established Protocols

Category: Molecular Model Organisms: Mouse Animal Protocols: Mouse Genotyping Protocols

We have established a high-throughput protocol for mouse genotyping using two robotics workstations: a liquid-handling robot to assemble PCR and a ... - [Read CAT.INIST.FR]

Category: Stem Cell Protocols: Stem Cell Culture Protocols

Culture conditions have been established for a second blastocyst-derived cell line, trophoblast stem (TS) cells, in addition to embryonic stem (ES) cells. This protocol describes a method for culturing TS cell lines. These cells can then be used to study trophoblast differentiation and placental function. - [Read Culturing Trophoblast Stem (TS) Cell Lines Protocol]

Category: Transfection Protocols

Protocol should be viewed as a starting point for systematic optimization of transfection mediated by lipofecting agents. Once a positive signal has been obtained from a transfected plasmid carrying a standard reporter gene, optimal conditions for transfection can be established by systematic variation of parameters such as the initial cell density, the amount and purity of DNA, the media and serum, and the time of exposure of the cells to the cationic-lipid-DNA complex. - [Read DNA Transfection Mediated by Lipofection Protocol]

Category: Immunology: T Cell Protocols

Protocol for the Stimulation of human peripheral blood mononuclear cells with anti-human CD3 monoclonal antibody; MTT assay for detection of cellular proliferation. Human PBMCs can be activated in vitro by soluble anti-human CD3 antibodies. Performed titration studies with these antibodies and established the following protocol for stimulation of PBMC. - [Read Human T Cell Activation Protocol]

Category: Pharmacology and Toxicology Protocols: Cytotoxicity Protocols: Liver Toxicity Assays Protocols

The results of cytotoxicity tests in primary cultures of rat hepatocytes and in MDBK and McCoy cells can be used to predict the in vivo 4-wk maximum tolerated dose in rats and dogs.  A correlation between in vitro cytotoxicity, as measured in this system, and LD50 values in rats and mice has also been established. - [Read In Vitro Prediction of the Maximum Tolerated Dose Protocol]

Category: Microscopy Protocols: In Vivo Imaging Protocols

Positron emission tomography (PET) is a established quantitative and noninvasive imaging modality. With the PET reporter gene (PRG)/PET reporter probe (PRP) system, based on a mutant form of herpes simplex virus 1 thymidine kinase (HSV1-sr39tk), the PET signal is directly proportional to the enzymatic activity of sr39TK9-14. In this protocol, we describe in detail a method for reporter gene labeling of islets and quantitative scanning using a reporter probe. - [Read In Vivo Functional Real-Time Imaging of Transplanted Islets Using Positron Emission Tomography (PET)]

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols: Cell Sorting Protocols

This protocol has been established to maintain the efficient use of the AutoMACS cell sorter during periods of heavy use (e.g., three preparations of splenocytes from 16 spleens per week). Includes: Running the SAFE Clean Program; Clearing Debris. - [Read Maintenance of the AutoMACS Cell Sorter Protocol]

Category: PCR Protocols: cDNA Synthesis Protocols

In MOPAC, the amino-terminal and carboxy-terminal sequences of a peptide are used to design two redundant families of oligonucleotides encoding the aminoand carboxy-terminal sequences of the peptide.  The primers are used either to amplify a segment of cDNA prepared by RT-PCR from a tissue known to express the protein or to amplify a segment of DNA from an established genomic or cDNA library. - [Read Mixed Oligonucleotide-primed Amplification of cDNA MOPAC Protocol]

Category: Stem Cell Protocols: Feeder Cell Preparation Protocols

MEF feeders are prepared weekly to provide a substrate for undifferentiated embryonic stem (ES) cells. Primary MEF cells are thawed, established in culture, treated with mitomycin C to halt their proliferation so they cannot overgrow the ES cultures, and then replated onto dishes convenient for ES cell culture. This protocol can also be used to prepare feeder cells from STO fibroblast cell lines. - [Read Preparation of Mouse Embryonic Fibroblast (MEF) Feeder Plates Protocol]

Category: Transfection Protocols: Calcium Phosphate Transfection Protocols

This protocol describes transfection of plasmid DNA into primary hippocampal neurons using DNA/calcium-phosphate (CaPO4) coprecipitation. The precise pH of the transfection medium and the incubation time of cells with the coprecipitate are critical for reproducible and efficient transfection. Once these parameters are optimized for a given plasmid, the method is easily adapted for transfection of other established cell lines. - [Read Transfection of Hippocampal Neurons with Plasmid DNA Using Calcium Phosphate Coprecipitation]