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Basic Methods in Cellular and Molecular Biology

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 JoVE Clinical and Translational Medicine

A Zebrafish Model of Diabetes Mellitus and Metabolic Memory

1Dr. William M. Scholl College of Podiatric Medicine, Rosalind Franklin University of Medicine and Science, 2Chicago Medical School, Rosalind Franklin University of Medicine and Science


JoVE 50232

Metabolic memory is the phenomenon by which diabetic complications persist and progress unimpeded even after euglycemia is achieved pharmaceutically. Here we describe a diabetes mellitus zebrafish model which is unique in that it allows for the examination of the mitotically transmissible epigenetic components of metabolic memory in vivo.

 JoVE Biology

Ex vivo Culture of Drosophila Pupal Testis and Single Male Germ-line Cysts: Dissection, Imaging, and Pharmacological Treatment

1Fachbereich Biologie, Entwicklungsbiologie, Philipps-Universität Marburg, 2Institut für Molekularbiologie und Tumorforschung, Philipps-Universität Marburg


JoVE 51868

This protocol describes the dissection and cultivation of intact testes and germ-line cysts from Drosophila melanogaster pupae. This method allows microscopic observation of spermatogenesis ex vivo. Furthermore, we describe a pharmacological assay of the effect of inhibitors on specific stages of germ-cell development in pupal testes.

 JoVE Behavior

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale

1Center for the Study of Children at Risk, Alpert Medical School, Brown University, 2Women & Infants Hospital of Rhode Island, 3University of Massachusetts, Boston


JoVE 3368

The NICU Network Neurobehavioral Scale (NNNS) was developed as an assessment for the at-risk infant. The purpose of this article is to describe the NNNS, provide video examples of the NNNS procedures and discuss the ways in which the exam has been used.

 JoVE Biology

Generation of Myospheres From hESCs by Epigenetic Reprogramming

1Muscle Development and Regeneration Program, Sanford-Burnham Institute for Medical Research, 2IRCCS Fondazione Santa Lucia


JoVE 51243

Here, we describe a protocol based on epigenetic reprogramming of human embryonic stem cells (hESCs) toward generating a homogeneous population of skeletal muscle progenitors that under permissive culture conditions form three-dimensional clusters of contractile myofibers (myospheres), which recapitulate biological features of human skeletal muscles.

 JoVE Biology

The ChroP Approach Combines ChIP and Mass Spectrometry to Dissect Locus-specific Proteomic Landscapes of Chromatin

1Department of Experimental Oncology, European Institute of Oncology


JoVE 51220

By combining native and crosslinking chromatin immunoprecipitation with high-resolution Mass Spectrometry, ChroP approach enables to dissect the composite proteomic architecture of histone modifications, variants and non-histonic proteins synergizing at functionally distinct chromatin domains.

 JoVE Biology

Selective Capture of 5-hydroxymethylcytosine from Genomic DNA

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


JoVE 4441

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 Neuroscience

Optimized Analysis of DNA Methylation and Gene Expression from Small, Anatomically-defined Areas of the Brain

1Max Planck Institute of Psychiatry


JoVE 3938

A streamlined workflow to study DNA methylation and gene expression changes upon early-life stress is shown. Starting from maternal separation of newborn mice and isolation of discrete brain tissues, we represent a protocol to simultaneously isolate DNA and RNA from brain tissue punches for subsequent bisulfite sequencing and RT-PCR analysis.

 JoVE Biology

Cell Surface Marker Mediated Purification of iPS Cell Intermediates from a Reprogrammable Mouse Model

1Department of Anatomy and Developmental Biology, Monash University, 2Australian Regenerative Medicine Institute, Monash University


JoVE 51728

Mouse embryonic fibroblast can be reprogrammed into induced pluripotent stem cells at low efficiency by the forced expression of transcription factors Oct-4, Sox-2, Klf-4, c-Myc. The rare intermediates of the reprogramming reaction are FACS isolated via labeling with antibodies against cell surface makers Thy-1.2, Ssea-1, and Epcam.

 JoVE Neuroscience

Detection of the Genome and Transcripts of a Persistent DNA Virus in Neuronal Tissues by Fluorescent In situ Hybridization Combined with Immunostaining

1Virus and Centromere Team, Centre de Génétique et Physiologie Moléculaire et Cellulaire, CNRS UMR 5534, 2Université de Lyon 1, 3Laboratoire d'excellence, LabEX DEVweCAN, 4Institut de Virologie Moléculaire et Structurale, CNRS UPR 3296, 5Centre de Recherche en Cancérologie de Lyon, INSERM U1052, CNRS UMR 5286


JoVE 51091

We established a fluorescent in situ hybridization protocol for the detection of a persistent DNA virus genome within tissue sections of animal models. This protocol enables studying infection process by codetection of the viral genome, its RNA products, and viral or cellular proteins within single cells.

 JoVE Biology

Methylated DNA Immunoprecipitation

1Department of Cancer Genetics and Developmental Biology, BC Cancer Research Centre, 2Interdisciplinary Oncology Program, University of British Columbia - UBC, 3These authors contributed equally., 4Department of Pathology and Laboratory Medicine, University of British Columbia - UBC, 5Photography/Video Production, Multi-Media Services, BC Cancer Agency, 6Department of Medical Genetics, Life Sciences Institute,, University of British Columbia - UBC


JoVE 935

This video demonstrates the protocol for methylated DNA immunoprecipitation (MeDIP). MeDIP is a two day procedure that selectively extracts methylated DNA fragments from a genomic DNA sample using antibodies with specificity for 5 -methylcytosine (anti-5 mC).

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