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Assessing the possibility of interactions of various metals with alpha-2-macroglobulin and other human blood proteins in vitro

https://doi.org/10.47183/mes.2023.011

Abstract

Homeostasis of metals plays an important role in functioning of the body. Not only the concentrations of toxic and essential metals in bodily fluids, but also their ability of interaction with proteins and enzymes defining the enzyme activity, are important. The study was aimed to compare the possibilities of binding interactions between various metal ions and human serum proteins. Chemical reactions between the immobilized metal ions (Cu2+, Zn2+, Mn2+, Ca2+, Fe3+, Mg2+, Hg+, Cd2+, Pb2+, Cr3+, Co2+, Ag+, Bi2+, Ba2+, Sr2+) and the serum proteins or highly purified blood metalloprotein (alpha-2-macroglobulin, α2M) were assessed by the crossed immunoelectrophoresis with in situ adsorption in the second dimension. It has been shown that Hg+, Cu2+, Zn2+, Cd2+ ions more actively interact with metalloproteins (particularly, with α2M) and many other human blood proteins in in vitro reactions than other ions. We have demonstrated that α2M interacts not only with Zn2+ and Cd2+ ions, as earlier reported, but also with Ca2+, Mg2+, Fe3+, Mn2+, Pb2+, Sr2, Ag+. Interaction of a number of metal ions, including highly toxic ones, with blood proteins that are not metalloproteins has been revealed. The findings confirm the fundamental possibility of the metal ion imbalance active involvement in metabolic disorders via effects on the body's regulatory and transport proteins, which requires further investigation

 

About the Authors

V. N. Zorina
Golikov Research Clinical Center of Toxicology of the Federal Medical and Biological Agency
Russian Federation

Veronika N. Zorina
Bekhtereva, 1, Saint-Petersburg, 192019



E. A. Evdokimova
Golikov Research Clinical Center of Toxicology of the Federal Medical and Biological Agency
Russian Federation

Saint-Petersburg



V. L. Rejniuk
Golikov Research Clinical Center of Toxicology of the Federal Medical and Biological Agency
Russian Federation

Saint-Petersburg



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Review

For citations:


Zorina V.N., Evdokimova E.A., Rejniuk V.L. Assessing the possibility of interactions of various metals with alpha-2-macroglobulin and other human blood proteins in vitro. Extreme Medicine. 2023;25(2):105-111. https://doi.org/10.47183/mes.2023.011

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ISSN 2713-2757 (Print)
ISSN 2713-2765 (Online)