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

  • Ali A. Alshatwi
  • Jegan Athinarayanan
  • Periasamy Vaiyapuri Subbarayan
Engineering and Nano-engineering Approaches for Medical Devices
Part of the following topical collections:
  1. Engineering and Nano-engineering Approaches for Medical Devices


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


Catechin CoQ10 Cervical Cancer Cell Malignant Mesothelioma Epigallocatechin 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We gratefully acknowledge the financial support of the Deanship of Scientific Research, King Saud University, Saudi Arabia (Project No.: RGP-VPP-276).


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Ali A. Alshatwi
    • 1
  • Jegan Athinarayanan
    • 1
  • Periasamy Vaiyapuri Subbarayan
    • 1
  1. 1.Nanobiotechnology and Molecular Biology Research Laboratory, Department of Food Science and Nutrition, College of Food Science and AgricultureKing Saud UniversityRiyadhSaudi Arabia

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