Articles tagged with Cell Nuclei
Researchers have discovered that stress hormones can silence crucial neuronal genes by interacting with long noncoding RNAs and the polycomb repressive complex 2. This mechanism may provide a new understanding of how stress affects gene expression, particularly in relation to synaptic function and calcium signaling.
A study on Aspergillus oryzae found that increased cell volume and nuclear number contribute to its high enzyme production capacity. The fungus's hyphae thicken, resulting in a tenfold increase in cell volume, while the number of nuclei per hyphal cell also rises tenfold.
A recent study published in Nature Communications reveals that the nucleus is less dense than the surrounding cytoplasm, despite its rich biomolecular composition. The researchers used light to probe density at microscales and found a consistent nuclear-to-cytoplasmic density ratio across eukaryotes.
Scientists have discovered that MYOD protein can act as a gene silencer, clearing out old 'furniture' to reset the cell's identity. This finding challenges dogma and opens up new avenues for understanding cellular reprogramming and regenerative medicine therapies.
Researchers at the University of Bonn have developed an optical CRISPR screening method called NIS-Seq that allows for the identification of key genes involved in biological processes. This method is faster and more efficient than traditional methods, working in almost all cells and providing results in a matter of days.
Researchers used two specialized microscopes to measure the forces that keep the nucleus centered within a living cell, providing new clues about cellular cytoplasm and organelle motion. The study found that the force required to move the nucleus in C. elegans was approximately 1/6th less than that measured in sea urchin eggs.
A team of researchers has successfully created the first artificial cell nuclei in living mouse eggs by injecting purified DNA, revealing key mechanisms behind nucleus formation. The study provides crucial insights into nuclear function and structure, with potential applications in reviving extinct animals and creating artificial life.
LMU researchers investigated how cell nuclei change shape to migrate through tight spaces, revealing reversible nuclear deformation and adaptation of pulling and pushing forces. The study suggests a biphasic dependence of migration speed on channel width, with maximal transition rates at widths comparable to the nuclear diameter.
Researchers discovered that nuclei pack strongly, ordering cells into crystalline arrays, and control tissue stiffness. The study challenges the status quo, revealing a new role for nuclei in organ formation.
The Campos Lab will investigate how human papillomavirus moves from lower epithelial cells to the upper layers and into the nucleus, where it hijacks the cell to make copies of itself. By understanding this process, researchers hope to shed light on cell division and viral transmission.
Researchers have developed a new technique that provides a previously unattainable view of the mechanical properties inside the cell nucleus. The study reveals the peculiar dynamic structural features in living cells, which appear to be crucial for cell function.
Scientists at Max Planck Institute discovered that paternal chloroplasts can be transmitted to offspring under cold conditions, allowing for selective breeding of traits from genetic material. This finding may enable plant breeders to use chloroplast genes in new ways.
A new biopsy procedure is developed with a multispectral confocal endomicroscope to aid in lung tissue imaging. The system allows for simultaneous imaging of multiple fluorescent dyes, enabling unique identification and spectral unmixing.
Researchers from Tokyo Medical and Dental University found that PQBP5/NOL10 is a core structural element of the nucleolus, forming a meshwork that supports other nucleolar substructures. It remains in the nucleolus under osmotic stress conditions and anchors reassembly of the nucleolar structure.
Researchers investigated Aicardi-Goutières syndrome and found that viral RNA recognition drives uncontrolled interferon production. The immune system mistakenly attacks healthy cells due to the failure of safety mechanisms to distinguish between viral and host genetic material.
A team of researchers from Kumamoto University has developed a transformable polyrotaxane carrier that can facilitate genome editing using Cas9RNP with high efficiency. The carrier, called amino-PRX, is multi-step transformable and has low cytotoxicity, making it an enormously promising candidate for safe and efficient delivery.
A team of scientists has discovered that the enzyme DNA topoisomerase VI plays a critical role in removing chromosome tangles in plants, which may lead to new antimalarial drug targets. The study provides unprecedented insight into the mechanism of action of this enzyme and its potential applications in plant breeding.
Computational biologists at Carnegie Mellon University have developed a new algorithm, MOCHI, to identify communities within the cell nucleus. The algorithm uses spatial arrangement and genetic interactions to subdivide interwoven nuclear components into groups.
Scientists at the University of Bonn have developed a new method to study the structure of long ribonucleic acids, which are crucial for cellular regulation. The technique involves marking specific locations on the RNA with artificial flags and measuring their distances using a molecular ruler.
Scientists have discovered that microRNAs play a crucial role in regulating genes in cell nuclei, not just cytoplasm. MicroRNAs targeting the nucleus can increase gene expression, offering a novel approach to gene therapy.
Researchers at TU Munich and Weizmann Institute successfully recreated DNA condensation on a biochip, replicating the tightly packed structure found in cell nuclei and viruses. This breakthrough enables better understanding of biological processes and potential applications in artificial cells.
Researchers discovered a UV-B receptor that activates proteins to build defense mechanisms, allowing plants to tolerate harmful UV-B rays. Plants also use UV-B rays to influence growth and development, making them essential for survival.
Researchers at the Technical University of Munich have discovered that broccoli's sulforaphane can reduce progerin accumulation and DNA damage in HGPS cells. The study suggests that this natural compound could be a potential therapeutic approach for treating the disease.
Researchers found that an ancient protein-making enzyme, TyrRS, has a second major function: protecting DNA during cellular stress. This discovery could lead to better therapies for radiation injuries and hereditary disorders like Charcot-Marie-Tooth disease.
A team of scientists has discovered Rad50's crucial role in detecting and responding to foreign DNA from viruses. The protein interacts with a specific signal protein CARD9, forming a complex that activates the immune system's alarm mechanism, leading to the production of interleukin-1β.
Researchers have discovered that gateways in the nucleus control chromosome structure and gene expression, impacting disease triggers.
Researchers found that chloroplast genes can be directly transferred to the cell nucleus without involving RNA, allowing for correct reading and functional proteins. The discovery resolves a long-standing evolutionary mystery and provides new insights into gene transfer mechanisms.
Researchers at UC San Diego School of Medicine discovered that non-coding RNAs TUG1 and NEAT2 relocate genes to activate their function in response to growth signals. This process provides a new understanding of the interaction between regulated genes and human diseases.
A new study by Imperial College London researchers reveals that parts of the cell nucleus are not arranged randomly, but follow a predictable pattern. The discovery provides valuable insights into how cells work and could eventually lead to a better understanding of cancer.
Scientists have found that retinoic acid, a cancer-fighting vitamin A derivative, enters a cell's nucleus via protein CRABP-II by exposing positive charges on its amino acids. This discovery could lead to new treatments for various diseases, including leukemia and breast cancer.