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Unveiling the mysteries of cell division in embryos with timelapse photography

Researchers used medaka fish, CRISPR and new imaging techniques to study embryonic mitosis. They discovered unique spindles assemble in early embryos and found Ran-GTP plays a decisive role in spindle formation, which diminishes later in development. The study paves the way for further exploration of embryonic mitosis.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalNature Communications·TypeImaging analysis·DateApr 24, 2024

Sting operation out of gas

Researchers question whether micronuclei activate the cGAS-STING pathway, a key innate immune response to foreign nucleic acids. The study found that MN more commonly recognizes DNA during cell division without triggering STING activation.

SourceKyoto University·JournalLife Science Alliance·TypeExperimental study·DateMar 11, 2024

A clutch stretch goes a long way

Researchers at Kyoto University have observed a unique phenomenon where talin constantly moves over focal adhesions as a single unit, contradicting prevailing notions. This discovery reveals that talin manages to simultaneously maintain the intercellular connection while transmitting force through dynamic molecular stretching.

SourceKyoto University·JournalNature Communications·TypeExperimental study·DateFeb 1, 2024

Cells of the future: A key to reprogramming cell identities

Researchers at Helmholtz Munich have discovered a new relationship between DNA replication timing and cellular plasticity, allowing for the potential reprogramming of cells. The study found that the three-dimensional structure of the genome influences the flexibility of the replication timing program.

New study reveals molecular causes of rare neurological condition in children

A new study has uncovered the molecular causes of a rare developmental brain condition in children, known as Autosomal Recessive ACBD6-related disorder. The research team identified defects in the acyl-CoA-binding domain-containing protein 6 (ACBD6) gene as the underlying cause, leading to delays in cognitive and motor skills development.

SourceUniversity of Portsmouth·JournalBrain·TypeExperimental study·DateNov 16, 2023

Researchers construct first “multiome” atlas of cell development in the human cerebral cortex from before birth to adulthood

Researchers created the first 'multiome' atlas of brain cell development in the human cerebral cortex, revealing specific changes in chromatin structure that precede gene expression. The study pinpointed regions associated with genes linked to neuropsychiatric disorders like schizophrenia and bipolar disorder.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalScience Advances·TypeImaging analysis·DateOct 12, 2023

Cell atlases of the human brain presented in Science

Two parallel projects publish detailed cell atlases of the adult human brain and brain development, revealing over 3,000 cell types, including new insights into brain diseases and potential therapeutic targets. The freely available brain atlases will enable researchers to compare healthy brains with diseased ones.

SourceKarolinska Institutet·JournalScience·TypeExperimental study·DateOct 12, 2023

How neurons compete to lose their link

The study reveals that spontaneous waves of neurotransmitter glutamate facilitate dendrite pruning, while a unique protection/punishment machinery strengthens certain connections and eliminates others. Proper pruning is critical for neural development, with insufficient or excessive connections linked to neurophysiological disorders.

SourceKyushu University·JournalDevelopmental Cell·TypeExperimental study·DateJun 7, 2023

Researchers overcome stem cell delivery barrier, paving the way for regenerative medicine

Scientists have developed a new method to deliver genetic information to stem cells using nanoparticles coated with a specific polymer, enabling more efficient control over cellular differentiation. This innovation has the potential to improve the efficiency and effectiveness of regenerative medicine treatments.

SourceXi'an Jiaotong-Liverpool University·JournalNano Letters·TypeExperimental study·DateMay 8, 2023

The Mathematics of Cell Boundary 'Ruggedness'

The study, led by Professor Takashi Miura of Kyushu University, has discovered that interdigitated cell boundaries have a mathematically scaling pattern with self-similarity. The team used the Edwards-Wilkinson model to simulate and understand the molecular mechanism responsible for these dynamics.

SourceKyushu University·JournaliScience·TypeExperimental study·DateApr 21, 2023

Nerve cell discovery may lead to better treatment for diseases of the nervous system

Scientists at King's College London and the University of Bath have made a groundbreaking discovery about a molecule that plays a crucial role in nerve cell development. The study found that this molecule, known as SNRNP70, is not only present in the nucleus but also in the cytoplasm of nerve cells, where it shapes messenger RNA strand...

SourceUniversity of Bath·JournalCurrent Biology·TypeExperimental study·DateNov 15, 2022

Two hits to the mitochondria causes severe anemia

A study found that impairing mitochondria in two different ways can cause severe anemia. Researchers used mouse models to investigate the role of mitochondria in blood cell differentiation and found that disrupting mitochondrial function and dynamics causes anemia through distinct mechanisms.

SourceUniversity of Tsukuba·JournalPharmacological Research·DateOct 17, 2022

The October issue of SLAS Technology highlights an experimental device for generating temperature gradients on a microtiter plate

A new experimental device has been developed to generate temperature gradients on a microtiter plate, allowing for the simultaneous testing of different temperatures. This innovation solves a common challenge in biological studies of living cells, unlocking new possibilities for studying cellular growth and development.

Paused at the right moment

A team of scientists has identified a key protein involved in regulating the second arrest in meiosis II, allowing the matured egg to await fertilization. Cyclin B3 keeps the availability of Emi2 below a critical threshold during the first maturation division, preventing premature arrest.

SourceUniversity of Konstanz·JournalDevelopmental Cell·DateOct 11, 2022

An unstable, flake-like network in the making

A team of researchers from MPI-CBG discovered that thousands of short-lived droplet-like condensates made up of actin filaments generate a first cortex in C. elegans after fertilization. This finding provides new insights into the formation and control of subcellular structures, crucial for cellular and developmental processes.

Liver cancer’s supercharged metabolism offers a new treatment strategy, Penn study suggests

Researchers discovered that liver cancer cells modify their metabolism to leave them susceptible to disruptions in arginine supply, a key molecule. A three-pronged approach targeting tumor metabolism, blocking survival-promoting responses, and starving tumors of arginine can induce senescence, making cancer cells killable.

SourceUniversity of Pennsylvania School of Medicine·JournalCell Metabolism·TypeExperimental study·DateAug 2, 2022

How CAMSAP2 proteins organize microtubule networks

Researchers discovered that CAMSAP2 proteins utilize phase separation to form an 'aster' structure, which then organizes into a microtubule network. This process is crucial for the formation of specialized cell shapes, such as those found in heart muscle and nerve cells.

SourceKobe University·JournaleLife·TypeExperimental study·DateAug 2, 2022

LSU Health New Orleans develops new human cell line to study blinding eye disorders

The new human cell line, ABC, was developed from retinal pigment epithelial cells and retains their properties, allowing for the study of events relevant to normal repair processes. The research may lead to discoveries in senescence gene programming, neuroprotection, and cellular replacement therapies for blinding eye diseases

SourceLouisiana State University Health Sciences Center·JournalFrontiers in Neuroscience·TypeExperimental study·DateJul 12, 2022