Articles tagged with Adaptive Immune System
A recent study found that human lung tissue contains a vast reservoir of tissue-resident memory T cells (T RM cells) capable of targeting a range of viruses, bacteria, and fungi. These cells reside only in the lungs and can live for years, providing a vital line of defense against severe respiratory infections.
Researchers found that wood frogs' adaptation to salty water increases their vulnerability to ranavirus, a common and fatal disease. The study highlights the hidden costs of survival in wildlife under environmental stress.
A study by the University of Florida reveals that young frogs invest heavily in early growth and delay stronger immune responses until infection levels become dangerous. This strategy helps them survive and reproduce in environments with fluctuating food availability and infection risk.
Researchers found a protein called RAB5c that helps white blood cells kill Aspergillus fumigatus, a common airborne fungus. Without this protein, immune cells are disarmed despite attacking at full force. The discovery could lead to new treatments for patients with weakened immune systems.
Scientists at La Jolla Institute for Immunology have characterized human antibodies capable of neutralizing measles virus. The new panel of human antibodies may form the basis for future medical therapies against measles infection, with a study showing a 500-fold lower viral load in a rodent model.
Researchers at Boston Children's Hospital have identified a mechanism for immune cells to recycle defective or autoreactive antibodies by editing their genes. The new process uses an enzyme called RAG to swap out light chains with nearby new ones, often making them non-defective and functional.
Researchers have found that COVID vaccines can train immune cells to remember the SARS-CoV-2 virus and protect against severe infection for years afterward. However, the continued spread of disease has scientists taking a closer look at how the immune system builds up immune memory over time.
Researchers have uncovered a new understanding of how cardiac events are interconnected with the brain and nervous/immune systems. They found that sensory neurons in the vagus nerve detect injury and transfer signals to dedicated brain structures, leading to activation of the immune system.
Researchers found that people experiencing everyday discrimination have elevated levels of "exhausted" white blood cells, indicating chronic stress may hamper the immune system. This study suggests social experiences like discrimination shape immune health at the cellular level and contribute to biological aging.
Researchers have discovered that actin forms wavefronts around the synapse centre, actively transporting TCR microclusters towards the cell edge. This process rescues TCRs from endocytosis and enables T cells to bind to multiple APCs in succession.
Salk Institute scientists found distinct disease courses and tolerance mechanisms in younger and older mice with sepsis, indicating a need for age-tailored therapies. The study suggests that future treatments may focus on controlling infection-generated damage rather than just targeting the pathogen.
A new study from Texas A&M University reveals that circadian disruptions change the structure of mammary glands, weaken immune defenses, and fuel aggressive breast cancer. Disabling an immune checkpoint molecule called LILRB4 helps restore the immune system's ability to fight back.
A recent review in the Chinese Medical Journal uncovers how circulating tumor cells evade immune elimination, highlighting their interactions with immune cells and blood components. The study suggests new therapeutic targets, including anti-platelet therapy and immune checkpoint inhibitors, to combat cancer metastasis.
Researchers have developed a research pipeline to create 'universal vaccines' that can address broad viral families and mutated variants. The vaccine design aims to neutralize emerging SARS-CoV-2 variants and other viruses with pandemic potential.
Conventional dendritic cells have been found to originate from both myeloid and lymphoid progenitors, revealing their unique functions and developmental pathways. These lymphoid-derived cDCs exhibit potent functions in immune suppression and allergy induction, and follow diverse developmental pathways.
Researchers found that T-bet expression is crucial for preserving the protective memory response in lung and lymph node memory B cells. Continuous T-bet expression in these cells enables their rapid differentiation into antibody-producing plasma cells upon a second flu virus infection.
Researchers create map of T cell responses to Chikungunya virus, shedding light on chronic disease triggers. They found that people with chronic disease have T cells targeting the same viral epitopes as those who cleared the virus.
Scientists at the Institute for Systems Biology have discovered how T cells respond to infections like COVID-19, revealing a predictable pattern based on genetic interactions. This breakthrough could lead to improved treatments and vaccine strategies for diseases such as cancer and autoimmune disorders.
A Texas Tech University laboratory played a key role in identifying a genetic adaptation in bats that could help fight viral diseases. The study found that a gene common in some bat species can reduce the production of SARS-CoV-2 virus by up to 90%, presenting a potential new pathway for combating viral infections.
Scientists at UCSF have developed engineered T cells that act as immune referees to soothe overreacting immune responses and mope up inflammatory molecules. These cells could improve treatment for organ transplants, type 1 diabetes and other autoimmune conditions by reducing the need for harsh immunosuppressant drugs.
Researchers have developed an artificial adhesion system that closely mimics natural biological interactions, enabling precise control over its strength under varying forces. The innovative 'fish-hook' bond has vast potential in materials science and medicine, inspiring responsive materials and force-sensitive drug delivery systems.
The Deutsche Forschungsgemeinschaft is establishing seven new Collaborative Research Centres (CRC) with a total funding of €92 million. The CRCs focus on innovative research projects in sustainable construction, electronic systems, and ecosystem services. Seven new Transregios are also being funded to tackle long-term challenges.
Researchers found higher levels of CD47 expression linked to more aggressive tumors, immune cells, and oncogenic signaling. Targeting CD47 could lead to improved outcomes with immunotherapy drugs, especially in cases where existing treatments are ineffective.
A new study found that the heart sends signals to the brain to increase sleep after a heart attack, promoting healing and reducing inflammation. This communication between the heart and brain is mediated through the immune system and can lead to improved recovery and reduced risk of further cardiovascular events.
A USC Stem Cell mouse study identifies a small subset of blood stem cells as the primary driver of immune aging. The researchers found that this subset overproduces innate immune cells, leading to an age-associated imbalance and increased disease risk. By targeting this subset, the study suggests a potential therapy to delay immune agi...
Research reveals T cells regulate trained immunity, a process previously thought to be independent of the innate immune system. This discovery offers potential for new treatments in autoimmune disorders, cancer, and cardiovascular diseases.
Pamela J. Bjorkman, K. Christopher Garcia, and Ian A. Wilson receive inaugural prize for their groundbreaking research in structural immunology, which has paved the way for novel disease treatments and revealed new insights into the immune system.
ISB researchers identify NKG2A-biased immune responses as protective against decreased inflammation and increased survival rates in various disease contexts. The study suggests potential therapeutic targets for modifying immune responses across diseases.
A team of researchers from UMass Amherst and Seattle Children's Research Institute found that prior exposure to certain bacteria changes the lung's innate immune response, making it more vulnerable to tuberculosis. The study suggests that remodeling the innate immune system could be a more effective strategy in fighting TB.
Researchers at Karolinska Institutet have developed a nasal spray with IgA antibodies that can protect mice from SARS-CoV-2 infection. The treatment significantly diminished virus load in infected mice and showed stronger binding to the spike protein compared to original IgG antibodies.
Researchers developed a ceria nanoparticle-immobilized mesenchymal stem cell nanovesicle hybrid system to treat rheumatoid arthritis. This approach provides both immediate pain relief through ROS scavenging and long-term immune tolerance by delivering immunomodulatory cytokines.
Researchers at Institute for Systems Biology have made a breakthrough discovery about T cells, finding that the genetically encoded T-cell receptor sequence determines a T cell's function. This fundamental discovery has huge potential for developing custom immune responses to specific antigens.
Researchers at Karolinska Institutet have found that weightlessness affects T cells in astronauts' immune systems, making them less effective at fighting infections. The study's results could lead to new treatments for reversing these changes.
Researchers found that an iron-rich diet can prevent deadly symptoms in mice during active infection, while a functional adaptive immune system is required for immunity against future infections. The study paves the way for the development of new vaccines that could promote immunity for those with diarrheal diseases.
A new study from the University of Wisconsin-Madison tracks immune cell movement in zebrafish, documenting a strikingly organized network of T cells. The findings shed light on how adaptive immune systems function in non-mammals and present exciting questions to pursue.
Researchers from Nara Institute of Science and Technology found that alveolar macrophages act as antigen-presenting cells to prime CD8+ T cell expansion in the lungs. This process involves the production of interleukin 18, leading to the development of resident memory-type cell populations.
Researchers create CDyB, a fluorescent probe that targets SLC35C2 transporter in B cells, allowing for live-cell distinction from T cells. The study enriches the molecular probe toolbox and opens possibilities for multi-dimensional cell analysis.
NC State researchers discovered a new way to make the difficult-to-characterize gut bacterium Bifidobacterium more responsive to antibiotics. They also found tiny changes in different strains that reflect large differences in their characteristics, highlighting the need for individualized CRISPR-based genome engineering approaches.
Researchers from Mount Sinai found a significant connection between the immune system and amyotrophic lateral sclerosis (ALS), a devastating neurodegenerative disease. The study analyzed mice and human samples using state-of-the-art technologies, revealing peculiar immune signatures that distinguish different forms of ALS.
A new study led by Cedars-Sinai research suggests that androgen hormones interfere with the body's ability to fight bladder cancer, explaining why males experience higher cancer rates. Androgen deprivation therapy may improve treatment outcomes for male patients.
A study published by the University of Alabama at Birmingham found that T cell-derived interleukin-22 plays a crucial role in antibacterial defense of colonic crypts. The researchers discovered that two types of immune cells, innate and adaptive, have distinct roles in defending against pathogenic bacteria.
A University of Gothenburg study found that IgA antibodies present in the respiratory tract protected healthcare workers from contracting COVID-19. The research, published in the European Journal of Immunology, suggests that these antibodies may play a crucial role in preventing severe illness and hospitalization.
Researchers at Harvard's Wyss Institute create functional lymphoid follicles on a chip, replicating human immune responses and predicting vaccine efficacy. The discovery offers a new tool to model the complex choreography of human immune responses to infection and vaccination.
Researchers found that innate effector cells can acquire a memory to strengthen gut mucosal defenses against repeated infections over time. This discovery demonstrates a new antibacterial immune defense mechanism and could lead to novel therapeutic approaches to treat intestinal diseases.
Researchers tracked antibody response to COVID-19 vaccination and found that antibodies improve in quality for months after vaccination. Even low levels of antibodies provide some protection as long as the virus doesn't change.
A study has identified specific signaling pathways that determine when immune cells develop into long-lived protective T cells. The researchers found a distinct molecular signature of these memory cells, which helps to unravel the complex way in which immunological memory is formed and maintained.
Scientists have discovered families of proteins that can predict liver transplant rejection, allowing for early detection and modification of immunosuppression. The Blood Proteoform Atlas outlines over 56,000 protein molecules associated with immune cell proteins that change with rejection.
Previous antibody responses to harmless coronaviruses contribute to SARS-CoV-2 immunity, reducing infection severity and hospitalization rates. Researchers found that people with strong immune responses to other human coronaviruses have some protection against SARS-CoV-2 infection.
Researchers at The University of Tokyo used artificial intelligence to show that T helpers in the adaptive immune system act like a neural network, optimizing responses to pathogens. The study may lead to improved vaccine development and stronger immune responses.
The evolution of pregnancy in seahorses and pipefishes is linked to modifications of the adaptive immune system. Genomic analysis reveals divergent genomic rearrangements in the MHC II pathway, which may help study immune deficiencies.
The study found that almost complete immune capacity in the gut had developed as early as 14 weeks, with cells from both innate and adaptive immune systems present. This discovery could lead to the development of new maternal vaccines and a better understanding of the risk of autoimmune diseases.
A recent study suggests that specific immune system peptides could influence brain activity and drug cravings, offering a potential partner in the fight against opioid addiction. The research focuses on targeting these peptides to reduce cravings in human patients.
Researchers at UC San Francisco discovered that the adaptive immune system plays a role in guiding the normal development of mammary glands in mice. The immune system puts brakes on cell growth to fine-tune structure, a process that may also apply to other organs such as the prostate gland and skin.
Researchers have discovered that the innate immune system's natural killer cells can learn from experience and fight more effectively when called into battle a second time. This new ability, known as 'memory-like,' was found in natural killer cells that could respond more easily and vigorously to reactivation.
Researchers studying a lancelet, a tiny primitive fish found in Tampa Bay waters, have identified key immune system proteins that share similarities with those found in humans. The study's findings could lead to improved biodefense and biotechnology for cancer treatment and disorders like rheumatoid arthritis.
Researchers at Duke University discovered that mast cells trigger both the innate and adaptive immune responses by releasing TNF, which recruits infection-fighting T-cells and induces antibody production. This finding redefines how the immune system functions and may lead to new therapeutics for disease protection.