alexa Deleted in Azoospermia-Like (DAZL) gene-expressing cells in human amniotic fluid: a new source for germ cells research?
Reproductive Medicine

Reproductive Medicine

Reproductive System & Sexual Disorders: Current Research

Author(s): Stefanidis K, Loutradis D, Koumbi L, Anastasiadou V, Dinopoulou V,

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Abstract OBJECTIVE: To evaluate whether amniotic fluid cells contain a germ-like cell subpopulation. DESIGN: Experimental study. SETTING: University hospital. PATIENT(S): None. INTERVENTION(S): Cells from human amniotic fluid samples were analyzed for messenger RNA expression of Deleted in Azoospermia-Like gene (DAZL) and Oct-4 by reverse transcriptase polymerase chain reaction. DAZL and C-kit protein expression was assessed by flow cytometry. Immunocytochemistry also was performed to determine DAZL-, stage-specific embryonic antigen 4 (SSEA-4)-, and Oct-4-positive cells. MAIN OUTCOME MEASURE(S): DAZL gene expression in amniotic fluid cells. RESULT(S): Reverse transcriptase polymerase chain reaction, flow cytometric, and immunocytochemical analyses revealed that human amniotic fluid consists of a distinct cell population that expresses DAZL, C-kit, SSEA-4, and Oct-4. CONCLUSION(S): Our results suggest that human amniotic fluid represents a new source for the isolation of human DAZL-, C-kit-, SSEA-4-, and Oct-4-positive stem cells without raising the ethical issues associated with human embryonic research. This article was published in Fertil Steril and referenced in Reproductive System & Sexual Disorders: Current Research

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