Scientists at Yale University propose a new explanation for cancer metastasis, suggesting that the fusion of a cancer cell with a white blood cell is the key to its spread. This theory has been validated in mouse studies and could lead to new therapeutic approaches.
A team of scientists at the Joslin Diabetes Center has identified a key regulator of hematopoietic stem cell migration and proliferation, which could lead to improved bone marrow and blood cell transplants. The discovery also holds promise for treating type 1 diabetes and enhancing recovery from infections after transplantation.
Researchers at the University of Pennsylvania School of Medicine have found that juvenile cells on their way to becoming mature immune cells can develop into either T cells or other blood-cell types. This challenges the currently accepted model of T-cell development, which suggests that these cells are committed to the T-cell path from...
The study reveals that the switch is bistable, maintaining its on state even without external signals, and provides clues for novel drug targets for cancer and other diseases. The findings have implications for understanding cell fate decisions and the process of cell death.
A new stem cell technique has been developed by UC Irvine researchers, which blends two existing methods to improve cell survival rates and increase the efficiency of inserting DNA into cells. This approach is up to 100 times more efficient than current methods at producing human embryonic stem cells with desired genetic alterations.
Researchers at University of York characterize mechanism used by bacteria to evade the human immune system, using an 'invisibility cloak' to move about the body without risk of attack. The discovery of a novel enzyme and its role in capturing sialic acid offers hope for developing novel antimicrobials against these bacteria.
The American Society for Cell Biology (ASCB) is launching a program to support young researcher parents, providing $18,000 'New Scholars' grants to cover childcare expenses during the Annual Meeting. This initiative aims to increase women's participation in science and address family care issues as a barrier to career development.
Researchers have discovered a crucial role for heparan sulfate in regulating embryonic stem cell potency, while also uncovering the mechanism behind SARS lung damage. The structures of key enzymes involved in these processes are now understood, opening up new avenues for treatment and drug development.
Researchers created a mathematical model of bacterial cell division in Caulobacter crescentus, confirming existing hypotheses and identifying gaps in understanding. The model demonstrates the role of computation in biology and provides a framework for testing predictions and simulating mutant bacteria.
Researchers, led by Dr. Quansheng Du, are studying the complex process of cell division to understand how it can be targeted for cancer therapy. They focus on the mitotic spindle and its role in asymmetric cell division, which may lead to the development of cancer stem cells.
A new study found that daily pain is far more prevalent and severe than previously thought in adults with sickle cell disease. Over half of the patients reported having pain on most days, with nearly one-third experiencing pain nearly every day.
Researchers studied yeast cells to understand actin network regulation, which is crucial for cell movement. The study found that Arp2/3 regulatory proteins have distinct roles in actin assembly and endocytosis, shedding light on the immune system's ability to target disease-causing invaders and cancer cells' migration.
A team of biologists has developed a model mapping the control circuit governing a whole free-living organism, allowing for accurate prediction of cell dynamics and adaptation to environmental stresses. The study, based on Halobacterium salinarum, provides insights into how cells make stable decisions in response to their environments.
Researchers have made significant progress in cardiac stem cell therapy, exploring novel delivery methods and strategies to improve cell survival. These advancements aim to overcome the challenges of poor vascular supply and inflammation after a heart attack, paving the way for more effective treatments.
Researchers at UMass Medical School discovered a complex pathway that allows cells to survive and die through autophagy, a process previously misunderstood. The study sheds light on the relationship between autophagy and cell death, with potential implications for cancer, Alzheimer's, and Parkinson's treatments.
Researchers at Yale University discovered how molecular muscles assemble a 'contractile ring' to divide cells, using a 'search, capture, pull and release' mechanism. The mechanism involves protein clusters on the inside of the cell membrane that grow and connect, forming a condensed ring.
Researchers at Stanford University School of Medicine have isolated a human blood cell called the multipotent progenitor, which is thought to be the great-grandparent of all cells in the blood. This finding could lead to new treatments for blood cancers and other blood diseases.
Researchers at University of Alabama at Birmingham discovered a key cell-signaling pathway regulating cell growth and patterning in tadpoles. The study found that modification of histone protein H2A influences normal cell pathways and cell growth.
Researchers at EMBL used a novel microscopy technique to observe the interplay of signalling molecules in living yeast cells. They found that the actual signal is not produced uniformly throughout the cell but only by specific chain components in the mating projection.
The University of Leeds is partnering with Dr Tony Marchington's M2 Ventures to offer outsourced research and development in membrane biology to industries. Membrane biology research plays a crucial role in developing pharmaceutical drugs, and the partnership aims to capitalize on this expertise.
The new journal Stem Cell Research will cover all aspects of stem cell research, including embryonic stem cells, cancer stem cells, and developmental studies. It aims to disseminate the results of ongoing research in this rapidly expanding field, with a focus on high-quality peer-reviewed studies.
Researchers at Cornell University found that ion channels in membrane-bound vesicles do not carry charged neurotransmitters out of the cell. Instead, positive sodium ions from the outside compensate for the charge, a process known as electrodiffusion.
Researchers found that PAX5 stimulates the growth of cancerous tumors by spurring cell division normally observed during B cell immune response. This leads to over-expression of key molecules comprising B cell receptor, driving B cell expansion.
A novel 3D cell culture model has been developed to study the selective uptake of nanoparticles in brain tumors. The model uses a combination of tumor aggregates and normal brain tissue slices, allowing researchers to investigate tumor cell invasion into brain tissue.
A team of scientists from EMBL has uncovered the assembly mechanism of a bipolar spindle in oocytes, allowing them to accurately separate chromosomes. This process is crucial for proper egg development and fertilization.
Eight scientists and one politician have been recognized by ASBMB for their groundbreaking work, advancing the field of biochemistry and molecular biology. The awards will be presented at Experimental Biology 2008 meeting in San Diego.
New discoveries in ACS Chemical Biology highlight the potential for snail toxins to lead to new drugs, as well as strategies to minimize the side effects of COX inhibitors. The journal also explores how sex hormones activate cell signaling pathways, and helper peptides influence calcium channel opening.
Researchers used genetic analysis to determine the origin of a widely disputed stem cell line. The study found that the cell line was derived from a parthenogenetic embryo, not somatic nuclear transfer as previously claimed.
Researchers at Forsyth Institute have identified a novel mechanism controlling adult stem cells, highlighting the importance of direct cell-to-cell communication. The study's findings suggest that gap junctions play a critical role in regulating stem cell behavior and tissue regeneration.
A trio of enzymes regulates cell size in bacteria by sensing nutrient availability, with disruptions leading to defects in chromosome segregation. This discovery sheds light on the mechanisms behind uncontrolled growth in cancer cells.
Scientists from leading institutions worldwide issue a statement highlighting the critical importance of synthetic biology, citing its potential to solve eco-safe energy issues, outbreaks of malaria, and more. The Ilulissat Statement emphasizes the need for an international effort to advance research while developing protective measures.
Researchers at Vanderbilt University Medical Center discovered that the Golgi apparatus is a novel source of microtubules in cells, which are crucial for cell movement and division. This finding could lead to new insights into cancer cell invasion and treatment strategies.
Chromosome condensation, essential for successful cell division, begins early but continues late, acting as a safety net against separation defects. The EMBL researchers discovered that an enzyme called Aurora kinase is crucially involved in this process.
Researchers successfully induced pluripotent cells from fibroblasts using four transcription factors, exhibiting properties similar to embryonic stem cells. These findings have significant implications for regenerative medicine and may pave the way for generating patient-specific stem cell lines directly from a person's own cells.
Scientists at EMBL discovered that microtubule interactions with the cell cortex drive asymmetric cell division in nematode worms. The study reveals a pulling force generated by cortical filaments, which could apply to other organisms and contexts such as stem cell renewal.
A recent study published in Cell Stem Cell found that nearly half of couples who underwent in vitro fertilization (IVF) chose to donate their surplus embryos for stem cell research. The key factor was a clear explanation of the options, which helped couples navigate the legal situation and address concerns about donation.
The journal reveals how changing protein charges enables cell membrane passage and introduces an enzyme's role in synthesizing antibiotics against resistant bacteria. Additionally, researchers develop artificial methods to induce keratinocytes' differentiation, providing insight into diseases like psoriasis and basal cell carcinoma.
The St. Jude study found that cells shift their biochemical activities to conserve energy by increasing glucose production and recycling CoA, a key player in metabolism. The researchers also showed that PanK controls the concentration of CoA in specific locations within the cell.
Research by Nicholas Foulkes and colleagues found that peripheral clocks require cortisol to generate daily rhythms of cell proliferation. Constant levels of cortisol can restore normal cell-division rhythms in cortisol-deficient strains.
Scientists have developed a deconvolution algorithm that improves the resolution of Single Plane Illumination Microscope (SPIM) images. This advancement provides new opportunities for studying sub-cellular processes in large living specimens.
Researchers at NIST created a microelectromechanical system (MEMS) cell-stretcher to measure living cell mechanical properties like adhesion and elasticity. The device can study bulk mechanical properties of single cells while they spread and adhere to substrates.
Researchers identified 50 genes that interfere with genetic activities of genes causing uncontrolled cell division. These genes work by producing proteins that directly attach to cell-division genes, hindering their activity.
A new study published in PLoS Biology found that cells change size and shape to form the heart's chambers, with blood flow and cardiac contractility influencing cell shape. The researchers propose a balance of internal and external forces necessary for optimal chamber curvature, potentially underlying some types of heart disease.
Researchers developed a small-molecule inhibitor of Plk1, a key kinase controlling cell division. The compound BI 2536 effectively halts cancerous cell growth in culture and in animal models, causing cell death and tumor regression. This discovery has therapeutic potential for patients with locally advanced or metastatic cancers.
Researchers at Brown University have identified GABP as a critical transcription factor that restarts cell division, a process fundamental to development, renewal, and cancer growth. Disrupting GABP may lead to new cancer treatments.
Researchers at Virginia Tech have developed models and algorithms that enable the simulation of cell division using the university's System X supercomputer. By characterizing protein interactions regulating the cell cycle, they aim to understand reproduction in human cells and combat cancer, tissue regeneration, and pathogens.
Researchers found that the p53 gene's ability to direct a damaged cell to stop growing or commit suicide depends on turning on separate groups of target genes. Alterations in an amino acid, lysine 120, can influence this decision, potentially leading to new strategies in chemotherapy drug development.
Joel Rosenbaum's research has made significant advances in understanding the assembly, maintenance and function of cilia and flagella, leading to a deeper understanding of polycystic kidney disease (PKD). His work has also revealed the importance of primary non-motile cilia in signaling pathways.
Biochemistry and Molecular Biology Education journal is published by Wiley, featuring innovative teaching techniques, research, and reviews of biochemical knowledge. The journal aims to promote quality education in the field, supported by IUBMB.
A Rutgers-led group has been awarded a $2.55 million grant to develop instructional materials that integrate mathematics and biology in high school courses. The project aims to close the gap between math and biology instruction by creating modules that address key topics such as gene mapping, population trends, and public health.
Researchers discovered that the cell cycle's temporal regulation evolves rapidly, with changes occurring every 100 million years. This fast evolution is unexpected for a fundamental process like cell division.
The EMBL/CRG Research Unit will tackle challenging questions in systems biology through a combination of theoretical and experimental approaches. The unit will span from molecules to cells and work with various research techniques.
Researchers at Thomas Jefferson University have found that cyclin D1 inhibits the size and activity of mitochondria in cancer cells, shifting their metabolism from energy production to proliferation. This discovery may lead to new treatments targeting cancer cell metabolism.
The Tri-Institutional Stem Cell Initiative has approved $6.7 million in funding for 17 stem cell research projects, exploring basic biology and therapeutic potential of human and model organism-derived stem cells. The grants support collaborative research across three institutions, including Memorial Sloan-Kettering Cancer Center.
The University of Liverpool has secured a £2.5M investment to enhance its marine biology research and facilities, including a new mesocosm system and research vessel. This expansion will support the creation of seven new academic posts and introduce new undergraduate and postgraduate programmes.
The Salk Institute researchers created a cell-free system to study the insertion of nuclear pore complexes into the nuclear membrane. Using advanced imaging tools, they observed the formation of nuclear membranes and pores within an hour.
Researchers at UCSC discover that Hymenopteran insects create new centrosomes in unfertilized eggs using accessory nuclei. This process allows for the development of haploid males, which have half the number of chromosomes as females. The study sheds light on basic cell biology and the evolution of these social insects.
Scientists have successfully reversed cell division, a process essential to life, and may use this discovery to control cancer development and metastasis. The research holds promise for preventing and treating birth defects and other conditions.
Human embryonic stem cells (hESCs) can be grown using a simple mix called hESC cocktail, or HESCO, containing purified human factors. The recipe maintains normal cell chromosome profiles and supports differentiation into all three basic cell lineages.
A team of scientists led by Professor Jussi Taipale identified a set of genes contributing to cell growth and division in Drosophila melanogaster. The findings provide new insights into the regulation of cell growth, which is crucial for embryonic development and cancer