Cited by 69Mitochondrial Function and PathologyNeutrophil, Myeloperoxidase and Oxidative MechanismsImmune Response and Inflammation

Lactoferrin decreases LPS-induced mitochondrial dysfunction in cultured cells and in animal endotoxemia model

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Kruzel, Marian L., Actor, Jeffrey K., Radak, Zsolt, Bacsi, Attila, Saavedra-Molina, Alfredo, Boldogh, Istvan·2010·Innate Immunity

Abstract

Lactoferrin is a non-heme iron-binding glycoprotein, produced by mucosal epithelial cells and granulocytes in most mammalian species. It is involved in regulation of immune responses, possesses anti-oxidant, anti-carcinogenic, anti-inflammatory properties, and provides protection against various microbial infections. In addition, lactoferrin has been implicated in protection against the development of insult-induced systemic inflammatory response syndrome (SIRS) and its progression into septic conditions in vivo. Here we show a potential mechanism by which lactoferrin lessens oxidative insult at the cellular and tissue levels after lipopolysaccharide (LPS) exposure. Lactoferrin pretreatment of cells decreased LPS-mediated oxidative insults in a dose-dependent manner. Lipopolysaccharide-induced oxidative burst was found to be of mitochondrial origin, and release of reactive oxygen species (ROS) was localized to the respiratory complex III. Importantly, lactoferrin nearly abolished LPS-induced increases in mitochondrial ROS generation and the accumulation of oxidative damage in the DNA. In vivo, pretreatment of experimental animals with lactoferrin significantly (P<0.05) lowered LPS-induced mitochondrial dysfunction as shown by both decreased release of H 2 O 2 and DNA damage in the mitochondria. In contrast, deferoxamine, an iron chelating compound, provided only partial protection in LPS-treated animals. Together, these data suggest that lactoferrin protects against oxidative insult at the mitochondrial level, and indicate a potential utility of lactoferrin in prevention and treatment of SIRS.

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  • In an endotoxemic mouse model, lactoferrin decreased LPS-induced oxidative burst and reactive oxygen species in cultured cells and attenuated mitochondrial dysfunction in liver of endotoxemic mice.

    “In an endotoxemic mouse model, lactoferrin, a nonheme iron-binding glycoprotein, decreased LPS-induced oxidative burst and reactive oxygen species in cultured cells and attenuated mitochondrial dysfunction in liver of endotoxemic mice [86].”

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  1. [23]Bespalov IA Bond JP Purmal AA Wallace SS Melamede RJ FAbs specific for 8-oxoguanine: control of DNA binding J Mol Biol 1999 293 1085 1095 10547287
  2. [49]Kluepfel D Sehgal SN Vezina C Antimycin A components. I. Isolation and biological activity J Antibiot (Tokyo) 1970 23 75 80 5416654

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Authors
Kruzel, M. L., Actor, J. K., Radak, Z., Bacsi, A., Saavedra-Molina, A., & Boldogh, I.
Affiliations
  • The University of Texas Health Science Center at Houston (US)
  • Semmelweis University (HU)
  • Institute of Immunology, University of Debrecen, Debrecen, Hungary
  • Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, México
  • The University of Texas Medical Branch at Galveston (US)
Venue
Innate Immunity
Published
2009-09-01
Volume
16
Issue
2
Pages
67-79
ISSN
  • 1753-4259 (ISSN-L)
  • 1753-4267
OpenAlex
W1978667507
Cited by
69
References
56
Citations by year
2026: 2 · 2025: 4 · 2024: 2 · 2023: 3 · 2022: 5 · 2021: 5 · 2020: 6 · 2019: 4 · 2018: 5 · 2017: 4 · 2016: 1 · 2015: 6 · 2014: 3 · 2013: 3 · 2012: 7
FWCI
2.15
Type
journal article
Language
en
Open access
Locations
  • Innate Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • University of Debrecen Electronic Archive (University of Debrecen) (submittedVersion)
Funders
  • U.S. Public Health Service (EOS 0 06677)
  • National Institute on Aging (P01AG021830)
  • National Institute of General Medical Sciences (R41GM079810)
  • National Institute of Allergy and Infectious Diseases (AI062885-01, P01AI062885)
  • National Institute of Environmental Health Sciences (P30ES006676)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
lactoferrin, lipopolysaccharide, mitochondrial dysfunction, oxidative stress, reactive oxygen species, respiratory complex III, DNA damage, endotoxemia, systemic inflammatory response syndrome, sepsis, deferoxamine, iron chelation, respiratory burst
MeSH terms
Animals, Deferoxamine, Disease Models, Animal, DNA Damage, Dose-Response Relationship, Immunologic, Epithelial Cells, Humans, Hydrogen Peroxide, Lactoferrin, Lipopolysaccharides, Mice, Inbred BALB C, Mitochondria, Monocytes, Electron Transport Complex III, Siderophores, Reactive Oxygen Species, Oxidative Stress, Endotoxemia, U937 Cells, Mice

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