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Developmental Biology

Derivation and Differentiation of Canine Ovarian Mesenchymal Stem Cells

Published: December 16th, 2018



1The School of Agricultural and Veterinary Studies (FCAV), Jaboticabal, São Paulo State University (UNESP), 2CRRF, Université de Montréal, 3FZEA, University of São Paulo, 4FMVZ, University of São Paulo

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 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.

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 all

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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

  1. Prepare or purchase 500 mL of sterile Dulbecco's phosphate-buffered saline (DPBS) without calcium or magnesium.
  2. Prepare a collagenase I stock solution by mixing 40 µg of the enzyme in.......

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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.......

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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.......

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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.


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Name Company Catalog Number Comments
DPBS  Thermo Fisher 14190144
Collagenase I Thermo Fisher 17100017
Tissue flask Corning CLS3056
DMEM low glucose Thermo Fisher 11054020
FBS Thermo Fisher 12484-010
TrypLE express Thermo Fisher 12604021
StemPro Adipogenesis Differentiation Kit Thermo Fisher A1007001
StemPro Chondrogenesis Differentiation Kit Thermo Fisher A1007101
StemPro Osteogenesis Differentiation Kit Thermo Fisher A1007201
STEMdiff Definitive Endoderm Kit StemCell 5110
Penicillin-Streptomycin Thermo Fisher 15070063
CD45 AbD Serotec MCA 2035S
CD34 AbD Serotec MCA 2411GA
CD90 AbD Serotec MCA 1036G
CD44 AbD Serotec MCA 1041
Nestin Milipore MAB353
β-Tubulin  Milipore MAB1637
DDX4 Invitrogen PA5 -23378
IgG- FITC AbD Serotec STAR80F
IgG- FITC AbD Serotec STAR120F

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