ArticleNMR in biomedicine2016
Characterization of a novel MR-detectable nanoantioxidant that mitigates the recall immune response.
Article in NMR in biomedicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 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
3 citing papers in PubMed, 4 citations in OpenAlex.
- Polyethylene glycol and immunology: aspects of allergic reactions and their mechanisms, as well as ways to prevent them in clinical practice.Immunologic research · 2024Review
- Antioxidant Carbon Nanoparticles Inhibit Fibroblast-Like Synoviocyte Invasiveness and Reduce Disease Severity in a Rat Model of Rheumatoid Arthritis.Antioxidants (Basel, Switzerland) · 2020Article
- Characterization of a novel MR-detectable nanoantioxidant that mitigates the recall immune response.NMR in biomedicine · 2016Article
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
Abstract
In many human diseases, the presence of inflammation is associated with an increase in the level of reactive oxygen species (ROS). The resulting state of oxidative stress is highly detrimental and can initiate a cascade of events that ultimately lead to cell death. Thus, many therapeutic attempts have been focused on either modulating the immune system to lower inflammation or reducing the damaging caused by ROS. Berlin et al. reported the development of a novel nanoantioxidant known as poly(ethylene glycol)-functionalized-hydrophilic carbon clusters (PEG-HCCs). They showed that PEG-HCCs could be targeted to cancer cells, utilized as a drug delivery vector, and can even be visualized ex vivo. Our work here furthers this work and characterizes Gd-DTPA conjugated PEG-HCCs and explores the potential for in vivo tracking of T cells in live mice. We utilized a mouse model of delayed-type hypersensitivity (DTH) to assess the immunomodulatory effects of PEG-HCCs. The T1 -agent Gd-DTPA was then conjugated to the PEG-HCCs and T1 measurements, and T1 -weighted MRI of the modified PEG-HCCs was done to assess their relaxivity. We then assessed if PEG-HCCs could be visualized both ex vivo and in vivo within the mouse lymph node and spleen. Mice treated with PEG-HCCs showed significant improvements in the DTH assay as compared to the vehicle (saline)-treated control. Flow cytometry demonstrated that splenic T cells are capable of internalizing PEG-HCCs whereas fluorescent immunohistochemistry showed that PEG-HCCs are detectable within the cortex of lymph nodes. Finally, our nanoantioxidants can be visualized in vivo within the lymph nodes and spleen of a mouse after addition of the Gd-DTPA. PEG-HCCs are internalized by T cells in the spleen and can reduce inflammation by suppression of a recall immune response. PEG-HCCs can be modified to allow for both in vitro and in vivo visualization using MRI. © 2016 The Authors. NMR in Biomedicine published by John Wiley & Sons Ltd.
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Registered trials
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