Articles tagged with Bacterial Signaling
Researchers discovered how gut bacteria produce an enzyme that modifies signaling in cells lining the gut and breaks down phytate, a crucial nutrient. The enzyme is packaged in outer membrane vesicles (OMVs) which allow for cross-kingdom communication with human cells, influencing calcium signaling and potentially improving health.
A team of researchers at Columbia University has developed a CMOS chip that can electrochemically image signaling molecules from bacterial colonies, providing new insights into how biofilms form. The chip enables direct detection of small molecules, such as phenazines, which control gene expression and contribute to colony morphogenesis.
Rice University scientists create method to quantify how mutations affect protein pairs' ability to transmit signals. The new metric helps understand crosstalk and specificity in two-component systems, essential for bioengineering applications.
Researchers at Duke University tested a theory on bacterial dispersal patterns using E. coli, finding that spreading out to multiple habitats simultaneously can be beneficial but also increases the risk of population collapse due to the Allee effect. This study has implications for managing invasive species and understanding the impact...
Researchers at Hebrew University have discovered how persistent bacteria survive antibiotic treatment by disrupting the chemical messaging process. This understanding could lead to improved therapies in the future.
Researchers have discovered that polymers can disrupt the way bacteria communicate with each other, leading to unexpected clustering behaviors. This finding has significant implications for the design of materials as antimicrobials, bioprocessing, and synthetic biology.
Researchers have discovered that specific bacteria, such as Lactobacillus, stimulate the growth of host epithelial cells through the production of reactive oxygen species. This finding has implications for treating inflammatory bowel disease and other disorders.
Researchers found that engineered bacteria use time as a cue to form predictable ring patterns, contradicting established theories. This discovery has implications for understanding pattern formation in biology and could lead to the creation of biological scaffolds for new materials with energy applications.
Researchers at the University of Missouri have identified a beneficial relationship between crops and bacteria that could lead to reduced nitrogen fertilizer use. By understanding how legume crops interact with rhizobia bacteria, scientists hope to develop new methods for improving plant nutrition and reducing waste.
Bacteria use TamA protein to channel protein domains across the outer membrane, overcoming additional barrier for nutrient and toxin transport. This process is crucial for infections by pathogens like Yersinia, Salmonella, and Cholera.
Researchers at the University of Nottingham have found a novel way to block the social communication of bacteria P. aeruginosa, which enables it to cause infection.
Researchers found that certain stimuli, such as flu infection, fever and stress hormone release, trigger bacteria to leave biofilms in the nose and enter sterile organs, revealing increased virulence. Understanding this mechanism could lead to ways to block the transition to disease.
Researchers visualized live bacterial cell-to-cell communication pathways using a new method. They successfully showed that modified signaling molecules selectively bind to QS receptors in certain bacterial species, enabling the detection of receptor localization inside cells.
Researchers at EPFL have developed a matchbox-sized device that can test for bacterial presence in just a couple of minutes. This method uses nano-levers and lasers to detect metabolic activity, allowing for fast and accurate diagnosis of effective antibiotic treatment.
Berkeley Lab researchers found that most bacterial genes are regulated by signals unrelated to their function, leading to maladaptive regulation in laboratory settings. Only a small percentage of genes showed adaptive regulation, suggesting that natural responses may not fit the classical all-benefit-and-no-cost model.
Scientists at Imperial College London have identified four new receptors for the signalling molecule c-di-AMP, which is essential for bacterial growth and division. The discovery provides vital clues for developing new antibiotics targeting these pathways.
A study found that symbiotic bacteria in squids use light and chemical signals to control circadian-like rhythms in the animals. The bacteria entrain gene expression in the squid's head, cycling proteins to synchronize daily rhythms. This discovery has implications for understanding clock genes in other animals, including humans.
Researchers at the University of Gothenburg have made significant findings on the link between gut bacteria and cholesterol metabolism. The study reveals that gut bacteria can reduce bile acid synthesis in the liver by signaling through a specific protein, which could lead to new treatments for cardiovascular disease.
A Rice University-led study has uncovered an elaborate mechanism allowing bacteria to begin preparing for survival even as it delays the decision to form a spore. The research found that nested 'feedforward' loops enable cells to process information while executing the program, making an accurate decision without delay.
A new study suggests that bacteria cue choanoflagellates, the closest living relatives of animals, to form colonies. The discovery implies that bacteria may have helped kick off multicellular life, a development that eventually led to all animals, including humans.
eLife has published its first four research articles, describing groundbreaking discoveries in life science and biomedicine. These include a hormone that increases mouse lifespan and a critical signaling molecule involved in the evolution of multicellularity.
Scientists have identified a new signaling system in bacteria that enables them to produce an appendage, swim away, and inhibit biofilm formation. This discovery could lead to understanding how to break up harmful bacterial biofilms on teeth or medical devices.
Researchers at Case Western Reserve University have discovered a parallel between bacterial and human cell behavior, shedding light on potential treatments for diseases. The study found that nitric oxide plays a fundamental regulatory role in controlling bacterial function via S-nitrosylation.
James Hoch's research aims to understand bacterial signaling interactions and their role in disease. His work has identified strategies for disrupting virulence factors and essential bacterial functions, suggesting potential approaches to treating antibiotic-resistant infections.
Scientists have developed a simple test to identify MRSA in wounds that can detect the superbug quickly, enabling more effective treatment. The test uses tiny electrical sensors to analyze swab samples, potentially reducing laboratory processing time.
Researchers have created 'backpacking' bacteria that can carry micro- or nano-sized molecules or devices with useful properties. These biohybrid devices can move freely while carrying cargo, and the team plans to test their feasibility in laboratory experiments and potentially use them for diagnosing and treating diseases.
Researchers at Texas A&M University have developed a way to control the formation and dispersal of biofilms by manipulating bacterial signals. This breakthrough enables the creation of novel bioreactors that can efficiently produce chemicals and potentially transform the economy.
Researchers at Case Western Reserve University discovered that Fusobacterium nucleatum breaks the junctures in blood vessel cells, allowing bacteria like E. coli to invade the body. The oral bacterium triggers a cascade of signals that creates space for harmful invaders to enter the bloodstream.
Scientists have discovered a new communication code employed by disease-causing bacteria, which is recognized by plant and animal immune receptors. This discovery has significant implications for controlling bacterial diseases and could lead to new methods for treatment.
Researchers discovered a new bacterial signal that enables invading bacteria to coordinate attacks on plants, but also triggers a defense response in targeted rice plants. The study found that the protein Ax21 is secreted by bacteria and induces an immune response in rice, leading to a stronger defense against infection.
The university will conduct research on deciphering and controlling the signaling processes in bacterial multicellular systems and bacteria-host interactions. This study aims to understand persister formation in biofilm development and manipulate the multicellular and inter-kingdom signaling processes.
Scientists at Woods Hole Oceanographic Institution discovered that bacterial communication plays a crucial role in the ocean's carbon cycle. By sending chemical signals, bacteria can break down carbon-rich particles, potentially reducing the amount of carbon dioxide being drawn out of the atmosphere and transferred to the ocean.
A study published in Gut found that specific types of mouth bacteria are associated with pancreatic cancer. The researchers identified two key species - Neisseria elongata and Streptococcus mitis - which were significantly less present in cancer patients' mouths, while Granulicatella adjacens levels were higher.
The study reveals a complex cascade of enhancer binding proteins (EBPs) that initiates the formation of biofilms. Bacterial cells require cooperative behavior similar to higher organisms, and understanding this process is crucial for developing new ways to prevent and treat infected surfaces.
Scientists have developed bacteria that produce disease-fighting substances and deliver them to diseased areas of the body. The 'bacterial dirigibles' use biochemical delivery addresses to navigate to specific cells, producing substances to fight diseases.
Researchers used image-analysis methods to analyze microcinematic movies of bacteria forming aggregates, revealing that size matters most in predicting survival. The team found a signaling mechanism within the aggregate itself that trumps neighbor-related factors, contradicting existing theories.
Researchers have successfully imaged the three-dimensional structure of Salmonella's needle complex with unprecedented precision, shedding light on its deadly mechanism. By combining high-resolution cryo-electron microscopy and advanced imaging software, the team was able to generate a single sharp image from thousands of blurred ones.
Researchers at the University of Illinois Chicago have discovered a signaling mechanism in the bacterial ribosome that detects proteins activating genes for antibiotic resistance. This mechanism may lead to the development of more effective antibiotics by understanding how signals are generated and transmitted within the ribosome.
Researchers have discovered a class of molecules that can target quorum sensing, a key mechanism used by bacteria to communicate and coordinate their behavior. By blocking this system, scientists hope to develop new drugs that can prevent bacterial infections without promoting resistance.
Researchers have found a new potential treatment target for bone disease osteomyelitis by interrupting the bacterial death signal that instructs bone cells to die. Blocking this signal could prevent or treat painful bone infections resistant to antibiotics.
Research reveals that a small percentage of bacteria become highly resistant supermutants, while most survive without being resistant to antibiotics. These supermutants produce high levels of indole, a signaling molecule that promotes survival in harsh environments.
Pathogens such as Neisseria gonorrhoeae use a delayed entry strategy to survive in the human body, strengthening cellular skeletons and anchoring to cell surfaces. This new understanding may have exciting implications for preventing infection with various bacterial agents.
Researchers discovered a new strategy used by bacterial pathogens like Neisseria gonorrhoeae and Escherichia coli, which delay entry into cells to prolong extracellular existence and survive. This strategy involves triggering local strengthening of the cellular skeleton that resists pathogen entry.
A new study has developed a computational approach to classify bacterial navigation systems, revealing over a dozen versions and assigning hundreds of species to each. This discovery allows for predicting how individual bacteria use their 'navigation' system to move towards favorable environments.
Researchers developed a biosensor to study cell division in bacteria, finding that the regulatory messenger c-di-GMP is distributed unevenly between swimming and stay-put cells. This asymmetrical distribution affects enzyme production and cell function, with implications for bacterial behavior and disease.
Researchers discovered a new bacterial signaling molecule, cyclic-di-AMP, which stimulates a strong immune response in host cells. This molecule may be used to improve vaccines that use live or disabled bacteria, making them more effective against pathogens such as Listeria.
Enterococci bacteria are becoming increasingly resistant to antibiotics, posing a significant threat to hospital-acquired infections. K-State researcher Lynn Hancock is studying the formation of biofilms that enable these bacteria to resist antibiotics and cause severe infections.
Researchers design plastics to capture signaling molecules, blocking bacterial infection and biofilm formation. The approach aims to combat antibiotic-resistant bacteria and reduce the risk of infections.
Bile secretions in the small intestine send signals to disease-causing gut bacteria, enabling them to adapt and prepare to cause disease. The presence of bile triggers genes that increase iron uptake, a crucial nutrient for bacterial growth.
The study reveals that Mycobacterium tuberculosis uses small RNAs to subtly tweak bacterial production in response to environmental signals, enhancing its survival. This understanding can lead to the design of new drugs targeting persistent TB forms.
Bile helps E. coli O157:H7 bacteria survive by increasing iron uptake, while reducing attachment to host cells in the large intestine. This study could lead to better protection of food from contamination and a deeper understanding of bacterial disease mechanisms.
Researchers have identified a molecule that blocks a key signaling pathway in pathogenic gut bacteria, reducing toxin production and preventing infection. This breakthrough discovery represents a novel class of antimicrobial agents with broad-spectrum efficacy.
Researchers found that maggot 'biosurgeons' used to treat chronic wounds are vulnerable to deadly bacteria Pseudomonas aeruginosa, which can kill the maggots within 20 hours. This discovery could lead to more effective treatment of wounds and development of novel antibiotics.
Researchers at Binghamton University identified specific types of chronic wound bacteria producing cell-cell signaling molecules AI-2 and AHLs. The 'good' bacteria produce AI-2, while pathogenic species produce AHLs, which can be targeted to improve wound healing.
Researchers developed a new approach to control chemical microenvironments using light and microparticles to mimic bacterial trails. They guided neutrophils to move along defined paths in response to artificial chemical signals.
Researchers developed a tool to visualize bacterial communication, revealing that chemical signals function simultaneously in interspecies interactions. This approach may aid in understanding microbial interactions with human cells, leading to novel immune system modulators and anti-infectives.
Researchers at UC Davis identified a bacterial signaling molecule that matches up with a specific receptor in rice plants to ward off bacterial blight disease. The study's findings have implications for controlling diseases in plants and people, potentially leading to new treatments.
Pseudomonas aeruginosa produces rhamnolipids to form a biofilm shield that kills white blood cells, evading the immune system and antibiotic treatment. This 'launch a shield' response could lead to novel antimicrobials for treating antibiotic-resistant infections.
Researchers used state-of-the-art electron microscopy techniques to study chemoreceptors in bacteria, finding a consistent lattice structure with hexagonal symmetry across 13 different species. This discovery may provide insights into complex signaling pathways and the evolution of bacterial cells.
Researchers found that commensal bacteria in the human gut activate the immune system against Toxoplasma gondii by releasing signaling molecules, inducing inflammatory responses. The study suggests looking at gut bacteria to understand susceptibility to infectious diseases and developing novel probiotic strategies.