Plastic response of macrophages to metal ions and nanoparticles in time mimicking metal implant body environment

Varování

Publikace nespadá pod Pedagogickou fakultu, ale pod Lékařskou fakultu. Oficiální stránka publikace je na webu muni.cz.
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NAVRÁTILOVÁ Polina EMMER Jan TOMÁŠ Tomáš RYBA Luděk BURDA Jan LOJA Tomáš VEVERKOVÁ Jana VÁLKOVÁ Lucie PÁVKOVÁ GOLDBERGOVÁ Monika

Rok publikování 2024
Druh Článek v odborném periodiku
Časopis / Zdroj Environmental Science and Pollution Research
Fakulta / Pracoviště MU

Lékařská fakulta

Citace
www https://link.springer.com/article/10.1007/s11356-023-31430-7
Doi http://dx.doi.org/10.1007/s11356-023-31430-7
Klíčová slova Metal toxicity; Implant debris; Nanoparticles; Metal ions; Macrophage; Polarization
Popis The paradigm of using metal biomaterials could be viewed from two sides — treatment of wide spectrum of degenerative diseases, and debris release from materials. After implant insertion, metal nanoparticles (NPs) and ions are released not only upon the first contact with cells/tissues, but in continual manner, which is immediately recognized by immune cells. In this work, the effects of metal nanoparticles (TiO2, Ni) and ions (Ni2+, Co2+, Cr3+, Mo6+) on primary human M0 macrophages from the blood samples of osteoarthritic patients undergoing total arthroplasty were studied in order to monitor immunomodulatory effects on the cells in a real-time format. The highest NiNPs concentration of 10 µg/ml had no effect on any of macrophage parameters, while the Ni2+ ions cytotoxicity limit for the cells is 0.5 mM. The cytotoxic effects of higher Ni2+ concentration revealed mitochondrial network fragmentation leading to mitochondrial dysfunction, accompanied by increased lysosomal activity and changes in pro-apoptotic markers. The suppression of M2 cell formation ability was connected to presence of Ni2+ ions (0.5 mM) and TiO2NPs (10 µg/ml). The immunomodulatory effect of Mo6+ ions, controversially, inhibit the formation of the cells with M1 phenotype and potentiate the thread-like shape M2s with increased chaotic cell movement. To summarize, metal toxicity depends on the debris form. Both, metal ions and nanoparticles affect macrophage size, morphological and functional parameters, but the effect of ions is more complex and likely more harmful, which has potential impact on healing and determines post-implantation reactions.
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