A seven-year-project to develop a barcoding and tracking system for tissue stem cells has revealed previously unrecognized features of normal blood production: new data suggests, surprisingly, that the billions of blood cells that we produce each day are made not by blood stem cells, but rather their less pluripotent descendants, called progenitor cells.
Conventional antibiotics are indiscriminate about what they kill, a trait that can lead to complications for patients and can contribute to the growing problems of antibiotic resistance. But a a 'programmable' antibiotic being developed at Rockefeller would selectively target only the bad bugs, particularly those harboring antibiotic resistance genes, and leave beneficial microbes alone.
For hundreds of years biologists have studied cells through the lens of a microscope. With a little help from a team of engineers, these scientists could soon be donning 3-D glasses in a home-theater-like lab to take their own fantastic voyage into the petri dish.
A powerful scientific tool for editing the DNA instructions in a genome can now also be applied to RNA as researchers have demonstrated a means by which the CRISPR/Cas9 protein complex can be programmed to recognize and cleave RNA at sequence-specific target sites.
A team of bioengineers, molecular biologists, and clinicians used a novel rare cell-sorter to isolate breast cancer cells from the blood of patients, with the aim of identifying the most effective drugs to treat each individual tumor.
Consumers concerned about safety of silver ions in antibacterial and odor-free clothing will soon have a proven safe alternative thanks to ultra-thin thread and a substance found naturally in red algae.
A mechanical engineer has developed a new, high-throughput method for sorting cells capable of separating 10 billion bacterial cells in 30 minutes. The finding has already proven useful for studying bacterial cells and microalgae, and could one day have direct applications for biomedical research and environmental science - basically any field in which a large quantity of microbial samples need to be processed.
Scientists present a detailed new model that for the first time proposes how plant cells precisely position a 'dynamic and complex' structure called a phragmoplast at the cell center during every division and how it directs cytokinesis.
Scientists from both campuses of The Scripps Research Institute (TSRI) have been awarded a total of $7.9 million from the Defense Advanced Research Projects Agency (DARPA). The two teams will build what is, in essence, an artificial immune system, comprising vast 'libraries' of different types of molecules from which will emerge individual compounds to detect or neutralize an array of biological and chemical threats.
When the body forms new tissues during the healing process, cells must be able to communicate with each other. For years, scientists believed this communication happened primarily through chemical signaling. Now researchers have found that another dimension - mechanical communication - is equally if not more crucial.
Scientists try to understand how networks of genes work together to create specific patterns like stripes. They have gone beyond studying individual networks and have created computational and synthetic mechanisms for a whole 'design space' of networks in the bacteria Escherichia coli.
Scientists have established an easy to use, low-cost, rapid, and high sensitivity semiconductor-imaging based medical diagnostic biosensing system for analyzing blood and urine for early diagnosis of ailments including diabetes and Alzheimer's disease.
Researchers have successfully identified the 'molecular accelerator' that activates the peroxisomal processes. To their surprise, it turned out to be an old acquaintance: a certain module of the familiar protein Pex22p, which has hitherto always been considered an anchor protein.