Synthesis of Magnetic Nanoparticles Stabilized by Magnetite-Binding Protein for Targeted Delivery to Cancer Cells


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Abstract

A new method for obtaining biomodified magnetite nanoparticles for targeted delivery to cells was developed. The method is based on the use of the C-terminal fragment of the Mms6 protein, which is involved in the magnetite biomineralization during the synthesis of magnetosomes in magnetotactic bacteria Magnetospirillum magneticum AMB-1, and the barnase*barstar high-affinity protein pair. The Mms6 protein fragment is required for stabilizing magnetite, and the barnase*barstar pair mediates the interaction between nanoparticles and the component for modification. The efficiency of this method was confirmed in the synthesis of magnetite nanoparticles recognizing the HER2/neu tumor marker and in the selective labeling of HER2/neu with these nanoparticles on the surface of cancer cells.

About the authors

P. A. Kotelnikova

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry; Moscow Institute of Physics and Technology (State University)

Email: viktoriya.shipunova@phystech.edu
Russian Federation, Moscow; Dolgoprudnyi, Moscow oblast

V. O. Shipunova

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry; Moscow Institute of Physics and Technology (State University); National Research Nuclear University “MEPhI,”

Author for correspondence.
Email: viktoriya.shipunova@phystech.edu
Russian Federation, Moscow; Dolgoprudnyi, Moscow oblast; Moscow

U. F. Aghayeva

Department of Biological Sciences, Howard Hughes Medical Institute

Email: viktoriya.shipunova@phystech.edu
United States, New York, 10027

O. A. Stremovskiy

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: viktoriya.shipunova@phystech.edu
Russian Federation, Moscow

M. P. Nikitin

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry; Moscow Institute of Physics and Technology (State University)

Email: viktoriya.shipunova@phystech.edu
Russian Federation, Moscow; Dolgoprudnyi, Moscow oblast

I. A. Novikov

Research Institute of Eye Diseases

Email: viktoriya.shipunova@phystech.edu
Russian Federation, Moscow

A. A. Schulga

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: viktoriya.shipunova@phystech.edu
Russian Federation, Moscow

S. M. Deyev

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry; National Research Nuclear University “MEPhI,”

Email: viktoriya.shipunova@phystech.edu
Russian Federation, Moscow; Moscow

R. V. Petrov

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: viktoriya.shipunova@phystech.edu
Russian Federation, Moscow

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