New method provides better understanding of gene 'enhancers' work

Using anew method called Net-CAGE, researchers identified as many as 20,000 new enhancers in humans. They found that while promoters are activated in a variety of cell types, enhancers tend to function in just 1 cell type, thus showing an important difference between the 2 types of region.

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New CRISPR class expands genetic engineering toolbox

Biomedical engineers have used a previously unexplored CRISPR technology to accurately regulate and edit target genes in human cells. With this new approach, the researchers hope to dramatically expand the CRISPR-based tools available to biomedical engineers, opening up a new and diverse frontier of genome engineering technologies.

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Some parents pass on more mutations to their children than others

Everyone is a mutant but some are prone to diverge more than others, report scientists. A new study shows the number of mutations a child has compared to her parents varies dramatically with some people being born with twice as many as others, and that characteristic runs in families.

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Quality control in immune communication: Chaperones detect immature signaling molecules

The cells of our immune system constantly communicate with one another by exchanging complex protein molecules. A team has now revealed how dedicated cellular control proteins, referred to as chaperones, detect immature immune signaling proteins and prevent them from leaving the cell.

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Hook-on drugs: New delivery strategy for K-Ras disruption

Scientists have succeeded in designing a compound to hook onto the pocket of the enzyme FTase and GGTase I, thereby inhibiting K-Ras. Scientists have worked to concoct an effective drug to target K-Ras proteins which cause cancer when they mutate. It is difficult to infiltrate K-Ras due to a lack of interactive pockets, so a strategy was devised to attack the necessary enzyme in the lipid modification of K-Ras.

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Thinner shells for delivering gentler therapeutic bursts

Releasing drugs that are packaged into microcapsules requires a significant amount of force, and the resulting burst can cause damage to human tissues or cause blood clots. A new technique creates lopsided microcapsule 'shells' that can burst and release their cargo at much lower pressure, making them safer for use in the body.

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DNA is held together by hydrophobic forces

Researchers have disproved the prevailing theory of how DNA binds itself. It is not, as is generally believed, hydrogen bonds which bind together the 2 sides of the DNA structure. Instead, water is the key. The discovery opens doors for new understanding in research in medicine and life sciences.

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