Articles tagged with Cell Pathology
A proteomic study of 2,002 tumors identified 11 distinct molecular subtypes across 14 tissue-based cancer types, including breast, lung, and brain cancers. These subtypes provide new insights into the deregulated pathways and processes in tumors that make them cancerous.
A Rutgers study analyzing brain stem cells of autism patients found irregularities in early brain development, supporting the concept that ASD arises from poor control of brain cell proliferation. The study discovered that some patients had NPCs producing too many brain cells while others had underproduced cells.
Researchers have developed a single-cell PV design integrated with nonreciprocal optical components to provide 100-percent reuse of emitted radiation, breaking the Shockley–Queisser limit. This breakthrough enables a quasimonochromatic radiation converter to reach the theoretically maximum Carnot efficiency.
Researchers have developed a new tool to visualize leukocytes in the brain vasculature during in vivo two-photon laser scanning microscopy. The tool uses a fluorescent antibody targeting CD45, a ubiquitously expressed protein on white blood cells, allowing for tracking of circulating leukocytes over time and space.
A study found that patients with IgD multiple myeloma have a worse prognosis than other types, with higher mortality rates and more kidney damage. The rare blood cancer produces excessive light chains that can damage the kidneys if left untreated.
A UC Davis study found a critical agent keeping KSHV dormant and undetected by the immune system. The virus is linked to various cancers and AIDS-related diseases. The researchers identified CHD4 as a key regulator of the latency-lytic switch, allowing the virus to stay silent.
A molecular switch, p57, enables stomach stem cells to change allegiance from normal digestion to injury response, potentially leading to new treatments for gastric pathologies. The study's findings suggest that p57 is a key regulator of reserve stem cell state in gastric chief cells.
Researchers discovered a novel mutation in the alpha-synuclein gene that causes severe Lewy body pathology, revealing distinct mechanisms of neurodegeneration. The E83Q mutation influences alpha-synuclein's structure and aggregation properties, leading to increased pathology formation and toxicity.
A preclinical study suggests that astrocyte abnormalities may contribute to repetitive behaviors and memory deficits in autism spectrum disorders. Researchers grew human astrocytes from patients with ASD and transplanted them into healthy mice, which developed repetitive behaviors but not social deficits.
A third dose of COVID-19 vaccine significantly increases immune responses in patients with multiple myeloma, but a subset remains vulnerable. The study found that 88% of patients developed antibodies after the third dose, leading to improved neutralization of the wild-type virus.
Researchers at Shinshu University have elucidated a new molecular mechanism controlling the survival of cerebral nerve cells. Neurexin regulates cerebellar granule cell survival independently of synapses, playing a crucial role in neurodevelopmental disorders such as autism and schizophrenia.
The study reveals a narrowing gap between cancer profiles in China and the USA, with converging trends in lung, breast, and colorectal cancers. China's cancer burden is expected to rise, while the US has seen reduced rates since the 1990s due to effective prevention strategies.
Researchers at Penn Medicine have developed a new approach to alter immune cells for CAR T cell therapy in just 24 hours, cutting manufacturing time from nine to 14 days. This could make the therapy more cost-effective and accessible to more patients.
Researchers are combining optogenetics and fMRI to study the links between brain activity and behavior. This hybrid approach allows for targeted manipulation and monitoring of brain function in awake and behaving rodents, providing valuable insights into neural mechanisms.
Researchers uncover the pleiotropic functions of hnRNPK in regulating skeletal muscle cell differentiation, including inhibition of myoblast differentiation and suppression of genes involved in endoplasmic reticulum stress. The study suggests that targeting hnRNPK could be a potential therapeutic strategy for treating human disorders.
A recent review highlights the effects of different intestinal bacteria on colorectal cancer, exploring new therapies for disease prevention and treatment. Beneficial probiotics, such as Akkermansia muciniphila and Lactobacillus rhamnosus GG, exhibit anticancer properties and reduce CRC cell proliferation.
A new study suggests that incomplete lung cell repair may contribute to the development of chronic fibrotic lung disease in COVID-19 and non-COVID patients. The research proposes novel therapies to promote healthy regeneration and prevent scarring.
Researchers discovered two patients with CAR T cell therapy achieved the longest-known remission to date, providing new details about treatment effects and outcomes. The study shows that the infused CAR T cells remained detectable for at least a decade, with sustained remission in both patients.
A research team has developed a new cancer treatment that targets lymph nodes using a prodrug that selectively reacts with glutathione to release nitric oxide. In a metastasis mouse model, the mice treated with the drug showed significantly reduced weight of metastatic cancer cells and improved survival rates.
Four MUSC Hollings Cancer Center researchers received American Cancer Society Institutional Research Grants worth $35,000 each. The grants support promising projects that aim to push cancer care forward. Researchers are working on various innovative projects, including a digital literacy training program for community health workers an...
Researchers at Japan Advanced Institute of Science and Technology develop a novel strategy to quickly separate intact lysosomes with high purity using magnetic-plasmonic hybrid nanoparticles. The technique allows for rapid extraction of lysosomes from cells, reducing the time required compared to existing methods.
A new study reveals distinct DNA methylation profiles of human microglia cells across different age groups, disease states, and brain regions. The researchers found that interindividual differences in methylation variability had a larger impact than regional or diagnostic differences.
Researchers have found consistent patterns in GABAergic neuron development between humans and mice, shedding light on the causes of neurodevelopmental disorders like autism and schizophrenia. The study uses single-cell RNA sequencing to create detailed maps of gene expression during human brain development.
A study examining autopsy tissue samples from COVID-19 patients found frequent and extensive blood clots within heart vessels, but no typical endothelial cell changes. Instead, hypercoagulability of the blood caused by activated neutrophils was detected as a likely culprit.
The German Research Foundation has approved a new Collaborative Research Center (CRC) focused on developing sustainable iron alternatives to replace toxic or rare elements. The CRC will investigate iron's potential as a building block for the future, aiming to enhance its properties and make it more affordable and resource-efficient.
Researchers found that people with brain buildup but no dementia had normal tau protein, while those who developed plaques or tangles also had a different-handed form of tau. This suggests that a slowdown in autophagy, the process of clearing spent proteins, may be underlying cause of Alzheimer's disease.
Researchers at Harvard's Wyss Institute have developed a microfluidic Organ Chip device that accurately models cystic fibrosis lung airway pathology. The model replicates key pathological hallmarks, including mucus layer changes and inflammatory responses, providing a comprehensive preclinical human model for investigating new therapies.
A study published in Brain Pathology found elevated levels of tau protein in the brains of people with ALS who carry a mutation in the C9orf72 gene. The researchers also identified new genetic mutations in the tau gene and discovered that the ratio of different forms of tau protein may be an indicator of disease progression.
A new study on Bardet-Biedl syndrome reveals that defective primary cilia can broadcast signals that worsen symptoms, including kidney problems and intellectual disabilities. Cilia play a crucial role in regulating intercellular communication, and their malfunctioning is responsible for various inherited disorders.
A new study investigates the effects of cord blood cell transplantation and curcumin administration on Tay-Sachs disease. The results show an increase in enzyme production and a decrease in inflammation after transplantation, as well as improved symptoms and reduced GM2 ganglioside levels when combined with curcumin.
Researchers at IRB Barcelona have identified γTuRC as a centriole stabilizer, revealing its role in maintaining centriole stability and preventing microcephaly. The study's findings suggest that defects in γTuRC may contribute to various human diseases, including adolescent scoliosis and male infertility.
DZNE researchers found that viral molecules facilitate the intercellular spreading of protein aggregates, which are hallmarks of brain diseases like Alzheimer's. The presence of viral ligands increases protein aggregate spreading between cells, potentially contributing to neurodegeneration.
Researchers have developed chimeric exosomes that co-activate the immune system to combat tumors. The therapy targets solid tumors, where the immune cells are often compromised, and improves treatment outcomes for patients.
Researchers created tiny human midbrain-like organoids that mimic the major pathological features of Parkinson's disease. These organoids enable scientists to study how the human brain develops and communicates, providing insights into the progression of the disease and potential new treatments.
Researchers have created brain organoids from people with 16p11.2 genomic variations, which exhibit differences in brain size seen in individuals with autism spectrum disorder. The study revealed new information about molecular mechanisms that malfunction when this region is disrupted, providing opportunities for therapeutic intervention.
A new study has found that the absence of Aire protein in mice leads to fertility problems similar to those affecting men with autoimmune polyendocrine syndrome type I (APS-1). Researchers discovered that Aire-dependent central tolerance plays a critical role in maintaining male fertility.
Researchers developed a new system to track tumor cell evolution and identify resistant cells, which can be used to test treatment effectiveness. The system, ClonMapper, allows for high-resolution study of clonal dynamics during tumor evolution and treatment.
Researchers have determined the structure of human leukotriene B4 receptor 1 (hBLT1), a protein involved in inflammation and disease. The analysis reveals how the receptor recognizes its binding partners and interacts with them, opening up avenues for designing better drugs.
Researchers discovered that skin fibroblasts from FTD patients exhibit pathological RNA foci, p62 protein-containing vesicles, and defective energy metabolism, which could lead to the development of novel biomarkers and treatments. These findings may also be useful in testing drug effects on FTD patients.
Researchers have identified a brain enzyme that activates dormant neural stem cells, enabling them to proliferate and generate new neurons. The study found that the enzyme Pr-set7 plays a crucial role in maintaining genome stability and regulating cell cycle, leading to reactivation of neural stem cells.
Researchers have identified brain cells most susceptible to Alzheimer's disease, which could lead to targeted treatments to boost the brain's resilience. The study found that RORB-expressing neurons are among the first to die in the disease, accumulating tau tangles earlier than neighboring cells.
A study published in Scientific Reports reveals a significant rise in Creutzfeldt-Jakob disease cases and mortality rates in Japan between 2005 and 2014. The incidence rate increased by an average of 6.4% per year, with the most prominent increase seen among individuals over 70 years old.
Researchers at Lund University have developed a 3D model of human hippocampal tissue from induced pluripotent stem cells, allowing for the study of early cellular dysfunction in Alzheimer's disease. The study found that patient-specific pathology differs between individuals with extreme symptomatology.
Researchers have mapped out cell types behind various brain disorders, including Parkinson's disease, indicating that the disease may start in the gut. Oligodendrocytes were found to be affected early on, suggesting they play a key role in the early stages of the disease.
A recent study by Professor Michael Schrader and his team has explored the impact of peroxisome alterations on disease. The researchers found that defects in peroxisomal dynamics and division can lead to metabolic disorders, including developmental and neurological abnormalities.
Researchers at OIST Graduate University developed a new method to diagnose frailty using metabolomics and identified key biomarkers in the blood. The study found that 22 blood metabolites correlate with frailty, cognitive impairment, and hypomobility, offering potential for early diagnosis and treatment.
Researchers found that cells from children with NGLY1 deficiency lack sufficient water channel proteins called aquaporins, leading to inability to produce tears and other wide-ranging symptoms. The discovery opens new avenues for finding therapies to treat the disorder.
A new AI algorithm, ConvPath, uses artificial intelligence to classify cell types and quantify spatial distributions in tumor tissue. This allows pathologists to obtain accurate cancer cell analysis in a faster way.
A new study using single-cell analysis of brain cells from autism patients found that specific genetic changes in neural cells and brain circuits correlate with the clinical severity of autism. The research identified autism-specific genes that could represent high-priority targets for new therapeutic treatments.
A recent study by George Washington University researchers found a connection between mitochondrial dysfunction and cortical under-connectivity and cognitive impairment in DiGeorge/22q11 Deletion Syndrome. Restoration of mitochondrial function through antioxidant therapy restored connectivity and behavioral deficits.
The study analyzed 26 widely-used protein disorder prediction methods and found that they vary noticeably in performance. This thorough comparison provides valuable insights for protein scientists to make informed choices about which programs to use.
Researchers found that a vegan-based fasting diet reduced inflammatory bowel disease (IBD) pathology in mice by changing their gut microbiota. The diet, known as the fasting-mimicking diet (FMD), increased stem cell numbers and stimulated protective gut microbiota, leading to reduced intestinal inflammation.
Researchers reveal that dendritic cell partnership with CD4 T cells is crucial for disease development in both diseases, offering new insights into treatment options. The study also highlights the importance of targeting multiple pathways to treat patients with these immunological disorders.
A study led by Adam Wende found an underlying mechanism that reprograms the hearts of patients with ischemic cardiomyopathy, altering cellular remodeling and metabolism. The researchers identified epigenetic changes that encode a 'metabolic plasticity' in failing hearts, which may repair the ischemic and failing heart.
A study by the University of Pennsylvania School of Medicine found that misfolded α-syn proteins embedded in brain cells cause different Parkinson's-related disorders, depending on the type of cell. The researchers discovered a distinct strain of α-syn protein, which is 1,000-fold more potent in causing disease in animal models.
Researchers discovered that the stress gene NR4A1 adjusts energy output and synapse number of prefrontal cortex neurons in response to stress. Chronic stress may interfere with normal brain circuit function through this gene's impact on cellular connectivity, but altering its expression protects PFC cells from synaptic loss.
Optic nerve hypoplasia is a leading cause of childhood blindness in developed nations, and researchers have discovered the biological mechanism behind it. The condition affects brain growth during development, particularly with the CASK gene, which helps provide architectural support for neuronal communication.
Researchers develop a new spectrometer to analyze single living cells in situ, providing mechanical and chemical maps of the system. The study reveals that oncogene expression causes significant softening in cells, making them more invasive.
Researchers discovered a single amino acid switch in the CX3CR1 receptor as a potential marker for predicting schizophrenia and autism. The variant affects microglia function and could lead to predictive diagnostics, offering new hope for asymptomatic patient screening.
Researchers at Duke-NUS Medical School have identified a critical role of spindle matrix proteins in regulating neural stem cell reactivation and proliferation. This discovery could lead to potential stem cell-based therapies for neurodevelopmental disorders, such as microcephaly and Alzheimer's disease.