Limits...
Adipose Stem Cells Display Higher Regenerative Capacities and More Adaptable Electro-Kinetic Properties Compared to Bone Marrow-Derived Mesenchymal Stromal Cells

View Article: PubMed Central - PubMed

ABSTRACT

Adipose stem cells (ASCs) have recently emerged as a more viable source for clinical applications, compared to bone-marrow mesenchymal stromal cells (BM-MSCs) because of their abundance and easy access. In this study we evaluated the regenerative potency of ASCs compared to BM-MSCs. Furthermore, we compared the dielectric and electro-kinetic properties of both types of cells using a novel Dielectrophoresis (DEP) microfluidic platform based on a printed circuit board (PCB) technology. Our data show that ASCs were more effective than BM-MSCs in promoting neovascularization in an animal model of hind-limb ischemia. When compared to BM-MSCs, ASCs displayed higher resistance to hypoxia-induced apoptosis, and to oxidative stress-induced senescence, and showed more potent proangiogenic activity. mRNA expression analysis showed that ASCs had a higher expression of Oct4 and VEGF than BM-MSCs. Furthermore, ASCs showed a remarkably higher telomerase activity. Analysis of the electro-kinetic properties showed that ASCs displayed different traveling wave velocity and rotational speed compared to BM-MSCs. Interestingly, ASCs seem to develop an adaptive response when exposed to repeated electric field stimulation. These data provide new insights into the physiology of ASCs, and evidence to their potential superior potency compared to marrow MSCs as a source of stem cells.

No MeSH data available.


Related in: MedlinePlus

(A) ASCs have a significantly higher telomerase activity than BM-MSCs: Quantification of telomerase activity in BM-MSCs and ASCs was assayed using a fluorescent PCR-based telomerase activity detection method, TRAP (Telomeric Repeat Amplification Protocol). Telomerase activity is shown as amole of product/mg protein. (B) mRNA expression levels in ASCs with reference to BM-MSCs: qPCR analysis showed a higher expression of Oct4, VEGF, FGF, and TGF-β in ASCs while MMPII expression was higher in BM-MSCs. Data are shown as mean ± S.D. (error bars). ****p < 0.005.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC5121630&req=5

f5: (A) ASCs have a significantly higher telomerase activity than BM-MSCs: Quantification of telomerase activity in BM-MSCs and ASCs was assayed using a fluorescent PCR-based telomerase activity detection method, TRAP (Telomeric Repeat Amplification Protocol). Telomerase activity is shown as amole of product/mg protein. (B) mRNA expression levels in ASCs with reference to BM-MSCs: qPCR analysis showed a higher expression of Oct4, VEGF, FGF, and TGF-β in ASCs while MMPII expression was higher in BM-MSCs. Data are shown as mean ± S.D. (error bars). ****p < 0.005.

Mentions: We assayed telomerase activity in cell lysates of BM-MSCs and ASCs using a PCR-based telomerase activity detection method, TRAP (Telomeric Repeat Amplification Protocol). Figure 5A shows significantly higher telomerase activity in ASCs compared to BM-MSCs (p < 0.005).


Adipose Stem Cells Display Higher Regenerative Capacities and More Adaptable Electro-Kinetic Properties Compared to Bone Marrow-Derived Mesenchymal Stromal Cells
(A) ASCs have a significantly higher telomerase activity than BM-MSCs: Quantification of telomerase activity in BM-MSCs and ASCs was assayed using a fluorescent PCR-based telomerase activity detection method, TRAP (Telomeric Repeat Amplification Protocol). Telomerase activity is shown as amole of product/mg protein. (B) mRNA expression levels in ASCs with reference to BM-MSCs: qPCR analysis showed a higher expression of Oct4, VEGF, FGF, and TGF-β in ASCs while MMPII expression was higher in BM-MSCs. Data are shown as mean ± S.D. (error bars). ****p < 0.005.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5121630&req=5

f5: (A) ASCs have a significantly higher telomerase activity than BM-MSCs: Quantification of telomerase activity in BM-MSCs and ASCs was assayed using a fluorescent PCR-based telomerase activity detection method, TRAP (Telomeric Repeat Amplification Protocol). Telomerase activity is shown as amole of product/mg protein. (B) mRNA expression levels in ASCs with reference to BM-MSCs: qPCR analysis showed a higher expression of Oct4, VEGF, FGF, and TGF-β in ASCs while MMPII expression was higher in BM-MSCs. Data are shown as mean ± S.D. (error bars). ****p < 0.005.
Mentions: We assayed telomerase activity in cell lysates of BM-MSCs and ASCs using a PCR-based telomerase activity detection method, TRAP (Telomeric Repeat Amplification Protocol). Figure 5A shows significantly higher telomerase activity in ASCs compared to BM-MSCs (p < 0.005).

View Article: PubMed Central - PubMed

ABSTRACT

Adipose stem cells (ASCs) have recently emerged as a more viable source for clinical applications, compared to bone-marrow mesenchymal stromal cells (BM-MSCs) because of their abundance and easy access. In this study we evaluated the regenerative potency of ASCs compared to BM-MSCs. Furthermore, we compared the dielectric and electro-kinetic properties of both types of cells using a novel Dielectrophoresis (DEP) microfluidic platform based on a printed circuit board (PCB) technology. Our data show that ASCs were more effective than BM-MSCs in promoting neovascularization in an animal model of hind-limb ischemia. When compared to BM-MSCs, ASCs displayed higher resistance to hypoxia-induced apoptosis, and to oxidative stress-induced senescence, and showed more potent proangiogenic activity. mRNA expression analysis showed that ASCs had a higher expression of Oct4 and VEGF than BM-MSCs. Furthermore, ASCs showed a remarkably higher telomerase activity. Analysis of the electro-kinetic properties showed that ASCs displayed different traveling wave velocity and rotational speed compared to BM-MSCs. Interestingly, ASCs seem to develop an adaptive response when exposed to repeated electric field stimulation. These data provide new insights into the physiology of ASCs, and evidence to their potential superior potency compared to marrow MSCs as a source of stem cells.

No MeSH data available.


Related in: MedlinePlus