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Displaying results 621 to 630 of 679.
Experimental Infection Research
If we are attacked by a virus, the immune system reacts within a matter of hours. Highly specialized immune cells recognise the pathogen and release highly efficient messengers, which activate the immune system. These messengers include the interferons, which ensure that individual host cells are mildly infected . At the same time, interferons can also influence the course of the immune response and the memory of the immune system. Without these messengers virus infections - which we normally overcome almost unnoticeably - become fatal within just a few days. The group Experimental Infection Research is based at the TWINCORE in Hannover.
Evolutionary Community Ecology
Humans are increasingly part of these interaction networks and pathogen transmission from animals to humans is occurring at increasing rates. Indeed, emerging zoonotic disease are an increasing threat to human health and most of these diseases have their origins in wildlife. Microorganisms and their associated diseases also influence animal populations’ persistence and conservation, with some spilling over to animals from humans as well. The research group ‘evolutionary community ecology’ explores how the changing composition of animal communities has cascading impacts on their microbial communities, diseases, and rates of transmission, including to humans. The department is located at the Helmholtz Institute for One Health .
Epidemiology and ecology of antimicrobial resistance
Due to the interconnectedness between humans, animals and the environment, as well as the rapid potential for antimicrobial resistance to spread between bacterial species, we need a One Health approach to adequately address the threat of antibiotic resistance. This department is based at the Helmholtz Institute for One Health .
Single-cell Analysis
Pathogenic bacteria can reside in a mammalian host for a life-long period and chronic carriers form a reservoir leading to recurrent infections. Despite the importance of chronic infections for public health, how a subset of pathogens escape the host’s immune surveillance and how the host contains the spread of bacteria are still poorly understood. Scientists within the Single-Cell Analysis group develop and use single-cell transcriptomics and computational approaches to decipher the microenvironments of individual pathogens and ultimately their functional consequences on infection outcome. This group is located at the Helmholtz Institute for RNA-based Infection Research (HIRI).
Dynamics of Respiratory Infections
Several chronic inflammatory diseases of the lung have been recently associated with alterations in the composition of the airway microbiome. Moreover, the lung microbiota can be classified according to its predominance either of proinflammatory bacteria, such as strains from the genera S taphylococcus, Pseudomonas , and Haemophilus or of low-stimulatory bacteria from genera like Prevotella, Streptococcus , and Veillonella . Moreover, it is already known that the commensal lung microbiota can influence host immune system activation by producing numerous structural ligands and metabolites such as lipopolysaccharide, peptidoglycan, and secondary metabolites. However, the interaction between the lung microbiota and the airway epithelium, as well as their interactions with pulmonary pathogens, are not well understood.
Chemical Biology
In their ongoing quest for new therapies against pathogens, scientists are focusing primarily on chemical agents. Discovering new bioactive compounds, characterising their functionality and optimising their properties are the three main goals of the Department of Chemical Biology (CBIO) at the HZI.
Biological Barriers and Drug Delivery
While considering the confusing flood of drugs in the pharmacies it is hard to believe in a lack of medication. But there are still many infectious diseases and also cancer that cannot be treated sufficiently. During a medical treatment it is essential that the drug arrives at the envisaged body region. Read more about the research of the department “Biological Barriers and Drug Delivery” on techniques for the correct distribution of novel drugs. This group is located at the Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) .
Anti-infectives from Microbiota
The department of Prof Christine Beemelmanns focuses on the identification and functional analysis of novel anti-infective natural products from microbial communities. Co-cultivation studies as well as cell-based assays in combination with chemical-analytical and molecular-biological methods are used to evaluate and prioritize novel natural product producers. The department uses established and innovative metabolomic-, activity and genome-based methods to identify and determine the structure of the secreted natural products. Based on the isolated novel natural substances, the functional analysis and evaluation of their range of effects is carried out. This department is located at the Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) .
Cellular Proteome Research
Pathogenic bacteria and viruses utilize and manipulate cellular processes of our immune system. The identification of protein functions in the human immune system that decisively control the progression of infections constitutes the central aim of the research group Cellular Proteomics at the HZI.
Cell Biology
Recent reports published by the World Health Organization (WHO) entitled "The Global Burden of Disease" (GBD) highlights the importance of research on host-pathogen interactions. Evolution is an ongoing process driving the development of highly virulent and multi-resistant bacteria strains or so called “emerging pathogens“. A deeper understanding of the complex interaction between pathogenic bacteria and their host is inevitable to face these problems in the future. As Cell biologists, we address host-pathogen interaction on the level of single cells, embodying the smallest living unit on both sides. Upon contact, pathogens need to manipulate the normal behavior of host cells in order to establish a niche for survival and to evade the hosts defense mechanisms. We study these induced changes on the cellular and molecular level, in order to exactly understand which host process is targeted by a given virulence mechanism an why.
