Stemness Evaluation of Mesenchymal Stem Cells from Placentas According to Developmental Stage: Comparison to Those from Adult Bone Marrow.
10.3346/jkms.2010.25.10.1418
- Author:
Hwa Jung SUNG
1
;
Soon Cheol HONG
;
Ji Hyun YOO
;
Jee Hyun OH
;
Hye Jin SHIN
;
In Young CHOI
;
Ki Hoon AHN
;
Sun Haeng KIM
;
Yong PARK
;
Byung Soo KIM
Author Information
1. Institute of Stem Cell Research, Korea University, Seoul, Korea. kbs0309@korea.ac.kr
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
Stemness;
Placenta;
Bone Marrow;
Mesenchymal Stem Cells
- MeSH:
Antigens, Surface/metabolism;
Bone Marrow Cells/*cytology/metabolism;
Cell Proliferation;
Female;
Humans;
Immunophenotyping;
Mesenchymal Stem Cells/*cytology/metabolism;
Mesoderm/cytology;
Octamer Transcription Factor-3/metabolism;
Placenta/*cytology/growth & development;
Pregnancy;
Pregnancy Trimester, First;
Proteoglycans/metabolism;
Stage-Specific Embryonic Antigens/metabolism;
Telomerase/metabolism
- From:Journal of Korean Medical Science
2010;25(10):1418-1426
- CountryRepublic of Korea
- Language:English
-
Abstract:
This study was done to evaluate the stemness of human mesenchymal stem cells (hMSCs) derived from placenta according to the development stage and to compare the results to those from adult bone marrow (BM). Based on the source of hMSCs, three groups were defined: group I included term placentas, group II included first-trimester placentas, and group III included adult BM samples. The stemness was evaluated by the proliferation capacity, immunophenotypic expression, mesoderm differentiation, expression of pluripotency markers including telomerase activity. The cumulative population doubling, indicating the proliferation capacity, was significantly higher in group II (P<0.001, 31.7+/-5.8 vs. 15.7+/-6.2 with group I, 9.2+/-4.9 with group III). The pattern of immunophenotypic expression and mesoderm differentiation into adipocytes and osteocytes were similar in all three groups. The expression of pluripotency markers including ALP, SSEA-4, TRA-1-60, TRA-1-81, Oct-4, and telomerase were strongly positive in group II, but very faint positive in the other groups. In conclusions, hMSCs from placentas have different characteristics according to their developmental stage and express mesenchymal stemness potentials similar to those from adult human BMs.
