The Journal of Visualized Experiments (JoVE) is a peer reviewed, PubMed-indexed video journal. Our mission is to increase the productivity of scientific research.

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 JoVE General

Transfecting and Nucleofecting Human Induced Pluripotent Stem Cells


JoVE 3110 10/05/2011

UCR Stem Cell Center, Department of Cell Biology and Neuroscience, University of California Riverside

Despite recent advancements in genetic modification, transfection of human embryonic stem cells (HESCs) remains a capricious process. To our knowledge, systematic and efficient methods to transfect human induced pluripotent stem cells (iPSCs) have not been reported. Here, we describe robust protocols to efficiently transfect and nucleofect human iPSCs.

 JoVE Bioengineering

Development, Expansion, and In vivo Monitoring of Human NK Cells from Human Embryonic Stem Cells (hESCs) and and Induced Pluripotent Stem Cells (iPSCs)


JoVE 50337 4/23/2013

1Department of Medicine (Hematology, Oncology, and Transplant), University of Minnesota, Minneapolis, 2Stem Cell Institute, University of Minnesota, Minneapolis

This protocol describes the development, expansion, and in vivo imaging of NK cells derived from hESCs and iPSCs.

 JoVE General

Fate Mapping of Human Embryonic Stem Cells by Teratoma Formation


JoVE 2036 8/01/2010

Cardiovascular Research Institute, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco

Directed differentiation of hESCs into specific cells has generated much interest in regenerative medicine. We provide a concise, step-by-step protocol for determining the in vivo fate of selected hESCs that provides a valuable tool for characterizing tissue-specific reagents for cell-based therapy.

 JoVE General

Preparation of Mouse Embryonic Fibroblast Cells Suitable for Culturing Human Embryonic and Induced Pluripotent Stem Cells


JoVE 3854 6/21/2012

Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics

The quality of mouse embryonic fibroblasts (MEFs) is dictated by the right strain of mouse such as CF-1. Pluripotency-supportive MEFs and conditioned media (CM) obtained from these should contain optimal concentrations of Activin A, Gremlin and Tgfβ1 needed for the Activin/Nodal and FGF pathways to co-operatively maintain self-renewal and pluripotency.

 JoVE General

Labeling Stem Cells with Fluorescent Dyes for non-invasive Detection with Optical Imaging


JoVE 686 4/02/2008

Contrast Agent Research Group at the Center for Molecular and Functional Imaging, Department of Radiology, University of California San Francisco

This video shows techniques for labeling of human embryonic stem cells and mesenchymal stem cells with fluorescent dyes. This technique can be used for an in vivo tracking of transplanted stem cells with optical imaging and for histopathological correlations with fluorescence microscopy.

 JoVE General

In vitro Labeling of Human Embryonic Stem Cells for Magnetic Resonance Imaging


JoVE 827 8/03/2008

Division of Cardiovascular Medicine, Stanford University

In this video, we are showing how to label human embryonic stem cells (hESC) with manganese chloride (MnCl2) which can enter cells via voltage-gated calcium channels when the cells are biologically active. Additionally, we show the use of MnCl2 as cellular MRI contrast agent to determine the in vitro viability of hESC.

 JoVE General

Rapid Fibroblast Removal from High Density Human Embryonic Stem Cell Cultures


JoVE 3951 10/28/2012

Department of Engineering, University of California, Merced

Despite ongoing efforts to transition cultures to feeder-free conditions, the derivation and culture of human embryonic stem cells (hESC) remain largely dependent on co-cultures with mouse embryonic feeders (MEFs). Here, we show a novel methodology for rapidly removing feeders from hESC cultures prior to experimentation.

 JoVE General

In vitro and in vivo Bioluminescence Reporter Gene Imaging of Human Embryonic Stem Cells


JoVE 740 5/02/2008

Departments of Radiology and Medicine (Cardiology), Stanford University School of Medicine

With the growing interest in stem cell therapies, molecular imaging techniques are ideal for monitoring stem cell behavior after transplantation. Luciferase reporter genes have enabled non-invasive, repetitive assessment of cell survival, location, and proliferation in vivo. This video will demonstrate how to track hESC proliferation in a living mouse.

 JoVE Clinical and Translational Medicine

Teratoma Generation in the Testis Capsule


JoVE 3177 11/07/2011

1Department of Chemical Physiology, Scripps Research Institute, 2Department of Chemical Physiology, Scripps Research Institute, 3Department of Reproductive Medicine, University of California

Human pluripotent stem cells (hPSCs) have the potential to treat a myriad of different diseases. The utility of these cells lies in the fact that they can differentiate into any cell type in the body. Here we describe the teratoma assay, which is used to demonstrate the pluripotence of hPSCs.

 JoVE General

Rapid and Efficient Generation of Neurons from Human Pluripotent Stem Cells in a Multititre Plate Format


JoVE 4335 3/05/2013

1Max Planck Institute for Molecular Biomedicine, 2Medical Faculty, University of Münster

Protocols for neuronal differentiation of pluripotent human stem cells (hPSCs) are often time-consuming and require substantial cell culture skills. Here, we have adapted a small molecule-based differentiation procedure to a multititre plate format, allowing simple, rapid, and efficient generation of human neurons in a controlled manner.

 JoVE Neuroscience

The Specification of Telencephalic Glutamatergic Neurons from Human Pluripotent Stem Cells


JoVE 50321 4/14/2013

1Department of Neuroscience, The University of Connecticut Health Center, 2Department of Genetics and Developmental Biology, The University of Connecticut Health Center, 3Stem Cell Institute, The University of Connecticut Health Center

This procedure yields telencephalic neurons by going through checkpoints which are similar to those observed during human development. The cells are allowed to spontaneously differentiate, are exposed to factors which push them towards the neural lineage, are isolated, and are plated onto coverslips to allow for terminal differentiation and maturation.

 JoVE General

Labeling hESCs and hMSCs with Iron Oxide Nanoparticles for Non-Invasive in vivo Tracking with MR Imaging


JoVE 685 3/31/2008

Contrast Agent Research Group at the Center for Molecular and Functional Imaging, Department of Radiology, University of California San Francisco

For the evaluation of new stem cell therapies it is important to non-invasively track the injected cells in vivo. This video will show you how to label human mesenchymal and embryonic stem cells with iron oxide based contrast agents in vivo for subsequent MR imaging in vivo.

 JoVE General

Xenotransplantation of Human Stem Cells into the Chicken Embryo


JoVE 2071 7/11/2010

1Department of Physiology, University of Oslo, 2Norwegian Center for Stem Cell Research, University of Oslo

In this paper we present a method for transplanting human stem cells into various regions of the central nervous system of the chicken embryo. This provides an in vivo model for assessing the proliferation and differentiation of various types of human stem cells in embryonic tissue environments.

 JoVE General

Chromosomal Spread Preparation of Human Embryonic Stem Cells for Karyotyping


JoVE 1512 9/04/2009

Institute of Biomedical Sciences, Federal University of Rio De Janeiro-UFRJ

Karyotyping is a simple and useful technique widely used for detecting genetic alterations. Here we describe a step by step protocol for chromosome spread preparation of human embryonic stem cells for monitoring the chromosomal status of these cells maintained in culture.

 JoVE Bioengineering

Alginate Microcapsule as a 3D Platform for Propagation and Differentiation of Human Embryonic Stem Cells (hESC) to Different Lineages


JoVE 3608 3/09/2012

1Stem Cell Lab, School of Psychiatry, Faculty of Medicine, The University of New South Wales, 2Siriraj Center of Excellence for Stem cell Research, Faculty of Medicine Siriraj Hospital, Mahidol University, 3Neuropsychiatric Institute, Prince of Wales Hospital

We have optimized a microencapsulation technique as an effective 3D platform for propagation and differentiation of embryonic stem cells to endoderm and dopaminergic (DA) neurons. It also provides an opportunity for immune-isolation of cells from the host during transplantation. This platform can be adapted for other cell types.

 JoVE General

Generation of Human Induced Pluripotent Stem Cells from Peripheral Blood Using the STEMCCA Lentiviral Vector


JoVE 4327 10/31/2012

1Center for Regenerative Medicine (CReM), Boston University School of Medicine, 2Department of Hematology, Children's Hospital of Philadelphia, 3Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia

Here we show a simple and effective protocol for the generation of human iPSCs from 3-4 ml of peripheral blood using a single lentiviral reprogramming vector. Reprogramming of readily available blood cells promises to accelerate the utilization of iPSC technology by making it accessible to a broader research community.

 JoVE General

Selecting and Isolating Colonies of Human Induced Pluripotent Stem Cells Reprogrammed from Adult Fibroblasts


JoVE 3416 2/20/2012

1Department of Molecular Carcinogenesis and Center for Cancer Epigenetics, University of Texas M.D. Anderson Cancer Center, 2Department of Cell Biology, Poznan University of Medical Sciences, 3Department of Molecular Biology, The Scripps Research Institute

We present a protocol for efficient reprogramming of human somatic cells into human induced pluripotent stem cells (hiPSC) using retroviral vectors encoding Oct3/4, Sox2, Klf4 and c-myc (OSKM) and identification of correctly reprogrammed hiPSC by live staining with Tra-1-81 antibody.

 JoVE General

Endothelial Cell Co-culture Mediates Maturation of Human Embryonic Stem Cell to Pancreatic Insulin Producing Cells in a Directed Differentiation Approach


JoVE 3759 3/27/2012

1Department of Bioengineering, University of Pittsburgh, 2Department of Chemical Engineering, University of Pittsburgh

The current study describes a directed differentiation approach in inducing pancreatic differentiation of human embryonic stem cells. Of great significance is the finding that endothelial cell co-culture mediates maturation of human embryonic stem cell derived pancreatic progenitors into insulin expressing cells.

 JoVE General

Analysis of Pluripotent Stem Cells by using Cryosections of Embryoid Bodies


JoVE 2344 12/08/2010

Laboratório Nacional de Céulas-Tronco Embrionárias (LaNCE), Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro (UFRJ), Brazil

Pluripotent stem cells growing in suspension differentiate into embryoid bodies (EBs). Here we demonstrate how to obtain high quality EB cryosections useful for studying cellular and molecular aspects of embryogenesis, while preserving their organization as aggregates.

 JoVE General

Reprogramming Human Somatic Cells into Induced Pluripotent Stem Cells (iPSCs) Using Retroviral Vector with GFP


JoVE 3804 4/03/2012

Yale Stem Cell Center, Department of Genetics, Yale School of Medicine

A method to generate human induced pluripotent stem cells (iPSCs) via retrovirus-mediated ectopic expression of OCT4, SOX2, KLF4 and MYC is described. A practical way to identify human iPSC colonies based on GFP expression is also discussed.

 JoVE Neuroscience

Efficient Derivation of Human Neuronal Progenitors and Neurons from Pluripotent Human Embryonic Stem Cells with Small Molecule Induction


JoVE 3273 10/28/2011

1San Diego Regenerative Medicine Institute, 2Xcelthera, 3Department of Neurosurgery, Harvard Medical School, 4Division of SCI Research, VA Boston Healthcare System, 5Program in Stem Cell & Regenerative Biology, Sanford-Burnham Medical Research Institute, 6La Jolla IVF

We have established a protocol for induction of neuroblasts direct from pluripotent human embryonic stem cells maintained under defined conditions with small molecules, which enables derivation of a large supply of human neuronal progenitors and neuronal cell types in the developing CNS for neural repair.

 JoVE General

Efficient Derivation of Human Cardiac Precursors and Cardiomyocytes from Pluripotent Human Embryonic Stem Cells with Small Molecule Induction


JoVE 3274 11/03/2011

1San Diego Regenerative Medicine Institute, 2Xcelthera, 3Department of Neurosurgery, Harvard Medical School, 4Division of SCI Research, VA Boston Healthcare System, 5Program in Stem Cell & Regenerative Biology, Sanford-Burnham Medical Research Institute, 6La Jolla IVF

We have established a protocol for induction of cardioblasts direct from pluripotent human embryonic stem cells maintained under defined conditions with small molecules, which enables derivation of a large supply of human cardiac progenitors and functional cardiomyocytes for cardiovascular repair.

 JoVE Clinical and Translational Medicine

Labeling Stem Cells with Ferumoxytol, an FDA-Approved Iron Oxide Nanoparticle


JoVE 3482 11/04/2011

1Department of Radiology, Molecular Imaging Program at Stanford (MIPS), 2Stanford School of Medicine, Stanford University

We describe a technique for labeling and tracking stem cells with FDA-approved, superparamagnetic iron oxide (SPIO), ferumoxytol (Feraheme). This cellular imaging technique that utilizes magnetic resonance (MR) imaging for visualization, is readily accessible for long-term monitoring and diagnosis of successful or unsuccessful stem cell engraftments in patients.

 JoVE General

Generation of Induced Pluripotent Stem Cells by Reprogramming Human Fibroblasts with the Stemgent Human TF Lentivirus Set


JoVE 1553 12/08/2009

Research and Development, Stemgent

We demonstrate the protocol for the generation of induced pluripotent stem cells from human somatic cells using lentivirus-mediated delivery of the human factors Oct4, Sox2, Nanog, and Lin28. Pluripotency was confirmed by morphology and the presence of embryonic stem (ES) cell-specific markers.

 JoVE General

Derivation of Human Embryonic Stem Cells by Immunosurgery


JoVE 574 12/13/2007

Department of Molecular and Cell Biology, Harvard

The ability of human embryonic stem cells to self-renew and differentiate into all cell types of the body suggests that they hold great promise for both medical applications and as a research tool for addressing fundamental questions in development and disease. Here, we provide a concise, step-by-step protocol for the derivation of human embryonic stem cells from embryos by immunosurgical isolation of the inner cell mass.

 JoVE General

Naïve Adult Stem Cells Isolation from Primary Human Fibroblast Cultures


JoVE 50185 5/03/2013

1Department of Dermatology and Institute for Medical Engineering, Technische Universität München, 2Department of Dermatology and Allergology, Technische Universität München

We report a method to isolate naïve multipotent skin-derived precursor (SKP) cells from primary human fibroblast cultures. We show that these SKPs derived from fibroblast cultures share similar stem cell properties to the ones derived directly from human skin biopsies. These cells express the neural crest marker, nestin, in addition to the multipotent markers such as OCT4 and Nanog.

 JoVE Neuroscience

Surgical Transplantation of Mouse Neural Stem Cells into the Spinal Cords of Mice Infected with Neurotropic Mouse Hepatitis Virus


JoVE 2834 7/10/2011

1Department of Molecular Biology and Biochemistry, University of California, Irvine, 2Sue and Bill Gross Stem Cell Center, University of California, Irvine, 3Institute for Immunology, University of California, Irvine

The transplantation of mouse neural stem cells (NSCs) into the spinal cords of mice with established demyelination is detailed. The preparation of NSCs, the laminectomy of thoracic vertebra 9 (T9), and transplantation of NSCs is outlined along with the pre- and post-operative care of the mice.

 JoVE Neuroscience

Progenitor-derived Oligodendrocyte Culture System from Human Fetal Brain


JoVE 4274 12/20/2012

1Laboratory of Molecular Medicine and Neuroscience, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 2Laboratory of Neurophysiology, National Institute of Neurological Disorders and Stroke, National Institutes of Health

Primary, human fetal brain-derived, multipotential progenitor cells proliferate in vitro while maintaining the capacity to differentiate into neurons and astrocytes. This work shows that neural progenitors can be induced to differentiate through stages of the oligodendrocytic lineage by conditioning with select growth factors.

 JoVE Bioengineering

Preparation of 3D Fibrin Scaffolds for Stem Cell Culture Applications


JoVE 3641 3/02/2012

1Department of Biology, University of Victoria, 2Department of Mechanical Engineering, Division of Medical Sciences, University of Victoria

This work details the preparation of 3D fibrin scaffolds for culturing and differentiating plutipotent stem cells. Such scaffolds can be used to screen the effects of various biological compounds on stem cell behavior as well as modified to contain drug delivery systems.

 JoVE General

Single Cell Transcriptional Profiling of Adult Mouse Cardiomyocytes


JoVE 3302 12/28/2011

1Buck Institute for Research on Aging, 2Department of Physiology & Biophysics, University of Washington

Single cell expression profiling allows the detailed gene expression analysis of individual cells. We describe methods for the isolation of cardiomyocytes, and preparing the resulting lysates for either whole transcriptome microarray or qPCR of specific targets.

 JoVE General

Use of LysoTracker to Detect Programmed Cell Death in Embryos and Differentiating Embryonic Stem Cells


JoVE 4254 10/11/2012

Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, University of Southern California

We present a simple protocol to visualize regions of programmed cell death (PCD) in mouse embryos and differentiating embryonic stem (ES) cell cultures using a highly soluble dye called LysoTracker.

 JoVE General

Selective Capture of 5-hydroxymethylcytosine from Genomic DNA


JoVE 4441 10/05/2012

1Department of Human Genetics, Emory University School of Medicine, 2Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago

Described is a two-step labeling process using β-glucosyltransferase (β-GT) to transfer an azide-glucose to 5-hmC, followed by click chemistry to transfer a biotin linker for easy and density-independent enrichment. This efficient and specific labeling method enables enrichment of 5-hmC with extremely low background and high-throughput epigenomic mapping via next-generation sequencing.

 JoVE General

Adult and Embryonic Skeletal Muscle Microexplant Culture and Isolation of Skeletal Muscle Stem Cells


JoVE 2051 9/21/2010

School of Biosciences, University of Birmingham

The micro-dissected explants technique is a robust and reliable method for isolating proliferative skeletal muscle cells from juvenile, adult or embryonic muscles as a source of skeletal muscle stem cells. Uniquely, these cells have been clonally derived to produce skeletal muscle stem cell lines used for in vivo transplantation.

 JoVE General

Engineering Cell-permeable Protein


JoVE 1627 12/28/2009

Stem Cell Engineering Group, Institute of Reconstructive Neurobiology, University of Bonn - Life & Brain Center and Hertie Foundation

Protein transduction enables the direct delivery of biologically active proteins into cells. In contrast to conventional methods such as DNA transfection or viral transduction this non-invasive paradigm allows highly efficient cellular manipulation in a titratable manner circumventing cellular toxicity and the risk of oncogenic transformation by permanent genetic modification.

 JoVE Clinical and Translational Medicine

Patient Derived Cell Culture and Isolation of CD133+ Putative Cancer Stem Cells from Melanoma


JoVE 50200 3/13/2013

1Institute of Pathology, Laboratory of Molecular Tumor Pathology, Charité - Universitätsmedizin Berlin, 2Institute for Chemistry and Biochemistry, Free University Berlin, 3Laboratory for Functional Genomics Charité (LFGC), Charité - Universitätsmedizin Berlin, 4Comprehensive Cancer Center Charité, Charité - Universitätsmedizin Berlin

This article describes the preparation of freshly obtained melanoma tissue into primary cell cultures, and how to remove contaminations of erythrocytes and fibroblasts from the tumor cells. Finally, we describe how CD133+ putative melanoma stem cells are sorted from the CD133- bulk using Magnetic Activated Cell Sorting (MACS).

 JoVE General

From MEFs to Matrigel 2: Splitting hESCs from MEFs onto Matrigel


JoVE 831 6/09/2008

David Geffen School of Medicine, University of California, Los Angeles

This video demonstrates how to maintain the growth of human embryonic stem cells (hESCs) in feeder cell-free conditions and how to continuously passage hESCs in feeder cell-free conditions. Confirmation of hESC pluripotency grown in feeder cell-free conditions by immunofluorescence microscopy is also demonstrated. Part 2 of 3.

 JoVE General

From MEFs to Matrigel 3: Passaging hESCs from Matrigel onto Matrigel


JoVE 832 6/10/2008

David Geffen School of Medicine, University of California, Los Angeles

This video demonstrates how to maintain the growth of human embryonic stem cells (hESCs) in feeder cell-free conditions and how to continuously passage hESCs in feeder cell-free conditions. Confirmation of hESC pluripotency grown in feeder cell-free conditions by immunofluorescence microscopy is also demonstrated. Part 3 of 3.

 JoVE Neuroscience

Isolating Nasal Olfactory Stem Cells from Rodents or Humans


JoVE 2762 8/22/2011

1NICN, Aix Marseille University, 2LNPM, Aix Marseille University, 3ENT Department, Aix Marseille University, 4Gene expression Laboratory, The Salk Institute for Biological Studies, 5Laboratory of Speech and Language, Aix Marseille University, 6Centre d'Investigations Cliniques en Biothérapie, Aix Marseille University

We describe here a method for biopsying olfactory mucosa from rat and human nasal cavities. These biopsies can be used for either identifying molecular anomalies in brain diseases or isolating multipotent adult stem cells that can be utilized for cell transplantation in animal models of brain trauma/disease.

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