02299nas a2200265   4500008004100000022001400041245010800055210006900163260007600232300001200308490000700320520135100327653001501678653002001693653001501713653002301728653002201751100001801773700001701791700002701808700001901835700003001854700002201884856012701906       2011                        eng d  a0260-437X00aBiocompatible gellan gum-reduced gold nanoparticles: cellular uptake and subacute oral toxicity studies0 aBiocompatible gellan gumreduced gold nanoparticles cellular upta  aCOMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USAbWILEY-BLACKWELLcJUL  a411-4200 v313 a<p>Currently gold nanoparticles are being explored for drug delivery and other biomedical applications; therefore it is necessary to study the fate of such nanoparticles inside the body. The objective of the present study was to investigate the cellular uptake and toxicity of the gold nanoparticles synthesized using a microbial polysaccharide, gellan gum, as a capping and reducing agent. The cellular uptake of gold nanoparticles was studied on mouse embryonic fibroblast cells, NIH3T3 and human glioma cell line, LN-229. The cellular uptake study indicated that the gellan gum-reduced gold nanoparticles were located in cancer cells (LN-229) while no uptake was observed in normal mouse embryonic fibroblast cells (NIH3T3). The toxicity of the gold nanoparticles was evaluated by carrying out subacute 28 day oral toxicity studies in rats. Subacute administration of gum-reduced gold nanoparticles to the rats did not show any hematological or biochemical abnormalities. The weight and normal architecture of various organs did not change compared with control. The current findings, while establishing the specific uptake of nanoparticles into cancerous cells, also demonstrates that the gellan gum-reduced gold nanoparticles are devoid of toxicity in animals following oral administration. Copyright (c) 2010 John Wiley &amp; Sons, Ltd.</p>10acell lines10acellular uptake10aGellan gum10agold nanoparticles10asubacute toxicity1 aDhar, Sheetal1 aMali, Vishal1 aBodhankar, Subhash, L.1 aShiras, Anjali1 aPrasad, Bhagavatula L. V.1 aPokharkar, Varsha  uhttps://library.ncl.res.in/content/biocompatible-gellan-gum-reduced-gold-nanoparticles-cellular-uptake-and-subacute-oral-002002nas a2200253   4500008004100000022001400041245013400055210006900189260007300258300001200331490000700343520106300350653001401413653002501427653001901452653001701471653002301488653002301511100002301534700002001557700001901577700003001596856012201626       2014                        eng d  a0928-493100aIn situ synthesized BSA capped gold nanoparticles: effective carrier of anticancer drug methotrexate to MCF-7 breast cancer cells0 aIn situ synthesized BSA capped gold nanoparticles effective carr  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN  a158-1670 v343 a<p>The proficiency of MTX loaded BSA capped gold nanoparticles (Au-BSA-MTX) in inhibiting the proliferation of breast cancer cells MCF-7 as compared to the free drug Methotrexate (MTX) is demonstrated based on MTT and Ki-67 proliferation assays. In addition, DNA ladder gel electrophoresis studies, flow cytometry and TUNEL assay confirmed the induction of apoptosis by MTX and Au-BSA-MTX in MCF-7 cells. Notably, Au-BSA-MTX: was found to have higher cytotoxicity on MCF-7 cells compared with an equivalent dose of free MTX. The enhanced activity is attributed to the preferential uptake of Au-BSA-MTX particles by MCF-7 cells due to the presence of BSA that acts as a source of nutrient and energy to the rapidly proliferating MCF-7 cells. Moreover, the targeting ability of the drug MTX to the over expressed folate receptors on MCF-7 cells also contributes to the enhanced uptake and activity. Taken together, these results unveil that Au-BSA-MTX could be more effective than free drug for cancer treatment. (C) 2013 Elsevier B.V. All rights reserved.</p>10aApoptosis10aBovine serum albumin10aCancer therapy10aCytotoxicity10aDual active agents10agold nanoparticles1 aMurawala, Priyanka1 aTirmale, Amruta1 aShiras, Anjali1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/situ-synthesized-bsa-capped-gold-nanoparticles-effective-carrier-anticancer-drug-0