News & HighlightsNews
Researchers master gene editing technique in mosquito that transmits deadly diseases
Traditionally, to understand how a gene functions, a scientist would breed an organism that lacks that gene — “knocking it out” — then ask how the organism has changed. Are its senses affected? Its behavior? Can it even survive? Thanks to the recent advance of gene editing technology, this ...
Chemical tag marks future microRNAs for processing, study shows
Just as two DNA strands naturally arrange themselves into a helix, DNA’s molecular cousin RNA can form hairpin-like loops. But unlike DNA, which has a single job, RNA can play many parts — including acting as a precursor for small molecules that block the activity of genes. These small RNA molec...
Changes in a blood-based molecular pathway identified in Alzheimer’s disease
By the time most people receive a diagnosis of Alzheimer’s disease — based on clinical signs of mental decline — their brains have already suffered a decade or more of damage. But although the mechanisms that spur the destruction of neurons in Alzheimer’s disease are not yet fully understood...
Scientists pinpoint molecule that controls stem cell plasticity by boosting gene expression
Stem cells can have a strong sense of identity. Taken out of their home in the hair follicle, for example, and grown in culture, these cells remain true to themselves. After waiting in limbo, these cultured cells become capable of regenerating follicles and other skin structures once transplanted...
New antibody therapy dramatically improves psoriasis symptoms in clinical trial
Many patients suffering from psoriasis showed significant recovery after just a single dose of an experimental treatment with a human antibody that blocks an immune signaling protein crucial to the disease, researchers report. By the end of the trial, conducted at Rockefeller University and seven...
Analysis of worm neurons suggests how a single stimulus can trigger different responses
Even worms have free will. If offered a delicious smell, for example, a roundworm will usually stop its wandering to investigate the source, but sometimes it won’t. Just as with humans, the same stimulus does not always provoke the same response, even from the same individual. New research at Roc...
Study details microRNA’s role as a double agent during Hep C infection
In the battle between a cell and a virus, either side may resort to subterfuge. Molecular messages, which control the cellular machinery both sides need, are vulnerable to interception or forgery. New research at Rockefeller University has revealed the unique twist on just such a strategy deploye...
Growth signal can influence cancer cells’ vulnerability to drugs, study suggests
In theory, a tumor is an army of clones, made up of many copies of the original cancerous cell. But tumor cells don’t always act like duplicates, and their unpredictable behavior can create problems for treatment. For while some cells within a tumor succumb to anti-cancer drugs, others may surviv...
Research captures transient details of HIV genome packaging
Once HIV-1 has hijacked a host cell to make copies of its own RNA genome and viral proteins, it must assemble these components into new virus particles. The orchestration of this intricate assembly process falls to a viral protein known as Gag. For one thing, Gag must be able to discern viral RNA...
Virus-cutting enzyme helps bacteria remember a threat
Bacteria may not have brains, but they do have memories, at least when it comes to viruses that attack them. Many bacteria have a molecular immune system which allows these microbes to capture and retain pieces of viral DNA that they have encountered in the past, in order to recognize and destroy...
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