Green synthesis of platinum nanoparticles that induce cell death and G2/M-phase cell cycle arrest in human cervical cancer cells

Platinum-based chemotherapeutic drugs, including cisplatin, carboplatin, and oxaliplatin, have been used to manage cancer in spite of dose-dependent side effects, including nephrotoxicity, neurotoxicity and ototoxicity. These disadvantages have prompted the development of new strategies for cancer t...

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Veröffentlicht in:Journal of materials science. Materials in medicine 2015-01, Vol.26 (1), p.5330-9, Article 7
Hauptverfasser: Alshatwi, Ali A., Athinarayanan, Jegan, Vaiyapuri Subbarayan, Periasamy
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creator Alshatwi, Ali A.
Athinarayanan, Jegan
Vaiyapuri Subbarayan, Periasamy
description Platinum-based chemotherapeutic drugs, including cisplatin, carboplatin, and oxaliplatin, have been used to manage cancer in spite of dose-dependent side effects, including nephrotoxicity, neurotoxicity and ototoxicity. These disadvantages have prompted the development of new strategies for cancer therapy that utilize functionalized nanoparticles as nanomedicines. In the present investigation, we have synthesized platinum nanoparticles using tea polyphenol (TPP) as both a reducing and surface modifying agent. The crystalline nature and morphology of the prepared TPP-functionalized platinum nanoparticles (TPP@Pt) were analyzed using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD results revealed that the TPP@Pt had a crystalline nature with a face-centered cubic structure. TEM imaging suggested that the TTP@Pt are flower shaped with a well-dispersed 30–60 nm-sized TPP@Pt formation. Cervical cancer cells (SiHa) were then treated with different concentrations of TPP@Pt. The effects of TPP@Pt on cell viability, nuclear morphology and cell cycle distribution were investigated. A cell viability assay revealed that the proliferation of SiHa cells was inhibited by TPP@Pt. Propidium iodide nuclear staining indicated that TPP@Pt induced nuclear fragmentation and chromatin condensation. Treatment with TPP@Pt significantly increased the percentage of cells in the G2/M phase, which indicates induced cell cycle arrest in the G2/M phase and an increased number of cells in the subG0 cell death phase. These findings highlight a potential use of TPP@Pt in cervical cancer treatment. Graphical Abstract
doi_str_mv 10.1007/s10856-014-5330-1
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These disadvantages have prompted the development of new strategies for cancer therapy that utilize functionalized nanoparticles as nanomedicines. In the present investigation, we have synthesized platinum nanoparticles using tea polyphenol (TPP) as both a reducing and surface modifying agent. The crystalline nature and morphology of the prepared TPP-functionalized platinum nanoparticles (TPP@Pt) were analyzed using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD results revealed that the TPP@Pt had a crystalline nature with a face-centered cubic structure. TEM imaging suggested that the TTP@Pt are flower shaped with a well-dispersed 30–60 nm-sized TPP@Pt formation. Cervical cancer cells (SiHa) were then treated with different concentrations of TPP@Pt. The effects of TPP@Pt on cell viability, nuclear morphology and cell cycle distribution were investigated. A cell viability assay revealed that the proliferation of SiHa cells was inhibited by TPP@Pt. Propidium iodide nuclear staining indicated that TPP@Pt induced nuclear fragmentation and chromatin condensation. Treatment with TPP@Pt significantly increased the percentage of cells in the G2/M phase, which indicates induced cell cycle arrest in the G2/M phase and an increased number of cells in the subG0 cell death phase. These findings highlight a potential use of TPP@Pt in cervical cancer treatment. 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Materials in medicine</title><addtitle>J Mater Sci: Mater Med</addtitle><addtitle>J Mater Sci Mater Med</addtitle><description>Platinum-based chemotherapeutic drugs, including cisplatin, carboplatin, and oxaliplatin, have been used to manage cancer in spite of dose-dependent side effects, including nephrotoxicity, neurotoxicity and ototoxicity. These disadvantages have prompted the development of new strategies for cancer therapy that utilize functionalized nanoparticles as nanomedicines. In the present investigation, we have synthesized platinum nanoparticles using tea polyphenol (TPP) as both a reducing and surface modifying agent. The crystalline nature and morphology of the prepared TPP-functionalized platinum nanoparticles (TPP@Pt) were analyzed using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD results revealed that the TPP@Pt had a crystalline nature with a face-centered cubic structure. TEM imaging suggested that the TTP@Pt are flower shaped with a well-dispersed 30–60 nm-sized TPP@Pt formation. Cervical cancer cells (SiHa) were then treated with different concentrations of TPP@Pt. The effects of TPP@Pt on cell viability, nuclear morphology and cell cycle distribution were investigated. A cell viability assay revealed that the proliferation of SiHa cells was inhibited by TPP@Pt. Propidium iodide nuclear staining indicated that TPP@Pt induced nuclear fragmentation and chromatin condensation. Treatment with TPP@Pt significantly increased the percentage of cells in the G2/M phase, which indicates induced cell cycle arrest in the G2/M phase and an increased number of cells in the subG0 cell death phase. These findings highlight a potential use of TPP@Pt in cervical cancer treatment. 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subjects Antineoplastic Agents - chemistry
Antineoplastic Agents - pharmacology
Apoptosis
Apoptosis - drug effects
Biomaterials
Biomedical engineering
Biomedical Engineering and Bioengineering
Biomedical materials
Cancer
Cell cycle
Cell death
Cell Death - drug effects
Cell Division - drug effects
Cell Line, Tumor
Ceramics
Cervical cancer
Chemistry and Materials Science
Chemotherapy
Composites
Crystal structure
Engineering and Nano-engineering Approaches for Medical Devices
Female
G2 Phase - drug effects
Glass
Humans
Materials Science
Metal Nanoparticles - chemistry
Microscopy, Electron, Transmission
Microscopy, Fluorescence
Morphology
Nanoparticles
Nanotechnology
Natural Materials
Platinum
Platinum - chemistry
Polymer Sciences
Regenerative Medicine/Tissue Engineering
Surfaces and Interfaces
Thin Films
Transmission electron microscopy
Uterine Cervical Neoplasms - pathology
Viability
X-Ray Diffraction
title Green synthesis of platinum nanoparticles that induce cell death and G2/M-phase cell cycle arrest in human cervical cancer cells
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