ArticlePLoS pathogens2014
The host protein calprotectin modulates the Helicobacter pylori cag type IV secretion system via zinc sequestration.
Article in PLoS pathogens, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
64 citing papers in PubMed, 87 citations in OpenAlex.
- Article
- A zinc-free alternative ribosomal protein RpsN.2 confers survival advantage to group A streptococcus during Zn scarcity.Infection and immunity · 2025Article
- Forging biofilms: metal-induced microbial responses in biofilm formation.Journal of bacteriology · 2025Review
- Calprotectin-mediated survival ofmBio · 2025Article
- Metals in the gut: microbial strategies to overcome nutritional immunity in the intestinal tract.Metallomics : integrated biometal science · 2024Review
- Manganese uptake by MtsABC contributes to the pathogenesis of human pathogen group A streptococcus by resisting host nutritional immune defenses.Infection and immunity · 2024Article
- Microneedle array delivery ofiScience · 2024Article
- Generation and Application of Monoclonal Antibodies against Porcine S100A8, S100A9, and S100A12 Proteins Using Hybridoma Technology.International journal of molecular sciences · 2024Article
- Article
- Review
- IL-17 Receptor Signaling through IL-17A or IL-17F Is Sufficient to Maintain Innate Response and Control ofImmunoHorizons · 2022Article
- Altered Mitochondrial Homeostasis during Systemic Lupus Erythematosus Impairs Neutrophil Extracellular Trap Formation Rendering Neutrophils Ineffective at CombatingJournal of immunology (Baltimore, Md. : 1950) · 2022Article
- The Effects of Vitamins and Micronutrients onJournal of immunology research · 2022Review
- Yersiniabactin contributes to overcoming zinc restriction duringProceedings of the National Academy of Sciences of the United States of America · 2021Article
- The impact of metal availability on immune function during infection.Trends in endocrinology and metabolism: TEM · 2021Review
- The Zinc Transporter ZnuABC Is Critical for the Virulence of Chromobacterium violaceum and Contributes to Diverse Zinc-Dependent Physiological Processes.Infection and immunity · 2021Article
- Zinc Deprivation as a Promising Approach for Combating Methicillin-ResistantPathogens (Basel, Switzerland) · 2021Article
- Calprotectin (S100A8/A9) Is an Innate Immune Effector in Experimental Periodontitis.Infection and immunity · 2021Article
- The Innate Immune Glycoprotein Lactoferrin Represses the Helicobacter pylori cag Type IV Secretion System.Chembiochem : a European journal of chemical biology · 2021Article
- Nutritional immunity: targeting fungal zinc homeostasis.Heliyon · 2021Review
4 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 2 institutions in 1 country.
Funding
Abstract
Transition metals are necessary for all forms of life including microorganisms, evidenced by the fact that 30% of all proteins are predicted to interact with a metal cofactor. Through a process termed nutritional immunity, the host actively sequesters essential nutrient metals away from invading pathogenic bacteria. Neutrophils participate in this process by producing several metal chelating proteins, including lactoferrin and calprotectin (CP). As neutrophils are an important component of the inflammatory response directed against the bacterium Helicobacter pylori, a major risk factor for gastric cancer, it was hypothesized that CP plays a role in the host response to H. pylori. Utilizing a murine model of H. pylori infection and gastric epithelial cell co-cultures, the role CP plays in modifying H. pylori -host interactions and the function of the cag Type IV Secretion System (cag T4SS) was investigated. This study indicates elevated gastric levels of CP are associated with the infiltration of neutrophils to the H. pylori-infected tissue. When infected with an H. pylori strain harboring a functional cag T4SS, calprotectin-deficient mice exhibited decreased bacterial burdens and a trend toward increased cag T4SS -dependent inflammation compared to wild-type mice. In vitro data demonstrate that culturing H. pylori with sub-inhibitory doses of CP reduces the activity of the cag T4SS and the biogenesis of cag T4SS-associated pili in a zinc-dependent fashion. Taken together, these data indicate that zinc homeostasis plays a role in regulating the proinflammatory activity of the cag T4SS.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.