Abbreviations: ACCs - Adrenal Chromaffin Cells, E.Soln - Enzyme Solution, E.DMEM - Enriched Dulbecco's Modified Eagle Medium
<ol>
<li>Preparation<ol>
<li>Add papain to desired quantity of E. Soln (40 units papain/ 1ml E. Soln.).</li>
<li>Activate papain with carbogen for about 15 minutes on ice.&nbsp;Oxygenate Locke's buffer on ice as well. </li>
</ol></li>
<li>Dissection<ol>
<li>Use 8-10 week mouse.</li>
<li>Prior to digestion remove oxygenated Locke's buffer and place on ice.</li>
<li>Refer to video for dissection procedure.</li>
<li>Once excised, place glands in oxygenated Locke's buffer. </li>
</ol></li>
<li>Preparation of Gland<ol>
<li>Remove fat from gland.</li>
<li>Strip cortex from gland. </li>
</ol></li>
<li>Enzymatic Digestion<ol>
<li>Sterile filter oxygenated papain.</li>
<li>Make four pools of oxygenated papain on a petri dish.<ol>
<li>3 pools should be about 100uls.</li>
<li>1 of the pools should be about 400uls.</li>
</ol></li>
<li>Wash medullae through pools<ol>
<li>1st through the 3 100ul pools.</li>
<li>Then through the 400ul pool</li>
<li>Pippette 300ul E.Soln and medulla pieces from 400ul pool into microfuge tube.</li>
<li>Qrap parafilm on microfuge tube and place in 37&deg;C water bath for 20min.</li>
<li>Remember to continue to oxygenate remaining E.Soln containing papain.</li>
<li>After 20 minutes sterile filter more E.Soln.</li>
<li>Replace old E.Soln bathing medullae with newly filtered E.Soln. </li>
</ol></li>
</ol></li>
<li>Triturations<ol>
<li>Aspirate and discard E.Soln.</li>
<li>Wash medullae in 1ml E.DMEM.</li>
<li>Aspirate and discard E.DMEM.</li>
<li>Add 300ul E.DMEM and triturate 20X with 1ml tip.</li>
<li>Cut 200ul tip with sterile razor blade.</li>
<li>Triturate 5-10X with cut 200ul tip.</li>
<li>Discard E.DMEM bathing medullae pieces.&nbsp; Medium will contain debris.</li>
<li>Add 300uls fresh E.DMEM to medullae pieces.</li>
<li>Triturate with 200ul tip 20x</li>
<li>Pippette E.DMEM to microfuge tube withough medullae pieces.&nbsp; Medium will contain free ACCs.</li>
<li>Add 300uls fresh E.DMEM to medullae pieces.</li>
<li>Triturate medullae with a 23.5 gauge syringe needle 20x.</li>
<li>Combine E.DMEM from both triturations.&nbsp; Medullae pieces should not be present and should now have a featherlike appearance. </li>
</ol></li>
<li>Plating<ol>
<li>Microfuge E.DMEM from the last two trituration steps for 2.5 minutes at 3.7g s.</li>
<li>Resuspend pellet in 50uls-200 E.DMEM, depending on subsequent experiments.</li>
<li>Plate 10-30uls on a glass coverslip.</li>
<li>Wait 15 minutes for cells to adhere.</li>
<li>Add 750uls of E.DMEM. &nbsp;</li>
</ol></li>
</ol>

The authors have nothing to disclose.

mouse adrenal chromaffin cell isolation

Adrenal medullary chromaffin cell culture systems are extremely useful for the study of excitation-secretion coupling in an in vitro setting.  This protocol illustrates the method used to dissect the adrenals and then isolate the medullary region by stripping away the adrenal cortex.  The digestion of the medulla into single chromaffin cells is then demonstrated.

Watch this Scientific Journal Video about Mouse Adrenal Chromaffin Cell Isolation at JoVE.com

Mouse Adrenal Chromaffin Cell Isolation

Adrenal medullary chromaffin cell culture systems are extremely useful for the study of excitation-secretion coupling in an in vitro setting. This protocol illustrates the method used to dissect the adrenals and then isolate the medullary region by stripping away the adrenal cortex. The digestion of the medulla into single chromaffin cells is then demonstrated.

Adrenal medullary chromaffin cell culture systems are extremely useful for the study of excitation-secretion coupling in an in vitro setting.  This ...

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Vidéo: Mouse Adrenal Chromaffin Cell Isolation

Mouse Dorsal Forebrain Explant Isolation

This video demonstrates the protocol for isolating and culturing explants of the mouse forebrain from embyonic day 12 mice. Procedures for removal of the uterus, embryos from uterus, and dissection of embryos are given. In addition the methodology for transferring these explants onto specialized membranes on which they are cultured is demonstrated. The development of the forebrain can be studied in vitro using this preparations as well as changes in gene expression.

Isolation and Culture of Post-Natal Mouse Cerebellar Granule Neuron Progenitor Cells and Neurons 

The cerebellar cortex is a well described structure that provides unique opportunities for studying neuronal properties and development1,2. Of the cerebellar neuronal types (granule cells, Purkinje cells and inhibitory interneurons), granule neurons are by far the most numerous and are the most abundant type of neurons in the mammalian brain. In rodents, cerebellar granule neurons are generated during the first two post-natal weeks from progenitor cells in the outermost layer of the cerebellar cortex, the external granule layer (EGL). The protocol presented here describes techniques to enrich and culture granule neurons and their progenitor cells from post-natal mouse cerebellum. We will describe procedures to obtain cultures of increasing purity3,4, which can be used to study the differentiation of proliferating progenitor cells into granule neurons5,6. Once the progenitor cells differentiate, the cultures also provide a homogenous population of granule neurons for experimental manipulation and characterization of phenomena such as synaptogenesis, glutamate receptor function7, interaction with other purified cerebellar cells8,9 or cell death7.

Isolation and Culture of Post-Natal Mouse Cerebellar Granule Neuron Progenitor Cells and Neurons

Here we present a method to isolate and culture cerebellar granule neuron progenitor cells and cerebellar granule neurons from postnatal mouse.

The cerebellar cortex is a well described structure that provides unique opportunities for studying neuronal properties and development1,2. Of the ...

Isolation and Derivation of Mouse Embryonic Germinal Cells

The ability of embryonic germinal cells (EG) to differentiate into primordial germinal cells (PGCs) and later into gametes during early developmental stages is a perfect model to address our hypothesis about cancer and infertility. This protocol shows how to isolate primordial germinal cells from developing gonads in 10.5-11.5 days post coitum (dpc) mouse embryos.  Developing gonadal ridges from mouse embryos (C57BL6J) were dissociated by mechanical disruption with collagenase, then plated in a mouse embryo fibroblast feeder layer (MEF-CF1) that was previously mitotically inactivated with mitomycin C in the presence of knockout media and supplemented with Leukemia Inhibitor Factor (LIF), basic Fibroblast Growth Factor (bFGF), and Stem Cell Factor (SCF).  Using these optimized methods for PCG identification, isolation, and establishment of culture conditions permits long term cultures of EG cells for more than 40 days.  The embryonic germinal cell lines showed embryonic phenotype and expression of common used markers of the pluripotent state.  Isolation and derivation of germinal cells in culture provide a tool to understand their development in vitro and offer the opportunity to monitor cumulative damage at genetic and epigenetic levels after exposure to oxidative stress.

The ability of embryonic germinal cells to differentiate into primordial germinal cells during early development stages is a perfect model to address our hypothesis about cancer and infertility. This protocol shows how to isolate primordial germinal cells from developing gonads in 10.5-11.5 days post coitum mouse embryos.

The ability of embryonic germinal cells (EG) to differentiate into primordial germinal cells (PGCs) and later into gametes during early developmental ...

In vivo Imaging and Therapeutic Treatments in an Orthotopic Mouse Model of Ovarian Cancer

Human cancer and response to therapy is better represented in orthotopic animal models. This paper describes the development of an orthotopic mouse model of ovarian cancer, treatment of cancer via oral delivery of drugs, and monitoring of tumor cell behavior in response to drug treatment in real time using in vivo imaging system. In this orthotopic model, ovarian tumor cells expressing luciferase are applied topically by injecting them directly into the mouse bursa where each ovary is enclosed. Upon injection of D-luciferin, a substrate of firefly luciferase, luciferase-expressing cells generate bioluminescence signals. This signal is detected by the in vivo imaging system and allows for a non-invasive means of monitoring tumor growth, distribution, and regression in individual animals. Drug administration via oral gavage allows for a maximum dosing volume of 10 mL/kg body weight to be delivered directly to the stomach and closely resembles delivery of drugs in clinical treatments. Therefore, techniques described here, development of an orthotopic mouse model of ovarian cancer, oral delivery of drugs, and in vivo imaging, are useful for better understanding of human ovarian cancer and treatment and will improve targeting this disease.

In vivo Imaging and Therapeutic Treatments in an Orthotopic Mouse Model of Ovarian Cancer

Orthotopic animal models of ovarian cancer replicate better human disease and therefore enhance our understanding of cancer progression and tumor response to therapy. A mouse model receives an intrabursal injection of luciferase-expressing ovarian tumor cells. Treatment is administered via oral gavage. Tumor growth is monitored by in vivo imaging system.

Human cancer and response to therapy is better represented in orthotopic animal models.  This paper describes the development of an orthotopic mouse model ...

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Mature salivary glands of both human and mouse origin comprise a minimum of five cell types, each of which facilitates the production and excretion of saliva into the oral cavity. Serous and mucous acinar cells are the protein and mucous producing factories of the gland respectively, and represent the origin of saliva production. Once synthesised, the various enzymatic and other proteinaceous components of saliva are secreted through a series of ductal cells bearing epithelial-type morphology, until the eventual expulsion of the saliva through one major duct into the cavity of the mouth. The composition of saliva is also modified by the ductal cells during this process.
In the manifestation of diseases such as Sj&ouml;gren's syndrome, and in some clinical situations such as radiotherapy treatment for head and neck cancers, saliva production by the glands is dramatically reduced 1,2. The resulting xerostomia, a subjective feeling of dry mouth, affects not only the ability of the patient to swallow and speak, but also encourages the development of dental caries and can be socially debilitating for the sufferer.
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An optimized protocol for the isolation of stem cells from the mouse salivary gland is described. The method employs enzymatic and mechanical digestion, and permits isolation of salispheres containing cells with characteristics of stem cells.

Mature salivary glands of both human and mouse origin comprise a minimum of five cell types, each of which facilitates the production and excretion of ...

Isolation &#38; Characterization of Hoechstlow CD45negative Mouse Lung Mesenchymal Stem Cells

Tissue resident mesenchymal stem cells (MSC) are important regulators of tissue repair or regeneration, fibrosis, inflammation, angiogenesis and tumor formation. Taken together these studies suggest that resident lung MSC play a role during pulmonary tissue homeostasis, injury and repair during diseases such as pulmonary fibrosis (PF) and arterial hypertension (PAH). Here we describe a technology to define a population of resident lung MSC. The definition of this population in vivo pulmonary tissue using a define set of markers facilitates the repeated isolation of a well-characterized stem cell population by flow cytometry and the study of a specific cell type and function.

Isolation &amp; Characterization of Hoechstlow CD45negative Mouse Lung Mesenchymal Stem Cells

In this article we demonstrate the isolation of murine resident lung mesenchymal stem cells (lung MSC), their expansion, characterization and analysis of immunomodulatory properties.

Tissue resident mesenchymal stem cells (MSC) are important regulators of tissue repair or regeneration, fibrosis, inflammation, angiogenesis and tumor ...

Generation of Mice Derived from Induced Pluripotent Stem Cells

The production of induced pluripotent stem cells (iPSCs) from somatic cells provides a means to create valuable tools for basic research and may also produce a source of patient-matched cells for regenerative therapies. iPSCs may be generated using multiple protocols and derived from multiple cell sources. Once generated, iPSCs are tested using a variety of assays including immunostaining for pluripotency markers, generation of three germ layers in embryoid bodies and teratomas, comparisons of gene expression with embryonic stem cells (ESCs) and production of chimeric mice with or without germline contribution2. Importantly, iPSC lines that pass these tests still vary in their capacity to produce different differentiated cell types2. This has made it difficult to establish which iPSC derivation protocols, donor cell sources or selection methods are most useful for different applications.
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Generating induced pluripotent stem cell (iPSC) lines produces lines of differing developmental potential even when they pass standard tests for pluripotency. Here we describe a protocol to produce mice derived entirely from iPSCs, which defines the iPSC lines as possessing full pluripotency1.

The production of induced pluripotent stem cells (iPSCs) from somatic cells provides a means to create valuable tools for basic research and may also ...

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Cardiomyocytes, the workhorse cell of the heart, contain exquisitely organized cytoskeletal and contractile elements that generate the contractile force ...

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Isolation and Culture of Adult Mouse Cardiomyocytes for Cell Signaling and in vitro Cardiac Hypertrophy

We describe a reliable method for isolation of adult mouse cardiomyocytes. This protocol yields a consistent result for the culture of functional adult cardiomyocytes from a variety of genetically modified mice.

Technological advances have made genetically modified mice, including transgenic and gene knockout mice, an essential tool in many research fields. Adult ...

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Adrenal activity can be assessed in the equine species by analysis of feces for corticosterone metabolites. The method offers a non-invasive option to assess long term patterns in both domestic and free ranging horses. This protocol describes the enzyme linked immunoassay involved and the associated biochemical validation.

Adrenal activity can be assessed in the equine species by analysis of feces for corticosterone metabolites. During a potentially aversive situation, ...