Cited by 26Magnesium Alloys: Properties and ApplicationsTitanium Alloys Microstructure and PropertiesMagnesium in Health and Disease

Biodegradable magnesium materials regulate ROS-RNS balance in pro-inflammatory macrophage environment

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Kwesiga, Maria P., Gillette, Amani A., Razaviamri, Fatemeh, Plank, Margaret E., Canull, Alexia L., Alesch, Zachary, He, Weilue, Lee, Bruce P. +1 more·2023·Bioactive Materials

Abstract

The relationship between reactive oxygen and nitrogen species (ROS-RNS) secretion and the concomitant biocorrosion of degradable magnesium (Mg) materials is poorly understood. We found that Mg foils implanted short term in vivo (24 h) displayed large amounts of proinflammatory F4/80+/iNOS + macrophages at the interface. We sought to investigate the interplay between biodegrading Mg materials (98.6% Mg, AZ31 & AZ61) and macrophages (RAW 264.7) stimulated with lipopolysaccharide (RAW 264.7LPS) to induce ROS-RNS secretion. To test how these proinflammatory ROS-RNS secreting cells interact with Mg corrosion in vitro, Mg and AZ61 discs were suspended approximately 2 mm above a monolayer of RAW 264.7 cells, either with or without LPS. The surfaces of both materials showed acute (24 h) changes when incubated in the proinflammatory RAW 264.7LPS environment. Mg discs incubated with RAW 264.7LPS macrophages showed greater corrosion pitting, while AZ61 showed morphological and elemental bulk product changes via scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX). X-ray photoelectron spectroscopy (XPS) analysis showed a reduction in the Ca/P ratio of the surface products for AZ61 disc incubated with RAW 264.7LPS, but not the Mg discs. Moreover, RAW 264.7LPS macrophages were found to be more viable in the acute biodegradative environment generated by Mg materials, as demonstrated by calcein-AM and cleaved (active) caspase-3 staining (CC3). LPS stimulation caused an increase in ROS-RNS, and a decrease in antioxidant peroxidase activity. Mg and AZ61 were found to change this ROS-RNS balance, independently of physiological antioxidant mechanisms. The findings highlight the complexity of the cellular driven acute inflammatory responses to different biodegradable Mg, and how it can potentially affect performance of these materials.

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Crossref · 10.1016/j.bioactmat.2022.10.017

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  • Elevated ROS levels and the localized acidic microenvironment may exacerbate the non-uniform corrosion property of Mg implants.

    “Elevated ROS levels and the localized acidic microenvironment may further exacerbate the non-uniform corrosion property of Mg implants16.”

    From Intelligence-responsive wettability switch coating on magnesium implants for treating osteoporotic fracture (2026) · cites this paper as [16]

    The Conclusions (page not specified) report that pro-inflammatory macrophages caused more localized corrosion of Mg discs. The Discussion, under “The ROS-RNS balance in stimulated RAW264.7 cells incubated with AZ61 and Mg” (page not specified), says ROS-RNS secretion or pH regulation might contribute, but the study did not establish that elevated ROS and a localized acidic microenvironment specifically caused the non-uniform corrosion. (LLM, conf=0.85)

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  1. [4]Denktas A.E. Grines C. Chapter 19 - percutaneous coronary intervention Levine G.N. Cardiology Secrets 2018 Fifth Edition Elsevier 172 182

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Authors
Kwesiga, M. P., Gillette, A. A., Razaviamri, F., Plank, M. E., Canull, A. L., Alesch, Z., He, W., Lee, B. P., & Guillory, R. J.
Affiliations
  • Michigan Technological University (US)
  • University of Wisconsin–Madison (US)
Corresponding author
Guillory, Roger J.
Venue
Bioactive Materials
Publisher
Elsevier BV
Published
2023-05
Volume
23
Pages
261-273
ISSN
  • 2097-1192 (ISSN-L)
  • 2452-199X
OpenAlex
W4309263885
Cited by
25
References
59
Citations by year
2026: 4 · 2025: 6 · 2024: 10 · 2023: 5
FWCI
1.31
Type
journal article
Language
en
Open access
Locations
  • Bioactive Materials (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Digital Commons - Michigan Tech (Michigan Technological University) (submittedVersion, cc-by-nc-nd)
  • Language arts journal of Michigan (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Science Foundation (2001076, R15GM135875)
  • Michigan Technological University
  • National Institutes of Health (DMR 2001076)
  • National Institute of General Medical Sciences (R15GM135875)
  • Division of Materials Research (2001076, DMR-2001076)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Magnesium Alloys: Properties and Applications
  • Physical Sciences › Materials Science › Materials Chemistry › Titanium Alloys Microstructure and Properties
  • Health Sciences › Nursing › Nutrition and Dietetics › Magnesium in Health and Disease
Keywords
biodegradable magnesium, magnesium corrosion, reactive oxygen species, reactive nitrogen species, macrophages, lipopolysaccharide, AZ31 magnesium alloy, AZ61, pitting corrosion, calcium/phosphate ratio, macrophage viability, caspase-3, implant biocompatibility

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