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How cell nuclei squeeze into tight spaces

Fascin protein plays a crucial role in deforming the cell nucleus to navigate through tight spaces. The study suggests that this ability may be exploited by cancer cells to invade tissues, making fascin a potential target for therapy.

SourceCell Press·JournalDevelopmental Cell·DateAug 22, 2016

Cells' steering wheel

Researchers at IBS find PLEKHG3 plays a crucial role in cell polarity and migration, allowing fibroblasts to move faster. The discovery can benefit fields like cancer, immunology, and neurological research.

SourceInstitute for Basic Science·JournalProceedings of the National Academy of Sciences·DateAug 22, 2016

Biophysics: Partitioning by collision

Researchers have found that mixtures of equally sized particles in solution will demix, or sort themselves, if they differ in their diffusion constants. This phenomenon, known as the Brazil Nut effect, was simulated and explained by a theoretical model, showing that random particle motions play a key role in the process.

SourceLudwig-Maximilians-Universität München·JournalPhysical Review Letters·DateFeb 5, 2016

Physical parameters matter in terms of cancer cells' metastatic ability

A recent study found that the presence of Epidermal Growth Factor (EGF) promotes the motility of elongated mesenchymal tumour cells in breast cancer cells, which migrate along collagen fibres. This increased persistence and moderate speed suggests that EGF contributes to modulating the mobility of tumour cells.

SourceSpringer·JournalThe European Physical Journal Plus·DateFeb 1, 2016

Breakthrough in 'marriage-broker' protein

Scientists at McGill University have made a breakthrough in understanding the role of Netrin1, a protein that brings cells together and maintains their healthy relationships. The study used genetic technology to remove all Netrin1 from mouse embryos, revealing a greater disruption of the nervous system than previously thought.

SourceMcGill University·JournalCell Reports·DateAug 12, 2015

Sculpting a cell's backside

Researchers discovered a new protein, Callipygian, which aids in cell migration by shutting off proteins at the front edge of cells. The protein helps create the back of a cell, allowing it to move directionally.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateJul 7, 2015

Cytoskeletons shaking hands

Researchers at the University of Helsinki discovered that cytoplasmic intermediate filaments interact with specific contractile actin filament structures called arcs, which transport intermediate filaments towards the nucleus. Disruption of these interactions leads to defects in cell morphogenesis and shape abnormalities.

SourceUniversity of Helsinki·JournalCell Reports·DateJun 3, 2015

Identified the mechanism that controls localization of protein Rac1 in the cell nucleus

Researchers at CNIC identified the molecular mechanism regulating transport of Rac1 between nucleus and cytoplasm. Sustained presence of Rac1 in nucleus promotes nuclear deformation to facilitate cell migration through confined spaces. The study provides potential targets for future therapies.

Inner workings of a cellular nanomotor revealed

The discovery sheds light on how SecA pushes proteins out of the cell through a series of mechanical steps. This understanding is crucial for developing specific antibiotics and optimizing biotechnological production of human biopharmaceuticals.

SourceKU Leuven·JournalMolecular Cell·DateFeb 5, 2014

Self-perpetuating signals may drive tumor cells to spread

A team of international researchers has identified a self-perpetuating signaling circuit in connective tissue cells that allows them to form a front and back and propel themselves in a particular direction. This propulsion is similar to the movement used by tumor cells to invade healthy tissue during cancer metastasis.

SourceJohns Hopkins Medicine·JournalMolecular Biology of the Cell·DateJul 16, 2013

Moving cells with light holds medical promise

Researchers at WashU Medicine successfully manipulate immune cells using light to move them towards a beam of light, holding potential for controlling insulin secretion or heart rate. The study uses genetic engineering techniques to introduce a light-sensitive protein into immune cells, enabling them to sense and respond to light signals.

SourceWashU Medicine·JournalProceedings of the National Academy of Sciences·DateApr 8, 2013

New insights into the development of the heart

Studies on zebrafish embryos reveal that the protein Nodal triggers a signaling cascade, allowing cardiac progenitor cells to migrate faster and form an asymmetric heart. The research also shows that another signaling molecule, Bmp, reduces cell migration on the left side of the heart.

SourceHelmholtz Association·JournalDevelopmental Cell·DateMar 26, 2013

Asterix's Roman foes -- Researchers have a better idea of how cancer cells move and grow

Scientists at the University of Montreal's IRIC have identified a key mechanism that enables cancer cells to coordinate their movement, allowing them to disseminate efficiently in the body. By understanding this mechanism, researchers hope to develop molecular targets to disrupt collective cell migration and fight metastasis formation.

SourceUniversity of Montreal·JournalNature Cell Biology·DateMar 12, 2013

Hit by 2 hammers

Researchers identify new gene associated with Hirschprung Disease and demonstrate how deficiencies in two candidate genes synergize to halt gut nervous system formation. Understanding this genetic basis may lead to better diagnostics and treatment for the condition.

SourceStowers Institute for Medical Research·JournalHuman Molecular Genetics·DateJan 30, 2013

Spread of cancer cells may be slowed by targeting of protein

Researchers at Penn State College of Medicine found that targeting km23-1, a motor protein involved in cell migration, can slow the spread of cancer cells. By inhibiting km23-1, cancer therapies may be developed to prevent tumor cells from migrating to other parts of the body.

SourcePenn State·JournalBiochemical and Biophysical Research Communications·DateDec 18, 2012

Team solves birth and migration mysteries of cortex's powerful inhibitors, 'chandelier' cells

A team led by Professor Z. Josh Huang has revealed the birth timing and embryonic origin of critical inhibitory brain cells called chandelier cells, tracing their specific paths into the cerebral cortex of mouse brains. This breakthrough sheds light on the genetic programming of brain development and the role of these cells in balancin...

SourceCold Spring Harbor Laboratory·JournalScience·DateNov 22, 2012

Moving targets

Researchers at Caltech used Caenorhabditis elegans to study cell migration, identifying genes that are active during this process. These findings may lead to the development of new drugs that block cell migration, which is linked to tumor formation and metastatic cancer.

SourceCalifornia Institute of Technology·JournalProceedings of the National Academy of Sciences·DateSep 20, 2012

Self-forming biological scaffolding

A new model system explores how cells' functional structures assemble through self-organisation. The study reveals that actin filaments, held together by cross-linking proteins and molecular motors, can rapidly compact into highly ordered fibres.

SourceSpringer·JournalThe European Physical Journal E·DateSep 19, 2012

On the move

Researchers at the Stowers Institute for Medical Research found that the Arp2/3 complex is essential for forming lamellipodia, which are crucial for cell migration. The study used genetic disruption to investigate the function of Arp2/3 in fibroblast cell motility.

SourceStowers Institute for Medical Research·JournalJournal of Cell Biology·DateApr 9, 2012

Frontal attack or stealth?

Research reveals that bacteria can cause disease through frontal attack or stealthy manipulation of the host's immune system. Bacteria that destroy phagocytes have low infectivity, while those with high growth rates and quorum-sensing capabilities are more infectious.

SourceInstituto Gulbenkian de Ciencia·JournalPLOS Pathogens·DateFeb 27, 2012