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LDL dinitrosyl iron complex: A new transferrin‐independent route for iron delivery in hepatocytes
Author(s) -
Lewandowska Hanna,
MęczyńskaWielgosz Sylwia,
Sikorska Katarzyna,
Sadło Jarosław,
Dudek Jakub,
Kruszewski Marcin
Publication year - 2018
Publication title -
biofactors
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.204
H-Index - 94
eISSN - 1872-8081
pISSN - 0951-6433
DOI - 10.1002/biof.1412
Subject(s) - transferrin , chemistry , calcein , lipoprotein , low density lipoprotein , ferrous , biochemistry , biophysics , cholesterol , biology , organic chemistry , membrane
Abstract In view of the interrelations between NO, Fe, and LDL in the cardiovascular system it appears interesting to find out, if the lipoprotein particles undergo the process of iron‐nitrosylation, commonly observed for other proteins and what is the biological fate of iron‐nitrosylated LDL particles. Iron‐nitrosylated LDL preparation containing Fe(NO) 2 motif (DNICLDL) was obtained and characterized for the first time. In order to test its interactions with potential target cells, DNICLDL was administered to the hepatoma HepG2 cells. The effects were referred to those induced by native LDL (nLDL) and oxidized LDL (oxLDL) particles. DNICLDL administration considerably increased total iron content in the studied cell line, but did not influence the level of calcein‐chelatable ions. DNICLDL was found to be low toxic to cells. The study suggests that DNICLDL might be a potential transducer of iron. © 2017 BioFactors, 44(2):192–201, 2018