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Ribonucleic acid (RNA) is a biologically important type of molecule that consists of a long chain of nucleotide units. Each nucleotide consists of a nitrogenous base, a ribose sugar, and a phosphate.

Researchers uncover molecular pathway controlling bone resorption and tooth eruption

RUNX2 is best known as a master transcription factor of osteoblast differentiation. Mutations in, or haploinsufficiency of RUNX2 cause CCD, a skeletal disorder characterized by delayed permanent tooth eruption, supernumerary teeth and clavicular defects.

30 Oct 2026

Targeting specific enzyme reverses radiation-induced immune suppression in cancer

Researchers at the University of Chicago identified a mechanism to make immune cells reprogrammed by radiation therapy attack tumors rather than protect them.

30 Oct 2026

Newly discovered protein helps preserve egg chromosome integrity during aging

Eggs follow a very different developmental path from sperm. Once a male hits puberty, sperm cells are produced continuously throughout his life.

29 Oct 2026

Evolutionary changes in key enzyme help bacteria fine-tune protein synthesis

Evolutionary changes in key protein synthesis enzyme, isoleucyl-tRNA synthetase (IleRS), may help bacteria fine-tune how quickly proteins are made, report researchers from Institute of Science Tokyo, Japan; the University of Zagreb Faculty of Science, Croatia; and ETH Zürich, Switzerland.

29 Oct 2026

Study redefines picobirnavirus as a bacteria hunting virus

Thriving alongside trillions of bacteria in the human digestive tract is a vast population of viruses. Ever since one such denizen of the gut microbiome, known as picobirnavirus, was first spotted decades ago, researchers thought it directly infected human tissue and played a role in gastrointestinal illness.

29 Oct 2026

New study identifies potential targets for KRAS-related treatment resistance

Decoding of messenger RNA (mRNA) occurs during translation, the vital cellular process that builds proteins. Errors in this process are known to lead to cancer growth.

29 Oct 2026

New host target identified to block hepatitis E virus

Hepatitis E virus (HEV) is a major cause of acute viral hepatitis, yet antiviral treatment remains largely limited to the off-label use of ribavirin. Ribavirin can cause substantial toxicity, is contraindicated during pregnancy and does not reliably benefit every patient.

29 Oct 2026

New mechanism helps cancer cells selectively produce proteins that drive tumor growth

A previously unknown mechanism helps cancer cells selectively produce proteins that drive tumor growth - such as KRAS - in common cancers, according to new research from The University of Texas MD Anderson Cancer Center.

29 Oct 2026

New study reveals why colorectal cancer is more aggressive in youth

Dana-Farber Cancer Institute researchers, along with Mass General Brigham researchers from the Gene Lay Institute of Immunology and Inflammation, and the Broad Institute, have uncovered biological clues to why colorectal cancer can behave more aggressively in younger people.

29 Oct 2026

New mathematical method maps gene roles across different species

Much of what we know about biology comes from animal models, particularly mice. Applying these insights to humans, however, is not always straightforward.

29 Oct 2026

Mutated neutrophils may trigger immune attacks in lupus

Scientists at La Jolla Institute for Immunology (LJI) and the University of Washington (UW) have discovered that patients with lupus have unusual mutations that may turn their bodies into battlegrounds.

28 Oct 2026

Inflammatory macrophages identified as drivers of chronic joint osteoarthritis

Researchers have identified a group of inflammatory macrophages that drive osteoarthritis by sustaining inflammation in the synovium – a layer of connective tissue within joints – and show that they can target these immune cells to treat the disease in mice.

28 Oct 2026

Brain development eliminates flawed neurons to ensure genomic integrity

During fetal development, the human brain generates an excess of neurons, most of which are eliminated shortly before and after birth.

28 Oct 2026

$1 million grant advances research into RNA-DNA virus evolution

Much remains unknown about the origin of viruses and how they evolve - but hunting for answers has been the focus of Portland State biology professor Ken Stedman's eXtreme Virus Lab for the past 25 years.

27 Oct 2026

Amyloid fibers help sperm deliver RNA to mouse embryos

Researchers identified RNA-associated amyloid fibrils in human seminal fluid and demonstrated that synthetic PAP fibrils could enter mammalian sperm. In mouse IVF experiments, these fibrils helped sperm deliver RNA to embryos, where the detected reporter-protein signal was at least tenfold higher than without fibril exposure.

27 Oct 2026

Proteins linked to Alzheimer's found to assist sperm cells

Unexpectedly, a kind of protein that is usually linked with diseases in the brain may play a vital role in semen, helping shepherd genetic material into sperm cells, scientists at Columbia's Zuckerman Institute report today in the research journal Molecular Cell.

26 Oct 2026