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HKUST-led research reveals a novel molecular mechanism that regulates secretion of sonic hedgehog, shedding light on cancer treatments

A novel SURF4-to-proteoglycan relay mechanism regulates the secretion of sonic hedgehog (Shh), a key signaling molecule in cancer progression. The study offers new insights into inhibiting Shh secretion and shutting down the Hh signaling pathway to hinder cancer progression.

SourceHong Kong University of Science and Technology·JournalProceedings of the National Academy of Sciences·DateMay 7, 2022

Where the mind is without fear: Scientists discover mechanism behind the chemically induced suppression of fearful memories

Researchers at Tokyo University of Science identify brain regions and signaling pathways involved in fear extinction via delta receptor activation. The study suggests a potential therapeutic agent for post-traumatic stress disorders by suppressing fearful memories.

SourceTokyo University of Science·JournalFrontiers in Behavioral Neuroscience·TypeExperimental study·DateApr 25, 2022

Researchers find natural mechanism to sensitize cancer to immunotherapy

A U-M study defines how a cytokine and fatty acid combination triggers ferroptosis, a type of cell death previously studied with synthetic molecules. This natural mechanism could make immunotherapy treatments more effective, particularly for cancers where the treatments currently work for only about 30% of patients.

SourceMichigan Medicine - University of Michigan·JournalCancer Cell·TypeExperimental study·DateMar 4, 2022

Biased signalling for better drugs

Researchers at PSI have developed a platform to measure biased signalling in G protein-coupled receptors (GPCRs), enabling selective therapeutic effects and fewer side effects. By testing specially designed bivalent ligands, they can bias signalling towards desired pathways.

SourcePaul Scherrer Institute·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateDec 15, 2021

Centriole instability might contribute to some cases of microcephaly

Researchers at IRB Barcelona have identified γTuRC as a centriole stabilizer, revealing its role in maintaining centriole stability and preventing microcephaly. The study's findings suggest that defects in γTuRC may contribute to various human diseases, including adolescent scoliosis and male infertility.

SourceInstitute for Research in Biomedicine (IRB Barcelona)·JournalNature Communications·TypeExperimental study·DateNov 1, 2021

Disease genes help developing brains

Scientists have identified two new candidate genes, ULK4 and PTTG1, that positively influence the development of an embryo by restoring a strong Sonic Hedgehog signaling pathway. This finding provides new insights into the causes of holoprosencephaly, a congenital malformation affecting around one to four in every 1,000 unborns.

Study identifies molecule that stimulates muscle-building in humans

Researchers found that consuming dileucine enhances the metabolic processes driving muscle growth, resulting in a 42% increase in protein synthesis. In contrast, leucine alone showed no significant impact on protein breakdown, highlighting the molecule's potential as a signaling agent for muscle-building pathways.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Applied Physiology·TypeRandomized controlled/clinical trial·DateAug 9, 2021

Chemical signal in plants reduces growth processes in favor of defense

Researchers found that beta-cyclocitral produced by plants after herbivore attack increases defense responses and inhibits the production of metabolites for growth in Arabidopsis thaliana. This volatile signal opens up new possibilities for developing herbicides or antimicrobial agents that block the methylerythritol 4-phosphate pathway.

SourceMax Planck Institute for Chemical Ecology·JournalProceedings of the National Academy of Sciences·DateMar 9, 2021

Signal transduction in cells: Precise or economical?

Researchers at Max-Planck Institute for Terrestrial Microbiology study signal transmission in baker's yeast to understand how cells balance information accuracy with energy costs. They found that the pheromone signalling pathway contains negative feedback regulations that improve accuracy, but may also impose fitness costs.

SourceMax-Planck-Gesellschaft·JournalNature Communications·DateJul 19, 2020

Study redefines exi'STING' dogma of inflammatory mechanism

Researchers at Monash University have discovered the mechanism behind one of two signalling arms involved in the cGAS-STING pathway. The findings reveal that a closely related TBK1 homologue, IKK-epsilon, plays a crucial role in cytokine production, leading to new understanding of autoimmune diseases and cancer treatment.

SourceMonash University·JournalCell Reports·DateApr 7, 2020

All roads lead to migraine

A recent study published in Cephalalgia found that calcitonin gene-related peptide (CGRP) and sildenafil both provoke migraine attacks in patients, with no differences in clinical characteristics. The study suggests that these drugs may act through a single molecular pathway, offering potential for new preventive therapeutics.

SourceInternational Headache Society·JournalCephalalgia·DateDec 16, 2019

Perturbed genes regulating white blood cells linked to autism genetics and severity

Researchers identified a critical gene network disrupted in autism spectrum disorder (ASD) that correlates with symptom severity. The findings suggest genetic factors influencing brain development during pregnancy are primary causes of ASD, providing potential biomarkers for early diagnosis and prediction of symptom severity.

SourceUniversity of California - San Diego·JournalNature Neuroscience·DateSep 23, 2019

Resetting balance in reward centers may help treat alcohol addiction

A new study in Biological Psychiatry reports that altering the balance of two pathways in the dorsal striatum, a brain region critical for goal-directed behavior, can help control alcohol consumption. The study found that suppressing the activity of the No-Go pathway and exciting the Go pathway promotes alcohol drinking behavior.

SourceElsevier·JournalBiological Psychiatry·DateMay 25, 2017

How to reset a diseased cell

Scientists at University of California, San Diego School of Medicine demonstrate ability to reprogram large parts of a cell's signaling network by manipulating key hub in communication networks. This approach shows potential to slow or reverse disease progression, including cancer driven by abnormal cell signaling.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateMay 1, 2015