Articles tagged with Antibodies
A new study analyzing 5,000 stored blood samples found no increase in food-specific IgE antibodies between the 1980s and 2000s. The researchers suggest that growing awareness and diagnosis of food allergies among children may be contributing to the increasing prevalence of food allergies over the past few decades.
Research finds that infants develop strong antibody responses to RSV F and G proteins after infection, while adult immunity weakens over time. The study suggests that future vaccines should include G proteins to boost anti-G responses.
Researchers found that defects in LC3-associated phagocytosis (LAP) may contribute to systemic lupus erythematosus (SLE), the most common form of lupus. LAP ensures proper digestion and disposal of dead cells, which was found to be impaired in SLE-prone mice.
A new study reveals an unconventional antibody that targets the patient's vascular response to sepsis, converting a harmful protein into a protective one. This approach stabilizes blood vessels, strengthens barrier function, and quells systemic inflammation, prolonging survival in mice with sepsis.
The new study found that higher levels of antibody against neuraminidase protein were better predictors of protection against flu infection and its side effects. Participants with high levels of HA antibodies experienced lower incidence of mild-to-moderate influenza, but not necessarily less severe symptoms.
A study published in JAMA found that pembrolizumab, an antibody against PD-1, was associated with a 33% objective response rate and 23-month median overall survival in patients with advanced melanoma. The treatment also showed improved progression-free survival rates of 35% at 12 months and 52% at 12 months
A recent study by Duke-NUS Medical School scientists has revealed the Zika virus structure and identified potential sites to target with therapeutics. The findings suggest that destabilizing the virus's structure may help reduce disease severity or limit transmission.
A preliminary clinical trial found that an experimental antibody treatment decreased the number of cancer stem cells driving tumor growth in nearly all patients with multiple myeloma. The treatment was tested in 15 newly diagnosed patients and showed promising results, with no serious adverse side effects.
Researchers identified a new hormone, asprosin, generated by fat, which instructs the liver to release glucose into the blood stream. This discovery could lead to a new treatment for type 2 diabetes through immunologic sequestration.
Scientists have found that the RGS1 gene affects the frequency of T follicular helper cells, which are important for B cell production and seem to be crucial for the disease. The study suggests that while inhibiting RGS1 did not prevent autoimmune diabetes, it changes the way cells move within lymph nodes and spleen.
A recent study found that HPV vaccination stimulates robust immune responses in girls and young women with chronic kidney disease and dialysis, but less optimal responses among those with a kidney transplant. This highlights the need for additional research to protect kidney transplant recipients from HPV infections.
Researchers are testing blood samples from patients with myasthenia gravis to determine the presence of two new antibodies, agrin and LRP4. The study aims to characterize their clinical symptoms and develop treatment strategies for double-negative patients.
Researchers developed a microneedle patch that delivers anti-PD-1 antibodies directly to the site of melanoma skin cancer, improving treatment effectiveness. The patch creates a sustained release of antibodies into the tumor microenvironment, achieving better retention and efficacy compared to traditional treatments.
Research shows that aging alters antibody responses to oral bacteria, with significant positive correlations observed across the population. Specifically, antibody levels to Porphyromonas gingivalis and Treponema denticola increased with age, while those to Aggregatibacter actinomycetemcomitans did not.
EPFL scientists have created an implantable capsule that can deliver antibodies to target and clear amyloid beta protein plaques in the brain, potentially treating Alzheimer's disease. The device has been tested on mice with great success, reducing Abeta plaque load and phosphorylation of tau protein.
A new technique developed by Stanford chemists has shown promise to be thousands of times more sensitive than current techniques in lab experiments. The test uses DNA screening technology and could enable early detection of diseases such as cancer and HIV.
A recent NIH study found that antibodies derived from unconventional B cells in HIV-infected individuals with uncontrolled virus levels are less effective at neutralizing HIV. The study suggests that the abnormal distribution of B cell types contributes to the lack of effective immune response.
Researchers developed an antibody against KCNK9, a cellular gateway that suppresses lung tumor cell growth and breast cancer metastasis. The antibody reduced tumor growth by up to 70% and slowed metastases in mice.
Researchers found a promising single-dose dengue vaccine effective in preventing human volunteers from contracting the virus, protecting against infection. The study's findings could be the final piece in developing an effective vaccine against dengue, which infects nearly 400 million people annually.
Scientists have identified a new SARS-like virus, WIV1-CoV, that directly binds to the same human receptor as the SARS strain. The virus has the potential to infect humans without adaptation and replicate efficiently in human cells, raising concerns about a possible outbreak.
Researchers at ETH Zurich have developed a new genetic method that enables the recording of a vast range of antibodies in an individual with high precision. This breakthrough can be used for vaccine development and early disease detection, offering significant advantages over previous antibody detection techniques.
Researchers developed a new method called ADAP to detect antibodies in small blood samples, increasing sensitivity for early disease diagnosis. The approach could also be applied to saliva testing, offering a simpler and more accessible alternative to current methods.
Scientists at Yerkes National Primate Research Center have successfully tested an immunotherapy agent that can push SIV out of its hideouts in infected monkeys. The treatment, which combines PD-1 blockade with antiretroviral therapy, resulted in more rapid viral suppression and active antiviral T cells.
Researchers have isolated a collection of potent antibodies from an Ebola survivor that target the virus's glycoprotein stalk, providing significant post-exposure protection. These antibodies may lead to effective therapies to fight Ebola.
Researchers at University of Maryland School Medicine have developed a new treatment for Middle East Respiratory Syndrome (MERS) that uses genetically modified cows to produce anti-MERS antibodies. The treatment has shown promising results in mouse models, with the potential to be effective in humans.
Researchers have developed a chimera design that allows antibodies to cross cell membranes, potentially reducing the need for invasive biopsies. This breakthrough could lead to improved diagnosis and treatment of diseases such as cancer, Alzheimer's, and viral infections.
Researchers at Johns Hopkins University found a possible marker for recurring HPV-linked oropharyngeal cancers. The study suggests that an increase in E6 antibody levels after treatment may indicate a higher risk of cancer returning.
A study published in Neurology found that people taking natalizumab for multiple sclerosis have a higher risk of developing JC virus-related infections, which can lead to fatal brain disease. Researchers monitored levels of anti-JC virus antibodies in patients treated with natalizumab and found a significant increase in risk.
Researchers have identified antibodies in the blood of survivors that can kill various types of Ebola, providing a potential single treatment against several strains. The study's findings could lead to the development of treatments for Ebola and other related viruses.
Scientists at Virginia Tech Carilion Research Institute have found a way to influence long-term memory formation in the immune system. The researchers discovered that proteins responding to the cells' environment can push effector cells towards memory, leading to the creation of specialized cells to combat specific invading pathogens.
A new University of Birmingham study has found that lower levels of antibodies in saliva are associated with an elevated risk of mortality. The research discovered a negative correlation between IgA secretion rate and all-cause mortality rates, with underlying associations to cancer mortality, particularly non-lung cancers.
A person's first flu infection stimulates key antibody production, which later influences responses to other seasonal strains. Researchers found that early exposure, such as in childhood, can imprint the immune system and shape its response.
A systems biology study of over 400 volunteers found that certain molecular signatures predict strong immune responses to seasonal flu vaccines in both young and elderly individuals. The researchers identified a distinct signature associated with long-lasting antibody responses, which may guide the development of more effective vaccines.
Researchers at the University of Texas at Austin have developed two antibodies to potentially treat or prevent pertussis, a highly contagious respiratory tract infection that affects millions of infants worldwide. The antibodies potently neutralize pertussis toxin, bolstering immune function and rapidly reducing white blood cell counts.
Researchers at Kyoto University have discovered that an antibody called nivolumab may help patients with platinum-resistant ovarian cancer heal themselves by targeting the PD-1 signal. A phase II clinical trial found that most patients treated with nivolumab experienced a median overall survival of 20 months.
Researchers at University of California have successfully created a strain of mosquitoes capable of rapidly introducing malaria-blocking genes into its population, potentially eliminating the disease. The breakthrough uses a gene editing technique that allows for efficient creation of large populations of mosquitoes with this trait.
Researchers at IRCM identified the mechanism of action for a new target in immune-oncology treatments, focusing on natural killer cells and DNAM-1 protein. The discovery could lead to improved therapies using antibodies against TIGIT receptor.
Researchers at the University of Wisconsin-Madison have created an antibody that selectively links to a protein on highly aggressive brain cancer cells, causing them to light up in PET scanners. This breakthrough could lead to improved diagnosis and treatment of glioblastoma multiforme, a deadly form of brain cancer.
Researchers discovered that introducing a specific strain of bacteria into mice with melanoma boosted their immune systems to attack tumor cells. The findings suggest that manipulating gut bacteria can improve immunotherapy outcomes, providing a new approach to treating cancer.
A possible solution to the inflammatory side effects of Alzheimer's immunotherapy has been discovered by researchers from the University of Southampton. They engineered three new antibodies that preserved immunotherapeutic activity while reducing inflammation.
Researchers discovered that anti-PlGF antibody treatments, such as aflibercept, may slow the progression of dry age-related macular degeneration. The study found that PlGF actually worsened retinal damage in mice, but an anti-PlGF treatment provided protection against light-induced degeneration.
A study by Rice University researchers has solved a long-standing mystery about the storage and secretion of blood-clotting factor VIII. The protein is both stored and secreted from a specialized organelle in endothelial cells, which line the walls of blood vessels.
Researchers can improve research and reduce costs by replacing animal-derived antibodies with modern technologies like recombinant antibodies and aptamers. This switch has the potential to save tens of thousands of animals from suffering in laboratories.
Researchers have found that a deadly fish virus, viral hemorrhagic septicemia virus (VHSv), is still circulating in Lake Winnebago, Wisconsin. Despite efforts to slow its spread, the virus can survive in infected fish, potentially leading to future outbreaks.
Researchers have discovered a candidate target for a dengue virus transmission-blocking vaccine, which interferes with the virus's infection of mosquitoes. The target protein, CRVP379, is required during DENV infection in mosquito cells and whole mosquitoes, and its expression levels correlate with the level of DENV infection.
Researchers at The Scripps Research Institute have discovered a way to convert leukemia cells into cancer-killing immune cells using a rare human antibody. The induced NK cells can detect and eliminate cancer cells, offering a potential new therapy for leukemia and possibly other cancers.
A team of researchers from the University of Pennsylvania School of Medicine has elucidated the structure of a protein complex at its root, which may hold therapeutic potential for treating heparin-induced thrombocytopenia (HIT). The study found that an antibody called RTO disrupts this complex, preventing platelet activation and clot ...
A team of researchers found that sialic acid reduces antibody-induced cell killing, offering potential treatment for autoimmune diseases. Antibodies with this sugar structure are detectable more frequently in healthy individuals than those with autoimmune diseases.
A new approach using DNA nanomachines can detect specific antibodies in five minutes, enabling rapid and affordable point-of-care diagnostics for infectious diseases like HIV. This technology promises to reduce healthcare costs and treatment initiation delays.
A team of Caltech biologists has created a non-surgical approach to deliver long-term contraception using a single shot, rendering animals infertile for up to two months. The technique targets the 'master regulator of reproduction,' gonadotropin-releasing hormone (GnRH), neutralizing its effects and preventing conception.
Researchers develop rapid and efficient method to target protein modification, enabling precise attachment of synthetic molecules. This technique has potential applications in antibody-drug conjugates for tumor therapy, outperforming existing methods.
Genetic mutations in Ebola virus appear to block antibody-based treatments from warding off infection. The mutations, or 'escape variants,' have implications for the continued development of therapeutics to treat Ebola virus disease, which has claimed over 11,000 lives in West Africa.
A team of researchers from the USA, England, Australia, and Germany will collaborate on a three-year project to better understand the information processing in germinal centres of lymph nodes. The goal is to gain insights into antibody formation and develop targeted therapeutics for infections.
Patients with autoimmune hepatitis who present with cirrhosis at first diagnosis and those with SLA/LP antibodies have a higher risk of relapse, liver transplant, and reduced life expectancy. The presence of SLA/LP antibodies is linked to poor overall and liver transplant-free survival.
Study finds that certain IgG3 and IgG4 donor-specific HLA antibodies correlate with distinct patterns of antibody-mediated injury to transplanted organs. Patients with mostly IgG3 antibodies have a higher likelihood of organ rejection soon after transplantation, while those with mostly IgG4 antibodies experience delayed rejection.
Researchers developed a paper-based device that changes color to detect Ebola, yellow fever, or dengue viruses. The test takes minutes and doesn't require electricity, providing a potential solution for remote, low-resource areas.
A team of scientists at Scripps Research Institute has devised an improved method to engineer therapeutic proteins into antibodies, which can persist long enough to be useful. The technique mimics evolution and harnesses the power of large numbers to select rare junction segments that allow inserted proteins to fold and function normally.
Scientists have successfully tested a new tumor diagnosis method that uses molecular spies to detect diseased cells and visualize tumors. The method, which combines antibody-based detection with pre-targeting technology, has the potential to improve cancer treatment by using internal radiation.
A licensed technology measures anti-HLA antibody secretion from memory B cells, improving kidney transplant efficiency and preventing rejection. Researchers found high-risk patients using this technique, which complements existing antibody measurement methods.
The HVTN 505 study found that the candidate vaccine induced polyreactive antibodies recognizing both HIV and intestinal microbes. These non-specific antibodies may decrease vaccine effectiveness against HIV.