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How skates and rays got their wings

A new study by scientists from the University of Chicago reveals that the unique pectoral fins of skates and rays are built using repurposed genes from typical limb-development pathways. The findings provide insight into the genetic mechanisms behind the evolution and diversification of vertebrate appendages.

SourceUniversity of Chicago Medical Center·JournalProceedings of the National Academy of Sciences·DateDec 9, 2015

DNA-directed RNA transcription may have profound adaptability

Researchers used single-cell transcriptogenomics to study the cell's defense mechanisms and found that DNA-directed RNA transcription can exclude ENU-mutated alleles, preventing them from being expressed. This novel mechanism may provide a new approach to understanding aging and disease.

SourceElsevier·JournalMutation Research/Genetic Toxicology and Environmental Mutagenesis·DateMar 11, 2015

Scientists identify the largest network of protein interactions related to Alzheimer's disease

Researchers at IRB Barcelona discovered 200 new protein interactions that could be linked to Alzheimer's disease, bringing the total number of interactions to 6000. The study reveals new molecular mechanisms, including oxidative stress and inflammation, which may play a role in the development of the disease.

ROCK(2) 'n' roll target for treating autoimmunity

Researchers have discovered that ROCK2 protein is involved in regulating the production of IL-17 and IL-21, which are linked to autoimmunity. Administration of a ROCK inhibitor has shown promise in reducing disease symptoms and ameliorating conditions in mice models.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateAug 9, 2010

Constant overlap

Scientists at EMBL identified two proteins, PRC1 and kinesin-4, that control the formation and size of microtubule overlaps in the spindle. This adaptive mechanism ensures the overlap remains constant without affecting microtubules elsewhere in the cell.

Disrupting male fertility

Researchers have identified a molecular mechanism underlying the harmful effects of DES on male testis development and function. Neonatal exposure to DES leads to reduced fertility in mice, with NR0B2 deficiency protecting against these effects.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 2, 2009

Mechanisms of memory identified

Researchers from the University of Bristol have identified a key molecular mechanism controlling synaptic plasticity, which is vital for visual recognition memory and learning. Blocking this mechanism prevents visual recognition memory in rats, demonstrating its importance in brain function.

SourceUniversity of Bristol·JournalNeuron·DateApr 23, 2008

Researchers uncover new mechanism of tumor suppressor

Researchers at Stanford University have uncovered a novel mechanism of the tumor suppressor ING2, which regulates gene expression programs to prevent cancer formation. The findings highlight a new approach to understanding DNA damage responses in normal cells and potential therapeutic targets for cancer prevention and treatment.

SourceStanford University·JournalNature·DateMay 21, 2006