Articles tagged with Stem Cells
Researchers have recreated the 3D architecture of the cornea to facilitate the transplant of healthy corneal stem cells. This innovation restores sight by replacing damaged cell layers with functional ones.
Melbourne researchers solved a puzzle on how an essential hormone stimulates platelet production. They found that bone marrow cells can become overstimulated and produce too many platelets, leading to blood diseases such as essential thrombocythemia.
Researchers at Duke University have successfully grown lab-grown muscle that demonstrates self-healing properties, integrating into mice quickly and contracting powerfully. The breakthrough, led by Nenad Bursac, uses well-developed contractile muscle fibers and satellite cells to create a microenvironment for regeneration.
A comprehensive atlas of human gene activity has been released, revealing complex networks that govern gene expression. The new findings could lead to a better understanding of the genetic causes of diseases and improve disease diagnosis.
A comprehensive 'roadmap' of blood cells has been presented by researchers, pinpointing the location of key genetic regulators that determine cell development and function. This robust genetic catalog will enable hematologists to trace the development of blood cells and identify potential triggers for malignancies.
Researchers have successfully reprogrammed rat astrocytes into neurons using Mash1, a transcription factor. This method avoids malignant transformation and offers a promising therapeutic strategy for neural regeneration.
Researchers discovered that cells respond to rhythmic biological signals by counting the number of cycles, not their strength or duration. This mechanism, found in single-celled organisms, synchronizes changes in cell fate and may explain patterns in developing embryos and snail learning.
Scientists have made a breakthrough in treating type 1 and type 2 diabetes by successfully converting gut cells into functional insulin-producing cells. The new method involves introducing specific transcription factors into intestinal crypt cells, which can then produce insulin and improve hyperglycemia in diabetic mice.
Researchers have developed novel techniques for engineering lungs using 3D scaffolds, enabling high-throughput studies of human lungs and accelerating progress towards lung tissue regeneration. The new methods allow for selective injection of stem cells into decellularized lung segments while preserving vascular and airway channels.
Researchers found that a common mutation activates the Akt pathway, rendering cells resistant to chemotherapy and increasing growth. Inhibition of this pathway restored leukemic cell responses to front-line therapy.
Scientists have discovered a molecular 'switch' that regulates heart cell division and could potentially be used to regenerate damaged heart tissue. The discovery was made by studying infant siblings with a rare heart defect, who exhibited unusual heart cell proliferation.
Scientists at UC San Diego School of Medicine have made a breakthrough discovery on the fate determination of T lymphocytes during an infection. They found that individual cells can make decisions about whether to become effector or memory cells almost immediately after exposure to a pathogen, suggesting that this process could be cruc...
Researchers have created a highly aligned nanofibrous scaffold derived from decellularized human fibroblasts, allowing cells to thrive and mimic the natural extracellular matrix. The scaffold's uniform composition and low immune response make it suitable for engineering softer tissues like skin, blood vessels, and muscle.
Researchers have discovered a method for restoring strength to damaged skeletal muscles in the elderly using stem cell therapy. The treatment involves treating cells outside the body with a drug that prevents protein modification and culturing them on soft biomaterials, allowing aged cells to grow and self-renew.
Researchers at Caltech have shown that bone marrow cells are sensitive to infection-related molecules and respond rapidly. They detect invasion and mount an inflammatory response, producing cytokines that stimulate the differentiation of immune cells.
Researchers analyzed T cell receptor sequences to understand immune system reconstitution following high-dose immunosuppression. CD4+ and CD8+ lymphocytes exhibit different reconstitution patterns, with dominant clones expanded or undetectable at 12 months post-transplant.
Researchers have found that aging muscle stem cells become less able to regenerate new fibers and self-renew. However, they discovered a process to rejuvenate old muscle stem cells using a drug and soft hydrogel substrate, enabling them to repair muscle damage in mice.
A recent study published in Biology of Blood and Marrow Transplantation found that parents of children undergoing stem cell transplant experience increased distress during the procedure but recover to normal levels of adjustment. Parents demonstrate remarkable recovery despite facing significant life challenges.
Researchers at NIST have developed a way to measure and classify the shapes cells take in different environments. By analyzing these shapes, they can compare and differentiate various scaffolds used in tissue engineering, enabling more effective cell growth and development into viable tissues.
A new nanoparticle system will recruit stem cells to regenerate arterial walls, reducing complications and extending patient lives. Researchers have discovered a way to use nanoparticles to help arteries heal more effectively following surgical procedures.
Researchers at UT Southwestern Medical Center found that estrogen increases proliferation of blood-forming stem cells in females, leading to increased red blood cell production. This discovery raises possibilities for treating blood cancers and reducing chemotherapy toxicity by considering estrogen levels.
A new imaging technique called white-light diffraction tomography (WDT) provides high-resolution, three-dimensional images of living cells without the need for dyes or chemicals. This allows researchers to study cellular processes and dynamics in a non-invasive manner, enabling unprecedented insights into cell function and behavior.
A study published in Cell found that altering the symbiotic relationship between bacteria and intestinal cells can promote health and increase lifespan in flies. The research highlights the importance of maintaining a balanced gut microbiome and suggests that this may be key to enjoying a long healthy life.
Researchers discovered a targeted treatment's mechanism of action, which involves the PML/p53 pathway and senescence. The treatment's effectiveness relies on reorganizing nuclear bodies and triggering p53 activation, leading to the elimination of cancer cells and patient recovery.
Azim Surani receives the McEwen Award for Innovation for pioneering epigenetics research; Valentina Greco wins the ISSCR-BD Biosciences Outstanding Young Investigator Award for her noninvasive method to visualize skin stem cell division. Paolo Bianco, Elena Cattaneo, and Michele De Luca receive the ISSCR Public Service Award for their ...
Researchers discover a subgroup of memory T-cells that are resistant to HIV killing and can survive for years, making them a key target for developing a true 'cure' for HIV infection. This finding could also lead to the development of new cancer therapies targeting stem-cell metabolic pathways.
A research team at the University of California, San Diego has discovered how calcium phosphate-based materials encourage stem cells to differentiate into bone-forming cells. The findings could lead to the development of new biomaterials that can be used to treat bone defects and diseases.
Researchers at UCSF have discovered that animal cells use cytonemes to transmit signals over long distances through physical contact. This challenges the standard understanding of cell communication and highlights a new mechanism for signal transfer in tissues.
Researchers at Moffitt Cancer Center have discovered a control mechanism that can trigger the development of myelodysplastic syndromes by promoting inflammation and preventing healthy blood cells from developing. The study found that targeting this mechanism may lead to new treatment options for people with certain blood cancers.
A systematic review of animal studies found that stem cell therapy can improve sensory and motor outcomes for spinal cord injury patients, with average improvements of 25% in both areas. The study's meta-analysis also revealed important lessons on how to design future animal studies.
Mary Ann Liebert, President and CEO of Mary Ann Liebert, Inc., will receive the 2013 Education Award from the Genetics Policy Institute. She is being honored for her work educating patients, researchers, and the broader stem cell community about the promise and applications of stem cells in medicine.
Researchers at Cedars-Sinai Medical Center have developed a novel procedure to prepare human amniotic membrane for use as a scaffold for specialized stem cells, which may treat corneal diseases such as blindness. The new method promises to streamline clinical applications of cell therapies and accelerate research in this area.
Researchers have developed nanoscale patches that can be used to sensitize targeted cell receptors, making them more responsive to signals. This technology holds promise for promoting healing and facilitating tissue engineering research.
Researchers at the University of Granada have successfully grown artificial skin using Wharton jelly mesenchymal stem cells from the umbilical cord. This breakthrough could provide instant use for burn victims, reducing the need for weeks-long growth periods.
Researchers found that two salamander species have distinct ways of regrowing muscles, with one relying on dedifferentiation and the other on stem cells. This discovery may lead to a better understanding of human muscle regeneration and potentially treat muscular dystrophy.
Researchers identified critical role of stem cell factor in cardiac repair and regeneration, showing potential clinical benefits of gene transfer to reverse heart damage. The study demonstrated significant improvement in cardiac function and reduced heart muscle cell death.
San Diego State University has received a $8.5 million grant to study how the heart heals and ways stem cells can help repair it. Researchers aim to clear away limitations that limit cardiac function and restore quality of life for patients suffering from heart failure.
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.
Scientists at VIB and Ghent University identified a new protein, ERF115 transcription factor, which regulates quiescent center cells. This discovery explains why plants can live for hundreds of years while animals typically do not.
A recent study published in PLOS ONE reveals that sweat gland stem cells have the ability to differentiate into multiple cell types, including hair follicles and skin layers. This discovery offers exciting possibilities for developing stem cell-based treatments for conditions like hyperhidrosis and hypohidrosis.
A team of researchers at the University of Copenhagen has developed a new 3D method to efficiently expand pancreatic cells, allowing for the growth of miniature human pancreas models. These models can be used to test new drugs and therapies for diabetes without the need for animal models.
A team led by Chris Sullivan found that RNA interference does not play a role as an antiviral in most body cells in mammals. Researchers suggest that RNAi may have evolved to regulate the protein-based immune response instead.
Human skin stem cells have been found to possess a natural internal clock, which helps them regulate functions such as UV protection in response to circadian changes. This finding could lead to new strategies for preventing premature aging and cancer.
A study found that binge drinking slows bone healing by impairing the formation of hard bony tissue and recruiting stem cells to the injury site. Alcohol also increases oxidative stress, which can lead to weaker bones.
A team of engineers has developed a new approach that marries computer vision and hardware optimization to sort cells up to 38 times faster than current techniques. The approach improves on imaging flow cytometry, which uses camera mounted on a microscope to capture cell features.
A researcher at UT Arlington is working on a new method using nanoparticles to recruit stem cells and build needed stents in failing blood vessels. The goal is to treat peripheral artery disease, which affects about 8 million Americans, with a less invasive approach that could save patients' lives.
Researchers at Rice University and MD Anderson Cancer Center will analyze protein networks in stem cells using a combination of technologies. The goal is to understand how cells change their status and behaviors, which could lead to new insights into cancer development.
Researchers discovered that the transcription factor EBF1 is crucial for maintaining B cell identity and preventing alternative fates. When EBF1 was switched off, transplanted B cells forgot their previous identity and developed into T cells and natural killer cells.
Researchers at Caltech have discovered a new mechanism for creating macrophages by increasing the accumulation of regulatory protein PU.1 through slowed cell division. The process involves an unexpected cycle where cell division slows, allowing higher PU.1 levels to accumulate and prompt macrophage generation.
Researchers have developed a new biomaterial that can deliver reparative cells to the nucleus pulposus, or jelly-like cushion found between spinal discs. The gel mix holds cells in place upon injection and provides environmental cues to promote their persistence and biosynthesis.
Lamins are essential proteins supporting the organization of stem cell niches, which regulate proliferation and differentiation of germline stem cells. This discovery could lead to a better understanding of diseases caused by lamin mutations and their impact on tissue degeneration.
Scientists have successfully targeted a malfunctioning immune system enzyme to eliminate diseased cells from patients with myelodysplastic syndrome (MDS), a blood disorder and precursor to leukemia. The research provides a molecular target for designing new drugs, offering a promising treatment option.
In a Phase 2 study, ibrutinib demonstrated an overall response rate of 68% and complete response rate of 21% in patients with relapsed or refractory mantle cell lymphoma. The treatment showed promise with fewer side effects than traditional chemotherapy approaches.
A new study from USC researchers has found that a genetic mutation in testis stem cells increases the production of sperm carrying the disease trait, making older fathers more likely to pass it along to their children. This mutation gives an edge over normal stem cells, resulting in higher frequencies of new cases every generation.
Researchers found that amniotic fluid stem cells can communicate with mature heart cells through channels in the membrane, forming functional gap junction connections. However, these cells do not differentiate into cardiac tissue under these conditions.
Researchers found that human brown adipose tissue is abundant in deep neck regions and can be grown into functional cells. These findings open possibilities for studying BAT's role in metabolism and developing treatments to combat obesity.
UCSF scientists discovered that muscle repair requires the action of two types of cells: eosinophils and fibro/adipogenic cells. Eosinophils help clear cellular debris and collaborate with FAP cells to trigger muscle regrowth.
Researchers at RIKEN have identified a compound that could be used to prevent relapse in acute myeloid leukemia patients, particularly those with the FLT3-ITD mutation. The compound targets human primary AML stem cells and reduces AML cell counts in mouse models.
A new study identifies osteopontin as a potential new leukemia treatment target. The protein helps leukemia cells avoid the effects of chemotherapy by appearing dormant in the bone marrow environment.
Researchers found that intestinal stem-cell regeneration in fruit flies varies with the time of day, with gut healing being more effective at certain times. This study sheds light on how circadian rhythms control daily functions and has potential applications for human health, including optimizing chemotherapy timing.