ArticleInfection and immunity2016
Thermal Unfolding of the Pertussis Toxin S1 Subunit Facilitates Toxin Translocation to the Cytosol by the Mechanism of Endoplasmic Reticulum-Associated Degradation.
Article in Infection and immunity, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
What it found
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Who cites it
25 citing papers in PubMed, 26 citations in OpenAlex.
- Novel endogenous protein-based strategies to inhibit clinically relevant bacterial AB-type toxins including pertussis toxin.Archives of toxicology · 2026Review
- The Battle Against Pertussis: Discovery of Endogenous Human Proteins and Peptides as Toxin-Inhibitors.Toxins · 2026Review
- Mechanisms of Pertussis Toxin Action: ADP-Ribosylation and Its Role in Pertussis Pathogenesis.Toxins · 2026Review
- An endogenous human peptide derived from αNaunyn-Schmiedeberg's archives of pharmacology · 2026Article
- The antiarrhythmic drugs amiodarone and dronedarone inhibit intoxication of cells with pertussis toxin.Naunyn-Schmiedeberg's archives of pharmacology · 2024Article
- ER-transiting bacterial toxins amplify STING innate immune responses and elicit ER stress.Infection and immunity · 2024Article
- The Chaperonin TRiC/CCT Inhibitor HSF1A Protects Cells from Intoxication with Pertussis Toxin.Toxins · 2024Article
- Domperidone InhibitsToxins · 2023Article
- Inhibition of Pertussis Toxin by Human α-Defensins-1 and -5: Differential Mechanisms of Action.International journal of molecular sciences · 2023Article
- Targeting the Inside of Cells with Biologicals: Toxin Routes in a Therapeutic Context.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2023Review
- The cytopathic activity of cholera toxin requires a threshold quantity of cytosolic toxin.Cellular signalling · 2023Article
- Crystal structures of pertussis toxin with NADThe Journal of biological chemistry · 2022Article
- Aluminum hydroxide adjuvant diverts the uptake and trafficking of genetically detoxified pertussis toxin to lysosomes in macrophages.Molecular microbiology · 2022Article
- Exotoxin-Targeted Drug Modalities as Antibiotic Alternatives.ACS infectious diseases · 2022Review
- Novel Strategies to Inhibit Pertussis Toxin.Toxins · 2022Review
- Requirement of Peptidyl-Prolyl Cis/Trans isomerases and chaperones for cellular uptake of bacterial AB-type toxins.Frontiers in cellular and infection microbiology · 2022Review
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- Pharmacological targeting of host chaperones protects from pertussis toxin in vitro and in vivo.Scientific reports · 2021Article
- A binding motif for Hsp90 in the A chains of ADP-ribosylating toxins that move from the endoplasmic reticulum to the cytosol.Cellular microbiology · 2019Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Pertussis toxin (PT) moves from the host cell surface to the endoplasmic reticulum (ER) by retrograde vesicular transport. The catalytic PTS1 subunit dissociates from the rest of the toxin in the ER and then shifts to a disordered conformation which may trigger its export to the cytosol through the quality control mechanism of ER-associated degradation (ERAD). Functional roles for toxin instability and ERAD in PTS1 translocation have not been established. We addressed these issues with the use of a surface plasmon resonance system to quantify the cytosolic pool of PTS1 from intoxicated cells. Only 3% of surface-associated PTS1 reached the host cytosol after 3 h of toxin exposure. This represented, on average, 38,000 molecules of cytosolic PTS1 per cell. Cells treated with a proteasome inhibitor contained larger quantities of cytosolic PTS1. Stabilization of the dissociated PTS1 subunit with chemical chaperones inhibited toxin export to the cytosol and blocked PT intoxication. ERAD-defective cell lines likewise exhibited reduced quantities of cytosolic PTS1 and PT resistance. These observations identify the unfolding of dissociated PTS1 as a trigger for its ERAD-mediated translocation to the cytosol.
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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.