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.

Researchers discover gene locations affecting wrist bones in children

Pediatric researchers have discovered gene locations affecting bone strength in wrist bones, the most common site for fractures in children. Children who have those genetic variants may be at higher-than-average risk of wrist fractures, and could especially benefit from activities and diets that promote bone strength.

30 Jun 2015

Special protein in the brain's smallest blood vessels may affect stroke risk

Studies on mice reveal that a special protein in the brain's tiniest blood vessels may affect the risk of stroke. Peter Carlsson, professor in genetics at the University of Gothenburg, and his research team are publishing new research findings in the journal Developmental Cell about how the blood-brain barrier develops and what makes the capillaries in the brain different from small blood vessels in other organs.

26 Jun 2015

Study reveals differences in the way brain inflammation is expressed in people with Down syndrome, AD

Researchers at the University of Kentucky's Sanders-Brown Center on Aging have completed a study that revealed differences in the way brain inflammation -- considered a key component of AD-- is expressed in different subsets of patients, in particular people with Down syndrome (DS) and AD.

26 Jun 2015

Detroit-area patients contribute to national study that redefines diagnosis, treatment of glioma

Sixty-seven patients from the Hermelin Brain Tumor Center at Henry Ford Hospital and their families made important contributions to a national cancer study that proposes a change in how some brain tumors are classified - and ultimately treated.

25 Jun 2015

Melanoma patients with high levels of H2A.Z.2 protein less likely to survive

Melanoma patients with high levels of a protein that controls the expression of pro-growth genes are less likely to survive, according to a study led by researchers at Icahn School of Medicine at Mount Sinai and published online in the journal Molecular Cell.

18 Jun 2015

Simple test could help identify genetically inherited risk for prostate cancer

Men with an elevated, genetically inherited risk for prostate cancer could be routinely identified with a simple blood or urine test, scientists at UC San Francisco and Kaiser Permanente Northern California have concluded, potentially paving the way to better or earlier diagnosis.

18 Jun 2015

Molecular classifications of low-grade gliomas proposed

Two research teams have independently proposed molecular classification systems for grade II and III glioma based on three tumour markers, with each category displaying distinct clinical features and outcomes.

12 Jun 2015

Two fragile X proteins play crucial role in proper development of neurons

Fragile X syndrome is the most common inherited intellectual disability and the greatest single genetic contributor to autism. Unlocking the mechanisms behind fragile X could make important revelations about the brain.

11 Jun 2015

Study on how maternal proteins help regulate initial cell divisions during early development

Researchers in the University of Georgia's Regenerative Bioscience Center are visually capturing the first process of chromosome alignment and separation at the beginning of mouse development. The findings could lead to answers to questions concerning the mechanisms leading to birth defects and chromosome instability in cancer cells.

10 Jun 2015

Ibrutinib (IMBRUVICA) improves survival in treatment-naïve patients with chronic lymphocytic leukemia

Today, Pharmacyclics LLC, an AbbVie company, announced that ibrutinib (IMBRUVICA) improved progression-free survival (PFS; primary endpoint) and multiple secondary endpoints including overall survival (OS) and overall response rate (ORR) in treatment-naïve patients with chronic lymphocytic leukemia or small lymphocytic lymphoma (CLL/SLL, respectively) in the final analysis of the Phase III RESONATE™-2 (PCYC-1115) trial.

5 Jun 2015

Rhythm announces initiation of two setmelanotide Phase 2 trials for treatment of PWS, POMC-null obesity

Rhythm announced today the initiation of two Phase 2 clinical trials focused on evaluating the safety and effectiveness of setmelanotide (RM-493), the company's novel melanocortin 4 receptor (MC4R) agonist, for the treatment of Prader-Willi Syndrome (PWS) and POMC-null obesity.

4 Jun 2015

Liverpool scientists complete genomics studies on multidrug resistant Typhoid fever in Africa

The team has completed two genomics studies on the tropical disease, a condition that is estimated to cause up to 30 million illnesses and over a quarter of a million deaths globally each year.

27 May 2015

Mayo Clinic scientists create mouse model of ALS, FTD caused by mutations in C9ORF72 gene

Scientists at Mayo Clinic, Jacksonville, Florida created a novel mouse that exhibits the symptoms and neurodegeneration associated with the most common genetic forms of frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS, Lou Gehrig's disease), both of which are caused by a mutation in the a gene called C9ORF72.

24 May 2015

Researchers uncover mechanism behind common mutation that helps cancer cells replicate limitlessly

More than 500,000 people in the United States die each year of cancer-related causes. Now, emerging research has identified the mechanism behind one of the most common mutations that help cancer cells replicate limitlessly.

19 May 2015

Researchers discover how and where chromosome fragile sites occur in human DNA

Using a novel method they developed to map chromosome breaks in a model organism, the budding yeast, Wenyi Feng, Ph.D., of Upstate Medical University and her colleagues have discovered new information as to how and where chromosome fragile sites can occur in human DNA. These sites are frequently observed in cancer cells and are responsible for causing genomic rearrangements.

15 May 2015

CNIO researchers identify new strategy to combat cancer

Scientists from the Spanish National Cancer Research Centre have discovered a new strategy to fight cancer, which is very different from those described to date. Their work shows for the first time that telomeres -- the structures protecting the ends of the chromosomes -- may represent an effective anti-cancer target: by blocking the TRF1 gene, which is essential for the telomeres, they have shown dramatic improvements in mice with lung cancer.

14 May 2015

TGen-led study associates 'X-linked' syndromes to genetic origins

A study led by the Translational Genomics Research Institute has for the first time matched dozens of infantile diseases and syndromes involving muscle weakness and stiff joints to their likely genetic origins.

14 May 2015

Researchers identify three genes involved in choroid plexus carcinoma

Researchers have identified three genes that play a pivotal role in the brain tumor choroid plexus carcinoma (CPC), a discovery that lays the groundwork for more effective treatment of this rare, often fatal cancer. St. Jude Children's Research Hospital scientists led the study, which appears today in the journal Cancer Cell.

12 May 2015

MD Anderson researchers discover link between telomere degeneration and MDS

A study revealing fresh insight about chromosome "tails" called telomeres may provide scientists with a new way to look at developing treatments or even preventing a group of blood cell disorders known as myelodysplastic syndromes (MDS).

12 May 2015

Leicester research team identifies potential new targets for cancer treatments

An international consortium of scientists led by a group from the University of Leicester has announced a new advance in understanding the mechanisms of cancer and how to target it more effectively with new treatments...

12 May 2015

Chromosome 4 News and Research

Further Reading

Researchers discover gene locations affecting wrist bones in children

Special protein in the brain's smallest blood vessels may affect stroke risk

Study reveals differences in the way brain inflammation is expressed in people with Down syndrome, AD

Detroit-area patients contribute to national study that redefines diagnosis, treatment of glioma

Melanoma patients with high levels of H2A.Z.2 protein less likely to survive

Simple test could help identify genetically inherited risk for prostate cancer

Molecular classifications of low-grade gliomas proposed

Two fragile X proteins play crucial role in proper development of neurons

Study on how maternal proteins help regulate initial cell divisions during early development

Ibrutinib (IMBRUVICA) improves survival in treatment-naïve patients with chronic lymphocytic leukemia

Rhythm announces initiation of two setmelanotide Phase 2 trials for treatment of PWS, POMC-null obesity

Liverpool scientists complete genomics studies on multidrug resistant Typhoid fever in Africa

Mayo Clinic scientists create mouse model of ALS, FTD caused by mutations in C9ORF72 gene

Researchers uncover mechanism behind common mutation that helps cancer cells replicate limitlessly

Researchers discover how and where chromosome fragile sites occur in human DNA

CNIO researchers identify new strategy to combat cancer

TGen-led study associates 'X-linked' syndromes to genetic origins

Researchers identify three genes involved in choroid plexus carcinoma

MD Anderson researchers discover link between telomere degeneration and MDS

Leicester research team identifies potential new targets for cancer treatments

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