Articles tagged with Stem Cells
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Aging muscles heal more slowly after injury due to increased levels of protein NDRG1 in aged muscle stem cells. NDRG1 helps stem cells survive longer but reduces their ability to activate and repair tissue.
A research team has developed a way to produce corticospinal-like neurons that centrally degenerate in motor neuron disease and are damaged in spinal cord injury. The study uses a multi-component gene-expression system called NVOF to precisely fine tune regulatory signals, resulting in mature neurons with distinct characteristics.
Researchers at University of California San Diego discover gene therapy restoring connexin-43 improves heart function and extends survival in several forms of arrhythmogenic cardiomyopathy. The approach may have broader therapeutic potential across multiple genetic forms of the disease, addressing a critical unmet need.
A revised approach to measuring treatment success for patients with chronic graft-versus-host disease has been proposed by the National Institutes of Health Consensus Project Task Force. The new criteria aim to capture clinically meaningful improvements in skin involvement, leading to better patient outcomes and more effective treatments.
Researchers developed bioengineered lymphatic tissue (CeLyT) that restored functional lymph nodes in mice with secondary lymphedema. CeLyTs improved lymphedema symptoms by restoring lymphatic flow, filtration capacity, and immune cell populations.
A new study reveals that gut microbiota directly affects intestinal stem cell function, leading to impaired regeneration after injury. Restoring a more youthful microbiota can reverse the age-related decline in ISC activity.
The journal is seeking early-career scientists to serve on its editorial team, providing hands-on experience and mentorship. Selected members will play an active role in shaping the journal's scientific vision and community engagement.
A Korea University study successfully mimics heart mechanics in organoids using three-dimensional magnetic torque, enhancing cardiac differentiation, maturation, and vascularization. This breakthrough could improve drug safety testing by providing more accurate human-relevant models for cardiotoxicity screening.
A Japanese research team has developed a biohybrid approach that works inside the body, transforming engineered skin into a visible indicator of internal biological states. The system leverages the body's natural skin regeneration to support long-term biomarker monitoring, providing a visual readout without blood sampling.
A University of California San Diego team is developing a first-of-its-kind stem cell-based gene therapy for Friedreich’s ataxia. The $7.4 million grant will support safety studies, manufacturing and clinical planning needed before applying to test the treatment in patients.
Scientists have discovered how cells maintain safe protein levels despite fluctuations in resources, using a mechanism called Passive Adaptation that adjusts protein removal rates. This process helps cells cope with changes in nutrient availability, development, or stress.
Researchers from A*STAR Institute of Molecular and Cell Biology discovered that Aquaporin-5 (AQP5) reliably marks gastric cancer stem cells, which drive tumour growth, spread, and recurrence. Eliminating these cells prevents tumours from growing, even in advanced disease with organ metastasis.
Researchers discovered subtypes of chondrocytes that transform into bone-building cells, regulating bone growth and vascularization. The study found that these cells secrete Thbs4 to induce blood vessel formation, shedding insights for treating defective angiogenesis.
Chromatin accessibility maps reveal that MDS stem cells gradually lose their normal identity and acquire characteristics typical of myeloid progenitors. A 'progenitor score' developed by the team tracks cell movement toward a progenitor-like state, correlating with disease severity and prognosis.
Growth hormone directly controls behavior of stem cells in growth plate, stimulating growth but also depleting cartilage stem cells. This delicate balance is crucial for long-term bone development and may contribute to refining growth hormone treatments.
Researchers found that the tenascin-C protein promotes a thriving community of functional muscle stem cells needed for efficient muscle regeneration. Aging reduces skeletal muscle regeneration due to lower levels of TnC and impaired muscle stem cell function.
Researchers used human pluripotent stem cells to model early placental formation, discovering VGLL1 plays a crucial role in turning stem cells into placental stem cells. The study's findings could lead to improved embryo quality and viability, especially for in vitro fertilization.
Researchers at the University of Maryland School of Medicine have identified a bacterial enzyme called zmpB that can cause fatal heart complications in people infected with pneumonia. The enzyme potentiates the invasion of Streptococcus pneumoniae into the heart, leading to damage and potentially life-threatening outcomes.
Researchers explore innovative avenues for regenerating functional β-cells using stem cells and pancreatic progenitor cells. The dual approach of activating endogenous progenitors and transplanting externally differentiated cells represents a powerful, scalable strategy for T1D management.
A research team identified a key function of the intestinal nervous system in controlling the intestinal barrier's composition and stability. The study suggests that the 'gut brain' acts as a central hub for health, immunity, and potentially conditions like allergies, and may be influenced by diet.
A new humanised model based on induced pluripotent stem cells identifies SETBP1 as a key driver of disease progression. The model shows that secondary mutations impair haematopoietic differentiation and reduce the regenerative capacity of myeloid progenitor cells.
Researchers develop ex vivo treatment of blood stem cells with Rhosin, a RhoA inhibitor, to rejuvenate them and improve the production of healthy blood cells. This strategy targets the core of the ageing process, making blood stem cells more capable of regenerating and producing new healthy blood cells.
Researchers at Mount Sinai discovered a technique to renew aged blood-forming stem cells by correcting defects in lysosomes. The breakthrough revealed that restoring lysosomal slow degradation can revitalize aged stem cells and enhance their regenerative capacity. This study may help prevent age-related blood disorders and improve stem...
Recent studies by Brazilian scientists clarify key roles of STIP1 and Maspin in vital cellular processes, including embryonic development, cell communication, and tissue renewal. These findings contribute to cancer research, regenerative medicine, and understanding cellular homeostasis.
Researchers at Terasaki Institute and Caltech will use stem cell-based models to identify factors influencing early human development. The goal is to gain insights into infertility, pregnancy loss, and developmental disorders.
Researchers used human-induced pluripotent stem cell-derived kidney organoids to model nephronophthisis, revealing the Hippo signaling pathway's role in fibrosis. Inhibiting this pathway with drugs like verteporfin shows promise as a treatment option.
Researchers developed a first-of-its-kind prenatal brain model to study cerebral hemorrhages on stem cells in preterm birth. An antidote reduced brain damage, and the study identified how neural stem cells are damaged by elevated interleukin-1 levels.
A UC Merced biologist found that activating neural signals can selectively remove cancer symptoms in planarian flatworms, which could change how doctors treat cancer and age-related diseases. The study may also shed light on degenerative conditions linked to aging.
Researchers developed a scalable method to produce human kidney organoids, combining them with pig kidneys outside the body for transplantation. The transplanted organs functioned normally and showed no signs of damage or toxicity.
Researchers at Sanford Burnham Prebys have developed a new method to generate more and potent skeletal muscle progenitor cells. The study found that blocking the activity of Janus kinase 2 (JAK2) yields a twofold increase in cell yield, while also delivering more mature and effective cells for regenerative medicine treatment.
Patients with weak heart function who receive stem cell therapy shortly after a heart attack have lower rates of heart failure and hospital stays. The technique may be a valuable add-on procedure for patients with weakened heart function after a heart attack to prevent subsequent heart failure.
Researchers at Harvard University have discovered that salamanders rely on the sympathetic nervous system to activate stem cells throughout the body, enabling them to regrow entire limbs. This finding may provide insights into developing regenerative treatments for humans, particularly in limb regeneration and organ repair.
Lehigh University researchers used machine learning to compare bone marrow extracted from the hip and shoulder, finding six proteins that distinguish between the two extraction sites. This study may lead to standardized BMAC extraction protocols and personalized treatments based on protein concentrations.
A new study reveals that combining proteasome inhibitors with Lys05 can effectively kill AML cells by disabling backup survival pathways. This approach has shown promise in preclinical models and could lead to improved treatment options for a wider range of AML patients.
Researchers developed a new human brain tissue platform called miBrains, integrating all major brain cell types and modeling brain structures, cellular interactions, activity, and pathological features. The models can be customized through gene editing and are derived from individual patients' genomes.
The study introduces a synthetic, animal-free gel that enables the long-term growth of 3D organoids, overcoming limitations of traditional animal-derived gels. The PIC–invasin gel offers robustness, consistency, and potential for widespread use in research and clinical settings.
A new study reveals that ancient hominids were exposed to lead earlier than thought, up to two million years before modern humans began mining the metal. This exposure may have shaped the evolution of hominid brains, limiting language and social development in all but modern humans due to a protective genetic variant.
Researchers at the University of Cambridge have developed a new lab-grown human embryo model that replicates early human development, including the production of blood stem cells. The 'hematoids' model mimics the natural developmental process, offering potential medical advances in screening drugs and studying blood disorders.
Researchers have discovered that APOL1 mutations impair mitochondrial function in podocytes, leading to impaired kidney filtering. This finding could explain why inflammation triggers the onset of AMKD in patients, paving the way for targeted treatments.
A diet rich in cysteine has been shown to activate immune cells that help regenerate intestinal tissue, potentially offering a new way to heal tissue damage from radiation or chemotherapy treatment. The researchers found that cysteine initiates a chain of events leading to the activation of CD8 T cells, which produce cytokines like IL-...
Scientists successfully derive and maintain self-renewing and pluripotent ESCs from chickens and seven other bird species using a growing medium of egg yolk. The study holds promise for applications in studying embryonic development, producing lab-grown poultry, and reviving endangered birds.
Using embryoid models made of stem cells, researchers uncovered important processes mimicking the first moments of human development. The team applied AI neural networks to thousands of images collected with confocal fluorescent microscopy to detect features and protein marker expression data.
Researchers have uncovered how mosquito-borne viruses invade the brain by exploiting specific proteins on blood-brain barrier cells. The study highlights promising molecular targets for future vaccines and antiviral drugs to prevent severe neurological complications.
Researchers at Mayo Clinic found that transplanting patients' own stem cells into their veins can help prevent inflammation and vein narrowing in patients with end-stage kidney disease. This could extend the time before dialysis is required, reducing healthcare costs and improving patient outcomes.
Researchers demonstrate that intraoral administration of abaloparatide combined with orthodontic force supports alveolar bone thickening. ABL-induced alveolar bone formation is linked to the focal adhesion pathway, where FAK activation plays a crucial role.
Stem cell transplantation has been shown to reverse stroke damage in mice by regenerating neurons and restoring motor functions. The treatment also improved blood-brain barrier integrity, reduced inflammation, and promoted new blood vessel formation.
A study led by Keck School of Medicine of USC found that a stem cell transplant performed one week after an ischemic stroke in mice led to significant brain cell growth and functional recovery. The treated mice showed improved fine motor skills, gait, and reduced inflammation compared to untreated mice.
Researchers at Cold Spring Harbor Laboratory have mapped two known stem cell regulators across thousands of maize and Arabidopsis shoot cells. This discovery reveals new stem cell regulators in both species and links some to size variations in maize.
Researchers found distinct effects of single disease-causing gene variants across different brain regions, pointing to hippocampal disruptions as a key factor in cognitive problems beyond seizures. This study provides an early step toward understanding why current treatments often fall short and may help identify new therapies.
UC San Diego researchers have discovered that spaceflight accelerates the aging of human hematopoietic stem and progenitor cells, leading to increased DNA damage and telomere shortening. The study's findings offer insights into aging and disease risks during long-duration space travel and suggest potential rejuvenation strategies.
Researchers found that increased levels of EPS8 drive pathological protein aggregation and neurodegeneration in worms and human cell models. By reducing EPS8 activity, they prevented toxic protein accumulation and preserved neuronal function.
Researchers discovered that breast cancer cells co-opt iron-recycling immune cells in bone marrow to acquire essential minerals, disrupting red blood cell production. This adaptation enables cancer cells to survive in low-oxygen environments and proliferate, ultimately leading to anemia and poor patient outcomes.
A scientific team co-led by Dr. Lishomwa Ndhlovu at Weill Cornell Medicine has received an NIH MERIT Award to study a handful of people who have managed to clear HIV after a stem cell transplant. The goal is to identify the immune mechanisms that led to remission and develop a broadly applicable immunotherapy for eliminating HIV.
Researchers at the University of Minnesota have developed a groundbreaking process to combine 3D printing, stem cell biology, and lab-grown tissues for spinal cord injury recovery. The method involves creating 3D-printed scaffolds with microscopic channels that promote the growth of new nerve fibers.
Scientists have developed a new approach to analyze proteins in individual cells during blood cell formation, bypassing mRNA intermediates. This study reveals the correlation between mRNA levels and protein expression, shedding light on the role of essential proteins in maintaining stem cell populations.
Dr. Greenblatt's discovery of distinct types of bone-building stem cells has opened new areas of research into targeted therapies for bone cancer, osteoporosis, and rare bone conditions. His work has identified potential therapeutic targets to block spine metastases in breast and prostate cancer.
Several companies in the UK are promoting tooth stem cell banking as a treatment for autism, type 1 diabetes, and other conditions, despite a lack of evidence. Experts say these claims are 'outrageous' and risk exploiting vulnerable parents.
Researchers have developed a novel method to stimulate and mature human brain organoids using graphene, accelerating disease research and enabling brain-machine interfaces. The approach allows for safe, non-genetic, biocompatible stimulation of neural activity over days to weeks.
A team of researchers at Kyoto University successfully cryopreserved mouse stem cells and sent them to the International Space Station, where they returned healthy offspring after thawing. The study suggests that cryopreservation can maintain fertility for at least six months, paving the way for future human spaceflight.
Researchers have discovered a new type of stem cell that can transform from muscle to bone, which may lead to more effective treatments for fractures. The study found that Prg4+ cells were crucial in repairing bones and could be stimulated or introduced directly to the fracture site to accelerate healing.