Title:Biosynthesized Silver Nanoparticles from Cyperus conglomeratus Root
Extract Inhibit Osteogenic Differentiation of Immortalized Mesenchymal
Stromal Cells
Volume: 25
Issue: 10
Author(s): Mohamed A. H. Alshamsi, Kareem A. Mosa*, Amir Ali Khan*, Muath Mousa, Muna A. Ali, Sameh S.M. Soliman and Mohammad H. Semreen
Affiliation:
- Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
- Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah, United Arab Emirates
Keywords:
Silver nanoparticles, green nanotechnology, Cyperus conglomeratus, mesenchymal stromal cells, adipogenic, osteogenic.
Abstract:
Background: Silver nanoparticles (AgNPs) are a focus of huge interest in biological
research, including stem cell research. AgNPs synthesized using Cyperus conglomeratus root extract
have been previously reported but their effects on mesenchymal stromal cells have yet to be
investigated.
Objectives: The aim of this study is to investigate the effects of C. conglomeratus-derived AgNPs
on adipogenesis and osteogenesis of mesenchymal stromal cells.
Methods: AgNPs were synthesized using C. conglomeratus root extract, and the phytochemicals
involved in AgNPs synthesis were analyzed using gas chromatography-mass spectrometry (GCMS).
The cytotoxicity of the AgNPs was tested on telomerase-transformed immortalized human
bone marrow-derived MSCs-hTERT (iMSC3) and human osteosarcoma cell line (MG-63) using
MTT and apoptosis assays. The uptake of AgNPs by both cells was confirmed using inductively
coupled plasma-optical emission spectrometry (ICP-OES). Furthermore, the effect of AgNPs on
iMSC3 adipogenesis and osteogenesis was analyzed using stain quantification and reverse transcription-
quantitative polymerase chain reaction (RT-qPCR).
Results: The phytochemicals predominately identified in both the AgNPs and C. conglomeratus
root extract were carbohydrates. The AgNP concentrations tested using MTT and apoptosis assays
(0.5-64 µg/ml and 1,4 and 32 µg/ml, respectively) showed no significant cytotoxicity on iMSC3
and MG-63. The AgNPs were internalized in a concentration-dependent manner in both cell types.
Additionally, the AgNPs exhibited a significant negative effect on osteogenesis but not on adipogenesis.
Conclusion: C. conglomeratus-derived AgNPs had an impact on the differentiation capacity of
iMSC3. Our results indicated that C. conglomeratus AgNPs and the associated phytochemicals
could exhibit potential medical applications.