E Rohde

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Researchers gathered in Europe to discuss the use of tiny particles called extracellular vesicles (EVs), which could improve medical testing and treatment. They found that while EV technology is promising, there are major hurdles to overcome, such as creating consistent production methods and meeting safety regulations. They concluded that it's essential to establish specific guidelines for using EVs and to continue funding this research to help move it into practical use. Who this helps: This helps patients who could benefit from better diagnostics and targeted therapies.

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At the 2025 Annual Meeting of the International Society of Cell and Gene Therapy, scientists and industry leaders discussed new therapies using tiny particles called extracellular vesicles made from mesenchymal stromal cells. They focused on key issues like understanding how these therapies work, ensuring they can be made reliably, and getting the necessary approvals from regulators. The main takeaway was that these therapies are close to being available for patients, but successful progress depends on coordination between scientific research, regulatory approval, and business strategies. Who this helps: This research helps patients by moving promising new treatments closer to becoming available.

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This study tracked the levels of antibodies against COVID-19 in over 146,000 blood donations from Austrian donors over three years, focusing on how repeated infections affect immunity. Researchers found that more than 90% of donors had detectable antibodies by early 2023, with 97% of a smaller group experiencing at least one reinfection, and half of them having two or more reinfections. This indicates that the immune response is strengthening over time, which is important because it suggests that COVID-19 has become a regular disease in Austria, and our bodies are adapting. Who this helps: This helps patients recovering from COVID-19, as well as doctors managing their care.

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This research reviewed the potential uses of tiny bubbles called extracellular vesicles (EVs) in treating ear, nose, and throat (ENT) disorders. The study found that EVs can help identify head and neck cancers earlier, assist in repairing hearing-related nerve damage, and may also aid in improving conditions like sinus issues and smell loss. These findings matter because they point to new ways to diagnose and treat ENT diseases, which could lead to better patient outcomes. Who this helps: This helps patients with head and neck cancers, hearing loss, sinus problems, and smell disorders.

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This study looked at two apheresis systems, Optia and Alyx, to treat patients with too much iron in their blood, specifically those with hereditary hemochromatosis and dysmetabolic iron overload syndrome. A total of 186 procedures were performed, with Optia taking about 12 minutes and removing an average of 405 mL of blood, while Alyx took 26 minutes and removed about 442 mL. Both systems reduced iron levels similarly after three weeks, but Optia required less anticoagulant and had fewer complications, making it generally more efficient. Who this helps: This research benefits patients with iron overload conditions and the doctors treating them.

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This study looked at a technique to better analyze the guide RNA (gRNA) used in CRISPR gene editing therapies. Researchers combined mass spectrometry with a method called ion mobility, which allowed them to clearly identify 95% of the gRNA sequence, including its chemical modifications that traditional methods often miss. This advancement is crucial because it ensures more accurate characterization of gRNA, which can improve the effectiveness and safety of gene editing treatments. Who this helps: This benefits researchers and doctors working on gene editing therapies.

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This study examined how well antibodies from recovered COVID-19 patients stay effective after being stored for a long time, specifically in donated plasma. Researchers found that these antibodies remained stable and functional even after being stored for up to three years at very low temperatures and after going through multiple freezing and thawing cycles. This is important because it means that convalescent plasma can be stored for longer, making it more accessible for treating vulnerable patients without losing effectiveness. Who this helps: This helps patients, particularly those with weakened immune systems.

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Researchers studied the use of therapy derived from human umbilical cords during surgery to treat spina bifida in a 2-year-old girl. They found that applying these cord-derived extracellular vesicles during the procedure helped release the tethered spinal cord without causing any complications, and the child showed no changes in neurological function six months later. This approach could potentially improve recovery after spina bifida surgeries and may help protect the nervous system. Who this helps: This benefits patients with spina bifida and their families.

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This study looked at the rates of Parvovirus B19 (B19V) in blood donations in Salzburg, Austria, from 2012 to 2024, especially before, during, and after the COVID-19 pandemic. It found that the rate of B19V in blood donations dropped from 0.13% before the pandemic to 0.02% during it, but surged to 1.47% in 2024 after the pandemic. This increase is important because it indicates that more people could be exposed to this virus, which can cause serious health issues for vulnerable groups like pregnant women and those with weakened immune systems. Who this helps: This helps patients who might receive blood transfusions, particularly high-risk individuals.

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This study looked at how effective early therapy is for children and teens who have experienced trauma. The results showed that trauma-related symptoms significantly decreased after 3 to 6 months of treatment, and about 62.5% of the participants were female, with an average age of 14.5 years. It also found that not sharing a trauma story during therapy made it more likely for young people to stop attending sessions, and those who had been exposed to sexual violence were more likely to continue experiencing symptoms after treatment. Who this helps: This research benefits trauma-exposed children and adolescents, as well as their therapists and caregivers.

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This study looked at how the placement of a screw implant in different parts of the femur (thigh bone) affects how well the implant fuses with bone, especially when combined with specific treatments. Researchers found that a low dose of a protein called rhBMP-2 improved the bond between the implant and bone significantly in the upper part of the femur, while no such benefits were seen in the lower part, and the small extracellular vesicles did not help at all and even slightly hindered bone growth. Understanding these differences is crucial for improving bone healing after complex fractures, particularly for patients with osteoporosis. Who this helps: This helps patients with complex fractures, especially those affected by osteoporosis.

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This study looked at how efficiently mononuclear cells (MNCs) are collected during a therapy called extracorporeal photopheresis (ECP). Researchers found that the procedure generated high yields of MNCs, averaging about 55.3 million cells per kilogram of body weight, with a collection efficiency of 62% for these cells. Reducing the time needed for this therapy could make it easier for patients, while still achieving effective results. Who this helps: Patients undergoing ECP therapy for conditions like skin cancer or organ transplant rejection.

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This paper focuses on extracellular vesicles (EVs), small particles released by cells that can provide important information about health and disease. It updates guidelines for researchers on how to study EVs effectively, highlighting recent advances and ongoing challenges in the field. By consolidating feedback from over 1,000 scientists, the updated guidelines aim to enhance the understanding and use of EVs in both basic research and clinical settings. Who this helps: This benefits researchers and healthcare professionals working with cell biology and diagnostics.

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This study looked at how combining small particles from human umbilical cord cells with a bone growth factor can help heal bone defects in rats with osteoporosis. The researchers found that when these two treatments were used together, there was better bone healing compared to using either treatment alone, with significant improvements in bone strength and union. Specifically, the combination led to increased bone stiffness and better consolidation of the defects after six weeks. Who this helps: This research benefits patients with osteoporosis who need better treatments for bone healing.

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This study looked at how often people who had COVID-19 got reinfected by analyzing blood donations from nearly 118,000 people in Austria over two years. It found that while 90% of healthy adults had antibodies from their initial infection by early 2023, the actual reinfection rate was 88%, much higher than the 59% reported by participants themselves, with 26% of reinfections going unnoticed. This is important because it shows that many people can get reinfected without realizing it, highlighting the need for ongoing monitoring and better public health strategies. Who this helps: This benefits public health officials and policymakers working on COVID-19 management.

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This study looked at a new machine for a treatment called extracorporeal photopheresis (ECP), which helps patients with certain diseases by processing their blood to collect specific types of cells. The researchers compared this new machine, called the Amicus Blue inline system, with two older systems and found that it collected fewer blood cells efficiently: the Amicus collected about 56 cells (on average) compared to 74 for the best system (Therakos) and 65 for another system (Spectra Optia). This matters because while the new system can still do the job, it performs worse than the established options, leading to potential concerns about its effectiveness for patient treatment. Who this helps: This helps patients who rely on ECP for their treatments, as well as doctors choosing the right equipment.

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This study looked at how heparin, a blood thinner, affects tiny RNA molecules called microRNAs in different types of stromal cells, which are important for tissue repair and immune response. The researchers found that heparin changes the levels of these microRNAs in cells from human bone marrow, umbilical cord, and fat tissue, impacting cell growth, death, and specialization. This matters because it shows that heparin might also help improve treatments that use stromal cells for healing injuries and diseases. Who this helps: This helps patients needing regenerative therapies and doctors using stromal cell treatments.

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This study examined how genetic differences in blood types between donors and patients can affect blood transfusions. Researchers found significant mismatches in blood group antigens between African patients and the predominantly Caucasian Austrian blood donors, making it harder to find compatible blood for patients who need transfusions. Specifically, in categories like the MNS and Duffy blood systems, these differences were substantial, with a statistical significance of less than 0.0001. This disparity emphasizes the need for recruiting more blood donors from African backgrounds and improving blood matching practices to ensure better care for diverse patient populations. Who this helps: Patients who require blood transfusions, particularly those of African descent.

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This study looked at using tiny particles derived from umbilical cord stem cells to help heal rotator cuff injuries in sheep. The researchers found that applying these particles improved tendon healing and reduced inflammation, with notable improvements shown in MRI scans and tissue samples: healing scores were better (p = 0.031) and inflammation was lower (p = 0.015). This is important because rotator cuff repairs often fail, and finding new methods to enhance healing can lead to better recovery for patients. Who this helps: Patients with rotator cuff injuries.

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The report from a major scientific meeting focused on the latest developments in using tiny particles called extracellular vesicles (EVs) for treating diseases. Researchers discussed how both natural and modified EVs can help fight conditions like psoriasis and osteoarthritis, with some already being tested in people. This matters because effective use of EVs could lead to new therapies that improve health outcomes for patients with these and other diseases. Who this helps: This helps patients suffering from diseases like psoriasis and osteoarthritis.

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This study explored whether the Epstein-Barr virus (EBV) contributes to the development of Post-COVID-19 Syndrome (PCS) in people who had mild or no symptoms from COVID-19. The research found that 18% of those infected with SARS-CoV-2 went on to experience PCS symptoms lasting up to a year, but there was no evidence of EBV reactivation in these individuals. This is important because it clarifies that PCS in otherwise healthy adults is not linked to EBV, helping to better understand the causes of long-term COVID-19 symptoms. Who this helps: This benefits patients experiencing Post-COVID-19 symptoms and healthcare providers seeking effective treatment approaches.

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This study looked at a new treatment called VERVE-101, which uses a technique called CRISPR to permanently change DNA in order to reduce "bad" cholesterol levels. In experiments with monkeys, the treatment was found to lower a protein linked to cholesterol by 83% and the cholesterol levels themselves by 69% after about 476 days. The treatment was safe, showing only temporary mild side effects, and it did not affect reproductive cells in a way that would pass changes to future generations. Who this helps: This benefits patients with high cholesterol, especially those with genetic conditions like familial hypercholesterolemia.

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This study focused on a new way to deliver a CRISPR therapy to the liver using special nanoparticles that don't rely on a common receptor that some patients lack. The researchers found that by modifying these nanoparticles, they could increase liver editing from 5% to 61% in certain monkeys, and this treatment led to a significant decrease in a specific protein related to cholesterol levels, achieving reductions of up to 89% six months later. This matters because it provides a potential treatment option for patients who cannot use traditional methods due to their genetic conditions. Who this helps: Patients with homozygous familial hypercholesterolemia and other liver-related disorders.

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The study examined how to improve the accuracy of guide RNA used in CRISPR gene editing. Researchers found a way to detect and measure tiny impurities in the RNA, achieving precision down to less than 1%. This matters because ensuring the guide RNA is correct can enhance the effectiveness and safety of CRISPR-based treatments for genetic disorders. Who this helps: This benefits patients with genetic diseases who may receive CRISPR therapies.

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This study focused on a new method for preserving human upper limbs for transplantation, called ex vivo normothermic perfusion (EVNP). Researchers compared this method to traditional cold storage (SCS) by testing 20 human limbs and found that limbs preserved with EVNP showed significantly less cell damage (about 29% damage) compared to those in cold storage (about 90% damage). This method allows for longer preservation times and better assessment of limb quality before transplantation, which is essential for successful surgeries. Who this helps: This benefits patients needing limb transplants and the doctors performing the surgeries.

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This study looked at how long antibodies from a past COVID-19 infection last in healthy people by testing blood donors in Austria for a year after they were infected. They found that while some antibodies decreased, others remained stable, with about 14% of people still experiencing COVID-related symptoms months later. Understand how these antibody levels change is important for managing long-term health after infection and understanding immunity. Who this helps: This helps patients and healthcare providers understand COVID-19 immunity and long-term health effects.

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This study looked at how the immune system affects the likelihood of infections in patients with spinal cord injuries. Researchers found that patients who developed infections had higher levels of certain immune cells (neutrophils and eosinophils) and lower levels of others (lymphocytes), which helps identify those at risk. This matters because recognizing patients with a higher chance of infection early on can improve their treatment and recovery. Who this helps: This helps patients with spinal cord injuries and their doctors.

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This study looked at how well certain statistical tools can predict significant changes in Lake Simcoe in Ontario, Canada, which has been improving from a previously unhealthy state caused by excessive nutrients. Between 1980 and 2019, researchers found that the lake shifted from being dominated by algae to having clearer water, with clearer trends seen in some measurements like water clarity, although not all indicators consistently reflected this improvement. Understanding these warning signs is important because it can help manage and protect lake ecosystems more effectively. Who this helps: This research benefits environmental managers and scientists working to restore and monitor lake health.

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The study focused on how to produce extracellular vesicles (EVs) in large quantities, which is important for developing medical treatments using these tiny particles. During a workshop in October 2021 called "massivEVs," experts from academia and industry discussed the challenges of scaling up EV production. They agreed on key issues and potential solutions, highlighting a promising future for EV-based therapies. Who this helps: This benefits researchers and developers creating new medical therapies.

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This study looked at how long donors of convalescent plasma (used to treat COVID-19) have high levels of useful antibodies. Researchers found that donors with higher antibody levels could donate for about 134 days after their first donation, while those with lower levels could only donate for about 53 days. Understanding the right timing for donations is important because it helps plasma collection centers target donors with the most effective antibodies, improving treatment for COVID-19 patients. Who this helps: This helps patients recovering from COVID-19 who need effective treatment options.

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This study examined how human platelet lysate (HPL) affects the growth of stromal cells, which are important for tissue repair. Researchers found that HPL caused a significant increase in genes responsible for cell growth, especially the factors STAT3 and MYC. When they blocked these factors, the cell growth decreased, showing that HPL promotes cell proliferation mainly through these pathways. Who this helps: This benefits patients undergoing tissue repair and regeneration therapies.

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This paper studied the potential use of extracellular vesicles (tiny particles released from cells) in treating sensorineural hearing loss, a serious condition with no current effective drugs. It found that these vesicles could help manage inflammation and other problems in the inner ear, and they can be manufactured safely for human use. This matters because it opens up new ways to treat complex inner ear issues, improving outcomes for those with hearing loss. Who this helps: Patients suffering from hearing loss, particularly those with inner ear inflammatory conditions.

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This research focused on creating a new method to produce cell-derived vesicles (CDVs), which are tiny bubbles that can carry important biological materials, like proteins, in large quantities. The team developed a technology called BioDrone™ that generates these vesicles much more efficiently than natural methods, showing that they can be just as effective as the original cells they come from. Establishing a reliable manufacturing process for these vesicles is important because it allows for easier testing and potential use in treating diseases linked to inflammation and tissue damage. Who this helps: Patients with inflammatory and degenerative diseases.

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This study looked at how limb preservation methods affect muscle metabolism after amputation. Researchers examined 14 human arms, with 7 limbs preserved using a technique called EVNLP for about 41.6 hours, while the other 7 were stored at lower temperatures. They found that after 24 hours, significant changes in muscle metabolism occurred, including a decrease in taurine and an increase in tryptophan, both linked to potential damage in muscle cells. Who this helps: This research benefits doctors and medical teams working on limb preservation techniques for amputee patients.

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This study looks at how small extracellular vesicles (EVs) connect with cell membranes to share important biomolecules. The researchers found that these vesicles strongly interact with certain areas of membranes and that when they break apart, the biomolecules inside spread differently than expected. Understanding this process can help improve treatments that use EVs to deliver therapies for various diseases. Who this helps: This benefits patients who may receive therapies delivered via EVs.

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This study looked at the presence of specific antibodies in 1,022 female blood donors in Austria, which can cause serious complications during blood transfusions. Researchers found that about 7.7% of these donors had antibodies that reacted with white blood cells, mostly linked to human leukocyte antigens (HLA), and a small number (0.7%) had antibodies against human neutrophil antigens (HNA). These findings are important because they suggest that screening female donors for these antibodies could enhance the safety of blood transfusions, especially for COVID-19 treatments. Who this helps: This benefits patients receiving blood transfusions and healthcare providers ensuring their safety.

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This study looks at human platelet lysate (HPL), a substance made from the blood of healthy donors that can replace animal-based supplements in growing cells used for medical treatments. The research highlights the importance of maintaining high safety and quality standards for HPL to ensure that the cells produced are safe and effective. It emphasizes that using HPL can improve the growth of these cells while reducing reliance on animal products, which is beneficial for faster and safer medical therapies. Who this helps: This helps patients receiving cell-based therapies and doctors developing these treatments.

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This study looked at the presence of antibodies against the SARS-CoV-2 virus in over 20,000 blood donors in Austria. They found that about 2.5% of these donors had antibodies, with younger donors showing higher rates of infection. This information is important because it helps better understand how many people have been infected, even if they didn’t show symptoms. Who this helps: This helps public health officials and researchers understand the spread of COVID-19.

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This study looked at using tiny particles called extracellular vesicles, made from human stem cells, to help reduce inflammation in the inner ear before inserting a cochlear implant. A 55-year-old patient with Menière's disease received these stem cell-derived vesicles during surgery, marking the first time this treatment was given to a human. This finding is important because it shows that using these vesicles during cochlear implant surgery might help to lessen side effects, which could improve outcomes for patients. Who this helps: Patients undergoing cochlear implantation, particularly those with inflammatory conditions like Menière's disease.

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This paper looks at how small extracellular vesicles, which are tiny bubbles released by cells, merge with cell membranes. The researchers provided new details about this process, showing that certain structural features of these vesicles are crucial for their fusion with the membranes. This understanding is important because it could lead to advancements in drug delivery and therapies involving these vesicles. Who this helps: This benefits researchers and medical professionals working in drug development and delivery methods.

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This study looked at how heparin and its related compounds are used in advanced cell therapies, especially for treating blood clots and potential COVID-19 complications. The researchers found that these substances not only prevent blood clots but also have a role in developing new types of cell therapies. This is important because it may lead to better treatment options for serious conditions, helping to save more lives and improve patient outcomes. Who this helps: Patients, especially those with blood clot issues or COVID-19.

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This study looked at how delivering tiny particles called extracellular vesicles (EVs) directly into the site of a spinal cord injury can help improve recovery in rats. The researchers found that injecting EVs right at the injury led to better motor function scores and reduced inflammation compared to giving them through the bloodstream, suggesting a more effective treatment method. This matters because better recovery options can significantly improve the quality of life for those with spinal cord injuries. Who this helps: This helps patients with spinal cord injuries.

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Researchers used a gene-editing tool called CRISPR to permanently disable a gene in monkeys' livers that controls cholesterol production, delivering it through tiny fat particles injected into the bloodstream. After a single injection, the monkeys' cholesterol dropped by about 60% and stayed low for at least 8 months without any additional treatment. This proves that gene editing could offer heart disease patients a one-time treatment instead of taking cholesterol drugs for life.

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This study looked at a new way to count and analyze tiny particles called extracellular vesicles (EVs) that are important for understanding various biological processes. Researchers developed a method using fluorescent markers to more accurately measure and classify EVs, which improved detection limits and allowed them to identify specific EV proteins. They found that their method could effectively differentiate true EVs from other particles, which is crucial for research and potential medical applications. Who this helps: This helps researchers and doctors working on therapies involving EVs, particularly in regenerative medicine and diagnostics.

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This study looks at using tiny particles called extracellular vesicles (EVs) from certain types of cells to help treat COVID-19. The researchers found that while there's promise in using these EVs from mesenchymal stromal cells, no official support is given for their use yet because more research and safety checks are needed. This matters because effective treatments for COVID-19 are still crucial as the pandemic continues. Who this helps: Patients suffering from COVID-19.

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This study looked at tiny particles called extracellular vesicles (EVs) from human stem cells to see if they could protect hearing after exposure to loud noise. The researchers found that applying these EVs to the inner ear reduced hearing loss and protected important cells responsible for hearing from damage. This matters because it offers a potential new treatment for preventing hearing loss, an area that currently lacks effective therapies. Who this helps: Patients at risk of hearing loss from loud noises.