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Title: An evidence on G2/M arrest, DNA damage and caspase mediated apoptotic effect of biosynthesized gold nanoparticles on human cervical carcinoma cells (HeLa)

Highlights: • Gold nanoparticles (AuNPs) have been synthesized using Podophyllum hexandrum L. • AuNPs induces the oxidative stress to cell death in human cervical carcinoma cells. • It activates the caspase-cascade to cellular death. • It is actively blocks G2/M phase of cell cycle. - Abstract: Current prospect of nanobiotechnology involves in the greener synthesis of nanostructured materials particularly noble metal nanoparticles for various biomedical applications. In this study, biologically (Podophyllum hexandrum L.) synthesized crystalline gold nanoparticles (AuNPs) with the size range between 5 and 35 nm were screened for its anticancereous potential against human cervical carcinoma cells (HeLa). Stoichiometric proportion of the reaction mixture and conditions were optimized to attain stable nanoparticles with narrow size range. Different high throughput techniques like transmission electron microscope (TEM), X-ray diffraction (XRD) and UV–vis spectroscopy were adopted for the physio-chemical characterization of AuNPs. Additionally, Fourier transform infrared spectroscopy (FTIR) study revealed that the water soluble fractions present in the plant extract solely influences the reduction of AuNPs. Sublimely, synthesized AuNPs exhibits an effective in vitro anticancer activity against HeLa cells via induction of cell cycle arrest and DNA damage. Furthermore, it was evidenced that AuNPs treated cells are undergone apoptosis through the activationmore » of caspase cascade which subsequently leads to mitochondrial dysfunction. Thereby, this study proves that biogenic colloidal AuNPs can be developed as a promising drug candidature for human cervical cancer therapy.« less
Authors:
 [1] ;  [2] ;  [1] ;  [3] ; ; ; ;  [1] ;  [4] ;  [1]
  1. Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli 620024, Tamil Nadu (India)
  2. Department of Biomedical Sciences, Bharathidasan University, Tiruchirappalli 620024 (India)
  3. Central Inter-Disciplinary Research Facility, Mahatma Gandhi Medical College and Research Institute Campus, Pondicherry 607402 (India)
  4. Department of Microbiology, Bharathidasan University, Tiruchirappalli 620024 (India)
Publication Date:
OSTI Identifier:
22345255
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 52; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; APOPTOSIS; CARCINOMAS; DNA DAMAGES; FOURIER TRANSFORM SPECTROMETERS; FOURIER TRANSFORMATION; GOLD; IN VITRO; INFRARED SPECTRA; MITOCHONDRIA; MIXTURES; NANOPARTICLES; NANOSTRUCTURES; OXIDATION; SPECTROSCOPY; STRESSES; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; WATER; X-RAY DIFFRACTION