The Gold(I) Complex with Plant Hormone Kinetin Shows Promising In Vitro Anticancer and PPARγ Properties

0571095 - ÚEB 2024 RIV CH eng J - Journal Article
Trávníček, Z. - Vančo, J. - Belza, J. - Hošek, J. - Dvořák, Z. - Lenobel, René - Popa, I. - Šmejkal, K. - Uhrin, P.
The Gold(I) Complex with Plant Hormone Kinetin Shows Promising In Vitro Anticancer and PPARγ Properties.
International Journal of Molecular Sciences. Roč. 24, č. 3 (2023), č. článku 2293. E-ISSN 1422-0067
Institutional support: RVO:61389030
Keywords : anti-inflammatory * anticancer * apoptosis * cell cycle * gold(I) complex * in vitro * kinetin * ppar * ros
OECD category: Physical chemistry
Impact factor: 5.6, year: 2022
Method of publishing: Open access
https://doi.org/10.3390/ijms24032293

Motivated by the clinical success of gold(I) metallotherapeutic Auranofin in the effective treatment of both inflammatory and cancer diseases, we decided to prepare, characterize, and further study the [Au(kin)(PPh3)] complex (1), where Hkin = kinetin, 6-furfuryladenine, for its in vitro anti-cancer and anti-inflammatory activities. The results revealed that the complex (1) had significant in vitro cytotoxicity against human cancer cell lines (A2780, A2780R, PC-3, 22Rv1, and THP-1), with IC50 ≈ 1–5 μM, which was even significantly better than that for the conventional platinum-based drug Cisplatin while comparable with Auranofin. Although its ability to inhibit transcription factor NF-κB activity did not exceed the comparative drug Auranofin, it has been found that it is able to positively influence peroxisome-proliferator-activated receptor-gamma (PPARγ), and as a consequence of this to have the impact of moderating/reducing inflammation. The cellular effects of the complex (1) in A2780 cancer cells were also investigated by cell cycle analysis, induction of apoptosis, intracellular ROS production, activation of caspases 3/7 and disruption of mitochondrial membrane potential, and shotgun proteomic analysis. Proteomic analysis of R2780 cells treated with complex (1) and starting compounds revealed possible different places of the effect of the studied compounds. Moreover, the time-dependent cellular accumulation of copper was studied by means of the mass spectrometry study with the aim of exploring the possible mechanisms responsible for its biological effects.
Permanent Link: https://hdl.handle.net/11104/0342398