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Nanotechnology holds promise for STD drug delivery

Researchers at Yale University have developed a novel approach to deliver small interfering RNA (siRNA) molecules using biodegradable nanoparticles, achieving sustained release and effective knockdown of gene activity. This breakthrough holds promise for the treatment of sexually transmitted diseases (STDs), particularly HPV and HIV.

SourceYale University·JournalNature Materials·DateMay 3, 2009

Simulated gene therapy

Scientists at the University of California, Berkeley and Los Alamos National Laboratory have developed a comprehensive numerical study of gene therapy. The research sheds light on the key factors that determine the success of dendrimers as gene delivery vehicles, including the charges of the dendrimers and their target cell membranes.

SourceAmerican Institute of Physics·JournalThe Journal of Chemical Physics·DateApr 29, 2009

Gene alterations associated with response to anthracycline therapy for breast cancer

Research found that women with tumors carrying TOP2A gene alterations had better outcomes when treated with anthracycline-based regimens, similar to those seen in HER2-positive tumors. The study suggests that TOP2A gene alteration is associated with increased benefit from anthracycline therapy.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateApr 28, 2009

JCI table of contents: March 23, 2009

Researchers at Vanderbilt University School of Medicine have discovered that inhibiting an enzyme called 11-beta-HSD2 blocks COX-2 activity in human and mouse colorectal tumor cells, potentially providing a new approach to preventing colorectal cancer. This finding is significant because long-term inhibition of 11-beta-HSD2 did not cau...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMar 23, 2009

Could genetics improve warfarin prescription?

A clinical trial is underway to test if genetics can improve warfarin prescription by optimizing each patient's dose. Using genetic information, doctors may be able to better determine optimal warfarin doses, minimizing the risk of excessive bleeding or clotting in patients at the extremes of the dosing range.

SourceNewcastle University·JournalNew England Journal of Medicine·DateFeb 18, 2009

Image pinpoints all 5 million atoms in viral coat

Researchers at Rice University have created a precise image of a virus' protective coat, containing 5 million atoms. The image provides the clearest picture yet of the viruses' genome-encasing shell called a 'capsid', which could lead to new approaches for antiviral therapies and gene delivery.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateFeb 16, 2009

Boosting its infectivity turns benign virus into good gene therapy carrier for cystic fibrosis

Scientists have turned a benign adeno-associated virus into a highly infectious form that can effectively deliver a gene to lung cells, potentially curing cystic fibrosis. The new strain was created by forcing evolution to increase infectivity several hundred-fold, overcoming previous limitations in gene therapy.

SourceUniversity of California - Berkeley·JournalProceedings of the National Academy of Sciences·DateFeb 16, 2009

Researchers identify new anti-tumor gene

A team of researchers from VCU identified a new anti-tumor gene called SARI, which can inhibit the growth and survival of tumor cells by interfering with cancer cell molecules. The discovery highlights a previously unrecognized molecular pathway underlying the anti-tumor action of interferon.

SourceVirginia Commonwealth University·JournalProceedings of the National Academy of Sciences·DateDec 16, 2008

Harnessing miRNA natural gene repressors for anticancer therapy

Scientists have developed a new approach to harness the power of microRNAs (miRNAs) as natural gene repressors for therapeutic purposes. By engineering mouse bone marrow cells to express genes only when miR-181a is downregulated, they were able to create immune cells that could target and destroy cancer cells.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 1, 2008

JCI online early table of contents: Dec. 1, 2008

Researchers have developed a new approach to modulate gene expression using miRNA natural gene repressors for therapeutic purposes, effectively treating cancer in mice. Additionally, the study has provided insight into the molecular mechanisms controlling epithelial fluid and HCO3– secretion, which may help understand cystic fibrosis.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 1, 2008

Yale researchers unravel mystery of brain aneurysms

A study published in Nature Genetics has identified three chromosome segments where common genetic variations can create significant risk for ruptured aneurysms, leading to strokes. The findings could lead to new screening tests and therapies to strengthen blood vessels in the brain.

SourceYale University·JournalNature Genetics·DateNov 9, 2008