Name: isolation and characterization of human umbilical cord-derived mesenchymal stem cells from preterm and term infants
Uploaded: 2019-01-26T13:30:00
Description: Watch this Scientific Journal Video about Isolation and Characterization of Human Umbilical Cord-derived Mesenchymal Stem Cells from Preterm and Term Infants at JoVE.com

This work was supported by Grants-in-Aid for Scientific Research (C) (grant number: 25461644) and Young Scientists (B) (grant numbers: 15K19614, 26860845, 17K16298) of JSPS KAKENHI.

The use of human samples for this study was approved by the ethical committee of Kobe University Graduate School of Medicine (approval no. 1370 and 1694) and conducted in accordance with the approved guidelines.
1. Isolation and Culture of UC-MSCs
NOTE: UC-MSCs have been successfully isolated, cultured, and expanded (more than passage number 4) from more than 200 UCs subjected to this protocol. Among more than 200 UCs, 100% have shown successful UC-MS...

<ol>
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MSCs can be isolated from a variety of tissues and are heterogeneous population of cells that do not all express the same phenotypic markers. Here, we outlined a protocol that guides the collection and dissection of UC from preterm and term infants and enables isolation and culture of UC-MSCs. Following this protocol, we have successfully isolated UC-MSCs that fulfill the ISCT criteria19 from fetuses/infants delivered at 19-40 weeks of gestation and demonstrated that they represent some aspects of...

Mesenchymal stem cells (MSCs) are originally isolated and characterized from bone marrow (BM)1,2 but can also be obtained from a wide variety of tissues including adipose tissue, synovium, skin, dental pulp, and fetal appendages3. MSCs are recognized as a heterogeneous cell population that can proliferate and differentiate into adipocytes, osteocytes, and chondrocytes. In addition, MSCs possess the ability to migrate to sites of injury, suppress and modulate immune responses, and remodel and repair injury. Currently, MSCs from different sources have attracted growing interest as a source for cell therapy against a number of intractable diseases, including graft-versus-host disease, myocardial infarction, and cerebral infarction4,5.
Although BM is the most well-characterized source of MSCs, the invasiveness of BM aspiration ethically limits its accessibility. Proliferation and differentiation capacity of MSCs obtained from BM generally decline with the age of the donor. In contrast, fetal MSCs obtained from fetal appendages such as placenta, umbilical cord blood (UCB), and umbilical cord (UC) have advantages including less ethical concerns regarding sampling and robust proliferation and differentiation capacity6,7. Among fetal appendages that are usually discarded as medical waste, UCB and UC are considered a fetal organ, while placenta is considered fetomaternal. In addition, placenta and UCB need to be sampled and collected at the exact moment of newborn delivery, whereas placenta and UC can be collected and processed after newborn delivery. Accordingly, UC is a promising MSC source for cell therapy8,9.
Human UC starts to develop with progressive expansion of the amniotic cavity at 4-8 weeks of gestation, continues to grow until 50-60 cm in length, and can be isolated during the whole period of newborn delivery10. To gain insight into the pathophysiology of intractable diseases, we use UC-derived MSCs (UC-MSCs) from infants delivered at various gestational ages11,12. In this protocol, we describe how to isolate and characterize UC-MSCs from fetuses/infants at 19-40 weeks of gestation.

<table border="0" cellpadding="0" cellspacing="0" style="width:1455px;" width="1455">
	<tbody>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">50mL plastic tube</td>
			<td style="width:336px;">AS One Coporation, Osaka, Japan</td>
			<td style="width:379px;">Violamo 1-3500-22</td>
			<td style="width:312px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">12-well plate</td>
			<td>AGC Techno Glass, Tokyo, Japan</td>
			<td style="width:379px;">Iwaki 3815-012</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">60mm dish</td>
			<td>AGC Techno Glass, Tokyo, Japan</td>
			<td style="width:379px;">Iwaki 3010-060</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Cell strainer (100 &#956;m)</td>
			<td style="width:336px;">Thermo Fisher Scientific, Waltham, MA&#160;</td>
			<td style="width:379px;">Falcon 35-2360</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Cell strainer (70 &#956;m)</td>
			<td style="width:336px;">Thermo Fisher Scientific, Waltham, MA&#160;</td>
			<td style="width:379px;">Falcon 35-2350</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Alpha MEM</td>
			<td style="width:336px;">Wako Pure Chemical, Osaka, Japan</td>
			<td style="width:379px;">135-15175</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Fetal bovine serum</td>
			<td style="width:336px;">Sigma Aldrich, St. Louis, MO</td>
			<td style="width:379px;">172012</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Reduced serum medium</td>
			<td style="width:336px;">Thermo Fisher Scientific, waltham, MA</td>
			<td style="width:379px;">OPTI-MEM Gibco 31985-070</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Antibiotic-antimycotic</td>
			<td style="width:336px;">Thermo Fisher Scientific, Waltham, MA&#160;</td>
			<td style="width:379px;">Gibco 15240-062</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Trypsin-EDTA</td>
			<td style="width:336px;">Wako Pure Chemical, Osaka, Japan</td>
			<td style="width:379px;">209-16941</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PBS</td>
			<td style="width:336px;">Takara BIO, Shiga,Japan</td>
			<td style="width:379px;">T900</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Purified enzyme blends</td>
			<td style="width:336px;">Roche, Mannheim, Germany</td>
			<td style="width:379px;">Liberase DH Research Grade 05401054001</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse primary antibody against CD14</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">347497</td>
			<td>Lot: 3220644, RRID: AB_400312</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse primary antibody against CD19</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">340364</td>
			<td>Lot: 3198741, RRID: AB_400018</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse primary antibody against CD34</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">555822</td>
			<td>Lot: 3079912, RRID: AB_396151</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse primary antibody against CD45</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">555483</td>
			<td>Lot: 2300520, RRID: AB_395875</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse primary antibody against CD73</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">550257</td>
			<td>Lot: 3057778, RRID: AB_393561</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse primary antibody against CD90</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">555596</td>
			<td>Lot: 3128616, RRID: AB_395970</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse primary antibody against CD105</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">560839</td>
			<td>Lot: 4339624, RRID: AB_2033932</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse primary antibody against HLA-DR</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">347367</td>
			<td>Lot: 3219843, RRID: AB_400293</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse IgG1 k isotype</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">555749</td>
			<td>Lot: 3046675, RRID: AB_396091</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse IgG2a k isotype</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">555574</td>
			<td>Lot: 3035934, RRID: AB_395953</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">PE-conjugated mouse IgG2b k isotype</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">555743</td>
			<td>Lot: 3098896, RRID: AB_396086</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Viability dye</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td style="width:379px;">Fixable Viability Stain 450 562247</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Blocking reagent</td>
			<td style="width:336px;">Dainippon Pharmaceutical, Osaka, Japan</td>
			<td style="width:379px;">Block Ace UKB80</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">FCM</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td>BD FACSAria&#160; III Cell Sorter</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">FCM software</td>
			<td style="width:336px;">BD Bioscience, Franklin Lakes, NJ</td>
			<td>BD FACSDiva</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Adipogenic differentiation medium</td>
			<td style="width:336px;">Invitrogen, Carlsbad, CA</td>
			<td>StemPro Adipogenesis Differentiation kit A10070-01</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Osteogenic differentiation medium</td>
			<td style="width:336px;">Invitrogen, Carlsbad, CA</td>
			<td>StemPro Osteogenesis Differentiation kit A10072-01</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Chondrogenic differentiation medium&#160;</td>
			<td style="width:336px;">Invitrogen, Carlsbad, CA</td>
			<td>StemPro Chondrogenesis Differentiation kit A10071-01</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Formaldehyde</td>
			<td style="width:336px;">Polyscience, Warrigton, PA</td>
			<td>16% UltraPure Formaldehyde EM Grade #18814</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Oil Red O</td>
			<td style="width:336px;">Sigma Aldrich, St. Louis, MO</td>
			<td style="width:379px;">O0625</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Arizarin Red S</td>
			<td style="width:336px;">Sigma Aldrich, St. Louis, MO</td>
			<td style="width:379px;">A5533</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Toluidine Blue</td>
			<td style="width:336px;">Sigma Aldrich, St. Louis, MO</td>
			<td style="width:379px;">198161</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:428px;">Microscope</td>
			<td style="width:336px;">Keyence, Osaka, Japan</td>
			<td style="width:379px;">BZ-X700</td>
			<td></td>
		</tr>
	</tbody>
</table>

isolation and characterization of human umbilical cord-derived mesenchymal stem cells from preterm and term infants

Mesenchymal stem cells (MSCs) have considerable therapeutic potential and attract increasing interest in the biomedical field. MSCs are originally isolated and characterized from bone marrow (BM), then acquired from tissues including adipose tissue, synovium, skin, dental pulp, and fetal appendages such as placenta, umbilical cord blood (UCB), and umbilical cord (UC). MSCs are a heterogeneous cell population with the capacity for (1) adherence to plastic in standard culture conditions, (2) surface marker expression of CD73+/CD90+/CD105+/CD45-/CD34-/CD14-/CD19-/HLA-DR- phenotypes, and (3) trilineage differentiation into adipocytes, osteocytes, and chondrocytes, as currently defined by the International Society for Cellular Therapy (ISCT). Although BM is the most widely used source of MSCs, the invasive nature of BM aspiration ethically limits its accessibility. Proliferation and differentiation capacity of MSCs obtained from BM generally decline with the age of the donor. In contrast, fetal MSCs obtained from UC have advantages such as vigorous proliferation and differentiation capacity. There is no ethical concern for UC sampling, as it is typically regarded as medical waste. Human UC starts to develop with continuing growth of the amniotic cavity at 4-8 weeks of gestation and keeps growing until reaching 50-60 cm in length, and it can be isolated during the whole newborn delivery period. To gain insight into the pathophysiology of intractable diseases, we have used UC-derived MSCs (UC-MSCs) from infants delivered at various gestational ages. In this protocol, we describe the isolation and characterization of UC-MSCs from fetuses/infants at 19-40 weeks of gestation.

The procedures from UC collection to MSC culture are summarized in Figure 1. UC of approximately 5-10 cm in length can be collected from all newborns delivered by cesarean section. UC starts to develop at 4-8 weeks of gestation and continues to grow until 50-60 cm in length, as shown in Figure 2. There are two arteries (A), one vein (V), cord lining (CL), and Wharton&#39;s Jelly (WJ) in UC, as depicted in Fig...

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Isolation and Characterization of Human Umbilical Cord-derived Mesenchymal Stem Cells from Preterm and Term Infants

Human umbilical cord (UC) can be obtained during the perinatal period as a result of preterm, term, and postterm delivery. In this protocol, we describe the isolation and characterization of UC-derived mesenchymal stem cells (UC-MSCs) from fetuses/infants at 19-40 weeks of gestation.

Mesenchymal stem cells (MSCs) have considerable therapeutic potential and attract increasing interest in the biomedical field. MSCs are originally ...

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