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Slipping a note to a neighbor: The cellular way

Researchers from PSI and ETH Zurich studied connexin-36 gap junction channels and found that antimalarial drug mefloquine binds to the channels, potentially explaining its severe side effects. The study provides new insights into how drugs interact with connexins and may lead to the development of therapies for neurological diseases.

SourcePaul Scherrer Institute·JournalCell Discovery·TypeExperimental study·DateJun 26, 2024

CityU neuroscientists discover a new drug candidate for treating epilepsy

A research team led by City University of Hong Kong neuroscientist Dr. Geoffrey Lau Chun-yue identified a new drug candidate, D4, that selectively blocks connexin hemichannels to suppress neuroinflammation and curbs TLE seizures in a mouse model. The findings suggest a promising new treatment strategy for epilepsy.

SourceCity University of Hong Kong·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateNov 23, 2022

VTCRI scientists identify novel cellular mechanism that can lead to cancer metastasis

Scientists at Virginia Tech Carilion Research Institute have identified a novel cellular mechanism that can lead to cancer metastasis. The researchers found that the formation of gap junction structures allowing cells to communicate was disrupted during epithelial mesenchymal transition (EMT), despite an abundance of connexin 43 proteins.

SourceVirginia Tech·JournalMolecular Biology of the Cell·DateMay 29, 2018

Heartbeat out of sync

Researchers developed a method to improve electrical transmission in the heart by introducing the Connexin 43 gene into cells forming the infarct scar. Mice with overexpressed Cx43 showed reduced cardiac arrhythmias compared to control animals.

SourceUniversity of Bonn·JournalScientific Reports·DateMay 8, 2018

Heart defects identified in progeria patients that increase the risk of arrhythmias and premature death

Progeria, a rare genetic disease, is characterized by an elevated risk of arrhythmias and premature death due to anomalies in the transmission of electrical signals in the heart. The study reveals that mislocalization of connexin 43 reduces connectivity between cardiomyocytes, increasing the risk of arrhythmias.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalProceedings of the National Academy of Sciences·DateNov 2, 2016

Discoveries in neuroscience

Brown University scientists discover a malaria drug that precisely blocks specific connexins in the brain and eye, which may help shed light on the cause of epilepsy and seizures. The breakthrough could also lead to new treatments for other neurological conditions.

SourceBrown University·JournalProceedings of the National Academy of Sciences·DateAug 6, 2004