PMID- 25744689 OWN - NLM STAT- MEDLINE DCOM- 20151117 LR - 20181202 IS - 1361-6528 (Electronic) IS - 0957-4484 (Linking) VI - 26 IP - 12 DP - 2015 Mar 27 TI - Effect of HSA coated iron oxide labeling on human umbilical cord derived mesenchymal stem cells. PG - 125103 LID - 10.1088/0957-4484/26/12/125103 [doi] AB - Human umbilical cord derived mesenchymal stem cells (hUC-MSCs) are known for self-renewal and differentiation into cells of various lineages like bone, cartilage and fat. They have been used in biomedical applications to treat degenerative disorders. However, to exploit the therapeutic potential of stem cells, there is a requirement of sensitive non-invasive imaging techniques which will offer the ability to track transplanted cells, bio-distribution, proliferation and differentiation. In this study, we have analyzed the efficacy of human serum albumin coated iron oxide nanoparticles (HSA-IONPs) on the differentiation of hUC-MSCs. The colloidal stability of the HSA-IONPs was tested over a long period of time (>/=20 months) and the optimized concentration of HSA-IONPs for labeling the stem cells was 60 mug ml(-1). Detailed in vitro assays have been performed to ascertain the effect of the nanoparticles (NPs) on stem cells. Lactate dehydrogenase (LDH) assay showed minimum release of LDH depicting the least disruptions in cellular membrane. At the same time, mitochondrial impairment of the cells was also not observed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Flow cytometry analysis revealed lesser generation of reactive oxygen species in HSA-IONPs labeled hUC-MSCs in comparison to bare and commercial IONPs. Transmission electron microscopy showed endocytic engulfment of the NPs by the hUC-MSCs. During the process, the gross morphologies of the actin cytoskeleton were found to be intact as shown by immunofluorescence microscopy. Also, the engulfment of the HSA-IONPs did not show any detrimental effect on the differentiation potential of the stem cells into adipocytes, osteocytes and chondrocytes, thereby confirming that the inherent properties of stem cells were maintained. FAU - Sanganeria, Purva AU - Sanganeria P AD - Department of Biological Sciences, School of Science, NMIMS University, Vile Parle (West), Mumbai 400056, India. FAU - Chandra, Sudeshna AU - Chandra S FAU - Bahadur, Dhirendra AU - Bahadur D FAU - Khanna, Aparna AU - Khanna A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150306 PL - England TA - Nanotechnology JT - Nanotechnology JID - 101241272 RN - 0 (Contrast Media) RN - 0 (Ferric Compounds) RN - 0 (Reactive Oxygen Species) RN - 0 (Serum Albumin) RN - 1K09F3G675 (ferric oxide) SB - IM MH - Cell Differentiation MH - Cell Survival/drug effects MH - Cells, Cultured MH - Contrast Media/adverse effects/pharmacokinetics/*pharmacology MH - Cytoskeleton/drug effects MH - Ferric Compounds/*chemistry MH - Humans MH - Mesenchymal Stem Cells/drug effects/*physiology/ultrastructure MH - Nanoparticles/*chemistry MH - Reactive Oxygen Species MH - Serum Albumin/*chemistry MH - Umbilical Cord/cytology EDAT- 2015/03/07 06:00 MHDA- 2015/11/18 06:00 CRDT- 2015/03/07 06:00 PHST- 2015/03/07 06:00 [entrez] PHST- 2015/03/07 06:00 [pubmed] PHST- 2015/11/18 06:00 [medline] AID - 10.1088/0957-4484/26/12/125103 [doi] PST - ppublish SO - Nanotechnology. 2015 Mar 27;26(12):125103. doi: 10.1088/0957-4484/26/12/125103. Epub 2015 Mar 6.