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Antibodies are central to infection control and prolonged immunity. Key tools in biomedical research, antibodies are also used to diagnose human diseases and detect adaptive immunity to past infections with particular pathogens. While existing methods to discover and generate antibodies are successful, they also have important limitations, such as hard targets (short-lived, homologous, or unstable) […]
Pluripotent cells can give rise to all cells of the body, a power that researchers are eager to control because it opens the door to regenerative medicine and organ culture for transplants. But pluripotency is still a black box for science, controlled by unknown genetic (expression of genes) and epigenetic signals (biochemical marks that control […]
A new discovery by researchers at Columbia University Vagelos College of Physicians and Surgeons could fix one of the major shortcomings of current gene-editing tools, including CRISPR, and offer a powerful new approach for genetic engineering and gene therapy. Their new technology, called INTEGRATE, harnesses bacterial jumping genes to reliably insert any DNA sequence into […]
In the last six years, a tool called CRISPR-Cas9 has transformed genetic research, allowing scientists to snip and edit DNA strands at precise locations like a pair of tiny scissors. But sometimes, it takes more than scissors to do the job. Now, a collaborative international team has unveiled a new CRISPR-based tool that acts more […]
The field of materials science has become abuzz with “metal-organic frameworks” (MOFs), versatile compounds made up of metal ions connected to organic ligands, thus forming one-, two-, or three-dimensional structures. There is now an ever-growing list of applications for MOF, including separating petrochemicals, detoxing water from heavy metals and fluoride anions, and recovering hydrogen or […]
Measuring the toxic effects of chemical compounds on different types of cells is critical for developing cancer drugs, which must be able to kill their target cells. Analyzing cell survival is also an important task in fields such as environmental regulation, to test industrial and agricultural chemicals for possible harmful effects on healthy cells. MIT […]
Tissues and organs in the human body are shaped through forces generated by cells, that push and pull, to “sculpt” biological structures. Thanks to a new tool developed at McGill University, scientists will now be able to watch, and map these forces. Christopher Moraes, an assistant professor in McGill’s Department of Chemical Engineering, and colleagues […]
Most malaria drugs are designed to reduce symptoms after infection. They work by blocking replication of the disease-causing parasites in human blood, but they don’t prevent infection or transmission via mosquitoes. What’s worse, the malaria parasite is developing resistance to existing drugs. “In many ways, the search for new malaria drugs has been a search […]
In an evaluation of the safety and abuse research on the drug in hallucinogenic mushrooms, Johns Hopkins researchers suggest that if it clears phase III clinical trials, psilocybin should be re-categorized from a schedule I drug — one with no known medical potential — to a schedule IV drug such as prescription sleep aids, but […]
“Each human cell contains approximately 2 meters of DNA, yet that are too small to be visible to the unaided eye. Amazingly, all of that DNA is tightly packaged into a teeny little nucleus. There, we were able to observe the most basic separation principle of oil and water phases.” A new study by Professor […]