Articles tagged with Blood Cells
Researchers have found two different types of fat cells in bone marrow, regulated and constitutive, which store different types of fat molecules. The discovery paves the way for more research on how marrow fat influences the body and its role in diseases like osteoporosis.
Accelerating the G1 phase transit of human blood stem cells significantly improves their function and promotes prolonged continuous production of mature blood cells. This study reveals a crucial regulator of hematopoietic stem cell function, which may contribute to functional defects in aged mice or elderly humans.
New research reveals that smooth muscle cells surrounding brain blood vessels regulate blood flow in response to neuronal activity. The study contradicts previous theories on pericytes' role in blood vessel formation and function.
A new five-year grant aims to develop novel treatments for diseases that inhibit blood cell growth and abnormalities in the bone marrow environment. The study focuses on the role of laminin in maintaining healthy bone marrow and identifying potential targets for treating bone marrow failure syndromes.
Researchers have discovered the 'bicycle spoke' structure of healthy heart cells, which carries an electrical signal through the cell. After a heart attack, this structure is lost and leads to damaged heart muscle and potential heart failure. The study aims to find out why this process happens and develop strategies to intervene.
Researchers discovered a direct link between telomere degeneration and myelodysplastic syndromes (MDS), a group of blood cell disorders. The study found that DNA damage caused by dysfunctional telomeres resulted in repressed expression of the RNA splicing gene SRSF2, affecting CMPs' ability to differentiate.
A new mechanism for regulating blood pressure has been uncovered, involving the stress-sensitive gatekeeper protein ERp44. When ERp44 is released from cells, it accelerates the removal of angiotensin II from circulation, leading to a dramatic drop in blood pressure.
Researchers have developed a large-scale sequencing technique called Genome and Transcriptome Sequencing (G&T-seq) that reveals the unique genome sequence of a single cell and the activity of genes within that cell. The study found that when a cell loses or gains a copy of a chromosome, the genes in that region show decreased or in...
Researchers have described the process of blood vessel pruning on a cellular level, revealing that cells can fuse with themselves to close vessels and prevent blood leakage. This discovery sheds light on the vascular system's ability to regulate itself through plasticity.
Researchers at Walter and Eliza Hall Institute discovered that cancer drug target MCL-1 is crucial for normal blood cell production, but its depletion impairs recovery of the blood cell system after cancer therapy-induced blood cell loss. This finding has important implications for potential cancer treatments involving MCL-1 inhibitors.
Researchers at Gladstone Institutes have discovered a chain of events that cause healthy valves to become bone-like. They identified three key genes that are altered in calcific aortic valve disease (CAVD) and found a potential therapeutic target by manipulating their activity, pointing to novel treatments for the condition.
A new study found that high phosphate levels cause a stress signal inside blood vessel cells, leading to the release of microparticles that promote blood clot formation. This process is a common cause of injury and death, particularly in patients with kidney disease who lose the ability to excrete excess phosphate.
Researchers discovered that increased levels of retinoic acid reduce blood cell production, while lower levels increase it by 300%. This finding supports the need for pregnant women to limit their vitamin A intake. The study also contributes to the development of artificial blood stem cells for patients with blood disorders.
Scientists at the University of Iowa created human insulin-producing cells that respond to glucose and correct blood-sugar levels in diabetic mice. The findings may represent a step toward developing patient-specific cell replacement therapy for type 1 diabetes.
A phase two study demonstrated that a combination of azacitidine and lenalidomide is an effective frontline treatment regimen for patients with higher-risk forms of myelodysplastic syndrome and acute myeloid leukemia. The therapy was well tolerated in the study of 88 patients.
Researchers discovered that tamoxifen blocks symptoms and progression of myeloproliferative neoplasms by targeting hematopoietic stem cells, potentially leading to effective therapy for certain blood disorders.
Researchers have linked age-related loss of the Y chromosome (LOY) to higher mortality and cancer rates in men. LOY was found to decrease men's lifespan by an average of 5.5 years, and increase their risk of dying from cancer.
Researchers at UCLA have discovered that fibroblasts can transform into endothelial cells, which form blood vessels. This finding suggests a potential new strategy for improving heart repair after a heart attack.
Newly created endothelial colony-forming cells can proliferate into human blood vessels, restoring blood flow in mice with damaged tissues. The discovery opens the door for potential treatments for diseases like amputation and blindness.
Researchers successfully induced a rare type of blood cancer in mice using a single stem cell with the mutated JAK2 protein. The resulting cancer cells also retained the JAK2 mutation, offering new insights into the disease's progression.
Researchers at Harvard University developed a barcoding tool to track the origin of blood cells, revealing that progenitor cells, not blood stem cells, give rise to specific blood cell types. This discovery challenges scientific dogma and has potential applications for blood regeneration therapies.
Researchers at Wake Forest Baptist Medical Center developed a new method to coat blood vessels in lab-grown kidneys, allowing them to remain open for four hours. The breakthrough could potentially be applied to other complex organs, such as the liver and pancreas.
Researchers at Wake Forest Baptist Medical Center have developed a successful method to keep blood vessels in lab-built kidneys open and flowing, overcoming a major challenge in the quest for human transplants. The new approach has shown promise in keeping vessels open for four hours, paving the way for longer-term studies.
Reducing sedentary activity appears to lengthen telomeres, which cap chromosomes in cells. A reduction in sitting hours was significantly associated with telomere lengthening in blood cells.
Researchers report that SIV can become entrenched in tissues fewer than 3 days after infection, establishing a permanent reservoir. Early antiretroviral therapy showed limited effectiveness in preventing this establishment.
Researchers have successfully printed artificial vascular networks using a high-tech 'bio-printer', paving the way for large complex tissues and organs. The study achieved significant improvements in cell survival, differentiation, and proliferation.
Researchers have found that human menstrual blood-derived mesenchymal cells can replace animal-derived feeder systems in human embryonic stem cell culture, supporting their growth in an undifferentiated stage. This breakthrough could provide a new means of culturing ESCs for clinical purposes without potential xenocontamination.
Researchers developed a method to label and track single tumor cells circulating in the blood using photoswitchable fluorescent proteins. This advance could help understand cancer spread and prevent metastasis. The technology allows for real-time tracking of individual cells in the bloodstream.
Researchers found that multiple types of primitive cells in blood provide the same benefits as a single stem cell, including protecting and repairing blood vessels. The study used a systems approach to analyze gene activity patterns, identifying 15 genes with cardiovascular-relevant functions.
Researchers at UC Irvine and Salk Institute discover a new mechanism that allows blood to enter the brain immediately after a stroke, leading to permanent deficits in movement and cognition. The study suggests new therapeutic directions aimed at regulating flow through endothelial cells in the barrier after a stroke occurs.
Researchers at Stanford University have developed a technique to study the genetic activity of individual cells during embryonic development. By analyzing the genes active in lung cells at different stages, they revealed how specific cell types are formed and gained insights into the mechanisms of alveolar cell differentiation.
A Stanford team decodes genetic instructions in embryonic cells, revealing how they transform into specialized cell types. They focus on lung cells, capturing precise gene activity at different stages of development, shedding light on alveolar type I and II cells' unique properties.
Researchers found detectable JC virus DNA in at least one cell subtype of 26 out of 49 patients with MS starting natalizumab therapy. This study suggests that ongoing studies are needed to investigate the mechanism behind PML in natalizumab-treated MS patients.
Researchers at UC Davis successfully coax laboratory cultures of human stem cells into the specialized, unique cells needed to repair a patient's defective or diseased bladder. The breakthrough provides a pathway to regenerate replacement bladder tissue for patients whose bladders are too small or do not function properly.
Researchers at Uppsala University discovered a new type of cell communication that suppresses blood vessel formation and delays tumour growth. Fluctuating levels of the molecule NRP1 can inhibit VEGF signals, leading to delayed tumour growth and potentially complete inhibition if trans communication occurs early in tumour development.
Researchers have developed an ultrasensitive nanoprobe that can detect just four circulating tumor cells in the bloodstream, surpassing traditional enzyme-based methods. This breakthrough system uses Fe3O4 nanoparticles to electrochemically sense cancer cells and offers a robust solution for early cancer detection.
Researchers develop novel two-pronged strategy targeting DNA synthesis to treat leukemia in mice. The approach, which involves blocking both the de novo and salvage pathways, shows promise as a targeted metabolic intervention for acute lymphoblastic leukemia.
A protein called Lis1 regulates asymmetric division of hematopoietic stem cells, ensuring proper blood cell generation. Deleting Lis1 from mouse stem cells accelerates differentiation, leading to a bloodless mouse. The finding has implications for cancer treatment, as cancer stem cells also rely on Lis1.
Yale researchers discovered that accelerating cell cycle speed reduces barriers to changing a cell's fate, allowing for pluripotent cells to be created more efficiently. The study found that cells with faster cycles can become multiple cell types, whereas slower cycles remain in their original state.
Researchers have identified a key protein called TL1A that drives chronic inflammation, leading to diseases like arthritis. The discovery provides hope for developing targeted biological medicines to halt disease progression and alleviate symptoms.
Researchers found that patients with congenital arrhythmia produce twice the amount of insulin after consuming sugar, leading to drastically low blood sugar levels. The discovery could have significant implications for treatment of diabetes and management of hypoglycaemia.
A study by the American Society of Hematology found that bone marrow transplant is linked to diminished sexual health in both men and women. Chronic graft-versus-host disease and total body irradiation are particularly damaging, with men experiencing a decline in libido and dysfunction.
Researchers have successfully grown large numbers of patient-specific brain cells in the lab using small biopsies, which express natural protective agents. These cells may be used to treat a range of neurological conditions and could potentially cross the blood-brain barrier to deliver targeted therapies.
Researchers at the University of Michigan have developed a microfluidic chip that can capture elusive circulating tumor cells from blood, supporting their growth for further analysis. This technology has the potential to revolutionize cancer diagnosis and treatment by providing accurate prognoses and testing treatment options on cultur...
Researchers successfully grew vascular endothelial cells from human induced pluripotent stem cells, mimicking the flow of blood to differentiate cell types. The iPS-derived cells display critical functions carried out by mature endothelium in the body, including mounting inflammatory responses and preventing blood clots.
Researchers at Columbia University Medical Center created DNA nanorobots that can identify and tag specific human cells based on multiple surface proteins. This allows for precise targeting of cancer cells with minimal impact on healthy cells, potentially revolutionizing cancer treatment.
Researchers have discovered a new leukemia model, showing that cancer stem cells actively remodel the bone marrow environment to favor diseased cells. This finding could influence the effectiveness of bone marrow transplants and lead to the development of new therapies.
A new study published in Stem Cell Reports found no evidence of the existence of very small embryonic-like stem cells (VSELs), which could have been used for regenerative medicine. The researchers refuted claims of VSELs' potential, calling into question current plans for a clinical trial.
A new mechanism, critical for maintaining the balance between active and reserve hematopoietic stem cells, is identified through genomic imprinting. This process prevents premature activation of the reserve pool, ensuring its long-term maintenance.
Scientists have developed a method to generate functional blood vessels lasting up to nine months using human induced pluripotent stem cells. The breakthrough could lead to new treatments for cardiovascular disease and diabetes.
A new study confirms that the body generates hydrogen sulfide (H2S) as a signaling molecule for cardiovascular health. The researchers developed a chemical probe that reacts with H2S and allows them to visualize its presence in live human cells.
Researchers at Mount Sinai have made a breakthrough in programming blood-forming stem cells, which could lead to the development of patient-specific blood products. The study uses mouse fibroblast cells and identifies a combination of four genetic factors that can generate blood vessel precursor cells with hematopoietic cells.
Researchers found that HDAC3 is essential for DNA replication in hematopoietic progenitor cells and plays a critical role in Alzheimer's disease pathogenesis by binding to the cellular protein FCγRIIb, which activates cell stress and death pathways. The study also identified a link between FCγRIIb and memory impairment in AD patients.
The study reveals HDAC3 plays a key role in regulating gene expression, chromatin structure, and genome stability. Disruption of HDAC3 expression leads to impaired hematopoiesis, highlighting its importance in stem cell functions and bone marrow failure syndromes.
Dr. Jennifer Gillette is studying the role of hematopoietic stem cells in directing the creation of new blood vessels at the site of a crisis, such as a heart attack. Her research aims to improve treatment responses for heart disease and potentially benefit cancer patients who receive hematopoietic stem cell transplants.
A team of researchers at the University of Minnesota has discovered that a single gene, Mesp1, can be used to create different cell types, including heart, blood, and muscle cells, from stem cells.
Researchers at the University of Luxembourg have developed a computer-based method to analyze biological data and identify unique factors for 166 different human cell types. These master regulators determine cell development and distinguish between cell types, paving the way for potential cell replacement therapies.
Researchers discovered that cells beyond the nose have receptors for sensing odors, raising questions about whether organs 'smell' food. The study's findings could revolutionize our understanding of how we experience flavors and aromas.
Researchers have developed a multi-stage, multi-orifice flow fractionation system to detect and separate circulating tumor cells (CTCs) from blood with high efficiency, improving separation efficiency to 98.9%. The device, called MS-MOFF, employs hydrodynamic sorting and can collect viable CTCs after sorting.
Research at Baylor College of Medicine found that bone marrow cells producing BDNF travel to the hypothalamus, where they fine-tune appetite. A bone marrow transplant restoring the gene for BDNF can normalize appetite and reduce overeating in mice with insulin resistance.