find clue behind dementia development

Researchers at the Mayo Clinic campus in Florida have found a clue as to how some people develop a form of dementia that affects the brain areas associated with personality, behavior, and language.

18 Nov 2010

Researchers suggest that genetic screening may predict heart attack risk

Testing for 11 specific genetic variations in hundreds of people with no history of heart disease provided information that led to revision of their estimated heart attack risk, say Mayo Clinic researchers.

17 Nov 2010

Study finds cancer cells subject to several major chromosomal changes at the same time

New progress has been made on the road to understanding the origins of genetic changes in tumour cells. The prevalent theory has been that genetic changes in tumour cells come about in multiple stages over a long time. However, a recent study by researchers at Lund University shows that this does not have to be the case at all, but that the cancer cells instead can be subject to several major chromosomal changes at the same time.

9 Nov 2010

Deletion of 17q12 chromosomal region increases risk factor for ASD, schizophrenia

Researchers have identified the deletion of a genomic region on chromosome 17 as a significant risk factor for autism spectrum disorders (ASD) and schizophrenia. A mutation of one of the genes in the deleted interval already is a known cause of renal cysts and diabetes syndrome (RCAD).

8 Nov 2010

Researchers identify gene linked to melanoma metastasis

Researchers at Washington University School of Medicine in St. Louis have identified a gene linked to the spread of eye melanoma.

8 Nov 2010

Study finds genetic variants that may modify breast cancer risk among women with BRCA2 mutation

An international study led by researchers at Memorial Sloan-Kettering Cancer Center has identified genetic variants in women with BRCA2 mutations that may increase or decrease their risk of developing breast cancer. The study was published today online in the open-access journal PLoS Genetics.

29 Oct 2010

SPRYCEL receives FDA approval for treating adult patients with Ph+ CML in chronic phase

After receiving a priority review, Bristol-Myers Squibb Company and Otsuka Pharmaceutical Co., Ltd. today announced that the U.S. Food and Drug Administration (FDA) has approved SPRYCEL (dasatinib) 100 mg once daily for the treatment of adult patients with newly diagnosed Philadelphia chromosome-positive (Ph+) chronic myeloid leukemia (CML) in chronic phase.

29 Oct 2010

FDA approves Sprycel for treatment of adults with Ph+ CP-CML

The U.S. Food and Drug Administration today approved a new indication for Sprycel (dasatinib) for the treatment of a rare blood cancer when it is first diagnosed. The cancer, called Philadelphia chromosome positive chronic phase chronic myeloid leukemia (Ph+ CP-CML), is a slowly progressing blood and bone marrow disease linked to a genetic abnormality.

29 Oct 2010

Researchers find link between telomere length and colorectal cancer risk

For the first time, researchers have found a link between long telomeres and an increased risk for colorectal cancer, according to research presented at the American Association for Cancer Research special conference on Colorectal Cancer Biology to Therapy, held here Oct. 27-30, 2010.

29 Oct 2010

Chromosome 4 News and Research

Further Reading

Pfizer plans regulatory submissions of bosutinib for CML based on BELA study

Alteration in gene causes male embryos to develop as females

LMO1 gene variation can increase neuroblastoma risk

Study finds duplicated region of DNA in major depressive disorder

Pfizer to present data on hematology portfolio at ASH Annual Meeting

DTRA presents Outstanding Scientific Achievement award to Aduro BioTech

Research finds alteration in KBTBD13 protein causes nemaline myopathy

Study finds association between DGKK gene and hypospadias

Tension-dependent stabilization helps chromosome separation machinery

Research indicates possible danger of cancerous tissue development by using stem cells

Scientists identify gene variants associated with eating disorder

Researchers find clue behind dementia development

Researchers suggest that genetic screening may predict heart attack risk

Study finds cancer cells subject to several major chromosomal changes at the same time

Deletion of 17q12 chromosomal region increases risk factor for ASD, schizophrenia

Researchers identify gene linked to melanoma metastasis

Study finds genetic variants that may modify breast cancer risk among women with BRCA2 mutation

SPRYCEL receives FDA approval for treating adult patients with Ph+ CML in chronic phase

FDA approves Sprycel for treatment of adults with Ph+ CP-CML

Researchers find link between telomere length and colorectal cancer risk

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