Nanodiamonds as "artificial proteins": Regulation of a cell signalling system using low nanomolar solutions of inorganic nanocrystals

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Publikace nespadá pod Ekonomicko-správní fakultu, ale pod Lékařskou fakultu. Oficiální stránka publikace je na webu muni.cz.
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BÁLEK Lukáš BUCHTOVÁ Marcela BOSÁKOVÁ Michaela VAŘECHA Miroslav TRANTÍRKOVÁ Silvie GUDERNOVÁ Iva VESELÁ Iva HAVLIK Jan NEBURKOVA Jitka TURNER Stuart KRZYSCIK Mateusz Adam ZAKRZEWSKA Malgorzata KLIMASCHEWSKI Lars CLAUS Peter TRANTÍREK Lukáš CIGLER Petr KREJČÍ Pavel

Rok publikování 2018
Druh Článek v odborném periodiku
Časopis / Zdroj Biomaterials
Fakulta / Pracoviště MU

Lékařská fakulta

Citace
www https://www.sciencedirect.com/science/article/pii/S0142961218303739?via%3Dihub
Doi http://dx.doi.org/10.1016/j.biomaterials.2018.05.030
Klíčová slova Nanodiamonds; Cell signalling; FGF; Fibroblast growth factor; Nanotherapeutics
Popis The blocking of specific protein-protein interactions using nanoparticles is an emerging alternative to small molecule-based therapeutic interventions. However, the nanoparticles designed as "artificial proteins" generally require modification of their surface with (bio)organic molecules and/or polymers to ensure their selectivity and specificity of action. Here, we show that nanosized diamond crystals (nanodiamonds, NDs) without any synthetically installed (bio)organic interface enable the specific and efficient targeting of the family of extracellular signalling molecules known as fibroblast growth factors (FGFs). We found that low nanomolar solutions of detonation NDs with positive-potential strongly associate with multiple FGF ligands present at sub-nanomolar concentrations and effectively neutralize the effects of FGF signalling in cells without interfering with other growth factor systems and serum proteins unrelated to FGFs. We identified an evolutionarily conserved FGF recognition motif, 17 amino acids long, that contributes to the selectivity of the ND-FGF interaction. In addition, we inserted this motif into a de novo constructed chimeric protein, which significantly improved its interaction with NDs. We demonstrated that the interaction of NDs, as purely inorganic nanoparticles, with proteins can mitigate pathological FGF signalling and promote the restoration of cartilage growth in a mouse limb explant model. Based on our observations, we foresee that NDs may potentially be applied as nano therapeutics to neutralize disease-related activities of FGFs in vivo. (C) 2018 The Authors. Published by Elsevier Ltd.
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