Articles tagged with Cell Transplantation
Scientists at University of Toronto and Sinai Health created transplants with genetic modification, persisting long-term in mice without immune suppression. This breakthrough may transform cell therapies for incurable diseases, making transplantation safer and more widely available.
Researchers have developed a method to camouflage stem cell-derived transplants, avoiding immune rejection and tumor formation. Genetically engineered liver cells can persist in the body despite lack of immune matching, offering a potential solution to organ donor shortage.
Researchers at the University of Alberta have created a new process to produce insulin-producing pancreatic cells from patient stem cells, achieving a 90% success rate. The breakthrough could lead to injection-free glucose control in people with diabetes and eliminate the need for anti-rejection drugs.
A team of researchers at Kyoto University has found that a deficiency in the enzyme B4GALT3 inhibits tumor growth in mice. The study shows that reduced glycosylation on T cell surfaces correlates with increased CD8+ immune cells infiltrating tumors.
Researchers develop 3D-printed device to encapsulate insulin-producing pancreatic cells and electronic sensors in the eye. The device enables cell-based therapy for Type 1 or Type 2 diabetes, eliminating the need for sutures and allowing real-time monitoring.
A new clinical trial has shown that infusing immune cells from living donors into recipients before transplantation may reduce the need for lifelong immunosuppressant medication. The treatment involves infusing donor-derived regulatory dendritic cells, which help the recipient's immune system distinguish between foreign and self-cells.
A small molecule drug improved the fitness of hematopoietic stem cells used in cell transplants, potentially enhancing the success of procedures like ex vivo gene therapy. The study found that targeting extracellular vesicles relieved stress on cells outside the body, improving their performance when transplanted back in.
A new study found that living donor liver transplant access optimizes the timing of transplant for older, frail cirrhosis patients. Patients with moderate to severe frailty, short stature, and low MELD scores benefited from LDLT, reducing waitlist mortality and improving post-transplant outcomes.
Dr. Hung Nguyen is studying how medium chain fatty acid foods like coconut oil and avocados affect GVHD severity and mortality in transplant patients. His goal is to develop a dietary approach that reduces inflammation and corticosteroid use, improving patient outcomes for blood cancers.
A phase I clinical trial shows that transplanting P63+ lung progenitor cells can repair damaged lung tissue in patients with chronic obstructive pulmonary disease (COPD), improving breathing and quality of life. The treatment increased lung function, reduced symptoms, and even repaired mild emphysema in some patients.
Scientists at UCSF have developed an artificial kidney that can mimic key functions of a real kidney. The bioreactor keeps kidney cells alive for up to seven days and has shown promising results in animal trials. If successful, the device could improve treatment for kidney disease, making it more effective, tolerable, and comfortable.
Researchers have successfully transplanted human microglia cells into mouse retina, creating a model for studying treatments for diabetic retinopathy, glaucoma, and age-related macular degeneration. The study demonstrates the potential of microglial replacement therapy to treat retinal and central nervous system diseases.
A phase I trial of cultivated autologous limbal epithelial cell transplantation (CALEC) has shown positive results in four patients with severe chemical burns, restoring cornea surfaces and improving vision. The treatment uses a patient's own stem cells grown on a graft, offering hope to patients with untreatable vision loss and pain a...
Researchers at CityU and HKUMed developed genetically modified human neural stem cells that promote neural circuit reconstruction, reduce glial scar accumulation, and enhance axon outgrowth. The therapy demonstrates potential for treating severe spinal cord injuries with functional recovery.
Scientists from the University of Copenhagen found that cancer cells have different ribosomes compared to other cells, which produce specific proteins. This discovery may lead to improved treatments in regenerative medicine and potentially better treatments for cancer.
Researchers at the University of Copenhagen have discovered a way to replace diseased and aged brain cells with new ones, which could lead to treatments for neurodegenerative diseases like Huntington's disease and multiple sclerosis. The study used humanized mice models to test the effectiveness of glial cell transplantation.
A Swiss patient has achieved 20 months of HIV remission after a bone marrow transplant performed as part of cancer treatment. The patient's cells remained HIV-permissive despite the absence of a protective mutation, yet the virus was still undetectable after antiretroviral therapy was discontinued.
Researchers identify key protein interactions that control the body's immune response during liver transplantation, leading to improved transplant survival rates. The study found that a specific communication pathway between CEACAM1 and TIM-3 proteins plays a crucial role in controlling the immune response.
Researchers found that young and healthy human glial progenitor cells can outcompete older and diseased cells in the adult brain, replacing them with healthier ones. This breakthrough has strong therapeutic implications for treating neurological disorders like Huntington's disease.
Mass General Brigham researchers have made key improvements to Parkinson's disease cell therapies by using regulatory T cells to supplement neuronal cell therapy. The study shows that co-transplanting regulatory T cells with dopaminergic neurons increases survival and improves behavior recovery in rodent models.
Researchers have developed a new standard for preventing graft-versus-host disease (GVHD) after stem cell transplant, showing improved efficacy and reduced side effects compared to the current gold standard. The new regimen achieved higher rates of patient survival without GVHD complications, making it a more effective option for patie...
Scientists have successfully converted human pluripotent stem cells into purified pituitary cells that secrete adrenocorticotropic hormone (ACTH), a hormone normally produced by the pituitary gland. Transplantation of these cells into mice with hypopituitarism resulted in long-lasting improvement in ACTH levels.
Researchers developed a stem cell-based regenerative therapy that repairs damaged tissue and improves heart function in preclinical trials. The treatment involves transplanting non-beating heart cells into the damaged heart, reducing the risk of adverse side effects and improving the chances of recovery for heart failure patients.
Researchers at Weill Cornell Medicine have successfully converted human stomach stem cells into insulin-secreting cells, offering a promising approach to treating type 1 and severe type 2 diabetes. The transplants reversed disease signs in mouse models, suggesting good durability.
A study found that measuring three potential biomarkers on day three after a stem cell transplant can identify patients at risk of sinusoidal obstruction syndrome (SOS). Patients with positive scores were 9.3 times more likely to develop SOS and more likely to die within 100 days.
Researchers found variant cells in lungs of IPF patients that can drive fibrosis and inflammation. These cells may be targeted for future therapy, offering new hope for treatment.
Scientists have developed a new method to deliver genetic information to stem cells using nanoparticles coated with a specific polymer, enabling more efficient control over cellular differentiation. This innovation has the potential to improve the efficiency and effectiveness of regenerative medicine treatments.
Cedars-Sinai investigators have discovered a novel way to treat amyotrophic lateral sclerosis (ALS) and retinitis pigmentosa using human induced pluripotent stem cells. The new approach uses cells derived from iPSCs that are renewable, scalable, and can delay disease progression in rodents.
A phase 3 clinical trial shows that motixafortide combined with standard therapy increases the number of stem cells that can be harvested in over 92% of patients. The combination also enhances the collection of primitive stem cells, which have greater potential for reconstituting blood cell types.
A research team from Université Laval has identified a method to save corneal cells from death using healthy mitochondria, reducing mortality rates from 60% to 10%. This approach demonstrates high therapeutic potential for mitochondrial injection, which could maintain vision without transplantation if diagnosed at an early stage.
A new study by Weill Cornell Medicine investigators found four distinct types of beta cells in the pancreas, with cluster 1 beta cells producing more insulin than others and appearing better able to metabolize sugar. The loss of these high-functioning beta cells may contribute to type 2 diabetes development.
Researchers at University of Technology Sydney have successfully created personalized 'bio-inks' from patients' own stem cells, which are then used to 3D-print cardiac tissues to repair areas of dead tissue. This technology shows promise in treating heart failure and may reduce the need for expensive and traumatic heart transplants.
A patient with Parkinson's disease has received a pioneering stem cell-based transplant at Skåne University Hospital in Sweden. The procedure aims to replace lost dopamine nerve cells and is part of a clinical trial testing the safety and efficacy of this innovative treatment, which could potentially help millions of people worldwide.
After a stem cell transplant from a donor with the CCR5-delta 32 mutation, a man was able to stop his antiretroviral treatment without viral resurgence. Four years later, no HIV virus could be detected in his body, indicating probable cure. This case joins two previous reported cases and offers further proof that HIV can be cured.
Researchers have successfully converted pluripotent stem cells into hematopoietic stem and progenitor cells using optimized transcription factors. The resulting PSC-derived cells generated all types of white blood cells in mice without giving rise to tumors or leukemias, suggesting a promising future for PSC-based transplant therapies.
Researchers discovered that bone marrow transplants can halt the development and progression of brain blood vessel disease in adults with sickle cell disease. The study found that receiving stem cell transplants led to positive changes in blood vessels, reducing the risk of stroke among patients with the condition.
A new Pitt study reframes understanding of graft-versus-host disease, suggesting that GVHD is locally maintained by donor T cells in target tissues. The research, published in Immunity, offers an alternative model that could guide development of novel therapies and improve outcomes for stem cell recipients.
Researchers at Children's Hospital of Philadelphia have developed a custom-built application to automate the determination of engraftment after hematopoietic stem cell transplant. The tool has been shown to improve accuracy of reported engraftments, reducing errors in neutrophil and platelet engraftment reporting.
Researchers at UCSF have developed a novel approach to prevent antibodies from triggering immune rejection of engineered therapeutic and transplant cells. By using a decoy receptor, they can capture the antibodies and take them out of circulation before they can kill the therapeutic cells.
A wafer-thin device called NICHE has been developed to treat Type 1 diabetes by delivering islet cells and immunotherapy directly into the body. The device restored healthy glucose levels and eliminated symptoms for over 150 days, avoiding severe adverse effects of anti-rejection therapy.
A team of scientists from TIBI, UIC, and POSTECH has elucidated key points on how cartilage generation is facilitated and alternative bone formation can be avoided. They found optimal conditions for better cartilage regeneration while reducing excessive cartilage formation using human mesenchymal stem cells.
Researchers describe results using cladribine-based combination epigenetic and immunotherapy in MCL, achieving an increased overall survival greater than 40 months with durable remissions without relapse for longer than 5 years. The approach is promising in the treatment of MCL and potentially other previously treatment-refractory canc...
A research team at Penn Vet identified p63 as a key factor in inappropriate tissue regrowth after infection, which may lead to new treatments. By removing p63, basal cells can differentiate into functional alveolar cells, promoting lung recovery.
A team of researchers discovered that the gut microbiome plays a critical role in driving granulopoiesis, a process formation of granulocytes, in mice models. The study found that alterations in the gut microbiome composition induced by neutropenia stimulate reactive granulopoiesis via interleukin 17A secreted by T cells, promoting neu...
Scientists at Texas A&M University found that transplanting intestinal epithelial stem cells can repair the gut and reduce inflammation, potentially preserving cognitive function after a stroke. The study suggests that targeting gut health may be key to developing more effective stroke therapies.
Researchers found a drastic decrease in bacterial abundance on the skin of patients with graft-versus-host disease, while an increased occurrence of staphylococci was observed. This discovery may lead to improved treatment measures for GVHD, which affects approximately 30-70% of stem cell transplant recipients.
A new Dutch study found that lockdowns caused significant mental health impacts on people with pancreas or islet transplants for type 1 diabetes. Glycaemic control worsened during the lockdown period due to reduced physical activity and increased insulin use, while anxiety and stress levels rose significantly among transplant patients.
Researchers at MUSC found that extracting and isolating Treg cells and transplanting them back into the same system successfully treats osteogenesis imperfecta for a year. The treatment results in stronger bones, increased osteoblast numbers, and decreased osteoclast numbers.
A novel stem cell-gene therapy has been shown to be safe in humans, with no serious side effects reported in the first trial. The treatment targets motor neurons that die in patients with amyotrophic lateral sclerosis (ALS), a fatal neurological disorder.
A KAUST-led research team identified two drug treatments that boost the activity of molecules involved in cell adhesion, enhancing the ability of blood-forming stem cells to enter the bloodstream and produce new blood. This breakthrough could lead to improved bone marrow transplant success for leukemia patients.
A new study successfully introduces healthy photoreceptor cells derived from stem cells into the retinas of dogs, marking significant progress toward a cell-based therapy for blindness. The treatment enables cells to survive and form connections with existing retinal cells, paving the way for a regenerative medicine approach.
Researchers at TU Dresden have developed a method to produce high numbers of human photoreceptor cells that can incorporate into partially degenerated mouse retinas and restore daylight perception. The incorporated photoreceptors developed characteristics of normal photoreceptors and could detect daylight in mice with damaged eyesight.
The Edmonton Protocol team has reported that islet transplantation is an effective therapy for patients with difficult-to-control Type 1 diabetes, with a high rate of graft survival and insulin independence. The procedure has been shown to stabilize blood sugar levels and improve quality of life for patients.
Researchers at University of Missouri, Georgia Tech and Harvard University have successfully demonstrated a new Type 1 diabetes treatment in large animal models. By transplanting pancreatic islet cells with a molecule called FasL, they prevent rogue immune cells from destroying the transplanted cells.
A new biomaterial-based technique has improved islet transplants for type 1 diabetes treatment by inducing permanent immune acceptance. The microgels educate the immune system to accept the graft, making it possible to regulate blood glucose levels without chronic immunosuppression.
Researchers have developed a novel biomaterial that promotes immune tolerance and allows islets to survive after transplant without the need for long-term immunosuppression. This breakthrough enables patients with type 1 diabetes to control their blood sugar levels without lifelong medication.
Scientists at Johns Hopkins Medicine have successfully cultivated human muscle stem cells capable of renewing themselves and repairing muscle tissue damage in mice. The self-renewing stem cells were created by reprogramming laboratory-grown human skin cells, which then differentiated into specific cell types using a nutrient-rich broth.
Researchers at the University of Minnesota developed a new method of islet cryopreservation that enables high viability and function in a clinically scalable protocol. This breakthrough discovery could revolutionize the supply chain for islet isolation, allocation, and storage before transplant.
A woman with HIV has achieved 14 months of undetectable HIV levels following a cord blood stem cell transplant to treat acute myeloid leukemia. The study suggests that CCR5Δ32/Δ32 cord stem cell transplantation may be an effective method for achieving HIV remission and cure in individuals requiring such transplants.
Researchers have developed a personalized dosing regime for anti-thymocyte globulin (ATG) to improve the success of stem cell transplants in children with leukemia. The new approach led to better immune recovery and higher survival rates compared to standard treatment.