Host defenses11 sources
Pathogen Metal Acquisition Systems
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Search: “MS”
Ranked matches across titles, topics, categories, and article introductions, filtered to defense.
15 records in this view
Host defenses12 sources
Antimicrobial Metals
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Host defenses4 sources
Biofilm
Structured microbial communities encased in a self-produced extracellular polymeric substance (EPS) matrix. Biofilms are the predominant mode of bacterial and fungal growth in chronic infections, device-associated infections, and the gut. From a metallomics perspective,…
Host defenses4 sources
Dietary Iron and Gut Ecology
iron occupies a unique position among dietary metals: it is both an essential nutrient and a selective pressure that shapes the gut microbial ecosystem. The form, quantity, and bioavailability of dietary iron determines which microbes thrive and which are competitively …
Host defenses3 sources
Ferritin
The primary intracellular iron storage protein, capable of sequestering up to 4,500 iron atoms in a single molecule as a mineralized ferric oxyhydroxide core. Ferritin is one of the most elegant solutions evolution has produced for the iron paradox: iron is essential fo…
Host defenses12 sources
Inter-Kingdom Metal Shielding
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Host defenses5 sources
Lactoferrin
An iron-binding glycoprotein of the transferrin family that sequesters iron (and potentially other metals) from pathogens at mucosal surfaces and sites of inflammation. Lactoferrin is a key effector of nutritional immunity, complementing calprotectin's role in metal res…
Host defenses3 sources
Metal Homeostasis
The biological processes by which organisms maintain proper intracellular and systemic concentrations of essential metals -- importing what is needed, storing excess safely, and exporting or sequestering surplus. Both host and microbial systems have evolved elaborate me…
Host defenses8 sources
Metal-Dependent Virulence
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Host defenses12 sources
Metal-Driven Inflammation
Inflammation is a broad concept, but in the metallomics context it has a specific character: heavy metals and pathogens activate overlapping inflammatory pathways, creating convergent pathology where distinguishing the metal contribution from the microbial contribution …
Host defenses13 sources
Microbial Metallomics
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Host defenses8 sources
N-Acetylcysteine (NAC)
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Host defenses5 sources
Siderophore Competition
Small, high-affinity iron-chelating molecules secreted by bacteria and fungi to scavenge ferric iron (Fe3+) from the environment. Siderophore competition is a fundamental ecological force in the gut microbiome: organisms with superior iron acquisition systems gain a dec…
Host defenses14 sources
Siderophores
Siderophores are small, high-affinity iron-chelating molecules secreted by bacteria, fungi, and some plants to scavenge ferric iron (Fe3+) from their environment. In the context of infection, siderophores are the molecular weapons pathogens deploy to break through nutri…
Host defenses12 sources
Superoxide Dismutase
This knowledge-base record is being expanded from WikiBiome’s evidence graph.