Molecular interaction of fibrinogen with zeolite nanoparticles

Abstract

Fibrinogen is one of the key proteins that participate in the protein corona composition of many types of nanoparticles (NPs), and its conformational changes are crucial for activation of immune systems. Recently, we demonstrated that the fibrinogen highly contributed in the protein corona composition at the surface of zeolite nanoparticles. Therefore, understanding the interaction of fibrinogen with zeolite nanoparticles in more details could shed light of their safe applications in medicine. Thus, we probed the molecular interactions between fibrinogen and zeolite nanoparticles using both experimental and simulation approaches. The results indicated that fibrinogen has a strong and thermodynamically favorable interaction with zeolite nanoparticles in a non-cooperative manner. Additionally, fibrinogen experienced a substantial conformational change in the presence of zeolite nanoparticles through a concentration-dependent manner. Simulation results showed that both E- and D-domain of fibrinogen are bound to the EMT zeolite NPs via strong electrostatic interactions, and undergo structural changes leading to exposing normally buried sequences. D-domain has more contribution in this interaction and the C-terminus of γ chain (γ377–394), located in D-domain, showed the highest level of exposure compared to other sequences/residues.

Anti‐Platelet Effect Induced by Iron Oxide Nanoparticles: Correlation with Conformational Change in Fibrinogen

“…Thus, this suggests that the cleavage site would be readily available to thrombin and would support our spectrometric data highlighting a conformational change in fibrinogen, rather than its aggregation. This is also supported by literature demonstrating that nanoparticles indeed can affect fibrinogen conformation, [ 45–50 ] including iron oxide nanoparticles. [ 31 ] Accordingly, Zhang et al.…”

“…Thus, this suggests that the cleavage site would be readily available to thrombin and would support our spectrometric data highlighting a conformational change in fibrinogen, rather than its aggregation. This is also supported by literature demonstrating that nanoparticles indeed can affect fibrinogen conformation, [45][46][47][48][49][50] including iron oxide nanoparticles. [31] Accordingly, Zhang et al reported that UV-vis spectroscopy of bovine fibrinogen incubated with 10 nm γ-Fe 2 O 3 indicated a decrease in absorbance intensity in the peaks at 218 and 275 nm when compared to fibrinogen.…”

Towards osteogenic differentiation of human dental pulp stem cells on PCL-PEG-PCL/zeolite nanofibrous scaffolds

“…The surface of zeolite nanoparticles in contact with physiological fluid could be covered by a layer of biomaterials such as calcium and phosphate ions, which could enhance the cell adhesion, collagen formation and apatite crystallization. Therefore, zeolite nanoparticles could be considered as osteoinductive materials [23].…”

Molecular Modeling of Protein Corona Formation and Its Interactions with Nanoparticles and Cell Membranes for Nanomedicine Applications

“…Moya et al simulated multiple HSA molecules that were bound to the iron-oxide nanoparticle surface and calculated the thickness of protein layers on differently sized nanoparticles, in agreement with the experimental results [51]. Derakhshankhah et al's simulations showed the non-cooperative binding between FG and zeolite nanoparticles via hydrogen bonds and electrostatic interactions of D-domain of FG [52]. Xu and Dzubiella calculated the binding free energies of lysozyme that was adsorbed onto the highly charged dendritic polyglycerol sulfate and derived the concept of a coverage-dependent binding affinity in the Langmuir model [53].…”