Articles tagged with Hematopoiesis
Researchers at Pohang University of Science & Technology discovered a mechanism by which microbiota signals are transmitted to the entire body, controlling hematopoiesis in the bone marrow. This process involves CX3CR1+ mononuclear cells recognizing microbiota signals and releasing cytokines that stimulate the immune system.
A transient wave of hematopoietic stem cell production occurs in the bone marrow of late fetuses and young adults, produced from resident hemogenic endothelial cells. This discovery fills a gap in our understanding of hematopoiesis and has implications for regenerative medicine and the development of innovative stem cell therapies.
Researchers at Osaka University discovered Ragnase-1's crucial role in regulating hematopoietic stem and progenitor cells. The study reveals how Ragnase-1's post-transcriptional regulation maintains blood cell homeostasis, preventing excessive proliferation associated with leukemia.
Researchers discovered that HSPCs preferentially anchor at venous capillary confluence points guided by VCAM-1+ macrophages. This interaction helps regulate HSPC retention and expansion, providing new insights into the homing process.
A new technique detects mutations that affect large chunks of chromosomes in people with clonal hematopoiesis, a condition associated with substantially increased blood cancer risk. The study identified specific events that drive this increase in risk and suggests promising directions for future work.
The CNIC is leading a five-year Leducq Network project investigating genetic and environmental factors that promote clonal hematopoiesis and its link to cardiovascular disease. The project aims to understand the impact of clones on cardiovascular health and explore ways to modify their effects.
Researchers at Kanazawa University identified a molecule called Spred1 that supports blood-cell production during dietary stress. In contrast, Spred1 deficiency promotes HSC self-renewal and resistance to physiological stress, but also increases the risk of certain cancers.
The new edition includes quality management, reflecting the rapidly evolving field of bone marrow transplantation. The standards have been developed through international consensus and are recognized globally among transplantation professionals.
Researchers will develop microfluidic biomarker detection platforms to monitor human responses to space radiation, focusing on hematopoietic and gastrointestinal systems. The goal is to prevent or lessen negative effects of simulated space radiation on these tissues.
A single infusion of wildtype hematopoietic stem and progenitor cells into a mouse model of Friedreich's ataxia restored normal cellular functions, halted cellular damage, and improved mitochondrial function. This breakthrough suggests a potential therapeutic approach for the currently incurable disease.
Researchers found that hematopoietic stem cells can directly detect bacterial infections and begin dividing without signals from growth factors. This reaction damages the cells' regenerative ability, potentially leading to malignant diseases at advanced age.
Cell therapy is an emerging medical science focusing on innovative therapeutic approaches to treat blood diseases and infections. The EBMT Cellular Therapy and Immunobiology Working Party aims to foster cellular therapy in Europe by promoting exchanges, cooperation, and the development of new technologies.
Researchers at IRCM identified a protein called Miz-1 that controls the activity of p53 tumour suppressor protein, essential for developing immune cells. Without Miz-1, lymphocytes prematurely activate p53 and die, hindering the immune response.
Researchers found a link between natural killer cells and hematopoiesis in CMV-infected mice, revealing an antiviral reaction that could lead to new treatments for viral infections. This process involves the elimination of infected cells and mobilization of immune cells to combat the pathogen.
Researchers have found a way to obtain large numbers of hematopoietic stem cells from human term placentas, which is an order of magnitude larger than those obtained from cord blood. The findings demonstrate that human term placentas are a high-capacity source of live and functional hematopoietic stem cells.
A new non-invasive method to determine tumor oxygen levels and image surrounding tissues has been developed, offering promising insights into tumor development. Researchers suggest that this approach could lead to improved diagnosis and treatment strategies for tumors and other diseases.
Researchers used HOXB4 to expand hematopoietic stem cells in monkeys, greatly improving their engraftment after radiation damage. The treatment could accelerate the recovery of patients with failed hematopoietic systems by expanding limited numbers of stem cells, such as those found in cord blood.
Researchers identified 277 human genes with different expression profiles in stem and progenitor cells involved in blood cell development. The new method allows for functional validation of high-throughput gene expression analysis, with potential applications beyond blood development.
The Mixed-Lineage Leukemia (MLL) gene plays a crucial role in blood cell development, with its absence resulting in the failure to produce normal blood cells. MLL regulates critical genes necessary for hematopoiesis, a complex process of blood cell formation.
A study by Dr. Jan Storek found that long-term bone-marrow and stem-cell transplant survivors can live normal lives without frequent infections, with immunity recovering to normal within 20 years. The researchers also discovered that transplanted hematopoietic cells remain functional for at least 20-30 years.
Research investigates how tumor suppressor genes are methylated during development, affecting cancer risk. The study reveals complex interactions between epigenetic regulation and cellular differentiation.