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University of Pittsburgh discovers genetic 'shut down' trigger in healthy immune cells

Researchers identified a genetic mechanism that permanently shuts down crucial genes in healthy immune system cells, which could be used to target cancer and infection treatments. The discovery was made in normal blood samples and found in a quarter of leukemia samples, highlighting the potential for this mutation as a therapeutic target.

Batten down the hatches against HIV

Carbon nanotubes successfully deliver RNA fragments that shut off genes for HIV-specific receptors on human T-cells. This approach significantly slows down HIV infection by blocking the virus's entry points.

SourceWiley·DateFeb 20, 2007

Gene hunters close in on Lou Gehrig’s disease

Researchers at Johns Hopkins Medicine have identified 34 unique genetic variations associated with sporadic ALS, bringing them closer to developing treatments. The study scanned the entire genome of 276 subjects with ALS and found that these genetic variants are more common in individuals with the disease.

SourceJohns Hopkins Medicine·JournalThe Lancet Neurology·DateFeb 20, 2007

Studies identify DNA regions linked to nicotine dependence

Researchers have identified several genes linked to nicotine dependence, including CHRNA5 and NRXN1, which play a role in regulating communication between nerve cells. These findings could lead to the development of more effective smoking cessation therapies tailored to an individual's genetic traits.

SourceWashU Medicine·JournalHuman Molecular Genetics·DateFeb 14, 2007

Silencing the cause of mad cow disease

A study published in JCI Journal shows that silencing the PrPc gene suppresses BSE and CJD accumulation, offering a new approach to treat these fatal diseases. The therapy delayed PrPsc accumulation in mice, providing potential hope for individuals with neurodegenerative disorders.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 1, 2006

Gene therapy for hereditary lung disease advances

Researchers have successfully tested a gene therapy to combat alpha-1 antitrypsin deficiency, a common hereditary disorder that causes lung and liver disease. The treatment showed no adverse effects and introduced the corrective gene into patients' blood, with some evidence of protein production.

SourceUniversity of Florida·JournalHuman Gene Therapy·DateNov 21, 2006

Scientists find new way to manipulate DNA

Researchers developed a new formula to design flows that break polymers into specific lengths or withstand certain flows, with potential implications for industries like shipping and oil. This discovery also enables more precise control over the length of DNA strands in genome sequencing.

SourceUniversity of Michigan·JournalProceedings of the National Academy of Sciences·DateNov 15, 2006

Gene therapy a possibility for metachromatic leukodystrophy?

Researchers have successfully treated mice with gene therapy, reversing neurological damage and deficits caused by the genetic defect that leads to metachromatic leukodystrophy. The treatment involves using hematopoietic stem progenitor cells genetically modified to express high levels of ARSA protein.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2006

JCI table of contents: Nov. 1, 2006

Researchers discovered that GBA2 is necessary for normal sperm function and male fertility in mice. A lack of GBA2 results in abnormal sperm morphology and decreased fertility, similar to a treatment for Gaucher's disease.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2006

Gene therapy for inherited childhood blindness tested in mice

Researchers have developed a gene therapy treatment that restored retinal function to near-normal levels and prevented degeneration in cones of mice with Leber congenital amaurosis. The study shows promise for potential human applications, offering new hope for individuals affected by this condition.

SourcePLOS·JournalPLOS Medicine·DateOct 9, 2006

Gene transfer using mutant form of good cholesterol cuts vascular plaque and inflammation

Researchers developed a gene transfer method using the mutant form of apolipoprotein A-I (Apo A-I Milano) to treat vascular inflammation and plaque buildup. The study found that Apo A-I Milano gene transfer resulted in a 65% reduction in plaque buildup, compared to a 25% decrease with the normal HDL gene.

SourceCedars-Sinai Medical Center·JournalJournal of the American College of Cardiology·DateSep 28, 2006

What's next for gene therapy? Plastic

Researchers at Virginia Tech have designed polymer macromolecules as effective gene transfer agents, overcoming the need for foreign DNA and viruses. The study's findings focus on the structure of these molecules, which can control their ability to transfer genes across cell membranes.