Name: derivation of hematopoietic stem cells from murine embryonic stem cells
Uploaded: 2007-02-25T00:00:00
Description: Watch this Scientific Journal Video about Derivation of Hematopoietic Stem Cells from Murine Embryonic Stem Cells at JoVE.com

<p class="jove_step">Differentiation of Embryonic Stem Cells</p>
<ol>
<li>Collect a near confluent flask of embryonic stem cells (ESC) via treatment with ESC trypsin.</li>
<li>Resuspend cells in 5 mL of Differentiation media and transfer to a non-gelatin coated T25. Incubate at 37&deg;C for 45 minutes. Retrieve supernatant and collect cells via centrifugation.<br /><br /><em>Note: Mouse embryonic fibroblasts (MEFs) from the ESC cultures attach readily to the non-gelatin coated T25 and thus are depleted from the culture during this plating step....

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		<div>
		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>C57Bl/6 Rag-2/gamma-c deficient mice</td>
<td>Animal</td>
<td>Taconic Farm</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Plate shaker</td>
<td>Tool</td>
<td>VWR</td>
<td>33998-360</td>
<td>Orbital Shaker by Ikaworks</td>
</tr>
<tr>
<td>Multi-channel pipettor</td>
<td>Tool</td>
<td>VWR</td>
<td>15000-174</td>
<td>ePet by BioHit</td>
</tr>
<tr>
<td>ES trypsin</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>15090-046</td>
<td>0.25% Trypsin in PBS</td>
</tr>
<tr>
<td>Standard trypsin</td>
<td>Reagent</td>
<td>Invtrogen</td>
<td>25300-062</td>
<td>0.05% Trypsin-EDTA</td>
</tr>
<tr>
<td>PBS</td>
<td>Buffer</td>
<td>Invitrogen</td>
<td>20012-027</td>
<td>&nbsp;</td>
<tr>
<td>Enzyme-free dissociation buffer</td>
<td>Buffer</td>
<td>Invitrogen</td>
<td>13151-014</td>
<td>&nbsp;</td>
<tr>
<td>Dissociation enzyme mix</td>
<td>Buffer</td>
<td>Invitrogen</td>
<td>17104-019</td>
<td>500 mg Collagenase IV</td>
</tr>
<tr>
<td>Hyaluronidase</td>
<td>Reagent</td>
<td>Sigma</td>
<td>H2126</td>
<td>freeze in 500 uL aliquots and avoid repeated freezing and thawing.</td>
</tr>
<tr>
<td>DNAse</td>
<td>Reagent</td>
<td>Sigma</td>
<td>D4527</td>
<td>&nbsp;</td>
<tr>
<td>DMEM</td>
<td>&nbsp;</td>
<td>Invitrogen</td>
<td>10-017CV</td>
<td>&nbsp;</td>
<tr>
<td>Protamine sulfate</td>
<td>Reagent</td>
<td>Sigma</td>
<td>P3369</td>
<td>8 ug/mL</td>
</tr>
<tr>
<td>EB differentiation media</td>
<td>medium</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>Please view recipe on attached Protocol.doc</td>
</tr>
<tr>
<td>10% IMDM</td>
<td>medium</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>Please view recipe on attached Protocol.doc</td>
</tr>
<tr>
<td>10% IMDM+cytokines</td>
<td>medium</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>Please view recipe on attached Protocol.doc</td>
</tr>
<tr>
<td>20% anti-MEM</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>Please view recipe on attached Protocol.doc</td>
</tr>		</tbody>
		</table>
		</div>
	

derivation of hematopoietic stem cells from murine embryonic stem cells

A stem cell is defined as a cell with the capacity to both self-renew and generate multiple differentiated progeny.  Embryonic stem cells (ESC) are derived from the blastocyst of the early embryo and are pluripotent in differentiative ability.  Their vast differentiative potential has made them the focus of much research centered on deducing how to coax them to generate clinically useful cell types.  The successful derivation of hematopoietic stem cells (HSC) from mouse ESC has recently been accomplished and can be visualized in this video protocol.  HSC, arguably the most clinically exploited cell population, are used to treat a myriad of hematopoietic malignancies and disorders.  However, many patients that might benefit from HSC therapy lack access to suitable donors.  ESC could provide an alternative source of HSC for these patients.  The following protocol establishes a baseline from which ESC-HSC can be studied and inform efforts to isolate HSC from human ESC.  In this protocol, ESC are differentiated as embryoid bodies (EBs) for 6 days in commercially available serum pre-screened for optimal hematopoietic differentiation.  EBs are then dissociated and infected with retroviral HoxB4.  Infected EB-derived cells are plated on OP9 stroma, a bone marrow stromal cell line derived from the calvaria of  M-CSF-/- mice, and co-cultured in the presence of hematopoiesis promoting cytokines for ten days.  During this co-culture, the infected cells expand greatly, resulting in the generation a heterogeneous pool of 100s of millions of cells.  These cells can then be used to rescue and reconstitute lethally irradiated mice.

Watch this Scientific Journal Video about Derivation of Hematopoietic Stem Cells from Murine Embryonic Stem Cells at JoVE.com

Derivation of Hematopoietic Stem Cells from Murine Embryonic Stem Cells

<p class="jove_content">This protocol details the derivation of transplantable hematopoietic stem cells from mouse embryonic stem cells (ESC) and their subsequent injection into lethally irradiated recipient mice.  Briefly, ESC are differentiated as embryoid bodies, which are then infected with retroviral HoxB4 and co-cultured with OP9 stromal cells and hematopoietic cytokines.</p>

A stem cell is defined as a cell with the capacity to both self-renew and generate multiple differentiated progeny.  Embryonic stem cells (ESC) are ...

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