Chromosome 3 News and Research

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Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 3, one copy inherited from each parent, form one of the pairs. Chromosome 3 spans almost 200 million base pairs (the building blocks of DNA) and represents approximately 6.5 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 3 likely contains between 1,100 and 1,500 genes.

Genes on chromosome 3 are among the estimated 20,000 to 25,000 total genes in the human genome.

New genetic approach may hold promise for sickle cell disease

A new genetic approach to treating sickle cell disease is showing promising results in mice, report researchers from Children's Hospital Boston. By inactivating a gene they previously discovered to be important in the laboratory, they were able to boost production of a healthy fetal form of hemoglobin in the mice, potentially compensating for the defective adult hemoglobin that causes red blood cells to "sickle" and obstruct blood flow.

8 Dec 2009

Animal study demonstrates how whole chromosome changes cause cancer

Mayo Clinic researchers have proven the longstanding theory that changes in the number of whole chromosomes -- called aneuploidy -- can cause cancer by eliminating tumor suppressor genes.

8 Dec 2009

Phase II clinical trial results reveal positive effects of omacetaxine against CML

Results from a phase II clinical trial indicate a novel drug may provide a treatment option for chronic myeloid leukemia (CML) patients who do not respond to current therapies, researchers from The University of Texas M. D. Anderson Cancer Center report today at the 51st Annual Meeting of the American Society of Hematology.

8 Dec 2009

New findings may yield more effective therapies for infants with blood cancer

Pediatric oncologists have identified specific genes, dubbed partner genes, that fuse with another gene to drive an often-fatal form of leukemia in infants. By more accurately defining specific partner genes, researchers expect to better predict which infants may benefit from particular treatments.

7 Dec 2009

New study reveals genetic alteration can lead to severe childhood obesity

Scientists in Cambridge have discovered that the loss of a key segment of DNA can lead to severe childhood obesity. This is the first study to show that this kind of genetic alteration can cause obesity. The results are published today in Nature.

6 Dec 2009

New treatment options for leukemia and myeloproliferative disorders introduced

Leukemia and myeloproliferative disorders are serious and often deadly blood cancers. Research presented today at the 51st Annual Meeting of the American Society of Hematology introduces potential new treatment options and improved diagnostic methods for patients suffering from acute promyelocytic leukemia, chronic myeloid leukemia, infant acute lymphoblastic leukemia, and myelofibrosis that are based on a better understanding of the underlying genetic causes of these conditions.

6 Dec 2009

IMF to stage presentation on multiple myeloma at ASH annual meeting

The International Myeloma Foundation (IMF)—supporting research and providing education, advocacy and support for myeloma patients, families, researchers and physicians—today said presentations at the annual meeting of the American Society of Hematology (ASH) will cover all stages of multiple myeloma, a major milestone in treating this and related cancers.

4 Dec 2009

Researchers discover mechanism that explains how chromosomal translocations are not random

Researchers at the UC San Diego School of Medicine have pinpointed a mechanism that may help explain how chromosomal translocations - the supposedly random shuffling of large chunks of DNA that frequently lead to cancer - aren't so random after all. They have developed a model of such chromosomal mix-ups in prostate cancer which indicates that the male sex hormone (androgen) receptor unexpectedly plays a key role in driving specific translocations in the development of cancer.

4 Dec 2009

More than 80 abstracts highlighting Bristol-Myers Squibb's oncology compound to be presented

Bristol-Myers Squibb Company today announced that more than 80 abstracts highlighting compounds from the company’s oncology portfolio will be presented at the 51st Annual Meeting of the American Society of Hematology (ASH) to be held December 5-8 in New Orleans.

3 Dec 2009

New data demonstrating the strength of Novartis' hematology portfolio to be presented

Novartis announced today that new data, including a late-breaking presentation on Tasigna® (nilotinib) 200 mg capsules in a form of chronic myeloid leukemia, demonstrate the strength of the company's hematology portfolio in advancing the care of patients.

2 Dec 2009

Sperm genes may have a detrimental effect on longevity, says new study

Researchers in Japan have found that female mice produced by using genetic material from two mothers but no father live significantly longer than mice with the normal mix of maternal and paternal genes. Their findings provide the first evidence that sperm genes may have a detrimental effect on lifespan in mammals.

1 Dec 2009

Developmental and behavior problems in individuals with autism associated DNA imbalance characterized

Researchers at Signature Genomic Laboratories, which performs diagnostic genetic testing of chromosome abnormalities in individuals with unexplained physical and developmental disabilities, including autism, recently characterized a broad spectrum of developmental and behavior problems in individuals with a DNA imbalance that has been associated with autism.

24 Nov 2009

NCCN Guidelines adds ofatumumab and romidepsin as therapy options for CLL

Two recent FDA approvals have prompted the National Comprehensive Cancer Network (NCCN) to update the NCCN Clinical Practice Guidelines in Oncology(TM) for Non-Hodgkin's Lymphomas to include ofatumumab (Azerra(TM), GlaxoSmithKline) and romidepsin (Istodax(R), Gloucester Pharmaceuticals) as treatment options for select patients with two types of Non-Hodgkin's Lymphomas.

24 Nov 2009

Gene deletion can increase common complication of bone marrow transplants

A commonly inherited gene deletion can increase the likelihood of immune complications following bone marrow transplantation, an international team of researchers reports in the November 22 advance online issue of Nature Genetics.

23 Nov 2009

Microarray analysis can identify chromosome abnormalities in children with Pitt-Hopkins syndrome

Researchers at Signature Genomic Laboratories, which performs diagnostic genetic testing of chromosome abnormalities in individuals with unexplained physical and developmental disabilities, recently showed that microarray analysis can identify small DNA alterations in individuals with Pitt-Hopkins syndrome, a rare and poorly characterized genetic disorder.

19 Nov 2009

Possible new approach to slow the progression of cognitive decline in Down's syndrome

A study by neuroscientist William C. Mobley, MD, PhD, chair of the Department of Neurosciences at the University of California, San Diego School of Medicine, and colleagues at Stanford University Medical School has demonstrated a possible new approach to slowing the inevitable progression of cognitive decline found in Down's syndrome.

19 Nov 2009

Asuragen enters into an exclusive agreement with Life Technologies

Asuragen, Inc. announced today that it has entered into an exclusive agreement with Life Technologies Corporation to develop and distribute worldwide an in-vitro diagnostic test intended to aid clinicians in the monitoring and treatment of individuals afflicted with chronic myeloid leukemia (CML).

18 Nov 2009

Cytoskeleton plays a critical role to bring chromosome pairs together: Study

Meiosis - the pairing and recombination of chromosomes, followed by segregation of half to each egg or sperm cell - is a major crossroads in all organisms reproducing sexually. Yet, how the cell precisely choreographs these chromosomal interactions is a long-standing question.

16 Nov 2009

Research team identifies five new gene regions that raise the risk of childhood-onset IBD

In the largest, most comprehensive genetic analysis of childhood-onset inflammatory bowel disease (IBD), an international research team has identified five new gene regions, including one involved in a biological pathway that helps drive the painful inflammation of the digestive tract that characterizes the disease.

16 Nov 2009

Co-founders of Signature Genomics recognized with Inland Northwest Catalyst Award

Signature Genomics, which performs diagnostic genetic testing of chromosome abnormalities in individuals with unexplained mental retardation and/or birth defects, today announced company co-founders Dr. Lisa G. Shaffer, Ph.D., and Dr. Bassem A. Bejjani, M.D. have received the 2009 Inland Northwest Catalyst Award for Innovators of the Year.

12 Nov 2009

Chromosome 3 News and Research

Further Reading

New genetic approach may hold promise for sickle cell disease

Animal study demonstrates how whole chromosome changes cause cancer

Phase II clinical trial results reveal positive effects of omacetaxine against CML

New findings may yield more effective therapies for infants with blood cancer

New study reveals genetic alteration can lead to severe childhood obesity

New treatment options for leukemia and myeloproliferative disorders introduced

IMF to stage presentation on multiple myeloma at ASH annual meeting

Researchers discover mechanism that explains how chromosomal translocations are not random

More than 80 abstracts highlighting Bristol-Myers Squibb's oncology compound to be presented

New data demonstrating the strength of Novartis' hematology portfolio to be presented

Sperm genes may have a detrimental effect on longevity, says new study

Developmental and behavior problems in individuals with autism associated DNA imbalance characterized

NCCN Guidelines adds ofatumumab and romidepsin as therapy options for CLL

Gene deletion can increase common complication of bone marrow transplants

Microarray analysis can identify chromosome abnormalities in children with Pitt-Hopkins syndrome

Possible new approach to slow the progression of cognitive decline in Down's syndrome

Asuragen enters into an exclusive agreement with Life Technologies

Cytoskeleton plays a critical role to bring chromosome pairs together: Study

Research team identifies five new gene regions that raise the risk of childhood-onset IBD

Co-founders of Signature Genomics recognized with Inland Northwest Catalyst Award

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