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2 Cell Transplantation studies impact dental stem cell research for therapeutic purposes
Date:5/8/2012

Roxo St. Ribeirao Preto, Brazil.
Tel. 55 (11) 3091-7690
Email patriciacbbbraga@usp.br

Citation: Beltro-Braga, P. C. B.; Pignatari, G. C.; Maiorka, P. C.; Oliveira, N. A. J.; Lizier, N. F.; Wenceslau, C. V.; Miglino, M. A.; Muotri, A. R.; Kerkis, I.
Feeder-free derivation of induced pluripotent stem cells from human immature dental pulp stem cells. Cell Transplant. 20(11-12):1707-1719;2011.

Human dental cells analyzed for telomere length, telomerase activity

A research team from the Republic of Korea has isolated a population of stem cells derived from dental tissues of third molars and found that human dental papilla stem cells (DPaSCs; dental papilla develops into dentin and dental pulp) have biological features similar to bone marrow-derived mesenchymal stem cells (MSCs) in terms of telomere length, telomerase activity and reverse transcriptase (Rtase) activity.

MSCs, one of the most studied and clinically important populations of adult stem cells, do have shortcomings associated with their isolation and expansion from bone marrow, said study lead author Dr. Gyu-Jin Rho of the College of Veterinary Medicine, Gyeongsang National University, Republic of Korea.

"The role of telomere and telomerase are critical biological features of normal tissue stem and progenitor cells," said Dr. Rho. "Telomeres are a specialized region of repetitive DNA, and telomere shortening is related to cellular life span. Lack of telomerase indicates cellular aging. We compared the telomere length and telomerase activity in DPaSCs with those in MSCs and found that DPaSCs possessed ideal characteristics on telomere length, telomerase activity and reverse transcriptase activity, making DPaSCs suitable alternative candidates for regenerative medicine."

The researchers concluded that DPaSCs could provide a source of stem cells for tooth regeneration and repair as well as a w
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Contact: David Eve
celltransplantation@gmail.com
Cell Transplantation Center of Excellence for Aging and Brain Repair
Source:Eurekalert

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