Journal of Regenerative MedicineISSN: 2325-9620

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Research Article, J Regen Med Vol: 3 Issue: 1

Heterogeneity of Stem Cells in Human Amniotic Fluid

Zhisheng Chen1, Michael K Chan2, Nicholas Strelchenko2, Fang Wang2, Li Liu2, Mary Ann Perle3, Ross S Basch3 and Bruce K Young2*
1Department of Animal Medicine, Foshan University, Foshan, China
2Department of Obstetrics and Gynecology, New York University, New York, USA
3Department of Pathology, New York University, New York, USA
Corresponding author : Bruce K Young
Department of Obstetrics and Gynecology, New York University, New York, USA
Tel: 212-263-6359; Fax: 212-263-6329
Received: December 02, 2013 Accepted: February 10, 2014 Published: February 14, 2014
Citation: Chen Z, Chan MK, Strelchenko N, Wang F, Liu L (2014) Heterogeneity of Stem Cells in Human Amniotic Fluid. J Regen Med 3:1. doi:10.4172/2325-9620.10001110


Heterogeneity of Stem Cells in Human Amniotic Fluid

Amniotic fluid contains a mixture of cells with capacity to differentiate into all germ layers. These cells are present in large numbers in midtrimester samples obtained for cytogenetic diagnosis, and have been identified by stem cell surface markers and transcription factors. We studied cultured samples from patients who had both direct cultures and matched cultures obtained 2 weeks later from the cytogenetics laboratory as well as patients with cytogenetics material only. Samples were cryogenically frozen, thawed, expanded in culture with excellent viability. There was considerable individual variation unrelated to gestational age or telomere length. Phenotype for embryonic markers was assessed by flow cytometry and by quantitative polymerase chain reaction. The most consistently present stem cell markers in substantial amounts were CD90, SSEA-4, & TRA-1-60. Cells with CD90, SSEA-4 & TRA-1-60 double and triple labeled also could be identified and subcultured, confirming the heterogeneity of the amniotic fluid stem cell population.

Keywords: Amniotic fluid; Stem cells; Amniotic cells; Transplantation

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