Name: derivation and differentiation of canine ovarian mesenchymal stem cells
Uploaded: 2018-12-16T13:00:00
Description: Watch this Scientific Journal Video about Derivation and Differentiation of Canine Ovarian Mesenchymal Stem Cells at JoVE.com

The authors acknowledge the canine sterilization program at UNESP-FCAV for kindly providing the ovaries. This work was supported by grants from FAPESP (process no. 2013/14293-0) and CAPES.

This experiment was performed with the ovaries of four mongrel female dogs donated after elective surgery at a canine sterilization program. This experiment was approved by the Ethics Committee on the use of animals of UNESP-FCAV (protocol no. 026991/13).
1. Experimental Preparation
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	<li>Prepare or purchase 500 mL of sterile Dulbecco&#39;s phosphate-buffered saline (DPBS) without calcium or magnesium.</li>
	<li>Prepare a collagenase I stock solution by mixing 40 &#181;g of the enzyme in...

<ol>
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Herein we provide evidence that MSCs can be isolated from canine ovarian tissue, which is considered biological waste after ovariectomy. Due to the fact that many cell types can be found in the ovary, we proposed a protocol to select MSCs based on their rapid adherence to plastic, which successfully selected cells that grew in a monolayer with a fibroblast-like morphology. 
The first report of the derivation of MSCs from bone marrow was based on the plastic adhesion capacity of the MSCs during...

The number of published studies that focus on stem cells has increased substantially over the past decade, a research effort that has been fueled by the collective goal of discovering powerful regenerative medicine therapies. Stem cells have two primary defining markers: self- renovation and differentiation. Mesenchymal stem cells are responsible for regular tissue turnover and have a more restricted capacity of differentiation when compared to embryonic stem cells1. Recently, many studies have shown a wide range of differentiation of MSCs, and a topic under discussion is whether differences between embryonic and adult stem cells exist at all2.
The ovarium surface epithelium is an uncommitted layer of cells, relatively less differentiated, which expresses both epithelial and mesenchymal markers3, retaining the capacity to differentiate into different types of cells in response to environmental signals4. The exact location of stem cells in the ovary is not well known; however, it has been proposed that bipotential progenitors in the tunica albuginea give rise to germ cells5. Immunological studies have hypothesized that these cells have a stromal origin6 or are located in or proximal to the ovary surface7. Since mesenchymal stem cells express numerous receptors that play an important role in cell adhesion8, an experiment was designed to test the hypothesis that selecting a population of cells with rapid adhesion would isolate a population of cells clearly characterizable as mesenchymal in nature. Recently, our group reported the derivation of MSCs from ovarian tissue based on their capacity of adhesion to the plastic surface of the culture dish in the first 3 h of culture, in order to obtain a purified population of cells exhibiting rapid adhesion9. Here, we describe the developed method for mesenchymal stem cell isolation from the ovarian tissue.

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	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">DPBS&#160;</td>
			<td style="width:151px;">Thermo Fisher</td>
			<td style="width:123px;">14190144</td>
			<td style="width:171px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">Collagenase I</td>
			<td style="width:151px;">Thermo Fisher</td>
			<td style="width:123px;">17100017</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">Tissue flask</td>
			<td style="width:151px;">Corning</td>
			<td style="width:123px;">CLS3056</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">DMEM low glucose</td>
			<td style="width:151px;">Thermo Fisher</td>
			<td style="width:123px;">11054020</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">FBS</td>
			<td style="width:151px;">Thermo Fisher</td>
			<td style="width:123px;">12484-010</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">TrypLE express</td>
			<td style="width:151px;">Thermo Fisher</td>
			<td style="width:123px;">12604021</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:221px;">StemPro Adipogenesis Differentiation Kit</td>
			<td style="width:151px;">Thermo Fisher</td>
			<td style="width:123px;">A1007001</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:221px;">StemPro Chondrogenesis Differentiation Kit</td>
			<td style="width:151px;">Thermo Fisher</td>
			<td style="width:123px;">A1007101</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:221px;">StemPro Osteogenesis Differentiation Kit</td>
			<td style="width:151px;">Thermo Fisher</td>
			<td style="width:123px;">A1007201</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:221px;">STEMdiff Definitive Endoderm Kit</td>
			<td style="width:151px;">StemCell</td>
			<td style="width:123px;">5110</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">Penicillin-Streptomycin</td>
			<td style="width:151px;">Thermo Fisher</td>
			<td style="width:123px;">15070063</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">CD45</td>
			<td style="width:151px;">AbD Serotec</td>
			<td style="width:123px;">MCA 2035S</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">CD34</td>
			<td style="width:151px;">AbD Serotec</td>
			<td style="width:123px;">MCA 2411GA</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">CD90</td>
			<td style="width:151px;">AbD Serotec</td>
			<td style="width:123px;">MCA 1036G</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">CD44</td>
			<td style="width:151px;">AbD Serotec</td>
			<td style="width:123px;">MCA 1041</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">Nestin</td>
			<td style="width:151px;">Milipore</td>
			<td style="width:123px;">MAB353</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">&#946;-Tubulin&#160;</td>
			<td style="width:151px;">Milipore</td>
			<td style="width:123px;">MAB1637</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">DDX4</td>
			<td style="width:151px;">Invitrogen</td>
			<td style="width:123px;">PA5 -23378</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">IgG- FITC</td>
			<td style="width:151px;">AbD Serotec</td>
			<td style="width:123px;">STAR80F</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:221px;">IgG- FITC</td>
			<td style="width:151px;">AbD Serotec</td>
			<td style="width:123px;">STAR120F</td>
			<td></td>
		</tr>
	</tbody>
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derivation and differentiation of canine ovarian mesenchymal stem cells

Interest in mesenchymal stem cells (MSCs) has increased over the past decade due to their ease of isolation, expansion, and culture. Recently, studies have demonstrated the wide differentiation capacity that these cells possess. The ovary represents a promising candidate for cell-based therapies due to the fact that it is rich in MSCs and that it is frequently discarded after ovariectomy surgeries as biological waste. This article describes procedures for the isolation, expansion, and differentiation of MSCs derived from the canine ovary, without the necessity of cell-sorting techniques. This protocol represents an important tool for regenerative medicine because of the broad applicability of these highly differentiable cells in clinical trials and therapeutic uses.

Mesenchymal Stem Cell Isolation from Canine Ovary:
The ovarian MSC isolation procedure is summarized in Figure 1. After surgery, tissue mincing, collagenase digestion, and a media change 3 h after the beginning of the culture, a putative MSC population with rapid plastic-adhesive properties was successfully isolated from canine ovarian tissue. The harvested cells ra...

Watch this Scientific Journal Video about Derivation and Differentiation of Canine Ovarian Mesenchymal Stem Cells at JoVE.com

Derivation and Differentiation of Canine Ovarian Mesenchymal Stem Cells

Herein, we describe a method for the isolation, expansion, and differentiation of mesenchymal stem cells from canine ovarian tissue.

Interest in mesenchymal stem cells (MSCs) has increased over the past decade due to their ease of isolation, expansion, and culture. Recently, studies ...

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