Articles tagged with Bone Marrow
Researchers reveal how expansion of bone marrow fat promotes immunosuppressive PD-L1 signaling, leading to enhanced osteoclast activity and accelerated bone loss. Reducing bone marrow fat improves bone structure.
A large registry study identifies a specific genetic mismatch linked to severe acute graft-versus-host disease (aGVHD) after cord blood transplantation, tripling the risk of life-threatening complications. Researchers found that a particular HLA combination in donors and recipients increased aGVHD risk by threefold.
A new study has mapped the structure and function of healthy children's bone marrow cells, revealing age-dependent differences in blood cell formation. The atlas provides a valuable resource for researchers to better understand childhood leukemia and other blood disorders.
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.
Brazilian researchers analyzed over 60 scientific articles on microplastics and their impact on bone health. They found that the materials can impair bone marrow stem cells, accelerate cell aging, and promote inflammation, leading to potential bone weakening and fractures.
Researchers discovered that components in young human blood serum can restore youthful properties to skin when combined with bone marrow cells. This study highlights the role of bone marrow in supporting skin health and may lead to novel approaches to address age-related changes.
Researchers mapped the bone marrow T-cell atlas in CML patients, identifying a CML-specific T-cell population and its interaction with the bone marrow microenvironment. The study found that CD8 TE cells play a key role in regulating the CML immune microenvironment.
A new partnership between Murdoch Children's Research Institute and Retro Biosciences will advance personalized therapies for children and adults with bone marrow failure, leukaemia, and other blood disorders. The $35M agreement aims to develop autologous therapies using the breakthrough blood stem cell discovery.
A new partnership between Murdoch Children's Research Institute and Retro Biosciences aims to develop personalized blood stem cell treatments for children and adults with blood disorders. The collaboration has the potential to prevent complications from mismatched donors by using a patient's own perfectly matched cells in transplants.
A team of scientists has identified seven genes that can transform embryonic stem cells into blood precursor cells, paving the way for a new era in regenerative medicine. The research, published in the journal Blood, uses an unbiased genome-wide screen to uncover the genes involved in hematopoietic stem cell fate.
A Phase 1 clinical trial has successfully used banked deceased donor stem cells for an allogeneic transplant, expanding transplant options for patients with aggressive blood cancers. This innovative approach aims to reduce wait times and uncertainty around donor matching and collection.
A highly sensitive bone marrow test has shown to double survival rates for patients with AML mutations in NPM1 and FLT3 genes, allowing for early detection of potential relapse. This trial indicates that regular molecular testing can improve long-term survival rates by restarting treatment earlier.
A new imaging technique developed by IU scientists allows for the visualization of 25 cellular markers in intact bone marrow tissue without disruption. This advancement could support future drug development and therapies for conditions involving bone marrow.
A new study found that mesenchymal stem cell-derived extracellular vesicles significantly enhance survival and facilitate substantial peripheral blood recovery in mice exposed to high-dose irradiation. The treatment promoted hematopoietic recovery, with increases in red blood cell, platelet, white blood cell, and hemoglobin levels.
Aging individuals experience bone loss despite physical activity, highlighting the importance of MSCs in regulating bone mechanoresponse. The new 3D bone marrow analog reveals that trabecular volume affects MSC response to mechanical signals, with higher strains associated with older densities and increased F-actin production
Researchers have developed a way to activate adult stem cells from human bone marrow, enabling their expansion outside the body for use in bone marrow regeneration. The new method significantly improves transplant success rates for patients with genetic disorders or those who require a bone marrow transplant.
An international team of scientists has molecularly decoded blood stem cell differentiation pathways using state-of-the-art sequencing methods. They identified a crucial surface protein, PD-L2, which suppresses the immune response by preventing T cell activation and release of inflammatory substances.
Researchers developed a predictive model for neuroblastoma bone marrow metastasis using AI, identifying key genomic and single-cell transcriptomic alterations. The study also uncovered the role of oxidative phosphorylation, transketolase, and immune checkpoint genes in BBM progression.
Researchers at UCSF have discovered that human lung tissue contains hematopoietic stem cells (HSCs) capable of producing red blood cells, platelets, and immune cells. The finding suggests the lungs could be a potent source for life-saving stem cell transplants, particularly for patients with leukemia.
This disorder has diverse etiologies, variable presentations, and different therapeutic responses. The proposed diagnostic algorithm can differentiate pediatric MF subtypes to improve patient outcomes.
A rare case report highlights the association between systemic mastocytosis and severe osteoporosis in a young adult patient, emphasizing the importance of early diagnosis and consideration of SM as an underlying cause. The study aims to raise awareness about this underrecognized condition and its potential impact on bone health.
A study from the University of Gothenburg found that testosterone increases damage following a heart attack by increasing white blood cell release from bone marrow. This affects both men and women, but has a greater impact on male hearts.
Researchers at the University of Pennsylvania School of Engineering and Applied Science have developed a platform that emulates human marrow's native environment. The device, called a bone marrow-on-a-chip, generates functional human blood cells and models the immune system's response to infections, paving the way for advanced drug dev...
Gut bacteria that cross a weakened intestinal barrier induce epigenetic changes in bone marrow, generating trained immune cells primed to respond more efficiently to infections. However, this amplified immune response also contributes to the development of inflammatory diseases such as cardiovascular and neurodegenerative conditions.
Breast cancer cells can live for years in bone marrow after remission, leading to disease recurrence in approximately 40% of patients. A study found that mesenchymal stem cells support the cancer cells by donating essential proteins, making them more aggressive and drug-resistant.
Researchers found that both methods restored blood circulation in about 30% of patients, with no difference in survival or quality of life. The study's results may impact future guidelines for cardiac arrest treatment.
Researchers found a link between EVs in blood and tissue damage caused by diseases like leukemia, paving the way for a new diagnostic marker. Elevated levels of EVs in blood correlated with tissue damage in mice, suggesting their potential as a biomarker for monitoring cancer patients.
Researchers from USC and Caltech develop a new method to study hematopoietic stem and progenitor cells within the bone marrow without extracting them. This breakthrough could inform efforts to optimize bone marrow transplantation and provide insights into various health conditions, including cancer and heart disease.
New research suggests that exposure to vape and e-cigarette residue on surfaces during pregnancy can cause immune system damage in unborn babies. The study found that maternal third-hand exposure to e-vapour results in significant, long-lasting effects on lung and bone marrow immune cell responses.
Researchers suggest that hematopoietic stem and progenitor cells in the AML niche may retain an inflammatory memory, potentially leading to long-term functional consequences. This finding has significant implications for understanding the biology of acute myeloid leukemia (AML) and developing new cancer therapies.
Melbourne researchers have developed a breakthrough in creating lab-grown human blood stem cells, which can be used to treat childhood blood disorders. The cells closely mimic those found in the human embryo and can create specific matched blood cells for transplantation, reducing complications and addressing donor shortages.
Scientists found islands of highly potent immune cells in the bone marrow close to glioblastoma tumors, which play a central role in defending against cancer. This discovery may lead to innovative therapies and could improve patients' chances of survival.
Researchers found a significant association between the KIT M541L variant and mastocytosis diagnosis in patients with systemic and cutaneous mastocytosis. The variant was identified in 19 individuals, mostly diagnosed with systemic mastocytosis, but without significant differences in symptomatology.
Researchers identify key proteins and signaling pathways for personalized treatment, enabling early detection of aggressive tumors. The study provides a crucial resource for developing new therapies and tests to guide treatment.
A study published in Blood reveals that hematopoietic stem cells in the bone marrow of genetically identical middle-aged mice aged differently. The team found that subtle changes in the bone marrow microenvironment and two growth factors, Kitl and Igf1, correlated with age-associated molecular programs in the stem cells.
Researchers explore Extracellular signal-regulated kinase 5 (Erk5) and its unique structures regulating autophosphorylation and transcription. Erk5 is involved in angiogenesis, neurogenesis, energy metabolism, tumor growth, and metastasis, making it a potential target for cancer treatment.
Researchers discovered MIA-602's effectiveness against Doxorubicin-resistant acute myeloid leukemia (AML), demonstrating reduced cell viability and tumor volume. The study suggests MIA-602 as a potential alternative treatment approach for AML, potentially circumventing chemotherapy side effects.
A study found that structural racism is largely to blame for disparities in tuberculosis (TB) incidence among the U.S.-born population. Researchers analyzed national TB registry data and found that TB incidence ratios were higher for certain racial and ethnic groups, with greater relative disparities among females.
Scientists at Cincinnati Children's Hospital Medical Center have created the most detailed atlas of human blood stem cells, identifying over 80 distinct subsets. The study provides new insights into the development of leukemia and potential biomarkers for clinical monitoring.
A study published in Nature found that the response to hematopoietic insults differs across the skeleton, with certain bones specialized to respond to specific stresses. The research uses confocal imaging microscopy to count different cell types and provides new insights into blood cell production, potentially leading to improved treat...
Researchers have discovered a way to enhance the functionality of CD34-negative hematopoietic stem cells, which could lead to better treatments for blood-related diseases. The treated cells showed improved homing abilities and increased gene activity, suggesting they could be more effective as a treatment option.
Researchers created complex 3D structures that mimic bone microstructure using laser 3D printing and an alternate soaking process. The method supports the creation of bone grafts or artificial bone marrow, offering a potential solution to treating leukemia, lymphoma, and immune diseases.
The study evaluated the effectiveness of ruxolitinib in treating relapsed/refractory multiple myeloma. Researchers found that ruxolitinib inhibited JAK signaling, leading to enhanced anti-tumor effects and improved patient outcomes.
Researchers found decreased BMAd density and altered distribution profile in MGUS patients who developed MM, indicating early changes in bone marrow adipose tissue. These findings suggest the potential for timely interventions and personalized treatment strategies.
Researchers found that bone marrow mononuclear cell infusion in children within 48 hours of severe traumatic brain injury reduced intensive care needs and preserved white matter. The treatment also enhanced connectivity in the corpus callosum, a midline structure in the brain.
Researchers discuss reductive carboxylation of glutamine as a potential target in acute myeloid leukemia (AML), an aggressive cancer with poor patient outcomes. The approach aims to weaken tumor cell survival mechanisms, potentially leading to novel therapies and improved patient outcomes.
A phase III trial has found that personalised treatment for chronic lymphocytic leukaemia (CLL) can improve survival and remission rates. The trial showed that individualising therapy based on regular blood tests significantly improved progression-free and overall survival in patients with previously untreated CLL.
Researchers discovered that RvD2, a specialized proresolving lipid mediator, can alleviate established liver scarring or fibrosis. Treatment with RvD2 improved liver histopathology and increased bone marrow and blood monocytes.
A research team identified two different RAD50 variants in a patient with progressive bone marrow failure and immunodeficiency, leading to loss of function of the MRN complex. The findings suggest that RAD50 deficiency/Nijmegen breakage syndrome-like disorder is characterized by growth retardation and microcephaly.
A team at Weill Cornell Medicine mapped the location and spatial features of blood-forming cells in human bone marrow, confirming hypotheses and providing a powerful new means to study diseases. The method, which uses artificial intelligence, identified and determined the positions of about 1.5 million cells in archival samples.
Researchers used dynamic total-body PET scans to visualize immune T cell distribution in recovering patients. The study found increased concentrations of CD8+ T cells in the bone marrow of recovering COVID patients compared to healthy controls.
Researchers discovered Leishmania parasites in blood-related stem cells of chronically infected mice, challenging the textbook understanding of the disease. The finding may lead to new treatment options and improve our understanding of why some people develop visceral leishmaniasis despite having immune disorders.
A study of 14 astronauts found that space travel depletes red blood cells and bone, but the body can eventually replenish them with the help of fat stored in the bone marrow. The researchers also discovered that younger astronauts may have an increased ability to harness energy from bone marrow fat.
Scientists discover unique immune cells in skull's bone marrow, facilitating movement of immune cells between brain and skull, offering new possibilities for diagnosing and treating neurological diseases. Non-invasive skull imaging may enable early detection and monitoring of conditions like Alzheimer's and stroke.
A breakthrough treatment targeting bone marrow cancer cells destroyed 90% of multiple myeloma cells in laboratory tests and 60% in human tissue samples. Researchers developed lipid-based nanoparticles containing RNA molecules that silence the CKAP5 gene, inhibiting cancer cell division.
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.
Patients with GATA2 deficiency have impaired ability to produce immune cells, leading to increased risk of recurrent infections and blood cancers. The study's findings suggest that a zebrafish model may help develop new treatments to slow or reverse the disease.
A study published in Radiology found that weight-loss surgery, specifically sleeve gastrectomy, has negative effects on bone health in adolescents and young adults. The procedure led to an increase in bone marrow fat and a decrease in bone density, suggesting potential long-term consequences for bone health and fracture risk.
A team from the University of Tsukuba has discovered that the enzyme ELOVL6 plays a significant role in the development of acute myeloid leukemia, a type of blood cancer. The study found that high levels of ELOVL6 are linked to shorter survival rates for leukemia patients.
Increased expression of Musashi 1 on breast cancer cells has significant implications for understanding dormancy and survival in bone marrow. Msi 1 knockdown led to a reduction in cancer stem cells with undetectable PD-L1, suggesting a potential therapeutic target.