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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Ferrous ions and reactive oxygen species increase antigen-binding and anti-inflammatory activities of immunoglobulin G.

Polyspecific antibodies represent a first line of defense against infection and regulate inflammation, properties hypothesized to rely on their ability to interact with multiple antigens. We demonstrated that IgG exposure to pro-oxidative ferrous ions or to reactive oxygen species enhances paratope flexibility and hydrophobicity, leading to expansion of the spectrum of recognized antigens, regulation of cell proliferation, and protection in experimental sepsis. We propose that ferrous ions, released from transferrin and ferritin at sites of inflammation, synergize with reactive oxygen species to modify the immunoglobulins present in the surrounding microenvironment, thus quenching pro-inflammatory signals, while facilitating neutralization of pathogens.[1]

References

  1. Ferrous ions and reactive oxygen species increase antigen-binding and anti-inflammatory activities of immunoglobulin G. Dimitrov, J.D., Ivanovska, N.D., Lacroix-Desmazes, S., Doltchinkova, V.R., Kaveri, S.V., Vassilev, T.L. J. Biol. Chem. (2006) [Pubmed]
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