Current Stem Cells News and Events

Current Stem Cells News and Events, Stem Cells News Articles.
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Tweaking corn kernels with CRISPR
Corn has a highly complex genome, making it a challenge to apply genome-editing techniques to it. CSHL Professor David Jackson and postdoctoral fellow Lei Liu used CRISPR to tinker with the corn genome promoter regions and modify stem cell growth. They figured out which sections influence kernel yield, and they hope to make targeted genome-editing in corn more precise and efficient. (2021-02-22)

'Mini brain' organoids grown in lab mature much like infant brains
A new study from UCLA and Stanford University researchers finds that three-dimensional human stem cell-derived 'mini brain' organoids can mature in a manner that is strikingly similar to human brain development. (2021-02-22)

Yale scientists repair injured spinal cord using patients' own stem cells
Intravenous injection of bone marrow derived stem cells (MSCs) in patients with spinal cord injuries led to significant improvement in motor functions, researchers from Yale University and Japan report Feb. 18 in the Journal of Clinical Neurology and Neurosurgery. (2021-02-22)

Stem cells provide hope for dwindling wildlife populations
A paper recently published in the scientific journal Stem Cells and Development shares an important advancement in conservation -- one that may make the difference between survival and extinction for wildlife species that have been reduced to very small population sizes. Using fibroblast cells that have been preserved in San Diego Zoo Global's Frozen Zoo®, scientists have been able to generate induced pluripotent stem cells of northern and southern white rhinoceroses. (2021-02-22)

Bioengineered hybrid muscle fiber for regenerative medicine
Scientists regenerate damaged muscle tissue using cell reprogramming technology and natural-synthetic hybrid scaffold. (2021-02-21)

Study reveals how a longevity gene protects brain stem cells from stress
A gene linked to unusually long lifespans in humans protects brain stem cells from the harmful effects of stress, according to a new study by Weill Cornell Medicine investigators. (2021-02-19)

Lab-grown 'mini-bile ducts' used to repair human livers in regenerative medicine first
Scientists at the University of Cambridge have used a technique to grow bile duct organoids - often referred to as 'mini-organs' - in the lab and shown that these can be used to repair damaged human livers. This is the first time that the technique has been used on human organs. (2021-02-18)

Mount Sinai researchers identify mechanisms that are essential for proper skin development
Latest discovery could improve development of future stem cell therapies and cancer treatments. (2021-02-18)

Phase I clinical trial shows promise of adipose-derived stem cells in treating lymphedema
Results of a phase I clinical trial released in STEM CELLS Translational Medicine shows there is a strong possibility that stem cells may alleviate lymphedema, a chronic debilitating condition affecting up to one in three women treated for breast cancer. (2021-02-17)

Genotoxic E. coli 'caught in the act'
Max Planck researchers and their collaborators reveal transformation of colon organoids in vitro. (2021-02-17)

Cancer research: Targeted elimination of leukemic stem cells
Cancer research in Bern has discovered a further mechanism to combat leukemia: a research team at Inselspital, Bern University Hospital and the University of Bern has succeeded in identifying an important signaling pathway for regulating leukemic stem cells. With this discovery, the researchers are expanding the arsenal of potentially highly effective drugs against leukemia. (2021-02-16)

Researchers take early step toward leukemia drug therapy
The team has discovered that for acute myeloid leukemia (AML) patients, there is a dopamine receptor pathway that becomes abnormally activated in the cancer stem cells. This inspired the clinical investigation of a dopamine receptor-inhibiting drug thioridazine as a new therapy for patients, and their focus on adult AML has revealed encouraging results. (2021-02-16)

Oncotarget: Cancer stem cells and macrophages against cancer
The aim of this Oncotarget review is to define the complex crosstalk between these two cell types and to highlight potential future anti-cancer strategies (2021-02-15)

Evolution of cereal spikes
A research team led by Prof. Dr. Maria von Korff Schmising from Heinrich Heine University Duesseldorf (HHU) and the Max Planck Institute for Plant Breeding Research (MPIPZ) in Cologne investigated the genetic regulation of spike development in barley and wheat. As reported in the current issue of the Proceedings of the National Academy of Sciences of the United States of America (PNAS), they discovered different barley mutants with wheat-like spikes. (2021-02-15)

Integrating maths and plant science to explain how plant roots generate a hormone gradient
The research team that developed a biosensor that first recorded that a distinct gradient of the plant growth hormone gibberellin correlated with plant cell size has now revealed how this distribution pattern is created in roots. (2021-02-15)

Unlocking the mystery behind skeletal aging
Researchers from the UCLA School of Dentistry have identified the role a critical enzyme plays in skeletal aging and bone loss, putting them one step closer to understanding the complex biological mechanisms that lead to osteoporosis, the bone disease that afflicts some 200 million people worldwide. Findings, published online in the journal Cell Stem Cell, could hold an important key to developing more effective treatments for osteoporosis and improving the lives of an aging population. (2021-02-15)

Promising new approach to stop growth of brain cancer cells
Inhibiting a key enzyme that controls a large network of proteins important in cell division and growth paves the way for a new class of drugs that could stop glioblastoma, a deadly brain cancer, from growing. (2021-02-12)

New discovery could pave the way for improved treatments for diabetes
Monash University researchers have uncovered the barrier to β-cell (beta cell) regeneration that could pave the way for improved treatments for diabetes and diseases that involve organ and tissue damage. (2021-02-12)

Wake-up call for neural stem cells
A brain enzyme activates dormant neural stem cells, revealing how defects in its gene could lead to neurodevelopmental disorders. (2021-02-11)

Compounds from apples may boost brain function
Natural compounds found in apples and other fruits may help stimulate the production of new brain cells, which may have implications for learning and memory, according to a new study in mice published in Stem Cell Reports. (2021-02-11)

Neandertal genes alter neurodevelopment in modern human brain organoids
Building modern human brain organoids with the Neanderthal variant of a gene has provided a glimpse into the way substitutions in this gene impacted our species' evolution. (2021-02-11)

Researchers find parallels in spread of brain cancer in mammals, zebrafish
Virginia Tech scientists have identified a new zebrafish model that could help advance glioblastoma multiforme research. Glioblastoma is an aggressive form of primary brain tumor - fewer than one in 20 patients survive five years after diagnosis. (2021-02-11)

Sinai team builds first model acute myeloid leukemia progression using CRISPR
A research team led by the Icahn School of Medicine at Mount Sinai (Icahn Mount Sinai) has built the first cellular model to depict the evolution of acute myeloid leukemia (AML), from its early to late stages. By using gene editing technologies to alter genes that make cells malignant, the team was able to identify potential therapeutic targets for early disease stages. The study was reported in the journal Cell Stem Cell in February. (2021-02-10)

Novel protein could reverse severe muscle wasting in disease, aging and trauma
Muscle stem cells drive the tissue's growth and repair after such injuries. But growing these cells in the lab and using them to therapeutically replace damaged muscle has been frustratingly difficult. Australian researchers have discovered a factor that triggers these muscle stem cells to proliferate and heal. In a mouse model of severe muscle damage, injections of this naturally occurring protein led to the complete regeneration of muscle and the return of normal movement after severe muscle trauma. (2021-02-10)

Earliest signs of an immune response found in developing embryos
Researchers at the Centre for Genomic Regulation reveal that newly formed embryos clear dying cells to maximise their chances of survival. It is the earliest display of an innate immune response found in vertebrate animals to date. The findings may aid future efforts to understand why some embryos fail to form in the earliest stages of development, and lead to new clinical efforts in treating infertility or early miscarriages. (2021-02-10)

A recipe for regenerating bioengineered hair
Scientists have recently developed ways to grow a variety of useful items in laboratories, from meat and diamonds to retinas and other organoids. At the RIKEN Center for Biosystems Dynamics Research in Japan, a team led by Takashi Tsuji has been working on ways to regenerate lost hair from stem cells. In an important step, a new study identifies a population of hair follicle stem cells in the skin and a recipe for normal cyclical regeneration in the lab. (2021-02-10)

Researchers use hot nano-chisel to create artificial bones in a Petri dish
In research in the journal Advanced Functional Materials, a team at the NYU Tandon School of Engineering and New York Stem Cell Foundation Research Institute (NYSF) detail a system allowing them to sculpt, in a biocompatible material, the exact structure of the bone tissue, with features smaller than the size of a single protein -- a billion times smaller than a meter. (2021-02-09)

Identification of three genes that determine the stemness of gastric tissue stem cells
Tissue stem cells can self-renew and differentiate, supplying cells necessary for tissues at various developmental stages. However, detailed analysis in vivo is difficult, so the molecular mechanisms underlying the stemness of gastric tissue stem cells have remained a mystery. Here, by using organoids that mimic tissue structure and function in vivo and GeCKO screening to inactivate arbitrary genes, Alk, Bclaf3 and Prkra have been identified as genes regulating stemness. (2021-02-08)

New method developed for 'up-sizing' mini organs used in medical research
A team of engineers and scientists has developed a method of 'multiplying' organoids: miniature collections of cells that mimic the behaviour of various organs and are promising tools for the study of human biology and disease. (2021-02-08)

Molecular sleuthing identifies and corrects major flaws in blood-brain barrier model
A type of cell derived from human stem cells that has been widely used for brain research and drug development may have been leading researchers astray for years, according to a study from scientists at Weill Cornell Medicine and Columbia University Irving Medical Center. (2021-02-08)

Today's stem cell special: Small intestine on a plate!
A team of scientists from Japan have found success in growing small intestinal cells, akin to those found in the human body, from human-induced pluripotent stem cells. The scientists used a procedure they previously developed on embryonic stem cells for this discovery. They claim that the grown cells can be used for laboratory studies focusing on human small intestinal drug transport and metabolism. (2021-02-05)

New research sheds light on vision loss in Batten disease
Progressive vision loss, and eventually blindness, are the hallmarks of juvenile neuronal ceroid lipofuscinosis (JNCL) or CLN3-Batten disease. New research shows how the mutation associated with the disease could potentially lead to degeneration of light sensing photoreceptor cells in the retina, and subsequent vision loss. (2021-02-05)

Critical flaw found in lab models of the human blood-brain barrier
Cells used to study the human blood-brain barrier in the lab aren't what they seem, a new study has found, throwing nearly a decade's worth of research into question. (2021-02-05)

'Stealthy' stem cells better for treating tendon injuries in horses
Treating equine donor stem cells with a growth factor called TGF-β2 may allow them to avoid ''tripping'' the immune response in recipients, according to new research. (2021-02-04)

New stem cell therapy in dogs -- a breakthrough in veterinary medicine
A team of scientists in Japan has developed a novel method to induce stem cell generation from the blood samples of dogs. Through this technique, the scientists hope to advance regenerative therapies in veterinary medicine. This would mean that, in the near future, veterinarians might be able to reverse conditions in dogs that were previously thought incurable. (2021-02-03)

Two studies shed light on how, where body can add new fat cells
DALLAS - Feb. 3, 2021 - Gaining more fat cells is probably not what most people want, although that might be exactly what they need to fight off diabetes and other diseases. How and where the body can add fat cells has remained a mystery - but two new studies from UT Southwestern provide answers on the way this process works. (2021-02-03)

Researchers explore link between 'Alzheimer's gene' and COVID-19
A City of Hope-led research team found that the same gene that increases the risk for Alzheimer's disease, ApoE4, can increase the susceptibility to and severity of COVID-19. ''Our study provides a causal link between the Alzheimer's disease risk factor ApoE4 and COVID-19 and explains why some (e.g., ApoE4 carriers) but not all COVID-19 patients exhibit neurological manifestations'' said City of Hope's Yanhong Shi, Ph.D., co-corresponding author of the Cell Stem Cell study. (2021-02-03)

"Genetic SD-card": Scientists obtained new methods to improve the genome editing system
Researchers take a step in the development of genome editing technology. Currently it is possible to deliver genetic material of different sizes and structures to organs and tissues. This is the key to eliminating DNA defects and treating more patients. (2021-02-02)

Generation of conjunctivae in a dish
Researchers from Osaka University generated functional conjunctival tissue in a dish. By identifying the protein epidermal growth factor and keratinocyte growth factor for the development and maturation of conjunctival cells, respectively, they showed functional, mucin-producing conjunctival tissues can be formed from human induced pluripotent stem cells. This study could help with identifying novel drugs for dry eye syndrome and could further open new avenues for regenerative therapies. (2021-02-02)

Stem cell study illuminates the cause of a devastating inherited heart disorder
Penn Medicine scientists have uncovered the molecular causes of a congenital form of dilated cardiomyopathy (DCM)-- one of multiple congenital disorders caused by inherited mutations in a gene called LMNA. The scientists used stem cell techniques to grow human heart muscle cells containing DCM-causing mutations in LMNA. They found that these mutations severely disrupt the structural organization of DNA in the nucleus of heart muscle cells. (2021-02-01)

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